WebSVN – wimsdev – /trunk/wims/src/Misc/canvasdraw/canvasdraw.c

/*
27/7/2013 version 0.01
"Inspired" by FLY program: http://martin.gleeson.com/fly
*********************************************************************************
* J.M. Evers 7/2013 *
* This is all just amateur scriblings... So no copyrights. *
* This source code file, and compiled objects derived from it, *
* can be used and distributed without restriction, including for commercial use *
* No warrenty whatsoever *
*********************************************************************************
*/
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>
#include <unistd.h>
#include <time.h> /* use for random id's */
#include <math.h>
/*
#include <ctype.h>
11/2013
removed: FreeBSD 9.0 / 9.1 C-lib bug...in chroot it will result in: Undefined symbol "_ThreadRuneLocale" implemented own versions of tolower() / toupper()
Clang is fine (FreeBSD 10.0)
*/
/*
in case svgdraw is in ~/src/Misc/svgdraw
#include "../svgdraw/include/matheval.h"
*/
#include "include/matheval.h"
#include <assert.h>
#include "canvasdraw.h"
#include <sys/stat.h>
/* needed for gettimeofday */
#include <sys/time.h>
#include "canvasmacro.c"
/******************************************************************************
** Internal Functions
******************************************************************************/
void add_to_buffer(char *tmp); /* add tmp_buffer to the buffer */
void sync_input(FILE *infile);/* proceed with inputfile */
void canvas_error(char *msg);
void add_javascript_functions(int js_functions[], int canvas_root_id);
void reset();/* reset some global variables like "use_filled" , "use_dashed" */
int get_token(FILE *infile); /* read next char until EOL*/
int x2px(double x);
int y2px(double y);
double px2x(int x);
double px2y(int y);
double get_real(FILE *infile,int last); /* read a values; calculation and symbols allowed */
double get_double(FILE *infile , int orientation , int last); /*the same as get_real(): but for an unknown amount of data args*/
char *str_replace ( const char *word, const char *sub_word, const char *rep_word );
char *get_color(FILE *infile,int last); /* read hex-color or colorname -> hex */
char *get_string(FILE *infile,int last); /* get the string at theend of a command */
char *get_string_argument(FILE *infile,int last); /* the same, but with "comma" as separator */
char *convert_hex2rgb(char *hexcolor);
void add_read_canvas(int reply_format);
void make_js_include(int canvas_root_id);
void check_string_length(int length);/* checks if the length of string argument of command is correct */
FILE *js_include_file;
FILE *get_file(int *line_number, char **filename);
FILE *infile; /* will be stdin */
/******************************************************************************
** global
******************************************************************************/
int finished = FALSE;/* main variable for signalling the end of the fly-script ; if finished = 1 ; write to stdout or canvasz */
int line_number = 1;/* used in canvas_error() ; keep track of line number in canvasdraw/fly - script */
/* set some variables to avoid trouble (NaN) in case of syntax and other usage errors */
int xsize = 320;
int ysize = 320;
double xmin = 0.0;
double xmax = 320.0;
double ymin = 0.0;
double ymax = 320.0;
double tmax = 2;
double tmin = -2;
/* flag to indicate parsing of line status */
int done = FALSE;
int type; /* eg command number */
int onclick = 0;/* 0 = noninteractive ; 1 = onclick ; 2 = draggable*/
int use_rotate = FALSE;
int use_translate = FALSE;
int use_filled = FALSE;
int use_dashed = FALSE; /* dashing not natively supported in firefox , for now... */
char buffer[MAX_BUFFER];/* contains js-functions with arguments ... all other basic code is directly printed into js-include file */
/******************************************************************************
** Main Program
******************************************************************************/
int main(int argc, char *argv[]){
/* need unique id for every call to canvasdraw : rand(); is too slow...will result in many identical id's */
struct timeval tv;struct timezone tz;gettimeofday(&tv, &tz);unsigned int canvas_root_id = (unsigned int) tv.tv_usec;
infile = stdin;/* read flyscript via stdin */
int i,c;
double double_data[MAX_INT+1];
int int_data[MAX_INT+1];
for(i=0;i<MAX_INT;i++){int_data[i]=0;double_data[i]=0;}
int use_parametric = FALSE;/* will be reset after parametric plotting */
int use_axis = FALSE;
int use_axis_numbering = FALSE;
int line_width = 1;
int decimals = 2;
int debug = 0;
int precision = 100; /* 10 = 1;100=2;1000=3 decimal display for mouse coordinates or grid coordinate */
int use_userdraw = FALSE; /* flag to indicate user interaction: incompatible with "drag & drop" code !! */
int drag_type = -1;/* 0,1,2 : xy,x,y */
int use_tooltip = FALSE;
char *tooltip_text = "Click here";
char *temp = ""; /* */
char *bgcolor = "";/* used for background of canvas_div ; default is tranparent */
char *stroke_color = "255,0,0";
char *fill_color = "0,255,0";
char *font_family = "12px Ariel"; /* commands xaxistext,yaxistext,legend,text/textup/string/stringup may us this */
char *font_color = "#00000";
char *draw_type = "points";
char *fly_font = "normal";
char *input_style = "";
char *flytext = "";
int pixelsize = 1;
int reply_format = 0;
int input_cnt = 0;
int ext_img_cnt = 0;
int font_size = 12;
int dashtype[2] = { 2 , 2 };
int js_function[MAX_JS_FUNCTIONS]; /* javascript functions include objects on demand basis : only once per object type */
for(i=0;i<MAX_JS_FUNCTIONS;i++){js_function[i]=0;}
int arrow_head = 8; /* size in px*/
int crosshair_size = 10; /* size in px*/
int plot_steps = 150;
int found_size_command = 0;
int click_cnt = 1;
int clock_cnt = 0; /* counts the amount of clocks used -> unique object clock%d */
int linegraph_cnt = 0; /* identifier for command 'linegraph' ; multiple line graphs may be plotted in a single plot*/
int use_mouse_coordinates = FALSE;
double angle = 0.0;
int translate_x = 0;
int translate_y = 0;
int clickfillmarge = 20;
int animation_type = 9; /* == object type curve in drag library */
size_t string_length = 0;
double stroke_opacity = 0.8;
double fill_opacity = 0.8;
char *URL = "http://localhost/images";
memset(buffer,'\0',MAX_BUFFER);
void *tmp_buffer = "";
/* default writing a unzipped js-include file into wims getfile directory */
char *w_wims_session = getenv("w_wims_session");
if( w_wims_session == NULL || *w_wims_session == 0 ){
canvas_error("Hmmm, your wims environment does not exist...\nCanvasdraw should be used within wims.");
}
int L0=strlen(w_wims_session) + 21;
char *getfile_dir = my_newmem(L0); /* create memory to fit string precisely */
snprintf(getfile_dir,L0, "../sessions/%s/getfile",w_wims_session);/* string will fit precisely */
mode_t process_mask = umask(0); /* check if file exists */
int result = mkdir(getfile_dir, S_IRWXU | S_IRWXG | S_IRWXO);
if( result == 0 || errno == EEXIST ){
umask(process_mask); /* be sure to set correct permission */
char *w_session = getenv("w_session");
int L1 = (int) (strlen(w_session)) + find_number_of_digits(canvas_root_id) + 48;
char *getfile_cmd = my_newmem(L1); /* create memory to fit string precisely */
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 */
/* write the include tag to html page:<script type="text/javascript" src="wims.cgi?session=%s&cmd=getfile&special_parm=11223344_js"></script> */
/* now write file into getfile dir*/
char *w_wims_home = getenv("w_wims_home"); /* "/home/users/wims" : we need absolute path for location */
int L2 = (int) (strlen(w_wims_home)) + (int) (strlen(w_wims_session)) + find_number_of_digits(canvas_root_id) + 23;
char *location = my_newmem(L2); /* create memory to fit string precisely */
snprintf(location,L2,"%s/sessions/%s/getfile/%d.js",w_wims_home,w_wims_session,canvas_root_id);/*absolute path */
js_include_file = fopen(location,"w");/* open the file location for writing */
/* check on opening...if nogood : mount readonly? disk full? permissions not set correctly? */
if(js_include_file == NULL){ canvas_error("SHOULD NOT HAPPEN : could not write to javascript include file...check your system logfiles !" );}
/* ----------------------------------------------------- */
/* while more lines to process */
while(!finished){
if(line_number>1 && found_size_command == FALSE){canvas_error("command \"size xsize,ysize\" needs to come first ! ");}
type = get_token(infile);
done = FALSE;
/*
@canvasdraw
@will try use the same syntax as flydraw or svgdraw to paint a html5 bitmap image by generating a tailor-made javascript include file: providing only the js-functionality needed to perform the job. thus ensuring a minimal strain on the client browser (unlike some popular 'canvas-do-it-all' libraries, who have proven to be not suitable for low-end computers found in schools...)
