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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 line_width = 1;
  103.     int decimals = 2;
  104.     int precision = 100; /* 10 = 1;100=2;1000=3 decimal display for mouse coordinates or grid coordinate */
  105.     int use_userdraw = FALSE; /* flag to indicate user interaction: incompatible with "drag & drop" code !! */
  106.     int drag_type = -1;/* 0,1,2 : xy,x,y */
  107.     int use_tooltip = FALSE;
  108.     char *tooltip_text = "Click here";
  109.     char *temp = ""; /* */
  110.     char *bgcolor = "";/* used for background of canvas_div ; default is tranparent */
  111.     char *stroke_color = "255,0,0";
  112.     char *fill_color = "0,255,0";
  113.     char *font_family = "12px Ariel"; /* commands xaxistext,yaxistext,legend,text/textup/string/stringup may us this */
  114.     char *font_color = "#00000";
  115.     char *draw_type = "points";
  116.     char *fly_font = "normal";
  117.     char *input_style = "";
  118.     char *flytext = "";
  119.     char *affine_matrix = "[1,0,0,1,0,0]";
  120.     int pixelsize = 1;
  121.     int reply_format = 0;
  122.     int input_cnt = 0;
  123.     int ext_img_cnt = 0;
  124.     int font_size = 12;
  125.     int dashtype[2] = { 2 , 2 };
  126.     int js_function[MAX_JS_FUNCTIONS]; /* javascript functions include objects on demand basis : only once per object type */
  127.     for(i=0;i<MAX_JS_FUNCTIONS;i++){js_function[i]=0;}
  128.     int arrow_head = 8; /* size in px*/
  129.     int crosshair_size = 10; /* size in px*/
  130.     int plot_steps = 150;
  131.     int found_size_command = 0;
  132.     int click_cnt = 1;
  133.     int clock_cnt = 0; /* counts the amount of clocks used -> unique object clock%d */
  134.     int linegraph_cnt = 0; /* identifier for command 'linegraph' ; multiple line graphs may be plotted in a single plot*/
  135.     int use_mouse_coordinates = FALSE;
  136.     double angle = 0.0;
  137.     int translate_x = 0;
  138.     int translate_y = 0;
  139.     int clickfillmarge = 20;
  140.     int animation_type = 9; /* == object type curve in drag library */
  141.     int use_input_xy = 0;
  142.     size_t string_length = 0;
  143.     double stroke_opacity = 0.8;
  144.     double fill_opacity = 0.8;
  145.     char *URL = "http://localhost/images";
  146.     memset(buffer,'\0',MAX_BUFFER);
  147.     void *tmp_buffer = "";
  148.    
  149.     /* default writing a unzipped js-include file into wims getfile directory */
  150.     char *w_wims_session = getenv("w_wims_session");
  151.     if(  w_wims_session == NULL || *w_wims_session == 0 ){
  152.         canvas_error("Hmmm, your wims environment does not exist...\nCanvasdraw should be used within wims.");
  153.     }
  154.     int L0=strlen(w_wims_session) + 21;
  155.     char *getfile_dir = my_newmem(L0); /* create memory to fit string precisely */
  156.     snprintf(getfile_dir,L0, "../sessions/%s/getfile",w_wims_session);/* string will fit precisely  */
  157.     mode_t process_mask = umask(0); /* check if file exists */
  158.     int result = mkdir(getfile_dir, S_IRWXU | S_IRWXG | S_IRWXO);
  159.     if( result == 0 || errno == EEXIST ){
  160.      umask(process_mask); /* be sure to set correct permission */
  161.      char *w_session = getenv("w_session");
  162.      int L1 = (int) (strlen(w_session)) + find_number_of_digits(canvas_root_id) + 48;
  163.     char *getfile_cmd = my_newmem(L1); /* create memory to fit string precisely */
  164.      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 */   
  165.     /* write the include tag to html page:<script type="text/javascript" src="wims.cgi?session=%s&cmd=getfile&special_parm=11223344_js"></script> */
  166.     /* now write file into getfile dir*/
  167.     char *w_wims_home = getenv("w_wims_home"); /* "/home/users/wims" : we need absolute path for location */
  168.     int L2 = (int) (strlen(w_wims_home)) + (int) (strlen(w_wims_session)) + find_number_of_digits(canvas_root_id) + 23;
  169.     char *location = my_newmem(L2); /* create memory to fit string precisely */
  170.     snprintf(location,L2,"%s/sessions/%s/getfile/%d.js",w_wims_home,w_wims_session,canvas_root_id);/*absolute path */
  171.     js_include_file = fopen(location,"w");/* open the file location for writing */
  172.     /* check on opening...if nogood : mount readonly? disk full? permissions not set correctly? */
  173.     if(js_include_file == NULL){ canvas_error("SHOULD NOT HAPPEN : could not write to javascript include file...check your system logfiles !" );}
  174.  
  175. /* ----------------------------------------------------- */
  176. /* while more lines to process */
  177.  
  178.     while(!finished){
  179.         if(line_number>1 && found_size_command == FALSE){canvas_error("command \"size xsize,ysize\" needs to come first ! ");}
  180.         type = get_token(infile);
  181.         done = FALSE;
  182.         /*
  183.         @canvasdraw
  184.         @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...)
  185.         @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>
  186.         */
  187.         switch(type){
  188.         case END:
  189.         finished = 1;
  190.         done = TRUE;
  191.         break;
  192.         case 0:
  193.             sync_input(infile);
  194.             break;
  195.         case COMMENT:
  196.             sync_input(infile);
  197.             break;
  198.         case EMPTY:
  199.             sync_input(infile);
  200.             break;
  201.         case SIZE:
  202.             /*
  203.             @size width,height
  204.             @set canvas size in pixels
  205.             @mandatory first command
  206.             @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)
  207.             */
  208.             found_size_command = TRUE;
  209.             xsize = (int)(abs(round(get_real(infile,0)))); /* just to be sure that sizes > 0 */
  210.             ysize = (int)(abs(round(get_real(infile,1))));
  211.             /* sometimes we want xrange / yrange to be in pixels...without telling x/y-range */
  212.             xmin = 0;xmax = xsize;
  213.             ymin = 0;ymax = ysize;
  214.  
  215. /*
  216.  The sequence in which stuff is finally printed is important !!
  217.  for example, when writing a 'include.js" the may not be a "script tag <script>" etc etc
  218. */
  219. 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);
  220. fprintf(js_include_file,"\n<!-- begin generated javascript include for canvasdraw -->\n");
  221. fprintf(stdout,"<!-- include actual object code via include file -->\n<script type=\"text/javascript\" src=\"%s\"></script>\n",getfile_cmd);
  222. fprintf(js_include_file,"var wims_canvas_function%d = function(){\n<!-- common used stuff -->\n\
  223. var xsize = %d;\
  224. var ysize = %d;\
  225. var canvas_div = document.getElementById(\"canvas_div%d\");\
  226. 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;};\
  227. 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;};\
  228. 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);};};\
  229. 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);};};\
  230. 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);};};\
  231. 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);};};\
  232. function scale_x_radius(rx){return parseInt(x2px(rx) - x2px(0));};\
  233. function scale_y_radius(ry){return parseInt(y2px(ry) - y2px(0));};\
  234. function distance(x1,y1,x2,y2){return parseInt(Math.sqrt( (x1-x2)*(x1-x2) + (y1-y2)*(y1-y2) ));};\
  235. 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) ));};\
  236. 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;};\
  237. var xlogbase = 10;\
  238. var ylogbase = 10;\
  239. var use_xlogscale = 0;\
  240. var use_ylogscale = 0;\
  241. var x_strings = null;\
  242. var y_strings = null;\
  243. var use_pan_and_zoom = 0;\
  244. var x_use_snap_to_grid = 0;\
  245. var y_use_snap_to_grid = 0;\
  246. var xstart = 0;\
  247. var ystart = 0",canvas_root_id,xsize,ysize,canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
  248. /* default add the drag code : nearly always used ...*/
  249. add_drag_code(js_include_file,DRAG_CANVAS,canvas_root_id);
  250.             break;
  251.         case XRANGE:
  252.         /*
  253.         @ xrange xmin,xmax
  254.         @ if not given: 0,xsize (eg in pixels)
  255.         */
  256.             for(i = 0 ; i<2; i++){
  257.                 switch(i){
  258.                     case 0: xmin = get_real(infile,0);break;
  259.                     case 1: xmax = get_real(infile,1);break;
  260.                     default: break;
  261.                 }
  262.             }
  263.             if(xmin >= xmax){canvas_error(" xrange is not OK : xmin &lt; xmax !\n");}
  264.             fprintf(js_include_file,"var xmin = %f;var xmax = %f;",xmin,xmax);
  265.             break;
  266.         case YRANGE:
  267.         /*
  268.         @ yrange ymin,ymax
  269.         @ if not given 0,ysize (eg in pixels)
  270.         */
  271.             for(i = 0 ; i<2; i++){
  272.                 switch(i){
  273.                     case 0: ymin = get_real(infile,0);break;
  274.                     case 1: ymax = get_real(infile,1);break;
  275.                     default: break;
  276.                 }
  277.             }
  278.             if(ymin >= ymax){canvas_error(" yrange is not OK : ymin &lt; ymax !\n");}
  279.             fprintf(js_include_file,"var ymin = %f;var ymax = %f;",ymin,ymax);
  280.             break;
  281.         case TRANGE:
  282.         /*
  283.         @ trange tmin,tmax
  284.         @ default -2,2
  285.         */
  286.             use_parametric = TRUE;
  287.             for(i = 0 ; i<2; i++){
  288.                 switch(i){
  289.                     case 0: tmin = get_real(infile,0);break;
  290.                     case 1: tmax = get_real(infile,1);break;
  291.                     default: break;
  292.                 }
  293.             }
  294.             if(tmin >= tmax ){canvas_error(" trange is not OK : tmin &lt; tmax!\n");}
  295.             break;
  296.         case LINEWIDTH:
  297.         /*
  298.         @ linewidth int
  299.         @ default 1
  300.         */
  301.             line_width = (int) (get_real(infile,1));
  302.             break;
  303.         case ARROWHEAD:
  304.         /*
  305.         @ arrowhead int
  306.         @ default 8 (pixels)
  307.         */
  308.             arrow_head = (int) (get_real(infile,1));
  309.             break;
  310.         case CROSSHAIRSIZE:
  311.         /*
  312.         @ crosshairsize int
  313.         @ default 10 (px)
  314.         */
  315.             crosshair_size = (int) (get_real(infile,1));
  316.             break;
  317.         case CROSSHAIR:
  318.         /*
  319.         @ crosshair x,y,color
  320.         @ draw a single crosshair point at (x;y) in color 'color'
  321.         @ use command 'crosshairsize int' and / or 'linewidth int'  to adust
  322.         @ may be set draggable / onclick
  323.         */
  324.             for(i=0;i<3;i++){
  325.                 switch(i){
  326.                     case 0: double_data[0] = get_real(infile,0);break; /* x */
  327.                     case 1: double_data[1] = get_real(infile,0);break; /* y */
  328.                     case 2: stroke_color = get_color(infile,1);/* name or hex color */
  329.                         decimals = find_number_of_digits(precision);
  330.                         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);
  331.                         click_cnt++;reset();
  332.                         break;
  333.                     default:break;
  334.                 }
  335.             }
  336.             break;
  337.         case CROSSHAIRS:
  338.         /*
  339.         @ crosshairs color,x1,y1,x2,y2,...,x_n,y_n
  340.         @ draw multiple crosshair points at given coordinates in color 'color'
  341.         @ use command 'crosshairsize int' and / or 'linewidth int'  to adust
  342.         @ may be set draggable / onclick individually (!)
  343.         */
  344.             stroke_color=get_color(infile,0); /* how nice: now the color comes first...*/
  345.             fill_color = stroke_color;
  346.             i=0;
  347.             while( ! done ){     /* get next item until EOL*/
  348.                 if(i > MAX_INT - 1){canvas_error("to many points in argument: repeat command multiple times to fit");}
  349.                 if(i%2 == 0 ){
  350.                     double_data[i] = get_real(infile,0); /* x */
  351.                 }
  352.                 else
  353.                 {
  354.                     double_data[i] = get_real(infile,1); /* y */
  355.                 }
  356.                 i++;
  357.             }
  358.             decimals = find_number_of_digits(precision);
  359.             for(c=0 ; c < i-1 ; c = c+2){
  360.                 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);
  361.                 click_cnt++;
  362.             }
  363.             reset();
  364.             break;
  365.         case POINT:
  366.         /*
  367.         @ point x,y,color
  368.         @ draw a single point at (x;y) in color 'color'
  369.         @ use command 'linewidth int'  to adust size
  370.         @ may be set draggable / onclick
  371.         @ will not resize on zooming <br />(command 'circle x,y,r,color' will resize on zooming)
  372.         */
  373.             for(i=0;i<3;i++){
  374.                 switch(i){
  375.                     case 0: double_data[0] = get_real(infile,0);break; /* x */
  376.                     case 1: double_data[1] = get_real(infile,0);break; /* y */
  377.                     case 2: stroke_color = get_color(infile,1);/* name or hex color */
  378.                     decimals = find_number_of_digits(precision);
  379.                     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);
  380.                     click_cnt++;break;
  381.                     default: break;
  382.                 }
  383.             }
  384.             reset();
  385.             break;
  386.         case POINTS:
  387.         /*
  388.         @ points color,x1,y1,x2,y2,...,x_n,y_n
  389.         @ draw multiple points at given coordinates in color 'color'
  390.         @ use command 'linewidth int'  to adust size
  391.         @ may be set draggable / onclick individually (!)
  392.         */
  393.             stroke_color=get_color(infile,0); /* how nice: now the color comes first...*/
  394.             fill_color = stroke_color;
  395.             i=0;
  396.             while( ! done ){     /* get next item until EOL*/
  397.                 if(i > MAX_INT - 1){canvas_error("to many points in argument: repeat command multiple times to fit");}
  398.                 if(i%2 == 0 ){
  399.                     double_data[i] = get_real(infile,0); /* x */
  400.                 }
  401.                 else
  402.                 {
  403.                     double_data[i] = get_real(infile,1); /* y */
  404.                 }
  405.                 i++;
  406.             }
  407.             decimals = find_number_of_digits(precision);           
  408.             for(c = 0 ; c < i-1 ; c = c+2){
  409.                 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);
  410.                 click_cnt++;
  411.             }
  412.             reset();
  413.             break;
  414.         case SEGMENT:
  415.         /*
  416.         @ segment x1,y1,x2,y2,color
  417.         @ draw a line segment between points (x1:y1)--(x2:y2) in color 'color'
  418.         @ may be set draggable / onclick
  419.         */
  420.             for(i=0;i<5;i++) {
  421.                 switch(i){
  422.                     case 0: double_data[0]= get_real(infile,0);break; /* x1-values */
  423.                     case 1: double_data[1]= get_real(infile,0);break; /* y1-values */
  424.                     case 2: double_data[2]= get_real(infile,0);break; /* x2-values */
  425.                     case 3: double_data[3]= get_real(infile,0);break; /* y2-values */
  426.                     case 4: stroke_color=get_color(infile,1);/* name or hex color */
  427.                         decimals = find_number_of_digits(precision);
  428.                         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);
  429.                         click_cnt++;reset();
  430.                         break;
  431.                     default: break;
  432.                 }
  433.             }
  434.             break;
  435.         case LINE:
  436.         /*
  437.         @ line x1,y1,x2,y2,color
  438.         @ draw a line through points (x1:y1)--(x2:y2) in color 'color'
  439.         @ or use command 'curve color,formula' to draw the line <br />(uses more points to draw the line; is however better draggable)
  440.         @ may be set draggable / onclick
  441.         */
  442.             for(i=0;i<5;i++){
  443.                 switch(i){
  444.                     case 0: double_data[10]= get_real(infile,0);break; /* x-values */
  445.                     case 1: double_data[11]= get_real(infile,0);break; /* y-values */
  446.                     case 2: double_data[12]= get_real(infile,0);break; /* x-values */
  447.                     case 3: double_data[13]= get_real(infile,0);break; /* y-values */
  448.                     case 4: stroke_color=get_color(infile,1);/* name or hex color */
  449.                     if( double_data[10] == double_data[12] ){ /* vertical line*/
  450.                         double_data[1] = xmin;
  451.                         double_data[3] = ymax;
  452.                         double_data[0] = double_data[10];
  453.                         double_data[2] = double_data[10];
  454.                     }
  455.                     else
  456.                     {
  457.                         if( double_data[11] == double_data[13] ){ /* horizontal line */
  458.                             double_data[1] = double_data[11];
  459.                             double_data[3] = double_data[11];
  460.                             double_data[0] = ymin;
  461.                             double_data[2] = xmax;
  462.                         }
  463.                         else
  464.                         {
  465.                         /* m */
  466.                         double_data[5] = (double_data[13] - double_data[11]) /(double_data[12] - double_data[10]);
  467.                         /* q */
  468.                         double_data[6] = double_data[11] - ((double_data[13] - double_data[11]) /(double_data[12] - double_data[10]))*double_data[10];
  469.                        
  470.                         /*xmin,m*xmin+q,xmax,m*xmax+q*/
  471.                        
  472.                             double_data[1] = (double_data[5])*(xmin)+(double_data[6]);
  473.                             double_data[3] = (double_data[5])*(xmax)+(double_data[6]);
  474.                             double_data[0] = xmin;
  475.                             double_data[2] = xmax;
  476.                         }
  477.                     }
  478.                     decimals = find_number_of_digits(precision);
  479.                     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);
  480.                     click_cnt++;reset();
  481.                     break;
  482.                 }
  483.             }
  484.             break;
  485.         case HLINE:
  486.         /*
  487.         @ hline x,y,color
  488.         @ draw a horizontal line through point (x:y) in color 'color'
  489.         @ or use command 'curve color,formula' to draw the line <br />(uses more points to draw the line; is however better draggable)
  490.         @ may be set draggable / onclick
  491.         */
  492.             for(i=0;i<3;i++) {
  493.                 switch(i){
  494.                     case 0: double_data[0] = get_real(infile,0);break; /* x-values */
  495.                     case 1: double_data[1] = get_real(infile,0);break; /* y-values */
  496.                     case 2: stroke_color = get_color(infile,1);/* name or hex color */
  497.                     double_data[3] = double_data[1];
  498.                     decimals = find_number_of_digits(precision);
  499.                     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);
  500.                     click_cnt++;reset();
  501.                     break;
  502.                 }
  503.             }
  504.             break;
  505.         case VLINE:
  506.         /*
  507.         @ vline x,y,color
  508.         @ draw a vertical line through point (x:y) in color 'color'
  509.         @ may be set draggable / onclick
  510.         */
  511.             for(i=0;i<3;i++) {
  512.                 switch(i){
  513.                     case 0: double_data[0] = get_real(infile,0);break; /* x-values */
  514.                     case 1: double_data[1] = get_real(infile,0);break; /* y-values */
  515.                     case 2: stroke_color=get_color(infile,1);/* name or hex color */
  516.                         double_data[2] = double_data[0];
  517.                         decimals = find_number_of_digits(precision);
  518.                         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);
  519.                         click_cnt++;reset();
  520.                     break;
  521.                 }
  522.             }
  523.             break;
  524.         case SQUARE:
  525.         /*
  526.         @ square x,y,side,color
  527.         @ draw a square with left top corner (x:y) with side 'side' in color 'color'
  528.         @ use command 'fsquare x,y,side,color' for a filled square
  529.         @ use command/keyword  'filled' before command 'square x,y,side,color'
  530.         @ use command 'fillcolor color' before 'fsquare' to set the fill colour.
  531.         @ may be set draggable / onclick
  532.         */
  533.             for(i=0;i<5;i++){
  534.                 switch(i){
  535.                     case 0:double_data[0] = get_real(infile,0);break; /* x-values */
  536.                     case 1:double_data[1] = get_real(infile,0);break; /* y-values */
  537.                     case 2:double_data[2] = get_real(infile,0);
  538.                            double_data[3] = double_data[2];
  539.                            break; /* x-values */
  540.                     case 3:stroke_color = get_color(infile,1);/* name or hex color */
  541.                         decimals = find_number_of_digits(precision);
  542.                         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);
  543.                         click_cnt++;reset();
  544.                         break;
  545.                 }
  546.             }
  547.             break;
  548.         case ROUNDRECT:
  549.         /*
  550.         @ roundrect x1,y1,x2,y2,radius,color
  551.         @ use command 'froundrect x1,y1,x2,y2,radius,color' for a filled rectangle
  552.         @ use command/keyword  'filled' before command 'roundrect x1,y1,x2,y2,radius,color'
  553.         @ use command 'fillcolor color' before 'froundrect' to set the fill colour.
  554.         @ may be set draggable / onclick
  555.         */
  556.             for(i=0;i<6;i++){
  557.                 switch(i){
  558.                     case 0:double_data[0] = get_real(infile,0);break; /* x-values */
  559.                     case 1:double_data[1] = get_real(infile,0);break; /* y-values */
  560.                     case 2:double_data[2] = get_real(infile,0);break; /* x-values */
  561.                     case 3:double_data[3] = get_real(infile,0);break; /* y-values */
  562.                     case 4:int_data[0] = (int) (get_real(infile,0));break; /* radius value in pixels */
  563.                     case 5:stroke_color = get_color(infile,1);/* name or hex color */
  564.                         decimals = find_number_of_digits(precision);
  565.                         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);
  566.                         click_cnt++;reset();
  567.                     break;
  568.                 }
  569.             }
  570.             break;
  571.         case RECT:
  572.         /*
  573.         @ rect x1,y1,x2,y2,color
  574.         @ use command 'rect x1,y1,x2,y2,color' for a filled rectangle
  575.         @ use command/keyword  'filled' before command 'rect x1,y1,x2,y2,color'
  576.         @ use command 'fillcolor color' before 'frect' to set the fill colour.
  577.         @ may be set draggable / onclick
  578.         */
  579.             for(i=0;i<5;i++){
  580.                 switch(i){
  581.                     case 0:double_data[0] = get_real(infile,0);break; /* x-values */
  582.                     case 1:double_data[1] = get_real(infile,0);break; /* y-values */
  583.                     case 2:double_data[2] = get_real(infile,0);break; /* x-values */
  584.                     case 3:double_data[3] = get_real(infile,0);break; /* y-values */
  585.                     case 4:stroke_color = get_color(infile,1);/* name or hex color */
  586.                         decimals = find_number_of_digits(precision);
  587.                         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);
  588.                         click_cnt++;reset();
  589.                         break;
  590.                 }
  591.             }
  592.             break;
  593.         case POLYLINE:
  594.         /*
  595.         @ polyline color,x1,y1,x2,y2...x_n,y_n
  596.         @ may be set draggable / onclick
  597.         */
  598.             stroke_color=get_color(infile,0); /* how nice: now the color comes first...*/
  599.             i=0;
  600.             c=0;
  601.             while( ! done ){     /* get next item until EOL*/
  602.                 if(i > MAX_INT - 1){canvas_error("to many points in argument: repeat command multiple times to fit");}
  603.                 for( c = 0 ; c < 2; c++){
  604.                     if(c == 0 ){
  605.                         double_data[i] = get_real(infile,0);
  606.                         i++;
  607.                     }
  608.                     else
  609.                     {
  610.                         double_data[i] = get_real(infile,1);
  611.                         i++;
  612.                     }
  613.                 }
  614.             }
  615.             /* draw path : not closed & not filled */
  616.             decimals = find_number_of_digits(precision);
  617.             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);
  618.             click_cnt++;reset();
  619.             break;
  620.         case POLY:
  621.         /*
  622.         @ poly color,x1,y1,x2,y2...x_n,y_n
  623.         @ draw closed polygon
  624.         @ use command 'fpoly' to fill it, use command 'fillcolor color' to set the fill color
  625.         @ may be set draggable / onclick
  626.         */
  627.             stroke_color=get_color(infile,0); /* how nice: now the color comes first...*/
  628.             i=0;
  629.             c=0;
  630.             while( ! done ){     /* get next item until EOL*/
  631.                 if(i > MAX_INT - 1){canvas_error("to many points in argument: repeat command multiple times to fit");}
  632.                 for( c = 0 ; c < 2; c++){
  633.                     if(c == 0 ){
  634.                         double_data[i] = get_real(infile,0);
  635.                         i++;
  636.                     }
  637.                     else
  638.                     {
  639.                         double_data[i] = get_real(infile,1);
  640.                         i++;
  641.                     }
  642.                 }
  643.             }
  644.             /* draw path :  closed & optional filled */
  645.                 decimals = find_number_of_digits(precision);
  646.                 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);
  647.                 click_cnt++;reset();
  648.             break;
  649.         case ARC:
  650.         /*
  651.          @ arc xc,yc,width,height,start_angle,end_angle,color
  652.          @ can not be set "onclick" or "drag xy"
  653.          @ attention: width == height == radius in pixels)
  654.         */
  655.             for(i=0;i<7;i++){
  656.                 switch(i){
  657.                     case 0:double_data[0] = get_real(infile,0);break; /* x-values */
  658.                     case 1:double_data[1] = get_real(infile,0);break; /* y-values */
  659.                     case 2:int_data[0] = (int)(get_real(infile,0));break; /* width in pixels ! */
  660.                     case 3:int_data[1] = (int)(get_real(infile,0));break; /* height in pixels ! */
  661.                     case 4:double_data[2] = get_real(infile,0);break; /* start angle in degrees */
  662.                     case 5:double_data[3] = get_real(infile,0);break; /* end angle in degrees */
  663.                     case 6:stroke_color = get_color(infile,1);/* name or hex color */
  664.                     /* in Shape library:
  665.                         x[0] = x[1] = xc
  666.                         y[0] = y[1] = yc
  667.                         w[0] = w[1] = radius = width = height  
  668.                         h[0] = start_angle ; h[1] = end_engle
  669.                     */
  670.                         decimals = find_number_of_digits(precision);
  671.                         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);
  672.                         reset();
  673.                     break;
  674.                 }
  675.             }
  676.             break;
  677.         case ELLIPSE:
  678.         /*
  679.         @ ellipse xc,yc,radius_x,radius_y,color
  680.         @ a ellipse with center xc/yc in x/y-range
  681.         @ radius_x and radius_y are in pixels
  682.         @ may be set draggable / onclick
  683.         @ will shrink / expand on zoom out / zoom in
  684.         */
  685.             for(i=0;i<5;i++){
  686.                 switch(i){
  687.                     case 0:double_data[0] = get_real(infile,0);break; /* x-values */
  688.                     case 1:double_data[1] = get_real(infile,0);break; /* y-values */
  689.                     case 2:double_data[2] = get_real(infile,0);break; /* rx -> px  */
  690.                     case 3:double_data[3] = get_real(infile,0);break; /* ry -> px  */
  691.                     case 4:stroke_color = get_color(infile,1);/* name or hex color */
  692.                         decimals = find_number_of_digits(precision);
  693.                         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);
  694.                         click_cnt++;reset();
  695.                     break;
  696.                 }
  697.             }
  698.             break;
  699.         case DASHTYPE:
  700.         /*
  701.         @ dashtype int ,int
  702.         @ When dashed is set, the objects will be drawn with this dashtyp
  703.         @ default value "dashtype 2,2"
  704.         */
  705.             for(i=0;i<2;i++){
  706.                 switch(i){
  707.                     case 0 : dashtype[0] = (int) line_width*( get_real(infile,0)) ; break;
  708.                     case 1 : dashtype[1] = (int) line_width*( get_real(infile,1)) ; break;
  709.                 }
  710.             }
  711.         break;
  712.         case CIRCLE:
  713.         /*
  714.         @ circle xc,yc,width (2*r in pixels),color
  715.         @ use command 'fcircle xc,yc,d,color' or command 'filled' for a filled disk
  716.         @ use command 'fillcolor color' to set the fillcolor
  717.         @ may be set draggable / onclick
  718.         @ will shrink / expand on zoom out / zoom in
  719.         */
  720.             for(i=0;i<4;i++){
  721.                 switch(i){
  722.                     case 0: double_data[0] = get_real(infile,0);break; /* x */
  723.                     case 1: double_data[1] = get_real(infile,0);break; /* y */
  724.                     case 2: double_data[2] = px2x((get_real(infile,0))/2) - px2x(0);break; /* radius in 'dx' xrange*/
  725.                     case 3: stroke_color = get_color(infile,1);/* name or hex color */
  726.                         decimals = find_number_of_digits(precision);
  727.                         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);
  728.                         click_cnt++;reset();
  729.                     break;
  730.                 }
  731.             }
  732.             break;
  733.         case RAYS:
  734.         /*
  735.          @ rays color,xc,yc,x1,y1,x2,y2,x3,y3...x_n,y_n
  736.          @ draw rays in color 'color' and center (xc:yc)
  737.          @ may be set draggable or onclick (every individual ray)
  738.         */
  739.             stroke_color=get_color(infile,0);
  740.             fill_color = stroke_color;
  741.             double_data[0] = get_real(infile,0);/* xc */
  742.             double_data[1] = get_real(infile,0);/* yc */
  743.             i=2;
  744.             while( ! done ){     /* get next item until EOL*/
  745.                 if(i > MAX_INT - 1){canvas_error("in command rays to many points / rays in argument: repeat command multiple times to fit");}
  746.                 if(i%2 == 0 ){
  747.                     double_data[i] = get_real(infile,0); /* x */
  748.                 }
  749.                 else
  750.                 {
  751.                     double_data[i] = get_real(infile,1); /* y */
  752.                 }
  753.             fprintf(js_include_file,"/* double_data[%d] = %f */\n",i,double_data[i]);
  754.                 i++;
  755.             }
  756.            
  757.             if( i%2 != 0 ){canvas_error("in command rays: unpaired x or y value");}
  758.             decimals = find_number_of_digits(precision);           
  759.             for(c=2; c<i;c = c+2){
  760.                 click_cnt++;
  761.                 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);
  762.             }
  763.             reset();
  764.             break;
  765.         case ARROW:
  766.         /*
  767.         @ arrow x1,y1,x2,y2,h,color
  768.         @ draw a single headed arrow/vector from (x1:y1) to (x2:y2)<br />with arrowhead size h in px and in color 'color'
  769.         @ use command 'linewidth int' to adjust thickness of the arrow
  770.         @ may be set draggable / onclick
  771.         */
  772.             for(i=0;i<6;i++){
  773.                 switch(i){
  774.                     case 0: double_data[0] = get_real(infile,0);break; /* x */
  775.                     case 1: double_data[1] = get_real(infile,0);break; /* y */
  776.                     case 2: double_data[2] = get_real(infile,0);break; /* x */
  777.                     case 3: double_data[3] = get_real(infile,0);break; /* y */
  778.                     case 4: arrow_head = (int) get_real(infile,0);break;/* h */
  779.                     case 5: stroke_color = get_color(infile,1);/* name or hex color */
  780.                         decimals = find_number_of_digits(precision);
  781.                         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);
  782.                         click_cnt++;
  783.                         reset();
  784.                         break;
  785.                 }
  786.             }
  787.             break;
  788.         case ARROW2:
  789.         /*
  790.         @ arrow2 x1,y1,x2,y2,h,color
  791.         @ draw a double headed arrow/vector from (x1:y1) to (x2:y2)<br />with arrowhead size h in px and  in color 'color'
  792.         @ use command 'arrowhead int' to adjust the arrow head size
  793.         @ use command 'linewidth int' to adjust thickness of the arrow
  794.         @ may be set draggable / onclick
  795.         */
  796.             for(i=0;i<6;i++){
  797.                 switch(i){
  798.                     case 0: double_data[0] = get_real(infile,0);break; /* x */
  799.                     case 1: double_data[1] = get_real(infile,0);break; /* y */
  800.                     case 2: double_data[2] = get_real(infile,0);break; /* x */
  801.                     case 3: double_data[3] = get_real(infile,0);break; /* y */
  802.                     case 4: arrow_head = (int) get_real(infile,0);break;/* h */
  803.                     case 5: stroke_color = get_color(infile,1);/* name or hex color */
  804.                         decimals = find_number_of_digits(precision);
  805.                         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);
  806.                         click_cnt++;reset();
  807.                         break;
  808.                 }
  809.             }
  810.             break;
  811.         case PARALLEL:
  812.         /*
  813.          @ parallel x1,y1,x2,y2,dx,dy,n,[colorname or #hexcolor]
  814.          @ can not be set "onclick" or "drag xy"
  815.         */
  816.             for( i = 0;i < 8; i++ ){
  817.                 switch(i){
  818.                     case 0: double_data[0] = get_real(infile,0);break; /* x1-values  -> x-pixels*/
  819.                     case 1: double_data[1] = get_real(infile,0);break; /* y1-values  -> y-pixels*/
  820.                     case 2: double_data[2] = get_real(infile,0);break; /* x2-values  -> x-pixels*/
  821.                     case 3: double_data[3] = get_real(infile,0);break; /* y2-values  -> y-pixels*/
  822.                     case 4: double_data[4] = xmin + get_real(infile,0);break; /* xv -> x-pixels */
  823.                     case 5: double_data[5] = ymax + get_real(infile,0);break; /* yv -> y-pixels */
  824.                     case 6: int_data[0] = (int) (get_real(infile,0));break; /* n  */
  825.                     case 7: stroke_color=get_color(infile,1);/* name or hex color */
  826.                     decimals = find_number_of_digits(precision);
  827.                     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);
  828.                     click_cnt++;reset();
  829.                     break;
  830.                     default: break;
  831.                 }
  832.             }
  833.             break;
  834.         case TRIANGLE:
  835.         /*
  836.          @triangle x1,y1,x2,y2,x3,y3,color
  837.          @may be set draggable / onclic
  838.         */
  839.             for(i=0;i<7;i++){
  840.                 switch(i){
  841.                     case 0: double_data[0] = get_real(infile,0);break; /* x */
  842.                     case 1: double_data[1] = get_real(infile,0);break; /* y */
  843.                     case 2: double_data[2] = get_real(infile,0);break; /* x */
  844.                     case 3: double_data[3] = get_real(infile,0);break; /* y */
  845.                     case 4: double_data[4] = get_real(infile,0);break; /* x */
  846.                     case 5: double_data[5] = get_real(infile,0);break; /* y */
  847.                     case 6: stroke_color = get_color(infile,1);/* name or hex color */
  848.                         decimals = find_number_of_digits(precision);
  849.                         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);
  850.                         click_cnt++;reset();
  851.                         break;
  852.                     default: break;
  853.                 }
  854.             }
  855.             break;
  856.         case LATTICE:
  857.         /*
  858.          @lattice x0,y0,xv1,yv1,xv2,yv2,n1,n2,color
  859.          @can not be set "onclick" or "drag xy"
  860.         */
  861.             if( js_function[DRAW_LATTICE] != 1 ){ js_function[DRAW_LATTICE] = 1;}
  862.             for( i = 0; i<9; i++){
  863.                 switch(i){
  864.                     case 0: int_data[0] = x2px(get_real(infile,0));break; /* x0-values  -> x-pixels*/
  865.                     case 1: int_data[1] = y2px(get_real(infile,0));break; /* y0-values  -> y-pixels*/
  866.                     case 2: int_data[2] = (int) (get_real(infile,0));break; /* x1-values  -> x-pixels*/
  867.                     case 3: int_data[3] = (int) (get_real(infile,0));break; /* y1-values  -> y-pixels*/
  868.                     case 4: int_data[4] = (int) (get_real(infile,0));break; /* x2-values  -> x-pixels*/
  869.                     case 5: int_data[5] = (int) (get_real(infile,0));break; /* y2-values  -> y-pixels*/
  870.                     case 6: int_data[6] = (int) (get_real(infile,0));break; /* n1-values */
  871.                     case 7: int_data[7] = (int) (get_real(infile,0));break; /* n2-values */
  872.                     case 8: stroke_color=get_color(infile,1);
  873.                         decimals = find_number_of_digits(precision);
  874.                         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);
  875.                         check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  876.                         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);
  877.                         add_to_buffer(tmp_buffer);
  878.                     break;
  879.                     default:break;
  880.                 }
  881.             }
  882.             reset();
  883.             break;
  884.         case SNAPTOGRID:
  885.         /*
  886.          @ snaptogrid
  887.          @ keyword (no arguments rewquired) needs to be defined before command 'userdraw' and after command 'grid'
  888.          @ in case of userdraw the drawn points will snap to xmajor / ymajor grid
  889.          @ 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 />
  890.         */
  891.         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");
  892.         break;
  893.         case XSNAPTOGRID:
  894.         /*
  895.          @ xsnaptogrid
  896.          @ keyword (no arguments rewquired) needs to be defined before command 'userdraw' and after command 'grid'
  897.          @ in case of userdraw the drawn points will snap to xmajor grid
  898.          @ 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 />
  899.         */
  900.         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");
  901.         break;
  902.         case YSNAPTOGRID:
  903.         /*
  904.          @ ysnaptogrid
  905.          @ keyword (no arguments rewquired) needs to be defined before command 'userdraw' and after command 'grid'
  906.          @ in case of userdraw the drawn points will snap to ymajor grid
  907.          @ 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 />
  908.         */
  909.         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");
  910.         break;
  911.         case USERTEXTAREA_XY:
  912.         /*
  913.         @ usertextarea_xy
  914.         @ keyword
  915.         @ to be used in combination with command "userdraw object_type,color" wherein object_type is only segment / polyline for the time being...
  916.         @ if set two textareas are added to the document<br />(one for x-values , one for y-values)
  917.         @ the student may use this as correction for (x:y) on a drawing (or to draw without mouse, using just the coordinates)
  918.         @ can not be combined with command "intooltip tiptext" <br />note: the 'tooltip div element' is used for placing inputfields
  919.         @ user drawings will not zoom on zooming (or pan on panning)
  920.         */
  921.             if(use_tooltip == TRUE){canvas_error("usertextarea_xy can not be combined with intooltip command");}
  922.             if( use_input_xy == 1 ){canvas_error("usertextarea_xy can not be combined with userinput_xy command");}
  923.             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;};");
  924.             use_input_xy = 2;
  925.             break;
  926.         case USERINPUT_XY:
  927.         /*
  928.         @ userinput_xy
  929.         @ keyword
  930.         @ to be used in combination with command "userdraw object_type,color"
  931.         @ 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)
  932.         @ the student may use this as correction for (x:y) on a drawing (or to draw without mouse, using just the coordinates)
  933.         @ 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.
