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  1. /*
  2. 27/7/2013 version 0.01
  3. "Inspired" by FLY program: http://martin.gleeson.com/fly
  4. *********************************************************************************
  5. * J.M. Evers 7/2013                                                             *
  6. * This is all just amateur scriblings... So no copyrights.                      *
  7. * This source code file, and compiled objects derived from it,                  *
  8. * can be used and distributed without restriction, including for commercial use *
  9. * No warrenty whatsoever                                                        *
  10. *********************************************************************************
  11. */
  12. #include <stdio.h>
  13. #include <stdlib.h>
  14. #include <errno.h>
  15. #include <string.h>
  16. #include <unistd.h>
  17. #include <time.h> /* use for random id's */
  18. #include <math.h>
  19. /*
  20. #include <ctype.h>
  21. 11/2013
  22. removed: FreeBSD 9.0 / 9.1 C-lib bug...in chroot it will result in: Undefined symbol "_ThreadRuneLocale" implemented own versions of tolower() / toupper()
  23. Clang is fine (FreeBSD 10.0)
  24. */
  25.  
  26. /*
  27. in case svgdraw is in ~/src/Misc/svgdraw
  28. #include "../svgdraw/include/matheval.h"
  29. */
  30. #include "include/matheval.h"
  31. #include <assert.h>
  32. #include "canvasdraw.h"
  33. #include<sys/stat.h>
  34.  
  35. /* needed for gettimeofday */
  36. #include <sys/time.h>
  37. #include "canvasmacro.c"
  38. /******************************************************************************
  39. **  Internal Functions
  40. ******************************************************************************/
  41. void    add_to_buffer(char *tmp); /* add tmp_buffer to the buffer */
  42. void    sync_input(FILE *infile);/* proceed with inputfile */
  43. void    canvas_error(char *msg);
  44. void    add_javascript_functions(int js_functions[], int canvas_root_id);
  45. void    reset();/* reset some global variables like "use_filled" , "use_dashed" */
  46. int     get_token(FILE *infile); /* read next char until EOL*/
  47. int     x2px(double x);
  48. int     y2px(double y);
  49. double  px2x(int x);
  50. double  px2y(int y);
  51. double  get_real(FILE *infile,int last); /* read a values; calculation and symbols allowed */
  52. char    *str_replace ( const char *word, const char *sub_word, const char *rep_word );
  53. char    *get_color(FILE *infile,int last); /* read hex-color or colorname -> hex */
  54. char    *get_string(FILE *infile,int last); /* get the string at theend of a command */
  55. char    *get_string_argument(FILE *infile,int last); /* the same, but with "comma" as  separator */
  56. char    *convert_hex2rgb(char *hexcolor);
  57. void    add_read_canvas(int reply_format);
  58. void    make_js_include(int canvas_root_id);
  59. void    check_string_length(int length);/* checks if the length of string argument of command is correct */
  60. FILE    *js_include_file;
  61. FILE    *get_file(int *line_number, char **filename);
  62. FILE    *infile;    /* will be stdin */
  63. /******************************************************************************
  64. ** global
  65. ******************************************************************************/
  66. int finished = FALSE;/* main variable for signalling the end of the fly-script ; if finished = 1 ; write to stdout or canvasz */
  67. int line_number = 1;/* used in canvas_error() ; keep track of line number in canvasdraw/fly - script */
  68. /* set some variables to avoid trouble (NaN) in case of syntax and other usage errors */
  69. int xsize = 320;
  70. int ysize = 320;
  71. double xmin = 0.0;
  72. double xmax = 320.0;
  73. double ymin = 0.0;
  74. double ymax = 320.0;
  75. double tmax = 2;
  76. double tmin = -2;
  77. /* flag to indicate parsing of line status */
  78. int done = FALSE;
  79. int type; /* eg command number */
  80. int onclick = 0;/* 0 = noninteractive ; 1 = onclick ; 2 = draggable*/
  81. int use_affine = FALSE;
  82. int use_rotate = FALSE;
  83. int use_translate = FALSE;
  84. int use_filled = FALSE;
  85. int use_dashed = FALSE; /* dashing not natively supported in firefox  , for now... */
  86. char buffer[MAX_BUFFER];/* contains js-functions with arguments ... all other basic code is directly printed into js-include file */
  87.  
  88. /******************************************************************************
  89. ** Main Program
  90. ******************************************************************************/
  91. int main(int argc, char *argv[]){
  92.     /* need unique id for every call to canvasdraw : rand(); is too slow...will result in many identical id's */
  93.     struct timeval tv;struct timezone tz;gettimeofday(&tv, &tz);unsigned int canvas_root_id = (unsigned int) tv.tv_usec;
  94.     infile = stdin;/* read flyscript via stdin */
  95.     int i,c;
  96.     double double_data[MAX_INT+1];
  97.     int int_data[MAX_INT+1];
  98.     for(i=0;i<MAX_INT;i++){int_data[i]=0;double_data[i]=0;}
  99.     int use_parametric = FALSE;/* will be reset after parametric plotting */
  100.     int use_axis = FALSE;
  101.     int use_axis_numbering = FALSE;
  102.     int use_pan_and_zoom = FALSE;
  103.     int line_width = 1;
  104.     int decimals = 2;
  105.     int precision = 100; /* 10 = 1;100=2;1000=3 decimal display for mouse coordinates or grid coordinate */
  106.     int use_userdraw = FALSE; /* flag to indicate user interaction: incompatible with "drag & drop" code !! */
  107.     int drag_type = -1;/* 0,1,2 : xy,x,y */
  108.     int use_tooltip = FALSE;
  109.     char *tooltip_text = "Click here";
  110.     char *temp = ""; /* */
  111.     char *bgcolor = "";/* used for background of canvas_div ; default is tranparent */
  112.     char *stroke_color = "255,0,0";
  113.     char *fill_color = "0,255,0";
  114.     char *font_family = "12px Ariel"; /* commands xaxistext,yaxistext,legend,text/textup/string/stringup may us this */
  115.     char *font_color = "#00000";
  116.     char *draw_type = "points";
  117.     char *fly_font = "normal";
  118.     char *input_style = "";
  119.     char *flytext = "";
  120.     char *affine_matrix = "[1,0,0,1,0,0]";
  121.     int pixelsize = 1;
  122.     int reply_format = 0;
  123.     int input_cnt = 0;
  124.     int ext_img_cnt = 0;
  125.     int font_size = 12;
  126.     int dashtype[2] = { 2 , 2 };
  127.     int js_function[MAX_JS_FUNCTIONS]; /* javascript functions include objects on demand basis : only once per object type */
  128.     for(i=0;i<MAX_JS_FUNCTIONS;i++){js_function[i]=0;}
  129.     int arrow_head = 8; /* size in px*/
  130.     int crosshair_size = 10; /* size in px*/
  131.     int plot_steps = 250;
  132.     int found_size_command = 0;
  133.     int click_cnt = 1;
  134.     int clock_cnt = 0; /* counts the amount of clocks used -> unique object clock%d */
  135.     int linegraph_cnt = 0; /* identifier for command 'linegraph' ; multiple line graphs may be plotted in a single plot*/
  136.     int use_mouse_coordinates = FALSE;
  137.     double angle = 0.0;
  138.     int translate_x = 0;
  139.     int translate_y = 0;
  140.     int clickfillmarge = 20;
  141.     int animation_type = 9; /* == object type curve in drag library */
  142.     int use_input_xy = 0;
  143.     size_t string_length = 0;
  144.     double stroke_opacity = 0.8;
  145.     double fill_opacity = 0.8;
  146.     char *URL = "http://localhost/images";
  147.     memset(buffer,'\0',MAX_BUFFER);
  148.     void *tmp_buffer = "";
  149.    
  150.     /* default writing a unzipped js-include file into wims getfile directory */
  151.     char *w_wims_session = getenv("w_wims_session");
  152.     if(  w_wims_session == NULL || *w_wims_session == 0 ){
  153.         canvas_error("Hmmm, your wims environment does not exist...\nCanvasdraw should be used within wims.");
  154.     }
  155.     int L0=strlen(w_wims_session) + 21;
  156.     char *getfile_dir = my_newmem(L0); /* create memory to fit string precisely */
  157.     snprintf(getfile_dir,L0, "../sessions/%s/getfile",w_wims_session);/* string will fit precisely  */
  158.     mode_t process_mask = umask(0); /* check if file exists */
  159.     int result = mkdir(getfile_dir, S_IRWXU | S_IRWXG | S_IRWXO);
  160.     if( result == 0 || errno == EEXIST ){
  161.      umask(process_mask); /* be sure to set correct permission */
  162.      char *w_session = getenv("w_session");
  163.      int L1 = (int) (strlen(w_session)) + find_number_of_digits(canvas_root_id) + 48;
  164.     char *getfile_cmd = my_newmem(L1); /* create memory to fit string precisely */
  165.      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 */   
  166.     /* write the include tag to html page:<script type="text/javascript" src="wims.cgi?session=%s&cmd=getfile&special_parm=11223344_js"></script> */
  167.     /* now write file into getfile dir*/
  168.     char *w_wims_home = getenv("w_wims_home"); /* "/home/users/wims" : we need absolute path for location */
  169.     int L2 = (int) (strlen(w_wims_home)) + (int) (strlen(w_wims_session)) + find_number_of_digits(canvas_root_id) + 23;
  170.     char *location = my_newmem(L2); /* create memory to fit string precisely */
  171.     snprintf(location,L2,"%s/sessions/%s/getfile/%d.js",w_wims_home,w_wims_session,canvas_root_id);/*absolute path */
  172.     js_include_file = fopen(location,"w");/* open the file location for writing */
  173.     /* check on opening...if nogood : mount readonly? disk full? permissions not set correctly? */
  174.     if(js_include_file == NULL){ canvas_error("SHOULD NOT HAPPEN : could not write to javascript include file...check your system logfiles !" );}
  175.  
  176. /* ----------------------------------------------------- */
  177. /* while more lines to process */
  178.  
  179.     while(!finished){
  180.         if(line_number>1 && found_size_command == FALSE){canvas_error("command \"size xsize,ysize\" needs to come first ! ");}
  181.         type = get_token(infile);
  182.         done = FALSE;
  183.         /*
  184.         @canvasdraw
  185.         @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...)
  186.         @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> 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();<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.<br />example:<br />size 200,200;xrange -5,5;yrange -5,5;hline 0,0,black;vline 0,0,black<br />plot red,sin(x)<br />drag xy<br />html 0,0,5,-5, &amp;euro; <br />lines green,2,0,2,-2,-2,2,-2,0;rectangle 1,1,4,4,purple;frectangle -1,-1,-4,-4,yellow</li></ul>
  187.         */
  188.         switch(type){
  189.         case END:
  190.         finished = 1;
  191.         done = TRUE;
  192.         break;
  193.         case 0:
  194.             sync_input(infile);
  195.             break;
  196.         case COMMENT:
  197.             sync_input(infile);
  198.             break;
  199.         case EMPTY:
  200.             sync_input(infile);
  201.             break;
  202.         case SIZE:
  203.             /*
  204.             @size width,height
  205.             @set canvas size in pixels
  206.             @mandatory first command
  207.             @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)
  208.             */
  209.             found_size_command = TRUE;
  210.             xsize = (int)(abs(round(get_real(infile,0)))); /* just to be sure that sizes > 0 */
  211.             ysize = (int)(abs(round(get_real(infile,1))));
  212.             /* sometimes we want xrange / yrange to be in pixels...without telling x/y-range */
  213.             xmin = 0;xmax = xsize;
  214.             ymin = 0;ymax = ysize;
  215.  
  216. /*
  217.  The sequence in which stuff is finally printed is important !!
  218.  for example, when writing a 'include.js" the may not be a "script tag <script>" etc etc
  219. */
  220. fprintf(stdout,"\n<script type=\"text/javascript\">var wims_status = \"$status\";</script>\n<!-- canvasdraw div and tooltip placeholder, if needed -->\n<div tabindex=\"0\" id=\"canvas_div%d\" style=\"position:relative;width:%dpx;height:%dpx;\" ></div><div id=\"tooltip_placeholder_div%d\" style=\"display:block\"><span id=\"tooltip_placeholder%d\" style=\"display:none\"></span></div>\n",canvas_root_id,xsize,ysize,canvas_root_id,canvas_root_id);
  221. fprintf(js_include_file,"\n<!-- begin generated javascript include for canvasdraw -->\n");
  222. fprintf(stdout,"<!-- include actual object code via include file -->\n<script type=\"text/javascript\" src=\"%s\"></script>\n",getfile_cmd);
  223. fprintf(js_include_file,"var wims_canvas_function%d = function(){\n<!-- common used stuff -->\n\
  224. var xsize = %d;\
  225. var ysize = %d;\
  226. var precision = 100;\
  227. var canvas_div = document.getElementById(\"canvas_div%d\");\
  228. 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 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 (Math.round((px*(xmax - xmin)/xsize + xmin)*precision))/precision;}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 (Math.round((ymax -py*(ymax - ymin)/ysize)*precision))/precision;}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 -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 parseInt(x2px(rx) - x2px(0));};\
  235. function scale_y_radius(ry){return parseInt(y2px(ry) - y2px(0));};\
  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. var xlogbase = 10;\
  240. var ylogbase = 10;\
  241. var use_xlogscale = 0;\
  242. var use_ylogscale = 0;\
  243. var x_strings = null;\
  244. var y_strings = null;\
  245. var use_pan_and_zoom = 0;\
  246. var x_use_snap_to_grid = 0;\
  247. var y_use_snap_to_grid = 0;\
  248. var xstart = 0;\
  249. var ystart = 0",canvas_root_id,xsize,ysize,canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
  250. /* default add the drag code : nearly always used ...*/
  251. add_drag_code(js_include_file,DRAG_CANVAS,canvas_root_id);
  252.             break;
  253.         case XRANGE:
  254.         /*
  255.         @ xrange xmin,xmax
  256.         @ if not given: 0,xsize (eg in pixels)
  257.         */
  258.             for(i = 0 ; i<2; i++){
  259.                 switch(i){
  260.                     case 0: xmin = get_real(infile,0);break;
  261.                     case 1: xmax = get_real(infile,1);break;
  262.                     default: break;
  263.                 }
  264.             }
  265.             if(xmin >= xmax){canvas_error(" xrange is not OK : xmin &lt; xmax !\n");}
  266.             fprintf(js_include_file,"var xmin = %f;var xmax = %f;",xmin,xmax);
  267.             break;
  268.         case YRANGE:
  269.         /*
  270.         @ yrange ymin,ymax
  271.         @ if not given 0,ysize (eg in pixels)
  272.         */
  273.             for(i = 0 ; i<2; i++){
  274.                 switch(i){
  275.                     case 0: ymin = get_real(infile,0);break;
  276.                     case 1: ymax = get_real(infile,1);break;
  277.                     default: break;
  278.                 }
  279.             }
  280.             if(ymin >= ymax){canvas_error(" yrange is not OK : ymin &lt; ymax !\n");}
  281.             fprintf(js_include_file,"var ymin = %f;var ymax = %f;",ymin,ymax);
  282.             break;
  283.         case TRANGE:
  284.         /*
  285.         @ trange tmin,tmax
  286.         @ default -2,2
  287.         */
  288.             use_parametric = TRUE;
  289.             for(i = 0 ; i<2; i++){
  290.                 switch(i){
  291.                     case 0: tmin = get_real(infile,0);break;
  292.                     case 1: tmax = get_real(infile,1);break;
  293.                     default: break;
  294.                 }
  295.             }
  296.             if(tmin >= tmax ){canvas_error(" trange is not OK : tmin &lt; tmax!\n");}
  297.             break;
  298.         case LINEWIDTH:
  299.         /*
  300.         @ linewidth int
  301.         @ default 1
  302.         */
  303.             line_width = (int) (get_real(infile,1));
  304.             break;
  305.         case ARROWHEAD:
  306.         /*
  307.         @ arrowhead int
  308.         @ default 8 (pixels)
  309.         */
  310.             arrow_head = (int) (get_real(infile,1));
  311.             break;
  312.         case CROSSHAIRSIZE:
  313.         /*
  314.         @ crosshairsize int
  315.         @ default 10 (px)
  316.         */
  317.             crosshair_size = (int) (get_real(infile,1));
  318.             break;
  319.         case CROSSHAIR:
  320.         /*
  321.         @ crosshair x,y,color
  322.         @ draw a single crosshair point at (x;y) in color 'color'
  323.         @ use command 'crosshairsize int' and / or 'linewidth int'  to adust
  324.         @ may be set draggable / onclick
  325.         */
  326.             for(i=0;i<3;i++){
  327.                 switch(i){
  328.                     case 0: double_data[0] = get_real(infile,0);break; /* x */
  329.                     case 1: double_data[1] = get_real(infile,0);break; /* y */
  330.                     case 2: stroke_color = get_color(infile,1);/* name or hex color */
  331.                         decimals = find_number_of_digits(precision);
  332.                         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));\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);
  333.                         click_cnt++;reset();
  334.                         break;
  335.                     default:break;
  336.                 }
  337.             }
  338.             break;
  339.         case CROSSHAIRS:
  340.         /*
  341.         @ crosshairs color,x1,y1,x2,y2,...,x_n,y_n
  342.         @ draw multiple crosshair points at given coordinates in color 'color'
  343.         @ use command 'crosshairsize int' and / or 'linewidth int'  to adust
  344.         @ may be set draggable / onclick individually (!)
  345.         */
  346.             stroke_color=get_color(infile,0); /* how nice: now the color comes first...*/
  347.             fill_color = stroke_color;
  348.             i=0;
  349.             while( ! done ){     /* get next item until EOL*/
  350.                 if(i > MAX_INT - 1){canvas_error("to many points in argument: repeat command multiple times to fit");}
  351.                 if(i%2 == 0 ){
  352.                     double_data[i] = get_real(infile,0); /* x */
  353.                 }
  354.                 else
  355.                 {
  356.                     double_data[i] = get_real(infile,1); /* y */
  357.                 }
  358.                 i++;
  359.             }
  360.             decimals = find_number_of_digits(precision);
  361.             for(c=0 ; c < i-1 ; c = c+2){
  362.                 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));\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);
  363.                 click_cnt++;
  364.             }
  365.             reset();
  366.             break;
  367.         case POINT:
  368.         /*
  369.         @ point x,y,color
  370.         @ draw a single point at (x;y) in color 'color'
  371.         @ use command 'linewidth int'  to adust size
  372.         @ may be set draggable / onclick
  373.         @ will not resize on zooming <br />(command 'circle x,y,r,color' will resize on zooming)
  374.         */
  375.             for(i=0;i<3;i++){
  376.                 switch(i){
  377.                     case 0: double_data[0] = get_real(infile,0);break; /* x */
  378.                     case 1: double_data[1] = get_real(infile,0);break; /* y */
  379.                     case 2: stroke_color = get_color(infile,1);/* name or hex color */
  380.                     decimals = find_number_of_digits(precision);
  381.                     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));\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);
  382.                     click_cnt++;break;
  383.                     default: break;
  384.                 }
  385.             }
  386.             reset();
  387.             break;
  388.         case POINTS:
  389.         /*
  390.         @ points color,x1,y1,x2,y2,...,x_n,y_n
  391.         @ draw multiple points at given coordinates in color 'color'
  392.         @ use command 'linewidth int'  to adust size
  393.         @ may be set draggable / onclick individually (!)
  394.         */
  395.             stroke_color=get_color(infile,0); /* how nice: now the color comes first...*/
  396.             fill_color = stroke_color;
  397.             i=0;
  398.             while( ! done ){     /* get next item until EOL*/
  399.                 if(i > MAX_INT - 1){canvas_error("to many points in argument: repeat command multiple times to fit");}
  400.                 if(i%2 == 0 ){
  401.                     double_data[i] = get_real(infile,0); /* x */
  402.                 }
  403.                 else
  404.                 {
  405.                     double_data[i] = get_real(infile,1); /* y */
  406.                 }
  407.                 i++;
  408.             }
  409.             decimals = find_number_of_digits(precision);           
  410.             for(c = 0 ; c < i-1 ; c = c+2){
  411.                 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));\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);
  412.                 click_cnt++;
  413.             }
  414.             reset();
  415.             break;
  416.         case SEGMENT:
  417.         /*
  418.         @ segment x1,y1,x2,y2,color
  419.         @ draw a line segment between points (x1:y1)--(x2:y2) in color 'color'
  420.         @ may be set draggable / onclick
  421.         */
  422.             for(i=0;i<5;i++) {
  423.                 switch(i){
  424.                     case 0: double_data[0]= get_real(infile,0);break; /* x1-values */
  425.                     case 1: double_data[1]= get_real(infile,0);break; /* y1-values */
  426.                     case 2: double_data[2]= get_real(infile,0);break; /* x2-values */
  427.                     case 3: double_data[3]= get_real(infile,0);break; /* y2-values */
  428.                     case 4: stroke_color=get_color(infile,1);/* name or hex color */
  429.                         decimals = find_number_of_digits(precision);
  430.                         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));\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);
  431.                         click_cnt++;reset();
  432.                         break;
  433.                     default: break;
  434.                 }
  435.             }
  436.             break;
  437.         case LINE:
  438.         /*
  439.         @ line x1,y1,x2,y2,color
  440.         @ draw a line through points (x1:y1)--(x2:y2) in color 'color'
  441.         @ or use command 'curve color,formula' to draw the line <br />(uses more points to draw the line; is however better draggable)
  442.         @ may be set draggable / onclick
  443.         */
  444.             for(i=0;i<5;i++){
  445.                 switch(i){
  446.                     case 0: double_data[10]= get_real(infile,0);break; /* x-values */
  447.                     case 1: double_data[11]= get_real(infile,0);break; /* y-values */
  448.                     case 2: double_data[12]= get_real(infile,0);break; /* x-values */
  449.                     case 3: double_data[13]= get_real(infile,0);break; /* y-values */
  450.                     case 4: stroke_color=get_color(infile,1);/* name or hex color */
  451.                     if( double_data[10] == double_data[12] ){ /* vertical line*/
  452.                         double_data[1] = xmin;
  453.                         double_data[3] = ymax;
  454.                         double_data[0] = double_data[10];
  455.                         double_data[2] = double_data[10];
  456.                     }
  457.                     else
  458.                     {
  459.                         if( double_data[11] == double_data[13] ){ /* horizontal line */
  460.                             double_data[1] = double_data[11];
  461.                             double_data[3] = double_data[11];
  462.                             double_data[0] = ymin;
  463.                             double_data[2] = xmax;
  464.                         }
  465.                         else
  466.                         {
  467.                         /* m */
  468.                         double_data[5] = (double_data[13] - double_data[11]) /(double_data[12] - double_data[10]);
  469.                         /* q */
  470.                         double_data[6] = double_data[11] - ((double_data[13] - double_data[11]) /(double_data[12] - double_data[10]))*double_data[10];
  471.                        
  472.                         /*xmin,m*xmin+q,xmax,m*xmax+q*/
  473.                        
  474.                             double_data[1] = (double_data[5])*(xmin)+(double_data[6]);
  475.                             double_data[3] = (double_data[5])*(xmax)+(double_data[6]);
  476.                             double_data[0] = xmin;
  477.                             double_data[2] = xmax;
  478.                         }
  479.                     }
  480.                     decimals = find_number_of_digits(precision);
  481.                     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));\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);
  482.                     click_cnt++;reset();
  483.                     break;
  484.                 }
  485.             }
  486.             break;
  487.         case HLINE:
  488.         /*
  489.         @ hline x,y,color
  490.         @ draw a horizontal line through point (x:y) in color 'color'
  491.         @ or use command 'curve color,formula' to draw the line <br />(uses more points to draw the line; is however better draggable)
  492.         @ may be set draggable / onclick
  493.         */
  494.             for(i=0;i<3;i++) {
  495.                 switch(i){
  496.                     case 0: double_data[0] = get_real(infile,0);break; /* x-values */
  497.                     case 1: double_data[1] = get_real(infile,0);break; /* y-values */
  498.                     case 2: stroke_color = get_color(infile,1);/* name or hex color */
  499.                     double_data[3] = double_data[1];
  500.                     decimals = find_number_of_digits(precision);
  501.                     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));\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);
  502.                     click_cnt++;reset();
  503.                     break;
  504.                 }
  505.             }
  506.             break;
  507.         case VLINE:
  508.         /*
  509.         @ vline x,y,color
  510.         @ draw a vertical line through point (x:y) in color 'color'
  511.         @ may be set draggable / onclick
  512.         */
  513.             for(i=0;i<3;i++) {
  514.                 switch(i){
  515.                     case 0: double_data[0] = get_real(infile,0);break; /* x-values */
  516.                     case 1: double_data[1] = get_real(infile,0);break; /* y-values */
  517.                     case 2: stroke_color=get_color(infile,1);/* name or hex color */
  518.                         double_data[2] = double_data[0];
  519.                         decimals = find_number_of_digits(precision);
  520.                         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));\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);
  521.                         click_cnt++;reset();
  522.                     break;
  523.                 }
  524.             }
  525.             break;
  526.         case SQUARE:
  527.         /*
  528.         @ square x,y,side,color
  529.         @ draw a square with left top corner (x:y) with side 'side' in color 'color'
  530.         @ use command 'fsquare x,y,side,color' for a filled square
  531.         @ use command/keyword  'filled' before command 'square x,y,side,color'
  532.         @ use command 'fillcolor color' before 'fsquare' to set the fill colour.
  533.         @ may be set draggable / onclick
  534.         */
  535.             for(i=0;i<5;i++){
  536.                 switch(i){
  537.                     case 0:double_data[0] = get_real(infile,0);break; /* x-values */
  538.                     case 1:double_data[1] = get_real(infile,0);break; /* y-values */
  539.                     case 2:double_data[2] = get_real(infile,0);
  540.                            double_data[3] = double_data[2];
  541.                            break; /* x-values */
  542.                     case 3:stroke_color = get_color(infile,1);/* name or hex color */
  543.                         decimals = find_number_of_digits(precision);
  544.                         fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,1,[%.*f,%.*f],[%.*f,%.*f],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s));\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,fill_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix);
  545.                         click_cnt++;reset();
  546.                         break;
  547.                 }
  548.             }
  549.             break;
  550.         case ROUNDRECT:
  551.         /*
  552.         @ roundrect x1,y1,x2,y2,radius,color
  553.         @ use command 'froundrect x1,y1,x2,y2,radius,color' for a filled rectangle
  554.         @ use command/keyword  'filled' before command 'roundrect x1,y1,x2,y2,radius,color'
  555.         @ use command 'fillcolor color' before 'froundrect' to set the fill colour.
  556.         @ may be set draggable / onclick
  557.         */
  558.             for(i=0;i<6;i++){
  559.                 switch(i){
  560.                     case 0:double_data[0] = get_real(infile,0);break; /* x-values */
  561.                     case 1:double_data[1] = get_real(infile,0);break; /* y-values */
  562.                     case 2:double_data[2] = get_real(infile,0);break; /* x-values */
  563.                     case 3:double_data[3] = get_real(infile,0);break; /* y-values */
  564.                     case 4:int_data[0] = (int) (get_real(infile,0));break; /* radius value in pixels */
  565.                     case 5:stroke_color = get_color(infile,1);/* name or hex color */
  566.                         decimals = find_number_of_digits(precision);
  567.                         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));\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);
  568.                         click_cnt++;reset();
  569.                     break;
  570.                 }
  571.             }
  572.             break;
  573.         case RECT:
  574.         /*
  575.         @ rect x1,y1,x2,y2,color
  576.         @ use command 'rect x1,y1,x2,y2,color' for a filled rectangle
  577.         @ use command/keyword  'filled' before command 'rect x1,y1,x2,y2,color'
  578.         @ use command 'fillcolor color' before 'frect' to set the fill colour.
  579.         @ may be set draggable / onclick
  580.         */
  581.             for(i=0;i<5;i++){
  582.                 switch(i){
  583.                     case 0:double_data[0] = get_real(infile,0);break; /* x-values */
  584.                     case 1:double_data[1] = get_real(infile,0);break; /* y-values */
  585.                     case 2:double_data[2] = get_real(infile,0);break; /* x-values */
  586.                     case 3:double_data[3] = get_real(infile,0);break; /* y-values */
  587.                     case 4:stroke_color = get_color(infile,1);/* name or hex color */
  588.                         decimals = find_number_of_digits(precision);
  589.                         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));\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);
  590.                         click_cnt++;reset();
  591.                         break;
  592.                 }
  593.             }
  594.             break;
  595.         case POLYLINE:
  596.         /*
  597.         @ polyline color,x1,y1,x2,y2...x_n,y_n
  598.         @ may be set draggable / onclick
  599.         */
  600.             stroke_color=get_color(infile,0); /* how nice: now the color comes first...*/
  601.             i=0;
  602.             c=0;
  603.             while( ! done ){     /* get next item until EOL*/
  604.                 if(i > MAX_INT - 1){canvas_error("to many points in argument: repeat command multiple times to fit");}
  605.                 for( c = 0 ; c < 2; c++){
  606.                     if(c == 0 ){
  607.                         double_data[i] = get_real(infile,0);
  608.                         i++;
  609.                     }
  610.                     else
  611.                     {
  612.                         double_data[i] = get_real(infile,1);
  613.                         i++;
  614.                     }
  615.                 }
  616.             }
  617.             /* draw path : not closed & not filled */
  618.             decimals = find_number_of_digits(precision);
  619.             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));\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);
  620.             click_cnt++;reset();
  621.             break;
  622.         case POLY:
  623.         /*
  624.         @ poly color,x1,y1,x2,y2...x_n,y_n
  625.         @ draw closed polygon
  626.         @ use command 'fpoly' to fill it, use command 'fillcolor color' to set the fill color
  627.         @ may be set draggable / onclick
  628.         */
  629.             stroke_color=get_color(infile,0); /* how nice: now the color comes first...*/
  630.             i=0;
  631.             c=0;
  632.             while( ! done ){     /* get next item until EOL*/
  633.                 if(i > MAX_INT - 1){canvas_error("to many points in argument: repeat command multiple times to fit");}
  634.                 for( c = 0 ; c < 2; c++){
  635.                     if(c == 0 ){
  636.                         double_data[i] = get_real(infile,0);
  637.                         i++;
  638.                     }
  639.                     else
  640.                     {
  641.                         double_data[i] = get_real(infile,1);
  642.                         i++;
  643.                     }
  644.                 }
  645.             }
  646.             /* draw path :  closed & optional filled */
  647.                 decimals = find_number_of_digits(precision);
  648.                 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));\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);
  649.                 click_cnt++;reset();
  650.             break;
  651.         case ARC:
  652.         /*
  653.          @ arc xc,yc,width,height,start_angle,end_angle,color
  654.          @ can not be set "onclick" or "drag xy"
  655.          @ attention: width == height == radius in pixels)
  656.         */
  657.             for(i=0;i<7;i++){
  658.                 switch(i){
  659.                     case 0:double_data[0] = get_real(infile,0);break; /* x-values */
  660.                     case 1:double_data[1] = get_real(infile,0);break; /* y-values */
  661.                     case 2:int_data[0] = (int)(get_real(infile,0));break; /* width in pixels ! */
  662.                     case 3:int_data[1] = (int)(get_real(infile,0));break; /* height in pixels ! */
  663.                     case 4:double_data[2] = get_real(infile,0);break; /* start angle in degrees */
  664.                     case 5:double_data[3] = get_real(infile,0);break; /* end angle in degrees */
  665.                     case 6:stroke_color = get_color(infile,1);/* name or hex color */
  666.                     /* in Shape library:
  667.                         x[0] = x[1] = xc
  668.                         y[0] = y[1] = yc
  669.                         w[0] = w[1] = radius = width = height  
  670.                         h[0] = start_angle ; h[1] = end_engle
  671.                     */
  672.                         decimals = find_number_of_digits(precision);
  673.                         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));\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);
  674.                         reset();
  675.                     break;
  676.                 }
  677.             }
  678.             break;
  679.         case ELLIPSE:
  680.         /*
  681.         @ ellipse xc,yc,radius_x,radius_y,color
  682.         @ a ellipse with center xc/yc in x/y-range
  683.         @ radius_x and radius_y are in pixels
  684.         @ may be set draggable / onclick
  685.         @ will shrink / expand on zoom out / zoom in
  686.         */
  687.             for(i=0;i<5;i++){
  688.                 switch(i){
  689.                     case 0:double_data[0] = get_real(infile,0);break; /* x-values */
  690.                     case 1:double_data[1] = get_real(infile,0);break; /* y-values */
  691.                     case 2:double_data[2] = get_real(infile,0);break; /* rx -> px  */
  692.                     case 3:double_data[3] = get_real(infile,0);break; /* ry -> px  */
  693.                     case 4:stroke_color = get_color(infile,1);/* name or hex color */
  694.                         decimals = find_number_of_digits(precision);
  695.                         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));\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);
  696.                         click_cnt++;reset();
  697.                     break;
  698.                 }
  699.             }
  700.             break;
  701.         case DASHTYPE:
  702.         /*
  703.         @ dashtype int ,int
  704.         @ When dashed is set, the objects will be drawn with this dashtyp
  705.         @ default value "dashtype 2,2"
  706.         */
  707.             for(i=0;i<2;i++){
  708.                 switch(i){
  709.                     case 0 : dashtype[0] = (int) line_width*( get_real(infile,0)) ; break;
  710.                     case 1 : dashtype[1] = (int) line_width*( get_real(infile,1)) ; break;
  711.                 }
  712.             }
  713.         break;
  714.         case CIRCLE:
  715.         /*
  716.         @ circle xc,yc,width (2*r in pixels),color
  717.         @ use command 'fcircle xc,yc,d,color' or command 'filled' for a filled disk
  718.         @ use command 'fillcolor color' to set the fillcolor
  719.         @ may be set draggable / onclick
  720.         @ will shrink / expand on zoom out / zoom in
  721.         */
  722.             for(i=0;i<4;i++){
  723.                 switch(i){
  724.                     case 0: double_data[0] = get_real(infile,0);break; /* x */
  725.                     case 1: double_data[1] = get_real(infile,0);break; /* y */
  726.                     case 2: double_data[2] = px2x((get_real(infile,0))/2) - px2x(0);break; /* radius in 'dx' xrange*/
  727.                     case 3: stroke_color = get_color(infile,1);/* name or hex color */
  728.                         decimals = find_number_of_digits(precision);
  729.                         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));\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);
  730.                         click_cnt++;reset();
  731.                     break;
  732.                 }
  733.             }
  734.             break;
  735.         case RAYS:
  736.         /*
  737.          @ rays color,xc,yc,x1,y1,x2,y2,x3,y3...x_n,y_n
  738.          @ draw rays in color 'color' and center (xc:yc)
  739.          @ may be set draggable or onclick (every individual ray)
  740.         */
  741.             stroke_color=get_color(infile,0);
  742.             fill_color = stroke_color;
  743.             double_data[0] = get_real(infile,0);/* xc */
  744.             double_data[1] = get_real(infile,0);/* yc */
  745.             i=2;
  746.             while( ! done ){     /* get next item until EOL*/
  747.                 if(i > MAX_INT - 1){canvas_error("in command rays to many points / rays in argument: repeat command multiple times to fit");}
  748.                 if(i%2 == 0 ){
  749.                     double_data[i] = get_real(infile,0); /* x */
  750.                 }
  751.                 else
  752.                 {
  753.                     double_data[i] = get_real(infile,1); /* y */
  754.                 }
  755.             fprintf(js_include_file,"/* double_data[%d] = %f */\n",i,double_data[i]);
  756.                 i++;
  757.             }
  758.            
  759.             if( i%2 != 0 ){canvas_error("in command rays: unpaired x or y value");}
  760.             decimals = find_number_of_digits(precision);           
  761.             for(c=2; c<i;c = c+2){
  762.                 click_cnt++;
  763.                 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));\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);
  764.             }
  765.             reset();
  766.             break;
  767.         case ARROW:
  768.         /*
  769.         @ arrow x1,y1,x2,y2,h,color
  770.         @ draw a single headed arrow/vector from (x1:y1) to (x2:y2)<br />with arrowhead size h in px and in color 'color'
  771.         @ use command 'linewidth int' to adjust thickness of the arrow
  772.         @ may be set draggable / onclick
  773.         */
  774.             for(i=0;i<6;i++){
  775.                 switch(i){
  776.                     case 0: double_data[0] = get_real(infile,0);break; /* x */
  777.                     case 1: double_data[1] = get_real(infile,0);break; /* y */
  778.                     case 2: double_data[2] = get_real(infile,0);break; /* x */
  779.                     case 3: double_data[3] = get_real(infile,0);break; /* y */
  780.                     case 4: arrow_head = (int) get_real(infile,0);break;/* h */
  781.                     case 5: stroke_color = get_color(infile,1);/* name or hex color */
  782.                         decimals = find_number_of_digits(precision);
  783.                         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));\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);
  784.                         click_cnt++;
  785.                         reset();
  786.                         break;
  787.                 }
  788.             }
  789.             break;
  790.         case ARROW2:
  791.         /*
  792.         @ arrow2 x1,y1,x2,y2,h,color
  793.         @ draw a double headed arrow/vector from (x1:y1) to (x2:y2)<br />with arrowhead size h in px and  in color 'color'
  794.         @ use command 'arrowhead int' to adjust the arrow head size
  795.         @ use command 'linewidth int' to adjust thickness of the arrow
  796.         @ may be set draggable / onclick
  797.         */
  798.             for(i=0;i<6;i++){
  799.                 switch(i){
  800.                     case 0: double_data[0] = get_real(infile,0);break; /* x */
  801.                     case 1: double_data[1] = get_real(infile,0);break; /* y */
  802.                     case 2: double_data[2] = get_real(infile,0);break; /* x */
  803.                     case 3: double_data[3] = get_real(infile,0);break; /* y */
  804.                     case 4: arrow_head = (int) get_real(infile,0);break;/* h */
  805.                     case 5: stroke_color = get_color(infile,1);/* name or hex color */
  806.                         decimals = find_number_of_digits(precision);
  807.                         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));\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);
  808.                         click_cnt++;reset();
  809.                         break;
  810.                 }
  811.             }
  812.             break;
  813.         case PARALLEL:
  814.         /*
  815.          @ parallel x1,y1,x2,y2,dx,dy,n,[colorname or #hexcolor]
  816.          @ can not be set "onclick" or "drag xy"
  817.         */
  818.             for( i = 0;i < 8; i++ ){
  819.                 switch(i){
  820.                     case 0: double_data[0] = get_real(infile,0);break; /* x1-values  -> x-pixels*/
  821.                     case 1: double_data[1] = get_real(infile,0);break; /* y1-values  -> y-pixels*/
  822.                     case 2: double_data[2] = get_real(infile,0);break; /* x2-values  -> x-pixels*/
  823.                     case 3: double_data[3] = get_real(infile,0);break; /* y2-values  -> y-pixels*/
  824.                     case 4: double_data[4] = xmin + get_real(infile,0);break; /* xv -> x-pixels */
  825.                     case 5: double_data[5] = ymax + get_real(infile,0);break; /* yv -> y-pixels */
  826.                     case 6: int_data[0] = (int) (get_real(infile,0));break; /* n  */
  827.                     case 7: stroke_color=get_color(infile,1);/* name or hex color */
  828.                     decimals = find_number_of_digits(precision);
  829.                     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));\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);
  830.                     click_cnt++;reset();
  831.                     break;
  832.                     default: break;
  833.                 }
  834.             }
  835.             break;
  836.         case TRIANGLE:
  837.         /*
  838.          @triangle x1,y1,x2,y2,x3,y3,color
  839.          @may be set draggable / onclic
  840.         */
  841.             for(i=0;i<7;i++){
  842.                 switch(i){
  843.                     case 0: double_data[0] = get_real(infile,0);break; /* x */
  844.                     case 1: double_data[1] = get_real(infile,0);break; /* y */
  845.                     case 2: double_data[2] = get_real(infile,0);break; /* x */
  846.                     case 3: double_data[3] = get_real(infile,0);break; /* y */
  847.                     case 4: double_data[4] = get_real(infile,0);break; /* x */
  848.                     case 5: double_data[5] = get_real(infile,0);break; /* y */
  849.                     case 6: stroke_color = get_color(infile,1);/* name or hex color */
  850.                         decimals = find_number_of_digits(precision);
  851.                         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));\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);
  852.                         click_cnt++;reset();
  853.                         break;
  854.                     default: break;
  855.                 }
  856.             }
  857.             break;
  858.         case LATTICE:
  859.         /*
  860.          @lattice x0,y0,xv1,yv1,xv2,yv2,n1,n2,color
  861.          @can not be set "onclick" or "drag xy"
  862.         */
  863.             if( js_function[DRAW_LATTICE] != 1 ){ js_function[DRAW_LATTICE] = 1;}
  864.             for( i = 0; i<9; i++){
  865.                 switch(i){
  866.                     case 0: int_data[0] = x2px(get_real(infile,0));break; /* x0-values  -> x-pixels*/
  867.                     case 1: int_data[1] = y2px(get_real(infile,0));break; /* y0-values  -> y-pixels*/
  868.                     case 2: int_data[2] = (int) (get_real(infile,0));break; /* x1-values  -> x-pixels*/
  869.                     case 3: int_data[3] = (int) (get_real(infile,0));break; /* y1-values  -> y-pixels*/
  870.                     case 4: int_data[4] = (int) (get_real(infile,0));break; /* x2-values  -> x-pixels*/
  871.                     case 5: int_data[5] = (int) (get_real(infile,0));break; /* y2-values  -> y-pixels*/
  872.                     case 6: int_data[6] = (int) (get_real(infile,0));break; /* n1-values */
  873.                     case 7: int_data[7] = (int) (get_real(infile,0));break; /* n2-values */
  874.                     case 8: stroke_color=get_color(infile,1);
  875.                         decimals = find_number_of_digits(precision);
  876.                         string_length = snprintf(NULL,0,"draw_lattice(%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,\"%s\",%.2f,\"%s\",%.2f,%d,%.2f,%d,[%d,%d]);",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_translate,translate_x,translate_y);
  877.                         check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  878.                         snprintf(tmp_buffer,string_length,"draw_lattice(%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,\"%s\",%.2f,\"%s\",%.2f,%d,%.2f,%d,[%d,%d]);",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_translate,translate_x,translate_y);
  879.                         add_to_buffer(tmp_buffer);
  880.                     break;
  881.                     default:break;
  882.                 }
  883.             }
  884.             reset();
  885.             break;
  886.         case SNAPTOGRID:
  887.         /*
  888.          @ snaptogrid
  889.          @ keyword (no arguments rewquired) needs to be defined before command 'userdraw' and after command 'grid'
  890.          @ in case of userdraw the drawn points will snap to xmajor / ymajor grid
  891.          @ 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 />
  892.         */
  893.         fprintf(js_include_file,"\nx_use_snap_to_grid = 1;y_use_snap_to_grid = 1;var snap_x = 1;var snap_y = 1;function snap_to_x(x){return x2px(snap_x*(Math.round((px2x(x))/snap_x)));};function snap_to_y(y){return y2px(snap_y*(Math.round((px2y(y))/snap_y)));};\n");
  894.         break;
  895.         case XSNAPTOGRID:
  896.         /*
  897.          @ xsnaptogrid
  898.          @ keyword (no arguments rewquired) needs to be defined before command 'userdraw' and after command 'grid'
  899.          @ in case of userdraw the drawn points will snap to xmajor grid
  900.          @ if xminor / yminor 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 />
  901.         */
  902.         fprintf(js_include_file,"\nx_use_snap_to_grid = 1;var snap_x = 1;if (typeof snap_y === 'undefined') { var snap_y = 1;};var snap_y = 1;function snap_to_x(x){return x2px(snap_x*(Math.round((px2x(x))/snap_x)));};\n");
  903.         break;
  904.         case YSNAPTOGRID:
  905.         /*
  906.          @ ysnaptogrid
  907.          @ keyword (no arguments rewquired) needs to be defined before command 'userdraw' and after command 'grid'
  908.          @ in case of userdraw the drawn points will snap to ymajor grid
  909.          @ if xminor / 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 />
  910.         */
  911.         fprintf(js_include_file,"\ny_use_snap_to_grid = 1;if (typeof snap_x === 'undefined') { var snap_x = 1;};var snap_y = 1;\nfunction snap_to_y(y){return y2px(snap_y*(Math.round((px2y(y))/snap_y)));};\n");
  912.         break;
  913.         case USERTEXTAREA_XY:
  914.         /*
  915.         @ usertextarea_xy
  916.         @ keyword
  917.         @ to be used in combination with command "userdraw object_type,color" wherein object_type is only segment / polyline for the time being...