@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. 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' (like frect,fcircle,ftriangle...) or by using the keyword 'filled' before the object command. 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' The translation can be read by javascript:read_dragdrop(); Multiple objects may be set draggable / clickable (no limit) not all flydraw objects may be dragged / clicked 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' not all flydraw objects can be set clickable</li></ul>
*/
switch(type){
case END:
finished = 1;
done = TRUE;
break;
case 0:
sync_input(infile);
break;
case COMMENT:
sync_input(infile);
break;
case EMPTY:
sync_input(infile);
break;
case SIZE:
/*
@size width,height
@set canvas size in pixels
@mandatory first command
*/
found_size_command = TRUE;
xsize = (int)(abs(round(get_real(infile,0)))); /* just to be sure that sizes > 0 */
ysize = (int)(abs(round(get_real(infile,1))));
/* sometimes we want xrange / yrange to be in pixels...without telling x/y-range */
xmin = 0;xmax = xsize;
ymin = ysize;ymax = 0;
/*
The sequence in which stuff is finally printed is important !!
for example, when writing a 'include.js" the may not be a "script tag <script>" etc etc
*/
fprintf(stdout,"\n<script type=\"text/javascript\">var wims_status = \"$status\";</script>\n\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\"></div>\n",canvas_root_id,xsize,ysize,canvas_root_id,canvas_root_id);
fprintf(js_include_file,"\n\n");
fprintf(stdout,"\n<script type=\"text/javascript\" src=\"%s\"></script>\n",getfile_cmd);
fprintf(js_include_file,"var wims_canvas_function%d = function(){\n\nvar xsize = %d;var ysize = %d;var canvas_div = document.getElementById(\"canvas_div%d\");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;};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;};function x2px(x){return x*xsize/(xmax - xmin) - xsize*xmin/(xmax - xmin);};function y2px(y){return -1*y*ysize/(ymax - ymin) + ymax*ysize/(ymax - ymin);};function px2x(px){return (Math.round((px*(xmax - xmin)/xsize + xmin)*precision))/precision;};function px2y(py){return (Math.round((ymax -py*(ymax - ymin)/ysize)*precision))/precision;};function scale_x_radius(rx){return parseInt(x2px(rx) - x2px(0));};function scale_y_radius(ry){return parseInt(y2px(ry) - y2px(0));};function distance(x1,y1,x2,y2){return parseInt(Math.sqrt( (x1-x2)*(x1-x2) + (y1-y2)*(y1-y2) ));};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) ));};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;};var x_strings = null;var y_strings = null;var use_pan_and_zoom = 0;var use_snap_to_grid = 0;\n",canvas_root_id,xsize,ysize,canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
/* default add the drag code : nearly always used ...*/
add_drag_code(js_include_file,DRAG_CANVAS,canvas_root_id);
break;
case XRANGE:
/*
@ xrange xmin,xmax
@ if not given: 0,xsize (eg in pixels)
*/
for(i = 0 ; i<2; i++){
switch(i){
case 0: xmin = get_real(infile,0);break;
case 1: xmax = get_real(infile,1);break;
default: break;
}
}
if(xmin >= xmax){canvas_error(" xrange is not OK : xmin < xmax !\n");}
fprintf(js_include_file,"var xmin = %f;var xmax = %f;",xmin,xmax);
break;
case YRANGE:
/*
@ yrange ymin,ymax
@ if not given 0,ysize (eg in pixels)
*/
for(i = 0 ; i<2; i++){
switch(i){
case 0: ymin = get_real(infile,0);break;
case 1: ymax = get_real(infile,1);break;
default: break;
}
}
if(ymin >= ymax){canvas_error(" yrange is not OK : ymin < ymax !\n");}
fprintf(js_include_file,"var ymin = %f;var ymax = %f;",ymin,ymax);
break;
case TRANGE:
/*
@ trange tmin,tmax
@ default -2,2
*/
use_parametric = TRUE;
for(i = 0 ; i<2; i++){
switch(i){
case 0: tmin = get_real(infile,0);break;
case 1: tmax = get_real(infile,1);break;
default: break;
}
}
if(tmin >= tmax ){canvas_error(" trange is not OK : tmin < tmax!\n");}
break;
case LINEWIDTH:
/*
@ linewidth int
@ default 1
*/
line_width = (int) (get_real(infile,1));
break;
case ARROWHEAD:
/*
@ arrowhead int
@ default 8 (pixels)
*/
arrow_head = (int) (get_real(infile,1));
break;
case CROSSHAIRSIZE:
/*
@ crosshairsize int
@ default 10 (px)
*/
crosshair_size = (int) (get_real(infile,1));
break;
case CROSSHAIR:
/*
@ crosshair x,y,color
@ draw a single crosshair point at (x;y) in color 'color'
@ use command 'crosshairsize int' and / or 'linewidth int' to adust
@ may be set draggable / onclick
*/
for(i=0;i<3;i++){
switch(i){
case 0: double_data[0] = get_real(infile,0);break; /* x */
case 1: double_data[1] = get_real(infile,0);break; /* y */
case 2: stroke_color = get_color(infile,1);/* name or hex color */
decimals = find_number_of_digits(precision);
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\"));\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);
click_cnt++;reset();
break;
default:break;
}
}
break;
case CROSSHAIRS:
/*
@ crosshairs color,x1,y1,x2,y2,...,x_n,y_n
@ draw multiple crosshair points at given coordinates in color 'color'
@ use command 'crosshairsize int' and / or 'linewidth int' to adust
@ may be set draggable / onclick individually (!)
*/
stroke_color=get_color(infile,0); /* how nice: now the color comes first...*/
fill_color = stroke_color;
i=0;
while( ! done ){ /* get next item until EOL*/
if(i > MAX_INT - 1){canvas_error("to many points in argument: repeat command multiple times to fit");}
if(i%2 == 0 ){
double_data[i] = get_real(infile,0); /* x */
}
else
{
double_data[i] = get_real(infile,1); /* y */
}
i++;
}
decimals = find_number_of_digits(precision);
for(c=0 ; c < i-1 ; c = c+2){
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\"));\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);
click_cnt++;
}
reset();
break;
case POINT:
/*
@ point x,y,color
@ draw a single point at (x;y) in color 'color'
@ use command 'linewidth int' to adust size
@ may be set draggable / onclick
@ will not resize on zooming (command 'circle x,y,r,color' will resize on zooming)
*/
for(i=0;i<3;i++){
switch(i){
case 0: double_data[0] = get_real(infile,0);break; /* x */
case 1: double_data[1] = get_real(infile,0);break; /* y */
case 2: stroke_color = get_color(infile,1);/* name or hex color */
decimals = find_number_of_digits(precision);
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\"));\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);
click_cnt++;break;
default: break;
}
}
reset();
break;
case POINTS:
/*
@ points color x1,y1,x2,y2,...,x_n,y_n
@ draw multiple points at given coordinates in color 'color'
@ use command 'linewidth int' to adust size
@ may be set draggable / onclick individually (!)
*/
stroke_color=get_color(infile,0); /* how nice: now the color comes first...*/
fill_color = stroke_color;
i=0;
while( ! done ){ /* get next item until EOL*/
if(i > MAX_INT - 1){canvas_error("to many points in argument: repeat command multiple times to fit");}
if(i%2 == 0 ){
double_data[i] = get_real(infile,0); /* x */
}
else
{
double_data[i] = get_real(infile,1); /* y */
}
i++;
}
decimals = find_number_of_digits(precision);
for(c = 0 ; c < i-1 ; c = c+2){
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\"));\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);
click_cnt++;
}
reset();
break;
case SEGMENT:
/*
@ segment x1,y1,x2,y2,color
@ draw a line segment between points (x1:y1)--(x2:y2) in color 'color'
@ may be set draggable / onclick
*/
for(i=0;i<5;i++) {
switch(i){
case 0: double_data[0]= get_real(infile,0);break; /* x1-values */
case 1: double_data[1]= get_real(infile,0);break; /* y1-values */
case 2: double_data[2]= get_real(infile,0);break; /* x2-values */
case 3: double_data[3]= get_real(infile,0);break; /* y2-values */
case 4: stroke_color=get_color(infile,1);/* name or hex color */
decimals = find_number_of_digits(precision);
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\"));\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);
click_cnt++;reset();
break;
default: break;
}
}
break;
case LINE:
/*
@ line x1,y1,x2,y2,color
@ draw a line through points (x1:y1)--(x2:y2) in color 'color'
@ or use command 'curve color,formula' to draw the line (uses more points to draw the line; is however better draggable)
@ may be set draggable / onclick
*/
for(i=0;i<5;i++){
switch(i){
case 0: double_data[10]= get_real(infile,0);break; /* x-values */
case 1: double_data[11]= get_real(infile,0);break; /* y-values */
case 2: double_data[12]= get_real(infile,0);break; /* x-values */
case 3: double_data[13]= get_real(infile,0);break; /* y-values */
case 4: stroke_color=get_color(infile,1);/* name or hex color */
if( double_data[10] == double_data[12] ){ /* vertical line*/
double_data[1] = xmin;
double_data[3] = ymax;
double_data[0] = double_data[10];
double_data[2] = double_data[10];
}
else
{
if( double_data[11] == double_data[13] ){ /* horizontal line */
double_data[1] = double_data[11];
double_data[3] = double_data[11];
double_data[0] = ymin;
double_data[2] = xmax;
}
else
{
/* m */
double_data[5] = (double_data[13] - double_data[11]) /(double_data[12] - double_data[10]);
/* q */
double_data[6] = double_data[11] - ((double_data[13] - double_data[11]) /(double_data[12] - double_data[10]))*double_data[10];
/*xmin,m*xmin+q,xmax,m*xmax+q*/
double_data[1] = (double_data[5])*(xmin)+(double_data[6]);
double_data[3] = (double_data[5])*(xmax)+(double_data[6]);
double_data[0] = xmin;
double_data[2] = xmax;
}
}
decimals = find_number_of_digits(precision);
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\"));\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);
click_cnt++;reset();
break;
}
}
break;
case HLINE:
/*
@ hline x,y,color
@ draw a horizontal line through point (x:y) in color 'color'
@ or use command 'curve color,formula' to draw the line (uses more points to draw the line; is however better draggable)
@ may be set draggable / onclick
*/
for(i=0;i<3;i++) {
switch(i){
case 0: double_data[0] = get_real(infile,0);break; /* x-values */
case 1: double_data[1] = get_real(infile,0);break; /* y-values */
case 2: stroke_color = get_color(infile,1);/* name or hex color */
double_data[3] = double_data[1];
decimals = find_number_of_digits(precision);
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\"));\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);
click_cnt++;reset();
break;
}
}
break;
case VLINE:
/*
@ vline x,y,color
@ draw a vertical line through point (x:y) in color 'color'
@ may be set draggable / onclick
*/
for(i=0;i<3;i++) {
switch(i){
case 0: double_data[0] = get_real(infile,0);break; /* x-values */
case 1: double_data[1] = get_real(infile,0);break; /* y-values */
case 2: stroke_color=get_color(infile,1);/* name or hex color */
double_data[2] = double_data[0];
decimals = find_number_of_digits(precision);
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\"));\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);
click_cnt++;reset();
break;
}
}
break;
case SQUARE:
/*
@ square x,y,side,color
@ draw a square with left top corner (x:y) with side 'side' in color 'color'
@ use command 'fsquare x,y,side,color' for a filled square
@ use command/keyword 'filled' before command 'square x,y,side,color'
@ use command 'fillcolor color' before 'fsquare' to set the fill colour.