  934.         @ can not be combined with command "intooltip tiptext" <br />note: the 'tooltip div element' is used for placing inputfields
  935.         @ user drawings will not zoom on zooming (or pan on panning)
  936.         */
  937.             if(use_tooltip == TRUE){canvas_error("userinput_xy can not be combined with intooltip command");}
  938.             /* add simple eval check to avoid code injection with unprotected eval(string) */
  939.             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.\"+$0;}else{valid = false;};});if (!valid){alert(\"hmmm \"+exp+\" ?\"); exp = null;}else{try { exp = eval(exp); } catch (e) {alert(\"Invalid arithmetic expression\"); exp = null;};};return exp;};");
  940.             use_input_xy = 1;
  941.             break;
  942.         case USERDRAW:
  943.         /*
  944.         @ userdraw object_type,color
  945.         @ implemented object_type: <ul><li>point</li><li>points</li><li>crosshair</li><li>crosshairs</li><li>line</li><li>lines</li><li>segment</li><li>segments</li><li>polyline</li><li>circle</li><li>circles</li><li>arrow</li><li>arrows</li><li>triangle</li><li>polygon</li><li>poly[3-9]</li><li>rect</li><li>roundrect</li><li>rects</li><li>roundrects</li><li>freehandline</li><li>freehandlines</li><li>path</li><li>paths</li><li>text</li></ul>
  946.         @ note: mouselisteners are only active if "$status != done " (eg only drawing in an active/non-finished exercise) <br /> to overrule use command/keyword "status" (no arguments required)
  947.         @ 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
  948.         @ note: object_type polygone: Will be finished (the object is closed) when clicked on the first point of the polygone again.
  949.         @ 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)
  950.         @ use command "filled", "opacity int,int"  and "fillcolor color" to trigger coloured filling of fillable objects
  951.         @ use command "dashed" and/or "dashtype int,int" to trigger dashing
  952.         @ use command "replyformat int" to control / adjust output formatting of javascript function read_canvas();
  953.         @ may be combined with onclick or drag xy  of other components of flyscript objects (although not very usefull...)
  954.         @ may be combined with keyword 'userinput_xy' or
  955.         @ 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.!
  956.         */
  957.             if( use_userdraw == TRUE ){ /* only one object type may be drawn*/
  958.                 canvas_error("Only one userdraw primitive may be used: read documentation !!");
  959.             }
  960.             use_userdraw = TRUE;
  961.             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]);
  962.             draw_type = get_string_argument(infile,0);
  963.             stroke_color = get_color(infile,1);
  964.             if( strcmp(draw_type,"point") == 0 ){
  965.                 if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
  966.                 if(reply_format < 1 ){reply_format = 8;}
  967.                 /* 7 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n in x/y-range */
  968.                 if(use_input_xy == 1){
  969.                     add_input_circle(js_include_file,1,1);
  970.                     add_input_xy(js_include_file,canvas_root_id);
  971.                 }
  972.                 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);
  973.             }
  974.             else
  975.             if( strcmp(draw_type,"points") == 0 ){
  976.                 if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
  977.                 if(reply_format < 1 ){reply_format = 8;}
  978.                 /* 7 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n in x/y-range */
  979.                 if(use_input_xy == 1){
  980.                     add_input_circle(js_include_file,1,2);
  981.                     add_input_xy(js_include_file,canvas_root_id);
  982.                 }
  983.                 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);
  984.             }
  985.             else
  986.             if( strcmp(draw_type,"segment") == 0 ){
  987.                 if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
  988.                 if( js_function[DRAW_SEGMENTS] != 1 ){ js_function[DRAW_SEGMENTS] = 1;}
  989.                 if(reply_format < 1){reply_format = 11;}
  990.                 if(use_input_xy == 1){
  991.                     add_input_segment(js_include_file,1);
  992.                     add_input_x1y1x2y2(js_include_file,canvas_root_id);
  993.                 }
  994.                 add_js_segments(js_include_file,1,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
  995.             }
  996.             else
  997.             if( strcmp(draw_type,"polyline") == 0 ){
  998.                 if( js_function[DRAW_POLYLINE] != 1 ){ js_function[DRAW_POLYLINE] = 1;}
  999.                 if(reply_format < 1){reply_format = 23;}
  1000.                 if( use_input_xy == 1 ){
  1001.                     add_input_polyline(js_include_file);
  1002.                     add_input_xy(js_include_file,canvas_root_id);
  1003.                 }
  1004.                 add_js_polyline(js_include_file,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
  1005.             }
  1006.             else
  1007.             if( strcmp(draw_type,"segments") == 0 ){
  1008.                 if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
  1009.                 if( js_function[DRAW_SEGMENTS] != 1 ){ js_function[DRAW_SEGMENTS] = 1;}
  1010.                 if(reply_format < 1){reply_format = 11;}
  1011.                 if(use_input_xy == 1){
  1012.                     add_input_segment(js_include_file,2);
  1013.                     add_input_x1y1x2y2(js_include_file,canvas_root_id);
  1014.                 }
  1015.                 add_js_segments(js_include_file,2,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
  1016.             }
  1017.             else
  1018.             if( strcmp(draw_type,"circle") == 0 ){
  1019.                 if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
  1020.                 if(reply_format < 1){reply_format = 10;}
  1021.                 /* 9 = x1:y1:r1,x2:y2:r2,x3:y3:r3,x4:y4:r3...x_n:y_n:r_n in x/y-range */
  1022.                 if(use_input_xy == 1){
  1023.                     add_input_circle(js_include_file,2,1);
  1024.                     add_input_xyr(js_include_file,canvas_root_id);
  1025.                 }
  1026.                 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]);
  1027.             }
  1028.             else
  1029.             if( strcmp(draw_type,"circles") == 0 ){
  1030.                 if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
  1031.                 if(reply_format < 1){reply_format = 10;}
  1032.                 /* 9 = x1:y1:r1,x2:y2:r2,x3:y3:r3,x4:y4:r3...x_n:y_n:r_n in x/y-range */
  1033.                 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]);
  1034.                 if(use_input_xy == 1){
  1035.                     add_input_circle(js_include_file,2,2);
  1036.                     add_input_xyr(js_include_file,canvas_root_id);
  1037.                 }
  1038.             }
  1039.             else
  1040.             if(strcmp(draw_type,"crosshair") == 0 ){
  1041.                 if( js_function[DRAW_CROSSHAIRS] != 1 ){ js_function[DRAW_CROSSHAIRS] = 1;}
  1042.                 if(reply_format < 1){reply_format = 8;}
  1043.                 /* 7 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n in x/y-range */
  1044.                 add_js_crosshairs(js_include_file,1,draw_type,line_width,crosshair_size ,stroke_color,stroke_opacity);
  1045.                 if(use_input_xy == 1){
  1046.                     add_input_crosshair(js_include_file,1);
  1047.                     add_input_xy(js_include_file,canvas_root_id);
  1048.                 }
  1049.             }
  1050.             else
  1051.             if(strcmp(draw_type,"crosshairs") == 0 ){
  1052.                 if( js_function[DRAW_CROSSHAIRS] != 1 ){ js_function[DRAW_CROSSHAIRS] = 1;}
  1053.                 if(reply_format < 1){reply_format = 8;}
  1054.                 /* 7 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n in x/y-range */
  1055.                 add_js_crosshairs(js_include_file,2,draw_type,line_width,crosshair_size ,stroke_color,stroke_opacity);
  1056.                 if(use_input_xy == 1){
  1057.                     add_input_crosshair(js_include_file,2);
  1058.                     add_input_xy(js_include_file,canvas_root_id);
  1059.                 }
  1060.             }
  1061.             else
  1062.             if(strcmp(draw_type,"freehandline") == 0 ){
  1063.                 if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
  1064.                 if(reply_format < 1){reply_format = 6;}
  1065.                 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]);  
  1066.                 if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
  1067.             }
  1068.             else
  1069.             if(strcmp(draw_type,"freehandlines") == 0 ){
  1070.                 if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
  1071.                 if(reply_format < 1){reply_format = 6;}
  1072.                 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]);  
  1073.                 if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
  1074.             }
  1075.             else
  1076.             if(strcmp(draw_type,"path") == 0 ){
  1077.                 if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
  1078.                 if(reply_format < 1){reply_format = 6;}
  1079.                 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]);  
  1080.                 if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
  1081.             }
  1082.             else
  1083.             if(strcmp(draw_type,"paths") == 0 ){
  1084.                 if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
  1085.                 if(reply_format < 1){reply_format = 6;}
  1086.                 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]);  
  1087.                 if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
  1088.             }
  1089.             else
  1090.             if(strcmp(draw_type,"arrows") == 0 ){
  1091.                 if( js_function[DRAW_ARROWS] != 1 ){ js_function[DRAW_ARROWS] = 1;}
  1092.                 if(reply_format < 1){reply_format = 11;}
  1093.                 add_js_arrows(js_include_file,2,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1],arrow_head);
  1094.                 if(use_input_xy == 1){
  1095.                     add_input_arrow(js_include_file,2);
  1096.                     add_input_x1y1x2y2(js_include_file,canvas_root_id);
  1097.                 }
  1098.             }
  1099.             else
  1100.             if(strcmp(draw_type,"arrow") == 0 ){
  1101.                 if( js_function[DRAW_ARROWS] != 1 ){ js_function[DRAW_ARROWS] = 1;}
  1102.                 if(reply_format < 1){reply_format = 11;}
  1103.                 add_js_arrows(js_include_file,1,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1],arrow_head);
  1104.                 if(use_input_xy == 1){
  1105.                     add_input_arrow(js_include_file,1);
  1106.                     add_input_x1y1x2y2(js_include_file,canvas_root_id);
  1107.                 }
  1108.             }
  1109.             else
  1110.             if(strcmp(draw_type,"polygon") == 0){
  1111.                 if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
  1112.                 if(reply_format < 1){reply_format = 2;}
  1113.                 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]);
  1114.                 if( use_input_xy == 2 ){
  1115.                   add_textarea_polygon(js_include_file);
  1116.                   add_textarea_xy(js_include_file,canvas_root_id);
  1117.                 }
  1118.             }
  1119.             else
  1120.             if(strncmp(draw_type,"poly",4) == 0){
  1121.                 if(strlen(draw_type) < 5){canvas_error("use command \"userdraw poly[3-9],color\" eg userdraw poly6,blue");}
  1122.                 if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
  1123.                 if(reply_format < 1){reply_format = 2;}
  1124.                 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]);
  1125.                 if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
  1126.             }
  1127.             else
  1128.             if(strcmp(draw_type,"triangle") == 0){
  1129.                 if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
  1130.                 if(reply_format < 1){reply_format = 2;}
  1131.                 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]);
  1132.                 if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
  1133.             }
  1134.             else
  1135.             if( strcmp(draw_type,"line") == 0 ){
  1136.                 if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
  1137.                 if( js_function[DRAW_LINES] != 1 ){ js_function[DRAW_LINES] = 1;}
  1138.                 if(reply_format < 1){reply_format = 11;}
  1139.                 add_js_lines(js_include_file,1,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
  1140.                 if( use_input_xy == 1 ){
  1141.                     add_input_line(js_include_file,1);
  1142.                     add_input_x1y1x2y2(js_include_file,canvas_root_id);
  1143.                 }
  1144.             }
  1145.             else
  1146.             if( strcmp(draw_type,"lines") == 0 ){
  1147.                 if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
  1148.                 if( js_function[DRAW_LINES] != 1 ){ js_function[DRAW_LINES] = 1;}
  1149.                 if(reply_format < 1){reply_format = 11;}
  1150.                 add_js_lines(js_include_file,2,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
  1151.                 if( use_input_xy == 1 ){
  1152.                     add_input_line(js_include_file,2);
  1153.                     add_input_x1y1x2y2(js_include_file,canvas_root_id);
  1154.                 }
  1155.             }
  1156.             else
  1157.             if( strcmp(draw_type,"rects") == 0){
  1158.                 if( js_function[DRAW_RECTS] != 1 ){ js_function[DRAW_RECTS] = 1;}
  1159.                 if(reply_format < 1){reply_format = 2;}
  1160.                 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]);
  1161.                 if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
  1162.             }
  1163.             else
  1164.             if( strcmp(draw_type,"roundrects") == 0){
  1165.                 if( js_function[DRAW_ROUNDRECTS] != 1 ){ js_function[DRAW_ROUNDRECTS] = 1;}
  1166.                 if(reply_format < 1){reply_format = 2;}
  1167.                 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]);
  1168.                 if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
  1169.             }
  1170.             else
  1171.             if( strcmp(draw_type,"rect") == 0){
  1172.                 if( js_function[DRAW_RECTS] != 1 ){ js_function[DRAW_RECTS] = 1;}
  1173.                 if(reply_format < 1){reply_format = 2;}
  1174.                 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]);
  1175.                 if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
  1176.             }
  1177.             else
  1178.             if( strcmp(draw_type,"roundrect") == 0){
  1179.                 if( js_function[DRAW_ROUNDRECTS] != 1 ){ js_function[DRAW_ROUNDRECTS] = 1;}
  1180.                 if(reply_format < 1){reply_format = 2;}
  1181.                 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]);
  1182.                 if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
  1183.             }
  1184.             else
  1185.             if( strcmp(draw_type,"text") == 0){
  1186.                 if( js_function[DRAW_TEXTS] != 1 ){ js_function[DRAW_TEXTS] = 1;}      
  1187.                 if(reply_format < 1){reply_format = 17;}
  1188.                 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);
  1189.                 if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
  1190.             }
  1191.             else
  1192.             {
  1193.                 canvas_error("unknown drawtype or typo? ");
  1194.             }
  1195.             reset();
  1196.         break;
  1197.         case PLOTSTEPS:
  1198.             /*
  1199.              @ plotsteps a_number
  1200.              @ default 150
  1201.              @ use with care !
  1202.             */
  1203.             plot_steps = (int) (get_real(infile,1));
  1204.             break;
  1205.         case FONTSIZE:
  1206.         /*
  1207.          @fontsize font_size
  1208.          @default value 12
  1209.         */
  1210.             font_size = (int) (get_real(infile,1));
  1211.             break;
  1212.         case FONTCOLOR:
  1213.         /*
  1214.          @fontcolor color
  1215.          @color: hexcolor or colorname
  1216.          @default: black
  1217.          @example usage: x/y-axis text
  1218.         */
  1219.             font_color = get_color(infile,1);
  1220.             break;
  1221.         case ANIMATE:
  1222.         /*
  1223.          @animate type
  1224.          @type may be "point" (nothing else , yet...)
  1225.          @the point is a filled rectangle ; adjust colour with command 'fillcolor colorname/hexnumber'
  1226.          @will animate a point on the next plot/curve command
  1227.          @the curve will not be draw
  1228.          @moves repeatedly from xmin to xmax
  1229.         */
  1230.             if( strstr(get_string(infile,1),"point") != 0 ){animation_type = 15;}else{canvas_error("the only animation type (for now) is \"point\"...");}
  1231.             break;
  1232.         case CURVE:
  1233.         /*
  1234.          @curve color,formula(x)
  1235.          @plot color,formula(x)
  1236.          @use command trange before command curve / plot  (trange -pi,pi)<br />curve color,formula1(t),formula2(t)
  1237.          @use command "precision" to increase the number of digits of the plotted points
  1238.          @use command "plotsteps" to increase / decrease the amount of plotted points (default 150)
  1239.          @may be set draggable / onclick
  1240.         */
  1241.             if( use_parametric == TRUE ){ /* parametric color,fun1(t),fun2(t)*/
  1242.                 use_parametric = FALSE;
  1243.                 stroke_color = get_color(infile,0);
  1244.                 char *fun1 = get_string_argument(infile,0);
  1245.                 char *fun2 = get_string_argument(infile,1);
  1246.                 if( strlen(fun1) == 0 || strlen(fun2) == 0 ){canvas_error("parametric functions are NOT OK !");}
  1247.                 use_parametric = FALSE;
  1248.                 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);
  1249.                 click_cnt++;
  1250.             }
  1251.             else
  1252.             {
  1253.                 stroke_color = get_color(infile,0);
  1254.                 char *fun1 = get_string_argument(infile,1);
  1255.                 if( strlen(fun1) == 0 ){canvas_error("function is NOT OK !");} 
  1256.                 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);
  1257.                 click_cnt++;
  1258.             }
  1259.             animation_type = 9;/* rest to curve plotting without animation */
  1260.             reset();
  1261.             break;
  1262.         case FLY_TEXT:
  1263.         /*
  1264.         @ text fontcolor,x,y,font,text_string
  1265.         @ font may be described by keywords : giant,huge,normal,small,tiny
  1266.         @ use command 'fontsize' to increase base fontsize for the keywords
  1267.         @ may be set "onclick" or "drag xy"
  1268.         @ backwards compatible with flydraw
  1269.         @ unicode supported: text red,0,0,huge,\\u2232
  1270.         @ use command 'string' and 'fontfamily' for a more fine grained control over html5 canvas text element
  1271.         @ 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.
  1272.         */
  1273.             for(i = 0; i < 5 ;i++){
  1274.                 switch(i){
  1275.                     case 0: stroke_color = get_color(infile,0);break;/* font_color == stroke_color name or hex color */
  1276.                     case 1: double_data[0] = get_real(infile,0);break; /* x */
  1277.                     case 2: double_data[1] = get_real(infile,0);break; /* y */
  1278.                     case 3: fly_font = get_string_argument(infile,0);
  1279.                             if(strcmp(fly_font,"giant") == 0){
  1280.                                 font_size = (int)(font_size + 24);
  1281.                             }
  1282.                             else
  1283.                             {
  1284.                                 if(strcmp(fly_font,"huge") == 0){
  1285.                                     font_size = (int)(font_size + 14);
  1286.                                 }
  1287.                                 else
  1288.                                 {
  1289.                                     if(strcmp(fly_font,"large") == 0){
  1290.                                         font_size = (int)(font_size + 6);
  1291.                                         }
  1292.                                         else
  1293.                                         {
  1294.                                             if(strcmp(fly_font,"small") == 0){
  1295.                                                 font_size = (int)(font_size - 4);
  1296.                                                 if(font_size<0){font_size = 8;}
  1297.                                         }
  1298.                                     }
  1299.                                 }
  1300.                             }
  1301.                             break; /* font_size ! */
  1302.                     case 4:
  1303.                         temp = get_string_argument(infile,1);
  1304.                         decimals = find_number_of_digits(precision);
  1305.                         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);
  1306.                         click_cnt++;reset();break;
  1307.                     default:break;
  1308.                 }
  1309.             }
  1310.             break;
  1311.         case FLY_TEXTUP:
  1312.         /*
  1313.          @ textup fontcolor,x,y,font,text_string
  1314.          @ can <b>not</b> be set "onclick" or "drag xy" (because of translaton matrix...mouse incompatible)
  1315.          @ font may be described by keywords : giant,huge,normal,small,tiny
  1316.          @ use command 'fontsize' to increase base fontsize for the keywords
  1317.          @ backwards compatible with flydraw
  1318.          @ unicode supported: textup red,0,0,huge,\\u2232
  1319.          @ use command 'stringup' and 'fontfamily' for a more fine grained control over html5 canvas text element
  1320.          @ 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.
  1321.         */
  1322.             if( js_function[DRAW_TEXTS] != 1 ){ js_function[DRAW_TEXTS] = 1;}  
  1323.             for(i = 0; i<5 ;i++){
  1324.                 switch(i){
  1325.                     case 0: font_color = get_color(infile,0);break;/* name or hex color */
  1326.                     case 1: int_data[0] = x2px(get_real(infile,0));break; /* x */
  1327.                     case 2: int_data[1] = y2px(get_real(infile,0));break; /* y */
  1328.                     case 3: fly_font = get_string_argument(infile,0);
  1329.                             if(strcmp(fly_font,"giant") == 0){
  1330.                                 font_size = (int)(font_size + 24);
  1331.                             }
  1332.                             else
  1333.                             {
  1334.                                 if(strcmp(fly_font,"huge") == 0){
  1335.                                     font_size = (int)(font_size + 14);
  1336.                                 }
  1337.                                 else
  1338.                                 {
  1339.                                     if(strcmp(fly_font,"large") == 0){
  1340.                                         font_size = (int)(font_size + 6);
  1341.                                         }
  1342.                                         else
  1343.                                         {
  1344.                                             if(strcmp(fly_font,"small") == 0){
  1345.                                                 font_size = (int)(font_size - 4);
  1346.                                                 if(font_size<0){font_size = 8;}
  1347.                                         }
  1348.                                     }
  1349.                                 }
  1350.                             }
  1351.                             break; /* font_size ! */
  1352.                     case 4:
  1353.                     decimals = find_number_of_digits(precision);
  1354.                     temp = get_string_argument(infile,1);
  1355.                     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);
  1356.                     check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  1357.                     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);
  1358.                     add_to_buffer(tmp_buffer);
  1359.                     break;
  1360.                     default:break;
  1361.                 }
  1362.             }
  1363.             reset();
  1364.             break;
  1365.         case FONTFAMILY:
  1366.         /*
  1367.          @ fontfamily font_description
  1368.          @ set the font family; for browsers that support it
  1369.          @ font_description: Ariel ,Courier, Helvetica etc
  1370.          @ 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
  1371.          @ use correct syntax : 'font style' 'font size'px 'fontfamily'
  1372.         */
  1373.             font_family = get_string(infile,1);
  1374.             break;
  1375.         case STRINGUP:
  1376.         /*
  1377.          @ stringup color,x,y,rotation_degrees,the text string
  1378.          @ can <b>not</b> be set "onclick" or "drag xy" (because of translaton matrix...mouse incompatible)
  1379.          @ unicode supported: stringup red,0,0,45,\\u2232
  1380.          @ use a command like 'fontfamily bold 34px Courier' <br />to set fonts on browser that support font change
  1381.  
  1382.         */
  1383.             if( js_function[DRAW_TEXTS] != 1 ){ js_function[DRAW_TEXTS] = 1;}   /* can not be added to shape library : rotate / mouse issues */
  1384.             for(i=0;i<6;i++){
  1385.                 switch(i){
  1386.                     case 0: font_color = get_color(infile,0);break;/* name or hex color */
  1387.                     case 1: int_data[0] = x2px(get_real(infile,0));break; /* x */
  1388.                     case 2: int_data[1] = y2px(get_real(infile,0));break; /* y */
  1389.                     case 3: double_data[0] = get_real(infile,0);break;/* rotation */
  1390.                     case 4: decimals = find_number_of_digits(precision);
  1391.                             temp = get_string_argument(infile,1);
  1392.                             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);
  1393.                             check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  1394.                             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);
  1395.                             add_to_buffer(tmp_buffer);
  1396.                             break;
  1397.                     default:break;
  1398.                 }
  1399.             }
  1400.             reset();
  1401.             break;
  1402.         case STRING:
  1403.         /*
  1404.          @ string color,x,y,the text string
  1405.          @ may be set "onclick" or "drag xy"
  1406.          @ unicode supported: string red,0,0,\\u2232
  1407.          @ use a command like 'fontfamily italic 24px Ariel' <br />to set fonts on browser that support font change
  1408.         */
  1409.             for(i=0;i<5;i++){
  1410.                 switch(i){
  1411.                     case 0: stroke_color = get_color(infile,0);break;/* name or hex color */
  1412.                     case 1: double_data[0] = get_real(infile,0);break; /* x in xrange*/
  1413.                     case 2: double_data[1] = get_real(infile,0);break; /* y in yrange*/
  1414.                     case 3: decimals = find_number_of_digits(precision);
  1415.                         temp = get_string_argument(infile,1);
  1416.                         decimals = find_number_of_digits(precision);
  1417.                         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);
  1418.                         click_cnt++;reset();break;
  1419.                             break;
  1420.                     default:break;
  1421.                 }
  1422.             }
  1423.             break;
  1424.         case MATHML:
  1425.         /*
  1426.         @ mathml x1,y1,x2,y2,mathml_string
  1427.         @ mathml will be displayed in a rectangle left top (x1:y1) , right bottom (x2:y2)
  1428.         @ can be set onclick <br />(however dragging is not supported)<br />javascript:read_dragdrop(); will return click number of mathml-object
  1429.         @ 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();"
  1430.         @ 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....
  1431.        
  1432.         */
  1433.             if( js_function[DRAW_XML] != 1 ){ js_function[DRAW_XML] = 1;}
  1434.             for(i=0;i<5;i++){
  1435.                 switch(i){
  1436.                     case 0: int_data[0]=x2px(get_real(infile,0));break; /* x in x/y-range coord system -> pixel width */
  1437.                     case 1: int_data[1]=y2px(get_real(infile,0));break; /* y in x/y-range coord system  -> pixel height */
  1438.                     case 2: int_data[2]=x2px(get_real(infile,0)) - int_data[0];break; /* width in x/y-range coord system -> pixel width */
  1439.                     case 3: int_data[3]=y2px(get_real(infile,0)) - int_data[1];break; /* height in x/y-range coord system  -> pixel height */
  1440.                     case 4: decimals = find_number_of_digits(precision);
  1441.                             if(onclick == 1 ){ onclick = click_cnt;click_cnt++;}
  1442.                             temp = get_string(infile,1);
  1443.                             if( strstr(temp,"\"") != 0 ){ temp = str_replace(temp,"\"","'"); }
  1444.                             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);
  1445.                             check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  1446.                             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);
  1447.                             add_to_buffer(tmp_buffer);
  1448.                             /*
  1449.                              in case inputs are present , trigger adding the read_mathml()
  1450.                              if no other reply_format is defined
  1451.                              note: all other reply types will include a reading of elements with id='mathml'+p)
  1452.                              */
  1453.                             if(strstr(temp,"mathml0") != NULL){
  1454.                              if(reply_format < 1 ){reply_format = 16;} /* no other reply type is defined */
  1455.                             }
  1456.                             break;
  1457.                     default:break;
  1458.                 }
  1459.             }
  1460.             reset();
  1461.             break;
  1462.         case HTTP:
  1463.         /*
  1464.          @http x1,y1,x2,y2,http://some_adress.com
  1465.          @an active html-page will be displayed in an "iframe" rectangle left top (x1:y1) , right bottom (x2:y2)
  1466.          @do not use interactivity (or mouse) if the mouse needs to be active in the iframe
  1467.          @can not be 'set onclick' or 'drag xy'
  1468.         */
  1469.             if( js_function[DRAW_HTTP] != 1 ){ js_function[DRAW_HTTP] = 1;}    
  1470.             for(i=0;i<5;i++){
  1471.                 switch(i){
  1472.                     case 0: int_data[0]=x2px(get_real(infile,0));break; /* x in x/y-range coord system -> pixel width */
  1473.                     case 1: int_data[1]=y2px(get_real(infile,0));break; /* y in x/y-range coord system  -> pixel height */
  1474.                     case 2: int_data[2]=x2px(get_real(infile,0)) - int_data[0];break; /* width in x/y-range coord system -> pixel width */
  1475.                     case 3: int_data[3]=y2px(get_real(infile,0)) - int_data[1];break; /* height in x/y-range coord system  -> pixel height */
  1476.                     case 4: decimals = find_number_of_digits(precision);
  1477.                             temp = get_string(infile,1);
  1478.                             if(strstr(temp,"\"") != 0 ){ temp = str_replace(temp,"\"","'");}
  1479.                             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);
  1480.                             check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  1481.                             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);
  1482.                             add_to_buffer(tmp_buffer);
  1483.                     break;
  1484.                 }
  1485.             }
  1486.             reset();
  1487.             break;
  1488.         case HTML:
  1489.         /*
  1490.          @ html x1,y1,x2,y2,html_string
  1491.          @ all tags are allowed
  1492.          @ can be set onclick <br />(dragging not supported)<br />javascript:read_dragdrop(); will return click number of mathml-object
  1493.          @ 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.
  1494.          
  1495.          note: uses the same code as 'mathml'
  1496.         */
  1497.             break;
  1498.         case X_AXIS_STRINGS:
  1499.         /*
  1500.          @ xaxis num1:string1:num2:string2:num3:string3:num4:string4:....num_n:string_n
  1501.          @ xaxistext num1:string1:num2:string2:num3:string3:num4:string4:....num_n:string_n
  1502.          @ use these x-axis values in stead of default xmin...xmax
  1503.          @ use command "fontcolor", "fontsize" , "fontfamily" to adjust font <br />defaults: black,12,Ariel
  1504.          @ if the 'x-axis words' are to big amd will overlap, a simple alternating offset will be applied
  1505.          @ 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
  1506.          @ 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
  1507.         */
  1508.             temp = get_string(infile,1);
  1509.             if( strstr(temp,":") != 0 ){ temp = str_replace(temp,":","\",\"");}
  1510.             if( strstr(temp,"pi") != 0 ){ temp = str_replace(temp,"pi","(3.1415927)");}/* we need to replace pi for javascript y-value*/
  1511.             fprintf(js_include_file,"x_strings = [\"%s\"];\n ",temp);
  1512.             use_axis_numbering = 1;
  1513.             break;
  1514.         case Y_AXIS_STRINGS:
  1515.         /*
  1516.          @ yaxis num1:string1:num2:string2:num3:string3:num4:string4:....num_n:string_n
  1517.          @ yaxistext num1:string1:num2:string2:num3:string3:num4:string4:....num_n:string_n
  1518.          @ use command "fontcolor", "fontsize" , "fontfamily" to adjust font <br />defaults: black,12,Ariel
  1519.          @ use these y-axis values in stead of default ymin...ymax
  1520.          @ 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
  1521.         */
  1522.             temp = get_string(infile,1);
  1523.             if( strstr(temp,":") != 0 ){ temp = str_replace(temp,":","\",\"");}
  1524.             if( strstr(temp,"pi") != 0 ){ temp = str_replace(temp,"pi","(3.1415927)");}/* we need to replace pi for javascript y-value*/
  1525.             fprintf(js_include_file,"y_strings = [\"%s\"];\n ",temp);
  1526.             use_axis_numbering = 1;
  1527.             break;
  1528.          
  1529.         case AXIS_NUMBERING:
  1530.         /*
  1531.             @ axisnumbering
  1532.             @ keyword, no aguments required
  1533.         */
  1534.             use_axis_numbering = 1;
  1535.             break;
  1536.         case AXIS:
  1537.         /*
  1538.             @ axis
  1539.             @ keyword, no aguments required
  1540.  
  1541.         */
  1542.             use_axis = TRUE;
  1543.             break;
  1544.         case SGRAPH:
  1545.         /*
  1546.          @ sgraph xstart,ystart,xmajor,ymajor,xminor,yminor,majorgrid_color,minorgrid_color
  1547.          @ primitive implementation of a 'broken scale' graph...
  1548.          @ not very versatile.
  1549.          @ 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
  1550.         */
  1551.             if( js_function[DRAW_SGRAPH] != 1 ){ js_function[DRAW_SGRAPH] = 1;}
  1552.             for(i = 0 ; i < 8 ;i++){
  1553.                 switch(i){
  1554.                     case 0:double_data[0] = get_real(infile,0);break;
  1555.                     case 1:double_data[1] = get_real(infile,0);break;
  1556.                     case 2:double_data[2] = get_real(infile,0);break;
  1557.                     case 3:double_data[3] = get_real(infile,0);break;
  1558.                     case 4:int_data[0] = (int)(get_real(infile,0));break;
  1559.                     case 5:int_data[1] = (int)(get_real(infile,0));break;
  1560.                     case 6:stroke_color = get_color(infile,0);break;
  1561.                     case 7:font_color = get_color(infile,1);
  1562.                     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);
  1563.                     check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  1564.                     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);
  1565.                     add_to_buffer(tmp_buffer);
  1566.                     break;
  1567.                     default:break;
  1568.                 }
  1569.             }
  1570.             /* sgraph(canvas_type,precision,xmajor,ymajor,xminor,yminor,majorcolor,minorcolor,fontfamily,opacity)*/
  1571.             break;
  1572.         case GRID:/* xmajor,ymajor,color [,xminor,yminor,tick length (px) ,color]*/
  1573.         /*
  1574.          @ grid step_x,step_y,gridcolor
  1575.          @ use command "fontcolor", "fontsize" , "fontfamily" to adjust font <br />defaults: black,12,Ariel
  1576.          @ 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
  1577.          @ 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)
  1578.          @ can not be set "onclick" or "drag xy"
  1579.          @ 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')
  1580.          @ 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')
  1581.          @ 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')
  1582.         */
  1583.             if( js_function[DRAW_YLOGSCALE] == 1 ){canvas_error("only one grid type is allowed...");}
  1584.             if( js_function[DRAW_GRID] != 1 ){ js_function[DRAW_GRID] = 1;}
  1585.             for(i=0;i<4;i++){
  1586.                 switch(i){
  1587.                     case 0:double_data[0] = get_real(infile,0);break;/* xmajor */
  1588.                     case 1:double_data[1] = get_real(infile,0);break;/* ymajor */
  1589.                     case 2:
  1590.                     if( use_axis == TRUE ){
  1591.                         stroke_color = get_color(infile,0);
  1592.                         done = FALSE;
  1593.                         int_data[0] = (int) (get_real(infile,0));/* xminor */
  1594.                         int_data[1] = (int) (get_real(infile,0));/* yminor */
  1595.                         int_data[2] = (int) (get_real(infile,0));/* tic_length */
  1596.                         fill_color = get_color(infile,1); /* used as axis_color*/
  1597.                     }
  1598.                     else
  1599.                     {
  1600.                         int_data[0] = 1;
  1601.                         int_data[1] = 1;
  1602.                         stroke_color = get_color(infile,1);
  1603.                         fill_color = stroke_color;
  1604.                     }
  1605.                     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 !");}
  1606.                     /* set snap_x snap_y values in pixels */
  1607.                     fprintf(js_include_file,"snap_x = %f;snap_y = %f\n;",double_data[0] / int_data[0],double_data[1] / int_data[1]);
  1608. /* 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){ */
  1609.  
  1610.                     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);
  1611.                     check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  1612.                     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);
  1613.                     add_to_buffer(tmp_buffer);
  1614.                     break;
  1615.                 }
  1616.             }
  1617.             reset();
  1618.             break;
  1619.         case OPACITY:
  1620.         /*
  1621.         @ opacity 0-255,0-255
  1622.         @
  1623.         */
  1624.             for(i = 0 ; i<2;i++){
  1625.                 switch(i){
  1626.                     case 0: double_data[0]=(int)(get_real(infile,0));break;
  1627.                     case 1: double_data[1]=(int)(get_real(infile,1));break;
  1628.                     default: break;
  1629.                 }
  1630.             }
  1631.             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 ? */
  1632.             stroke_opacity = (double) (0.0039215*double_data[0]);/* 0.0 - 1.0 */
  1633.             fill_opacity = (double) (0.0039215*double_data[1]);/* 0.0 - 1.0 */
  1634.             break;
  1635.         case ROTATE:
  1636.         /*
  1637.          @rotate rotation_angle
  1638.          @
  1639.         */
  1640.             use_rotate = TRUE;
  1641.             use_translate = TRUE;
  1642.             translate_x = x2px(0);
  1643.             translate_y = y2px(0);
  1644.             angle = get_real(infile,1);
  1645.             break;
  1646.         case KILLAFFINE:
  1647.         /*
  1648.         @ killaffine
  1649.         @ keyword : resets the transformation matrix to 1,0,0,1,0,0
  1650.         */
  1651.             use_affine = FALSE;
  1652.             snprintf(affine_matrix,14,"[1,0,0,1,0,0]");    
  1653.             break;
  1654.         case AFFINE:
  1655.         /*
  1656.          @affine a,b,c,d,tx,ty
  1657.          @ defines a transformation matrix for subsequent objects
  1658.          @ use keyword 'killaffine' to end the transformation
  1659.          @ note 1: only 'draggable' / 'noclick' objects can be transformed.
  1660.          @ note 2: do not use 'onclick' or 'drag xy' with tranformation objects : the mouse coordinates do not get transformed (yet)
  1661.          @ note 3: no matrix operations on the transformation matrix implemented (yet)
  1662.          @ a : Scales the drawings horizontally
  1663.          @ b : Skews the drawings horizontally
  1664.          @ c : Skews the drawings vertically
  1665.          @ d : Scales the drawings vertically
  1666.          @ tx: Moves the drawings horizontally in pixels !
  1667.          @ ty: Moves the drawings vertically in pixels !
  1668.         */
  1669.             for(i = 0 ; i<6;i++){
  1670.                 switch(i){
  1671.                     case 0: double_data[0] = get_real(infile,0);break;
  1672.                     case 1: double_data[1] = get_real(infile,0);break;
  1673.                     case 2: double_data[2] = get_real(infile,0);break;
  1674.                     case 3: double_data[3] = get_real(infile,0);break;
  1675.                     case 4: int_data[0] = (int)(get_real(infile,0));break;
  1676.                     case 5: int_data[1] = (int)(get_real(infile,1));
  1677.                         use_affine = TRUE;
  1678.                         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]);
  1679.                         check_string_length(string_length);affine_matrix = my_newmem(string_length+1);
  1680.                         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]);    
  1681.                     break;
  1682.                     default: break;
  1683.                 }
  1684.             }
  1685.         break;
  1686.         case KILLTRANSLATION:
  1687.         /*
  1688.          killtranslation
  1689.         */
  1690.             break;
  1691.         case TRANSLATION:
  1692.         /*
  1693.          @translation tx,ty
  1694.          @
  1695.         */
  1696.             use_translate = TRUE;
  1697.             translate_x = get_real(infile,0);
  1698.             translate_y = get_real(infile,1);
  1699.             break;
  1700.         case DASHED:
  1701.         /*
  1702.         @ keyword "dashed"
  1703.         @ next object will be drawn with a dashed line
  1704.         @ change dashing scheme by using command "dashtype int,int)
  1705.         */
  1706.             use_dashed = TRUE;
  1707.             break;
  1708.         case FILLED:
  1709.         /*
  1710.         @ keyword "filled"
  1711.         @ the next 'fillable' object (only) will be filled
  1712.         @ use command "fillcolor color" to set fillcolor
  1713.         @ use command "opacity 0-255,0-255" to set stroke and fill-opacity
  1714.         @ 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 !
  1715.         */
  1716.             use_filled = TRUE;
  1717.             break;
  1718.         case STYLE:
  1719.         /*
  1720.          @highlight color,opacity,linewidth
  1721.          @ NOT IMPLEMENTED
  1722.          @ use command "onclick" : when the object receives a userclick it will increase it's linewidth
  1723.         */
  1724.             break;
  1725.         case FILLCOLOR:
  1726.         /*
  1727.         @ fillcolor colorname or #hex
  1728.         @ Set the color for a filled object : mainly used for command 'userdraw obj,stroke_color'
  1729.         @ All fillable massive object will have a fillcolor == strokecolor (just to be compatible with flydraw...)