  918.         @ if set two textareas are added to the document<br />(one for x-values , one for y-values)
  919.         @ the student may use this as correction for (x:y) on a drawing (or to draw without mouse, using just the coordinates)
  920.         @ can not be combined with command "intooltip tiptext" <br />note: the 'tooltip div element' is used for placing inputfields
  921.         @ user drawings will not zoom on zooming (or pan on panning)
  922.         */
  923.             if(use_tooltip == TRUE){canvas_error("usertextarea_xy can not be combined with intooltip command");}
  924.             if( use_input_xy == 1 ){canvas_error("usertextarea_xy can not be combined with userinput_xy command");}
  925.             fprintf(js_include_file,"function safe_eval(exp){if(exp.indexOf('^') != -1){exp = exp.replace(/\\s*(.*)\\^\\s*(.*)/ig, \"pow($1, $2)\");};var reg = /(?:[a-z$_][a-z0-9$_]*)|(?:[;={}\\[\\]\"'!&<>^\\\\?:])/ig;var valid = true;exp = exp.replace(reg,function($0){if (Math.hasOwnProperty($0)){return \"Math.\"+$0;}else{valid = false;};});if (!valid){alert(\"hmmm \"+exp+\" ?\"); exp = null;}else{try { exp = eval(exp); } catch (e) {alert(\"Invalid arithmetic expression\"); exp = null;};};return exp;};");
  926.             use_input_xy = 2;
  927.             break;
  928.         case USERINPUT_XY:
  929.         /*
  930.         @ userinput_xy
  931.         @ keyword
  932.         @ to be used in combination with command "userdraw object_type,color"
  933.         @ 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)
  934.         @ the student may use this as correction for (x:y) on a drawing (or to draw without mouse, using just the coordinates)
  935.         @ 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.
  936.         @ can not be combined with command "intooltip tiptext" <br />note: the 'tooltip div element' is used for placing inputfields
  937.         @ user drawings will not zoom on zooming (or pan on panning)
  938.         */
  939.             if(use_tooltip == TRUE){canvas_error("userinput_xy can not be combined with intooltip command");}
  940.             /* add simple eval check to avoid code injection with unprotected eval(string) */
  941.             fprintf(js_include_file,"function safe_eval(exp){if(exp.indexOf('^') != -1){exp = exp.replace(/\\s*(.*)\\^\\s*(.*)/ig, \"pow($1, $2)\");};var reg = /(?:[a-z$_][a-z0-9$_]*)|(?:[;={}\\[\\]\"'!&<>^\\\\?:])/ig;var valid = true;exp = exp.replace(reg,function($0){if (Math.hasOwnProperty($0)){return \"Math.\"+$0;}else{valid = false;};});if (!valid){alert(\"hmmm \"+exp+\" ?\"); exp = null;}else{try { exp = eval(exp); } catch (e) {alert(\"Invalid arithmetic expression\"); exp = null;};};return exp;};");
  942.             use_input_xy = 1;
  943.             break;
  944.         case USERDRAW:
  945.         /*
  946.         @ userdraw object_type,color
  947.         @ implemented object_type: <ul><li>point</li><li>points</li><li>crosshair</li><li>crosshairs</li><li>line</li><li>lines</li><li>segment</li><li>segments</li><li>polyline</li><li>circle</li><li>circles</li><li>arrow</li><li>arrows</li><li>triangle</li><li>polygon</li><li>poly[3-9]</li><li>rect</li><li>roundrect</li><li>rects</li><li>roundrects</li><li>freehandline</li><li>freehandlines</li><li>path</li><li>paths</li><li>text</li></ul>
  948.         @ note: mouselisteners are only active if "$status != done " (eg only drawing in an active/non-finished exercise) <br /> to overrule use command/keyword "status" (no arguments required)
  949.         @ 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
  950.         @ note: object_type polygone: Will be finished (the object is closed) when clicked on the first point of the polygone again.
  951.         @ 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)
  952.         @ use command "filled", "opacity int,int"  and "fillcolor color" to trigger coloured filling of fillable objects
  953.         @ use command "dashed" and/or "dashtype int,int" to trigger dashing
  954.         @ use command "replyformat int" to control / adjust output formatting of javascript function read_canvas();
  955.         @ may be combined with onclick or drag xy  of other components of flyscript objects (although not very usefull...)
  956.         @ may be combined with keyword 'userinput_xy' or
  957.         @ 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.!
  958.         */
  959.             if( use_userdraw == TRUE ){ /* only one object type may be drawn*/
  960.                 canvas_error("Only one userdraw primitive may be used: read documentation !!");
  961.             }
  962.             use_userdraw = TRUE;
  963.             fprintf(js_include_file,"<!-- begin userdraw mouse events -->\nvar userdraw_x = new Array();var userdraw_y = new Array();var 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]);
  964.             draw_type = get_string_argument(infile,0);
  965.             stroke_color = get_color(infile,1);
  966.             if( strcmp(draw_type,"point") == 0 ){
  967.                 if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
  968.                 if(reply_format < 1 ){reply_format = 8;}
  969.                 /* 7 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n in x/y-range */
  970.                 if(use_input_xy == 1){
  971.                     add_input_circle(js_include_file,1,1);
  972.                     add_input_xy(js_include_file,canvas_root_id);
  973.                 }
  974.                 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);
  975.             }
  976.             else
  977.             if( strcmp(draw_type,"points") == 0 ){
  978.                 if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
  979.                 if(reply_format < 1 ){reply_format = 8;}
  980.                 /* 7 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n in x/y-range */
  981.                 if(use_input_xy == 1){
  982.                     add_input_circle(js_include_file,1,2);
  983.                     add_input_xy(js_include_file,canvas_root_id);
  984.                 }
  985.                 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);
  986.             }
  987.             else
  988.             if( strcmp(draw_type,"segment") == 0 ){
  989.                 if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
  990.                 if( js_function[DRAW_SEGMENTS] != 1 ){ js_function[DRAW_SEGMENTS] = 1;}
  991.                 if(reply_format < 1){reply_format = 11;}
  992.                 if(use_input_xy == 1){
  993.                     add_input_segment(js_include_file,1);
  994.                     add_input_x1y1x2y2(js_include_file,canvas_root_id);
  995.                 }
  996.                 add_js_segments(js_include_file,1,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
  997.             }
  998.             else
  999.             if( strcmp(draw_type,"polyline") == 0 ){
  1000.                 if( js_function[DRAW_POLYLINE] != 1 ){ js_function[DRAW_POLYLINE] = 1;}
  1001.                 if(reply_format < 1){reply_format = 23;}
  1002.                 if( use_input_xy == 1 ){
  1003.                     add_input_polyline(js_include_file);
  1004.                     add_input_xy(js_include_file,canvas_root_id);
  1005.                 }
  1006.                 add_js_polyline(js_include_file,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
  1007.             }
  1008.             else
  1009.             if( strcmp(draw_type,"segments") == 0 ){
  1010.                 if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
  1011.                 if( js_function[DRAW_SEGMENTS] != 1 ){ js_function[DRAW_SEGMENTS] = 1;}
  1012.                 if(reply_format < 1){reply_format = 11;}
  1013.                 if(use_input_xy == 1){
  1014.                     add_input_segment(js_include_file,2);
  1015.                     add_input_x1y1x2y2(js_include_file,canvas_root_id);
  1016.                 }
  1017.                 add_js_segments(js_include_file,2,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
  1018.             }
  1019.             else
  1020.             if( strcmp(draw_type,"circle") == 0 ){
  1021.                 if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
  1022.                 if(reply_format < 1){reply_format = 10;}
  1023.                 /* 9 = x1:y1:r1,x2:y2:r2,x3:y3:r3,x4:y4:r3...x_n:y_n:r_n in x/y-range */
  1024.                 if(use_input_xy == 1){
  1025.                     add_input_circle(js_include_file,2,1);
  1026.                     add_input_xyr(js_include_file,canvas_root_id);
  1027.                 }
  1028.                 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]);
  1029.             }
  1030.             else
  1031.             if( strcmp(draw_type,"circles") == 0 ){
  1032.                 if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
  1033.                 if(reply_format < 1){reply_format = 10;}
  1034.                 /* 9 = x1:y1:r1,x2:y2:r2,x3:y3:r3,x4:y4:r3...x_n:y_n:r_n in x/y-range */
  1035.                 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]);
  1036.                 if(use_input_xy == 1){
  1037.                     add_input_circle(js_include_file,2,2);
  1038.                     add_input_xyr(js_include_file,canvas_root_id);
  1039.                 }
  1040.             }
  1041.             else
  1042.             if(strcmp(draw_type,"crosshair") == 0 ){
  1043.                 if( js_function[DRAW_CROSSHAIRS] != 1 ){ js_function[DRAW_CROSSHAIRS] = 1;}
  1044.                 if(reply_format < 1){reply_format = 8;}
  1045.                 /* 7 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n in x/y-range */
  1046.                 add_js_crosshairs(js_include_file,1,draw_type,line_width,crosshair_size ,stroke_color,stroke_opacity);
  1047.                 if(use_input_xy == 1){
  1048.                     add_input_crosshair(js_include_file,1);
  1049.                     add_input_xy(js_include_file,canvas_root_id);
  1050.                 }
  1051.             }
  1052.             else
  1053.             if(strcmp(draw_type,"crosshairs") == 0 ){
  1054.                 if( js_function[DRAW_CROSSHAIRS] != 1 ){ js_function[DRAW_CROSSHAIRS] = 1;}
  1055.                 if(reply_format < 1){reply_format = 8;}
  1056.                 /* 7 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n in x/y-range */
  1057.                 add_js_crosshairs(js_include_file,2,draw_type,line_width,crosshair_size ,stroke_color,stroke_opacity);
  1058.                 if(use_input_xy == 1){
  1059.                     add_input_crosshair(js_include_file,2);
  1060.                     add_input_xy(js_include_file,canvas_root_id);
  1061.                 }
  1062.             }
  1063.             else
  1064.             if(strcmp(draw_type,"freehandline") == 0 ){
  1065.                 if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
  1066.                 if(reply_format < 1){reply_format = 6;}
  1067.                 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]);  
  1068.                 if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
  1069.             }
  1070.             else
  1071.             if(strcmp(draw_type,"freehandlines") == 0 ){
  1072.                 if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
  1073.                 if(reply_format < 1){reply_format = 6;}
  1074.                 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]);  
  1075.                 if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
  1076.             }
  1077.             else
  1078.             if(strcmp(draw_type,"path") == 0 ){
  1079.                 if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
  1080.                 if(reply_format < 1){reply_format = 6;}
  1081.                 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]);  
  1082.                 if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
  1083.             }
  1084.             else
  1085.             if(strcmp(draw_type,"paths") == 0 ){
  1086.                 if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
  1087.                 if(reply_format < 1){reply_format = 6;}
  1088.                 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]);  
  1089.                 if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
  1090.             }
  1091.             else
  1092.             if(strcmp(draw_type,"arrows") == 0 ){
  1093.                 if( js_function[DRAW_ARROWS] != 1 ){ js_function[DRAW_ARROWS] = 1;}
  1094.                 if(reply_format < 1){reply_format = 11;}
  1095.                 add_js_arrows(js_include_file,2,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1],arrow_head);
  1096.                 if(use_input_xy == 1){
  1097.                     add_input_arrow(js_include_file,2);
  1098.                     add_input_x1y1x2y2(js_include_file,canvas_root_id);
  1099.                 }
  1100.             }
  1101.             else
  1102.             if(strcmp(draw_type,"arrow") == 0 ){
  1103.                 if( js_function[DRAW_ARROWS] != 1 ){ js_function[DRAW_ARROWS] = 1;}
  1104.                 if(reply_format < 1){reply_format = 11;}
  1105.                 add_js_arrows(js_include_file,1,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1],arrow_head);
  1106.                 if(use_input_xy == 1){
  1107.                     add_input_arrow(js_include_file,1);
  1108.                     add_input_x1y1x2y2(js_include_file,canvas_root_id);
  1109.                 }
  1110.             }
  1111.             else
  1112.             if(strcmp(draw_type,"polygon") == 0){
  1113.                 if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
  1114.                 if(reply_format < 1){reply_format = 2;}
  1115.                 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]);
  1116.                 if( use_input_xy == 2 ){
  1117.                   add_textarea_polygon(js_include_file);
  1118.                   add_textarea_xy(js_include_file,canvas_root_id);
  1119.                 }
  1120.             }
  1121.             else
  1122.             if(strncmp(draw_type,"poly",4) == 0){
  1123.                 if(strlen(draw_type) < 5){canvas_error("use command \"userdraw poly[3-9],color\" eg userdraw poly6,blue");}
  1124.                 if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
  1125.                 if(reply_format < 1){reply_format = 2;}
  1126.                 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]);
  1127.                 if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
  1128.             }
  1129.             else
  1130.             if(strcmp(draw_type,"triangle") == 0){
  1131.                 if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
  1132.                 if(reply_format < 1){reply_format = 2;}
  1133.                 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]);
  1134.                 if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
  1135.             }
  1136.             else
  1137.             if( strcmp(draw_type,"line") == 0 ){
  1138.                 if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
  1139.                 if( js_function[DRAW_LINES] != 1 ){ js_function[DRAW_LINES] = 1;}
  1140.                 if(reply_format < 1){reply_format = 11;}
  1141.                 add_js_lines(js_include_file,1,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
  1142.                 if( use_input_xy == 1 ){
  1143.                     add_input_line(js_include_file,1);
  1144.                     add_input_x1y1x2y2(js_include_file,canvas_root_id);
  1145.                 }
  1146.             }
  1147.             else
  1148.             if( strcmp(draw_type,"lines") == 0 ){
  1149.                 if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
  1150.                 if( js_function[DRAW_LINES] != 1 ){ js_function[DRAW_LINES] = 1;}
  1151.                 if(reply_format < 1){reply_format = 11;}
  1152.                 add_js_lines(js_include_file,2,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
  1153.                 if( use_input_xy == 1 ){
  1154.                     add_input_line(js_include_file,2);
  1155.                     add_input_x1y1x2y2(js_include_file,canvas_root_id);
  1156.                 }
  1157.             }
  1158.             else
  1159.             if( strcmp(draw_type,"rects") == 0){
  1160.                 if( js_function[DRAW_RECTS] != 1 ){ js_function[DRAW_RECTS] = 1;}
  1161.                 if(reply_format < 1){reply_format = 2;}
  1162.                 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]);
  1163.                 if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
  1164.             }
  1165.             else
  1166.             if( strcmp(draw_type,"roundrects") == 0){
  1167.                 if( js_function[DRAW_ROUNDRECTS] != 1 ){ js_function[DRAW_ROUNDRECTS] = 1;}
  1168.                 if(reply_format < 1){reply_format = 2;}
  1169.                 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]);
  1170.                 if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
  1171.             }
  1172.             else
  1173.             if( strcmp(draw_type,"rect") == 0){
  1174.                 if( js_function[DRAW_RECTS] != 1 ){ js_function[DRAW_RECTS] = 1;}
  1175.                 if(reply_format < 1){reply_format = 2;}
  1176.                 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]);
  1177.                 if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
  1178.             }
  1179.             else
  1180.             if( strcmp(draw_type,"roundrect") == 0){
  1181.                 if( js_function[DRAW_ROUNDRECTS] != 1 ){ js_function[DRAW_ROUNDRECTS] = 1;}
  1182.                 if(reply_format < 1){reply_format = 2;}
  1183.                 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]);
  1184.                 if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
  1185.             }
  1186.             else
  1187.             if( strcmp(draw_type,"text") == 0){
  1188.                 if( js_function[DRAW_TEXTS] != 1 ){ js_function[DRAW_TEXTS] = 1;}      
  1189.                 if(reply_format < 1){reply_format = 17;}
  1190.                 add_js_text(js_include_file,canvas_root_id,font_size,font_family,font_color,stroke_opacity,use_rotate,angle,use_translate,translate_x,translate_y);
  1191.                 if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
  1192.             }
  1193.             else
  1194.             {
  1195.                 canvas_error("unknown drawtype or typo? ");
  1196.             }
  1197.             reset();
  1198.         break;
  1199.         case PLOTSTEPS:
  1200.             /*
  1201.              @ plotsteps a_number
  1202.              @ default 150
  1203.              @ use with care !
  1204.             */
  1205.             plot_steps = (int) (get_real(infile,1));
  1206.             break;
  1207.         case FONTSIZE:
  1208.         /*
  1209.          @fontsize font_size
  1210.          @default value 12
  1211.         */
  1212.             font_size = (int) (get_real(infile,1));
  1213.             break;
  1214.         case FONTCOLOR:
  1215.         /*
  1216.          @fontcolor color
  1217.          @color: hexcolor or colorname
  1218.          @default: black
  1219.          @example usage: x/y-axis text
  1220.         */
  1221.             font_color = get_color(infile,1);
  1222.             break;
  1223.         case ANIMATE:
  1224.         /*
  1225.          @animate type
  1226.          @type may be "point" (nothing else , yet...)
  1227.          @the point is a filled rectangle ; adjust colour with command 'fillcolor colorname/hexnumber'
  1228.          @will animate a point on the next plot/curve command
  1229.          @the curve will not be draw
  1230.          @moves repeatedly from xmin to xmax
  1231.         */
  1232.             if( strstr(get_string(infile,1),"point") != 0 ){animation_type = 15;}else{canvas_error("the only animation type (for now) is \"point\"...");}
  1233.             break;
  1234.         case LEVELCURVE:
  1235.         /*
  1236.         @levelcurve color,expression in x/y,l1,l2,...
  1237.         @draws very primitive level curves for expression, with levels l1,l2,l3,...,l_n
  1238.         @the quality is <b>not to be compared</b> with the Flydraw levelcurve. <br />(choose flydraw if you want quality...)
  1239.         @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
  1240.         @note : the arrays for holding the javascript data are limited in size
  1241.         @note : reduce image size if javascript data arrays get overloaded<br />(command 'plotsteps int' will not control the data size of the plot...)
  1242.         */
  1243.             fill_color = get_color(infile,0);
  1244.             char *fun1 = get_string_argument(infile,0);
  1245.             if( strlen(fun1) == 0 ){canvas_error("function is NOT OK !");}
  1246.             i = 0;
  1247.             done = FALSE;
  1248.             while( !done ){
  1249.              double_data[i] = get_real(infile,1);
  1250.              i++;
  1251.             }
  1252.             for(c = 0 ; c < i; c++){
  1253.              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));\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);
  1254.              click_cnt++;
  1255.             }
  1256.             reset();
  1257.             break;
  1258.         case CURVE:
  1259.         /*
  1260.          @curve color,formula(x)
  1261.          @plot color,formula(x)
  1262.          @use command trange before command curve / plot  (trange -pi,pi)<br />curve color,formula1(t),formula2(t)
  1263.          @use command "precision" to increase the number of digits of the plotted points
  1264.          @use command "plotsteps" to increase / decrease the amount of plotted points (default 150)
  1265.          @may be set draggable / onclick
  1266.         */
  1267.             if( use_parametric == TRUE ){ /* parametric color,fun1(t),fun2(t)*/
  1268.                 use_parametric = FALSE;
  1269.                 stroke_color = get_color(infile,0);
  1270.                 char *fun1 = get_string_argument(infile,0);
  1271.                 char *fun2 = get_string_argument(infile,1);
  1272.                 if( strlen(fun1) == 0 || strlen(fun2) == 0 ){canvas_error("parametric functions are NOT OK !");}
  1273.                 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));\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);
  1274.                 click_cnt++;
  1275.             }
  1276.             else
  1277.             {
  1278.                 stroke_color = get_color(infile,0);
  1279.                 char *fun1 = get_string_argument(infile,1);
  1280.                 if( strlen(fun1) == 0 ){canvas_error("function is NOT OK !");} 
  1281.                 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));\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);
  1282.                 click_cnt++;
  1283.             }
  1284.             animation_type = 9;/* reset to curve plotting without animation */
  1285.             reset();
  1286.             break;
  1287.         case FLY_TEXT:
  1288.         /*
  1289.         @ text fontcolor,x,y,font,text_string
  1290.         @ font may be described by keywords : giant,huge,normal,small,tiny
  1291.         @ use command 'fontsize' to increase base fontsize for the keywords
  1292.         @ may be set "onclick" or "drag xy"
  1293.         @ backwards compatible with flydraw
  1294.         @ unicode supported: text red,0,0,huge,\\u2232
  1295.         @ use command 'string' and 'fontfamily' for a more fine grained control over html5 canvas text element
  1296.         @ 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 rested 'fontfamily' to something lke 'fontfamily Ariel' before the old flydraw commands.
  1297.         */
  1298.             for(i = 0; i < 5 ;i++){
  1299.                 switch(i){
  1300.                     case 0: stroke_color = get_color(infile,0);break;/* font_color == stroke_color name or hex color */
  1301.                     case 1: double_data[0] = get_real(infile,0);break; /* x */
  1302.                     case 2: double_data[1] = get_real(infile,0);break; /* y */
  1303.                     case 3: fly_font = get_string_argument(infile,0);
  1304.                             if(strcmp(fly_font,"giant") == 0){
  1305.                                 font_size = (int)(font_size + 24);
  1306.                             }
  1307.                             else
  1308.                             {
  1309.                                 if(strcmp(fly_font,"huge") == 0){
  1310.                                     font_size = (int)(font_size + 14);
  1311.                                 }
  1312.                                 else
  1313.                                 {
  1314.                                     if(strcmp(fly_font,"large") == 0){
  1315.                                         font_size = (int)(font_size + 6);
  1316.                                         }
  1317.                                         else
  1318.                                         {
  1319.                                             if(strcmp(fly_font,"small") == 0){
  1320.                                                 font_size = (int)(font_size - 4);
  1321.                                                 if(font_size<0){font_size = 8;}
  1322.                                         }
  1323.                                     }
  1324.                                 }
  1325.                             }
  1326.                             break; /* font_size ! */
  1327.                     case 4:
  1328.                         temp = get_string_argument(infile,1);
  1329.                         decimals = find_number_of_digits(precision);
  1330.                         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,%d,\"%s\",%d,\"%s\",%d,%s));\n",click_cnt,onclick,drag_type,decimals,double_data[0],decimals,double_data[1],line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,0,0,0,0,0,0,temp,font_size,font_family,use_affine,affine_matrix);
  1331.                         click_cnt++;reset();break;
  1332.                     default:break;
  1333.                 }
  1334.             }
  1335.             break;
  1336.         case FLY_TEXTUP:
  1337.         /*
  1338.          @ textup fontcolor,x,y,font,text_string
  1339.          @ can <b>not</b> be set "onclick" or "drag xy" (because of translaton matrix...mouse incompatible)
  1340.          @ font may be described by keywords : giant,huge,normal,small,tiny
  1341.          @ use command 'fontsize' to increase base fontsize for the keywords
  1342.          @ backwards compatible with flydraw
  1343.          @ unicode supported: textup red,0,0,huge,\\u2232
  1344.          @ use command 'stringup' and 'fontfamily' for a more fine grained control over html5 canvas text element
  1345.          @ 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 rested 'fontfamily' to something lke 'fontfamily Ariel' before the old flydraw commands.
  1346.         */
  1347.             if( js_function[DRAW_TEXTS] != 1 ){ js_function[DRAW_TEXTS] = 1;}  
  1348.             for(i = 0; i<5 ;i++){
  1349.                 switch(i){
  1350.                     case 0: font_color = get_color(infile,0);break;/* name or hex color */
  1351.                     case 1: int_data[0] = x2px(get_real(infile,0));break; /* x */
  1352.                     case 2: int_data[1] = y2px(get_real(infile,0));break; /* y */
  1353.                     case 3: fly_font = get_string_argument(infile,0);
  1354.                             if(strcmp(fly_font,"giant") == 0){
  1355.                                 font_size = (int)(font_size + 24);
  1356.                             }
  1357.                             else
  1358.                             {
  1359.                                 if(strcmp(fly_font,"huge") == 0){
  1360.                                     font_size = (int)(font_size + 14);
  1361.                                 }
  1362.                                 else
  1363.                                 {
  1364.                                     if(strcmp(fly_font,"large") == 0){
  1365.                                         font_size = (int)(font_size + 6);
  1366.                                         }
  1367.                                         else
  1368.                                         {
  1369.                                             if(strcmp(fly_font,"small") == 0){
  1370.                                                 font_size = (int)(font_size - 4);
  1371.                                                 if(font_size<0){font_size = 8;}
  1372.                                         }
  1373.                                     }
  1374.                                 }
  1375.                             }
  1376.                             break; /* font_size ! */
  1377.                     case 4:
  1378.                     decimals = find_number_of_digits(precision);
  1379.                     temp = get_string_argument(infile,1);
  1380.                     string_length = snprintf(NULL,0,"draw_text(%d,%d,%d,%d,\"%s\",\"%s\",%.2f,90,\"%s\",%d,%.2f,%d,[%d,%d]);\n",STATIC_CANVAS,int_data[0],int_data[1],font_size,font_family,font_color,stroke_opacity,temp,use_rotate,angle,use_translate,translate_x,translate_y);
  1381.                     check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  1382.                     snprintf(tmp_buffer,string_length,"draw_text(%d,%d,%d,%d,\"%s\",\"%s\",%.2f,90,\"%s\",%d,%.2f,%d,[%d,%d]);\n",STATIC_CANVAS,int_data[0],int_data[1],font_size,font_family,font_color,stroke_opacity,temp,use_rotate,angle,use_translate,translate_x,translate_y);
  1383.                     add_to_buffer(tmp_buffer);
  1384.                     break;
  1385.                     default:break;
  1386.                 }
  1387.             }
  1388.             reset();
  1389.             break;
  1390.         case FONTFAMILY:
  1391.         /*
  1392.          @ fontfamily font_description
  1393.          @ set the font family; for browsers that support it
  1394.          @ font_description: Ariel ,Courier, Helvetica etc
  1395.          @ 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
  1396.          @ use correct syntax : 'font style' 'font size'px 'fontfamily'
  1397.         */
  1398.             font_family = get_string(infile,1);
  1399.             break;
  1400.         case STRINGUP:
  1401.         /*
  1402.          @ stringup color,x,y,rotation_degrees,the text string
  1403.          @ can <b>not</b> be set "onclick" or "drag xy" (because of translaton matrix...mouse incompatible)
  1404.          @ unicode supported: stringup red,0,0,45,\\u2232
  1405.          @ use a command like 'fontfamily bold 34px Courier' <br />to set fonts on browser that support font change
  1406.  
  1407.         */
  1408.             if( js_function[DRAW_TEXTS] != 1 ){ js_function[DRAW_TEXTS] = 1;}   /* can not be added to shape library : rotate / mouse issues */
  1409.             for(i=0;i<6;i++){
  1410.                 switch(i){
  1411.                     case 0: font_color = get_color(infile,0);break;/* name or hex color */
  1412.                     case 1: int_data[0] = x2px(get_real(infile,0));break; /* x */
  1413.                     case 2: int_data[1] = y2px(get_real(infile,0));break; /* y */
  1414.                     case 3: double_data[0] = get_real(infile,0);break;/* rotation */
  1415.                     case 4: decimals = find_number_of_digits(precision);
  1416.                             temp = get_string_argument(infile,1);
  1417.                             string_length = snprintf(NULL,0,"draw_text(%d,%d,%d,%d,\"%s\",\"%s\",%.2f,%.2f,\"%s\",%d,%.2f,%d,[%d,%d]);\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_translate,translate_x,translate_y);
  1418.                             check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  1419.                             snprintf(tmp_buffer,string_length,"draw_text(%d,%d,%d,%d,\"%s\",\"%s\",%.2f,%.2f,\"%s\",%d,%.2f,%d,[%d,%d]);\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_translate,translate_x,translate_y);
  1420.                             add_to_buffer(tmp_buffer);
  1421.                             break;
  1422.                     default:break;
  1423.                 }
  1424.             }
  1425.             reset();
  1426.             break;
  1427.         case STRING:
  1428.         /*
  1429.          @ string color,x,y,the text string
  1430.          @ may be set "onclick" or "drag xy"
  1431.          @ unicode supported: string red,0,0,\\u2232
  1432.          @ use a command like 'fontfamily italic 24px Ariel' <br />to set fonts on browser that support font change
  1433.         */
  1434.             for(i=0;i<5;i++){
  1435.                 switch(i){
  1436.                     case 0: stroke_color = get_color(infile,0);break;/* name or hex color */
  1437.                     case 1: double_data[0] = get_real(infile,0);break; /* x in xrange*/
  1438.                     case 2: double_data[1] = get_real(infile,0);break; /* y in yrange*/
  1439.                     case 3: decimals = find_number_of_digits(precision);
  1440.                         temp = get_string_argument(infile,1);
  1441.                         decimals = find_number_of_digits(precision);
  1442.                         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,%d,\"%s\",%d,\"%s\",%d,%s));\n",click_cnt,onclick,drag_type,decimals,double_data[0],decimals,double_data[1],line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,0,0,0,0,0,0,temp,font_size,font_family,use_affine,affine_matrix);
  1443.                         click_cnt++;reset();break;
  1444.                             break;
  1445.                     default:break;
  1446.                 }
  1447.             }
  1448.             break;
  1449.         case MATHML:
  1450.         /*
  1451.         @ mathml x1,y1,x2,y2,mathml_string
  1452.         @ mathml will be displayed in a rectangle left top (x1:y1) , right bottom (x2:y2)
  1453.         @ can be set onclick <br />(however dragging is not supported)<br />javascript:read_dragdrop(); will return click number of mathml-object
  1454.         @ 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();"
  1455.         @ 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....
  1456.        
  1457.         */
  1458.             if( js_function[DRAW_XML] != 1 ){ js_function[DRAW_XML] = 1;}
  1459.             for(i=0;i<5;i++){
  1460.                 switch(i){
  1461.                     case 0: int_data[0]=x2px(get_real(infile,0));break; /* x in x/y-range coord system -> pixel width */
  1462.                     case 1: int_data[1]=y2px(get_real(infile,0));break; /* y in x/y-range coord system  -> pixel height */
  1463.                     case 2: int_data[2]=x2px(get_real(infile,0)) - int_data[0];break; /* width in x/y-range coord system -> pixel width */
  1464.                     case 3: int_data[3]=y2px(get_real(infile,0)) - int_data[1];break; /* height in x/y-range coord system  -> pixel height */
  1465.                     case 4: decimals = find_number_of_digits(precision);
  1466.                             if(onclick == 1 ){ onclick = click_cnt;click_cnt++;}
  1467.                             temp = get_string(infile,1);
  1468.                             if( strstr(temp,"\"") != 0 ){ temp = str_replace(temp,"\"","'"); }
  1469.                             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);
  1470.                             check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  1471.                             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);
  1472.                             add_to_buffer(tmp_buffer);
  1473.                             /*
  1474.                              in case inputs are present , trigger adding the read_mathml()
  1475.                              if no other reply_format is defined
  1476.                              note: all other reply types will include a reading of elements with id='mathml'+p)
  1477.                              */
  1478.                             if(strstr(temp,"mathml0") != NULL){
  1479.                              if(reply_format < 1 ){reply_format = 16;} /* no other reply type is defined */
  1480.                             }
  1481.                             break;
  1482.                     default:break;
  1483.                 }
  1484.             }
  1485.             reset();
  1486.             break;
  1487.         case HTTP:
  1488.         /*
  1489.          @http x1,y1,x2,y2,http://some_adress.com
  1490.          @an active html-page will be displayed in an "iframe" rectangle left top (x1:y1) , right bottom (x2:y2)
  1491.          @do not use interactivity (or mouse) if the mouse needs to be active in the iframe
  1492.          @can not be 'set onclick' or 'drag xy'
  1493.         */
  1494.             if( js_function[DRAW_HTTP] != 1 ){ js_function[DRAW_HTTP] = 1;}    
  1495.             for(i=0;i<5;i++){
  1496.                 switch(i){
  1497.                     case 0: int_data[0]=x2px(get_real(infile,0));break; /* x in x/y-range coord system -> pixel width */
  1498.                     case 1: int_data[1]=y2px(get_real(infile,0));break; /* y in x/y-range coord system  -> pixel height */
  1499.                     case 2: int_data[2]=x2px(get_real(infile,0)) - int_data[0];break; /* width in x/y-range coord system -> pixel width */
  1500.                     case 3: int_data[3]=y2px(get_real(infile,0)) - int_data[1];break; /* height in x/y-range coord system  -> pixel height */
  1501.                     case 4: decimals = find_number_of_digits(precision);
  1502.                             temp = get_string(infile,1);
  1503.                             if(strstr(temp,"\"") != 0 ){ temp = str_replace(temp,"\"","'");}
  1504.                             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);
  1505.                             check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  1506.                             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);
  1507.                             add_to_buffer(tmp_buffer);
  1508.                     break;
  1509.                 }
  1510.             }
  1511.             reset();
  1512.             break;
  1513.         case HTML:
  1514.         /*
  1515.          @ html x1,y1,x2,y2,html_string
  1516.          @ all tags are allowed
  1517.          @ can be set onclick <br />(dragging not supported)<br />javascript:read_dragdrop(); will return click number of mathml-object
  1518.          @ 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.
  1519.          
  1520.          note: uses the same code as 'mathml'
  1521.         */
  1522.             break;
  1523.         case X_AXIS_STRINGS:
  1524.         /*
  1525.          @ xaxis num1:string1:num2:string2:num3:string3:num4:string4:....num_n:string_n
  1526.          @ xaxistext num1:string1:num2:string2:num3:string3:num4:string4:....num_n:string_n
  1527.          @ use these x-axis values in stead of default xmin...xmax
  1528.          @ use command "fontcolor", "fontsize" , "fontfamily" to adjust font <br />defaults: black,12,Ariel
  1529.          @ if the 'x-axis words' are to big amd will overlap, a simple alternating offset will be applied
  1530.          @ 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
  1531.          @ 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
  1532.         */
  1533.             temp = get_string(infile,1);
  1534.             if( strstr(temp,":") != 0 ){ temp = str_replace(temp,":","\",\"");}
  1535.             if( strstr(temp,"pi") != 0 ){ temp = str_replace(temp,"pi","(3.1415927)");}/* we need to replace pi for javascript y-value*/
  1536.             fprintf(js_include_file,"x_strings = [\"%s\"];\n ",temp);
  1537.             use_axis_numbering = 1;
  1538.             break;
  1539.         case Y_AXIS_STRINGS:
  1540.         /*
  1541.          @ yaxis num1:string1:num2:string2:num3:string3:num4:string4:....num_n:string_n
  1542.          @ yaxistext num1:string1:num2:string2:num3:string3:num4:string4:....num_n:string_n
  1543.          @ use command "fontcolor", "fontsize" , "fontfamily" to adjust font <br />defaults: black,12,Ariel
  1544.          @ use these y-axis values in stead of default ymin...ymax
  1545.          @ 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
  1546.         */
  1547.             temp = get_string(infile,1);
  1548.             if( strstr(temp,":") != 0 ){ temp = str_replace(temp,":","\",\"");}
  1549.             if( strstr(temp,"pi") != 0 ){ temp = str_replace(temp,"pi","(3.1415927)");}/* we need to replace pi for javascript y-value*/
  1550.             fprintf(js_include_file,"y_strings = [\"%s\"];\n ",temp);
  1551.             use_axis_numbering = 1;
  1552.             break;
  1553.          
  1554.         case AXIS_NUMBERING:
  1555.         /*
  1556.             @ axisnumbering
  1557.             @ keyword, no aguments required
  1558.         */
  1559.             use_axis_numbering = 1;
  1560.             break;
  1561.         case AXIS:
  1562.         /*
  1563.             @ axis
  1564.             @ keyword, no aguments required
  1565.  
  1566.         */
  1567.             use_axis = TRUE;
  1568.             break;
  1569.         case SGRAPH:
  1570.         /*
  1571.          @ sgraph xstart,ystart,xmajor,ymajor,xminor,yminor,majorgrid_color,minorgrid_color
  1572.          @ primitive implementation of a 'broken scale' graph...
  1573.          @ not very versatile.