@ may be set draggable / onclick
*/
for(i=0;i<5;i++){
switch(i){
case 0:double_data[0] = get_real(infile,0);break; /* x-values */
case 1:double_data[1] = get_real(infile,0);break; /* y-values */
case 2:double_data[2] = get_real(infile,0);
double_data[3] = double_data[2];
break; /* x-values */
case 3:stroke_color = get_color(infile,1);/* name or hex color */
decimals = find_number_of_digits(precision);
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\"));\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);
click_cnt++;reset();
break;
}
}
break;
case ROUNDRECT:
/*
@ roundrect x1,y1,x2,y2,radius,color
@ use command 'froundrect x1,y1,x2,y2,radius,color' for a filled rectangle
@ use command/keyword 'filled' before command 'roundrect x1,y1,x2,y2,radius,color'
@ use command 'fillcolor color' before 'froundrect' to set the fill colour.
@ may be set draggable / onclick
*/
for(i=0;i<6;i++){
switch(i){
case 0:double_data[0] = get_real(infile,0);break; /* x-values */
case 1:double_data[1] = get_real(infile,0);break; /* y-values */
case 2:double_data[2] = get_real(infile,0);break; /* x-values */
case 3:double_data[3] = get_real(infile,0);break; /* y-values */
case 4:int_data[0] = (int) (get_real(infile,0));break; /* radius value in pixels */
case 5:stroke_color = get_color(infile,1);/* name or hex color */
decimals = find_number_of_digits(precision);
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\"));\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);
click_cnt++;reset();
break;
}
}
break;
case RECT:
/*
@ rect x1,y1,x2,y2,color
@ use command 'rect x1,y1,x2,y2,color' for a filled rectangle
@ use command/keyword 'filled' before command 'rect x1,y1,x2,y2,color'
@ use command 'fillcolor color' before 'frect' to set the fill colour.
@ may be set draggable / onclick
*/
for(i=0;i<5;i++){
switch(i){
case 0:double_data[0] = get_real(infile,0);break; /* x-values */
case 1:double_data[1] = get_real(infile,0);break; /* y-values */
case 2:double_data[2] = get_real(infile,0);break; /* x-values */
case 3:double_data[3] = get_real(infile,0);break; /* y-values */
case 4:stroke_color = get_color(infile,1);/* name or hex color */
decimals = find_number_of_digits(precision);
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\"));\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);
click_cnt++;reset();
break;
}
}
break;
case POLYLINE:
/*
@ polyline color,x1,y1,x2,y2...x_n,y_n
@ may be set draggable / onclick
*/
stroke_color=get_color(infile,0); /* how nice: now the color comes first...*/
i=0;
c=0;
while( ! done ){ /* get next item until EOL*/
if(i > MAX_INT - 1){canvas_error("to many points in argument: repeat command multiple times to fit");}
for( c = 0 ; c < 2; c++){
if(c == 0 ){
double_data[i] = get_real(infile,0);
i++;
}
else
{
double_data[i] = get_real(infile,1);
i++;
}
}
}
/* draw path : not closed & not filled */
decimals = find_number_of_digits(precision);
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\"));\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);
click_cnt++;reset();
break;
case POLY:
/*
@ poly color,x1,y1,x2,y2...x_n,y_n
@ draw closed polygon
@ use command 'fpoly' to fill it, use command 'fillcolor color' to set the fill color
@ may be set draggable / onclick
*/
stroke_color=get_color(infile,0); /* how nice: now the color comes first...*/
i=0;
c=0;
while( ! done ){ /* get next item until EOL*/
if(i > MAX_INT - 1){canvas_error("to many points in argument: repeat command multiple times to fit");}
for( c = 0 ; c < 2; c++){
if(c == 0 ){
double_data[i] = get_real(infile,0);
i++;
}
else
{
double_data[i] = get_real(infile,1);
i++;
}
}
}
/* draw path : closed & optional filled */
decimals = find_number_of_digits(precision);
string_length = snprintf(NULL,0,"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\"));\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);
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\"));\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);
click_cnt++;reset();
break;
case ARC:
/*
@ arc xc,yc,width,height,start_angle,end_angle,color
@ can not be set "onclick" or "drag xy"
@ attention: width == height == radius in pixels)
*/
for(i=0;i<7;i++){
switch(i){
case 0:double_data[0] = get_real(infile,0);break; /* x-values */
case 1:double_data[1] = get_real(infile,0);break; /* y-values */
case 2:int_data[0] = (int)(get_real(infile,0));break; /* width in pixels ! */
case 3:int_data[1] = (int)(get_real(infile,0));break; /* height in pixels ! */
case 4:double_data[2] = get_real(infile,0);break; /* start angle in degrees */
case 5:double_data[3] = get_real(infile,0);break; /* end angle in degrees */
case 6:stroke_color = get_color(infile,1);/* name or hex color */
/* in Shape library:
x[0] = x[1] = xc
y[0] = y[1] = yc
w[0] = w[1] = radius = width = height
h[0] = start_angle ; h[1] = end_engle
*/
decimals = find_number_of_digits(precision);
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\"));\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);
reset();
break;
}
}
break;
case ELLIPSE:
/*
@ ellipse xc,yc,radius_x,radius_y,color
@ a ellipse with center xc/yc in x/y-range
@ radius_x and radius_y are in pixels
@ may be set draggable / onclick
@ will shrink / expand on zoom out / zoom in
*/
for(i=0;i<5;i++){
switch(i){
case 0:double_data[0] = get_real(infile,0);break; /* x-values */
case 1:double_data[1] = get_real(infile,0);break; /* y-values */
case 2:double_data[2] = get_real(infile,0);break; /* rx -> px */
case 3:double_data[3] = get_real(infile,0);break; /* ry -> px */
case 4:stroke_color = get_color(infile,1);/* name or hex color */
decimals = find_number_of_digits(precision);
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\"));\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);
click_cnt++;reset();
break;
}
}
break;
case DASHTYPE:
/*
@ dashtype int ,int
@ When dashed is set, the objects will be drawn with this dashtyp
@ default value "dashtype 2,2"
*/
for(i=0;i<2;i++){
switch(i){
case 0 : dashtype[0] = (int) line_width*( get_real(infile,0)) ; break;
case 1 : dashtype[1] = (int) line_width*( get_real(infile,1)) ; break;
}
}
break;
case CIRCLE:
/*
@ circle xc,yc,width (2*r in pixels),color
@ use command 'fcircle xc,yc,d,color' or command 'filled' for a filled disk
@ use command 'fillcolor color' to set the fillcolor
@ may be set draggable / onclick
@ will shrink / expand on zoom out / zoom in
*/
for(i=0;i<4;i++){
switch(i){
case 0: double_data[0] = get_real(infile,0);break; /* x */
case 1: double_data[1] = get_real(infile,0);break; /* y */
case 2: double_data[2] = px2x((get_real(infile,0))/2) - px2x(0);break; /* radius in 'dx' xrange*/
case 3: stroke_color = get_color(infile,1);/* name or hex color */
decimals = find_number_of_digits(precision);
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\"));\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);
click_cnt++;reset();
break;
}
}
break;
case RAYS:
/*
@ rays color,xc,yc,x1,y1,x2,y2,x3,y3...x_n,y_n
@ draw rays in color 'color' and center (xc:yc)
@ may be set draggable or onclick (the complete object, not an indiviual ray !)