  1730.         */
  1731.             fill_color = get_color(infile,1);
  1732.             break;
  1733.         case STROKECOLOR:
  1734.         /*
  1735.         @ strokecolor colorname or #hex
  1736.         @ to be used for commands that do not supply a color argument (like command 'linegraph')
  1737.         */
  1738.             stroke_color = get_color(infile,1);
  1739.             break;
  1740.         case BGIMAGE:
  1741.         /*
  1742.          @bgimage image_location
  1743.          @use an image as background .<br />(we use the background of 'canvas_div' )
  1744.          @the background image will be resized to match "width = xsize" and "height = ysize"
  1745.         */
  1746.         URL = get_string(infile,1);
  1747.         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);
  1748.             break;
  1749.         case BGCOLOR:
  1750.         /*
  1751.          @bgcolor colorname or #hex
  1752.          @use this color as background of the "div" containing the canvas(es)
  1753.         */
  1754.         /* [255,255,255]*/
  1755.             bgcolor = get_string(infile,1);
  1756.             if(strstr(bgcolor,"#") == NULL){ /* convert colorname -> #ff00ff */
  1757.                 int found = 0;
  1758.                 for( i = 0; i < NUMBER_OF_COLORNAMES ; i++ ){
  1759.                     if( strcmp( colors[i].name , bgcolor ) == 0 ){
  1760.                         bgcolor = colors[i].hex;
  1761.                         found = 1;
  1762.                         break;
  1763.                     }
  1764.                 }
  1765.                 if(found == 0){canvas_error("your bgcolor is not in my rgb.txt data list : use hexcolor...something like #a0ffc4");}
  1766.             }
  1767.             fprintf(js_include_file,"<!-- set background color of canvas div -->\ncanvas_div.style.backgroundColor = \"%s\";canvas_div.style.opacity = %f;\n",bgcolor,fill_opacity);
  1768.             break;
  1769.         case COPY:
  1770.         /*
  1771.         @ copy x,y,x1,y1,x2,y2,[filename URL]
  1772.         @ Insert the region from (x1,y1) to (x2,y2) (in pixels) of [filename] to (x,y) in x/y-range
  1773.         @ If x1=y1=x2=y2=-1, the whole [filename URL] is copied.
  1774.         @ [filename] is the URL of the image   
  1775.         @ URL is normal URL of network reachable image file location<br />(eg special url for 'classexo' not -yet- implemented)
  1776.         @ 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
  1777.         @ if you want to draw / userdraw  on an "imported" image, make sure it is transparent.<br />for example GNUPlot: set terminal gif transparent
  1778.  
  1779.         context.drawImage(img,sx,sy,swidth,sheight,x,y,width,height);
  1780.         draw_external_image(canvas_type,URL,sx,sy,swidth,sheight,x,y,width,height,drag_drop){
  1781.         */
  1782.             for(i = 0 ; i<7;i++){
  1783.                 switch(i){
  1784.                     case 0: int_data[0]=x2px(get_real(infile,0));break; /* x left top corner in x/y range  */
  1785.                     case 1: int_data[1]=y2px(get_real(infile,0));break; /* y left top corner in x/y range */
  1786.                     case 2: int_data[2]=(int)(get_real(infile,0));break;/* x1 in px of external image */
  1787.                     case 3: int_data[3]=(int)(get_real(infile,0));break;/* y1 in px of external image */
  1788.                     case 4: int_data[4]=(int)(get_real(infile,0));break;/* x2 --> width  */
  1789.                     case 5: int_data[5]=(int)(get_real(infile,0)) ;break;/* y2 --> height */
  1790.                     case 6: URL = get_string(infile,1);
  1791.                             int_data[6] = int_data[4] - int_data[2];/* swidth & width (if not scaling )*/
  1792.                             int_data[7] = int_data[5] - int_data[3];/* sheight & height (if not scaling )*/
  1793.                             if( drag_type > -1 ){
  1794.                                 if( js_function[DRAG_EXTERNAL_IMAGE] != 1 ){ js_function[DRAG_EXTERNAL_IMAGE] = 1;}
  1795.                                 if(reply_format < 1 ){reply_format = 20;}
  1796.                                 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);
  1797.                                 check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  1798.                                 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);                       
  1799.                                 drag_type = -1;
  1800.                                 ext_img_cnt++;
  1801.                             }
  1802.                             else
  1803.                             {
  1804.                                 if( js_function[DRAW_EXTERNAL_IMAGE] != 1 ){ js_function[DRAW_EXTERNAL_IMAGE] = 1;}
  1805.                                 /*
  1806.                                 draw_external_image = function(URL,sx,sy,swidth,sheight,x0,y0,width,height,draggable){\n\
  1807.                                 */
  1808.                                 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]);
  1809.                                 check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  1810.                                 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]);
  1811.                             }
  1812.                             add_to_buffer(tmp_buffer);
  1813.                             break;
  1814.                     default: break;
  1815.                 }
  1816.             }
  1817.             reset();
  1818.             break;
  1819. /*
  1820. context.drawImage(img,sx,sy,swidth,sheight,x,y,width,height);
  1821. img     Specifies the image, canvas, or video element to use
  1822. sx      The x coordinate where to start clipping : x1 = int_data[0]
  1823. sy      The y coordinate where to start clipping : x2 = int_data[1]
  1824. swidth  The width of the clipped image : int_data[2] - int_data[0]
  1825. sheight The height of the clipped image : int_data[3] - int_data[1]
  1826. x       The x coordinate where to place the image on the canvas : dx1 = int_data[4]
  1827. y       The y coordinate where to place the image on the canvas : dy1 = int_data[5]
  1828. width   The width of the image to use (stretch or reduce the image) : dx2 - dx1 = int_data[6]
  1829. height  The height of the image to use (stretch or reduce the image) : dy2 - dy1 = int_data[7]
  1830. */
  1831.         case COPYRESIZED:
  1832.         /*
  1833.         @ copyresized x1,y2,x2,y2,dx1,dy1,dx2,dy2,image_file_url
  1834.         @ 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
  1835.         @ If x1=y1=x2=y2=-1, the whole [filename / URL ] is copied and resized.
  1836.         @ URL is normal URL of network reachable image file location<br />(eg special url for 'classexo' not -yet- implemented)
  1837.         @ 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
  1838.         @ if you want to draw / userdraw  on an "imported" image, make sure it is transparent.<br />for example GNUPlot: set terminal gif transparent
  1839.         */
  1840.             for(i = 0 ; i<9;i++){
  1841.                 switch(i){
  1842.                     case 0: int_data[0] = (int)(get_real(infile,0));break; /* x1 */
  1843.                     case 1: int_data[1] = (int)(get_real(infile,0));break; /* y1 */
  1844.                     case 2: int_data[2] = (int)(get_real(infile,0));break;/* x2 */
  1845.                     case 3: int_data[3] = (int)(get_real(infile,0));break;/* y2 */
  1846.                     case 4: int_data[4] = x2px(get_real(infile,0));break;/* dx1 */
  1847.                     case 5: int_data[5] = y2px(get_real(infile,0));break;/* dy1 */
  1848.                     case 6: int_data[6] = x2px(get_real(infile,0));break;/* dx2 */
  1849.                     case 7: int_data[7] = y2px(get_real(infile,0));break;/* dy2 */
  1850.                     case 8: URL = get_string(infile,1);
  1851.                             if( drag_type > -1 ){
  1852.                                 if( js_function[DRAG_EXTERNAL_IMAGE] != 1 ){ js_function[DRAG_EXTERNAL_IMAGE] = 1;}
  1853.                                 if(reply_format < 1 ){reply_format = 20;}
  1854.                                 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);
  1855.                                 check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  1856.                                 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);
  1857.                                 drag_type = -1;
  1858.                                 ext_img_cnt++;
  1859.                             }
  1860.                             else
  1861.                             {
  1862.                                 if( js_function[DRAW_EXTERNAL_IMAGE] != 1 ){ js_function[DRAW_EXTERNAL_IMAGE] = 1;}
  1863.                                 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]);
  1864.                                 check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  1865.                                 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]);
  1866.                             }
  1867.                             add_to_buffer(tmp_buffer);
  1868.                     default: break;
  1869.                 }
  1870.             }
  1871.             reset();
  1872.             break;
  1873.         case BUTTON:
  1874.         /*
  1875.          button x,y,value
  1876.         */
  1877.         break;
  1878.         case INPUTSTYLE:
  1879.         /*
  1880.         @ inputstyle style_description
  1881.         @ example: inputstyle color:blue;font-weight:bold;font-style:italic;font-size:16pt
  1882.         */
  1883.             input_style = get_string(infile,1);
  1884.             break;
  1885.         case INPUT:
  1886.         /*
  1887.          @ input x,y,size,editable,value
  1888.          @ to set inputfield "readonly", use editable = 0
  1889.          @ only active inputfields (editable = 1) will be read with read_canvas();
  1890.          @ may be further controlled by "inputstyle" (inputcss is not yet implemented...)
  1891.          @ if mathml inputfields are present and / or some userdraw is performed, these data will NOT be send as well (javascript:read_canvas();)
  1892.         */
  1893.         if( js_function[DRAW_INPUTS] != 1 ){ js_function[DRAW_INPUTS] = 1;}    
  1894.             for(i = 0 ; i<5;i++){
  1895.                 switch(i){
  1896.                     case 0: int_data[0]=x2px(get_real(infile,0));break;/* x in px */
  1897.                     case 1: int_data[1]=y2px(get_real(infile,0));break;/* y in px */
  1898.                     case 2: int_data[2]=abs( (int)(get_real(infile,0)));break; /* size */
  1899.                     case 3: if( get_real(infile,1) >0){int_data[3] = 1;}else{int_data[3] = 0;};break; /* readonly */
  1900.                     case 4:
  1901.                             temp = get_string_argument(infile,1);
  1902.                             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);
  1903.                             check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  1904.                             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);
  1905.                             add_to_buffer(tmp_buffer);
  1906.                             input_cnt++;break;
  1907.                     default: break;
  1908.                 }
  1909.             }
  1910.             if(reply_format < 1 ){reply_format = 15;}
  1911.             reset();
  1912.             break;
  1913.         case TEXTAREA:
  1914.         /*
  1915.          @ textarea x,y,cols,rows,readonly,value
  1916.          @ may be further controlled by "inputstyle"
  1917.          @ if mathml inputfields are present and / or some userdraw is performed, these data will NOT be send as well (javascript:read_canvas();)
  1918.         */
  1919.             if( js_function[DRAW_TEXTAREAS] != 1 ){ js_function[DRAW_TEXTAREAS] = 1;}  
  1920.             for(i = 0 ; i<6;i++){
  1921.                 switch(i){
  1922.                     case 0: int_data[0]=x2px(get_real(infile,0));break; /* x in px */
  1923.                     case 1: int_data[1]=y2px(get_real(infile,0));break; /* y in px */
  1924.                     case 2: int_data[2]=abs( (int)(get_real(infile,0)));break;/* cols */
  1925.                     case 3: int_data[3]=abs( (int)(get_real(infile,0)));break;/* rows */
  1926.                     case 4: if( get_real(infile,1) >0){int_data[4] = 1;}else{int_data[3] = 0;};break; /* readonly */
  1927.                     case 5: temp = get_string_argument(infile,1);
  1928.                             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);
  1929.                             check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  1930.                             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);
  1931.                             add_to_buffer(tmp_buffer);
  1932.                             input_cnt++;break;
  1933.                     default: break;
  1934.                 }
  1935.             }
  1936.             if(reply_format < 1 ){reply_format = 15;}
  1937.             reset();
  1938.             break;
  1939.         case MOUSE_PRECISION:
  1940.         /*
  1941.             @ precision int
  1942.             @ 10 = 1 decimal ; 100 = 2 decimals etc
  1943.             @ may be used / changed before every object
  1944.         */
  1945.             precision = (int) (get_real(infile,1));
  1946.             break;
  1947.         case ZOOM:
  1948.         /*
  1949.          @ zoom button_color
  1950.          @ introduce a controlpanel at the lower right corner
  1951.          @ 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
  1952.          @ the 'x' symbol will do a 'location.reload' of the page, and thus reset all canvas drawings.
  1953.          @ choose an appropriate colour, so the small 'x,arrows,-,+' are clearly visible
  1954.          @ command 'opacity' may be used to set stroke_opacity of 'buttons
  1955.          @ NOTE: only objects that may be set draggable / clickable will be zoomed / panned
  1956.          @ 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 !!
  1957.         */
  1958.             fprintf(js_include_file,"use_pan_and_zoom = 1;");
  1959.             if( js_function[DRAW_ZOOM_BUTTONS] != 1 ){ js_function[DRAW_ZOOM_BUTTONS] = 1;}
  1960.             /* we use BG_CANVAS (0) */
  1961.             stroke_color = get_color(infile,1);
  1962.             string_length = snprintf(NULL,0," draw_zoom_buttons(%d,\"%s\",%f);",BG_CANVAS,stroke_color,stroke_opacity);
  1963.             check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  1964.             snprintf(tmp_buffer,MAX_BUFFER-1,"draw_zoom_buttons(%d,\"%s\",%f);",BG_CANVAS,stroke_color,stroke_opacity);
  1965.             add_to_buffer(tmp_buffer);
  1966.             done = TRUE;
  1967.             break;
  1968.         case ONCLICK:
  1969.         /*
  1970.          @ onclick
  1971.          @ keyword, no arguments
  1972.          @ if the next object is clicked, it's 'object sequence number' in fly script is returned <br /> by javascript:read_canvas();
  1973.          @ Line based object will show an increase in linewidth<br />Font based objects will show the text in 'bold' when clicked.
  1974.          @ NOTE: not all objects  may be set clickable
  1975.         */
  1976.            
  1977.             onclick = 1;
  1978.             break;
  1979.         case DRAG:
  1980.         /*
  1981.          @ drag [x][y][xy]
  1982.          @ the next object will be draggable in x / y / xy direction
  1983.          @ the displacement can be read by 'javascript:read_dragdrop();'
  1984.          @ 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.
  1985.          @ 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 !!
  1986.         */
  1987.             temp = get_string(infile,1);
  1988.             if(strstr(temp,"xy") != NULL ){
  1989.                 drag_type = 0;
  1990.             }
  1991.             else
  1992.             {
  1993.                 if(strstr(temp,"x") != NULL ){
  1994.                     drag_type = 1;
  1995.                 }
  1996.                 else
  1997.                 {
  1998.                     drag_type = 2;
  1999.                 }
  2000.             }
  2001.             onclick = 2;
  2002.             /* if(use_userdraw == TRUE ){canvas_error("\"drag & drop\" may not be combined with \"userdraw\" or \"pan and zoom\" \n");} */
  2003.             break;
  2004.         case BLINK:
  2005.         /*
  2006.          @ blink time(seconds)
  2007.          @ NOT IMPLEMETED -YET
  2008.         */
  2009.             break;
  2010.         case MOUSE:
  2011.         /*
  2012.          @ mouse color,fontsize
  2013.          @ will display the cursor coordinates  in 'color' and 'font size'<br /> using default fontfamily Ariel
  2014.         */
  2015.             use_mouse_coordinates = TRUE; /* will add & call function "use_mouse_coordinates(){}" in current_canvas /current_context */
  2016.             stroke_color = get_color(infile,0);
  2017.             font_size = (int) (get_real(infile,1));
  2018.             add_js_mouse(js_include_file,MOUSE_CANVAS,canvas_root_id,precision,stroke_color,font_size,stroke_opacity);
  2019.             break;
  2020.         case INTOOLTIP:
  2021.             /*
  2022.             @ intooltip link_text
  2023.             @ link_text is a single line (span-element)
  2024.             @ link_text may also be an image URL http://some_server/images/my_image.png
  2025.             @ link_text may contain HTML markup
  2026.             @ the canvas will be displayed in a tooltip on 'link_text'
  2027.             @ the canvas is default transparent: use command 'bgcolor color' to adjust background-color<br />the link test will alos be shown with this bgcolor.
  2028.             */
  2029.             if(use_input_xy == TRUE){canvas_error("intooltip can not be combined with userinput_xy command");}
  2030.             use_tooltip = TRUE;
  2031.             tooltip_text = get_string(infile,1);
  2032.             if(strstr(tooltip_text,"\"") != 0 ){ tooltip_text = str_replace(tooltip_text,"\"","'"); }
  2033.             break;
  2034.         case AUDIO:
  2035.         /*
  2036.         @ audio x,y,w,h,loop,visible,audiofile location
  2037.         @ x,y : left top corner of audio element (in xrange / yrange)
  2038.         @ w,y : width and height in pixels
  2039.         @ loop : 0 or 1 ( 1 = loop audio fragment)
  2040.         @ visible : 0 or 1 (1 = show controls)
  2041.         @ audio format may be in *.mp3 or *.ogg
  2042.         @ If you are using *.mp3 : be aware that FireFox will not (never) play this ! (Pattented format)
  2043.         @ if you are using *.ogg : be aware that Microsoft based systems not support it natively
  2044.         @ To avoid problems supply both types (mp3 and ogg) of audiofiles.<br />the program will use both as source tag
  2045.         @ 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 />
  2046.         */
  2047.             if( js_function[DRAW_AUDIO] != 1 ){ js_function[DRAW_AUDIO] = 1;}
  2048.             for(i=0;i<7;i++){
  2049.                 switch(i){
  2050.                     case 0: int_data[0] = x2px(get_real(infile,0)); break; /* x in x/y-range coord system -> pixel */
  2051.                     case 1: int_data[1] = y2px(get_real(infile,0)); break; /* y in x/y-range coord system  -> pixel */
  2052.                     case 2: int_data[2] = (int) (get_real(infile,0)); break; /* pixel width */
  2053.                     case 3: int_data[3] = (int) (get_real(infile,0)); break; /* height pixel height */
  2054.                     case 4: int_data[4] = (int) (get_real(infile,0)); if(int_data[4] != TRUE){int_data[4] = FALSE;} break; /* loop boolean */
  2055.                     case 5: int_data[5] = (int) (get_real(infile,0)); if(int_data[5] != TRUE){int_data[5] = FALSE;} break; /* visible boolean */
  2056.                     case 6:
  2057.                     temp = get_string(infile,1);
  2058.                     if( strstr(temp,".mp3") != 0 ){ temp = str_replace(temp,".mp3","");}
  2059.                     if( strstr(temp,".ogg") != 0 ){ temp = str_replace(temp,".ogg","");}
  2060.                     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);
  2061.                     check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  2062.                     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);
  2063.                     add_to_buffer(tmp_buffer);
  2064.                     break;
  2065.                     default:break;
  2066.                 }
  2067.             }
  2068.             reset();
  2069.             break;
  2070.         case VIDEO:
  2071.         /*
  2072.         @ video x,y,w,h,videofile location
  2073.         @ x,y : left top corner of audio element (in xrange / yrange)
  2074.         @ w,y : width and height in pixels
  2075.         @ example:<br />wims getfile : video 0,0,120,120,myvideo.mp4
  2076.         @ video format may be in *.mp4 (todo:other formats)
  2077.         */
  2078.             if( js_function[DRAW_VIDEO] != 1 ){ js_function[DRAW_VIDEO] = 1;}
  2079.             for(i=0;i<5;i++){
  2080.                 switch(i){
  2081.                     case 0: int_data[0] = x2px(get_real(infile,0)); break; /* x in x/y-range coord system -> pixel */
  2082.                     case 1: int_data[1] = y2px(get_real(infile,0)); break; /* y in x/y-range coord system  -> pixel */
  2083.                     case 2: int_data[2] = (int) (get_real(infile,0)); break; /* pixel width */
  2084.                     case 3: int_data[3] = (int) (get_real(infile,0)); break; /* height pixel height */
  2085.                     case 4: temp = get_string(infile,1);
  2086.                             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);
  2087.                             check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  2088.                             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);
  2089.                             add_to_buffer(tmp_buffer);
  2090.                             break;
  2091.                     default:break;
  2092.                 }
  2093.             }
  2094.             reset();
  2095.             break;
  2096.         case HATCHFILL:
  2097.         /*
  2098.         @ hatchfill x0,y0,dx,dy,color
  2099.         @ x0,y0 in xrange / yrange
  2100.         @ distances dx,dy in pixels
  2101.         */
  2102.             if( js_function[DRAW_HATCHFILL] != 1 ){ js_function[DRAW_HATCHFILL] = 1;}
  2103.             for(i=0;i<5;i++){
  2104.                 switch(i){
  2105.                     case 0: int_data[0] = x2px(get_real(infile,0)); break; /* x */
  2106.                     case 1: int_data[1] = y2px(get_real(infile,0)); break; /* y  */
  2107.                     case 2: int_data[2] = (int) (get_real(infile,0)); break; /* dx pixel */
  2108.                     case 3: int_data[3] = (int) (get_real(infile,0)); break; /* dy pixel*/
  2109.                     case 4: stroke_color = get_color(infile,1);
  2110.                     /* draw_hatchfill(ctx,x0,y0,dx,dy,linewidth,color,opacity,xsize,ysize) */
  2111.                     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);
  2112.                     check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  2113.                     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);
  2114.                     add_to_buffer(tmp_buffer);
  2115.                     break;
  2116.                     default:break;
  2117.                 }
  2118.             }
  2119.             reset();
  2120.         break;
  2121.         case DIAMONDFILL:
  2122.         /*
  2123.         @ diamondfill x0,y0,dx,dy,color
  2124.         @ x0,y0 in xrange / yrange
  2125.         @ distances dx,dy in pixels
  2126.         */
  2127.             if( js_function[DRAW_DIAMONDFILL] != 1 ){ js_function[DRAW_DIAMONDFILL] = 1;}
  2128.             for(i=0;i<5;i++){
  2129.                 switch(i){
  2130.                     case 0: int_data[0] = x2px(get_real(infile,0)); break; /* x */
  2131.                     case 1: int_data[1] = y2px(get_real(infile,0)); break; /* y  */
  2132.                     case 2: int_data[2] = (int) (get_real(infile,0)); break; /* dx pixel */
  2133.                     case 3: int_data[3] = (int) (get_real(infile,0)); break; /* dy pixel*/
  2134.                     case 4: stroke_color = get_color(infile,1);
  2135.                     /* draw_hatchfill(ctx,x0,y0,dx,dy,linewidth,color,opacity,xsize,ysize) */
  2136.                     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);
  2137.                     check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  2138.                     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);
  2139.                     add_to_buffer(tmp_buffer);
  2140.                     break;
  2141.                     default:break;
  2142.                 }
  2143.             }
  2144.             reset();
  2145.         break;
  2146.         case GRIDFILL:
  2147.         /*
  2148.         @ gridfill x0,y0,dx,dy,color
  2149.         @ x0,y0 in xrange / yrange
  2150.         @ distances dx,dy in pixels
  2151.         */
  2152.             if( js_function[DRAW_GRIDFILL] != 1 ){ js_function[DRAW_GRIDFILL] = 1;}
  2153.             for(i=0;i<5;i++){
  2154.                 switch(i){
  2155.                     case 0: int_data[0] = x2px(get_real(infile,0)); break; /* x */
  2156.                     case 1: int_data[1] = y2px(get_real(infile,0)); break; /* y  */
  2157.                     case 2: int_data[2] = (int) (get_real(infile,0)); break; /* dx pixel */
  2158.                     case 3: int_data[3] = (int) (get_real(infile,0)); break; /* dy pixel*/
  2159.                     case 4: stroke_color = get_color(infile,1);
  2160.                     /* draw_gridfill(ctx,x0,y0,dx,dy,linewidth,color,opacity,xsize,ysize) */
  2161.                     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);
  2162.                     check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  2163.                     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);
  2164.                     add_to_buffer(tmp_buffer);
  2165.                     break;
  2166.                     default:break;
  2167.                 }
  2168.             }
  2169.             reset();
  2170.         break;
  2171.         case DOTFILL:
  2172.         /*
  2173.         @ dotfill x0,y0,dx,dy,color
  2174.         @ x0,y0 in xrange / yrange
  2175.         @ distances dx,dy in pixels
  2176.         @ radius of dots is linewidth
  2177.         */
  2178.             if( js_function[DRAW_DOTFILL] != 1 ){ js_function[DRAW_DOTFILL] = 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_dotfill(ctx,x0,y0,dx,dy,radius,color,opacity,xsize,ysize) */
  2187.                     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);
  2188.                     check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  2189.                     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);
  2190.                     add_to_buffer(tmp_buffer);
  2191.                     break;
  2192.                     default:break;
  2193.                 }
  2194.             }
  2195.             reset();
  2196.         break;
  2197.         case IMAGEFILL:
  2198.         /*
  2199.         @ imagefill dx,dy,image_url
  2200.         @ The next suitable <b>filled object</b> will be filled with "image_url" tiled
  2201.         @ After pattern filling ,the fill-color should be reset !
  2202.         @ wims getins / image from class directory : imagefill 80,80,my_image.gif
  2203.         @ normal url : imagefill 80,80,$module_dir/gifs/my_image.gif
  2204.         @ normal url : imagefill 80,80,http://adres/a/b/c/my_image.jpg
  2205.         @ if dx,dy is larger than the image, the whole image will be background to the next object.
  2206.         */
  2207.             if( js_function[DRAW_IMAGEFILL] != 1 ){ js_function[DRAW_IMAGEFILL] = 1;}
  2208.             for(i=0 ;i < 3 ; i++){
  2209.                 switch(i){
  2210.                     case 0:int_data[0] = (int) (get_real(infile,0));break;
  2211.                     case 1:int_data[1] = (int) (get_real(infile,0));break;
  2212.                     case 2: URL = get_string_argument(infile,1);
  2213.                             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);
  2214.                             check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  2215.                             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);
  2216.                             add_to_buffer(tmp_buffer);
  2217.                     break;
  2218.                 }
  2219.             }
  2220.         break;
  2221.         case FILLTOBORDER:
  2222.         /*
  2223.         @ filltoborder x,y,bordercolor,color
  2224.         @ fill the region  of point (x:y) bounded by 'bordercolor' with color 'color'
  2225.         @ any other color will not act as border to the bucket fill
  2226.         @ use this command  after all boundary objects are declared.
  2227.         @ 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..
  2228.         */
  2229.             for(i=0 ;i < 4 ; i++){
  2230.                 switch(i){
  2231.                     case 0:double_data[0] = get_real(infile,0);break;
  2232.                     case 1:double_data[1] = get_real(infile,0);break;
  2233.                     case 2:bgcolor = get_color(infile,0);break;
  2234.                     case 3:fill_color = get_color(infile,1);
  2235.                            if(js_function[DRAW_FILLTOBORDER] != 1 ){/* use only once */
  2236.                                 js_function[DRAW_FILLTOBORDER] = 1;
  2237.                                 add_js_filltoborder(js_include_file,canvas_root_id);
  2238.                            }
  2239.                            decimals = find_number_of_digits(precision);
  2240.                            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));
  2241.                            check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  2242.                            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));
  2243.                            add_to_buffer(tmp_buffer);
  2244.                            break;
  2245.                     default:break;
  2246.                     }
  2247.                 }
  2248.         break;
  2249.         case FLOODFILL:
  2250.         /*
  2251.         @ floodfill x,y,color
  2252.         @ alternative syntax: fill x,y,color
  2253.         @ fill the region of point (x:y) with color 'color'
  2254.         @ any other color or size of picture (borders of picture) will act as border to the bucket fill
  2255.         @ use this command  after all boundary objects are declared.
  2256.         @ Use command 'clickfill,color' for user click driven flood fill.
  2257.         @ NOTE: recognised colour boundaries are in the "drag canvas" e.g. only for objects that can be set draggable / clickable
  2258.         @ 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..
  2259.         */
  2260.             for(i=0 ;i < 4 ; i++){
  2261.                 switch(i){
  2262.                     case 0:double_data[0] = get_real(infile,0);break;
  2263.                     case 1:double_data[1] = get_real(infile,0);break;
  2264.                     case 2:fill_color = get_color(infile,1);
  2265.                            if(js_function[DRAW_FLOODFILL] != 1 ){/* use only once */
  2266.                                 js_function[DRAW_FLOODFILL] = 1;
  2267.                                 add_js_floodfill(js_include_file,canvas_root_id);
  2268.                            }
  2269.                            decimals = find_number_of_digits(precision);/*floodfill(interaction,x,y,[R,G,B,A]) */
  2270.                            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));
  2271.                            check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  2272.                            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));
  2273.                            add_to_buffer(tmp_buffer);
  2274.                            break;
  2275.                     default:break;
  2276.                     }
  2277.                 }
  2278.         break;
  2279.         case CLICKFILLMARGE:
  2280.             clickfillmarge = (int) (get_real(infile,1));
  2281.             break;
  2282.         /*
  2283.         @ clickfillmarge int
  2284.         @ default 20 (pixels)
  2285.         @ 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[])
  2286.         */
  2287.         case CLICKFILL:
  2288.         /*
  2289.         @ clickfill fillcolor
  2290.         @ user left mouse click will floodfill the area with fillcolor
  2291.         @ multiple areas may be coloured
  2292.         @ 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)
  2293.         @ the answer will be read as the (x:y) click coordinates per coloured area
  2294.         @ background color of main div may be set by using command "bgcolor color"
  2295.         @ may not be combined with command "userdraw"
  2296.         @ NOTE: recognised colour boundaries are in the "drag canvas" e.g. only for objects that can be set draggable / clickable
  2297.         */
  2298.          fill_color = get_color(infile,1);
  2299.          if(js_function[DRAW_FLOODFILL] != 1 ){/* use only once */
  2300.             js_function[DRAW_FLOODFILL] = 1;
  2301.             add_js_floodfill(js_include_file,canvas_root_id);
  2302.          }
  2303.          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));
  2304.          add_read_canvas(1);
  2305.         break;
  2306.         case SETPIXEL:
  2307.         /*
  2308.         @ setpixel x,y,color
  2309.         @ A "point" with diameter 1 pixel centeres at (x:y) in xrange / yrange
  2310.         @ pixels can not be dragged or clicked
  2311.         @ "pixelsize = 1" may be changed by command "pixelsize int"
  2312.         */
  2313.             if( js_function[DRAW_PIXELS] != 1 ){ js_function[DRAW_PIXELS] = 1;}
  2314.             for(i=0;i<3;i++){
  2315.                 switch(i){
  2316.                     case 0: double_data[0] = get_real(infile,0); break; /* x */
  2317.                     case 1: double_data[1] = get_real(infile,0); break; /* y  */
  2318.                     case 2: stroke_color = get_color(infile,1);
  2319.                            string_length = snprintf(NULL,0,"draw_setpixel([%f],[%f],\"%s\",%.2f,%d);\n",double_data[0],double_data[1],stroke_color,stroke_opacity,pixelsize);
  2320.                            check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  2321.                            snprintf(tmp_buffer,string_length,"draw_setpixel([%f],[%f],\"%s\",%.2f,%d);\n",double_data[0],double_data[1],stroke_color,stroke_opacity,pixelsize);
  2322.                            add_to_buffer(tmp_buffer);
  2323.                            break;
  2324.                     default:break;
  2325.                 }
  2326.             }
  2327.             reset();
  2328.         break;
  2329.         case PIXELSIZE:
  2330.         /*
  2331.         @ pixelsize int
  2332.         @ in case you want to deviate from default pixelsize = 1...
  2333.         */
  2334.             pixelsize = (int) get_real(infile,1);
  2335.         break;
  2336.         case PIXELS:
  2337.         /*
  2338.         @ pixels color,x1,y1,x2,y2,x3,y3...
  2339.         @ Draw  "points" with diameter 1 pixel
  2340.         @ pixels can not be dragged or clicked
  2341.         @ "pixelsize = 1" may be changed by command "pixelsize int"
  2342.         */
  2343.             if( js_function[DRAW_PIXELS] != 1 ){ js_function[DRAW_PIXELS] = 1;}
  2344.             stroke_color=get_color(infile,0);
  2345.             i=0;
  2346.             c=0;
  2347.             while( ! done ){     /* get next item until EOL*/
  2348.                 if(i > MAX_INT - 1){canvas_error("to many points in argument: repeat command multiple times to fit");}
  2349.                 for( c = 0 ; c < 2; c++){
  2350.                     if(c == 0 ){
  2351.                         double_data[i] = get_real(infile,0);
  2352.                         i++;
  2353.                     }
  2354.                     else
  2355.                     {
  2356.                         double_data[i] = get_real(infile,1);
  2357.                         i++;
  2358.                     }
  2359.                 }
  2360.             }
  2361.             decimals = find_number_of_digits(precision);
  2362.             /*  *double_xy2js_array(double xy[],int len,int decimals) */
  2363.             string_length = snprintf(NULL,0,  "draw_setpixel(%s,\"%s\",%.2f,%d);\n",double_xy2js_array(double_data,i,decimals),stroke_color,stroke_opacity,pixelsize);
  2364.             check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  2365.             snprintf(tmp_buffer,string_length,"draw_setpixel(%s,\"%s\",%.2f,%d);\n",double_xy2js_array(double_data,i,decimals),stroke_color,stroke_opacity,pixelsize);
  2366.             add_to_buffer(tmp_buffer);
  2367.             break;
  2368.         case REPLYFORMAT:
  2369.         /*
  2370.         @ replyformat number
  2371.         @ default values should be fine !
  2372.         @ 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>
  2373.         @ note to 'userdraw text,color' : the x / y-values are in pixels ! (this to avoid too lengthy calculations in javascript...)
  2374.         */
  2375.          reply_format = (int) get_real(infile,1);
  2376.         break;
  2377.         case LEGENDCOLORS:
  2378.         /*
  2379.         @ legendcolors color1:color2:color3:...:color_n
  2380.         @ will be used to colour a legend
  2381.         @ make sure the number of colours match the number of legend items
  2382.         @ command 'legend' in case of 'piechart' and 'barchart' will use these colours per default (no need to specify 'legendcolors'
  2383.         */
  2384.             temp = get_string(infile,1);
  2385.             if( strstr( temp,":") != 0 ){ temp = str_replace(temp,":","\",\""); }
  2386.             fprintf(js_include_file,"var legendcolors%d = [\"%s\"];",canvas_root_id,temp);
  2387.             break;
  2388.         case LEGEND:
  2389.         /*
  2390.         @ legend string1:string2:string3....string_n
  2391.         @ will be used to create a legend for a graph
  2392.         @ also see command 'piechart'  
  2393.         */
  2394.             temp = get_string(infile,1);
  2395.             if( strstr( temp,":") != 0 ){ temp = str_replace(temp,":","\",\""); }
  2396.             fprintf(js_include_file,"var legend%d = [\"%s\"];",canvas_root_id,temp);
  2397.             break;
  2398.         case XLABEL:
  2399.         /*
  2400.         @ xlabel some_string
  2401.         @ will be used to create a label for the x-axis (label is in quadrant I)
  2402.         @ can only be used together with command 'grid'<br />not depending on keywords 'axis' and 'axisnumbering'
  2403.         @ font setting: italic Courier, fontsize will be slightly larger (fontsize + 4)
  2404.         */
  2405.             temp = get_string(infile,1);
  2406.             fprintf(js_include_file,"var xaxislabel = \"%s\";",temp);
  2407.             break;
  2408.         case YLABEL:
  2409.         /*
  2410.         @ ylabel some_string
  2411.         @ will be used to create a (vertical) label for the y-axis (label is in quadrant I)
  2412.         @ can only be used together with command 'grid'<br />not depending on keywords 'axis' and 'axisnumbering'
  2413.         @ font setting: italic Courier, fontsize will be slightly larger (fontsize + 4)
  2414.         */
  2415.             temp = get_string(infile,1);
  2416.             fprintf(js_include_file,"var yaxislabel = \"%s\";",temp);
  2417.             break;
  2418.         case LINEGRAPH: /* scheme: var linegraph_0 = [ 'stroke_color','line_width','use_dashed' ,'dashtype0','dashtype1','x1','y1',...,'x_n','y_n'];*/
  2419.         /*
  2420.         @ linegraph x1:y1;x2:y2...x_n:y;2
  2421.         @ will plot your data in a graph
  2422.         @ may only to be used together with command 'grid'
  2423.         @ can be used together with freestyle x-axis/y-axis texts : see commands 'xaxis' and 'yaxis'
  2424.         @ use command 'legend' to provide an optional legend in right-top-corner
  2425.         @ also see command 'piechart'
  2426.         @ multiple linegraphs may be used in a single plot
  2427.         @ <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>
  2428.         */    
  2429.             temp = get_string(infile,1);
  2430.             if( strstr( temp,":") != 0 ){ temp = str_replace(temp,":","\",\""); }
  2431.             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);
  2432.             linegraph_cnt++;
  2433.             reset();
  2434.             break;
  2435.         case CLOCK:
  2436.         /*
  2437.         @ clock x,y,r(px),H,M,S,type hourglass,interactive [ ,H_color,M_color,S_color,background_color,foreground_color ]
  2438.         @ type hourglass:<br />type = 0 : only segments<br />type = 1 : only numbers<br />type = 2 : numbers and segments
  2439.         @ 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
  2440.         @ 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>
  2441.         @ canvasdraw will not check validity of colornames...the javascript console is your best friend
  2442.         @ no combinations with other reply_types allowed, for now
  2443.         @ 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
  2444.         */
  2445.             if( js_function[DRAW_CLOCK] != 1 ){ js_function[DRAW_CLOCK] = 1;}
  2446.  