  1574.          @ 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
  1575.         */
  1576.             if( js_function[DRAW_SGRAPH] != 1 ){ js_function[DRAW_SGRAPH] = 1;}
  1577.             for(i = 0 ; i < 8 ;i++){
  1578.                 switch(i){
  1579.                     case 0:double_data[0] = get_real(infile,0);break;
  1580.                     case 1:double_data[1] = get_real(infile,0);break;
  1581.                     case 2:double_data[2] = get_real(infile,0);break;
  1582.                     case 3:double_data[3] = get_real(infile,0);break;
  1583.                     case 4:int_data[0] = (int)(get_real(infile,0));break;
  1584.                     case 5:int_data[1] = (int)(get_real(infile,0));break;
  1585.                     case 6:stroke_color = get_color(infile,0);break;
  1586.                     case 7:font_color = get_color(infile,1);
  1587.                     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);
  1588.                     check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  1589.                     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);
  1590.                     add_to_buffer(tmp_buffer);
  1591.                     break;
  1592.                     default:break;
  1593.                 }
  1594.             }
  1595.             /* sgraph(canvas_type,precision,xmajor,ymajor,xminor,yminor,majorcolor,minorcolor,fontfamily,opacity)*/
  1596.             break;
  1597.         case GRID:/* xmajor,ymajor,color [,xminor,yminor,tick length (px) ,color]*/
  1598.         /*
  1599.          @ grid step_x,step_y,gridcolor
  1600.          @ use command "fontcolor", "fontsize" , "fontfamily" to adjust font <br />defaults: black,12,Ariel
  1601.          @ 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
  1602.          @ 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)
  1603.          @ can not be set "onclick" or "drag xy"
  1604.          @ 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')
  1605.          @ 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')
  1606.          @ 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')
  1607.         */
  1608.             if( js_function[DRAW_YLOGSCALE] == 1 ){canvas_error("only one grid type is allowed...");}
  1609.             if( js_function[DRAW_GRID] != 1 ){ js_function[DRAW_GRID] = 1;}
  1610.             for(i=0;i<4;i++){
  1611.                 switch(i){
  1612.                     case 0:double_data[0] = get_real(infile,0);break;/* xmajor */
  1613.                     case 1:double_data[1] = get_real(infile,0);break;/* ymajor */
  1614.                     case 2:
  1615.                     if( use_axis == TRUE ){
  1616.                         stroke_color = get_color(infile,0);
  1617.                         done = FALSE;
  1618.                         int_data[0] = (int) (get_real(infile,0));/* xminor */
  1619.                         int_data[1] = (int) (get_real(infile,0));/* yminor */
  1620.                         int_data[2] = (int) (get_real(infile,0));/* tic_length */
  1621.                         fill_color = get_color(infile,1); /* used as axis_color*/
  1622.                     }
  1623.                     else
  1624.                     {
  1625.                         int_data[0] = 1;
  1626.                         int_data[1] = 1;
  1627.                         stroke_color = get_color(infile,1);
  1628.                         fill_color = stroke_color;
  1629.                     }
  1630.                     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 !");}
  1631.                     /* set snap_x snap_y values in pixels */
  1632.                     fprintf(js_include_file,"snap_x = %f;snap_y = %f\n;",double_data[0] / int_data[0],double_data[1] / int_data[1]);
  1633. /* 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_translate,vector,use_dashed,dashtype0,dashtype1,font_color,fill_opacity){ */
  1634.  
  1635.                     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,[%d,%d],%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_translate,translate_x,translate_y,use_dashed,dashtype[0],dashtype[1],font_color,fill_opacity);
  1636.                     check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  1637.                     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,[%d,%d],%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_translate,translate_x,translate_y,use_dashed,dashtype[0],dashtype[1],font_color,fill_opacity);
  1638.                     add_to_buffer(tmp_buffer);
  1639.                     break;
  1640.                 }
  1641.             }
  1642.             reset();
  1643.             break;
  1644.         case OPACITY:
  1645.         /*
  1646.         @ opacity 0-255,0-255
  1647.         @
  1648.         */
  1649.             for(i = 0 ; i<2;i++){
  1650.                 switch(i){
  1651.                     case 0: double_data[0]=(int)(get_real(infile,0));break;
  1652.                     case 1: double_data[1]=(int)(get_real(infile,1));break;
  1653.                     default: break;
  1654.                 }
  1655.             }
  1656.             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 ? */
  1657.             stroke_opacity = (double) (0.0039215*double_data[0]);/* 0.0 - 1.0 */
  1658.             fill_opacity = (double) (0.0039215*double_data[1]);/* 0.0 - 1.0 */
  1659.             break;
  1660.         case ROTATE:
  1661.         /*
  1662.          @rotate rotation_angle
  1663.          @
  1664.         */
  1665.             use_rotate = TRUE;
  1666.             use_translate = TRUE;
  1667.             translate_x = x2px(0);
  1668.             translate_y = y2px(0);
  1669.             angle = get_real(infile,1);
  1670.             break;
  1671.         case KILLAFFINE:
  1672.         /*
  1673.         @ killaffine
  1674.         @ keyword : resets the transformation matrix to 1,0,0,1,0,0
  1675.         */
  1676.             use_affine = FALSE;
  1677.             snprintf(affine_matrix,14,"[1,0,0,1,0,0]");    
  1678.             break;
  1679.         case AFFINE:
  1680.         /*
  1681.          @affine a,b,c,d,tx,ty
  1682.          @ defines a transformation matrix for subsequent objects
  1683.          @ use keyword 'killaffine' to end the transformation
  1684.          @ note 1: only 'draggable' / 'noclick' objects can be transformed.
  1685.          @ note 2: do not use 'onclick' or 'drag xy' with tranformation objects : the mouse coordinates do not get transformed (yet)
  1686.          @ note 3: no matrix operations on the transformation matrix implemented (yet)
  1687.          @ a : Scales the drawings horizontally
  1688.          @ b : Skews the drawings horizontally
  1689.          @ c : Skews the drawings vertically
  1690.          @ d : Scales the drawings vertically
  1691.          @ tx: Moves the drawings horizontally in pixels !
  1692.          @ ty: Moves the drawings vertically in pixels !
  1693.         */
  1694.             for(i = 0 ; i<6;i++){
  1695.                 switch(i){
  1696.                     case 0: double_data[0] = get_real(infile,0);break;
  1697.                     case 1: double_data[1] = get_real(infile,0);break;
  1698.                     case 2: double_data[2] = get_real(infile,0);break;
  1699.                     case 3: double_data[3] = get_real(infile,0);break;
  1700.                     case 4: int_data[0] = (int)(get_real(infile,0));break;
  1701.                     case 5: int_data[1] = (int)(get_real(infile,1));
  1702.                         use_affine = TRUE;
  1703.                         string_length = snprintf(NULL,0,"[%.2f,%.2f,%.2f,%.2f,%d,%d] ",double_data[0],double_data[1],double_data[2],double_data[3],int_data[0],int_data[1]);
  1704.                         check_string_length(string_length);affine_matrix = my_newmem(string_length+1);
  1705.                         snprintf(affine_matrix,string_length,"[%.2f,%.2f,%.2f,%.2f,%d,%d] ",double_data[0],double_data[1],double_data[2],double_data[3],int_data[0],int_data[1]);    
  1706.                     break;
  1707.                     default: break;
  1708.                 }
  1709.             }
  1710.         break;
  1711.         case KILLTRANSLATION:
  1712.         /*
  1713.          killtranslation
  1714.         */
  1715.             break;
  1716.         case TRANSLATION:
  1717.         /*
  1718.          @translation tx,ty
  1719.          @
  1720.         */
  1721.             use_translate = TRUE;
  1722.             translate_x = get_real(infile,0);
  1723.             translate_y = get_real(infile,1);
  1724.             break;
  1725.         case DASHED:
  1726.         /*
  1727.         @ keyword "dashed"
  1728.         @ next object will be drawn with a dashed line
  1729.         @ change dashing scheme by using command "dashtype int,int)
  1730.         */
  1731.             use_dashed = TRUE;
  1732.             break;
  1733.         case FILLED:
  1734.         /*
  1735.         @ keyword "filled"
  1736.         @ the next 'fillable' object (only) will be filled
  1737.         @ use command "fillcolor color" to set fillcolor
  1738.         @ use command "opacity 0-255,0-255" to set stroke and fill-opacity
  1739.         @ 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 !
  1740.         */
  1741.             use_filled = TRUE;
  1742.             break;
  1743.         case STYLE:
  1744.         /*
  1745.          @highlight color,opacity,linewidth
  1746.          @ NOT IMPLEMENTED
  1747.          @ use command "onclick" : when the object receives a userclick it will increase it's linewidth
  1748.         */
  1749.             break;
  1750.         case FILLCOLOR:
  1751.         /*
  1752.         @ fillcolor colorname or #hex
  1753.         @ Set the color for a filled object : mainly used for command 'userdraw obj,stroke_color'
  1754.         @ All fillable massive object will have a fillcolor == strokecolor (just to be compatible with flydraw...)
  1755.         */
  1756.             fill_color = get_color(infile,1);
  1757.             break;
  1758.         case STROKECOLOR:
  1759.         /*
  1760.         @ strokecolor colorname or #hex
  1761.         @ to be used for commands that do not supply a color argument (like command 'linegraph')
  1762.         */
  1763.             stroke_color = get_color(infile,1);
  1764.             break;
  1765.         case BGIMAGE:
  1766.         /*
  1767.          @bgimage image_location
  1768.          @use an image as background .<br />(we use the background of 'canvas_div' )
  1769.          @the background image will be resized to match "width = xsize" and "height = ysize"
  1770.         */
  1771.         URL = get_string(infile,1);
  1772.         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);
  1773.             break;
  1774.         case BGCOLOR:
  1775.         /*
  1776.          @bgcolor colorname or #hex
  1777.          @use this color as background of the "div" containing the canvas(es)
  1778.         */
  1779.         /* [255,255,255]*/
  1780.             bgcolor = get_string(infile,1);
  1781.             if(strstr(bgcolor,"#") == NULL){ /* convert colorname -> #ff00ff */
  1782.                 int found = 0;
  1783.                 for( i = 0; i < NUMBER_OF_COLORNAMES ; i++ ){
  1784.                     if( strcmp( colors[i].name , bgcolor ) == 0 ){
  1785.                         bgcolor = colors[i].hex;
  1786.                         found = 1;
  1787.                         break;
  1788.                     }
  1789.                 }
  1790.                 if(found == 0){canvas_error("your bgcolor is not in my rgb.txt data list : use hexcolor...something like #a0ffc4");}
  1791.             }
  1792.             fprintf(js_include_file,"<!-- set background color of canvas div -->\ncanvas_div.style.backgroundColor = \"%s\";canvas_div.style.opacity = %f;\n",bgcolor,fill_opacity);
  1793.             break;
  1794.         case COPY:
  1795.         /*
  1796.         @ copy x,y,x1,y1,x2,y2,[filename URL]
  1797.         @ Insert the region from (x1,y1) to (x2,y2) (in pixels) of [filename] to (x,y) in x/y-range
  1798.         @ If x1=y1=x2=y2=-1, the whole [filename URL] is copied.
  1799.         @ [filename] is the URL of the image   
  1800.         @ URL is normal URL of network reachable image file location<br />(eg special url for 'classexo' not -yet- implemented)
  1801.         @ 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
  1802.         @ if you want to draw / userdraw  on an "imported" image, make sure it is transparent.<br />for example GNUPlot: set terminal gif transparent
  1803.  
  1804.         context.drawImage(img,sx,sy,swidth,sheight,x,y,width,height);
  1805.         draw_external_image(canvas_type,URL,sx,sy,swidth,sheight,x,y,width,height,drag_drop){
  1806.         */
  1807.             for(i = 0 ; i<7;i++){
  1808.                 switch(i){
  1809.                     case 0: int_data[0]=x2px(get_real(infile,0));break; /* x left top corner in x/y range  */
  1810.                     case 1: int_data[1]=y2px(get_real(infile,0));break; /* y left top corner in x/y range */
  1811.                     case 2: int_data[2]=(int)(get_real(infile,0));break;/* x1 in px of external image */
  1812.                     case 3: int_data[3]=(int)(get_real(infile,0));break;/* y1 in px of external image */
  1813.                     case 4: int_data[4]=(int)(get_real(infile,0));break;/* x2 --> width  */
  1814.                     case 5: int_data[5]=(int)(get_real(infile,0)) ;break;/* y2 --> height */
  1815.                     case 6: URL = get_string(infile,1);
  1816.                             int_data[6] = int_data[4] - int_data[2];/* swidth & width (if not scaling )*/
  1817.                             int_data[7] = int_data[5] - int_data[3];/* sheight & height (if not scaling )*/
  1818.                             if( drag_type > -1 ){
  1819.                                 if( js_function[DRAG_EXTERNAL_IMAGE] != 1 ){ js_function[DRAG_EXTERNAL_IMAGE] = 1;}
  1820.                                 if(reply_format < 1 ){reply_format = 20;}
  1821.                                 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);
  1822.                                 check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  1823.                                 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);                       
  1824.                                 drag_type = -1;
  1825.                                 ext_img_cnt++;
  1826.                             }
  1827.                             else
  1828.                             {
  1829.                                 if( js_function[DRAW_EXTERNAL_IMAGE] != 1 ){ js_function[DRAW_EXTERNAL_IMAGE] = 1;}
  1830.                                 /*
  1831.                                 draw_external_image = function(URL,sx,sy,swidth,sheight,x0,y0,width,height,draggable){\n\
  1832.                                 */
  1833.                                 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]);
  1834.                                 check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  1835.                                 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]);
  1836.                             }
  1837.                             add_to_buffer(tmp_buffer);
  1838.                             break;
  1839.                     default: break;
  1840.                 }
  1841.             }
  1842.             reset();
  1843.             break;
  1844. /*
  1845. context.drawImage(img,sx,sy,swidth,sheight,x,y,width,height);
  1846. img     Specifies the image, canvas, or video element to use
  1847. sx      The x coordinate where to start clipping : x1 = int_data[0]
  1848. sy      The y coordinate where to start clipping : x2 = int_data[1]
  1849. swidth  The width of the clipped image : int_data[2] - int_data[0]
  1850. sheight The height of the clipped image : int_data[3] - int_data[1]
  1851. x       The x coordinate where to place the image on the canvas : dx1 = int_data[4]
  1852. y       The y coordinate where to place the image on the canvas : dy1 = int_data[5]
  1853. width   The width of the image to use (stretch or reduce the image) : dx2 - dx1 = int_data[6]
  1854. height  The height of the image to use (stretch or reduce the image) : dy2 - dy1 = int_data[7]
  1855. */
  1856.         case COPYRESIZED:
  1857.         /*
  1858.         @ copyresized x1,y2,x2,y2,dx1,dy1,dx2,dy2,image_file_url
  1859.         @ 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
  1860.         @ If x1=y1=x2=y2=-1, the whole [filename / URL ] is copied and resized.
  1861.         @ URL is normal URL of network reachable image file location<br />(eg special url for 'classexo' not -yet- implemented)
  1862.         @ 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
  1863.         @ if you want to draw / userdraw  on an "imported" image, make sure it is transparent.<br />for example GNUPlot: set terminal gif transparent
  1864.         */
  1865.             for(i = 0 ; i<9;i++){
  1866.                 switch(i){
  1867.                     case 0: int_data[0] = (int)(get_real(infile,0));break; /* x1 */
  1868.                     case 1: int_data[1] = (int)(get_real(infile,0));break; /* y1 */
  1869.                     case 2: int_data[2] = (int)(get_real(infile,0));break;/* x2 */
  1870.                     case 3: int_data[3] = (int)(get_real(infile,0));break;/* y2 */
  1871.                     case 4: int_data[4] = x2px(get_real(infile,0));break;/* dx1 */
  1872.                     case 5: int_data[5] = y2px(get_real(infile,0));break;/* dy1 */
  1873.                     case 6: int_data[6] = x2px(get_real(infile,0));break;/* dx2 */
  1874.                     case 7: int_data[7] = y2px(get_real(infile,0));break;/* dy2 */
  1875.                     case 8: URL = get_string(infile,1);
  1876.                             if( drag_type > -1 ){
  1877.                                 if( js_function[DRAG_EXTERNAL_IMAGE] != 1 ){ js_function[DRAG_EXTERNAL_IMAGE] = 1;}
  1878.                                 if(reply_format < 1 ){reply_format = 20;}
  1879.                                 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);
  1880.                                 check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  1881.                                 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);
  1882.                                 drag_type = -1;
  1883.                                 ext_img_cnt++;
  1884.                             }
  1885.                             else
  1886.                             {
  1887.                                 if( js_function[DRAW_EXTERNAL_IMAGE] != 1 ){ js_function[DRAW_EXTERNAL_IMAGE] = 1;}
  1888.                                 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]);
  1889.                                 check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  1890.                                 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]);
  1891.                             }
  1892.                             add_to_buffer(tmp_buffer);
  1893.                     default: break;
  1894.                 }
  1895.             }
  1896.             reset();
  1897.             break;
  1898.         case BUTTON:
  1899.         /*
  1900.          button x,y,value
  1901.         */
  1902.         break;
  1903.         case INPUTSTYLE:
  1904.         /*
  1905.         @ inputstyle style_description
  1906.         @ example: inputstyle color:blue;font-weight:bold;font-style:italic;font-size:16pt
  1907.         */
  1908.             input_style = get_string(infile,1);
  1909.             break;
  1910.         case INPUT:
  1911.         /*
  1912.          @ input x,y,size,editable,value
  1913.          @ to set inputfield "readonly", use editable = 0
  1914.          @ only active inputfields (editable = 1) will be read with read_canvas();
  1915.          @ may be further controlled by "inputstyle" (inputcss is not yet implemented...)
  1916.          @ if mathml inputfields are present and / or some userdraw is performed, these data will NOT be send as well (javascript:read_canvas();)
  1917.         */
  1918.         if( js_function[DRAW_INPUTS] != 1 ){ js_function[DRAW_INPUTS] = 1;}    
  1919.             for(i = 0 ; i<5;i++){
  1920.                 switch(i){
  1921.                     case 0: int_data[0]=x2px(get_real(infile,0));break;/* x in px */
  1922.                     case 1: int_data[1]=y2px(get_real(infile,0));break;/* y in px */
  1923.                     case 2: int_data[2]=abs( (int)(get_real(infile,0)));break; /* size */
  1924.                     case 3: if( get_real(infile,1) >0){int_data[3] = 1;}else{int_data[3] = 0;};break; /* readonly */
  1925.                     case 4:
  1926.                             temp = get_string_argument(infile,1);
  1927.                             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);
  1928.                             check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  1929.                             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);
  1930.                             add_to_buffer(tmp_buffer);
  1931.                             input_cnt++;break;
  1932.                     default: break;
  1933.                 }
  1934.             }
  1935.             if(reply_format < 1 ){reply_format = 15;}
  1936.             reset();
  1937.             break;
  1938.         case TEXTAREA:
  1939.         /*
  1940.          @ textarea x,y,cols,rows,readonly,value
  1941.          @ may be further controlled by "inputstyle"
  1942.          @ if mathml inputfields are present and / or some userdraw is performed, these data will NOT be send as well (javascript:read_canvas();)
  1943.         */
  1944.             if( js_function[DRAW_TEXTAREAS] != 1 ){ js_function[DRAW_TEXTAREAS] = 1;}  
  1945.             for(i = 0 ; i<6;i++){
  1946.                 switch(i){
  1947.                     case 0: int_data[0]=x2px(get_real(infile,0));break; /* x in px */
  1948.                     case 1: int_data[1]=y2px(get_real(infile,0));break; /* y in px */
  1949.                     case 2: int_data[2]=abs( (int)(get_real(infile,0)));break;/* cols */
  1950.                     case 3: int_data[3]=abs( (int)(get_real(infile,0)));break;/* rows */
  1951.                     case 4: if( get_real(infile,1) >0){int_data[4] = 1;}else{int_data[3] = 0;};break; /* readonly */
  1952.                     case 5: temp = get_string_argument(infile,1);
  1953.                             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);
  1954.                             check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  1955.                             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);
  1956.                             add_to_buffer(tmp_buffer);
  1957.                             input_cnt++;break;
  1958.                     default: break;
  1959.                 }
  1960.             }
  1961.             if(reply_format < 1 ){reply_format = 15;}
  1962.             reset();
  1963.             break;
  1964.         case MOUSE_PRECISION:
  1965.         /*
  1966.             @ precision int
  1967.             @ 10 = 1 decimal ; 100 = 2 decimals etc
  1968.             @ may be used / changed before every object
  1969.         */
  1970.             precision = (int) (get_real(infile,1));
  1971.             break;
  1972.         case ZOOM:
  1973.         /*
  1974.          @ zoom button_color
  1975.          @ introduce a controlpanel at the lower right corner
  1976.          @ 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
  1977.          @ the 'x' symbol will do a 'location.reload' of the page, and thus reset all canvas drawings.
  1978.          @ choose an appropriate colour, so the small 'x,arrows,-,+' are clearly visible
  1979.          @ command 'opacity' may be used to set stroke_opacity of 'buttons
  1980.          @ NOTE: only objects that may be set draggable / clickable will be zoomed / panned
  1981.          @ 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 !!
  1982.         */
  1983.             fprintf(js_include_file,"use_pan_and_zoom = 1;");
  1984.             use_pan_and_zoom = TRUE;
  1985.             if( js_function[DRAW_ZOOM_BUTTONS] != 1 ){ js_function[DRAW_ZOOM_BUTTONS] = 1;}
  1986.             /* we use BG_CANVAS (0) */
  1987.             stroke_color = get_color(infile,1);
  1988.             string_length = snprintf(NULL,0," draw_zoom_buttons(%d,\"%s\",%f);",BG_CANVAS,stroke_color,stroke_opacity);
  1989.             check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  1990.             snprintf(tmp_buffer,MAX_BUFFER-1,"draw_zoom_buttons(%d,\"%s\",%f);",BG_CANVAS,stroke_color,stroke_opacity);
  1991.             add_to_buffer(tmp_buffer);
  1992.             done = TRUE;
  1993.             break;
  1994.         case ONCLICK:
  1995.         /*
  1996.          @ onclick
  1997.          @ keyword, no arguments
  1998.          @ if the next object is clicked, it's 'object sequence number' in fly script is returned <br /> by javascript:read_canvas();
  1999.          @ Line based object will show an increase in linewidth<br />Font based objects will show the text in 'bold' when clicked.
  2000.          @ NOTE: not all objects  may be set clickable
  2001.         */
  2002.            
  2003.             onclick = 1;
  2004.             break;
  2005.         case DRAG:
  2006.         /*
  2007.          @ drag [x][y][xy]
  2008.          @ the next object will be draggable in x / y / xy direction
  2009.          @ the displacement can be read by 'javascript:read_dragdrop();'
  2010.          @ 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.
  2011.          @ 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 !!
  2012.         */
  2013.             temp = get_string(infile,1);
  2014.             if(strstr(temp,"xy") != NULL ){
  2015.                 drag_type = 0;
  2016.             }
  2017.             else
  2018.             {
  2019.                 if(strstr(temp,"x") != NULL ){
  2020.                     drag_type = 1;
  2021.                 }
  2022.                 else
  2023.                 {
  2024.                     drag_type = 2;
  2025.                 }
  2026.             }
  2027.             onclick = 2;
  2028.             /* if(use_userdraw == TRUE ){canvas_error("\"drag & drop\" may not be combined with \"userdraw\" or \"pan and zoom\" \n");} */
  2029.             break;
  2030.         case BLINK:
  2031.         /*
  2032.          @ blink time(seconds)
  2033.          @ NOT IMPLEMETED -YET
  2034.         */
  2035.             break;
  2036.         case MOUSE:
  2037.         /*
  2038.          @ mouse color,fontsize
  2039.          @ will display the cursor coordinates  in 'color' and 'font size'<br /> using default fontfamily Ariel
  2040.         */
  2041.             use_mouse_coordinates = TRUE; /* will add & call function "use_mouse_coordinates(){}" in current_canvas /current_context */
  2042.             stroke_color = get_color(infile,0);
  2043.             font_size = (int) (get_real(infile,1));
  2044.             add_js_mouse(js_include_file,MOUSE_CANVAS,canvas_root_id,precision,stroke_color,font_size,stroke_opacity);
  2045.             break;
  2046.         case INTOOLTIP:
  2047.             /*
  2048.             @ intooltip link_text
  2049.             @ link_text is a single line (span-element)
  2050.             @ link_text may also be an image URL http://some_server/images/my_image.png
  2051.             @ link_text may contain HTML markup
  2052.             @ the canvas will be displayed in a tooltip on 'link_text'
  2053.             @ the canvas is default transparent: use command 'bgcolor color' to adjust background-color<br />the link test will alos be shown with this bgcolor.
  2054.             */
  2055.             if(use_input_xy == TRUE){canvas_error("intooltip can not be combined with userinput_xy command");}
  2056.             use_tooltip = TRUE;
  2057.             tooltip_text = get_string(infile,1);
  2058.             if(strstr(tooltip_text,"\"") != 0 ){ tooltip_text = str_replace(tooltip_text,"\"","'"); }
  2059.             break;
  2060.         case AUDIO:
  2061.         /*
  2062.         @ audio x,y,w,h,loop,visible,audiofile location
  2063.         @ x,y : left top corner of audio element (in xrange / yrange)
  2064.         @ w,y : width and height in pixels
  2065.         @ loop : 0 or 1 ( 1 = loop audio fragment)
  2066.         @ visible : 0 or 1 (1 = show controls)
  2067.         @ audio format may be in *.mp3 or *.ogg
  2068.         @ If you are using *.mp3 : be aware that FireFox will not (never) play this ! (Pattented format)
  2069.         @ if you are using *.ogg : be aware that Microsoft based systems not support it natively
  2070.         @ To avoid problems supply both types (mp3 and ogg) of audiofiles.<br />the program will use both as source tag
  2071.         @ 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 />
  2072.         */
  2073.             if( js_function[DRAW_AUDIO] != 1 ){ js_function[DRAW_AUDIO] = 1;}
  2074.             for(i=0;i<7;i++){
  2075.                 switch(i){
  2076.                     case 0: int_data[0] = x2px(get_real(infile,0)); break; /* x in x/y-range coord system -> pixel */
  2077.                     case 1: int_data[1] = y2px(get_real(infile,0)); break; /* y in x/y-range coord system  -> pixel */
  2078.                     case 2: int_data[2] = (int) (get_real(infile,0)); break; /* pixel width */
  2079.                     case 3: int_data[3] = (int) (get_real(infile,0)); break; /* height pixel height */
  2080.                     case 4: int_data[4] = (int) (get_real(infile,0)); if(int_data[4] != TRUE){int_data[4] = FALSE;} break; /* loop boolean */
  2081.                     case 5: int_data[5] = (int) (get_real(infile,0)); if(int_data[5] != TRUE){int_data[5] = FALSE;} break; /* visible boolean */
  2082.                     case 6:
  2083.                     temp = get_string(infile,1);
  2084.                     if( strstr(temp,".mp3") != 0 ){ temp = str_replace(temp,".mp3","");}
  2085.                     if( strstr(temp,".ogg") != 0 ){ temp = str_replace(temp,".ogg","");}
  2086.                     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);
  2087.                     check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  2088.                     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);
  2089.                     add_to_buffer(tmp_buffer);
  2090.                     break;
  2091.                     default:break;
  2092.                 }
  2093.             }
  2094.             reset();
  2095.             break;
  2096.         case VIDEO:
  2097.         /*
  2098.         @ video x,y,w,h,videofile location
  2099.         @ x,y : left top corner of audio element (in xrange / yrange)
  2100.         @ w,y : width and height in pixels
  2101.         @ example:<br />wims getfile : video 0,0,120,120,myvideo.mp4
  2102.         @ video format may be in *.mp4 (todo:other formats)
  2103.         */
  2104.             if( js_function[DRAW_VIDEO] != 1 ){ js_function[DRAW_VIDEO] = 1;}
  2105.             for(i=0;i<5;i++){
  2106.                 switch(i){
  2107.                     case 0: int_data[0] = x2px(get_real(infile,0)); break; /* x in x/y-range coord system -> pixel */
  2108.                     case 1: int_data[1] = y2px(get_real(infile,0)); break; /* y in x/y-range coord system  -> pixel */
  2109.                     case 2: int_data[2] = (int) (get_real(infile,0)); break; /* pixel width */
  2110.                     case 3: int_data[3] = (int) (get_real(infile,0)); break; /* height pixel height */
  2111.                     case 4: temp = get_string(infile,1);
  2112.                             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);
  2113.                             check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  2114.                             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);
  2115.                             add_to_buffer(tmp_buffer);
  2116.                             break;
  2117.                     default:break;
  2118.                 }
  2119.             }
  2120.             reset();
  2121.             break;
  2122.         case HATCHFILL:
  2123.         /*
  2124.         @ hatchfill x0,y0,dx,dy,color
  2125.         @ x0,y0 in xrange / yrange
  2126.         @ distances dx,dy in pixels
  2127.         */
  2128.             if( js_function[DRAW_HATCHFILL] != 1 ){ js_function[DRAW_HATCHFILL] = 1;}
  2129.             for(i=0;i<5;i++){
  2130.                 switch(i){
  2131.                     case 0: int_data[0] = x2px(get_real(infile,0)); break; /* x */
  2132.                     case 1: int_data[1] = y2px(get_real(infile,0)); break; /* y  */
  2133.                     case 2: int_data[2] = (int) (get_real(infile,0)); break; /* dx pixel */
  2134.                     case 3: int_data[3] = (int) (get_real(infile,0)); break; /* dy pixel*/
  2135.                     case 4: stroke_color = get_color(infile,1);
  2136.                     /* draw_hatchfill(ctx,x0,y0,dx,dy,linewidth,color,opacity,xsize,ysize) */
  2137.                     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);
  2138.                     check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  2139.                     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);
  2140.                     add_to_buffer(tmp_buffer);
  2141.                     break;
  2142.                     default:break;
  2143.                 }
  2144.             }
  2145.             reset();
  2146.         break;
  2147.         case DIAMONDFILL:
  2148.         /*
  2149.         @ diamondfill x0,y0,dx,dy,color
  2150.         @ x0,y0 in xrange / yrange
  2151.         @ distances dx,dy in pixels
  2152.         */
  2153.             if( js_function[DRAW_DIAMONDFILL] != 1 ){ js_function[DRAW_DIAMONDFILL] = 1;}
  2154.             for(i=0;i<5;i++){
  2155.                 switch(i){
  2156.                     case 0: int_data[0] = x2px(get_real(infile,0)); break; /* x */
  2157.                     case 1: int_data[1] = y2px(get_real(infile,0)); break; /* y  */
  2158.                     case 2: int_data[2] = (int) (get_real(infile,0)); break; /* dx pixel */
  2159.                     case 3: int_data[3] = (int) (get_real(infile,0)); break; /* dy pixel*/
  2160.                     case 4: stroke_color = get_color(infile,1);
  2161.                     /* draw_hatchfill(ctx,x0,y0,dx,dy,linewidth,color,opacity,xsize,ysize) */
  2162.                     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);
  2163.                     check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  2164.                     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);
  2165.                     add_to_buffer(tmp_buffer);
  2166.                     break;
  2167.                     default:break;
  2168.                 }
  2169.             }
  2170.             reset();
  2171.         break;
  2172.         case GRIDFILL:
  2173.         /*
  2174.         @ gridfill x0,y0,dx,dy,color
  2175.         @ x0,y0 in xrange / yrange
  2176.         @ distances dx,dy in pixels
  2177.         */
  2178.             if( js_function[DRAW_GRIDFILL] != 1 ){ js_function[DRAW_GRIDFILL] = 1;}
  2179.             for(i=0;i<5;i++){
  2180.                 switch(i){
  2181.                     case 0: int_data[0] = x2px(get_real(infile,0)); break; /* x */
  2182.                     case 1: int_data[1] = y2px(get_real(infile,0)); break; /* y  */
  2183.                     case 2: int_data[2] = (int) (get_real(infile,0)); break; /* dx pixel */
  2184.                     case 3: int_data[3] = (int) (get_real(infile,0)); break; /* dy pixel*/
  2185.                     case 4: stroke_color = get_color(infile,1);
  2186.                     /* draw_gridfill(ctx,x0,y0,dx,dy,linewidth,color,opacity,xsize,ysize) */
  2187.                     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);
  2188.                     check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  2189.                     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);
  2190.                     add_to_buffer(tmp_buffer);
  2191.                     break;
  2192.                     default:break;
  2193.                 }
  2194.             }
  2195.             reset();
  2196.         break;
  2197.         case DOTFILL:
  2198.         /*
  2199.         @ dotfill x0,y0,dx,dy,color
  2200.         @ x0,y0 in xrange / yrange
  2201.         @ distances dx,dy in pixels
  2202.         @ radius of dots is linewidth
  2203.         */
  2204.             if( js_function[DRAW_DOTFILL] != 1 ){ js_function[DRAW_DOTFILL] = 1;}
  2205.             for(i=0;i<5;i++){
  2206.                 switch(i){
  2207.                     case 0: int_data[0] = x2px(get_real(infile,0)); break; /* x */
  2208.                     case 1: int_data[1] = y2px(get_real(infile,0)); break; /* y  */
  2209.                     case 2: int_data[2] = (int) (get_real(infile,0)); break; /* dx pixel */
  2210.                     case 3: int_data[3] = (int) (get_real(infile,0)); break; /* dy pixel*/
  2211.                     case 4: stroke_color = get_color(infile,1);
  2212.                     /* draw_dotfill(ctx,x0,y0,dx,dy,radius,color,opacity,xsize,ysize) */
  2213.                     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);
  2214.                     check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  2215.                     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);
  2216.                     add_to_buffer(tmp_buffer);
  2217.                     break;
  2218.                     default:break;
  2219.                 }
  2220.             }
  2221.             reset();
  2222.         break;
  2223.         case IMAGEFILL:
  2224.         /*
  2225.         @ imagefill dx,dy,image_url
  2226.         @ The next suitable <b>filled object</b> will be filled with "image_url" tiled
  2227.         @ After pattern filling ,the fill-color should be reset !
  2228.         @ wims getins / image from class directory : imagefill 80,80,my_image.gif
  2229.         @ normal url : imagefill 80,80,$module_dir/gifs/my_image.gif
  2230.         @ normal url : imagefill 80,80,http://adres/a/b/c/my_image.jpg
  2231.         @ if dx,dy is larger than the image, the whole image will be background to the next object.
  2232.         */
  2233.             if( js_function[DRAW_IMAGEFILL] != 1 ){ js_function[DRAW_IMAGEFILL] = 1;}
  2234.             for(i=0 ;i < 3 ; i++){
  2235.                 switch(i){
  2236.                     case 0:int_data[0] = (int) (get_real(infile,0));break;
  2237.                     case 1:int_data[1] = (int) (get_real(infile,0));break;
  2238.                     case 2: URL = get_string_argument(infile,1);
  2239.                             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);
  2240.                             check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  2241.                             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);
  2242.                             add_to_buffer(tmp_buffer);
  2243.                     break;
  2244.                 }
  2245.             }
  2246.         break;
  2247.         case FILLTOBORDER:
  2248.         /*
  2249.         @ filltoborder x,y,bordercolor,color
  2250.         @ fill the region  of point (x:y) bounded by 'bordercolor' with color 'color'
  2251.         @ any other color will not act as border to the bucket fill
  2252.         @ use this command  after all boundary objects are declared.
  2253.         @ 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..
  2254.         */
  2255.             for(i=0 ;i < 4 ; i++){
  2256.                 switch(i){
  2257.                     case 0:double_data[0] = get_real(infile,0);break;
  2258.                     case 1:double_data[1] = get_real(infile,0);break;
  2259.                     case 2:bgcolor = get_color(infile,0);break;
  2260.                     case 3:fill_color = get_color(infile,1);
  2261.                            if(js_function[DRAW_FILLTOBORDER] != 1 ){/* use only once */
  2262.                                 js_function[DRAW_FILLTOBORDER] = 1;
  2263.                                 add_js_filltoborder(js_include_file,canvas_root_id);
  2264.                            }
  2265.                            decimals = find_number_of_digits(precision);
  2266.                            string_length = snprintf(NULL,0,  "filltoborder(%.*f,%.*f,[%s,%d],[%s,%d]);\n",decimals,double_data[0],decimals,double_data[1],bgcolor,(int) (fill_opacity/0.0039215),fill_color,(int) (fill_opacity/0.0039215));
  2267.                            check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  2268.                            snprintf(tmp_buffer,string_length,"filltoborder(%.*f,%.*f,[%s,%d],[%s,%d]);\n",decimals,double_data[0],decimals,double_data[1],bgcolor,(int) (fill_opacity/0.0039215),fill_color,(int) (fill_opacity/0.0039215));
  2269.                            add_to_buffer(tmp_buffer);
  2270.                            break;
  2271.                     default:break;
  2272.                     }
  2273.                 }
  2274.         break;
  2275.         case FLOODFILL:
  2276.         /*
  2277.         @ floodfill x,y,color
  2278.         @ alternative syntax: fill x,y,color
  2279.         @ fill the region of point (x:y) with color 'color'
  2280.         @ any other color or size of picture (borders of picture) will act as border to the bucket fill
  2281.         @ use this command  after all boundary objects are declared.
  2282.         @ Use command 'clickfill,color' for user click driven flood fill.
  2283.         @ NOTE: recognised colour boundaries are in the "drag canvas" e.g. only for objects that can be set draggable / clickable
  2284.         @ 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..
  2285.         */
  2286.             for(i=0 ;i < 4 ; i++){
  2287.                 switch(i){
  2288.                     case 0:double_data[0] = get_real(infile,0);break;
  2289.                     case 1:double_data[1] = get_real(infile,0);break;
  2290.                     case 2:fill_color = get_color(infile,1);
  2291.                            if(js_function[DRAW_FLOODFILL] != 1 ){/* use only once */
  2292.                                 js_function[DRAW_FLOODFILL] = 1;
  2293.                                 add_js_floodfill(js_include_file,canvas_root_id);
  2294.                            }
  2295.                            decimals = find_number_of_digits(precision);/*floodfill(interaction,x,y,[R,G,B,A]) */
  2296.                            string_length = snprintf(NULL,0,  "floodfill(0,%.*f,%.*f,[%s,%d]);\n",decimals,double_data[0],decimals,double_data[1],fill_color,(int) (fill_opacity/0.0039215));
  2297.                            check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  2298.                            snprintf(tmp_buffer,string_length,"floodfill(0,%.*f,%.*f,[%s,%d]);\n",decimals,double_data[0],decimals,double_data[1],fill_color,(int) (fill_opacity/0.0039215));
  2299.                            add_to_buffer(tmp_buffer);
  2300.                            break;
  2301.                     default:break;
  2302.                     }
  2303.                 }
  2304.         break;
  2305.         case CLICKFILLMARGE:
  2306.             clickfillmarge = (int) (get_real(infile,1));
  2307.             break;
  2308.         /*
  2309.         @ clickfillmarge int
  2310.         @ default 20 (pixels)
  2311.         @ 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[])
  2312.         */
  2313.         case CLICKFILL:
  2314.         /*
  2315.         @ clickfill fillcolor
  2316.         @ user left mouse click will floodfill the area with fillcolor
  2317.         @ multiple areas may be coloured
  2318.         @ 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)
  2319.         @ the answer will be read as the (x:y) click coordinates per coloured area
  2320.         @ background color of main div may be set by using command "bgcolor color"
  2321.         @ may not be combined with command "userdraw"
  2322.         @ NOTE: recognised colour boundaries are in the "drag canvas" e.g. only for objects that can be set draggable / clickable
  2323.         */
  2324.          fill_color = get_color(infile,1);
  2325.          if(js_function[DRAW_FLOODFILL] != 1 ){/* use only once */
  2326.             js_function[DRAW_FLOODFILL] = 1;
  2327.             add_js_floodfill(js_include_file,canvas_root_id);
  2328.          }
  2329.          fprintf(js_include_file,"\n<!-- begin command clickfill -->\nvar marge_xy = %d;var userdraw_x = new Array();var 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);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));
  2330.          add_read_canvas(1);
  2331.         break;
  2332.         case SETPIXEL:
  2333.         /*
  2334.         @ setpixel x,y,color
  2335.         @ A "point" with diameter 1 pixel centeres at (x:y) in xrange / yrange
  2336.         @ pixels can not be dragged or clicked
  2337.         @ "pixelsize = 1" may be changed by command "pixelsize int"
  2338.         */
  2339.             if( js_function[DRAW_PIXELS] != 1 ){ js_function[DRAW_PIXELS] = 1;}
  2340.             for(i=0;i<3;i++){
  2341.                 switch(i){
  2342.                     case 0: double_data[0] = get_real(infile,0); break; /* x */
  2343.                     case 1: double_data[1] = get_real(infile,0); break; /* y  */
  2344.                     case 2: stroke_color = get_color(infile,1);
  2345.                            string_length = snprintf(NULL,0,"draw_setpixel([%f],[%f],\"%s\",%.2f,%d);\n",double_data[0],double_data[1],stroke_color,stroke_opacity,pixelsize);
  2346.                            check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  2347.                            snprintf(tmp_buffer,string_length,"draw_setpixel([%f],[%f],\"%s\",%.2f,%d);\n",double_data[0],double_data[1],stroke_color,stroke_opacity,pixelsize);
  2348.                            add_to_buffer(tmp_buffer);
  2349.                            break;
  2350.                     default:break;
  2351.                 }
  2352.             }
  2353.             reset();
  2354.         break;
  2355.         case PIXELSIZE:
  2356.         /*
  2357.         @ pixelsize int
  2358.         @ in case you want to deviate from default pixelsize = 1...