*/
stroke_color=get_color(infile,0);
i=0;
while( ! done ){ /* get next until EOL*/
if(i > MAX_INT - 1){canvas_error("to much rays in argument: repeat command multiple times to fit");}
if( i > 3){
double_data[i++] = double_data[0];
double_data[i++] = double_data[1];
}
for(c=0; c<=1 ;c++){ /* switch x2px / y2px */
double_data[i++]= get_double(infile,c,1);
}
}
decimals = find_number_of_digits(precision);
for(c=0; c<i;c = c+4){
click_cnt++;
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\"));\n",click_cnt,onclick,drag_type,decimals,double_data[0],decimals,double_data[c+2],decimals,double_data[0],decimals,double_data[c+3],line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,0,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family);
}
reset();
break;
case ARROW:
/*
@ arrow x1,y1,x2,y2,h,color
@ draw a single headed arrow/vector from (x1:y1) to (x2:y2) with arrowhead size h in px and in color 'color'
@ use command 'linewidth int' to adjust thickness of the arrow
@ may be set draggable / onclick
*/
for(i=0;i<6;i++){
switch(i){
case 0: double_data[0] = get_real(infile,0);break; /* x */
case 1: double_data[1] = get_real(infile,0);break; /* y */
case 2: double_data[2] = get_real(infile,0);break; /* x */
case 3: double_data[3] = get_real(infile,0);break; /* y */
case 4: arrow_head = (int) get_real(infile,0);break;/* h */
case 5: stroke_color = get_color(infile,1);/* name or hex color */
decimals = find_number_of_digits(precision);
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\"));\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);
click_cnt++;
reset();
break;
}
}
break;
case ARROW2:
/*
@ arrow2 x1,y1,x2,y2,h,color
@ draw a double headed arrow/vector from (x1:y1) to (x2:y2) with arrowhead size h in px and in color 'color'
@ use command 'arrowhead int' to adjust the arrow head size
@ use command 'linewidth int' to adjust thickness of the arrow
@ may be set draggable / onclick
*/
for(i=0;i<6;i++){
switch(i){
case 0: double_data[0] = get_real(infile,0);break; /* x */
case 1: double_data[1] = get_real(infile,0);break; /* y */
case 2: double_data[2] = get_real(infile,0);break; /* x */
case 3: double_data[3] = get_real(infile,0);break; /* y */
case 4: arrow_head = (int) get_real(infile,0);break;/* h */
case 5: stroke_color = get_color(infile,1);/* name or hex color */
decimals = find_number_of_digits(precision);
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\"));\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);
click_cnt++;reset();
break;
}
}
break;
case PARALLEL:
/*
@ parallel x1,y1,x2,y2,dx,dy,n,[colorname or #hexcolor]
@ can not be set "onclick" or "drag xy"
*/
for( i = 0;i < 8; i++ ){
switch(i){
case 0: double_data[0] = get_real(infile,0);break; /* x1-values -> x-pixels*/
case 1: double_data[1] = get_real(infile,0);break; /* y1-values -> y-pixels*/
case 2: double_data[2] = get_real(infile,0);break; /* x2-values -> x-pixels*/
case 3: double_data[3] = get_real(infile,0);break; /* y2-values -> y-pixels*/
case 4: double_data[4] = xmin + get_real(infile,0);break; /* xv -> x-pixels */
case 5: double_data[5] = ymax + get_real(infile,0);break; /* yv -> y-pixels */
case 6: int_data[0] = (int) (get_real(infile,0));break; /* n */
case 7: stroke_color=get_color(infile,1);/* name or hex color */
decimals = find_number_of_digits(precision);
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\"));\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);
click_cnt++;reset();
break;
default: break;
}
}
break;
case TRIANGLE:
/*
@triangle x1,y1,x2,y2,x3,y3,color
@may be set draggable / onclic
*/
for(i=0;i<7;i++){
switch(i){
case 0: double_data[0] = get_real(infile,0);break; /* x */
case 1: double_data[1] = get_real(infile,0);break; /* y */
case 2: double_data[2] = get_real(infile,0);break; /* x */
case 3: double_data[3] = get_real(infile,0);break; /* y */
case 4: double_data[4] = get_real(infile,0);break; /* x */
case 5: double_data[5] = get_real(infile,0);break; /* y */
case 6: stroke_color = get_color(infile,1);/* name or hex color */
decimals = find_number_of_digits(precision);
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\"));\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);
click_cnt++;reset();
break;
default: break;
}
}
break;
case LATTICE:
/*
@lattice x0,y0,xv1,yv1,xv2,yv2,n1,n2,color
@can not be set "onclick" or "drag xy"
*/
if( js_function[DRAW_LATTICE] != 1 ){ js_function[DRAW_LATTICE] = 1;}
for( i = 0; i<9; i++){
switch(i){
case 0: int_data[0] = x2px(get_real(infile,0));break; /* x0-values -> x-pixels*/
case 1: int_data[1] = y2px(get_real(infile,0));break; /* y0-values -> y-pixels*/
case 2: int_data[2] = (int) (get_real(infile,0));break; /* x1-values -> x-pixels*/
case 3: int_data[3] = (int) (get_real(infile,0));break; /* y1-values -> y-pixels*/
case 4: int_data[4] = (int) (get_real(infile,0));break; /* x2-values -> x-pixels*/
case 5: int_data[5] = (int) (get_real(infile,0));break; /* y2-values -> y-pixels*/
case 6: int_data[6] = (int) (get_real(infile,0));break; /* n1-values */
case 7: int_data[7] = (int) (get_real(infile,0));break; /* n2-values */
case 8: stroke_color=get_color(infile,1);
decimals = find_number_of_digits(precision);
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);
check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
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);
add_to_buffer(tmp_buffer);
break;
default:break;
}
}
reset();
break;
case SNAPTOGRID:
/*
@ snaptogrid
@ keyword (no arguments rewquired) needs to be defined before command 'userdraw' and after command 'grid'
@ in case of userdraw the drawn points will snap to xmajor / ymajor grid
@ if xminor / yminor is defined, the drawing will snap to xminor/yminor
*/
fprintf(js_include_file,"\nuse_snap_to_grid = 1;\nfunction snap_to_x(x){return x2px(snap_x*(Math.round(snap_x*px2x(x))));};\nfunction snap_to_y(y){return y2px(snap_y*(Math.round(snap_y*px2y(y))));};\n");
break;
case USERDRAW:
/*
@ userdraw object_type,color
@ 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>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>
@ note: mouselisteners are only active if "$status != done " (eg only drawing in an active/non-finished exercise) to overrule use command/keyword "status" (no arguments required)
@ note: object_type text: Any string or multiple strings may be placed anywhere on the canvas. while typing the background of every typed char will be lightblue..."backspace / delete / esc" will remove typed text. You will need to hit "enter" to add the text to the array "userdraw_txt()" : lightblue background will disappear 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. Use commands 'fontsize' and 'fontfamily' to control the text appearance
@ note: object_type polygone: Will be finished (the object is closed) when clicked on the first point of the polygone again.
@ 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)
@ use command "filled", "opacity int,int" and "fillcolor color" to trigger coloured filling of fillable objects
@ use command "dashed" and/or "dashtype int,int" to trigger dashing
@ use command "debug" to view the output of javascript funcion read_canvas();
@ use command "replyformat int" to control / adjust output formatting of javascript function read_canvas();
@ may be combined with onclick or drag xy of other components of flyscript objects (although not very usefull...)