  2447.         /*    var clock = function(xc,yc,radius,H,M,S,h_color,m_color,s_color,bg_color,fg_color) */
  2448.             for(i=0;i<9;i++){
  2449.              switch(i){
  2450.               case 0: int_data[0] = x2px(get_real(infile,0)); break; /* xc */
  2451.               case 1: int_data[1] = y2px(get_real(infile,0)); break; /* yc */
  2452.               case 2: int_data[2] = get_real(infile,0);break;/* radius in px */
  2453.               case 3: int_data[3] = get_real(infile,0);break;/* hours */
  2454.               case 4: int_data[4] = get_real(infile,0);break;/* minutes */
  2455.               case 5: int_data[5] = get_real(infile,0);break;/* seconds */
  2456.               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 */
  2457.               case 7: int_data[7] = (int)(get_real(infile,0));/* interactive 0,1,2*/
  2458.                 switch(int_data[7]){
  2459.                     case 0:break;
  2460.                     case 1:if(clock_cnt == 0){
  2461.                                 if( reply_format == 0 ){
  2462.                                      reply_format = 18; /* user sets clock */
  2463.                                     /* 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");
  2464.                                      check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  2465.                                      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");
  2466.                                      add_to_buffer(tmp_buffer);
  2467.                                     */
  2468.                                      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");
  2469.                                 }
  2470.                                 else
  2471.                                 {
  2472.                                     canvas_error("interactive clock may not be used together with other reply_types...");
  2473.                                 }
  2474.                                 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);
  2475.                              }
  2476.                     break;
  2477.                     case 2:if( reply_format == 0 ){
  2478.                                 reply_format = 19; /* "onclick */
  2479.                                 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 ");
  2480.                             }
  2481.                             else
  2482.                             {
  2483.                                 if( reply_format != 19){
  2484.                                    canvas_error("clickable clock(s) may not be used together with other reply_types...");
  2485.                                  }
  2486.                             }
  2487.                      break;
  2488.                      default: canvas_error("interactive must be set 0,1 or 2");break;
  2489.                 }
  2490.                 break;
  2491.                 case 8:
  2492.                         temp = get_string(infile,1);
  2493.                         if( strstr( temp,",") != 0 ){ temp = str_replace(temp,",","\",\""); }
  2494.                         if( strlen(temp) < 1 ){temp = ",\"\",\"\",\"\",\"\",\"\"";}
  2495.                         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);
  2496.                         check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  2497.                         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);
  2498.                         add_to_buffer(tmp_buffer);
  2499.                         clock_cnt++;
  2500.                         break;
  2501.                 default:break;
  2502.              }
  2503.             }
  2504.             break;
  2505.         case BARCHART:
  2506.         /*
  2507.         @ barchart x_1:y_1:color_1:x_2:y_2:color_2:...x_n:y_n:color_n
  2508.         @ will be used to create a legend for bar graph
  2509.         @ may only to be used together with command 'grid'
  2510.         @ can be used together with freestyle x-axis/y-axis texts : see commands 'xaxis' and 'yaxis'
  2511.         @ use command 'legend' to provide an optional legend in right-top-corner
  2512.         @ also see command 'piechart'  
  2513.         */
  2514.             temp = get_string(infile,1);
  2515.             if( strstr( temp,":" ) != 0 ){ temp = str_replace(temp,":","\",\""); }
  2516.             fprintf(js_include_file,"var barchart%d = [\"%s\"];",canvas_root_id,temp);
  2517.             reset();
  2518.             break;
  2519.         case PIECHART:
  2520.         /*
  2521.         @ piechart xc,yc,radius,'data+colorlist'
  2522.         @ (xc : yc) center of circle diagram in xrange/yrange
  2523.         @ radius in pixels
  2524.         @ 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
  2525.         @ example data+colorlist : 132:red:23565:green:323:black:234324:orange:23434:yellow:2543:white
  2526.         @ the number of colors must match the number of data.
  2527.         @ use command "opacity 0-255,0-255" to adjust fill_opacity of colours
  2528.         @ 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...
  2529.         */
  2530.             if( js_function[DRAW_PIECHART] != 1 ){ js_function[DRAW_PIECHART] = 1;}    
  2531.             for(i=0;i<5;i++){
  2532.                 switch(i){
  2533.                     case 0: int_data[0] = x2px(get_real(infile,0)); break; /* x */
  2534.                     case 1: int_data[1] = y2px(get_real(infile,0)); break; /* y  */
  2535.                     case 2: int_data[2] = (int)(get_real(infile,1));break;/* radius*/
  2536.                     case 3: temp = get_string(infile,1);
  2537.                             if( strstr( temp, ":" ) != 0 ){ temp = str_replace(temp,":","\",\"");}
  2538.                             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);
  2539.                             check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
  2540.                             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);
  2541.                             add_to_buffer(tmp_buffer);
  2542.                            break;
  2543.                     default:break;
  2544.                 }
  2545.             }
  2546.             reset();
  2547.         break;
  2548.         case STATUS:
  2549.             fprintf(js_include_file,"\nstatus=\"waiting\";\n");
  2550.             break;
  2551.         case XLOGBASE:
  2552.         /*
  2553.         @ xlogbase number
  2554.         @ sets the logbase number for the x-axis
  2555.         @ default value 10
  2556.         @ use together with commands xlogscale / xylogscale
  2557.         */
  2558.             fprintf(js_include_file,"xlogbase=%d;",(int)(get_real(infile,1)));
  2559.             break;
  2560.         case YLOGBASE:
  2561.         /*
  2562.         @ ylogbase number
  2563.         @ sets the logbase number for the y-axis
  2564.         @ default value 10
  2565.         @ use together with commands ylogscale / xylogscale
  2566.         */
  2567.             fprintf(js_include_file,"ylogbase=%d;",(int)(get_real(infile,1)));
  2568.             break;
  2569.         case XLOGSCALE:
  2570.         /*
  2571.          @ xlogscale ymajor,yminor,majorcolor,minorcolor
  2572.          @ the x/y-range are set using commands 'xrange xmin,xmax' and 'yrange ymin,ymax'
  2573.          @ ymajor is the major step on the y-axis; yminor is the divisor for the y-step
  2574.          @ the linewidth is set using command 'linewidth int'
  2575.          @ the opacity of major / minor grid lines is set by command 'opacity [0-255],[0-255]'
  2576.          @ default logbase number = 10 ... when needed , set the logbase number with command 'xlogbase number'
  2577.          @ 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>
  2578.          @ note: the complete canvas will be used for the 'log paper'
  2579.          @ note: userdrawings are done in the log paper, e.g. javascript:read_canvas() will return the real values
  2580.          @ note: command 'mouse color,fontsize' will show the real values in the logpaper.<br />\
  2581.          @ 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')  
  2582.          @ note: in case of userdraw , the use of keyword 'userinput_xy' may be handy !
  2583.          @ attention: keyword 'snaptogrid' may not lead to the desired result...
  2584.         */
  2585.             if( js_function[DRAW_GRID] == 1 ){canvas_error("only one type of grid is allowed...");}
  2586.             if( js_function[DRAW_XLOGSCALE] != 1 ){ js_function[DRAW_XLOGSCALE] = 1;}
  2587.             for(i=0;i<4;i++){
  2588.                 switch(i){
  2589.                     case 0: double_data[0] = get_real(infile,0);break; /* xmajor */
  2590.                     case 1: int_data[0] = (int) (get_real(infile,0));break; /* xminor */
  2591.                     case 2: stroke_color = get_color(infile,0); break;
  2592.                     case 3: fill_color = get_color(infile,1);
  2593.                         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);
  2594.                         tmp_buffer = my_newmem(string_length+1);
  2595.                         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);
  2596.                         fprintf(js_include_file,"use_xlogscale=1;snap_y = %f;snap_x = xlogbase;",double_data[0]/int_data[0]);
  2597.                         add_to_buffer(tmp_buffer);
  2598.                         break;
  2599.                     default:break;
  2600.                 }
  2601.             }
  2602.             break;
  2603.         case YLOGSCALE:
  2604.         /*
  2605.          @ ylogscale xmajor,xminor,majorcolor,minorcolor
  2606.          @ the x/y-range are set using commands 'xrange xmin,xmax' and 'yrange ymin,ymax'
  2607.          @ xmajor is the major step on the x-axis; xminor is the divisor for the x-step
  2608.          @ the linewidth is set using command 'linewidth int'
  2609.          @ the opacity of major / minor grid lines is set by command 'opacity [0-255],[0-255]'
  2610.          @ default logbase number = 10 ... when needed , set the logbase number with command 'ylogbase number'
  2611.          @ 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>
  2612.          @ note: the complete canvas will be used for the 'log paper'
  2613.          @ note: userdrawings are done in the log paper, e.g. javascript:read_canvas() will return the real values
  2614.          @ note: command 'mouse color,fontsize' will show the real values in the logpaper.<br />\
  2615.          @ 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')  
  2616.          @ note: in case of userdraw , the use of keyword 'userinput_xy' may be handy !
  2617.          @ attention: keyword 'snaptogrid' may not lead to the desired result...
  2618.         */
  2619.             if( js_function[DRAW_GRID] == 1 ){canvas_error("only one type of grid is allowed...");}
  2620.             if( js_function[DRAW_YLOGSCALE] != 1 ){ js_function[DRAW_YLOGSCALE] = 1;}
  2621.             for(i=0;i<4;i++){
  2622.                 switch(i){
  2623.                     case 0: double_data[0] = get_real(infile,0);break; /* xmajor */
  2624.                     case 1: int_data[0] = (int) (get_real(infile,0));break; /* xminor */
  2625.                     case 2: stroke_color = get_color(infile,0); break;
  2626.                     case 3: fill_color = get_color(infile,1);
  2627.                         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);
  2628.                         tmp_buffer = my_newmem(string_length+1);
  2629.                         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);
  2630.                         fprintf(js_include_file,"use_ylogscale=1;snap_x = %f;snap_y = ylogbase;",double_data[0]/int_data[0]);
  2631.                         add_to_buffer(tmp_buffer);
  2632.                         break;
  2633.                     default:break;
  2634.                 }
  2635.             }
  2636.             break;
  2637.         case XYLOGSCALE:
  2638.         /*
  2639.          @ xylogscale majorcolor,minorcolor
  2640.          @ the x/y-range are set using commands 'xrange xmin,xmax' and 'yrange ymin,ymax'
  2641.          @ the linewidth is set using command 'linewidth int'
  2642.          @ the opacity of major / minor grid lines is set by command 'opacity [0-255],[0-255]'
  2643.          @ default logbase number = 10 ... when needed , set the logbase number with command 'xlogbase number' and/or 'ylogbase number'
  2644.          @ 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>
  2645.          @ note: the complete canvas will be used for the 'log paper'
  2646.          @ note: userdrawings are done in the log paper, e.g. javascript:read_canvas() will return the real values
  2647.          @ note: command 'mouse color,fontsize' will show the real values in the logpaper.<br />\
  2648.          @ 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')  
  2649.          @ note: in case of userdraw , the use of keyword 'userinput_xy' may be handy !
  2650.          @ attention: keyword 'snaptogrid' may not lead to the desired result...
  2651.         */
  2652.             if( js_function[DRAW_GRID] == 1 ){canvas_error("only one type of grid is allowed...");}
  2653.             if( js_function[DRAW_XYLOGSCALE] != 1 ){ js_function[DRAW_XYLOGSCALE] = 1;}
  2654.             for(i=0;i<2;i++){
  2655.                 switch(i){
  2656.                     case 0: stroke_color = get_color(infile,0); break;
  2657.                     case 1: fill_color = get_color(infile,1);
  2658.                         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);
  2659.                         tmp_buffer = my_newmem(string_length+1);
  2660.                         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);
  2661.                         fprintf(js_include_file,"use_xlogscale=1;use_ylogscale=1;snap_x = xlogbase;snap_y = ylogbase;");
  2662.                         add_to_buffer(tmp_buffer);
  2663.                         break;
  2664.                     default:break;
  2665.                 }
  2666.             }
  2667.         break;
  2668.         default:sync_input(infile);
  2669.         break;
  2670.     }
  2671.   }
  2672.   /* we are done parsing script file */
  2673.  
  2674.   /* if needed, add generic draw functions (grid / xml etc) to buffer : these are no draggable shapes / objects  ! */
  2675.   add_javascript_functions(js_function,canvas_root_id);
  2676.    /* add read_canvas() etc functions if needed */
  2677.   if( reply_format > 0 ){ add_read_canvas(reply_format);}
  2678.   /* using mouse coordinate display ? */
  2679.   if( use_mouse_coordinates == TRUE ){
  2680.     tmp_buffer = my_newmem(26);
  2681.     snprintf(tmp_buffer,25,"use_mouse_coordinates();\n");add_to_buffer(tmp_buffer);
  2682.   }
  2683.   /* add global variables / contants */
  2684.   fprintf(js_include_file,"\n<!-- some extra global stuff : need to rethink panning and zooming !!! -->\n\
  2685.  var precision = %d;var xmin=%f;var xmax=%f;var ymin=%f;\
  2686.  var ymax=%f;var xmin_start=xmin;var xmax_start=xmax;\
  2687.  var ymin_start=ymin;var ymax_start=xmax;\
  2688.  var zoom_x_increment=0;var zoom_y_increment=0;\
  2689.  var pan_x_increment=0;var pan_y_increment=0;\
  2690.  if(use_ylogscale == 0 ){\
  2691.   zoom_x_increment = (xmax - xmin)/20;zoom_y_increment = (xmax - xmin)/20;pan_x_increment = (xmax - xmin)/20;pan_y_increment = (ymax - ymin)/20;\
  2692.  }else{\
  2693.   zoom_x_increment = (xmax - xmin)/20;\
  2694.   pan_x_increment = (xmax - xmin)/20;\
  2695.  };\
  2696.  function start_canvas%d(type){\
  2697.   switch(type){\
  2698.    case 0:xmin = xmin + zoom_x_increment;ymin = ymin + zoom_y_increment;xmax = xmax - zoom_x_increment;ymax = ymax - zoom_y_increment;break;\
  2699.    case 1:xmin = xmin - zoom_x_increment;ymin = ymin - zoom_y_increment;xmax = xmax + zoom_x_increment;ymax = ymax + zoom_y_increment;break;\
  2700.    case 2:xmin = xmin - pan_x_increment;ymin = ymin ;xmax = xmax - pan_x_increment;ymax = ymax;break;\
  2701.    case 3:xmin = xmin + pan_x_increment;ymin = ymin ;xmax = xmax + pan_x_increment;ymax = ymax;break;\
  2702.    case 4:xmin = xmin;ymin = ymin - pan_y_increment ;xmax = xmax;ymax = ymax - pan_y_increment;break;\
  2703.    case 5:xmin = xmin;ymin = ymin + pan_y_increment ;xmax = xmax;ymax = ymax + pan_y_increment;break;\
  2704.    case 6:location.reload();break;\
  2705.    default:break;\
  2706.   };\
  2707.   if(xmax<=xmin){xmin=xmin_start;xmax=xmax_start;};\
  2708.   if(ymax<=ymin){ymin=ymin_start;ymax=ymax_start;};\
  2709.   try{dragstuff.Zoom(xmin,xmax,ymin,ymax);}catch(e){}\
  2710.   %s\
  2711.  };\
  2712.  start_canvas%d(22);\
  2713. };\n\
  2714. <!-- end wims_canvas_function -->\n\
  2715. wims_canvas_function%d();\n",precision,xmin,xmax,ymin,ymax,canvas_root_id,buffer,canvas_root_id,canvas_root_id);
  2716. /* done writing the javascript include file */
  2717. fclose(js_include_file);
  2718.  
  2719. }
  2720.  
  2721. /* if using a tooltip, this should always be printed to the *.phtml file, so stdout */
  2722. if(use_tooltip == TRUE){
  2723.   add_js_tooltip(canvas_root_id,tooltip_text,bgcolor,xsize,ysize);
  2724. }
  2725. exit(EXIT_SUCCESS);
  2726. }
  2727. /* end main() */
  2728.  
  2729. /******************************************************************************
  2730. **
  2731. **  sync_input
  2732. **
  2733. **  synchronises input line - reads to end of line, leaving file pointer
  2734. **  at first character of next line.
  2735. **
  2736. **  Used by:
  2737. **  main program - error handling.
  2738. **
  2739. ******************************************************************************/
  2740. void sync_input(FILE *infile)
  2741. {
  2742.         int c = 0;
  2743.  
  2744.         if( c == '\n' || c == ';' ) return;
  2745.         while( ( (c=getc(infile)) != EOF ) && (c != '\n') && (c != '\r') && (c != ';')) ;
  2746.         if( c == EOF ) finished = 1;
  2747.         if( c == '\n' || c == '\r' || c == ';') line_number++;
  2748.         return;
  2749. }
  2750.  
  2751. /******************************************************************************/
  2752.  
  2753. char *str_replace(const char *str, const char *old, const char *new){
  2754. /* http://creativeandcritical.net/str-replace-c/ */
  2755.     if(strlen(str) > MAX_BUFFER){canvas_error("string argument too big");}
  2756.     char *ret, *r;
  2757.     const char *p, *q;
  2758.     size_t oldlen = strlen(old);
  2759.     size_t count = 0;
  2760.     size_t retlen = 0;
  2761.     size_t newlen = strlen(new);
  2762.     if (oldlen != newlen){
  2763.         for (count = 0, p = str; (q = strstr(p, old)) != NULL; p = q + oldlen){
  2764.             count++;
  2765.             retlen = p - str + strlen(p) + count * (newlen - oldlen);
  2766.         }
  2767.     }
  2768.     else
  2769.     {
  2770.         retlen = strlen(str);
  2771.     }
  2772.    
  2773.     if ((ret = malloc(retlen + 1)) == NULL){
  2774.         ret = NULL;
  2775.         canvas_error("string argument is NULL");
  2776.     }
  2777.     else
  2778.     {
  2779.         for (r = ret, p = str; (q = strstr(p, old)) != NULL; p = q + oldlen) {
  2780.             size_t l = q - p;
  2781.             memcpy(r, p, l);
  2782.             r += l;
  2783.             memcpy(r, new, newlen);
  2784.             r += newlen;
  2785.         }
  2786.         strcpy(r, p);
  2787.     }
  2788.     return ret;
  2789. }
  2790.  
  2791. /******************************************************************************/
  2792. /*
  2793. avoid the use of ctypes.h for tolower() toupper();
  2794. it gives trouble in FreeBSD 9.0 / 9.1 when used in a chroot environment (C library bug) : Undefined symbol "_ThreadRuneLocale"
  2795. Upper case -> Lower case : c = c - 'A'+ 'a';
  2796. Lower case ->  Upper case  c = c + 'A'  - 'a';
  2797. */
  2798. int tolower(int c){
  2799.  if(c <= 'Z'){
  2800.   if (c >= 'A'){
  2801.    return c - 'A' + 'a';
  2802.   }
  2803.  }
  2804.  return c;
  2805. }
  2806.  
  2807. int toupper(int c){
  2808.  if(c >= 'a' && c <= 'z'){
  2809.    return c + 'A' - 'a';
  2810.  }
  2811.  return c;
  2812. }
  2813.  
  2814. char *get_color(FILE *infile , int last){
  2815.     int c,i = 0,is_hex = 0;
  2816.     char temp[MAX_COLOR_STRING], *string;
  2817.     while(( (c=getc(infile)) != EOF ) && ( c != '\n') && ( c != ',' ) && ( c != ';' ) ){
  2818.         if( i > MAX_COLOR_STRING ){ canvas_error("colour string is too big ... ? ");}
  2819.         if( c == '#' ){
  2820.             is_hex = 1;
  2821.         }
  2822.         if( c != ' '){
  2823.             temp[i]=tolower(c);
  2824.             i++;
  2825.         }
  2826.     }
  2827.     if( ( c == '\n' || c == EOF || c == ';' ) && last == 0){canvas_error("expecting more arguments in command");}
  2828.     if( c == '\n' || c == ';' ){ done = TRUE; line_number++; }
  2829.     if( c == EOF ){finished = 1;}
  2830.     if( finished == 1 && last != 1 ){ canvas_error("expected more arguments");}
  2831.     temp[i]='\0';
  2832.     if( strlen(temp) == 0 ){ canvas_error("expected a colorname or hexnumber, but found nothing !!");}
  2833.     if( is_hex == 1 ){
  2834.         char red[3], green[3], blue[3];
  2835.         red[0]   = toupper(temp[1]); red[1]   = toupper(temp[2]); red[2]   = '\0';
  2836.         green[0] = toupper(temp[3]); green[1] = toupper(temp[4]); green[2] = '\0';
  2837.         blue[0]  = toupper(temp[5]); blue[1]  = toupper(temp[6]); blue[2]  = '\0';
  2838.         int r = (int) strtol(red,   NULL, 16);
  2839.         int g = (int) strtol(green, NULL, 16);
  2840.         int b = (int) strtol(blue,  NULL, 16);
  2841.         string = (char *)my_newmem(12);
  2842.         snprintf(string,11,"%d,%d,%d",r,g,b);
  2843.         return string;
  2844.     }
  2845.     else
  2846.     {
  2847.         string = (char *)my_newmem(sizeof(temp));
  2848.         snprintf(string,sizeof(temp),"%s",temp);
  2849.         for( i = 0; i <= NUMBER_OF_COLORNAMES ; i++ ){
  2850.             if( strcmp( colors[i].name , string ) == 0 ){
  2851.                 return colors[i].rgb;
  2852.             }
  2853.         }
  2854.     }
  2855.     /* not found...return error */
  2856.     free(string);string = NULL;
  2857.     canvas_error("I was expecting a color name or hexnumber...but found nothing.");
  2858.     return NULL;
  2859. }
  2860.  
  2861. char *get_string(FILE *infile,int last){ /* last = 0 : more arguments ; last=1 final argument */
  2862.     int c,i=0;
  2863.     char  temp[MAX_BUFFER], *string;
  2864.     while(( (c=getc(infile)) != EOF ) && ( c != '\n') ){
  2865.         temp[i]=c;
  2866.         i++;
  2867.         if(i > MAX_BUFFER){ canvas_error("string size too big...repeat command to fit string");break;}
  2868.     }
  2869.     if( ( c == '\n' || c == EOF ) && last == 0){canvas_error("expecting more arguments in command");}
  2870.     if( c == '\n') { done = TRUE; line_number++; }
  2871.     if( c == EOF ) {
  2872.         finished = 1;
  2873.         if( last != 1 ){ canvas_error("expected more arguments");}
  2874.     }
  2875.     temp[i]='\0';
  2876.     if( strlen(temp) == 0 ){ canvas_error("expected a word or string, but found nothing !!");}
  2877.     string=(char *)my_newmem(strlen(temp));
  2878.     snprintf(string,sizeof(temp),"%s",temp);
  2879.     return string;
  2880. }
  2881.  
  2882. char *get_string_argument(FILE *infile,int last){  /* last = 0 : more arguments ; last=1 final argument */
  2883.     int c,i=0;
  2884.     char temp[MAX_BUFFER], *string;
  2885.     while(( (c=getc(infile)) != EOF ) && ( c != '\n') && ( c != ',')){
  2886.         temp[i]=c;
  2887.         i++;
  2888.         if(i > MAX_BUFFER){ canvas_error("string size too big...will cut it off");break;}
  2889.     }
  2890.     if( ( c == '\n' || c == EOF) && last == 0){canvas_error("expecting more arguments in command");}
  2891.     if( c == '\n') { line_number++; }
  2892.     if( c == EOF ) {finished = 1;}
  2893.     if( finished == 1 && last != 1 ){ canvas_error("expected more arguments");}
  2894.     temp[i]='\0';
  2895.     if( strlen(temp) == 0 ){ canvas_error("expected a word or string (without comma) , but found nothing !!");}
  2896.     string=(char *)my_newmem(sizeof(temp));
  2897.     snprintf(string,sizeof(temp),"%s",temp);
  2898.     done = TRUE;
  2899.     return string;
  2900. }
  2901.  
  2902. double get_real(FILE *infile, int last){ /* accept anything that looks like an number ?  last = 0 : more arguments ; last=1 final argument */
  2903.     int c,i=0,found_calc = 0;
  2904.     double y;
  2905.     char tmp[MAX_INT];
  2906.     while(( (c=getc(infile)) != EOF ) && ( c != ',') && (c != '\n') && ( c != ';')){
  2907.      if( c != ' ' ){
  2908.      /*
  2909.      libmatheval will segfault when for example: "xrange -10,+10" or "xrange -10,10+" is used
  2910.      We will check after assert() if it's a NULL pointer...and exit program via :
  2911.      canvas_error("I'm having trouble parsing your \"expression\" ");
  2912.      */
  2913.       if( i == 0 &&  c == '+' ){
  2914.        continue;
  2915.       }
  2916.       else
  2917.       {
  2918.        if(canvas_iscalculation(c) != 0){
  2919.         found_calc = 1;
  2920.         c = tolower(c);
  2921.        }
  2922.        tmp[i] = c;
  2923.        i++;
  2924.       }
  2925.      }
  2926.      if( i > MAX_INT - 1){canvas_error("number too large");}
  2927.     }
  2928.     if( ( c == '\n' || c == EOF || c == ';' ) && last == 0){canvas_error("expecting more arguments in command");}
  2929.     if( c == '\n' || c == ';' ){ done = TRUE; line_number++; }
  2930.     if( c == EOF ){done = TRUE ; finished = 1;}
  2931.     tmp[i]='\0';
  2932.     if( strlen(tmp) == 0 ){canvas_error("expected a number , but found nothing !!");}
  2933.     if( found_calc == 1 ){ /* use libmatheval to calculate 2*pi/3 */
  2934.      void *f = evaluator_create(tmp);
  2935.      assert(f);if( f == NULL ){canvas_error("I'm having trouble parsing your \"expression\" ") ;}
  2936.      y = evaluator_evaluate_x(f, 1);
  2937.      /* if function is bogus; y = 1 : so no core dumps */
  2938.      evaluator_destroy(f);
  2939.     }
  2940.     else
  2941.     {
  2942.      y = atof(tmp);
  2943.     }
  2944.     return y;
  2945. }
  2946. void canvas_error(char *msg){
  2947.     fprintf(stdout,"\n</script><hr /><span style=\"color:red\">FATAL syntax error:line %d : %s</span><hr />",line_number-1,msg);
  2948.     finished = 1;
  2949.     exit(EXIT_SUCCESS);
  2950. }
  2951.  
  2952.  
  2953. /* convert x/y coordinates to pixel */
  2954. int x2px(double x){
  2955.  return x*xsize/(xmax - xmin) -  xsize*xmin/(xmax - xmin);
  2956. }
  2957.  
  2958. int y2px(double y){
  2959.  return -1*y*ysize/(ymax - ymin) + ymax*ysize/(ymax - ymin);
  2960. }
  2961.  
  2962. double px2x(int x){
  2963.  return (x*(xmax - xmin)/xsize + xmin);
  2964. }
  2965. double px2y(int y){
  2966.  return (y*(ymax - ymin)/ysize + ymin);
  2967. }
  2968.  
  2969. void add_to_buffer(char *tmp){
  2970.  if( tmp == NULL || tmp == 0 ){ canvas_error("nothing to add_to_buffer()...");}
  2971.  /*  do we have enough space left in buffer[MAX_BUFFER] ? */
  2972.  int space_left = (int) (sizeof(buffer) - strlen(buffer));
  2973.  if( space_left > strlen(tmp)){
  2974.   strncat(buffer,tmp,space_left - 1);/* add safely "tmp" to the string buffer */
  2975.  }
  2976.  else
  2977.  {
  2978.   canvas_error("buffer is too big\n");
  2979.  }
  2980.  tmp = NULL;free(tmp);
  2981.  return;
  2982. }
  2983.  
  2984. void reset(){
  2985.  if(use_filled == TRUE){use_filled = FALSE;}
  2986.  if(use_dashed == TRUE){use_dashed = FALSE;}
  2987.  if(use_translate == TRUE){use_translate = FALSE;}
  2988.  if(use_rotate == TRUE){use_rotate = FALSE;}
  2989.  onclick = 0;
  2990. }
  2991.  
  2992.  
  2993.  
  2994. /* What reply format in read_canvas();
  2995.  
  2996. note:if userdraw is combined with inputfields...every "userdraw" based answer will append "\n" and  inputfield.value()
  2997. 1 = x1,x2,x3,x4....x_n
  2998.     y1,y2,y3,y4....y_n
  2999.  
  3000.     x/y in pixels
  3001.  
  3002. 2 = x1,x2,x3,x4....x_n
  3003.     y1,y2,y3,y4....y_n
  3004.     x/y in  xrange / yrange coordinate system
  3005.  
  3006. 3 = x1,x2,x3,x4....x_n
  3007.     y1,y2,y3,y4....y_n
  3008.     r1,r2,r3,r4....r_n
  3009.  
  3010.     x/y in pixels
  3011.     r in pixels
  3012.  
  3013. 4 = x1,x2,x3,x4....x_n
  3014.     y1,y2,y3,y4....y_n
  3015.     r1,r2,r3,r4....r_n
  3016.  
  3017.     x/y in  xrange / yrange coordinate system
  3018.     r in pixels
  3019.  
  3020. 5 = Ax1,Ax2,Ax3,Ax4....Ax_n
  3021.     Ay1,Ay2,Ay3,Ay4....Ay_n
  3022.     Bx1,Bx2,Bx3,Bx4....Bx_n
  3023.     By1,By2,By3,By4....By_n
  3024.     Cx1,Cx2,Cx3,Cx4....Cx_n
  3025.     Cy1,Cy2,Cy3,Cy4....Cy_n
  3026.     ....
  3027.     Zx1,Zx2,Zx3,Zx4....Zx_n
  3028.     Zy1,Zy2,Zy3,Zy4....Zy_n
  3029.    
  3030.     x/y in pixels
  3031.  
  3032. 6 = Ax1,Ax2,Ax3,Ax4....Ax_n
  3033.     Ay1,Ay2,Ay3,Ay4....Ay_n
  3034.     Bx1,Bx2,Bx3,Bx4....Bx_n
  3035.     By1,By2,By3,By4....By_n
  3036.     Cx1,Cx2,Cx3,Cx4....Cx_n
  3037.     Cy1,Cy2,Cy3,Cy4....Cy_n
  3038.     ....
  3039.     Zx1,Zx2,Zx3,Zx4....Zx_n
  3040.     Zy1,Zy2,Zy3,Zy4....Zy_n
  3041.  
  3042.     x/y in  xrange / yrange coordinate system
  3043.    
  3044. 7 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n
  3045.    
  3046.     x/y in pixels
  3047.  
  3048. 8 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n
  3049.    
  3050.     x/y in  xrange / yrange coordinate system
  3051.  
  3052. 9 = x1:y1:r1,x2:y2:r2,x3:y3:r3,x4:y4:r3...x_n:y_n:r_n    
  3053.  
  3054.     x/y in pixels
  3055.  
  3056. 10 = x1:y1:r1,x2:y2:r2,x3:y3:r3,x4:y4:r3...x_n:y_n:r_n    
  3057.  
  3058.     x/y in  xrange / yrange coordinate system
  3059.  
  3060. 11 = Ax1,Ay1,Ax2,Ay2
  3061.      Bx1,By1,Bx2,By2
  3062.      Cx1,Cy1,Cx2,Cy2
  3063.      Dx1,Dy1,Dx2,Dy2
  3064.      ......
  3065.      Zx1,Zy1,Zx2,Zy2
  3066.      
  3067.     x/y in  xrange / yrange coordinate system
  3068.  
  3069. 12 = Ax1,Ay1,Ax2,Ay2
  3070.      Bx1,By1,Bx2,By2
  3071.      Cx1,Cy1,Cx2,Cy2
  3072.      Dx1,Dy1,Dx2,Dy2
  3073.      ......
  3074.      Zx1,Zy1,Zx2,Zy2
  3075.      
  3076.     x/y in pixels
  3077.  
  3078. 13 = Ax1:Ay1:Ax2:Ay2,Bx1:By1:Bx2:By2,Cx1:Cy1:Cx2:Cy2,Dx1:Dy1:Dx2:Dy2, ... ,Zx1:Zy1:Zx2:Zy2
  3079.  
  3080.     x/y in  xrange / yrange coordinate system
  3081. 14 = Ax1:Ay1:Ax2:Ay2,Bx1:By1:Bx2:By2....Zx1:Zy1:Zx2:Zy2
  3082.     x/y in pixels
  3083. 15 = reply from inputfields,textareas
  3084.     reply1,reply2,reply3,...,reply_n
  3085.  
  3086. 16 = read mathml inputfields only
  3087.  
  3088. 17 = read userdraw text only (x1:y1:text1,x2:y2:text2...x_n:y_n:text_n
  3089.  when ready : calculate size_t of string via snprintf(NULL,0,"blah blah...");
  3090.  
  3091. 18 = read clock(s) : H1:M1:S1,H2:M2:S2,...H_n:M_n:S_n
  3092. 19 = return clicked object number (analogue to shape-library onclick)
  3093. 20 = return x/y-data in x-range/y-range of all 'draggable' images
  3094. 21 = return verbatim coordinates (x1:y1) (x2:y2)...(x_n:y_n)
  3095. 22 = array : x1,y1,x2,y2,x3,y3,x4,y4...x_n,y_n
  3096.     x/y in  xrange / yrange coordinate system
  3097. 23 = answertype for a polyline : remove multiple occurences  due to reclick on a point to create next polyline segment
  3098. */
  3099.  
  3100.  
  3101. void add_read_canvas(int type_reply){
  3102. /* just 1 reply type allowed */
  3103. switch(type_reply){
  3104. /*  TO DO
  3105. !!!!  NEED TO SIMPLIFY !!!!  
