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  1. /*27/7/2013 version 0.01
  2. "Inspired" by FLY program: http://martin.gleeson.com/fly
  3. *********************************************************************************
  4. * J.M. Evers 7/2013                                                             *
  5. * This is all just amateur scriblings... So no copyrights.                      *
  6. * This source code file, and compiled objects derived from it,                  *
  7. * can be used and distributed without restriction, including for commercial use *
  8. * No warrenty whatsoever                                                        *
  9. *********************************************************************************
  10. */
  11. #include "canvasdraw.h"
  12.  
  13. /******************************************************************************
  14. **  Internal Functions
  15. ******************************************************************************/
  16. void    add_to_buffer(char *tmp); /* add tmp_buffer to the buffer */
  17. void    sync_input(FILE *infile);/* proceed with inputfile */
  18. void    add_javascript_functions(int js_functions[], int canvas_root_id);
  19. void    reset();/* reset some global variables like "use_filled" , "use_dashed" */
  20. int     get_token(FILE *infile); /* read next char until EOL*/
  21. /*
  22. int     x2px(double x);
  23. int     y2px(double y);
  24. */
  25. double  px2x(int x);
  26. double  px2y(int y);
  27. double  get_real(FILE *infile,int last); /* read a value; calculation and symbols allowed */
  28. char    *str_replace ( const char *word, const char *sub_word, const char *rep_word );
  29. char    *get_color(FILE *infile,int last); /* read hex-color or colorname -> hex */
  30. char    *get_string(FILE *infile,int last); /* get the string at the end of a command */
  31. char    *get_string_argument(FILE *infile,int last); /* the same, but with "comma" as  separator */
  32. char    *convert_hex2rgb(char *hexcolor);
  33. void    add_read_canvas(int canvas_root_id,int reply_format,int reply_precision);
  34. void    make_js_include(int canvas_root_id);
  35. void    check_string_length(int length);/* checks if the length of string argument of command is correct */
  36. FILE    *js_include_file;
  37. FILE    *get_file(int *line_number, char **filename);
  38. FILE    *infile;    /* will be stdin */
  39. /******************************************************************************
  40. ** global
  41. ******************************************************************************/
  42. int finished = FALSE;/* main variable for signalling the end of the fly-script ; if finished = 1 ; write to stdout or canvasz */
  43. int line_number = 1;/* used in canvas_error() ; keep track of line number in canvasdraw/fly - script */
  44. /* set some variables to avoid trouble (NaN) in case of syntax and other usage errors */
  45. int xsize = 320;
  46. int ysize = 320;
  47. double xmin = 0.0;
  48. double xmax = 320.0;
  49. double ymin = 0.0;
  50. double ymax = 320.0;
  51. double tmax = 2;
  52. double tmin = -2;
  53. /* flag to indicate parsing of line status */
  54. int done = FALSE;
  55. int type; /* eg command number */
  56. int onclick = 0;/* 0 = noninteractive ; 1 = onclick ; 2 = draggable*/
  57. int slider = 0;/* slider=1 : x-values ; slider=2 : y-values;slider=3 angle values */
  58. int use_affine = FALSE;
  59. int use_rotate = FALSE;
  60. int use_filled = FALSE;
  61. int use_dashed = FALSE; /* dashing not natively supported in firefox  , for now... */
  62.  
  63. char buffer[MAX_BUFFER];/* contains js-functions with arguments ... all other basic code is directly printed into js-include file */
  64.  
  65. /******************************************************************************
  66. ** Main Program
  67. ******************************************************************************/
  68. int main(int argc, char *argv[]){
  69.     /* need unique id for every call to canvasdraw : rand(); is too slow...will result in many identical id's */
  70.     struct timeval tv;struct timezone tz;gettimeofday(&tv, &tz);unsigned int canvas_root_id = (unsigned int) tv.tv_usec;
  71.     infile = stdin;/* read flyscript via stdin */
  72.     int i,c;
  73.     double double_data[MAX_INT+1];
  74.     int int_data[MAX_INT+1];
  75.     for(i=0;i<MAX_INT;i++){int_data[i]=0;double_data[i]=0;}
  76.     int use_parametric = FALSE;/* will be reset after parametric plotting */
  77.     int use_axis = FALSE;
  78.     int use_axis_numbering = FALSE;
  79.     int use_pan_and_zoom = FALSE;
  80.     int use_safe_eval = FALSE; /* if true, add just once : js function to evaluate userinput values for plotting etc */
  81.     int use_js_math = FALSE; /* if true add js-function to convert math_function --> javascript math_function */
  82.     int use_js_plot = FALSE; /* if true , let js-engine plot the curve */
  83.     int line_width = 1;
  84.     int decimals = 2;
  85.     int precision = 100; /* 10 = 1;100=2;1000=3 decimal display for mouse coordinates or grid coordinate */
  86.     int use_userdraw = FALSE; /* flag to indicate user interaction: incompatible with "drag & drop" code !! */
  87.     int drag_type = -1;/* 0,1,2 : xy,x,y */
  88.     int use_tooltip = FALSE;
  89.     char *tooltip_text = "Click here";
  90.     char *temp = ""; /* */
  91.     char *bgcolor = "";/* used for background of canvas_div ; default is tranparent */
  92.     char *stroke_color = "255,0,0";
  93.     char *fill_color = "0,255,0";
  94.     char *font_family = "12px Ariel"; /* commands xaxistext,yaxistext,legend,text/textup/string/stringup may us this */
  95.     char *font_color = "#00000";
  96.     char *draw_type = "points";
  97.     char *fly_font = "normal";
  98.     char *input_style = "";
  99.     char *flytext = "";
  100.     char *affine_matrix = "[1,0,0,1,0,0]";
  101.     char *function_label = "f(x)=";
  102.     int pixelsize = 1;
  103.     int reply_format = 0;
  104.     int input_cnt = 0;
  105.     int ext_img_cnt = 0;
  106.     int slider_cnt = 0;
  107.     int font_size = 12;
  108.     int dashtype[2] = { 4 , 4 };
  109.     int js_function[MAX_JS_FUNCTIONS]; /* javascript functions include objects on demand basis : only once per object type */
  110.     for(i=0;i<MAX_JS_FUNCTIONS;i++){js_function[i]=0;}
  111.     int arrow_head = 8; /* size in px*/
  112.     int crosshair_size = 5; /* size in px*/
  113.     int plot_steps = 250;
  114.     int found_size_command = 0; /* 1 = found size ; 2 = found xrange; 3 = found yrange*/
  115.     int click_cnt = 1;
  116.     int clock_cnt = 0; /* counts the amount of clocks used -> unique object clock%d */
  117.     int linegraph_cnt = 0; /* identifier for command 'linegraph' ; multiple line graphs may be plotted in a single plot*/
  118.     int barchart_cnt = 0; /* identifier for command 'barchart' ; multiple charts may be plotted in a single plot*/
  119.     int legend_cnt = -1; /* to allow multiple legends to be used, for multiple piecharts etc  */
  120.     int reply_precision = 100; /* used for precision of student answers / drawings */
  121.     double angle = 0.0;
  122.     int clickfillmarge = 20;
  123.     int animation_type = 9; /* == object type curve in drag library */
  124.     int use_input_xy = 0; /* 1= input fields 2= textarea 3=calc y value*/
  125.     int use_slider_display = 0; /* in case of a slider, should we display it's value ?*/
  126.     size_t string_length = 0;
  127.     double stroke_opacity = 0.8;
  128.     double fill_opacity = 0.8;
  129.     char *URL = "http://localhost/images";
  130.     memset(buffer,'\0',MAX_BUFFER);
  131.     void *tmp_buffer = "";
  132.  
  133.     /* default writing a unzipped js-include file into wims getfile directory */
  134.     char *w_wims_session = getenv("w_wims_session");
  135.     if(  w_wims_session == NULL || *w_wims_session == 0 ){
  136.         canvas_error("Hmmm, your wims environment does not exist...\nCanvasdraw should be used within wims.");
  137.     }
  138.     int L0=strlen(w_wims_session) + 21;
  139.     char *getfile_dir = my_newmem(L0); /* create memory to fit string precisely */
  140.     snprintf(getfile_dir,L0, "../sessions/%s/getfile",w_wims_session);/* string will fit precisely  */
  141.     mode_t process_mask = umask(0); /* check if file exists */
  142.     int result = mkdir(getfile_dir, S_IRWXU | S_IRWXG | S_IRWXO);
  143.     if( result == 0 || errno == EEXIST ){
  144.      umask(process_mask); /* be sure to set correct permission */
  145.      char *w_session = getenv("w_session");
  146.      int L1 = (int) (strlen(w_session)) + find_number_of_digits(canvas_root_id) + 48;
  147.     char *getfile_cmd = my_newmem(L1); /* create memory to fit string precisely */
  148.      snprintf(getfile_cmd,L1,"wims.cgi?session=%s&cmd=getfile&special_parm=%d.js",w_session,canvas_root_id);/* extension ".gz" is MANDATORY for webserver */
  149.     /* write the include tag to html page:<script type="text/javascript" src="wims.cgi?session=%s&cmd=getfile&special_parm=11223344_js"></script> */
  150.     /* now write file into getfile dir*/
  151.     char *w_wims_home = getenv("w_wims_home"); /* "/home/users/wims" : we need absolute path for location */
  152.     int L2 = (int) (strlen(w_wims_home)) + (int) (strlen(w_wims_session)) + find_number_of_digits(canvas_root_id) + 23;
  153.     char *location = my_newmem(L2); /* create memory to fit string precisely */
  154.     snprintf(location,L2,"%s/sessions/%s/getfile/%d.js",w_wims_home,w_wims_session,canvas_root_id);/*absolute path */
  155.     js_include_file = fopen(location,"w");/* open the file location for writing */
  156.     /* check on opening...if nogood : mount readonly? disk full? permissions not set correctly? */
  157.     if(js_include_file == NULL){ canvas_error("SHOULD NOT HAPPEN : could not write to javascript include file...check your system logfiles !" );}
  158.  
  159. /* ----------------------------------------------------- */
  160. /* while more lines to process */
  161.  
  162.     while(!finished){
  163.         if(line_number>1 && found_size_command == 0){canvas_error("command \"size xsize,ysize\" needs to come first ! ");}
  164.         type = get_token(infile);
  165.         done = FALSE;
  166.         /*
  167.         @canvasdraw
  168.         @will try use the same syntax as flydraw or svgdraw to paint a html5 bitmap image<br />by generating a tailor-made javascript include file: providing only the js-functionality needed to perform the job.<br />thus ensuring a minimal strain on the client browser <br />(unlike some popular 'canvas-do-it-all' libraries, who have proven to be not suitable for low-end computers found in schools...)
  169.         @General syntax <ul><li>The transparency of all objects can be controlled by command 'opacity [0-255],[0,255]'</il><li>a line based object can be controlled by command 'linewidth int'</li><li>a line based object may be dashed by using keyword 'dashed' before the object command.<br />the dashing type can be controled by command 'dashtype int,int'</li><li>a fillable object can be set fillable by starting the object command with an 'f'<br />(like frect,fcircle,ftriangle...)<br />or by using the keyword 'filled' before the object command.<br />The fill colour will be the stroke colour...(19/10/2013)</li><li> all draggable objects may have a slider for translation / rotation; several objects may be translated / rotated by a single slider</li> <li> a draggable object can be set draggable by a preceding command 'drag x/y/xy'<br />The translation can be read by javascript:read_dragdrop();The replyformat is : object_number : x-orig : y-orig : x-drag : y-drag<br />The x-orig/y-orig will be returned in maximum precision (javascript float)...<br />the x-drag/y-drag will be returned in defined 'precision' number of decimals<br />Multiple objects may be set draggable / clickable (no limit)<br /> not all flydraw objects may be dragged / clicked<br />Only draggable / clickable objects will be scaled on zoom and will be translated in case of panning</li><li> a 'onclick object' can be set 'clickable' by the preceding keyword 'onclick'<br />not all flydraw objects can be set clickable</li><li><b>remarks using a ';' as command separator</b><br />commands with only numeric or colour arguments may be using a ';' as command separator (in stead of a new line)<br />commands with a string argument may not use a ';' as command separator !<br />these exceptions are not really straight forward... so keep this in mind.</li></ul>
  170.         @If needed multiple interactive scripts may be used in a single webpage.<br />A function 'read_canvas()' and / or 'read_dragdrop()' can read all interactive userdata from these images.<br />The global array 'canvas_scripts' will contain all unique random "canvas_root_id" of the included scripts.<br />The included local javascript "read" functions "read_canvas%d()" and "read_dragdrop%d()" will have this "%d = canvas_root_id"<br />e.g. canvas_scripts[0] will be the random id of the first script in the page and will thus provide a function<br />fun = eval("read_canvas"+canvas_scripts[0]) to read user based drawings / inputfield in this first image.<br />The read_dragdrop is analogue.<br />Use command 'replyformat' to format the replies for an individual canvas script,<br />To read all user interactions from all included canvas scripts , use something like:<br /><em>function read_all_canvas_images(){<br />&nbsp;var script_len = canvas_scripts.length;<br />&nbsp;var draw_reply = "";<br />&nbsp;var found_result = false;<br />&nbsp;for(var p = 0 ; p < script_len ; p++){<br />&nbsp;&nbsp;var fun = eval("read_canvas"+canvas_scripts[p]);<br />&nbsp;&nbsp;if( typeof fun === 'function'){<br />&nbsp;&nbsp;&nbsp;var result = fun();<br />&nbsp;&nbsp;&nbsp;if( result&nbsp;&nbsp;&& result.length != 0){<br />&nbsp;&nbsp;&nbsp;&nbsp;if(script_len == 1 ){ return result;};<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;found_result = true;<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;draw_reply = draw_reply + result + "\\n";<br />&nbsp;&nbsp;&nbsp;&nbsp;};<br />&nbsp;&nbsp;&nbsp;};<br />&nbsp;&nbsp;};<br />&nbsp;if( found_result ){return draw_reply;}else{return null;};<br />};</em>    
  171.         */
  172.         switch(type){
  173.         case END:
  174.         finished = 1;
  175.         done = TRUE;
  176.         break;
  177.         case 0:
  178.             sync_input(infile);
  179.             break;
  180.         case COMMENT:
  181.             sync_input(infile);
  182.             break;
  183.         case EMPTY:
  184.             sync_input(infile);
  185.             break;
  186.         case SIZE:
  187.             /*
  188.             @size width,height
  189.             @set canvas size in pixels
  190.             @mandatory first command
  191.             @if xrange and/or yrange is not given the range will be set to pixels :<br />xrange 0,xsize yrange 0,ysize<br />note: lower left  corner is Origin (0:0) !!! this in contrast to flydraw
  192.             */
  193.             found_size_command = 1;
  194.             xsize = (int)(abs(round(get_real(infile,0)))); /* just to be sure that sizes > 0 */
  195.             ysize = (int)(abs(round(get_real(infile,1))));
  196.             /* sometimes we want xrange / yrange to be in pixels...without telling x/y-range */
  197.             xmin = 0;xmax = xsize;
  198.             ymin = 0;ymax = ysize;
  199.  
  200. /*
  201.  The sequence in which stuff is finally printed is important !!
  202.  for example, when writing a 'include.js" the may not be a "script tag <script>" etc etc
  203. */
  204. fprintf(stdout,"\n<script type=\"text/javascript\">\
  205. if( typeof wims_status === 'undefined' ){ var wims_status = \"$status\";};\
  206. if( typeof use_dragdrop_reply === 'undefined' ){ var use_dragdrop_reply = false;};\
  207. if( typeof canvas_scripts === 'undefined' ){ var canvas_scripts = new Array();};\
  208. canvas_scripts.push(\"%d\");</script>\n\
  209. <!-- canvasdraw div and tooltip placeholder, if needed -->\n\
  210. <div tabindex=\"0\" id=\"canvas_div%d\" style=\"position:relative;width:%dpx;height:%dpx;margin-left:auto;margin-right:auto;\" ></div>\n\
  211. <div id=\"tooltip_placeholder_div%d\" style=\"display:block;position:relative;margin-left:auto;margin-right:auto;margin-bottom:4px;\">\
  212. <span id=\"tooltip_placeholder%d\" style=\"display:none;\">\n</span>\
  213. </div>\n",canvas_root_id,canvas_root_id,xsize,ysize,canvas_root_id,canvas_root_id);
  214. fprintf(stdout,"<!-- include actual object code via include file -->\n<script id=\"canvas_script%d\" type=\"text/javascript\" src=\"%s\"></script>\n",canvas_root_id,getfile_cmd);
  215. fprintf(js_include_file,"\n<!-- begin generated javascript include for canvasdraw -->\n\
  216. \"use strict\";\n\
  217. <!-- these variables and functions must be global -->\n\
  218. var read_dragdrop%d;\
  219. var read_canvas%d;\
  220. var set_clock;\
  221. var clear_draw_area;\
  222. var wims_canvas_function%d = function(){\n<!-- common used stuff -->\n\
  223. var userdraw_x = [];var userdraw_y = [];var userdraw_radius = [];\n\
  224. var xsize = %d;\
  225. var ysize = %d;\
  226. var precision = 100;\
  227. var canvas_div = document.getElementById(\"canvas_div%d\");\
  228. var create_canvas%d = function(canvas_type,size_x,size_y){var cnv;if(document.getElementById(\"wims_canvas%d\"+canvas_type)){ cnv = document.getElementById(\"wims_canvas%d\"+canvas_type);}else{try{ cnv = document.createElement(\"canvas\"); }catch(e){alert(\"Your browser does not support HTML5 CANVAS:GET FIREFOX !\");return;};canvas_div.appendChild(cnv);};cnv.width = size_x;cnv.height = size_y;cnv.style.top = 0;cnv.style.left = 0;cnv.style.position = \"absolute\";cnv.id = \"wims_canvas%d\"+canvas_type;return cnv;};\
  229. function findPosX(i){ var obj = i;var curleft = 0;if(obj.offsetParent){while(1){curleft += obj.offsetLeft;if(!obj.offsetParent){break;};obj = obj.offsetParent;};}else{if(obj.x){curleft += obj.x;};};return curleft;};function findPosY(i){var obj = i;var curtop = 0;if(obj.offsetParent){while(1){curtop += obj.offsetTop;if(!obj.offsetParent){break;};obj = obj.offsetParent;};}else{if(obj.y){curtop += obj.y;};};return curtop;};\
  230. function x2px(x){if(use_xlogscale == 0 ){return parseFloat(x*xsize/(xmax - xmin) - xsize*xmin/(xmax - xmin));}else{var x_max = Math.log(xmax)/Math.log(xlogbase);var x_min = Math.log(xmin)/Math.log(xlogbase);var x_in = Math.log(x)/Math.log(xlogbase);return x_in*xsize/(x_max - x_min) - xsize*x_min/(x_max - x_min);};};\
  231. function px2x(px){if(use_xlogscale == 0 ){return parseFloat(px*(xmax - xmin)/xsize + xmin);}else{var x_max = Math.log(xmax)/Math.log(xlogbase);var x_min = Math.log(xmin)/Math.log(xlogbase);var x_out = x_min +px*(x_max - x_min)/(xsize);return Math.pow(xlogbase,x_out);};};\
  232. function px2y(py){if(use_ylogscale == 0 ){return parseFloat(ymax - py*(ymax - ymin)/ysize);}else{var y_max = Math.log(ymax)/Math.log(ylogbase);var y_min = Math.log(ymin)/Math.log(ylogbase);var y_out = y_max +py*(y_min - y_max)/(ysize);return Math.pow(ylogbase,y_out);};};\
  233. function y2px(y){if(use_ylogscale == 0){return parseFloat(-1*y*ysize/(ymax - ymin) + ymax*ysize/(ymax - ymin));}else{var y_max = Math.log(ymax)/Math.log(ylogbase);var y_min = Math.log(ymin)/Math.log(ylogbase);var y_in = Math.log(y)/Math.log(ylogbase);return (y_max - y_in)*ysize/(y_max - y_min);};};\
  234. function scale_x_radius(rx){return rx*xsize/(xmax - xmin);};\
  235. function scale_y_radius(ry){return ry*ysize/(ymax - ymin);};\
  236. function distance(x1,y1,x2,y2){return parseInt(Math.sqrt( (x1-x2)*(x1-x2) + (y1-y2)*(y1-y2) ));};\
  237. function distance_to_line (r,q,x,y){var c = (y) - (-1/r)*(x);var xs = r*(c - q)/(r*r+1);var ys = (r)*(xs)+(q);return parseInt(Math.sqrt( (xs-x)*(xs-x) + (ys-y)*(ys-y) ));};\
  238. function move(obj,dx,dy){for(var p = 0 ; p < obj.x.length; p++){obj.x[p] = obj.x[p] + dx;obj.y[p] = obj.y[p] + dy;};return obj;};\
  239. function slide(obj,dx,dy){for(var p = 0 ; p < obj.x.length; p++){obj.x[p] = x2px(obj.xorg[p] + dx);obj.y[p] = y2px(obj.yorg[p] + dy);};return obj;};\
  240. var x_use_snap_to_grid = 0;var y_use_snap_to_grid = 0;var snap_x = 1;var snap_y = 1;\
  241. function snap_to_x(x){return x2px(snap_x*(Math.round((px2x(x))/snap_x)));};\
  242. function snap_to_y(y){return y2px(snap_y*(Math.round((px2y(y))/snap_y)));};\
  243. var xlogbase = 10;\
  244. var ylogbase = 10;\
  245. var use_xlogscale = 0;\
  246. var use_ylogscale = 0;\
  247. var x_strings = null;\
  248. var y_strings = null;\
  249. var use_pan_and_zoom = 0;\
  250. var use_jsmath = 0;\
  251. var xstart = 0;\
  252. var ystart = 0;\
  253. var unit_x=\" \";\
  254. var unit_y=\" \";",canvas_root_id,canvas_root_id,canvas_root_id,xsize,ysize,canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
  255. /* default add the drag code : nearly always used ...*/
  256.   add_drag_code(js_include_file,DRAG_CANVAS,canvas_root_id);
  257.  
  258.             break;
  259.         case XRANGE:
  260.         /*
  261.         @ xrange xmin,xmax
  262.         @ if not given: 0,xsize (eg in pixels)
  263.         */
  264.             for(i = 0 ; i<2; i++){
  265.                 switch(i){
  266.                     case 0: xmin = get_real(infile,0);break;
  267.                     case 1: xmax = get_real(infile,1);break;
  268.                     default: break;
  269.                 }
  270.             }
  271.             if(xmin >= xmax){canvas_error(" xrange is not OK : xmin &lt; xmax !\n");}
  272.             fprintf(js_include_file,"var xmin = %f;var xmax = %f;",xmin,xmax);
  273.             found_size_command++;
  274.             break;
  275.         case YRANGE:
  276.         /*
  277.         @ yrange ymin,ymax
  278.         @ if not given 0,ysize (eg in pixels)
  279.         */
  280.             for(i = 0 ; i<2; i++){
  281.                 switch(i){
  282.                     case 0: ymin = get_real(infile,0);break;
  283.                     case 1: ymax = get_real(infile,1);break;
  284.                     default: break;
  285.                 }
  286.             }
  287.             if(ymin >= ymax){canvas_error(" yrange is not OK : ymin &lt; ymax !\n");}
  288.             fprintf(js_include_file,"var ymin = %f;var ymax = %f;",ymin,ymax);
  289.             found_size_command++;
  290.             break;
  291.         case TRANGE:
  292.         /*
  293.         @ trange tmin,tmax
  294.         @ default -2,2
  295.         */
  296.             use_parametric = TRUE;
  297.             for(i = 0 ; i<2; i++){
  298.                 switch(i){
  299.                     case 0: tmin = get_real(infile,0);break;
  300.                     case 1: tmax = get_real(infile,1);break;
  301.                     default: break;
  302.                 }
  303.             }
  304.             if(tmin >= tmax ){canvas_error(" trange is not OK : tmin &lt; tmax!\n");}
  305.             break;
  306.         case LINEWIDTH:
  307.         /*
  308.         @ linewidth int
  309.         @ default 1
  310.         */
  311.             line_width = (int) (get_real(infile,1));
  312.             break;
  313.         case ARROWHEAD:
  314.         /*
  315.         @ arrowhead int
  316.         @ default 8 (pixels)
  317.         */
  318.             arrow_head = (int) (get_real(infile,1));
  319.             break;
  320.         case CROSSHAIRSIZE:
  321.         /*
  322.         @ crosshairsize int
  323.         @ default 8 (px)
  324.         */
  325.             crosshair_size = (int) (get_real(infile,1));
  326.             break;
  327.         case CROSSHAIR:
  328.         /*
  329.         @ crosshair x,y,color
  330.         @ draw a single crosshair point at (x;y) in color 'color'
  331.         @ use command 'crosshairsize int' and / or 'linewidth int'  to adust
  332.         @ may be set draggable / onclick
  333.         */
  334.             for(i=0;i<3;i++){
  335.                 switch(i){
  336.                     case 0: double_data[0] = get_real(infile,0);break; /* x */
  337.                     case 1: double_data[1] = get_real(infile,0);break; /* y */
  338.                     case 2: stroke_color = get_color(infile,1);/* name or hex color */
  339.                         decimals = find_number_of_digits(precision);
  340.                         fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,7,[%.*f],[%.*f],[%d],[%d],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[0],decimals,double_data[1],crosshair_size,crosshair_size,line_width,stroke_color,stroke_opacity,fill_color,fill_opacity,use_filled,0,0,0,use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt);
  341.                         click_cnt++;reset();
  342.                         break;
  343.                     default:break;
  344.                 }
  345.             }
  346.             break;
  347.         case CROSSHAIRS:
  348.         /*
  349.         @ crosshairs color,x1,y1,x2,y2,...,x_n,y_n
  350.         @ draw multiple crosshair points at given coordinates in color 'color'
  351.         @ use command 'crosshairsize int' and / or 'linewidth int'  to adust
  352.         @ may be set draggable / onclick individually (!)
  353.         */
  354.             stroke_color=get_color(infile,0); /* how nice: now the color comes first...*/
  355.             fill_color = stroke_color;
  356.             i=0;
  357.             while( ! done ){     /* get next item until EOL*/
  358.                 if(i > MAX_INT - 1){canvas_error("to many points in argument: repeat command multiple times to fit");}
  359.                 if(i%2 == 0 ){
  360.                     double_data[i] = get_real(infile,0); /* x */
  361.                 }
  362.                 else
  363.                 {
  364.                     double_data[i] = get_real(infile,1); /* y */
  365.                 }
  366.                 i++;
  367.             }
  368.             decimals = find_number_of_digits(precision);
  369.             for(c=0 ; c < i-1 ; c = c+2){
  370.                 fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,7,[%.*f],[%.*f],[%d],[%d],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[c],decimals,double_data[c+1],crosshair_size,crosshair_size,line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,1,0,0,0,use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt);
  371.                 click_cnt++;
  372.             }
  373.             reset();
  374.             break;
  375.         case POINT:
  376.         /*
  377.         @ point x,y,color
  378.         @ draw a single point at (x;y) in color 'color'
  379.         @ use command 'linewidth int'  to adust size
  380.         @ may be set draggable / onclick
  381.         @ will not resize on zooming <br />(command 'circle x,y,r,color' will resize on zooming)
  382.         */
  383.             for(i=0;i<3;i++){
  384.                 switch(i){
  385.                     case 0: double_data[0] = get_real(infile,0);break; /* x */
  386.                     case 1: double_data[1] = get_real(infile,0);break; /* y */
  387.                     case 2: stroke_color = get_color(infile,1);/* name or hex color */
  388.                     decimals = find_number_of_digits(precision);
  389.                     fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,2,[%.*f],[%.*f],[%d],[%d],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[0],decimals,double_data[1],line_width,line_width,line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,1,0,0,0,use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt);
  390.                     click_cnt++;break;
  391.                     default: break;
  392.                 }
  393.             }
  394.             reset();
  395.             break;
  396.         case POINTS:
  397.         /*
  398.         @ points color,x1,y1,x2,y2,...,x_n,y_n
  399.         @ draw multiple points at given coordinates in color 'color'
  400.         @ use command 'linewidth int'  to adust size
  401.         @ may be set draggable / onclick individually (!)
  402.         */
  403.             stroke_color=get_color(infile,0); /* how nice: now the color comes first...*/
  404.             fill_color = stroke_color;
  405.             i=0;
  406.             while( ! done ){     /* get next item until EOL*/
  407.                 if(i > MAX_INT - 1){canvas_error("to many points in argument: repeat command multiple times to fit");}
  408.                 if(i%2 == 0 ){
  409.                     double_data[i] = get_real(infile,0); /* x */
  410.                 }
  411.                 else
  412.                 {
  413.                     double_data[i] = get_real(infile,1); /* y */
  414.                 }
  415.                 i++;
  416.             }
  417.             decimals = find_number_of_digits(precision);
  418.             for(c = 0 ; c < i-1 ; c = c+2){
  419.                 fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,2,[%.*f],[%.*f],[%d],[%d],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[c],decimals,double_data[c+1],line_width,line_width,line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,1,0,0,0,use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt);
  420.                 click_cnt++;
  421.             }
  422.             reset();
  423.             break;
  424.         case SEGMENTS:
  425.         /*
  426.         @ segments color,x1,y1,x2,y2,...,x_n,y_n
  427.         @ draw multiple segments at given coordinates in color 'color'
  428.         @ use command 'linewidth int'  to adust size
  429.         @ may be set draggable / onclick individually (!)
  430.         */
  431.             stroke_color=get_color(infile,0); /* how nice: now the color comes first...*/
  432.             fill_color = stroke_color;
  433.             i=0;
  434.             while( ! done ){     /* get next item until EOL*/
  435.                 if(i > MAX_INT - 1){canvas_error("to many points in argument: repeat command multiple times to fit");}
  436.                 if(i%2 == 0 ){
  437.                     double_data[i] = get_real(infile,0); /* x */
  438.                 }
  439.                 else
  440.                 {
  441.                     double_data[i] = get_real(infile,1); /* y */
  442.                 }
  443.                 i++;
  444.             }
  445.             decimals = find_number_of_digits(precision);
  446.             for(c = 0 ; c < i-1 ; c = c+4){
  447.                 fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,4,[%.*f,%.*f],[%.*f,%.*f],[30,30],[30,30],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[c],decimals,double_data[c+2],decimals,double_data[c+1],decimals,double_data[c+3],line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,0,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt);
  448.                 click_cnt++;
  449.             }
  450.             reset();
  451.             break;
  452.         case SEGMENT:
  453.         /*
  454.         @ segment x1,y1,x2,y2,color
  455.         @ draw a line segment between points (x1:y1)--(x2:y2) in color 'color'
  456.         @ may be set draggable / onclick
  457.         */
  458.             for(i=0;i<5;i++) {
  459.                 switch(i){
  460.                     case 0: double_data[0]= get_real(infile,0);break; /* x1-values */
  461.                     case 1: double_data[1]= get_real(infile,0);break; /* y1-values */
  462.                     case 2: double_data[2]= get_real(infile,0);break; /* x2-values */
  463.                     case 3: double_data[3]= get_real(infile,0);break; /* y2-values */
  464.                     case 4: stroke_color=get_color(infile,1);/* name or hex color */
  465.                         decimals = find_number_of_digits(precision);
  466.                         fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,4,[%.*f,%.*f],[%.*f,%.*f],[30,30],[30,30],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[0],decimals,double_data[2],decimals,double_data[1],decimals,double_data[3],line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,0,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt);
  467.                         click_cnt++;reset();
  468.                         break;
  469.                     default: break;
  470.                 }
  471.             }
  472.             break;
  473.         case LINE:
  474.         /*
  475.         @ line x1,y1,x2,y2,color
  476.         @ draw a line through points (x1:y1)--(x2:y2) in color 'color'
  477.         @ or use command 'curve color,formula' to draw the line <br />(uses more points to draw the line; is however better draggable)
  478.         @ may be set draggable / onclick
  479.         */
  480.             for(i=0;i<5;i++){
  481.                 switch(i){
  482.                     case 0: double_data[10]= get_real(infile,0);break; /* x-values */
  483.                     case 1: double_data[11]= get_real(infile,0);break; /* y-values */
  484.                     case 2: double_data[12]= get_real(infile,0);break; /* x-values */
  485.                     case 3: double_data[13]= get_real(infile,0);break; /* y-values */
  486.                     case 4: stroke_color=get_color(infile,1);/* name or hex color */
  487.                     if( double_data[10] == double_data[12] ){ /* vertical line*/
  488.                         double_data[1] = xmin;
  489.                         double_data[3] = ymax;
  490.                         double_data[0] = double_data[10];
  491.                         double_data[2] = double_data[10];
  492.                     }
  493.                     else
  494.                     {
  495.                         if( double_data[11] == double_data[13] ){ /* horizontal line */
  496.                             double_data[1] = double_data[11];
  497.                             double_data[3] = double_data[11];
  498.                             double_data[0] = ymin;
  499.                             double_data[2] = xmax;
  500.                         }
  501.                         else
  502.                         {
  503.                         /* m */
  504.                         double_data[5] = (double_data[13] - double_data[11]) /(double_data[12] - double_data[10]);
  505.                         /* q */
  506.                         double_data[6] = double_data[11] - ((double_data[13] - double_data[11]) /(double_data[12] - double_data[10]))*double_data[10];
  507.  
  508.                         /*xmin,m*xmin+q,xmax,m*xmax+q*/
  509.  
  510.                             double_data[1] = (double_data[5])*(xmin)+(double_data[6]);
  511.                             double_data[3] = (double_data[5])*(xmax)+(double_data[6]);
  512.                             double_data[0] = xmin;
  513.                             double_data[2] = xmax;
  514.                         }
  515.                     }
  516.                     decimals = find_number_of_digits(precision);
  517.                     fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,4,[%.*f,%.*f],[%.*f,%.*f],[30,30],[30,30],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[0],decimals,double_data[2],decimals,double_data[1],decimals,double_data[3],line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,0,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt);
  518.                     click_cnt++;reset();
  519.                     break;
  520.                 }
  521.             }
  522.             break;
  523.         case HALFLINE:
  524.         /*
  525.         @ demiline x1,y1,x2,y2,color
  526.         @ alternative : halfline
  527.         @ draws a halfline starting in (x1:y1) and through (x2:y2) in color 'color' (colorname or hex)
  528.         @ may be set draggable / onclick
  529.         */
  530.             for(i=0;i<5;i++){
  531.                 switch(i){
  532.                     case 0: double_data[0]= get_real(infile,0);break; /* x-values */
  533.                     case 1: double_data[1]= get_real(infile,0);break; /* y-values */
  534.                     case 2: double_data[10]= get_real(infile,0);break; /* x-values */
  535.                     case 3: double_data[11]= get_real(infile,0);break; /* y-values */
  536.                     case 4: stroke_color=get_color(infile,1);/* name or hex color */
  537.                     if(double_data[0] == double_data[10]){ /* vertical halfline */
  538.                         if(double_data[1] < double_data[11]){
  539.                          double_data[3] = ymax + 1000;
  540.                         }
  541.                         else
  542.                         {
  543.                          double_data[3] = ymin - 1000;
  544.                         }
  545.                         double_data[2] = double_data[0];
  546.                     }
  547.                     else
  548.                     { /* horizontal halfline*/
  549.                      if( double_data[1] == double_data[11] ){
  550.                       if( double_data[0] < double_data[10] ){
  551.                         double_data[2] = xmax + 1000; /* halfline to the right */
  552.                       }
  553.                       else
  554.                       {
  555.                         double_data[2] = xmin - 1000; /* halfline to the left */
  556.                       }
  557.                       double_data[3] = double_data[1];
  558.                      }
  559.                      else
  560.                      {
  561.                       /* any other halfline */
  562.                       /* slope */
  563.                       double_data[12] = (double_data[11] - double_data[1])/(double_data[10] - double_data[0]);
  564.                       /* const */
  565.                       double_data[13] = double_data[1] - double_data[12]*double_data[0];
  566.                       if( double_data[0] < double_data[10] ){
  567.                        double_data[2] = double_data[2] + 1000;
  568.                       }
  569.                       else
  570.                       {
  571.                        double_data[2] = double_data[2] - 1000;
  572.                       }
  573.                       double_data[3] = double_data[12]*double_data[2] + double_data[13];
  574.                      }
  575.                     }    
  576.                     decimals = find_number_of_digits(precision);
  577.                     fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,18,[%.*f,%.*f],[%.*f,%.*f],[30,30],[30,30],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[0],decimals,double_data[2],decimals,double_data[1],decimals,double_data[3],line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,0,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt);
  578.                     click_cnt++;reset();
  579.                     break;
  580.                 }
  581.             }
  582.        
  583.             break;
  584.         case HLINE:
  585.         /*
  586.         @ hline x,y,color
  587.         @ draw a horizontal line through point (x:y) in color 'color'
  588.         @ or use command 'curve color,formula' to draw the line <br />(uses more points to draw the line; is however better draggable)
  589.         @ may be set draggable / onclick
  590.         */
  591.             for(i=0;i<3;i++) {
  592.                 switch(i){
  593.                     case 0: double_data[0] = get_real(infile,0);break; /* x-values */
  594.                     case 1: double_data[1] = get_real(infile,0);break; /* y-values */
  595.                     case 2: stroke_color = get_color(infile,1);/* name or hex color */
  596.                     double_data[3] = double_data[1];
  597.                     decimals = find_number_of_digits(precision);
  598.                     fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,4,[%.*f,%.*f],[%.*f,%.*f],[30,30],[30,30],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d));\n",click_cnt,onclick,drag_type,decimals,xmin,decimals,xmax,decimals,double_data[1],decimals,double_data[3],line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,0,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt);
  599.                     click_cnt++;reset();
  600.                     break;
  601.                 }
  602.             }
  603.             break;
  604.         case VLINE:
  605.         /*
  606.         @ vline x,y,color
  607.         @ draw a vertical line through point (x:y) in color 'color'
  608.         @ may be set draggable / onclick
  609.         */
  610.             for(i=0;i<3;i++) {
  611.                 switch(i){
  612.                     case 0: double_data[0] = get_real(infile,0);break; /* x-values */
  613.                     case 1: double_data[1] = get_real(infile,0);break; /* y-values */
  614.                     case 2: stroke_color=get_color(infile,1);/* name or hex color */
  615.                         double_data[2] = double_data[0];
  616.                         decimals = find_number_of_digits(precision);
  617.                         fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,4,[%.*f,%.*f],[%.*f,%.*f],[30],[30],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[0],decimals,double_data[2],decimals,ymin,decimals,ymax,line_width,stroke_color,stroke_opacity,fill_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt);
  618.                         click_cnt++;reset();
  619.                     break;
  620.                 }
  621.             }
  622.             break;
  623.         case SQUARE:
  624.         /*
  625.         @ square x,y,side (px) ,color
  626.         @ draw a square with left top corner (x:y) with side 'side' in color 'color'
  627.         @ use command 'fsquare x,y,side,color' for a filled square
  628.         @ use command/keyword  'filled' before command 'square x,y,side,color'
  629.         @ use command 'fillcolor color' before 'fsquare' to set the fill colour.
  630.         @ may be set draggable / onclick
  631.         */
  632.             for(i=0;i<5;i++){
  633.                 switch(i){
  634.                     case 0:double_data[0] = get_real(infile,0);break; /* x1-values */
  635.                     case 1:double_data[1] = get_real(infile,0);break; /* y1-values */
  636.                     case 2:double_data[2] = (int) (get_real(infile,0));break; /* width in px */
  637.                     case 3:
  638.                         stroke_color = get_color(infile,1);/* name or hex color */
  639.                         decimals = find_number_of_digits(precision);
  640.                         double_data[3] = double_data[0] + (xmax - xmin)*double_data[2]/xsize;
  641.                         double_data[4] = double_data[1] + -1*(ymax - ymin)*double_data[2]/ysize;
  642.                         fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,1,[%.*f,%.*f,%.*f,%.*f],[%.*f,%.*f,%.*f,%.*f],[%d],[%d],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[0],decimals,double_data[3],decimals,double_data[3],decimals,double_data[0],decimals,double_data[1],decimals,double_data[1],decimals,double_data[4],decimals,double_data[4],line_width,line_width,line_width,stroke_color,stroke_opacity,stroke_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt);
  643.                         click_cnt++;reset();
  644.                         break;
  645.                 }
  646.             }
  647.             break;
  648.         case ROUNDRECT:
  649.         /*
  650.         @ roundrect x1,y1,x2,y2,radius,color
  651.         @ use command 'froundrect x1,y1,x2,y2,radius,color' for a filled rectangle
  652.         @ use command/keyword  'filled' before command 'roundrect x1,y1,x2,y2,radius,color'
  653.         @ use command 'fillcolor color' before 'froundrect' to set the fill colour.
  654.         @ may be set draggable / onclick
  655.         */
  656.             for(i=0;i<6;i++){
  657.                 switch(i){
  658.                     case 0:double_data[0] = get_real(infile,0);break; /* x-values */
  659.                     case 1:double_data[1] = get_real(infile,0);break; /* y-values */
  660.                     case 2:double_data[2] = get_real(infile,0);break; /* x-values */
  661.                     case 3:double_data[3] = get_real(infile,0);break; /* y-values */
  662.                     case 4:int_data[0] = (int) (get_real(infile,0));break; /* radius value in pixels */
  663.                     case 5:stroke_color = get_color(infile,1);/* name or hex color */
  664.                         /* ensure no inverted roundrect is produced... */
  665.                         if( double_data[0] > double_data[2] ){double_data[4] = double_data[0];double_data[0] = double_data[2];double_data[2] = double_data[4];}
  666.                         if( double_data[3] > double_data[1] ){double_data[4] = double_data[1];double_data[1] = double_data[3];double_data[3] = double_data[4];}
  667.                         decimals = find_number_of_digits(precision);
  668.                         fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,6,[%.*f,%.*f],[%.*f,%.*f],[%d,%d],[%d,%d],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[0],decimals,double_data[2],decimals,double_data[1],decimals,double_data[3],int_data[0],int_data[0],int_data[0],int_data[0],line_width,stroke_color,stroke_opacity,stroke_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt);
  669.                         click_cnt++;reset();
  670.                     break;
  671.                 }
  672.             }
  673.             break;
  674.         case RECT:
  675.         /*
  676.         @ rect x1,y1,x2,y2,color
  677.         @ use command 'rect x1,y1,x2,y2,color' for a filled rectangle
  678.         @ use command/keyword  'filled' before command 'rect x1,y1,x2,y2,color'
  679.         @ use command 'fillcolor color' before 'frect' to set the fill colour.
  680.         @ may be set draggable / onclick
  681.         */
  682.             for(i=0;i<5;i++){
  683.                 switch(i){
  684.                     case 0:double_data[0] = get_real(infile,0);break; /* x-values */
  685.                     case 1:double_data[1] = get_real(infile,0);break; /* y-values */
  686.                     case 2:double_data[2] = get_real(infile,0);break; /* x-values */
  687.                     case 3:double_data[3] = get_real(infile,0);break; /* y-values */
  688.                     case 4:stroke_color = get_color(infile,1);/* name or hex color */
  689.                         decimals = find_number_of_digits(precision);
  690.                         fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,1,[%.*f,%.*f,%.*f,%.*f],[%.*f,%.*f,%.*f,%.*f],[%d],[%d],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[0],decimals,double_data[2],decimals,double_data[2],decimals,double_data[0],decimals,double_data[1],decimals,double_data[1],decimals,double_data[3],decimals,double_data[3],line_width,line_width,line_width,stroke_color,stroke_opacity,stroke_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt);
  691.                         click_cnt++;reset();
  692.                         break;
  693.                 }
  694.             }
  695.             break;
  696.         case POLYLINE:
  697.         /*
  698.         @ polyline color,x1,y1,x2,y2...x_n,y_n
  699.         @ may be set draggable / onclick
  700.         */
  701.             stroke_color=get_color(infile,0); /* how nice: now the color comes first...*/
  702.             i=0;
  703.             c=0;
  704.             while( ! done ){     /* get next item until EOL*/
  705.                 if(i > MAX_INT - 1){canvas_error("to many points in argument: repeat command multiple times to fit");}
  706.                 for( c = 0 ; c < 2; c++){
  707.                     if(c == 0 ){
  708.                         double_data[i] = get_real(infile,0);
  709.                         i++;
  710.                     }
  711.                     else
  712.                     {
  713.                         double_data[i] = get_real(infile,1);
  714.                         i++;
  715.                     }
  716.                 }
  717.             }
  718.             /* draw path : not closed & not filled */
  719.             decimals = find_number_of_digits(precision);
  720.             fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,4,%s,[30],[30],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d));\n",click_cnt,onclick,drag_type,double_xy2js_array(double_data,i,decimals),line_width,stroke_color,stroke_opacity,stroke_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt);
  721.             click_cnt++;reset();
  722.             break;
  723.         case POLY:
  724.         /*
  725.         @ poly color,x1,y1,x2,y2...x_n,y_n
  726.         @ draw closed polygon
  727.         @ use command 'fpoly' to fill it, use command 'fillcolor color' to set the fill color
  728.         @ may be set draggable / onclick
  729.         */
  730.             stroke_color=get_color(infile,0); /* how nice: now the color comes first...*/
  731.             i=0;
  732.             c=0;
  733.             while( ! done ){     /* get next item until EOL*/
  734.                 if(i > MAX_INT - 1){canvas_error("to many points in argument: repeat command multiple times to fit");}
  735.                 for( c = 0 ; c < 2; c++){
  736.                     if(c == 0 ){
  737.                         double_data[i] = get_real(infile,0);
  738.                         i++;
  739.                     }
  740.                     else
  741.                     {
  742.                         double_data[i] = get_real(infile,1);
  743.                         i++;
  744.                     }
  745.                 }
  746.             }
  747.             /* draw path :  closed & optional filled */
  748.                 decimals = find_number_of_digits(precision);
  749.                 fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,5,%s,[30],[30],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d));\n",click_cnt,onclick,drag_type,double_xy2js_array(double_data,i,decimals),line_width,stroke_color,stroke_opacity,stroke_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt);
  750.                 click_cnt++;reset();
  751.             break;
  752.         case ARC:
  753.         /*
  754.          @ arc xc,yc,width,height,start_angle,end_angle,color
  755.          @ can not be set "onclick" or "drag xy"
  756.          @ attention: width == height == radius in pixels
  757.          @ will not zoom in or zoom out (because radius is given in pixels an not in x/y-system !). Panning will work
  758.          @ use command 'angle' for scalable angle
  759.         */
  760.             for(i=0;i<7;i++){
  761.                 switch(i){
  762.                     case 0:double_data[0] = get_real(infile,0);break; /* x-values */
  763.                     case 1:double_data[1] = get_real(infile,0);break; /* y-values */
  764.                     case 2:int_data[0] = (int)(get_real(infile,0));break; /* width in pixels ! */
  765.                     case 3:int_data[1] = (int)(get_real(infile,0));break; /* height in pixels ! */
  766.                     case 4:double_data[2] = get_real(infile,0);break; /* start angle in degrees */
  767.                     case 5:double_data[3] = get_real(infile,0);break; /* end angle in degrees */
  768.                     case 6:stroke_color = get_color(infile,1);/* name or hex color */
  769.                     /* in Shape library:
  770.                         x[0] = x[1] = xc
  771.                         y[0] = y[1] = yc
  772.                         w[0] = w[1] = radius = width = height
  773.                         h[0] = start_angle ; h[1] = end_engle
  774.                     */
  775.                         decimals = find_number_of_digits(precision);
  776.                         fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,12,[%.*f,%.*f],[%.*f,%.*f],[%d,%d],[%.*f,%.*f],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[0],decimals,double_data[0],decimals,double_data[1],decimals,double_data[1],int_data[0],int_data[0],decimals,double_data[2],decimals,double_data[3],line_width,stroke_color,stroke_opacity,fill_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt);
  777.                         reset();
  778.                     break;
  779.                 }
  780.             }
  781.             break;
  782.         case ANGLE:
  783.         /*
  784.          @ angle xc,yc,width,start_angle,end_angle,color
  785.          @ width is in x-range
  786.          @ will zoom in/out
  787.          @ if size is controlled by command 'slider' use radians to set limits of slider.
  788.         */
  789.             for(i=0;i<7;i++){
  790.                 switch(i){
  791.                     case 0:double_data[0] = get_real(infile,0);break; /* x-values */
  792.                     case 1:double_data[1] = get_real(infile,0);break; /* y-values */
  793.                     case 2:double_data[2] = get_real(infile,0);break; /* width in pixels ! */
  794.                     case 3:double_data[3] = get_real(infile,0);break; /* start angle in degrees */
  795.                     case 4:double_data[4] = get_real(infile,0);break; /* end angle in degrees */
  796.                     case 5:stroke_color = get_color(infile,1);/* name or hex color */
  797.                         decimals = find_number_of_digits(precision);
  798.                         fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,17,[%.*f,%.*f],[%.*f,%.*f],[%.*f,%.*f],[%.*f,%.*f],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[0],decimals,double_data[0],decimals,double_data[1],decimals,double_data[1],decimals,double_data[2],decimals,double_data[2],decimals,double_data[3],decimals,double_data[4],line_width,stroke_color,stroke_opacity,fill_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt);
  799.                         reset();
  800.                     break;
  801.                 }
  802.             }
  803.             break;
  804.  
  805.         case ELLIPSE:
  806.         /*
  807.         @ ellipse xc,yc,radius_x,radius_y,color
  808.         @ a ellipse with center xc/yc in x/y-range
  809.         @ radius_x and radius_y are in pixels
  810.         @ may be set draggable / onclick
  811.         @ will shrink / expand on zoom out / zoom in
  812.         */
  813.             for(i=0;i<5;i++){
  814.                 switch(i){
  815.                     case 0:double_data[0] = get_real(infile,0);break; /* x-values */
  816.                     case 1:double_data[1] = get_real(infile,0);break; /* y-values */
  817.                     case 2:double_data[2] = get_real(infile,0);break; /* rx -> px  */
  818.                     case 3:double_data[3] = get_real(infile,0);break; /* ry -> px  */
  819.                     case 4:stroke_color = get_color(infile,1);/* name or hex color */
  820.                         decimals = find_number_of_digits(precision);
  821.                         fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,3,[%.*f],[%.*f],[%.*f],[%.*f],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[0],decimals,double_data[1],decimals,double_data[2],decimals,double_data[3],line_width,stroke_color,stroke_opacity,stroke_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt);
  822.                         click_cnt++;reset();
  823.                     break;
  824.                 }
  825.             }
  826.             break;
  827.         case DASHTYPE:
  828.         /*
  829.         @ dashtype int ,int
  830.         @ When dashed is set, the objects will be drawn with this dashtyp
  831.         @ default value "dashtype 2,2"
  832.         */
  833.             for(i=0;i<2;i++){
  834.                 switch(i){
  835.                     case 0 : dashtype[0] = (int) line_width*( get_real(infile,0)) ; break;
  836.                     case 1 : dashtype[1] = (int) line_width*( get_real(infile,1)) ; break;
  837.                 }
  838.             }
  839.         break;
  840.         case CIRCLE:
  841.         /*
  842.         @ circle xc,yc,width (2*r in pixels),color
  843.         @ use command 'fcircle xc,yc,d,color' or command 'filled' for a filled disk
  844.         @ use command 'fillcolor color' to set the fillcolor
  845.         @ may be set draggable / onclick
  846.         @ will shrink / expand on zoom out / zoom in
  847.         */
  848.             for(i=0;i<4;i++){
  849.                 switch(i){
  850.                     case 0: double_data[0] = get_real(infile,0);break; /* x */
  851.                     case 1: double_data[1] = get_real(infile,0);break; /* y */
  852.                     case 2: double_data[2] = px2x((get_real(infile,0))/2) - px2x(0);break; /* for zoom in/out : radius in 'dx' xrange*/
  853.                     case 3: stroke_color = get_color(infile,1);/* name or hex color */
  854.                         decimals = find_number_of_digits(precision);
  855.                         fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,13,[%.*f],[%.*f],[%.3f],[%.3f],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[0],decimals,double_data[1],double_data[2],double_data[2],line_width,stroke_color,stroke_opacity,stroke_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt);
  856.                         click_cnt++;reset();
  857.                         break;
  858.                     default : break;
  859.                 }
  860.             }
  861.             break;
  862.  
  863.         case CIRCLES:
  864.         /*
  865.         @ circles color,xc1,yc1,r1,xc2,yc2,r2...xc_n,yc_n,r_n
  866.         @ Attention r = radius in x-range (!)
  867.         @ use command 'fillcolor color' to set the fillcolor
  868.         @ may be set draggable / onclick (individually)
  869.         @ will shrink / expand on zoom out / zoom in
  870.         */
  871.             stroke_color=get_color(infile,0); /* how nice: now the color comes first...*/
  872.             fill_color = stroke_color;
  873.             i=1;
  874.             while( ! done ){     /* get next item until EOL*/
  875.                 if(i > MAX_INT - 1){canvas_error("to many points in argument: repeat command multiple times to fit");}
  876.                 switch (i%3){
  877.                  case 1:double_data[i-1] = get_real(infile,0);break; /* x */
  878.                  case 2:double_data[i-1] = get_real(infile,0);break; /* y */
  879.                  case 0:double_data[i-1] = get_real(infile,1);break; /* r */
  880.                 }
  881.                 i++;
  882.             }
  883.             decimals = find_number_of_digits(precision);
  884.             for(c = 0 ; c < i-1 ; c = c+3){
  885.                 fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,13,[%.*f],[%.*f],[%.3f],[%.3f],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[c],decimals,double_data[c+1],double_data[c+2],double_data[c+2],line_width,stroke_color,stroke_opacity,stroke_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt);
  886.                 click_cnt++;
  887.             }
  888.             reset();
  889.             break;
  890.         case RAYS:
  891.         /*
  892.          @ rays color,xc,yc,x1,y1,x2,y2,x3,y3...x_n,y_n
  893.          @ draw rays in color 'color' and center (xc:yc)
  894.          @ may be set draggable or onclick (every individual ray)
  895.         */
  896.             stroke_color=get_color(infile,0);
  897.             fill_color = stroke_color;
  898.             double_data[0] = get_real(infile,0);/* xc */
  899.             double_data[1] = get_real(infile,0);/* yc */
  900.             i=2;
  901.             while( ! done ){     /* get next item until EOL*/
  902.                 if(i > MAX_INT - 1){canvas_error("in command rays to many points / rays in argument: repeat command multiple times to fit");}
  903.                 if(i%2 == 0 ){
  904.                     double_data[i] = get_real(infile,0); /* x */
  905.                 }
  906.                 else
  907.                 {
  908.                     double_data[i] = get_real(infile,1); /* y */
  909.                 }
  910.             fprintf(js_include_file,"/* double_data[%d] = %f */\n",i,double_data[i]);
  911.                 i++;
  912.             }
  913.  