  2359.         */
  2360.             pixelsize = (int) get_real(infile,1);
  2361.         break;
  2362.         case PIXELS:
  2363.         /*
  2364.         @ pixels color,x1,y1,x2,y2,x3,y3...
  2365.         @ Draw  "points" with diameter 1 pixel
  2366.         @ pixels can not be dragged or clicked
  2367.         @ "pixelsize = 1" may be changed by command "pixelsize int"
  2368.         */
  2369.             if( js_function[DRAW_PIXELS] != 1 ){ js_function[DRAW_PIXELS] = 1;}
  2370.             stroke_color=get_color(infile,0);
  2371.             i=0;
  2372.             c=0;
  2373.             while( ! done ){     /* get next item until EOL*/
  2374.                 if(i > MAX_INT - 1){canvas_error("to many points in argument: repeat command multiple times to fit");}
  2375.                 for( c = 0 ; c < 2; c++){
  2376.                     if(c == 0 ){
  2377.                         double_data[i] = get_real(infile,0);
  2378.                         i++;
  2379.                     }
  2380.                     else
  2381.                     {
  2382.                         double_data[i] = get_real(infile,1);
  2383.                         i++;
  2384.                     }
  2385.                 }
  2386.             }
  2387.             decimals = find_number_of_digits(precision);
  2388.             /*  *double_xy2js_array(double xy[],int len,int decimals) */
  2389.             string_length = snprintf(NULL,0,  "draw_setpixel(%s,\"%s\",%.2f,%d);\n",double_xy2js_array(double_data,i,decimals),stroke_color,stroke_opacity,pixelsize);
  2390.             check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  2391.             snprintf(tmp_buffer,string_length,"draw_setpixel(%s,\"%s\",%.2f,%d);\n",double_xy2js_array(double_data,i,decimals),stroke_color,stroke_opacity,pixelsize);
  2392.             add_to_buffer(tmp_buffer);
  2393.             break;
  2394.         case REPLYFORMAT:
  2395.         /*
  2396.         @ replyformat number
  2397.         @ default values should be fine !
  2398.         @ 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></ul>
  2399.         @ note to 'userdraw text,color' : the x / y-values are in pixels ! (this to avoid too lengthy calculations in javascript...)
  2400.         */
  2401.          reply_format = (int) get_real(infile,1);
  2402.         break;
  2403.         case LEGENDCOLORS:
  2404.         /*
  2405.         @ legendcolors color1:color2:color3:...:color_n
  2406.         @ will be used to colour a legend
  2407.         @ make sure the number of colours match the number of legend items
  2408.         @ command 'legend' in case of 'piechart' and 'barchart' will use these colours per default (no need to specify 'legendcolors'
  2409.         */
  2410.             temp = get_string(infile,1);
  2411.             if( strstr( temp,":") != 0 ){ temp = str_replace(temp,":","\",\""); }
  2412.             fprintf(js_include_file,"var legendcolors%d = [\"%s\"];",canvas_root_id,temp);
  2413.             break;
  2414.         case LEGEND:
  2415.         /*
  2416.         @ legend string1:string2:string3....string_n
  2417.         @ will be used to create a legend for a graph
  2418.         @ also see command 'piechart'  
  2419.         */
  2420.             temp = get_string(infile,1);
  2421.             if( strstr( temp,":") != 0 ){ temp = str_replace(temp,":","\",\""); }
  2422.             fprintf(js_include_file,"var legend%d = [\"%s\"];",canvas_root_id,temp);
  2423.             break;
  2424.         case XLABEL:
  2425.         /*
  2426.         @ xlabel some_string
  2427.         @ will be used to create a label for the x-axis (label is in quadrant I)
  2428.         @ can only be used together with command 'grid'<br />not depending on keywords 'axis' and 'axisnumbering'
  2429.         @ font setting: italic Courier, fontsize will be slightly larger (fontsize + 4)
  2430.         */
  2431.             temp = get_string(infile,1);
  2432.             fprintf(js_include_file,"var xaxislabel = \"%s\";",temp);
  2433.             break;
  2434.         case YLABEL:
  2435.         /*
  2436.         @ ylabel some_string
  2437.         @ will be used to create a (vertical) label for the y-axis (label is in quadrant I)
  2438.         @ can only be used together with command 'grid'<br />not depending on keywords 'axis' and 'axisnumbering'
  2439.         @ font setting: italic Courier, fontsize will be slightly larger (fontsize + 4)
  2440.         */
  2441.             temp = get_string(infile,1);
  2442.             fprintf(js_include_file,"var yaxislabel = \"%s\";",temp);
  2443.             break;
  2444.         case LINEGRAPH: /* scheme: var linegraph_0 = [ 'stroke_color','line_width','use_dashed' ,'dashtype0','dashtype1','x1','y1',...,'x_n','y_n'];*/
  2445.         /*
  2446.         @ linegraph x1:y1;x2:y2...x_n:y;2
  2447.         @ will plot your data in a graph
  2448.         @ may only to be used together with command 'grid'
  2449.         @ can be used together with freestyle x-axis/y-axis texts : see commands 'xaxis' and 'yaxis'
  2450.         @ use command 'legend' to provide an optional legend in right-top-corner
  2451.         @ also see command 'piechart'
  2452.         @ multiple linegraphs may be used in a single plot
  2453.         @ <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>
  2454.         */    
  2455.             temp = get_string(infile,1);
  2456.             if( strstr( temp,":") != 0 ){ temp = str_replace(temp,":","\",\""); }
  2457.             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);
  2458.             linegraph_cnt++;
  2459.             reset();
  2460.             break;
  2461.         case CLOCK:
  2462.         /*
  2463.         @ clock x,y,r(px),H,M,S,type hourglass,interactive [ ,H_color,M_color,S_color,background_color,foreground_color ]
  2464.         @ type hourglass:<br />type = 0 : only segments<br />type = 1 : only numbers<br />type = 2 : numbers and segments
  2465.         @ 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
  2466.         @ 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>
  2467.         @ canvasdraw will not check validity of colornames...the javascript console is your best friend
  2468.         @ no combinations with other reply_types allowed, for now
  2469.         @ 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
  2470.         */
  2471.             if( js_function[DRAW_CLOCK] != 1 ){ js_function[DRAW_CLOCK] = 1;}
  2472.  
  2473.         /*    var clock = function(xc,yc,radius,H,M,S,h_color,m_color,s_color,bg_color,fg_color) */
  2474.             for(i=0;i<9;i++){
  2475.              switch(i){
  2476.               case 0: int_data[0] = x2px(get_real(infile,0)); break; /* xc */
  2477.               case 1: int_data[1] = y2px(get_real(infile,0)); break; /* yc */
  2478.               case 2: int_data[2] = get_real(infile,0);break;/* radius in px */
  2479.               case 3: int_data[3] = get_real(infile,0);break;/* hours */
  2480.               case 4: int_data[4] = get_real(infile,0);break;/* minutes */
  2481.               case 5: int_data[5] = get_real(infile,0);break;/* seconds */
  2482.               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 */
  2483.               case 7: int_data[7] = (int)(get_real(infile,0));/* interactive 0,1,2*/
  2484.                 switch(int_data[7]){
  2485.                     case 0:break;
  2486.                     case 1:if(clock_cnt == 0){
  2487.                                 if( reply_format == 0 ){
  2488.                                      reply_format = 18; /* user sets clock */
  2489.                                     /* 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");
  2490.                                      check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  2491.                                      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");
  2492.                                      add_to_buffer(tmp_buffer);
  2493.                                     */
  2494.                                      fprintf(js_include_file,"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");
  2495.                                 }
  2496.                                 else
  2497.                                 {
  2498.                                     canvas_error("interactive clock may not be used together with other reply_types...");
  2499.                                 }
  2500.                                 fprintf(stdout,"<br /><input type=\"button\" onclick=\"javascript:set_clock(%d,1,1)\" value=\"H+\" /><input type=\"button\" onclick=\"javascript:set_clock(%d,1,-1)\" value=\"H-\" /><input type=\"button\" onclick=\"javascript:set_clock(%d,2,1)\" value=\"M+\" /><input type=\"button\" onclick=\"javascript:set_clock(%d,2,-1)\" value=\"M-\" /><input type=\"button\" onclick=\"javascript:set_clock(%d,3,1)\" value=\"S+\" /><input type=\"button\" onclick=\"javascript:set_clock(%d,3,-1)\" value=\"S-\" /><br />",clock_cnt,clock_cnt,clock_cnt,clock_cnt,clock_cnt,clock_cnt);
  2501.                              }
  2502.                     break;
  2503.                     case 2:if( reply_format == 0 ){
  2504.                                 reply_format = 19; /* "onclick */
  2505.                                 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 = 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 = 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 ");
  2506.                             }
  2507.                             else
  2508.                             {
  2509.                                 if( reply_format != 19){
  2510.                                    canvas_error("clickable clock(s) may not be used together with other reply_types...");
  2511.                                  }
  2512.                             }
  2513.                      break;
  2514.                      default: canvas_error("interactive must be set 0,1 or 2");break;
  2515.                 }
  2516.                 break;
  2517.                 case 8:
  2518.                         temp = get_string(infile,1);
  2519.                         if( strstr( temp,",") != 0 ){ temp = str_replace(temp,",","\",\""); }
  2520.                         if( strlen(temp) < 1 ){temp = ",\"\",\"\",\"\",\"\",\"\"";}
  2521.                         string_length = snprintf(NULL,0,"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);
  2522.                         check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  2523.                         snprintf(tmp_buffer,string_length,"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);
  2524.                         add_to_buffer(tmp_buffer);
  2525.                         clock_cnt++;
  2526.                         break;
  2527.                 default:break;
  2528.              }
  2529.             }
  2530.             break;
  2531.         case BARCHART:
  2532.         /*
  2533.         @ barchart x_1:y_1:color_1:x_2:y_2:color_2:...x_n:y_n:color_n
  2534.         @ will be used to create a legend for bar graph
  2535.         @ may only to be used together with command 'grid'
  2536.         @ can be used together with freestyle x-axis/y-axis texts : see commands 'xaxis' and 'yaxis'
  2537.         @ use command 'legend' to provide an optional legend in right-top-corner
  2538.         @ also see command 'piechart'  
  2539.         */
  2540.             temp = get_string(infile,1);
  2541.             if( strstr( temp,":" ) != 0 ){ temp = str_replace(temp,":","\",\""); }
  2542.             fprintf(js_include_file,"var barchart%d = [\"%s\"];",canvas_root_id,temp);
  2543.             reset();
  2544.             break;
  2545.         case PIECHART:
  2546.         /*
  2547.         @ piechart xc,yc,radius,'data+colorlist'
  2548.         @ (xc : yc) center of circle diagram in xrange/yrange
  2549.         @ radius in pixels
  2550.         @ 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
  2551.         @ example data+colorlist : 132:red:23565:green:323:black:234324:orange:23434:yellow:2543:white
  2552.         @ the number of colors must match the number of data.
  2553.         @ use command "opacity 0-255,0-255" to adjust fill_opacity of colours
  2554.         @ 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...
  2555.         */
  2556.             if( js_function[DRAW_PIECHART] != 1 ){ js_function[DRAW_PIECHART] = 1;}    
  2557.             for(i=0;i<5;i++){
  2558.                 switch(i){
  2559.                     case 0: int_data[0] = x2px(get_real(infile,0)); break; /* x */
  2560.                     case 1: int_data[1] = y2px(get_real(infile,0)); break; /* y  */
  2561.                     case 2: int_data[2] = (int)(get_real(infile,1));break;/* radius*/
  2562.                     case 3: temp = get_string(infile,1);
  2563.                             if( strstr( temp, ":" ) != 0 ){ temp = str_replace(temp,":","\",\"");}
  2564.                             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,font_size,font_family);
  2565.                             check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  2566.                             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,font_size,font_family);
  2567.                             add_to_buffer(tmp_buffer);
  2568.                            break;
  2569.                     default:break;
  2570.                 }
  2571.             }
  2572.             reset();
  2573.         break;
  2574.         case STATUS:
  2575.             fprintf(js_include_file,"\nstatus=\"waiting\";\n");
  2576.             break;
  2577.         case XLOGBASE:
  2578.         /*
  2579.         @ xlogbase number
  2580.         @ sets the logbase number for the x-axis
  2581.         @ default value 10
  2582.         @ use together with commands xlogscale / xylogscale
  2583.         */
  2584.             fprintf(js_include_file,"xlogbase=%d;",(int)(get_real(infile,1)));
  2585.             break;
  2586.         case YLOGBASE:
  2587.         /*
  2588.         @ ylogbase number
  2589.         @ sets the logbase number for the y-axis
  2590.         @ default value 10
  2591.         @ use together with commands ylogscale / xylogscale
  2592.         */
  2593.             fprintf(js_include_file,"ylogbase=%d;",(int)(get_real(infile,1)));
  2594.             break;
  2595.         case XLOGSCALE:
  2596.         /*
  2597.          @ xlogscale ymajor,yminor,majorcolor,minorcolor
  2598.          @ the x/y-range are set using commands 'xrange xmin,xmax' and 'yrange ymin,ymax'
  2599.          @ ymajor is the major step on the y-axis; yminor is the divisor for the y-step
  2600.          @ the linewidth is set using command 'linewidth int'
  2601.          @ the opacity of major / minor grid lines is set by command 'opacity [0-255],[0-255]'
  2602.          @ default logbase number = 10 ... when needed , set the logbase number with command 'xlogbase number'
  2603.          @ 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>
  2604.          @ note: the complete canvas will be used for the 'log paper'
  2605.          @ note: userdrawings are done in the log paper, e.g. javascript:read_canvas() will return the real values
  2606.          @ note: command 'mouse color,fontsize' will show the real values in the logpaper.<br />\
  2607.          @ 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')  
  2608.          @ note: in case of userdraw , the use of keyword 'userinput_xy' may be handy !
  2609.          @ attention: keyword 'snaptogrid' may not lead to the desired result...
  2610.         */
  2611.             if( js_function[DRAW_GRID] == 1 ){canvas_error("only one type of grid is allowed...");}
  2612.             if( js_function[DRAW_XLOGSCALE] != 1 ){ js_function[DRAW_XLOGSCALE] = 1;}
  2613.             for(i=0;i<4;i++){
  2614.                 switch(i){
  2615.                     case 0: double_data[0] = get_real(infile,0);break; /* xmajor */
  2616.                     case 1: int_data[0] = (int) (get_real(infile,0));break; /* xminor */
  2617.                     case 2: stroke_color = get_color(infile,0); break;
  2618.                     case 3: fill_color = get_color(infile,1);
  2619.                         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);
  2620.                         tmp_buffer = my_newmem(string_length+1);
  2621.                         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);
  2622.                         fprintf(js_include_file,"use_xlogscale=1;snap_y = %f;snap_x = xlogbase;",double_data[0]/int_data[0]);
  2623.                         add_to_buffer(tmp_buffer);
  2624.                         break;
  2625.                     default:break;
  2626.                 }
  2627.             }
  2628.             break;
  2629.         case YLOGSCALE:
  2630.         /*
  2631.          @ ylogscale xmajor,xminor,majorcolor,minorcolor
  2632.          @ the x/y-range are set using commands 'xrange xmin,xmax' and 'yrange ymin,ymax'
  2633.          @ xmajor is the major step on the x-axis; xminor is the divisor for the x-step
  2634.          @ the linewidth is set using command 'linewidth int'
  2635.          @ the opacity of major / minor grid lines is set by command 'opacity [0-255],[0-255]'
  2636.          @ default logbase number = 10 ... when needed , set the logbase number with command 'ylogbase number'
  2637.          @ 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>
  2638.          @ note: the complete canvas will be used for the 'log paper'
  2639.          @ note: userdrawings are done in the log paper, e.g. javascript:read_canvas() will return the real values
  2640.          @ note: command 'mouse color,fontsize' will show the real values in the logpaper.<br />\
  2641.          @ 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')  
  2642.          @ note: in case of userdraw , the use of keyword 'userinput_xy' may be handy !
  2643.          @ attention: keyword 'snaptogrid' may not lead to the desired result...
  2644.         */
  2645.             if( js_function[DRAW_GRID] == 1 ){canvas_error("only one type of grid is allowed...");}
  2646.             if( js_function[DRAW_YLOGSCALE] != 1 ){ js_function[DRAW_YLOGSCALE] = 1;}
  2647.             for(i=0;i<4;i++){
  2648.                 switch(i){
  2649.                     case 0: double_data[0] = get_real(infile,0);break; /* xmajor */
  2650.                     case 1: int_data[0] = (int) (get_real(infile,0));break; /* xminor */
  2651.                     case 2: stroke_color = get_color(infile,0); break;
  2652.                     case 3: fill_color = get_color(infile,1);
  2653.                         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);
  2654.                         tmp_buffer = my_newmem(string_length+1);
  2655.                         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);
  2656.                         fprintf(js_include_file,"use_ylogscale=1;snap_x = %f;snap_y = ylogbase;",double_data[0]/int_data[0]);
  2657.                         add_to_buffer(tmp_buffer);
  2658.                         break;
  2659.                     default:break;
  2660.                 }
  2661.             }
  2662.             break;
  2663.         case XYLOGSCALE:
  2664.         /*
  2665.          @ xylogscale majorcolor,minorcolor
  2666.          @ the x/y-range are set using commands 'xrange xmin,xmax' and 'yrange ymin,ymax'
  2667.          @ the linewidth is set using command 'linewidth int'
  2668.          @ the opacity of major / minor grid lines is set by command 'opacity [0-255],[0-255]'
  2669.          @ default logbase number = 10 ... when needed , set the logbase number with command 'xlogbase number' and/or 'ylogbase number'
  2670.          @ 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>
  2671.          @ note: the complete canvas will be used for the 'log paper'
  2672.          @ note: userdrawings are done in the log paper, e.g. javascript:read_canvas() will return the real values
  2673.          @ note: command 'mouse color,fontsize' will show the real values in the logpaper.<br />\
  2674.          @ 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')  
  2675.          @ note: in case of userdraw , the use of keyword 'userinput_xy' may be handy !
  2676.          @ attention: keyword 'snaptogrid' may not lead to the desired result...
  2677.         */
  2678.             if( js_function[DRAW_GRID] == 1 ){canvas_error("only one type of grid is allowed...");}
  2679.             if( js_function[DRAW_XYLOGSCALE] != 1 ){ js_function[DRAW_XYLOGSCALE] = 1;}
  2680.             for(i=0;i<2;i++){
  2681.                 switch(i){
  2682.                     case 0: stroke_color = get_color(infile,0); break;
  2683.                     case 1: fill_color = get_color(infile,1);
  2684.                         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);
  2685.                         tmp_buffer = my_newmem(string_length+1);
  2686.                         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);
  2687.                         fprintf(js_include_file,"use_xlogscale=1;use_ylogscale=1;snap_x = xlogbase;snap_y = ylogbase;");
  2688.                         add_to_buffer(tmp_buffer);
  2689.                         break;
  2690.                     default:break;
  2691.                 }
  2692.             }
  2693.         break;
  2694.         default:sync_input(infile);
  2695.         break;
  2696.     }
  2697.   }
  2698.   /* we are done parsing script file */
  2699.  
  2700.   /* if needed, add generic draw functions (grid / xml etc) to buffer : these are no draggable shapes / objects  ! */
  2701.   add_javascript_functions(js_function,canvas_root_id);
  2702.    /* add read_canvas() etc functions if needed */
  2703.   if( reply_format > 0 ){ add_read_canvas(reply_format);}
  2704.   /* using mouse coordinate display ? */
  2705.   if( use_mouse_coordinates == TRUE ){
  2706.     tmp_buffer = my_newmem(26);
  2707.     snprintf(tmp_buffer,25,"use_mouse_coordinates();\n");add_to_buffer(tmp_buffer);
  2708.   }
  2709.   if( use_pan_and_zoom == TRUE ){
  2710.   /* in case of zooming ... */
  2711.   fprintf(js_include_file,"\n<!-- some extra global stuff : need to rethink panning and zooming !!! -->\n\
  2712.  precision = %d;var xmin_start=xmin;var xmax_start=xmax;\
  2713.  var ymin_start=ymin;var ymax_start=xmax;\
  2714.  var zoom_x_increment=0;var zoom_y_increment=0;\
  2715.  var pan_x_increment=0;var pan_y_increment=0;\
  2716.  if(use_ylogscale == 0 ){\
  2717.   zoom_x_increment = (xmax - xmin)/20;zoom_y_increment = (xmax - xmin)/20;pan_x_increment = (xmax - xmin)/20;pan_y_increment = (ymax - ymin)/20;\
  2718.  }else{\
  2719.   zoom_x_increment = (xmax - xmin)/20;\
  2720.   pan_x_increment = (xmax - xmin)/20;\
  2721.  };\
  2722.  function start_canvas%d(type){\
  2723.   switch(type){\
  2724.    case 0:xmin = xmin + zoom_x_increment;ymin = ymin + zoom_y_increment;xmax = xmax - zoom_x_increment;ymax = ymax - zoom_y_increment;break;\
  2725.    case 1:xmin = xmin - zoom_x_increment;ymin = ymin - zoom_y_increment;xmax = xmax + zoom_x_increment;ymax = ymax + zoom_y_increment;break;\
  2726.    case 2:xmin = xmin - pan_x_increment;ymin = ymin ;xmax = xmax - pan_x_increment;ymax = ymax;break;\
  2727.    case 3:xmin = xmin + pan_x_increment;ymin = ymin ;xmax = xmax + pan_x_increment;ymax = ymax;break;\
  2728.    case 4:xmin = xmin;ymin = ymin - pan_y_increment ;xmax = xmax;ymax = ymax - pan_y_increment;break;\
  2729.    case 5:xmin = xmin;ymin = ymin + pan_y_increment ;xmax = xmax;ymax = ymax + pan_y_increment;break;\
  2730.    case 6:location.reload();break;\
  2731.    default:break;\
  2732.   };\
  2733.   if(xmax<=xmin){xmin=xmin_start;xmax=xmax_start;};\
  2734.   if(ymax<=ymin){ymin=ymin_start;ymax=ymax_start;};\
  2735.   try{dragstuff.Zoom(xmin,xmax,ymin,ymax);}catch(e){}\
  2736.   %s\
  2737.  };\
  2738.  start_canvas%d(333);\
  2739. };\n\
  2740. <!-- end wims_canvas_function -->\n\
  2741. wims_canvas_function%d();\n",precision,canvas_root_id,buffer,canvas_root_id,canvas_root_id);
  2742.   }
  2743.   else
  2744.   {
  2745.   /* no zoom, just add buffer */
  2746.   fprintf(js_include_file,"\n<!-- add buffer -->\n\
  2747.  %s\
  2748. };\n\
  2749. <!-- end wims_canvas_function -->\n\
  2750. wims_canvas_function%d();\n",buffer,canvas_root_id);
  2751.   }
  2752. /* done writing the javascript include file */
  2753. fclose(js_include_file);
  2754.  
  2755. }
  2756.  
  2757. /* if using a tooltip, this should always be printed to the *.phtml file, so stdout */
  2758. if(use_tooltip == TRUE){
  2759.   add_js_tooltip(canvas_root_id,tooltip_text,bgcolor,xsize,ysize);
  2760. }
  2761. exit(EXIT_SUCCESS);
  2762. }
  2763. /* end main() */
  2764.  
  2765. /******************************************************************************
  2766. **
  2767. **  sync_input
  2768. **
  2769. **  synchronises input line - reads to end of line, leaving file pointer
  2770. **  at first character of next line.
  2771. **
  2772. **  Used by:
  2773. **  main program - error handling.
  2774. **
  2775. ******************************************************************************/
  2776. void sync_input(FILE *infile)
  2777. {
  2778.         int c = 0;
  2779.  
  2780.         if( c == '\n' || c == ';' ) return;
  2781.         while( ( (c=getc(infile)) != EOF ) && (c != '\n') && (c != '\r') && (c != ';')) ;
  2782.         if( c == EOF ) finished = 1;
  2783.         if( c == '\n' || c == '\r' || c == ';') line_number++;
  2784.         return;
  2785. }
  2786.  
  2787. /******************************************************************************/
  2788.  
  2789. char *str_replace(const char *str, const char *old, const char *new){
  2790. /* http://creativeandcritical.net/str-replace-c/ */
  2791.     if(strlen(str) > MAX_BUFFER){canvas_error("string argument too big");}
  2792.     char *ret, *r;
  2793.     const char *p, *q;
  2794.     size_t oldlen = strlen(old);
  2795.     size_t count = 0;
  2796.     size_t retlen = 0;
  2797.     size_t newlen = strlen(new);
  2798.     if (oldlen != newlen){
  2799.         for (count = 0, p = str; (q = strstr(p, old)) != NULL; p = q + oldlen){
  2800.             count++;
  2801.             retlen = p - str + strlen(p) + count * (newlen - oldlen);
  2802.         }
  2803.     }
  2804.     else
  2805.     {
  2806.         retlen = strlen(str);
  2807.     }
  2808.    
  2809.     if ((ret = malloc(retlen + 1)) == NULL){
  2810.         ret = NULL;
  2811.         canvas_error("string argument is NULL");
  2812.     }
  2813.     else
  2814.     {
  2815.         for (r = ret, p = str; (q = strstr(p, old)) != NULL; p = q + oldlen) {
  2816.             size_t l = q - p;
  2817.             memcpy(r, p, l);
  2818.             r += l;
  2819.             memcpy(r, new, newlen);
  2820.             r += newlen;
  2821.         }
  2822.         strcpy(r, p);
  2823.     }
  2824.     return ret;
  2825. }
  2826.  
  2827. /******************************************************************************/
  2828. /*
  2829. avoid the use of ctypes.h for tolower() toupper();
  2830. it gives trouble in FreeBSD 9.0 / 9.1 when used in a chroot environment (C library bug) : Undefined symbol "_ThreadRuneLocale"
  2831. Upper case -> Lower case : c = c - 'A'+ 'a';
  2832. Lower case ->  Upper case  c = c + 'A'  - 'a';
  2833. */
  2834. int tolower(int c){
  2835.  if(c <= 'Z'){
  2836.   if (c >= 'A'){
  2837.    return c - 'A' + 'a';
  2838.   }
  2839.  }
  2840.  return c;
  2841. }
  2842.  
  2843. int toupper(int c){
  2844.  if(c >= 'a' && c <= 'z'){
  2845.    return c + 'A' - 'a';
  2846.  }
  2847.  return c;
  2848. }
  2849.  
  2850. char *get_color(FILE *infile , int last){
  2851.     int c,i = 0,is_hex = 0;
  2852.     char temp[MAX_COLOR_STRING], *string;
  2853.     while(( (c=getc(infile)) != EOF ) && ( c != '\n') && ( c != ',' ) && ( c != ';' ) ){
  2854.         if( i > MAX_COLOR_STRING ){ canvas_error("colour string is too big ... ? ");}
  2855.         if( c == '#' ){
  2856.             is_hex = 1;
  2857.         }
  2858.         if( c != ' '){
  2859.             temp[i]=tolower(c);
  2860.             i++;
  2861.         }
  2862.     }
  2863.     if( ( c == '\n' || c == EOF || c == ';' ) && last == 0){canvas_error("expecting more arguments in command");}
  2864.     if( c == '\n' || c == ';' ){ done = TRUE; line_number++; }
  2865.     if( c == EOF ){finished = 1;}
  2866.     if( finished == 1 && last != 1 ){ canvas_error("expected more arguments");}
  2867.     temp[i]='\0';
  2868.     if( strlen(temp) == 0 ){ canvas_error("expected a colorname or hexnumber, but found nothing !!");}
  2869.     if( is_hex == 1 ){
  2870.         char red[3], green[3], blue[3];
  2871.         red[0]   = toupper(temp[1]); red[1]   = toupper(temp[2]); red[2]   = '\0';
  2872.         green[0] = toupper(temp[3]); green[1] = toupper(temp[4]); green[2] = '\0';
  2873.         blue[0]  = toupper(temp[5]); blue[1]  = toupper(temp[6]); blue[2]  = '\0';
  2874.         int r = (int) strtol(red,   NULL, 16);
  2875.         int g = (int) strtol(green, NULL, 16);
  2876.         int b = (int) strtol(blue,  NULL, 16);
  2877.         string = (char *)my_newmem(12);
  2878.         snprintf(string,11,"%d,%d,%d",r,g,b);
  2879.         return string;
  2880.     }
  2881.     else
  2882.     {
  2883.         string = (char *)my_newmem(sizeof(temp));
  2884.         snprintf(string,sizeof(temp),"%s",temp);
  2885.         for( i = 0; i <= NUMBER_OF_COLORNAMES ; i++ ){
  2886.             if( strcmp( colors[i].name , string ) == 0 ){
  2887.                 return colors[i].rgb;
  2888.             }
  2889.         }
  2890.     }
  2891.     /* not found...return error */
  2892.     free(string);string = NULL;
  2893.     canvas_error("I was expecting a color name or hexnumber...but found nothing.");
  2894.     return NULL;
  2895. }
  2896.  
  2897. char *get_string(FILE *infile,int last){ /* last = 0 : more arguments ; last=1 final argument */
  2898.     int c,i=0;
  2899.     char  temp[MAX_BUFFER], *string;
  2900.     while(( (c=getc(infile)) != EOF ) && ( c != '\n') ){
  2901.         temp[i]=c;
  2902.         i++;
  2903.         if(i > MAX_BUFFER){ canvas_error("string size too big...repeat command to fit string");break;}
  2904.     }
  2905.     if( ( c == '\n' || c == EOF ) && last == 0){canvas_error("expecting more arguments in command");}
  2906.     if( c == '\n') { done = TRUE; line_number++; }
  2907.     if( c == EOF ) {
  2908.         finished = 1;
  2909.         if( last != 1 ){ canvas_error("expected more arguments");}
  2910.     }
  2911.     temp[i]='\0';
  2912.     if( strlen(temp) == 0 ){ canvas_error("expected a word or string, but found nothing !!");}
  2913.     string=(char *)my_newmem(strlen(temp));
  2914.     snprintf(string,sizeof(temp),"%s",temp);
  2915.     return string;
  2916. }
  2917.  
  2918. char *get_string_argument(FILE *infile,int last){  /* last = 0 : more arguments ; last=1 final argument */
  2919.     int c,i=0;
  2920.     char temp[MAX_BUFFER], *string;
  2921.     while(( (c=getc(infile)) != EOF ) && ( c != '\n') && ( c != ',')){
  2922.         temp[i]=c;
  2923.         i++;
  2924.         if(i > MAX_BUFFER){ canvas_error("string size too big...will cut it off");break;}
  2925.     }
  2926.     if( ( c == '\n' || c == EOF) && last == 0){canvas_error("expecting more arguments in command");}
  2927.     if( c == '\n') { line_number++; }
  2928.     if( c == EOF ) {finished = 1;}
  2929.     if( finished == 1 && last != 1 ){ canvas_error("expected more arguments");}
  2930.     temp[i]='\0';
  2931.     if( strlen(temp) == 0 ){ canvas_error("expected a word or string (without comma) , but found nothing !!");}
  2932.     string=(char *)my_newmem(sizeof(temp));
  2933.     snprintf(string,sizeof(temp),"%s",temp);
  2934.     done = TRUE;
  2935.     return string;
  2936. }
  2937.  
  2938. double get_real(FILE *infile, int last){ /* accept anything that looks like an number ?  last = 0 : more arguments ; last=1 final argument */
  2939.     int c,i=0,found_calc = 0;
  2940.     double y;
  2941.     char tmp[MAX_INT];
  2942.     while(( (c=getc(infile)) != EOF ) && ( c != ',') && (c != '\n') && ( c != ';')){
  2943.      if( c != ' ' ){
  2944.      /*
  2945.      libmatheval will segfault when for example: "xrange -10,+10" or "xrange -10,10+" is used
  2946.      We will check after assert() if it's a NULL pointer...and exit program via :
  2947.      canvas_error("I'm having trouble parsing your \"expression\" ");
  2948.      */
  2949.       if( i == 0 &&  c == '+' ){
  2950.        continue;
  2951.       }
  2952.       else
  2953.       {
  2954.        if(canvas_iscalculation(c) != 0){
  2955.         found_calc = 1;
  2956.         c = tolower(c);
  2957.        }
  2958.        tmp[i] = c;
  2959.        i++;
  2960.       }
  2961.      }
  2962.      if( i > MAX_INT - 1){canvas_error("number too large");}
  2963.     }
  2964.     if( ( c == '\n' || c == EOF || c == ';' ) && last == 0){canvas_error("expecting more arguments in command");}
  2965.     if( c == '\n' || c == ';' ){ done = TRUE; line_number++; }
  2966.     if( c == EOF ){done = TRUE ; finished = 1;}
  2967.     tmp[i]='\0';
  2968.     if( strlen(tmp) == 0 ){canvas_error("expected a number , but found nothing !!");}
  2969.     if( found_calc == 1 ){ /* use libmatheval to calculate 2*pi/3 */
  2970.      void *f = evaluator_create(tmp);
  2971.      assert(f);if( f == NULL ){canvas_error("I'm having trouble parsing your \"expression\" ") ;}
  2972.      y = evaluator_evaluate_x(f, 1);
  2973.      /* if function is bogus; y = 1 : so no core dumps */
  2974.      evaluator_destroy(f);
  2975.     }
  2976.     else
  2977.     {
  2978.      y = atof(tmp);
  2979.     }
  2980.     return y;
  2981. }
  2982. void canvas_error(char *msg){
  2983.     fprintf(stdout,"\n</script><hr /><span style=\"color:red\">FATAL syntax error:line %d : %s</span><hr />",line_number-1,msg);
  2984.     finished = 1;
  2985.     exit(EXIT_SUCCESS);
  2986. }
  2987.  
  2988.  
  2989. /* convert x/y coordinates to pixel */
  2990. int x2px(double x){
  2991.  return x*xsize/(xmax - xmin) -  xsize*xmin/(xmax - xmin);
  2992. }
  2993.  
  2994. int y2px(double y){
  2995.  return -1*y*ysize/(ymax - ymin) + ymax*ysize/(ymax - ymin);
  2996. }
  2997.  
  2998. double px2x(int x){
  2999.  return (x*(xmax - xmin)/xsize + xmin);
  3000. }
  3001. double px2y(int y){
  3002.  return (y*(ymax - ymin)/ysize + ymin);
  3003. }
  3004.  
  3005. void add_to_buffer(char *tmp){
  3006.  if( tmp == NULL || tmp == 0 ){ canvas_error("nothing to add_to_buffer()...");}
  3007.  /*  do we have enough space left in buffer[MAX_BUFFER] ? */
  3008.  int space_left = (int) (sizeof(buffer) - strlen(buffer));
  3009.  if( space_left > strlen(tmp)){
  3010.   strncat(buffer,tmp,space_left - 1);/* add safely "tmp" to the string buffer */
  3011.  }
  3012.  else
  3013.  {
  3014.   canvas_error("buffer is too big\n");
  3015.  }
  3016.  tmp = NULL;free(tmp);
  3017.  return;
  3018. }
  3019.  
  3020. void reset(){
  3021.  if(use_filled == TRUE){use_filled = FALSE;}
  3022.  if(use_dashed == TRUE){use_dashed = FALSE;}
  3023.  if(use_translate == TRUE){use_translate = FALSE;}
  3024.  if(use_rotate == TRUE){use_rotate = FALSE;}
  3025.  onclick = 0;
  3026. }
  3027.  
  3028.  
  3029.  
  3030. /* What reply format in read_canvas();
  3031.  
  3032. note:if userdraw is combined with inputfields...every "userdraw" based answer will append "\n" and  inputfield.value()
  3033. 1 = x1,x2,x3,x4....x_n
  3034.     y1,y2,y3,y4....y_n
  3035.  
  3036.     x/y in pixels
  3037.  
  3038. 2 = x1,x2,x3,x4....x_n
  3039.     y1,y2,y3,y4....y_n
  3040.     x/y in  xrange / yrange coordinate system
  3041.  
  3042. 3 = x1,x2,x3,x4....x_n
  3043.     y1,y2,y3,y4....y_n
  3044.     r1,r2,r3,r4....r_n
  3045.  
  3046.     x/y in pixels
  3047.     r in pixels
  3048.  
  3049. 4 = x1,x2,x3,x4....x_n
  3050.     y1,y2,y3,y4....y_n
  3051.     r1,r2,r3,r4....r_n
  3052.  
  3053.     x/y in  xrange / yrange coordinate system
  3054.     r in pixels
  3055.  
  3056. 5 = Ax1,Ax2,Ax3,Ax4....Ax_n
  3057.     Ay1,Ay2,Ay3,Ay4....Ay_n
  3058.     Bx1,Bx2,Bx3,Bx4....Bx_n
  3059.     By1,By2,By3,By4....By_n
  3060.     Cx1,Cx2,Cx3,Cx4....Cx_n
  3061.     Cy1,Cy2,Cy3,Cy4....Cy_n
  3062.     ....
  3063.     Zx1,Zx2,Zx3,Zx4....Zx_n
  3064.     Zy1,Zy2,Zy3,Zy4....Zy_n
  3065.    
  3066.     x/y in pixels
  3067.  
  3068. 6 = Ax1,Ax2,Ax3,Ax4....Ax_n
  3069.     Ay1,Ay2,Ay3,Ay4....Ay_n
  3070.     Bx1,Bx2,Bx3,Bx4....Bx_n
  3071.     By1,By2,By3,By4....By_n
  3072.     Cx1,Cx2,Cx3,Cx4....Cx_n
  3073.     Cy1,Cy2,Cy3,Cy4....Cy_n
  3074.     ....
  3075.     Zx1,Zx2,Zx3,Zx4....Zx_n
  3076.     Zy1,Zy2,Zy3,Zy4....Zy_n
  3077.  
  3078.     x/y in  xrange / yrange coordinate system
  3079.    
  3080. 7 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n
  3081.    
  3082.     x/y in pixels
  3083.  
  3084. 8 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n
  3085.    
  3086.     x/y in  xrange / yrange coordinate system
  3087.  
  3088. 9 = x1:y1:r1,x2:y2:r2,x3:y3:r3,x4:y4:r3...x_n:y_n:r_n    
  3089.  
  3090.     x/y in pixels
  3091.  
  3092. 10 = x1:y1:r1,x2:y2:r2,x3:y3:r3,x4:y4:r3...x_n:y_n:r_n    
  3093.  
  3094.     x/y in  xrange / yrange coordinate system
  3095.  
  3096. 11 = Ax1,Ay1,Ax2,Ay2
  3097.      Bx1,By1,Bx2,By2
  3098.      Cx1,Cy1,Cx2,Cy2
  3099.      Dx1,Dy1,Dx2,Dy2
  3100.      ......
  3101.      Zx1,Zy1,Zx2,Zy2
  3102.      
  3103.     x/y in  xrange / yrange coordinate system
  3104.  
  3105. 12 = Ax1,Ay1,Ax2,Ay2
  3106.      Bx1,By1,Bx2,By2
  3107.      Cx1,Cy1,Cx2,Cy2
  3108.      Dx1,Dy1,Dx2,Dy2
  3109.      ......
  3110.      Zx1,Zy1,Zx2,Zy2
  3111.      
  3112.     x/y in pixels
  3113.  
  3114. 13 = Ax1:Ay1:Ax2:Ay2,Bx1:By1:Bx2:By2,Cx1:Cy1:Cx2:Cy2,Dx1:Dy1:Dx2:Dy2, ... ,Zx1:Zy1:Zx2:Zy2
  3115.  
  3116.     x/y in  xrange / yrange coordinate system
  3117. 14 = Ax1:Ay1:Ax2:Ay2,Bx1:By1:Bx2:By2....Zx1:Zy1:Zx2:Zy2
  3118.     x/y in pixels
  3119. 15 = reply from inputfields,textareas
  3120.     reply1,reply2,reply3,...,reply_n
  3121.  
  3122. 16 = read mathml inputfields only
  3123.  