  3106. answers may have:
  3107. x-values,y-values,r-values,input-fields,mathml-inputfields,text-typed answers
  3108. */
  3109.     case 1: fprintf(js_include_file,"\
  3110. \n<!-- begin function 1 read_canvas() -->\n\
  3111. function read_canvas(){\
  3112. if( userdraw_x.length == 0){alert(\"nothing drawn...\");return;}\
  3113. if( document.getElementById(\"canvas_input0\") || document.getElementById(\"mathml0\") ){\
  3114.  var p = 0;var input_reply = new Array();\
  3115.  if( document.getElementById(\"canvas_input0\")){\
  3116.   var t = 0;\
  3117.   while(document.getElementById(\"canvas_input\"+t)){\
  3118.    if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
  3119.     input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
  3120.     p++;\
  3121.    };\
  3122.    t++;\
  3123.   };\
  3124.  };\
  3125.  if( typeof userdraw_text != 'undefined' ){\
  3126.   return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+input_reply + \"\\n\"+userdraw_text;\
  3127.  }\
  3128.  else\
  3129.  {\
  3130.   return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+input_reply;\
  3131.  }\
  3132. }\
  3133. else\
  3134. {\
  3135.  if( typeof userdraw_text != 'undefined' ){\
  3136.   return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+userdraw_text;\
  3137.  }\
  3138.  else\
  3139.  {\
  3140.   return userdraw_x+\"\\n\"+userdraw_y;\
  3141.  }\
  3142. };\
  3143. };\
  3144. this.read_canvas = read_canvas;\n\
  3145. <!-- end function 1 read_canvas() -->");
  3146.     break;
  3147.     case 2: fprintf(js_include_file,"\
  3148. \n<!-- begin function 2 read_canvas() -->\n\
  3149. function read_canvas(){\
  3150. if( userdraw_x.length == 0){alert(\"nothing drawn...\");return;}\
  3151. var reply_x = new Array();var reply_y = new Array();var p = 0;\
  3152. while(userdraw_x[p]){\
  3153.  reply_x[p] = px2x(userdraw_x[p]);\
  3154.  reply_y[p] = px2y(userdraw_y[p]);\
  3155.  p++;\
  3156. };\
  3157. if(p == 0){alert(\"nothing drawn...\");return;};\
  3158. if( document.getElementById(\"canvas_input0\")){\
  3159.  var p = 0;var input_reply = new Array();\
  3160.  if( document.getElementById(\"canvas_input0\")){\
  3161.   var t = 0;\
  3162.   while(document.getElementById(\"canvas_input\"+t)){\
  3163.    if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
  3164.     input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
  3165.     p++;\
  3166.    };\
  3167.    t++;\
  3168.   };\
  3169.  };\
  3170.  if( typeof userdraw_text != 'undefined' ){\
  3171.   return reply_x+\"\\n\"+reply_y+\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
  3172.  }\
  3173.  else\
  3174.  {\
  3175.   return reply_x+\"\\n\"+reply_y+\"\\n\"+input_reply;\
  3176.  }\
  3177. }\
  3178. else\
  3179. {\
  3180.  if( typeof userdraw_text != 'undefined' ){\
  3181.   return reply_x+\"\\n\"+reply_y+\"\\n\"+userdraw_text;\
  3182.  }\
  3183.  else\
  3184.  {\
  3185.   return reply_x+\"\\n\"+reply_y;\
  3186.  };\
  3187. };\
  3188. };\
  3189. this.read_canvas = read_canvas;\n\
  3190. <!-- end function 2 read_canvas() -->");
  3191.     break;
  3192.     case 3: fprintf(js_include_file,"\
  3193. \n<!-- begin function 3 read_canvas() -->\n\
  3194. function read_canvas(){\
  3195. if( userdraw_x.length == 0){alert(\"nothing drawn...\");return;}\
  3196. if( document.getElementById(\"canvas_input0\") || document.getElementById(\"mathml0\") ){\
  3197.  var p = 0;var input_reply = new Array();\
  3198.  if( document.getElementById(\"canvas_input0\")){\
  3199.   var t = 0;\
  3200.   while(document.getElementById(\"canvas_input\"+t)){\
  3201.    if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
  3202.     input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
  3203.     p++;\
  3204.    };\
  3205.    t++;\
  3206.   };\
  3207.  };\
  3208.  if( typeof userdraw_text != 'undefined' ){\
  3209.   return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+userdraw_radius+\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
  3210.  }\
  3211.  else\
  3212.  {\
  3213.   return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+userdraw_radius+\"\\n\"+input_reply;\
  3214.  }\
  3215. }\
  3216. else\
  3217. {\
  3218.  if( typeof userdraw_text != 'undefined' ){\
  3219.   return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+userdraw_radius+\"\\n\"+userdrawW_text;\
  3220.  }\
  3221.  else\
  3222.  {\
  3223.   return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+userdraw_radius;\
  3224.  }\
  3225. }\
  3226. };\
  3227. this.read_canvas = read_canvas;\n\
  3228. <!-- end function 3 read_canvas() -->");
  3229.     break;
  3230.     case 4: fprintf(js_include_file,"\
  3231. \n<!-- begin function 4 read_canvas() -->\n\
  3232. function read_canvas(){\
  3233. var reply_x = new Array();var reply_y = new Array();var p = 0;\
  3234. while(userdraw_x[p]){\
  3235.  reply_x[p] = px2x(userdraw_x[p]);\
  3236.  reply_y[p] = px2y(userdraw_y[p]);\
  3237.  p++;\
  3238. };\
  3239. if(p == 0){alert(\"nothing drawn...\");return;};\
  3240. if( document.getElementById(\"canvas_input0\") || document.getElementById(\"mathml0\") ){\
  3241.  var p = 0;var input_reply = new Array();\
  3242.  if( document.getElementById(\"canvas_input0\")){\
  3243.   var t = 0;\
  3244.   while(document.getElementById(\"canvas_input\"+t)){\
  3245.    if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
  3246.     input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
  3247.     p++;\
  3248.    };\
  3249.    t++;\
  3250.   };\
  3251.  };\
  3252.  if( typeof userdraw_text != 'undefined' ){\
  3253.   return reply_x+\"\\n\"+reply_y +\"\\n\"+userdraw_radius+\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
  3254.  }\
  3255.  else\
  3256.  {\
  3257.   return reply_x+\"\\n\"+reply_y +\"\\n\"+userdraw_radius+\"\\n\"+input_reply;\
  3258.  }\
  3259. }\
  3260. else\
  3261. {\
  3262.  if( typeof userdraw_text != 'undefined' ){\
  3263.   return reply_x+\"\\n\"+reply_y+\"\\n\"+userdraw_radius+\"\\n\"+userdraw_text;\
  3264.  }\
  3265.  else\
  3266.  {\
  3267.   return reply_x+\"\\n\"+reply_y+\"\\n\"+userdraw_radius;\
  3268.  }\
  3269. };\
  3270. };\
  3271. this.read_canvas = read_canvas;\n\
  3272. <!-- end function 4 read_canvas() -->");
  3273.     break;
  3274.     /*
  3275.         attention: we reset userdraw_x / userdraw_y  : because  userdraw_x = [][] userdraw_y = [][]
  3276.         used for userdraw multiple paths
  3277.     */
  3278.     case 5: fprintf(js_include_file,"\
  3279. \n<!-- begin function 5 read_canvas() -->\n\
  3280. function read_canvas(){\
  3281. var p = 0;\
  3282. var reply = \"\";\
  3283. for(p = 0; p < userdraw_x.length;p++){\
  3284.  if(userdraw_x[p] != null ){\
  3285.   reply = reply + userdraw_x[p]+\"\\n\"+userdraw_y[p]+\"\\n\";\
  3286.  };\
  3287. };\
  3288. if(p == 0){alert(\"nothing drawn...\");return;};\
  3289. userdraw_x = [];userdraw_y = [];\
  3290. if( document.getElementById(\"canvas_input0\") || document.getElementById(\"mathml0\") ){\
  3291.  var p = 0;var input_reply = new Array();\
  3292.  if( document.getElementById(\"canvas_input0\")){\
  3293.   var t = 0;\
  3294.   while(document.getElementById(\"canvas_input\"+t)){\
  3295.    if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
  3296.     input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
  3297.     p++;\
  3298.    };\
  3299.    t++;\
  3300.   };\
  3301.  };\
  3302.  if( typeof userdraw_text != 'undefined' ){\
  3303.   return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
  3304.  }\
  3305.  else\
  3306.  {\
  3307.   return reply +\"\\n\"+input_reply;\
  3308.  }\
  3309. }\
  3310. else\
  3311. {\
  3312.  if( typeof userdraw_text != 'undefined' ){\
  3313.   return reply+\"\\n\"+userdraw_text;\
  3314.  }\
  3315.  else\
  3316.  {\
  3317.   return reply;\
  3318.  }\
  3319. };\
  3320. };\
  3321. this.read_canvas = rdad_canvas;\n\
  3322. <!-- end function 5 read_canvas() -->");
  3323.     break;
  3324.     /*
  3325.         attention: we reset userdraw_x / userdraw_y  : because  userdraw_x = [][] userdraw_y = [][]
  3326.         used for userdraw multiple paths
  3327.     */
  3328.     case 6: fprintf(js_include_file,"\
  3329. \n<!-- begin function 6 read_canvas() -->\n\
  3330. function read_canvas(){\
  3331. var p = 0;\
  3332. var reply = \"\";\
  3333. var tmp_x = new Array();\
  3334. var tmp_y = new Array();\
  3335. for(p = 0 ; p < userdraw_x.length; p++){\
  3336.  tmp_x = userdraw_x[p];\
  3337.  tmp_y = userdraw_y[p];\
  3338.  if(tmp_x != null){\
  3339.   for(var i = 0 ; i < tmp_x.length ; i++){\
  3340.    tmp_x[i] = px2x(tmp_x[i]);\
  3341.    tmp_y[i] = px2y(tmp_y[i]);\
  3342.   };\
  3343.   reply = reply + tmp_x + \"\\n\" + tmp_y +\"\\n\";\
  3344.  };\
  3345. };\
  3346. if(p == 0){alert(\"nothing drawn...\");return;};\
  3347. userdraw_x = [];userdraw_y = [];\
  3348. if( document.getElementById(\"canvas_input0\") ){\
  3349.  var p = 0;var input_reply = new Array();\
  3350.  if( document.getElementById(\"canvas_input0\")){\
  3351.   var t = 0;\
  3352.   while(document.getElementById(\"canvas_input\"+t)){\
  3353.    if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
  3354.     input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
  3355.     p++;\
  3356.    };\
  3357.    t++;\
  3358.   };\
  3359.  };\
  3360.  if( typeof userdraw_text != 'undefined' ){\
  3361.   return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
  3362.  }\
  3363.  else\
  3364.  {\
  3365.   return reply +\"\\n\"+input_reply;\
  3366.  }\
  3367. }\
  3368. else\
  3369. {\
  3370.  if( typeof userdraw_text != 'undefined' ){\
  3371.   return reply +\"\\n\"+userdraw_text;\
  3372.  }\
  3373.  else\
  3374.  {\
  3375.   return reply;\
  3376.  }\
  3377. };\
  3378. };\
  3379. this.read_canvas = read_canvas;\n\
  3380. <!-- end function 6 read_canvas() -->");
  3381.     break;
  3382.     case 7: fprintf(js_include_file,"\
  3383. \n<!-- begin function 7 read_canvas() -->\n\
  3384. function read_canvas(){\
  3385. var reply = new Array();\
  3386. var p = 0;\
  3387. while(userdraw_x[p]){\
  3388.  reply[p] = userdraw_x[p] +\":\" + userdraw_y[p];\
  3389.  p++;\
  3390. };\
  3391. if(p == 0){alert(\"nothing drawn...\");return;};\
  3392. if( document.getElementById(\"canvas_input0\") ){\
  3393.  var p = 0;var input_reply = new Array();\
  3394.  if( document.getElementById(\"canvas_input0\")){\
  3395.   var t = 0;\
  3396.   while(document.getElementById(\"canvas_input\"+t)){\
  3397.    if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
  3398.     input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
  3399.     p++;\
  3400.    };\
  3401.    t++;\
  3402.   };\
  3403.  };\
  3404.  if( typeof userdraw_text != 'undefined' ){\
  3405.   return reply+\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
  3406.  }\
  3407.  else\
  3408.  {\
  3409.   return reply+\"\\n\"+input_reply;\
  3410.  }\
  3411. };\
  3412. else\
  3413. {\
  3414.  if( typeof userdraw_text != 'undefined' ){\
  3415.   return reply+\"\\n\"+userdraw_text;\
  3416.  }\
  3417.  else\
  3418.  {\
  3419.   return reply;\
  3420.  }\
  3421. };\
  3422. };\
  3423. this.read_canvas = read_canvas;\n\
  3424. <!-- end function 7 read_canvas() -->");
  3425.     break;
  3426.     case 8: fprintf(js_include_file,"\
  3427. \n<!-- begin function 8 read_canvas() -->\n\
  3428. function read_canvas(){\
  3429. var reply = new Array();\
  3430. var p = 0;\
  3431. while(userdraw_x[p]){\
  3432.  reply[p] = px2x(userdraw_x[p]) +\":\" + px2y(userdraw_y[p]);\
  3433.  p++;\
  3434. };\
  3435. if(p == 0){alert(\"nothing drawn...\");return;};\
  3436. if( document.getElementById(\"canvas_input0\") || document.getElementById(\"mathml0\") ){\
  3437.  var p = 0;var input_reply = new Array();\
  3438.  if( document.getElementById(\"canvas_input0\")){\
  3439.   var t = 0;\
  3440.   while(document.getElementById(\"canvas_input\"+t)){\
  3441.    if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
  3442.     input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
  3443.     p++;\
  3444.    };\
  3445.    t++;\
  3446.   };\
  3447.  };\
  3448.  if( typeof userdraw_text != 'undefined' ){\
  3449.   return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
  3450.  }\
  3451.  else\
  3452.  {\
  3453.   return reply +\"\\n\"+input_reply;\
  3454.  }\
  3455. }\
  3456. else\
  3457. {\
  3458.  if( typeof userdraw_text != 'undefined' ){\
  3459.   return reply +\"\\n\"+userdraw_text;\
  3460.  }\
  3461.  else\
  3462.  {\
  3463.   return reply;\
  3464.  }\
  3465. };\
  3466. };\
  3467. this.read_canvas = read_canvas;\n\
  3468. <!-- end function 8 read_canvas() -->");
  3469.     break;
  3470.     case 9: fprintf(js_include_file,"\
  3471. \n<!-- begin function 9 read_canvas() -->\n\
  3472. function read_canvas(){\
  3473. var reply = new Array();\
  3474. var p = 0;\
  3475. while(userdraw_x[p]){\
  3476.  reply[p] = userdraw_x[p] +\":\" + userdraw_y[p] + \":\" + userdraw_radius[p];\
  3477.  p++;\
  3478. };\
  3479. if(p == 0){alert(\"nothing drawn...\");return;};\
  3480. if( document.getElementById(\"canvas_input0\") ){\
  3481.  var p = 0;var input_reply = new Array();\
  3482.  if( document.getElementById(\"canvas_input0\")){\
  3483.   var t = 0;\
  3484.   while(document.getElementById(\"canvas_input\"+t)){\
  3485.    if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
  3486.     input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
  3487.     p++;\
  3488.    };\
  3489.    t++;\
  3490.   };\
  3491.  };\
  3492.  if( typeof userdraw_text != 'undefined' ){\
  3493.   return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
  3494.  }\
  3495.  else\
  3496.  {\
  3497.   return reply +\"\\n\"+input_reply;\
  3498.  }\
  3499. }\
  3500. else\
  3501. {\
  3502.  if( typeof userdraw_text != 'undefined' ){\
  3503.   return reply +\"\\n\"+userdraw_text;\
  3504.  }\
  3505.  else\
  3506.  {\
  3507.   return reply;\
  3508.  }\
  3509. };\
  3510. };\
  3511. this.read_canvas = read_canvas;\n\
  3512. <!-- end function 9 read_canvas() -->");
  3513.     break;
  3514.     case 10: fprintf(js_include_file,"\
  3515. \n<!-- begin function 10 read_canvas() -->\n\
  3516. function read_canvas(){\
  3517. var reply = new Array();\
  3518. var p = 0;\
  3519. while(userdraw_x[p]){\
  3520.  reply[p] = px2x(userdraw_x[p]) +\":\" + px2y(userdraw_y[p]) +\":\" + userdraw_radius[p];\
  3521.  p++;\
  3522. };\
  3523. if(p == 0){alert(\"nothing drawn...\");return;};\
  3524. if( document.getElementById(\"canvas_input0\") ){\
  3525.  var p = 0;var input_reply = new Array();\
  3526.  if( document.getElementById(\"canvas_input0\")){\
  3527.   var t = 0;\
  3528.   while(document.getElementById(\"canvas_input\"+t)){\
  3529.    if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
  3530.     input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
  3531.     p++;\
  3532.    };\
  3533.    t++;\
  3534.   };\
  3535.  };\
  3536.  if( typeof userdraw_text != 'undefined' ){\
  3537.   return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
  3538.  }\
  3539.  else\
  3540.  {\
  3541.   return reply +\"\\n\"+input_reply;\
  3542.  }\
  3543. }\
  3544. else\
  3545. {\
  3546.  if( typeof userdraw_text != 'undefined' ){\
  3547.   return reply +\"\\n\"+userdraw_text;\
  3548.  }\
  3549.  else\
  3550.  {\
  3551.   return reply;\
  3552.  }\
  3553. };\
  3554. };\
  3555. this.read_canvas = read_canvas;\n\
  3556. <!-- end function 10 read_canvas() -->");
  3557.     break;
  3558.     case 11: fprintf(js_include_file,"\
  3559. \n<!-- begin function 11 read_canvas() -->\n\
  3560. function read_canvas(){\
  3561. var reply = \"\";\
  3562. var p = 0;\
  3563. while(userdraw_x[p]){\
  3564.  reply = reply + px2x(userdraw_x[p]) +\",\" + px2y(userdraw_y[p]) +\",\" + px2x(userdraw_x[p+1]) +\",\" + px2y(userdraw_y[p+1]) +\"\\n\" ;\
  3565.  p = p+2;\
  3566. };\
  3567. if(p == 0){alert(\"nothing drawn...\");return;};\
  3568. if( document.getElementById(\"canvas_input0\") || document.getElementById(\"mathml0\") ){\
  3569.  var p = 0;var input_reply = new Array();\
  3570.  if( document.getElementById(\"canvas_input0\")){\
  3571.   var t = 0;\
  3572.   while(document.getElementById(\"canvas_input\"+t)){\
  3573.    if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
  3574.     input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
  3575.     p++;\
  3576.    };\
  3577.    t++;\
  3578.   };\
  3579.  };\
  3580.  if( typeof userdraw_text != 'undefined' ){\
  3581.   return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
  3582.  }\
  3583.  else\
  3584.  {\
  3585.   return reply +\"\\n\"+input_reply;\
  3586.  }\
  3587. }\
  3588. else\
  3589. {\
  3590.  if( typeof userdraw_text != 'undefined' ){\
  3591.   return reply +\"\\n\"+userdraw_text;\
  3592.  }\
  3593.  else\
  3594.  {\
  3595.   return reply;\
  3596.  }\
  3597. };\
  3598. };\
  3599. this.read_canvas = read_canvas;\n\
  3600. <!-- end function 11 read_canvas() -->");
  3601.     break;
  3602.     case 12: fprintf(js_include_file,"\
  3603. \n<!-- begin function 12 read_canvas() -->\n\
  3604. function read_canvas(){\
  3605. var reply = \"\";\
  3606. var p = 0;\
  3607. for(p = 0; p< userdraw_x.lenght;p = p+2){\
  3608.  if(userdraw_x[p] != null){\
  3609.    reply = reply + userdraw_x[p] +\",\" + userdraw_y[p] +\",\" + userdraw_x[p+1] +\",\" + userdraw_y[p+1] +\"\\n\" ;\
  3610.  };\
  3611. };\
  3612. if(p == 0){alert(\"nothing drawn...\");return;};\
  3613. if( document.getElementById(\"canvas_input0\") ){\
  3614.  var p = 0;var input_reply = new Array();\
  3615.  if( document.getElementById(\"canvas_input0\")){\
  3616.   var t = 0;\
  3617.   while(document.getElementById(\"canvas_input\"+t)){\
  3618.    if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
  3619.     input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
  3620.     p++;\
  3621.    };\
  3622.    t++;\
  3623.   };\
  3624.  };\
  3625.  if( typeof userdraw_text != 'undefined' ){\
  3626.   return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
  3627.  }\
  3628.  else\
  3629.  {\
  3630.   return reply +\"\\n\"+input_reply;\
  3631.  }\
  3632. }\
  3633. else\
  3634. {\
  3635.  if( typeof userdraw_text != 'undefined' ){\
  3636.   return reply +\"\\n\"+userdraw_text\
  3637.  }\
  3638.  else\
  3639.  {\
  3640.   return reply;\
  3641.  }\
  3642. };\
  3643. };\
  3644. this.read_canvas = read_canvas;\n\
  3645. <!-- end function 12 read_canvas() -->");
  3646.     break;
  3647.     case 13: fprintf(js_include_file,"\
  3648. \n<!-- begin function 13 read_canvas() -->\n\
  3649. function read_canvas(){\
  3650. var reply = new Array();\
  3651. var p = 0;var i = 0;\
  3652. while(userdraw_x[p]){\
  3653.  reply[i] = px2x(userdraw_x[p]) +\":\" + px2y(userdraw_y[p]) +\":\" + px2x(userdraw_x[p+1]) +\":\" + px2y(userdraw_y[p+1]);\
  3654.  p = p+2;i++;\
  3655. };\
  3656. if(p == 0){alert(\"nothing drawn...\");return;};\
  3657. if( document.getElementById(\"canvas_input0\") ){\
  3658.  var p = 0;var input_reply = new Array();\
  3659.  if( document.getElementById(\"canvas_input0\")){\
  3660.   var t = 0;\
  3661.   while(document.getElementById(\"canvas_input\"+t)){\
  3662.    if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
  3663.     input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
  3664.     p++;\
  3665.    };\
  3666.    t++;\
  3667.   };\
  3668.  };\
  3669.  if( typeof userdraw_text != 'undefined' ){\
  3670.   return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
  3671.  }\
  3672.  else\
  3673.  {\
  3674.   return reply +\"\\n\"+input_reply;\
  3675.  }\
  3676. }\
  3677. else\
  3678. {\
  3679.  if( typeof userdraw_text != 'undefined' ){\
  3680.   return reply +\"\\n\"+userdraw_text\
  3681.  }\
  3682.  else\
  3683.  {\
  3684.   return reply;\
  3685.  }\
  3686. };\
  3687. };\
  3688. this.read_canvas = read_canvas;\n\
  3689. <!-- end function 13 read_canvas() -->");
  3690.     break;
  3691.     case 14: fprintf(js_include_file,"\
  3692. \n<!-- begin function 14 read_canvas() -->\n\
  3693. function read_canvas(){\
  3694. var reply = new Array();\
  3695. var p = 0;var i = 0;\
  3696. while(userdraw_x[p]){\
  3697.  reply[i] = userdraw_x[p] +\":\" + userdraw_y[p] +\":\" + userdraw_x[p+1] +\":\" + userdraw_y[p+1];\
  3698.  p = p+2;i++;\
  3699. };\
  3700. if(p == 0){alert(\"nothing drawn...\");return;};\
  3701. if( document.getElementById(\"canvas_input0\") ){\
  3702.  var p = 0;var input_reply = new Array();\
  3703.  if( document.getElementById(\"canvas_input0\")){\
  3704.   var t = 0;\
  3705.   while(document.getElementById(\"canvas_input\"+t)){\
  3706.    if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
  3707.     input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
  3708.     p++;\
  3709.    };\
  3710.    t++;\
  3711.   };\
  3712.  };\
  3713.  if( typeof userdraw_text != 'undefined' ){\
  3714.   return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
  3715.  }\
  3716.  else\
  3717.  {\
  3718.   return reply +\"\\n\"+input_reply;\
  3719.  }\
  3720. }\
  3721. else\
  3722. {\
  3723.  if( typeof userdraw_text != 'undefined' ){\
  3724.   return reply +\"\\n\"+userdraw_text;\
  3725.  }\
  3726.  else\
  3727.  {\
  3728.   return reply;\
  3729.  }\
  3730. };\
  3731. };\
  3732. this.read_canvas = read_canvas;\n\
  3733. <!-- end function 14 read_canvas() -->");
  3734.     break;
  3735.     case 15: fprintf(js_include_file,"\
  3736. \n<!-- begin function 15  read_canvas() -->\n\
  3737. function read_canvas(){\
  3738. var input_reply = new Array();\
  3739. var p = 0;\
  3740. if( document.getElementById(\"canvas_input0\")){\
  3741.  var t = 0;\
  3742.  while(document.getElementById(\"canvas_input\"+t)){\
  3743.   if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
  3744.    input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
  3745.    p++;\
  3746.   };\
  3747.   t++;\
  3748.  };\
  3749. };\
  3750. if( typeof userdraw_text != 'undefined' ){\
  3751.   return input_reply +\"\\n\"+userdraw_text;\
  3752. }\
  3753. else\
  3754. {\
  3755.  return input_reply;\
  3756. };\
  3757. };\
  3758. this.read_canvas = read_canvas;\n\
  3759. <!-- end function 15 read_canvas() -->");
  3760.     break;
  3761.     case 16: fprintf(js_include_file,"\
  3762. \n<!-- begin function 16 read_mathml() -->\n\
  3763. function read_mathml(){\
  3764. var reply = new Array();\
  3765. var p = 0;\
  3766. if( document.getElementById(\"mathml0\")){\
  3767.  while(document.getElementById(\"mathml\"+p)){\
  3768.   reply[p] = document.getElementById(\"mathml\"+p).value;\
  3769.   p++;\
  3770.  };\
  3771. };\
  3772. return reply;\
  3773. };\
  3774. this.read_mathml = read_mathml;\n\
  3775. <!-- end function 16 read_mathml() -->");
  3776.     break;
  3777.     case 17:  fprintf(js_include_file,"\
  3778. \n<!-- begin function 17 read_canvas() -->\n\
  3779. function read_canvas(){\
  3780. if( userdraw_text.length == 0){alert(\"no text typed...\");return;}\
  3781. return userdraw_text;\
  3782. };\
  3783. this.read_canvas = read_canvas;\n\
  3784. <!-- end function 17 read_canvas() -->");
  3785.     break;
  3786.     case 18: fprintf(js_include_file,"\
  3787. \n<!-- begin function 18 read_canvas() -->\n\
  3788. function read_canvas(){\
  3789. var p = 0;\
  3790. var reply = new Array();\
  3791. var name;\
  3792. var t = true;\
  3793. while(t){\
  3794.  try{ name = eval('clocks'+p);\
  3795.  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;};\
  3796. };\
  3797. if( p == 0){alert(\"clock(s) not modified...\");return;}\
  3798. return reply;\
  3799. };\
  3800. this.read_canvas = read_canvas;\n\
  3801. <!-- end function 18 read_canvas() -->");
  3802.     break;
  3803.     case 19: fprintf(js_include_file,"\
  3804. \n<!-- begin function 19 read_canvas() -->\n\
  3805. function read_canvas(){\
  3806. return reply[0];\
  3807. };\
  3808. this.read_canvas = read_canvas;\n\
  3809. <!-- end function 19 read_canvas() -->");
  3810.     case 20: fprintf(js_include_file,"\
  3811. \n<!-- begin function 20 read_canvas() -->\n\
  3812. function read_canvas(){\
  3813. var len  = ext_drag_images.length;\
  3814. var reply = new Array(len);\
  3815. for(var p = 0 ; p < len ; p++){\
  3816.    var img = ext_drag_images[p];\
  3817.    reply[p] = px2x(img[6])+\":\"+px2y(img[7]);\
  3818. };\
  3819. return reply;\
  3820. };\
  3821. this.read_canvas = read_canvas;\n\
  3822. <!-- end function 20 read_canvas() -->");
  3823.     break;
  3824.     case 21: fprintf(js_include_file,"\
  3825. \n<!-- begin function 21 read_canvas() -->\n\
  3826. function read_canvas(){\
  3827. if( userdraw_x.length == 0){alert(\"nothing drawn...\");return;}\
  3828. var reply_coord = new Array();var p = 0;\
  3829. while(userdraw_x[p]){\
  3830.  reply_coord[p] = \"(\"+px2x(userdraw_x[p])+\":\"+px2y(userdraw_y[p])+\")\";\
  3831.  p++;\
  3832. };\
  3833. if(p == 0){alert(\"nothing drawn...\");return;};\
  3834. if( document.getElementById(\"canvas_input0\") ){\
  3835.  var p = 0;var input_reply = new Array();\
  3836.  if( document.getElementById(\"canvas_input0\")){\
  3837.   var t = 0;\
  3838.   while(document.getElementById(\"canvas_input\"+t)){\
  3839.    if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
  3840.     input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
  3841.     p++;\
  3842.    };\
  3843.    t++;\
  3844.   };\
  3845.  };\
  3846.  if( typeof userdraw_text != 'undefined' ){\
  3847.   return reply_coord+\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
  3848.  }\
  3849.  else\
  3850.  {\
  3851.   return reply_coord+\"\\n\"+input_reply;\
  3852.  }\
  3853. }\
  3854. else\
  3855. {\
  3856.  if( typeof userdraw_text != 'undefined' ){\
  3857.   return reply_coord+\"\\n\"+userdraw_text;\
  3858.  }\
  3859.  else\
  3860.  {\
  3861.   return reply_coord;\
  3862.  };\
  3863. };\
  3864. };\
  3865. this.read_canvas = read_canvas;\n\
  3866. <!-- end function 21 read_canvas() -->");
  3867.     break;
  3868.     case 22: fprintf(js_include_file,"\
  3869. \n<!-- begin function 22 read_canvas() -->\n\
  3870. function read_canvas(){\
  3871. var reply = new Array();\
  3872. var p = 0;\
  3873. var idx = 0;\
  3874. while(userdraw_x[p]){\
  3875.  reply[idx] = px2x(userdraw_x[p]);\
  3876.  idx++;\
  3877.  reply[idx] = px2y(userdraw_y[p]);\
  3878.  idx++;p++;\
  3879. };\
  3880. if(p == 0){alert(\"nothing drawn...\");return;};\
  3881. if( document.getElementById(\"canvas_input0\") ){\
  3882.  var p = 0;var input_reply = new Array();\
  3883.  if( document.getElementById(\"canvas_input0\")){\
  3884.   var t = 0;\
  3885.   while(document.getElementById(\"canvas_input\"+t)){\
  3886.    if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
  3887.     input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
  3888.     p++;\
  3889.    };\
  3890.    t++;\
  3891.   };\
  3892.  };\
  3893.  if( typeof userdraw_text != 'undefined' ){\
  3894.   return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
  3895.  }\
  3896.  else\
  3897.  {\
  3898.   return reply +\"\\n\"+input_reply;\
  3899.  }\
  3900. }\
  3901. else\
  3902. {\
  3903.  if( typeof userdraw_text != 'undefined' ){\
  3904.   return reply +\"\\n\"+userdraw_text;\
  3905.  }\
  3906.  else\
  3907.  {\
  3908.   return reply;\
  3909.  }\
  3910. };\
  3911. };\
  3912. this.read_canvas = read_canvas;\n\
  3913. <!-- end function 22 read_canvas() -->");
  3914.     break;
  3915.     case 23: fprintf(js_include_file,"\
  3916. \n<!-- begin function 23 read_canvas() default 5 px marge -->\n\
  3917. function read_canvas(){\
  3918. if( userdraw_x.length < 2){alert(\"nothing drawn...\");return;}\
  3919. var reply_x = new Array();var reply_y = new Array();var p = 0;\
  3920. var lu = userdraw_x.length;\
  3921. if( lu != userdraw_y.length ){ alert(\"x / y mismatch !\");return;}\
  3922. var marge = 5;\
  3923. reply_x[p] = px2x(userdraw_x[0]);reply_y[p] = px2y(userdraw_y[0]);p++;\
  3924. for(var i = 0; i < lu - 1 ; i++ ){\
  3925.  if( (userdraw_x[i] < (userdraw_x[i+1] + marge)) && (userdraw_x[i] > (userdraw_x[i+1] - marge)) ){\
  3926.   if( (userdraw_y[i] < (userdraw_y[i+1] + marge)) && (userdraw_y[i] > (userdraw_y[i+1] - marge)) ){\
  3927.    reply_x[p] = px2x(userdraw_x[i]);reply_y[p] = px2y(userdraw_y[i]);\
  3928.    if( isNaN(reply_x[p]) || isNaN(reply_y[p]) ){ alert(\"hmmmm ?\");return; };\
  3929.    p++;\
  3930.   };\
  3931.  };\
  3932. };\
  3933. if( document.getElementById(\"canvas_input0\")){\
  3934.  var p = 0;var input_reply = new Array();\
  3935.  if( document.getElementById(\"canvas_input0\")){\
  3936.   var t = 0;\
  3937.   while(document.getElementById(\"canvas_input\"+t)){\
  3938.    if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
  3939.     input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
  3940.     p++;\
  3941.    };\
  3942.    t++;\
  3943.   };\
  3944.  };\
  3945.  if( typeof userdraw_text != 'undefined' ){\
  3946.   return reply_x+\"\\n\"+reply_y+\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
  3947.  }\
  3948.  else\
  3949.  {\
  3950.   return reply_x+\"\\n\"+reply_y+\"\\n\"+input_reply;\
  3951.  }\
  3952. }\
  3953. else\
  3954. {\
  3955.  if( typeof userdraw_text != 'undefined' ){\
  3956.   return reply_x+\"\\n\"+reply_y+\"\\n\"+userdraw_text;\
  3957.  }\
  3958.  else\
  3959.  {\
  3960.   return reply_x+\"\\n\"+reply_y;\
  3961.  };\
  3962. };\
  3963. };\
  3964. this.read_canvas = read_canvas;\n\
  3965. <!-- end function 23 read_canvas() -->");
  3966.     break;
  3967.  
  3968.     default: canvas_error("hmmm unknown replyformat...");break;
  3969. }
  3970.  return;
  3971. }
  3972.  
  3973.  
  3974. /*
  3975.  add drawfunction :
  3976.  - functions used by userdraw_primitives (circle,rect,path,triangle...)
  3977.  - things not covered by the drag&drop library (static objects like parallel, lattice ,gridfill , imagefill)
  3978.  - grid / mathml
  3979.  - will not scale or zoom in
  3980.  - will not be filled via pixel operations like fill / floodfill / filltoborder / clickfill
  3981.  - is printed directly into 'js_include_file'
  3982. */
  3983.  
  3984. void add_javascript_functions(int js_functions[],int canvas_root_id){
  3985. int i;
  3986. for(i = 0 ; i < MAX_JS_FUNCTIONS; i++){
  3987.  if( js_functions[i] == 1){
  3988.     switch(i){
  3989.     case DRAG_EXTERNAL_IMAGE:
  3990. fprintf(js_include_file,"\n<!-- drag external images --->\n\
  3991. var external_canvas = create_canvas%d(7,xsize,ysize);\
  3992. var external_ctx = external_canvas.getContext(\"2d\");\
  3993. var external_canvas_rect = external_canvas.getBoundingClientRect();\
  3994. canvas_div.addEventListener(\"mousedown\",setxy,false);\
  3995. canvas_div.addEventListener(\"mouseup\",dragstop,false);\
  3996. canvas_div.addEventListener(\"mousemove\",dragxy,false);\
  3997. var selected_image = null;\
  3998. var ext_image_cnt = 0;\
  3999. var ext_drag_images = new Array();\
  4000. function drag_external_image(URL,sx,sy,swidth,sheight,x0,y0,width,height,idx,draggable){\
  4001. ext_image_cnt = idx;\
  4002. var image = new Image();\
  4003. image.src = URL;\
  4004. image.onload = function(){\
  4005.  if( x0 < 1 ){ x0 = 0; };if( y0 < 1 ){ y0 = 0; };if( sx < 1 ){ sx = 0; };if( sy < 1 ){ sy = 0; };\
  4006.  if( width < 1 ){ width = image.width; };if( height < 1 ){ height = image.height; };\
  4007.  if( swidth < 1 ){ swidth = image.width; };if( sheight < 1 ){ sheight = image.height; };\
  4008.  img = new Array(10);\
  4009.  img[0] = draggable;img[1] = image;img[2] = sx;img[3] = sy;img[4] = swidth;img[5] = sheight;\
  4010.  img[6] = x0;img[7] = y0;img[8] = width;img[9] = height;\
  4011.  ext_drag_images[idx] = img;\
  4012.  external_ctx.drawImage(img[1],img[2],img[3],img[4],img[5],img[6],img[7],img[8],img[9]);\
  4013. };\
  4014. };\
  4015. function dragstop(evt){\
  4016. selected_image = null;return;\
  4017. };\
  4018. function dragxy(evt){\
  4019. if( selected_image != null ){\
  4020.  var xoff = (document.documentElement.scrollLeft ? document.documentElement.scrollLeft : document.body.scrollLeft);\
  4021.  var yoff = (document.documentElement.scrollTop ? document.documentElement.scrollTop : document.body.scrollTop);\
  4022.  var s_img = ext_drag_images[selected_image];\
  4023.  s_img[6] = evt.clientX - external_canvas_rect.left + xoff;\
  4024.  s_img[7] = evt.clientY - external_canvas_rect.top + yoff;\
  4025.  ext_drag_images[selected_image] = s_img;\
  4026.  external_ctx.clearRect(0,0,xsize,ysize);\
  4027.  for(var i = 0; i <= ext_image_cnt ; i++){\
  4028.   var img = ext_drag_images[i];\
  4029.   external_ctx.drawImage(img[1],img[2],img[3],img[4],img[5],img[6],img[7],img[8],img[9]);\
  4030.  };\
  4031. };\
  4032. };\
  4033. function setxy(evt){\
  4034. if( ! selected_image && evt.which == 1 ){\
  4035.  var xoff = (document.documentElement.scrollLeft ? document.documentElement.scrollLeft : document.body.scrollLeft);\
  4036.  var yoff = (document.documentElement.scrollTop ? document.documentElement.scrollTop : document.body.scrollTop);\
  4037.  var xm = evt.clientX - external_canvas_rect.left + xoff;\
  4038.  var ym = evt.clientY - external_canvas_rect.top + yoff;\
  4039.  for(var p = 0 ; p <= ext_image_cnt ; p++){\
  4040.   var img = ext_drag_images[p];\
  4041.   if( img[0] == 1 ){\
  4042.    var w = img.width;\
  4043.    var h = img.height;\
  4044.    if( xm > img[6] && xm < img[6] + img[4]){\
  4045.     if( ym > img[7] && ym < img[7] + img[5]){\
  4046.      img[6] = xm;\
  4047.      img[7] = ym;\
  4048.      ext_drag_images[p] = img;\
  4049.      selected_image = p;\
  4050.      dragxy(evt);\
  4051.     };\
  4052.    };\
  4053.   };\
  4054.  };\
  4055. }\
  4056. else\
  4057. {\
  4058.  selected_image = null;\
  4059. };\
  4060. };",canvas_root_id);
  4061.     break;
  4062.  
  4063.     case DRAW_EXTERNAL_IMAGE:
  4064. fprintf(js_include_file,"\n<!-- draw external images -->\n\
  4065. draw_external_image = function(URL,sx,sy,swidth,sheight,x0,y0,width,height,draggable){\
  4066. var image = new Image();\
  4067. image.src = URL;\
  4068. var canvas_bg_div = document.getElementById(\"canvas_div%d\");\
  4069. image.onload = function(){\
  4070.  if( x0 < 1 ){ x0 = 0; };\
  4071.  if( y0 < 1 ){ y0 = 0; };\
  4072.  if( sx < 1 ){ sx = 0; };\
  4073.  if( sy < 1 ){ sy = 0; };\
  4074.  if( width < 1 ){ width = image.width;};\
  4075.  if( height < 1 ){ height = image.height;};\
  4076.  if( swidth < 1 ){ swidth = image.width;};\
  4077.  if( sheight < 1 ){ sheight = image.height;};\
  4078.  var ml = x0 - sx;\
  4079.  var mh = y0 - sy;\
  4080.  canvas_bg_div.style.backgroundPosition= \"left \"+ml+\"px top \"+mh+\"px\";\
  4081.  canvas_bg_div.style.backgroundSize = width+\"px \"+height+\"px\";\
  4082.  canvas_bg_div.style.backgroundRepeat = \"no-repeat\";\
  4083.  canvas_bg_div.style.backgroundPosition= sx+\"px \"+sy+\"px\";\
  4084.  canvas_bg_div.style.backgroundImage = \"url(\" + URL + \")\";\
  4085. };\
  4086. };",canvas_root_id);    
  4087.     break;
  4088.    
  4089.     case DRAW_ZOOM_BUTTONS: /* 6 rectangles 15x15 px  forbidden zone for drawing : y < ysize - 15*/
  4090. fprintf(js_include_file,"\n<!-- draw zoom buttons -->\n\
  4091. draw_zoom_buttons = function(canvas_type,color,opacity){\
  4092. var obj;\
  4093. if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
  4094.  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
  4095. }\
  4096. else\
  4097. {\
  4098.  obj = create_canvas%d(canvas_type,xsize,ysize);\
  4099. };\
  4100. var ctx = obj.getContext(\"2d\");\
  4101. ctx.font =\"18px Ariel\";\
  4102. ctx.textAlign = \"right\";\
  4103. ctx.fillStyle=\"rgba(\"+color+\",\"+opacity+\")\";\
  4104. ctx.fillText(\"+\",xsize,ysize);\
  4105. ctx.fillText(\"\\u2212\",xsize - 15,ysize);\
  4106. ctx.fillText(\"\\u2192\",xsize - 30,ysize-2);\
  4107. ctx.fillText(\"\\u2190\",xsize - 45,ysize-2);\
  4108. ctx.fillText(\"\\u2191\",xsize - 60,ysize-2);\
  4109. ctx.fillText(\"\\u2193\",xsize - 75,ysize-2);\
  4110. ctx.fillText(\"\\u00D7\",xsize - 90,ysize-2);\
  4111. ctx.stroke();\
  4112. };",canvas_root_id,canvas_root_id,canvas_root_id);
  4113.    
  4114.     break;
  4115.     case DRAW_GRIDFILL:/* not used for userdraw */
  4116. fprintf(js_include_file,"\n<!-- draw gridfill -->\n\
  4117. draw_gridfill = function(canvas_type,x0,y0,dx,dy,linewidth,color,opacity,xsize,ysize){\
  4118. var obj;\
  4119. if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
  4120.  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
  4121. }\
  4122. else\
  4123. {\
  4124.  obj = create_canvas%d(canvas_type,xsize,ysize);\
  4125. };\
  4126. var ctx = obj.getContext(\"2d\");\
  4127. var x,y;\
  4128. ctx.save();\
  4129. ctx.strokeStyle=\"rgba(\"+color+\",\"+opacity+\")\";\
  4130. snap_x = dx;snap_y = dy;\
  4131. for( x = x0 ; x < xsize+dx ; x = x + dx ){\
  4132.    ctx.moveTo(x,y0);\
  4133.    ctx.lineTo(x,ysize);\
  4134. };\
  4135. for( y = y0 ; y < ysize+dy; y = y + dy ){\
  4136.    ctx.moveTo(x0,y);\
  4137.    ctx.lineTo(xsize,y);\
  4138. };\
  4139. ctx.stroke();\
  4140. ctx.restore();\
  4141. return;};",canvas_root_id,canvas_root_id,canvas_root_id);
  4142.     break;
  4143.    