  914.             if( i%2 != 0 ){canvas_error("in command rays: unpaired x or y value");}
  915.             decimals = find_number_of_digits(precision);
  916.             for(c=2; c<i;c = c+2){
  917.                 click_cnt++;
  918.                 fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,4,[%.*f,%.*f],[%.*f,%.*f],[30,30],[30,30],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[0],decimals,double_data[c],decimals,double_data[1],decimals,double_data[c+1],line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,0,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt);
  919.             }
  920.             reset();
  921.             break;
  922.  
  923.         case ARROWS:
  924.         /*
  925.         @ arrows color,head (px),x1,y1,x2,y2...x_n,y_n
  926.         @ draw single headed arrows / vectors from (x1:y1) to (x2:y2) ... (x3:y3) to (x4:y4) etc ... in color 'color'
  927.         @ use command 'linewidth int' to adjust thickness of the arrow
  928.         @ may be set draggable / onclick individually
  929.         */
  930.             stroke_color=get_color(infile,0); /* how nice: now the color comes first...*/
  931.             fill_color = stroke_color;
  932.             arrow_head = (int) get_real(infile,0);/* h */
  933.             i=0;
  934.             while( ! done ){     /* get next item until EOL*/
  935.                 if(i > MAX_INT - 1){canvas_error("to many points in argument: repeat command multiple times to fit");}
  936.                 if(i%2 == 0 ){
  937.                     double_data[i] = get_real(infile,0); /* x */
  938.                 }
  939.                 else
  940.                 {
  941.                     double_data[i] = get_real(infile,1); /* y */
  942.                 }
  943.                 i++;
  944.             }
  945.             decimals = find_number_of_digits(precision);
  946.             for(c = 0 ; c < i-1 ; c = c+4){
  947.                 fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,8,[%.*f,%.*f],[%.*f,%.*f],[%d,%d],[%d,%d],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[c],decimals,double_data[c+2],decimals,double_data[c+1],decimals,double_data[c+3],arrow_head,arrow_head,arrow_head,arrow_head,line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,0,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt);
  948.                 click_cnt++;
  949.             }
  950.             reset();
  951.             break;
  952.         case ARROW:
  953.         /*
  954.         @ arrow x1,y1,x2,y2,h,color
  955.         @ draw a single headed arrow/vector from (x1:y1) to (x2:y2)<br />with arrowhead size h in px and in color 'color'
  956.         @ use command 'linewidth int' to adjust thickness of the arrow
  957.         @ may be set draggable / onclick
  958.         */
  959.             for(i=0;i<6;i++){
  960.                 switch(i){
  961.                     case 0: double_data[0] = get_real(infile,0);break; /* x */
  962.                     case 1: double_data[1] = get_real(infile,0);break; /* y */
  963.                     case 2: double_data[2] = get_real(infile,0);break; /* x */
  964.                     case 3: double_data[3] = get_real(infile,0);break; /* y */
  965.                     case 4: arrow_head = (int) get_real(infile,0);break;/* h */
  966.                     case 5: stroke_color = get_color(infile,1);/* name or hex color */
  967.                         decimals = find_number_of_digits(precision);
  968.                         fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,8,[%.*f,%.*f],[%.*f,%.*f],[%d,%d],[%d,%d],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[0],decimals,double_data[2],decimals,double_data[1],decimals,double_data[3],arrow_head,arrow_head,arrow_head,arrow_head,line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,0,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt);
  969.                         click_cnt++;
  970.                         reset();
  971.                         break;
  972.                 }
  973.             }
  974.             break;
  975.         case ARROW2:
  976.         /*
  977.         @ arrow2 x1,y1,x2,y2,h,color
  978.         @ draw a double headed arrow/vector from (x1:y1) to (x2:y2)<br />with arrowhead size h in px and  in color 'color'
  979.         @ use command 'arrowhead int' to adjust the arrow head size
  980.         @ use command 'linewidth int' to adjust thickness of the arrow
  981.         @ may be set draggable / onclick
  982.         */
  983.             for(i=0;i<6;i++){
  984.                 switch(i){
  985.                     case 0: double_data[0] = get_real(infile,0);break; /* x */
  986.                     case 1: double_data[1] = get_real(infile,0);break; /* y */
  987.                     case 2: double_data[2] = get_real(infile,0);break; /* x */
  988.                     case 3: double_data[3] = get_real(infile,0);break; /* y */
  989.                     case 4: arrow_head = (int) get_real(infile,0);break;/* h */
  990.                     case 5: stroke_color = get_color(infile,1);/* name or hex color */
  991.                         decimals = find_number_of_digits(precision);
  992.                         fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,10,[%.*f,%.*f],[%.*f,%.*f],[%d,%d],[%d,%d],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[0],decimals,double_data[2],decimals,double_data[1],decimals,double_data[3],arrow_head,arrow_head,arrow_head,arrow_head,line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,0,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt);
  993.                         click_cnt++;reset();
  994.                         break;
  995.                 }
  996.             }
  997.             break;
  998.         case ARROWS2:
  999.         /*
  1000.         @ arrows2 color,head (px),x1,y1,x2,y2...x_n,y_n
  1001.         @ draw double headed arrows / vectors from (x1:y1) to (x2:y2) ... (x3:y3) to (x4:y4) etc ... in color 'color'
  1002.         @ use command 'linewidth int' to adjust thickness of the arrows
  1003.         @ may be set draggable / onclick individually
  1004.         */
  1005.             stroke_color=get_color(infile,0); /* how nice: now the color comes first...*/
  1006.             fill_color = stroke_color;
  1007.             arrow_head = (int) get_real(infile,0);/* h */
  1008.             i=0;
  1009.             while( ! done ){     /* get next item until EOL*/
  1010.                 if(i > MAX_INT - 1){canvas_error("to many points in argument: repeat command multiple times to fit");}
  1011.                 if(i%2 == 0 ){
  1012.                     double_data[i] = get_real(infile,0); /* x */
  1013.                 }
  1014.                 else
  1015.                 {
  1016.                     double_data[i] = get_real(infile,1); /* y */
  1017.                 }
  1018.                 i++;
  1019.             }
  1020.             decimals = find_number_of_digits(precision);
  1021.             for(c = 0 ; c < i-1 ; c = c+4){
  1022.                 fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,10,[%.*f,%.*f],[%.*f,%.*f],[%d,%d],[%d,%d],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[c],decimals,double_data[c+2],decimals,double_data[c+1],decimals,double_data[c+3],arrow_head,arrow_head,arrow_head,arrow_head,line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,0,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt);
  1023.                 click_cnt++;
  1024.             }
  1025.             reset();
  1026.             break;
  1027.         case PARALLEL:
  1028.         /*
  1029.          @ parallel x1,y1,x2,y2,dx,dy,n,[colorname or #hexcolor]
  1030.          @ can not be set "onclick" or "drag xy"
  1031.         */
  1032.             for( i = 0;i < 8; i++ ){
  1033.                 switch(i){
  1034.                     case 0: double_data[0] = get_real(infile,0);break; /* x1-values  -> x-pixels*/
  1035.                     case 1: double_data[1] = get_real(infile,0);break; /* y1-values  -> y-pixels*/
  1036.                     case 2: double_data[2] = get_real(infile,0);break; /* x2-values  -> x-pixels*/
  1037.                     case 3: double_data[3] = get_real(infile,0);break; /* y2-values  -> y-pixels*/
  1038.                     case 4: double_data[4] = xmin + get_real(infile,0);break; /* xv -> x-pixels */
  1039.                     case 5: double_data[5] = ymax + get_real(infile,0);break; /* yv -> y-pixels */
  1040.                     case 6: int_data[0] = (int) (get_real(infile,0));break; /* n  */
  1041.                     case 7: stroke_color=get_color(infile,1);/* name or hex color */
  1042.                     decimals = find_number_of_digits(precision);
  1043.                     fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,11,[%.*f,%.*f,%.*f],[%.*f,%.*f,%.*f],[%d,%d,%d],[%d,%d,%d],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[0],decimals,double_data[2],decimals,double_data[4],decimals,double_data[1],decimals,double_data[3],decimals,double_data[5],int_data[0],int_data[0],int_data[0],int_data[0],int_data[0],int_data[0],line_width,stroke_color,stroke_opacity,fill_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt);
  1044.                     click_cnt++;reset();
  1045.                     break;
  1046.                     default: break;
  1047.                 }
  1048.             }
  1049.             break;
  1050.         case TRIANGLE:
  1051.         /*
  1052.          @triangle x1,y1,x2,y2,x3,y3,color
  1053.          @may be set draggable / onclic
  1054.         */
  1055.             for(i=0;i<7;i++){
  1056.                 switch(i){
  1057.                     case 0: double_data[0] = get_real(infile,0);break; /* x */
  1058.                     case 1: double_data[1] = get_real(infile,0);break; /* y */
  1059.                     case 2: double_data[2] = get_real(infile,0);break; /* x */
  1060.                     case 3: double_data[3] = get_real(infile,0);break; /* y */
  1061.                     case 4: double_data[4] = get_real(infile,0);break; /* x */
  1062.                     case 5: double_data[5] = get_real(infile,0);break; /* y */
  1063.                     case 6: stroke_color = get_color(infile,1);/* name or hex color */
  1064.                         decimals = find_number_of_digits(precision);
  1065.                         fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,5,%s,[30],[30],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d));\n",click_cnt,onclick,drag_type,double_xy2js_array(double_data,6,decimals),line_width,stroke_color,stroke_opacity,stroke_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt);
  1066.                         click_cnt++;reset();
  1067.                         break;
  1068.                     default: break;
  1069.                 }
  1070.             }
  1071.             break;
  1072.         case LATTICE:
  1073.         /*
  1074.          @lattice x0,y0,xv1,yv1,xv2,yv2,n1,n2,color
  1075.          @can not be set "onclick" or "drag xy"
  1076.         */
  1077.             if( js_function[DRAW_LATTICE] != 1 ){ js_function[DRAW_LATTICE] = 1;}
  1078.             for( i = 0; i<9; i++){
  1079.                 switch(i){
  1080.                     case 0: int_data[0] = x2px(get_real(infile,0));break; /* x0-values  -> x-pixels*/
  1081.                     case 1: int_data[1] = y2px(get_real(infile,0));break; /* y0-values  -> y-pixels*/
  1082.                     case 2: int_data[2] = (int) (get_real(infile,0));break; /* x1-values  -> x-pixels*/
  1083.                     case 3: int_data[3] = (int) -1*(get_real(infile,0));break; /* y1-values  -> y-pixels*/
  1084.                     case 4: int_data[4] = (int) (get_real(infile,0));break; /* x2-values  -> x-pixels*/
  1085.                     case 5: int_data[5] = (int) -1*(get_real(infile,0));break; /* y2-values  -> y-pixels*/
  1086.                     case 6: int_data[6] = (int) (get_real(infile,0));break; /* n1-values */
  1087.                     case 7: int_data[7] = (int) (get_real(infile,0));break; /* n2-values */
  1088.                     case 8: stroke_color=get_color(infile,1);
  1089.                         decimals = find_number_of_digits(precision);
  1090.                         string_length = snprintf(NULL,0,"draw_lattice(%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,\"%s\",%.2f,\"%s\",%.2f,%d,%.2f,%d,%s);",STATIC_CANVAS,line_width,int_data[0],int_data[1],int_data[2],int_data[3],int_data[4],int_data[5],int_data[6],int_data[7],fill_color,fill_opacity,stroke_color,stroke_opacity,use_rotate,angle,use_affine,affine_matrix);
  1091.                         check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  1092.                         snprintf(tmp_buffer,string_length,"draw_lattice(%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,\"%s\",%.2f,\"%s\",%.2f,%d,%.2f,%d,%s);",STATIC_CANVAS,line_width,int_data[0],int_data[1],int_data[2],int_data[3],int_data[4],int_data[5],int_data[6],int_data[7],fill_color,fill_opacity,stroke_color,stroke_opacity,use_rotate,angle,use_affine,affine_matrix);
  1093.                         add_to_buffer(tmp_buffer);
  1094.                     break;
  1095.                     default:break;
  1096.                 }
  1097.             }
  1098.             reset();
  1099.             break;
  1100.         case SNAPTOGRID:
  1101.         /*
  1102.          @ snaptogrid
  1103.          @ keyword (no arguments rewquired) needs to be defined before command 'userdraw' and after command 'grid'
  1104.          @ in case of userdraw the drawn points will snap to xmajor / ymajor grid
  1105.          @ if xminor / yminor is defined, the drawing will snap to xminor and yminor<br />use only even dividers in x/y-minor...for example<br />snaptogrid<br />axis<br />grid 2,1,grey,4,4,7,red<br /> will snap on x=0, x=0.5, x=1, x=1.5 ....<br /> will snap on y=0, y=0.25 y=0.5 y=0.75 ...<br />
  1106.         */
  1107.         fprintf(js_include_file,"\nx_use_snap_to_grid = 1;y_use_snap_to_grid = 1;");
  1108.         break;
  1109.         case XSNAPTOGRID:
  1110.         /*
  1111.          @ xsnaptogrid
  1112.          @ keyword (no arguments rewquired) needs to be defined before command 'userdraw' and after command 'grid'
  1113.          @ in case of userdraw the drawn points will snap to xmajor grid
  1114.          @ if xminor is defined, the drawing will snap to xminor <br />use only even dividers in x-minor...for example<br />xsnaptogrid<br />axis<br />grid 2,1,grey,4,4,7,red<br /> will snap on x=0, x=0.5, x=1, x=1.5 ....<br /> will snap on y=0, y=0.25 y=0.5 y=0.75 ...<br />
  1115.         */
  1116.         fprintf(js_include_file,"\nx_use_snap_to_grid = 1;y_use_snap_to_grid = 0;");
  1117.         break;
  1118.         case YSNAPTOGRID:
  1119.         /*
  1120.          @ ysnaptogrid
  1121.          @ keyword (no arguments rewquired) needs to be defined before command 'userdraw' and after command 'grid'
  1122.          @ in case of userdraw the drawn points will snap to ymajor grid
  1123.          @ if yminor is defined, the drawing will snap to yminor <br />use only even dividers in y-minor...for example<br />ysnaptogrid<br />axis<br />grid 2,1,grey,4,4,7,red<br /> will snap on x=0, x=0.5, x=1, x=1.5 ....<br /> will snap on y=0, y=0.25 y=0.5 y=0.75 ...<br />
  1124.         */
  1125.         fprintf(js_include_file,"\nx_use_snap_to_grid = 0;y_use_snap_to_grid = 1;");
  1126.         break;
  1127.         case USERINPUT:
  1128.         /*
  1129.          @ userinput function | textarea | inputfield
  1130.          @ alternative command + argment to keywords "userinput_function","userinput_textarea" and "userinput_xy"
  1131.          @ textarea and inputfield are only usable in combination with some 'userdraw draw_ type'
  1132.          @ function may be used any time (e.g. without userdraw)
  1133.          @ use command "functionlabel some_string" to define the inputfield text : default value "f(x)="
  1134.          @ use command 'strokecolor some_color' to adjust the plot / functionlabel color
  1135.          @ the userinput for the function will be corrected by a simple 'rawmath' implementation...
  1136.         */
  1137.             temp = get_string_argument(infile,1);
  1138.             if(strstr(temp,"function") != 0  || strstr(temp,"curve") != 0  || strstr(temp,"plot") != 0 ){
  1139.              if( js_function[DRAW_JSFUNCTION] != 1 ){
  1140.               add_rawmath(js_include_file);/* add simple rawmath routine to correct user input of function */
  1141.               js_function[DRAW_JSFUNCTION] = 1;
  1142.               if(reply_format == 0){reply_format = 24;}/* read canvas_input values */
  1143.               add_input_jsfunction(js_include_file,canvas_root_id,input_style,function_label,input_cnt,stroke_color,stroke_opacity,line_width,use_dashed,dashtype[0],dashtype[1]);
  1144.               input_cnt++;
  1145.              }
  1146.              else
  1147.              {
  1148.               /* no need to add DRAW_JSFUNCTION , just call it with the parameters */
  1149.               fprintf(js_include_file,"add_input_jsfunction(%d,\"%s\",\"%s\",%d,\"%s\",\"%.2f\",%d,%d,%d);\n",input_cnt,input_style,function_label,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
  1150.               input_cnt++;
  1151.              }
  1152.              if( use_js_math == FALSE){/* add this stuff only once...*/
  1153.               add_to_js_math(js_include_file);
  1154.               use_js_math = TRUE;
  1155.              }
  1156.              if( use_js_plot == FALSE){
  1157.               use_js_plot = TRUE;
  1158.               add_jsplot(js_include_file,canvas_root_id); /* this plots the function on JSPLOT_CANVAS */
  1159.              }
  1160.             }
  1161.             else
  1162.             {
  1163.              if(strstr(temp,"inputfield") != 0 ){
  1164.               if( use_input_xy != 0 ){canvas_error("userinput_xy can not be combined with usertextarea_xy command");}
  1165.               if( use_safe_eval == FALSE){use_safe_eval = TRUE;add_safe_eval(js_include_file);} /* just once */
  1166.               use_input_xy = 1;
  1167.              }
  1168.              else
  1169.              {
  1170.               if(strstr(temp,"textarea") != 0 ){
  1171.                if( use_input_xy != 0 ){canvas_error("usertextarea_xy can not be combined with userinput_xy command");}
  1172.                if( use_safe_eval == FALSE){use_safe_eval = TRUE;add_safe_eval(js_include_file);} /* just once */
  1173.                use_input_xy = 2;
  1174.               }
  1175.               else
  1176.               {
  1177.                 canvas_error("userinput argument may be \"function,inputfield,textarea\"");
  1178.               }
  1179.              }
  1180.             }
  1181.             break;
  1182.         case USERTEXTAREA_XY:
  1183.         /*
  1184.         @ usertextarea_xy
  1185.         @ keyword
  1186.         @ to be used in combination with command "userdraw object_type,color" wherein object_type is only segment / polyline for the time being...
  1187.         @ if set two textareas are added to the document<br />(one for x-values , one for y-values)
  1188.         @ the student may use this as correction for (x:y) on a drawing (or to draw without mouse, using just the coordinates)
  1189.         @ user drawings will not zoom on zooming (or pan on panning)
  1190.         */
  1191.             if( use_input_xy != 0 ){canvas_error("usertextarea_xy can not be combined with userinput_xy command");}
  1192.             if( use_safe_eval == FALSE){use_safe_eval = TRUE;add_safe_eval(js_include_file);} /* just once */
  1193.             use_input_xy = 2;
  1194.             break;
  1195.         case USERINPUT_XY:
  1196.         /*
  1197.         @ userinput_xy
  1198.         @ keyword
  1199.         @ to be used in combination with command "userdraw object_type,color"
  1200.         @ if set two (or three) input fields are added to the document<br />(one for x-values , one for y-values and in case of drawing circle one for radius-values)
  1201.         @ the student may use this as correction for (x:y) on a drawing (or to draw without mouse, using just the coordinates)
  1202.         @ math input is allowed (e.g something like: 1+3,2*6,1/3,sqrt(3), sin(pi/4),10^-2,log(2)...)<br />eval function is 'protected' against code injection.
  1203.         @ can not be combined with command "intooltip tiptext" <br />note: the 'tooltip div element' is used for placing inputfields
  1204.         @ user drawings will not zoom on zooming (or pan on panning)
  1205.         */
  1206.             /* add simple eval check to avoid code injection with unprotected eval(string) */
  1207.             if( use_input_xy != 0 ){canvas_error("userinput_xy can not be combined with usertextarea_xy command");}
  1208.             if( use_safe_eval == FALSE){use_safe_eval = TRUE;add_safe_eval(js_include_file);} /* just once */
  1209.             use_input_xy = 1;
  1210.             break;
  1211.         case FUNCTION_LABEL:
  1212.         /*
  1213.          @ functionlabel 'some string'
  1214.          @ default value "f(x)="
  1215.          @ no mathml allowed (just ascii string)
  1216.          @ if needed, use before every command 'userinput function | inputfield | textarea'
  1217.         */
  1218.             function_label = get_string_argument(infile,1);
  1219.             break;
  1220.         case USERINPUT_FUNCTION:
  1221.         /*
  1222.         @ userinput_function
  1223.         @ keyword
  1224.         @ if set , a inputfield will be added to the page
  1225.         @ repeat keyword for more function input fields
  1226.         @ the userinput value will be plotted in the canvas
  1227.         @ this value may be read with 'read_canvas()'. <br />for do it yourself js-scripters : If this is the first inputfield in the script, it's id is canvas_input0
  1228.         @ use before this command 'userinput_function',<br />commands like 'inputstyle some_css' , 'xlabel some_description' , 'opacity int,int' , 'linewidth int' , 'dashed' and 'dashtype int,int' to modify
  1229.         @ incompatible with command 'intooltip link_text_or_image' : it uses the tooltip div for adding the inputfield
  1230.         */
  1231.             if( js_function[DRAW_JSFUNCTION] != 1 ){
  1232.              js_function[DRAW_JSFUNCTION] = 1;
  1233.              add_rawmath(js_include_file);
  1234.              if(reply_format == 0){reply_format = 24;}/* read canvas_input values */
  1235.              add_input_jsfunction(js_include_file,canvas_root_id,input_style,function_label,input_cnt,stroke_color,stroke_opacity,line_width,use_dashed,dashtype[0],dashtype[1]);
  1236.              input_cnt++;
  1237.             }
  1238.             else
  1239.             {
  1240.               /* no need to add DRAW_JSFUNCTION , just call it with the parameters */
  1241.              fprintf(js_include_file,"add_input_jsfunction(%d,\"%s\",\"%s\",%d,\"%s\",\"%.2f\",%d,%d,%d);\n",input_cnt,input_style,function_label,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
  1242.              input_cnt++;
  1243.             }
  1244.             if( use_js_math == FALSE){/* add this stuff only once...*/
  1245.              add_to_js_math(js_include_file);
  1246.              use_js_math = TRUE;
  1247.             }
  1248.             if( use_js_plot == FALSE){
  1249.              use_js_plot = TRUE;
  1250.              add_jsplot(js_include_file,canvas_root_id); /* this plots the function on JSPLOT_CANVAS */
  1251.             }
  1252.             break;
  1253.         case USERDRAW:
  1254.         /*
  1255.         @ userdraw object_type,color
  1256.         @ implemented object_type: <ul><li>point</li><li>points</li><li>crosshair</li><li>crosshairs</li><li>line</li><li>lines</li><li>vline</li><li>vlines</li><li>hline</li><li>hlines</li><li>demiline</li><li>demilines</li><li>segment</li><li>segments</li><li>polyline</li><li>circle</li><li>circles</li><li>arrow</li><li>arrow2 (double arrow)</li><li>arrows</li><li>arrows2 (double arrows)</li><li>triangle</li><li>polygon</li><li>poly[3-9]</li><li>rect</li><li>roundrect</li><li>rects</li><li>roundrects</li><li>freehandline</li><li>freehandlines</li><li>path</li><li>paths</li><li>text</li><li>arc</li><li>arcs</li><li>input<br/>place a single inputfield on 'canvas'<br />use commands 'inputstyle' for css styling: use command 'linewidth' for adjusting the input field size (default 1)</li><li>inputs<br/>place multiple inputfield : placing inputfields on top of each other is not possible</li></ul>
  1257.         @ note: mouselisteners are only active if "$status != done " (eg only drawing in an active/non-finished exercise) <br /> to overrule use command/keyword "status" (no arguments required)
  1258.         @ note: object_type text: Any string or multiple strings may be placed anywhere on the canvas.<br />while typing the background of every typed char will be lightblue..."backspace / delete / esc" will remove typed text.<br />You will need to hit "enter" to add the text to the array "userdraw_txt()" : lightblue background will disappear<br />Placing the cursor somewhere on a typed text and hitting "delete/backspace/esc" , a confirm will popup asking to delete the selected text.This text will be removed from the "userdraw_txt()" answer array.<br />Use commands 'fontsize' and 'fontfamily' to control the text appearance
  1259.         @ note: object_type polygone: Will be finished (the object is closed) when clicked on the first point of the polygone again.
  1260.         @ note: all objects will be removed -after a javascript confirm box- when clicked on an object point with middle or right mouse butten (e.g. event.which != 1 : all buttons but left)
  1261.         @ use command "filled", "opacity int,int"  and "fillcolor color" to trigger coloured filling of fillable objects
  1262.         @ use command "dashed" and/or "dashtype int,int" to trigger dashing
  1263.         @ use command "replyformat int" to control / adjust output formatting of javascript function read_canvas();
  1264.         @ may be combined with onclick or drag xy  of other components of flyscript objects (although not very usefull...)
  1265.         @ may be combined with keyword 'userinput_xy' or
  1266.         @ note: when zooming / panning after a drawing, the drawing will NOT be zoomed / panned...this is a "design" flaw and not a feature <br />To avoid trouble do not use zooming / panning together width userdraw.!
  1267.         */
  1268.             if( use_userdraw == TRUE ){ /* only one object type may be drawn*/
  1269.                 canvas_error("Only one userdraw primitive may be used: read documentation !!");
  1270.             }
  1271.             reply_precision = precision;
  1272.             use_userdraw = TRUE;
  1273.             fprintf(js_include_file,"\n<!-- begin userdraw mouse events -->\nuserdraw_x = new Array();userdraw_y = new Array();userdraw_radius = new Array();var xy_cnt=0;var canvas_userdraw = create_canvas%d(%d,xsize,ysize);var context_userdraw = canvas_userdraw.getContext(\"2d\");var use_dashed = %d;if(use_dashed == 1){if( context_userdraw.setLineDash ){context_userdraw.setLineDash([%d,%d]);}else{if(context_userdraw.mozDash){context_userdraw.mozDash = [%d,%d];};};};if(wims_status != \"done\"){canvas_div.addEventListener(\"mousedown\",user_draw,false);canvas_div.addEventListener(\"mousemove\",user_drag,false);canvas_div.addEventListener(\"touchstart\",user_draw,false);canvas_div.addEventListener(\"touchmove\",user_drag,false);}\n<!-- end userdraw mouse events -->",canvas_root_id,DRAW_CANVAS,use_dashed,dashtype[0],dashtype[1],dashtype[0],dashtype[1]);
  1274.             draw_type = get_string_argument(infile,0);
  1275.             stroke_color = get_color(infile,1);
  1276.             if( strcmp(draw_type,"point") == 0 ){
  1277.                 if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
  1278.                 if(reply_format == 0 ){reply_format = 8;}
  1279.                 /* 7 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n in x/y-range */
  1280.                 if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
  1281.                 if(use_input_xy == 1){
  1282.                     add_input_circle(js_include_file,1,1);
  1283.                     add_input_xy(js_include_file,canvas_root_id);
  1284.                 }
  1285.                 add_js_points(js_include_file,1,draw_type,line_width,line_width,stroke_color,stroke_opacity,1,stroke_color,stroke_opacity,0,1,1);
  1286.             }
  1287.             else
  1288.             if( strcmp(draw_type,"points") == 0 ){
  1289.                 if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
  1290.                 if(reply_format == 0 ){reply_format = 8;}
  1291.                 /* 7 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n in x/y-range */
  1292.                 if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
  1293.                 if(use_input_xy == 1){
  1294.                     add_input_circle(js_include_file,1,2);
  1295.                     add_input_xy(js_include_file,canvas_root_id);
  1296.                 }
  1297.                 add_js_points(js_include_file,2,draw_type,line_width,line_width,stroke_color,stroke_opacity,1,stroke_color,stroke_opacity,0,1,1);
  1298.             }
  1299.             else
  1300.             if( strcmp(draw_type,"segment") == 0 ){
  1301.                 if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
  1302.                 if( js_function[DRAW_SEGMENTS] != 1 ){ js_function[DRAW_SEGMENTS] = 1;}
  1303.                 if(reply_format == 0){reply_format = 11;}
  1304.                 if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
  1305.                 if(use_input_xy == 1){
  1306.                     add_input_segment(js_include_file,1);
  1307.                     add_input_x1y1x2y2(js_include_file,canvas_root_id);
  1308.                 }
  1309.                 add_js_segments(js_include_file,1,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
  1310.             }
  1311.             else
  1312.             if( strcmp(draw_type,"polyline") == 0 ){
  1313.                 if( js_function[DRAW_POLYLINE] != 1 ){ js_function[DRAW_POLYLINE] = 1;}
  1314.                 if(reply_format == 0){reply_format = 23;}
  1315.                 if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
  1316.                 if( use_input_xy == 1 ){
  1317.                     add_input_polyline(js_include_file);
  1318.                     add_input_xy(js_include_file,canvas_root_id);
  1319.                 }
  1320.                 add_js_polyline(js_include_file,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
  1321.             }
  1322.             else
  1323.             if( strcmp(draw_type,"segments") == 0 ){
  1324.                 if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
  1325.                 if( js_function[DRAW_SEGMENTS] != 1 ){ js_function[DRAW_SEGMENTS] = 1;}
  1326.                 if(reply_format == 0){reply_format = 11;}
  1327.                 if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
  1328.                 if(use_input_xy == 1){
  1329.                     add_input_segment(js_include_file,2);
  1330.                     add_input_x1y1x2y2(js_include_file,canvas_root_id);
  1331.                 }
  1332.                 add_js_segments(js_include_file,2,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
  1333.             }
  1334.             else
  1335.             if( strcmp(draw_type,"circle") == 0 ){
  1336.                 if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
  1337.                 if(reply_format == 0){reply_format = 10;}
  1338.                 /* 9 = x1:y1:r1,x2:y2:r2,x3:y3:r3,x4:y4:r3...x_n:y_n:r_n in x/y-range */
  1339.                 if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
  1340.                 if(use_input_xy == 1){
  1341.                     add_input_circle(js_include_file,2,1);
  1342.                     add_input_xyr(js_include_file,canvas_root_id);
  1343.                 }
  1344.                 add_js_circles(js_include_file,1,draw_type,line_width,line_width,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype[0],dashtype[1]);
  1345.             }
  1346.             else
  1347.             if( strcmp(draw_type,"circles") == 0 ){
  1348.                 if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
  1349.                 if(reply_format == 0){reply_format = 10;}
  1350.                 /* 9 = x1:y1:r1,x2:y2:r2,x3:y3:r3,x4:y4:r3...x_n:y_n:r_n in x/y-range */
  1351.                 add_js_circles(js_include_file,2,draw_type,line_width,line_width,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype[0],dashtype[1]);
  1352.                 if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
  1353.                 if(use_input_xy == 1){
  1354.                     add_input_circle(js_include_file,2,2);
  1355.                     add_input_xyr(js_include_file,canvas_root_id);
  1356.                 }
  1357.             }
  1358.             else
  1359.             if(strcmp(draw_type,"crosshair") == 0 ){
  1360.                 if( js_function[DRAW_CROSSHAIRS] != 1 ){ js_function[DRAW_CROSSHAIRS] = 1;}
  1361.                 if(reply_format == 0){reply_format = 8;}
  1362.                 /* 7 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n in x/y-range */
  1363.                 add_js_crosshairs(js_include_file,1,draw_type,line_width,crosshair_size ,stroke_color,stroke_opacity);
  1364.                 if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
  1365.                 if(use_input_xy == 1){
  1366.                     add_input_crosshair(js_include_file,1);
  1367.                     add_input_xy(js_include_file,canvas_root_id);
  1368.                 }
  1369.             }
  1370.             else
  1371.             if(strcmp(draw_type,"crosshairs") == 0 ){
  1372.                 if( js_function[DRAW_CROSSHAIRS] != 1 ){ js_function[DRAW_CROSSHAIRS] = 1;}
  1373.                 if(reply_format == 0){reply_format = 8;}
  1374.                 /* 7 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n in x/y-range */
  1375.                 add_js_crosshairs(js_include_file,2,draw_type,line_width,crosshair_size ,stroke_color,stroke_opacity);
  1376.                 if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
  1377.                 if(use_input_xy == 1){
  1378.                     add_input_crosshair(js_include_file,2);
  1379.                     add_input_xy(js_include_file,canvas_root_id);
  1380.                 }
  1381.             }
  1382.             else
  1383.             if(strcmp(draw_type,"freehandline") == 0 ){
  1384.                 if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
  1385.                 if(reply_format == 0){reply_format = 6;}
  1386.                 add_js_paths(js_include_file,1,draw_type,line_width,0,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype[0],dashtype[1]);
  1387.                 if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
  1388.                 if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
  1389.             }
  1390.             else
  1391.             if(strcmp(draw_type,"freehandlines") == 0 ){
  1392.                 if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
  1393.                 if(reply_format == 0){reply_format = 6;}
  1394.                 add_js_paths(js_include_file,2,draw_type,line_width,0,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype[0],dashtype[1]);
  1395.                 if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
  1396.                 if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
  1397.             }
  1398.             else
  1399.             if(strcmp(draw_type,"path") == 0 ){
  1400.                 if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
  1401.                 if(reply_format == 0){reply_format = 6;}
  1402.                 add_js_paths(js_include_file,1,draw_type,line_width,1,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype[0],dashtype[1]);
  1403.                 if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
  1404.                 if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
  1405.             }
  1406.             else
  1407.             if(strcmp(draw_type,"paths") == 0 ){
  1408.                 if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
  1409.                 if(reply_format == 0){reply_format = 6;}
  1410.                 add_js_paths(js_include_file,2,draw_type,line_width,1,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype[0],dashtype[1]);
  1411.                 if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
  1412.                 if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
  1413.             }
  1414.             else
  1415.             if(strcmp(draw_type,"arrows") == 0 ){
  1416.                 if( js_function[DRAW_ARROWS] != 1 ){ js_function[DRAW_ARROWS] = 1;}
  1417.                 if(reply_format == 0){reply_format = 11;}
  1418.                 add_js_arrows(js_include_file,2,draw_type,line_width,1,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1],arrow_head);
  1419.                 if(use_input_xy == 1){
  1420.                     add_input_arrow(js_include_file,2);
  1421.                     add_input_x1y1x2y2(js_include_file,canvas_root_id);
  1422.                 }
  1423.                 if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
  1424.             }
  1425.             else
  1426.             if(strcmp(draw_type,"arrows2") == 0 ){
  1427.                 if( js_function[DRAW_ARROWS] != 1 ){ js_function[DRAW_ARROWS] = 1;}
  1428.                 if(reply_format == 0){reply_format = 11;}
  1429.                 add_js_arrows(js_include_file,2,draw_type,line_width,2,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1],arrow_head);
  1430.                 if(use_input_xy == 1){
  1431.                     add_input_arrow(js_include_file,1);
  1432.                     add_input_x1y1x2y2(js_include_file,canvas_root_id);
  1433.                 }
  1434.                 if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
  1435.             }
  1436.             else
  1437.             if(strcmp(draw_type,"arrow2") == 0 ){
  1438.                 if( js_function[DRAW_ARROWS] != 1 ){ js_function[DRAW_ARROWS] = 1;}
  1439.                 if(reply_format == 0){reply_format = 11;}
  1440.                 add_js_arrows(js_include_file,1,draw_type,line_width,2,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1],arrow_head);
  1441.                 if(use_input_xy == 1){
  1442.                     add_input_arrow(js_include_file,1);
  1443.                     add_input_x1y1x2y2(js_include_file,canvas_root_id);
  1444.                 }
  1445.                 if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
  1446.             }
  1447.             else
  1448.             if(strcmp(draw_type,"arrow") == 0 ){
  1449.                 if( js_function[DRAW_ARROWS] != 1 ){ js_function[DRAW_ARROWS] = 1;}
  1450.                 if(reply_format == 0){reply_format = 11;}
  1451.                 add_js_arrows(js_include_file,1,draw_type,line_width,1,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1],arrow_head);
  1452.                 if(use_input_xy == 1){
  1453.                     add_input_arrow(js_include_file,1);
  1454.                     add_input_x1y1x2y2(js_include_file,canvas_root_id);
  1455.                 }
  1456.                 if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
  1457.             }
  1458.             else
  1459.             if(strcmp(draw_type,"polygon") == 0){
  1460.                 if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
  1461.                 if(reply_format == 0){reply_format = 2;}
  1462.                 add_js_poly(js_include_file,-1,draw_type,line_width,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype[0],dashtype[1]);
  1463.                 if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
  1464.                 if(use_input_xy == 2){
  1465.                   add_textarea_polygon(js_include_file);
  1466.                   add_textarea_xy(js_include_file,canvas_root_id);
  1467.                 }
  1468.             }
  1469.             else
  1470.             if(strncmp(draw_type,"poly",4) == 0){
  1471.                 if(strlen(draw_type) < 5){canvas_error("use command \"userdraw poly[3-9],color\" eg userdraw poly6,blue");}
  1472.                 if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
  1473.                 if(reply_format == 0){reply_format = 2;}
  1474.                 add_js_poly(js_include_file,(int) (draw_type[4]-'0'),draw_type,line_width,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype[0],dashtype[1]);
  1475.                 if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
  1476.                 if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
  1477.             }
  1478.             else
  1479.             if(strcmp(draw_type,"triangle") == 0){
  1480.                 if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
  1481.                 if(reply_format == 0){reply_format = 2;}
  1482.                 add_js_poly(js_include_file,3,draw_type,line_width,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype[0],dashtype[1]);
  1483.                 if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
  1484.                 if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
  1485.             }
  1486.             else
  1487.             if( strcmp(draw_type,"hline") == 0 ){
  1488.                 if( js_function[DRAW_LINES] != 1 ){ js_function[DRAW_LINES] = 1;}
  1489.                 if(reply_format == 0){reply_format = 11;}
  1490.                 add_js_hlines(js_include_file,1,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
  1491.                 if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
  1492.                 if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
  1493.             }
  1494.             else
  1495.             if( strcmp(draw_type,"hlines") == 0 ){
  1496.                 if( js_function[DRAW_LINES] != 1 ){ js_function[DRAW_LINES] = 1;}
  1497.                 if(reply_format == 0){reply_format = 11;}
  1498.                 add_js_hlines(js_include_file,2,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
  1499.                 if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
  1500.                 if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
  1501.             }
  1502.             else
  1503.             if( strcmp(draw_type,"vline") == 0 ){
  1504.                 if( js_function[DRAW_LINES] != 1 ){ js_function[DRAW_LINES] = 1;}
  1505.                 if(reply_format == 0){reply_format = 11;}
  1506.                 add_js_hlines(js_include_file,3,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
  1507.                 if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
  1508.                 if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
  1509.             }
  1510.             else
  1511.             if( strcmp(draw_type,"vlines") == 0 ){
  1512.                 if( js_function[DRAW_LINES] != 1 ){ js_function[DRAW_LINES] = 1;}
  1513.                 if(reply_format == 0){reply_format = 11;}
  1514.                 add_js_hlines(js_include_file,4,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
  1515.                 if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
  1516.                 if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
  1517.             }
  1518.             else
  1519.             if( strcmp(draw_type,"line") == 0 ){
  1520.                 if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
  1521.                 if( js_function[DRAW_LINES] != 1 ){ js_function[DRAW_LINES] = 1;}
  1522.                 if(reply_format == 0){reply_format = 11;}
  1523.                 add_js_lines(js_include_file,1,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
  1524.                 if( use_input_xy == 1 ){
  1525.                     add_input_line(js_include_file,1);
  1526.                     add_input_x1y1x2y2(js_include_file,canvas_root_id);
  1527.                 }
  1528.                 if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
  1529.             }
  1530.             else
  1531.             if( strcmp(draw_type,"lines") == 0 ){
  1532.                 if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
  1533.                 if( js_function[DRAW_LINES] != 1 ){ js_function[DRAW_LINES] = 1;}
  1534.                 if(reply_format == 0){reply_format = 11;}
  1535.                 add_js_lines(js_include_file,2,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
  1536.                 if( use_input_xy == 1 ){
  1537.                     add_input_line(js_include_file,2);
  1538.                     add_input_x1y1x2y2(js_include_file,canvas_root_id);
  1539.                 }
  1540.                 if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
  1541.             }
  1542.             else
  1543.             if( strcmp(draw_type,"demilines") == 0 || strcmp(draw_type,"demilines") == 0 ){
  1544.                 if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
  1545.                 if( js_function[DRAW_DEMILINES] != 1 ){ js_function[DRAW_DEMILINES] = 1;}
  1546.                 if(reply_format == 0){reply_format = 11;}
  1547.                 add_js_demilines(js_include_file,2,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
  1548.                 if( use_input_xy == 1 ){
  1549.                     add_input_demiline(js_include_file,2);
  1550.                     add_input_x1y1x2y2(js_include_file,canvas_root_id);
  1551.                 }
  1552.                 if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
  1553.             }
  1554.             else
  1555.             if( strcmp(draw_type,"demiline") == 0 || strcmp(draw_type,"demilines") == 0 ){
  1556.                 if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
  1557.                 if( js_function[DRAW_DEMILINES] != 1 ){ js_function[DRAW_DEMILINES] = 1;}
  1558.                 if(reply_format == 0){reply_format = 11;}
  1559.                 add_js_demilines(js_include_file,1,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
  1560.                 if( use_input_xy == 1 ){
  1561.                     add_input_demiline(js_include_file,1);
  1562.                     add_input_x1y1x2y2(js_include_file,canvas_root_id);
  1563.                 }
  1564.                 if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
  1565.             }
  1566.             else
  1567.             if( strcmp(draw_type,"rects") == 0){
  1568.                 if( js_function[DRAW_RECTS] != 1 ){ js_function[DRAW_RECTS] = 1;}
  1569.                 if(reply_format == 0){reply_format = 2;}
  1570.                 add_js_rect(js_include_file,2,0,draw_type,line_width,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype[0],dashtype[1]);
  1571.                 if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
  1572.                 if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
  1573.             }
  1574.             else
  1575.             if( strcmp(draw_type,"roundrects") == 0){
  1576.                 if( js_function[DRAW_ROUNDRECTS] != 1 ){ js_function[DRAW_ROUNDRECTS] = 1;}
  1577.                 if(reply_format == 0){reply_format = 2;}
  1578.                 add_js_rect(js_include_file,2,1,draw_type,line_width,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype[0],dashtype[1]);
  1579.                 if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
  1580.                 if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
  1581.             }
  1582.             else
  1583.             if( strcmp(draw_type,"rect") == 0){
  1584.                 if( js_function[DRAW_RECTS] != 1 ){ js_function[DRAW_RECTS] = 1;}
  1585.                 if(reply_format == 0){reply_format = 2;}
  1586.                 add_js_rect(js_include_file,1,0,draw_type,line_width,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype[0],dashtype[1]);
  1587.                 if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
  1588.                 if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
  1589.             }
  1590.             else
  1591.             if( strcmp(draw_type,"roundrect") == 0){
  1592.                 if( js_function[DRAW_ROUNDRECTS] != 1 ){ js_function[DRAW_ROUNDRECTS] = 1;}
  1593.                 if(reply_format == 0){reply_format = 2;}
  1594.                 add_js_rect(js_include_file,1,1,draw_type,line_width,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype[0],dashtype[1]);
  1595.                 if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
  1596.                 if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
  1597.             }
  1598.             else
  1599.             if( strcmp(draw_type,"arcs") == 0){
  1600.                 if( js_function[DRAW_SEGMENTS] != 1 ){ js_function[DRAW_SEGMENTS] = 1;}
  1601.                 if(reply_format == 0){reply_format = 25;}
  1602.                 add_js_arc(js_include_file,canvas_root_id,2,line_width,stroke_color,stroke_opacity,fill_color,fill_opacity,use_dashed,dashtype[0],dashtype[1]);
  1603.                 if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
  1604.                 if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
  1605.             }
  1606.             else
  1607.             if( strcmp(draw_type,"arc") == 0){
  1608.                 if( js_function[DRAW_SEGMENTS] != 1 ){ js_function[DRAW_SEGMENTS] = 1;}
  1609.                 if(reply_format == 0){reply_format = 25;}
  1610.                 add_js_arc(js_include_file,canvas_root_id,1,line_width,stroke_color,stroke_opacity,fill_color,fill_opacity,use_dashed,dashtype[0],dashtype[1]);
  1611.                 if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
  1612.                 if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
  1613.             }
  1614.             else
  1615.             if( strcmp(draw_type,"text") == 0){
  1616.                 if( js_function[DRAW_TEXTS] != 1 ){ js_function[DRAW_TEXTS] = 1;}
  1617.                 if(reply_format == 0){reply_format = 17;}
  1618.                 add_js_text(js_include_file,canvas_root_id,font_size,font_family,font_color,stroke_opacity);
  1619.                 if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
  1620.                 if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
  1621.             }
  1622.             else
  1623.             if( strcmp(draw_type,"inputs") == 0){
  1624.                 if( js_function[DRAW_INPUTS] != 1 ){ js_function[DRAW_INPUTS] = 1;}
  1625.                 if(reply_format == 0){reply_format = 27;}
  1626.                 add_js_inputs(js_include_file,canvas_root_id,2,input_cnt,input_style,line_width);
  1627.                 if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
  1628.                 if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
  1629.             }
  1630.             else
  1631.             if( strcmp(draw_type,"input") == 0){
  1632.                 if( js_function[DRAW_INPUTS] != 1 ){ js_function[DRAW_INPUTS] = 1;}
  1633.                 if(reply_format == 0){reply_format = 27;}
  1634.                 add_js_inputs(js_include_file,canvas_root_id,1,input_cnt,input_style,line_width);
  1635.                 if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
  1636.                 if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
  1637.             }
  1638.             else
  1639.             {
  1640.                 canvas_error("unknown drawtype or typo? ");
  1641.             }
  1642.             reset();
  1643.         break;
  1644.         case PLOTSTEPS:
  1645.             /*
  1646.              @ plotsteps a_number
  1647.              @ default 150
  1648.              @ use with care !
  1649.             */
  1650.             plot_steps = (int) (get_real(infile,1));
  1651.             break;
  1652.         case FONTSIZE:
  1653.         /*
  1654.          @fontsize font_size
  1655.          @default value 12
  1656.         */
  1657.             font_size = (int) (get_real(infile,1));
  1658.             break;
  1659.         case FONTCOLOR:
  1660.         /*
  1661.          @fontcolor color
  1662.          @color: hexcolor or colorname
  1663.          @default: black
  1664.          @example usage: x/y-axis text
  1665.         */
  1666.             font_color = get_color(infile,1);
  1667.             break;
  1668.         case ANIMATE:
  1669.         /*
  1670.          @animate type
  1671.          @REMOVED : this should be done with a slider
  1672.          @type may be "point" (nothing else , yet...)
  1673.          @the point is a filled rectangle ; adjust colour with command 'fillcolor colorname/hexnumber'
  1674.          @will animate a point on the next plot/curve command
  1675.          @the curve will not be draw
  1676.          @moves repeatedly from xmin to xmax
  1677.         */
  1678.             if( strstr(get_string(infile,1),"point") != 0 ){animation_type = 15;}else{canvas_error("the only animation type (for now) is \"point\"...");}
  1679.             break;
  1680.         case LEVELCURVE:
  1681.         /*
  1682.         @levelcurve color,expression in x/y,l1,l2,...
  1683.         @draws very primitive level curves for expression, with levels l1,l2,l3,...,l_n
  1684.         @the quality is <b>not to be compared</b> with the Flydraw levelcurve. <br />(choose flydraw if you want quality...)
  1685.         @every individual level curve may be set 'onclick / drag xy' <br />e.g. every single level curve (l1,l2,l3...l_n) has a unique identifier
  1686.         @note : the arrays for holding the javascript data are limited in size
  1687.         @note : reduce image size if javascript data arrays get overloaded<br />(command 'plotsteps int' will not control the data size of the plot...)
  1688.         */
  1689.             fill_color = get_color(infile,0);
  1690.             char *fun1 = get_string_argument(infile,0);
  1691.             if( strlen(fun1) == 0 ){canvas_error("function is NOT OK !");}
  1692.             i = 0;
  1693.             done = FALSE;
  1694.             while( !done ){
  1695.              double_data[i] = get_real(infile,1);
  1696.              i++;
  1697.             }
  1698.             for(c = 0 ; c < i; c++){
  1699.              fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,16,%s,[%d],[%d],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d));\n",click_cnt,onclick,drag_type,eval_levelcurve(xsize,ysize,fun1,xmin,xmax,ymin,ymax,plot_steps,precision,double_data[c]),line_width,line_width,line_width,stroke_color,stroke_opacity,fill_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt);
  1700.              click_cnt++;
  1701.             }
  1702.             reset();
  1703.             break;
  1704.         case TRACE_JSCURVE:
  1705.         /*
  1706.          @trace_jscurve some_math_function
  1707.          @will use a crosshair to trace the jsmath curve
  1708.          @two inputfields will display the current x/y-values (numerical evaluation by javascript)
  1709.          @default labels 'x' and 'y'<br />the commands 'xlabel some_x_axis_name' and 'ylabel some_y_axis_name' will set the label for the input fields
  1710.          @use linewidth,strokecolor,crosshairsize to adjust the corsshair.
  1711.          @the client browser will convert your math function to javascript math.<br />use parenthesis and rawmath : use 2*x in stead of 2x etc etc<br />no check is done on the validity of your function and/or syntax<br />use error console to debug any errors...
  1712.         */
  1713.             if( js_function[DRAW_CROSSHAIRS] != 1 ){ js_function[DRAW_CROSSHAIRS] = 1;}
  1714.             if( js_function[DRAW_LINES] != 1 ){ js_function[DRAW_LINES] = 1;}
  1715.             if( use_js_math == FALSE){
  1716.                 add_to_js_math(js_include_file);
  1717.                 use_js_math = TRUE;
  1718.             }
  1719.             add_trace_js_mouse(js_include_file,TRACE_CANVAS,canvas_root_id,stroke_color,get_string(infile,1),font_size,stroke_opacity,line_width,crosshair_size);
  1720.             break;
  1721.         case JSMATH:
  1722.         /*
  1723.             @jsmath some_math_function
  1724.             @will calculate an y-value from a userinput x-value and draws a crosshair on these coordinates.
  1725.             @default labels 'x' and 'y'<br />the commands 'xlabel some_x_axis_name' and 'ylabel some_y_axis_name' will set the label for the input fields
  1726.             @example: jsmath sin(x^2)
  1727.             @the client browser will convert your math function to javascript math.<br />use parenthesis and rawmath : use 2*x in stead of 2x etc etc<br />no check is done on the validity of your function and/or syntax<br />use error console to debug any errors...
  1728.         */
  1729.             if( js_function[DRAW_CROSSHAIRS] != 1 ){ js_function[DRAW_CROSSHAIRS] = 1;}
  1730.             if( use_js_math == FALSE){
  1731.                 add_to_js_math(js_include_file);
  1732.                 use_js_math = TRUE;
  1733.             }
  1734.             add_calc_y(js_include_file,canvas_root_id,get_string(infile,1));
  1735.             break;
  1736.         case JSCURVE:
  1737.         /*
  1738.          @jscurve color,formula(x)
  1739.          @your function will be plotted by the javascript engine of the client browser.
  1740.          @use only basic math in your curve:<br /> sqrt,^,asin,acos,atan,log,pi,abs,sin,cos,tan,e
  1741.          @use parenthesis and rawmath : use 2*x in stead of 2x ; use 2^(sin(x))...etc etc<br />use error console to debug any errors...
  1742.          @Attention : last "precision" command in the canvasdraw script determines the calculation precision of the javascript curve plot !
  1743.          @no validity check is done by wims.
  1744.          @zooming & panning are implemented :<br />use command 'zoom color' for mouse driven zooming<br />or use keyword 'setlimits' for inputfields setting xmin/xmax, ymin/ymax
  1745.          @use command 'trace_jscurve formula(x)` for tracing
  1746.          @use commmand 'jsmath  formula(x)` for calculating and displaying indiviual points on the curve
  1747.          @can not be set draggable / onclick (yet)
  1748.          @commands plotjump / plotstep are not active for 'jscurve'
  1749.         */
  1750.             stroke_color = get_color(infile,0);
  1751.             if( use_js_math == FALSE){/* add this stuff only once...*/
  1752.                 add_to_js_math(js_include_file);
  1753.                 use_js_math = TRUE;
  1754.             }
  1755.             if( use_js_plot == FALSE){
  1756.                 use_js_plot = TRUE;
  1757.                 add_jsplot(js_include_file,canvas_root_id); /* this plots the function on JSPLOT_CANVAS */
  1758.             }
  1759.             temp = get_string_argument(infile,1);
  1760.             string_length = snprintf(NULL,0,  "jsplot(%d,\"%s\",%d,\"%s\",%.2f,%d,%d,%d); ",JSPLOT_CANVAS+use_js_plot,temp,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
  1761.             check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  1762.             snprintf(tmp_buffer,string_length,"jsplot(%d,\"%s\",%d,\"%s\",%.2f,%d,%d,%d); ",JSPLOT_CANVAS+use_js_plot,temp,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
  1763.             add_to_buffer(tmp_buffer);
  1764.             use_js_plot++; /* we need to create multiple canvasses, so we may zoom and pan ?? */
  1765.  