*/
if( use_userdraw == TRUE ){ /* only one object type may be drawn*/
canvas_error("Only one userdraw primitive may be used: read documentation !!");
}
use_userdraw = TRUE;
fprintf(js_include_file,"\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\n",canvas_root_id,DRAW_CANVAS,use_dashed,dashtype[0],dashtype[1],dashtype[0],dashtype[1]);
draw_type = get_string_argument(infile,0);
stroke_color = get_color(infile,1);
if( strcmp(draw_type,"point") == 0 ){
if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
if(reply_format < 1 ){reply_format = 8;}
/* 7 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n in x/y-range */
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);
}
else
if( strcmp(draw_type,"points") == 0 ){
if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
if(reply_format < 1 ){reply_format = 8;}
/* 7 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n in x/y-range */
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);
}
else
if( strcmp(draw_type,"segment") == 0 ){
if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
if( js_function[DRAW_SEGMENTS] != 1 ){ js_function[DRAW_SEGMENTS] = 1;}
if(reply_format < 1){reply_format = 11;}
add_js_segments(js_include_file,1,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
}
else
if( strcmp(draw_type,"segments") == 0 ){
if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
if( js_function[DRAW_SEGMENTS] != 1 ){ js_function[DRAW_SEGMENTS] = 1;}
if(reply_format < 1){reply_format = 11;}
add_js_segments(js_include_file,2,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
}
else
if( strcmp(draw_type,"circle") == 0 ){
if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
if(reply_format < 1){reply_format = 10;}
/* 9 = x1:y1:r1,x2:y2:r2,x3:y3:r3,x4:y4:r3...x_n:y_n:r_n in x/y-range */
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]);
}
else
if( strcmp(draw_type,"circles") == 0 ){
if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
if(reply_format < 1){reply_format = 10;}
/* 9 = x1:y1:r1,x2:y2:r2,x3:y3:r3,x4:y4:r3...x_n:y_n:r_n in x/y-range */
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]);
}
else
if(strcmp(draw_type,"crosshair") == 0 ){
if( js_function[DRAW_CROSSHAIRS] != 1 ){ js_function[DRAW_CROSSHAIRS] = 1;}
if(reply_format < 1){reply_format = 8;}
/* 7 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n in x/y-range */
add_js_crosshairs(js_include_file,1,draw_type,line_width,crosshair_size ,stroke_color,stroke_opacity);
}
else
if(strcmp(draw_type,"crosshairs") == 0 ){
if( js_function[DRAW_CROSSHAIRS] != 1 ){ js_function[DRAW_CROSSHAIRS] = 1;}
if(reply_format < 1){reply_format = 8;}
/* 7 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n in x/y-range */
add_js_crosshairs(js_include_file,2,draw_type,line_width,crosshair_size ,stroke_color,stroke_opacity);
}
else
if(strcmp(draw_type,"freehandline") == 0 ){
if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
if(reply_format < 1){reply_format = 6;}
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]);
}
else
if(strcmp(draw_type,"freehandlines") == 0 ){
if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
if(reply_format < 1){reply_format = 6;}
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]);
}
else
if(strcmp(draw_type,"path") == 0 ){
if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
if(reply_format < 1){reply_format = 6;}
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]);
}
else
if(strcmp(draw_type,"paths") == 0 ){
if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
if(reply_format < 1){reply_format = 6;}
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]);
}
else
if(strcmp(draw_type,"arrows") == 0 ){
if( js_function[DRAW_ARROWS] != 1 ){ js_function[DRAW_ARROWS] = 1;}
if(reply_format < 1){reply_format = 11;}
add_js_arrows(js_include_file,2,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1],arrow_head);
}
else
if(strcmp(draw_type,"arrow") == 0 ){
if( js_function[DRAW_ARROWS] != 1 ){ js_function[DRAW_ARROWS] = 1;}
if(reply_format < 1){reply_format = 11;}
add_js_arrows(js_include_file,1,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1],arrow_head);
}
else
if(strcmp(draw_type,"polygon") == 0){
if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
if(reply_format < 1){reply_format = 2;}
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]);
}
else
if(strncmp(draw_type,"poly",4) == 0){
if(strlen(draw_type) < 5){canvas_error("use command \"userdraw poly[3-9],color\" eg userdraw poly6,blue");}
if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
if(reply_format < 1){reply_format = 2;}
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]);
}
else
if(strcmp(draw_type,"triangle") == 0){
if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
if(reply_format < 1){reply_format = 2;}
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]);
}
else
if( strcmp(draw_type,"line") == 0 ){
if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
if( js_function[DRAW_LINES] != 1 ){ js_function[DRAW_LINES] = 1;}
if(reply_format < 1){reply_format = 11;}
add_js_lines(js_include_file,1,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
}
else
if( strcmp(draw_type,"lines") == 0 ){
if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
if( js_function[DRAW_LINES] != 1 ){ js_function[DRAW_LINES] = 1;}
if(reply_format < 1){reply_format = 11;}
add_js_lines(js_include_file,2,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
}
else
if( strcmp(draw_type,"rects") == 0){
if( js_function[DRAW_RECTS] != 1 ){ js_function[DRAW_RECTS] = 1;}
if(reply_format < 1){reply_format = 2;}
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]);
}
else
if( strcmp(draw_type,"roundrects") == 0){
if( js_function[DRAW_ROUNDRECTS] != 1 ){ js_function[DRAW_ROUNDRECTS] = 1;}
if(reply_format < 1){reply_format = 2;}
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]);
}
else
if( strcmp(draw_type,"rect") == 0){
if( js_function[DRAW_RECTS] != 1 ){ js_function[DRAW_RECTS] = 1;}
if(reply_format < 1){reply_format = 2;}
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]);
}
else
if( strcmp(draw_type,"roundrect") == 0){
if( js_function[DRAW_ROUNDRECTS] != 1 ){ js_function[DRAW_ROUNDRECTS] = 1;}
if(reply_format < 1){reply_format = 2;}
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]);
}
else
if( strcmp(draw_type,"text") == 0){
if( js_function[DRAW_TEXTS] != 1 ){ js_function[DRAW_TEXTS] = 1;}
if(reply_format < 1){reply_format = 17;}
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);
}
else
{
canvas_error("unknown drawtype or typo? ");
}
reset();
break;
case PLOTSTEPS:
/*
@ plotsteps a_number
@ default 150
@ use with care !
*/
plot_steps = (int) (get_real(infile,1));
break;
case FONTSIZE:
/*
@fontsize font_size
@default value 12
*/
font_size = (int) (get_real(infile,1));
break;
case FONTCOLOR:
/*
@fontcolor color
@color: hexcolor or colorname
@default: black
@example usage: x/y-axis text
*/
font_color = get_color(infile,1);
break;
case ANIMATE:
/*
@animate type
@type may be "point" (nothing else , yet...)
@the point is a filled rectangle ; adjust colour with command 'fillcolor colorname/hexnumber'
@will animate a point on the next plot/curve command
@the curve will not be draw
@moves repeatedly from xmin to xmax
*/
if( strstr(get_string(infile,1),"point") != 0 ){animation_type = 15;}else{canvas_error("the only animation type (for now) is \"point\"...");}
break;
case CURVE:
/*
@curve color,formula(x)
@plot color,formula(x)
@use command trange before command curve / plot (trange -pi,pi) curve color,formula1(t),formula2(t)
@use command "precision" to increase the number of digits of the plotted points
@use command "plotsteps" to increase / decrease the amount of plotted points (default 150)
@may be set draggable / onclick
*/
if( use_parametric == TRUE ){ /* parametric color,fun1(t),fun2(t)*/
use_parametric = FALSE;
stroke_color = get_color(infile,0);
char *fun1 = get_string_argument(infile,0);
char *fun2 = get_string_argument(infile,1);
if( strlen(fun1) == 0 || strlen(fun2) == 0 ){canvas_error("parametric functions are NOT OK !");}
use_parametric = FALSE;
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\"));\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);
click_cnt++;
}
else
{
stroke_color = get_color(infile,0);
char *fun1 = get_string_argument(infile,1);
if( strlen(fun1) == 0 ){canvas_error("function is NOT OK !");}
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\"));\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);
click_cnt++;
}
animation_type = 9;/* rest to curve plotting without animation */
reset();
break;
case FLY_TEXT:
/*
@ text fontcolor,x,y,font,text_string
@ font may be described by keywords : giant,huge,normal,small,tiny
@ use command 'fontsize' to increase base fontsize for the keywords
@ may be set "onclick" or "drag xy"
@ backwards compatible with flydraw
@ unicode supported: text red,0,0,huge,\\u2232
@ use command 'string' and 'fontfamily' for a more fine grained control over html5 canvas text element
@ Avoid mixing old flydraw commands 'text' 'textup' with new canvasdraw commands 'string' stringup' If the fontfamily was set completely like "fontfamily italic 24px Ariel". In that case rested 'fontfamily' to something lke 'fontfamily Ariel' before the old flydraw commands.
*/
for(i = 0; i < 5 ;i++){
switch(i){
case 0: stroke_color = get_color(infile,0);break;/* font_color == stroke_color name or hex color */
case 1: double_data[0] = get_real(infile,0);break; /* x */
case 2: double_data[1] = get_real(infile,0);break; /* y */
case 3: fly_font = get_string_argument(infile,0);
if(strcmp(fly_font,"giant") == 0){
font_size = (int)(font_size + 24);
}
else
{
if(strcmp(fly_font,"huge") == 0){
font_size = (int)(font_size + 14);
}
else
{
if(strcmp(fly_font,"large") == 0){
font_size = (int)(font_size + 6);
}
else
{
if(strcmp(fly_font,"small") == 0){
font_size = (int)(font_size - 4);
if(font_size<0){font_size = 8;}
}
}
}
}
break; /* font_size ! */
case 4:
temp = get_string_argument(infile,1);
decimals = find_number_of_digits(precision);
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\"));\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);
click_cnt++;reset();break;
default:break;
}
}
break;
case FLY_TEXTUP:
/*
@ textup fontcolor,x,y,font,text_string
@ can not be set "onclick" or "drag xy" (because of translaton matrix...mouse incompatible)
@ font may be described by keywords : giant,huge,normal,small,tiny
@ use command 'fontsize' to increase base fontsize for the keywords
@ backwards compatible with flydraw
@ unicode supported: textup red,0,0,huge,\\u2232
@ use command 'stringup' and 'fontfamily' for a more fine grained control over html5 canvas text element
@ Avoid mixing old flydraw commands 'text' 'textup' with new canvasdraw commands 'string' stringup' If the fontfamily was set completely like "fontfamily italic 24px Ariel". In that case rested 'fontfamily' to something lke 'fontfamily Ariel' before the old flydraw commands.