  3124. 17 = read userdraw text only (x1:y1:text1,x2:y2:text2...x_n:y_n:text_n
  3125.  when ready : calculate size_t of string via snprintf(NULL,0,"blah blah...");
  3126.  
  3127. 18 = read clock(s) : H1:M1:S1,H2:M2:S2,...H_n:M_n:S_n
  3128. 19 = return clicked object number (analogue to shape-library onclick)
  3129. 20 = return x/y-data in x-range/y-range of all 'draggable' images
  3130. 21 = return verbatim coordinates (x1:y1) (x2:y2)...(x_n:y_n)
  3131. 22 = array : x1,y1,x2,y2,x3,y3,x4,y4...x_n,y_n
  3132.     x/y in  xrange / yrange coordinate system
  3133. 23 = answertype for a polyline : remove multiple occurences  due to reclick on a point to create next polyline segment
  3134. */
  3135.  
  3136.  
  3137. void add_read_canvas(int type_reply){
  3138. /* just 1 reply type allowed */
  3139. switch(type_reply){
  3140. /*  TO DO
  3141. !!!!  NEED TO SIMPLIFY !!!!  
  3142. answers may have:
  3143. x-values,y-values,r-values,input-fields,mathml-inputfields,text-typed answers
  3144. */
  3145.     case 1: fprintf(js_include_file,"\
  3146. \n<!-- begin function 1 read_canvas() -->\n\
  3147. function read_canvas(){\
  3148. if( userdraw_x.length == 0){alert(\"nothing drawn...\");return;}\
  3149. if( document.getElementById(\"canvas_input0\") || document.getElementById(\"mathml0\") ){\
  3150.  var p = 0;var input_reply = new Array();\
  3151.  if( document.getElementById(\"canvas_input0\")){\
  3152.   var t = 0;\
  3153.   while(document.getElementById(\"canvas_input\"+t)){\
  3154.    if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
  3155.     input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
  3156.     p++;\
  3157.    };\
  3158.    t++;\
  3159.   };\
  3160.  };\
  3161.  if( typeof userdraw_text != 'undefined' ){\
  3162.   return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+input_reply + \"\\n\"+userdraw_text;\
  3163.  }\
  3164.  else\
  3165.  {\
  3166.   return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+input_reply;\
  3167.  }\
  3168. }\
  3169. else\
  3170. {\
  3171.  if( typeof userdraw_text != 'undefined' ){\
  3172.   return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+userdraw_text;\
  3173.  }\
  3174.  else\
  3175.  {\
  3176.   return userdraw_x+\"\\n\"+userdraw_y;\
  3177.  }\
  3178. };\
  3179. };\
  3180. this.read_canvas = read_canvas;\n\
  3181. <!-- end function 1 read_canvas() -->");
  3182.     break;
  3183.     case 2: fprintf(js_include_file,"\
  3184. \n<!-- begin function 2 read_canvas() -->\n\
  3185. function read_canvas(){\
  3186. if( userdraw_x.length == 0){alert(\"nothing drawn...\");return;}\
  3187. var reply_x = new Array();var reply_y = new Array();var p = 0;\
  3188. while(userdraw_x[p]){\
  3189.  reply_x[p] = px2x(userdraw_x[p]);\
  3190.  reply_y[p] = px2y(userdraw_y[p]);\
  3191.  p++;\
  3192. };\
  3193. if(p == 0){alert(\"nothing drawn...\");return;};\
  3194. if( document.getElementById(\"canvas_input0\")){\
  3195.  var p = 0;var input_reply = new Array();\
  3196.  if( document.getElementById(\"canvas_input0\")){\
  3197.   var t = 0;\
  3198.   while(document.getElementById(\"canvas_input\"+t)){\
  3199.    if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
  3200.     input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
  3201.     p++;\
  3202.    };\
  3203.    t++;\
  3204.   };\
  3205.  };\
  3206.  if( typeof userdraw_text != 'undefined' ){\
  3207.   return reply_x+\"\\n\"+reply_y+\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
  3208.  }\
  3209.  else\
  3210.  {\
  3211.   return reply_x+\"\\n\"+reply_y+\"\\n\"+input_reply;\
  3212.  }\
  3213. }\
  3214. else\
  3215. {\
  3216.  if( typeof userdraw_text != 'undefined' ){\
  3217.   return reply_x+\"\\n\"+reply_y+\"\\n\"+userdraw_text;\
  3218.  }\
  3219.  else\
  3220.  {\
  3221.   return reply_x+\"\\n\"+reply_y;\
  3222.  };\
  3223. };\
  3224. };\
  3225. this.read_canvas = read_canvas;\n\
  3226. <!-- end function 2 read_canvas() -->");
  3227.     break;
  3228.     case 3: fprintf(js_include_file,"\
  3229. \n<!-- begin function 3 read_canvas() -->\n\
  3230. function read_canvas(){\
  3231. if( userdraw_x.length == 0){alert(\"nothing drawn...\");return;}\
  3232. if( document.getElementById(\"canvas_input0\") || document.getElementById(\"mathml0\") ){\
  3233.  var p = 0;var input_reply = new Array();\
  3234.  if( document.getElementById(\"canvas_input0\")){\
  3235.   var t = 0;\
  3236.   while(document.getElementById(\"canvas_input\"+t)){\
  3237.    if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
  3238.     input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
  3239.     p++;\
  3240.    };\
  3241.    t++;\
  3242.   };\
  3243.  };\
  3244.  if( typeof userdraw_text != 'undefined' ){\
  3245.   return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+userdraw_radius+\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
  3246.  }\
  3247.  else\
  3248.  {\
  3249.   return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+userdraw_radius+\"\\n\"+input_reply;\
  3250.  }\
  3251. }\
  3252. else\
  3253. {\
  3254.  if( typeof userdraw_text != 'undefined' ){\
  3255.   return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+userdraw_radius+\"\\n\"+userdrawW_text;\
  3256.  }\
  3257.  else\
  3258.  {\
  3259.   return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+userdraw_radius;\
  3260.  }\
  3261. }\
  3262. };\
  3263. this.read_canvas = read_canvas;\n\
  3264. <!-- end function 3 read_canvas() -->");
  3265.     break;
  3266.     case 4: fprintf(js_include_file,"\
  3267. \n<!-- begin function 4 read_canvas() -->\n\
  3268. function read_canvas(){\
  3269. var reply_x = new Array();var reply_y = new Array();var p = 0;\
  3270. while(userdraw_x[p]){\
  3271.  reply_x[p] = px2x(userdraw_x[p]);\
  3272.  reply_y[p] = px2y(userdraw_y[p]);\
  3273.  p++;\
  3274. };\
  3275. if(p == 0){alert(\"nothing drawn...\");return;};\
  3276. if( document.getElementById(\"canvas_input0\") || document.getElementById(\"mathml0\") ){\
  3277.  var p = 0;var input_reply = new Array();\
  3278.  if( document.getElementById(\"canvas_input0\")){\
  3279.   var t = 0;\
  3280.   while(document.getElementById(\"canvas_input\"+t)){\
  3281.    if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
  3282.     input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
  3283.     p++;\
  3284.    };\
  3285.    t++;\
  3286.   };\
  3287.  };\
  3288.  if( typeof userdraw_text != 'undefined' ){\
  3289.   return reply_x+\"\\n\"+reply_y +\"\\n\"+userdraw_radius+\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
  3290.  }\
  3291.  else\
  3292.  {\
  3293.   return reply_x+\"\\n\"+reply_y +\"\\n\"+userdraw_radius+\"\\n\"+input_reply;\
  3294.  }\
  3295. }\
  3296. else\
  3297. {\
  3298.  if( typeof userdraw_text != 'undefined' ){\
  3299.   return reply_x+\"\\n\"+reply_y+\"\\n\"+userdraw_radius+\"\\n\"+userdraw_text;\
  3300.  }\
  3301.  else\
  3302.  {\
  3303.   return reply_x+\"\\n\"+reply_y+\"\\n\"+userdraw_radius;\
  3304.  }\
  3305. };\
  3306. };\
  3307. this.read_canvas = read_canvas;\n\
  3308. <!-- end function 4 read_canvas() -->");
  3309.     break;
  3310.     /*
  3311.         attention: we reset userdraw_x / userdraw_y  : because  userdraw_x = [][] userdraw_y = [][]
  3312.         used for userdraw multiple paths
  3313.     */
  3314.     case 5: fprintf(js_include_file,"\
  3315. \n<!-- begin function 5 read_canvas() -->\n\
  3316. function read_canvas(){\
  3317. var p = 0;\
  3318. var reply = \"\";\
  3319. for(p = 0; p < userdraw_x.length;p++){\
  3320.  if(userdraw_x[p] != null ){\
  3321.   reply = reply + userdraw_x[p]+\"\\n\"+userdraw_y[p]+\"\\n\";\
  3322.  };\
  3323. };\
  3324. if(p == 0){alert(\"nothing drawn...\");return;};\
  3325. userdraw_x = [];userdraw_y = [];\
  3326. if( document.getElementById(\"canvas_input0\") || document.getElementById(\"mathml0\") ){\
  3327.  var p = 0;var input_reply = new Array();\
  3328.  if( document.getElementById(\"canvas_input0\")){\
  3329.   var t = 0;\
  3330.   while(document.getElementById(\"canvas_input\"+t)){\
  3331.    if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
  3332.     input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
  3333.     p++;\
  3334.    };\
  3335.    t++;\
  3336.   };\
  3337.  };\
  3338.  if( typeof userdraw_text != 'undefined' ){\
  3339.   return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
  3340.  }\
  3341.  else\
  3342.  {\
  3343.   return reply +\"\\n\"+input_reply;\
  3344.  }\
  3345. }\
  3346. else\
  3347. {\
  3348.  if( typeof userdraw_text != 'undefined' ){\
  3349.   return reply+\"\\n\"+userdraw_text;\
  3350.  }\
  3351.  else\
  3352.  {\
  3353.   return reply;\
  3354.  }\
  3355. };\
  3356. };\
  3357. this.read_canvas = rdad_canvas;\n\
  3358. <!-- end function 5 read_canvas() -->");
  3359.     break;
  3360.     /*
  3361.         attention: we reset userdraw_x / userdraw_y  : because  userdraw_x = [][] userdraw_y = [][]
  3362.         used for userdraw multiple paths
  3363.     */
  3364.     case 6: fprintf(js_include_file,"\
  3365. \n<!-- begin function 6 read_canvas() -->\n\
  3366. function read_canvas(){\
  3367. var p = 0;\
  3368. var reply = \"\";\
  3369. var tmp_x = new Array();\
  3370. var tmp_y = new Array();\
  3371. for(p = 0 ; p < userdraw_x.length; p++){\
  3372.  tmp_x = userdraw_x[p];\
  3373.  tmp_y = userdraw_y[p];\
  3374.  if(tmp_x != null){\
  3375.   for(var i = 0 ; i < tmp_x.length ; i++){\
  3376.    tmp_x[i] = px2x(tmp_x[i]);\
  3377.    tmp_y[i] = px2y(tmp_y[i]);\
  3378.   };\
  3379.   reply = reply + tmp_x + \"\\n\" + tmp_y +\"\\n\";\
  3380.  };\
  3381. };\
  3382. if(p == 0){alert(\"nothing drawn...\");return;};\
  3383. userdraw_x = [];userdraw_y = [];\
  3384. if( document.getElementById(\"canvas_input0\") ){\
  3385.  var p = 0;var input_reply = new Array();\
  3386.  if( document.getElementById(\"canvas_input0\")){\
  3387.   var t = 0;\
  3388.   while(document.getElementById(\"canvas_input\"+t)){\
  3389.    if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
  3390.     input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
  3391.     p++;\
  3392.    };\
  3393.    t++;\
  3394.   };\
  3395.  };\
  3396.  if( typeof userdraw_text != 'undefined' ){\
  3397.   return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
  3398.  }\
  3399.  else\
  3400.  {\
  3401.   return reply +\"\\n\"+input_reply;\
  3402.  }\
  3403. }\
  3404. else\
  3405. {\
  3406.  if( typeof userdraw_text != 'undefined' ){\
  3407.   return reply +\"\\n\"+userdraw_text;\
  3408.  }\
  3409.  else\
  3410.  {\
  3411.   return reply;\
  3412.  }\
  3413. };\
  3414. };\
  3415. this.read_canvas = read_canvas;\n\
  3416. <!-- end function 6 read_canvas() -->");
  3417.     break;
  3418.     case 7: fprintf(js_include_file,"\
  3419. \n<!-- begin function 7 read_canvas() -->\n\
  3420. function read_canvas(){\
  3421. var reply = new Array();\
  3422. var p = 0;\
  3423. while(userdraw_x[p]){\
  3424.  reply[p] = userdraw_x[p] +\":\" + userdraw_y[p];\
  3425.  p++;\
  3426. };\
  3427. if(p == 0){alert(\"nothing drawn...\");return;};\
  3428. if( document.getElementById(\"canvas_input0\") ){\
  3429.  var p = 0;var input_reply = new Array();\
  3430.  if( document.getElementById(\"canvas_input0\")){\
  3431.   var t = 0;\
  3432.   while(document.getElementById(\"canvas_input\"+t)){\
  3433.    if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
  3434.     input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
  3435.     p++;\
  3436.    };\
  3437.    t++;\
  3438.   };\
  3439.  };\
  3440.  if( typeof userdraw_text != 'undefined' ){\
  3441.   return reply+\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
  3442.  }\
  3443.  else\
  3444.  {\
  3445.   return reply+\"\\n\"+input_reply;\
  3446.  }\
  3447. };\
  3448. else\
  3449. {\
  3450.  if( typeof userdraw_text != 'undefined' ){\
  3451.   return reply+\"\\n\"+userdraw_text;\
  3452.  }\
  3453.  else\
  3454.  {\
  3455.   return reply;\
  3456.  }\
  3457. };\
  3458. };\
  3459. this.read_canvas = read_canvas;\n\
  3460. <!-- end function 7 read_canvas() -->");
  3461.     break;
  3462.     case 8: fprintf(js_include_file,"\
  3463. \n<!-- begin function 8 read_canvas() -->\n\
  3464. function read_canvas(){\
  3465. var reply = new Array();\
  3466. var p = 0;\
  3467. while(userdraw_x[p]){\
  3468.  reply[p] = px2x(userdraw_x[p]) +\":\" + px2y(userdraw_y[p]);\
  3469.  p++;\
  3470. };\
  3471. if(p == 0){alert(\"nothing drawn...\");return;};\
  3472. if( document.getElementById(\"canvas_input0\") || document.getElementById(\"mathml0\") ){\
  3473.  var p = 0;var input_reply = new Array();\
  3474.  if( document.getElementById(\"canvas_input0\")){\
  3475.   var t = 0;\
  3476.   while(document.getElementById(\"canvas_input\"+t)){\
  3477.    if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
  3478.     input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
  3479.     p++;\
  3480.    };\
  3481.    t++;\
  3482.   };\
  3483.  };\
  3484.  if( typeof userdraw_text != 'undefined' ){\
  3485.   return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
  3486.  }\
  3487.  else\
  3488.  {\
  3489.   return reply +\"\\n\"+input_reply;\
  3490.  }\
  3491. }\
  3492. else\
  3493. {\
  3494.  if( typeof userdraw_text != 'undefined' ){\
  3495.   return reply +\"\\n\"+userdraw_text;\
  3496.  }\
  3497.  else\
  3498.  {\
  3499.   return reply;\
  3500.  }\
  3501. };\
  3502. };\
  3503. this.read_canvas = read_canvas;\n\
  3504. <!-- end function 8 read_canvas() -->");
  3505.     break;
  3506.     case 9: fprintf(js_include_file,"\
  3507. \n<!-- begin function 9 read_canvas() -->\n\
  3508. function read_canvas(){\
  3509. var reply = new Array();\
  3510. var p = 0;\
  3511. while(userdraw_x[p]){\
  3512.  reply[p] = userdraw_x[p] +\":\" + userdraw_y[p] + \":\" + userdraw_radius[p];\
  3513.  p++;\
  3514. };\
  3515. if(p == 0){alert(\"nothing drawn...\");return;};\
  3516. if( document.getElementById(\"canvas_input0\") ){\
  3517.  var p = 0;var input_reply = new Array();\
  3518.  if( document.getElementById(\"canvas_input0\")){\
  3519.   var t = 0;\
  3520.   while(document.getElementById(\"canvas_input\"+t)){\
  3521.    if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
  3522.     input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
  3523.     p++;\
  3524.    };\
  3525.    t++;\
  3526.   };\
  3527.  };\
  3528.  if( typeof userdraw_text != 'undefined' ){\
  3529.   return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
  3530.  }\
  3531.  else\
  3532.  {\
  3533.   return reply +\"\\n\"+input_reply;\
  3534.  }\
  3535. }\
  3536. else\
  3537. {\
  3538.  if( typeof userdraw_text != 'undefined' ){\
  3539.   return reply +\"\\n\"+userdraw_text;\
  3540.  }\
  3541.  else\
  3542.  {\
  3543.   return reply;\
  3544.  }\
  3545. };\
  3546. };\
  3547. this.read_canvas = read_canvas;\n\
  3548. <!-- end function 9 read_canvas() -->");
  3549.     break;
  3550.     case 10: fprintf(js_include_file,"\
  3551. \n<!-- begin function 10 read_canvas() -->\n\
  3552. function read_canvas(){\
  3553. var reply = new Array();\
  3554. var p = 0;\
  3555. while(userdraw_x[p]){\
  3556.  reply[p] = px2x(userdraw_x[p]) +\":\" + px2y(userdraw_y[p]) +\":\" + userdraw_radius[p];\
  3557.  p++;\
  3558. };\
  3559. if(p == 0){alert(\"nothing drawn...\");return;};\
  3560. if( document.getElementById(\"canvas_input0\") ){\
  3561.  var p = 0;var input_reply = new Array();\
  3562.  if( document.getElementById(\"canvas_input0\")){\
  3563.   var t = 0;\
  3564.   while(document.getElementById(\"canvas_input\"+t)){\
  3565.    if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
  3566.     input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
  3567.     p++;\
  3568.    };\
  3569.    t++;\
  3570.   };\
  3571.  };\
  3572.  if( typeof userdraw_text != 'undefined' ){\
  3573.   return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
  3574.  }\
  3575.  else\
  3576.  {\
  3577.   return reply +\"\\n\"+input_reply;\
  3578.  }\
  3579. }\
  3580. else\
  3581. {\
  3582.  if( typeof userdraw_text != 'undefined' ){\
  3583.   return reply +\"\\n\"+userdraw_text;\
  3584.  }\
  3585.  else\
  3586.  {\
  3587.   return reply;\
  3588.  }\
  3589. };\
  3590. };\
  3591. this.read_canvas = read_canvas;\n\
  3592. <!-- end function 10 read_canvas() -->");
  3593.     break;
  3594.     case 11: fprintf(js_include_file,"\
  3595. \n<!-- begin function 11 read_canvas() -->\n\
  3596. function read_canvas(){\
  3597. var reply = \"\";\
  3598. var p = 0;\
  3599. while(userdraw_x[p]){\
  3600.  reply = reply + px2x(userdraw_x[p]) +\",\" + px2y(userdraw_y[p]) +\",\" + px2x(userdraw_x[p+1]) +\",\" + px2y(userdraw_y[p+1]) +\"\\n\" ;\
  3601.  p = p+2;\
  3602. };\
  3603. if(p == 0){alert(\"nothing drawn...\");return;};\
  3604. if( document.getElementById(\"canvas_input0\") || document.getElementById(\"mathml0\") ){\
  3605.  var p = 0;var input_reply = new Array();\
  3606.  if( document.getElementById(\"canvas_input0\")){\
  3607.   var t = 0;\
  3608.   while(document.getElementById(\"canvas_input\"+t)){\
  3609.    if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
  3610.     input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
  3611.     p++;\
  3612.    };\
  3613.    t++;\
  3614.   };\
  3615.  };\
  3616.  if( typeof userdraw_text != 'undefined' ){\
  3617.   return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
  3618.  }\
  3619.  else\
  3620.  {\
  3621.   return reply +\"\\n\"+input_reply;\
  3622.  }\
  3623. }\
  3624. else\
  3625. {\
  3626.  if( typeof userdraw_text != 'undefined' ){\
  3627.   return reply +\"\\n\"+userdraw_text;\
  3628.  }\
  3629.  else\
  3630.  {\
  3631.   return reply;\
  3632.  }\
  3633. };\
  3634. };\
  3635. this.read_canvas = read_canvas;\n\
  3636. <!-- end function 11 read_canvas() -->");
  3637.     break;
  3638.     case 12: fprintf(js_include_file,"\
  3639. \n<!-- begin function 12 read_canvas() -->\n\
  3640. function read_canvas(){\
  3641. var reply = \"\";\
  3642. var p = 0;\
  3643. for(p = 0; p< userdraw_x.lenght;p = p+2){\
  3644.  if(userdraw_x[p] != null){\
  3645.    reply = reply + userdraw_x[p] +\",\" + userdraw_y[p] +\",\" + userdraw_x[p+1] +\",\" + userdraw_y[p+1] +\"\\n\" ;\
  3646.  };\
  3647. };\
  3648. if(p == 0){alert(\"nothing drawn...\");return;};\
  3649. if( document.getElementById(\"canvas_input0\") ){\
  3650.  var p = 0;var input_reply = new Array();\
  3651.  if( document.getElementById(\"canvas_input0\")){\
  3652.   var t = 0;\
  3653.   while(document.getElementById(\"canvas_input\"+t)){\
  3654.    if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
  3655.     input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
  3656.     p++;\
  3657.    };\
  3658.    t++;\
  3659.   };\
  3660.  };\
  3661.  if( typeof userdraw_text != 'undefined' ){\
  3662.   return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
  3663.  }\
  3664.  else\
  3665.  {\
  3666.   return reply +\"\\n\"+input_reply;\
  3667.  }\
  3668. }\
  3669. else\
  3670. {\
  3671.  if( typeof userdraw_text != 'undefined' ){\
  3672.   return reply +\"\\n\"+userdraw_text\
  3673.  }\
  3674.  else\
  3675.  {\
  3676.   return reply;\
  3677.  }\
  3678. };\
  3679. };\
  3680. this.read_canvas = read_canvas;\n\
  3681. <!-- end function 12 read_canvas() -->");
  3682.     break;
  3683.     case 13: fprintf(js_include_file,"\
  3684. \n<!-- begin function 13 read_canvas() -->\n\
  3685. function read_canvas(){\
  3686. var reply = new Array();\
  3687. var p = 0;var i = 0;\
  3688. while(userdraw_x[p]){\
  3689.  reply[i] = px2x(userdraw_x[p]) +\":\" + px2y(userdraw_y[p]) +\":\" + px2x(userdraw_x[p+1]) +\":\" + px2y(userdraw_y[p+1]);\
  3690.  p = p+2;i++;\
  3691. };\
  3692. if(p == 0){alert(\"nothing drawn...\");return;};\
  3693. if( document.getElementById(\"canvas_input0\") ){\
  3694.  var p = 0;var input_reply = new Array();\
  3695.  if( document.getElementById(\"canvas_input0\")){\
  3696.   var t = 0;\
  3697.   while(document.getElementById(\"canvas_input\"+t)){\
  3698.    if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
  3699.     input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
  3700.     p++;\
  3701.    };\
  3702.    t++;\
  3703.   };\
  3704.  };\
  3705.  if( typeof userdraw_text != 'undefined' ){\
  3706.   return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
  3707.  }\
  3708.  else\
  3709.  {\
  3710.   return reply +\"\\n\"+input_reply;\
  3711.  }\
  3712. }\
  3713. else\
  3714. {\
  3715.  if( typeof userdraw_text != 'undefined' ){\
  3716.   return reply +\"\\n\"+userdraw_text\
  3717.  }\
  3718.  else\
  3719.  {\
  3720.   return reply;\
  3721.  }\
  3722. };\
  3723. };\
  3724. this.read_canvas = read_canvas;\n\
  3725. <!-- end function 13 read_canvas() -->");
  3726.     break;
  3727.     case 14: fprintf(js_include_file,"\
  3728. \n<!-- begin function 14 read_canvas() -->\n\
  3729. function read_canvas(){\
  3730. var reply = new Array();\
  3731. var p = 0;var i = 0;\
  3732. while(userdraw_x[p]){\
  3733.  reply[i] = userdraw_x[p] +\":\" + userdraw_y[p] +\":\" + userdraw_x[p+1] +\":\" + userdraw_y[p+1];\
  3734.  p = p+2;i++;\
  3735. };\
  3736. if(p == 0){alert(\"nothing drawn...\");return;};\
  3737. if( document.getElementById(\"canvas_input0\") ){\
  3738.  var p = 0;var input_reply = new Array();\
  3739.  if( document.getElementById(\"canvas_input0\")){\
  3740.   var t = 0;\
  3741.   while(document.getElementById(\"canvas_input\"+t)){\
  3742.    if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
  3743.     input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
  3744.     p++;\
  3745.    };\
  3746.    t++;\
  3747.   };\
  3748.  };\
  3749.  if( typeof userdraw_text != 'undefined' ){\
  3750.   return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
  3751.  }\
  3752.  else\
  3753.  {\
  3754.   return reply +\"\\n\"+input_reply;\
  3755.  }\
  3756. }\
  3757. else\
  3758. {\
  3759.  if( typeof userdraw_text != 'undefined' ){\
  3760.   return reply +\"\\n\"+userdraw_text;\
  3761.  }\
  3762.  else\
  3763.  {\
  3764.   return reply;\
  3765.  }\
  3766. };\
  3767. };\
  3768. this.read_canvas = read_canvas;\n\
  3769. <!-- end function 14 read_canvas() -->");
  3770.     break;
  3771.     case 15: fprintf(js_include_file,"\
  3772. \n<!-- begin function 15  read_canvas() -->\n\
  3773. function read_canvas(){\
  3774. var input_reply = new Array();\
  3775. var p = 0;\
  3776. if( document.getElementById(\"canvas_input0\")){\
  3777.  var t = 0;\
  3778.  while(document.getElementById(\"canvas_input\"+t)){\
  3779.   if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
  3780.    input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
  3781.    p++;\
  3782.   };\
  3783.   t++;\
  3784.  };\
  3785. };\
  3786. if( typeof userdraw_text != 'undefined' ){\
  3787.   return input_reply +\"\\n\"+userdraw_text;\
  3788. }\
  3789. else\
  3790. {\
  3791.  return input_reply;\
  3792. };\
  3793. };\
  3794. this.read_canvas = read_canvas;\n\
  3795. <!-- end function 15 read_canvas() -->");
  3796.     break;
  3797.     case 16: fprintf(js_include_file,"\
  3798. \n<!-- begin function 16 read_mathml() -->\n\
  3799. function read_mathml(){\
  3800. var reply = new Array();\
  3801. var p = 0;\
  3802. if( document.getElementById(\"mathml0\")){\
  3803.  while(document.getElementById(\"mathml\"+p)){\
  3804.   reply[p] = document.getElementById(\"mathml\"+p).value;\
  3805.   p++;\
  3806.  };\
  3807. };\
  3808. return reply;\
  3809. };\
  3810. this.read_mathml = read_mathml;\n\
  3811. <!-- end function 16 read_mathml() -->");
  3812.     break;
  3813.     case 17:  fprintf(js_include_file,"\
  3814. \n<!-- begin function 17 read_canvas() -->\n\
  3815. function read_canvas(){\
  3816. if( userdraw_text.length == 0){alert(\"no text typed...\");return;}\
  3817. return userdraw_text;\
  3818. };\
  3819. this.read_canvas = read_canvas;\n\
  3820. <!-- end function 17 read_canvas() -->");
  3821.     break;
  3822.     case 18: fprintf(js_include_file,"\
  3823. \n<!-- begin function 18 read_canvas() -->\n\
  3824. function read_canvas(){\
  3825. var p = 0;\
  3826. var reply = new Array();\
  3827. var name;\
  3828. var t = true;\
  3829. while(t){\
  3830.  try{ name = eval('clocks'+p);\
  3831.  reply[p] = parseInt((name.H+name.M/60+name.S/3600)%%12)+\":\"+parseInt((name.M + name.S/60)%%60)+\":\"+(name.S)%%60;p++}catch(e){t=false;};\
  3832. };\
  3833. if( p == 0){alert(\"clock(s) not modified...\");return;}\
  3834. return reply;\
  3835. };\
  3836. this.read_canvas = read_canvas;\n\
  3837. <!-- end function 18 read_canvas() -->");
  3838.     break;
  3839.     case 19: fprintf(js_include_file,"\
  3840. \n<!-- begin function 19 read_canvas() -->\n\
  3841. function read_canvas(){\
  3842. return reply[0];\
  3843. };\
  3844. this.read_canvas = read_canvas;\n\
  3845. <!-- end function 19 read_canvas() -->");
  3846.     case 20: fprintf(js_include_file,"\
  3847. \n<!-- begin function 20 read_canvas() -->\n\
  3848. function read_canvas(){\
  3849. var len  = ext_drag_images.length;\
  3850. var reply = new Array(len);\
  3851. for(var p = 0 ; p < len ; p++){\
  3852.    var img = ext_drag_images[p];\
  3853.    reply[p] = px2x(img[6])+\":\"+px2y(img[7]);\
  3854. };\
  3855. return reply;\
  3856. };\
  3857. this.read_canvas = read_canvas;\n\
  3858. <!-- end function 20 read_canvas() -->");
  3859.     break;
  3860.     case 21: fprintf(js_include_file,"\
  3861. \n<!-- begin function 21 read_canvas() -->\n\
  3862. function read_canvas(){\
  3863. if( userdraw_x.length == 0){alert(\"nothing drawn...\");return;}\
  3864. var reply_coord = new Array();var p = 0;\
  3865. while(userdraw_x[p]){\
  3866.  reply_coord[p] = \"(\"+px2x(userdraw_x[p])+\":\"+px2y(userdraw_y[p])+\")\";\
  3867.  p++;\
  3868. };\
  3869. if(p == 0){alert(\"nothing drawn...\");return;};\
  3870. if( document.getElementById(\"canvas_input0\") ){\
  3871.  var p = 0;var input_reply = new Array();\
  3872.  if( document.getElementById(\"canvas_input0\")){\
  3873.   var t = 0;\
  3874.   while(document.getElementById(\"canvas_input\"+t)){\
  3875.    if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
  3876.     input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
  3877.     p++;\
  3878.    };\
  3879.    t++;\
  3880.   };\
  3881.  };\
  3882.  if( typeof userdraw_text != 'undefined' ){\
  3883.   return reply_coord+\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
  3884.  }\
  3885.  else\
  3886.  {\
  3887.   return reply_coord+\"\\n\"+input_reply;\
  3888.  }\
  3889. }\
  3890. else\
  3891. {\
  3892.  if( typeof userdraw_text != 'undefined' ){\
  3893.   return reply_coord+\"\\n\"+userdraw_text;\
  3894.  }\
  3895.  else\
  3896.  {\
  3897.   return reply_coord;\
  3898.  };\
  3899. };\
  3900. };\
  3901. this.read_canvas = read_canvas;\n\
  3902. <!-- end function 21 read_canvas() -->");
  3903.     break;
  3904.     case 22: fprintf(js_include_file,"\
  3905. \n<!-- begin function 22 read_canvas() -->\n\
  3906. function read_canvas(){\
  3907. var reply = new Array();\
  3908. var p = 0;\
  3909. var idx = 0;\
  3910. while(userdraw_x[p]){\
  3911.  reply[idx] = px2x(userdraw_x[p]);\
  3912.  idx++;\
  3913.  reply[idx] = px2y(userdraw_y[p]);\
  3914.  idx++;p++;\
  3915. };\
  3916. if(p == 0){alert(\"nothing drawn...\");return;};\
  3917. if( document.getElementById(\"canvas_input0\") ){\
  3918.  var p = 0;var input_reply = new Array();\
  3919.  if( document.getElementById(\"canvas_input0\")){\
  3920.   var t = 0;\
  3921.   while(document.getElementById(\"canvas_input\"+t)){\
  3922.    if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
  3923.     input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
  3924.     p++;\
  3925.    };\
  3926.    t++;\
  3927.   };\
  3928.  };\
  3929.  if( typeof userdraw_text != 'undefined' ){\
  3930.   return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
  3931.  }\
  3932.  else\
  3933.  {\
  3934.   return reply +\"\\n\"+input_reply;\
  3935.  }\
  3936. }\
  3937. else\
  3938. {\
  3939.  if( typeof userdraw_text != 'undefined' ){\
  3940.   return reply +\"\\n\"+userdraw_text;\
  3941.  }\
  3942.  else\
  3943.  {\
  3944.   return reply;\
  3945.  }\
  3946. };\
  3947. };\
  3948. this.read_canvas = read_canvas;\n\
  3949. <!-- end function 22 read_canvas() -->");
  3950.     break;
  3951.     case 23: fprintf(js_include_file,"\
  3952. \n<!-- begin function 23 read_canvas() default 5 px marge -->\n\
  3953. function read_canvas(){\
  3954. if( userdraw_x.length < 2){alert(\"nothing drawn...\");return;}\
  3955. var reply_x = new Array();var reply_y = new Array();var p = 0;\
  3956. var lu = userdraw_x.length;\
  3957. if( lu != userdraw_y.length ){ alert(\"x / y mismatch !\");return;}\
  3958. var marge = 5;\
  3959. reply_x[p] = px2x(userdraw_x[0]);reply_y[p] = px2y(userdraw_y[0]);p++;\
  3960. for(var i = 0; i < lu - 1 ; i++ ){\
  3961.  if( (userdraw_x[i] < (userdraw_x[i+1] + marge)) && (userdraw_x[i] > (userdraw_x[i+1] - marge)) ){\
  3962.   if( (userdraw_y[i] < (userdraw_y[i+1] + marge)) && (userdraw_y[i] > (userdraw_y[i+1] - marge)) ){\
  3963.    reply_x[p] = px2x(userdraw_x[i]);reply_y[p] = px2y(userdraw_y[i]);\
  3964.    if( isNaN(reply_x[p]) || isNaN(reply_y[p]) ){ alert(\"hmmmm ?\");return; };\
  3965.    p++;\
  3966.   };\
  3967.  };\
  3968. };\
  3969. if( document.getElementById(\"canvas_input0\")){\
  3970.  var p = 0;var input_reply = new Array();\
  3971.  if( document.getElementById(\"canvas_input0\")){\
  3972.   var t = 0;\
  3973.   while(document.getElementById(\"canvas_input\"+t)){\
  3974.    if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
  3975.     input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
  3976.     p++;\
  3977.    };\
  3978.    t++;\
  3979.   };\
  3980.  };\
  3981.  if( typeof userdraw_text != 'undefined' ){\
  3982.   return reply_x+\"\\n\"+reply_y+\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
  3983.  }\
  3984.  else\
  3985.  {\
  3986.   return reply_x+\"\\n\"+reply_y+\"\\n\"+input_reply;\
  3987.  }\
  3988. }\
  3989. else\
  3990. {\
  3991.  if( typeof userdraw_text != 'undefined' ){\
  3992.   return reply_x+\"\\n\"+reply_y+\"\\n\"+userdraw_text;\
  3993.  }\
  3994.  else\
  3995.  {\
  3996.   return reply_x+\"\\n\"+reply_y;\
  3997.  };\
  3998. };\
  3999. };\
  4000. this.read_canvas = read_canvas;\n\
  4001. <!-- end function 23 read_canvas() -->");
  4002.     break;
  4003.  
  4004.     default: canvas_error("hmmm unknown replyformat...");break;
  4005. }
  4006.  return;
  4007. }
  4008.  
  4009.  
  4010. /*
  4011.  add drawfunction :
  4012.  - functions used by userdraw_primitives (circle,rect,path,triangle...)
  4013.  - things not covered by the drag&drop library (static objects like parallel, lattice ,gridfill , imagefill)
  4014.  - grid / mathml
  4015.  - will not scale or zoom in
  4016.  - will not be filled via pixel operations like fill / floodfill / filltoborder / clickfill
  4017.  - is printed directly into 'js_include_file'
  4018. */
  4019.  
  4020. void add_javascript_functions(int js_functions[],int canvas_root_id){
  4021. int i;
  4022. for(i = 0 ; i < MAX_JS_FUNCTIONS; i++){
  4023.  if( js_functions[i] == 1){
  4024.     switch(i){
  4025.     case DRAG_EXTERNAL_IMAGE:
  4026. fprintf(js_include_file,"\n<!-- drag external images --->\n\
  4027. var external_canvas = create_canvas%d(7,xsize,ysize);\
  4028. var external_ctx = external_canvas.getContext(\"2d\");\
  4029. var external_canvas_rect = external_canvas.getBoundingClientRect();\
  4030. canvas_div.addEventListener(\"mousedown\",setxy,false);\
  4031. canvas_div.addEventListener(\"mouseup\",dragstop,false);\
  4032. canvas_div.addEventListener(\"mousemove\",dragxy,false);\
  4033. var selected_image = null;\
  4034. var ext_image_cnt = 0;\
  4035. var ext_drag_images = new Array();\
  4036. function drag_external_image(URL,sx,sy,swidth,sheight,x0,y0,width,height,idx,draggable){\
  4037. ext_image_cnt = idx;\
  4038. var image = new Image();\
  4039. image.src = URL;\
  4040. image.onload = function(){\
  4041.  if( x0 < 1 ){ x0 = 0; };if( y0 < 1 ){ y0 = 0; };if( sx < 1 ){ sx = 0; };if( sy < 1 ){ sy = 0; };\
  4042.  if( width < 1 ){ width = image.width; };if( height < 1 ){ height = image.height; };\
  4043.  if( swidth < 1 ){ swidth = image.width; };if( sheight < 1 ){ sheight = image.height; };\
  4044.  img = new Array(10);\
  4045.  img[0] = draggable;img[1] = image;img[2] = sx;img[3] = sy;img[4] = swidth;img[5] = sheight;\
  4046.  img[6] = x0;img[7] = y0;img[8] = width;img[9] = height;\
  4047.  ext_drag_images[idx] = img;\
  4048.  external_ctx.drawImage(img[1],img[2],img[3],img[4],img[5],img[6],img[7],img[8],img[9]);\
  4049. };\
  4050. };\
  4051. function dragstop(evt){\
  4052. selected_image = null;return;\
  4053. };\
  4054. function dragxy(evt){\
  4055. if( selected_image != null ){\
  4056.  var xoff = (document.documentElement.scrollLeft ? document.documentElement.scrollLeft : document.body.scrollLeft);\
  4057.  var yoff = (document.documentElement.scrollTop ? document.documentElement.scrollTop : document.body.scrollTop);\
  4058.  var s_img = ext_drag_images[selected_image];\
  4059.  s_img[6] = evt.clientX - external_canvas_rect.left + xoff;\
  4060.  s_img[7] = evt.clientY - external_canvas_rect.top + yoff;\
  4061.  ext_drag_images[selected_image] = s_img;\
  4062.  external_ctx.clearRect(0,0,xsize,ysize);\
  4063.  for(var i = 0; i <= ext_image_cnt ; i++){\
  4064.   var img = ext_drag_images[i];\
  4065.   external_ctx.drawImage(img[1],img[2],img[3],img[4],img[5],img[6],img[7],img[8],img[9]);\
  4066.  };\
  4067. };\
  4068. };\
  4069. function setxy(evt){\
  4070. if( ! selected_image && evt.which == 1 ){\
  4071.  var xoff = (document.documentElement.scrollLeft ? document.documentElement.scrollLeft : document.body.scrollLeft);\
  4072.  var yoff = (document.documentElement.scrollTop ? document.documentElement.scrollTop : document.body.scrollTop);\
  4073.  var xm = evt.clientX - external_canvas_rect.left + xoff;\
  4074.  var ym = evt.clientY - external_canvas_rect.top + yoff;\
  4075.  for(var p = 0 ; p <= ext_image_cnt ; p++){\
  4076.   var img = ext_drag_images[p];\
  4077.   if( img[0] == 1 ){\
  4078.    var w = img.width;\
  4079.    var h = img.height;\
  4080.    if( xm > img[6] && xm < img[6] + img[4]){\
  4081.     if( ym > img[7] && ym < img[7] + img[5]){\
  4082.      img[6] = xm;\
  4083.      img[7] = ym;\
  4084.      ext_drag_images[p] = img;\
  4085.      selected_image = p;\
  4086.      dragxy(evt);\
  4087.     };\
  4088.    };\
  4089.   };\
  4090.  };\
  4091. }\
  4092. else\
  4093. {\
  4094.  selected_image = null;\
  4095. };\
  4096. };",canvas_root_id);
  4097.     break;
  4098.  