  1766.         break;
  1767.         case CURVE:
  1768.         /*
  1769.          @curve color,formula(x)
  1770.          @plot color,formula(x)
  1771.          @use command trange before command curve / plot  (trange -pi,pi)<br />curve color,formula1(t),formula2(t)
  1772.          @use command "precision" to increase the number of digits of the plotted points
  1773.          @use command "plotsteps" to increase / decrease the amount of plotted points (default 150)
  1774.          @may be set draggable / onclick
  1775.         */
  1776.             if( use_parametric == TRUE ){ /* parametric color,fun1(t),fun2(t)*/
  1777.                 use_parametric = FALSE;
  1778.                 stroke_color = get_color(infile,0);
  1779.                 char *fun1 = get_string_argument(infile,0);
  1780.                 char *fun2 = get_string_argument(infile,1);
  1781.                 if( strlen(fun1) == 0 || strlen(fun2) == 0 ){canvas_error("parametric functions are NOT OK !");}
  1782.                 fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,%d,%s,[%d],[%d],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d));\n",click_cnt,onclick,drag_type,animation_type,eval_parametric(xsize,ysize,fun1,fun2,xmin,xmax,ymin,ymax,tmin,tmax,plot_steps,precision),2*line_width,2*line_width,line_width,stroke_color,stroke_opacity,fill_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt);
  1783.                 click_cnt++;
  1784.             }
  1785.             else
  1786.             {
  1787.                 stroke_color = get_color(infile,0);
  1788.                 char *fun1 = get_string_argument(infile,1);
  1789.                 if( strlen(fun1) == 0 ){canvas_error("function is NOT OK !");}
  1790.                 fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,%d,%s,[%d],[%d],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d));\n",click_cnt,onclick,drag_type,animation_type,eval(xsize,ysize,fun1,xmin,xmax,ymin,ymax,plot_steps,precision),line_width,line_width,line_width,stroke_color,stroke_opacity,fill_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt);
  1791.                 click_cnt++;
  1792.             }
  1793.             animation_type = 9;/* reset to curve plotting without animation */
  1794.             reset();
  1795.             break;
  1796.         case FLY_TEXT:
  1797.         /*
  1798.         @ text fontcolor,x,y,font,text_string
  1799.         @ font may be described by keywords : giant,huge,normal,small,tiny
  1800.         @ use command 'fontsize' to increase base fontsize for these keywords
  1801.         @ may be set "onclick" or "drag xy"
  1802.         @ backwards compatible with flydraw
  1803.         @ unicode supported: text red,0,0,huge,\\u2232
  1804.         @ use command 'string' combined with 'fontfamily' for a more fine grained control over html5 canvas text element
  1805.         @ Avoid  mixing old flydraw commands 'text' 'textup' with new canvasdraw commands 'string' stringup'<br />If the fontfamily was set completely like "fontfamily italic 24px Ariel".<br />In that case reset 'fontfamily' to something lke 'fontfamily Ariel' before the old flydraw commands.
  1806.         */
  1807.             for(i = 0; i < 5 ;i++){
  1808.                 switch(i){
  1809.                     case 0: stroke_color = get_color(infile,0);break;/* font_color == stroke_color name or hex color */
  1810.                     case 1: double_data[0] = get_real(infile,0);break; /* x */
  1811.                     case 2: double_data[1] = get_real(infile,0);break; /* y */
  1812.                     case 3: fly_font = get_string_argument(infile,0);
  1813.                             if(strcmp(fly_font,"giant") == 0){
  1814.                                 font_size = (int)(font_size + 24);
  1815.                             }
  1816.                             else
  1817.                             {
  1818.                                 if(strcmp(fly_font,"huge") == 0){
  1819.                                     font_size = (int)(font_size + 14);
  1820.                                 }
  1821.                                 else
  1822.                                 {
  1823.                                     if(strcmp(fly_font,"large") == 0){
  1824.                                         font_size = (int)(font_size + 6);
  1825.                                         }
  1826.                                         else
  1827.                                         {
  1828.                                             if(strcmp(fly_font,"small") == 0){
  1829.                                                 font_size = (int)(font_size - 4);
  1830.                                                 if(font_size<0){font_size = 8;}
  1831.                                         }
  1832.                                     }
  1833.                                 }
  1834.                             }
  1835.                             break; /* font_size ! */
  1836.                     case 4:
  1837.                         temp = get_string_argument(infile,1);
  1838.                         decimals = find_number_of_digits(precision);
  1839.                         fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,14,[%.*f],[%.*f],[30],[30],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%f,\"%s\",%d,\"%s\",%d,%s,%d,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[0],decimals,double_data[1],line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,0,0,0,0,use_rotate,angle,temp,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt);
  1840.                         click_cnt++;reset();break;
  1841.                     default:break;
  1842.                 }
  1843.             }
  1844.             break;
  1845.         case FLY_TEXTUP:
  1846.         /*
  1847.          @ textup fontcolor,x,y,font,text_string
  1848.          @ can <b>not</b> be set "onclick" or "drag xy" (because of translaton matrix...mouse incompatible)
  1849.          @ font may be described by keywords : giant,huge,normal,small,tiny
  1850.          @ use command 'fontsize' to increase base fontsize for the keywords
  1851.          @ backwards compatible with flydraw
  1852.          @ unicode supported: textup red,0,0,huge,\\u2232
  1853.          @ use command 'stringup' and 'fontfamily' for a more fine grained control over html5 canvas text element
  1854.          @ Avoid  mixing old flydraw commands 'text' 'textup' with new canvasdraw commands 'string' stringup'<br />If the fontfamily was set completely like "fontfamily italic 24px Ariel".<br />In that case reset 'fontfamily' to something lke 'fontfamily Ariel' before the old flydraw commands.
  1855.         */
  1856.             if( js_function[DRAW_TEXTS] != 1 ){ js_function[DRAW_TEXTS] = 1;}
  1857.             for(i = 0; i<5 ;i++){
  1858.                 switch(i){
  1859.                     case 0: font_color = get_color(infile,0);break;/* name or hex color */
  1860.                     case 1: int_data[0] = x2px(get_real(infile,0));break; /* x */
  1861.                     case 2: int_data[1] = y2px(get_real(infile,0));break; /* y */
  1862.                     case 3: fly_font = get_string_argument(infile,0);
  1863.                             if(strcmp(fly_font,"giant") == 0){
  1864.                                 font_size = (int)(font_size + 24);
  1865.                             }
  1866.                             else
  1867.                             {
  1868.                                 if(strcmp(fly_font,"huge") == 0){
  1869.                                     font_size = (int)(font_size + 14);
  1870.                                 }
  1871.                                 else
  1872.                                 {
  1873.                                     if(strcmp(fly_font,"large") == 0){
  1874.                                         font_size = (int)(font_size + 6);
  1875.                                         }
  1876.                                         else
  1877.                                         {
  1878.                                             if(strcmp(fly_font,"small") == 0){
  1879.                                                 font_size = (int)(font_size - 4);
  1880.                                                 if(font_size<0){font_size = 8;}
  1881.                                         }
  1882.                                     }
  1883.                                 }
  1884.                             }
  1885.                             break; /* font_size ! */
  1886.                     case 4:
  1887.                     decimals = find_number_of_digits(precision);
  1888.                     temp = get_string_argument(infile,1);
  1889.                     string_length = snprintf(NULL,0,"draw_text(%d,%d,%d,%d,\"%s\",\"%s\",%.2f,90,\"%s\",%d,%.2f,%d,%s);\n",STATIC_CANVAS,int_data[0],int_data[1],font_size,font_family,font_color,stroke_opacity,temp,use_rotate,angle,use_affine,affine_matrix);
  1890.                     check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  1891.                     snprintf(tmp_buffer,string_length,"draw_text(%d,%d,%d,%d,\"%s\",\"%s\",%.2f,90,\"%s\",%d,%.2f,%d,%s);\n",STATIC_CANVAS,int_data[0],int_data[1],font_size,font_family,font_color,stroke_opacity,temp,use_rotate,angle,use_affine,affine_matrix);
  1892.                     add_to_buffer(tmp_buffer);
  1893.                     break;
  1894.                     default:break;
  1895.                 }
  1896.             }
  1897.             reset();
  1898.             break;
  1899.         case FONTFAMILY:
  1900.         /*
  1901.          @ fontfamily font_description
  1902.          @ set the font family; for browsers that support it
  1903.          @ font_description: Ariel ,Courier, Helvetica etc
  1904.          @ in case commands<br /> 'string color,x,y,the string'<br /> 'stringup color,x,y,rotation,the string'<br />fontfamily can be something like:<br />italic 34px Ariel
  1905.          @ use correct syntax : 'font style' 'font size'px 'fontfamily'
  1906.         */
  1907.             font_family = get_string(infile,1);
  1908.             break;
  1909.         case STRINGUP:
  1910.         /*
  1911.          @ stringup color,x,y,rotation_degrees,the text string
  1912.          @ can <b>not</b> be set "onclick" or "drag xy" (because of translaton matrix...mouse incompatible)
  1913.          @ unicode supported: stringup red,0,0,45,\\u2232
  1914.          @ use a command like 'fontfamily bold 34px Courier' <br />to set fonts on browser that support font change
  1915.  
  1916.         */
  1917.             if( js_function[DRAW_TEXTS] != 1 ){ js_function[DRAW_TEXTS] = 1;}   /* can not be added to shape library : rotate / mouse issues */
  1918.             for(i=0;i<6;i++){
  1919.                 switch(i){
  1920.                     case 0: font_color = get_color(infile,0);break;/* name or hex color */
  1921.                     case 1: int_data[0] = x2px(get_real(infile,0));break; /* x */
  1922.                     case 2: int_data[1] = y2px(get_real(infile,0));break; /* y */
  1923.                     case 3: double_data[0] = get_real(infile,0);break;/* rotation */
  1924.                     case 4: decimals = find_number_of_digits(precision);
  1925.                             temp = get_string_argument(infile,1);
  1926.                             string_length = snprintf(NULL,0,"draw_text(%d,%d,%d,%d,\"%s\",\"%s\",%.2f,%.2f,\"%s\",%d,%.2f,%d,%s);\n",STATIC_CANVAS,int_data[0],int_data[1],font_size,font_family,font_color,stroke_opacity,double_data[0],temp,use_rotate,angle,use_affine,affine_matrix);
  1927.                             check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  1928.                             snprintf(tmp_buffer,string_length,"draw_text(%d,%d,%d,%d,\"%s\",\"%s\",%.2f,%.2f,\"%s\",%d,%.2f,%d,%s);\n",STATIC_CANVAS,int_data[0],int_data[1],font_size,font_family,font_color,stroke_opacity,double_data[0],temp,use_rotate,angle,use_affine,affine_matrix);
  1929.                             add_to_buffer(tmp_buffer);
  1930.                             break;
  1931.                     default:break;
  1932.                 }
  1933.             }
  1934.             reset();
  1935.             break;
  1936.         case STRING:
  1937.         /*
  1938.          @ string color,x,y,the text string
  1939.          @ may be set "onclick" or "drag xy"
  1940.          @ unicode supported: string red,0,0,\\u2232
  1941.          @ use a command like 'fontfamily italic 24px Ariel' <br />to set fonts on browser that support font change
  1942.         */
  1943.             for(i=0;i<5;i++){
  1944.                 switch(i){
  1945.                     case 0: stroke_color = get_color(infile,0);break;/* name or hex color */
  1946.                     case 1: double_data[0] = get_real(infile,0);break; /* x in xrange*/
  1947.                     case 2: double_data[1] = get_real(infile,0);break; /* y in yrange*/
  1948.                     case 3: decimals = find_number_of_digits(precision);
  1949.                         temp = get_string_argument(infile,1);
  1950.                         decimals = find_number_of_digits(precision);
  1951.                         fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,14,[%.*f],[%.*f],[30],[30],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%f,\"%s\",%d,\"%s\",%d,%s,%d,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[0],decimals,double_data[1],line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,0,0,0,0,use_rotate,angle,temp,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt);
  1952.                         click_cnt++;reset();break;
  1953.                     default:break;
  1954.                 }
  1955.             }
  1956.             break;
  1957.         case CENTERSTRING:
  1958.         /*
  1959.          @ centerstring color,y-value,the text string
  1960.          @ title color,y-value,the text string
  1961.          @ draw a string centered on the canvas at y = y-value
  1962.          @ can not set "onclick" or "drag xy" (...)
  1963.          @ unicode supported: centerstring red,5,\\u2232
  1964.          @ use a command like 'fontfamily italic 24px Ariel' <br />to set fonts on browser that support font change
  1965.         */
  1966.             if( js_function[DRAW_CENTERSTRING] != 1 ){ js_function[DRAW_CENTERSTRING] = 1;}
  1967.             for(i=0;i<3;i++){
  1968.                 switch(i){
  1969.                     case 0: stroke_color = get_color(infile,0);break;/* name or hex color */
  1970.                     case 1: double_data[0] = get_real(infile,0);break; /* y in xrange*/
  1971.                     case 2: temp = get_string_argument(infile,1);
  1972.                             /* draw_text = function(canvas_type,y,font_family,stroke_color,stroke_opacity,text) */
  1973.                             decimals = find_number_of_digits(precision);
  1974.                             string_length = snprintf(NULL,0,
  1975.                             "draw_centerstring(%d,%.*f,\"%s\",\"%s\",%.2f,\"%s\");\n",canvas_root_id,decimals,double_data[0],font_family,stroke_color,stroke_opacity,temp);
  1976.                             check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  1977.                             snprintf(tmp_buffer,string_length,"draw_centerstring(%d,%.*f,\"%s\",\"%s\",%.2f,\"%s\");\n",canvas_root_id,decimals,double_data[0],font_family,stroke_color,stroke_opacity,temp);
  1978.                             add_to_buffer(tmp_buffer);
  1979.                             break;
  1980.                     default:break;
  1981.                 }
  1982.             }
  1983.             break;
  1984.         case MATHML:
  1985.         /*
  1986.         @ mathml x1,y1,x2,y2,mathml_string
  1987.         @ mathml will be displayed in a rectangle left top (x1:y1) , right bottom (x2:y2)
  1988.         @ can be set onclick <br />(however dragging is not supported)<br />javascript:read_dragdrop(); will return click number of mathml-object
  1989.         @ if inputfields are incorporated in mathml (with id's : id='mathml0',id='mathml1',...id='mathml_n')<br />the user_input values will be read by javascript:read_mathml();<br />attention: if after this mathml-input object other user-interactions are included, these will read mathml too using "read_canvas();"
  1990.         @ If other inputfields (command input / command textarea) or userdraw is performed, the function read_canvas() will not read mathml. Use some generic function to read it....
  1991.  
  1992.         */
  1993.             if( js_function[DRAW_XML] != 1 ){ js_function[DRAW_XML] = 1;}
  1994.             for(i=0;i<5;i++){
  1995.                 switch(i){
  1996.                     case 0: int_data[0]=x2px(get_real(infile,0));break; /* x in x/y-range coord system -> pixel width */
  1997.                     case 1: int_data[1]=y2px(get_real(infile,0));break; /* y in x/y-range coord system  -> pixel height */
  1998.                     case 2: int_data[2]=x2px(get_real(infile,0)) - int_data[0];break; /* width in x/y-range coord system -> pixel width */
  1999.                     case 3: int_data[3]=y2px(get_real(infile,0)) - int_data[1];break; /* height in x/y-range coord system  -> pixel height */
  2000.                     case 4: decimals = find_number_of_digits(precision);
  2001.                             if(onclick == 1 ){ onclick = click_cnt;click_cnt++;}
  2002.                             temp = get_string(infile,1);
  2003.                             if( strstr(temp,"\"") != 0 ){ temp = str_replace(temp,"\"","'"); }
  2004.                             string_length = snprintf(NULL,0,"draw_xml(%d,%d,%d,%d,%d,\"%s\",%d);\n",canvas_root_id,int_data[0],int_data[1],int_data[2],int_data[3],temp,onclick);
  2005.                             check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  2006.                             snprintf(tmp_buffer,string_length,"draw_xml(%d,%d,%d,%d,%d,\"%s\",%d);\n",canvas_root_id,int_data[0],int_data[1],int_data[2],int_data[3],temp,onclick);
  2007.                             add_to_buffer(tmp_buffer);
  2008.                             /*
  2009.                              in case inputs are present , trigger adding the read_mathml()
  2010.                              if no other reply_format is defined
  2011.                              note: all other reply types will include a reading of elements with id='mathml'+p)
  2012.                              */
  2013.                             if(strstr(temp,"mathml0") != NULL){
  2014.                              if(reply_format == 0 ){reply_format = 16;} /* no other reply type is defined */
  2015.                             }
  2016.                             break;
  2017.                     default:break;
  2018.                 }
  2019.             }
  2020.             reset();
  2021.             break;
  2022.         case HTTP:
  2023.         /*
  2024.          @http x1,y1,x2,y2,http://some_adress.com
  2025.          @an active html-page will be displayed in an "iframe" rectangle left top (x1:y1) , right bottom (x2:y2)
  2026.          @do not use interactivity (or mouse) if the mouse needs to be active in the iframe
  2027.          @can not be 'set onclick' or 'drag xy'
  2028.         */
  2029.             if( js_function[DRAW_HTTP] != 1 ){ js_function[DRAW_HTTP] = 1;}
  2030.             for(i=0;i<5;i++){
  2031.                 switch(i){
  2032.                     case 0: int_data[0]=x2px(get_real(infile,0));break; /* x in x/y-range coord system -> pixel width */
  2033.                     case 1: int_data[1]=y2px(get_real(infile,0));break; /* y in x/y-range coord system  -> pixel height */
  2034.                     case 2: int_data[2]=x2px(get_real(infile,0)) - int_data[0];break; /* width in x/y-range coord system -> pixel width */
  2035.                     case 3: int_data[3]=y2px(get_real(infile,0)) - int_data[1];break; /* height in x/y-range coord system  -> pixel height */
  2036.                     case 4: decimals = find_number_of_digits(precision);
  2037.                             temp = get_string(infile,1);
  2038.                             if(strstr(temp,"\"") != 0 ){ temp = str_replace(temp,"\"","'");}
  2039.                             string_length = snprintf(NULL,0,"draw_http(%d,%d,%d,%d,%d,\"%s\");\n",canvas_root_id,int_data[0],int_data[1],int_data[2],int_data[3],temp);
  2040.                             check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  2041.                             snprintf(tmp_buffer,string_length,"draw_http(%d,%d,%d,%d,%d,\"%s\");\n",canvas_root_id,int_data[0],int_data[1],int_data[2],int_data[3],temp);
  2042.                             add_to_buffer(tmp_buffer);
  2043.                     break;
  2044.                 }
  2045.             }
  2046.             reset();
  2047.             break;
  2048.         case HTML:
  2049.         /*
  2050.          @ html x1,y1,x2,y2,html_string
  2051.          @ all tags are allowed
  2052.          @ can be set onclick <br />(dragging not supported)<br />javascript:read_dragdrop(); will return click number of mathml-object
  2053.          @ if inputfields are incorporated  (with id's : id='mathml0',id='mathml1',...id='mathml_n')<br />the user_input values will be read by javascript:read_canvas(); <br />If other inputfields (command input / command textarea) or userdraw is performed, these values will NOT be read as well.
  2054.  
  2055.          note: uses the same code as 'mathml'
  2056.         */
  2057.             break;
  2058.         case X_AXIS_STRINGS:
  2059.         /*
  2060.          @ xaxis num1:string1:num2:string2:num3:string3:num4:string4:....num_n:string_n
  2061.          @ xaxistext num1:string1:num2:string2:num3:string3:num4:string4:....num_n:string_n
  2062.          @ use these x-axis values in stead of default xmin...xmax
  2063.          @ use command "fontcolor", "fontsize" , "fontfamily" to adjust font <br />defaults: black,12,Ariel
  2064.          @ if the 'x-axis words' are to big amd will overlap, a simple alternating offset will be applied
  2065.          @ example:<br />size 400,400<br />xrange 0,13<br />yrange -100,500<br />axis<br />xaxis 1:january:2:february:3:march:5:may:6:june:7:july:8:august:9:september:10:october:11:november:12:december<br />#'xmajor' steps should be synchronised with numbers eg. "1" in this example<br />grid 1,100,grey,1,4,6,grey
  2066.          @ example:<br />size 400,400<br />xrange -5*pi,5*pi<br />yrange -100,500<br />axis<br />xaxis -4*pi:-4\\u03c0:-3*pi:-3\\u03c0:-2*pi:-2\\u03c0:-1*pi:-\\u03c0:0:0:pi:\\u03c0:2*pi:2\\u03c01:3*pi:3\\u03c0:4*pi:4\\u03c0<br />#'xmajor' steps should be synchronised with numbers eg. "1" in this example<br />grid pi,1,grey,1,3,6,grey
  2067.         */
  2068.             temp = get_string(infile,1);
  2069.             if( strstr(temp,":") != 0 ){ temp = str_replace(temp,":","\",\"");}
  2070.             if( strstr(temp,"pi") != 0 ){ temp = str_replace(temp,"pi","(3.1415927)");}/* we need to replace pi for javascript y-value*/
  2071.             fprintf(js_include_file,"x_strings = [\"%s\"];\n ",temp);
  2072.             use_axis_numbering = 1;
  2073.             break;
  2074.         case Y_AXIS_STRINGS:
  2075.         /*
  2076.          @ yaxis num1:string1:num2:string2:num3:string3:num4:string4:....num_n:string_n
  2077.          @ yaxistext num1:string1:num2:string2:num3:string3:num4:string4:....num_n:string_n
  2078.          @ use command "fontcolor", "fontsize" , "fontfamily" to adjust font <br />defaults: black,12,Ariel
  2079.          @ use these y-axis values in stead of default ymin...ymax
  2080.          @ example:<br />size 400,400<br />yrange 0,13<br />xrange -100,500<br />axis<br />yaxis 1:january:2:february:3:march:5:may:6:june:7:july:8:august:9:september:10:october:11:november:12:december<br />#'ymajor' steps should be synchronised with numbers eg. "1" in this example<br />grid 100,1,grey,4,1,6,grey
  2081.         */
  2082.             temp = get_string(infile,1);
  2083.             if( strstr(temp,":") != 0 ){ temp = str_replace(temp,":","\",\"");}
  2084.             if( strstr(temp,"pi") != 0 ){ temp = str_replace(temp,"pi","(3.1415927)");}/* we need to replace pi for javascript y-value*/
  2085.             fprintf(js_include_file,"y_strings = [\"%s\"];\n ",temp);
  2086.             use_axis_numbering = 1;
  2087.             break;
  2088.  
  2089.         case AXIS_NUMBERING:
  2090.         /*
  2091.             @ axisnumbering
  2092.             @ keyword, no arguments required
  2093.         */
  2094.             use_axis_numbering = 1;
  2095.             break;
  2096.         case AXIS:
  2097.         /*
  2098.             @ axis
  2099.             @ keyword, no arguments required
  2100.  
  2101.         */
  2102.             use_axis = TRUE;
  2103.             break;
  2104.         case KILLSLIDER:
  2105.         /*
  2106.          @ killslider
  2107.          @ keyword, no arguments required
  2108.          @ ends grouping of object under a preciously defined slider
  2109.         */
  2110.             slider = 0;
  2111.             break;
  2112.         case SLIDER:
  2113.         /*
  2114.         @ slider start_value,end_value,width px,height px,type,label
  2115.         @ type: xy,x,y,angle
  2116.         @ if a value display is desired, use<br />type:xy display,x display,y display,angle radian,angle degree
  2117.         @ is a unit for x / y value display is needed, use commands 'xunit' and / or 'yunit'
  2118.         @ use commmand 'slider' before draggable/clickable objects.
  2119.         @ a slider will affect all draggable objects after the 'slider' command...<br />and can be used to group translate / rotate several objects...<br />until a next 'slider' or keyword 'killslider'
  2120.         @ amount of sliders is not limited.
  2121.         @ javascript:read_dragdrop(); will return an array with 'object_number:slider_value'
  2122.         @ type=xy: will produce a 2D 'slider' [rectangle width x heigh px] in your web page
  2123.         @ every draggable object may have it's own slider (no limit in amount of sliders)
  2124.         @ label: some slider text
  2125.         @ use fillcolor for slider ball
  2126.         @ use strokecolor for slider bar
  2127.         @ use fontfamily / fontcolor to set used fonts
  2128.         @ use opacity (only fill opacity will be used) to set transparency
  2129.         @ the slider canvas will be added to the 'tooltip div' : so incompatible with command tooltip ; setlimits etc
  2130.         */
  2131.             for(i=0; i<6 ; i++){
  2132.                 switch(i){
  2133.                     case 0: double_data[0] = get_real(infile,0);break; /* start value */
  2134.                     case 1: double_data[1] = get_real(infile,0);break; /* end value */
  2135.                     case 2: int_data[0] = (int)(get_real(infile,0));break; /* width */
  2136.                     case 3: int_data[1] = (int)(get_real(infile,0));break; /* height */
  2137.                     case 4: temp = get_string_argument(infile,0); /* type : xy,x,y,angle */
  2138.                     /* xy display*/
  2139.                     if(strstr(temp,"xy")!= 0){
  2140.                      slider = 4;
  2141.                     }
  2142.                     else
  2143.                     {
  2144.                      if(strstr(temp,"x") != 0){
  2145.                       slider = 1;
  2146.                      }
  2147.                      else
  2148.                      {
  2149.                       if(strstr(temp,"y") != 0){
  2150.                        slider = 2;
  2151.                       }
  2152.                       else
  2153.                       {
  2154.                        if(strstr(temp,"angle") != 0){ /* angle diplay radian */
  2155.                         slider = 3;
  2156.                        }
  2157.                        else
  2158.                        {
  2159.                         canvas_error("slider types may be : x , y , xy , angle");
  2160.                        }
  2161.                       }
  2162.                      }
  2163.                     }
  2164.                     if(strstr(temp,"display")!=0){
  2165.                      use_slider_display = 1; /* show x xy values in canvas window */
  2166.                     }
  2167.                     else
  2168.                     {
  2169.                      if(strstr(temp,"degree")!= 0){
  2170.                       use_slider_display = 2; /* show angle values in canvas window */
  2171.                      }
  2172.                      else
  2173.                      {
  2174.                       if(strstr(temp,"radian")!=0){
  2175.                        use_slider_display = 3; /* show radian values in canvas window */
  2176.                       }
  2177.                      }
  2178.                     }
  2179.                     if(use_slider_display != 0 && slider_cnt == 0){ /*add just once the display js-code */
  2180.                      add_slider_display(js_include_file,canvas_root_id,precision,font_size,font_color,stroke_opacity);
  2181.                     }
  2182.                     break;
  2183.                     case 5: /* some string used for slider description  */
  2184.                     slider_cnt++;
  2185.                     if(slider == 4){
  2186.                      add_xyslider(js_include_file,canvas_root_id,double_data[0],double_data[1],int_data[0],int_data[1],slider,get_string_argument(infile,1),slider_cnt,stroke_color,fill_color,line_width,fill_opacity,font_family,font_color,use_slider_display );
  2187.                     }else{
  2188.                      add_slider(js_include_file,canvas_root_id,double_data[0],double_data[1],int_data[0],int_data[1],slider,get_string_argument(infile,1),slider_cnt,stroke_color,fill_color,line_width,fill_opacity,font_family,font_color,use_slider_display);
  2189.                     }
  2190.                     break;
  2191.                 }
  2192.              }
  2193.             break;
  2194.         case SGRAPH:
  2195.         /*
  2196.          @ sgraph xstart,ystart,xmajor,ymajor,xminor,yminor,majorgrid_color,minorgrid_color
  2197.          @ primitive implementation of a 'broken scale' graph...
  2198.          @ not very versatile: only usable in combination with userdraw <br />eg no other objects will obey this "coordinate system"<br />if you want to place an object into this coordinate system, be aware that 10% or 20% of xsize and/or ysize is 'lost'.<br />Use these "formulas" to recalculate the virtual coordinates:<br />factor=0.8 in case xstart != xmin (or ystart != ymin)<br />factor=0.9 in case xstart = xmin (or ystart = ymin)<br />px_x_point = ((factor*xsize)/(xmax - xstart))*(x_point - xmax)+xsize<br />x_recalculated = px*(xmax - xmin)/xsize + $xmin<br />px_y_point = -1*factor*y_point*ysize/(ymax - ystart) + ymax*factor*ysize/(ymax - ystart)<br />y_recalculated = ymax - py*(ymax - ymin)/ysize<br />
  2199.          @ example:<br />size 400,400<br />xrange 0,10000<br />yrange 0,100<br />sgraph 9000,50,100,10,4,4,grey,blue<br />userinput_xy<br />linewidth 2<br />userdraw segments,red
  2200.         */
  2201.             if( js_function[DRAW_SGRAPH] != 1 ){ js_function[DRAW_SGRAPH] = 1;}
  2202.             for(i = 0 ; i < 8 ;i++){
  2203.                 switch(i){
  2204.                     case 0:double_data[0] = get_real(infile,0);break;
  2205.                     case 1:double_data[1] = get_real(infile,0);break;
  2206.                     case 2:double_data[2] = get_real(infile,0);break;
  2207.                     case 3:double_data[3] = get_real(infile,0);break;
  2208.                     case 4:int_data[0] = (int)(get_real(infile,0));break;
  2209.                     case 5:int_data[1] = (int)(get_real(infile,0));break;
  2210.                     case 6:stroke_color = get_color(infile,0);break;
  2211.                     case 7:font_color = get_color(infile,1);
  2212.                     string_length = snprintf(NULL,0,"xstart = %f;\nystart = %f;\ndraw_sgraph(%d,%d,%f,%f,%d,%d,\"%s\",\"%s\",\"%s\",%f,%d);\n",double_data[0],double_data[1],GRID_CANVAS,precision,double_data[2],double_data[3],int_data[0],int_data[1],stroke_color,font_color,font_family,stroke_opacity,font_size);
  2213.                     check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  2214.                     snprintf(tmp_buffer,string_length,"xstart = %f;\nystart = %f;\ndraw_sgraph(%d,%d,%f,%f,%d,%d,\"%s\",\"%s\",\"%s\",%f,%d);\n",double_data[0],double_data[1],GRID_CANVAS,precision,double_data[2],double_data[3],int_data[0],int_data[1],stroke_color,font_color,font_family,stroke_opacity,font_size);
  2215.                     add_to_buffer(tmp_buffer);
  2216.                     break;
  2217.                     default:break;
  2218.                 }
  2219.             }
  2220.             /* sgraph(canvas_type,precision,xmajor,ymajor,xminor,yminor,majorcolor,minorcolor,fontfamily,opacity)*/
  2221.             break;
  2222.         case GRID:/* xmajor,ymajor,color [,xminor,yminor,tick length (px) ,color]*/
  2223.         /*
  2224.          @ grid step_x,step_y,gridcolor
  2225.          @ use command "fontcolor", "fontsize" , "fontfamily" to adjust font <br />defaults: black,12,Ariel
  2226.          @ if keywords "axis" or "axisnumbering" are set, use :<br />grid step_x,step_y,major_color,minor_x,minor_y,tics height in px,axis_color<br />minor x step = step_x / minor_x
  2227.          @ if xmin > 0 and/or ymin > 0 and zooming / panning is not activ: <br /> be aware that the x/y-axis numbering and x/y major/minor tic marks will not be visual <br /> as they are placed under the x-axis and left to the y-axis (in Quadrant II and IV)
  2228.          @ can not be set "onclick" or "drag xy"
  2229.          @ use commands 'xlabel some_string' and/or 'ylabel some_string' to label axis;<br />use command "fontsize" to adjust size (the font family is non-configurable 'italic your_fontsize px Ariel')
  2230.          @ see commands "xaxis" or "xaxistext", "yaxis" or "yaxistext" to set tailormade values on axis (the used font is set by command fontfamily; default '12px Ariel')
  2231.          @ see command "legend" to set a legend for the graph ;<br />use command "fontsize" to adjust size (the font family is non-configurable 'bold your_fontsize px Ariel')
  2232.         */
  2233.             if( js_function[DRAW_YLOGSCALE] == 1 ){canvas_error("only one grid type is allowed...");}
  2234.             if( js_function[DRAW_GRID] != 1 ){ js_function[DRAW_GRID] = 1;}
  2235.             for(i=0;i<4;i++){
  2236.                 switch(i){
  2237.                     case 0:double_data[0] = get_real(infile,0);break;/* xmajor */
  2238.                     case 1:double_data[1] = get_real(infile,0);break;/* ymajor */
  2239.                     case 2:
  2240.                     if( use_axis == TRUE ){
  2241.                         stroke_color = get_color(infile,0);
  2242.                         done = FALSE;
  2243.                         int_data[0] = (int) (get_real(infile,0));/* xminor */
  2244.                         int_data[1] = (int) (get_real(infile,0));/* yminor */
  2245.                         int_data[2] = (int) (get_real(infile,0));/* tic_length */
  2246.                         fill_color = get_color(infile,1); /* used as axis_color*/
  2247.                     }
  2248.                     else
  2249.                     {
  2250.                         int_data[0] = 1;
  2251.                         int_data[1] = 1;
  2252.                         stroke_color = get_color(infile,1);
  2253.                         fill_color = stroke_color;
  2254.                     }
  2255.                     if( double_data[0] <= 0 ||  double_data[1] <= 0 ||  int_data[0] <= 0 ||  int_data[1] <= 0 ){canvas_error("major or minor tickt must be positive !");}
  2256.                     /* set snap_x snap_y values in pixels */
  2257.                     fprintf(js_include_file,"snap_x = %f;snap_y = %f;",double_data[0] / int_data[0],double_data[1] / int_data[1]);
  2258.                     string_length = snprintf(NULL,0,  "draw_grid%d(%d,%d,%.2f,%.*f,%.*f,%d,%d,%d,%d,\"%s\",\"%s\",%d,\"%s\",%d,%d,%d,%.2f,%d,%s,%d,%d,%d,\"%s\",%.2f);\n",canvas_root_id,GRID_CANVAS,precision,stroke_opacity,decimals,double_data[0],decimals,double_data[1],int_data[0],int_data[1],int_data[2],line_width,stroke_color,fill_color,font_size,font_family,use_axis,use_axis_numbering,use_rotate,angle,use_affine,affine_matrix,use_dashed,dashtype[0],dashtype[1],font_color,fill_opacity);
  2259.                     check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  2260.                     snprintf(tmp_buffer,string_length,"draw_grid%d(%d,%d,%.2f,%.*f,%.*f,%d,%d,%d,%d,\"%s\",\"%s\",%d,\"%s\",%d,%d,%d,%.2f,%d,%s,%d,%d,%d,\"%s\",%.2f);\n",canvas_root_id,GRID_CANVAS,precision,stroke_opacity,decimals,double_data[0],decimals,double_data[1],int_data[0],int_data[1],int_data[2],line_width,stroke_color,fill_color,font_size,font_family,use_axis,use_axis_numbering,use_rotate,angle,use_affine,affine_matrix,use_dashed,dashtype[0],dashtype[1],font_color,fill_opacity);
  2261.                     add_to_buffer(tmp_buffer);
  2262.                     break;
  2263.                 }
  2264.             }
  2265.             reset();
  2266.             break;
  2267.         case OPACITY:
  2268.         /*
  2269.         @ opacity 0-255,0-255
  2270.         @
  2271.         */
  2272.             for(i = 0 ; i<2;i++){
  2273.                 switch(i){
  2274.                     case 0: double_data[0]=(int)(get_real(infile,0));break;
  2275.                     case 1: double_data[1]=(int)(get_real(infile,1));break;
  2276.                     default: break;
  2277.                 }
  2278.             }
  2279.             if( double_data[0] < 0 || double_data[0] > 255 || double_data[1] < 0 || double_data[1] > 255  ){ canvas_error("opacity [0 - 255] , [0 - 255]");}/* typo or non-RGB ? */
  2280.             stroke_opacity = (double) (0.0039215*double_data[0]);/* 0.0 - 1.0 */
  2281.             fill_opacity = (double) (0.0039215*double_data[1]);/* 0.0 - 1.0 */
  2282.             break;
  2283.         case ROTATE:
  2284.         /*
  2285.          @rotate rotation_angle
  2286.          @angle in degrees
  2287.         */
  2288.             use_rotate = TRUE;
  2289.             angle = -1*(get_real(infile,1));/* -1 : to be compatible with Flydraw... */
  2290.             break;
  2291.         case KILLAFFINE:
  2292.         /*
  2293.         @ killaffine
  2294.         @ keyword : resets the transformation matrix to 1,0,0,1,0,0
  2295.         */
  2296.             use_affine = FALSE;
  2297.             snprintf(affine_matrix,14,"[1,0,0,1,0,0]");
  2298.             break;
  2299.         case AFFINE:
  2300.         /*
  2301.          @affine a,b,c,d,tx,ty
  2302.          @ defines a transformation matrix for subsequent objects
  2303.          @ use keyword 'killaffine' to end the transformation
  2304.          @ note 1: only 'draggable' / 'noclick' objects can be transformed.
  2305.          @ note 2: do not use 'onclick' or 'drag xy' with tranformation objects : the mouse coordinates do not get transformed (yet)
  2306.          @ note 3: no matrix operations on the transformation matrix implemented (yet)
  2307.          @ a : Scales the drawings horizontally
  2308.          @ b : Skews the drawings horizontally
  2309.          @ c : Skews the drawings vertically
  2310.          @ d : Scales the drawings vertically
  2311.          @ tx: Moves the drawings horizontally in xrange coordinate system
  2312.          @ ty: Moves the drawings vertically in yrange coordinate system
  2313.          @ the data precision is 2 decimals (printf : %2.f)
  2314.         */
  2315.             for(i = 0 ; i<6;i++){
  2316.                 switch(i){
  2317.                     case 0: double_data[0] = get_real(infile,0);break;
  2318.                     case 1: double_data[1] = get_real(infile,0);break;
  2319.                     case 2: double_data[2] = get_real(infile,0);break;
  2320.                     case 3: double_data[3] = get_real(infile,0);break;
  2321.                     case 4: double_data[4] = get_real(infile,0);break;
  2322.                     case 5: double_data[5] = get_real(infile,1);
  2323.                         use_affine = TRUE;
  2324.                         string_length = snprintf(NULL,0,     "[%.2f,%.2f,%.2f,%.2f,%.2f,%.2f] ",double_data[0],double_data[1],double_data[2],double_data[3],double_data[4]*xsize/(xmax - xmin),-1*double_data[5]*ysize/(ymax - ymin));
  2325.                         check_string_length(string_length);affine_matrix = my_newmem(string_length+1);
  2326.                         snprintf(affine_matrix,string_length,"[%.2f,%.2f,%.2f,%.2f,%.2f,%.2f] ",double_data[0],double_data[1],double_data[2],double_data[3],double_data[4]*xsize/(xmax - xmin),-1*double_data[5]*ysize/(ymax - ymin));
  2327.                         break;
  2328.                     default: break;
  2329.                 }
  2330.             }
  2331.         break;
  2332.         case KILLTRANSLATION:
  2333.         /*
  2334.          killtranslation
  2335.         */
  2336.             use_affine = FALSE;
  2337.             snprintf(affine_matrix,14,"[1,0,0,1,0,0]");
  2338.             break;
  2339.         case TRANSLATION:
  2340.         /*
  2341.          @translation tx,ty
  2342.          @will translate the next object tx in xrange and ty in yrange
  2343.          @uase command 'killtranstation' to end the command
  2344.         */
  2345.             for(i = 0 ; i<2;i++){
  2346.                 switch(i){
  2347.                     case 0: double_data[0] = get_real(infile,0);break;
  2348.                     case 1: double_data[1] = get_real(infile,1);
  2349.                         use_affine = TRUE;
  2350.                         string_length = snprintf(NULL,0, "[1,0,0,1,%.2f,%.2f] ",double_data[0]*xsize/(xmax - xmin),-1*double_data[1]*ysize/(ymax - ymin));
  2351.                         check_string_length(string_length);affine_matrix = my_newmem(string_length+1);
  2352.                         snprintf(affine_matrix,string_length,"[1,0,0,1,%.2f,%.2f] ",double_data[0]*xsize/(xmax - xmin),-1*double_data[1]*ysize/(ymax - ymin));
  2353.                         break;
  2354.                     default: break;
  2355.                 }
  2356.             }
  2357.         break;
  2358.  
  2359.         case DASHED:
  2360.         /*
  2361.         @ keyword "dashed"
  2362.         @ next object will be drawn with a dashed line
  2363.         @ change dashing scheme by using command "dashtype int,int)
  2364.         */
  2365.             use_dashed = TRUE;
  2366.             break;
  2367.         case FILLED:
  2368.         /*
  2369.         @ keyword "filled"
  2370.         @ the next 'fillable' object (only) will be filled
  2371.         @ use command "fillcolor color" to set fillcolor
  2372.         @ use command "opacity 0-255,0-255" to set stroke and fill-opacity
  2373.         @ use command "fill x,y,color" or "floodfill x,y,color" to fill the space around (x;y) with color <br />pixel operation implemented in javascript: use with care !
  2374.         */
  2375.             use_filled = TRUE;
  2376.             break;
  2377.         case STYLE:
  2378.         /*
  2379.          @highlight color,opacity,linewidth
  2380.          @ NOT IMPLEMENTED
  2381.          @ use command "onclick" : when the object receives a userclick it will increase it's linewidth
  2382.         */
  2383.             break;
  2384.         case FILLCOLOR:
  2385.         /*
  2386.         @ fillcolor colorname or #hex
  2387.         @ Set the color for a filled object : mainly used for command 'userdraw obj,stroke_color'
  2388.         @ All fillable massive object will have a fillcolor == strokecolor (just to be compatible with flydraw...)
  2389.         */
  2390.             fill_color = get_color(infile,1);
  2391.             break;
  2392.         case STROKECOLOR:
  2393.         /*
  2394.         @ strokecolor colorname or #hex
  2395.         @ to be used for commands that do not supply a color argument (like command 'linegraph')
  2396.         */
  2397.             stroke_color = get_color(infile,1);
  2398.             break;
  2399.         case BGIMAGE:
  2400.         /*
  2401.          @bgimage image_location
  2402.          @use an image as background .<br />(we use the background of 'canvas_div' )
  2403.          @the background image will be resized to match "width = xsize" and "height = ysize"
  2404.         */
  2405.         URL = get_string(infile,1);
  2406.         fprintf(js_include_file,"<!-- set background image to canvas div -->\ncanvas_div.style.backgroundImage = \"url(%s)\";canvas_div.style.backgroundSize = \"%dpx %dpx\";\n",URL,xsize,ysize);
  2407.             break;
  2408.         case BGCOLOR:
  2409.         /*
  2410.          @bgcolor colorname or #hex
  2411.          @use this color as background of the "div" containing the canvas(es)
  2412.         */
  2413.         /* [255,255,255]*/
  2414.             bgcolor = get_string(infile,1);
  2415.             if(strstr(bgcolor,"#") == NULL){ /* convert colorname -> #ff00ff */
  2416.                 int found = 0;
  2417.                 for( i = 0; i < NUMBER_OF_COLORNAMES ; i++ ){
  2418.                     if( strcmp( colors[i].name , bgcolor ) == 0 ){
  2419.                         bgcolor = colors[i].hex;
  2420.                         found = 1;
  2421.                         break;
  2422.                     }
  2423.                 }
  2424.                 if(found == 0){canvas_error("your bgcolor is not in my rgb.txt data list : use hexcolor...something like #a0ffc4");}
  2425.             }
  2426.             fprintf(js_include_file,"<!-- set background color of canvas div -->\ncanvas_div.style.backgroundColor = \"%s\";canvas_div.style.opacity = %f;\n",bgcolor,fill_opacity);
  2427.             break;
  2428.         case COPY:
  2429.         /*
  2430.         @ copy x,y,x1,y1,x2,y2,[filename URL]
  2431.         @ Insert the region from (x1,y1) to (x2,y2) (in pixels) of [filename] to (x,y) in x/y-range
  2432.         @ If x1=y1=x2=y2=-1, the whole [filename URL] is copied.
  2433.         @ [filename] is the URL of the image
  2434.         @ URL is normal URL of network reachable image file location<br />(eg special url for 'classexo' not -yet- implemented)
  2435.         @ if command 'drag x/y/xy' is set before command 'copy', the images will be draggable<br />javascript function read_canvas(); will return the x/y coordinate data in xrange/yrange of all -including non draggable- images<br />the command drag is only valuid for the next image<br />draggable / non-draggable images may be mixed
  2436.         @ if you want to draw / userdraw  on an "imported" image, make sure it is transparent.<br />for example GNUPlot: set terminal gif transparent
  2437.  
  2438.         context.drawImage(img,sx,sy,swidth,sheight,x,y,width,height);
  2439.         draw_external_image(canvas_type,URL,sx,sy,swidth,sheight,x,y,width,height,drag_drop){
  2440.         */
  2441.             for(i = 0 ; i<7;i++){
  2442.                 switch(i){
  2443.                     case 0: int_data[0]=x2px(get_real(infile,0));break; /* x left top corner in x/y range  */
  2444.                     case 1: int_data[1]=y2px(get_real(infile,0));break; /* y left top corner in x/y range */
  2445.                     case 2: int_data[2]=(int)(get_real(infile,0));break;/* x1 in px of external image */
  2446.                     case 3: int_data[3]=(int)(get_real(infile,0));break;/* y1 in px of external image */
  2447.                     case 4: int_data[4]=(int)(get_real(infile,0));break;/* x2 --> width  */
  2448.                     case 5: int_data[5]=(int)(get_real(infile,0)) ;break;/* y2 --> height */
  2449.                     case 6: URL = get_string(infile,1);
  2450.                             int_data[6] = int_data[4] - int_data[2];/* swidth & width (if not scaling )*/
  2451.                             int_data[7] = int_data[5] - int_data[3];/* sheight & height (if not scaling )*/
  2452.                             if( drag_type > -1 ){
  2453.                                 if( js_function[DRAG_EXTERNAL_IMAGE] != 1 ){ js_function[DRAG_EXTERNAL_IMAGE] = 1;}
  2454.                                 if(reply_format == 0 ){reply_format = 20;}
  2455.                                 string_length = snprintf(NULL,0,"drag_external_image(\"%s\",%d,%d,%d,%d,%d,%d,%d,%d,%d,%d);\n",URL,int_data[2],int_data[3],int_data[6],int_data[7],int_data[0],int_data[1],int_data[6],int_data[7],ext_img_cnt,1);
  2456.                                 check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  2457.                                 snprintf(tmp_buffer,string_length,"drag_external_image(\"%s\",%d,%d,%d,%d,%d,%d,%d,%d,%d,%d);\n",URL,int_data[2],int_data[3],int_data[6],int_data[7],int_data[0],int_data[1],int_data[6],int_data[7],ext_img_cnt,1);
  2458.                                 drag_type = -1;
  2459.                                 ext_img_cnt++;
  2460.                             }
  2461.                             else
  2462.                             {
  2463.                                 if( js_function[DRAW_EXTERNAL_IMAGE] != 1 ){ js_function[DRAW_EXTERNAL_IMAGE] = 1;}
  2464.                                 /*
  2465.                                 draw_external_image = function(URL,sx,sy,swidth,sheight,x0,y0,width,height,draggable){\n\
  2466.                                 */
  2467.                                 string_length = snprintf(NULL,0,"draw_external_image(\"%s\",%d,%d,%d,%d,%d,%d,%d,%d,0);\n",URL,int_data[2],int_data[3],int_data[6],int_data[7],int_data[0],int_data[1],int_data[6],int_data[7]);
  2468.                                 check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  2469.                                 snprintf(tmp_buffer,string_length,"draw_external_image(\"%s\",%d,%d,%d,%d,%d,%d,%d,%d,0);\n",URL,int_data[2],int_data[3],int_data[6],int_data[7],int_data[0],int_data[1],int_data[6],int_data[7]);
  2470.                             }
  2471.                             add_to_buffer(tmp_buffer);
  2472.                             break;
  2473.                     default: break;
  2474.                 }
  2475.             }
  2476.             reset();
  2477.             break;
  2478. /*
  2479. context.drawImage(img,sx,sy,swidth,sheight,x,y,width,height);
  2480. img     Specifies the image, canvas, or video element to use
  2481. sx      The x coordinate where to start clipping : x1 = int_data[0]
  2482. sy      The y coordinate where to start clipping : x2 = int_data[1]
  2483. swidth  The width of the clipped image : int_data[2] - int_data[0]
  2484. sheight The height of the clipped image : int_data[3] - int_data[1]
  2485. x       The x coordinate where to place the image on the canvas : dx1 = int_data[4]
  2486. y       The y coordinate where to place the image on the canvas : dy1 = int_data[5]
  2487. width   The width of the image to use (stretch or reduce the image) : dx2 - dx1 = int_data[6]
  2488. height  The height of the image to use (stretch or reduce the image) : dy2 - dy1 = int_data[7]
  2489. */
  2490.         case COPYRESIZED:
  2491.         /*
  2492.         @ copyresized x1,y2,x2,y2,dx1,dy1,dx2,dy2,image_file_url
  2493.         @ Insert the region from (x1,y1) to (x2,y2) (in pixels) of [ filename], <br />possibly resized,<br />to the region of (dx1,dy1) to (dx2,dy2) in x/y-range
  2494.         @ If x1=y1=x2=y2=-1, the whole [filename / URL ] is copied and resized.
  2495.         @ URL is normal URL of network reachable image file location<br />(eg special url for 'classexo' not -yet- implemented)
  2496.         @ if command 'drag x/y/xy' is set before command 'copy', the images will be draggable<br />javascript function read_canvas(); will return the x/y coordinate data in xrange/yrange of all -including non draggable- images<br />the command drag is only valuid for the next image<br />draggable / non-draggable images may be mixed
  2497.         @ if you want to draw / userdraw  on an "imported" image, make sure it is transparent.<br />for example GNUPlot: set terminal gif transparent
  2498.         */
  2499.             for(i = 0 ; i<9;i++){
  2500.                 switch(i){
  2501.                     case 0: int_data[0] = (int)(get_real(infile,0));break; /* x1 */
  2502.                     case 1: int_data[1] = (int)(get_real(infile,0));break; /* y1 */
  2503.                     case 2: int_data[2] = (int)(get_real(infile,0));break;/* x2 */
  2504.                     case 3: int_data[3] = (int)(get_real(infile,0));break;/* y2 */
  2505.                     case 4: int_data[4] = x2px(get_real(infile,0));break;/* dx1 */
  2506.                     case 5: int_data[5] = y2px(get_real(infile,0));break;/* dy1 */
  2507.                     case 6: int_data[6] = x2px(get_real(infile,0));break;/* dx2 */
  2508.                     case 7: int_data[7] = y2px(get_real(infile,0));break;/* dy2 */
  2509.                     case 8: URL = get_string(infile,1);
  2510.                             if( drag_type > -1 ){
  2511.                                 if( js_function[DRAG_EXTERNAL_IMAGE] != 1 ){ js_function[DRAG_EXTERNAL_IMAGE] = 1;}
  2512.                                 if(reply_format == 0 ){reply_format = 20;}
  2513.                                 string_length = snprintf(NULL,0,"drag_external_image(\"%s\",%d,%d,%d,%d,%d,%d,%d,%d,%d,%d);\n",URL,int_data[0],int_data[1],int_data[2],int_data[3],int_data[4],int_data[5],int_data[6],int_data[7],ext_img_cnt,1);
  2514.                                 check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  2515.                                 snprintf(tmp_buffer,string_length,"drag_external_image(\"%s\",%d,%d,%d,%d,%d,%d,%d,%d,%d,%d);\n",URL,int_data[0],int_data[1],int_data[2],int_data[3],int_data[4],int_data[5],int_data[6],int_data[7],ext_img_cnt,1);
  2516.                                 drag_type = -1;
  2517.                                 ext_img_cnt++;
  2518.                             }
  2519.                             else
  2520.                             {
  2521.                                 if( js_function[DRAW_EXTERNAL_IMAGE] != 1 ){ js_function[DRAW_EXTERNAL_IMAGE] = 1;}
  2522.                                 string_length = snprintf(NULL,0,"draw_external_image(\"%s\",%d,%d,%d,%d,%d,%d,%d,%d,0);\n",URL,int_data[0],int_data[1],int_data[2],int_data[3],int_data[4],int_data[5],int_data[6],int_data[7]);
  2523.                                 check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  2524.                                 snprintf(tmp_buffer,string_length,"draw_external_image(\"%s\",%d,%d,%d,%d,%d,%d,%d,%d,0);\n",URL,int_data[0],int_data[1],int_data[2],int_data[3],int_data[4],int_data[5],int_data[6],int_data[7]);
  2525.                             }
  2526.                             add_to_buffer(tmp_buffer);
  2527.                     default: break;
  2528.                 }
  2529.             }
  2530.             reset();
  2531.             break;
  2532.         case CLEARBUTTON:
  2533.         /*
  2534.          @clearbutton value
  2535.          @adds a button to clear the userdraw canvas with text 'value'
  2536.          @normally userdraw primitives have the option to use middle/right mouse button on<br /> a point of the object to remove this specific object...this clear button will remove all drawings
  2537.          @uses the tooltip placeholder div element: may not be used with command 'intooltip'
  2538.          @use command 'inputstyle' to style the button...
  2539.         */
  2540.             add_clear_button(js_include_file,canvas_root_id,input_style,get_string(infile,1));
  2541.         break;
  2542.         case INPUTSTYLE:
  2543.         /*
  2544.         @ inputstyle style_description
  2545.         @ example: inputstyle color:blue;font-weight:bold;font-style:italic;font-size:16pt
  2546.         */
  2547.             input_style = get_string(infile,1);
  2548.             break;
  2549.         case INPUT:
  2550.         /*
  2551.          @ input x,y,size,editable,value
  2552.          @ to set inputfield "readonly", use editable = 0
  2553.          @ only active inputfields (editable = 1) will be read with read_canvas();
  2554.          @ if "$status=done"  (e.g. in answer.phtml) the inputfield will be clearedand set readonly<br />Override this by keyword 'status'
  2555.          @ may be further controlled by "inputstyle" (inputcss is not yet implemented...)