*/
if( js_function[DRAW_TEXTS] != 1 ){ js_function[DRAW_TEXTS] = 1;}
for(i = 0; i<5 ;i++){
switch(i){
case 0: font_color = get_color(infile,0);break;/* name or hex color */
case 1: int_data[0] = x2px(get_real(infile,0));break; /* x */
case 2: int_data[1] = y2px(get_real(infile,0));break; /* y */
case 3: fly_font = get_string_argument(infile,0);
if(strcmp(fly_font,"giant") == 0){
font_size = (int)(font_size + 24);
}
else
{
if(strcmp(fly_font,"huge") == 0){
font_size = (int)(font_size + 14);
}
else
{
if(strcmp(fly_font,"large") == 0){
font_size = (int)(font_size + 6);
}
else
{
if(strcmp(fly_font,"small") == 0){
font_size = (int)(font_size - 4);
if(font_size<0){font_size = 8;}
}
}
}
}
break; /* font_size ! */
case 4:
decimals = find_number_of_digits(precision);
temp = get_string_argument(infile,1);
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);
check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
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);
add_to_buffer(tmp_buffer);
break;
default:break;
}
}
reset();
break;
case FONTFAMILY:
/*
@ fontfamily font_description
@ set the font family; for browsers that support it
@ font_description: Ariel ,Courier, Helvetica etc
@ in case commands 'string color,x,y,the string' 'stringup color,x,y,rotation,the string' fontfamily can be something like: italic 34px Ariel
@ use correct syntax : 'font style' 'font size'px 'fontfamily'
*/
font_family = get_string(infile,1);
break;
case STRINGUP:
/*
@ stringup color,x,y,rotation_degrees,the text string
@ can not be set "onclick" or "drag xy" (because of translaton matrix...mouse incompatible)
@ unicode supported: stringup red,0,0,45,\\u2232
@ use a command like 'fontfamily bold 34px Courier' to set fonts on browser that support font change
*/
if( js_function[DRAW_TEXTS] != 1 ){ js_function[DRAW_TEXTS] = 1;} /* can not be added to shape library : rotate / mouse issues */
for(i=0;i<6;i++){
switch(i){
case 0: font_color = get_color(infile,0);break;/* name or hex color */
case 1: int_data[0] = x2px(get_real(infile,0));break; /* x */
case 2: int_data[1] = y2px(get_real(infile,0));break; /* y */
case 3: double_data[0] = get_real(infile,0);break;/* rotation */
case 4: decimals = find_number_of_digits(precision);
temp = get_string_argument(infile,1);
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);
check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
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);
add_to_buffer(tmp_buffer);
break;
default:break;
}
}
reset();
break;
case STRING:
/*
@ string color,x,y,the text string
@ may be set "onclick" or "drag xy"
@ unicode supported: string red,0,0,\\u2232
@ use a command like 'fontfamily italic 24px Ariel' to set fonts on browser that support font change
*/
for(i=0;i<5;i++){
switch(i){
case 0: stroke_color = get_color(infile,0);break;/* name or hex color */
case 1: double_data[0] = get_real(infile,0);break; /* x in xrange*/
case 2: double_data[1] = get_real(infile,0);break; /* y in yrange*/
case 3: decimals = find_number_of_digits(precision);
temp = get_string_argument(infile,1);
decimals = find_number_of_digits(precision);
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\"));\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);
click_cnt++;reset();break;
break;
default:break;
}
}
break;
case MATHML:
/*
@ mathml x1,y1,x2,y2,mathml_string
@ mathml will be displayed in a rectangle left top (x1:y1) , right bottom (x2:y2)
@ can be set onclick (however dragging is not supported) javascript:read_dragdrop(); will return click number of mathml-object
@ if inputfields are incorporated in mathml (with id's : id='mathml0',id='mathml1',...id='mathml_n') the user_input values will be read by javascript:read_mathml(); attention: if after this mathml-input object other user-interactions are included, these will read mathml too using "read_canvas();"
@ 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....
*/
if( js_function[DRAW_XML] != 1 ){ js_function[DRAW_XML] = 1;}
for(i=0;i<5;i++){
switch(i){
case 0: int_data[0]=x2px(get_real(infile,0));break; /* x in x/y-range coord system -> pixel width */
case 1: int_data[1]=y2px(get_real(infile,0));break; /* y in x/y-range coord system -> pixel height */
case 2: int_data[2]=x2px(get_real(infile,0)) - int_data[0];break; /* width in x/y-range coord system -> pixel width */
case 3: int_data[3]=y2px(get_real(infile,0)) - int_data[1];break; /* height in x/y-range coord system -> pixel height */
case 4: decimals = find_number_of_digits(precision);
if(onclick == 1 ){ onclick = click_cnt;click_cnt++;}
temp = get_string(infile,1);
if( strstr(temp,"\"") != 0 ){ temp = str_replace(temp,"\"","'"); }
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);
check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
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);
add_to_buffer(tmp_buffer);
/*
in case inputs are present , trigger adding the read_mathml()
if no other reply_format is defined
note: all other reply types will include a reading of elements with id='mathml'+p)
*/
if(strstr(temp,"mathml0") != NULL){
if(reply_format < 1 ){reply_format = 16;} /* no other reply type is defined */
}
break;
default:break;
}
}
reset();
break;
case HTTP:
/*
@http x1,y1,x2,y2,http://some_adress.com
@an active html-page will be displayed in an "iframe" rectangle left top (x1:y1) , right bottom (x2:y2)
@do not use interactivity (or mouse) if the mouse needs to be active in the iframe
@can not be 'set onclick' or 'drag xy'
*/
if( js_function[DRAW_HTTP] != 1 ){ js_function[DRAW_HTTP] = 1;}
for(i=0;i<5;i++){
switch(i){
case 0: int_data[0]=x2px(get_real(infile,0));break; /* x in x/y-range coord system -> pixel width */
case 1: int_data[1]=y2px(get_real(infile,0));break; /* y in x/y-range coord system -> pixel height */
case 2: int_data[2]=x2px(get_real(infile,0)) - int_data[0];break; /* width in x/y-range coord system -> pixel width */
case 3: int_data[3]=y2px(get_real(infile,0)) - int_data[1];break; /* height in x/y-range coord system -> pixel height */
case 4: decimals = find_number_of_digits(precision);
temp = get_string(infile,1);
if(strstr(temp,"\"") != 0 ){ temp = str_replace(temp,"\"","'");}
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);
check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
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);
add_to_buffer(tmp_buffer);
break;
}
}
reset();
break;
case HTML:
/*
@ html x1,y1,x2,y2,html_string
@ all tags are allowed
@ can be set onclick (dragging not supported) javascript:read_dragdrop(); will return click number of mathml-object
@ if inputfields are incorporated (with id's : id='mathml0',id='mathml1',...id='mathml_n') the user_input values will be read by javascript:read_canvas(); If other inputfields (command input / command textarea) or userdraw is performed, these values will NOT be read as well.
note: uses the same code as 'mathml'
*/
break;
case X_AXIS_STRINGS:
/*
@ xaxis num1:string1:num2:string2:num3:string3:num4:string4:....num_n:string_n
@ xaxistext num1:string1:num2:string2:num3:string3:num4:string4:....num_n:string_n
@ use these x-axis values in stead of default xmin...xmax
@ use command "fontcolor", "fontsize" , "fontfamily" to adjust font defaults: black,12,Ariel
@ if the 'x-axis words' are to big amd will overlap, a simple alternating offset will be applied
@ example: size 400,400 xrange 0,13 yrange -100,500 axis xaxis 1:january:2:february:3:march:5:may:6:june:7:july:8:august:9:september:10:october:11:november:12:december #'xmajor' steps should be synchronised with numbers eg. "1" in this example grid 1,100,grey,1,4,6,grey
@ example: size 400,400 xrange -5*pi,5*pi yrange -100,500 axis 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 #'xmajor' steps should be synchronised with numbers eg. "1" in this example grid pi,1,grey,1,3,6,grey
*/
temp = get_string(infile,1);
if( strstr(temp,":") != 0 ){ temp = str_replace(temp,":","\",\"");}
if( strstr(temp,"pi") != 0 ){ temp = str_replace(temp,"pi","(3.1415927)");}/* we need to replace pi for javascript y-value*/
fprintf(js_include_file,"x_strings = [\"%s\"];\n ",temp);
use_axis_numbering = 1;
break;
case Y_AXIS_STRINGS:
/*
@ yaxis num1:string1:num2:string2:num3:string3:num4:string4:....num_n:string_n
@ yaxistext num1:string1:num2:string2:num3:string3:num4:string4:....num_n:string_n
@ use command "fontcolor", "fontsize" , "fontfamily" to adjust font defaults: black,12,Ariel
@ use these y-axis values in stead of default ymin...ymax
@ example: size 400,400 yrange 0,13 xrange -100,500 axis yaxis 1:january:2:february:3:march:5:may:6:june:7:july:8:august:9:september:10:october:11:november:12:december #'ymajor' steps should be synchronised with numbers eg. "1" in this example grid 100,1,grey,4,1,6,grey
*/
temp = get_string(infile,1);
if( strstr(temp,":") != 0 ){ temp = str_replace(temp,":","\",\"");}
if( strstr(temp,"pi") != 0 ){ temp = str_replace(temp,"pi","(3.1415927)");}/* we need to replace pi for javascript y-value*/
fprintf(js_include_file,"y_strings = [\"%s\"];\n ",temp);
use_axis_numbering = 1;
break;
case AXIS_NUMBERING:
/*
@ axisnumbering
@ keyword, no aguments required
*/
use_axis_numbering = 1;
break;
case AXIS:
/*
@ axis
@ keyword, no aguments required
*/
use_axis = TRUE;
break;
case GRID:/* xmajor,ymajor,color [,xminor,yminor,tick length (px) ,color]*/
/*
@ grid step_x,step_y,gridcolor
@ use command "fontcolor", "fontsize" , "fontfamily" to adjust font defaults: black,12,Ariel
@ if keywords "axis" or "axisnumbering" are set, use : grid step_x,step_y,major_color,minor_x,minor_y,tics height in px,axis_color minor x step = step_x / minor_x
@ can not be set "onclick" or "drag xy"
@ use commands 'xlabel some_string' and/or 'ylabel some_string' to label axis; use command "fontsize" to adjust size (the font family is non-configurable 'italic your_fontsize px Ariel')
@ 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')
@ see command "legend" to set a legend for the graph ; use command "fontsize" to adjust size (the font family is non-configurable 'bold your_fontsize px Ariel')
*/
if( js_function[DRAW_GRID] != 1 ){ js_function[DRAW_GRID] = 1;}
for(i=0;i<4;i++){
switch(i){
case 0:double_data[0] = get_real(infile,0);break;/* xmajor */
case 1:double_data[1] = get_real(infile,0);break;/* ymajor */
case 2:
if( use_axis == TRUE ){
stroke_color = get_color(infile,0);
done = FALSE;
int_data[0] = (int) (get_real(infile,0));/* xminor */
int_data[1] = (int) (get_real(infile,0));/* yminor */
int_data[2] = (int) (get_real(infile,0));/* tic_length */
fill_color = get_color(infile,1); /* used as axis_color*/
fprintf(js_include_file,"var snap_x = %f;var snap_y = %f\n",double_data[0]/int_data[0],double_data[1]/int_data[1]);
}
else
{
int_data[0] = 1;
int_data[1] = 1;
stroke_color = get_color(infile,1);
fill_color = stroke_color;
fprintf(js_include_file,"var snap_x = %f;var snap_y = %f\n",double_data[0],double_data[1]);
}
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 !");}
/* 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){ */
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);
check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
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);
add_to_buffer(tmp_buffer);
break;
}
}
reset();
break;
case OPACITY:
/*
@ opacity 0-255,0-255
@
*/
for(i = 0 ; i<2;i++){
switch(i){
case 0: double_data[0]=(int)(get_real(infile,0));break;
case 1: double_data[1]=(int)(get_real(infile,1));break;
default: break;
}
}
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 ? */
stroke_opacity = (double) (0.0039215*double_data[0]);/* 0.0 - 1.0 */
fill_opacity = (double) (0.0039215*double_data[1]);/* 0.0 - 1.0 */
break;
case ROTATE:
/*
@rotate rotation_angle
@
*/
use_rotate = TRUE;
use_translate = TRUE;
translate_x = x2px(0);
translate_y = y2px(0);
angle = get_real(infile,1);
break;
case KILLTRANSLATION:
/*
killtranslation
*/
break;
case TRANSLATION:
/*
@translation tx,ty
@
*/
use_translate = TRUE;
translate_x = get_real(infile,0);
translate_y = get_real(infile,1);
break;
case DASHED:
/*
@ keyword "dashed"
@ next object will be drawn with a dashed line
@ change dashing scheme by using command "dashtype int,int)
*/
use_dashed = TRUE;
break;
case FILLED:
/*
@ keyword "filled"
@ the next 'fillable' object (only) will be filled
@ use command "fillcolor color" to set fillcolor
@ use command "opacity 0-255,0-255" to set stroke and fill-opacity
@ use command "fill x,y,color" or "floodfill x,y,color" to fill the space around (x;y) with color pixel operation implemented in javascript: use with care !