  4099.     case DRAW_EXTERNAL_IMAGE:
  4100. fprintf(js_include_file,"\n<!-- draw external images -->\n\
  4101. draw_external_image = function(URL,sx,sy,swidth,sheight,x0,y0,width,height,draggable){\
  4102. var image = new Image();\
  4103. image.src = URL;\
  4104. var canvas_bg_div = document.getElementById(\"canvas_div%d\");\
  4105. image.onload = function(){\
  4106.  if( x0 < 1 ){ x0 = 0; };\
  4107.  if( y0 < 1 ){ y0 = 0; };\
  4108.  if( sx < 1 ){ sx = 0; };\
  4109.  if( sy < 1 ){ sy = 0; };\
  4110.  if( width < 1 ){ width = image.width;};\
  4111.  if( height < 1 ){ height = image.height;};\
  4112.  if( swidth < 1 ){ swidth = image.width;};\
  4113.  if( sheight < 1 ){ sheight = image.height;};\
  4114.  var ml = x0 - sx;\
  4115.  var mh = y0 - sy;\
  4116.  canvas_bg_div.style.backgroundPosition= \"left \"+ml+\"px top \"+mh+\"px\";\
  4117.  canvas_bg_div.style.backgroundSize = width+\"px \"+height+\"px\";\
  4118.  canvas_bg_div.style.backgroundRepeat = \"no-repeat\";\
  4119.  canvas_bg_div.style.backgroundPosition= sx+\"px \"+sy+\"px\";\
  4120.  canvas_bg_div.style.backgroundImage = \"url(\" + URL + \")\";\
  4121. };\
  4122. };",canvas_root_id);    
  4123.     break;
  4124.    
  4125.     case DRAW_ZOOM_BUTTONS: /* 6 rectangles 15x15 px  forbidden zone for drawing : y < ysize - 15*/
  4126. fprintf(js_include_file,"\n<!-- draw zoom buttons -->\n\
  4127. draw_zoom_buttons = function(canvas_type,color,opacity){\
  4128. var obj;\
  4129. if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
  4130.  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
  4131. }\
  4132. else\
  4133. {\
  4134.  obj = create_canvas%d(canvas_type,xsize,ysize);\
  4135. };\
  4136. var ctx = obj.getContext(\"2d\");\
  4137. ctx.font =\"18px Ariel\";\
  4138. ctx.textAlign = \"right\";\
  4139. ctx.fillStyle=\"rgba(\"+color+\",\"+opacity+\")\";\
  4140. ctx.fillText(\"+\",xsize,ysize);\
  4141. ctx.fillText(\"\\u2212\",xsize - 15,ysize);\
  4142. ctx.fillText(\"\\u2192\",xsize - 30,ysize-2);\
  4143. ctx.fillText(\"\\u2190\",xsize - 45,ysize-2);\
  4144. ctx.fillText(\"\\u2191\",xsize - 60,ysize-2);\
  4145. ctx.fillText(\"\\u2193\",xsize - 75,ysize-2);\
  4146. ctx.fillText(\"\\u00D7\",xsize - 90,ysize-2);\
  4147. ctx.stroke();\
  4148. };",canvas_root_id,canvas_root_id,canvas_root_id);
  4149.    
  4150.     break;
  4151.     case DRAW_GRIDFILL:/* not used for userdraw */
  4152. fprintf(js_include_file,"\n<!-- draw gridfill -->\n\
  4153. draw_gridfill = function(canvas_type,x0,y0,dx,dy,linewidth,color,opacity,xsize,ysize){\
  4154. var obj;\
  4155. if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
  4156.  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
  4157. }\
  4158. else\
  4159. {\
  4160.  obj = create_canvas%d(canvas_type,xsize,ysize);\
  4161. };\
  4162. var ctx = obj.getContext(\"2d\");\
  4163. var x,y;\
  4164. ctx.save();\
  4165. ctx.strokeStyle=\"rgba(\"+color+\",\"+opacity+\")\";\
  4166. snap_x = dx;snap_y = dy;\
  4167. for( x = x0 ; x < xsize+dx ; x = x + dx ){\
  4168.    ctx.moveTo(x,y0);\
  4169.    ctx.lineTo(x,ysize);\
  4170. };\
  4171. for( y = y0 ; y < ysize+dy; y = y + dy ){\
  4172.    ctx.moveTo(x0,y);\
  4173.    ctx.lineTo(xsize,y);\
  4174. };\
  4175. ctx.stroke();\
  4176. ctx.restore();\
  4177. return;};",canvas_root_id,canvas_root_id,canvas_root_id);
  4178.     break;
  4179.    
  4180.     case DRAW_IMAGEFILL:/* not  used for userdraw */
  4181. fprintf(js_include_file,"\n<!-- draw imagefill -->\n\
  4182. draw_imagefill = function(canvas_type,x0,y0,URL,xsize,ysize){\
  4183. var obj;\
  4184. if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
  4185.  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
  4186. }\
  4187. else\
  4188. {\
  4189.  obj = create_canvas%d(canvas_type,xsize,ysize);\
  4190. };\
  4191. var ctx = obj.getContext(\"2d\");\
  4192. ctx.save();\
  4193. var img = new Image();\
  4194. img.src = URL;\
  4195. img.onload = function(){\
  4196.  if( (img.width > xsize-x0) && (img.height > ysize-y0) ){\
  4197.    ctx.drawImage(img,x0,y0,xsize,ysize);\
  4198.  }\
  4199.  else\
  4200.  {\
  4201.    var repeat = \"repeat\";\
  4202.    if(img.width > xsize - x0){\
  4203.         repeat = \"repeat-y\";\
  4204.    }\
  4205.    else\
  4206.    {\
  4207.     if( img.height > ysize -x0 ){\
  4208.      repeat = \"repeat-x\";\
  4209.     }\
  4210.    }\
  4211.    var pattern = ctx.createPattern(img,repeat);\
  4212.    ctx.rect(x0,y0,xsize,ysize);\
  4213.    ctx.fillStyle = pattern;\
  4214.  }\
  4215.  ctx.fill();\
  4216. };\
  4217. ctx.restore();\
  4218. return;\
  4219. };",canvas_root_id,canvas_root_id,canvas_root_id);
  4220.     break;
  4221.    
  4222.     case DRAW_DOTFILL:/* not  used for userdraw */
  4223. fprintf(js_include_file,"\n<!-- draw dotfill -->\n\
  4224. draw_dotfill = function(canvas_type,x0,y0,dx,dy,radius,color,opacity,xsize,ysize){\
  4225. var obj;\
  4226. if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
  4227.  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
  4228. }\
  4229. else\
  4230. {\
  4231.  obj = create_canvas%d(canvas_type,xsize,ysize);\
  4232. };\
  4233. var ctx = obj.getContext(\"2d\");\
  4234. var x,y;\
  4235. ctx.closePath();\
  4236. ctx.save();\
  4237. snap_x = dx;snap_y = dy;\
  4238. ctx.fillStyle=\"rgba(\"+color+\",\"+opacity+\")\";\
  4239. for( x = x0 ; x < xsize+dx ; x = x + dx ){\
  4240.  for( y = y0 ; y < ysize+dy ; y = y + dy ){\
  4241.   ctx.arc(x,y,radius,0,2*Math.PI,false);\
  4242.   ctx.closePath();\
  4243.  }\
  4244. }\
  4245. ctx.fill();\
  4246. ctx.restore();\
  4247. return;};",canvas_root_id,canvas_root_id,canvas_root_id);
  4248.     break;
  4249.  
  4250.     case DRAW_DIAMONDFILL:/* not used for userdraw */
  4251. fprintf(js_include_file,"\n<!-- draw hatch fill -->\n\
  4252. draw_diamondfill = function(canvas_type,x0,y0,dx,dy,linewidth,stroke_color,stroke_opacity,xsize,ysize){\
  4253.  var obj;\
  4254. if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
  4255.  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
  4256. }\
  4257. else\
  4258. {\
  4259.  obj = create_canvas%d(canvas_type,xsize,ysize);\
  4260. };\
  4261. var ctx = obj.getContext(\"2d\");\
  4262. var x;\
  4263. var y;\
  4264. ctx.save();\
  4265. ctx.lineWidth = linewidth;\
  4266. ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  4267. y = ysize;\
  4268. for( x = x0 ; x < xsize ; x = x + dx ){\
  4269.  ctx.moveTo(x,y0);\
  4270.  ctx.lineTo(xsize,y);\
  4271.  y = y - dy;\
  4272. };\
  4273. y = y0;\
  4274. for( x = xsize ; x > 0 ; x = x - dx){\
  4275.  ctx.moveTo(x,ysize);\
  4276.  ctx.lineTo(x0,y);\
  4277.  y = y + dy;\
  4278. };\
  4279. x = x0;\
  4280. for( y = y0 ; y < ysize ; y = y + dy ){\
  4281.  ctx.moveTo(xsize,y);\
  4282.  ctx.lineTo(x,ysize);\
  4283.  x = x + dx;\
  4284. };\
  4285. x = xsize;\
  4286. for( y = ysize ; y > y0 ; y = y - dy ){\
  4287.  ctx.moveTo(x,y0);\
  4288.  ctx.lineTo(x0,y);\
  4289.  x = x - dx;\
  4290. };\
  4291. ctx.stroke();\
  4292. ctx.restore();\
  4293. return;\
  4294. }",canvas_root_id,canvas_root_id,canvas_root_id);
  4295.     break;
  4296.    
  4297.     case DRAW_HATCHFILL:/* not used for userdraw */
  4298. fprintf(js_include_file,"\n<!-- draw hatch fill -->\n\
  4299. draw_hatchfill = function(canvas_type,x0,y0,dx,dy,linewidth,stroke_color,stroke_opacity,xsize,ysize){\
  4300.  var obj;\
  4301. if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
  4302.  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
  4303. }\
  4304. else\
  4305. {\
  4306.  obj = create_canvas%d(canvas_type,xsize,ysize);\
  4307. };\
  4308. var ctx = obj.getContext(\"2d\");\
  4309. var x;\
  4310. var y;\
  4311. ctx.save();\
  4312. ctx.lineWidth = linewidth;\
  4313. ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  4314. y = ysize;\
  4315. for( x = x0 ; x < xsize ; x = x + dx ){\
  4316.  ctx.moveTo(x,y0);\
  4317.  ctx.lineTo(xsize,y);\
  4318.  y = y - dy;\
  4319. };\
  4320. y = y0;\
  4321. for( x = xsize ; x >= dx ; x = x - dx){\
  4322.  ctx.moveTo(x,ysize);\
  4323.  ctx.lineTo(x0,y);\
  4324.  y = y + dy;\
  4325. };\
  4326. ctx.stroke();\
  4327. ctx.restore();\
  4328. return;\
  4329. };",canvas_root_id,canvas_root_id,canvas_root_id);
  4330.     break;
  4331.     case DRAW_CIRCLES:/*  used for userdraw */
  4332. fprintf(js_include_file,"\n<!-- draw circles -->\n\
  4333. 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_translate,vector){\
  4334. ctx.save();\
  4335. if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
  4336. if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
  4337. ctx.lineWidth = line_width;\
  4338. for(var p = 0 ; p < x_points.length ; p++ ){\
  4339.  ctx.beginPath();\
  4340.  ctx.arc(x_points[p],y_points[p],radius[p],0,2*Math.PI,false);\
  4341.  ctx.closePath();\
  4342.  if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
  4343.  if(use_filled == 1){ctx.fillStyle = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";ctx.fill();}\
  4344.  ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  4345.  ctx.stroke();\
  4346. }\
  4347. ctx.restore();\
  4348. return;\
  4349. };");
  4350.     break;
  4351.     case DRAW_POLYLINE:/* user for userdraw : draw lines through points */
  4352. fprintf(js_include_file,"\n<!-- draw polyline -->\n\
  4353. draw_polyline = function(ctx,x_points,y_points,line_width,stroke_color,stroke_opacity,use_dashed,dashtype0,dashtype1,use_rotate,angle,use_translate,vector){\
  4354. ctx.save();\
  4355. if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
  4356. if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
  4357. ctx.lineWidth = line_width;\
  4358. ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  4359. if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
  4360. ctx.clearRect(0,0,xsize,ysize);\
  4361. ctx.beginPath();\
  4362. for(var p = 0 ; p < x_points.length-1 ; p++ ){\
  4363.  ctx.moveTo(x_points[p],y_points[p]);\
  4364.  ctx.lineTo(x_points[p+1],y_points[p+1]);\
  4365. }\
  4366. ctx.closePath();\
  4367. ctx.stroke();\
  4368. ctx.fillStyle =\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  4369. for(var p = 0 ; p < x_points.length ; p++ ){\
  4370.  ctx.beginPath();\
  4371.  ctx.arc(x_points[p],y_points[p],line_width,0,2*Math.PI,false);\
  4372.  ctx.closePath();ctx.fill();ctx.stroke();\
  4373. };\
  4374. ctx.restore();\
  4375. return;\
  4376. };");
  4377.     break;
  4378.    
  4379.     case DRAW_SEGMENTS:/*  used for userdraw */
  4380. fprintf(js_include_file,"\n<!-- draw segments -->\n\
  4381. draw_segments = function(ctx,x_points,y_points,line_width,stroke_color,stroke_opacity,use_dashed,dashtype0,dashtype1,use_rotate,angle,use_translate,vector){\
  4382. ctx.save();\
  4383. if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
  4384. if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
  4385. ctx.lineWidth = line_width;\
  4386. ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  4387. if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
  4388. for(var p = 0 ; p < x_points.length ; p = p+2 ){\
  4389.  ctx.beginPath();\
  4390.  ctx.moveTo(x_points[p],y_points[p]);\
  4391.  ctx.lineTo(x_points[p+1],y_points[p+1]);\
  4392.  ctx.closePath();\
  4393.  ctx.stroke();\
  4394.  }\
  4395.  ctx.restore();\
  4396.  return;\
  4397. };");
  4398.     break;
  4399.    
  4400.     case DRAW_LINES:/*  used for userdraw */
  4401. fprintf(js_include_file,"\n<!-- draw lines -->\n\
  4402. function calc_line(x1,x2,y1,y2){\
  4403. var marge = 2;\
  4404. if(x1 < x2+marge && x1>x2-marge){\
  4405.  return [x1,0,x1,ysize];\
  4406. };\
  4407. if(y1 < y2+marge && y1>y2-marge){\
  4408.  return [0,y1,xsize,y1];\
  4409. };\
  4410. var Y1 = y1 - (x1)*(y2 - y1)/(x2 - x1);\
  4411. var Y2 = y1 + (xsize - x1)*(y2 - y1)/(x2 - x1);\
  4412. return [0,Y1,xsize,Y2];\
  4413. };\
  4414. draw_lines = function(ctx,x_points,y_points,line_width,stroke_color,stroke_opacity,use_dashed,dashtype0,dashtype1,use_rotate,angle,use_translate,vector){\
  4415. ctx.save();\
  4416. var line = new Array(4);\
  4417. if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
  4418. if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
  4419. ctx.lineWidth = line_width;\
  4420. ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  4421. if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
  4422. for(var p = 0 ; p < x_points.length ; p = p+2 ){\
  4423.  line = calc_line(x_points[p],x_points[p+1],y_points[p],y_points[p+1]);\
  4424.  ctx.beginPath();\
  4425.  ctx.moveTo(line[0],line[1]);\
  4426.  ctx.lineTo(line[2],line[3]);\
  4427.  ctx.closePath();\
  4428.  ctx.stroke();\
  4429.  }\
  4430.  ctx.restore();\
  4431.  return;\
  4432. };");
  4433.     break;
  4434.  
  4435.     case DRAW_CROSSHAIRS:/*  used for userdraw */
  4436. fprintf(js_include_file,"\n<!-- draw crosshairs  -->\n\
  4437. draw_crosshairs = function(ctx,x_points,y_points,line_width,crosshair_size,stroke_color,stroke_opacity,use_rotate,angle,use_translate,vector){\
  4438. if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
  4439. if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
  4440. ctx.lineWidth = line_width;\
  4441. ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  4442. var x1,x2,y1,y2;\
  4443. for(var p = 0 ; p < x_points.length ; p++ ){\
  4444.  x1 = x_points[p] - crosshair_size;\
  4445.  x2 = x_points[p] + crosshair_size;\
  4446.  y1 = y_points[p] - crosshair_size;\
  4447.  y2 = y_points[p] + crosshair_size;\
  4448.  ctx.beginPath();\
  4449.  ctx.moveTo(x1,y1);\
  4450.  ctx.lineTo(x2,y2);\
  4451.  ctx.closePath();\
  4452.  ctx.stroke();\
  4453.  ctx.beginPath();\
  4454.  ctx.moveTo(x2,y1);\
  4455.  ctx.lineTo(x1,y2);\
  4456.  ctx.closePath();\
  4457.  ctx.stroke();\
  4458. }\
  4459. ctx.restore();\
  4460.  return;\
  4461. };");
  4462.     break;
  4463.  
  4464.     case DRAW_RECTS:/*  used for userdraw */
  4465. fprintf(js_include_file,"\n<!-- draw rects -->\n\
  4466. 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_translate,vector){\
  4467. ctx.save();\
  4468. if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
  4469. if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
  4470. ctx.lineWidth = line_width;\
  4471. ctx.strokeStyle = \"rgba('+stroke_color+','+stroke_opacity+')\";\
  4472. if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];}};\
  4473. for(var p = 0 ; p < x_points.length ; p = p + 2){\
  4474.  ctx.beginPath();\
  4475.  ctx.rect(x_points[p],y_points[p],x_points[p+1]-x_points[p],y_points[p+1]-y_points[p]);\
  4476.  ctx.closePath();\
  4477.  if(use_filled == 1 ){ctx.fillStyle = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";ctx.fill();}\
  4478.  ctx.stroke();\
  4479. };\
  4480. ctx.restore();\
  4481. return;\
  4482. };");
  4483.     break;
  4484.  
  4485.     case DRAW_ROUNDRECTS:/*  used for userdraw */
  4486. fprintf(js_include_file,"\n<!-- draw round rects -->\n\
  4487. 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_translate,vector){\
  4488. ctx.save();\
  4489. if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
  4490. if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
  4491. if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
  4492. var x,y,w,h,r;\
  4493. for(var p = 0; p < x_points.length; p = p+2){\
  4494.  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);\
  4495.  ctx.beginPath();ctx.moveTo(x + r, y);\
  4496.  ctx.lineTo(x + w - r, y);\
  4497.  ctx.quadraticCurveTo(x + w, y, x + w, y + r);\
  4498.  ctx.lineTo(x + w, y + h - r);\
  4499.  ctx.quadraticCurveTo(x + w, y + h, x + w - r, y + h);\
  4500.  ctx.lineTo(x + r, y + h);\
  4501.  ctx.quadraticCurveTo(x, y + h, x, y + h - r);\
  4502.  ctx.lineTo(x, y + r);\
  4503.  ctx.quadraticCurveTo(x, y, x + r, y);\
  4504.  ctx.closePath();if( use_dashed == 1 ){ctx.setLineDash([dashtype0,dashtype1]);};\
  4505.  ctx.strokeStyle =\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  4506.  if( use_filled == 1 ){ctx.fillStyle =\"rgba(\"+fill_color+\",\"+fill_opacity+\")\";ctx.fill();};\
  4507.  ctx.stroke();\
  4508. }\
  4509. ctx.restore();\
  4510. };");
  4511.     break;
  4512.  
  4513.     case DRAW_ELLIPSES:/* not  used for userdraw */
  4514. fprintf(js_include_file,"\n<!-- draw ellipses -->\n\
  4515. 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_translate,vector){\
  4516. var obj;\
  4517. if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
  4518.  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
  4519. }\
  4520. else\
  4521. {\
  4522.  obj = create_canvas%d(canvas_type,xsize,ysize);\
  4523. };\
  4524. var ctx = obj.getContext(\"2d\");\
  4525. ctx.save();\
  4526. if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
  4527. if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
  4528. var cx,cy,ry,rx;\
  4529. ctx.lineWidth = line_width;\
  4530. if( use_filled == 1 ){ctx.fillStyle =\"rgba(\"+fill_color+\",\"+fill_opacity+\")\";};\
  4531. if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
  4532. ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  4533. for(var p=0;p< x_points.length;p = p+2){\
  4534.  ctx.beginPath();\
  4535.  cx = x_points[p];cy = y_points[p];rx = 0.25*x_points[p+1];ry = 0.25*y_points[p+1];\
  4536.  ctx.translate(cx - rx, cy - ry);\
  4537.  ctx.scale(rx, ry);\
  4538.  ctx.arc(1, 1, 1, 0, 2 * Math.PI, false);\
  4539.  if( use_filled == 1 ){ctx.fill();}\
  4540.  ctx.stroke();\
  4541. };\
  4542. ctx.restore();\
  4543. };",canvas_root_id,canvas_root_id,canvas_root_id);
  4544.     break;
  4545.  
  4546.     case DRAW_PATHS: /*  used for userdraw */
  4547. fprintf(js_include_file,"\n<!-- draw paths -->\n\
  4548. 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_translate,vector){\
  4549. ctx.save();\
  4550. if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
  4551. if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
  4552. ctx.lineWidth = line_width;\
  4553. ctx.lineJoin = \"round\";\
  4554. ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  4555. ctx.beginPath();\
  4556. ctx.moveTo(x_points[0],y_points[0]);\
  4557. for(var p = 1 ; p < x_points.length ; p++ ){ctx.lineTo(x_points[p],y_points[p]);}\
  4558. if(closed_path == 1){ctx.lineTo(x_points[0],y_points[0]);ctx.closePath();}\
  4559. if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
  4560. if(use_filled == 1){ctx.fillStyle = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";ctx.fill();}\
  4561. ctx.stroke();\
  4562. ctx.restore();\
  4563. return;\
  4564. };");
  4565.    
  4566.     break;
  4567.     case DRAW_ARROWS:/*  used for userdraw */
  4568. fprintf(js_include_file,"\n<!-- draw arrows -->\n\
  4569. 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_translate,vector){\
  4570. ctx.save();\
  4571. if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
  4572. if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
  4573. ctx.strokeStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  4574. ctx.fillStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  4575. ctx.lineWidth = line_width;\
  4576. if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
  4577. ctx.lineCap = \"round\";\
  4578. ctx.save();\
  4579. var x1,y1,x2,y2,dx,dy,len;\
  4580. for(var p = 0 ; p < x_points.length - 1 ; p = p +2){\
  4581.   ctx.restore();ctx.save();\
  4582.   x1 = x_points[p];y1 = y_points[p];x2 = x_points[p+1];y2 = y_points[p+1];dx = x2 - x1;dy = y2 - y1;\
  4583.   len = Math.sqrt(dx*dx+dy*dy);\
  4584.   ctx.translate(x2,y2);\
  4585.   ctx.rotate(Math.atan2(dy,dx));\
  4586.   ctx.lineCap = \"round\";\
  4587.   ctx.beginPath();\
  4588.   ctx.moveTo(0,0);\
  4589.   ctx.lineTo(-len,0);\
  4590.   ctx.closePath();\
  4591.   ctx.stroke();\
  4592.   ctx.beginPath();\
  4593.   ctx.moveTo(0,0);\
  4594.   ctx.lineTo(-1*arrow_head,-0.5*arrow_head);\
  4595.   ctx.lineTo(-1*arrow_head, 0.5*arrow_head);\
  4596.   ctx.closePath();\
  4597.   ctx.fill();\
  4598.   if( type == 2 ){\
  4599.     ctx.restore();\
  4600.     ctx.save();\
  4601.     ctx.translate(x1,y1);\
  4602.     ctx.rotate(Math.atan2(-dy,-dx));\
  4603.     ctx.beginPath();\
  4604.     ctx.moveTo(0,0);\
  4605.     ctx.lineTo(-1*arrow_head,-0.5*arrow_head);\
  4606.     ctx.lineTo(-1*arrow_head, 0.5*arrow_head);\
  4607.     ctx.closePath();\
  4608.     ctx.stroke();\
  4609.     ctx.fill();\
  4610.   }\
  4611.  }\
  4612.  ctx.restore();\
  4613.  return;\
  4614. };");
  4615.     break;
  4616.  
  4617.     case DRAW_VIDEO:/* not  used for userdraw */
  4618. fprintf(js_include_file,"\n<!-- draw video -->\n\
  4619. draw_video = function(canvas_root_id,x,y,w,h,URL){\
  4620. var canvas_div = document.getElementById(\"canvas_div\"+canvas_root_id);\
  4621. var video_div = document.createElement(\"div\");\
  4622. canvas_div.appendChild(video_div);\
  4623. video_div.style.position = \"absolute\";\
  4624. video_div.style.left = x+\"px\";\
  4625. video_div.style.top = y+\"px\";\
  4626. video_div.style.width = w+\"px\";\
  4627. video_div.style.height = h+\"px\";\
  4628. var video = document.createElement(\"video\");\
  4629. video_div.appendChild(video);\
  4630. video.style.width = w+\"px\";\
  4631. video.style.height = h+\"px\";\
  4632. video.autobuffer = true;\
  4633. video.controls = true;video.autoplay = false;\
  4634. var src = document.createElement(\"source\");\
  4635. src.type = \"video/mp4\";\
  4636. src.src = URL;\
  4637. video.appendChild(src);\
  4638. video.load();\
  4639. return;\
  4640. };");    
  4641.     break;
  4642.    
  4643.     case DRAW_AUDIO:/* not used for userdraw */
  4644. fprintf(js_include_file,"\n<!-- draw audio -->\n\
  4645. draw_audio = function(canvas_root_id,x,y,w,h,loop,visible,URL1,URL2){\
  4646. var canvas_div = document.getElementById(\"canvas_div\"+canvas_root_id);\
  4647. var audio_div = document.createElement(\"div\");\
  4648. canvas_div.appendChild(audio_div);\
  4649. audio_div.style.position = \"absolute\";\
  4650. audio_div.style.left = x+\"px\";\
  4651. audio_div.style.top = y+\"px\";\
  4652. audio_div.style.width = w+\"px\";\
  4653. audio_div.style.height = h+\"px\";\
  4654. var audio = document.createElement(\"audio\");\
  4655. audio_div.appendChild(audio);\
  4656. audio.setAttribute(\"style\",\"width:\"+w+\"px;height:\"+h+\"px\");\
  4657. audio.autobuffer = true;\
  4658. if(visible == 1 ){ audio.controls = true;audio.autoplay = false;}else{ audio.controls = false;audio.autoplay = true;}\
  4659. if(loop == 1 ){ audio.loop = true;}else{ audio.loop = false;}\
  4660. var src1 = document.createElement(\"source\");\
  4661. src1.type = \"audio/ogg\";\
  4662. src1.src = URL1;\
  4663. audio.appendChild(src1);\
  4664. var src2 = document.createElement(\"source\");\
  4665. src2.type = \"audio/mpeg\";\
  4666. src2.src = URL2;\
  4667. audio.appendChild(src2);\
  4668. audio.load();\
  4669. return;\
  4670. };");
  4671.     break;
  4672.    
  4673.     case DRAW_HTTP:/* not  used for userdraw */
  4674. fprintf(js_include_file,"\n<!-- draw http -->\n\
  4675. draw_http = function(canvas_root_id,x,y,w,h,URL){\
  4676. var canvas_div = document.getElementById(\"canvas_div\"+canvas_root_id);\
  4677. var http_div = document.createElement(\"div\");\
  4678. var iframe = document.createElement(\"iframe\");\
  4679. canvas_div.appendChild(http_div);\
  4680. http_div.appendChild(iframe);\
  4681. iframe.src = URL;\
  4682. iframe.setAttribute(\"width\",w);\
  4683. iframe.setAttribute(\"height\",h);\
  4684. return;\
  4685. };");
  4686.     break;
  4687.    
  4688.     case DRAW_XML:
  4689. fprintf(js_include_file,"\n<!-- draw xml -->\n\
  4690. draw_xml = function(canvas_root_id,x,y,w,h,mathml,onclick){\
  4691. var canvas_div = document.getElementById(\"canvas_div\"+canvas_root_id);\
  4692. var xml_div = document.createElement(\"div\");\
  4693. canvas_div.appendChild(xml_div);\
  4694. xml_div.innerHTML = mathml;\
  4695. if(onclick != 0){\
  4696.  xml_div.onclick = function(){\
  4697.   reply[0] = onclick;\
  4698.   alert(\"send \"+onclick+\" ?\");\
  4699.  };\
  4700. };\
  4701. xml_div.style.position = \"absolute\";\
  4702. xml_div.style.left = x+\"px\";\
  4703. xml_div.style.top = y+\"px\";\
  4704. xml_div.style.width = w+\"px\";\
  4705. xml_div.style.height = h+\"px\";\
  4706. return;\
  4707. };"
  4708. );
  4709.     break;
  4710.     case DRAW_SGRAPH:
  4711. /*
  4712.  xstart = given
  4713.  ystart = given
  4714.  sgraph(canvas_type,precision,xmajor,ymajor,xminor,yminor,majorcolor,minorcolor,fontfamily)
  4715. */
  4716. fprintf(js_include_file,"\n<!-- draw sgraph -->\n\
  4717. draw_sgraph = function(canvas_type,precision,xmajor,ymajor,xminor,yminor,majorcolor,minorcolor,fontfamily,opacity,font_size){\
  4718. 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);};\
  4719. var ctx = obj.getContext(\"2d\");\
  4720. ctx.font = fontfamily;\
  4721. var minor_opacity = 0.8*opacity;\
  4722. ctx.clearRect(0,0,xsize,ysize);\
  4723. var d_x =  1.8*font_size;\
  4724. var d_y =  ctx.measureText(\"+ymax+\").width;\
  4725. var dx = xsize / (xmax - xmin);\
  4726. var dy = ysize / (ymax - ymin);\
  4727. var zero_x = d_y + dx;\
  4728. var zero_y = ysize - dy - d_x;\
  4729. var snor_x;\
  4730. if( xstart != xmin){\
  4731.  snor_x = 0.1*xsize;\
  4732. }\
  4733. else\
  4734. {\
  4735.  snor_x = 0;\
  4736.  xstart = xmin;\
  4737. };\
  4738. ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
  4739. ctx.lineWidth = 2;\
  4740. ctx.beginPath();\
  4741. ctx.moveTo(xsize,zero_y);\
  4742. ctx.lineTo(zero_x,zero_y);\
  4743. ctx.lineTo(zero_x,0);\
  4744. ctx.stroke();\
  4745. ctx.closePath();\
  4746. ctx.beginPath();\
  4747. ctx.moveTo(zero_x,zero_y);\
  4748. ctx.lineTo(zero_x + 0.25*snor_x,zero_y - 0.1*snor_x);\
  4749. ctx.lineTo(zero_x + 0.5*snor_x,zero_y + 0.1*snor_x);\
  4750. ctx.lineTo(zero_x + 0.75*snor_x,zero_y - 0.1*snor_x);\
  4751. ctx.lineTo(zero_x + snor_x,zero_y);\
  4752. ctx.stroke();\
  4753. ctx.closePath();\
  4754. ctx.beginPath();\
  4755. var num = xstart;\
  4756. var flipflop = 1;\
  4757. var step_x = xmajor*(xsize - zero_x - snor_x)/(xmax - xstart);\
  4758. for(var x = zero_x+snor_x ; x < xsize;x = x + step_x){\
  4759.   if( 0.5*ctx.measureText(num).width > step_x ){\
  4760.    if( flipflop == 1 ){flipflop = 0;}else{flipflop = 1;};\
  4761.   };\
  4762.   if( flipflop == 1){\
  4763.    ctx.fillText(num,x - 0.5*ctx.measureText(num).width,zero_y+font_size);\
  4764.   }\
  4765.   else\
  4766.   {\
  4767.    ctx.fillText(num,x - 0.5*ctx.measureText(num).width,zero_y+2*font_size);\
  4768.   }\
  4769.   num = num + xmajor;\
  4770. };\
  4771. ctx.stroke();\
  4772. ctx.closePath();\
  4773. ctx.lineWidth = 1;\
  4774. ctx.beginPath();\
  4775. for(var x = zero_x+snor_x ; x < xsize;x = x + step_x){\
  4776.   ctx.moveTo(x,zero_y);\
  4777.   ctx.lineTo(x,0);\
  4778. };\
  4779. ctx.stroke();\
  4780. ctx.closePath();\
  4781. if( xminor > 1){\
  4782.  ctx.lineWidth = 0.5;\
  4783.  ctx.beginPath();\
  4784.  ctx.strokeStyle = \"rgba(\"+minorcolor+\",\"+minor_opacity+\")\";\
  4785.  var minor_step_x = step_x / xminor;\
  4786.  var nx;\
  4787.  for(var x = zero_x+snor_x; x < xsize;x = x + step_x){\
  4788.    num = 1;\
  4789.    for(var p = 1 ; p < xminor ; p++){\
  4790.     nx = x + num*minor_step_x;\
  4791.     ctx.moveTo(nx,zero_y);\
  4792.     ctx.lineTo(nx,0);\
  4793.     num++;\
  4794.    };\
  4795.  };\
  4796.  ctx.stroke();\
  4797.  ctx.closePath();\
  4798.  ctx.beginPath();\
  4799.  ctx.lineWidth = 2;\
  4800.  ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
  4801.  for(var x = zero_x+snor_x ; x < xsize;x = x + step_x){\
  4802.   ctx.moveTo(x,zero_y);ctx.lineTo(x,zero_y - 12);\
  4803.  };\
  4804.  for(var x = zero_x+snor_x ; x < xsize;x = x + minor_step_x){\
  4805.   ctx.moveTo(x,zero_y);ctx.lineTo(x,zero_y - 6);\
  4806.  };\
  4807.  ctx.stroke();\
  4808.  ctx.closePath();\
  4809.  ctx.lineWidth = 0.5;\
  4810. };\
  4811. xmin = xstart - (xmajor*(zero_x+snor_x)/step_x);\
  4812. if( ystart != ymin){\
  4813.  snor_y = 0.1*ysize;\
  4814. }\
  4815. else\
  4816. {\
  4817.  snor_y = 0;\
  4818.  ystart = ymin;\
  4819. };\
  4820. ctx.lineWidth = 2;\
  4821. ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
  4822. ctx.beginPath();\
  4823. ctx.moveTo(zero_x,zero_y);\
  4824. ctx.lineTo(zero_x - 0.1*snor_y,zero_y - 0.25*snor_y);\
  4825. ctx.lineTo(zero_x + 0.1*snor_y,zero_y - 0.5*snor_y);\
  4826. ctx.lineTo(zero_x - 0.1*snor_y,zero_y - 0.75*snor_y);\
  4827. ctx.lineTo(zero_x,zero_y - snor_y);\
  4828. ctx.stroke();\
  4829. ctx.closePath();\
  4830. ctx.beginPath();\
  4831. ctx.lineWidth = 1;\
  4832. num = ystart;\
  4833. var step_y = ymajor*(zero_y - snor_y)/(ymax - ystart);\
  4834. for(var y = zero_y - snor_y ; y > 0; y = y - step_y){\
  4835.  ctx.moveTo(zero_x,y);\
  4836.  ctx.lineTo(xsize,y);\
  4837.  ctx.fillText(num,zero_x - ctx.measureText(num+\" \").width,parseInt(y+0.2*font_size));\
  4838.  num = num + ymajor;\
  4839. };\
  4840. ctx.stroke();\
  4841. ctx.closePath();\
  4842. if( yminor > 1){\
  4843.  ctx.lineWidth = 0.5;\
  4844.  ctx.beginPath();\
  4845.  ctx.strokeStyle = \"rgba(\"+minorcolor+\",\"+minor_opacity+\")\";\
  4846.  var minor_step_y = step_y / yminor;\
  4847.  var ny;\
  4848.  for(var y = 0 ; y < zero_y - snor_y ;y = y + step_y){\
  4849.   num = 1;\
  4850.   for(var p = 1 ;p < yminor;p++){\
  4851.     ny = y + num*minor_step_y;\
  4852.     ctx.moveTo(zero_x,ny);\
  4853.     ctx.lineTo(xsize,ny);\
  4854.     num++;\
  4855.    };\
  4856.  };\
  4857.  ctx.stroke();\
  4858.  ctx.closePath();\
  4859.  ctx.lineWidth = 2;\
  4860.  ctx.beginPath();\
  4861.  ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
  4862.  for(var y = zero_y - snor_y ; y > 0 ;y = y - step_y){\
  4863.   ctx.moveTo(zero_x,y);\
  4864.   ctx.lineTo(zero_x+12,y);\
  4865.  };\
  4866.  for(var y = zero_y - snor_y ; y > 0 ;y = y - minor_step_y){\
  4867.   ctx.moveTo(zero_x,y);\
  4868.   ctx.lineTo(zero_x+6,y);\
  4869.  };\
  4870.  ctx.stroke();\
  4871.  ctx.closePath();\
  4872. };\
  4873. ymin = ystart - (ymajor*(ysize - zero_y + snor_y)/step_y);\
  4874. if( typeof legend%d  !== 'undefined' ){\
  4875.  ctx.globalAlpha = 1.0;\
  4876.  var y_offset = 2*font_size;\
  4877.  var txt;var txt_size;\
  4878.  var x_offset = xsize - 2*font_size;\
  4879.  var l_length = legend%d.length;var barcolor = new Array();\
  4880.  if( typeof legendcolors%d !== 'undefined' ){\
  4881.   for(var p = 0 ; p < l_length ; p++){\
  4882.    barcolor[p] = legendcolors%d[p];\
  4883.   };\
  4884.  }else{\
  4885.   if( barcolor.length == 0 ){\
  4886.    for(var p = 0 ; p < l_length ; p++){\
  4887.     barcolor[p] = stroke_color;\
  4888.    };\
  4889.   };\
  4890.  };\
  4891.  for(var p = 0; p < l_length; p++){\
  4892.   ctx.fillStyle = barcolor[p];\
  4893.   txt = legend%d[p];\
  4894.   txt_size = ctx.measureText(txt).width;\
  4895.   ctx.fillText(legend%d[p],x_offset - txt_size, y_offset);\
  4896.   y_offset = parseInt(y_offset + 1.5*font_size);\
  4897.  };\
  4898. };\
  4899. if( typeof xaxislabel !== 'undefined' ){\
  4900.   ctx.fillStyle = \'#000000\';\
  4901.   var txt_size = ctx.measureText(xaxislabel).width + 4 ;\
  4902.   ctx.fillText(xaxislabel,xsize - txt_size, zero_y - 7);\
  4903. };\
  4904. if( typeof yaxislabel !== 'undefined'){\
  4905.   ctx.save();\
  4906.   ctx.fillStyle = \'#000000\';\
  4907.   var txt_size = ctx.measureText(yaxislabel).width;\
  4908.   ctx.translate(zero_x+8 + font_size,txt_size+font_size);\
  4909.   ctx.rotate(-0.5*Math.PI);\
  4910.   ctx.fillText(yaxislabel,0,0);\
  4911.   ctx.save();\
  4912. };\
  4913. };\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);
  4914.     break;
  4915.  