  2556.          @ if mathml inputfields are present and / or some userdraw is performed, these data will NOT be send as well (javascript:read_canvas();)
  2557.         */
  2558.         if( js_function[DRAW_INPUTS] != 1 ){ js_function[DRAW_INPUTS] = 1;}
  2559.             for(i = 0 ; i<5;i++){
  2560.                 switch(i){
  2561.                     case 0: int_data[0]=x2px(get_real(infile,0));break;/* x in px */
  2562.                     case 1: int_data[1]=y2px(get_real(infile,0));break;/* y in px */
  2563.                     case 2: int_data[2]=abs( (int)(get_real(infile,0)));break; /* size */
  2564.                     case 3: if( get_real(infile,1) >0){int_data[3] = 1;}else{int_data[3] = 0;};break; /* readonly */
  2565.                     case 4:
  2566.                             temp = get_string_argument(infile,1);
  2567.                             string_length = snprintf(NULL,0,  "draw_inputs(%d,%d,%d,%d,%d,%d,\"%s\",\"%s\");\n",canvas_root_id,input_cnt,int_data[0],int_data[1],int_data[2],int_data[3],input_style,temp);
  2568.                             check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  2569.                             snprintf(tmp_buffer,string_length,"draw_inputs(%d,%d,%d,%d,%d,%d,\"%s\",\"%s\");\n",canvas_root_id,input_cnt,int_data[0],int_data[1],int_data[2],int_data[3],input_style,temp);
  2570.                             add_to_buffer(tmp_buffer);
  2571.                             input_cnt++;break;
  2572.                     default: break;
  2573.                 }
  2574.             }
  2575.             if(reply_format == 0 ){reply_format = 15;}
  2576.             reset();
  2577.             break;
  2578.         case TEXTAREA:
  2579.         /*
  2580.          @ textarea x,y,cols,rows,readonly,value
  2581.          @ may be further controlled by "inputstyle"
  2582.          @ if "$status=done"  (e.g. in answer.phtml) the inputfield will be clearedand set readonly<br />Override this by keyword 'status'
  2583.          @ if mathml inputfields are present and / or some userdraw is performed, these data will NOT be send as well (javascript:read_canvas();)
  2584.         */
  2585.             if( js_function[DRAW_TEXTAREAS] != 1 ){ js_function[DRAW_TEXTAREAS] = 1;}
  2586.             for(i = 0 ; i<6;i++){
  2587.                 switch(i){
  2588.                     case 0: int_data[0]=x2px(get_real(infile,0));break; /* x in px */
  2589.                     case 1: int_data[1]=y2px(get_real(infile,0));break; /* y in px */
  2590.                     case 2: int_data[2]=abs( (int)(get_real(infile,0)));break;/* cols */
  2591.                     case 3: int_data[3]=abs( (int)(get_real(infile,0)));break;/* rows */
  2592.                     case 4: if( get_real(infile,1) >0){int_data[4] = 1;}else{int_data[3] = 0;};break; /* readonly */
  2593.                     case 5: temp = get_string_argument(infile,1);
  2594.                             string_length = snprintf(NULL,0,  "draw_textareas(%d,%d,%d,%d,%d,%d,%d,\"%s\",\"%s\");\n",canvas_root_id,input_cnt,int_data[0],int_data[1],int_data[2],int_data[3],int_data[4],input_style,temp);
  2595.                             check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  2596.                             snprintf(tmp_buffer,string_length,"draw_textareas(%d,%d,%d,%d,%d,%d,%d,\"%s\",\"%s\");\n",canvas_root_id,input_cnt,int_data[0],int_data[1],int_data[2],int_data[3],int_data[4],input_style,temp);
  2597.                             add_to_buffer(tmp_buffer);
  2598.                             input_cnt++;break;
  2599.                     default: break;
  2600.                 }
  2601.             }
  2602.             if(reply_format == 0 ){reply_format = 15;}
  2603.             reset();
  2604.             break;
  2605.         case MOUSE_PRECISION:
  2606.         /*
  2607.             @ precision int
  2608.             @ 1 = no decimals ; 10 = 1 decimal ; 100 = 2 decimals etc
  2609.             @ may be used / changed before every object
  2610.             @ In case of user interaction (like 'userdraw') this value will be used to determine the amount of decimals in the reply / answer
  2611.         */
  2612.             precision = (int) (get_real(infile,1));
  2613.             if(precision < 1 ){precision = 1;};
  2614.             break;
  2615.         case SETLIMITS:
  2616.         /*
  2617.             @setlimits
  2618.             @keyword : if set, it will produce 4 inputfields for 'xmin,xmax,ymin,ymax' and an 'ok' button
  2619.             @may be used for inputfield based zooming / panning
  2620.             @use command xlabel / ylabel to change text from xmin to 'xlabel'min etc
  2621.             @note:the input value will not be checked on validity
  2622.         */
  2623.             if( use_safe_eval == FALSE){use_safe_eval = TRUE;add_safe_eval(js_include_file);} /* just once */
  2624.             add_setlimits(js_include_file,canvas_root_id);
  2625.             /* add_setlimits provides 'fprintf(js_include_file,"use_pan_and_zoom = 1;");' */
  2626.             use_pan_and_zoom = TRUE;
  2627.             done = TRUE;
  2628.             break;
  2629.         case ZOOM:
  2630.         /*
  2631.          @ zoom button_color
  2632.          @ introduce a controlpanel at the lower right corner
  2633.          @ giving six 15x15pixel 'active' rectangle areas<br />(for x,leftarrow,rightarrow,uparrow,downarrow and a '-' and a '+' sign ) for zooming and/or panning of the image
  2634.          @ the 'x' symbol will do a 'location.reload' of the page, and thus reset all canvas drawings.
  2635.          @ choose an appropriate colour, so the small 'x,arrows,-,+' are clearly visible
  2636.          @ command 'opacity' may be used to set stroke_opacity of 'buttons
  2637.          @ NOTE: use command 'zoom' at the end of your script code (the same is true for commanmd 'mouse')
  2638.          @ NOTE: only objects that may be set draggable / clickable will be zoomed / panned
  2639.          @ NOTE: when an object is dragged, zooming / panning will cause the coordinates to be reset to the original position :( <br />e.g. dragging / panning will get lost. (array with 'drag data' is erased)<br />This is a design flaw and not a feature !!
  2640.         */
  2641.             fprintf(js_include_file,"use_pan_and_zoom = 1;");
  2642.             use_pan_and_zoom = TRUE;
  2643.             stroke_color = get_color(infile,1);
  2644.             /* we use BG_CANVAS (0) */
  2645.             add_zoom_buttons(js_include_file,canvas_root_id,stroke_color,stroke_opacity);
  2646.             done = TRUE;
  2647.             break;
  2648.         case ONCLICK:
  2649.         /*
  2650.          @ onclick
  2651.          @ keyword, no arguments
  2652.          @ if the next object is clicked, it's 'object sequence number' in fly script is returned <br /> by javascript:read_canvas();
  2653.          @ Line based object will show an increase in linewidth<br />Font based objects will show the text in 'bold' when clicked.
  2654.          @ NOTE: not all objects may be set clickable
  2655.         */
  2656.             fprintf(js_include_file,"use_dragdrop_reply = true;");
  2657.             onclick = 1;
  2658.             break;
  2659.         case DRAG:
  2660.         /*
  2661.          @ drag [x][y][xy]
  2662.          @ the next object will be draggable in x / y / xy direction
  2663.          @ the displacement can be read by 'javascript:read_dragdrop();'
  2664.          @ the precision (default 2 decimals) in the student reply may be set with command 'precision'.<br />Use this 'precision' command before this command 'drag x|y|xy' !
  2665.          @ the answer is  : object_number : Xorg : Yorg : Xnew : Ynew<br />wherein object_number is the place of the draggable object in your script.<br />Only draggable object will have an object_number (e.g things like point,crosshair,line,segment,circle,rect,triangle...etc)
  2666.          @ use keywordd 'snaptogrid' , 'xsnaptogrid' or 'ysnaptogrid' to switch from free to discrete movement
  2667.          @ in case of external images (commands copy / copyresized) the external image can be set draggable ; always xy. <br />The function javascript;read_canvas() will return the xy-coordinates of all images.
  2668.          @ NOTE: in case an object is dragged , zooming or panning will cause the coordinates to be reset to the original position :( <br />e.g. dragging / panning will get lost. (array with 'drag data' is erased)<br />This is a design flaw and not a feature !!
  2669.         */
  2670.             temp = get_string(infile,1);
  2671.             if(strstr(temp,"xy") != NULL ){
  2672.                 drag_type = 0;
  2673.             }
  2674.             else
  2675.             {
  2676.                 if(strstr(temp,"x") != NULL ){
  2677.                     drag_type = 1;
  2678.                 }
  2679.                 else
  2680.                 {
  2681.                     drag_type = 2;
  2682.                 }
  2683.             }
  2684.             fprintf(js_include_file,"dragdrop_precision = %d;use_dragdrop_reply = true;",precision);
  2685.             onclick = 2;
  2686.        
  2687.             /* if(use_userdraw == TRUE ){canvas_error("\"drag & drop\" may not be combined with \"userdraw\" or \"pan and zoom\" \n");} */
  2688.             break;
  2689.         case BLINK:
  2690.         /*
  2691.          @ blink time(seconds)
  2692.          @ NOT IMPLEMETED -YET
  2693.         */
  2694.             break;
  2695.         case XUNIT:
  2696.         /*
  2697.          @ xunit some_unit_for_x-values
  2698.          @ unicode allowed (no html code)
  2699.          @ use together with command mousex
  2700.          @ will display the cursor x-coordinate 'unit'
  2701.         */
  2702.             fprintf(js_include_file,"unit_x = \"%s\";",get_string(infile,1));
  2703.             break;
  2704.         case YUNIT:
  2705.         /*
  2706.          @ yunit some_unit_for_y-values
  2707.          @ unicode allowed (no html code)
  2708.          @ use together with command mousex
  2709.          @ will display the cursor y-coordinate 'unit'
  2710.         */
  2711.             fprintf(js_include_file,"unit_y = \"%s\";",get_string(infile,1));
  2712.             break;
  2713.         case MOUSE_DISPLAY:
  2714.         /*
  2715.          @display x|y|xy|degree|radius,color,fontsize
  2716.          @will display the mouse cursor coordinates as x-only,y-only,(x:y),<br />the radius of a circle (this only in case 'userdraw circle(s),color' !!<br />or the angle in degrees ( rhe angle between x-axis;(0:0);(x:y)
  2717.          @use commands 'xunit' and / or 'yunit' to add the units to the mouse values
  2718.          @just like commands 'mouse','mousex','mousey','mouse_degree'...only other name)
  2719.         */
  2720.         temp = get_string_argument(infile,0);
  2721.         if( strstr(temp,"xy") != NULL ){
  2722.             int_data[0] = 2;
  2723.         }else{
  2724.             if( strstr(temp,"y") != NULL ){
  2725.                 int_data[0] = 1;
  2726.             }else{
  2727.                 if( strstr(temp,"x") != NULL ){
  2728.                     int_data[0] = 0;
  2729.                 }else{
  2730.                     if(strstr(temp,"degree") != NULL){
  2731.                         int_data[0] = 3;
  2732.                     }else{
  2733.                         if(strstr(temp,"radius") != NULL){
  2734.                             int_data[0] = 4;
  2735.                         }else{
  2736.                             int_data[0] = 2;
  2737.                         }
  2738.                     }
  2739.                 }
  2740.             }
  2741.         }
  2742.         stroke_color = get_color(infile,0);
  2743.         font_size = (int) (get_real(infile,1));
  2744.         tmp_buffer = my_newmem(26);
  2745.         snprintf(tmp_buffer,25,"use_mouse_coordinates();\n");add_to_buffer(tmp_buffer);
  2746.         add_js_mouse(js_include_file,MOUSE_CANVAS,canvas_root_id,precision,stroke_color,font_size,stroke_opacity,int_data[0]);
  2747.         break;
  2748.         case MOUSE_DEGREE:
  2749.         /*
  2750.          @ mouse_degree color,fontsize
  2751.          @ will display the angle in degrees between x-axis, (0:0) and the cursor (x:y) in 'color' and 'font size'<br /> using default fontfamily Ariel
  2752.          @ The angle is positive in QI and QIII and the angle value is negative in QII and QIV
  2753.          @ NOTE: use command 'mouse' at the end of your script code (the same is true for command 'zoom')
  2754.  
  2755.         */
  2756.             stroke_color = get_color(infile,0);
  2757.             font_size = (int) (get_real(infile,1));
  2758.             tmp_buffer = my_newmem(26);
  2759.             snprintf(tmp_buffer,25,"use_mouse_coordinates();\n");add_to_buffer(tmp_buffer);
  2760.             add_js_mouse(js_include_file,MOUSE_CANVAS,canvas_root_id,precision,stroke_color,font_size,stroke_opacity,3);
  2761.             break;
  2762.         case MOUSEX:
  2763.         /*
  2764.          @ mousex color,fontsize
  2765.          @ will display the cursor x-coordinate in 'color' and 'font size'<br /> using default fontfamily Ariel
  2766.          @ NOTE: use command 'mouse' at the end of your script code (the same is true for command 'zoom')
  2767.  
  2768.         */
  2769.             stroke_color = get_color(infile,0);
  2770.             font_size = (int) (get_real(infile,1));
  2771.             tmp_buffer = my_newmem(26);
  2772.             snprintf(tmp_buffer,25,"use_mouse_coordinates();\n");add_to_buffer(tmp_buffer);
  2773.             add_js_mouse(js_include_file,MOUSE_CANVAS,canvas_root_id,precision,stroke_color,font_size,stroke_opacity,0);
  2774.             break;
  2775.         case MOUSEY:
  2776.         /*
  2777.          @ mousey color,fontsize
  2778.          @ will display the cursor y-coordinate in 'color' and 'font size'<br /> using default fontfamily Ariel
  2779.          @ NOTE: use command 'mouse' at the end of your script code (the same is true for command 'zoom')
  2780.  
  2781.         */
  2782.             stroke_color = get_color(infile,0);
  2783.             font_size = (int) (get_real(infile,1));
  2784.             tmp_buffer = my_newmem(26);
  2785.             snprintf(tmp_buffer,25,"use_mouse_coordinates();\n");add_to_buffer(tmp_buffer);
  2786.             add_js_mouse(js_include_file,MOUSE_CANVAS,canvas_root_id,precision,stroke_color,font_size,stroke_opacity,1);
  2787.             break;
  2788.         case MOUSE:
  2789.         /*
  2790.          @ mouse color,fontsize
  2791.          @ will display the cursor (x:y) coordinates  in 'color' and 'font size'<br /> using default fontfamily Ariel
  2792.          @ NOTE: use command 'mouse' at the end of your script code (the same is true for commanmd 'zoom')
  2793.  
  2794.         */
  2795.             stroke_color = get_color(infile,0);
  2796.             font_size = (int) (get_real(infile,1));
  2797.             tmp_buffer = my_newmem(26);
  2798.             snprintf(tmp_buffer,25,"use_mouse_coordinates();\n");add_to_buffer(tmp_buffer);
  2799.             add_js_mouse(js_include_file,MOUSE_CANVAS,canvas_root_id,precision,stroke_color,font_size,stroke_opacity,2);
  2800.             break;
  2801.         case INTOOLTIP:
  2802.             /*
  2803.             @ intooltip link_text
  2804.             @ link_text is a single line (span-element)
  2805.             @ link_text may also be an image URL http://some_server/images/my_image.png
  2806.             @ link_text may contain HTML markup
  2807.             @ the canvas will be displayed in a tooltip on 'link_text'
  2808.             @ the canvas is default transparent: use command 'bgcolor color' to adjust background-color<br />the link test will alos be shown with this bgcolor.
  2809.             */
  2810.             if(use_input_xy != FALSE ){canvas_error("intooltip can not be combined with userinput_xy command");}
  2811.             use_tooltip = TRUE;
  2812.             tooltip_text = get_string(infile,1);
  2813.             if(strstr(tooltip_text,"\"") != 0 ){ tooltip_text = str_replace(tooltip_text,"\"","'"); }
  2814.             break;
  2815.         case AUDIO:
  2816.         /*
  2817.         @ audio x,y,w,h,loop,visible,audiofile location
  2818.         @ x,y : left top corner of audio element (in xrange / yrange)
  2819.         @ w,y : width and height in pixels
  2820.         @ loop : 0 or 1 ( 1 = loop audio fragment)
  2821.         @ visible : 0 or 1 (1 = show controls)
  2822.         @ audio format may be in *.mp3 or *.ogg
  2823.         @ If you are using *.mp3 : be aware that FireFox will not (never) play this ! (Pattented format)
  2824.         @ if you are using *.ogg : be aware that Microsoft based systems not support it natively
  2825.         @ To avoid problems supply both types (mp3 and ogg) of audiofiles.<br />the program will use both as source tag
  2826.         @ example: upload both audio1.ogg and audio1.mp3 to http://server/files/<br />audio 0,0,http://server/files/audio1.mp3<br />svdraw will copy html-tag audio1.mp3 to audio1.ogg<br /> and the browser will play the compatible file (audio1.ogg or audio1.mp3)<br />
  2827.         */
  2828.             if( js_function[DRAW_AUDIO] != 1 ){ js_function[DRAW_AUDIO] = 1;}
  2829.             for(i=0;i<7;i++){
  2830.                 switch(i){
  2831.                     case 0: int_data[0] = x2px(get_real(infile,0)); break; /* x in x/y-range coord system -> pixel */
  2832.                     case 1: int_data[1] = y2px(get_real(infile,0)); break; /* y in x/y-range coord system  -> pixel */
  2833.                     case 2: int_data[2] = (int) (get_real(infile,0)); break; /* pixel width */
  2834.                     case 3: int_data[3] = (int) (get_real(infile,0)); break; /* height pixel height */
  2835.                     case 4: int_data[4] = (int) (get_real(infile,0)); if(int_data[4] != TRUE){int_data[4] = FALSE;} break; /* loop boolean */
  2836.                     case 5: int_data[5] = (int) (get_real(infile,0)); if(int_data[5] != TRUE){int_data[5] = FALSE;} break; /* visible boolean */
  2837.                     case 6:
  2838.                     temp = get_string(infile,1);
  2839.                     if( strstr(temp,".mp3") != 0 ){ temp = str_replace(temp,".mp3","");}
  2840.                     if( strstr(temp,".ogg") != 0 ){ temp = str_replace(temp,".ogg","");}
  2841.                     string_length = snprintf(NULL,0,  "draw_audio(%d,%d,%d,%d,%d,%d,%d,\"%s.ogg\",\"%s.mp3\");\n",canvas_root_id,int_data[0],int_data[1],int_data[2],int_data[3],int_data[4],int_data[5],temp,temp);
  2842.                     check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  2843.                     snprintf(tmp_buffer,string_length,"draw_audio(%d,%d,%d,%d,%d,%d,%d,\"%s.ogg\",\"%s.mp3\");\n",canvas_root_id,int_data[0],int_data[1],int_data[2],int_data[3],int_data[4],int_data[5],temp,temp);
  2844.                     add_to_buffer(tmp_buffer);
  2845.                     break;
  2846.                     default:break;
  2847.                 }
  2848.             }
  2849.             reset();
  2850.             break;
  2851.         case VIDEO:
  2852.         /*
  2853.         @ video x,y,w,h,videofile location
  2854.         @ x,y : left top corner of audio element (in xrange / yrange)
  2855.         @ w,y : width and height in pixels
  2856.         @ example:<br />wims getfile : video 0,0,120,120,myvideo.mp4
  2857.         @ video format may be in *.mp4 (todo:other formats)
  2858.         */
  2859.             if( js_function[DRAW_VIDEO] != 1 ){ js_function[DRAW_VIDEO] = 1;}
  2860.             for(i=0;i<5;i++){
  2861.                 switch(i){
  2862.                     case 0: int_data[0] = x2px(get_real(infile,0)); break; /* x in x/y-range coord system -> pixel */
  2863.                     case 1: int_data[1] = y2px(get_real(infile,0)); break; /* y in x/y-range coord system  -> pixel */
  2864.                     case 2: int_data[2] = (int) (get_real(infile,0)); break; /* pixel width */
  2865.                     case 3: int_data[3] = (int) (get_real(infile,0)); break; /* height pixel height */
  2866.                     case 4: temp = get_string(infile,1);
  2867.                             string_length = snprintf(NULL,0,  "draw_video(%d,%d,%d,%d,%d,\"%s\");\n",canvas_root_id,int_data[0],int_data[1],int_data[2],int_data[3],temp);
  2868.                             check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  2869.                             snprintf(tmp_buffer,string_length,"draw_video(%d,%d,%d,%d,%d,\"%s\");\n",canvas_root_id,int_data[0],int_data[1],int_data[2],int_data[3],temp);
  2870.                             add_to_buffer(tmp_buffer);
  2871.                             break;
  2872.                     default:break;
  2873.                 }
  2874.             }
  2875.             reset();
  2876.             break;
  2877.         case HATCHFILL:
  2878.         /*
  2879.         @ hatchfill x0,y0,dx,dy,color
  2880.         @ x0,y0 in xrange / yrange
  2881.         @ distances dx,dy in pixels
  2882.         */
  2883.             if( js_function[DRAW_HATCHFILL] != 1 ){ js_function[DRAW_HATCHFILL] = 1;}
  2884.             for(i=0;i<5;i++){
  2885.                 switch(i){
  2886.                     case 0: int_data[0] = x2px(get_real(infile,0)); break; /* x */
  2887.                     case 1: int_data[1] = y2px(get_real(infile,0)); break; /* y  */
  2888.                     case 2: int_data[2] = (int) (get_real(infile,0)); break; /* dx pixel */
  2889.                     case 3: int_data[3] = (int) (get_real(infile,0)); break; /* dy pixel*/
  2890.                     case 4: stroke_color = get_color(infile,1);
  2891.                     /* draw_hatchfill(ctx,x0,y0,dx,dy,linewidth,color,opacity,xsize,ysize) */
  2892.                     string_length = snprintf(NULL,0,  "draw_hatchfill(%d,%d,%d,%d,%d,%d,\"%s\",%.2f,%d,%d);\n",STATIC_CANVAS,int_data[0],int_data[1],int_data[2],int_data[3],line_width,stroke_color,stroke_opacity,xsize,ysize);
  2893.                     check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  2894.                     snprintf(tmp_buffer,string_length,"draw_hatchfill(%d,%d,%d,%d,%d,%d,\"%s\",%.2f,%d,%d);\n",STATIC_CANVAS,int_data[0],int_data[1],int_data[2],int_data[3],line_width,stroke_color,stroke_opacity,xsize,ysize);
  2895.                     add_to_buffer(tmp_buffer);
  2896.                     break;
  2897.                     default:break;
  2898.                 }
  2899.             }
  2900.             reset();
  2901.         break;
  2902.         case DIAMONDFILL:
  2903.         /*
  2904.         @ diamondfill x0,y0,dx,dy,color
  2905.         @ x0,y0 in xrange / yrange
  2906.         @ distances dx,dy in pixels
  2907.         */
  2908.             if( js_function[DRAW_DIAMONDFILL] != 1 ){ js_function[DRAW_DIAMONDFILL] = 1;}
  2909.             for(i=0;i<5;i++){
  2910.                 switch(i){
  2911.                     case 0: int_data[0] = x2px(get_real(infile,0)); break; /* x */
  2912.                     case 1: int_data[1] = y2px(get_real(infile,0)); break; /* y  */
  2913.                     case 2: int_data[2] = (int) (get_real(infile,0)); break; /* dx pixel */
  2914.                     case 3: int_data[3] = (int) (get_real(infile,0)); break; /* dy pixel*/
  2915.                     case 4: stroke_color = get_color(infile,1);
  2916.                     /* draw_hatchfill(ctx,x0,y0,dx,dy,linewidth,color,opacity,xsize,ysize) */
  2917.                     string_length = snprintf(NULL,0,  "draw_diamondfill(%d,%d,%d,%d,%d,%d,\"%s\",%.2f,%d,%d);\n",STATIC_CANVAS,int_data[0],int_data[1],int_data[2],int_data[3],line_width,stroke_color,stroke_opacity,xsize,ysize);
  2918.                     check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  2919.                     snprintf(tmp_buffer,string_length,"draw_diamondfill(%d,%d,%d,%d,%d,%d,\"%s\",%.2f,%d,%d);\n",STATIC_CANVAS,int_data[0],int_data[1],int_data[2],int_data[3],line_width,stroke_color,stroke_opacity,xsize,ysize);
  2920.                     add_to_buffer(tmp_buffer);
  2921.                     break;
  2922.                     default:break;
  2923.                 }
  2924.             }
  2925.             reset();
  2926.         break;
  2927.         case GRIDFILL:
  2928.         /*
  2929.         @ gridfill x0,y0,dx,dy,color
  2930.         @ x0,y0 in xrange / yrange
  2931.         @ distances dx,dy in pixels
  2932.         @ a draggable object may snap_to_grid (using keywords xysnaptogrid,xsnaprogrid, ysnaptogrid)
  2933.         @ userdraw object may snap_to_grid
  2934.         */
  2935.             if( js_function[DRAW_GRIDFILL] != 1 ){ js_function[DRAW_GRIDFILL] = 1;}
  2936.             for(i=0;i<5;i++){
  2937.                 switch(i){
  2938.                     case 0: int_data[0] = x2px(get_real(infile,0)); break; /* x */
  2939.                     case 1: int_data[1] = y2px(get_real(infile,0)); break; /* y  */
  2940.                     case 2: int_data[2] = (int) (get_real(infile,0)); break; /* dx pixel */
  2941.                     case 3: int_data[3] = (int) (get_real(infile,0)); break; /* dy pixel*/
  2942.                     case 4: stroke_color = get_color(infile,1);
  2943.                     string_length = snprintf(NULL,0,  "draw_gridfill(%d,%d,%d,%d,%d,%d,\"%s\",%.2f,%d,%d);\n",STATIC_CANVAS,int_data[0],int_data[1],int_data[2],int_data[3],line_width,stroke_color,stroke_opacity,xsize,ysize);
  2944.                     check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  2945.                     snprintf(tmp_buffer,string_length,"draw_gridfill(%d,%d,%d,%d,%d,%d,\"%s\",%.2f,%d,%d);\n",STATIC_CANVAS,int_data[0],int_data[1],int_data[2],int_data[3],line_width,stroke_color,stroke_opacity,xsize,ysize);
  2946.                     add_to_buffer(tmp_buffer);
  2947.                     break;
  2948.                     default:break;
  2949.                 }
  2950.             }
  2951.             reset();
  2952.         break;
  2953.         case DOTFILL:
  2954.         /*
  2955.         @ dotfill x0,y0,dx,dy,color
  2956.         @ x0,y0 in xrange / yrange
  2957.         @ distances dx,dy in pixels
  2958.         @ radius of dots is linewidth
  2959.         */
  2960.             if( js_function[DRAW_DOTFILL] != 1 ){ js_function[DRAW_DOTFILL] = 1;}
  2961.             for(i=0;i<5;i++){
  2962.                 switch(i){
  2963.                     case 0: int_data[0] = x2px(get_real(infile,0)); break; /* x */
  2964.                     case 1: int_data[1] = y2px(get_real(infile,0)); break; /* y  */
  2965.                     case 2: int_data[2] = (int) (get_real(infile,0)); break; /* dx pixel */
  2966.                     case 3: int_data[3] = (int) (get_real(infile,0)); break; /* dy pixel*/
  2967.                     case 4: stroke_color = get_color(infile,1);
  2968.                     /* draw_dotfill(ctx,x0,y0,dx,dy,radius,color,opacity,xsize,ysize) */
  2969.                     string_length = snprintf(NULL,0,  "draw_dotfill(%d,%d,%d,%d,%d,%d,\"%s\",%.2f,%d,%d);\n",STATIC_CANVAS,int_data[0],int_data[1],int_data[2],int_data[3],line_width,stroke_color,stroke_opacity,xsize,ysize);
  2970.                     check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  2971.                     snprintf(tmp_buffer,string_length,"draw_dotfill(%d,%d,%d,%d,%d,%d,\"%s\",%.2f,%d,%d);\n",STATIC_CANVAS,int_data[0],int_data[1],int_data[2],int_data[3],line_width,stroke_color,stroke_opacity,xsize,ysize);
  2972.                     add_to_buffer(tmp_buffer);
  2973.                     break;
  2974.                     default:break;
  2975.                 }
  2976.             }
  2977.             reset();
  2978.         break;
  2979.         case IMAGEFILL:
  2980.         /*
  2981.         @ imagefill dx,dy,image_url
  2982.         @ The next suitable <b>filled object</b> will be filled with "image_url" tiled
  2983.         @ After pattern filling ,the fill-color should be reset !
  2984.         @ wims getins / image from class directory : imagefill 80,80,my_image.gif
  2985.         @ normal url : imagefill 80,80,$module_dir/gifs/my_image.gif
  2986.         @ normal url : imagefill 80,80,http://adres/a/b/c/my_image.jpg
  2987.         @ if dx,dy is larger than the image, the whole image will be background to the next object.
  2988.         */
  2989.             if( js_function[DRAW_IMAGEFILL] != 1 ){ js_function[DRAW_IMAGEFILL] = 1;}
  2990.             for(i=0 ;i < 3 ; i++){
  2991.                 switch(i){
  2992.                     case 0:int_data[0] = (int) (get_real(infile,0));break;
  2993.                     case 1:int_data[1] = (int) (get_real(infile,0));break;
  2994.                     case 2: URL = get_string_argument(infile,1);
  2995.                             string_length = snprintf(NULL,0,  "draw_imagefill(%d,%d,%d,\"%s\",%d,%d);\n",STATIC_CANVAS,int_data[0],int_data[1],URL,xsize,ysize);
  2996.                             check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  2997.                             snprintf(tmp_buffer,string_length,"draw_imagefill(%d,%d,%d,\"%s\",%d,%d);\n",STATIC_CANVAS,int_data[0],int_data[1],URL,xsize,ysize);
  2998.                             add_to_buffer(tmp_buffer);
  2999.                     break;
  3000.                 }
  3001.             }
  3002.             reset();
  3003.         break;
  3004.         case FILLTOBORDER:
  3005.         /*
  3006.         @ filltoborder x,y,bordercolor,color
  3007.         @ fill the region  of point (x:y) bounded by 'bordercolor' with color 'color'
  3008.         @ any other color will not act as border to the bucket fill
  3009.         @ use this command  after all boundary objects are declared.
  3010.         @ NOTE: filltoborder is a very (client) cpu intensive operation!<br />filling is done pixel by pixel<br/>e.g. image size of 400x400 uses 160000 pixels : each pixel contains 4 data (R,G,B,Opacity) = 640000 data.<br />on every data a few operations / comparisons are done...<br />So have pity on your students CPU..
  3011.         */
  3012.             for(i=0 ;i < 4 ; i++){
  3013.                 switch(i){
  3014.                     case 0:double_data[0] = get_real(infile,0);break;
  3015.                     case 1:double_data[1] = get_real(infile,0);break;
  3016.                     case 2:bgcolor = get_color(infile,0);break;
  3017.                     case 3:fill_color = get_color(infile,1);
  3018.                            if(js_function[DRAW_FILLTOBORDER] != 1 ){/* use only once */
  3019.                                 js_function[DRAW_FILLTOBORDER] = 1;
  3020.                                 add_js_filltoborder(js_include_file,canvas_root_id);
  3021.                            }
  3022.                            decimals = find_number_of_digits(precision);
  3023.                            /* we need to set a timeout: the canvas is not yet draw in memory? when floodfill is called directly... */
  3024.                            string_length = snprintf(NULL,0,  "setTimeout(function(){filltoborder(%.*f,%.*f,[%s,%d],[%s,%d]);},1000);\n",decimals,double_data[0],decimals,double_data[1],bgcolor,(int) (fill_opacity/0.0039215),fill_color,(int) (fill_opacity/0.0039215));
  3025.                            check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  3026.                            snprintf(tmp_buffer,string_length,"setTimeout(function(){filltoborder(%.*f,%.*f,[%s,%d],[%s,%d]);},1000);\n",decimals,double_data[0],decimals,double_data[1],bgcolor,(int) (fill_opacity/0.0039215),fill_color,(int) (fill_opacity/0.0039215));
  3027.                            add_to_buffer(tmp_buffer);
  3028.                            break;
  3029.                     default:break;
  3030.                 }
  3031.             }
  3032.             reset();
  3033.         break;
  3034.         case FLOODFILL:
  3035.         /*
  3036.         @ floodfill x,y,color
  3037.         @ alternative syntax: fill x,y,color
  3038.         @ fill the region of point (x:y) with color 'color'
  3039.         @ any other color or size of picture (borders of picture) will act as border to the bucket fill
  3040.         @ use this command  after all boundary objects are declared.
  3041.         @ Use command 'clickfill,color' for user click driven flood fill.
  3042.         @ NOTE: recognised colour boundaries are in the "drag canvas" e.g. only for objects that can be set draggable / clickable
  3043.         @ NOTE: floodfill is a very (client) cpu intensive operation!<br />filling is done pixel by pixel<br/>e.g. image size of 400x400 uses 160000 pixels : each pixel contains 4 data (R,G,B,Opacity) = 640000 data.<br />on every data a few operations / comparisons are done...<br />So have pity on your students CPU..
  3044.         */
  3045.             for(i=0 ;i < 4 ; i++){
  3046.                 switch(i){
  3047.                     case 0:double_data[0] = get_real(infile,0);break;
  3048.                     case 1:double_data[1] = get_real(infile,0);break;
  3049.                     case 2:fill_color = get_color(infile,1);
  3050.                            if(js_function[DRAW_FLOODFILL] != 1 ){/* use only once */
  3051.                                 js_function[DRAW_FLOODFILL] = 1;
  3052.                                 add_js_floodfill(js_include_file,canvas_root_id);
  3053.                            }
  3054.                            decimals = find_number_of_digits(precision);/*floodfill(interaction,x,y,[R,G,B,A]) */
  3055.                            /* we need to set a timeout: the canvas is not yet draw in memory? when floodfill is called directly... */
  3056.                            string_length = snprintf(NULL,0,  "setTimeout(function(){floodfill(0,%.*f,%.*f,[%s,%d]);},1000);\n",decimals,double_data[0],decimals,double_data[1],fill_color,(int) (fill_opacity/0.0039215));
  3057.                            check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  3058.                            snprintf(tmp_buffer,string_length,"setTimeout(function(){floodfill(0,%.*f,%.*f,[%s,%d]);},1000);\n",decimals,double_data[0],decimals,double_data[1],fill_color,(int) (fill_opacity/0.0039215));
  3059.                            add_to_buffer(tmp_buffer);
  3060.                            break;
  3061.                     default:break;
  3062.                 }
  3063.             }
  3064.             reset();
  3065.         break;
  3066.         case CLICKFILLMARGE:
  3067.             clickfillmarge = (int) (get_real(infile,1));
  3068.             break;
  3069.         /*
  3070.         @ clickfillmarge int
  3071.         @ default 20 (pixels)
  3072.         @ when using command "clickfill fillcolor" a coloured area my be reverted ("undo") <br />back to background colour with a middle mouse click<br />when the click is in a 40x40 rectangle around a stored m mouseclick (userdraw_x[] and userdraw_y[])
  3073.         */
  3074.         case CLICKFILL:
  3075.         /*
  3076.         @ clickfill fillcolor
  3077.         @ user left mouse click will floodfill the area with fillcolor
  3078.         @ multiple areas may be coloured
  3079.         @ the coloured areas can be removed (changed to "bgcolor") by  middle / right mouse click <br />(if the click is in an 40x40 pixel area of the click coordinate that "painted" the area)
  3080.         @ the answer will be read as the (x:y) click coordinates per coloured area
  3081.         @ background color of main div may be set by using command "bgcolor color"
  3082.         @ may not be combined with command "userdraw"
  3083.         @ NOTE: recognised colour boundaries are in the "drag canvas" e.g. only for objects that can be set draggable / clickable
  3084.         */
  3085.          fill_color = get_color(infile,1);
  3086.          if(js_function[DRAW_FLOODFILL] != 1 ){/* use only once */
  3087.             js_function[DRAW_FLOODFILL] = 1;
  3088.             add_js_floodfill(js_include_file,canvas_root_id);
  3089.          }
  3090.          fprintf(js_include_file,"\n<!-- begin command clickfill -->\nvar marge_xy = %d;userdraw_x = new Array();userdraw_y = new Array();var user_clickfill_cnt = 0;\ncanvas_div.addEventListener(\"mousedown\",clickfill,false);function clickfill(evt){var x = evt.clientX - findPosX(canvas_div) + document.body.scrollLeft + document.documentElement.scrollLeft;var y = evt.clientY - findPosY(canvas_div) + document.body.scrollTop + document.documentElement.scrollTop;if(evt.which != 1){for(var p=0; p < user_clickfill_cnt;p++){if(userdraw_x[p] + marge_xy > x && userdraw_x[p] - marge_xy < x){if(userdraw_y[p] + marge_xy > y && userdraw_y[p] - marge_xy < y){if(confirm(\"Clear ?\")){floodfill(1,userdraw_x[p],userdraw_y[p],canvas_div.style.backgroundColor || [255,255,255,0]);userdraw_x.splice(p,2);userdraw_y.splice(p,2);user_clickfill_cnt--;return;};};};};};userdraw_x[user_clickfill_cnt] = x;userdraw_y[user_clickfill_cnt] = y;user_clickfill_cnt++;floodfill(1,x,y,[%s,%d]);};",clickfillmarge,fill_color,(int) (fill_opacity/0.0039215));
  3091.          add_read_canvas(canvas_root_id,1,reply_precision);
  3092.          reset();
  3093.         break;
  3094.         case SETPIXEL:
  3095.         /*
  3096.         @ setpixel x,y,color
  3097.         @ A "point" with diameter 1 pixel centeres at (x:y) in xrange / yrange
  3098.         @ pixels can not be dragged or clicked
  3099.         @ "pixelsize = 1" may be changed by command "pixelsize int"
  3100.         */
  3101.             if( js_function[DRAW_PIXELS] != 1 ){ js_function[DRAW_PIXELS] = 1;}
  3102.             for(i=0;i<3;i++){
  3103.                 switch(i){
  3104.                     case 0: double_data[0] = get_real(infile,0); break; /* x */
  3105.                     case 1: double_data[1] = get_real(infile,0); break; /* y  */
  3106.                     case 2: stroke_color = get_color(infile,1);
  3107.                            string_length = snprintf(NULL,0,"draw_setpixel([%f],[%f],\"%s\",%.2f,%d);\n",double_data[0],double_data[1],stroke_color,stroke_opacity,pixelsize);
  3108.                            check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  3109.                            snprintf(tmp_buffer,string_length,"draw_setpixel([%f],[%f],\"%s\",%.2f,%d);\n",double_data[0],double_data[1],stroke_color,stroke_opacity,pixelsize);
  3110.                            add_to_buffer(tmp_buffer);
  3111.                            break;
  3112.                     default:break;
  3113.                 }
  3114.             }
  3115.             reset();
  3116.         break;
  3117.         case PIXELSIZE:
  3118.         /*
  3119.         @ pixelsize int
  3120.         @ in case you want to deviate from default pixelsize = 1...
  3121.         */
  3122.             pixelsize = (int) get_real(infile,1);
  3123.         break;
  3124.         case PIXELS:
  3125.         /*
  3126.         @ pixels color,x1,y1,x2,y2,x3,y3...
  3127.         @ Draw  "points" with diameter 1 pixel
  3128.         @ pixels can not be dragged or clicked
  3129.         @ "pixelsize = 1" may be changed by command "pixelsize int"
  3130.         */
  3131.             if( js_function[DRAW_PIXELS] != 1 ){ js_function[DRAW_PIXELS] = 1;}
  3132.             stroke_color=get_color(infile,0);
  3133.             i=0;
  3134.             c=0;
  3135.             while( ! done ){     /* get next item until EOL*/
  3136.                 if(i > MAX_INT - 1){canvas_error("to many points in argument: repeat command multiple times to fit");}
  3137.                 for( c = 0 ; c < 2; c++){
  3138.                     if(c == 0 ){
  3139.                         double_data[i] = get_real(infile,0);
  3140.                         i++;
  3141.                     }
  3142.                     else
  3143.                     {
  3144.                         double_data[i] = get_real(infile,1);
  3145.                         i++;
  3146.                     }
  3147.                 }
  3148.             }
  3149.             decimals = find_number_of_digits(precision);
  3150.             /*  *double_xy2js_array(double xy[],int len,int decimals) */
  3151.             string_length = snprintf(NULL,0,  "draw_setpixel(%s,\"%s\",%.2f,%d);\n",double_xy2js_array(double_data,i,decimals),stroke_color,stroke_opacity,pixelsize);
  3152.             check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  3153.             snprintf(tmp_buffer,string_length,"draw_setpixel(%s,\"%s\",%.2f,%d);\n",double_xy2js_array(double_data,i,decimals),stroke_color,stroke_opacity,pixelsize);
  3154.             add_to_buffer(tmp_buffer);
  3155.             reset();
  3156.             break;
  3157.         case REPLYFORMAT:
  3158.         /*
  3159.         @ replyformat number
  3160.         @ use number=-1 to deactivate the js-functions read_canvas() and read_dragdrop()
  3161.         @ default values should be fine !
  3162.         @ use command 'precision [0,1,10,100,1000,10000...]' before command 'replyformat' to set the desired number of decimals in the student reply / drawing
  3163.         @ the last value for 'precision int' will be used to calculate  the reply coordinates, if needed (read_canvas();)
  3164.         @ choose<ul><li>1 = x1,x2,x3,x4....x_n<br />y1,y2,y3,y4....y_n<br /><br />x/y in pixels</li><li>2 = x1,x2,x3,x4....x_n<br />  y1,y2,y3,y4....y_n<br /> x/y in xrange / yrange coordinate system<br /></li><li>3 = x1,x2,x3,x4....x_n<br />  y1,y2,y3,y4....y_n<br />  r1,r2,r3,r4....r_n<br />  x/y in pixels <br />  r in pixels</li><li>4 = x1,x2,x3,x4....x_n<br />  y1,y2,y3,y4....y_n<br />  r1,r2,r3,r4....r_n<br />  x/y in xrange / yrange coordinate system<br />  r in pixels</li><li>5 = Ax1,Ax2,Ax3,Ax4....Ax_n<br />  Ay1,Ay2,Ay3,Ay4....Ay_n<br />  Bx1,Bx2,Bx3,Bx4....Bx_n<br />  By1,By2,By3,By4....By_n<br />  Cx1,Cx2,Cx3,Cx4....Cx_n<br />  Cy1,Cy2,Cy3,Cy4....Cy_n<br />  ....<br />  Zx1,Zx2,Zx3,Zx4....Zx_n<br />  Zy1,Zy2,Zy3,Zy4....Zy_n<br />  x/y in pixels<br /></li><li>6 = Ax1,Ax2,Ax3,Ax4....Ax_n<br />  Ay1,Ay2,Ay3,Ay4....Ay_n<br />  Bx1,Bx2,Bx3,Bx4....Bx_n<br />  By1,By2,By3,By4....By_n<br />  Cx1,Cx2,Cx3,Cx4....Cx_n<br />  Cy1,Cy2,Cy3,Cy4....Cy_n<br />  ....<br />  Zx1,Zx2,Zx3,Zx4....Zx_n<br />  Zy1,Zy2,Zy3,Zy4....Zy_n<br />  x/y in xrange / yrange coordinate system<br /></li><li>7 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n<br />  x/y in pixels</li><li>8 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n<br />  x/y in xrange / yrange coordinate system</li><li>9 = x1:y1:r1,x2:y2:r2,x3:y3:r3,x4:y4:r3...x_n:y_n:r_n<br />  x/y in pixels</li><li>10 = x1:y1:r1,x2:y2:r2,x3:y3:r3,x4:y4:r3...x_n:y_n:r_n<br />  x/y in xrange / yrange coordinate system</li><li>11 = Ax1,Ay1,Ax2,Ay2<br />   Bx1,By1,Bx2,By2<br />   Cx1,Cy1,Cx2,Cy2<br />   Dx1,Dy1,Dx2,Dy2<br />   ......<br />   Zx1,Zy1,Zx2,Zy2<br />  x/y in xrange / yrange coordinate system</li><li>12 = Ax1,Ay1,Ax2,Ay2<br />   Bx1,By1,Bx2,By2<br />Cx1,Cy1,Cx2,Cy2<br />   Dx1,Dy1,Dx2,Dy2<br />   ......<br />   Zx1,Zy1,Zx2,Zy2<br />  x/y in pixels</li><li>13 = Ax1:Ay1:Ax2:Ay2,Bx1:By1:Bx2:By2,Cx1:Cy1:Cx2:Cy2,Dx1:Dy1:Dx2:Dy2, ... ,Zx1:Zy1:Zx2:Zy2<br />  x/y in xrange / yrange coordinate system</li><li>14 = Ax1:Ay1:Ax2:Ay2,Bx1:By1:Bx2:By2....Zx1:Zy1:Zx2:Zy2<br />  x/y in pixels</li><li>15 = reply from inputfields,textareas<br />  reply1,reply2,reply3,...,reply_n</li><li>16 = mathml input fields </li><li>17 = read "userdraw text,color" only (x1:y1:text1,x2:y2:text2...x_n:y_n:text_n</li><li>18 = read_canvas() will read all interactive clocks in H1:M1:S1,H2:M2:S2...Hn:Mn:Sn</li><li>19 = read_canvas() will return the object number of marked / clicked object (clock)<br />analogue to (shape library) onclick command </li><li>21 = (x1:y1) (x2:y2) ... (x_n:y_n)<br />verbatim coordinate return</li>22 = returns an array .... reply[0]=x1 reply[1]=y1 reply[2]=x2 reply[3]=y2 ... reply[n-1]=x_n reply[n]=y_n<br />  x/y in xrange / yrange coordinate system</li><li>replyformat 23 : can only be used for drawtype 'polyline'<br />a typical click sequence in drawtype polyline isx1,y1,x2,y2,x2,y2,x3,y3,x3,y3.....,x(n-1),y(n-1),x(n-1),y(n-1),xn,yn --replyformat 23--> x1,y1,x2,y2,x3,y3,.....x(n-1),y(n-1),xn,yn multiple occurences will be filtered out.The reply will be in x-y-range (xreply \\n yreply)</li><li>replyformat 24 = read all inputfield values: even those set 'readonly'</li><li>format 25 = angle1,angle2...angle_n : will return the radius (one or many) of the user drawn circle segment in degrees </li><li>format 26 = rad1,rad2...rad_n : will return the radius (one or many) of the user drawn circle segment in radians </li><li>27 = return (only) userdraw inputfields array: x1:y1:text1,x2:y2:text2...</li><li>28 = x1,y1,r1,x2,y2,r2...x_n,y_n,r_n <br />x / y / r in  xrange / yrange coordinate system: may be used to reinput into command 'circles color,x1,y1,r1,x2,y2,r2...x_n,y_n,r_n'<br /> will not return anything else (e.g. no inputfields , text etc)</li></ul>
  3165.         @ note to 'userdraw text,color' : the x / y-values are in pixels ! (this to avoid too lengthy calculations in javascript...)
  3166.         */
  3167.          reply_format = (int) get_real(infile,1);
  3168.          reply_precision = precision;
  3169.         break;
  3170.         case LEGENDCOLORS:
  3171.         /*
  3172.         @ legendcolors color1:color2:color3:...:color_n
  3173.         @ will be used to colour a legend: use this command after the legend command ! e.g.<br />legend test1:test2:test3<br />legendcolors blue:red:orange<br />
  3174.         @ make sure the number of colours match the number of legend items
  3175.         @ command 'legend' in case of 'piechart' and 'barchart' will use these colours per default (no need to specify 'legendcolors'
  3176.         */
  3177.             if(legend_cnt == -1){canvas_error("use command \"legend\" before command \"legendcolors\" ! ");}
  3178.             temp = get_string(infile,1);
  3179.             if( strstr( temp,":") != 0 ){ temp = str_replace(temp,":","\",\""); }
  3180.             fprintf(js_include_file,"var legendcolors%d = [\"%s\"];",legend_cnt,temp);
  3181.             break;
  3182.         case LEGEND:
  3183.         /*
  3184.         @ legend string1:string2:string3....string_n
  3185.         @ will be used to create a legend for a graph
  3186.         @ also see command 'piechart'
  3187.         @ will use the same colors per default as used in the graphs : use command 'legendcolors' to override the default
  3188.         */
  3189.             temp = get_string(infile,1);
  3190.             if( strstr( temp,":") != 0 ){ temp = str_replace(temp,":","\",\""); }
  3191.             legend_cnt++; /* attention :starts with -1 : it will be used in piechart etc */
  3192.             fprintf(js_include_file,"var legend%d = [\"%s\"];",legend_cnt,temp);
  3193.             break;
  3194.         case XLABEL:
  3195.         /*
  3196.         @ xlabel some_string
  3197.         @ will be used to create a label for the x-axis (label is in quadrant I)
  3198.         @ can only be used together with command 'grid'<br />not depending on keywords 'axis' and 'axisnumbering'
  3199.         @ font setting: italic Courier, fontsize will be slightly larger (fontsize + 4)
  3200.         */
  3201.             temp = get_string(infile,1);
  3202.             fprintf(js_include_file,"var xaxislabel = \"%s\";",temp);
  3203.             break;
  3204.         case YLABEL:
  3205.         /*
  3206.         @ ylabel some_string
  3207.         @ will be used to create a (vertical) label for the y-axis (label is in quadrant I)
  3208.         @ can only be used together with command 'grid'<br />not depending on keywords 'axis' and 'axisnumbering'
  3209.         @ font setting: italic Courier, fontsize will be slightly larger (fontsize + 4)
  3210.         */
  3211.             temp = get_string(infile,1);
  3212.             fprintf(js_include_file,"var yaxislabel = \"%s\";",temp);
  3213.             break;
  3214.         case LINEGRAPH: /* scheme: var linegraph_0 = [ 'stroke_color','line_width','use_dashed' ,'dashtype0','dashtype1','x1','y1',...,'x_n','y_n'];*/
  3215.         /*
  3216.         @ linegraph x1:y1;x2:y2...x_n:y_n
  3217.         @ will plot your data in a graph
  3218.         @ may only to be used together with command 'grid'
  3219.         @ can be used together with freestyle x-axis/y-axis texts : see commands 'xaxis' and 'yaxis'
  3220.         @ use command 'legend' to provide an optional legend in right-top-corner
  3221.         @ also see command 'piechart'
  3222.         @ multiple linegraphs may be used in a single plot
  3223.         @ NOTE: your arguments are not checked by canvasdraw : use your javascript console in case of trouble...
  3224.         @ <ul><li>use command 'strokecolor' before command 'linegraph' to set the color of this graph</li><li>use command 'linewidth' before command 'linegraph' to set linewidth of this graph</li><li>use command 'dashed' before command 'linegraph' to set dashing of the graph</li><li>if dashing is set, use command 'dashtype' before command 'linegraph' to set the type of dashing of the graph</li></ul>
  3225.         */
  3226.             temp = get_string(infile,1);
  3227.             if( strstr( temp,":") != 0 ){ temp = str_replace(temp,":","\",\""); }
  3228.             fprintf(js_include_file,"var linegraph_%d = [\"%s\",\"%d\",\"%d\",\"%d\",\"%d\",\"%s\"];",linegraph_cnt,stroke_color,line_width,use_dashed,dashtype[0],dashtype[1],temp);
  3229.             linegraph_cnt++;
  3230.             reset();
  3231.             break;
  3232.         case BARCHART:
  3233.         /*
  3234.         @ barchart x_1:y_1:color_1:x_2:y_2:color_2:...x_n:y_n:color_n
  3235.         @ will be used to create a legend for bar graph
  3236.         @ may only to be used together with command 'grid'
  3237.         @ can be used together with freestyle x-axis/y-axis texts : see commands 'xaxis' and 'yaxis'
  3238.         @ use command 'legend' to provide an optional legend in right-top-corner
  3239.         @ also see command 'piechart'
  3240.         @ NOTE: your arguments are not checked by canvasdraw : use your javascript console in case of trouble...
  3241.         */
  3242.             temp = get_string(infile,1);
  3243.             if( strstr( temp,":" ) != 0 ){ temp = str_replace(temp,":","\",\""); }
  3244.             fprintf(js_include_file,"var barchart_%d = [\"%s\"];",barchart_cnt,temp);
  3245.             barchart_cnt++;
  3246.             reset();
  3247.             break;
  3248.         case CLOCK:
  3249.         /*
  3250.         @ clock x,y,r(px),H,M,S,type hourglass,interactive [ ,H_color,M_color,S_color,background_color,foreground_color ]
  3251.         @ use command 'opacity stroke-opacity,fill-opacity' to adjust foreground (stroke) and background (fill) transparency
  3252.         @ type hourglass:<br />type = 0 : only segments<br />type = 1 : only numbers<br />type = 2 : numbers and segments
  3253.         @ colors are optional: if not defined, default values will be used<br />default colours: clock 0,0,60,4,35,45,1,2,[space]<br />default colours: clock 0,0,60,4,35,45,1,2,,,,,<br />custom colours: clock 0,0,60,4,35,45,1,2,,,,yellow,red<br />custom colours: clock 0,0,60,4,35,45,1,2,white,white,white,black,yellow
  3254.         @ if you don't want a seconds hand (or minutes...), just make it invisible by using the background color of the hourglass...
  3255.         @ interactive <ul><li>0 : not interactive, just clock(s)</li><li>1 : function read_canvas() will read all active clocks in H:M:S format<br />The active clock(s) can be adjusted by pupils</li><li>2 : function read_canvas() will return the clicked clock <br />(like multiplechoice; first clock in script in nr. 0 )</li></ul>
  3256.         @ canvasdraw will not check validity of colornames...the javascript console is your best friend
  3257.         @ no combinations with other reply_types allowed, for now
  3258.         @ if interactive, 6 buttons per clock will be displayed for adjusting a clock (H+ M+ S+ H- M- S-)<br /> set_clock(clock_id,type,incr) <br />first clock has clock_id=0 ; type : H=1,M=2,S=3 ; incr : increment integer
  3259.         @ NOTE: if you need multiple clocks on a webpage, use multiple 'clock' commands in a single script !<br />and <i>not multiple canvas scripts</i> in a single page
  3260.         */
  3261.             if( js_function[DRAW_CLOCK] != 1 ){ js_function[DRAW_CLOCK] = 1;}
  3262.  