*/
use_filled = TRUE;
break;
case STYLE:
/*
@highlight color,opacity,linewidth
@ NOT IMPLEMENTED
@ use command "onclick" : when the object receives a userclick it will increase it's linewidth
*/
break;
case FILLCOLOR:
/*
@ fillcolor colorname or #hex
@ Set the color for a filled object : mainly used for command 'userdraw obj,stroke_color'
@ All fillable massive object will have a fillcolor == strokecolor (just to be compatible with flydraw...)
*/
fill_color = get_color(infile,1);
break;
case STROKECOLOR:
/*
@ strokecolor colorname or #hex
@ to be used for commands that do not supply a color argument (like command 'linegraph')
*/
stroke_color = get_color(infile,1);
break;
case BGIMAGE:
/*
@bgimage image_location
@use an image as background . (we use the background of 'canvas_div' )
@the background image will be resized to match "width = xsize" and "height = ysize"
*/
URL = get_string(infile,1);
fprintf(js_include_file,"\ncanvas_div.style.backgroundImage = \"url(%s)\";canvas_div.style.backgroundSize = \"%dpx %dpx\";\n",URL,xsize,ysize);
break;
case BGCOLOR:
/*
@bgcolor colorname or #hex
@use this color as background of the "div" containing the canvas(es)
*/
/* [255,255,255]*/
bgcolor = get_string(infile,1);
if(strstr(bgcolor,"#") == NULL){ /* convert colorname -> #ff00ff */
int found = 0;
for( i = 0; i < NUMBER_OF_COLORNAMES ; i++ ){
if( strcmp( colors[i].name , bgcolor ) == 0 ){
bgcolor = colors[i].hex;
found = 1;
break;
}
}
if(found == 0){canvas_error("your bgcolor is not in my rgb.txt data list : use hexcolor...something like #a0ffc4");}
}
fprintf(js_include_file,"\ncanvas_div.style.backgroundColor = \"%s\";canvas_div.style.opacity = %f;\n",bgcolor,fill_opacity);
break;
case COPY:
/*
@ copy x,y,x1,y1,x2,y2,[filename URL]
@ Insert the region from (x1,y1) to (x2,y2) (in pixels) of [filename] to (x,y) in x/y-range
@ If x1=y1=x2=y2=-1, the whole [filename URL] is copied.
@ [filename] is the URL of the image
@ URL is normal URL of network reachable image file location (eg special url for 'classexo' not -yet- implemented)
@ if command 'drag x/y/xy' is set before command 'copy', the images will be draggable javascript function read_canvas(); will return the x/y coordinate data in xrange/yrange of all -including non draggable- images the command drag is only valuid for the next image draggable / non-draggable images may be mixed
@ if you want to draw / userdraw on an "imported" image, make sure it is transparent. for example GNUPlot: set terminal gif transparent
context.drawImage(img,sx,sy,swidth,sheight,x,y,width,height);
draw_external_image(canvas_type,URL,sx,sy,swidth,sheight,x,y,width,height,drag_drop){
*/
for(i = 0 ; i<7;i++){
switch(i){
case 0: int_data[0]=x2px(get_real(infile,0));break; /* x left top corner in x/y range */
case 1: int_data[1]=y2px(get_real(infile,0));break; /* y left top corner in x/y range */
case 2: int_data[2]=(int)(get_real(infile,0));break;/* x1 in px of external image */
case 3: int_data[3]=(int)(get_real(infile,0));break;/* y1 in px of external image */
case 4: int_data[4]=(int)(get_real(infile,0));break;/* x2 --> width */
case 5: int_data[5]=(int)(get_real(infile,0)) ;break;/* y2 --> height */
case 6: URL = get_string(infile,1);
int_data[6] = int_data[4] - int_data[2];/* swidth & width (if not scaling )*/
int_data[7] = int_data[5] - int_data[3];/* sheight & height (if not scaling )*/
if( drag_type > -1 ){
if( js_function[DRAG_EXTERNAL_IMAGE] != 1 ){ js_function[DRAG_EXTERNAL_IMAGE] = 1;}
if(reply_format < 1 ){reply_format = 20;}
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);
check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
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);
drag_type = -1;
ext_img_cnt++;
}
else
{
if( js_function[DRAW_EXTERNAL_IMAGE] != 1 ){ js_function[DRAW_EXTERNAL_IMAGE] = 1;}
/*
draw_external_image = function(URL,sx,sy,swidth,sheight,x0,y0,width,height,draggable){\n\
*/
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]);
check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
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]);
}
add_to_buffer(tmp_buffer);
break;
default: break;
}
}
reset();
break;
/*
context.drawImage(img,sx,sy,swidth,sheight,x,y,width,height);
img Specifies the image, canvas, or video element to use
sx The x coordinate where to start clipping : x1 = int_data[0]
sy The y coordinate where to start clipping : x2 = int_data[1]
swidth The width of the clipped image : int_data[2] - int_data[0]
sheight The height of the clipped image : int_data[3] - int_data[1]
x The x coordinate where to place the image on the canvas : dx1 = int_data[4]
y The y coordinate where to place the image on the canvas : dy1 = int_data[5]
width The width of the image to use (stretch or reduce the image) : dx2 - dx1 = int_data[6]
height The height of the image to use (stretch or reduce the image) : dy2 - dy1 = int_data[7]
*/
case COPYRESIZED:
/*
@ copyresized x1,y2,x2,y2,dx1,dy1,dx2,dy2,image_file_url
@ Insert the region from (x1,y1) to (x2,y2) (in pixels) of [ filename], possibly resized, to the region of (dx1,dy1) to (dx2,dy2) in x/y-range
@ If x1=y1=x2=y2=-1, the whole [filename / URL ] is copied and resized.
@ URL is normal URL of network reachable image file location (eg special url for 'classexo' not -yet- implemented)
@ if command 'drag x/y/xy' is set before command 'copy', the images will be draggable javascript function read_canvas(); will return the x/y coordinate data in xrange/yrange of all -including non draggable- images the command drag is only valuid for the next image draggable / non-draggable images may be mixed
@ if you want to draw / userdraw on an "imported" image, make sure it is transparent. for example GNUPlot: set terminal gif transparent
*/
for(i = 0 ; i<9;i++){
switch(i){
case 0: int_data[0] = (int)(get_real(infile,0));break; /* x1 */
case 1: int_data[1] = (int)(get_real(infile,0));break; /* y1 */
case 2: int_data[2] = (int)(get_real(infile,0));break;/* x2 */
case 3: int_data[3] = (int)(get_real(infile,0));break;/* y2 */
case 4: int_data[4] = x2px(get_real(infile,0));break;/* dx1 */
case 5: int_data[5] = y2px(get_real(infile,0));break;/* dy1 */
case 6: int_data[6] = x2px(get_real(infile,0));break;/* dx2 */
case 7: int_data[7] = y2px(get_real(infile,0));break;/* dy2 */
case 8: URL = get_string(infile,1);
if( drag_type > -1 ){
if( js_function[DRAG_EXTERNAL_IMAGE] != 1 ){ js_function[DRAG_EXTERNAL_IMAGE] = 1;}
if(reply_format < 1 ){reply_format = 20;}
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);
check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
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);
drag_type = -1;
ext_img_cnt++;
}
else
{
if( js_function[DRAW_EXTERNAL_IMAGE] != 1 ){ js_function[DRAW_EXTERNAL_IMAGE] = 1;}
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]);
check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
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]);
}
add_to_buffer(tmp_buffer);
default: break;
}
}
reset();
break;
case BUTTON:
/*
button x,y,value
*/
break;
case INPUTSTYLE:
/*
@ inputstyle style_description
@ example: inputstyle color:blue;font-weight:bold;font-style:italic;font-size:16pt
*/
input_style = get_string(infile,1);
break;
case INPUT:
/*
@ input x,y,size,editable,value
@ to set inputfield "readonly", use editable = 0
@ only active inputfields (editable = 1) will be read with read_canvas();
@ may be further controlled by "inputstyle" (inputcss is not yet implemented...)