  4916.     case DRAW_GRID:/* not used for userdraw */
  4917. fprintf(js_include_file,"\n<!-- draw grid -->\n\
  4918. 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_translate,vector,use_dashed,dashtype0,dashtype1,font_color,fill_opacity){\
  4919. var obj;\
  4920. if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
  4921. obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
  4922. }\
  4923. else\
  4924. {\
  4925. obj = create_canvas%d(canvas_type,xsize,ysize);\
  4926. };\
  4927. var ctx = obj.getContext(\"2d\");\
  4928. ctx.clearRect(0,0,xsize,ysize);\
  4929. if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
  4930. ctx.save();\
  4931. if( use_translate == 1 ){ctx.translate(vector[0],vector[1]);};\
  4932. if( use_rotate == 1 ){ctx.translate(x2px(0),y2px(0));ctx.rotate(angle*Math.PI/180);ctx.translate(-1*(x2px(0)),-1*(y2px(0)));};\
  4933. var stroke_color = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  4934. ctx.fillStyle = \"rgba(\"+font_color+\",\"+1.0+\")\";\
  4935. var axis_color = \"rgba(\"+axis_color+\",\"+stroke_opacity+\")\";\
  4936. ctx.font = font_family;\
  4937. var xstep = xsize*xmajor/(xmax - xmin);\
  4938. var ystep = ysize*ymajor/(ymax - ymin);\
  4939. var x2step = xstep / xminor;\
  4940. var y2step = ystep / yminor;\
  4941. var zero_x;var zero_y;var f_x;var f_y;\
  4942. if(xmin < 0 ){zero_x = x2px(0);f_x = 1;}else{zero_x = x2px(xmin);f_x = -1;}\
  4943. if(ymin < 0 ){zero_y = y2px(0);f_y = 1;}else{zero_y = y2px(ymin);f_y = -1;}\
  4944. ctx.beginPath();\
  4945. ctx.lineWidth = line_width;\
  4946. ctx.strokeStyle = stroke_color;\
  4947. for(var p = zero_x ; p < xsize; p = p + xstep){\
  4948. ctx.moveTo(p,0);\
  4949. ctx.lineTo(p,ysize);\
  4950. };\
  4951. for(var p = zero_x ; p > 0; p = p - xstep){\
  4952. ctx.moveTo(p,0);\
  4953. ctx.lineTo(p,ysize);\
  4954. };\
  4955. for(var p = zero_y ; p < ysize; p = p + ystep){\
  4956. ctx.moveTo(0,p);\
  4957. ctx.lineTo(xsize,p);\
  4958. };\
  4959. for(var p = zero_y ; p > 0; p = p - ystep){\
  4960. ctx.moveTo(0,p);\
  4961. ctx.lineTo(xsize,p);\
  4962. };\
  4963. if( typeof xaxislabel !== 'undefined' ){\
  4964. ctx.save();\
  4965. ctx.font = \"italic \"+font_size+\"px Ariel\";\
  4966. var corr =  ctx.measureText(xaxislabel).width;\
  4967. ctx.fillText(xaxislabel,xsize - 1.5*corr,zero_y - tics_length - 0.4*font_size);\
  4968. ctx.restore();\
  4969. };\
  4970. if( typeof yaxislabel !== 'undefined' ){\
  4971. ctx.save();\
  4972. ctx.font = \"italic \"+font_size+\"px Ariel\";\
  4973. corr =  ctx.measureText(yaxislabel).width;\
  4974. ctx.translate(zero_x+tics_length + font_size,corr+font_size);\
  4975. ctx.rotate(-0.5*Math.PI);\
  4976. ctx.fillText(yaxislabel,0,0);\
  4977. ctx.restore();\
  4978. };\
  4979. ctx.stroke();\
  4980. ctx.closePath();\
  4981. if( use_axis == 1 ){\
  4982. ctx.beginPath();\
  4983. ctx.strokeStyle = stroke_color;\
  4984. ctx.lineWidth = 0.6*line_width;\
  4985. for(var p = zero_x ; p < xsize; p = p + x2step){\
  4986.  ctx.moveTo(p,0);\
  4987.  ctx.lineTo(p,ysize);\
  4988. };\
  4989. for(var p = zero_x ; p > 0; p = p - x2step){\
  4990.  ctx.moveTo(p,0);\
  4991.  ctx.lineTo(p,ysize);\
  4992. };\
  4993. for(var p = zero_y ; p < ysize; p = p + y2step){\
  4994.  ctx.moveTo(0,p);\
  4995.  ctx.lineTo(xsize,p);\
  4996. };\
  4997. for(var p = zero_y ; p > 0; p = p - y2step){\
  4998.  ctx.moveTo(0,p);\
  4999.  ctx.lineTo(xsize,p);\
  5000. };\
  5001. ctx.stroke();\
  5002. ctx.closePath();\
  5003. ctx.beginPath();\
  5004. ctx.lineWidth = 2*line_width;\
  5005. ctx.strokeStyle = axis_color;\
  5006. ctx.moveTo(0,zero_y);\
  5007. ctx.lineTo(xsize,zero_y);\
  5008. ctx.moveTo(zero_x,0);\
  5009. ctx.lineTo(zero_x,ysize);\
  5010. ctx.stroke();\
  5011. ctx.closePath();\
  5012. ctx.lineWidth = line_width+0.5;\
  5013. ctx.beginPath();\
  5014. for(var p = zero_x ; p < xsize; p = p + xstep){\
  5015.  ctx.moveTo(p,zero_y-tics_length);\
  5016.  ctx.lineTo(p,zero_y+tics_length);\
  5017. };\
  5018. for(var p = zero_x ; p > 0; p = p - xstep){\
  5019.  ctx.moveTo(p,zero_y-tics_length);\
  5020.  ctx.lineTo(p,zero_y+tics_length);\
  5021. };\
  5022. for(var p = zero_y ; p < ysize; p = p + ystep){\
  5023.  ctx.moveTo(zero_x-tics_length,p);\
  5024.  ctx.lineTo(zero_x+tics_length,p);\
  5025. };\
  5026. for(var p = zero_y ; p > 0; p = p - ystep){\
  5027.  ctx.moveTo(zero_x-tics_length,p);\
  5028.  ctx.lineTo(zero_x+tics_length,p);\
  5029. };\
  5030. for(var p = zero_x ; p < xsize; p = p + x2step){\
  5031.  ctx.moveTo(p,zero_y-0.5*tics_length);\
  5032.  ctx.lineTo(p,zero_y+0.5*tics_length);\
  5033. };\
  5034. for(var p = zero_x ; p > 0; p = p - x2step){\
  5035.  ctx.moveTo(p,zero_y-0.5*tics_length);\
  5036.  ctx.lineTo(p,zero_y+0.5*tics_length);\
  5037. };\
  5038. for(var p = zero_y ; p < ysize; p = p + y2step){\
  5039.  ctx.moveTo(zero_x-0.5*tics_length,p);\
  5040.  ctx.lineTo(zero_x+0.5*tics_length,p);\
  5041. };\
  5042. for(var p = zero_y ; p > 0; p = p - y2step){\
  5043.  ctx.moveTo(zero_x-0.5*tics_length,p);\
  5044.  ctx.lineTo(zero_x+0.5*tics_length,p);\
  5045. };\
  5046. ctx.stroke();\
  5047. ctx.closePath();\
  5048. if( use_axis_numbering == 1 ){\
  5049.  var shift = zero_y+2*font_size;var flip=0;var skip=0;var corr;var cnt;var disp_cnt;var prec;\
  5050.  if( x_strings != null ){\
  5051.   var f = 1.4;\
  5052.   var len = x_strings.length;if((len/2+0.5)%%2 == 0){ alert(\"xaxis number unpaired:  text missing ! \");return;};\
  5053.   for(var p = 0 ; p < len ; p = p+2){\
  5054.     var x_nums = x2px(eval(x_strings[p]));\
  5055.     var x_text = x_strings[p+1];\
  5056.     corr = ctx.measureText(x_text).width;\
  5057.     skip = 1.2*corr/xstep;\
  5058.     if( zero_y+2*font_size > ysize ){shift = ysize - 2*font_size;};\
  5059.     if( skip > 1 ){if(flip == 0 ){flip = 1; shift = shift + font_size;}else{flip = 0; shift = shift - font_size;}};\
  5060.     ctx.fillText(x_text,parseInt(x_nums-0.5*corr),shift);\
  5061.   }\
  5062.  }\
  5063.  else\
  5064.  {\
  5065.   corr=0;skip = 1;cnt = px2x(zero_x);\
  5066.   prec = Math.log(precision)/(Math.log(10));\
  5067.   for( var p = zero_x ; p < xsize ; p = p+xstep){\
  5068.    if(skip == 0 ){\
  5069.      disp_cnt = cnt.toFixed(prec);\
  5070.      corr = ctx.measureText(disp_cnt).width;\
  5071.      skip = parseInt(1.2*corr/xstep);\
  5072.      ctx.fillText(disp_cnt,p-0.5*corr,parseInt(zero_y+(1.4*f_x*font_size)));\
  5073.    }\
  5074.    else\
  5075.    {\
  5076.     skip--;\
  5077.    };\
  5078.    cnt = cnt + xmajor;\
  5079.   };\
  5080.   cnt = px2x(zero_x);skip = 1;\
  5081.   for( var p = zero_x ; p > 0 ; p = p-xstep){\
  5082.    if(skip == 0 ){\
  5083.     disp_cnt = cnt.toFixed(prec);\
  5084.     corr = ctx.measureText(disp_cnt).width;\
  5085.     skip = parseInt(1.2*corr/xstep);\
  5086.     ctx.fillText(disp_cnt,p-0.5*corr,parseInt(zero_y+(1.4*f_x*font_size)));\
  5087.    }\
  5088.    else\
  5089.    {\
  5090.     skip--;\
  5091.    };\
  5092.    cnt = cnt - xmajor;\
  5093.   };\
  5094.  };\
  5095.  if( y_strings != null ){\
  5096.   var len = y_strings.length;if((len/2+0.5)%%2 == 0){ alert(\"yaxis number unpaired:  text missing ! \");return;};\
  5097.   for(var p = 0 ; p < len ; p = p+2){\
  5098.    var y_nums = y2px(eval(y_strings[p]));\
  5099.    var y_text = y_strings[p+1];\
  5100.    var f = 1.4;\
  5101.    corr = 2 + tics_length + ctx.measureText(y_text).width;\
  5102.    if( corr > zero_x){corr = parseInt(zero_x+2); }\
  5103.    ctx.fillText(y_text,zero_x - corr,y_nums);\
  5104.   };\
  5105.  }\
  5106.  else\
  5107.  {\
  5108.   corr = 0;cnt = px2y(zero_y);skip = 1;\
  5109.   for( var p = zero_y ; p < ysize ; p = p+ystep){\
  5110.    if(skip == 0 ){\
  5111.     skip = parseInt(1.4*font_size/ystep);\
  5112.     disp_cnt = cnt.toFixed(prec);\
  5113.     if(f_y == 1){corr = 2 + tics_length + ctx.measureText(disp_cnt).width;}\
  5114.     ctx.fillText(disp_cnt,parseInt(zero_x - corr),parseInt(p+(0.4*font_size)));\
  5115.    }\
  5116.    else\
  5117.    {\
  5118.     skip--;\
  5119.    };\
  5120.    cnt = cnt - ymajor;\
  5121.   }\
  5122.   corr = 0;cnt = px2y(zero_y);skip = 1;\
  5123.   for( var p = zero_y ; p > 0 ; p = p-ystep){\
  5124.    if(skip == 0 ){\
  5125.     skip = parseInt(1.4*font_size/ystep);\
  5126.     disp_cnt = cnt.toFixed(prec);\
  5127.     if(f_y == 1){corr = 2 + tics_length + ctx.measureText(disp_cnt).width;}\
  5128.     ctx.fillText(disp_cnt,parseInt(zero_x - corr),parseInt(p+(0.4*font_size)));\
  5129.    }\
  5130.    else\
  5131.    {\
  5132.     skip--;\
  5133.    };\
  5134.    cnt = cnt + ymajor;\
  5135.   }\
  5136.  };\
  5137. };\
  5138. ctx.strokeStyle = stroke_color;\
  5139. ctx.lineWidth = 2;\
  5140. ctx.beginPath();\
  5141. ctx.rect(0,0,xsize,ysize);\
  5142. ctx.closePath();\
  5143. ctx.stroke();\
  5144. };\
  5145. if( typeof linegraph_0 !== 'undefined' ){\
  5146. ctx.restore();\
  5147. ctx.save();\
  5148. ctx.globalAlpha = 1.0;\
  5149. var i = 0;\
  5150. var line_name = eval('linegraph_'+i);\
  5151. while ( typeof line_name !== 'undefined' ){\
  5152.  ctx.strokeStyle = 'rgba('+line_name[0]+','+stroke_opacity+')';\
  5153.  ctx.lineWidth = parseInt(line_name[1]);\
  5154.  if(line_name[2] == \"1\"){\
  5155.   var d1 = parseInt(line_name[3]);\
  5156.   var d2 = parseInt(line_name[4]);\
  5157.   if(ctx.setLineDash){ ctx.setLineDash(d1,d2); } else { ctx.mozDash = [d1,d2];};\
  5158.  }\
  5159.  else\
  5160.  {\
  5161.  if(ctx.setLineDash){ctx.setLineDash = null;}\
  5162.  if(ctx.mozDash){ctx.mozDash = null;}\
  5163.  };\
  5164.  var data_x = new Array();\
  5165.  var data_y = new Array();\
  5166.  var lb = line_name.length;\
  5167.  var idx = 0;\
  5168.  for( var p = 5 ; p < lb ; p = p + 2 ){\
  5169.   data_x[idx] = x2px(line_name[p]);\
  5170.   data_y[idx] = y2px(line_name[p+1]);\
  5171.   idx++;\
  5172.  };\
  5173.  for( var p = 0; p < idx ; p++){\
  5174.   ctx.beginPath();\
  5175.   ctx.moveTo(data_x[p],data_y[p]);\
  5176.   ctx.lineTo(data_x[p+1],data_y[p+1]);\
  5177.   ctx.stroke();\
  5178.   ctx.closePath();\
  5179.  };\
  5180.  i++;\
  5181.  try{ line_name = eval('linegraph_'+i); }catch(e){ break; }\
  5182. };\
  5183. };\
  5184. var barcolor = new Array();\
  5185. if( typeof barchart%d  !== 'undefined' ){\
  5186. ctx.restore();\
  5187. ctx.save();\
  5188. ctx.globalAlpha = 1.0;\
  5189. var bar_x = new Array();\
  5190. var bar_y = new Array();\
  5191. var lb = barchart%d.length;\
  5192. var idx = 0;\
  5193. for( var p = 0 ; p < lb ; p = p + 3 ){\
  5194.  bar_x[idx] = x2px(barchart%d[p]);\
  5195.  bar_y[idx] = y2px(barchart%d[p+1]);\
  5196.  barcolor[idx] = barchart%d[p+2];\
  5197.  idx++;\
  5198. };\
  5199. var dx = parseInt(0.6*xstep);\
  5200. ctx.globalAlpha = fill_opacity;\
  5201. for( var p = 0; p < idx ; p++ ){\
  5202.  ctx.beginPath();\
  5203.  ctx.strokeStyle = barcolor[p];\
  5204.  ctx.fillStyle = barcolor[p];\
  5205.  ctx.rect(bar_x[p]-0.5*dx,bar_y[p],dx,zero_y - bar_y[p]);\
  5206.  ctx.fill();\
  5207.  ctx.stroke();\
  5208.  ctx.closePath();\
  5209. };\
  5210. };\
  5211. if( typeof legend%d  !== 'undefined' ){\
  5212. ctx.globalAlpha = 1.0;\
  5213. ctx.font = \"bold \"+font_size+\"px Ariel\";\
  5214. var y_offset = 2*font_size;\
  5215. var txt;var txt_size;\
  5216. var x_offset = xsize - 2*font_size;\
  5217. var l_length = legend%d.length;\
  5218. if( typeof legendcolors%d !== 'undefined' ){\
  5219.  for(var p = 0 ; p < l_length ; p++){\
  5220.    barcolor[p] = legendcolors%d[p];\
  5221.  };\
  5222. }else{\
  5223.  if( barcolor.length == 0 ){\
  5224.   for(var p = 0 ; p < l_length ; p++){\
  5225.    barcolor[p] = stroke_color;\
  5226.   };\
  5227.  };\
  5228. };\
  5229. for(var p = 0; p < l_length; p++){\
  5230.  ctx.fillStyle = barcolor[p];\
  5231.  txt = legend%d[p];\
  5232.  txt_size = ctx.measureText(txt).width;\
  5233.  ctx.fillText(legend%d[p],x_offset - txt_size, y_offset);\
  5234.  y_offset = parseInt(y_offset + 1.5*font_size);\
  5235. };\
  5236. };\
  5237. ctx.restore();\
  5238. return;\
  5239. };",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,canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
  5240.     break;
  5241.    
  5242.     case DRAW_PIECHART:
  5243. fprintf(js_include_file,"\n<!-- draw piechars -->\n\
  5244. function draw_piechart(canvas_type,x_center,y_center,radius, data_color_list,fill_opacity,font_size,font_family){\
  5245. if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
  5246.  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
  5247. }\
  5248. else\
  5249. {\
  5250.  obj = create_canvas%d(canvas_type,xsize,ysize);\
  5251. };\
  5252. var ld = data_color_list.length;\
  5253. var sum = 0;\
  5254. var idx = 0;\
  5255. var colors = new Array();\
  5256. var data = new Array();\
  5257. for(var p = 0;p < ld; p = p + 2){\
  5258.  data[idx] = parseFloat(data_color_list[p]);\
  5259.  sum = sum + data[idx];\
  5260.  colors[idx] = data_color_list[p+1];\
  5261.  idx++;\
  5262. };\
  5263. var ctx = obj.getContext(\"2d\");\
  5264. ctx.save();\
  5265. var angle;\
  5266. var angle_end = 0;\
  5267. var offset = Math.PI / 2;\
  5268. ctx.globalAlpha = fill_opacity;\
  5269. for(var p=0; p < idx; p++){\
  5270.  ctx.beginPath();\
  5271.  ctx.fillStyle = colors[p];\
  5272.  ctx.moveTo(x_center,y_center);\
  5273.  angle = Math.PI * (2 * data[p] / sum);\
  5274.  ctx.arc(x_center,y_center, radius, angle_end - offset, angle_end + angle - offset, false);\
  5275.  ctx.lineTo(x_center, y_center);\
  5276.  ctx.fill();\
  5277.  ctx.closePath();\
  5278.  angle_end  = angle_end + angle;\
  5279. };\
  5280. if( typeof legend%d  !== 'undefined' ){\
  5281.  ctx.globalAlpha = 1.0;\
  5282.  ctx.font = font_size+\"px \"+font_family;\
  5283.  var y_offset = font_size; \
  5284.  var x_offset = 0;\
  5285.  var txt;var txt_size;\
  5286.  for(var p = 0; p < idx; p++){\
  5287.   ctx.fillStyle = colors[p];\
  5288.   txt = legend%d[p];\
  5289.   txt_size = ctx.measureText(txt).width;\
  5290.   if( x_center + radius + txt_size > xsize ){ x_offset =  x_center + radius + txt_size - xsize;} else { x_offset = 0; };\
  5291.   ctx.fillText(legend%d[p],x_center + radius - x_offset, y_center - radius + y_offset);\
  5292.   y_offset = parseInt(y_offset + 1.5*font_size);\
  5293.  };\
  5294. };\
  5295. ctx.restore();\
  5296. };",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
  5297.    
  5298.     break;
  5299.     case DRAW_ARCS:
  5300. fprintf(js_include_file,"\n<!-- draw arcs -->\n\
  5301. draw_arc = function(canvas_type,xc,yc,r,start,end,line_width,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype0,use_rotate,angle,use_translate,vector){\
  5302. var obj;\
  5303. if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
  5304.  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
  5305. }\
  5306. else\
  5307. {\
  5308.  obj = create_canvas%d(canvas_type,xsize,ysize);\
  5309. };\
  5310. var ctx = obj.getContext(\"2d\");\
  5311. ctx.save();\
  5312. if( use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{if(ctx.mozDash){ ctx.mozDash = [dashtype0,dashtype1];};};};\
  5313. if( use_translate == 1 ){ctx.translate(vector[0],vector[1]);};\
  5314. if( use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);};\
  5315. if(end < start){var tmp = end;end = start;start=tmp;};\
  5316. start=360-start;\
  5317. end=360-end;\
  5318. ctx.lineWidth = line_width;\
  5319. ctx.strokeStyle =  \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  5320. if( use_filled == 1 ){\
  5321.  ctx.beginPath();\
  5322.  ctx.fillStyle = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";\
  5323.  var x1 = xc + r*Math.cos(Math.PI*start/180);\
  5324.  var y1 = yc + r*Math.sin(Math.PI*start/180);\
  5325.  var x2 = xc + r*Math.cos(Math.PI*end/180);\
  5326.  var y2 = yc + r*Math.sin(Math.PI*end/180);\
  5327.  ctx.beginPath();\
  5328.  ctx.moveTo(x1,y1);\
  5329.  ctx.lineTo(xc,yc);\
  5330.  ctx.moveTo(xc,yc);\
  5331.  ctx.lineTo(x2,y2);\
  5332.  ctx.closePath();\
  5333.  ctx.arc(xc, yc, r, start*(Math.PI / 180), end*(Math.PI / 180),true);\
  5334.  ctx.fill();\
  5335.  ctx.stroke();\
  5336. }\
  5337. else\
  5338. {\
  5339.    ctx.beginPath();\
  5340.    ctx.arc(xc, yc, r, start*(Math.PI / 180), end*(Math.PI / 180),true);\
  5341.    ctx.stroke();\
  5342.    ctx.closePath();\
  5343. }\
  5344. ctx.restore();\
  5345. };",canvas_root_id,canvas_root_id,canvas_root_id);
  5346.    
  5347.     break;
  5348.     case DRAW_TEXTS:
  5349. fprintf(js_include_file,"\n<!-- draw text -->\n\
  5350. draw_text = function(canvas_type,x,y,font_size,font_family,stroke_color,stroke_opacity,angle2,text,use_rotate,angle,use_translate,vector){\
  5351.  var obj;\
  5352.  if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
  5353.   obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
  5354.  }\
  5355.  else\
  5356.  {\
  5357.   obj = create_canvas%d(canvas_type,xsize,ysize);\
  5358.  };\
  5359.  var ctx = obj.getContext(\"2d\");\
  5360.  if(angle2 == 0 && angle != 0){\
  5361.   ctx.save();\
  5362.   if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
  5363.   if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
  5364.  };\
  5365.  if( font_family.indexOf('px') != null ){\
  5366.   ctx.font = font_family;\
  5367.  }\
  5368.  else\
  5369.  {\
  5370.   ctx.font = \"+font_size+'px '+font_family \";\
  5371.  };\
  5372.  ctx.fillStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  5373.  if(angle2 != 0){\
  5374.   ctx.save();\
  5375.   ctx.translate(x,y);\
  5376.   ctx.rotate((360-angle2)*(Math.PI / 180));\
  5377.   ctx.fillText(text,0,0);\
  5378.   ctx.restore();\
  5379.  }else{ctx.fillText(text,x,y);};\
  5380. ctx.restore();\
  5381. return;\
  5382. };",canvas_root_id,canvas_root_id,canvas_root_id);
  5383.    
  5384.     break;
  5385.     case DRAW_CURVE:
  5386. fprintf(js_include_file,"\n<!-- draw curve -->\n\
  5387. draw_curve = function(canvas_type,type,x_points,y_points,line_width,stroke_color,stroke_opacity,use_dashed,dashtype0,use_rotate,angle,use_translate,vector){\
  5388. var obj;\
  5389. if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
  5390.  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
  5391. }\
  5392. else\
  5393. {\
  5394.  obj = create_canvas%d(canvas_type,xsize,ysize);\
  5395. };\
  5396. var ctx = obj.getContext(\"2d\");\
  5397. ctx.save();\
  5398. if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
  5399. if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
  5400. ctx.beginPath();ctx.lineWidth = line_width;\
  5401. if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
  5402. ctx.strokeStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  5403. ctx.moveTo(x2px(x_points[0]),y2px(y_points[0]));\
  5404. for(var p = 1 ; p < x_points.length ; p++){\
  5405.  if( y2px(y_points[p]) > -5 && y2px(y_points[p]) < ysize+5 ){\
  5406.  ctx.lineTo(x2px(x_points[p]),y2px(y_points[p]));\
  5407.  }\
  5408.  else\
  5409.  {\
  5410.   ctx.stroke();\
  5411.   ctx.beginPath();\
  5412.   p++;\
  5413.   ctx.moveTo(x2px(x_points[p]),y2px(y_points[p]));\
  5414.  };\
  5415. };\
  5416. ctx.stroke();\
  5417. ctx.restore();\
  5418. };",canvas_root_id,canvas_root_id,canvas_root_id);
  5419.     break;
  5420.    
  5421.     case DRAW_INPUTS:
  5422. fprintf(js_include_file,"\n<!-- draw input fields -->\n\
  5423. draw_inputs = function(root_id,input_cnt,x,y,size,readonly,style,value){\
  5424. var canvas_div = document.getElementById(\"canvas_div\"+root_id);\
  5425. var input = document.createElement(\"input\");\
  5426. input.setAttribute(\"id\",\"canvas_input\"+input_cnt);\
  5427. input.setAttribute(\"style\",\"position:absolute;left:\"+x+\"px;top:\"+y+\"px;\"+style);\
  5428. input.setAttribute(\"size\",size);\
  5429. input.setAttribute(\"value\",value);\
  5430. if( readonly == 0 ){ input.setAttribute(\"readonly\",\"readonly\");};\
  5431. canvas_div.appendChild(input);};");
  5432.     break;
  5433.    
  5434.     case DRAW_TEXTAREAS:
  5435. fprintf(js_include_file,"\n<!-- draw text area inputfields -->\n\
  5436. draw_textareas = function(root_id,input_cnt,x,y,cols,rows,readonly,style,value){\
  5437. var canvas_div = document.getElementById(\"canvas_div\"+root_id);\
  5438. var textarea = document.createElement(\"textarea\");\
  5439. textarea.setAttribute(\"id\",\"canvas_input\"+input_cnt);\
  5440. textarea.setAttribute(\"style\",\"position:absolute;left:\"+x+\"px;top:\"+y+\"px;\"+style);\
  5441. textarea.setAttribute(\"cols\",cols);\
  5442. textarea.setAttribute(\"rows\",rows);\
  5443. textarea.innerHTML = value;\
  5444. canvas_div.appendChild(textarea);};");
  5445.     break;
  5446.    
  5447. case DRAW_PIXELS:
  5448. fprintf(js_include_file,"\n<!-- draw pixel -->\n\
  5449. draw_setpixel = function(x,y,color,opacity,pixelsize){\
  5450. var canvas = create_canvas%d(10,xsize,ysize);\
  5451. var d = 0.5*pixelsize;\
  5452. var ctx = canvas.getContext(\"2d\");\
  5453. ctx.fillStyle = \"rgba(\"+color+\",\"+opacity+\")\";\
  5454. ctx.clearRect(0,0,xsize,ysize);\
  5455. for(var p=0; p<x.length;p++){\
  5456.  ctx.fillRect( x2px(x[p]) - d, y2px(y[p]) - d , pixelsize, pixelsize );\
  5457. };\
  5458. ctx.fill();ctx.stroke();\
  5459. };",canvas_root_id);
  5460. break;
  5461.  
  5462. case DRAW_CLOCK:
  5463. fprintf(js_include_file,"\n<!-- begin command clock -->\n\
  5464. var clock_canvas = create_canvas%d(%d,xsize,ysize);\
  5465. var clock_ctx = clock_canvas.getContext(\"2d\");\
  5466. var clock = function(xc,yc,radius,H,M,S,type,interaction,h_color,m_color,s_color,bg_color,fg_color){\
  5467. clock_ctx.save();\
  5468. this.type = type || 0;\
  5469. this.interaction = interaction || 0;\
  5470. this.H = H || parseInt(110*(Math.random()));\
  5471. this.M = M || parseInt(590*(Math.random()));\
  5472. this.S = S || parseInt(590*(Math.random()));\
  5473. this.xc = xc || xsize/2;\
  5474. this.yc = yc || ysize/2;\
  5475. this.radius = radius || xsize/4;\
  5476. var font_size = parseInt(0.2*this.radius);\
  5477. this.H_color = h_color || \"blue\";\
  5478. this.M_color = m_color || \"blue\";\
  5479. this.S_color = s_color || \"blue\";\
  5480. this.fg_color = fg_color || \"red\";\
  5481. this.bg_color = bg_color || \"white\";\
  5482. clock_ctx.translate(this.xc,this.yc);\
  5483. clock_ctx.beginPath();\
  5484. clock_ctx.arc(0,0,this.radius,0,2*Math.PI,false);\
  5485. clock_ctx.fillStyle = this.bg_color;\
  5486. clock_ctx.fill();\
  5487. clock_ctx.closePath();\
  5488. clock_ctx.beginPath();\
  5489. clock_ctx.font = font_size+\"px Arial\";\
  5490. clock_ctx.fillStyle = this.fg_color;\
  5491. clock_ctx.textAlign = \"center\";\
  5492. clock_ctx.textBaseline = 'middle';\
  5493. var angle;var x1,y1,x2,y2;\
  5494. var angle_cos;var angle_sin;\
  5495. switch(type){\
  5496. case 0:clock_ctx.beginPath();\
  5497. for(var p = 1; p <= 12 ; p++){\
  5498.  angle_cos = this.radius*(Math.cos(p * (Math.PI * 2) / 12));\
  5499.  angle_sin = this.radius*(Math.sin(p * (Math.PI * 2) / 12));\
  5500.  x1 = 0.8*angle_cos;y1 = 0.8*angle_sin;x2 = angle_cos;y2 = angle_sin;\
  5501.  clock_ctx.moveTo(x1,y1);\
  5502.  clock_ctx.lineTo(x2,y2);\
  5503. };\
  5504. for(var p = 1; p <= 60 ; p++){\
  5505.  angle_cos = this.radius*(Math.cos(p * (Math.PI * 2) / 60));\
  5506.  angle_sin = this.radius*(Math.sin(p * (Math.PI * 2) / 60));\
  5507.  x1 = 0.9*angle_cos;y1 = 0.9*angle_sin;x2 = angle_cos;y2 = angle_sin;\
  5508.  clock_ctx.moveTo(x1,y1);\
  5509.  clock_ctx.lineTo(x2,y2);\
  5510. };\
  5511. clock_ctx.closePath();\
  5512. clock_ctx.stroke();\
  5513. break;\
  5514. case 1:\
  5515. 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;\
  5516. case 2:for(var p= 1; p <= 12 ; p++){ angle = (p - 3) * (Math.PI * 2) / 12;x1 = 1.1*this.radius*Math.cos(angle);y1 = 1.1*this.radius*Math.sin(angle);clock_ctx.fillText(p, x1, y1);};\
  5517. clock_ctx.beginPath();\
  5518. for(var p = 1; p <= 12 ; p++){\
  5519.  angle_cos = this.radius*(Math.cos(p * (Math.PI * 2) / 12));\
  5520.  angle_sin = this.radius*(Math.sin(p * (Math.PI * 2) / 12));\
  5521.  x1 = 0.9*angle_cos;y1 = 0.9*angle_sin;x2 = angle_cos;y2 = angle_sin;\
  5522.  clock_ctx.moveTo(x1,y1);\
  5523.  clock_ctx.lineTo(x2,y2);\
  5524. };\
  5525. for(var p = 1; p <= 60 ; p++){\
  5526.  angle_cos = this.radius*(Math.cos(p * (Math.PI * 2) / 60));\
  5527.  angle_sin = this.radius*(Math.sin(p * (Math.PI * 2) / 60));\
  5528.  x1 = 0.95*angle_cos;y1 = 0.95*angle_sin;x2 = angle_cos;y2 = angle_sin;\
  5529.  clock_ctx.moveTo(x1,y1);\
  5530.  clock_ctx.lineTo(x2,y2);\
  5531. };\
  5532. clock_ctx.closePath();\
  5533. clock_ctx.stroke();\
  5534. break;\
  5535. };\
  5536. angle = (this.H - 3 + this.M/60 ) * 2 * Math.PI / 12;\
  5537. clock_ctx.rotate(angle);\
  5538. clock_ctx.beginPath();\
  5539. clock_ctx.moveTo(-3, -2);\
  5540. clock_ctx.lineTo(-3, 2);\
  5541. clock_ctx.lineTo(this.radius * 0.7, 1);\
  5542. clock_ctx.lineTo(this.radius  * 0.7, -1);\
  5543. clock_ctx.fillStyle = this.H_color;\
  5544. clock_ctx.fill();\
  5545. clock_ctx.rotate(-angle);\
  5546. angle = (this.M - 15 + this.S/60) * 2 * Math.PI / 60;\
  5547. clock_ctx.rotate(angle);\
  5548. clock_ctx.beginPath();\
  5549. clock_ctx.moveTo(-3, -2);\
  5550. clock_ctx.lineTo(-3, 2);\
  5551. clock_ctx.lineTo(this.radius  * 0.8, 1);\
  5552. clock_ctx.lineTo(this.radius  * 0.8, -1);\
  5553. clock_ctx.fillStyle = this.M_color;\
  5554. clock_ctx.fill();\
  5555. clock_ctx.rotate(-angle);\
  5556. angle = (this.S - 15) * 2 * Math.PI / 60;\
  5557. clock_ctx.rotate(angle);\
  5558. clock_ctx.beginPath();\
  5559. clock_ctx.moveTo(0,0);\
  5560. clock_ctx.lineTo(this.radius  * 0.95, 0);\
  5561. clock_ctx.lineTo(this.radius  * 0.9, -1);\
  5562. clock_ctx.strokeStyle = this.S_color;\
  5563. clock_ctx.stroke();\
  5564. clock_ctx.restore();\
  5565. };",canvas_root_id,CLOCK_CANVAS);
  5566. break;
  5567.  
  5568. case DRAW_LATTICE:
  5569. fprintf(js_include_file,"\n<!-- draw lattice -->\n\
  5570. 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_translate,vector){\
  5571. var obj;\
  5572. if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
  5573.  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
  5574. }\
  5575. else\
  5576. {\
  5577.  obj = create_canvas%d(canvas_type,xsize,ysize);\
  5578. };\
  5579. var ctx = obj.getContext(\"2d\");\
  5580. ctx.save();\
  5581. if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
  5582. if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
  5583. ctx.fillStyle =\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  5584. ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  5585. var radius = line_width;\
  5586. var x = 0;\
  5587. var y = 0;\
  5588. var x_step_px = xsize/(xmax-xmin);\
  5589. var y_step_px = ysize/(ymax-ymin);\
  5590. var xv1 = dx1*x_step_px;\
  5591. var yv1 = dy1*y_step_px;\
  5592. var xv2 = dx2*x_step_px;\
  5593. var yv2 = dy2*y_step_px;\
  5594. for(var p = 0; p < n1 ;p++){\
  5595.  x = p*xv1 + x0;\
  5596.  y = p*yv1 + y0;\
  5597.  for(var c = 0; c < n2 ; c++){\
  5598.   ctx.beginPath();\
  5599.   ctx.arc(x+c*xv2,y+c*yv2,radius,0,2*Math.PI,false);\
  5600.   ctx.fill();\
  5601.   ctx.stroke();\
  5602.   ctx.closePath();\
  5603.  };\
  5604. };\
  5605. ctx.restore();\
  5606. return;\
  5607. };",canvas_root_id,canvas_root_id,canvas_root_id);
  5608.     break;
  5609. case DRAW_XYLOGSCALE:
  5610. fprintf(js_include_file,"\n<!-- draw xylogscale -->\n\
  5611. 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){\n\
  5612. var obj;\n\
  5613. if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\n\
  5614.  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\n\
  5615. }\n\
  5616. else\n\
  5617. {\n\
  5618.  obj = create_canvas%d(canvas_type,xsize,ysize);\n\
  5619. };\n\
  5620. var ctx = obj.getContext(\"2d\");\n\
  5621. ctx.clearRect(0,0,xsize,ysize);\
  5622. ctx.save();\n\
  5623. var xmarge;var ymarge;var x_e;var y_e;var num;var corr;var xtxt;var ytxt;\
  5624. var x_min = Math.log(xmin)/Math.log(xlogbase);\n\
  5625. var x_max = Math.log(xmax)/Math.log(xlogbase);\n\
  5626. var y_min = Math.log(ymin)/Math.log(ylogbase);\n\
  5627. var y_max = Math.log(ymax)/Math.log(ylogbase);\n\
  5628. if(use_axis_numbering == 1){\
  5629.  ctx.font = font_family;\n\
  5630.  xmarge = ctx.measureText(ylogbase+'^'+y_max.toFixed(0)+' ').width;\n\
  5631.  ymarge = parseInt(1.5*font_size);\n\
  5632.  ctx.save();\n\
  5633.  ctx.fillStyle=\"rgba(255,215,0,0.2)\";\n\
  5634.  ctx.rect(0,0,xmarge,ysize);\n\
  5635.  ctx.rect(0,ysize-ymarge,xsize,ysize);\n\
  5636.  ctx.fill();\n\
  5637.  ctx.restore();\n\
  5638. }else{xmarge = 0;ymarge = 0;};\n\
  5639. if( typeof xaxislabel !== 'undefined' ){\
  5640.  ctx.save();\n\
  5641.  ctx.font = \"italic \"+font_size+\"px Ariel\";\n\
  5642.  ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\n\
  5643.  corr =  ctx.measureText(xaxislabel).width;\n\
  5644.  ctx.fillText(xaxislabel,xsize - 1.5*corr,ysize - 2*font_size);\n\
  5645.  ctx.restore();\n\
  5646. };\n\
  5647. if( typeof yaxislabel !== 'undefined' ){\
  5648.  ctx.save();\n\
  5649.  ctx.font = \"italic \"+font_size+\"px Ariel\";\n\
  5650.  ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\n\
  5651.  corr = ctx.measureText(yaxislabel).width;\n\
  5652.  ctx.translate(xmarge+font_size,corr+font_size);\n\
  5653.  ctx.rotate(-0.5*Math.PI);\n\
  5654.  ctx.fillText(yaxislabel,0,0);\n\
  5655.  ctx.restore();\n\
  5656. };\n\
  5657. ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\n\
  5658. ctx.lineWidth = line_width;\n\n\
  5659. for(var p = x_min; p <= x_max ; p++){\n\
  5660.  num = Math.pow(xlogbase,p);\n\n\
  5661.  for(var i = 1 ; i < xlogbase ; i++){\n\
  5662.   x_e = x2px(i*num);\n\n\
  5663.   if( i == 1 ){\
  5664.    ctx.lineWidth = line_width;\n\n\
  5665.    ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\n\
  5666.    if( use_axis_numbering == 1 && p > x_min){\
  5667.      xtxt = xlogbase+'^'+p.toFixed(0);\n\
  5668.      corr = 0.5*(ctx.measureText(xtxt).width);\n\
  5669.      ctx.fillText(xtxt,x_e - corr,ysize - 4);\n\
  5670.    };\n\
  5671.   }else{\
  5672.    ctx.lineWidth = 0.2*line_width;\n\n\
  5673.    ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\n\
  5674.   };\n\
  5675.   if( x_e >= xmarge ){\
  5676.    ctx.beginPath();\n\
  5677.    ctx.moveTo(x_e,0);\n\
  5678.    ctx.lineTo(x_e,ysize - ymarge);\n\n\
  5679.    ctx.stroke();\n\
  5680.    ctx.closePath();\n\
  5681.   };\
  5682.  };\n\
  5683. };\n\
  5684. for(var p = y_min; p <= y_max ; p++){\n\
  5685.  num = Math.pow(ylogbase,p);\n\
  5686.  for(var i = 1 ; i < ylogbase ; i++){\n\
  5687.   y_e = y2px(i*num);\n\
  5688.   if( i == 1 ){\n\
  5689.    ctx.lineWidth = line_width;\n\
  5690.    ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
  5691.    if( use_axis_numbering == 1 && p > y_min){\n\
  5692.     ctx.fillText(ylogbase+'^'+p.toFixed(0),0,y_e);\n\
  5693.    };\n\
  5694.   }else{\n\
  5695.    ctx.lineWidth = 0.2*line_width;\n\
  5696.    ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\n\
  5697.   };\n\
  5698.   ctx.beginPath();\n\
  5699.   ctx.moveTo(xmarge,y_e);\n\
  5700.   ctx.lineTo(xsize,y_e);\n\
  5701.   ctx.stroke();\n\
  5702.   ctx.closePath();\n\
  5703.  };\n\
  5704. };\n\
  5705. ctx.restore();\
  5706. };",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
  5707.     break;
  5708.  