  3263.         /*    var clock = function(xc,yc,radius,H,M,S,h_color,m_color,s_color,bg_color,fg_color) */
  3264.             for(i=0;i<9;i++){
  3265.              switch(i){
  3266.               case 0: int_data[0] = x2px(get_real(infile,0)); break; /* xc */
  3267.               case 1: int_data[1] = y2px(get_real(infile,0)); break; /* yc */
  3268.               case 2: int_data[2] = get_real(infile,0);break;/* radius in px */
  3269.               case 3: int_data[3] = get_real(infile,0);break;/* hours */
  3270.               case 4: int_data[4] = get_real(infile,0);break;/* minutes */
  3271.               case 5: int_data[5] = get_real(infile,0);break;/* seconds */
  3272.               case 6: int_data[6] = get_real(infile,0);if(int_data[6] < 0 || int_data[6] > 2){canvas_error("hourglass can be 0,1 or 2");}break;/* type hourglass */
  3273.               case 7: int_data[7] = (int)(get_real(infile,0));/* interactive 0,1,2*/
  3274.                 switch(int_data[7]){
  3275.                     case 0:break;
  3276.                     case 1:if(clock_cnt == 0){
  3277.                                 if( reply_format == 0 ){
  3278.                                      reply_format = 18; /* user sets clock */
  3279.                                     /* string_length = snprintf(NULL,0,"set_clock = function(num,type,diff){var name = eval(\"clocks\"+num);switch(type){case 1:name.H = parseInt(name.H+diff);break;case 2:name.M = parseInt(name.M+diff);break;case 3:name.S = parseInt(name.S+diff);break;default: break;};name = clock(name.xc,name.yc,name.radius,name.H,name.M,name.S,name.type,name.interaction,name.H_color,name.M_color,name.S_color,name.bg_color,name.fg_color);};\n");
  3280.                                      check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  3281.                                      snprintf(tmp_buffer,string_length,"set_clock = function(num,type,diff){var name = eval(\"clocks\"+num);switch(type){case 1:name.H = parseInt(name.H+diff);break;case 2:name.M = parseInt(name.M+diff);break;case 3:name.S = parseInt(name.S+diff);break;default: break;};name = clock(name.xc,name.yc,name.radius,name.H,name.M,name.S,name.type,name.interaction,name.H_color,name.M_color,name.S_color,name.bg_color,name.fg_color);};\n");
  3282.                                      add_to_buffer(tmp_buffer);
  3283.                                     */
  3284.                                      fprintf(js_include_file,"set_clock = function(num,type,diff){if(wims_status == \"done\"){return;};var name = eval(\"clocks\"+num);switch(type){case 1:name.H = parseInt(name.H+diff);break;case 2:name.M = parseInt(name.M+diff);break;case 3:name.S = parseInt(name.S+diff);break;default: break;};name = new clock(name.xc,name.yc,name.radius,name.H,name.M,name.S,name.type,name.interaction,name.H_color,name.M_color,name.S_color,name.bg_color,name.fg_color);};\n");
  3285.                                 }
  3286.                                 else
  3287.                                 {
  3288.                                     canvas_error("interactive clock may not be used together with other reply_types...");
  3289.                                 }
  3290.                              }
  3291.                             fprintf(stdout,"<p style=\"text-align:center\"><input style=\"%s\" type=\"button\" onclick=\"javascript:set_clock(%d,1,1)\" value=\"H+\" /><input style=\"%s\" type=\"button\" onclick=\"javascript:set_clock(%d,2,1)\" value=\"M+\" /><input style=\"%s\" type=\"button\" onclick=\"javascript:set_clock(%d,3,1)\" value=\"S+\" /><br /><input style=\"%s\" type=\"button\" onclick=\"javascript:set_clock(%d,1,-1)\" value=\"H&minus;\" /><input style=\"%s\" type=\"button\" onclick=\"javascript:set_clock(%d,2,-1)\" value=\"M&minus;\" /><input style=\"%s\" type=\"button\" onclick=\"javascript:set_clock(%d,3,-1)\" value=\"S&minus;\" /></p>",input_style,clock_cnt,input_style,clock_cnt,input_style,clock_cnt,input_style,clock_cnt,input_style,clock_cnt,input_style,clock_cnt);
  3292.                     break;
  3293.                     case 2:if( reply_format == 0 ){
  3294.                                 reply_format = 19; /* "onclick */
  3295.                                 fprintf(js_include_file,"\n<!-- begin onclick handler for clocks -->\nvar reply = new Array();\n\ncanvas_div.addEventListener( 'mousedown', user_click,false);\n\nfunction user_click(evt){if(evt.which == 1){var canvas_rect = clock_canvas.getBoundingClientRect();\nvar x = evt.clientX - canvas_rect.left;\nvar y = evt.clientY - canvas_rect.top;\nvar p = 0;\nvar name;\nvar t = true;\nwhile(t){try{name = eval('clocks'+p);\nif( x < name.xc + name.radius && x > name.xc - name.radius ){if( y < name.yc + name.radius && y > name.yc - name.radius ){reply[0] = p;\nname = new clock(name.xc,name.yc,name.radius,name.H,name.M,name.S,name.type,name.interaction,name.H_color,name.M_color,name.S_color,\"lightblue\",name.fg_color);\n};\n}else{clock_ctx.clearRect(name.xc-name.radius,name.yc-name.radius,name.xc+name.radius,name.yc+name.radius);\nname = new clock(name.xc,name.yc,name.radius,name.H,name.M,name.S,name.type,name.interaction,name.H_color,name.M_color,name.S_color,name.bg_color,name.fg_color);\n};\np++;\n}catch(e){t=false;\n};\n};\n};\n};\n\n<!-- end onclick handler for clocks -->\n ");
  3296.                             }
  3297.                             else
  3298.                             {
  3299.                                 if( reply_format != 19){
  3300.                                    canvas_error("clickable clock(s) may not be used together with other reply_types...");
  3301.                                  }
  3302.                             }
  3303.                      break;
  3304.                      default: canvas_error("interactive must be set 0,1 or 2");break;
  3305.                 }
  3306.                 break;
  3307.                 case 8:
  3308.                         if(clock_cnt == 0 ){ /* set opacity's just once .... it should be a argument to clock() , for now it's OK */
  3309.                             fprintf(js_include_file,"var clock_bg_opacity = %.2f;var clock_fg_opacity = %.2f;",fill_opacity,stroke_opacity);
  3310.                         }
  3311.                         temp = get_string(infile,1);
  3312.                         if( strstr( temp,",") != 0 ){ temp = str_replace(temp,",","\",\""); }
  3313.                         if( strlen(temp) < 1 ){temp = ",\"\",\"\",\"\",\"\",\"\"";}
  3314.                         string_length = snprintf(NULL,0,"var clocks%d = new clock(%d,%d,%d,%d,%d,%d,%d,%d,\"%s\");\n",clock_cnt,int_data[0],int_data[1],int_data[2],int_data[3],int_data[4],int_data[5],int_data[6],int_data[7],temp);
  3315.                         check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  3316.                         snprintf(tmp_buffer,string_length,"var clocks%d = new clock(%d,%d,%d,%d,%d,%d,%d,%d,\"%s\");\n",clock_cnt,int_data[0],int_data[1],int_data[2],int_data[3],int_data[4],int_data[5],int_data[6],int_data[7],temp);
  3317.                         add_to_buffer(tmp_buffer);
  3318.                         clock_cnt++;
  3319.                         break;
  3320.                 default:break;
  3321.              }
  3322.             }
  3323.             break;
  3324.         case PIECHART:
  3325.         /*
  3326.         @ piechart xc,yc,radius,'data+colorlist'
  3327.         @ (xc : yc) center of circle diagram in xrange/yrange
  3328.         @ radius in pixels
  3329.         @ data+color list: a colon separated list of raw data and corresponding colours<br />canvasdraw will not check validity of colornames...<br />in case of trouble look into javascript debugging of your browser
  3330.         @ example data+colorlist : 132:red:23565:green:323:black:234324:orange:23434:yellow:2543:white
  3331.         @ the number of colors must match the number of data.
  3332.         @ use command "opacity 0-255,0-255" to adjust fill_opacity of colours
  3333.         @ use command "legend string1:string2:...:string_n" to automatically create a legend <br />using the same colours as pie segments<br />unicode allowed in legend<br />expect javascript trouble if the amount of 'pie-slices', 'pie-colours' 'pie-legend-titles' do not match<br />a javascript console is your best friend...<br />use command 'fontfamily' to set the font of the legend.
  3334.         */
  3335.             if( js_function[DRAW_PIECHART] != 1 ){ js_function[DRAW_PIECHART] = 1;}
  3336.             for(i=0;i<5;i++){
  3337.                 switch(i){
  3338.                     case 0: int_data[0] = x2px(get_real(infile,0)); break; /* x */
  3339.                     case 1: int_data[1] = y2px(get_real(infile,0)); break; /* y  */
  3340.                     case 2: int_data[2] = (int)(get_real(infile,1));break;/* radius*/
  3341.                     case 3: temp = get_string(infile,1);
  3342.                             if( strstr( temp, ":" ) != 0 ){ temp = str_replace(temp,":","\",\"");}
  3343.                             string_length = snprintf(NULL,0,"draw_piechart(%d,%d,%d,%d,[\"%s\"],%.2f,%d,\"%s\");\n",PIECHART,int_data[0],int_data[1],int_data[2],temp,fill_opacity,legend_cnt,font_family);
  3344.                             check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  3345.                             snprintf(tmp_buffer,string_length,"draw_piechart(%d,%d,%d,%d,[\"%s\"],%.2f,%d,\"%s\");\n",PIECHART,int_data[0],int_data[1],int_data[2],temp,fill_opacity,legend_cnt,font_family);
  3346.                             add_to_buffer(tmp_buffer);
  3347.                            break;
  3348.                     default:break;
  3349.                 }
  3350.             }
  3351.             reset();
  3352.         break;
  3353.         case STATUS:
  3354.         /*
  3355.         @status
  3356.         @keyword
  3357.         @alernative keyword: nostatus
  3358.         @used to override the effects of "status=done" in wims (answer.phtml)
  3359.         @affects inputfields / textarea's in canvasimage and all userdraw based commands
  3360.         @e.g.: if keyword 'status' is set, the pupil will be able to modify the canvas when the 'wims status variable' is set to 'done'
  3361.         */
  3362.  
  3363.             fprintf(js_include_file,"\nwims_status=\"waiting\";\n");
  3364.             break;
  3365.         case XLOGBASE:
  3366.         /*
  3367.         @ xlogbase number
  3368.         @ sets the logbase number for the x-axis
  3369.         @ default value 10
  3370.         @ use together with commands xlogscale / xylogscale
  3371.         */
  3372.             fprintf(js_include_file,"xlogbase=%d;",(int)(get_real(infile,1)));
  3373.             break;
  3374.         case YLOGBASE:
  3375.         /*
  3376.         @ ylogbase number
  3377.         @ sets the logbase number for the y-axis
  3378.         @ default value 10
  3379.         @ use together with commands ylogscale / xylogscale
  3380.         */
  3381.             fprintf(js_include_file,"ylogbase=%d;",(int)(get_real(infile,1)));
  3382.             break;
  3383.         case XLOGSCALE:
  3384.         /*
  3385.          @ xlogscale ymajor,yminor,majorcolor,minorcolor
  3386.          @ the x/y-range are set using commands 'xrange xmin,xmax' and 'yrange ymin,ymax'
  3387.          @ ymajor is the major step on the y-axis; yminor is the divisor for the y-step
  3388.          @ the linewidth is set using command 'linewidth int'
  3389.          @ the opacity of major / minor grid lines is set by command 'opacity [0-255],[0-255]'
  3390.          @ default logbase number = 10 ... when needed , set the logbase number with command 'xlogbase number'
  3391.          @ the x/y- axis numbering is triggered by keyword 'axisnumbering'<ul><li>use command 'precision' before 'xlogscale' command to set the precision (decimals) of the axis numbering</li><li>use commands 'xlabel some_text' and/or 'ylabel some_text' for text on axis : use command 'fontsize int' to set the fontsize (default 12px)</li><li>use command 'fontfamily fnt_family_string' to set the fonts for axis-numbering</li><li>use command'fontcolor' to set the colour</li></ul>
  3392.          @ note: the complete canvas will be used for the 'log paper'
  3393.          @ note: userdrawings are done in the log paper, e.g. javascript:read_canvas() will return the real values
  3394.          @ note: command 'mouse color,fontsize' will show the real values in the logpaper.<br />\
  3395.          @ note: when using something like 'xrange 0.0001,0.01'...combined with commands 'mouse color,fontsize' and/or 'userdraw type,color'...<br /> make sure the precision is set accordingly (eg command 'precision 10000')
  3396.          @ note: in case of userdraw , the use of keyword 'userinput_xy' may be handy !
  3397.          @ attention: keyword 'snaptogrid' may not lead to the desired result...
  3398.         */
  3399.             if( js_function[DRAW_GRID] == 1 ){canvas_error("only one type of grid is allowed...");}
  3400.             if( js_function[DRAW_XLOGSCALE] != 1 ){ js_function[DRAW_XLOGSCALE] = 1;}
  3401.             for(i=0;i<4;i++){
  3402.                 switch(i){
  3403.                     case 0: double_data[0] = get_real(infile,0);break; /* xmajor */
  3404.                     case 1: int_data[0] = (int) (get_real(infile,0));break; /* xminor */
  3405.                     case 2: stroke_color = get_color(infile,0); break;
  3406.                     case 3: fill_color = get_color(infile,1);
  3407.                         string_length = snprintf(NULL,0,"draw_grid%d(%d,%d,\"%s\",\"%s\",%.2f,%.2f,%d,\"%s\",\"%s\",%d,%f,%d,%d); ",canvas_root_id,GRID_CANVAS,line_width,stroke_color,fill_color,stroke_opacity,fill_opacity,font_size,font_family,font_color,use_axis_numbering,double_data[0],int_data[0],precision);
  3408.                         tmp_buffer = my_newmem(string_length+1);
  3409.                         snprintf(tmp_buffer,string_length,"draw_grid%d(%d,%d,\"%s\",\"%s\",%.2f,%.2f,%d,\"%s\",\"%s\",%d,%f,%d,%d); ",canvas_root_id,GRID_CANVAS,line_width,stroke_color,fill_color,stroke_opacity,fill_opacity,font_size,font_family,font_color,use_axis_numbering,double_data[0],int_data[0],precision);
  3410.                         fprintf(js_include_file,"use_xlogscale=1;snap_y = %f;snap_x = xlogbase;",double_data[0]/int_data[0]);
  3411.                         add_to_buffer(tmp_buffer);
  3412.                         break;
  3413.                     default:break;
  3414.                 }
  3415.             }
  3416.             break;
  3417.         case YLOGSCALE:
  3418.         /*
  3419.          @ ylogscale xmajor,xminor,majorcolor,minorcolor
  3420.          @ the x/y-range are set using commands 'xrange xmin,xmax' and 'yrange ymin,ymax'
  3421.          @ xmajor is the major step on the x-axis; xminor is the divisor for the x-step
  3422.          @ the linewidth is set using command 'linewidth int'
  3423.          @ the opacity of major / minor grid lines is set by command 'opacity [0-255],[0-255]'
  3424.          @ default logbase number = 10 ... when needed , set the logbase number with command 'ylogbase number'
  3425.          @ the x/y- axis numbering is triggered by keyword 'axisnumbering'<ul><li>use command 'precision' before 'ylogscale' command to set the precision (decimals) of the axis numbering</li><li>use commands 'xlabel some_text' and/or 'ylabel some_text' for text on axis : use command 'fontsize int' to set the fontsize (default 12px)</li><li>use command 'fontfamily fnt_family_string' to set the fonts for axis-numbering</li><li>use command'fontcolor' to set the colour</li></ul>
  3426.          @ note: the complete canvas will be used for the 'log paper'
  3427.          @ note: userdrawings are done in the log paper, e.g. javascript:read_canvas() will return the real values
  3428.          @ note: command 'mouse color,fontsize' will show the real values in the logpaper.<br />\
  3429.          @ note: when using something like 'yrange 0.0001,0.01'...combined with commands 'mouse color,fontsize' and/or 'userdraw type,color'...<br /> make sure the precision is set accordingly (eg command 'precision 10000')
  3430.          @ note: in case of userdraw , the use of keyword 'userinput_xy' may be handy !
  3431.          @ attention: keyword 'snaptogrid' may not lead to the desired result...
  3432.         */
  3433.             if( js_function[DRAW_GRID] == 1 ){canvas_error("only one type of grid is allowed...");}
  3434.             if( js_function[DRAW_YLOGSCALE] != 1 ){ js_function[DRAW_YLOGSCALE] = 1;}
  3435.             for(i=0;i<4;i++){
  3436.                 switch(i){
  3437.                     case 0: double_data[0] = get_real(infile,0);break; /* xmajor */
  3438.                     case 1: int_data[0] = (int) (get_real(infile,0));break; /* xminor */
  3439.                     case 2: stroke_color = get_color(infile,0); break;
  3440.                     case 3: fill_color = get_color(infile,1);
  3441.                         string_length = snprintf(NULL,0,"draw_grid%d(%d,%d,\"%s\",\"%s\",%.2f,%.2f,%d,\"%s\",\"%s\",%d,%f,%d,%d); ",canvas_root_id,GRID_CANVAS,line_width,stroke_color,fill_color,stroke_opacity,fill_opacity,font_size,font_family,font_color,use_axis_numbering,double_data[0],int_data[0],precision);
  3442.                         tmp_buffer = my_newmem(string_length+1);
  3443.                         snprintf(tmp_buffer,string_length,"draw_grid%d(%d,%d,\"%s\",\"%s\",%.2f,%.2f,%d,\"%s\",\"%s\",%d,%f,%d,%d); ",canvas_root_id,GRID_CANVAS,line_width,stroke_color,fill_color,stroke_opacity,fill_opacity,font_size,font_family,font_color,use_axis_numbering,double_data[0],int_data[0],precision);
  3444.                         fprintf(js_include_file,"use_ylogscale=1;snap_x = %f;snap_y = ylogbase;",double_data[0]/int_data[0]);
  3445.                         add_to_buffer(tmp_buffer);
  3446.                         break;
  3447.                     default:break;
  3448.                 }
  3449.             }
  3450.             break;
  3451.         case XYLOGSCALE:
  3452.         /*
  3453.          @ xylogscale majorcolor,minorcolor
  3454.          @ the x/y-range are set using commands 'xrange xmin,xmax' and 'yrange ymin,ymax'
  3455.          @ the linewidth is set using command 'linewidth int'
  3456.          @ the opacity of major / minor grid lines is set by command 'opacity [0-255],[0-255]'
  3457.          @ default logbase number = 10 ... when needed , set the logbase number with command 'xlogbase number' and/or 'ylogbase number'
  3458.          @ the x/y- axis numbering is triggered by keyword 'axisnumbering'<ul><li>use commands 'xlabel some_text' and/or 'ylabel some_text' for text on axis : use command 'fontsize int' to set the fontsize (default 12px)</li><li>use command 'fontfamily fnt_family_string' to set the fonts for axis-numbering</li><li>use command'fontcolor' to set the colour</li></ul>
  3459.          @ note: the complete canvas will be used for the 'log paper'
  3460.          @ note: userdrawings are done in the log paper, e.g. javascript:read_canvas() will return the real values
  3461.          @ note: command 'mouse color,fontsize' will show the real values in the logpaper.<br />\
  3462.          @ note: when using something like 'yrange 0.0001,0.01'...combined with commands 'mouse color,fontsize' and/or 'userdraw type,color'...<br /> make sure the precision is set accordingly (eg command 'precision 10000')
  3463.          @ note: in case of userdraw , the use of keyword 'userinput_xy' may be handy !
  3464.          @ attention: keyword 'snaptogrid' may not lead to the desired result...
  3465.         */
  3466.             if( js_function[DRAW_GRID] == 1 ){canvas_error("only one type of grid is allowed...");}
  3467.             if( js_function[DRAW_XYLOGSCALE] != 1 ){ js_function[DRAW_XYLOGSCALE] = 1;}
  3468.             for(i=0;i<2;i++){
  3469.                 switch(i){
  3470.                     case 0: stroke_color = get_color(infile,0); break;
  3471.                     case 1: fill_color = get_color(infile,1);
  3472.                         string_length = snprintf(NULL,0,"draw_grid%d(%d,%d,\"%s\",\"%s\",%.2f,%.2f,%d,\"%s\",\"%s\",%d,%d); ",canvas_root_id,GRID_CANVAS,line_width,stroke_color,fill_color,stroke_opacity,fill_opacity,font_size,font_family,font_color,use_axis_numbering,precision);
  3473.                         tmp_buffer = my_newmem(string_length+1);
  3474.                         snprintf(tmp_buffer,string_length,"draw_grid%d(%d,%d,\"%s\",\"%s\",%.2f,%.2f,%d,\"%s\",\"%s\",%d,%d); ",canvas_root_id,GRID_CANVAS,line_width,stroke_color,fill_color,stroke_opacity,fill_opacity,font_size,font_family,font_color,use_axis_numbering,precision);
  3475.                         fprintf(js_include_file,"use_xlogscale=1;use_ylogscale=1;snap_x = xlogbase;snap_y = ylogbase;");
  3476.                         add_to_buffer(tmp_buffer);
  3477.                         break;
  3478.                     default:break;
  3479.                 }
  3480.             }
  3481.         break;
  3482.         default:sync_input(infile);
  3483.         break;
  3484.     }
  3485.   }
  3486.   /* we are done parsing script file */
  3487.   /* check if xrange / yrange was set explicit ... or use xmin=0 xmax=xsize ymin=0 ymax=ysize : Quadrant I */
  3488.   if( found_size_command == 1 ){
  3489.     fprintf(js_include_file,"var xmin = 0;var xmax = %d;var ymin = 0;var ymax = %d",xsize,ysize);
  3490.   }
  3491.   else
  3492.   {
  3493.     if( found_size_command != 3 ){
  3494.      canvas_error("Please specify both xrange and yrange ...");
  3495.     }
  3496.   }
  3497.  
  3498.   /* if needed, add generic draw functions (grid / xml etc) to buffer : these are no draggable/clickable shapes / objects  ! */
  3499.   add_javascript_functions(js_function,canvas_root_id);
  3500.    /* add read_canvas() etc functions if needed */
  3501.   if( reply_format > 0 ){ add_read_canvas(canvas_root_id,reply_format,reply_precision);}
  3502.   if( use_pan_and_zoom == TRUE ){
  3503.   /* in case of zooming ... */
  3504.   fprintf(js_include_file,"\n<!-- some extra global stuff : need to rethink panning and zooming !!! -->\n\
  3505.  precision = %d;var xmin_start=xmin;var xmax_start=xmax;\
  3506.  var ymin_start=ymin;var ymax_start=xmax;\
  3507.  var zoom_x_increment=0;var zoom_y_increment=0;\
  3508.  var pan_x_increment=0;var pan_y_increment=0;\
  3509.  if(use_ylogscale == 0 ){\
  3510.   zoom_x_increment = (xmax - xmin)/20;zoom_y_increment = (ymax - ymin)/20;pan_x_increment = (xmax - xmin)/20;pan_y_increment = (ymax - ymin)/20;\
  3511.  }else{\
  3512.   zoom_x_increment = (xmax - xmin)/20;\
  3513.   pan_x_increment = (xmax - xmin)/20;\
  3514.  };\
  3515.  function start_canvas%d(type){\
  3516.   switch(type){\
  3517.    case 0:xmin = xmin + zoom_x_increment;ymin = ymin + zoom_y_increment;xmax = xmax - zoom_x_increment;ymax = ymax - zoom_y_increment;break;\
  3518.    case 1:xmin = xmin - zoom_x_increment;ymin = ymin - zoom_y_increment;xmax = xmax + zoom_x_increment;ymax = ymax + zoom_y_increment;break;\
  3519.    case 2:xmin = xmin - pan_x_increment;ymin = ymin ;xmax = xmax - pan_x_increment;ymax = ymax;break;\
  3520.    case 3:xmin = xmin + pan_x_increment;ymin = ymin ;xmax = xmax + pan_x_increment;ymax = ymax;break;\
  3521.    case 4:xmin = xmin;ymin = ymin - pan_y_increment ;xmax = xmax;ymax = ymax - pan_y_increment;break;\
  3522.    case 5:xmin = xmin;ymin = ymin + pan_y_increment ;xmax = xmax;ymax = ymax + pan_y_increment;break;\
  3523.    case 6:location.reload();break;\
  3524.    default:break;\
  3525.   };\
  3526.   if(xmax<=xmin){xmin=xmin_start;xmax=xmax_start;};\
  3527.   if(ymax<=ymin){ymin=ymin_start;ymax=ymax_start;};\
  3528.   try{dragstuff.Zoom(xmin,xmax,ymin,ymax);}catch(e){}\
  3529.   %s\
  3530.  };\
  3531.  start_canvas%d(333);\
  3532. };\n\
  3533. <!-- end wims_canvas_function -->\n\
  3534. wims_canvas_function%d();\n",precision,canvas_root_id,buffer,canvas_root_id,canvas_root_id);
  3535.   }
  3536.   else
  3537.   {
  3538.   /* no zoom, just add buffer */
  3539.   fprintf(js_include_file,"\n<!-- add buffer -->\n\
  3540.  %s\
  3541. };\n\
  3542. <!-- end wims_canvas_function -->\n\
  3543. wims_canvas_function%d();\n",buffer,canvas_root_id);
  3544.   }
  3545. /* done writing the javascript include file */
  3546. fclose(js_include_file);
  3547.  
  3548. }
  3549.  
  3550. /* if using a tooltip, this should always be printed to the *.phtml file, so stdout */
  3551. if(use_tooltip == TRUE){
  3552.   add_js_tooltip(canvas_root_id,tooltip_text,bgcolor,xsize,ysize);
  3553. }
  3554. exit(EXIT_SUCCESS);
  3555. }
  3556. /* end main() */
  3557.  
  3558. /******************************************************************************
  3559. **
  3560. **  sync_input
  3561. **
  3562. **  synchronises input line - reads to end of line, leaving file pointer
  3563. **  at first character of next line.
  3564. **
  3565. **  Used by:
  3566. **  main program - error handling.
  3567. **
  3568. ******************************************************************************/
  3569. void sync_input(FILE *infile)
  3570. {
  3571.         int c = 0;
  3572.  
  3573.         if( c == '\n' || c == ';' ) return;
  3574.         while( ( (c=getc(infile)) != EOF ) && (c != '\n') && (c != '\r') && (c != ';')) ;
  3575.         if( c == EOF ) finished = 1;
  3576.         if( c == '\n' || c == '\r' || c == ';') line_number++;
  3577.         return;
  3578. }
  3579.  
  3580. /******************************************************************************/
  3581.  
  3582. char *str_replace(const char *str, const char *old, const char *new){
  3583. /* http://creativeandcritical.net/str-replace-c/ */
  3584.     if(strlen(str) > MAX_BUFFER){canvas_error("string argument too big");}
  3585.     char *ret, *r;
  3586.     const char *p, *q;
  3587.     size_t oldlen = strlen(old);
  3588.     size_t count = 0;
  3589.     size_t retlen = 0;
  3590.     size_t newlen = strlen(new);
  3591.     if (oldlen != newlen){
  3592.         for (count = 0, p = str; (q = strstr(p, old)) != NULL; p = q + oldlen){
  3593.             count++;
  3594.             retlen = p - str + strlen(p) + count * (newlen - oldlen);
  3595.         }
  3596.     }
  3597.     else
  3598.     {
  3599.         retlen = strlen(str);
  3600.     }
  3601.  
  3602.     if ((ret = malloc(retlen + 1)) == NULL){
  3603.         ret = NULL;
  3604.         canvas_error("string argument is NULL");
  3605.     }
  3606.     else
  3607.     {
  3608.         for (r = ret, p = str; (q = strstr(p, old)) != NULL; p = q + oldlen) {
  3609.             size_t l = q - p;
  3610.             memcpy(r, p, l);
  3611.             r += l;
  3612.             memcpy(r, new, newlen);
  3613.             r += newlen;
  3614.         }
  3615.         strcpy(r, p);
  3616.     }
  3617.     return ret;
  3618. }
  3619.  
  3620. /******************************************************************************/
  3621.  
  3622. char *get_color(FILE *infile , int last){
  3623.     int c,i = 0,is_hex = 0;
  3624.     char temp[MAX_COLOR_STRING], *string;
  3625.     const char *not_allowed = "0123456789";
  3626.     while(( (c=getc(infile)) != EOF ) && ( c != '\n') && ( c != ',' ) && ( c != ';' ) ){
  3627.         if( i > MAX_COLOR_STRING ){ canvas_error("colour string is too big ... ? ");}
  3628.         if( c == '#' ){
  3629.             is_hex = 1;
  3630.         }
  3631.         if( c != ' '){
  3632.             if( is_hex == 0 ){if(strchr(not_allowed,c) != 0){canvas_error("found something like a number...but is should have been a colour or #hex color number...<br />Do not use R,G,B !!! ");}}
  3633.             temp[i]=tolower(c);
  3634.             i++;
  3635.         }
  3636.     }
  3637.     if( ( c == '\n' || c == EOF || c == ';' ) && last == 0){canvas_error("expecting more arguments in command");}
  3638.     if( c == '\n' || c == ';' ){ done = TRUE; line_number++; }
  3639.     if( c == EOF ){finished = 1;}
  3640.     if( finished == 1 && last != 1 ){ canvas_error("expected more arguments");}
  3641.     temp[i]='\0';
  3642.     if( strlen(temp) == 0 ){ canvas_error("expected a colorname or hexnumber, but found nothing !!");}
  3643.     if( is_hex == 1 ){
  3644.         char red[3], green[3], blue[3];
  3645.         red[0]   = toupper(temp[1]); red[1]   = toupper(temp[2]); red[2]   = '\0';
  3646.         green[0] = toupper(temp[3]); green[1] = toupper(temp[4]); green[2] = '\0';
  3647.         blue[0]  = toupper(temp[5]); blue[1]  = toupper(temp[6]); blue[2]  = '\0';
  3648.         int r = (int) strtol(red,   NULL, 16);
  3649.         int g = (int) strtol(green, NULL, 16);
  3650.         int b = (int) strtol(blue,  NULL, 16);
  3651.         string = (char *)my_newmem(12);
  3652.         snprintf(string,11,"%d,%d,%d",r,g,b);
  3653.         return string;
  3654.     }
  3655.     else
  3656.     {
  3657.         string = (char *)my_newmem(sizeof(temp));
  3658.         snprintf(string,sizeof(temp),"%s",temp);
  3659.         for( i = 0; i < NUMBER_OF_COLORNAMES ; i++ ){
  3660.             if( strcmp( colors[i].name , string ) == 0 ){
  3661.                 return colors[i].rgb;
  3662.             }
  3663.         }
  3664.         canvas_error("I was expecting a color name or hexnumber...but found nothing.");
  3665.     }
  3666.     return "0,0,255";
  3667. }
  3668.  
  3669. char *get_string(FILE *infile,int last){ /* last = 0 : more arguments ; last=1 final argument */
  3670.     int c,i=0;
  3671.     char  temp[MAX_BUFFER], *string;
  3672.     while(( (c=getc(infile)) != EOF ) && ( c != '\n') ){
  3673.         temp[i]=c;
  3674.         i++;
  3675.         if(i > MAX_BUFFER){ canvas_error("string size too big...repeat command to fit string");break;}
  3676.     }
  3677.     if( ( c == '\n' || c == EOF ) && last == 0){canvas_error("expecting more arguments in command");}
  3678.     if( c == '\n') { done = TRUE; line_number++; }
  3679.     if( c == EOF ) {
  3680.         finished = 1;
  3681.         if( last != 1 ){ canvas_error("expected more arguments");}
  3682.     }
  3683.     temp[i]='\0';
  3684.     if( strlen(temp) == 0 ){ canvas_error("expected a word or string, but found nothing !!");}
  3685.     string=(char *)my_newmem(strlen(temp));
  3686.     snprintf(string,sizeof(temp),"%s",temp);
  3687.     return string;
  3688. }
  3689.  
  3690. char *get_string_argument(FILE *infile,int last){  /* last = 0 : more arguments ; last=1 final argument */
  3691.     int c,i=0;
  3692.     char temp[MAX_BUFFER], *string;
  3693.     while(( (c=getc(infile)) != EOF ) && ( c != '\n') && ( c != ',')){
  3694.         temp[i]=c;
  3695.         i++;
  3696.         if(i > MAX_BUFFER){ canvas_error("string size too big...will cut it off");break;}
  3697.     }
  3698.     if( ( c == '\n' || c == EOF) && last == 0){canvas_error("expecting more arguments in command");}
  3699.     if( c == '\n') { line_number++; }
  3700.     if( c == EOF ) {finished = 1;}
  3701.     if( finished == 1 && last != 1 ){ canvas_error("expected more arguments");}
  3702.     temp[i]='\0';
  3703. /*    
  3704.     17.10.2014 removed (question Perrin)
  3705.     may cause some unwanted effects...
  3706.     if( strlen(temp) == 0 ){ canvas_error("expected a word or string (without comma) , but found nothing !!");}
  3707. */
  3708.     string=(char *)my_newmem(sizeof(temp));
  3709.     snprintf(string,sizeof(temp),"%s",temp);
  3710.     done = TRUE;
  3711.     return string;
  3712. }
  3713.  
  3714. double get_real(FILE *infile, int last){ /* accept anything that looks like an number ?  last = 0 : more arguments ; last=1 final argument */
  3715.     int c,i=0,found_calc = 0;
  3716.     double y;
  3717.     char tmp[MAX_INT];
  3718.     /* these things are 'allowed functions' : *,^,+,-,/,(,),e,arc,cos,tan,pi,log,ln */
  3719.     const char *allowed = "earcostanpilog*+-/^()";/* assuming these are allowed stuff in a 'number'*/
  3720.     const char *not_allowed = "#bdfghjkmquvwxyz";/* avoid segmentation faults in a "atof()" and "wims eval" */
  3721.     while(( (c=getc(infile)) != EOF ) && ( c != ',') && (c != '\n') && ( c != ';')){
  3722.      if( c != ' ' ){
  3723.       if( i == 0 &&  c == '+' ){
  3724.        continue;
  3725.       }
  3726.       else
  3727.       {
  3728.        c = tolower(c);
  3729.        if( strchr(not_allowed,c) != 0 ){canvas_error("found a character not associated with a number...");}
  3730.        if( strchr(allowed,c) != 0 ){found_calc = 1;}/* hand the string over to wims eval() */
  3731.        tmp[i] = c;
  3732.        i++;
  3733.       }
  3734.      }
  3735.      if( i > MAX_INT - 1){canvas_error("number too large");}
  3736.     }
  3737.     if( ( c == '\n' || c == EOF || c == ';' ) && last == 0){canvas_error("expecting more arguments in command");}
  3738.     if( c == '\n' || c == ';' ){ done = TRUE; line_number++; }
  3739.     if( c == EOF ){done = TRUE ; finished = 1;}
  3740.     tmp[i]='\0';
  3741.     if( strlen(tmp) == 0 ){canvas_error("expected a number , but found nothing !!");}
  3742.     if( found_calc == 1 ){ /* use wims eval to calculate 2*pi/3 */
  3743.      void *f = eval_create(tmp);
  3744.      assert(f);if( f == NULL ){canvas_error("I'm having trouble parsing your \"expression\" ") ;}
  3745.      y = eval_x(f, 1);
  3746.      /* if function is bogus; y = 1 : so no core dumps */
  3747.      eval_destroy(f);
  3748.     }
  3749.     else
  3750.     {
  3751.      y = atof(tmp);
  3752.     }
  3753.     return y;
  3754. }
  3755.  
  3756.  
  3757. void canvas_error(char *msg){
  3758.     fprintf(stdout,"\n</script><hr /><span style=\"color:red\">FATAL syntax error:line %d : %s</span><hr />",line_number-1,msg);
  3759.     finished = 1;
  3760.     exit(EXIT_SUCCESS);
  3761. }
  3762.  
  3763.  
  3764. /* convert x/y coordinates to pixel */
  3765. int x2px(double x){
  3766.  return x*xsize/(xmax - xmin) -  xsize*xmin/(xmax - xmin);
  3767. }
  3768.  
  3769. int y2px(double y){
  3770.  return -1*y*ysize/(ymax - ymin) + ymax*ysize/(ymax - ymin);
  3771. }
  3772.  
  3773. double px2x(int x){
  3774.  return (x*(xmax - xmin)/xsize + xmin);
  3775. }
  3776. double px2y(int y){
  3777.  return (y*(ymax - ymin)/ysize + ymin);
  3778. }
  3779.  
  3780. void add_to_buffer(char *tmp){
  3781.  if( tmp == NULL || tmp == 0 ){ canvas_error("nothing to add_to_buffer()...");}
  3782.  /*  do we have enough space left in buffer[MAX_BUFFER] ? */
  3783.  int space_left = (int) (sizeof(buffer) - strlen(buffer));
  3784.  if( space_left > strlen(tmp)){
  3785.   strncat(buffer,tmp,space_left - 1);/* add safely "tmp" to the string buffer */
  3786.  }
  3787.  else
  3788.  {
  3789.   canvas_error("buffer is too big\n");
  3790.  }
  3791.  tmp = NULL;free(tmp);
  3792.  return;
  3793. }
  3794.  
  3795. void reset(){
  3796.  if(use_filled == TRUE){use_filled = FALSE;}
  3797.  if(use_dashed == TRUE){use_dashed = FALSE;}
  3798.  if(use_rotate == TRUE){use_rotate = FALSE;}
  3799.    onclick = 0;
  3800. }
  3801.  
  3802.  
  3803.  
  3804. /* What reply format in read_canvas();
  3805.  
  3806. note:if userdraw is combined with inputfields...every "userdraw" based answer will append "\n" and  inputfield.value()
  3807. 1 = x1,x2,x3,x4....x_n
  3808.     y1,y2,y3,y4....y_n
  3809.  
  3810.     x/y in pixels
  3811.  
  3812. 2 = x1,x2,x3,x4....x_n
  3813.     y1,y2,y3,y4....y_n
  3814.     x/y in  xrange / yrange coordinate system
  3815.  
  3816. 3 = x1,x2,x3,x4....x_n
  3817.     y1,y2,y3,y4....y_n
  3818.     r1,r2,r3,r4....r_n
  3819.  
  3820.     x/y in pixels
  3821.     r in pixels
  3822.  
  3823. 4 = x1,x2,x3,x4....x_n
  3824.     y1,y2,y3,y4....y_n
  3825.     r1,r2,r3,r4....r_n
  3826.  
  3827.     x/y in  xrange / yrange coordinate system
  3828.     r in pixels
  3829.  
  3830. 5 = Ax1,Ax2,Ax3,Ax4....Ax_n
  3831.     Ay1,Ay2,Ay3,Ay4....Ay_n
  3832.     Bx1,Bx2,Bx3,Bx4....Bx_n
  3833.     By1,By2,By3,By4....By_n
  3834.     Cx1,Cx2,Cx3,Cx4....Cx_n
  3835.     Cy1,Cy2,Cy3,Cy4....Cy_n
  3836.     ....
  3837.     Zx1,Zx2,Zx3,Zx4....Zx_n
  3838.     Zy1,Zy2,Zy3,Zy4....Zy_n
  3839.  
  3840.     x/y in pixels
  3841.  
  3842. 6 = Ax1,Ax2,Ax3,Ax4....Ax_n
  3843.     Ay1,Ay2,Ay3,Ay4....Ay_n
  3844.     Bx1,Bx2,Bx3,Bx4....Bx_n
  3845.     By1,By2,By3,By4....By_n
  3846.     Cx1,Cx2,Cx3,Cx4....Cx_n
  3847.     Cy1,Cy2,Cy3,Cy4....Cy_n
  3848.     ....
  3849.     Zx1,Zx2,Zx3,Zx4....Zx_n
  3850.     Zy1,Zy2,Zy3,Zy4....Zy_n
  3851.  
  3852.     x/y in  xrange / yrange coordinate system
  3853.  
  3854. 7 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n
  3855.  
  3856.     x/y in pixels
  3857.  
  3858. 8 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n
  3859.  
  3860.     x/y in  xrange / yrange coordinate system
  3861.  
  3862. 9 = x1:y1:r1,x2:y2:r2,x3:y3:r3,x4:y4:r3...x_n:y_n:r_n
  3863.  
  3864.     x/y in pixels
  3865.  
  3866. 10 = x1:y1:r1,x2:y2:r2,x3:y3:r3,x4:y4:r3...x_n:y_n:r_n
  3867.  
  3868.     x/y in  xrange / yrange coordinate system
  3869.  
  3870. 11 = Ax1,Ay1,Ax2,Ay2
  3871.      Bx1,By1,Bx2,By2
  3872.      Cx1,Cy1,Cx2,Cy2
  3873.      Dx1,Dy1,Dx2,Dy2
  3874.      ......
  3875.      Zx1,Zy1,Zx2,Zy2
  3876.  
  3877.     x/y in  xrange / yrange coordinate system
  3878.  
  3879. 12 = Ax1,Ay1,Ax2,Ay2
  3880.      Bx1,By1,Bx2,By2
  3881.      Cx1,Cy1,Cx2,Cy2
  3882.      Dx1,Dy1,Dx2,Dy2
  3883.      ......
  3884.      Zx1,Zy1,Zx2,Zy2
  3885.  
  3886.     x/y in pixels
  3887.  
  3888. 13 = Ax1:Ay1:Ax2:Ay2,Bx1:By1:Bx2:By2,Cx1:Cy1:Cx2:Cy2,Dx1:Dy1:Dx2:Dy2, ... ,Zx1:Zy1:Zx2:Zy2
  3889.  
  3890.     x/y in  xrange / yrange coordinate system
  3891. 14 = Ax1:Ay1:Ax2:Ay2,Bx1:By1:Bx2:By2....Zx1:Zy1:Zx2:Zy2
  3892.     x/y in pixels
  3893. 15 = reply from inputfields,textareas
  3894.     reply1,reply2,reply3,...,reply_n
  3895.     only fields set write (a.g. will not read 'readonly' inputfield values'
  3896.  
  3897. 16 = read mathml inputfields only
  3898.  
  3899. 17 = read userdraw text only (x1:y1:text1,x2:y2:text2...x_n:y_n:text_n
  3900.  when ready : calculate size_t of string via snprintf(NULL,0,"blah blah...");
  3901.  
  3902. 18 = read clock(s) : H1:M1:S1,H2:M2:S2,...H_n:M_n:S_n
  3903. 19 = return clicked object number (analogue to shape-library onclick)
  3904. 20 = return x/y-data in x-range/y-range of all 'draggable' images
  3905. 21 = return verbatim coordinates (x1:y1) (x2:y2)...(x_n:y_n)
  3906. 22 = array : x1,y1,x2,y2,x3,y3,x4,y4...x_n,y_n
  3907.     x/y in  xrange / yrange coordinate system
  3908. 23 = answertype for a polyline : remove multiple occurences  due to reclick on a point to create next polyline segment
  3909. 24 = read all inputfield values: even those set 'readonly'
  3910. 25 = return all userdrawn arcs in degrees:
  3911. 26 = return all userdrawn arcs in radians:
  3912. 27 = return (only) userdraw inputfields array: x1:y1:text1,x2:y2:text2...
  3913. 28 = x1,y1,r1,x2,y2,r2...x_n,y_n,r_n
  3914.     x/y/r in  xrange / yrange coordinate system: may be used to reinput into command
  3915.     'circles color,x1,y1,r1,x2,y2,r2...x_n,y_n,r_n'
  3916.     will not return anything else (e.g. no inputfields , text etc)
  3917. */
  3918.  
  3919.  
  3920. void add_read_canvas(int canvas_root_id,int type_reply,int reply_precision){
  3921. /* just 1 reply type allowed */
  3922. fprintf(js_include_file,"\
  3923. \n<!-- begin set_reply_precision() -->\n\
  3924. function set_reply_precision(){\
  3925. var len = userdraw_x.length;\
  3926. var prec = %d;\
  3927. for(var p = 0 ; p < len ; p++ ){\
  3928.  userdraw_x[p] = (Math.round(prec*userdraw_x[p]))/prec;\
  3929.  userdraw_y[p] = (Math.round(prec*userdraw_y[p]))/prec;\
  3930. };\
  3931. len = userdraw_radius.length;\
  3932. if( len > 0 ){\
  3933.  for(var p = 0 ; p < len ; p++ ){\
  3934.   userdraw_radius[p] = (Math.round(prec*userdraw_radius[p]))/prec;\
  3935.  };\
  3936. };\
  3937. };",reply_precision);
  3938.  