  4144.     case DRAW_IMAGEFILL:/* not  used for userdraw */
  4145. fprintf(js_include_file,"\n<!-- draw imagefill -->\n\
  4146. draw_imagefill = function(canvas_type,x0,y0,URL,xsize,ysize){\
  4147. var obj;\
  4148. if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
  4149.  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
  4150. }\
  4151. else\
  4152. {\
  4153.  obj = create_canvas%d(canvas_type,xsize,ysize);\
  4154. };\
  4155. var ctx = obj.getContext(\"2d\");\
  4156. ctx.save();\
  4157. var img = new Image();\
  4158. img.src = URL;\
  4159. img.onload = function(){\
  4160.  if( (img.width > xsize-x0) && (img.height > ysize-y0) ){\
  4161.    ctx.drawImage(img,x0,y0,xsize,ysize);\
  4162.  }\
  4163.  else\
  4164.  {\
  4165.    var repeat = \"repeat\";\
  4166.    if(img.width > xsize - x0){\
  4167.         repeat = \"repeat-y\";\
  4168.    }\
  4169.    else\
  4170.    {\
  4171.     if( img.height > ysize -x0 ){\
  4172.      repeat = \"repeat-x\";\
  4173.     }\
  4174.    }\
  4175.    var pattern = ctx.createPattern(img,repeat);\
  4176.    ctx.rect(x0,y0,xsize,ysize);\
  4177.    ctx.fillStyle = pattern;\
  4178.  }\
  4179.  ctx.fill();\
  4180. };\
  4181. ctx.restore();\
  4182. return;\
  4183. };",canvas_root_id,canvas_root_id,canvas_root_id);
  4184.     break;
  4185.    
  4186.     case DRAW_DOTFILL:/* not  used for userdraw */
  4187. fprintf(js_include_file,"\n<!-- draw dotfill -->\n\
  4188. draw_dotfill = function(canvas_type,x0,y0,dx,dy,radius,color,opacity,xsize,ysize){\
  4189. var obj;\
  4190. if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
  4191.  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
  4192. }\
  4193. else\
  4194. {\
  4195.  obj = create_canvas%d(canvas_type,xsize,ysize);\
  4196. };\
  4197. var ctx = obj.getContext(\"2d\");\
  4198. var x,y;\
  4199. ctx.closePath();\
  4200. ctx.save();\
  4201. snap_x = dx;snap_y = dy;\
  4202. ctx.fillStyle=\"rgba(\"+color+\",\"+opacity+\")\";\
  4203. for( x = x0 ; x < xsize+dx ; x = x + dx ){\
  4204.  for( y = y0 ; y < ysize+dy ; y = y + dy ){\
  4205.   ctx.arc(x,y,radius,0,2*Math.PI,false);\
  4206.   ctx.closePath();\
  4207.  }\
  4208. }\
  4209. ctx.fill();\
  4210. ctx.restore();\
  4211. return;};",canvas_root_id,canvas_root_id,canvas_root_id);
  4212.     break;
  4213.  
  4214.     case DRAW_DIAMONDFILL:/* not used for userdraw */
  4215. fprintf(js_include_file,"\n<!-- draw hatch fill -->\n\
  4216. draw_diamondfill = function(canvas_type,x0,y0,dx,dy,linewidth,stroke_color,stroke_opacity,xsize,ysize){\
  4217.  var obj;\
  4218. if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
  4219.  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
  4220. }\
  4221. else\
  4222. {\
  4223.  obj = create_canvas%d(canvas_type,xsize,ysize);\
  4224. };\
  4225. var ctx = obj.getContext(\"2d\");\
  4226. var x;\
  4227. var y;\
  4228. ctx.save();\
  4229. ctx.lineWidth = linewidth;\
  4230. ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  4231. y = ysize;\
  4232. for( x = x0 ; x < xsize ; x = x + dx ){\
  4233.  ctx.moveTo(x,y0);\
  4234.  ctx.lineTo(xsize,y);\
  4235.  y = y - dy;\
  4236. };\
  4237. y = y0;\
  4238. for( x = xsize ; x > 0 ; x = x - dx){\
  4239.  ctx.moveTo(x,ysize);\
  4240.  ctx.lineTo(x0,y);\
  4241.  y = y + dy;\
  4242. };\
  4243. x = x0;\
  4244. for( y = y0 ; y < ysize ; y = y + dy ){\
  4245.  ctx.moveTo(xsize,y);\
  4246.  ctx.lineTo(x,ysize);\
  4247.  x = x + dx;\
  4248. };\
  4249. x = xsize;\
  4250. for( y = ysize ; y > y0 ; y = y - dy ){\
  4251.  ctx.moveTo(x,y0);\
  4252.  ctx.lineTo(x0,y);\
  4253.  x = x - dx;\
  4254. };\
  4255. ctx.stroke();\
  4256. ctx.restore();\
  4257. return;\
  4258. }",canvas_root_id,canvas_root_id,canvas_root_id);
  4259.     break;
  4260.    
  4261.     case DRAW_HATCHFILL:/* not used for userdraw */
  4262. fprintf(js_include_file,"\n<!-- draw hatch fill -->\n\
  4263. draw_hatchfill = function(canvas_type,x0,y0,dx,dy,linewidth,stroke_color,stroke_opacity,xsize,ysize){\
  4264.  var obj;\
  4265. if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
  4266.  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
  4267. }\
  4268. else\
  4269. {\
  4270.  obj = create_canvas%d(canvas_type,xsize,ysize);\
  4271. };\
  4272. var ctx = obj.getContext(\"2d\");\
  4273. var x;\
  4274. var y;\
  4275. ctx.save();\
  4276. ctx.lineWidth = linewidth;\
  4277. ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  4278. y = ysize;\
  4279. for( x = x0 ; x < xsize ; x = x + dx ){\
  4280.  ctx.moveTo(x,y0);\
  4281.  ctx.lineTo(xsize,y);\
  4282.  y = y - dy;\
  4283. };\
  4284. y = y0;\
  4285. for( x = xsize ; x >= dx ; x = x - dx){\
  4286.  ctx.moveTo(x,ysize);\
  4287.  ctx.lineTo(x0,y);\
  4288.  y = y + dy;\
  4289. };\
  4290. ctx.stroke();\
  4291. ctx.restore();\
  4292. return;\
  4293. };",canvas_root_id,canvas_root_id,canvas_root_id);
  4294.     break;
  4295.     case DRAW_CIRCLES:/*  used for userdraw */
  4296. fprintf(js_include_file,"\n<!-- draw circles -->\n\
  4297. 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){\
  4298. ctx.save();\
  4299. if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
  4300. if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
  4301. ctx.lineWidth = line_width;\
  4302. for(var p = 0 ; p < x_points.length ; p++ ){\
  4303.  ctx.beginPath();\
  4304.  ctx.arc(x_points[p],y_points[p],radius[p],0,2*Math.PI,false);\
  4305.  ctx.closePath();\
  4306.  if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
  4307.  if(use_filled == 1){ctx.fillStyle = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";ctx.fill();}\
  4308.  ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  4309.  ctx.stroke();\
  4310. }\
  4311. ctx.restore();\
  4312. return;\
  4313. };");
  4314.     break;
  4315.     case DRAW_POLYLINE:/* user for userdraw : draw lines through points */
  4316. fprintf(js_include_file,"\n<!-- draw polyline -->\n\
  4317. draw_polyline = function(ctx,x_points,y_points,line_width,stroke_color,stroke_opacity,use_dashed,dashtype0,dashtype1,use_rotate,angle,use_translate,vector){\
  4318. ctx.save();\
  4319. if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
  4320. if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
  4321. ctx.lineWidth = line_width;\
  4322. ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  4323. if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
  4324. ctx.clearRect(0,0,xsize,ysize);\
  4325. ctx.beginPath();\
  4326. for(var p = 0 ; p < x_points.length-1 ; p++ ){\
  4327.  ctx.moveTo(x_points[p],y_points[p]);\
  4328.  ctx.lineTo(x_points[p+1],y_points[p+1]);\
  4329. }\
  4330. ctx.closePath();\
  4331. ctx.stroke();\
  4332. ctx.fillStyle =\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  4333. for(var p = 0 ; p < x_points.length ; p++ ){\
  4334.  ctx.beginPath();\
  4335.  ctx.arc(x_points[p],y_points[p],line_width,0,2*Math.PI,false);\
  4336.  ctx.closePath();ctx.fill();ctx.stroke();\
  4337. };\
  4338. ctx.restore();\
  4339. return;\
  4340. };");
  4341.     break;
  4342.    
  4343.     case DRAW_SEGMENTS:/*  used for userdraw */
  4344. fprintf(js_include_file,"\n<!-- draw segments -->\n\
  4345. draw_segments = function(ctx,x_points,y_points,line_width,stroke_color,stroke_opacity,use_dashed,dashtype0,dashtype1,use_rotate,angle,use_translate,vector){\
  4346. ctx.save();\
  4347. if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
  4348. if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
  4349. ctx.lineWidth = line_width;\
  4350. ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  4351. if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
  4352. for(var p = 0 ; p < x_points.length ; p = p+2 ){\
  4353.  ctx.beginPath();\
  4354.  ctx.moveTo(x_points[p],y_points[p]);\
  4355.  ctx.lineTo(x_points[p+1],y_points[p+1]);\
  4356.  ctx.closePath();\
  4357.  ctx.stroke();\
  4358.  }\
  4359.  ctx.restore();\
  4360.  return;\
  4361. };");
  4362.     break;
  4363.    
  4364.     case DRAW_LINES:/*  used for userdraw */
  4365. fprintf(js_include_file,"\n<!-- draw lines -->\n\
  4366. function calc_line(x1,x2,y1,y2){\
  4367. var marge = 2;\
  4368. if(x1 < x2+marge && x1>x2-marge){\
  4369.  return [x1,0,x1,ysize];\
  4370. };\
  4371. if(y1 < y2+marge && y1>y2-marge){\
  4372.  return [0,y1,xsize,y1];\
  4373. };\
  4374. var Y1 = y1 - (x1)*(y2 - y1)/(x2 - x1);\
  4375. var Y2 = y1 + (xsize - x1)*(y2 - y1)/(x2 - x1);\
  4376. return [0,Y1,xsize,Y2];\
  4377. };\
  4378. draw_lines = function(ctx,x_points,y_points,line_width,stroke_color,stroke_opacity,use_dashed,dashtype0,dashtype1,use_rotate,angle,use_translate,vector){\
  4379. ctx.save();\
  4380. var line = new Array(4);\
  4381. if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
  4382. if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
  4383. ctx.lineWidth = line_width;\
  4384. ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  4385. if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
  4386. for(var p = 0 ; p < x_points.length ; p = p+2 ){\
  4387.  line = calc_line(x_points[p],x_points[p+1],y_points[p],y_points[p+1]);\
  4388.  ctx.beginPath();\
  4389.  ctx.moveTo(line[0],line[1]);\
  4390.  ctx.lineTo(line[2],line[3]);\
  4391.  ctx.closePath();\
  4392.  ctx.stroke();\
  4393.  }\
  4394.  ctx.restore();\
  4395.  return;\
  4396. };");
  4397.     break;
  4398.  
  4399.     case DRAW_CROSSHAIRS:/*  used for userdraw */
  4400. fprintf(js_include_file,"\n<!-- draw crosshairs  -->\n\
  4401. draw_crosshairs = function(ctx,x_points,y_points,line_width,crosshair_size,stroke_color,stroke_opacity,use_rotate,angle,use_translate,vector){\
  4402. if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
  4403. if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
  4404. ctx.lineWidth = line_width;\
  4405. ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  4406. var x1,x2,y1,y2;\
  4407. for(var p = 0 ; p < x_points.length ; p++ ){\
  4408.  x1 = x_points[p] - crosshair_size;\
  4409.  x2 = x_points[p] + crosshair_size;\
  4410.  y1 = y_points[p] - crosshair_size;\
  4411.  y2 = y_points[p] + crosshair_size;\
  4412.  ctx.beginPath();\
  4413.  ctx.moveTo(x1,y1);\
  4414.  ctx.lineTo(x2,y2);\
  4415.  ctx.closePath();\
  4416.  ctx.stroke();\
  4417.  ctx.beginPath();\
  4418.  ctx.moveTo(x2,y1);\
  4419.  ctx.lineTo(x1,y2);\
  4420.  ctx.closePath();\
  4421.  ctx.stroke();\
  4422. }\
  4423. ctx.restore();\
  4424.  return;\
  4425. };");
  4426.     break;
  4427.  
  4428.     case DRAW_RECTS:/*  used for userdraw */
  4429. fprintf(js_include_file,"\n<!-- draw rects -->\n\
  4430. 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){\
  4431. ctx.save();\
  4432. if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
  4433. if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
  4434. ctx.lineWidth = line_width;\
  4435. ctx.strokeStyle = \"rgba('+stroke_color+','+stroke_opacity+')\";\
  4436. if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];}};\
  4437. for(var p = 0 ; p < x_points.length ; p = p + 2){\
  4438.  ctx.beginPath();\
  4439.  ctx.rect(x_points[p],y_points[p],x_points[p+1]-x_points[p],y_points[p+1]-y_points[p]);\
  4440.  ctx.closePath();\
  4441.  if(use_filled == 1 ){ctx.fillStyle = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";ctx.fill();}\
  4442.  ctx.stroke();\
  4443. };\
  4444. ctx.restore();\
  4445. return;\
  4446. };");
  4447.     break;
  4448.  
  4449.     case DRAW_ROUNDRECTS:/*  used for userdraw */
  4450. fprintf(js_include_file,"\n<!-- draw round rects -->\n\
  4451. 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){\
  4452. ctx.save();\
  4453. if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
  4454. if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
  4455. if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
  4456. var x,y,w,h,r;\
  4457. for(var p = 0; p < x_points.length; p = p+2){\
  4458.  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);\
  4459.  ctx.beginPath();ctx.moveTo(x + r, y);\
  4460.  ctx.lineTo(x + w - r, y);\
  4461.  ctx.quadraticCurveTo(x + w, y, x + w, y + r);\
  4462.  ctx.lineTo(x + w, y + h - r);\
  4463.  ctx.quadraticCurveTo(x + w, y + h, x + w - r, y + h);\
  4464.  ctx.lineTo(x + r, y + h);\
  4465.  ctx.quadraticCurveTo(x, y + h, x, y + h - r);\
  4466.  ctx.lineTo(x, y + r);\
  4467.  ctx.quadraticCurveTo(x, y, x + r, y);\
  4468.  ctx.closePath();if( use_dashed == 1 ){ctx.setLineDash([dashtype0,dashtype1]);};\
  4469.  ctx.strokeStyle =\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  4470.  if( use_filled == 1 ){ctx.fillStyle =\"rgba(\"+fill_color+\",\"+fill_opacity+\")\";ctx.fill();};\
  4471.  ctx.stroke();\
  4472. }\
  4473. ctx.restore();\
  4474. };");
  4475.     break;
  4476.  
  4477.     case DRAW_ELLIPSES:/* not  used for userdraw */
  4478. fprintf(js_include_file,"\n<!-- draw ellipses -->\n\
  4479. 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){\
  4480. var obj;\
  4481. if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
  4482.  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
  4483. }\
  4484. else\
  4485. {\
  4486.  obj = create_canvas%d(canvas_type,xsize,ysize);\
  4487. };\
  4488. var ctx = obj.getContext(\"2d\");\
  4489. ctx.save();\
  4490. if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
  4491. if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
  4492. var cx,cy,ry,rx;\
  4493. ctx.lineWidth = line_width;\
  4494. if( use_filled == 1 ){ctx.fillStyle =\"rgba(\"+fill_color+\",\"+fill_opacity+\")\";};\
  4495. if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
  4496. ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  4497. for(var p=0;p< x_points.length;p = p+2){\
  4498.  ctx.beginPath();\
  4499.  cx = x_points[p];cy = y_points[p];rx = 0.25*x_points[p+1];ry = 0.25*y_points[p+1];\
  4500.  ctx.translate(cx - rx, cy - ry);\
  4501.  ctx.scale(rx, ry);\
  4502.  ctx.arc(1, 1, 1, 0, 2 * Math.PI, false);\
  4503.  if( use_filled == 1 ){ctx.fill();}\
  4504.  ctx.stroke();\
  4505. };\
  4506. ctx.restore();\
  4507. };",canvas_root_id,canvas_root_id,canvas_root_id);
  4508.     break;
  4509.  
  4510.     case DRAW_PATHS: /*  used for userdraw */
  4511. fprintf(js_include_file,"\n<!-- draw paths -->\n\
  4512. 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){\
  4513. ctx.save();\
  4514. if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
  4515. if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
  4516. ctx.lineWidth = line_width;\
  4517. ctx.lineJoin = \"round\";\
  4518. ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  4519. ctx.beginPath();\
  4520. ctx.moveTo(x_points[0],y_points[0]);\
  4521. for(var p = 1 ; p < x_points.length ; p++ ){ctx.lineTo(x_points[p],y_points[p]);}\
  4522. if(closed_path == 1){ctx.lineTo(x_points[0],y_points[0]);ctx.closePath();}\
  4523. if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
  4524. if(use_filled == 1){ctx.fillStyle = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";ctx.fill();}\
  4525. ctx.stroke();\
  4526. ctx.restore();\
  4527. return;\
  4528. };");
  4529.    
  4530.     break;
  4531.     case DRAW_ARROWS:/*  used for userdraw */
  4532. fprintf(js_include_file,"\n<!-- draw arrows -->\n\
  4533. 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){\
  4534. ctx.save();\
  4535. if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
  4536. if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
  4537. ctx.strokeStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  4538. ctx.fillStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  4539. ctx.lineWidth = line_width;\
  4540. if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
  4541. ctx.lineCap = \"round\";\
  4542. ctx.save();\
  4543. var x1,y1,x2,y2,dx,dy,len;\
  4544. for(var p = 0 ; p < x_points.length - 1 ; p = p +2){\
  4545.   ctx.restore();ctx.save();\
  4546.   x1 = x_points[p];y1 = y_points[p];x2 = x_points[p+1];y2 = y_points[p+1];dx = x2 - x1;dy = y2 - y1;\
  4547.   len = Math.sqrt(dx*dx+dy*dy);\
  4548.   ctx.translate(x2,y2);\
  4549.   ctx.rotate(Math.atan2(dy,dx));\
  4550.   ctx.lineCap = \"round\";\
  4551.   ctx.beginPath();\
  4552.   ctx.moveTo(0,0);\
  4553.   ctx.lineTo(-len,0);\
  4554.   ctx.closePath();\
  4555.   ctx.stroke();\
  4556.   ctx.beginPath();\
  4557.   ctx.moveTo(0,0);\
  4558.   ctx.lineTo(-1*arrow_head,-0.5*arrow_head);\
  4559.   ctx.lineTo(-1*arrow_head, 0.5*arrow_head);\
  4560.   ctx.closePath();\
  4561.   ctx.fill();\
  4562.   if( type == 2 ){\
  4563.     ctx.restore();\
  4564.     ctx.save();\
  4565.     ctx.translate(x1,y1);\
  4566.     ctx.rotate(Math.atan2(-dy,-dx));\
  4567.     ctx.beginPath();\
  4568.     ctx.moveTo(0,0);\
  4569.     ctx.lineTo(-1*arrow_head,-0.5*arrow_head);\
  4570.     ctx.lineTo(-1*arrow_head, 0.5*arrow_head);\
  4571.     ctx.closePath();\
  4572.     ctx.stroke();\
  4573.     ctx.fill();\
  4574.   }\
  4575.  }\
  4576.  ctx.restore();\
  4577.  return;\
  4578. };");
  4579.     break;
  4580.  
  4581.     case DRAW_VIDEO:/* not  used for userdraw */
  4582. fprintf(js_include_file,"\n<!-- draw video -->\n\
  4583. draw_video = function(canvas_root_id,x,y,w,h,URL){\
  4584. var canvas_div = document.getElementById(\"canvas_div\"+canvas_root_id);\
  4585. var video_div = document.createElement(\"div\");\
  4586. canvas_div.appendChild(video_div);\
  4587. video_div.style.position = \"absolute\";\
  4588. video_div.style.left = x+\"px\";\
  4589. video_div.style.top = y+\"px\";\
  4590. video_div.style.width = w+\"px\";\
  4591. video_div.style.height = h+\"px\";\
  4592. var video = document.createElement(\"video\");\
  4593. video_div.appendChild(video);\
  4594. video.style.width = w+\"px\";\
  4595. video.style.height = h+\"px\";\
  4596. video.autobuffer = true;\
  4597. video.controls = true;video.autoplay = false;\
  4598. var src = document.createElement(\"source\");\
  4599. src.type = \"video/mp4\";\
  4600. src.src = URL;\
  4601. video.appendChild(src);\
  4602. video.load();\
  4603. return;\
  4604. };");    
  4605.     break;
  4606.    
  4607.     case DRAW_AUDIO:/* not used for userdraw */
  4608. fprintf(js_include_file,"\n<!-- draw audio -->\n\
  4609. draw_audio = function(canvas_root_id,x,y,w,h,loop,visible,URL1,URL2){\
  4610. var canvas_div = document.getElementById(\"canvas_div\"+canvas_root_id);\
  4611. var audio_div = document.createElement(\"div\");\
  4612. canvas_div.appendChild(audio_div);\
  4613. audio_div.style.position = \"absolute\";\
  4614. audio_div.style.left = x+\"px\";\
  4615. audio_div.style.top = y+\"px\";\
  4616. audio_div.style.width = w+\"px\";\
  4617. audio_div.style.height = h+\"px\";\
  4618. var audio = document.createElement(\"audio\");\
  4619. audio_div.appendChild(audio);\
  4620. audio.setAttribute(\"style\",\"width:\"+w+\"px;height:\"+h+\"px\");\
  4621. audio.autobuffer = true;\
  4622. if(visible == 1 ){ audio.controls = true;audio.autoplay = false;}else{ audio.controls = false;audio.autoplay = true;}\
  4623. if(loop == 1 ){ audio.loop = true;}else{ audio.loop = false;}\
  4624. var src1 = document.createElement(\"source\");\
  4625. src1.type = \"audio/ogg\";\
  4626. src1.src = URL1;\
  4627. audio.appendChild(src1);\
  4628. var src2 = document.createElement(\"source\");\
  4629. src2.type = \"audio/mpeg\";\
  4630. src2.src = URL2;\
  4631. audio.appendChild(src2);\
  4632. audio.load();\
  4633. return;\
  4634. };");
  4635.     break;
  4636.    
  4637.     case DRAW_HTTP:/* not  used for userdraw */
  4638. fprintf(js_include_file,"\n<!-- draw http -->\n\
  4639. draw_http = function(canvas_root_id,x,y,w,h,URL){\
  4640. var canvas_div = document.getElementById(\"canvas_div\"+canvas_root_id);\
  4641. var http_div = document.createElement(\"div\");\
  4642. var iframe = document.createElement(\"iframe\");\
  4643. canvas_div.appendChild(http_div);\
  4644. http_div.appendChild(iframe);\
  4645. iframe.src = URL;\
  4646. iframe.setAttribute(\"width\",w);\
  4647. iframe.setAttribute(\"height\",h);\
  4648. return;\
  4649. };");
  4650.     break;
  4651.    
  4652.     case DRAW_XML:
  4653. fprintf(js_include_file,"\n<!-- draw xml -->\n\
  4654. draw_xml = function(canvas_root_id,x,y,w,h,mathml,onclick){\
  4655. var canvas_div = document.getElementById(\"canvas_div\"+canvas_root_id);\
  4656. var xml_div = document.createElement(\"div\");\
  4657. canvas_div.appendChild(xml_div);\
  4658. xml_div.innerHTML = mathml;\
  4659. if(onclick != 0){\
  4660.  xml_div.onclick = function(){\
  4661.   reply[0] = onclick;\
  4662.   alert(\"send \"+onclick+\" ?\");\
  4663.  };\
  4664. };\
  4665. xml_div.style.position = \"absolute\";\
  4666. xml_div.style.left = x+\"px\";\
  4667. xml_div.style.top = y+\"px\";\
  4668. xml_div.style.width = w+\"px\";\
  4669. xml_div.style.height = h+\"px\";\
  4670. return;\
  4671. };"
  4672. );
  4673.     break;
  4674.     case DRAW_SGRAPH:
  4675. /*
  4676.  xstart = given
  4677.  ystart = given
  4678.  sgraph(canvas_type,precision,xmajor,ymajor,xminor,yminor,majorcolor,minorcolor,fontfamily)
  4679. */
  4680. fprintf(js_include_file,"\n<!-- draw sgraph -->\n\
  4681. draw_sgraph = function(canvas_type,precision,xmajor,ymajor,xminor,yminor,majorcolor,minorcolor,fontfamily,opacity,font_size){\
  4682. 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);};\
  4683. var ctx = obj.getContext(\"2d\");\
  4684. ctx.font = fontfamily;\
  4685. var minor_opacity = 0.8*opacity;\
  4686. ctx.clearRect(0,0,xsize,ysize);\
  4687. var d_x =  1.8*font_size;\
  4688. var d_y =  ctx.measureText(\"+ymax+\").width;\
  4689. var dx = xsize / (xmax - xmin);\
  4690. var dy = ysize / (ymax - ymin);\
  4691. var zero_x = d_y + dx;\
  4692. var zero_y = ysize - dy - d_x;\
  4693. var snor_x;\
  4694. if( xstart != xmin){\
  4695.  snor_x = 0.1*xsize;\
  4696. }\
  4697. else\
  4698. {\
  4699.  snor_x = 0;\
  4700.  xstart = xmin;\
  4701. };\
  4702. ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
  4703. ctx.lineWidth = 2;\
  4704. ctx.beginPath();\
  4705. ctx.moveTo(xsize,zero_y);\
  4706. ctx.lineTo(zero_x,zero_y);\
  4707. ctx.lineTo(zero_x,0);\
  4708. ctx.stroke();\
  4709. ctx.closePath();\
  4710. ctx.beginPath();\
  4711. ctx.moveTo(zero_x,zero_y);\
  4712. ctx.lineTo(zero_x + 0.25*snor_x,zero_y - 0.1*snor_x);\
  4713. ctx.lineTo(zero_x + 0.5*snor_x,zero_y + 0.1*snor_x);\
  4714. ctx.lineTo(zero_x + 0.75*snor_x,zero_y - 0.1*snor_x);\
  4715. ctx.lineTo(zero_x + snor_x,zero_y);\
  4716. ctx.stroke();\
  4717. ctx.closePath();\
  4718. ctx.beginPath();\
  4719. var num = xstart;\
  4720. var flipflop = 1;\
  4721. var step_x = xmajor*(xsize - zero_x - snor_x)/(xmax - xstart);\
  4722. for(var x = zero_x+snor_x ; x < xsize;x = x + step_x){\
  4723.   if( 0.5*ctx.measureText(num).width > step_x ){\
  4724.    if( flipflop == 1 ){flipflop = 0;}else{flipflop = 1;};\
  4725.   };\
  4726.   if( flipflop == 1){\
  4727.    ctx.fillText(num,x - 0.5*ctx.measureText(num).width,zero_y+font_size);\
  4728.   }\
  4729.   else\
  4730.   {\
  4731.    ctx.fillText(num,x - 0.5*ctx.measureText(num).width,zero_y+2*font_size);\
  4732.   }\
  4733.   num = num + xmajor;\
  4734. };\
  4735. ctx.stroke();\
  4736. ctx.closePath();\
  4737. ctx.lineWidth = 1;\
  4738. ctx.beginPath();\
  4739. for(var x = zero_x+snor_x ; x < xsize;x = x + step_x){\
  4740.   ctx.moveTo(x,zero_y);\
  4741.   ctx.lineTo(x,0);\
  4742. };\
  4743. ctx.stroke();\
  4744. ctx.closePath();\
  4745. if( xminor > 1){\
  4746.  ctx.lineWidth = 0.5;\
  4747.  ctx.beginPath();\
  4748.  ctx.strokeStyle = \"rgba(\"+minorcolor+\",\"+minor_opacity+\")\";\
  4749.  var minor_step_x = step_x / xminor;\
  4750.  var nx;\
  4751.  for(var x = zero_x+snor_x; x < xsize;x = x + step_x){\
  4752.    num = 1;\
  4753.    for(var p = 1 ; p < xminor ; p++){\
  4754.     nx = x + num*minor_step_x;\
  4755.     ctx.moveTo(nx,zero_y);\
  4756.     ctx.lineTo(nx,0);\
  4757.     num++;\
  4758.    };\
  4759.  };\
  4760.  ctx.stroke();\
  4761.  ctx.closePath();\
  4762.  ctx.beginPath();\
  4763.  ctx.lineWidth = 2;\
  4764.  ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
  4765.  for(var x = zero_x+snor_x ; x < xsize;x = x + step_x){\
  4766.   ctx.moveTo(x,zero_y);ctx.lineTo(x,zero_y - 12);\
  4767.  };\
  4768.  for(var x = zero_x+snor_x ; x < xsize;x = x + minor_step_x){\
  4769.   ctx.moveTo(x,zero_y);ctx.lineTo(x,zero_y - 6);\
  4770.  };\
  4771.  ctx.stroke();\
  4772.  ctx.closePath();\
  4773.  ctx.lineWidth = 0.5;\
  4774. };\
  4775. xmin = xstart - (xmajor*(zero_x+snor_x)/step_x);\
  4776. if( ystart != ymin){\
  4777.  snor_y = 0.1*ysize;\
  4778. }\
  4779. else\
  4780. {\
  4781.  snor_y = 0;\
  4782.  ystart = ymin;\
  4783. };\
  4784. ctx.lineWidth = 2;\
  4785. ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
  4786. ctx.beginPath();\
  4787. ctx.moveTo(zero_x,zero_y);\
  4788. ctx.lineTo(zero_x - 0.1*snor_y,zero_y - 0.25*snor_y);\
  4789. ctx.lineTo(zero_x + 0.1*snor_y,zero_y - 0.5*snor_y);\
  4790. ctx.lineTo(zero_x - 0.1*snor_y,zero_y - 0.75*snor_y);\
  4791. ctx.lineTo(zero_x,zero_y - snor_y);\
  4792. ctx.stroke();\
  4793. ctx.closePath();\
  4794. ctx.beginPath();\
  4795. ctx.lineWidth = 1;\
  4796. num = ystart;\
  4797. var step_y = ymajor*(zero_y - snor_y)/(ymax - ystart);\
  4798. for(var y = zero_y - snor_y ; y > 0; y = y - step_y){\
  4799.  ctx.moveTo(zero_x,y);\
  4800.  ctx.lineTo(xsize,y);\
  4801.  ctx.fillText(num,zero_x - ctx.measureText(num+\" \").width,parseInt(y+0.2*font_size));\
  4802.  num = num + ymajor;\
  4803. };\
  4804. ctx.stroke();\
  4805. ctx.closePath();\
  4806. if( yminor > 1){\
  4807.  ctx.lineWidth = 0.5;\
  4808.  ctx.beginPath();\
  4809.  ctx.strokeStyle = \"rgba(\"+minorcolor+\",\"+minor_opacity+\")\";\
  4810.  var minor_step_y = step_y / yminor;\
  4811.  var ny;\
  4812.  for(var y = 0 ; y < zero_y - snor_y ;y = y + step_y){\
  4813.   num = 1;\
  4814.   for(var p = 1 ;p < yminor;p++){\
  4815.     ny = y + num*minor_step_y;\
  4816.     ctx.moveTo(zero_x,ny);\
  4817.     ctx.lineTo(xsize,ny);\
  4818.     num++;\
  4819.    };\
  4820.  };\
  4821.  ctx.stroke();\
  4822.  ctx.closePath();\
  4823.  ctx.lineWidth = 2;\
  4824.  ctx.beginPath();\
  4825.  ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
  4826.  for(var y = zero_y - snor_y ; y > 0 ;y = y - step_y){\
  4827.   ctx.moveTo(zero_x,y);\
  4828.   ctx.lineTo(zero_x+12,y);\
  4829.  };\
  4830.  for(var y = zero_y - snor_y ; y > 0 ;y = y - minor_step_y){\
  4831.   ctx.moveTo(zero_x,y);\
  4832.   ctx.lineTo(zero_x+6,y);\
  4833.  };\
  4834.  ctx.stroke();\
  4835.  ctx.closePath();\
  4836. };\
  4837. ymin = ystart - (ymajor*(ysize - zero_y + snor_y)/step_y);\
  4838. if( typeof legend%d  !== 'undefined' ){\
  4839.  ctx.globalAlpha = 1.0;\
  4840.  var y_offset = 2*font_size;\
  4841.  var txt;var txt_size;\
  4842.  var x_offset = xsize - 2*font_size;\
  4843.  var l_length = legend%d.length;var barcolor = new Array();\
  4844.  if( typeof legendcolors%d !== 'undefined' ){\
  4845.   for(var p = 0 ; p < l_length ; p++){\
  4846.    barcolor[p] = legendcolors%d[p];\
  4847.   };\
  4848.  }else{\
  4849.   if( barcolor.length == 0 ){\
  4850.    for(var p = 0 ; p < l_length ; p++){\
  4851.     barcolor[p] = stroke_color;\
  4852.    };\
  4853.   };\
  4854.  };\
  4855.  for(var p = 0; p < l_length; p++){\
  4856.   ctx.fillStyle = barcolor[p];\
  4857.   txt = legend%d[p];\
  4858.   txt_size = ctx.measureText(txt).width;\
  4859.   ctx.fillText(legend%d[p],x_offset - txt_size, y_offset);\
  4860.   y_offset = parseInt(y_offset + 1.5*font_size);\
  4861.  };\
  4862. };\
  4863. if( typeof xaxislabel !== 'undefined' ){\
  4864.   ctx.fillStyle = \'#000000\';\
  4865.   var txt_size = ctx.measureText(xaxislabel).width + 4 ;\
  4866.   ctx.fillText(xaxislabel,xsize - txt_size, zero_y - 7);\
  4867. };\
  4868. if( typeof yaxislabel !== 'undefined'){\
  4869.   ctx.save();\
  4870.   ctx.fillStyle = \'#000000\';\
  4871.   var txt_size = ctx.measureText(yaxislabel).width;\
  4872.   ctx.translate(zero_x+8 + font_size,txt_size+font_size);\
  4873.   ctx.rotate(-0.5*Math.PI);\
  4874.   ctx.fillText(yaxislabel,0,0);\
  4875.   ctx.save();\
  4876. };\
  4877. };\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);
  4878.     break;
  4879.  