  5709. case DRAW_XLOGSCALE:
  5710. fprintf(js_include_file,"\n<!-- draw xlogscale -->\n\
  5711. 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){\n\
  5712. var obj;\n\
  5713. if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\n\
  5714.  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\n\
  5715. }\n\
  5716. else\n\
  5717. {\n\
  5718.  obj = create_canvas%d(canvas_type,xsize,ysize);\n\
  5719. };\n\
  5720. var ctx = obj.getContext(\"2d\");\n\
  5721. ctx.clearRect(0,0,xsize,ysize);\
  5722. ctx.save();\n\
  5723. ctx.lineWidth = line_width;\n\
  5724. var prec = Math.log(precision)/Math.log(10);\
  5725. var x_min = Math.log(xmin)/Math.log(xlogbase);\
  5726. var x_max = Math.log(xmax)/Math.log(xlogbase);\
  5727. var y_min = 0;var y_max = ysize;var x_e;var corr;\
  5728. var xtxt;var ytxt;var num;var xmarge;var ymarge;\
  5729. if(use_axis_numbering == 1){\
  5730.  ctx.font = font_family;\n\
  5731.  xmarge = ctx.measureText(ymax.toFixed(prec)+' ').width;\n\
  5732.  ymarge = parseInt(1.5*font_size);\n\
  5733.  ctx.save();\n\
  5734.  ctx.fillStyle=\"rgba(255,215,0,0.2)\";\n\
  5735.  ctx.rect(0,0,xmarge,ysize);\n\
  5736.  ctx.rect(0,ysize-ymarge,xsize,ysize);\n\
  5737.  ctx.fill();\n\
  5738.  ctx.restore();\n\
  5739. }else{xmarge = 0;ymarge = 0;};\n\
  5740. if( typeof xaxislabel !== 'undefined' ){\
  5741.  ctx.save();\n\
  5742.  ctx.font = \"italic \"+font_size+\"px Ariel\";\n\
  5743.  ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\n\
  5744.  corr =  ctx.measureText(xaxislabel).width;\n\
  5745.  ctx.fillText(xaxislabel,xsize - 1.5*corr,ysize - 2*font_size);\n\
  5746.  ctx.restore();\n\
  5747. };\n\
  5748. if( typeof yaxislabel !== 'undefined' ){\
  5749.  ctx.save();\n\
  5750.  ctx.font = \"italic \"+font_size+\"px Ariel\";\n\
  5751.  ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\n\
  5752.  corr = ctx.measureText(yaxislabel).width;\n\
  5753.  ctx.translate(xmarge+font_size,corr+font_size);\n\
  5754.  ctx.rotate(-0.5*Math.PI);\n\
  5755.  ctx.fillText(yaxislabel,0,0);\n\
  5756.  ctx.restore();\n\
  5757. };\n\
  5758. ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\n\
  5759. ctx.lineWidth = line_width;\n\n\
  5760. for(var p = x_min; p <= x_max ; p++){\n\
  5761.  num = Math.pow(xlogbase,p);\n\
  5762.  for(var i = 1 ; i < xlogbase ; i++){\n\
  5763.   x_e = x2px(i*num);\n\
  5764.   if( i == 1 ){\
  5765.     ctx.lineWidth = line_width;\n\
  5766.     ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
  5767.    if( use_axis_numbering == 1 && p > x_min ){\
  5768.      xtxt = xlogbase+'^'+p.toFixed(0);\
  5769.      corr = 0.5*(ctx.measureText(xtxt).width);\
  5770.      ctx.fillText(xtxt,x_e - corr,ysize - 4);\
  5771.    };\
  5772.   }else{\
  5773.    ctx.lineWidth = 0.2*line_width;\n\
  5774.    ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
  5775.   };\
  5776.   if( x_e >= xmarge ){\
  5777.    ctx.beginPath();\n\
  5778.    ctx.moveTo(x_e,0);\n\
  5779.    ctx.lineTo(x_e,ysize - ymarge);\n\n\
  5780.    ctx.stroke();\n\
  5781.    ctx.closePath();\n\
  5782.   };\
  5783.  };\
  5784. };\n\
  5785. var stepy = Math.abs(y2px(ymajor) - y2px(0));\
  5786. var minor_step = stepy / yminor;\
  5787. for(var y = 0 ; y < ysize - stepy ; y = y + stepy){\
  5788.  ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
  5789.  ctx.lineWidth = line_width;\n\
  5790.  ctx.beginPath();\n\
  5791.  ctx.moveTo(xmarge,y);\n\
  5792.  ctx.lineTo(xsize,y);\n\
  5793.  ctx.stroke();\n\
  5794.  ctx.closePath();\n\
  5795.  if( use_axis_numbering == 1){\
  5796.   ytxt = (px2y(y)).toFixed(prec);\
  5797.   ctx.fillText( ytxt,0 ,y + 0.5*font_size );\
  5798.  };\
  5799.  for(var dy = 1 ; dy < yminor ; dy++){\
  5800.   ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
  5801.   ctx.lineWidth = 0.2*line_width;\n\
  5802.   ctx.beginPath();\n\
  5803.   ctx.moveTo(xmarge,y+dy*minor_step);\
  5804.   ctx.lineTo(xsize,y+dy*minor_step);\n\
  5805.   ctx.stroke();\n\
  5806.   ctx.closePath();\n\
  5807.  };\
  5808. };\
  5809. ctx.restore();\n\
  5810. };\n",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
  5811.     break;
  5812. case DRAW_YLOGSCALE:
  5813. fprintf(js_include_file,"\n<!-- draw ylogscale -->\n\
  5814. 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){\n\
  5815. var obj;\n\
  5816. if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\n\
  5817.  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\n\
  5818. }\n\
  5819. else\n\
  5820. {\n\
  5821.  obj = create_canvas%d(canvas_type,xsize,ysize);\n\
  5822. };\n\
  5823. var ctx = obj.getContext(\"2d\");\n\
  5824. ctx.clearRect(0,0,xsize,ysize);\
  5825. ctx.save();\n\
  5826. ctx.lineWidth = line_width;\n\
  5827. var y_min = Math.log(ymin)/Math.log(ylogbase);\
  5828. var y_max = Math.log(ymax)/Math.log(ylogbase);\
  5829. var x_min = 0;var x_max = xsize;var y_s;var y_e;var num;\
  5830. if(use_axis_numbering == 1){\
  5831.  ctx.font = font_family;\n\
  5832.  xmarge = ctx.measureText(ylogbase+\"^\"+y_max.toFixed(0)+' ').width;\n\
  5833.  ymarge = 2*font_size;\n\
  5834.  ctx.save();\n\
  5835.  ctx.fillStyle=\"rgba(255,215,0,0.2)\";\n\
  5836.  ctx.rect(0,0,xmarge,ysize);\n\
  5837.  ctx.rect(0,ysize-ymarge,xsize,ysize);\n\
  5838.  ctx.fill();\n\
  5839.  ctx.restore();\n\
  5840. }else{xmarge = 0;ymarge = 0;};\n\
  5841. if( typeof xaxislabel !== 'undefined' ){\
  5842.  ctx.save();\n\
  5843.  ctx.font = \"italic \"+font_size+\"px Ariel\";\n\
  5844.  ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\n\
  5845.  corr =  ctx.measureText(xaxislabel).width;\n\
  5846.  ctx.fillText(xaxislabel,xsize - 1.5*corr,ysize - 2*font_size);\n\
  5847.  ctx.restore();\n\
  5848. };\n\
  5849. if( typeof yaxislabel !== 'undefined' ){\
  5850.  ctx.save();\n\
  5851.  ctx.font = \"italic \"+font_size+\"px Ariel\";\n\
  5852.  ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\n\
  5853.  corr = ctx.measureText(yaxislabel).width;\n\
  5854.  ctx.translate(xmarge+font_size,corr+font_size);\n\
  5855.  ctx.rotate(-0.5*Math.PI);\n\
  5856.  ctx.fillText(yaxislabel,0,0);\n\
  5857.  ctx.restore();\n\
  5858. };\n\
  5859. ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\n\
  5860. ctx.lineWidth = line_width;\n\n\
  5861. for(var p = y_min; p <= y_max ; p++){\n\
  5862.  num = Math.pow(ylogbase,p);\n\
  5863.  for(var i = 1 ; i < ylogbase ; i++){\n\
  5864.   y_e = y2px(i*num);\n\
  5865.   if( i == 1 ){\
  5866.    ctx.lineWidth = line_width;\n\
  5867.    ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
  5868.    if( use_axis_numbering == 1 && p > y_min){\
  5869.     ctx.fillText(ylogbase+'^'+p.toFixed(0),0,y_e);\
  5870.    };\
  5871.   }else{\
  5872.    ctx.lineWidth = 0.2*line_width;\n\
  5873.    ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
  5874.   };\
  5875.   ctx.beginPath();\n\
  5876.   ctx.moveTo(xmarge,y_e);\n\
  5877.   ctx.lineTo(xsize,y_e);\n\
  5878.   ctx.stroke();\n\
  5879.   ctx.closePath();\n\
  5880.  };\n\
  5881. };\n\
  5882. var stepx = Math.abs(x2px(xmajor) - x2px(0));\
  5883. var minor_step = stepx / xminor;\
  5884. var prec = Math.log(precision)/Math.log(10);\
  5885. var xtxt;var corr;var flip = 0;\
  5886. for(var x = stepx ; x < xsize ; x = x + stepx){\
  5887.  ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
  5888.  ctx.lineWidth = line_width;\n\
  5889.  ctx.beginPath();\n\
  5890.  ctx.moveTo(x,ysize-ymarge);\n\
  5891.  ctx.lineTo(x,0);\n\
  5892.  ctx.stroke();\n\
  5893.  ctx.closePath();\n\
  5894.  if( use_axis_numbering == 1){\
  5895.   xtxt = (px2x(x)).toFixed(prec);\
  5896.   corr = 0.5*(ctx.measureText(xtxt).width);\
  5897.   if(flip == 0 ){flip = 1;ctx.fillText( xtxt,x - corr ,ysize - 0.2*font_size );}else{\
  5898.   flip = 0;ctx.fillText( xtxt,x - corr ,ysize - 1.2*font_size );};\
  5899.  };\
  5900.  for(var dx = 1 ; dx < xminor ; dx++){\
  5901.   ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
  5902.   ctx.lineWidth = 0.2*line_width;\n\
  5903.   ctx.beginPath();\n\
  5904.   ctx.moveTo(x+dx*minor_step,ysize - ymarge);\
  5905.   ctx.lineTo(x+dx*minor_step,0);\n\
  5906.   ctx.stroke();\n\
  5907.   ctx.closePath();\n\
  5908.  };\
  5909. };\
  5910. ctx.restore();\n\
  5911. };\n",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
  5912.  
  5913.     break;
  5914.  
  5915.  
  5916.     default:break;
  5917.    }
  5918.   }
  5919.  }
  5920.   return;
  5921. }
  5922.  
  5923. void check_string_length(int L){
  5924.  if(L<1 || L > MAX_BUFFER-1){
  5925.   canvas_error("problem with your arguments to command...");
  5926.  }
  5927.  return;
  5928. }
  5929.  
  5930.  
  5931. int get_token(FILE *infile){
  5932.         int     c,i=0;
  5933.         char    temp[MAX_INT], *input_type;
  5934.         char    *line="line",
  5935.         *audio="audio",
  5936.         *blink="blink",
  5937.         *arrowhead="arrowhead",
  5938.         *crosshairsize="crosshairsize",
  5939.         *crosshair="crosshair",
  5940.         *crosshairs="crosshairs",
  5941.         *audioobject="audioobject",
  5942.         *style="style",
  5943.         *mouse="mouse",
  5944.         *userdraw="userdraw",
  5945.         *highlight="highlight",
  5946.         *http="http",
  5947.         *rays="rays",
  5948.         *dashtype="dashtype",
  5949.         *dashed="dashed",
  5950.         *filled="filled",
  5951.         *lattice="lattice",
  5952.         *parallel="parallel",
  5953.         *segment="segment",
  5954.         *dsegment="dsegment",
  5955.         *seg="seg",
  5956.         *bgimage="bgimage",
  5957.         *bgcolor="bgcolor",
  5958.         *strokecolor="strokecolor",
  5959.         *backgroundimage="backgroundimage",
  5960.         *text="text",
  5961.         *textup="textup",
  5962.         *mouseprecision="mouseprecision",
  5963.         *precision="precision",
  5964.         *plotsteps="plotsteps",
  5965.         *plotstep="plotstep",
  5966.         *tsteps="tsteps",
  5967.         *curve="curve",
  5968.         *dcurve="dcurve",
  5969.         *plot="plot",
  5970.         *dplot="dplot",
  5971.         *levelcurve="levelcurve",
  5972.         *fontsize="fontsize",
  5973.         *fontcolor="fontcolor",
  5974.         *axis="axis",
  5975.         *axisnumbering="axisnumbering",
  5976.         *axisnumbers="axisnumbers",
  5977.         *arrow="arrow",
  5978.         *darrow="darrow",
  5979.         *arrow2="arrow2",
  5980.         *darrow2="darrow2",
  5981.         *zoom="zoom",
  5982.         *grid="grid",
  5983.         *hline="hline",
  5984.         *dhline="dhline",
  5985.         *drag="drag",
  5986.         *horizontalline="horizontalline",
  5987.         *vline="vline",
  5988.         *dvline="dvline",
  5989.         *verticalline="verticalline",
  5990.         *triangle="triangle",
  5991.         *ftriangle="ftriangle",
  5992.         *mathml="mathml",
  5993.         *html="html",
  5994.         *input="input",
  5995.         *button="button",
  5996.         *inputstyle="inputstyle",
  5997.         *textarea="textarea",
  5998.         *trange="trange",
  5999.         *ranget="ranget",
  6000.         *xrange="xrange",
  6001.         *yrange="yrange",
  6002.         *rangex="rangex",
  6003.         *rangey="rangey",
  6004.         *polyline="polyline",
  6005.         *lines="lines",
  6006.         *poly="poly",
  6007.         *polygon="polygon",
  6008.         *fpolygon="fpolygon",
  6009.         *fpoly="fpoly",
  6010.         *filledpoly="filledpoly",
  6011.         *filledpolygon="filledpolygon",
  6012.         *rect="rect",
  6013.         *frect="frect",
  6014.         *rectangle="rectangle",
  6015.         *frectangle="frectangle",
  6016.         *square="square",
  6017.         *fsquare="fsquare",
  6018.         *dline="dline",
  6019.         *arc="arc",
  6020.         *filledarc="filledarc",
  6021.         *size="size",
  6022.         *string="string",
  6023.         *stringup="stringup",
  6024.         *copy="copy",
  6025.         *copyresized="copyresized",
  6026.         *opacity="opacity",
  6027.         *transparent="transparent",
  6028.         *fill="fill",
  6029.         *slider="slider",
  6030.         *point="point",
  6031.         *points="points",
  6032.         *linewidth="linewidth",
  6033.         *circle="circle",
  6034.         *fcircle="fcircle",
  6035.         *disk="disk",
  6036.         *comment="#",
  6037.         *end="end",
  6038.         *ellipse="ellipse",
  6039.         *fellipse="fellipse",
  6040.         *rotate="rotate",
  6041.         *affine="affine",
  6042.         *killaffine="killaffine",
  6043.         *fontfamily="fontfamily",
  6044.         *fillcolor="fillcolor",
  6045.         *clicktile="clicktile",
  6046.         *clicktile_colors="clicktile_colors",
  6047.         *translation="translation",
  6048.         *translate="translate",
  6049.         *killtranslation="killtranslation",
  6050.         *killtranslate="killtranslate",
  6051.         *onclick="onclick",
  6052.         *roundrect="roundrect",
  6053.         *froundrect="froundrect",
  6054.         *roundrectangle="roundrectangle",
  6055.         *patternfill="patternfill",
  6056.         *hatchfill="hatchfill",
  6057.         *diafill="diafill",
  6058.         *diamondfill="diamondfill",
  6059.         *dotfill="dotfill",
  6060.         *gridfill="gridfill",
  6061.         *imagefill="imagefill",
  6062.         *xlogbase="xlogbase",
  6063.         *ylogbase="ylogbase",
  6064.         *xlogscale="xlogscale",
  6065.         *ylogscale="ylogscale",
  6066.         *xylogscale="xylogscale",
  6067.         *intooltip="intooltip",
  6068.         *replyformat="replyformat",
  6069.         *floodfill="floodfill",
  6070.         *filltoborder="filltoborder",
  6071.         *clickfill="clickfill",
  6072.         *setpixel="setpixel",
  6073.         *pixels="pixels",
  6074.         *pixelsize="pixelsize",
  6075.         *clickfillmarge="clickfillmarge",
  6076.         *xaxis="xaxis",
  6077.         *yaxis="yaxis",
  6078.         *xaxistext="xaxistext",
  6079.         *yaxistext="yaxistext",
  6080.         *piechart="piechart",
  6081.         *legend="legend",
  6082.         *legendcolors="legendcolors",
  6083.         *xlabel="xlabel",
  6084.         *ylabel="ylabel",
  6085.         *barchart="barchart",
  6086.         *linegraph="linegraph",
  6087.         *clock="clock",
  6088.         *animate="animate",
  6089.         *video="video",
  6090.         *status="status",
  6091.         *snaptogrid="snaptogrid",
  6092.         *xsnaptogrid="xsnaptogrid",
  6093.         *ysnaptogrid="ysnaptogrid",
  6094.         *userinput_xy="userinput_xy",
  6095.         *usertextarea_xy="usertextarea_xy",
  6096.         *sgraph="sgraph";
  6097.  
  6098.         while(((c = getc(infile)) != EOF)&&(c!='\n')&&(c!=',')&&(c!='=')&&(c!='\r')){
  6099.             if( i == 0 && (c == ' ' || c == '\t') ){
  6100.         continue; /* white spaces or tabs allowed before first command identifier */
  6101.             }
  6102.             else
  6103.             {
  6104.         if( c == ' ' || c == '\t' ){
  6105.             break;
  6106.         }
  6107.         else
  6108.         {
  6109.             temp[i] = c;
  6110.             if(i > MAX_INT - 2){canvas_error("command string too long !");}
  6111.             i++;
  6112.         }
  6113.             }
  6114.             if(temp[0] == '#') break;
  6115.         }
  6116.         if (c == EOF) finished = 1;
  6117.  
  6118.         if (c == '\n' || c == '\r') {
  6119.         line_number++;
  6120.         if (i == 0) { return EMPTY; }
  6121.         } else if (c == EOF) {
  6122.         return 0;
  6123.         }
  6124.  
  6125.         temp[i]='\0';
  6126.         input_type=(char*)my_newmem(strlen(temp));
  6127.         snprintf(input_type,sizeof(temp),"%s",temp);
  6128.  
  6129.         if( strcmp(input_type, size) == 0 ){
  6130.         free(input_type);
  6131.         return SIZE;
  6132.         }
  6133.         if( strcmp(input_type, xrange) == 0 ){
  6134.         free(input_type);
  6135.         return XRANGE;
  6136.         }
  6137.         if( strcmp(input_type, rangex) == 0 ){
  6138.         free(input_type);
  6139.         return XRANGE;
  6140.         }
  6141.         if( strcmp(input_type, trange) == 0 ){
  6142.         free(input_type);
  6143.         return TRANGE;
  6144.         }
  6145.         if( strcmp(input_type, ranget) == 0 ){
  6146.         free(input_type);
  6147.         return TRANGE;
  6148.         }
  6149.         if( strcmp(input_type, yrange) == 0 ){
  6150.         free(input_type);
  6151.         return YRANGE;
  6152.         }
  6153.         if( strcmp(input_type, rangey) == 0 ){
  6154.         free(input_type);
  6155.         return YRANGE;
  6156.         }
  6157.         if( strcmp(input_type, linewidth) == 0 ){
  6158.         free(input_type);
  6159.         return LINEWIDTH;
  6160.         }
  6161.         if( strcmp(input_type, dashed) == 0 ){
  6162.         free(input_type);
  6163.         return DASHED;
  6164.         }
  6165.         if( strcmp(input_type, dashtype) == 0 ){
  6166.         free(input_type);
  6167.         return DASHTYPE;
  6168.         }
  6169.         if( strcmp(input_type, axisnumbering) == 0 ){
  6170.         free(input_type);
  6171.         return AXIS_NUMBERING;
  6172.         }
  6173.         if( strcmp(input_type, axisnumbers) == 0 ){
  6174.         free(input_type);
  6175.         return AXIS_NUMBERING;
  6176.         }
  6177.         if( strcmp(input_type, axis) == 0 ){
  6178.         free(input_type);
  6179.         return AXIS;
  6180.         }
  6181.         if( strcmp(input_type, grid) == 0 ){
  6182.         free(input_type);
  6183.         return GRID;
  6184.         }
  6185.         if( strcmp(input_type, parallel) == 0 ){
  6186.         free(input_type);
  6187.         return PARALLEL;
  6188.         }
  6189.         if( strcmp(input_type, hline) == 0 ||  strcmp(input_type, horizontalline) == 0 ){
  6190.         free(input_type);
  6191.         return HLINE;
  6192.         }
  6193.         if( strcmp(input_type, vline) == 0 ||  strcmp(input_type, verticalline) == 0 ){
  6194.         free(input_type);
  6195.         return VLINE;
  6196.         }
  6197.         if( strcmp(input_type, line) == 0 ){
  6198.         free(input_type);
  6199.         return LINE;
  6200.         }
  6201.         if( strcmp(input_type, seg) == 0 ||  strcmp(input_type, segment) == 0 ){
  6202.         free(input_type);
  6203.         return SEGMENT;
  6204.         }
  6205.         if( strcmp(input_type, dsegment) == 0 ){
  6206.         free(input_type);
  6207.         use_dashed = TRUE;
  6208.         return SEGMENT;
  6209.         }
  6210.         if( strcmp(input_type, crosshairsize) == 0 ){
  6211.         free(input_type);
  6212.         return CROSSHAIRSIZE;
  6213.         }
  6214.         if( strcmp(input_type, arrowhead) == 0 ){
  6215.         free(input_type);
  6216.         return ARROWHEAD;
  6217.         }
  6218.         if( strcmp(input_type, crosshairs) == 0 ){
  6219.         free(input_type);
  6220.         return CROSSHAIRS;
  6221.         }
  6222.         if( strcmp(input_type, crosshair) == 0 ){
  6223.         free(input_type);
  6224.         return CROSSHAIR;
  6225.         }
  6226.         if( strcmp(input_type, onclick) == 0 ){
  6227.         free(input_type);
  6228.         return ONCLICK;
  6229.         }
  6230.         if( strcmp(input_type, drag) == 0 ){
  6231.         free(input_type);
  6232.         return DRAG;
  6233.         }
  6234.         if( strcmp(input_type, userdraw) == 0 ){
  6235.         free(input_type);
  6236.         return USERDRAW;
  6237.         }
  6238.         if( strcmp(input_type, highlight) == 0 || strcmp(input_type, style) == 0 ){
  6239.         free(input_type);
  6240.         return STYLE;
  6241.         }
  6242.         if( strcmp(input_type, fillcolor) == 0 ){
  6243.         free(input_type);
  6244.         return FILLCOLOR;
  6245.         }
  6246.         if( strcmp(input_type, strokecolor) == 0 ){
  6247.         free(input_type);
  6248.         return STROKECOLOR;
  6249.         }
  6250.         if( strcmp(input_type, filled) == 0  ){
  6251.         free(input_type);
  6252.         return FILLED;
  6253.         }
  6254.         if( strcmp(input_type, http) == 0 ){
  6255.         free(input_type);
  6256.         return HTTP;
  6257.         }
  6258.         if( strcmp(input_type, rays) == 0 ){
  6259.         free(input_type);
  6260.         return RAYS;
  6261.         }
  6262.         if( strcmp(input_type, lattice) == 0 ){
  6263.         free(input_type);
  6264.         return LATTICE;
  6265.         }
  6266.         if( strcmp(input_type, bgimage) == 0 ){
  6267.         free(input_type);
  6268.         return BGIMAGE;
  6269.         }
  6270.         if( strcmp(input_type, bgcolor) == 0 ){
  6271.         free(input_type);
  6272.         return BGCOLOR;
  6273.         }
  6274.         if( strcmp(input_type, backgroundimage) == 0 ){
  6275.         free(input_type);
  6276.         return BGIMAGE;
  6277.         }
  6278.         if( strcmp(input_type, text) == 0 ){
  6279.         free(input_type);
  6280.         return FLY_TEXT;
  6281.         }
  6282.         if( strcmp(input_type, textup) == 0 ){
  6283.         free(input_type);
  6284.         return FLY_TEXTUP;
  6285.         }
  6286.         if( strcmp(input_type, mouse) == 0 ){
  6287.         free(input_type);
  6288.         return MOUSE;
  6289.         }
  6290.         if( strcmp(input_type, mouseprecision) == 0 ){
  6291.         free(input_type);
  6292.         return MOUSE_PRECISION;
  6293.         }
  6294.         if( strcmp(input_type, precision) == 0 ){
  6295.         free(input_type);
  6296.         return MOUSE_PRECISION;
  6297.         }
  6298.         if( strcmp(input_type, curve) == 0 ){
  6299.         free(input_type);
  6300.         return CURVE;
  6301.         }
  6302.         if( strcmp(input_type, dcurve) == 0 ){
  6303.         use_dashed = TRUE;
  6304.         free(input_type);
  6305.         return CURVE;
  6306.         }
  6307.         if( strcmp(input_type, plot) == 0 ){
  6308.         free(input_type);
  6309.         return CURVE;
  6310.         }
  6311.         if( strcmp(input_type, dplot) == 0 ){
  6312.         use_dashed = TRUE;
  6313.         free(input_type);
  6314.         return CURVE;
  6315.         }
  6316.         if( strcmp(input_type, levelcurve) == 0 ){
  6317.         free(input_type);
  6318.         return LEVELCURVE;
  6319.         }
  6320.         if( strcmp(input_type, plotsteps) == 0 ){
  6321.         free(input_type);
  6322.         return PLOTSTEPS;
  6323.         }
  6324.         if( strcmp(input_type, plotstep) == 0 ){
  6325.         free(input_type);
  6326.         return PLOTSTEPS;
  6327.         }
  6328.         if( strcmp(input_type, tsteps) == 0 ){
  6329.         free(input_type);
  6330.         return PLOTSTEPS;
  6331.         }
  6332.         if( strcmp(input_type, fontsize) == 0 ){
  6333.         free(input_type);
  6334.         return FONTSIZE;
  6335.         }
  6336.         if( strcmp(input_type, fontcolor) == 0 ){
  6337.         free(input_type);
  6338.         return FONTCOLOR;
  6339.         }
  6340.         if( strcmp(input_type, arrow) == 0 ){
  6341.         free(input_type);
  6342.         return ARROW;
  6343.         }
  6344.         if( strcmp(input_type, arrow2) == 0 ){
  6345.         free(input_type);
  6346.         return ARROW2;
  6347.         }
  6348.         if( strcmp(input_type, darrow) == 0 ){
  6349.         free(input_type);
  6350.         return ARROW;
  6351.         }
  6352.         if( strcmp(input_type, darrow2) == 0 ){
  6353.         free(input_type);
  6354.         use_dashed = TRUE;
  6355.         return ARROW2;
  6356.         }
  6357.         if( strcmp(input_type, zoom) == 0 ){
  6358.         free(input_type);
  6359.         return ZOOM;
  6360.         }
  6361.         if( strcmp(input_type, triangle) == 0 ){
  6362.         free(input_type);
  6363.         return TRIANGLE;
  6364.         }
  6365.         if( strcmp(input_type, ftriangle) == 0 ){
  6366.         free(input_type);
  6367.         use_filled = TRUE;
  6368.         return TRIANGLE;
  6369.         }
  6370.         if( strcmp(input_type, input) == 0 ){
  6371.         free(input_type);
  6372.         return INPUT;
  6373.         }
  6374.         if( strcmp(input_type, inputstyle) == 0 ){
  6375.         free(input_type);
  6376.         return INPUTSTYLE;
  6377.         }
  6378.         if( strcmp(input_type, textarea) == 0 ){
  6379.         free(input_type);
  6380.         return TEXTAREA;
  6381.         }
  6382.         if( strcmp(input_type, mathml) == 0 ){
  6383.         free(input_type);
  6384.         return MATHML;
  6385.         }
  6386.         if( strcmp(input_type, html) == 0 ){
  6387.         free(input_type);
  6388.         return MATHML;
  6389.         }
  6390.         if( strcmp(input_type, fontfamily) == 0 ){
  6391.         free(input_type);
  6392.         return FONTFAMILY;
  6393.         }
  6394.         if( strcmp(input_type, lines) == 0  ||  strcmp(input_type, polyline) == 0 ){
  6395.         free(input_type);
  6396.         return POLYLINE;
  6397.         }
  6398.         if( strcmp(input_type, rect) == 0  ||  strcmp(input_type, rectangle) == 0 ){
  6399.         free(input_type);
  6400.         return RECT;
  6401.         }
  6402.         if( strcmp(input_type, roundrect) == 0  ||  strcmp(input_type, roundrectangle) == 0 ){
  6403.         free(input_type);
  6404.         return ROUNDRECT;
  6405.         }
  6406.         if( strcmp(input_type, froundrect) == 0 ){
  6407.         free(input_type);
  6408.         use_filled = TRUE;
  6409.         return ROUNDRECT;
  6410.         }
  6411.         if( strcmp(input_type, square) == 0 ){
  6412.         free(input_type);
  6413.         return SQUARE;
  6414.         }
  6415.         if( strcmp(input_type, fsquare) == 0 ){
  6416.         free(input_type);
  6417.         use_filled = TRUE;
  6418.         return SQUARE;
  6419.         }
  6420.         if( strcmp(input_type, dline) == 0 ){
  6421.         use_dashed = TRUE;
  6422.         free(input_type);
  6423.         return LINE;
  6424.         }
  6425.         if( strcmp(input_type, dvline) == 0 ){
  6426.         use_dashed = TRUE;
  6427.         free(input_type);
  6428.         return VLINE;
  6429.         }
  6430.         if( strcmp(input_type, dhline) == 0 ){
  6431.         use_dashed = TRUE;
  6432.         free(input_type);
  6433.         return HLINE;
  6434.         }
  6435.         if( strcmp(input_type, frect) == 0 || strcmp(input_type, frectangle) == 0 ){
  6436.         use_filled = TRUE;
  6437.         free(input_type);
  6438.         return RECT;
  6439.         }
  6440.         if( strcmp(input_type, fcircle) == 0  ||  strcmp(input_type, disk) == 0 ){
  6441.         use_filled = TRUE;
  6442.         free(input_type);
  6443.         return CIRCLE;
  6444.         }
  6445.         if( strcmp(input_type, circle) == 0 ){
  6446.         free(input_type);
  6447.         return CIRCLE;
  6448.         }
  6449.         if( strcmp(input_type, point) == 0 ){
  6450.         free(input_type);
  6451.         return POINT;
  6452.         }
  6453.         if( strcmp(input_type, points) == 0 ){
  6454.         free(input_type);
  6455.         return POINTS;
  6456.         }
  6457.         if( strcmp(input_type, filledarc) == 0 ){
  6458.         use_filled = TRUE;
  6459.         free(input_type);
  6460.         return ARC;
  6461.         }
  6462.         if( strcmp(input_type, arc) == 0 ){
  6463.         free(input_type);
  6464.         return ARC;
  6465.         }
  6466.         if( strcmp(input_type, poly) == 0 ||  strcmp(input_type, polygon) == 0 ){
  6467.         free(input_type);
  6468.         return POLY;
  6469.         }
  6470.         if( strcmp(input_type, fpoly) == 0 ||  strcmp(input_type, filledpoly) == 0 || strcmp(input_type,filledpolygon) == 0  || strcmp(input_type,fpolygon) == 0  ){
  6471.         use_filled = TRUE;
  6472.         free(input_type);
  6473.         return POLY;
  6474.         }
  6475.         if( strcmp(input_type, ellipse) == 0){
  6476.         free(input_type);
  6477.         return ELLIPSE;
  6478.         }
  6479.         if( strcmp(input_type, fill) == 0 ){
  6480.         free(input_type);
  6481.         return FLOODFILL;
  6482.         }
  6483.         if( strcmp(input_type, string) == 0 ){
  6484.         free(input_type);
  6485.         return STRING;
  6486.         }
  6487.         if( strcmp(input_type, stringup) == 0 ){
  6488.         free(input_type);
  6489.         return STRINGUP;
  6490.         }
  6491.         if( strcmp(input_type, opacity) == 0 ){
  6492.         free(input_type);
  6493.         return OPACITY;
  6494.         }
  6495.         if( strcmp(input_type, comment) == 0){
  6496.         free(input_type);
  6497.         return COMMENT;
  6498.         }
  6499.         if( strcmp(input_type, end) == 0){
  6500.         free(input_type);
  6501.         return END;
  6502.         }
  6503.         if( strcmp(input_type, fellipse) == 0){
  6504.         free(input_type);
  6505.         use_filled = TRUE;
  6506.         return ELLIPSE;
  6507.         }      
  6508.         if( strcmp(input_type, blink) == 0 ){
  6509.         free(input_type);
  6510.         return BLINK;
  6511.         }
  6512.         if( strcmp(input_type, button) == 0){
  6513.         free(input_type);
  6514.         return BUTTON;
  6515.         }
  6516.         if( strcmp(input_type, translation) == 0 ||  strcmp(input_type, translate) == 0  ){
  6517.         free(input_type);
  6518.         return TRANSLATION;
  6519.         }
  6520.         if( strcmp(input_type, killtranslation) == 0 ||  strcmp(input_type, killtranslate) == 0){
  6521.         free(input_type);
  6522.         return KILLTRANSLATION;
  6523.         }
  6524.         if( strcmp(input_type, rotate) == 0){
  6525.         free(input_type);
  6526.         return ROTATE;
  6527.         }
  6528.         if( strcmp(input_type, affine) == 0){
  6529.         free(input_type);
  6530.         return AFFINE;
  6531.         }
  6532.         if( strcmp(input_type, killaffine) == 0){
  6533.         free(input_type);
  6534.         return KILLAFFINE;
  6535.         }
  6536.         if( strcmp(input_type, audio) == 0 ){
  6537.         free(input_type);
  6538.         return AUDIO;
  6539.         }
  6540.         if( strcmp(input_type, audioobject) == 0 ){
  6541.         free(input_type);
  6542.         return AUDIOOBJECT;
  6543.         }
  6544.         if( strcmp(input_type, slider) == 0 ){
  6545.         free(input_type);
  6546.         return SLIDER;
  6547.         }
  6548.         if( strcmp(input_type, copy) == 0 ){
  6549.         free(input_type);
  6550.         return COPY;
  6551.         }
  6552.         if( strcmp(input_type, copyresized) == 0 ){
  6553.         free(input_type);
  6554.         return COPYRESIZED;
  6555.         }
  6556.         if( strcmp(input_type, patternfill) == 0 ){
  6557.         free(input_type);
  6558.         return PATTERNFILL;
  6559.         }
  6560.         if( strcmp(input_type, hatchfill) == 0 ){
  6561.         free(input_type);
  6562.         return HATCHFILL;
  6563.         }
  6564.         if( strcmp(input_type, diafill) == 0  || strcmp(input_type, diamondfill) == 0  ){
  6565.         free(input_type);
  6566.         return DIAMONDFILL;
  6567.         }
  6568.         if( strcmp(input_type, dotfill) == 0 ){
  6569.         free(input_type);
  6570.         return DOTFILL;
  6571.         }
  6572.         if( strcmp(input_type, gridfill) == 0 ){
  6573.         free(input_type);
  6574.         return GRIDFILL;
  6575.         }
  6576.         if( strcmp(input_type, imagefill) == 0 ){
  6577.         free(input_type);
  6578.         return IMAGEFILL;
  6579.         }
  6580.         if( strcmp(input_type, clicktile_colors) == 0 ){
  6581.         free(input_type);
  6582.         return CLICKTILE_COLORS;
  6583.         }
  6584.         if( strcmp(input_type, clicktile) == 0 ){
  6585.         free(input_type);
  6586.         return CLICKTILE;
  6587.         }
  6588.         if( strcmp(input_type, xlogscale) == 0 ){
  6589.         free(input_type);
  6590.         return XLOGSCALE;
  6591.         }
  6592.         if( strcmp(input_type, ylogscale) == 0 ){
  6593.         free(input_type);
  6594.         return YLOGSCALE;
  6595.         }
  6596.         if( strcmp(input_type, xylogscale) == 0 ){
  6597.         free(input_type);
  6598.         return XYLOGSCALE;
  6599.         }
  6600.         if( strcmp(input_type, ylogscale) == 0 ){
  6601.         free(input_type);
  6602.         return YLOGSCALE;
  6603.         }
  6604.         if( strcmp(input_type, xlogbase) == 0 ){
  6605.         free(input_type);
  6606.         return XLOGBASE;
  6607.         }
  6608.         if( strcmp(input_type, ylogbase) == 0 ){
  6609.         free(input_type);
  6610.         return YLOGBASE;
  6611.         }
  6612.         if( strcmp(input_type, intooltip) == 0 ){
  6613.         free(input_type);
  6614.         return INTOOLTIP;
  6615.         }
  6616.         if( strcmp(input_type,video) == 0 ){
  6617.         free(input_type);
  6618.         return VIDEO;
  6619.         }
  6620.         if( strcmp(input_type,floodfill) == 0 || strcmp(input_type,fill) == 0 ){
  6621.         free(input_type);
  6622.         return FLOODFILL;
  6623.         }      
  6624.         if( strcmp(input_type,filltoborder) == 0 ){
  6625.         free(input_type);
  6626.         return FILLTOBORDER;
  6627.         }      
  6628.         if( strcmp(input_type,clickfill) == 0 ){
  6629.         free(input_type);
  6630.         return CLICKFILL;
  6631.         }      
  6632.         if( strcmp(input_type, replyformat) == 0 ){
  6633.         free(input_type);
  6634.         return REPLYFORMAT;
  6635.         }
  6636.         if( strcmp(input_type, pixelsize) == 0 ){
  6637.         free(input_type);
  6638.         return PIXELSIZE;
  6639.         }
  6640.         if( strcmp(input_type, setpixel) == 0 ){
  6641.         free(input_type);
  6642.         return SETPIXEL;
  6643.         }
  6644.         if( strcmp(input_type, pixels) == 0 ){
  6645.         free(input_type);
  6646.         return PIXELS;
  6647.         }
  6648.         if( strcmp(input_type, clickfillmarge) == 0 ){
  6649.         free(input_type);
  6650.         return CLICKFILLMARGE;
  6651.         }
  6652.         if( strcmp(input_type, xaxis) == 0 || strcmp(input_type, xaxistext) == 0 ){
  6653.         free(input_type);
  6654.         return X_AXIS_STRINGS;
  6655.         }
  6656.         if( strcmp(input_type, yaxis) == 0  ||  strcmp(input_type, yaxistext) == 0 ){
  6657.         free(input_type);
  6658.         return Y_AXIS_STRINGS;
  6659.         }
  6660.         if( strcmp(input_type, piechart) == 0  ){
  6661.         free(input_type);
  6662.         return PIECHART;
  6663.         }
  6664.         if( strcmp(input_type, barchart) == 0  ){
  6665.         free(input_type);
  6666.         return BARCHART;
  6667.         }
  6668.         if( strcmp(input_type, linegraph) == 0  ){
  6669.         free(input_type);
  6670.         return LINEGRAPH;
  6671.         }
  6672.         if( strcmp(input_type, clock) == 0  ){
  6673.         free(input_type);
  6674.         return CLOCK;
  6675.         }
  6676.         if( strcmp(input_type, legend) == 0  ){
  6677.         free(input_type);
  6678.         return LEGEND;
  6679.         }
  6680.         if( strcmp(input_type, legendcolors) == 0  ){
  6681.         free(input_type);
  6682.         return LEGENDCOLORS;
  6683.         }
  6684.         if( strcmp(input_type, xlabel) == 0  ){
  6685.         free(input_type);
  6686.         return XLABEL;
  6687.         }
  6688.         if( strcmp(input_type, ylabel) == 0  ){
  6689.         free(input_type);
  6690.         return YLABEL;
  6691.         }
  6692.         if( strcmp(input_type, animate) == 0  ){
  6693.         free(input_type);
  6694.         return ANIMATE;
  6695.         }
  6696.         /* these are bitmap related flydraw commmands...must be removed. eventually */
  6697.         if( strcmp(input_type, transparent) == 0 ){
  6698.         free(input_type);
  6699.         return TRANSPARENT;
  6700.         }
  6701.         if( strcmp(input_type, status) == 0 ){
  6702.         free(input_type);
  6703.         return STATUS;
  6704.         }
  6705.         if( strcmp(input_type, snaptogrid) == 0 ){
  6706.         free(input_type);
  6707.         return SNAPTOGRID;
  6708.         }
  6709.         if( strcmp(input_type, xsnaptogrid) == 0 ){
  6710.         free(input_type);
  6711.         return XSNAPTOGRID;
  6712.         }
  6713.         if( strcmp(input_type, ysnaptogrid) == 0 ){
  6714.         free(input_type);
  6715.         return YSNAPTOGRID;
  6716.         }
  6717.         if( strcmp(input_type, userinput_xy) == 0 ){
  6718.         free(input_type);
  6719.         return USERINPUT_XY;
  6720.         }
  6721.         if( strcmp(input_type, usertextarea_xy) == 0 ){
  6722.         free(input_type);
  6723.         return USERTEXTAREA_XY;
  6724.         }
  6725.         if( strcmp(input_type, sgraph) == 0 ){
  6726.         free(input_type);
  6727.         return SGRAPH;
  6728.         }
  6729.         free(input_type);
  6730.         ungetc(c,infile);
  6731.         return 0;
  6732. }
  6733.  
  6734.  
  6735.