  3939. switch(type_reply){
  3940. /*
  3941. answers may have:
  3942. x-values,y-values,r-values,input-fields,mathml-inputfields,text-typed answers
  3943. */
  3944.     case 1: fprintf(js_include_file,"\
  3945. \n<!-- begin function 1 read_canvas%d() -->\n\
  3946. read_canvas%d = function(){\
  3947. if( userdraw_x.length == 0){alert(\"nothing drawn...\");return;}\
  3948. set_reply_precision();\
  3949. if( document.getElementById(\"canvas_input0\") || document.getElementById(\"mathml0\") ){\
  3950.  var p = 0;var input_reply = new Array();\
  3951.  if( document.getElementById(\"canvas_input0\")){\
  3952.   var t = 0;\
  3953.   while(document.getElementById(\"canvas_input\"+t)){\
  3954.    if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
  3955.     input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
  3956.     p++;\
  3957.    };\
  3958.    t++;\
  3959.   };\
  3960.  };\
  3961.  if( typeof userdraw_text != 'undefined' ){\
  3962.   return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+input_reply + \"\\n\"+userdraw_text;\
  3963.  }\
  3964.  else\
  3965.  {\
  3966.   return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+input_reply;\
  3967.  }\
  3968. }\
  3969. else\
  3970. {\
  3971.  if( typeof userdraw_text != 'undefined' ){\
  3972.   return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+userdraw_text;\
  3973.  }\
  3974.  else\
  3975.  {\
  3976.   return userdraw_x+\"\\n\"+userdraw_y;\
  3977.  }\
  3978. };\
  3979. };\n\
  3980. <!-- end function 1 read_canvas%d() -->",canvas_root_id,canvas_root_id,canvas_root_id);
  3981.     break;
  3982.     case 2: fprintf(js_include_file,"\
  3983. \n<!-- begin function 2 read_canvas%d() -->\n\
  3984. read_canvas%d = function(){\
  3985. if( userdraw_x.length == 0){alert(\"nothing drawn...\");return;}\
  3986. set_reply_precision();\
  3987. var reply_x = new Array();var reply_y = new Array();var p = 0;\
  3988. var prec = %d;\
  3989. while(userdraw_x[p]){\
  3990.  reply_x[p] = (Math.round(prec*(px2x(userdraw_x[p]))))/prec;\
  3991.  reply_y[p] = (Math.round(prec*(px2y(userdraw_y[p]))))/prec;\
  3992.  p++;\
  3993. };\
  3994. if(p == 0){alert(\"nothing drawn...\");return;};\
  3995. if( document.getElementById(\"canvas_input0\")){\
  3996.  var p = 0;var input_reply = new Array();\
  3997.  if( document.getElementById(\"canvas_input0\")){\
  3998.   var t = 0;\
  3999.   while(document.getElementById(\"canvas_input\"+t)){\
  4000.    if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
  4001.     input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
  4002.     p++;\
  4003.    };\
  4004.    t++;\
  4005.   };\
  4006.  };\
  4007.  if( typeof userdraw_text != 'undefined' ){\
  4008.   return reply_x+\"\\n\"+reply_y+\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
  4009.  }\
  4010.  else\
  4011.  {\
  4012.   return reply_x+\"\\n\"+reply_y+\"\\n\"+input_reply;\
  4013.  }\
  4014. }\
  4015. else\
  4016. {\
  4017.  if( typeof userdraw_text != 'undefined' ){\
  4018.   return reply_x+\"\\n\"+reply_y+\"\\n\"+userdraw_text;\
  4019.  }\
  4020.  else\
  4021.  {\
  4022.   return reply_x+\"\\n\"+reply_y;\
  4023.  };\
  4024. };\
  4025. };\n\
  4026. <!-- end function 2 read_canvas%d() -->",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
  4027.     break;
  4028.     case 3: fprintf(js_include_file,"\
  4029. \n<!-- begin function 3 read_canvas%d() -->\n\
  4030. read_canvas%d = function(){\
  4031. if( userdraw_x.length == 0){alert(\"nothing drawn...\");return;}\
  4032. set_reply_precision();\
  4033. if( document.getElementById(\"canvas_input0\") || document.getElementById(\"mathml0\") ){\
  4034.  var p = 0;var input_reply = new Array();\
  4035.  if( document.getElementById(\"canvas_input0\")){\
  4036.   var t = 0;\
  4037.   while(document.getElementById(\"canvas_input\"+t)){\
  4038.    if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
  4039.     input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
  4040.     p++;\
  4041.    };\
  4042.    t++;\
  4043.   };\
  4044.  };\
  4045.  if( typeof userdraw_text != 'undefined' ){\
  4046.   return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+userdraw_radius+\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
  4047.  }\
  4048.  else\
  4049.  {\
  4050.   return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+userdraw_radius+\"\\n\"+input_reply;\
  4051.  }\
  4052. }\
  4053. else\
  4054. {\
  4055.  if( typeof userdraw_text != 'undefined' ){\
  4056.   return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+userdraw_radius+\"\\n\"+userdrawW_text;\
  4057.  }\
  4058.  else\
  4059.  {\
  4060.   return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+userdraw_radius;\
  4061.  }\
  4062. }\
  4063. };\n\
  4064. <!-- end function 3 read_canvas%d() -->",canvas_root_id,canvas_root_id,canvas_root_id);
  4065.     break;
  4066.     case 4: fprintf(js_include_file,"\
  4067. \n<!-- begin function 4 read_canvas%d() -->\n\
  4068. read_canvas%d = function(){\
  4069. var prec = %d;\
  4070. var reply_x = new Array();var reply_y = new Array();var p = 0;\
  4071. while(userdraw_x[p]){\
  4072.  reply_x[p] = (Math.round(prec*(px2x(userdraw_x[p]))))/prec;\
  4073.  reply_y[p] = (Math.round(prec*(px2y(userdraw_y[p]))))/prec;;\
  4074.  p++;\
  4075. };\
  4076. if(p == 0){alert(\"nothing drawn...\");return;};\
  4077. if( document.getElementById(\"canvas_input0\") || document.getElementById(\"mathml0\") ){\
  4078.  var p = 0;var input_reply = new Array();\
  4079.  if( document.getElementById(\"canvas_input0\")){\
  4080.   var t = 0;\
  4081.   while(document.getElementById(\"canvas_input\"+t)){\
  4082.    if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
  4083.     input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
  4084.     p++;\
  4085.    };\
  4086.    t++;\
  4087.   };\
  4088.  };\
  4089.  if( typeof userdraw_text != 'undefined' ){\
  4090.   return reply_x+\"\\n\"+reply_y +\"\\n\"+userdraw_radius+\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
  4091.  }\
  4092.  else\
  4093.  {\
  4094.   return reply_x+\"\\n\"+reply_y +\"\\n\"+userdraw_radius+\"\\n\"+input_reply;\
  4095.  }\
  4096. }\
  4097. else\
  4098. {\
  4099.  if( typeof userdraw_text != 'undefined' ){\
  4100.   return reply_x+\"\\n\"+reply_y+\"\\n\"+userdraw_radius+\"\\n\"+userdraw_text;\
  4101.  }\
  4102.  else\
  4103.  {\
  4104.   return reply_x+\"\\n\"+reply_y+\"\\n\"+userdraw_radius;\
  4105.  }\
  4106. };\
  4107. };\n\
  4108. <!-- end function 4 read_canvas%d() -->",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
  4109.     break;
  4110.     /*
  4111.         attention: we reset userdraw_x / userdraw_y  : because  userdraw_x = [][] userdraw_y = [][]
  4112.         used for userdraw multiple paths
  4113.     */
  4114.     case 5: fprintf(js_include_file,"\
  4115. \n<!-- begin function 5 read_canvas%d() -->\n\
  4116. read_canvas%d = function(){\
  4117. set_reply_precision();\
  4118. var p = 0;\
  4119. var reply = \"\";\
  4120. for(p = 0; p < userdraw_x.length;p++){\
  4121.  if(userdraw_x[p] != null ){\
  4122.   reply = reply + userdraw_x[p]+\"\\n\"+userdraw_y[p]+\"\\n\";\
  4123.  };\
  4124. };\
  4125. if(p == 0){alert(\"nothing drawn...\");return;};\
  4126. userdraw_x = [];userdraw_y = [];\
  4127. if( document.getElementById(\"canvas_input0\") || document.getElementById(\"mathml0\") ){\
  4128.  var p = 0;var input_reply = new Array();\
  4129.  if( document.getElementById(\"canvas_input0\")){\
  4130.   var t = 0;\
  4131.   while(document.getElementById(\"canvas_input\"+t)){\
  4132.    if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
  4133.     input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
  4134.     p++;\
  4135.    };\
  4136.    t++;\
  4137.   };\
  4138.  };\
  4139.  if( typeof userdraw_text != 'undefined' ){\
  4140.   return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
  4141.  }\
  4142.  else\
  4143.  {\
  4144.   return reply +\"\\n\"+input_reply;\
  4145.  }\
  4146. }\
  4147. else\
  4148. {\
  4149.  if( typeof userdraw_text != 'undefined' ){\
  4150.   return reply+\"\\n\"+userdraw_text;\
  4151.  }\
  4152.  else\
  4153.  {\
  4154.   return reply;\
  4155.  }\
  4156. };\
  4157. };\n\
  4158. <!-- end function 5 read_canvas%d() -->",canvas_root_id,canvas_root_id,canvas_root_id);
  4159.     break;
  4160.     /*
  4161.         attention: we reset userdraw_x / userdraw_y  : because  userdraw_x = [][] userdraw_y = [][]
  4162.         used for userdraw multiple paths
  4163.     */
  4164.     case 6: fprintf(js_include_file,"\
  4165. \n<!-- begin function 6 read_canvas%d() -->\n\
  4166. read_canvas%d = function(){\
  4167. var p = 0;\
  4168. var reply = \"\";\
  4169. var tmp_x = new Array();\
  4170. var tmp_y = new Array();\
  4171. var prec = %d;\
  4172. for(p = 0 ; p < userdraw_x.length; p++){\
  4173.  tmp_x = userdraw_x[p];\
  4174.  tmp_y = userdraw_y[p];\
  4175.  if(tmp_x != null){\
  4176.   for(var i = 0 ; i < tmp_x.length ; i++){\
  4177.    tmp_x[i] = (Math.round(prec*(px2x(tmp_x[i]))))/prec;\
  4178.    tmp_y[i] = (Math.round(prec*(px2y(tmp_y[i]))))/prec;\
  4179.   };\
  4180.   reply = reply + tmp_x + \"\\n\" + tmp_y +\"\\n\";\
  4181.  };\
  4182. };\
  4183. if(p == 0){alert(\"nothing drawn...\");return;};\
  4184. userdraw_x = [];userdraw_y = [];\
  4185. if( document.getElementById(\"canvas_input0\") ){\
  4186.  var p = 0;var input_reply = new Array();\
  4187.  if( document.getElementById(\"canvas_input0\")){\
  4188.   var t = 0;\
  4189.   while(document.getElementById(\"canvas_input\"+t)){\
  4190.    if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
  4191.     input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
  4192.     p++;\
  4193.    };\
  4194.    t++;\
  4195.   };\
  4196.  };\
  4197.  if( typeof userdraw_text != 'undefined' ){\
  4198.   return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
  4199.  }\
  4200.  else\
  4201.  {\
  4202.   return reply +\"\\n\"+input_reply;\
  4203.  }\
  4204. }\
  4205. else\
  4206. {\
  4207.  if( typeof userdraw_text != 'undefined' ){\
  4208.   return reply +\"\\n\"+userdraw_text;\
  4209.  }\
  4210.  else\
  4211.  {\
  4212.   return reply;\
  4213.  }\
  4214. };\
  4215. };\n\
  4216. <!-- end function 6 read_canvas%d() -->",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
  4217.     break;
  4218.     case 7: fprintf(js_include_file,"\
  4219. \n<!-- begin function 7 read_canvas%d() -->\n\
  4220. read_canvas%d = function(){\
  4221. set_reply_precision();\
  4222. var reply = new Array();\
  4223. var p = 0;\
  4224. while(userdraw_x[p]){\
  4225.  reply[p] = userdraw_x[p] +\":\" + userdraw_y[p];\
  4226.  p++;\
  4227. };\
  4228. if(p == 0){alert(\"nothing drawn...\");return;};\
  4229. if( document.getElementById(\"canvas_input0\") ){\
  4230.  var p = 0;var input_reply = new Array();\
  4231.  if( document.getElementById(\"canvas_input0\")){\
  4232.   var t = 0;\
  4233.   while(document.getElementById(\"canvas_input\"+t)){\
  4234.    if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
  4235.     input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
  4236.     p++;\
  4237.    };\
  4238.    t++;\
  4239.   };\
  4240.  };\
  4241.  if( typeof userdraw_text != 'undefined' ){\
  4242.   return reply+\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
  4243.  }\
  4244.  else\
  4245.  {\
  4246.   return reply+\"\\n\"+input_reply;\
  4247.  }\
  4248. }\
  4249. else\
  4250. {\
  4251.  if( typeof userdraw_text != 'undefined' ){\
  4252.   return reply+\"\\n\"+userdraw_text;\
  4253.  }\
  4254.  else\
  4255.  {\
  4256.   return reply;\
  4257.  }\
  4258. };\
  4259. };\n\
  4260. <!-- end function 7 read_canvas%d() -->",canvas_root_id,canvas_root_id,canvas_root_id);
  4261.     break;
  4262.     case 8: fprintf(js_include_file,"\
  4263. \n<!-- begin function 8 read_canvas%d() -->\n\
  4264. read_canvas%d = function(){\
  4265. var reply = new Array();\
  4266. var p = 0;\
  4267. var prec = %d;\
  4268. while(userdraw_x[p]){\
  4269.  reply[p] = (Math.round(prec*(px2x(userdraw_x[p]))))/prec +\":\" + (Math.round(prec*(px2y(userdraw_y[p]))))/prec;\
  4270.  p++;\
  4271. };\
  4272. if(p == 0){alert(\"nothing drawn...\");return;};\
  4273. if( document.getElementById(\"canvas_input0\") || document.getElementById(\"mathml0\") ){\
  4274.  var p = 0;var input_reply = new Array();\
  4275.  if( document.getElementById(\"canvas_input0\")){\
  4276.   var t = 0;\
  4277.   while(document.getElementById(\"canvas_input\"+t)){\
  4278.    if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
  4279.     input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
  4280.     p++;\
  4281.    };\
  4282.    t++;\
  4283.   };\
  4284.  };\
  4285.  if( typeof userdraw_text != 'undefined' ){\
  4286.   return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
  4287.  }\
  4288.  else\
  4289.  {\
  4290.   return reply +\"\\n\"+input_reply;\
  4291.  }\
  4292. }\
  4293. else\
  4294. {\
  4295.  if( typeof userdraw_text != 'undefined' ){\
  4296.   return reply +\"\\n\"+userdraw_text;\
  4297.  }\
  4298.  else\
  4299.  {\
  4300.   return reply;\
  4301.  }\
  4302. };\
  4303. };\n\
  4304. <!-- end function 8 read_canvas%d() -->",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
  4305.     break;
  4306.     case 9: fprintf(js_include_file,"\
  4307. \n<!-- begin function 9 read_canvas%d() -->\n\
  4308. read_canvas%d = function(){\
  4309. set_reply_precision();\
  4310. var reply = new Array();\
  4311. var p = 0;\
  4312. while(userdraw_x[p]){\
  4313.  reply[p] = userdraw_x[p] +\":\" + userdraw_y[p] + \":\" + userdraw_radius[p];\
  4314.  p++;\
  4315. };\
  4316. if(p == 0){alert(\"nothing drawn...\");return;};\
  4317. if( document.getElementById(\"canvas_input0\") ){\
  4318.  var p = 0;var input_reply = new Array();\
  4319.  if( document.getElementById(\"canvas_input0\")){\
  4320.   var t = 0;\
  4321.   while(document.getElementById(\"canvas_input\"+t)){\
  4322.    if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
  4323.     input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
  4324.     p++;\
  4325.    };\
  4326.    t++;\
  4327.   };\
  4328.  };\
  4329.  if( typeof userdraw_text != 'undefined' ){\
  4330.   return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
  4331.  }\
  4332.  else\
  4333.  {\
  4334.   return reply +\"\\n\"+input_reply;\
  4335.  }\
  4336. }\
  4337. else\
  4338. {\
  4339.  if( typeof userdraw_text != 'undefined' ){\
  4340.   return reply +\"\\n\"+userdraw_text;\
  4341.  }\
  4342.  else\
  4343.  {\
  4344.   return reply;\
  4345.  }\
  4346. };\
  4347. };\n\
  4348. <!-- end function 9 read_canvas%d() -->",canvas_root_id,canvas_root_id,canvas_root_id);
  4349.     break;
  4350.     case 10: fprintf(js_include_file,"\
  4351. \n<!-- begin function 10 read_canvas%d() -->\n\
  4352. read_canvas%d = function(){\
  4353. var reply = new Array();\
  4354. var p = 0;\
  4355. var prec = %d;\
  4356. while(userdraw_x[p]){\
  4357.  reply[p] = (Math.round(prec*(px2x(userdraw_x[p]))))/prec +\":\" + (Math.round(prec*(px2y(userdraw_y[p]))))/prec +\":\" + (Math.round(prec*userdraw_radius[p]))/prec;\
  4358.  p++;\
  4359. };\
  4360. if(p == 0){alert(\"nothing drawn...\");return;};\
  4361. if( document.getElementById(\"canvas_input0\") ){\
  4362.  var p = 0;var input_reply = new Array();\
  4363.  if( document.getElementById(\"canvas_input0\")){\
  4364.   var t = 0;\
  4365.   while(document.getElementById(\"canvas_input\"+t)){\
  4366.    if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
  4367.     input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
  4368.     p++;\
  4369.    };\
  4370.    t++;\
  4371.   };\
  4372.  };\
  4373.  if( typeof userdraw_text != 'undefined' ){\
  4374.   return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
  4375.  }\
  4376.  else\
  4377.  {\
  4378.   return reply +\"\\n\"+input_reply;\
  4379.  }\
  4380. }\
  4381. else\
  4382. {\
  4383.  if( typeof userdraw_text != 'undefined' ){\
  4384.   return reply +\"\\n\"+userdraw_text;\
  4385.  }\
  4386.  else\
  4387.  {\
  4388.   return reply;\
  4389.  }\
  4390. };\
  4391. };\n\
  4392. <!-- end function 10 read_canvas%d() -->",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
  4393.     break;
  4394.     case 11: fprintf(js_include_file,"\
  4395. \n<!-- begin function 11 read_canvas%d() -->\n\
  4396. read_canvas%d = function(){\
  4397. var reply = \"\";\
  4398. var p = 0;\
  4399. var prec = %d;\
  4400. while(userdraw_x[p]){\
  4401.  reply = reply + (Math.round(prec*(px2x(userdraw_x[p]))))/prec +\",\" + (Math.round(prec*(px2y(userdraw_y[p]))))/prec +\",\" + (Math.round(prec*(px2x(userdraw_x[p+1]))))/prec +\",\" + (Math.round(prec*(px2y(userdraw_y[p+1]))))/prec +\"\\n\" ;\
  4402.  p = p+2;\
  4403. };\
  4404. if(p == 0){alert(\"nothing drawn...\");return;};\
  4405. if( document.getElementById(\"canvas_input0\") || document.getElementById(\"mathml0\") ){\
  4406.  var p = 0;var input_reply = new Array();\
  4407.  if( document.getElementById(\"canvas_input0\")){\
  4408.   var t = 0;\
  4409.   while(document.getElementById(\"canvas_input\"+t)){\
  4410.    if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
  4411.     input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
  4412.     p++;\
  4413.    };\
  4414.    t++;\
  4415.   };\
  4416.  };\
  4417.  if( typeof userdraw_text != 'undefined' ){\
  4418.   return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
  4419.  }\
  4420.  else\
  4421.  {\
  4422.   return reply +\"\\n\"+input_reply;\
  4423.  }\
  4424. }\
  4425. else\
  4426. {\
  4427.  if( typeof userdraw_text != 'undefined' ){\
  4428.   return reply +\"\\n\"+userdraw_text;\
  4429.  }\
  4430.  else\
  4431.  {\
  4432.   return reply;\
  4433.  }\
  4434. };\
  4435. };\n\
  4436. <!-- end function 11 read_canvas%d() -->",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
  4437.     break;
  4438.     case 12: fprintf(js_include_file,"\
  4439. \n<!-- begin function 12 read_canvas%d() -->\n\
  4440. read_canvas%d = function(){\
  4441. set_reply_precision();\
  4442. var reply = \"\";\
  4443. var p = 0;\
  4444. for(p = 0; p< userdraw_x.lenght;p = p+2){\
  4445.  if(userdraw_x[p] != null){\
  4446.    reply = reply + userdraw_x[p] +\",\" + userdraw_y[p] +\",\" + userdraw_x[p+1] +\",\" + userdraw_y[p+1] +\"\\n\" ;\
  4447.  };\
  4448. };\
  4449. if(p == 0){alert(\"nothing drawn...\");return;};\
  4450. if( document.getElementById(\"canvas_input0\") ){\
  4451.  var p = 0;var input_reply = new Array();\
  4452.  if( document.getElementById(\"canvas_input0\")){\
  4453.   var t = 0;\
  4454.   while(document.getElementById(\"canvas_input\"+t)){\
  4455.    if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
  4456.     input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
  4457.     p++;\
  4458.    };\
  4459.    t++;\
  4460.   };\
  4461.  };\
  4462.  if( typeof userdraw_text != 'undefined' ){\
  4463.   return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
  4464.  }\
  4465.  else\
  4466.  {\
  4467.   return reply +\"\\n\"+input_reply;\
  4468.  }\
  4469. }\
  4470. else\
  4471. {\
  4472.  if( typeof userdraw_text != 'undefined' ){\
  4473.   return reply +\"\\n\"+userdraw_text\
  4474.  }\
  4475.  else\
  4476.  {\
  4477.   return reply;\
  4478.  }\
  4479. };\
  4480. };\n\
  4481. <!-- end function 12 read_canvas%d() -->",canvas_root_id,canvas_root_id,canvas_root_id);
  4482.     break;
  4483.     case 13: fprintf(js_include_file,"\
  4484. \n<!-- begin function 13 read_canvas%d() -->\n\
  4485. read_canvas%d = function(){\
  4486. var reply = new Array();\
  4487. var p = 0;var i = 0;\
  4488. var prec = %d;\
  4489. while(userdraw_x[p]){\
  4490.  reply[i] = (Math.round(prec*(px2x(userdraw_x[p]))))/prec +\":\" + (Math.round(prec*(px2y(userdraw_y[p]))))/prec +\":\" + (Math.round(prec*(px2x(userdraw_x[p+1]))))/prec +\":\" + (Math.round(prec*(px2y(userdraw_y[p+1]))))/prec;\
  4491.  p = p+2;i++;\
  4492. };\
  4493. if(p == 0){alert(\"nothing drawn...\");return;};\
  4494. if( document.getElementById(\"canvas_input0\") ){\
  4495.  var p = 0;var input_reply = new Array();\
  4496.  if( document.getElementById(\"canvas_input0\")){\
  4497.   var t = 0;\
  4498.   while(document.getElementById(\"canvas_input\"+t)){\
  4499.    if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
  4500.     input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
  4501.     p++;\
  4502.    };\
  4503.    t++;\
  4504.   };\
  4505.  };\
  4506.  if( typeof userdraw_text != 'undefined' ){\
  4507.   return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
  4508.  }\
  4509.  else\
  4510.  {\
  4511.   return reply +\"\\n\"+input_reply;\
  4512.  }\
  4513. }\
  4514. else\
  4515. {\
  4516.  if( typeof userdraw_text != 'undefined' ){\
  4517.   return reply +\"\\n\"+userdraw_text\
  4518.  }\
  4519.  else\
  4520.  {\
  4521.   return reply;\
  4522.  }\
  4523. };\
  4524. };\n\
  4525. <!-- end function 13 read_canvas%d() -->",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
  4526.     break;
  4527.     case 14: fprintf(js_include_file,"\
  4528. \n<!-- begin function 14 read_canvas%d() -->\n\
  4529. read_canvas%d = function(){\
  4530. set_reply_precision();\
  4531. var reply = new Array();\
  4532. var p = 0;var i = 0;\
  4533. while(userdraw_x[p]){\
  4534.  reply[i] = userdraw_x[p] +\":\" + userdraw_y[p] +\":\" + userdraw_x[p+1] +\":\" + userdraw_y[p+1];\
  4535.  p = p+2;i++;\
  4536. };\
  4537. if(p == 0){alert(\"nothing drawn...\");return;};\
  4538. if( document.getElementById(\"canvas_input0\") ){\
  4539.  var p = 0;var input_reply = new Array();\
  4540.  if( document.getElementById(\"canvas_input0\")){\
  4541.   var t = 0;\
  4542.   while(document.getElementById(\"canvas_input\"+t)){\
  4543.    if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
  4544.     input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
  4545.     p++;\
  4546.    };\
  4547.    t++;\
  4548.   };\
  4549.  };\
  4550.  if( typeof userdraw_text != 'undefined' ){\
  4551.   return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
  4552.  }\
  4553.  else\
  4554.  {\
  4555.   return reply +\"\\n\"+input_reply;\
  4556.  }\
  4557. }\
  4558. else\
  4559. {\
  4560.  if( typeof userdraw_text != 'undefined' ){\
  4561.   return reply +\"\\n\"+userdraw_text;\
  4562.  }\
  4563.  else\
  4564.  {\
  4565.   return reply;\
  4566.  }\
  4567. };\
  4568. };\n\
  4569. <!-- end function 14 read_canvas%d() -->",canvas_root_id,canvas_root_id,canvas_root_id);
  4570.     break;
  4571.     case 15: fprintf(js_include_file,"\
  4572. \n<!-- begin function 15  read_canvas%d() -->\n\
  4573. read_canvas%d = function(){\
  4574. var input_reply = new Array();\
  4575. var p = 0;\
  4576. if( document.getElementById(\"canvas_input0\")){\
  4577.  var t = 0;\
  4578.  while(document.getElementById(\"canvas_input\"+t)){\
  4579.   if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
  4580.    input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
  4581.    p++;\
  4582.   };\
  4583.   t++;\
  4584.  };\
  4585. };\
  4586. if( typeof userdraw_text != 'undefined' ){\
  4587.   return input_reply +\"\\n\"+userdraw_text;\
  4588. }\
  4589. else\
  4590. {\
  4591.  return input_reply;\
  4592. };\
  4593. };\n\
  4594. <!-- end function 15 read_canvas%d() -->",canvas_root_id,canvas_root_id,canvas_root_id);
  4595.     break;
  4596.     case 16: fprintf(js_include_file,"\
  4597. \n<!-- begin function 16 read_mathml() -->\n\
  4598. function read_mathml(){\
  4599. var reply = new Array();\
  4600. var p = 0;\
  4601. if( document.getElementById(\"mathml0\")){\
  4602.  while(document.getElementById(\"mathml\"+p)){\
  4603.   reply[p] = document.getElementById(\"mathml\"+p).value;\
  4604.   p++;\
  4605.  };\
  4606. };\
  4607. return reply;\
  4608. };\
  4609. this.read_mathml = read_mathml;\n\
  4610. <!-- end function 16 read_mathml() -->");
  4611.     break;
  4612.     case 17:  fprintf(js_include_file,"\
  4613. \n<!-- begin function 17 read_canvas%d() -->\n\
  4614. read_canvas%d = function(){\
  4615. if( userdraw_text.length == 0){alert(\"no text typed...\");return;}\
  4616. return userdraw_text;\
  4617. };\n\
  4618. <!-- end function 17 read_canvas%d() -->",canvas_root_id,canvas_root_id,canvas_root_id);
  4619.     break;
  4620.     case 18: fprintf(js_include_file,"\
  4621. \n<!-- begin function 18 read_canvas%d() -->\n\
  4622. read_canvas%d = function(){\
  4623. var p = 0;\
  4624. var reply = new Array();\
  4625. var name;\
  4626. var t = true;\
  4627. var h;var m;var s;\
  4628. while(t){\
  4629.  try{\
  4630.   name = eval('clocks'+p);\
  4631.   h = name.H;m = name.M;s = name.S;\
  4632.   if(s < 0){s = 60 + s;m = m - 1;};\
  4633.   if(m < 0){m = 60 + m;h = h - 1;};\
  4634.   if(h < 0){h = 12 + h;};\
  4635.   h = parseInt((h+m/60+s/3600)%%12);m = parseInt((m + s/60)%%60);s = parseInt(s%%60);\
  4636.   reply[p] = h+\":\"+m+\":\"+s;\
  4637.   p++;\
  4638.  }catch(e){t=false;};\
  4639. };\
  4640. if( p == 0 ){alert(\"clock(s) not modified...\");return;}\
  4641. return reply;\
  4642. };\n\
  4643. <!-- end function 18 read_canvas%d() -->",canvas_root_id,canvas_root_id,canvas_root_id);
  4644.     break;
  4645.     case 19: fprintf(js_include_file,"\
  4646. \n<!-- begin function 19 read_canvas%d() -->\n\
  4647. read_canvas%d = function(){\
  4648. return reply[0];\
  4649. };\n\
  4650. <!-- end function 19 read_canvas%d() -->",canvas_root_id,canvas_root_id,canvas_root_id);
  4651.     break;
  4652.     case 20: fprintf(js_include_file,"\
  4653. \n<!-- begin function 20 read_canvas%d() -->\n\
  4654. read_canvas%d = function(){\
  4655. var prec = %d;\
  4656. var len  = ext_drag_images.length;\
  4657. var reply = new Array(len);\
  4658. for(var p = 0 ; p < len ; p++){\
  4659.    var img = ext_drag_images[p];\
  4660.    reply[p] = (Math.round(prec*(px2x(img[6]))))/prec+\":\"+(Math.round(prec*(px2y(img[7]))))/prec;\
  4661. };\
  4662. return reply;\
  4663. };\n\
  4664. <!-- end function 20 read_canvas%d() -->",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
  4665.     break;
  4666.     case 21: fprintf(js_include_file,"\
  4667. \n<!-- begin function 21 read_canvas%d() -->\n\
  4668. read_canvas%d = function(){\
  4669. if( userdraw_x.length == 0){alert(\"nothing drawn...\");return;}\
  4670. var reply_coord = new Array();var p = 0;\
  4671. var prec = %d;\
  4672. while(userdraw_x[p]){\
  4673.  reply_coord[p] = \"(\"+(Math.round(prec*(px2x(userdraw_x[p]))))/prec+\":\"+(Math.round(prec*(px2y(userdraw_y[p]))))/prec+\")\";\
  4674.  p++;\
  4675. };\
  4676. if(p == 0){alert(\"nothing drawn...\");return;};\
  4677. if( document.getElementById(\"canvas_input0\") ){\
  4678.  var p = 0;var input_reply = new Array();\
  4679.  if( document.getElementById(\"canvas_input0\")){\
  4680.   var t = 0;\
  4681.   while(document.getElementById(\"canvas_input\"+t)){\
  4682.    if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
  4683.     input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
  4684.     p++;\
  4685.    };\
  4686.    t++;\
  4687.   };\
  4688.  };\
  4689.  if( typeof userdraw_text != 'undefined' ){\
  4690.   return reply_coord+\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
  4691.  }\
  4692.  else\
  4693.  {\
  4694.   return reply_coord+\"\\n\"+input_reply;\
  4695.  }\
  4696. }\
  4697. else\
  4698. {\
  4699.  if( typeof userdraw_text != 'undefined' ){\
  4700.   return reply_coord+\"\\n\"+userdraw_text;\
  4701.  }\
  4702.  else\
  4703.  {\
  4704.   return reply_coord;\
  4705.  };\
  4706. };\
  4707. };\n\
  4708. <!-- end function 21 read_canvas%d() -->",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
  4709.     break;
  4710.     case 22: fprintf(js_include_file,"\
  4711. \n<!-- begin function 22 read_canvas%d() -->\n\
  4712. read_canvas%d = function(){\
  4713. var reply = new Array();\
  4714. var lu = userdraw_x.length;\
  4715. if(lu == 0){alert(\"nothing drawn...\");return;};\
  4716. var idx = 0;\
  4717. var prec = %d;\
  4718. for(var p = 0 ; p < lu ; p++){\
  4719.  reply[idx] = (Math.round(prec*(px2x(userdraw_x[p]))))/prec;idx++;\
  4720.  reply[idx] = (Math.round(prec*(px2y(userdraw_y[p]))))/prec;idx++;\
  4721. };\
  4722. if( document.getElementById(\"canvas_input0\") ){\
  4723.  var p = 0;var input_reply = new Array();\
  4724.  if( document.getElementById(\"canvas_input0\")){\
  4725.   var t = 0;\
  4726.   while(document.getElementById(\"canvas_input\"+t)){\
  4727.    if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
  4728.     input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
  4729.     p++;\
  4730.    };\
  4731.    t++;\
  4732.   };\
  4733.  };\
  4734.  if( typeof userdraw_text != 'undefined' ){\
  4735.   return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
  4736.  }\
  4737.  else\
  4738.  {\
  4739.   return reply +\"\\n\"+input_reply;\
  4740.  }\
  4741. }\
  4742. else\
  4743. {\
  4744.  if( typeof userdraw_text != 'undefined' ){\
  4745.   return reply +\"\\n\"+userdraw_text;\
  4746.  }\
  4747.  else\
  4748.  {\
  4749.   return reply;\
  4750.  }\
  4751. };\
  4752. };\n\
  4753. <!-- end function 22 read_canvas%d() -->",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
  4754.     break;
  4755.     case 23: fprintf(js_include_file,"\
  4756. \n<!-- begin function 23 read_canvas%d() default 5 px marge -->\n\
  4757. read_canvas%d = function(){\
  4758. if( userdraw_x.length < 2){alert(\"nothing drawn...\");return;}\
  4759. var lu = userdraw_x.length;\
  4760. if( lu != userdraw_y.length ){ alert(\"x / y mismatch !\");return;}\
  4761. var reply_x = new Array();var reply_y = new Array();\
  4762. var marge = 5;var p = 0;\
  4763. var prec = %d;\
  4764. for(var i = 0; i < lu - 1 ; i++ ){\
  4765.  if( Math.abs(userdraw_x[i] - userdraw_x[i+1])){\
  4766.   reply_x[p] = (Math.round(prec*(px2x(userdraw_x[i]))))/prec;reply_y[p] = (Math.round(prec*(px2y(userdraw_y[i]))))/prec;\
  4767.   if( isNaN(reply_x[p]) || isNaN(reply_y[p]) ){ alert(\"hmmmm ?\");return; };\
  4768.   p++;\
  4769.  };\
  4770.  reply_x[p] = (Math.round(prec*(px2x(userdraw_x[lu-1]))))/prec;reply_y[p] = (Math.round(prec*(px2y(userdraw_y[lu-1]))))/prec;\
  4771. };\
  4772. if( document.getElementById(\"canvas_input0\")){\
  4773.  var p = 0;var input_reply = new Array();\
  4774.  if( document.getElementById(\"canvas_input0\")){\
  4775.   var t = 0;\
  4776.   while(document.getElementById(\"canvas_input\"+t)){\
  4777.    if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
  4778.     input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
  4779.     p++;\
  4780.    };\
  4781.    t++;\
  4782.   };\
  4783.  };\
  4784.  if( typeof userdraw_text != 'undefined' ){\
  4785.   return reply_x+\"\\n\"+reply_y+\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
  4786.  }\
  4787.  else\
  4788.  {\
  4789.   return reply_x+\"\\n\"+reply_y+\"\\n\"+input_reply;\
  4790.  }\
  4791. }\
  4792. else\
  4793. {\
  4794.  if( typeof userdraw_text != 'undefined' ){\
  4795.   return reply_x+\"\\n\"+reply_y+\"\\n\"+userdraw_text;\
  4796.  }\
  4797.  else\
  4798.  {\
  4799.   return reply_x+\"\\n\"+reply_y;\
  4800.  };\
  4801. };\
  4802. };\n\
  4803. <!-- end function 23 read_canvas%d() -->",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
  4804.     break;
  4805.     case 24: fprintf(js_include_file,"\n\
  4806. <!-- begin function 24  read_canvas%d() -->\n\
  4807. read_canvas%d = function(){\
  4808. var input_reply = new Array();\
  4809. var p = 0;\
  4810. if( document.getElementById(\"canvas_input0\")){\
  4811.  while(document.getElementById(\"canvas_input\"+p)){\
  4812.    input_reply[p] = document.getElementById(\"canvas_input\"+p).value;\
  4813.    p++;\
  4814.  };\
  4815.  return input_reply;\
  4816. };\
  4817. };\n\
  4818. <!-- end function 24 read_canvas%d() -->",canvas_root_id,canvas_root_id,canvas_root_id);
  4819.     break;
  4820.     case 25:
  4821.     fprintf(js_include_file,"\n<!-- begin function 25 read_canvas%d() : angle(s) in degrees-->\n\
  4822. read_canvas%d = function(){\
  4823. if( userdraw_radius.length < 1){alert(\"nothing drawn...\");return;}\
  4824. var lu = userdraw_radius.length;\
  4825. var prec = %d;\
  4826. var angle_reply = new Array(lu);\
  4827. for(var p = 0 ; p < lu ; p++){\
  4828.  angle_reply[p] = (Math.round(prec*180*(userdraw_radius[p])/Math.PI))/prec;\
  4829. };\
  4830. return angle_reply;\
  4831. };\n\
  4832. <!-- end function 25 read_canvas%d() -->",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
  4833.     break;
  4834.     case 26:
  4835.     fprintf(js_include_file,"\n<!-- begin function 26 read_canvas%d() : angle(s) in radians-->\n\
  4836. read_canvas%d = function(){\
  4837. if( userdraw_radius.length < 1){alert(\"nothing drawn...\");return;}\
  4838. var lu = userdraw_radius.length;\
  4839. var prec = %d;\
  4840. var angle_reply = new Array(lu);\
  4841. for(var p = 0 ; p < lu ; p++){\
  4842.  angle_reply[p] = (Math.round(prec*(userdraw_radius[p])))/prec;\
  4843. };\
  4844. return angle_reply;\
  4845. };\n\
  4846. <!-- end function 26 read_canvas%d() -->",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
  4847.     break;
  4848.     case 27:
  4849.     fprintf(js_include_file,"\n<!-- begin function 27 read_canvas%d()  : inputfield(s) location and their values : -->\n\
  4850. read_canvas%d = function(){\
  4851. var lu = userdraw_x.length;\
  4852. if( lu < 1){alert(\"nothing drawn...\");return;}\
  4853. set_reply_precision();\
  4854. var prec = %d;\
  4855. for(var p = 0 ; p < lu ; p++){\
  4856.   reply[p] = (Math.round(prec*(px2x(userdraw_x[p]))))/prec+\":\"+(Math.round(prec*(px2y(userdraw_y[p]))))/prec+\":\"+ document.getElementById(\"canvas_input\"+p).value;\
  4857. };\
  4858. return reply;\
  4859. };\n\
  4860. <!-- end function 27 read_canvas%d() -->",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
  4861.     break;
  4862.     case 28:
  4863.     fprintf(js_include_file,"\n<!-- begin function 28 read_canvas%d() -->\n\
  4864. read_canvas%d = function(){\
  4865. var prec = %d;\
  4866. var reply = new Array();var p = 0;\
  4867. var idx = 0;\
  4868. while(userdraw_x[p]){\
  4869.  reply[idx] = (Math.round(prec*(px2x(userdraw_x[p]))))/prec;\
  4870.  idx++;\
  4871.  reply[idx] = (Math.round(prec*(px2y(userdraw_y[p]))))/prec;\
  4872.  idx++;\
  4873.  reply[idx] = (Math.round(prec*(px2x(userdraw_radius[p]) - px2x(0))))/prec;\
  4874.  idx++;\
  4875.  p++;\
  4876. };\
  4877. if( p == 0){alert(\"nothing drawn...\");return;}\
  4878. return reply;\
  4879. };\n\
  4880. <!-- end function 4 read_canvas%d() -->",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
  4881.     break;
  4882.     default: canvas_error("hmmm unknown replyformat...");break;
  4883. }
  4884.  return;
  4885. }
  4886.  
  4887.  
  4888. /*
  4889.  add drawfunction :
  4890.  - functions used by userdraw_primitives (circle,rect,path,triangle...)
  4891.  - things not covered by the drag&drop library (static objects like parallel, lattice ,gridfill , imagefill)
  4892.  - grid / mathml
  4893.  - will not scale or zoom in
  4894.  - will not be filled via pixel operations like fill / floodfill / filltoborder / clickfill
  4895.  - is printed directly into 'js_include_file'
  4896. */
  4897.  
  4898. void add_javascript_functions(int js_functions[],int canvas_root_id){
  4899. int i;
  4900. for(i = 0 ; i < MAX_JS_FUNCTIONS; i++){
  4901.  if( js_functions[i] == 1){
  4902.     switch(i){
  4903.     case DRAG_EXTERNAL_IMAGE:
  4904. fprintf(js_include_file,"\n<!-- drag external images --->\n\
  4905. var external_canvas = create_canvas%d(7,xsize,ysize);\
  4906. var external_ctx = external_canvas.getContext(\"2d\");\
  4907. var external_canvas_rect = external_canvas.getBoundingClientRect();\
  4908. canvas_div.addEventListener(\"mousedown\",setxy,false);\
  4909. canvas_div.addEventListener(\"mouseup\",dragstop,false);\
  4910. canvas_div.addEventListener(\"mousemove\",dragxy,false);\
  4911. var selected_image = null;\
  4912. var ext_image_cnt = 0;\
  4913. var ext_drag_images = new Array();\
  4914. function drag_external_image(URL,sx,sy,swidth,sheight,x0,y0,width,height,idx,draggable){\
  4915. ext_image_cnt = idx;\
  4916. var image = new Image();\
  4917. image.src = URL;\
  4918. image.onload = function(){\
  4919.  if( x0 < 1 ){ x0 = 0; };if( y0 < 1 ){ y0 = 0; };if( sx < 1 ){ sx = 0; };if( sy < 1 ){ sy = 0; };\
  4920.  if( width < 1 ){ width = image.width; };if( height < 1 ){ height = image.height; };\
  4921.  if( swidth < 1 ){ swidth = image.width; };if( sheight < 1 ){ sheight = image.height; };\
  4922.  var img = new Array(10);\
  4923.  img[0] = draggable;img[1] = image;img[2] = sx;img[3] = sy;img[4] = swidth;img[5] = sheight;\
  4924.  img[6] = x0;img[7] = y0;img[8] = width;img[9] = height;\
  4925.  ext_drag_images[idx] = img;\
  4926.  external_ctx.drawImage(img[1],img[2],img[3],img[4],img[5],img[6],img[7],img[8],img[9]);\
  4927. };\
  4928. };\
  4929. function dragstop(evt){\
  4930. selected_image = null;return;\
  4931. };\
  4932. function dragxy(evt){\
  4933. if( selected_image != null ){\
  4934.  var xoff = (document.documentElement.scrollLeft ? document.documentElement.scrollLeft : document.body.scrollLeft);\
  4935.  var yoff = (document.documentElement.scrollTop ? document.documentElement.scrollTop : document.body.scrollTop);\
  4936.  var s_img = ext_drag_images[selected_image];\
  4937.  s_img[6] = evt.clientX - external_canvas_rect.left + xoff;\
  4938.  s_img[7] = evt.clientY - external_canvas_rect.top + yoff;\
  4939.  ext_drag_images[selected_image] = s_img;\
  4940.  external_ctx.clearRect(0,0,xsize,ysize);\
  4941.  for(var i = 0; i <= ext_image_cnt ; i++){\
  4942.   var img = ext_drag_images[i];\
  4943.   external_ctx.drawImage(img[1],img[2],img[3],img[4],img[5],img[6],img[7],img[8],img[9]);\
  4944.  };\
  4945. };\
  4946. };\
  4947. function setxy(evt){\
  4948. if( ! selected_image && evt.which == 1 ){\
  4949.  var xoff = (document.documentElement.scrollLeft ? document.documentElement.scrollLeft : document.body.scrollLeft);\
  4950.  var yoff = (document.documentElement.scrollTop ? document.documentElement.scrollTop : document.body.scrollTop);\
  4951.  var xm = evt.clientX - external_canvas_rect.left + xoff;\
  4952.  var ym = evt.clientY - external_canvas_rect.top + yoff;\
  4953.  for(var p = 0 ; p <= ext_image_cnt ; p++){\
  4954.   var img = ext_drag_images[p];\
  4955.   if( img[0] == 1 ){\
  4956.    var w = img.width;\
  4957.    var h = img.height;\
  4958.    if( xm > img[6] && xm < img[6] + img[4]){\
  4959.     if( ym > img[7] && ym < img[7] + img[5]){\
  4960.      img[6] = xm;\
  4961.      img[7] = ym;\
  4962.      ext_drag_images[p] = img;\
  4963.      selected_image = p;\
  4964.      dragxy(evt);\
  4965.     };\
  4966.    };\
  4967.   };\
  4968.  };\
  4969. }\
  4970. else\
  4971. {\
  4972.  selected_image = null;\
  4973. };\
  4974. };",canvas_root_id);
  4975.     break;
  4976.  
  4977.     case DRAW_EXTERNAL_IMAGE:
  4978. fprintf(js_include_file,"\n<!-- draw external images -->\n\
  4979. var draw_external_image = function(URL,sx,sy,swidth,sheight,x0,y0,width,height,draggable){\
  4980. var image = new Image();\
  4981. image.src = URL;\
  4982. var canvas_bg_div = document.getElementById(\"canvas_div%d\");\
  4983. image.onload = function(){\
  4984.  if( x0 < 1 ){ x0 = 0; };\
  4985.  if( y0 < 1 ){ y0 = 0; };\
  4986.  if( sx < 1 ){ sx = 0; };\
  4987.  if( sy < 1 ){ sy = 0; };\
  4988.  if( width < 1 ){ width = image.width;};\
  4989.  if( height < 1 ){ height = image.height;};\
  4990.  if( swidth < 1 ){ swidth = image.width;};\
  4991.  if( sheight < 1 ){ sheight = image.height;};\
  4992.  var ml = x0 - sx;\
  4993.  var mh = y0 - sy;\
  4994.  canvas_bg_div.style.backgroundPosition= \"left \"+ml+\"px top \"+mh+\"px\";\
  4995.  canvas_bg_div.style.backgroundSize = width+\"px \"+height+\"px\";\
  4996.  canvas_bg_div.style.backgroundRepeat = \"no-repeat\";\
  4997.  canvas_bg_div.style.backgroundPosition= sx+\"px \"+sy+\"px\";\
  4998.  canvas_bg_div.style.backgroundImage = \"url(\" + URL + \")\";\
  4999. };\
  5000. };",canvas_root_id);
  5001.     break;
  5002.     case DRAW_GRIDFILL:/* not used for userdraw */
  5003. fprintf(js_include_file,"\n<!-- draw gridfill -->\n\
  5004. var draw_gridfill = function(canvas_type,x0,y0,dx,dy,linewidth,color,opacity,xsize,ysize){\
  5005. var obj;\
  5006. if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
  5007.  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
  5008. }\
  5009. else\
  5010. {\
  5011.  obj = create_canvas%d(canvas_type,xsize,ysize);\
  5012. };\
  5013. var ctx = obj.getContext(\"2d\");\
  5014. var x,y;\
  5015. snap_x = dx;snap_y = dy;\
  5016. ctx.save();\
  5017. ctx.strokeStyle=\"rgba(\"+color+\",\"+opacity+\")\";\
  5018. for( x = x0 ; x < xsize+dx ; x = x + dx ){\
  5019.    ctx.moveTo(x,y0);\
  5020.    ctx.lineTo(x,ysize);\
  5021. };\
  5022. for( y = y0 ; y < ysize+dy; y = y + dy ){\
  5023.    ctx.moveTo(x0,y);\
  5024.    ctx.lineTo(xsize,y);\
  5025. };\
  5026. ctx.stroke();\
  5027. ctx.restore();\
  5028. return;};",canvas_root_id,canvas_root_id,canvas_root_id);
  5029.     break;
  5030.  
  5031.     case DRAW_IMAGEFILL:/* not  used for userdraw */
  5032. fprintf(js_include_file,"\n<!-- draw imagefill -->\n\
  5033. var draw_imagefill = function(canvas_type,x0,y0,URL,xsize,ysize){\
  5034. var obj;\
  5035. if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
  5036.  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
  5037. }\
  5038. else\
  5039. {\
  5040.  obj = create_canvas%d(canvas_type,xsize,ysize);\
  5041. };\
  5042. var ctx = obj.getContext(\"2d\");\
  5043. ctx.save();\
  5044. var img = new Image();\
  5045. img.src = URL;\
  5046. img.onload = function(){\
  5047.  if( (img.width > xsize-x0) && (img.height > ysize-y0) ){\
  5048.    ctx.drawImage(img,x0,y0,xsize,ysize);\
  5049.  }\
  5050.  else\
  5051.  {\
  5052.    var repeat = \"repeat\";\
  5053.    if(img.width > xsize - x0){\
  5054.         repeat = \"repeat-y\";\
  5055.    }\
  5056.    else\
  5057.    {\
  5058.     if( img.height > ysize -x0 ){\
  5059.      repeat = \"repeat-x\";\
  5060.     }\
  5061.    }\
  5062.    var pattern = ctx.createPattern(img,repeat);\
  5063.    ctx.rect(x0,y0,xsize,ysize);\
  5064.    ctx.fillStyle = pattern;\
  5065.  }\
  5066.  ctx.fill();\
  5067. };\
  5068. ctx.restore();\
  5069. return;\
  5070. };",canvas_root_id,canvas_root_id,canvas_root_id);
  5071.     break;
  5072.  
  5073.     case DRAW_DOTFILL:/* not  used for userdraw */
  5074. fprintf(js_include_file,"\n<!-- draw dotfill -->\n\
  5075. var draw_dotfill = function(canvas_type,x0,y0,dx,dy,radius,color,opacity,xsize,ysize){\
  5076. var obj;\
  5077. if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
  5078.  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
  5079. }\
  5080. else\
  5081. {\
  5082.  obj = create_canvas%d(canvas_type,xsize,ysize);\
  5083. };\
  5084. var ctx = obj.getContext(\"2d\");\
  5085. var x,y;\
  5086. ctx.closePath();\
  5087. ctx.save();\
  5088. snap_x = dx;snap_y = dy;\
  5089. ctx.fillStyle=\"rgba(\"+color+\",\"+opacity+\")\";\
  5090. for( x = x0 ; x < xsize+dx ; x = x + dx ){\
  5091.  for( y = y0 ; y < ysize+dy ; y = y + dy ){\
  5092.   ctx.arc(x,y,radius,0,2*Math.PI,false);\
  5093.   ctx.closePath();\
  5094.  }\
  5095. }\
  5096. ctx.fill();\
  5097. ctx.restore();\
  5098. return;};",canvas_root_id,canvas_root_id,canvas_root_id);
  5099.     break;
  5100.  
  5101.     case DRAW_DIAMONDFILL:/* not used for userdraw */
  5102. fprintf(js_include_file,"\n<!-- draw hatch fill -->\n\
  5103. var draw_diamondfill = function(canvas_type,x0,y0,dx,dy,linewidth,stroke_color,stroke_opacity,xsize,ysize){\
  5104.  var obj;\
  5105. if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
  5106.  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
  5107. }\
  5108. else\
  5109. {\
  5110.  obj = create_canvas%d(canvas_type,xsize,ysize);\
  5111. };\
  5112. var ctx = obj.getContext(\"2d\");\
  5113. var x;\
  5114. var y;\
  5115. ctx.save();\
  5116. ctx.lineWidth = linewidth;\
  5117. ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  5118. y = ysize;\
  5119. for( x = x0 ; x < xsize ; x = x + dx ){\
  5120.  ctx.moveTo(x,y0);\
  5121.  ctx.lineTo(xsize,y);\
  5122.  y = y - dy;\
  5123. };\
  5124. y = y0;\
  5125. for( x = xsize ; x > 0 ; x = x - dx){\
  5126.  ctx.moveTo(x,ysize);\
  5127.  ctx.lineTo(x0,y);\
  5128.  y = y + dy;\
  5129. };\
  5130. x = x0;\
  5131. for( y = y0 ; y < ysize ; y = y + dy ){\
  5132.  ctx.moveTo(xsize,y);\
  5133.  ctx.lineTo(x,ysize);\
  5134.  x = x + dx;\
  5135. };\
  5136. x = xsize;\
  5137. for( y = ysize ; y > y0 ; y = y - dy ){\
  5138.  ctx.moveTo(x,y0);\
  5139.  ctx.lineTo(x0,y);\
  5140.  x = x - dx;\
  5141. };\
  5142. ctx.stroke();\
  5143. ctx.restore();\
  5144. return;\
  5145. }",canvas_root_id,canvas_root_id,canvas_root_id);
  5146.     break;
  5147.  
  5148.     case DRAW_HATCHFILL:/* not used for userdraw */
  5149. fprintf(js_include_file,"\n<!-- draw hatch fill -->\n\
  5150. var draw_hatchfill = function(canvas_type,x0,y0,dx,dy,linewidth,stroke_color,stroke_opacity,xsize,ysize){\
  5151.  var obj;\
  5152. if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
  5153.  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
  5154. }\
  5155. else\
  5156. {\
  5157.  obj = create_canvas%d(canvas_type,xsize,ysize);\
  5158. };\
  5159. var ctx = obj.getContext(\"2d\");\
  5160. var x;\
  5161. var y;\
  5162. ctx.save();\
  5163. ctx.lineWidth = linewidth;\
  5164. ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  5165. y = ysize;\
  5166. for( x = x0 ; x < xsize ; x = x + dx ){\
  5167.  ctx.moveTo(x,y0);\
  5168.  ctx.lineTo(xsize,y);\
  5169.  y = y - dy;\
  5170. };\
  5171. y = y0;\
  5172. for( x = xsize ; x >= dx ; x = x - dx){\
  5173.  ctx.moveTo(x,ysize);\
  5174.  ctx.lineTo(x0,y);\
  5175.  y = y + dy;\
  5176. };\
  5177. ctx.stroke();\
  5178. ctx.restore();\
  5179. return;\
  5180. };",canvas_root_id,canvas_root_id,canvas_root_id);
  5181.     break;
  5182.     case DRAW_CIRCLES:/*  used for userdraw */
  5183. fprintf(js_include_file,"\n<!-- draw circles -->\n\
  5184. var draw_circles = function(ctx,x_points,y_points,radius,line_width,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype0,dashtype1,use_rotate,angle,use_affine,affine_matrix){\
  5185. ctx.save();\
  5186. if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);}\
  5187. if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
  5188. ctx.lineWidth = line_width;\
  5189. for(var p = 0 ; p < x_points.length ; p++ ){\
  5190.  ctx.beginPath();\
  5191.  ctx.arc(x_points[p],y_points[p],radius[p],0,2*Math.PI,false);\
  5192.  ctx.closePath();\
  5193.  if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
  5194.  if(use_filled == 1){ctx.fillStyle = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";ctx.fill();}\
  5195.  ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  5196.  ctx.stroke();\
  5197. }\
  5198. ctx.restore();\
  5199. return;\
  5200. };");
  5201.     break;
  5202.     case DRAW_POLYLINE:/* user for userdraw : draw lines through points */
  5203. fprintf(js_include_file,"\n<!-- draw polyline -->\n\
  5204. var draw_polyline = function(ctx,x_points,y_points,line_width,stroke_color,stroke_opacity,use_dashed,dashtype0,dashtype1,use_rotate,angle,use_affine,affine_matrix){\
  5205. ctx.save();\
  5206. if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);}\
  5207. if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
  5208. ctx.lineWidth = line_width;\
  5209. ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  5210. if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
  5211. ctx.clearRect(0,0,xsize,ysize);\
  5212. ctx.beginPath();\
  5213. for(var p = 0 ; p < x_points.length-1 ; p++ ){\
  5214.  ctx.moveTo(x_points[p],y_points[p]);\
  5215.  ctx.lineTo(x_points[p+1],y_points[p+1]);\
  5216. }\
  5217. ctx.closePath();\
  5218. ctx.stroke();\
  5219. ctx.fillStyle =\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  5220. for(var p = 0 ; p < x_points.length ; p++ ){\
  5221.  ctx.beginPath();\
  5222.  ctx.arc(x_points[p],y_points[p],line_width,0,2*Math.PI,false);\
  5223.  ctx.closePath();ctx.fill();ctx.stroke();\
  5224. };\
  5225. ctx.restore();\
  5226. return;\
  5227. };");
  5228.     break;
  5229.  
  5230.     case DRAW_SEGMENTS:/*  used for userdraw */
  5231. fprintf(js_include_file,"\n<!-- draw segments -->\n\
  5232. var draw_segments = function(ctx,x_points,y_points,line_width,stroke_color,stroke_opacity,use_dashed,dashtype0,dashtype1,use_rotate,angle,use_affine,affine_matrix){\
  5233. ctx.save();\
  5234. if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);}\
  5235. if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
  5236. ctx.lineWidth = line_width;\
  5237. ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  5238. if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
  5239. for(var p = 0 ; p < x_points.length ; p = p+2 ){\
  5240.  ctx.beginPath();\
  5241.  ctx.moveTo(x_points[p],y_points[p]);\
  5242.  ctx.lineTo(x_points[p+1],y_points[p+1]);\
  5243.  ctx.closePath();\
  5244.  ctx.stroke();\
  5245.  }\
  5246.  ctx.restore();\
  5247.  return;\
  5248. };");
  5249.     break;
  5250.  
  5251.     case DRAW_LINES:/*  used for userdraw */
  5252. fprintf(js_include_file,"\n<!-- draw lines -->\n\
  5253. function calc_line(x1,x2,y1,y2){\
  5254. var marge = 2;\
  5255. if(x1 < x2+marge && x1>x2-marge){\
  5256.  return [x1,0,x1,ysize];\
  5257. };\
  5258. if(y1 < y2+marge && y1>y2-marge){\
  5259.  return [0,y1,xsize,y1];\
  5260. };\
  5261. var Y1 = y1 - (x1)*(y2 - y1)/(x2 - x1);\
  5262. var Y2 = y1 + (xsize - x1)*(y2 - y1)/(x2 - x1);\
  5263. return [0,Y1,xsize,Y2];\
  5264. };\
  5265. var draw_lines = function(ctx,x_points,y_points,line_width,stroke_color,stroke_opacity,use_dashed,dashtype0,dashtype1,use_rotate,angle,use_affine,affine_matrix){\
  5266. ctx.save();\
  5267. var line = new Array(4);\
  5268. if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);}\
  5269. if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
  5270. ctx.lineWidth = line_width;\
  5271. ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  5272. if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
  5273. for(var p = 0 ; p < x_points.length ; p = p+2 ){\
  5274.  line = calc_line(x_points[p],x_points[p+1],y_points[p],y_points[p+1]);\
  5275.  ctx.beginPath();\
  5276.  ctx.moveTo(line[0],line[1]);\
  5277.  ctx.lineTo(line[2],line[3]);\
  5278.  ctx.closePath();\
  5279.  ctx.stroke();\
  5280.  }\
  5281.  ctx.restore();\
  5282.  return;\
  5283. };");
  5284.     break;
  5285.  
  5286.     case DRAW_DEMILINES:/*  used for userdraw */
  5287. fprintf(js_include_file,"\n<!-- draw demilines -->\n\
  5288. function find_inf_point(x1,y1,x2,y2){\
  5289. if(x1<x2+2 && x1>x2-2){if(y1<y2){return [x1,y1,x1,ysize];}else{return [x1,0,x1,y1];};};\
  5290. var rc = (y2 - y1)/(x2 - x1);var q = y1 - (x1)*rc;\
  5291. if( x1 < x2 ){ return [x1,y1,xsize,rc*xsize+q];}else{return [x1,y1,0,q];};\
  5292. };\
  5293. var draw_demilines = function(ctx,x_points,y_points,line_width,stroke_color,stroke_opacity,use_dashed,dashtype0,dashtype1,use_rotate,angle,use_affine,affine_matrix){\
  5294. ctx.save();\
  5295. if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);}\
  5296. if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
  5297. ctx.lineWidth = line_width;\
  5298. ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  5299. if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
  5300. var pair = new Array(4);\
  5301. for(var p = 0 ; p < x_points.length ; p = p+2 ){\
  5302.  pair = find_inf_point(x_points[p],y_points[p],x_points[p+1],y_points[p+1]);\
  5303.  ctx.beginPath();\
  5304.  ctx.moveTo(pair[0],pair[1]);\
  5305.  ctx.lineTo(pair[2],pair[3]);\
  5306.  ctx.closePath();\
  5307.  ctx.stroke();\
  5308.  }\
  5309.  ctx.restore();\
  5310.  return;\
  5311. };");
  5312.     break;
  5313.  
  5314.     case DRAW_CROSSHAIRS:/*  used for userdraw */
  5315. fprintf(js_include_file,"\n<!-- draw crosshairs  -->\n\
  5316. var draw_crosshairs = function(ctx,x_points,y_points,line_width,crosshair_size,stroke_color,stroke_opacity,use_rotate,angle,use_affine,affine_matrix){\
  5317. if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);}\
  5318. if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
  5319. ctx.lineWidth = line_width;\
  5320. ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  5321. var x1,x2,y1,y2;\
  5322. for(var p = 0 ; p < x_points.length ; p++ ){\
  5323.  x1 = x_points[p] - crosshair_size;\
  5324.  x2 = x_points[p] + crosshair_size;\
  5325.  y1 = y_points[p] - crosshair_size;\
  5326.  y2 = y_points[p] + crosshair_size;\
  5327.  ctx.beginPath();\
  5328.  ctx.moveTo(x1,y1);\
  5329.  ctx.lineTo(x2,y2);\
  5330.  ctx.closePath();\
  5331.  ctx.stroke();\
  5332.  ctx.beginPath();\
  5333.  ctx.moveTo(x2,y1);\
  5334.  ctx.lineTo(x1,y2);\
  5335.  ctx.closePath();\
  5336.  ctx.stroke();\
  5337. }\
  5338. ctx.restore();\
  5339.  return;\
  5340. };");
  5341.     break;
  5342.  
  5343.     case DRAW_RECTS:/*  used for userdraw */
  5344. fprintf(js_include_file,"\n<!-- draw rects -->\n\
  5345. var draw_rects = function(ctx,x_points,y_points,line_width,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype0,dashtype1,use_rotate,angle,use_affine,affine_matrix){\
  5346. ctx.save();\
  5347. if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);}\
  5348. if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
  5349. ctx.lineWidth = line_width;\
  5350. ctx.strokeStyle = \"rgba('+stroke_color+','+stroke_opacity+')\";\
  5351. if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];}};\
  5352. for(var p = 0 ; p < x_points.length ; p = p + 2){\
  5353.  ctx.beginPath();\
  5354.  ctx.rect(x_points[p],y_points[p],x_points[p+1]-x_points[p],y_points[p+1]-y_points[p]);\
  5355.  ctx.closePath();\
  5356.  if(use_filled == 1 ){ctx.fillStyle = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";ctx.fill();}\
  5357.  ctx.stroke();\
  5358. };\
  5359. ctx.restore();\
  5360. return;\
  5361. };");
  5362.     break;
  5363.  
  5364.     case DRAW_ROUNDRECTS:/*  used for userdraw */
  5365. fprintf(js_include_file,"\n<!-- draw round rects -->\n\
  5366. var draw_roundrects = function(ctx,x_points,y_points,line_width,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype0,use_rotate,angle,use_affine,affine_matrix){\
  5367. ctx.save();\
  5368. if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);}\
  5369. if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
  5370. if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
  5371. var x,y,w,h,r;\
  5372. for(var p = 0; p < x_points.length; p = p+2){\
  5373.  x = x_points[p];y = y_points[p];w = x_points[p+1] - x;h = y_points[p+1] - y;r = parseInt(0.1*w);\
  5374.  ctx.beginPath();ctx.moveTo(x + r, y);\
  5375.  ctx.lineTo(x + w - r, y);\
  5376.  ctx.quadraticCurveTo(x + w, y, x + w, y + r);\
  5377.  ctx.lineTo(x + w, y + h - r);\
  5378.  ctx.quadraticCurveTo(x + w, y + h, x + w - r, y + h);\
  5379.  ctx.lineTo(x + r, y + h);\
  5380.  ctx.quadraticCurveTo(x, y + h, x, y + h - r);\
  5381.  ctx.lineTo(x, y + r);\
  5382.  ctx.quadraticCurveTo(x, y, x + r, y);\
  5383.  ctx.closePath();if( use_dashed == 1 ){ctx.setLineDash([dashtype0,dashtype1]);};\
  5384.  ctx.strokeStyle =\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  5385.  if( use_filled == 1 ){ctx.fillStyle =\"rgba(\"+fill_color+\",\"+fill_opacity+\")\";ctx.fill();};\
  5386.  ctx.stroke();\
  5387. }\
  5388. ctx.restore();\
  5389. };");
  5390.     break;
  5391.  