  4880.     case DRAW_GRID:/* not used for userdraw */
  4881. fprintf(js_include_file,"\n<!-- draw grid -->\n\
  4882. 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){\
  4883. var obj;\
  4884. if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
  4885. obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
  4886. }\
  4887. else\
  4888. {\
  4889. obj = create_canvas%d(canvas_type,xsize,ysize);\
  4890. };\
  4891. var ctx = obj.getContext(\"2d\");\
  4892. ctx.clearRect(0,0,xsize,ysize);\
  4893. if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
  4894. ctx.save();\
  4895. if( use_translate == 1 ){ctx.translate(vector[0],vector[1]);};\
  4896. if( use_rotate == 1 ){ctx.translate(x2px(0),y2px(0));ctx.rotate(angle*Math.PI/180);ctx.translate(-1*(x2px(0)),-1*(y2px(0)));};\
  4897. var stroke_color = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  4898. ctx.fillStyle = \"rgba(\"+font_color+\",\"+1.0+\")\";\
  4899. var axis_color = \"rgba(\"+axis_color+\",\"+stroke_opacity+\")\";\
  4900. ctx.font = font_family;\
  4901. var xstep = xsize*xmajor/(xmax - xmin);\
  4902. var ystep = ysize*ymajor/(ymax - ymin);\
  4903. var x2step = xstep / xminor;\
  4904. var y2step = ystep / yminor;\
  4905. var zero_x;var zero_y;var f_x;var f_y;\
  4906. if(xmin < 0 ){zero_x = x2px(0);f_x = 1;}else{zero_x = x2px(xmin);f_x = -1;}\
  4907. if(ymin < 0 ){zero_y = y2px(0);f_y = 1;}else{zero_y = y2px(ymin);f_y = -1;}\
  4908. ctx.beginPath();\
  4909. ctx.lineWidth = line_width;\
  4910. ctx.strokeStyle = stroke_color;\
  4911. for(var p = zero_x ; p < xsize; p = p + xstep){\
  4912. ctx.moveTo(p,0);\
  4913. ctx.lineTo(p,ysize);\
  4914. };\
  4915. for(var p = zero_x ; p > 0; p = p - xstep){\
  4916. ctx.moveTo(p,0);\
  4917. ctx.lineTo(p,ysize);\
  4918. };\
  4919. for(var p = zero_y ; p < ysize; p = p + ystep){\
  4920. ctx.moveTo(0,p);\
  4921. ctx.lineTo(xsize,p);\
  4922. };\
  4923. for(var p = zero_y ; p > 0; p = p - ystep){\
  4924. ctx.moveTo(0,p);\
  4925. ctx.lineTo(xsize,p);\
  4926. };\
  4927. if( typeof xaxislabel !== 'undefined' ){\
  4928. ctx.save();\
  4929. ctx.font = \"italic \"+font_size+\"px Ariel\";\
  4930. var corr =  ctx.measureText(xaxislabel).width;\
  4931. ctx.fillText(xaxislabel,xsize - 1.5*corr,zero_y - tics_length - 0.4*font_size);\
  4932. ctx.restore();\
  4933. };\
  4934. if( typeof yaxislabel !== 'undefined' ){\
  4935. ctx.save();\
  4936. ctx.font = \"italic \"+font_size+\"px Ariel\";\
  4937. corr =  ctx.measureText(yaxislabel).width;\
  4938. ctx.translate(zero_x+tics_length + font_size,corr+font_size);\
  4939. ctx.rotate(-0.5*Math.PI);\
  4940. ctx.fillText(yaxislabel,0,0);\
  4941. ctx.restore();\
  4942. };\
  4943. ctx.stroke();\
  4944. ctx.closePath();\
  4945. if( use_axis == 1 ){\
  4946. ctx.beginPath();\
  4947. ctx.strokeStyle = stroke_color;\
  4948. ctx.lineWidth = 0.6*line_width;\
  4949. for(var p = zero_x ; p < xsize; p = p + x2step){\
  4950.  ctx.moveTo(p,0);\
  4951.  ctx.lineTo(p,ysize);\
  4952. };\
  4953. for(var p = zero_x ; p > 0; p = p - x2step){\
  4954.  ctx.moveTo(p,0);\
  4955.  ctx.lineTo(p,ysize);\
  4956. };\
  4957. for(var p = zero_y ; p < ysize; p = p + y2step){\
  4958.  ctx.moveTo(0,p);\
  4959.  ctx.lineTo(xsize,p);\
  4960. };\
  4961. for(var p = zero_y ; p > 0; p = p - y2step){\
  4962.  ctx.moveTo(0,p);\
  4963.  ctx.lineTo(xsize,p);\
  4964. };\
  4965. ctx.stroke();\
  4966. ctx.closePath();\
  4967. ctx.beginPath();\
  4968. ctx.lineWidth = 2*line_width;\
  4969. ctx.strokeStyle = axis_color;\
  4970. ctx.moveTo(0,zero_y);\
  4971. ctx.lineTo(xsize,zero_y);\
  4972. ctx.moveTo(zero_x,0);\
  4973. ctx.lineTo(zero_x,ysize);\
  4974. ctx.stroke();\
  4975. ctx.closePath();\
  4976. ctx.lineWidth = line_width+0.5;\
  4977. ctx.beginPath();\
  4978. for(var p = zero_x ; p < xsize; p = p + xstep){\
  4979.  ctx.moveTo(p,zero_y-tics_length);\
  4980.  ctx.lineTo(p,zero_y+tics_length);\
  4981. };\
  4982. for(var p = zero_x ; p > 0; p = p - xstep){\
  4983.  ctx.moveTo(p,zero_y-tics_length);\
  4984.  ctx.lineTo(p,zero_y+tics_length);\
  4985. };\
  4986. for(var p = zero_y ; p < ysize; p = p + ystep){\
  4987.  ctx.moveTo(zero_x-tics_length,p);\
  4988.  ctx.lineTo(zero_x+tics_length,p);\
  4989. };\
  4990. for(var p = zero_y ; p > 0; p = p - ystep){\
  4991.  ctx.moveTo(zero_x-tics_length,p);\
  4992.  ctx.lineTo(zero_x+tics_length,p);\
  4993. };\
  4994. for(var p = zero_x ; p < xsize; p = p + x2step){\
  4995.  ctx.moveTo(p,zero_y-0.5*tics_length);\
  4996.  ctx.lineTo(p,zero_y+0.5*tics_length);\
  4997. };\
  4998. for(var p = zero_x ; p > 0; p = p - x2step){\
  4999.  ctx.moveTo(p,zero_y-0.5*tics_length);\
  5000.  ctx.lineTo(p,zero_y+0.5*tics_length);\
  5001. };\
  5002. for(var p = zero_y ; p < ysize; p = p + y2step){\
  5003.  ctx.moveTo(zero_x-0.5*tics_length,p);\
  5004.  ctx.lineTo(zero_x+0.5*tics_length,p);\
  5005. };\
  5006. for(var p = zero_y ; p > 0; p = p - y2step){\
  5007.  ctx.moveTo(zero_x-0.5*tics_length,p);\
  5008.  ctx.lineTo(zero_x+0.5*tics_length,p);\
  5009. };\
  5010. ctx.stroke();\
  5011. ctx.closePath();\
  5012. if( use_axis_numbering == 1 ){\
  5013.  var shift = zero_y+2*font_size;var flip=0;var skip=0;var corr;var cnt;var disp_cnt;var prec;\
  5014.  if( x_strings != null ){\
  5015.   var f = 1.4;\
  5016.   var len = x_strings.length;if((len/2+0.5)%%2 == 0){ alert(\"xaxis number unpaired:  text missing ! \");return;};\
  5017.   for(var p = 0 ; p < len ; p = p+2){\
  5018.     var x_nums = x2px(eval(x_strings[p]));\
  5019.     var x_text = x_strings[p+1];\
  5020.     corr = ctx.measureText(x_text).width;\
  5021.     skip = 1.2*corr/xstep;\
  5022.     if( zero_y+2*font_size > ysize ){shift = ysize - 2*font_size;};\
  5023.     if( skip > 1 ){if(flip == 0 ){flip = 1; shift = shift + font_size;}else{flip = 0; shift = shift - font_size;}};\
  5024.     ctx.fillText(x_text,parseInt(x_nums-0.5*corr),shift);\
  5025.   }\
  5026.  }\
  5027.  else\
  5028.  {\
  5029.   corr=0;skip = 1;cnt = px2x(zero_x);\
  5030.   prec = Math.log(precision)/(Math.log(10));\
  5031.   for( var p = zero_x ; p < xsize ; p = p+xstep){\
  5032.    if(skip == 0 ){\
  5033.      disp_cnt = cnt.toFixed(prec);\
  5034.      corr = ctx.measureText(disp_cnt).width;\
  5035.      skip = parseInt(1.2*corr/xstep);\
  5036.      ctx.fillText(disp_cnt,p-0.5*corr,parseInt(zero_y+(1.4*f_x*font_size)));\
  5037.    }\
  5038.    else\
  5039.    {\
  5040.     skip--;\
  5041.    };\
  5042.    cnt = cnt + xmajor;\
  5043.   };\
  5044.   cnt = px2x(zero_x);skip = 1;\
  5045.   for( var p = zero_x ; p > 0 ; p = p-xstep){\
  5046.    if(skip == 0 ){\
  5047.     disp_cnt = cnt.toFixed(prec);\
  5048.     corr = ctx.measureText(disp_cnt).width;\
  5049.     skip = parseInt(1.2*corr/xstep);\
  5050.     ctx.fillText(disp_cnt,p-0.5*corr,parseInt(zero_y+(1.4*f_x*font_size)));\
  5051.    }\
  5052.    else\
  5053.    {\
  5054.     skip--;\
  5055.    };\
  5056.    cnt = cnt - xmajor;\
  5057.   };\
  5058.  };\
  5059.  if( y_strings != null ){\
  5060.   var len = y_strings.length;if((len/2+0.5)%%2 == 0){ alert(\"yaxis number unpaired:  text missing ! \");return;};\
  5061.   for(var p = 0 ; p < len ; p = p+2){\
  5062.    var y_nums = y2px(eval(y_strings[p]));\
  5063.    var y_text = y_strings[p+1];\
  5064.    var f = 1.4;\
  5065.    corr = 2 + tics_length + ctx.measureText(y_text).width;\
  5066.    if( corr > zero_x){corr = parseInt(zero_x+2); }\
  5067.    ctx.fillText(y_text,zero_x - corr,y_nums);\
  5068.   };\
  5069.  }\
  5070.  else\
  5071.  {\
  5072.   corr = 0;cnt = px2y(zero_y);skip = 1;\
  5073.   for( var p = zero_y ; p < ysize ; p = p+ystep){\
  5074.    if(skip == 0 ){\
  5075.     skip = parseInt(1.4*font_size/ystep);\
  5076.     disp_cnt = cnt.toFixed(prec);\
  5077.     if(f_y == 1){corr = 2 + tics_length + ctx.measureText(disp_cnt).width;}\
  5078.     ctx.fillText(disp_cnt,parseInt(zero_x - corr),parseInt(p+(0.4*font_size)));\
  5079.    }\
  5080.    else\
  5081.    {\
  5082.     skip--;\
  5083.    };\
  5084.    cnt = cnt - ymajor;\
  5085.   }\
  5086.   corr = 0;cnt = px2y(zero_y);skip = 1;\
  5087.   for( var p = zero_y ; p > 0 ; p = p-ystep){\
  5088.    if(skip == 0 ){\
  5089.     skip = parseInt(1.4*font_size/ystep);\
  5090.     disp_cnt = cnt.toFixed(prec);\
  5091.     if(f_y == 1){corr = 2 + tics_length + ctx.measureText(disp_cnt).width;}\
  5092.     ctx.fillText(disp_cnt,parseInt(zero_x - corr),parseInt(p+(0.4*font_size)));\
  5093.    }\
  5094.    else\
  5095.    {\
  5096.     skip--;\
  5097.    };\
  5098.    cnt = cnt + ymajor;\
  5099.   }\
  5100.  };\
  5101. };\
  5102. ctx.strokeStyle = stroke_color;\
  5103. ctx.lineWidth = 2;\
  5104. ctx.beginPath();\
  5105. ctx.rect(0,0,xsize,ysize);\
  5106. ctx.closePath();\
  5107. ctx.stroke();\
  5108. };\
  5109. if( typeof linegraph_0 !== 'undefined' ){\
  5110. ctx.restore();\
  5111. ctx.save();\
  5112. ctx.globalAlpha = 1.0;\
  5113. var i = 0;\
  5114. var line_name = eval('linegraph_'+i);\
  5115. while ( typeof line_name !== 'undefined' ){\
  5116.  ctx.strokeStyle = 'rgba('+line_name[0]+','+stroke_opacity+')';\
  5117.  ctx.lineWidth = parseInt(line_name[1]);\
  5118.  if(line_name[2] == \"1\"){\
  5119.   var d1 = parseInt(line_name[3]);\
  5120.   var d2 = parseInt(line_name[4]);\
  5121.   if(ctx.setLineDash){ ctx.setLineDash(d1,d2); } else { ctx.mozDash = [d1,d2];};\
  5122.  }\
  5123.  else\
  5124.  {\
  5125.  if(ctx.setLineDash){ctx.setLineDash = null;}\
  5126.  if(ctx.mozDash){ctx.mozDash = null;}\
  5127.  };\
  5128.  var data_x = new Array();\
  5129.  var data_y = new Array();\
  5130.  var lb = line_name.length;\
  5131.  var idx = 0;\
  5132.  for( var p = 5 ; p < lb ; p = p + 2 ){\
  5133.   data_x[idx] = x2px(line_name[p]);\
  5134.   data_y[idx] = y2px(line_name[p+1]);\
  5135.   idx++;\
  5136.  };\
  5137.  for( var p = 0; p < idx ; p++){\
  5138.   ctx.beginPath();\
  5139.   ctx.moveTo(data_x[p],data_y[p]);\
  5140.   ctx.lineTo(data_x[p+1],data_y[p+1]);\
  5141.   ctx.stroke();\
  5142.   ctx.closePath();\
  5143.  };\
  5144.  i++;\
  5145.  try{ line_name = eval('linegraph_'+i); }catch(e){ break; }\
  5146. };\
  5147. };\
  5148. var barcolor = new Array();\
  5149. if( typeof barchart%d  !== 'undefined' ){\
  5150. ctx.restore();\
  5151. ctx.save();\
  5152. ctx.globalAlpha = 1.0;\
  5153. var bar_x = new Array();\
  5154. var bar_y = new Array();\
  5155. var lb = barchart%d.length;\
  5156. var idx = 0;\
  5157. for( var p = 0 ; p < lb ; p = p + 3 ){\
  5158.  bar_x[idx] = x2px(barchart%d[p]);\
  5159.  bar_y[idx] = y2px(barchart%d[p+1]);\
  5160.  barcolor[idx] = barchart%d[p+2];\
  5161.  idx++;\
  5162. };\
  5163. var dx = parseInt(0.6*xstep);\
  5164. ctx.globalAlpha = fill_opacity;\
  5165. for( var p = 0; p < idx ; p++ ){\
  5166.  ctx.beginPath();\
  5167.  ctx.strokeStyle = barcolor[p];\
  5168.  ctx.fillStyle = barcolor[p];\
  5169.  ctx.rect(bar_x[p]-0.5*dx,bar_y[p],dx,zero_y - bar_y[p]);\
  5170.  ctx.fill();\
  5171.  ctx.stroke();\
  5172.  ctx.closePath();\
  5173. };\
  5174. };\
  5175. if( typeof legend%d  !== 'undefined' ){\
  5176. ctx.globalAlpha = 1.0;\
  5177. ctx.font = \"bold \"+font_size+\"px Ariel\";\
  5178. var y_offset = 2*font_size;\
  5179. var txt;var txt_size;\
  5180. var x_offset = xsize - 2*font_size;\
  5181. var l_length = legend%d.length;\
  5182. if( typeof legendcolors%d !== 'undefined' ){\
  5183.  for(var p = 0 ; p < l_length ; p++){\
  5184.    barcolor[p] = legendcolors%d[p];\
  5185.  };\
  5186. }else{\
  5187.  if( barcolor.length == 0 ){\
  5188.   for(var p = 0 ; p < l_length ; p++){\
  5189.    barcolor[p] = stroke_color;\
  5190.   };\
  5191.  };\
  5192. };\
  5193. for(var p = 0; p < l_length; p++){\
  5194.  ctx.fillStyle = barcolor[p];\
  5195.  txt = legend%d[p];\
  5196.  txt_size = ctx.measureText(txt).width;\
  5197.  ctx.fillText(legend%d[p],x_offset - txt_size, y_offset);\
  5198.  y_offset = parseInt(y_offset + 1.5*font_size);\
  5199. };\
  5200. };\
  5201. ctx.restore();\
  5202. return;\
  5203. };",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);
  5204.     break;
  5205.    
  5206.     case DRAW_PIECHART:
  5207. fprintf(js_include_file,"\n<!-- draw piechars -->\n\
  5208. function draw_piechart(canvas_type,x_center,y_center,radius, data_color_list,fill_opacity,font_size,font_family){\
  5209. if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
  5210.  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
  5211. }\
  5212. else\
  5213. {\
  5214.  obj = create_canvas%d(canvas_type,xsize,ysize);\
  5215. };\
  5216. var ld = data_color_list.length;\
  5217. var sum = 0;\
  5218. var idx = 0;\
  5219. var colors = new Array();\
  5220. var data = new Array();\
  5221. for(var p = 0;p < ld; p = p + 2){\
  5222.  data[idx] = parseFloat(data_color_list[p]);\
  5223.  sum = sum + data[idx];\
  5224.  colors[idx] = data_color_list[p+1];\
  5225.  idx++;\
  5226. };\
  5227. var ctx = obj.getContext(\"2d\");\
  5228. ctx.save();\
  5229. var angle;\
  5230. var angle_end = 0;\
  5231. var offset = Math.PI / 2;\
  5232. ctx.globalAlpha = fill_opacity;\
  5233. for(var p=0; p < idx; p++){\
  5234.  ctx.beginPath();\
  5235.  ctx.fillStyle = colors[p];\
  5236.  ctx.moveTo(x_center,y_center);\
  5237.  angle = Math.PI * (2 * data[p] / sum);\
  5238.  ctx.arc(x_center,y_center, radius, angle_end - offset, angle_end + angle - offset, false);\
  5239.  ctx.lineTo(x_center, y_center);\
  5240.  ctx.fill();\
  5241.  ctx.closePath();\
  5242.  angle_end  = angle_end + angle;\
  5243. };\
  5244. if( typeof legend%d  !== 'undefined' ){\
  5245.  ctx.globalAlpha = 1.0;\
  5246.  ctx.font = font_size+\"px \"+font_family;\
  5247.  var y_offset = font_size; \
  5248.  var x_offset = 0;\
  5249.  var txt;var txt_size;\
  5250.  for(var p = 0; p < idx; p++){\
  5251.   ctx.fillStyle = colors[p];\
  5252.   txt = legend%d[p];\
  5253.   txt_size = ctx.measureText(txt).width;\
  5254.   if( x_center + radius + txt_size > xsize ){ x_offset =  x_center + radius + txt_size - xsize;} else { x_offset = 0; };\
  5255.   ctx.fillText(legend%d[p],x_center + radius - x_offset, y_center - radius + y_offset);\
  5256.   y_offset = parseInt(y_offset + 1.5*font_size);\
  5257.  };\
  5258. };\
  5259. ctx.restore();\
  5260. };",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
  5261.    
  5262.     break;
  5263.     case DRAW_ARCS:
  5264. fprintf(js_include_file,"\n<!-- draw arcs -->\n\
  5265. 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){\
  5266. var obj;\
  5267. if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
  5268.  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
  5269. }\
  5270. else\
  5271. {\
  5272.  obj = create_canvas%d(canvas_type,xsize,ysize);\
  5273. };\
  5274. var ctx = obj.getContext(\"2d\");\
  5275. ctx.save();\
  5276. if( use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{if(ctx.mozDash){ ctx.mozDash = [dashtype0,dashtype1];};};};\
  5277. if( use_translate == 1 ){ctx.translate(vector[0],vector[1]);};\
  5278. if( use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);};\
  5279. if(end < start){var tmp = end;end = start;start=tmp;};\
  5280. start=360-start;\
  5281. end=360-end;\
  5282. ctx.lineWidth = line_width;\
  5283. ctx.strokeStyle =  \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  5284. if( use_filled == 1 ){\
  5285.  ctx.beginPath();\
  5286.  ctx.fillStyle = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";\
  5287.  var x1 = xc + r*Math.cos(Math.PI*start/180);\
  5288.  var y1 = yc + r*Math.sin(Math.PI*start/180);\
  5289.  var x2 = xc + r*Math.cos(Math.PI*end/180);\
  5290.  var y2 = yc + r*Math.sin(Math.PI*end/180);\
  5291.  ctx.beginPath();\
  5292.  ctx.moveTo(x1,y1);\
  5293.  ctx.lineTo(xc,yc);\
  5294.  ctx.moveTo(xc,yc);\
  5295.  ctx.lineTo(x2,y2);\
  5296.  ctx.closePath();\
  5297.  ctx.arc(xc, yc, r, start*(Math.PI / 180), end*(Math.PI / 180),true);\
  5298.  ctx.fill();\
  5299.  ctx.stroke();\
  5300. }\
  5301. else\
  5302. {\
  5303.    ctx.beginPath();\
  5304.    ctx.arc(xc, yc, r, start*(Math.PI / 180), end*(Math.PI / 180),true);\
  5305.    ctx.stroke();\
  5306.    ctx.closePath();\
  5307. }\
  5308. ctx.restore();\
  5309. };",canvas_root_id,canvas_root_id,canvas_root_id);
  5310.    
  5311.     break;
  5312.     case DRAW_TEXTS:
  5313. fprintf(js_include_file,"\n<!-- draw text -->\n\
  5314. draw_text = function(canvas_type,x,y,font_size,font_family,stroke_color,stroke_opacity,angle2,text,use_rotate,angle,use_translate,vector){\
  5315.  var obj;\
  5316.  if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
  5317.   obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
  5318.  }\
  5319.  else\
  5320.  {\
  5321.   obj = create_canvas%d(canvas_type,xsize,ysize);\
  5322.  };\
  5323.  var ctx = obj.getContext(\"2d\");\
  5324.  if(angle2 == 0 && angle != 0){\
  5325.   ctx.save();\
  5326.   if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
  5327.   if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
  5328.  };\
  5329.  if( font_family.indexOf('px') != null ){\
  5330.   ctx.font = font_family;\
  5331.  }\
  5332.  else\
  5333.  {\
  5334.   ctx.font = \"+font_size+'px '+font_family \";\
  5335.  };\
  5336.  ctx.fillStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  5337.  if(angle2 != 0){\
  5338.   ctx.save();\
  5339.   ctx.translate(x,y);\
  5340.   ctx.rotate((360-angle2)*(Math.PI / 180));\
  5341.   ctx.fillText(text,0,0);\
  5342.   ctx.restore();\
  5343.  }else{ctx.fillText(text,x,y);};\
  5344. ctx.restore();\
  5345. return;\
  5346. };",canvas_root_id,canvas_root_id,canvas_root_id);
  5347.    
  5348.     break;
  5349.     case DRAW_CURVE:
  5350. fprintf(js_include_file,"\n<!-- draw curve -->\n\
  5351. 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){\
  5352. var obj;\
  5353. if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
  5354.  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
  5355. }\
  5356. else\
  5357. {\
  5358.  obj = create_canvas%d(canvas_type,xsize,ysize);\
  5359. };\
  5360. var ctx = obj.getContext(\"2d\");\
  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. ctx.beginPath();ctx.lineWidth = line_width;\
  5365. if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
  5366. ctx.strokeStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  5367. ctx.moveTo(x2px(x_points[0]),y2px(y_points[0]));\
  5368. for(var p = 1 ; p < x_points.length ; p++){\
  5369.  if( y2px(y_points[p]) > -5 && y2px(y_points[p]) < ysize+5 ){\
  5370.  ctx.lineTo(x2px(x_points[p]),y2px(y_points[p]));\
  5371.  }\
  5372.  else\
  5373.  {\
  5374.   ctx.stroke();\
  5375.   ctx.beginPath();\
  5376.   p++;\
  5377.   ctx.moveTo(x2px(x_points[p]),y2px(y_points[p]));\
  5378.  };\
  5379. };\
  5380. ctx.stroke();\
  5381. ctx.restore();\
  5382. };",canvas_root_id,canvas_root_id,canvas_root_id);
  5383.     break;
  5384.    
  5385.     case DRAW_INPUTS:
  5386. fprintf(js_include_file,"\n<!-- draw input fields -->\n\
  5387. draw_inputs = function(root_id,input_cnt,x,y,size,readonly,style,value){\
  5388. var canvas_div = document.getElementById(\"canvas_div\"+root_id);\
  5389. var input = document.createElement(\"input\");\
  5390. input.setAttribute(\"id\",\"canvas_input\"+input_cnt);\
  5391. input.setAttribute(\"style\",\"position:absolute;left:\"+x+\"px;top:\"+y+\"px;\"+style);\
  5392. input.setAttribute(\"size\",size);\
  5393. input.setAttribute(\"value\",value);\
  5394. if( readonly == 0 ){ input.setAttribute(\"readonly\",\"readonly\");};\
  5395. canvas_div.appendChild(input);};");
  5396.     break;
  5397.    
  5398.     case DRAW_TEXTAREAS:
  5399. fprintf(js_include_file,"\n<!-- draw text area inputfields -->\n\
  5400. draw_textareas = function(root_id,input_cnt,x,y,cols,rows,readonly,style,value){\
  5401. var canvas_div = document.getElementById(\"canvas_div\"+root_id);\
  5402. var textarea = document.createElement(\"textarea\");\
  5403. textarea.setAttribute(\"id\",\"canvas_input\"+input_cnt);\
  5404. textarea.setAttribute(\"style\",\"position:absolute;left:\"+x+\"px;top:\"+y+\"px;\"+style);\
  5405. textarea.setAttribute(\"cols\",cols);\
  5406. textarea.setAttribute(\"rows\",rows);\
  5407. textarea.innerHTML = value;\
  5408. canvas_div.appendChild(textarea);};");
  5409.     break;
  5410.    
  5411. case DRAW_PIXELS:
  5412. fprintf(js_include_file,"\n<!-- draw pixel -->\n\
  5413. draw_setpixel = function(x,y,color,opacity,pixelsize){\
  5414. var canvas = create_canvas%d(10,xsize,ysize);\
  5415. var d = 0.5*pixelsize;\
  5416. var ctx = canvas.getContext(\"2d\");\
  5417. ctx.fillStyle = \"rgba(\"+color+\",\"+opacity+\")\";\
  5418. ctx.clearRect(0,0,xsize,ysize);\
  5419. for(var p=0; p<x.length;p++){\
  5420.  ctx.fillRect( x2px(x[p]) - d, y2px(y[p]) - d , pixelsize, pixelsize );\
  5421. };\
  5422. ctx.fill();ctx.stroke();\
  5423. };",canvas_root_id);
  5424. break;
  5425.  
  5426. case DRAW_CLOCK:
  5427. fprintf(js_include_file,"\n<!-- begin command clock -->\n\
  5428. var clock_canvas = create_canvas%d(%d,xsize,ysize);\
  5429. var clock_ctx = clock_canvas.getContext(\"2d\");\
  5430. var clock = function(xc,yc,radius,H,M,S,type,interaction,h_color,m_color,s_color,bg_color,fg_color){\
  5431. clock_ctx.save();\
  5432. this.type = type || 0;\
  5433. this.interaction = interaction || 0;\
  5434. this.H = H || parseInt(110*(Math.random()));\
  5435. this.M = M || parseInt(590*(Math.random()));\
  5436. this.S = S || parseInt(590*(Math.random()));\
  5437. this.xc = xc || xsize/2;\
  5438. this.yc = yc || ysize/2;\
  5439. this.radius = radius || xsize/4;\
  5440. var font_size = parseInt(0.2*this.radius);\
  5441. this.H_color = h_color || \"blue\";\
  5442. this.M_color = m_color || \"blue\";\
  5443. this.S_color = s_color || \"blue\";\
  5444. this.fg_color = fg_color || \"red\";\
  5445. this.bg_color = bg_color || \"white\";\
  5446. clock_ctx.translate(this.xc,this.yc);\
  5447. clock_ctx.beginPath();\
  5448. clock_ctx.arc(0,0,this.radius,0,2*Math.PI,false);\
  5449. clock_ctx.fillStyle = this.bg_color;\
  5450. clock_ctx.fill();\
  5451. clock_ctx.closePath();\
  5452. clock_ctx.beginPath();\
  5453. clock_ctx.font = font_size+\"px Arial\";\
  5454. clock_ctx.fillStyle = this.fg_color;\
  5455. clock_ctx.textAlign = \"center\";\
  5456. clock_ctx.textBaseline = 'middle';\
  5457. var angle;var x1,y1,x2,y2;\
  5458. var angle_cos;var angle_sin;\
  5459. switch(type){\
  5460. case 0:clock_ctx.beginPath();\
  5461. for(var p = 1; p <= 12 ; p++){\
  5462.  angle_cos = this.radius*(Math.cos(p * (Math.PI * 2) / 12));\
  5463.  angle_sin = this.radius*(Math.sin(p * (Math.PI * 2) / 12));\
  5464.  x1 = 0.8*angle_cos;y1 = 0.8*angle_sin;x2 = angle_cos;y2 = angle_sin;\
  5465.  clock_ctx.moveTo(x1,y1);\
  5466.  clock_ctx.lineTo(x2,y2);\
  5467. };\
  5468. for(var p = 1; p <= 60 ; p++){\
  5469.  angle_cos = this.radius*(Math.cos(p * (Math.PI * 2) / 60));\
  5470.  angle_sin = this.radius*(Math.sin(p * (Math.PI * 2) / 60));\
  5471.  x1 = 0.9*angle_cos;y1 = 0.9*angle_sin;x2 = angle_cos;y2 = angle_sin;\
  5472.  clock_ctx.moveTo(x1,y1);\
  5473.  clock_ctx.lineTo(x2,y2);\
  5474. };\
  5475. clock_ctx.closePath();\
  5476. clock_ctx.stroke();\
  5477. break;\
  5478. case 1:\
  5479. 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;\
  5480. 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);};\
  5481. clock_ctx.beginPath();\
  5482. for(var p = 1; p <= 12 ; p++){\
  5483.  angle_cos = this.radius*(Math.cos(p * (Math.PI * 2) / 12));\
  5484.  angle_sin = this.radius*(Math.sin(p * (Math.PI * 2) / 12));\
  5485.  x1 = 0.9*angle_cos;y1 = 0.9*angle_sin;x2 = angle_cos;y2 = angle_sin;\
  5486.  clock_ctx.moveTo(x1,y1);\
  5487.  clock_ctx.lineTo(x2,y2);\
  5488. };\
  5489. for(var p = 1; p <= 60 ; p++){\
  5490.  angle_cos = this.radius*(Math.cos(p * (Math.PI * 2) / 60));\
  5491.  angle_sin = this.radius*(Math.sin(p * (Math.PI * 2) / 60));\
  5492.  x1 = 0.95*angle_cos;y1 = 0.95*angle_sin;x2 = angle_cos;y2 = angle_sin;\
  5493.  clock_ctx.moveTo(x1,y1);\
  5494.  clock_ctx.lineTo(x2,y2);\
  5495. };\
  5496. clock_ctx.closePath();\
  5497. clock_ctx.stroke();\
  5498. break;\
  5499. };\
  5500. angle = (this.H - 3 + this.M/60 ) * 2 * Math.PI / 12;\
  5501. clock_ctx.rotate(angle);\
  5502. clock_ctx.beginPath();\
  5503. clock_ctx.moveTo(-3, -2);\
  5504. clock_ctx.lineTo(-3, 2);\
  5505. clock_ctx.lineTo(this.radius * 0.7, 1);\
  5506. clock_ctx.lineTo(this.radius  * 0.7, -1);\
  5507. clock_ctx.fillStyle = this.H_color;\
  5508. clock_ctx.fill();\
  5509. clock_ctx.rotate(-angle);\
  5510. angle = (this.M - 15 + this.S/60) * 2 * Math.PI / 60;\
  5511. clock_ctx.rotate(angle);\
  5512. clock_ctx.beginPath();\
  5513. clock_ctx.moveTo(-3, -2);\
  5514. clock_ctx.lineTo(-3, 2);\
  5515. clock_ctx.lineTo(this.radius  * 0.8, 1);\
  5516. clock_ctx.lineTo(this.radius  * 0.8, -1);\
  5517. clock_ctx.fillStyle = this.M_color;\
  5518. clock_ctx.fill();\
  5519. clock_ctx.rotate(-angle);\
  5520. angle = (this.S - 15) * 2 * Math.PI / 60;\
  5521. clock_ctx.rotate(angle);\
  5522. clock_ctx.beginPath();\
  5523. clock_ctx.moveTo(0,0);\
  5524. clock_ctx.lineTo(this.radius  * 0.95, 0);\
  5525. clock_ctx.lineTo(this.radius  * 0.9, -1);\
  5526. clock_ctx.strokeStyle = this.S_color;\
  5527. clock_ctx.stroke();\
  5528. clock_ctx.restore();\
  5529. };",canvas_root_id,CLOCK_CANVAS);
  5530. break;
  5531.  
  5532. case DRAW_LATTICE:
  5533. fprintf(js_include_file,"\n<!-- draw lattice -->\n\
  5534. 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){\
  5535. var obj;\
  5536. if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
  5537.  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
  5538. }\
  5539. else\
  5540. {\
  5541.  obj = create_canvas%d(canvas_type,xsize,ysize);\
  5542. };\
  5543. var ctx = obj.getContext(\"2d\");\
  5544. ctx.save();\
  5545. if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
  5546. if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
  5547. ctx.fillStyle =\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  5548. ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  5549. var radius = line_width;\
  5550. var x = 0;\
  5551. var y = 0;\
  5552. var x_step_px = xsize/(xmax-xmin);\
  5553. var y_step_px = ysize/(ymax-ymin);\
  5554. var xv1 = dx1*x_step_px;\
  5555. var yv1 = dy1*y_step_px;\
  5556. var xv2 = dx2*x_step_px;\
  5557. var yv2 = dy2*y_step_px;\
  5558. for(var p = 0; p < n1 ;p++){\
  5559.  x = p*xv1 + x0;\
  5560.  y = p*yv1 + y0;\
  5561.  for(var c = 0; c < n2 ; c++){\
  5562.   ctx.beginPath();\
  5563.   ctx.arc(x+c*xv2,y+c*yv2,radius,0,2*Math.PI,false);\
  5564.   ctx.fill();\
  5565.   ctx.stroke();\
  5566.   ctx.closePath();\
  5567.  };\
  5568. };\
  5569. ctx.restore();\
  5570. return;\
  5571. };",canvas_root_id,canvas_root_id,canvas_root_id);
  5572.     break;
  5573. case DRAW_XYLOGSCALE:
  5574. fprintf(js_include_file,"\n<!-- draw xylogscale -->\n\
  5575. 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\
  5576. var obj;\n\
  5577. if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\n\
  5578.  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\n\
  5579. }\n\
  5580. else\n\
  5581. {\n\
  5582.  obj = create_canvas%d(canvas_type,xsize,ysize);\n\
  5583. };\n\
  5584. var ctx = obj.getContext(\"2d\");\n\
  5585. ctx.clearRect(0,0,xsize,ysize);\
  5586. ctx.save();\n\
  5587. var xmarge;var ymarge;var x_e;var y_e;var num;var corr;var xtxt;var ytxt;\
  5588. var x_min = Math.log(xmin)/Math.log(xlogbase);\n\
  5589. var x_max = Math.log(xmax)/Math.log(xlogbase);\n\
  5590. var y_min = Math.log(ymin)/Math.log(ylogbase);\n\
  5591. var y_max = Math.log(ymax)/Math.log(ylogbase);\n\
  5592. if(use_axis_numbering == 1){\
  5593.  ctx.font = font_family;\n\
  5594.  xmarge = ctx.measureText(ylogbase+'^'+y_max.toFixed(0)+' ').width;\n\
  5595.  ymarge = parseInt(1.5*font_size);\n\
  5596.  ctx.save();\n\
  5597.  ctx.fillStyle=\"rgba(255,215,0,0.2)\";\n\
  5598.  ctx.rect(0,0,xmarge,ysize);\n\
  5599.  ctx.rect(0,ysize-ymarge,xsize,ysize);\n\
  5600.  ctx.fill();\n\
  5601.  ctx.restore();\n\
  5602. }else{xmarge = 0;ymarge = 0;};\n\
  5603. if( typeof xaxislabel !== 'undefined' ){\
  5604.  ctx.save();\n\
  5605.  ctx.font = \"italic \"+font_size+\"px Ariel\";\n\
  5606.  ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\n\
  5607.  corr =  ctx.measureText(xaxislabel).width;\n\
  5608.  ctx.fillText(xaxislabel,xsize - 1.5*corr,ysize - 2*font_size);\n\
  5609.  ctx.restore();\n\
  5610. };\n\
  5611. if( typeof yaxislabel !== 'undefined' ){\
  5612.  ctx.save();\n\
  5613.  ctx.font = \"italic \"+font_size+\"px Ariel\";\n\
  5614.  ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\n\
  5615.  corr = ctx.measureText(yaxislabel).width;\n\
  5616.  ctx.translate(xmarge+font_size,corr+font_size);\n\
  5617.  ctx.rotate(-0.5*Math.PI);\n\
  5618.  ctx.fillText(yaxislabel,0,0);\n\
  5619.  ctx.restore();\n\
  5620. };\n\
  5621. ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\n\
  5622. ctx.lineWidth = line_width;\n\n\
  5623. for(var p = x_min; p <= x_max ; p++){\n\
  5624.  num = Math.pow(xlogbase,p);\n\n\
  5625.  for(var i = 1 ; i < xlogbase ; i++){\n\
  5626.   x_e = x2px(i*num);\n\n\
  5627.   if( i == 1 ){\
  5628.    ctx.lineWidth = line_width;\n\n\
  5629.    ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\n\
  5630.    if( use_axis_numbering == 1 && p > x_min){\
  5631.      xtxt = xlogbase+'^'+p.toFixed(0);\n\
  5632.      corr = 0.5*(ctx.measureText(xtxt).width);\n\
  5633.      ctx.fillText(xtxt,x_e - corr,ysize - 4);\n\
  5634.    };\n\
  5635.   }else{\
  5636.    ctx.lineWidth = 0.2*line_width;\n\n\
  5637.    ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\n\
  5638.   };\n\
  5639.   if( x_e >= xmarge ){\
  5640.    ctx.beginPath();\n\
  5641.    ctx.moveTo(x_e,0);\n\
  5642.    ctx.lineTo(x_e,ysize - ymarge);\n\n\
  5643.    ctx.stroke();\n\
  5644.    ctx.closePath();\n\
  5645.   };\
  5646.  };\n\
  5647. };\n\
  5648. for(var p = y_min; p <= y_max ; p++){\n\
  5649.  num = Math.pow(ylogbase,p);\n\
  5650.  for(var i = 1 ; i < ylogbase ; i++){\n\
  5651.   y_e = y2px(i*num);\n\
  5652.   if( i == 1 ){\n\
  5653.    ctx.lineWidth = line_width;\n\
  5654.    ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
  5655.    if( use_axis_numbering == 1 && p > y_min){\n\
  5656.     ctx.fillText(ylogbase+'^'+p.toFixed(0),0,y_e);\n\
  5657.    };\n\
  5658.   }else{\n\
  5659.    ctx.lineWidth = 0.2*line_width;\n\
  5660.    ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\n\
  5661.   };\n\
  5662.   ctx.beginPath();\n\
  5663.   ctx.moveTo(xmarge,y_e);\n\
  5664.   ctx.lineTo(xsize,y_e);\n\
  5665.   ctx.stroke();\n\
  5666.   ctx.closePath();\n\
  5667.  };\n\
  5668. };\n\
  5669. ctx.restore();\
  5670. };",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
  5671.     break;
  5672.  
  5673. case DRAW_XLOGSCALE:
  5674. fprintf(js_include_file,"\n<!-- draw xlogscale -->\n\
  5675. 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\
  5676. var obj;\n\
  5677. if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\n\
  5678.  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\n\
  5679. }\n\
  5680. else\n\
  5681. {\n\
  5682.  obj = create_canvas%d(canvas_type,xsize,ysize);\n\
  5683. };\n\
  5684. var ctx = obj.getContext(\"2d\");\n\
  5685. ctx.clearRect(0,0,xsize,ysize);\
  5686. ctx.save();\n\
  5687. ctx.lineWidth = line_width;\n\
  5688. var prec = Math.log(precision)/Math.log(10);\
  5689. var x_min = Math.log(xmin)/Math.log(xlogbase);\
  5690. var x_max = Math.log(xmax)/Math.log(xlogbase);\
  5691. var y_min = 0;var y_max = ysize;var x_e;var corr;\
  5692. var xtxt;var ytxt;var num;var xmarge;var ymarge;\
  5693. if(use_axis_numbering == 1){\
  5694.  ctx.font = font_family;\n\
  5695.  xmarge = ctx.measureText(ymax.toFixed(prec)+' ').width;\n\
  5696.  ymarge = parseInt(1.5*font_size);\n\
  5697.  ctx.save();\n\
  5698.  ctx.fillStyle=\"rgba(255,215,0,0.2)\";\n\
  5699.  ctx.rect(0,0,xmarge,ysize);\n\
  5700.  ctx.rect(0,ysize-ymarge,xsize,ysize);\n\
  5701.  ctx.fill();\n\
  5702.  ctx.restore();\n\
  5703. }else{xmarge = 0;ymarge = 0;};\n\
  5704. if( typeof xaxislabel !== 'undefined' ){\
  5705.  ctx.save();\n\
  5706.  ctx.font = \"italic \"+font_size+\"px Ariel\";\n\
  5707.  ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\n\
  5708.  corr =  ctx.measureText(xaxislabel).width;\n\
  5709.  ctx.fillText(xaxislabel,xsize - 1.5*corr,ysize - 2*font_size);\n\
  5710.  ctx.restore();\n\
  5711. };\n\
  5712. if( typeof yaxislabel !== 'undefined' ){\
  5713.  ctx.save();\n\
  5714.  ctx.font = \"italic \"+font_size+\"px Ariel\";\n\
  5715.  ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\n\
  5716.  corr = ctx.measureText(yaxislabel).width;\n\
  5717.  ctx.translate(xmarge+font_size,corr+font_size);\n\
  5718.  ctx.rotate(-0.5*Math.PI);\n\
  5719.  ctx.fillText(yaxislabel,0,0);\n\
  5720.  ctx.restore();\n\
  5721. };\n\
  5722. ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\n\
  5723. ctx.lineWidth = line_width;\n\n\
  5724. for(var p = x_min; p <= x_max ; p++){\n\
  5725.  num = Math.pow(xlogbase,p);\n\
  5726.  for(var i = 1 ; i < xlogbase ; i++){\n\
  5727.   x_e = x2px(i*num);\n\
  5728.   if( i == 1 ){\
  5729.     ctx.lineWidth = line_width;\n\
  5730.     ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
  5731.    if( use_axis_numbering == 1 && p > x_min ){\
  5732.      xtxt = xlogbase+'^'+p.toFixed(0);\
  5733.      corr = 0.5*(ctx.measureText(xtxt).width);\
  5734.      ctx.fillText(xtxt,x_e - corr,ysize - 4);\
  5735.    };\
  5736.   }else{\
  5737.    ctx.lineWidth = 0.2*line_width;\n\
  5738.    ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
  5739.   };\
  5740.   if( x_e >= xmarge ){\
  5741.    ctx.beginPath();\n\
  5742.    ctx.moveTo(x_e,0);\n\
  5743.    ctx.lineTo(x_e,ysize - ymarge);\n\n\
  5744.    ctx.stroke();\n\
  5745.    ctx.closePath();\n\
  5746.   };\
  5747.  };\
  5748. };\n\
  5749. var stepy = Math.abs(y2px(ymajor) - y2px(0));\
  5750. var minor_step = stepy / yminor;\
  5751. for(var y = 0 ; y < ysize - stepy ; y = y + stepy){\
  5752.  ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
  5753.  ctx.lineWidth = line_width;\n\
  5754.  ctx.beginPath();\n\
  5755.  ctx.moveTo(xmarge,y);\n\
  5756.  ctx.lineTo(xsize,y);\n\
  5757.  ctx.stroke();\n\
  5758.  ctx.closePath();\n\
  5759.  if( use_axis_numbering == 1){\
  5760.   ytxt = (px2y(y)).toFixed(prec);\
  5761.   ctx.fillText( ytxt,0 ,y + 0.5*font_size );\
  5762.  };\
  5763.  for(var dy = 1 ; dy < yminor ; dy++){\
  5764.   ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
  5765.   ctx.lineWidth = 0.2*line_width;\n\
  5766.   ctx.beginPath();\n\
  5767.   ctx.moveTo(xmarge,y+dy*minor_step);\
  5768.   ctx.lineTo(xsize,y+dy*minor_step);\n\
  5769.   ctx.stroke();\n\
  5770.   ctx.closePath();\n\
  5771.  };\
  5772. };\
  5773. ctx.restore();\n\
  5774. };\n",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
  5775.     break;
  5776. case DRAW_YLOGSCALE:
  5777. fprintf(js_include_file,"\n<!-- draw ylogscale -->\n\
  5778. 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\
  5779. var obj;\n\
  5780. if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\n\
  5781.  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\n\
  5782. }\n\
  5783. else\n\
  5784. {\n\
  5785.  obj = create_canvas%d(canvas_type,xsize,ysize);\n\
  5786. };\n\
  5787. var ctx = obj.getContext(\"2d\");\n\
  5788. ctx.clearRect(0,0,xsize,ysize);\
  5789. ctx.save();\n\
  5790. ctx.lineWidth = line_width;\n\
  5791. var y_min = Math.log(ymin)/Math.log(ylogbase);\
  5792. var y_max = Math.log(ymax)/Math.log(ylogbase);\
  5793. var x_min = 0;var x_max = xsize;var y_s;var y_e;var num;\
  5794. if(use_axis_numbering == 1){\
  5795.  ctx.font = font_family;\n\
  5796.  xmarge = ctx.measureText(ylogbase+\"^\"+y_max.toFixed(0)+' ').width;\n\
  5797.  ymarge = 2*font_size;\n\
  5798.  ctx.save();\n\
  5799.  ctx.fillStyle=\"rgba(255,215,0,0.2)\";\n\
  5800.  ctx.rect(0,0,xmarge,ysize);\n\
  5801.  ctx.rect(0,ysize-ymarge,xsize,ysize);\n\
  5802.  ctx.fill();\n\
  5803.  ctx.restore();\n\
  5804. }else{xmarge = 0;ymarge = 0;};\n\
  5805. if( typeof xaxislabel !== 'undefined' ){\
  5806.  ctx.save();\n\
  5807.  ctx.font = \"italic \"+font_size+\"px Ariel\";\n\
  5808.  ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\n\
  5809.  corr =  ctx.measureText(xaxislabel).width;\n\
  5810.  ctx.fillText(xaxislabel,xsize - 1.5*corr,ysize - 2*font_size);\n\
  5811.  ctx.restore();\n\
  5812. };\n\
  5813. if( typeof yaxislabel !== 'undefined' ){\
  5814.  ctx.save();\n\
  5815.  ctx.font = \"italic \"+font_size+\"px Ariel\";\n\
  5816.  ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\n\
  5817.  corr = ctx.measureText(yaxislabel).width;\n\
  5818.  ctx.translate(xmarge+font_size,corr+font_size);\n\
  5819.  ctx.rotate(-0.5*Math.PI);\n\
  5820.  ctx.fillText(yaxislabel,0,0);\n\
  5821.  ctx.restore();\n\
  5822. };\n\
  5823. ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\n\
  5824. ctx.lineWidth = line_width;\n\n\
  5825. for(var p = y_min; p <= y_max ; p++){\n\
  5826.  num = Math.pow(ylogbase,p);\n\
  5827.  for(var i = 1 ; i < ylogbase ; i++){\n\
  5828.   y_e = y2px(i*num);\n\
  5829.   if( i == 1 ){\
  5830.    ctx.lineWidth = line_width;\n\
  5831.    ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
  5832.    if( use_axis_numbering == 1 && p > y_min){\
  5833.     ctx.fillText(ylogbase+'^'+p.toFixed(0),0,y_e);\
  5834.    };\
  5835.   }else{\
  5836.    ctx.lineWidth = 0.2*line_width;\n\
  5837.    ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
  5838.   };\
  5839.   ctx.beginPath();\n\
  5840.   ctx.moveTo(xmarge,y_e);\n\
  5841.   ctx.lineTo(xsize,y_e);\n\
  5842.   ctx.stroke();\n\
  5843.   ctx.closePath();\n\
  5844.  };\n\
  5845. };\n\
  5846. var stepx = Math.abs(x2px(xmajor) - x2px(0));\
  5847. var minor_step = stepx / xminor;\
  5848. var prec = Math.log(precision)/Math.log(10);\
  5849. var xtxt;var corr;var flip = 0;\
  5850. for(var x = stepx ; x < xsize ; x = x + stepx){\
  5851.  ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
  5852.  ctx.lineWidth = line_width;\n\
  5853.  ctx.beginPath();\n\
  5854.  ctx.moveTo(x,ysize-ymarge);\n\
  5855.  ctx.lineTo(x,0);\n\
  5856.  ctx.stroke();\n\
  5857.  ctx.closePath();\n\
  5858.  if( use_axis_numbering == 1){\
  5859.   xtxt = (px2x(x)).toFixed(prec);\
  5860.   corr = 0.5*(ctx.measureText(xtxt).width);\
  5861.   if(flip == 0 ){flip = 1;ctx.fillText( xtxt,x - corr ,ysize - 0.2*font_size );}else{\
  5862.   flip = 0;ctx.fillText( xtxt,x - corr ,ysize - 1.2*font_size );};\
  5863.  };\
  5864.  for(var dx = 1 ; dx < xminor ; dx++){\
  5865.   ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
  5866.   ctx.lineWidth = 0.2*line_width;\n\
  5867.   ctx.beginPath();\n\
  5868.   ctx.moveTo(x+dx*minor_step,ysize - ymarge);\
  5869.   ctx.lineTo(x+dx*minor_step,0);\n\
  5870.   ctx.stroke();\n\
  5871.   ctx.closePath();\n\
  5872.  };\
  5873. };\
  5874. ctx.restore();\n\
  5875. };\n",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
  5876.  
  5877.     break;
  5878.  
  5879.  
  5880.     default:break;
  5881.    }
  5882.   }
  5883.  }
  5884.   return;
  5885. }
  5886.  
  5887. void check_string_length(int L){
  5888.  if(L<1 || L > MAX_BUFFER-1){
  5889.   canvas_error("problem with your arguments to command...");
  5890.  }
  5891.  return;
  5892. }
  5893.  
  5894.  
  5895. int get_token(FILE *infile){
  5896.         int     c,i=0;
  5897.         char    temp[MAX_INT], *input_type;
  5898.         char    *line="line",
  5899.         *audio="audio",
  5900.         *blink="blink",
  5901.         *arrowhead="arrowhead",
  5902.         *crosshairsize="crosshairsize",
  5903.         *crosshair="crosshair",
  5904.         *crosshairs="crosshairs",
  5905.         *audioobject="audioobject",
  5906.         *style="style",
  5907.         *mouse="mouse",
  5908.         *userdraw="userdraw",
  5909.         *highlight="highlight",
  5910.         *http="http",
  5911.         *rays="rays",
  5912.         *dashtype="dashtype",
  5913.         *dashed="dashed",
  5914.         *filled="filled",
  5915.         *lattice="lattice",
  5916.         *parallel="parallel",
  5917.         *segment="segment",
  5918.         *dsegment="dsegment",
  5919.         *seg="seg",
  5920.         *bgimage="bgimage",
  5921.         *bgcolor="bgcolor",
  5922.         *strokecolor="strokecolor",
  5923.         *backgroundimage="backgroundimage",
  5924.         *text="text",
  5925.         *textup="textup",
  5926.         *mouseprecision="mouseprecision",
  5927.         *precision="precision",
  5928.         *plotsteps="plotsteps",
  5929.         *plotstep="plotstep",
  5930.         *tsteps="tsteps",
  5931.         *curve="curve",
  5932.         *dcurve="dcurve",
  5933.         *plot="plot",
  5934.         *dplot="dplot",
  5935.         *fontsize="fontsize",
  5936.         *fontcolor="fontcolor",
  5937.         *axis="axis",
  5938.         *axisnumbering="axisnumbering",
  5939.         *axisnumbers="axisnumbers",
  5940.         *arrow="arrow",
  5941.         *darrow="darrow",
  5942.         *arrow2="arrow2",
  5943.         *darrow2="darrow2",
  5944.         *zoom="zoom",
  5945.         *grid="grid",
  5946.         *hline="hline",
  5947.         *dhline="dhline",
  5948.         *drag="drag",
  5949.         *horizontalline="horizontalline",
  5950.         *vline="vline",
  5951.         *dvline="dvline",
  5952.         *verticalline="verticalline",
  5953.         *triangle="triangle",
  5954.         *ftriangle="ftriangle",
  5955.         *mathml="mathml",
  5956.         *html="html",
  5957.         *input="input",
  5958.         *button="button",
  5959.         *inputstyle="inputstyle",
  5960.         *textarea="textarea",
  5961.         *trange="trange",
  5962.         *ranget="ranget",
  5963.         *xrange="xrange",
  5964.         *yrange="yrange",
  5965.         *rangex="rangex",
  5966.         *rangey="rangey",
  5967.         *polyline="polyline",
  5968.         *lines="lines",
  5969.         *poly="poly",
  5970.         *polygon="polygon",
  5971.         *fpolygon="fpolygon",
  5972.         *fpoly="fpoly",
  5973.         *filledpoly="filledpoly",
  5974.         *filledpolygon="filledpolygon",
  5975.         *rect="rect",
  5976.         *frect="frect",
  5977.         *rectangle="rectangle",
  5978.         *frectangle="frectangle",
  5979.         *square="square",
  5980.         *fsquare="fsquare",
  5981.         *dline="dline",
  5982.         *arc="arc",
  5983.         *filledarc="filledarc",
  5984.         *size="size",
  5985.         *string="string",
  5986.         *stringup="stringup",
  5987.         *copy="copy",
  5988.         *copyresized="copyresized",
  5989.         *opacity="opacity",
  5990.         *transparent="transparent",
  5991.         *fill="fill",
  5992.         *slider="slider",
  5993.         *point="point",
  5994.         *points="points",
  5995.         *linewidth="linewidth",
  5996.         *circle="circle",
  5997.         *fcircle="fcircle",
  5998.         *disk="disk",
  5999.         *comment="#",
  6000.         *end="end",
  6001.         *ellipse="ellipse",
  6002.         *fellipse="fellipse",
  6003.         *rotate="rotate",
  6004.         *affine="affine",
  6005.         *killaffine="killaffine",
  6006.         *fontfamily="fontfamily",
  6007.         *fillcolor="fillcolor",
  6008.         *clicktile="clicktile",
  6009.         *clicktile_colors="clicktile_colors",
  6010.         *translation="translation",
  6011.         *translate="translate",
  6012.         *killtranslation="killtranslation",
  6013.         *killtranslate="killtranslate",
  6014.         *onclick="onclick",
  6015.         *roundrect="roundrect",
  6016.         *froundrect="froundrect",
  6017.         *roundrectangle="roundrectangle",
  6018.         *patternfill="patternfill",
  6019.         *hatchfill="hatchfill",
  6020.         *diafill="diafill",
  6021.         *diamondfill="diamondfill",
  6022.         *dotfill="dotfill",
  6023.         *gridfill="gridfill",
  6024.         *imagefill="imagefill",
  6025.         *xlogbase="xlogbase",
  6026.         *ylogbase="ylogbase",
  6027.         *xlogscale="xlogscale",
  6028.         *ylogscale="ylogscale",
  6029.         *xylogscale="xylogscale",
  6030.         *intooltip="intooltip",
  6031.         *replyformat="replyformat",
  6032.         *floodfill="floodfill",
  6033.         *filltoborder="filltoborder",
  6034.         *clickfill="clickfill",
  6035.         *setpixel="setpixel",
  6036.         *pixels="pixels",
  6037.         *pixelsize="pixelsize",
  6038.         *clickfillmarge="clickfillmarge",
  6039.         *xaxis="xaxis",
  6040.         *yaxis="yaxis",
  6041.         *xaxistext="xaxistext",
  6042.         *yaxistext="yaxistext",
  6043.         *piechart="piechart",
  6044.         *legend="legend",
  6045.         *legendcolors="legendcolors",
  6046.         *xlabel="xlabel",
  6047.         *ylabel="ylabel",
  6048.         *barchart="barchart",
  6049.         *linegraph="linegraph",
  6050.         *clock="clock",
  6051.         *animate="animate",
  6052.         *video="video",
  6053.         *status="status",
  6054.         *snaptogrid="snaptogrid",
  6055.         *xsnaptogrid="xsnaptogrid",
  6056.         *ysnaptogrid="ysnaptogrid",
  6057.         *userinput_xy="userinput_xy",
  6058.         *usertextarea_xy="usertextarea_xy",
  6059.         *sgraph="sgraph";
  6060.  
  6061.         while(((c = getc(infile)) != EOF)&&(c!='\n')&&(c!=',')&&(c!='=')&&(c!='\r')){
  6062.             if( i == 0 && (c == ' ' || c == '\t') ){
  6063.         continue; /* white spaces or tabs allowed before first command identifier */
  6064.             }
  6065.             else
  6066.             {
  6067.         if( c == ' ' || c == '\t' ){
  6068.             break;
  6069.         }
  6070.         else
  6071.         {
  6072.             temp[i] = c;
  6073.             if(i > MAX_INT - 2){canvas_error("command string too long !");}
  6074.             i++;
  6075.         }
  6076.             }
  6077.             if(temp[0] == '#') break;
  6078.         }
  6079.         if (c == EOF) finished = 1;
  6080.  
  6081.         if (c == '\n' || c == '\r') {
  6082.         line_number++;
  6083.         if (i == 0) { return EMPTY; }
  6084.         } else if (c == EOF) {
  6085.         return 0;
  6086.         }
  6087.  
  6088.         temp[i]='\0';
  6089.         input_type=(char*)my_newmem(strlen(temp));
  6090.         snprintf(input_type,sizeof(temp),"%s",temp);
  6091.  
  6092.         if( strcmp(input_type, size) == 0 ){
  6093.         free(input_type);
  6094.         return SIZE;
  6095.         }
  6096.         if( strcmp(input_type, xrange) == 0 ){
  6097.         free(input_type);
  6098.         return XRANGE;
  6099.         }
  6100.         if( strcmp(input_type, rangex) == 0 ){
  6101.         free(input_type);
  6102.         return XRANGE;
  6103.         }
  6104.         if( strcmp(input_type, trange) == 0 ){
  6105.         free(input_type);
  6106.         return TRANGE;
  6107.         }
  6108.         if( strcmp(input_type, ranget) == 0 ){
  6109.         free(input_type);
  6110.         return TRANGE;
  6111.         }
  6112.         if( strcmp(input_type, yrange) == 0 ){
  6113.         free(input_type);
  6114.         return YRANGE;
  6115.         }
  6116.         if( strcmp(input_type, rangey) == 0 ){
  6117.         free(input_type);
  6118.         return YRANGE;
  6119.         }
  6120.         if( strcmp(input_type, linewidth) == 0 ){
  6121.         free(input_type);
  6122.         return LINEWIDTH;
  6123.         }
  6124.         if( strcmp(input_type, dashed) == 0 ){
  6125.         free(input_type);
  6126.         return DASHED;
  6127.         }
  6128.         if( strcmp(input_type, dashtype) == 0 ){
  6129.         free(input_type);
  6130.         return DASHTYPE;
  6131.         }
  6132.         if( strcmp(input_type, axisnumbering) == 0 ){
  6133.         free(input_type);
  6134.         return AXIS_NUMBERING;
  6135.         }
  6136.         if( strcmp(input_type, axisnumbers) == 0 ){
  6137.         free(input_type);
  6138.         return AXIS_NUMBERING;
  6139.         }
  6140.         if( strcmp(input_type, axis) == 0 ){
  6141.         free(input_type);
  6142.         return AXIS;
  6143.         }
  6144.         if( strcmp(input_type, grid) == 0 ){
  6145.         free(input_type);
  6146.         return GRID;
  6147.         }
  6148.         if( strcmp(input_type, parallel) == 0 ){
  6149.         free(input_type);
  6150.         return PARALLEL;
  6151.         }
  6152.         if( strcmp(input_type, hline) == 0 ||  strcmp(input_type, horizontalline) == 0 ){
  6153.         free(input_type);
  6154.         return HLINE;
  6155.         }
  6156.         if( strcmp(input_type, vline) == 0 ||  strcmp(input_type, verticalline) == 0 ){
  6157.         free(input_type);
  6158.         return VLINE;
  6159.         }
  6160.         if( strcmp(input_type, line) == 0 ){
  6161.         free(input_type);
  6162.         return LINE;
  6163.         }
  6164.         if( strcmp(input_type, seg) == 0 ||  strcmp(input_type, segment) == 0 ){
  6165.         free(input_type);
  6166.         return SEGMENT;
  6167.         }
  6168.         if( strcmp(input_type, dsegment) == 0 ){
  6169.         free(input_type);
  6170.         use_dashed = TRUE;
  6171.         return SEGMENT;
  6172.         }
  6173.         if( strcmp(input_type, crosshairsize) == 0 ){
  6174.         free(input_type);
  6175.         return CROSSHAIRSIZE;
  6176.         }
  6177.         if( strcmp(input_type, arrowhead) == 0 ){
  6178.         free(input_type);
  6179.         return ARROWHEAD;
  6180.         }
  6181.         if( strcmp(input_type, crosshairs) == 0 ){
  6182.         free(input_type);
  6183.         return CROSSHAIRS;
  6184.         }
  6185.         if( strcmp(input_type, crosshair) == 0 ){
  6186.         free(input_type);
  6187.         return CROSSHAIR;
  6188.         }
  6189.         if( strcmp(input_type, onclick) == 0 ){
  6190.         free(input_type);
  6191.         return ONCLICK;
  6192.         }
  6193.         if( strcmp(input_type, drag) == 0 ){
  6194.         free(input_type);
  6195.         return DRAG;
  6196.         }
  6197.         if( strcmp(input_type, userdraw) == 0 ){
  6198.         free(input_type);
  6199.         return USERDRAW;
  6200.         }
  6201.         if( strcmp(input_type, highlight) == 0 || strcmp(input_type, style) == 0 ){
  6202.         free(input_type);
  6203.         return STYLE;
  6204.         }
  6205.         if( strcmp(input_type, fillcolor) == 0 ){
  6206.         free(input_type);
  6207.         return FILLCOLOR;
  6208.         }
  6209.         if( strcmp(input_type, strokecolor) == 0 ){
  6210.         free(input_type);
  6211.         return STROKECOLOR;
  6212.         }
  6213.         if( strcmp(input_type, filled) == 0  ){
  6214.         free(input_type);
  6215.         return FILLED;
  6216.         }
  6217.         if( strcmp(input_type, http) == 0 ){
  6218.         free(input_type);
  6219.         return HTTP;
  6220.         }
  6221.         if( strcmp(input_type, rays) == 0 ){
  6222.         free(input_type);
  6223.         return RAYS;
  6224.         }
  6225.         if( strcmp(input_type, lattice) == 0 ){
  6226.         free(input_type);
  6227.         return LATTICE;
  6228.         }
  6229.         if( strcmp(input_type, bgimage) == 0 ){
  6230.         free(input_type);
  6231.         return BGIMAGE;
  6232.         }
  6233.         if( strcmp(input_type, bgcolor) == 0 ){
  6234.         free(input_type);
  6235.         return BGCOLOR;
  6236.         }
  6237.         if( strcmp(input_type, backgroundimage) == 0 ){
  6238.         free(input_type);
  6239.         return BGIMAGE;
  6240.         }
  6241.         if( strcmp(input_type, text) == 0 ){
  6242.         free(input_type);
  6243.         return FLY_TEXT;
  6244.         }
  6245.         if( strcmp(input_type, textup) == 0 ){
  6246.         free(input_type);
  6247.         return FLY_TEXTUP;
  6248.         }
  6249.         if( strcmp(input_type, mouse) == 0 ){
  6250.         free(input_type);
  6251.         return MOUSE;
  6252.         }
  6253.         if( strcmp(input_type, mouseprecision) == 0 ){
  6254.         free(input_type);
  6255.         return MOUSE_PRECISION;
  6256.         }
  6257.         if( strcmp(input_type, precision) == 0 ){
  6258.         free(input_type);
  6259.         return MOUSE_PRECISION;
  6260.         }
  6261.         if( strcmp(input_type, curve) == 0 ){
  6262.         free(input_type);
  6263.         return CURVE;
  6264.         }
  6265.         if( strcmp(input_type, dcurve) == 0 ){
  6266.         free(input_type);
  6267.         return CURVE;
  6268.         }
  6269.         if( strcmp(input_type, plot) == 0 ){
  6270.         free(input_type);
  6271.         return CURVE;
  6272.         }
  6273.         if( strcmp(input_type, dplot) == 0 ){
  6274.         free(input_type);
  6275.         return CURVE;
  6276.         }
  6277.         if( strcmp(input_type, plotsteps) == 0 ){
  6278.         free(input_type);
  6279.         return PLOTSTEPS;
  6280.         }
  6281.         if( strcmp(input_type, plotstep) == 0 ){
  6282.         free(input_type);
  6283.         return PLOTSTEPS;
  6284.         }
  6285.         if( strcmp(input_type, tsteps) == 0 ){
  6286.         free(input_type);
  6287.         return PLOTSTEPS;
  6288.         }
  6289.         if( strcmp(input_type, fontsize) == 0 ){
  6290.         free(input_type);
  6291.         return FONTSIZE;
  6292.         }
  6293.         if( strcmp(input_type, fontcolor) == 0 ){
  6294.         free(input_type);
  6295.         return FONTCOLOR;
  6296.         }
  6297.         if( strcmp(input_type, arrow) == 0 ){
  6298.         free(input_type);
  6299.         return ARROW;
  6300.         }
  6301.         if( strcmp(input_type, arrow2) == 0 ){
  6302.         free(input_type);
  6303.         return ARROW2;
  6304.         }
  6305.         if( strcmp(input_type, darrow) == 0 ){
  6306.         free(input_type);
  6307.         return ARROW;
  6308.         }
  6309.         if( strcmp(input_type, darrow2) == 0 ){
  6310.         free(input_type);
  6311.         use_dashed = TRUE;
  6312.         return ARROW2;
  6313.         }
  6314.         if( strcmp(input_type, zoom) == 0 ){
  6315.         free(input_type);
  6316.         return ZOOM;
  6317.         }
  6318.         if( strcmp(input_type, triangle) == 0 ){
  6319.         free(input_type);
  6320.         return TRIANGLE;
  6321.         }
  6322.         if( strcmp(input_type, ftriangle) == 0 ){
  6323.         free(input_type);
  6324.         use_filled = TRUE;
  6325.         return TRIANGLE;
  6326.         }
  6327.         if( strcmp(input_type, input) == 0 ){
  6328.         free(input_type);
  6329.         return INPUT;
  6330.         }
  6331.         if( strcmp(input_type, inputstyle) == 0 ){
  6332.         free(input_type);
  6333.         return INPUTSTYLE;
  6334.         }
  6335.         if( strcmp(input_type, textarea) == 0 ){
  6336.         free(input_type);
  6337.         return TEXTAREA;
  6338.         }
  6339.         if( strcmp(input_type, mathml) == 0 ){
  6340.         free(input_type);
  6341.         return MATHML;
  6342.         }
  6343.         if( strcmp(input_type, html) == 0 ){
  6344.         free(input_type);
  6345.         return MATHML;
  6346.         }
  6347.         if( strcmp(input_type, fontfamily) == 0 ){
  6348.         free(input_type);
  6349.         return FONTFAMILY;
  6350.         }
  6351.         if( strcmp(input_type, lines) == 0  ||  strcmp(input_type, polyline) == 0 ){
  6352.         free(input_type);
  6353.         return POLYLINE;
  6354.         }
  6355.         if( strcmp(input_type, rect) == 0  ||  strcmp(input_type, rectangle) == 0 ){
  6356.         free(input_type);
  6357.         return RECT;
  6358.         }
  6359.         if( strcmp(input_type, roundrect) == 0  ||  strcmp(input_type, roundrectangle) == 0 ){
  6360.         free(input_type);
  6361.         return ROUNDRECT;
  6362.         }
  6363.         if( strcmp(input_type, froundrect) == 0 ){
  6364.         free(input_type);
  6365.         use_filled = TRUE;
  6366.         return ROUNDRECT;
  6367.         }
  6368.         if( strcmp(input_type, square) == 0 ){
  6369.         free(input_type);
  6370.         return SQUARE;
  6371.         }
  6372.         if( strcmp(input_type, fsquare) == 0 ){
  6373.         free(input_type);
  6374.         use_filled = TRUE;
  6375.         return SQUARE;
  6376.         }
  6377.         if( strcmp(input_type, dline) == 0 ){
  6378.         use_dashed = TRUE;
  6379.         free(input_type);
  6380.         return LINE;
  6381.         }
  6382.         if( strcmp(input_type, dvline) == 0 ){
  6383.         use_dashed = TRUE;
  6384.         free(input_type);
  6385.         return VLINE;
  6386.         }
  6387.         if( strcmp(input_type, dhline) == 0 ){
  6388.         use_dashed = TRUE;
  6389.         free(input_type);
  6390.         return HLINE;
  6391.         }
  6392.         if( strcmp(input_type, frect) == 0 || strcmp(input_type, frectangle) == 0 ){
  6393.         use_filled = TRUE;
  6394.         free(input_type);
  6395.         return RECT;
  6396.         }
  6397.         if( strcmp(input_type, fcircle) == 0  ||  strcmp(input_type, disk) == 0 ){
  6398.         use_filled = TRUE;
  6399.         free(input_type);
  6400.         return CIRCLE;
  6401.         }
  6402.         if( strcmp(input_type, circle) == 0 ){
  6403.         free(input_type);
  6404.         return CIRCLE;
  6405.         }
  6406.         if( strcmp(input_type, point) == 0 ){
  6407.         free(input_type);
  6408.         return POINT;
  6409.         }
  6410.         if( strcmp(input_type, points) == 0 ){
  6411.         free(input_type);
  6412.         return POINTS;
  6413.         }
  6414.         if( strcmp(input_type, filledarc) == 0 ){
  6415.         use_filled = TRUE;
  6416.         free(input_type);
  6417.         return ARC;
  6418.         }
  6419.         if( strcmp(input_type, arc) == 0 ){
  6420.         free(input_type);
  6421.         return ARC;
  6422.         }
  6423.         if( strcmp(input_type, poly) == 0 ||  strcmp(input_type, polygon) == 0 ){
  6424.         free(input_type);
  6425.         return POLY;
  6426.         }
  6427.         if( strcmp(input_type, fpoly) == 0 ||  strcmp(input_type, filledpoly) == 0 || strcmp(input_type,filledpolygon) == 0  || strcmp(input_type,fpolygon) == 0  ){
  6428.         use_filled = TRUE;
  6429.         free(input_type);
  6430.         return POLY;
  6431.         }
  6432.         if( strcmp(input_type, ellipse) == 0){
  6433.         free(input_type);
  6434.         return ELLIPSE;
  6435.         }
  6436.         if( strcmp(input_type, fill) == 0 ){
  6437.         free(input_type);
  6438.         return FLOODFILL;
  6439.         }
  6440.         if( strcmp(input_type, string) == 0 ){
  6441.         free(input_type);
  6442.         return STRING;
  6443.         }
  6444.         if( strcmp(input_type, stringup) == 0 ){
  6445.         free(input_type);
  6446.         return STRINGUP;
  6447.         }
  6448.         if( strcmp(input_type, opacity) == 0 ){
  6449.         free(input_type);
  6450.         return OPACITY;
  6451.         }
  6452.         if( strcmp(input_type, comment) == 0){
  6453.         free(input_type);
  6454.         return COMMENT;
  6455.         }
  6456.         if( strcmp(input_type, end) == 0){
  6457.         free(input_type);
  6458.         return END;
  6459.         }
  6460.         if( strcmp(input_type, fellipse) == 0){
  6461.         free(input_type);
  6462.         use_filled = TRUE;
  6463.         return ELLIPSE;
  6464.         }      
  6465.         if( strcmp(input_type, blink) == 0 ){
  6466.         free(input_type);
  6467.         return BLINK;
  6468.         }
  6469.         if( strcmp(input_type, button) == 0){
  6470.         free(input_type);
  6471.         return BUTTON;
  6472.         }
  6473.         if( strcmp(input_type, translation) == 0 ||  strcmp(input_type, translate) == 0  ){
  6474.         free(input_type);
  6475.         return TRANSLATION;
  6476.         }
  6477.         if( strcmp(input_type, killtranslation) == 0 ||  strcmp(input_type, killtranslate) == 0){
  6478.         free(input_type);
  6479.         return KILLTRANSLATION;
  6480.         }
  6481.         if( strcmp(input_type, rotate) == 0){
  6482.         free(input_type);
  6483.         return ROTATE;
  6484.         }
  6485.         if( strcmp(input_type, affine) == 0){
  6486.         free(input_type);
  6487.         return AFFINE;
  6488.         }
  6489.         if( strcmp(input_type, killaffine) == 0){
  6490.         free(input_type);
  6491.         return KILLAFFINE;
  6492.         }
  6493.         if( strcmp(input_type, audio) == 0 ){
  6494.         free(input_type);
  6495.         return AUDIO;
  6496.         }
  6497.         if( strcmp(input_type, audioobject) == 0 ){
  6498.         free(input_type);
  6499.         return AUDIOOBJECT;
  6500.         }
  6501.         if( strcmp(input_type, slider) == 0 ){
  6502.         free(input_type);
  6503.         return SLIDER;
  6504.         }
  6505.         if( strcmp(input_type, copy) == 0 ){
  6506.         free(input_type);
  6507.         return COPY;
  6508.         }
  6509.         if( strcmp(input_type, copyresized) == 0 ){
  6510.         free(input_type);
  6511.         return COPYRESIZED;
  6512.         }
  6513.         if( strcmp(input_type, patternfill) == 0 ){
  6514.         free(input_type);
  6515.         return PATTERNFILL;
  6516.         }
  6517.         if( strcmp(input_type, hatchfill) == 0 ){
  6518.         free(input_type);
  6519.         return HATCHFILL;
  6520.         }
  6521.         if( strcmp(input_type, diafill) == 0  || strcmp(input_type, diamondfill) == 0  ){
  6522.         free(input_type);
  6523.         return DIAMONDFILL;
  6524.         }
  6525.         if( strcmp(input_type, dotfill) == 0 ){
  6526.         free(input_type);
  6527.         return DOTFILL;
  6528.         }
  6529.         if( strcmp(input_type, gridfill) == 0 ){
  6530.         free(input_type);
  6531.         return GRIDFILL;
  6532.         }
  6533.         if( strcmp(input_type, imagefill) == 0 ){
  6534.         free(input_type);
  6535.         return IMAGEFILL;
  6536.         }
  6537.         if( strcmp(input_type, clicktile_colors) == 0 ){
  6538.         free(input_type);
  6539.         return CLICKTILE_COLORS;
  6540.         }
  6541.         if( strcmp(input_type, clicktile) == 0 ){
  6542.         free(input_type);
  6543.         return CLICKTILE;
  6544.         }
  6545.         if( strcmp(input_type, xlogscale) == 0 ){
  6546.         free(input_type);
  6547.         return XLOGSCALE;
  6548.         }
  6549.         if( strcmp(input_type, ylogscale) == 0 ){
  6550.         free(input_type);
  6551.         return YLOGSCALE;
  6552.         }
  6553.         if( strcmp(input_type, xylogscale) == 0 ){
  6554.         free(input_type);
  6555.         return XYLOGSCALE;
  6556.         }
  6557.         if( strcmp(input_type, ylogscale) == 0 ){
  6558.         free(input_type);
  6559.         return YLOGSCALE;
  6560.         }
  6561.         if( strcmp(input_type, xlogbase) == 0 ){
  6562.         free(input_type);
  6563.         return XLOGBASE;
  6564.         }
  6565.         if( strcmp(input_type, ylogbase) == 0 ){
  6566.         free(input_type);
  6567.         return YLOGBASE;
  6568.         }
  6569.         if( strcmp(input_type, intooltip) == 0 ){
  6570.         free(input_type);
  6571.         return INTOOLTIP;
  6572.         }
  6573.         if( strcmp(input_type,video) == 0 ){
  6574.         free(input_type);
  6575.         return VIDEO;
  6576.         }
  6577.         if( strcmp(input_type,floodfill) == 0 || strcmp(input_type,fill) == 0 ){
  6578.         free(input_type);
  6579.         return FLOODFILL;
  6580.         }      
  6581.         if( strcmp(input_type,filltoborder) == 0 ){
  6582.         free(input_type);
  6583.         return FILLTOBORDER;
  6584.         }      
  6585.         if( strcmp(input_type,clickfill) == 0 ){
  6586.         free(input_type);
  6587.         return CLICKFILL;
  6588.         }      
  6589.         if( strcmp(input_type, replyformat) == 0 ){
  6590.         free(input_type);
  6591.         return REPLYFORMAT;
  6592.         }
  6593.         if( strcmp(input_type, pixelsize) == 0 ){
  6594.         free(input_type);
  6595.         return PIXELSIZE;
  6596.         }
  6597.         if( strcmp(input_type, setpixel) == 0 ){
  6598.         free(input_type);
  6599.         return SETPIXEL;
  6600.         }
  6601.         if( strcmp(input_type, pixels) == 0 ){
  6602.         free(input_type);
  6603.         return PIXELS;
  6604.         }
  6605.         if( strcmp(input_type, clickfillmarge) == 0 ){
  6606.         free(input_type);
  6607.         return CLICKFILLMARGE;
  6608.         }
  6609.         if( strcmp(input_type, xaxis) == 0 || strcmp(input_type, xaxistext) == 0 ){
  6610.         free(input_type);
  6611.         return X_AXIS_STRINGS;
  6612.         }
  6613.         if( strcmp(input_type, yaxis) == 0  ||  strcmp(input_type, yaxistext) == 0 ){
  6614.         free(input_type);
  6615.         return Y_AXIS_STRINGS;
  6616.         }
  6617.         if( strcmp(input_type, piechart) == 0  ){
  6618.         free(input_type);
  6619.         return PIECHART;
  6620.         }
  6621.         if( strcmp(input_type, barchart) == 0  ){
  6622.         free(input_type);
  6623.         return BARCHART;
  6624.         }
  6625.         if( strcmp(input_type, linegraph) == 0  ){
  6626.         free(input_type);
  6627.         return LINEGRAPH;
  6628.         }
  6629.         if( strcmp(input_type, clock) == 0  ){
  6630.         free(input_type);
  6631.         return CLOCK;
  6632.         }
  6633.         if( strcmp(input_type, legend) == 0  ){
  6634.         free(input_type);
  6635.         return LEGEND;
  6636.         }
  6637.         if( strcmp(input_type, legendcolors) == 0  ){
  6638.         free(input_type);
  6639.         return LEGENDCOLORS;
  6640.         }
  6641.         if( strcmp(input_type, xlabel) == 0  ){
  6642.         free(input_type);
  6643.         return XLABEL;
  6644.         }
  6645.         if( strcmp(input_type, ylabel) == 0  ){
  6646.         free(input_type);
  6647.         return YLABEL;
  6648.         }
  6649.         if( strcmp(input_type, animate) == 0  ){
  6650.         free(input_type);
  6651.         return ANIMATE;
  6652.         }
  6653.         /* these are bitmap related flydraw commmands...must be removed. eventually */
  6654.         if( strcmp(input_type, transparent) == 0 ){
  6655.         free(input_type);
  6656.         return TRANSPARENT;
  6657.         }
  6658.         if( strcmp(input_type, status) == 0 ){
  6659.         free(input_type);
  6660.         return STATUS;
  6661.         }
  6662.         if( strcmp(input_type, snaptogrid) == 0 ){
  6663.         free(input_type);
  6664.         return SNAPTOGRID;
  6665.         }
  6666.         if( strcmp(input_type, xsnaptogrid) == 0 ){
  6667.         free(input_type);
  6668.         return XSNAPTOGRID;
  6669.         }
  6670.         if( strcmp(input_type, ysnaptogrid) == 0 ){
  6671.         free(input_type);
  6672.         return YSNAPTOGRID;
  6673.         }
  6674.         if( strcmp(input_type, userinput_xy) == 0 ){
  6675.         free(input_type);
  6676.         return USERINPUT_XY;
  6677.         }
  6678.         if( strcmp(input_type, usertextarea_xy) == 0 ){
  6679.         free(input_type);
  6680.         return USERTEXTAREA_XY;
  6681.         }
  6682.         if( strcmp(input_type, sgraph) == 0 ){
  6683.         free(input_type);
  6684.         return SGRAPH;
  6685.         }
  6686.         free(input_type);
  6687.         ungetc(c,infile);
  6688.         return 0;
  6689. }
  6690.  
  6691.  
  6692.