  5392.     case DRAW_ELLIPSES:/* not  used for userdraw */
  5393. fprintf(js_include_file,"\n<!-- draw ellipses -->\n\
  5394. var draw_ellipses = function(canvas_type,x_points,y_points,line_width,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype0,use_rotate,angle,use_affine,affine_matrix){\
  5395. var obj;\
  5396. if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
  5397.  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
  5398. }\
  5399. else\
  5400. {\
  5401.  obj = create_canvas%d(canvas_type,xsize,ysize);\
  5402. };\
  5403. var ctx = obj.getContext(\"2d\");\
  5404. ctx.save();\
  5405. if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);}\
  5406. if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
  5407. var cx,cy,ry,rx;\
  5408. ctx.lineWidth = line_width;\
  5409. if( use_filled == 1 ){ctx.fillStyle =\"rgba(\"+fill_color+\",\"+fill_opacity+\")\";};\
  5410. if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
  5411. ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  5412. for(var p=0;p< x_points.length;p = p+2){\
  5413.  ctx.beginPath();\
  5414.  cx = x_points[p];cy = y_points[p];rx = 0.25*x_points[p+1];ry = 0.25*y_points[p+1];\
  5415.  ctx.translate(cx - rx, cy - ry);\
  5416.  ctx.scale(rx, ry);\
  5417.  ctx.arc(1, 1, 1, 0, 2 * Math.PI, false);\
  5418.  if( use_filled == 1 ){ctx.fill();}\
  5419.  ctx.stroke();\
  5420. };\
  5421. ctx.restore();\
  5422. };",canvas_root_id,canvas_root_id,canvas_root_id);
  5423.     break;
  5424.  
  5425.     case DRAW_PATHS: /*  used for userdraw */
  5426. fprintf(js_include_file,"\n<!-- draw paths -->\n\
  5427. var draw_paths = function(ctx,x_points,y_points,line_width,closed_path,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype0,use_rotate,angle,use_affine,affine_matrix){\
  5428. ctx.save();\
  5429. if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);}\
  5430. if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
  5431. ctx.lineWidth = line_width;\
  5432. ctx.lineJoin = \"round\";\
  5433. ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  5434. ctx.beginPath();\
  5435. ctx.moveTo(x_points[0],y_points[0]);\
  5436. for(var p = 1 ; p < x_points.length ; p++ ){ctx.lineTo(x_points[p],y_points[p]);}\
  5437. if(closed_path == 1){ctx.lineTo(x_points[0],y_points[0]);ctx.closePath();}\
  5438. if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
  5439. if(use_filled == 1){ctx.fillStyle = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";ctx.fill();}\
  5440. ctx.stroke();\
  5441. ctx.restore();\
  5442. return;\
  5443. };");
  5444.  
  5445.     break;
  5446.     case DRAW_ARROWS:/*  used for userdraw */
  5447. fprintf(js_include_file,"\n<!-- draw arrows -->\n\
  5448. var draw_arrows = function(ctx,x_points,y_points,arrow_head,line_width,stroke_color,stroke_opacity,use_dashed,dashtype0,dashtype1,type,use_rotate,angle,use_affine,affine_matrix){\
  5449. ctx.save();\
  5450. if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);}\
  5451. if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
  5452. ctx.strokeStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  5453. ctx.fillStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  5454. ctx.lineWidth = line_width;\
  5455. if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
  5456. ctx.lineCap = \"round\";\
  5457. var x1,y1,x2,y2,dx,dy,len;\
  5458. for(var p = 0 ; p < x_points.length - 1 ; p = p +2){\
  5459.   ctx.save();\
  5460.   x1 = x_points[p];y1 = y_points[p];x2 = x_points[p+1];y2 = y_points[p+1];dx = x2 - x1;dy = y2 - y1;\
  5461.   len = Math.sqrt(dx*dx+dy*dy);\
  5462.   ctx.translate(x2,y2);\
  5463.   ctx.rotate(Math.atan2(dy,dx));\
  5464.   ctx.lineCap = \"round\";\
  5465.   ctx.beginPath();\
  5466.   ctx.moveTo(0,0);\
  5467.   ctx.lineTo(-len,0);\
  5468.   ctx.closePath();\
  5469.   ctx.stroke();\
  5470.   ctx.beginPath();\
  5471.   ctx.moveTo(0,0);\
  5472.   ctx.lineTo(-1*arrow_head,-0.5*arrow_head);\
  5473.   ctx.lineTo(-1*arrow_head, 0.5*arrow_head);\
  5474.   ctx.closePath();\
  5475.   ctx.fill();\
  5476.   ctx.restore();\
  5477.   if( type == 2 ){\
  5478.     ctx.save();\
  5479.     ctx.translate(x1,y1);\
  5480.     ctx.rotate(Math.atan2(-dy,-dx));\
  5481.     ctx.beginPath();\
  5482.     ctx.moveTo(0,0);\
  5483.     ctx.lineTo(-1*arrow_head,-0.4*arrow_head);\
  5484.     ctx.lineTo(-1*arrow_head, 0.4*arrow_head);\
  5485.     ctx.closePath();\
  5486.     ctx.stroke();\
  5487.     ctx.fill();\
  5488.     ctx.restore();\
  5489.   }\
  5490.  }\
  5491.  ctx.restore();\
  5492.  return;\
  5493. };");
  5494.     break;
  5495.  
  5496.     case DRAW_VIDEO:/* not  used for userdraw */
  5497. fprintf(js_include_file,"\n<!-- draw video -->\n\
  5498. var draw_video = function(canvas_root_id,x,y,w,h,URL){\
  5499. var canvas_div = document.getElementById(\"canvas_div\"+canvas_root_id);\
  5500. var video_div = document.createElement(\"div\");\
  5501. canvas_div.appendChild(video_div);\
  5502. video_div.style.position = \"absolute\";\
  5503. video_div.style.left = x+\"px\";\
  5504. video_div.style.top = y+\"px\";\
  5505. video_div.style.width = w+\"px\";\
  5506. video_div.style.height = h+\"px\";\
  5507. var video = document.createElement(\"video\");\
  5508. video_div.appendChild(video);\
  5509. video.style.width = w+\"px\";\
  5510. video.style.height = h+\"px\";\
  5511. video.autobuffer = true;\
  5512. video.controls = true;video.autoplay = false;\
  5513. var src = document.createElement(\"source\");\
  5514. src.type = \"video/mp4\";\
  5515. src.src = URL;\
  5516. video.appendChild(src);\
  5517. video.load();\
  5518. return;\
  5519. };");
  5520.     break;
  5521.  
  5522.     case DRAW_AUDIO:/* not used for userdraw */
  5523. fprintf(js_include_file,"\n<!-- draw audio -->\n\
  5524. var draw_audio = function(canvas_root_id,x,y,w,h,loop,visible,URL1,URL2){\
  5525. var canvas_div = document.getElementById(\"canvas_div\"+canvas_root_id);\
  5526. var audio_div = document.createElement(\"div\");\
  5527. canvas_div.appendChild(audio_div);\
  5528. audio_div.style.position = \"absolute\";\
  5529. audio_div.style.left = x+\"px\";\
  5530. audio_div.style.top = y+\"px\";\
  5531. audio_div.style.width = w+\"px\";\
  5532. audio_div.style.height = h+\"px\";\
  5533. var audio = document.createElement(\"audio\");\
  5534. audio_div.appendChild(audio);\
  5535. audio.setAttribute(\"style\",\"width:\"+w+\"px;height:\"+h+\"px\");\
  5536. audio.autobuffer = true;\
  5537. if(visible == 1 ){ audio.controls = true;audio.autoplay = false;}else{ audio.controls = false;audio.autoplay = true;}\
  5538. if(loop == 1 ){ audio.loop = true;}else{ audio.loop = false;}\
  5539. var src1 = document.createElement(\"source\");\
  5540. src1.type = \"audio/ogg\";\
  5541. src1.src = URL1;\
  5542. audio.appendChild(src1);\
  5543. var src2 = document.createElement(\"source\");\
  5544. src2.type = \"audio/mpeg\";\
  5545. src2.src = URL2;\
  5546. audio.appendChild(src2);\
  5547. audio.load();\
  5548. return;\
  5549. };");
  5550.     break;
  5551.  
  5552.     case DRAW_HTTP:/* not  used for userdraw */
  5553. fprintf(js_include_file,"\n<!-- draw http -->\n\
  5554. var draw_http = function(canvas_root_id,x,y,w,h,URL){\
  5555. var canvas_div = document.getElementById(\"canvas_div\"+canvas_root_id);\
  5556. var http_div = document.createElement(\"div\");\
  5557. var iframe = document.createElement(\"iframe\");\
  5558. canvas_div.appendChild(http_div);\
  5559. http_div.appendChild(iframe);\
  5560. iframe.src = URL;\
  5561. iframe.setAttribute(\"width\",w);\
  5562. iframe.setAttribute(\"height\",h);\
  5563. return;\
  5564. };");
  5565.     break;
  5566.  
  5567.     case DRAW_XML:
  5568. fprintf(js_include_file,"\n<!-- draw xml -->\n\
  5569. var draw_xml = function(canvas_root_id,x,y,w,h,mathml,onclick){\
  5570. var canvas_div = document.getElementById(\"canvas_div\"+canvas_root_id);\
  5571. var xml_div = document.createElement(\"div\");\
  5572. canvas_div.appendChild(xml_div);\
  5573. xml_div.innerHTML = mathml;\
  5574. if(onclick != 0){\
  5575.  xml_div.onclick = function(){\
  5576.   reply[0] = onclick;\
  5577.   alert(\"send \"+onclick+\" ?\");\
  5578.  };\
  5579. };\
  5580. xml_div.style.position = \"absolute\";\
  5581. xml_div.style.left = x+\"px\";\
  5582. xml_div.style.top = y+\"px\";\
  5583. xml_div.style.width = w+\"px\";\
  5584. xml_div.style.height = h+\"px\";\
  5585. return;\
  5586. };"
  5587. );
  5588.     break;
  5589.     case DRAW_SGRAPH:
  5590. /*
  5591.  xstart = given
  5592.  ystart = given
  5593.  sgraph(canvas_type,precision,xmajor,ymajor,xminor,yminor,majorcolor,minorcolor,fontfamily)
  5594. */
  5595. fprintf(js_include_file,"\n<!-- draw sgraph -->\n\
  5596. var draw_sgraph = function(canvas_type,precision,xmajor,ymajor,xminor,yminor,majorcolor,minorcolor,fontfamily,opacity,font_size){\
  5597. var obj;if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){obj = document.getElementById(\"wims_canvas%d\"+canvas_type);}else{ obj = create_canvas%d(canvas_type,xsize,ysize);};\
  5598. var ctx = obj.getContext(\"2d\");\
  5599. ctx.font = fontfamily;\
  5600. var minor_opacity = 0.8*opacity;\
  5601. ctx.clearRect(0,0,xsize,ysize);\
  5602. var zero_x = 0.1*xsize;\
  5603. var zero_y = 0.9*ysize;\
  5604. var snor_x;var snor_y;\
  5605. if( xstart != xmin){\
  5606.  snor_x = 0.1*xsize;\
  5607. }\
  5608. else\
  5609. {\
  5610.  snor_x = 0;\
  5611.  xstart = xmin;\
  5612. };\
  5613. ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
  5614. ctx.lineWidth = 2;\
  5615. ctx.beginPath();\
  5616. ctx.moveTo(xsize,zero_y);\
  5617. ctx.lineTo(zero_x,zero_y);\
  5618. ctx.lineTo(zero_x,0);\
  5619. ctx.stroke();\
  5620. ctx.closePath();\
  5621. ctx.beginPath();\
  5622. ctx.moveTo(zero_x,zero_y);\
  5623. ctx.lineTo(zero_x + 0.25*snor_x,zero_y - 0.1*snor_x);\
  5624. ctx.lineTo(zero_x + 0.5*snor_x,zero_y + 0.1*snor_x);\
  5625. ctx.lineTo(zero_x + 0.75*snor_x,zero_y - 0.1*snor_x);\
  5626. ctx.lineTo(zero_x + snor_x,zero_y);\
  5627. ctx.stroke();\
  5628. ctx.closePath();\
  5629. ctx.beginPath();\
  5630. var num = xstart;\
  5631. var flipflop = 1;\
  5632. var step_x = xmajor*(xsize - zero_x - snor_x)/(xmax - xstart);\
  5633. var txtsize;var txt_marge=step_x - 5;\
  5634. for(var x = zero_x+snor_x ; x < xsize;x = x + step_x){\
  5635.  txtsize = ctx.measureText(num).width;\
  5636.  if( txtsize > txt_marge ){if( flipflop == 1 ){flipflop = 0;}else{flipflop = 1;};};\
  5637.  if( flipflop == 1){\
  5638.   ctx.fillText(num,x - 0.5*txtsize,zero_y+font_size);\
  5639.  }\
  5640.  else\
  5641.  {\
  5642.   ctx.fillText(num,x - 0.5*txtsize,zero_y+2*font_size);\
  5643.  }\
  5644.  num = num + xmajor;\
  5645. };\
  5646. ctx.stroke();\
  5647. ctx.closePath();\
  5648. ctx.lineWidth = 1;\
  5649. ctx.beginPath();\
  5650. for(var x = zero_x+snor_x ; x < xsize;x = x + step_x){\
  5651.   ctx.moveTo(x,zero_y);\
  5652.   ctx.lineTo(x,0);\
  5653. };\
  5654. ctx.stroke();\
  5655. ctx.closePath();\
  5656. if( xminor > 1){\
  5657.  ctx.lineWidth = 0.5;\
  5658.  ctx.beginPath();\
  5659.  ctx.strokeStyle = \"rgba(\"+minorcolor+\",\"+minor_opacity+\")\";\
  5660.  var minor_step_x = step_x / xminor;\
  5661.  var nx;\
  5662.  for(var x = zero_x+snor_x; x < xsize;x = x + step_x){\
  5663.    num = 1;\
  5664.    for(var p = 1 ; p < xminor ; p++){\
  5665.     nx = x + num*minor_step_x;\
  5666.     ctx.moveTo(nx,zero_y);\
  5667.     ctx.lineTo(nx,0);\
  5668.     num++;\
  5669.    };\
  5670.  };\
  5671.  ctx.stroke();\
  5672.  ctx.closePath();\
  5673.  ctx.beginPath();\
  5674.  ctx.lineWidth = 2;\
  5675.  ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
  5676.  for(var x = zero_x+snor_x ; x < xsize;x = x + step_x){\
  5677.   ctx.moveTo(x,zero_y);ctx.lineTo(x,zero_y - 12);\
  5678.  };\
  5679.  for(var x = zero_x+snor_x ; x < xsize;x = x + minor_step_x){\
  5680.   ctx.moveTo(x,zero_y);ctx.lineTo(x,zero_y - 6);\
  5681.  };\
  5682.  ctx.stroke();\
  5683.  ctx.closePath();\
  5684.  ctx.lineWidth = 0.5;\
  5685. };\
  5686. xmin = xstart - (xmajor*(zero_x+snor_x)/step_x);\
  5687. if( ystart != ymin){\
  5688.  snor_y = 0.1*ysize;\
  5689. }\
  5690. else\
  5691. {\
  5692.  snor_y = 0;\
  5693.  ystart = ymin;\
  5694. };\
  5695. ctx.lineWidth = 2;\
  5696. ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
  5697. ctx.beginPath();\
  5698. ctx.moveTo(zero_x,zero_y);\
  5699. ctx.lineTo(zero_x - 0.1*snor_y,zero_y - 0.25*snor_y);\
  5700. ctx.lineTo(zero_x + 0.1*snor_y,zero_y - 0.5*snor_y);\
  5701. ctx.lineTo(zero_x - 0.1*snor_y,zero_y - 0.75*snor_y);\
  5702. ctx.lineTo(zero_x,zero_y - snor_y);\
  5703. ctx.stroke();\
  5704. ctx.closePath();\
  5705. ctx.beginPath();\
  5706. ctx.lineWidth = 1;\
  5707. num = ystart;\
  5708. var step_y = ymajor*(zero_y - snor_y)/(ymax - ystart);\
  5709. for(var y = zero_y - snor_y ; y > 0; y = y - step_y){\
  5710.  ctx.moveTo(zero_x,y);\
  5711.  ctx.lineTo(xsize,y);\
  5712.  ctx.fillText(num,zero_x - ctx.measureText(num+\" \").width,parseInt(y+0.2*font_size));\
  5713.  num = num + ymajor;\
  5714. };\
  5715. ctx.stroke();\
  5716. ctx.closePath();\
  5717. if( yminor > 1){\
  5718.  ctx.lineWidth = 0.5;\
  5719.  ctx.beginPath();\
  5720.  ctx.strokeStyle = \"rgba(\"+minorcolor+\",\"+minor_opacity+\")\";\
  5721.  var minor_step_y = step_y / yminor;\
  5722.  var ny;\
  5723.  for(var y = 0 ; y < zero_y - snor_y ;y = y + step_y){\
  5724.   num = 1;\
  5725.   for(var p = 1 ;p < yminor;p++){\
  5726.     ny = y + num*minor_step_y;\
  5727.     ctx.moveTo(zero_x,ny);\
  5728.     ctx.lineTo(xsize,ny);\
  5729.     num++;\
  5730.    };\
  5731.  };\
  5732.  ctx.stroke();\
  5733.  ctx.closePath();\
  5734.  ctx.lineWidth = 2;\
  5735.  ctx.beginPath();\
  5736.  ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
  5737.  for(var y = zero_y - snor_y ; y > 0 ;y = y - step_y){\
  5738.   ctx.moveTo(zero_x,y);\
  5739.   ctx.lineTo(zero_x+12,y);\
  5740.  };\
  5741.  for(var y = zero_y - snor_y ; y > 0 ;y = y - minor_step_y){\
  5742.   ctx.moveTo(zero_x,y);\
  5743.   ctx.lineTo(zero_x+6,y);\
  5744.  };\
  5745.  ctx.stroke();\
  5746.  ctx.closePath();\
  5747. };\
  5748. ymin = ystart - (ymajor*(ysize - zero_y + snor_y)/step_y);\
  5749. if( typeof legend%d  !== 'undefined' ){\
  5750.  ctx.globalAlpha = 1.0;\
  5751.  var y_offset = 2*font_size;\
  5752.  var txt;var txt_size;\
  5753.  var x_offset = xsize - 2*font_size;\
  5754.  var l_length = legend%d.length;var barcolor = new Array();\
  5755.  if( typeof legendcolors%d !== 'undefined' ){\
  5756.   for(var p = 0 ; p < l_length ; p++){\
  5757.    barcolor[p] = legendcolors%d[p];\
  5758.   };\
  5759.  }else{\
  5760.   if( barcolor.length == 0 ){\
  5761.    for(var p = 0 ; p < l_length ; p++){\
  5762.     barcolor[p] = stroke_color;\
  5763.    };\
  5764.   };\
  5765.  };\
  5766.  for(var p = 0; p < l_length; p++){\
  5767.   ctx.fillStyle = barcolor[p];\
  5768.   txt = legend%d[p];\
  5769.   txt_size = ctx.measureText(txt).width;\
  5770.   ctx.fillText(legend%d[p],x_offset - txt_size, y_offset);\
  5771.   y_offset = parseInt(y_offset + 1.5*font_size);\
  5772.  };\
  5773. };\
  5774. if( typeof xaxislabel !== 'undefined' ){\
  5775.   ctx.fillStyle = \'#000000\';\
  5776.   var txt_size = ctx.measureText(xaxislabel).width + 4 ;\
  5777.   ctx.fillText(xaxislabel,xsize - txt_size, zero_y - 7);\
  5778. };\
  5779. if( typeof yaxislabel !== 'undefined'){\
  5780.   ctx.save();\
  5781.   ctx.fillStyle = \'#000000\';\
  5782.   var txt_size = ctx.measureText(yaxislabel).width;\
  5783.   ctx.translate(zero_x+8 + font_size,txt_size+font_size);\
  5784.   ctx.rotate(-0.5*Math.PI);\
  5785.   ctx.fillText(yaxislabel,0,0);\
  5786.   ctx.restore();\
  5787. };\
  5788. };\n",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
  5789.     break;
  5790.  
  5791.     case DRAW_GRID:/* not used for userdraw */
  5792. fprintf(js_include_file,"\n<!-- draw grid -->\n\
  5793. var draw_grid%d = function(canvas_type,precision,stroke_opacity,xmajor,ymajor,xminor,yminor,tics_length,line_width,stroke_color,axis_color,font_size,font_family,use_axis,use_axis_numbering,use_rotate,angle,use_affine,affine_matrix,use_dashed,dashtype0,dashtype1,font_color,fill_opacity){\
  5794. var obj;if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){obj = document.getElementById(\"wims_canvas%d\"+canvas_type);}else{obj = create_canvas%d(canvas_type,xsize,ysize);};\
  5795. var ctx = obj.getContext(\"2d\");ctx.clearRect(0,0,xsize,ysize);\
  5796. if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
  5797. ctx.save();\
  5798. if( use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);};\
  5799. if( use_rotate == 1 ){ctx.translate(x2px(0),y2px(0));ctx.rotate(angle*Math.PI/180);ctx.translate(-1*(x2px(0)),-1*(y2px(0)));};\
  5800. var stroke_color = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  5801. ctx.fillStyle = \"rgba(\"+font_color+\",\"+1.0+\")\";\
  5802. var axis_color = \"rgba(\"+axis_color+\",\"+stroke_opacity+\")\";\
  5803. ctx.font = font_family;\
  5804. var barcolor = new Array();\
  5805. var xstep = xsize*xmajor/(xmax - xmin);\
  5806. var ystep = ysize*ymajor/(ymax - ymin);\
  5807. var x2step = xstep / xminor;\
  5808. var y2step = ystep / yminor;\
  5809. var zero_x = x2px(0);;var zero_y = y2px(0);var f_x;var f_y;\
  5810. if(xmin < 0 ){ f_x = -1;}else{ f_x = 1;}\
  5811. if(ymin < 0 ){ f_y = -1;}else{ f_y = 1;}\
  5812. ctx.beginPath();\
  5813. ctx.lineWidth = line_width;\
  5814. ctx.strokeStyle = stroke_color;\
  5815. for(var p = zero_x ; p < xsize; p = p + xstep){\
  5816. ctx.moveTo(p,0);\
  5817. ctx.lineTo(p,ysize);\
  5818. };\
  5819. for(var p = zero_x ; p > 0; p = p - xstep){\
  5820. ctx.moveTo(p,0);\
  5821. ctx.lineTo(p,ysize);\
  5822. };\
  5823. for(var p = zero_y ; p < ysize; p = p + ystep){\
  5824. ctx.moveTo(0,p);\
  5825. ctx.lineTo(xsize,p);\
  5826. };\
  5827. for(var p = zero_y ; p > 0; p = p - ystep){\
  5828. ctx.moveTo(0,p);\
  5829. ctx.lineTo(xsize,p);\
  5830. };\
  5831. if( typeof xaxislabel !== 'undefined' ){\
  5832. ctx.save();\
  5833. ctx.font = \"italic \"+font_size+\"px Ariel\";\
  5834. var corr =  ctx.measureText(xaxislabel).width;\
  5835. ctx.fillText(xaxislabel,xsize - 1.5*corr,zero_y - tics_length - 0.4*font_size);\
  5836. ctx.restore();\
  5837. };\
  5838. if( typeof yaxislabel !== 'undefined' ){\
  5839. ctx.save();\
  5840. ctx.font = \"italic \"+font_size+\"px Ariel\";\
  5841. var corr =  ctx.measureText(yaxislabel).width;\
  5842. ctx.translate(zero_x+tics_length + font_size,corr+font_size);\
  5843. ctx.rotate(-0.5*Math.PI);\
  5844. ctx.fillText(yaxislabel,0,0);\
  5845. ctx.restore();\
  5846. };\
  5847. ctx.stroke();\
  5848. ctx.closePath();\
  5849. if( use_axis == 1 ){\
  5850. ctx.save();\
  5851. ctx.beginPath();\
  5852. ctx.strokeStyle = stroke_color;\
  5853. ctx.lineWidth = 0.6*line_width;\
  5854. for(var p = zero_x ; p < xsize; p = p + x2step){\
  5855.  ctx.moveTo(p,0);\
  5856.  ctx.lineTo(p,ysize);\
  5857. };\
  5858. for(var p = zero_x ; p > 0; p = p - x2step){\
  5859.  ctx.moveTo(p,0);\
  5860.  ctx.lineTo(p,ysize);\
  5861. };\
  5862. for(var p = zero_y ; p < ysize; p = p + y2step){\
  5863.  ctx.moveTo(0,p);\
  5864.  ctx.lineTo(xsize,p);\
  5865. };\
  5866. for(var p = zero_y ; p > 0; p = p - y2step){\
  5867.  ctx.moveTo(0,p);\
  5868.  ctx.lineTo(xsize,p);\
  5869. };\
  5870. ctx.stroke();\
  5871. ctx.closePath();\
  5872. ctx.beginPath();\
  5873. ctx.lineWidth = 2*line_width;\
  5874. ctx.strokeStyle = axis_color;\
  5875. ctx.moveTo(0,zero_y);\
  5876. ctx.lineTo(xsize,zero_y);\
  5877. ctx.moveTo(zero_x,0);\
  5878. ctx.lineTo(zero_x,ysize);\
  5879. ctx.stroke();\
  5880. ctx.closePath();\
  5881. ctx.lineWidth = line_width+0.5;\
  5882. ctx.beginPath();\
  5883. for(var p = zero_x ; p < xsize; p = p + xstep){\
  5884.  ctx.moveTo(p,zero_y-tics_length);\
  5885.  ctx.lineTo(p,zero_y+tics_length);\
  5886. };\
  5887. for(var p = zero_x ; p > 0; p = p - xstep){\
  5888.  ctx.moveTo(p,zero_y-tics_length);\
  5889.  ctx.lineTo(p,zero_y+tics_length);\
  5890. };\
  5891. for(var p = zero_y ; p < ysize; p = p + ystep){\
  5892.  ctx.moveTo(zero_x-tics_length,p);\
  5893.  ctx.lineTo(zero_x+tics_length,p);\
  5894. };\
  5895. for(var p = zero_y ; p > 0; p = p - ystep){\
  5896.  ctx.moveTo(zero_x-tics_length,p);\
  5897.  ctx.lineTo(zero_x+tics_length,p);\
  5898. };\
  5899. for(var p = zero_x ; p < xsize; p = p + x2step){\
  5900.  ctx.moveTo(p,zero_y-0.5*tics_length);\
  5901.  ctx.lineTo(p,zero_y+0.5*tics_length);\
  5902. };\
  5903. for(var p = zero_x ; p > 0; p = p - x2step){\
  5904.  ctx.moveTo(p,zero_y-0.5*tics_length);\
  5905.  ctx.lineTo(p,zero_y+0.5*tics_length);\
  5906. };\
  5907. for(var p = zero_y ; p < ysize; p = p + y2step){\
  5908.  ctx.moveTo(zero_x-0.5*tics_length,p);\
  5909.  ctx.lineTo(zero_x+0.5*tics_length,p);\
  5910. };\
  5911. for(var p = zero_y ; p > 0; p = p - y2step){\
  5912.  ctx.moveTo(zero_x-0.5*tics_length,p);\
  5913.  ctx.lineTo(zero_x+0.5*tics_length,p);\
  5914. };\
  5915. ctx.stroke();\
  5916. ctx.closePath();\
  5917. ctx.restore();\
  5918. };\
  5919. if( use_axis_numbering == 1 ){\
  5920. ctx.save();\
  5921. ctx.fillColor = axis_color;\
  5922. ctx.strokeStyle = axis_color;\
  5923. ctx.lineWidth = 2*line_width;\
  5924. ctx.font = font_family;\
  5925. var shift = zero_y+2*font_size;var flip=0;var skip=0;var corr;var cnt;var disp_cnt;var prec;\
  5926. if( x_strings != null ){\
  5927.  var len = x_strings.length;if((len/2+0.5)%%2 == 0){ alert(\"xaxis number unpaired:  text missing ! \");return;};\
  5928.  ctx.beginPath();\
  5929.  for(var p = 0 ; p < len ; p = p+2){\
  5930.   var x_nums = x2px(eval(x_strings[p]));\
  5931.   var x_text = x_strings[p+1];\
  5932.   corr = ctx.measureText(x_text).width;\
  5933.   skip = 1.2*corr/xstep;\
  5934.   if( zero_y+2*font_size > ysize ){shift = ysize - 2*font_size;};\
  5935.   if( skip > 1 ){if(flip == 0 ){flip = 1; shift = shift + font_size;}else{flip = 0; shift = shift - font_size;}};\
  5936.   ctx.fillText(x_text,parseInt(x_nums-0.5*corr),shift);\
  5937.   ctx.moveTo(x_nums,zero_y - tics_length);\
  5938.   ctx.lineTo(x_nums,zero_y + tics_length);\
  5939.  };\
  5940.  ctx.closePath();\
  5941. }\
  5942. else\
  5943. {\
  5944.  skip = 1;cnt = px2x(zero_x);\
  5945.  prec = Math.log(precision)/(Math.log(10));\
  5946.  var y_basis;if(f_y == 1){ y_basis = ysize }else{ y_basis = zero_y + 1.4*font_size;};\
  5947.  for( var p = zero_x ; p < xsize ; p = p+xstep){\
  5948.   if(skip == 0 ){\
  5949.    disp_cnt = cnt.toFixed(prec);\
  5950.    corr = ctx.measureText(disp_cnt).width;\
  5951.    skip = parseInt(1.2*corr/xstep);\
  5952.    ctx.fillText(disp_cnt,p-0.5*corr,y_basis);\
  5953.   }\
  5954.   else\
  5955.   {\
  5956.    skip--;\
  5957.   };\
  5958.   cnt = cnt + xmajor;\
  5959.  };\
  5960.  cnt = px2x(zero_x);skip = 1;\
  5961.  for( var p = zero_x ; p > 0 ; p = p-xstep){\
  5962.   if(skip == 0 ){\
  5963.    disp_cnt = cnt.toFixed(prec);\
  5964.    corr = ctx.measureText(disp_cnt).width;\
  5965.    skip = parseInt(1.2*corr/xstep);\
  5966.    ctx.fillText(disp_cnt,p-0.5*corr,y_basis);\
  5967.   }\
  5968.   else\
  5969.   {\
  5970.    skip--;\
  5971.   };\
  5972.   cnt = cnt - xmajor;\
  5973.  };\
  5974. };\
  5975. if( y_strings != null ){\
  5976.  var len = y_strings.length;if((len/2+0.5)%%2 == 0){ alert(\"yaxis number unpaired:  text missing ! \");return;};\
  5977.  ctx.beginPath();\
  5978.  for(var p = 0 ; p < len ; p = p+2){\
  5979.   var y_nums = y2px(eval(y_strings[p]));\
  5980.   var y_text = y_strings[p+1];\
  5981.   corr = 2 + tics_length + ctx.measureText(y_text).width;\
  5982.   if( corr > zero_x){corr = parseInt(zero_x+2); }\
  5983.   ctx.fillText(y_text,zero_x - corr,y_nums + 0.5*font_size);\
  5984.   ctx.moveTo(zero_x - tics_length,y_nums);\
  5985.   ctx.lineTo(zero_x + tics_length,y_nums);\
  5986.  };\
  5987.  ctx.closePath();\
  5988. }\
  5989. else\
  5990. {\
  5991.  if(f_x == 1){ corr = 1.5*tics_length; }\
  5992.  cnt = px2y(zero_y);skip = 1;\
  5993.  for( var p = zero_y ; p < ysize ; p = p+ystep){\
  5994.   if(skip == 0 ){\
  5995.    skip = parseInt(1.4*font_size/ystep);\
  5996.    disp_cnt = cnt.toFixed(prec);\
  5997.    if(f_x == -1 ){ corr = parseInt(zero_x - (2 + tics_length + ctx.measureText(disp_cnt).width));};\
  5998.    ctx.fillText(disp_cnt,parseInt(corr),parseInt(p+(0.4*font_size)));\
  5999.   }\
  6000.   else\
  6001.   {\
  6002.    skip--;\
  6003.   };\
  6004.   cnt = cnt - ymajor;\
  6005.  };\
  6006.  corr = 0;cnt = px2y(zero_y);skip = 1;\
  6007.  if(f_x == 1){ corr = 1.5*tics_length; }\
  6008.  for( var p = zero_y ; p > 0 ; p = p-ystep){\
  6009.   if(skip == 0 ){\
  6010.    skip = parseInt(1.4*font_size/ystep);\
  6011.    disp_cnt = cnt.toFixed(prec);\
  6012.    if(f_x == -1 ){corr = parseInt(zero_x - (2 + tics_length + ctx.measureText(disp_cnt).width));};\
  6013.    ctx.fillText(disp_cnt,parseInt(corr),parseInt(p+(0.4*font_size)));\
  6014.   }\
  6015.   else\
  6016.   {\
  6017.    skip--;\
  6018.   };\
  6019.   cnt = cnt + ymajor;\
  6020.  };\
  6021. };\
  6022. ctx.stroke();\
  6023. ctx.restore();\
  6024. };\
  6025. if( typeof legend0  !== 'undefined' ){\
  6026. ctx.save();\
  6027. ctx.globalAlpha = 1.0;\
  6028. ctx.font = \"bold \"+font_size+\"px Ariel\";\
  6029. var y_offset = 2*font_size;\
  6030. var txt;var txt_size;\
  6031. var x_offset = xsize - 2*font_size;\
  6032. var l_length = legend0.length;\
  6033. if( typeof legendcolors0 !== 'undefined' ){\
  6034.  for(var p = 0 ; p < l_length ; p++){\
  6035.    barcolor[p] = legendcolors0[p];\
  6036.  };\
  6037. }\
  6038. else\
  6039. {\
  6040.  if( barcolor.length == 0 ){\
  6041.   for(var p = 0 ; p < l_length ; p++){\
  6042.    barcolor[p] = stroke_color;\
  6043.   };\
  6044.  };\
  6045. };\
  6046. for(var p = 0; p < l_length; p++){\
  6047.  ctx.fillStyle = barcolor[p];\
  6048.  txt = legend0[p];\
  6049.  txt_size = ctx.measureText(txt).width;\
  6050.  ctx.fillText(legend0[p],x_offset - txt_size, y_offset);\
  6051.  y_offset = parseInt(y_offset + 1.5*font_size);\
  6052. };\
  6053. ctx.restore();\
  6054. };\
  6055. if( typeof barchart_0  !== 'undefined' ){\
  6056. ctx.save();\
  6057. var num_barcharts = 0;\
  6058. var bar_name = eval('barchart_0');\
  6059. while( typeof bar_name !== 'undefined' ){\
  6060.    try{ bar_name = eval('barchart_'+num_barcharts);num_barcharts++;}catch(e){break;};\
  6061. };\
  6062. var bar_width = parseInt(0.8*xstep/(num_barcharts));\
  6063. for(var i=0 ; i< num_barcharts ; i++){\
  6064.  bar_name = eval('barchart_'+i);\
  6065.  var bar_x = new Array();\
  6066.  var bar_y = new Array();\
  6067.  var lb = bar_name.length;\
  6068.  var idx = 0;\
  6069.  var dx = parseInt(0.5*i*bar_width);\
  6070.  for( var p = 0 ; p < lb ; p = p + 3 ){\
  6071.   bar_x[idx] = x2px(bar_name[p]);\
  6072.   bar_y[idx] = y2px(bar_name[p+1]);\
  6073.   barcolor[idx] = bar_name[p+2];\
  6074.   idx++;\
  6075.  };\
  6076.  ctx.globalAlpha = fill_opacity;\
  6077.  ctx.beginPath();\
  6078.  for( var p = 0; p < idx ; p++ ){\
  6079.   ctx.strokeStyle = barcolor[p];\
  6080.   ctx.fillStyle = barcolor[p];\
  6081.   ctx.rect(bar_x[p]-0.4*xstep+dx,bar_y[p],bar_width,zero_y - bar_y[p]);\
  6082.  };\
  6083.  ctx.fill();\
  6084.  ctx.stroke();\
  6085.  ctx.closePath();\
  6086. };\
  6087. ctx.restore();\
  6088. };\
  6089. if( typeof linegraph_0 !== 'undefined' ){\
  6090. ctx.save();\
  6091. ctx.globalAlpha = 1.0;\
  6092. var i = 0;\
  6093. var line_name = eval('linegraph_'+i);\
  6094. while ( typeof line_name !== 'undefined' ){\
  6095.  ctx.strokeStyle = 'rgba('+line_name[0]+','+stroke_opacity+')';\
  6096.  ctx.lineWidth = parseInt(line_name[1]);\
  6097.  if(line_name[2] == \"1\"){\
  6098.   var d1 = parseInt(line_name[3]);\
  6099.   var d2 = parseInt(line_name[4]);\
  6100.   if(ctx.setLineDash){ ctx.setLineDash([d1,d2]); } else { ctx.mozDash = [d1,d2];};\
  6101.  }\
  6102.  else\
  6103.  {\
  6104.  if(ctx.setLineDash){ctx.setLineDash = null;}\
  6105.  if(ctx.mozDash){ctx.mozDash = null;}\
  6106.  };\
  6107.  var data_x = new Array();\
  6108.  var data_y = new Array();\
  6109.  var lb = line_name.length;\
  6110.  var idx = 0;\
  6111.  for( var p = 5 ; p < lb ; p = p + 2 ){\
  6112.   data_x[idx] = x2px(line_name[p]);\
  6113.   data_y[idx] = y2px(line_name[p+1]);\
  6114.   idx++;\
  6115.  };\
  6116.  for( var p = 0; p < idx ; p++){\
  6117.   ctx.beginPath();\
  6118.   ctx.moveTo(data_x[p],data_y[p]);\
  6119.   ctx.lineTo(data_x[p+1],data_y[p+1]);\
  6120.   ctx.stroke();\
  6121.   ctx.closePath();\
  6122.  };\
  6123.  i++;\
  6124.  try{ line_name = eval('linegraph_'+i); }catch(e){ break; }\
  6125. };\
  6126. ctx.restore();\
  6127. };\
  6128. return;\
  6129. };",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
  6130.     break;
  6131.  
  6132.     case DRAW_PIECHART:
  6133. fprintf(js_include_file,"\n<!-- draw piecharts -->\n\
  6134. function draw_piechart(canvas_type,x_center,y_center,radius, data_color_list,fill_opacity,legend_cnt,font_family){\
  6135. if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
  6136.  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
  6137. }\
  6138. else\
  6139. {\
  6140.  obj = create_canvas%d(canvas_type,xsize,ysize);\
  6141. };\
  6142. var ld = data_color_list.length;\
  6143. var sum = 0;\
  6144. var idx = 0;\
  6145. var font_size = parseInt(font_family.replace(/[^0-9\\.]+/g, \"\"));\
  6146. var colors = new Array();\
  6147. var data = new Array();\
  6148. for(var p = 0;p < ld; p = p + 2){\
  6149.  data[idx] = parseFloat(data_color_list[p]);\
  6150.  sum = sum + data[idx];\
  6151.  colors[idx] = data_color_list[p+1];\
  6152.  idx++;\
  6153. };\
  6154. var ctx = obj.getContext(\"2d\");\
  6155. ctx.save();\
  6156. var angle;\
  6157. var angle_end = 0;\
  6158. var offset = Math.PI / 2;\
  6159. ctx.globalAlpha = fill_opacity;\
  6160. for(var p=0; p < idx; p++){\
  6161.  ctx.beginPath();\
  6162.  ctx.fillStyle = colors[p];\
  6163.  ctx.moveTo(x_center,y_center);\
  6164.  angle = Math.PI * (2 * data[p] / sum);\
  6165.  ctx.arc(x_center,y_center, radius, angle_end - offset, angle_end + angle - offset, false);\
  6166.  ctx.lineTo(x_center, y_center);\
  6167.  ctx.fill();\
  6168.  ctx.closePath();\
  6169.  angle_end  = angle_end + angle;\
  6170. };\
  6171. if(typeof legend0 !== 'undefined'){\
  6172.  var legenda = eval(\"legend\"+legend_cnt);\
  6173.  ctx.globalAlpha = 1.0;\
  6174.  ctx.font = font_family;\
  6175.  var y_offset = font_size; \
  6176.  var x_offset = 0;\
  6177.  var txt;var txt_size;\
  6178.  for(var p = 0; p < idx; p++){\
  6179.   ctx.fillStyle = colors[p];\
  6180.   txt = legenda[p];\
  6181.   txt_size = ctx.measureText(txt).width;\
  6182.   if( x_center + radius + txt_size > xsize ){ x_offset =  x_center + radius + txt_size - xsize;} else { x_offset = 0; };\
  6183.   ctx.fillText(txt,x_center + radius - x_offset, y_center - radius + y_offset);\
  6184.   y_offset = parseInt(y_offset + 1.5*font_size);\
  6185.  };\
  6186. };\
  6187. ctx.restore();\
  6188. };",canvas_root_id,canvas_root_id,canvas_root_id);
  6189.  
  6190.     break;
  6191.     case DRAW_ARCS:
  6192. fprintf(js_include_file,"\n<!-- draw arcs -->\n\
  6193. var draw_arc = function(ctx,xc,yc,r,start,end,line_width,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype0,dashtype1,use_rotate,angle,use_affine,affine_matrix){\
  6194. ctx.save();\
  6195. if( use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{if(ctx.mozDash){ ctx.mozDash = [dashtype0,dashtype1];};};};\
  6196. if( use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);};\
  6197. if( use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);};\
  6198. if(end < start){var tmp = end;end = start;start=tmp;};\
  6199. start = 360 - start;\
  6200. end = 360 - end;\
  6201. ctx.lineWidth = line_width;\
  6202. ctx.strokeStyle =  \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  6203. ctx.fillStyle = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";\
  6204. ctx.beginPath();\
  6205. ctx.moveTo(xc,yc);\
  6206. ctx.arc(xc, yc, r, start*(Math.PI / 180), end*(Math.PI / 180),true);\
  6207. ctx.lineTo(xc,yc);\
  6208. ctx.closePath();\
  6209. if( use_filled == 1 ){\
  6210.  ctx.fill();\
  6211. };\
  6212. ctx.stroke();\
  6213. ctx.restore();\
  6214. };");
  6215.  
  6216.     break;
  6217.     case DRAW_CENTERSTRING:
  6218. fprintf(js_include_file,"\n<!-- draw centerstring -->\n\
  6219. var draw_centerstring = function(canvas_type,y,font_family,stroke_color,stroke_opacity,text){\
  6220. var obj;\
  6221. if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
  6222.  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
  6223. }\
  6224. else\
  6225. {\
  6226.  obj = create_canvas%d(canvas_type,xsize,ysize);\
  6227. };\
  6228. var ctx = obj.getContext(\"2d\");\
  6229. ctx.save();\
  6230. ctx.font = font_family;\
  6231. ctx.fillStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  6232. var stringwidth = ctx.measureText(text).width;\
  6233. var x = parseInt((xsize - stringwidth)/2);if( x < 0 ){x = 0;};\
  6234. ctx.fillText(text,x,y2px(y));\
  6235. return;\
  6236. };",canvas_root_id,canvas_root_id,canvas_root_id);
  6237.     break;
  6238.     case DRAW_TEXTS:
  6239. fprintf(js_include_file,"\n<!-- draw text -->\n\
  6240. var draw_text = function(canvas_type,x,y,font_size,font_family,stroke_color,stroke_opacity,angle2,text,use_rotate,angle,use_affine,affine_matrix){\
  6241.  var obj;\
  6242.  if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
  6243.   obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
  6244.  }\
  6245.  else\
  6246.  {\
  6247.   obj = create_canvas%d(canvas_type,xsize,ysize);\
  6248.  };\
  6249.  var ctx = obj.getContext(\"2d\");\
  6250.  if(angle2 == 0 && angle != 0){\
  6251.   ctx.save();\
  6252.   if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);}\
  6253.   if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
  6254.  };\
  6255.  if( font_family.indexOf('px') != null ){\
  6256.   ctx.font = font_family;\
  6257.  }\
  6258.  else\
  6259.  {\
  6260.   ctx.font = font_family;\
  6261.  };\
  6262.  ctx.fillStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  6263.  if(angle2 != 0){\
  6264.   ctx.save();\
  6265.   ctx.translate(x,y);\
  6266.   ctx.rotate((360-angle2)*(Math.PI / 180));\
  6267.   ctx.fillText(text,0,0);\
  6268.   ctx.restore();\
  6269.  }else{ctx.fillText(text,x,y);};\
  6270. ctx.restore();\
  6271. return;\
  6272. };",canvas_root_id,canvas_root_id,canvas_root_id);
  6273.     break;
  6274.     case DRAW_CURVE:
  6275. fprintf(js_include_file,"\n<!-- draw curve -->\n\
  6276. var draw_curve = function(canvas_type,type,x_points,y_points,line_width,stroke_color,stroke_opacity,use_dashed,dashtype0,use_rotate,angle,use_affine,affine_matrix){\
  6277. var obj;\
  6278. if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
  6279.  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
  6280. }\
  6281. else\
  6282. {\
  6283.  obj = create_canvas%d(canvas_type,xsize,ysize);\
  6284. };\
  6285. var ctx = obj.getContext(\"2d\");\
  6286. ctx.save();\
  6287. if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);}\
  6288. if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
  6289. ctx.beginPath();ctx.lineWidth = line_width;\
  6290. if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
  6291. ctx.strokeStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  6292. ctx.moveTo(x2px(x_points[0]),y2px(y_points[0]));\
  6293. for(var p = 1 ; p < x_points.length ; p++){\
  6294.  if( y2px(y_points[p]) > -5 && y2px(y_points[p]) < ysize+5 ){\
  6295.  ctx.lineTo(x2px(x_points[p]),y2px(y_points[p]));\
  6296.  }\
  6297.  else\
  6298.  {\
  6299.   ctx.stroke();\
  6300.   ctx.beginPath();\
  6301.   p++;\
  6302.   ctx.moveTo(x2px(x_points[p]),y2px(y_points[p]));\
  6303.  };\
  6304. };\
  6305. ctx.stroke();\
  6306. ctx.restore();\
  6307. };",canvas_root_id,canvas_root_id,canvas_root_id);
  6308.     break;
  6309.  
  6310.     case DRAW_INPUTS:
  6311. fprintf(js_include_file,"\n<!-- draw input fields -->\n\
  6312. var draw_inputs = function(root_id,input_cnt,x,y,size,readonly,style,value){\
  6313. var canvas_div = document.getElementById(\"canvas_div\"+root_id);\
  6314. var input = document.createElement(\"input\");\
  6315. input.setAttribute(\"id\",\"canvas_input\"+input_cnt);\
  6316. input.setAttribute(\"style\",\"position:absolute;left:\"+x+\"px;top:\"+y+\"px;\"+style);\
  6317. input.setAttribute(\"size\",size);\
  6318. input.setAttribute(\"value\",value);\
  6319. if( readonly == 0 || wims_status == \"done\" ){ input.setAttribute(\"readonly\",\"readonly\");if( wims_status == \"done\" ){input.setAttribute(\"value\",\"\");};};\
  6320. canvas_div.appendChild(input);};");
  6321.     break;
  6322.  
  6323.     case DRAW_TEXTAREAS:
  6324. fprintf(js_include_file,"\n<!-- draw text area inputfields -->\n\
  6325. var draw_textareas = function(root_id,input_cnt,x,y,cols,rows,readonly,style,value){\
  6326. var canvas_div = document.getElementById(\"canvas_div\"+root_id);\
  6327. var textarea = document.createElement(\"textarea\");\
  6328. textarea.setAttribute(\"id\",\"canvas_input\"+input_cnt);\
  6329. textarea.setAttribute(\"style\",\"position:absolute;left:\"+x+\"px;top:\"+y+\"px;\"+style);\
  6330. textarea.setAttribute(\"cols\",cols);\
  6331. textarea.setAttribute(\"rows\",rows);\
  6332. textarea.value = value;\
  6333. if( readonly == 0 || wims_status == \"done\" ){ textarea.setAttribute(\"readonly\",\"readonly\");if( wims_status == \"done\" ){textarea.value=\"\";};};\
  6334. canvas_div.appendChild(textarea);};");
  6335.     break;
  6336.  
  6337. case DRAW_PIXELS:
  6338. fprintf(js_include_file,"\n<!-- draw pixel -->\n\
  6339. var draw_setpixel = function(x,y,color,opacity,pixelsize){\
  6340. var canvas = create_canvas%d(10,xsize,ysize);\
  6341. var d = 0.5*pixelsize;\
  6342. var ctx = canvas.getContext(\"2d\");\
  6343. ctx.fillStyle = \"rgba(\"+color+\",\"+opacity+\")\";\
  6344. ctx.clearRect(0,0,xsize,ysize);\
  6345. for(var p=0; p<x.length;p++){\
  6346.  ctx.fillRect( x2px(x[p]) - d, y2px(y[p]) - d , pixelsize, pixelsize );\
  6347. };\
  6348. ctx.fill();ctx.stroke();\
  6349. };",canvas_root_id);
  6350. break;
  6351.  
  6352. case DRAW_CLOCK:
  6353. fprintf(js_include_file,"\n<!-- begin command clock -->\n\
  6354. var clock_canvas = create_canvas%d(%d,xsize,ysize);\
  6355. var clock_ctx = clock_canvas.getContext(\"2d\");\
  6356. var clock = function(xc,yc,radius,H,M,S,type,interaction,h_color,m_color,s_color,bg_color,fg_color){\
  6357. clock_ctx.clearRect(xc - radius,yc - radius,2*radius,2*radius);\
  6358. clock_ctx.save();\
  6359. clock_ctx.globalAlpha = clock_bg_opacity;\
  6360. this.type = type || 0;\
  6361. this.interaction = interaction || 0;\
  6362. this.H = H;\
  6363. this.M = M;\
  6364. this.S = S;\
  6365. if(this.S == -1){this.S = 59;this.M = this.M - 1;};\
  6366. if(this.M == -1){this.M = 59;this.H = this.H - 1;};\
  6367. if(this.H == -1){this.H = 11;};\
  6368. this.xc = xc || xsize/2;\
  6369. this.yc = yc || ysize/2;\
  6370. this.radius = radius || xsize/4;\
  6371. var font_size = parseInt(0.2*this.radius);\
  6372. this.H_color = h_color || \"blue\";\
  6373. this.M_color = m_color || \"blue\";\
  6374. this.S_color = s_color || \"blue\";\
  6375. this.fg_color = fg_color || \"red\";\
  6376. this.bg_color = bg_color || \"white\";\
  6377. clock_ctx.translate(this.xc,this.yc);\
  6378. clock_ctx.beginPath();\
  6379. clock_ctx.arc(0,0,this.radius,0,2*Math.PI,false);\
  6380. clock_ctx.fillStyle = this.bg_color;\
  6381. clock_ctx.fill();\
  6382. clock_ctx.closePath();\
  6383. clock_ctx.beginPath();\
  6384. clock_ctx.font = font_size+\"px Arial\";\
  6385. clock_ctx.fillStyle = this.fg_color;\
  6386. clock_ctx.textAlign = \"center\";\
  6387. clock_ctx.textBaseline = 'middle';\
  6388. var angle;var x1,y1,x2,y2;\
  6389. var angle_cos;var angle_sin;\
  6390. clock_ctx.globalAlpha = clock_fg_opacity;\
  6391. switch(type){\
  6392. case 0:clock_ctx.beginPath();\
  6393. for(var p = 1; p <= 12 ; p++){\
  6394.  angle_cos = this.radius*(Math.cos(p * (Math.PI * 2) / 12));\
  6395.  angle_sin = this.radius*(Math.sin(p * (Math.PI * 2) / 12));\
  6396.  x1 = 0.8*angle_cos;y1 = 0.8*angle_sin;x2 = angle_cos;y2 = angle_sin;\
  6397.  clock_ctx.moveTo(x1,y1);\
  6398.  clock_ctx.lineTo(x2,y2);\
  6399. };\
  6400. for(var p = 1; p <= 60 ; p++){\
  6401.  angle_cos = this.radius*(Math.cos(p * (Math.PI * 2) / 60));\
  6402.  angle_sin = this.radius*(Math.sin(p * (Math.PI * 2) / 60));\
  6403.  x1 = 0.9*angle_cos;y1 = 0.9*angle_sin;x2 = angle_cos;y2 = angle_sin;\
  6404.  clock_ctx.moveTo(x1,y1);\
  6405.  clock_ctx.lineTo(x2,y2);\
  6406. };\
  6407. clock_ctx.closePath();\
  6408. clock_ctx.stroke();\
  6409. break;\
  6410. case 1:\
  6411. for(var p= 1; p <= 12 ; p++){ angle = (p - 3) * (Math.PI * 2) / 12;x1 = 0.9*this.radius*Math.cos(angle);y1 = 0.9*this.radius*Math.sin(angle);clock_ctx.fillText(p, x1, y1);};break;\
  6412. case 2:\
  6413. for(var p= 1; p <= 12 ; p++){ angle = (p - 3) * (Math.PI * 2) / 12;x1 = 0.8*this.radius*Math.cos(angle);y1 = 0.8*this.radius*Math.sin(angle);clock_ctx.fillText(p, x1, y1);};\
  6414. clock_ctx.beginPath();\
  6415. for(var p = 1; p <= 12 ; p++){\
  6416.  angle_cos = this.radius*(Math.cos(p * (Math.PI * 2) / 12));\
  6417.  angle_sin = this.radius*(Math.sin(p * (Math.PI * 2) / 12));\
  6418.  x1 = 0.9*angle_cos;y1 = 0.9*angle_sin;x2 = angle_cos;y2 = angle_sin;\
  6419.  clock_ctx.moveTo(x1,y1);\
  6420.  clock_ctx.lineTo(x2,y2);\
  6421. };\
  6422. for(var p = 1; p <= 60 ; p++){\
  6423.  angle_cos = this.radius*(Math.cos(p * (Math.PI * 2) / 60));\
  6424.  angle_sin = this.radius*(Math.sin(p * (Math.PI * 2) / 60));\
  6425.  x1 = 0.95*angle_cos;y1 = 0.95*angle_sin;x2 = angle_cos;y2 = angle_sin;\
  6426.  clock_ctx.moveTo(x1,y1);\
  6427.  clock_ctx.lineTo(x2,y2);\
  6428. };\
  6429. clock_ctx.closePath();\
  6430. clock_ctx.stroke();\
  6431. break;\
  6432. };\
  6433. angle = (this.H - 3 + this.M/60 ) * 2 * Math.PI / 12;\
  6434. clock_ctx.rotate(angle);\
  6435. clock_ctx.beginPath();\
  6436. clock_ctx.moveTo(-3, -2);\
  6437. clock_ctx.lineTo(-3, 2);\
  6438. clock_ctx.lineTo(this.radius * 0.7, 1);\
  6439. clock_ctx.lineTo(this.radius  * 0.7, -1);\
  6440. clock_ctx.fillStyle = this.H_color;\
  6441. clock_ctx.fill();\
  6442. clock_ctx.rotate(-angle);\
  6443. angle = (this.M - 15 + this.S/60) * 2 * Math.PI / 60;\
  6444. clock_ctx.rotate(angle);\
  6445. clock_ctx.beginPath();\
  6446. clock_ctx.moveTo(-3, -2);\
  6447. clock_ctx.lineTo(-3, 2);\
  6448. clock_ctx.lineTo(this.radius  * 0.8, 1);\
  6449. clock_ctx.lineTo(this.radius  * 0.8, -1);\
  6450. clock_ctx.fillStyle = this.M_color;\
  6451. clock_ctx.fill();\
  6452. clock_ctx.rotate(-angle);\
  6453. angle = (this.S - 15) * 2 * Math.PI / 60;\
  6454. clock_ctx.rotate(angle);\
  6455. clock_ctx.beginPath();\
  6456. clock_ctx.moveTo(0,0);\
  6457. clock_ctx.lineTo(this.radius  * 0.95, 0);\
  6458. clock_ctx.lineTo(this.radius  * 0.9, -1);\
  6459. clock_ctx.strokeStyle = this.S_color;\
  6460. clock_ctx.stroke();\
  6461. clock_ctx.restore();\
  6462. };",canvas_root_id,CLOCK_CANVAS);
  6463. break;
  6464.  
  6465. case DRAW_LATTICE:
  6466. fprintf(js_include_file,"\n<!-- draw lattice -->\n\
  6467. var draw_lattice = function(canvas_type,line_width,x0,y0,dx1,dy1,dx2,dy2,n1,n2,fill_color,fill_opacity,stroke_color,stroke_opacity,use_rotate,angle,use_affine,affine_matrix){\
  6468. var obj;\
  6469. if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
  6470.  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
  6471. }\
  6472. else\
  6473. {\
  6474.  obj = create_canvas%d(canvas_type,xsize,ysize);\
  6475. };\
  6476. var ctx = obj.getContext(\"2d\");\
  6477. ctx.save();\
  6478. if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);}\
  6479. if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
  6480. ctx.fillStyle =\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  6481. ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  6482. var radius = line_width;\
  6483. var x = 0;\
  6484. var y = 0;\
  6485. var x_step_px = xsize/(xmax-xmin);\
  6486. var y_step_px = ysize/(ymax-ymin);\
  6487. var xv1 = dx1*x_step_px;\
  6488. var yv1 = dy1*y_step_px;\
  6489. var xv2 = dx2*x_step_px;\
  6490. var yv2 = dy2*y_step_px;\
  6491. for(var p = 0; p < n1 ;p++){\
  6492.  x = p*xv1 + x0;\
  6493.  y = p*yv1 + y0;\
  6494.  for(var c = 0; c < n2 ; c++){\
  6495.   ctx.beginPath();\
  6496.   ctx.arc(x+c*xv2,y+c*yv2,radius,0,2*Math.PI,false);\
  6497.   ctx.fill();\
  6498.   ctx.stroke();\
  6499.   ctx.closePath();\
  6500.  };\
  6501. };\
  6502. ctx.restore();\
  6503. return;\
  6504. };",canvas_root_id,canvas_root_id,canvas_root_id);
  6505.     break;
  6506. case DRAW_XYLOGSCALE:
  6507. fprintf(js_include_file,"\n<!-- draw xylogscale -->\n\
  6508. var draw_grid%d = function(canvas_type,line_width,major_color,minor_color,major_opacity,minor_opacity,font_size,font_family,font_color,use_axis_numbering,precision){\
  6509. var obj;\
  6510. if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
  6511.  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
  6512. }\
  6513. else\
  6514. {\
  6515.  obj = create_canvas%d(canvas_type,xsize,ysize);\
  6516. };\
  6517. var ctx = obj.getContext(\"2d\");\
  6518. ctx.clearRect(0,0,xsize,ysize);\
  6519. ctx.save();\
  6520. var xmarge;var ymarge;var x_e;var y_e;var num;var corr;var xtxt;var ytxt;\
  6521. var x_min = Math.log(xmin)/Math.log(xlogbase);\
  6522. var x_max = Math.log(xmax)/Math.log(xlogbase);\
  6523. var y_min = Math.log(ymin)/Math.log(ylogbase);\
  6524. var y_max = Math.log(ymax)/Math.log(ylogbase);\
  6525. if(use_axis_numbering == 1){\
  6526.  ctx.font = font_family;\
  6527.  xmarge = ctx.measureText(ylogbase+'^'+y_max.toFixed(0)+' ').width;\
  6528.  ymarge = parseInt(1.5*font_size);\
  6529.  ctx.save();\
  6530.  ctx.fillStyle=\"rgba(255,215,0,0.2)\";\
  6531.  ctx.rect(0,0,xmarge,ysize);\
  6532.  ctx.rect(0,ysize-ymarge,xsize,ysize);\
  6533.  ctx.fill();\
  6534.  ctx.restore();\
  6535. }else{xmarge = 0;ymarge = 0;};\
  6536. if( typeof xaxislabel !== 'undefined' ){\
  6537.  ctx.save();\
  6538.  ctx.font = \"italic \"+font_size+\"px Ariel\";\
  6539.  ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
  6540.  corr =  ctx.measureText(xaxislabel).width;\
  6541.  ctx.fillText(xaxislabel,xsize - 1.5*corr,ysize - 2*font_size);\
  6542.  ctx.restore();\
  6543. };\
  6544. if( typeof yaxislabel !== 'undefined' ){\
  6545.  ctx.save();\
  6546.  ctx.font = \"italic \"+font_size+\"px Ariel\";\
  6547.  ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
  6548.  corr = ctx.measureText(yaxislabel).width;\
  6549.  ctx.translate(xmarge+font_size,corr+font_size);\
  6550.  ctx.rotate(-0.5*Math.PI);\
  6551.  ctx.fillText(yaxislabel,0,0);\
  6552.  ctx.restore();\
  6553. };\
  6554. ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
  6555. ctx.lineWidth = line_width;\
  6556. for(var p = x_min; p <= x_max ; p++){\
  6557.  num = Math.pow(xlogbase,p);\
  6558.  for(var i = 1 ; i < xlogbase ; i++){\
  6559.   x_e = x2px(i*num);\
  6560.   if( i == 1 ){\
  6561.    ctx.lineWidth = line_width;\
  6562.    ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
  6563.    if( use_axis_numbering == 1 && p > x_min){\
  6564.      xtxt = xlogbase+'^'+p.toFixed(0);\
  6565.      corr = 0.5*(ctx.measureText(xtxt).width);\
  6566.      ctx.fillText(xtxt,x_e - corr,ysize - 4);\
  6567.    };\
  6568.   }else{\
  6569.    ctx.lineWidth = 0.2*line_width;\
  6570.    ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
  6571.   };\
  6572.   if( x_e >= xmarge ){\
  6573.    ctx.beginPath();\
  6574.    ctx.moveTo(x_e,0);\
  6575.    ctx.lineTo(x_e,ysize - ymarge);\
  6576.    ctx.stroke();\
  6577.    ctx.closePath();\
  6578.   };\
  6579.  };\
  6580. };\
  6581. for(var p = y_min; p <= y_max ; p++){\
  6582.  num = Math.pow(ylogbase,p);\
  6583.  for(var i = 1 ; i < ylogbase ; i++){\
  6584.   y_e = y2px(i*num);\
  6585.   if( i == 1 ){\
  6586.    ctx.lineWidth = line_width;\
  6587.    ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
  6588.    if( use_axis_numbering == 1 && p > y_min){\
  6589.     ctx.fillText(ylogbase+'^'+p.toFixed(0),0,y_e);\
  6590.    };\
  6591.   }else{\
  6592.    ctx.lineWidth = 0.2*line_width;\
  6593.    ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
  6594.   };\
  6595.   ctx.beginPath();\
  6596.   ctx.moveTo(xmarge,y_e);\
  6597.   ctx.lineTo(xsize,y_e);\
  6598.   ctx.stroke();\
  6599.   ctx.closePath();\
  6600.  };\
  6601. };\
  6602. ctx.restore();\
  6603. };",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
  6604.     break;
  6605.  
  6606. case DRAW_XLOGSCALE:
  6607. fprintf(js_include_file,"\n<!-- draw xlogscale -->\n\
  6608. var draw_grid%d = function(canvas_type,line_width,major_color,minor_color,major_opacity,minor_opacity,font_size,font_family,font_color,use_axis_numbering,ymajor,yminor,precision){\
  6609. var obj;\
  6610. if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
  6611.  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
  6612. }\
  6613. else\
  6614. {\
  6615.  obj = create_canvas%d(canvas_type,xsize,ysize);\
  6616. };\
  6617. var ctx = obj.getContext(\"2d\");\
  6618. ctx.clearRect(0,0,xsize,ysize);\
  6619. ctx.save();\
  6620. ctx.lineWidth = line_width;\
  6621. var prec = Math.log(precision)/Math.log(10);\
  6622. var x_min = Math.log(xmin)/Math.log(xlogbase);\
  6623. var x_max = Math.log(xmax)/Math.log(xlogbase);\
  6624. var y_min = 0;var y_max = ysize;var x_e;var corr;\
  6625. var xtxt;var ytxt;var num;var xmarge;var ymarge;\
  6626. if(use_axis_numbering == 1){\
  6627.  ctx.font = font_family;\
  6628.  xmarge = ctx.measureText(ymax.toFixed(prec)+' ').width;\
  6629.  ymarge = parseInt(1.5*font_size);\
  6630.  ctx.save();\
  6631.  ctx.fillStyle=\"rgba(255,215,0,0.2)\";\
  6632.  ctx.rect(0,0,xmarge,ysize);\
  6633.  ctx.rect(0,ysize-ymarge,xsize,ysize);\
  6634.  ctx.fill();\
  6635.  ctx.restore();\
  6636. }else{xmarge = 0;ymarge = 0;};\
  6637. if( typeof xaxislabel !== 'undefined' ){\
  6638.  ctx.save();\
  6639.  ctx.font = \"italic \"+font_size+\"px Ariel\";\
  6640.  ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
  6641.  corr =  ctx.measureText(xaxislabel).width;\
  6642.  ctx.fillText(xaxislabel,xsize - 1.5*corr,ysize - 2*font_size);\
  6643.  ctx.restore();\
  6644. };\
  6645. if( typeof yaxislabel !== 'undefined' ){\
  6646.  ctx.save();\
  6647.  ctx.font = \"italic \"+font_size+\"px Ariel\";\
  6648.  ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
  6649.  corr = ctx.measureText(yaxislabel).width;\
  6650.  ctx.translate(xmarge+font_size,corr+font_size);\
  6651.  ctx.rotate(-0.5*Math.PI);\
  6652.  ctx.fillText(yaxislabel,0,0);\
  6653.  ctx.restore();\
  6654. };\
  6655. ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
  6656. ctx.lineWidth = line_width;\
  6657. for(var p = x_min; p <= x_max ; p++){\
  6658.  num = Math.pow(xlogbase,p);\
  6659.  for(var i = 1 ; i < xlogbase ; i++){\
  6660.   x_e = x2px(i*num);\
  6661.   if( i == 1 ){\
  6662.     ctx.lineWidth = line_width;\
  6663.     ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
  6664.    if( use_axis_numbering == 1 && p > x_min ){\
  6665.      xtxt = xlogbase+'^'+p.toFixed(0);\
  6666.      corr = 0.5*(ctx.measureText(xtxt).width);\
  6667.      ctx.fillText(xtxt,x_e - corr,ysize - 4);\
  6668.    };\
  6669.   }else{\
  6670.    ctx.lineWidth = 0.2*line_width;\
  6671.    ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
  6672.   };\
  6673.   if( x_e >= xmarge ){\
  6674.    ctx.beginPath();\
  6675.    ctx.moveTo(x_e,0);\
  6676.    ctx.lineTo(x_e,ysize - ymarge);\
  6677.    ctx.stroke();\
  6678.    ctx.closePath();\
  6679.   };\
  6680.  };\
  6681. };\
  6682. var stepy = Math.abs(y2px(ymajor) - y2px(0));\
  6683. var minor_step = stepy / yminor;\
  6684. for(var y = 0 ; y < ysize - stepy ; y = y + stepy){\
  6685.  ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
  6686.  ctx.lineWidth = line_width;\
  6687.  ctx.beginPath();\
  6688.  ctx.moveTo(xmarge,y);\
  6689.  ctx.lineTo(xsize,y);\
  6690.  ctx.stroke();\
  6691.  ctx.closePath();\
  6692.  if( use_axis_numbering == 1){\
  6693.   ytxt = (px2y(y)).toFixed(prec);\
  6694.   ctx.fillText( ytxt,0 ,y + 0.5*font_size );\
  6695.  };\
  6696.  for(var dy = 1 ; dy < yminor ; dy++){\
  6697.   ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
  6698.   ctx.lineWidth = 0.2*line_width;\
  6699.   ctx.beginPath();\
  6700.   ctx.moveTo(xmarge,y+dy*minor_step);\
  6701.   ctx.lineTo(xsize,y+dy*minor_step);\
  6702.   ctx.stroke();\
  6703.   ctx.closePath();\
  6704.  };\
  6705. };\
  6706. ctx.restore();\
  6707. };",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
  6708.     break;
  6709. case DRAW_YLOGSCALE:
  6710. fprintf(js_include_file,"\n<!-- draw ylogscale -->\n\
  6711. var draw_grid%d = function(canvas_type,line_width,major_color,minor_color,major_opacity,minor_opacity,font_size,font_family,font_color,use_axis_numbering,xmajor,xminor,precision){\
  6712. var obj;\
  6713. if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
  6714.  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
  6715. }\
  6716. else\
  6717. {\
  6718.  obj = create_canvas%d(canvas_type,xsize,ysize);\
  6719. };\
  6720. var ctx = obj.getContext(\"2d\");\
  6721. ctx.clearRect(0,0,xsize,ysize);\
  6722. ctx.save();\
  6723. ctx.lineWidth = line_width;\
  6724. var y_min = Math.log(ymin)/Math.log(ylogbase);\
  6725. var y_max = Math.log(ymax)/Math.log(ylogbase);\
  6726. var x_min = 0;var x_max = xsize;var y_s;var y_e;var num;var xmarge;var ymarge;\
  6727. if(use_axis_numbering == 1){\
  6728.  ctx.font = font_family;\
  6729.  xmarge = ctx.measureText(ylogbase+\"^\"+y_max.toFixed(0)+' ').width;\
  6730.  ymarge = 2*font_size;\
  6731.  ctx.save();\
  6732.  ctx.fillStyle=\"rgba(255,215,0,0.2)\";\
  6733.  ctx.rect(0,0,xmarge,ysize);\
  6734.  ctx.rect(0,ysize-ymarge,xsize,ysize);\
  6735.  ctx.fill();\
  6736.  ctx.restore();\
  6737. }else{xmarge = 0;ymarge = 0;};\
  6738. if( typeof xaxislabel !== 'undefined' ){\
  6739.  ctx.save();\
  6740.  ctx.font = \"italic \"+font_size+\"px Ariel\";\
  6741.  ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
  6742.  corr =  ctx.measureText(xaxislabel).width;\
  6743.  ctx.fillText(xaxislabel,xsize - 1.5*corr,ysize - 2*font_size);\
  6744.  ctx.restore();\
  6745. };\
  6746. if( typeof yaxislabel !== 'undefined' ){\
  6747.  ctx.save();\
  6748.  ctx.font = \"italic \"+font_size+\"px Ariel\";\
  6749.  ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
  6750.  corr = ctx.measureText(yaxislabel).width;\
  6751.  ctx.translate(xmarge+font_size,corr+font_size);\
  6752.  ctx.rotate(-0.5*Math.PI);\
  6753.  ctx.fillText(yaxislabel,0,0);\
  6754.  ctx.restore();\
  6755. };\
  6756. ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
  6757. ctx.lineWidth = line_width;\
  6758. for(var p = y_min; p <= y_max ; p++){\
  6759.  num = Math.pow(ylogbase,p);\
  6760.  for(var i = 1 ; i < ylogbase ; i++){\
  6761.   y_e = y2px(i*num);\
  6762.   if( i == 1 ){\
  6763.    ctx.lineWidth = line_width;\
  6764.    ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
  6765.    if( use_axis_numbering == 1 && p > y_min){\
  6766.     ctx.fillText(ylogbase+'^'+p.toFixed(0),0,y_e);\
  6767.    };\
  6768.   }else{\
  6769.    ctx.lineWidth = 0.2*line_width;\
  6770.    ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
  6771.   };\
  6772.   ctx.beginPath();\
  6773.   ctx.moveTo(xmarge,y_e);\
  6774.   ctx.lineTo(xsize,y_e);\
  6775.   ctx.stroke();\
  6776.   ctx.closePath();\
  6777.  };\
  6778. };\
  6779. var stepx = Math.abs(x2px(xmajor) - x2px(0));\
  6780. var minor_step = stepx / xminor;\
  6781. var prec = Math.log(precision)/Math.log(10);\
  6782. var xtxt;var corr;var flip = 0;\
  6783. for(var x = stepx ; x < xsize ; x = x + stepx){\
  6784.  ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
  6785.  ctx.lineWidth = line_width;\
  6786.  ctx.beginPath();\
  6787.  ctx.moveTo(x,ysize-ymarge);\
  6788.  ctx.lineTo(x,0);\
  6789.  ctx.stroke();\
  6790.  ctx.closePath();\
  6791.  if( use_axis_numbering == 1){\
  6792.   xtxt = (px2x(x)).toFixed(prec);\
  6793.   corr = 0.5*(ctx.measureText(xtxt).width);\
  6794.   if(flip == 0 ){flip = 1;ctx.fillText( xtxt,x - corr ,ysize - 0.2*font_size );}else{\
  6795.   flip = 0;ctx.fillText( xtxt,x - corr ,ysize - 1.2*font_size );};\
  6796.  };\
  6797.  for(var dx = 1 ; dx < xminor ; dx++){\
  6798.   ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
  6799.   ctx.lineWidth = 0.2*line_width;\
  6800.   ctx.beginPath();\
  6801.   ctx.moveTo(x+dx*minor_step,ysize - ymarge);\
  6802.   ctx.lineTo(x+dx*minor_step,0);\
  6803.   ctx.stroke();\
  6804.   ctx.closePath();\
  6805.  };\
  6806. };\
  6807. ctx.restore();\
  6808. };",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
  6809.     break;
  6810.     default:break;
  6811.    }
  6812.   }
  6813.  }
  6814.   return;
  6815. }
  6816.  
  6817. void check_string_length(int L){
  6818.  if(L<1 || L > MAX_BUFFER-1){
  6819.   canvas_error("problem with your arguments to command...");
  6820.  }
  6821.  return;
  6822. }
  6823.  
  6824.  
  6825. int get_token(FILE *infile){
  6826.         int     c,i=0;
  6827.         char    temp[MAX_INT], *input_type;
  6828.         char    *line="line",
  6829.         *audio="audio",
  6830.         *blink="blink",
  6831.         *arrowhead="arrowhead",
  6832.         *crosshairsize="crosshairsize",
  6833.         *crosshair="crosshair",
  6834.         *crosshairs="crosshairs",
  6835.         *audioobject="audioobject",
  6836.         *style="style",
  6837.         *mouse="mouse",
  6838.         *mousex="mousex",
  6839.         *mousey="mousey",
  6840.         *mouse_display="display",
  6841.         *mouse_degree="mouse_degree",
  6842.         *userdraw="userdraw",
  6843.         *highlight="highlight",
  6844.         *http="http",
  6845.         *rays="rays",
  6846.         *dashtype="dashtype",
  6847.         *dashed="dashed",
  6848.         *filled="filled",
  6849.         *lattice="lattice",
  6850.         *parallel="parallel",
  6851.         *segment="segment",
  6852.         *segments="segments",
  6853.         *dsegment="dsegment",
  6854.         *seg="seg",
  6855.         *bgimage="bgimage",
  6856.         *bgcolor="bgcolor",
  6857.         *strokecolor="strokecolor",
  6858.         *backgroundimage="backgroundimage",
  6859.         *text="text",
  6860.         *textup="textup",
  6861.         *mouseprecision="mouseprecision",
  6862.         *precision="precision",
  6863.         *plotsteps="plotsteps",
  6864.         *plotstep="plotstep",
  6865.         *tsteps="tsteps",
  6866.         *curve="curve",
  6867.         *dcurve="dcurve",
  6868.         *plot="plot",
  6869.         *dplot="dplot",
  6870.         *levelcurve="levelcurve",
  6871.         *fontsize="fontsize",
  6872.         *fontcolor="fontcolor",
  6873.         *axis="axis",
  6874.         *axisnumbering="axisnumbering",
  6875.         *axisnumbers="axisnumbers",
  6876.         *arrow="arrow",
  6877.         *darrow="darrow",
  6878.         *arrow2="arrow2",
  6879.         *darrow2="darrow2",
  6880.         *arrows="arrows",
  6881.         *arrows2="arrows2",
  6882.         *zoom="zoom",
  6883.         *grid="grid",
  6884.         *hline="hline",
  6885.         *dhline="dhline",
  6886.         *drag="drag",
  6887.         *horizontalline="horizontalline",
  6888.         *vline="vline",
  6889.         *dvline="dvline",
  6890.         *verticalline="verticalline",
  6891.         *triangle="triangle",
  6892.         *ftriangle="ftriangle",
  6893.         *mathml="mathml",
  6894.         *html="html",
  6895.         *input="input",
  6896.         *clearbutton="clearbutton",
  6897.         *inputstyle="inputstyle",
  6898.         *textarea="textarea",
  6899.         *trange="trange",
  6900.         *ranget="ranget",
  6901.         *xrange="xrange",
  6902.         *yrange="yrange",
  6903.         *rangex="rangex",
  6904.         *rangey="rangey",
  6905.         *polyline="polyline",
  6906.         *lines="lines",
  6907.         *poly="poly",
  6908.         *polygon="polygon",
  6909.         *fpolygon="fpolygon",
  6910.         *fpoly="fpoly",
  6911.         *filledpoly="filledpoly",
  6912.         *filledpolygon="filledpolygon",
  6913.         *rect="rect",
  6914.         *frect="frect",
  6915.         *rectangle="rectangle",
  6916.         *frectangle="frectangle",
  6917.         *square="square",
  6918.         *fsquare="fsquare",
  6919.         *dline="dline",
  6920.         *arc="arc",
  6921.         *filledarc="filledarc",
  6922.         *size="size",
  6923.         *string="string",
  6924.         *stringup="stringup",
  6925.         *copy="copy",
  6926.         *copyresized="copyresized",
  6927.         *opacity="opacity",
  6928.         *transparent="transparent",
  6929.         *fill="fill",
  6930.         *point="point",
  6931.         *points="points",
  6932.         *linewidth="linewidth",
  6933.         *circle="circle",
  6934.         *circles="circles",
  6935.         *fcircle="fcircle",
  6936.         *disk="disk",
  6937.         *comment="#",
  6938.         *end="end",
  6939.         *ellipse="ellipse",
  6940.         *fellipse="fellipse",
  6941.         *rotate="rotate",
  6942.         *affine="affine",
  6943.         *killaffine="killaffine",
  6944.         *fontfamily="fontfamily",
  6945.         *fillcolor="fillcolor",
  6946.         *clicktile="clicktile",
  6947.         *clicktile_colors="clicktile_colors",
  6948.         *translation="translation",
  6949.         *translate="translate",
  6950.         *killtranslation="killtranslation",
  6951.         *killtranslate="killtranslate",
  6952.         *onclick="onclick",
  6953.         *roundrect="roundrect",
  6954.         *froundrect="froundrect",
  6955.         *roundrectangle="roundrectangle",
  6956.         *patternfill="patternfill",
  6957.         *hatchfill="hatchfill",
  6958.         *diafill="diafill",
  6959.         *diamondfill="diamondfill",
  6960.         *dotfill="dotfill",
  6961.         *gridfill="gridfill",
  6962.         *imagefill="imagefill",
  6963.         *xlogbase="xlogbase",
  6964.         *ylogbase="ylogbase",
  6965.         *xlogscale="xlogscale",
  6966.         *ylogscale="ylogscale",
  6967.         *xylogscale="xylogscale",
  6968.         *intooltip="intooltip",
  6969.         *replyformat="replyformat",
  6970.         *floodfill="floodfill",
  6971.         *filltoborder="filltoborder",
  6972.         *clickfill="clickfill",
  6973.         *setpixel="setpixel",
  6974.         *pixels="pixels",
  6975.         *pixelsize="pixelsize",
  6976.         *clickfillmarge="clickfillmarge",
  6977.         *xaxis="xaxis",
  6978.         *yaxis="yaxis",
  6979.         *xaxistext="xaxistext",
  6980.         *yaxistext="yaxistext",
  6981.         *piechart="piechart",
  6982.         *legend="legend",
  6983.         *legendcolors="legendcolors",
  6984.         *xlabel="xlabel",
  6985.         *ylabel="ylabel",
  6986.         *barchart="barchart",
  6987.         *linegraph="linegraph",
  6988.         *clock="clock",
  6989.         *animate="animate",
  6990.         *video="video",
  6991.         *status="status",
  6992.         *nostatus="nostatus",
  6993.         *snaptogrid="snaptogrid",
  6994.         *xsnaptogrid="xsnaptogrid",
  6995.         *ysnaptogrid="ysnaptogrid",
  6996.         *userinput_xy="userinput_xy",
  6997.         *userinput_function="userinput_function",
  6998.         *usertextarea_xy="usertextarea_xy",
  6999.         *userinput="userinput",
  7000.         *jsmath="jsmath",
  7001.         *trace_jscurve="trace_jscurve",
  7002.         *setlimits="setlimits",
  7003.         *jscurve="jscurve",
  7004.         *jsplot="jsplot",
  7005.         *sgraph="sgraph",
  7006.         *title="title",
  7007.         *centerstring="centerstring",
  7008.         *xunit="xunit",
  7009.         *yunit="yunit",
  7010.         *slider="slider",
  7011.         *killslider="killslider",
  7012.         *angle="angle",
  7013.         *halfline="halfline",
  7014.         *demiline="demiline",
  7015.         *functionlabel="functionlabel";
  7016.  
  7017.         while(((c = getc(infile)) != EOF)&&(c!='\n')&&(c!=',')&&(c!='=')&&(c!='\r')){
  7018.             if( i == 0 && (c == ' ' || c == '\t') ){
  7019.         continue; /* white spaces or tabs allowed before first command identifier */
  7020.             }
  7021.             else
  7022.             {
  7023.         if( c == ' ' || c == '\t' ){
  7024.             break;
  7025.         }
  7026.         else
  7027.         {
  7028.             temp[i] = c;
  7029.             if(i > MAX_INT - 2){canvas_error("command string too long !");}
  7030.             i++;
  7031.         }
  7032.             }
  7033.             if(temp[0] == '#') break;
  7034.         }
  7035.         if (c == EOF) finished = 1;
  7036.  
  7037.         if (c == '\n' || c == '\r') {
  7038.         line_number++;
  7039.         if (i == 0) { return EMPTY; }
  7040.         } else if (c == EOF) {
  7041.         return 0;
  7042.         }
  7043.  
  7044.         temp[i]='\0';
  7045.         input_type=(char*)my_newmem(strlen(temp));
  7046.         snprintf(input_type,sizeof(temp),"%s",temp);
  7047.  
  7048.         if( strcmp(input_type, size) == 0 ){
  7049.         free(input_type);
  7050.         return SIZE;
  7051.         }
  7052.         if( strcmp(input_type, xrange) == 0 ){
  7053.         free(input_type);
  7054.         return XRANGE;
  7055.         }
  7056.         if( strcmp(input_type, rangex) == 0 ){
  7057.         free(input_type);
  7058.         return XRANGE;
  7059.         }
  7060.         if( strcmp(input_type, trange) == 0 ){
  7061.         free(input_type);
  7062.         return TRANGE;
  7063.         }
  7064.         if( strcmp(input_type, ranget) == 0 ){
  7065.         free(input_type);
  7066.         return TRANGE;
  7067.         }
  7068.         if( strcmp(input_type, yrange) == 0 ){
  7069.         free(input_type);
  7070.         return YRANGE;
  7071.         }
  7072.         if( strcmp(input_type, rangey) == 0 ){
  7073.         free(input_type);
  7074.         return YRANGE;
  7075.         }
  7076.         if( strcmp(input_type, linewidth) == 0 ){
  7077.         free(input_type);
  7078.         return LINEWIDTH;
  7079.         }
  7080.         if( strcmp(input_type, dashed) == 0 ){
  7081.         free(input_type);
  7082.         return DASHED;
  7083.         }
  7084.         if( strcmp(input_type, dashtype) == 0 ){
  7085.         free(input_type);
  7086.         return DASHTYPE;
  7087.         }
  7088.         if( strcmp(input_type, axisnumbering) == 0 ){
  7089.         free(input_type);
  7090.         return AXIS_NUMBERING;
  7091.         }
  7092.         if( strcmp(input_type, axisnumbers) == 0 ){
  7093.         free(input_type);
  7094.         return AXIS_NUMBERING;
  7095.         }
  7096.         if( strcmp(input_type, axis) == 0 ){
  7097.         free(input_type);
  7098.         return AXIS;
  7099.         }
  7100.         if( strcmp(input_type, grid) == 0 ){
  7101.         free(input_type);
  7102.         return GRID;
  7103.         }
  7104.         if( strcmp(input_type, parallel) == 0 ){
  7105.         free(input_type);
  7106.         return PARALLEL;
  7107.         }
  7108.         if( strcmp(input_type, hline) == 0 ||  strcmp(input_type, horizontalline) == 0 ){
  7109.         free(input_type);
  7110.         return HLINE;
  7111.         }
  7112.         if( strcmp(input_type, vline) == 0 ||  strcmp(input_type, verticalline) == 0 ){
  7113.         free(input_type);
  7114.         return VLINE;
  7115.         }
  7116.         if( strcmp(input_type, line) == 0 ){
  7117.         free(input_type);
  7118.         return LINE;
  7119.         }
  7120.         if( strcmp(input_type, segments) == 0 ){
  7121.         free(input_type);
  7122.         return SEGMENTS;
  7123.         }
  7124.         if( strcmp(input_type, seg) == 0 ||  strcmp(input_type, segment) == 0 ){
  7125.         free(input_type);
  7126.         return SEGMENT;
  7127.         }
  7128.         if( strcmp(input_type, dsegment) == 0 ){
  7129.         free(input_type);
  7130.         use_dashed = TRUE;
  7131.         return SEGMENT;
  7132.         }
  7133.         if( strcmp(input_type, crosshairsize) == 0 ){
  7134.         free(input_type);
  7135.         return CROSSHAIRSIZE;
  7136.         }
  7137.         if( strcmp(input_type, arrowhead) == 0 ){
  7138.         free(input_type);
  7139.         return ARROWHEAD;
  7140.         }
  7141.         if( strcmp(input_type, crosshairs) == 0 ){
  7142.         free(input_type);
  7143.         return CROSSHAIRS;
  7144.         }
  7145.         if( strcmp(input_type, crosshair) == 0 ){
  7146.         free(input_type);
  7147.         return CROSSHAIR;
  7148.         }
  7149.         if( strcmp(input_type, onclick) == 0 ){
  7150.         free(input_type);
  7151.         return ONCLICK;
  7152.         }
  7153.         if( strcmp(input_type, drag) == 0 ){
  7154.         free(input_type);
  7155.         return DRAG;
  7156.         }
  7157.         if( strcmp(input_type, userdraw) == 0 ){
  7158.         free(input_type);
  7159.         return USERDRAW;
  7160.         }
  7161.         if( strcmp(input_type, highlight) == 0 || strcmp(input_type, style) == 0 ){
  7162.         free(input_type);
  7163.         return STYLE;
  7164.         }
  7165.         if( strcmp(input_type, fillcolor) == 0 ){
  7166.         free(input_type);
  7167.         return FILLCOLOR;
  7168.         }
  7169.         if( strcmp(input_type, strokecolor) == 0 ){
  7170.         free(input_type);
  7171.         return STROKECOLOR;
  7172.         }
  7173.         if( strcmp(input_type, filled) == 0  ){
  7174.         free(input_type);
  7175.         return FILLED;
  7176.         }
  7177.         if( strcmp(input_type, http) == 0 ){
  7178.         free(input_type);
  7179.         return HTTP;
  7180.         }
  7181.         if( strcmp(input_type, rays) == 0 ){
  7182.         free(input_type);
  7183.         return RAYS;
  7184.         }
  7185.         if( strcmp(input_type, lattice) == 0 ){
  7186.         free(input_type);
  7187.         return LATTICE;
  7188.         }
  7189.         if( strcmp(input_type, bgimage) == 0 ){
  7190.         free(input_type);
  7191.         return BGIMAGE;
  7192.         }
  7193.         if( strcmp(input_type, bgcolor) == 0 ){
  7194.         free(input_type);
  7195.         return BGCOLOR;
  7196.         }
  7197.         if( strcmp(input_type, backgroundimage) == 0 ){
  7198.         free(input_type);
  7199.         return BGIMAGE;
  7200.         }
  7201.         if( strcmp(input_type, text) == 0 ){
  7202.         free(input_type);
  7203.         return FLY_TEXT;
  7204.         }
  7205.         if( strcmp(input_type, textup) == 0 ){
  7206.         free(input_type);
  7207.         return FLY_TEXTUP;
  7208.         }
  7209.         if( strcmp(input_type, mouse) == 0 ){
  7210.         free(input_type);
  7211.         return MOUSE;
  7212.         }
  7213.         if( strcmp(input_type, mousex) == 0 ){
  7214.         free(input_type);
  7215.         return MOUSEX;
  7216.         }
  7217.         if( strcmp(input_type, mousey) == 0 ){
  7218.         free(input_type);
  7219.         return MOUSEY;
  7220.         }
  7221.         if( strcmp(input_type, mouse_degree) == 0 ){
  7222.         free(input_type);
  7223.         return MOUSE_DEGREE;
  7224.         }
  7225.         if( strcmp(input_type, mouse_display) == 0 ){
  7226.         free(input_type);
  7227.         return MOUSE_DISPLAY;
  7228.         }
  7229.         if( strcmp(input_type, mouseprecision) == 0 ){
  7230.         free(input_type);
  7231.         return MOUSE_PRECISION;
  7232.         }
  7233.         if( strcmp(input_type, precision) == 0 ){
  7234.         free(input_type);
  7235.         return MOUSE_PRECISION;
  7236.         }
  7237.         if( strcmp(input_type, curve) == 0 ){
  7238.         free(input_type);
  7239.         return CURVE;
  7240.         }
  7241.         if( strcmp(input_type, dcurve) == 0 ){
  7242.         use_dashed = TRUE;
  7243.         free(input_type);
  7244.         return CURVE;
  7245.         }
  7246.         if( strcmp(input_type, plot) == 0 ){
  7247.         free(input_type);
  7248.         return CURVE;
  7249.         }
  7250.         if( strcmp(input_type, dplot) == 0 ){
  7251.         use_dashed = TRUE;
  7252.         free(input_type);
  7253.         return CURVE;
  7254.         }
  7255.         if( strcmp(input_type, levelcurve) == 0 ){
  7256.         free(input_type);
  7257.         return LEVELCURVE;
  7258.         }
  7259.         if( strcmp(input_type, plotsteps) == 0 ){
  7260.         free(input_type);
  7261.         return PLOTSTEPS;
  7262.         }
  7263.         if( strcmp(input_type, plotstep) == 0 ){
  7264.         free(input_type);
  7265.         return PLOTSTEPS;
  7266.         }
  7267.         if( strcmp(input_type, tsteps) == 0 ){
  7268.         free(input_type);
  7269.         return PLOTSTEPS;
  7270.         }
  7271.         if( strcmp(input_type, fontsize) == 0 ){
  7272.         free(input_type);
  7273.         return FONTSIZE;
  7274.         }
  7275.         if( strcmp(input_type, fontcolor) == 0 ){
  7276.         free(input_type);
  7277.         return FONTCOLOR;
  7278.         }
  7279.         if( strcmp(input_type, arrow2) == 0 ){
  7280.         free(input_type);
  7281.         return ARROW2;
  7282.         }
  7283.         if( strcmp(input_type, darrow) == 0 ){
  7284.         free(input_type);
  7285.         use_dashed = TRUE;
  7286.         return ARROW;
  7287.         }
  7288.         if( strcmp(input_type, darrow2) == 0 ){
  7289.         free(input_type);
  7290.         use_dashed = TRUE;
  7291.         return ARROW2;
  7292.         }
  7293.         if( strcmp(input_type, arrows2) == 0 ){
  7294.         free(input_type);
  7295.         return ARROWS2;
  7296.         }
  7297.         if( strcmp(input_type, arrows) == 0 ){
  7298.         free(input_type);
  7299.         return ARROWS;
  7300.         }
  7301.         if( strcmp(input_type, arrow) == 0 ){
  7302.         free(input_type);
  7303.         return ARROW;
  7304.         }
  7305.         if( strcmp(input_type, zoom) == 0 ){
  7306.         free(input_type);
  7307.         return ZOOM;
  7308.         }
  7309.         if( strcmp(input_type, triangle) == 0 ){
  7310.         free(input_type);
  7311.         return TRIANGLE;
  7312.         }
  7313.         if( strcmp(input_type, ftriangle) == 0 ){
  7314.         free(input_type);
  7315.         use_filled = TRUE;
  7316.         return TRIANGLE;
  7317.         }
  7318.         if( strcmp(input_type, input) == 0 ){
  7319.         free(input_type);
  7320.         return INPUT;
  7321.         }
  7322.         if( strcmp(input_type, inputstyle) == 0 ){
  7323.         free(input_type);
  7324.         return INPUTSTYLE;
  7325.         }
  7326.         if( strcmp(input_type, textarea) == 0 ){
  7327.         free(input_type);
  7328.         return TEXTAREA;
  7329.         }
  7330.         if( strcmp(input_type, mathml) == 0 ){
  7331.         free(input_type);
  7332.         return MATHML;
  7333.         }
  7334.         if( strcmp(input_type, html) == 0 ){
  7335.         free(input_type);
  7336.         return MATHML;
  7337.         }
  7338.         if( strcmp(input_type, fontfamily) == 0 ){
  7339.         free(input_type);
  7340.         return FONTFAMILY;
  7341.         }
  7342.         if( strcmp(input_type, lines) == 0  ||  strcmp(input_type, polyline) == 0 ){
  7343.         free(input_type);
  7344.         return POLYLINE;
  7345.         }
  7346.         if( strcmp(input_type, rect) == 0  ||  strcmp(input_type, rectangle) == 0 ){
  7347.         free(input_type);
  7348.         return RECT;
  7349.         }
  7350.         if( strcmp(input_type, roundrect) == 0  ||  strcmp(input_type, roundrectangle) == 0 ){
  7351.         free(input_type);
  7352.         return ROUNDRECT;
  7353.         }
  7354.         if( strcmp(input_type, froundrect) == 0 ){
  7355.         free(input_type);
  7356.         use_filled = TRUE;
  7357.         return ROUNDRECT;
  7358.         }
  7359.         if( strcmp(input_type, square) == 0 ){
  7360.         free(input_type);
  7361.         return SQUARE;
  7362.         }
  7363.         if( strcmp(input_type, fsquare) == 0 ){
  7364.         free(input_type);
  7365.         use_filled = TRUE;
  7366.         return SQUARE;
  7367.         }
  7368.         if( strcmp(input_type, dline) == 0 ){
  7369.         use_dashed = TRUE;
  7370.         free(input_type);
  7371.         return LINE;
  7372.         }
  7373.         if( strcmp(input_type, dvline) == 0 ){
  7374.         use_dashed = TRUE;
  7375.         free(input_type);
  7376.         return VLINE;
  7377.         }
  7378.         if( strcmp(input_type, dhline) == 0 ){
  7379.         use_dashed = TRUE;
  7380.         free(input_type);
  7381.         return HLINE;
  7382.         }
  7383.         if( strcmp(input_type, frect) == 0 || strcmp(input_type, frectangle) == 0 ){
  7384.         use_filled = TRUE;
  7385.         free(input_type);
  7386.         return RECT;
  7387.         }
  7388.         if( strcmp(input_type, circles) == 0 ){
  7389.         free(input_type);
  7390.         return CIRCLES;
  7391.         }
  7392.         if( strcmp(input_type, fcircle) == 0  ||  strcmp(input_type, disk) == 0 ){
  7393.         use_filled = TRUE;
  7394.         free(input_type);
  7395.         return CIRCLE;
  7396.         }
  7397.         if( strcmp(input_type, circle) == 0 ){
  7398.         free(input_type);
  7399.         return CIRCLE;
  7400.         }
  7401.         if( strcmp(input_type, point) == 0 ){
  7402.         free(input_type);
  7403.         return POINT;
  7404.         }
  7405.         if( strcmp(input_type, points) == 0 ){
  7406.         free(input_type);
  7407.         return POINTS;
  7408.         }
  7409.         if( strcmp(input_type, filledarc) == 0 ){
  7410.         use_filled = TRUE;
  7411.         free(input_type);
  7412.         return ARC;
  7413.         }
  7414.         if( strcmp(input_type, arc) == 0 ){
  7415.         free(input_type);
  7416.         return ARC;
  7417.         }
  7418.         if( strcmp(input_type, poly) == 0 ||  strcmp(input_type, polygon) == 0 ){
  7419.         free(input_type);
  7420.         return POLY;
  7421.         }
  7422.         if( strcmp(input_type, fpoly) == 0 ||  strcmp(input_type, filledpoly) == 0 || strcmp(input_type,filledpolygon) == 0  || strcmp(input_type,fpolygon) == 0  ){
  7423.         use_filled = TRUE;
  7424.         free(input_type);
  7425.         return POLY;
  7426.         }
  7427.         if( strcmp(input_type, ellipse) == 0){
  7428.         free(input_type);
  7429.         return ELLIPSE;
  7430.         }
  7431.         if( strcmp(input_type, fill) == 0 ){
  7432.         free(input_type);
  7433.         return FLOODFILL;
  7434.         }
  7435.         if( strcmp(input_type, string) == 0 ){
  7436.         free(input_type);
  7437.         return STRING;
  7438.         }
  7439.         if( strcmp(input_type, stringup) == 0 ){
  7440.         free(input_type);
  7441.         return STRINGUP;
  7442.         }
  7443.         if( strcmp(input_type, opacity) == 0 ){
  7444.         free(input_type);
  7445.         return OPACITY;
  7446.         }
  7447.         if( strcmp(input_type, comment) == 0){
  7448.         free(input_type);
  7449.         return COMMENT;
  7450.         }
  7451.         if( strcmp(input_type, end) == 0){
  7452.         free(input_type);
  7453.         return END;
  7454.         }
  7455.         if( strcmp(input_type, fellipse) == 0){
  7456.         free(input_type);
  7457.         use_filled = TRUE;
  7458.         return ELLIPSE;
  7459.         }
  7460.         if( strcmp(input_type, blink) == 0 ){
  7461.         free(input_type);
  7462.         return BLINK;
  7463.         }
  7464.         if( strcmp(input_type, clearbutton) == 0){
  7465.         free(input_type);
  7466.         return CLEARBUTTON;
  7467.         }
  7468.         if( strcmp(input_type, translation) == 0 ||  strcmp(input_type, translate) == 0  ){
  7469.         free(input_type);
  7470.         return TRANSLATION;
  7471.         }
  7472.         if( strcmp(input_type, killtranslation) == 0 ||  strcmp(input_type, killtranslate) == 0){
  7473.         free(input_type);
  7474.         return KILLTRANSLATION;
  7475.         }
  7476.         if( strcmp(input_type, rotate) == 0){
  7477.         free(input_type);
  7478.         return ROTATE;
  7479.         }
  7480.         if( strcmp(input_type, affine) == 0){
  7481.         free(input_type);
  7482.         return AFFINE;
  7483.         }
  7484.         if( strcmp(input_type, killaffine) == 0){
  7485.         free(input_type);
  7486.         return KILLAFFINE;
  7487.         }
  7488.         if( strcmp(input_type, audio) == 0 ){
  7489.         free(input_type);
  7490.         return AUDIO;
  7491.         }
  7492.         if( strcmp(input_type, audioobject) == 0 ){
  7493.         free(input_type);
  7494.         return AUDIOOBJECT;
  7495.         }
  7496.         if( strcmp(input_type, slider) == 0 ){
  7497.         free(input_type);
  7498.         return SLIDER;
  7499.         }
  7500.         if( strcmp(input_type, killslider) == 0 ){
  7501.         free(input_type);
  7502.         return KILLSLIDER;
  7503.         }
  7504.         if( strcmp(input_type, copy) == 0 ){
  7505.         free(input_type);
  7506.         return COPY;
  7507.         }
  7508.         if( strcmp(input_type, copyresized) == 0 ){
  7509.         free(input_type);
  7510.         return COPYRESIZED;
  7511.         }
  7512.         if( strcmp(input_type, patternfill) == 0 ){
  7513.         free(input_type);
  7514.         return PATTERNFILL;
  7515.         }
  7516.         if( strcmp(input_type, hatchfill) == 0 ){
  7517.         free(input_type);
  7518.         return HATCHFILL;
  7519.         }
  7520.         if( strcmp(input_type, diafill) == 0  || strcmp(input_type, diamondfill) == 0  ){
  7521.         free(input_type);
  7522.         return DIAMONDFILL;
  7523.         }
  7524.         if( strcmp(input_type, dotfill) == 0 ){
  7525.         free(input_type);
  7526.         return DOTFILL;
  7527.         }
  7528.         if( strcmp(input_type, gridfill) == 0 ){
  7529.         free(input_type);
  7530.         return GRIDFILL;
  7531.         }
  7532.         if( strcmp(input_type, imagefill) == 0 ){
  7533.         free(input_type);
  7534.         return IMAGEFILL;
  7535.         }
  7536.         if( strcmp(input_type, clicktile_colors) == 0 ){
  7537.         free(input_type);
  7538.         return CLICKTILE_COLORS;
  7539.         }
  7540.         if( strcmp(input_type, clicktile) == 0 ){
  7541.         free(input_type);
  7542.         return CLICKTILE;
  7543.         }
  7544.         if( strcmp(input_type, xlogscale) == 0 ){
  7545.         free(input_type);
  7546.         return XLOGSCALE;
  7547.         }
  7548.         if( strcmp(input_type, ylogscale) == 0 ){
  7549.         free(input_type);
  7550.         return YLOGSCALE;
  7551.         }
  7552.         if( strcmp(input_type, xylogscale) == 0 ){
  7553.         free(input_type);
  7554.         return XYLOGSCALE;
  7555.         }
  7556.         if( strcmp(input_type, ylogscale) == 0 ){
  7557.         free(input_type);
  7558.         return YLOGSCALE;
  7559.         }
  7560.         if( strcmp(input_type, xlogbase) == 0 ){
  7561.         free(input_type);
  7562.         return XLOGBASE;
  7563.         }
  7564.         if( strcmp(input_type, ylogbase) == 0 ){
  7565.         free(input_type);
  7566.         return YLOGBASE;
  7567.         }
  7568.         if( strcmp(input_type, intooltip) == 0 ){
  7569.         free(input_type);
  7570.         return INTOOLTIP;
  7571.         }
  7572.         if( strcmp(input_type,video) == 0 ){
  7573.         free(input_type);
  7574.         return VIDEO;
  7575.         }
  7576.         if( strcmp(input_type,floodfill) == 0 || strcmp(input_type,fill) == 0 ){
  7577.         free(input_type);
  7578.         return FLOODFILL;
  7579.         }
  7580.         if( strcmp(input_type,filltoborder) == 0 ){
  7581.         free(input_type);
  7582.         return FILLTOBORDER;
  7583.         }
  7584.         if( strcmp(input_type,clickfill) == 0 ){
  7585.         free(input_type);
  7586.         return CLICKFILL;
  7587.         }
  7588.         if( strcmp(input_type, replyformat) == 0 ){
  7589.         free(input_type);
  7590.         return REPLYFORMAT;
  7591.         }
  7592.         if( strcmp(input_type, pixelsize) == 0 ){
  7593.         free(input_type);
  7594.         return PIXELSIZE;
  7595.         }
  7596.         if( strcmp(input_type, setpixel) == 0 ){
  7597.         free(input_type);
  7598.         return SETPIXEL;
  7599.         }
  7600.         if( strcmp(input_type, pixels) == 0 ){
  7601.         free(input_type);
  7602.         return PIXELS;
  7603.         }
  7604.         if( strcmp(input_type, clickfillmarge) == 0 ){
  7605.         free(input_type);
  7606.         return CLICKFILLMARGE;
  7607.         }
  7608.         if( strcmp(input_type, xaxis) == 0 || strcmp(input_type, xaxistext) == 0 ){
  7609.         free(input_type);
  7610.         return X_AXIS_STRINGS;
  7611.         }
  7612.         if( strcmp(input_type, yaxis) == 0  ||  strcmp(input_type, yaxistext) == 0 ){
  7613.         free(input_type);
  7614.         return Y_AXIS_STRINGS;
  7615.         }
  7616.         if( strcmp(input_type, piechart) == 0  ){
  7617.         free(input_type);
  7618.         return PIECHART;
  7619.         }
  7620.         if( strcmp(input_type, barchart) == 0  ){
  7621.         free(input_type);
  7622.         return BARCHART;
  7623.         }
  7624.         if( strcmp(input_type, linegraph) == 0  ){
  7625.         free(input_type);
  7626.         return LINEGRAPH;
  7627.         }
  7628.         if( strcmp(input_type, clock) == 0  ){
  7629.         free(input_type);
  7630.         return CLOCK;
  7631.         }
  7632.         if( strcmp(input_type, legend) == 0  ){
  7633.         free(input_type);
  7634.         return LEGEND;
  7635.         }
  7636.         if( strcmp(input_type, legendcolors) == 0  ){
  7637.         free(input_type);
  7638.         return LEGENDCOLORS;
  7639.         }
  7640.         if( strcmp(input_type, xlabel) == 0  ){
  7641.         free(input_type);
  7642.         return XLABEL;
  7643.         }
  7644.         if( strcmp(input_type, ylabel) == 0  ){
  7645.         free(input_type);
  7646.         return YLABEL;
  7647.         }
  7648.         if( strcmp(input_type, animate) == 0  ){
  7649.         free(input_type);
  7650.         return ANIMATE;
  7651.         }
  7652.         /* these are bitmap related flydraw commmands...must be removed. eventually */
  7653.         if( strcmp(input_type, transparent) == 0 ){
  7654.         free(input_type);
  7655.         return TRANSPARENT;
  7656.         }
  7657.         if( strcmp(input_type, status) == 0 || strcmp(input_type, nostatus) == 0 ){
  7658.         free(input_type);
  7659.         return STATUS;
  7660.         }
  7661.         if( strcmp(input_type, snaptogrid) == 0 ){
  7662.         free(input_type);
  7663.         return SNAPTOGRID;
  7664.         }
  7665.         if( strcmp(input_type, xsnaptogrid) == 0 ){
  7666.         free(input_type);
  7667.         return XSNAPTOGRID;
  7668.         }
  7669.         if( strcmp(input_type, ysnaptogrid) == 0 ){
  7670.         free(input_type);
  7671.         return YSNAPTOGRID;
  7672.         }
  7673.         if( strcmp(input_type, userinput_xy) == 0 ){
  7674.         free(input_type);
  7675.         return USERINPUT_XY;
  7676.         }
  7677.         if( strcmp(input_type, userinput_function) == 0 ){
  7678.         free(input_type);
  7679.         return USERINPUT_FUNCTION;
  7680.         }
  7681.         if( strcmp(input_type, usertextarea_xy) == 0 ){
  7682.         free(input_type);
  7683.         return USERTEXTAREA_XY;
  7684.         }
  7685.         if( strcmp(input_type, userinput) == 0 ){
  7686.         free(input_type);
  7687.         return USERINPUT;
  7688.         }
  7689.         if( strcmp(input_type, sgraph) == 0 ){
  7690.         free(input_type);
  7691.         return SGRAPH;
  7692.         }
  7693.         if( strcmp(input_type, jsmath) == 0 ){
  7694.         free(input_type);
  7695.         return JSMATH;
  7696.         }
  7697.         if( strcmp(input_type, trace_jscurve) == 0 ){
  7698.         free(input_type);
  7699.         return TRACE_JSCURVE;
  7700.         }
  7701.         if( strcmp(input_type, jscurve) == 0  ||  strcmp(input_type, jsplot) == 0 ){
  7702.         free(input_type);
  7703.         return JSCURVE;
  7704.         }
  7705.         if( strcmp(input_type, centerstring) == 0 || strcmp(input_type, title) == 0 ){
  7706.         free(input_type);
  7707.         return CENTERSTRING;
  7708.         }
  7709.         if( strcmp(input_type, setlimits) == 0 ){
  7710.         free(input_type);
  7711.         return SETLIMITS;
  7712.         }
  7713.         if( strcmp(input_type, xunit) == 0 ){
  7714.         free(input_type);
  7715.         return XUNIT;
  7716.         }
  7717.         if( strcmp(input_type, yunit) == 0 ){
  7718.         free(input_type);
  7719.         return YUNIT;
  7720.         }
  7721.         if( strcmp(input_type, angle) == 0 ){
  7722.         free(input_type);
  7723.         return ANGLE;
  7724.         }
  7725.         if( strcmp(input_type, halfline) == 0 || strcmp(input_type, demiline) == 0  ){
  7726.         free(input_type);
  7727.         return HALFLINE;
  7728.         }
  7729.         if( strcmp(input_type, functionlabel) == 0 ){
  7730.         free(input_type);
  7731.         return FUNCTION_LABEL;
  7732.         }
  7733.         free(input_type);
  7734.         ungetc(c,infile);
  7735.         return 0;
  7736. }
  7737.  
  7738.