@ if mathml inputfields are present and / or some userdraw is performed, these data will NOT be send as well (javascript:read_canvas();)
*/
if( js_function[DRAW_INPUTS] != 1 ){ js_function[DRAW_INPUTS] = 1;}
for(i = 0 ; i<5;i++){
switch(i){
case 0: int_data[0]=x2px(get_real(infile,0));break;/* x in px */
case 1: int_data[1]=y2px(get_real(infile,0));break;/* y in px */
case 2: int_data[2]=abs( (int)(get_real(infile,0)));break; /* size */
case 3: if( get_real(infile,1) >0){int_data[3] = 1;}else{int_data[3] = 0;};break; /* readonly */
case 4:
temp = get_string_argument(infile,1);
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);
check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
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);
add_to_buffer(tmp_buffer);
input_cnt++;break;
default: break;
}
}
if(reply_format < 1 ){reply_format = 15;}
reset();
break;
case TEXTAREA:
/*
@ textarea x,y,cols,rows,readonly,value
@ may be further controlled by "inputstyle"
@ if mathml inputfields are present and / or some userdraw is performed, these data will NOT be send as well (javascript:read_canvas();)
*/
if( js_function[DRAW_TEXTAREAS] != 1 ){ js_function[DRAW_TEXTAREAS] = 1;}
for(i = 0 ; i<6;i++){
switch(i){
case 0: int_data[0]=x2px(get_real(infile,0));break; /* x in px */
case 1: int_data[1]=y2px(get_real(infile,0));break; /* y in px */
case 2: int_data[2]=abs( (int)(get_real(infile,0)));break;/* cols */
case 3: int_data[3]=abs( (int)(get_real(infile,0)));break;/* rows */
case 4: if( get_real(infile,1) >0){int_data[4] = 1;}else{int_data[3] = 0;};break; /* readonly */
case 5: temp = get_string_argument(infile,1);
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);
check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
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);
add_to_buffer(tmp_buffer);
input_cnt++;break;
default: break;
}
}
if(reply_format < 1 ){reply_format = 15;}
reset();
break;
case MOUSE_PRECISION:
/*
@ precision int
@ 10 = 1 decimal ; 100 = 2 decimals etc
@ may be used / changed before every object
*/
precision = (int) (get_real(infile,1));
break;
case ZOOM:
/*
@ zoom button_color
@ introduce a controlpanel at the lower right corner
@ giving six 15x15pixel 'active' rectangle areas (for x,leftarrow,rightarrow,uparrow,downarrow and a '-' and a '+' sign ) for zooming and/or panning of the image
@ the 'x' symbol will do a 'location.reload' of the page, and thus reset all canvas drawings.
@ choose an appropriate colour, so the small 'x,arrows,-,+' are clearly visible
@ command 'opacity' may be used to set stroke_opacity of 'buttons
@ NOTE: only objects that may be set draggable / clickable will be zoomed / panned
@ NOTE: when an object is dragged, zooming / panning will cause the coordinates to be reset to the original position :( e.g. dragging / panning will get lost. (array with 'drag data' is erased) This is a design flaw and not a feature !!
*/
fprintf(js_include_file,"use_pan_and_zoom = 1;\n");
if( js_function[DRAW_ZOOM_BUTTONS] != 1 ){ js_function[DRAW_ZOOM_BUTTONS] = 1;}
/* we use BG_CANVAS (0) */
stroke_color = get_color(infile,1);
string_length = snprintf(NULL,0," draw_zoom_buttons(%d,\"%s\",%f);\n",BG_CANVAS,stroke_color,stroke_opacity);
check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
snprintf(tmp_buffer,MAX_BUFFER-1,"draw_zoom_buttons(%d,\"%s\",%f);\n",BG_CANVAS,stroke_color,stroke_opacity);
add_to_buffer(tmp_buffer);
done = TRUE;
break;
case ONCLICK:
/*
@ onclick
@ keyword, no arguments
@ if the next object is clicked, it's 'object sequence number' in fly script is returned by javascript:read_canvas();
@ Line based object will show an increase in linewidth Font based objects will show the text in 'bold' when clicked.
@ NOTE: not all objects may be set clickable
*/
onclick = 1;
break;
case DRAG:
/*
@ drag [x][y][xy]
@ the next object will be draggable in x / y / xy direction
@ the displacement can be read by 'javascript:read_dragdrop();'
@ in case of external images (commands copy / copyresized) the external image can be set draggable ; always xy. The function javascript;read_canvas() will return the xy-coordinates of all images.
@ NOTE: in case an object is dragged , zooming or panning will cause the coordinates to be reset to the original position :( e.g. dragging / panning will get lost. (array with 'drag data' is erased) This is a design flaw and not a feature !!
*/
temp = get_string(infile,1);
if(strstr(temp,"xy") != NULL ){
drag_type = 0;
}
else
{
if(strstr(temp,"x") != NULL ){
drag_type = 1;
}
else
{
drag_type = 2;
}
}
onclick = 2;
/* if(use_userdraw == TRUE ){canvas_error("\"drag & drop\" may not be combined with \"userdraw\" or \"pan and zoom\" \n");} */
break;
case BLINK:
/*
@ blink time(seconds)
@ NOT IMPLEMETED -YET
*/
break;
case MOUSE:
/*
@ mouse color,fontsize
@ will display the cursor coordinates in 'color' and 'font size' using default fontfamily Ariel
*/
use_mouse_coordinates = TRUE; /* will add & call function "use_mouse_coordinates(){}" in current_canvas /current_context */
stroke_color = get_color(infile,0);
font_size = (int) (get_real(infile,1));
add_js_mouse(js_include_file,MOUSE_CANVAS,canvas_root_id,precision,stroke_color,font_size,stroke_opacity);
break;
case INTOOLTIP:
/*
@ intooltip link_text
@ link_text is a single line (span-element)
@ link_text may also be an image URL http://some_server/images/my_image.png
@ link_text may contain HTML markup
@ the canvas will be displayed in a tooltip on 'link_text'
@ the canvas is default transparent: use command 'bgcolor color' to adjust background-color the link test will alos be shown with this bgcolor.
*/
use_tooltip = TRUE;
tooltip_text = get_string(infile,1);
if(strstr(tooltip_text,"\"") != 0 ){ tooltip_text = str_replace(tooltip_text,"\"","'"); }
break;
case AUDIO:
/*
@ audio x,y,w,h,loop,visible,audiofile location
@ x,y : left top corner of audio element (in xrange / yrange)
@ w,y : width and height in pixels
@ loop : 0 or 1 ( 1 = loop audio fragment)
@ visible : 0 or 1 (1 = show controls)
@ audio format may be in *.mp3 or *.ogg
@ If you are using *.mp3 : be aware that FireFox will not (never) play this ! (Pattented format)
@ if you are using *.ogg : be aware that Microsoft based systems not support it natively
@ To avoid problems supply both types (mp3 and ogg) of audiofiles. the program will use both as source tag
@ example: upload both audio1.ogg and audio1.mp3 to http://server/files/ audio 0,0,http://server/files/audio1.mp3 svdraw will copy html-tag audio1.mp3 to audio1.ogg and the browser will play the compatible file (audio1.ogg or audio1.mp3)
*/
if( js_function[DRAW_AUDIO] != 1 ){ js_function[DRAW_AUDIO] = 1;}
for(i=0;i<7;i++){
switch(i){
case 0: int_data[0] = x2px(get_real(infile,0)); break; /* x in x/y-range coord system -> pixel */
case 1: int_data[1] = y2px(get_real(infile,0)); break; /* y in x/y-range coord system -> pixel */
case 2: int_data[2] = (int) (get_real(infile,0)); break; /* pixel width */
case 3: int_data[3] = (int) (get_real(infile,0)); break; /* height pixel height */
case 4: int_data[4] = (int) (get_real(infile,0)); if(int_data[4] != TRUE){int_data[4] = FALSE;} break; /* loop boolean */
case 5: int_data[5] = (int) (get_real(infile,0)); if(int_data[5] != TRUE){int_data[5] = FALSE;} break; /* visible boolean */
case 6:
temp = get_string(infile,1);
if( strstr(temp,".mp3") != 0 ){ temp = str_replace(temp,".mp3","");}
if( strstr(temp,".ogg") != 0 ){ temp = str_replace(temp,".ogg","");}
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);
check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
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);
add_to_buffer(tmp_buffer);
break;
default:break;
}
}
reset();
break;
case VIDEO:
/*
@ video x,y,w,h,videofile location
@ x,y : left top corner of audio element (in xrange / yrange)
@ w,y : width and height in pixels
@ example: wims getfile : video 0,0,120,120,myvideo.mp4
@ video format may be in *.mp4 (todo:other formats)
*/
if( js_function[DRAW_VIDEO] != 1 ){ js_function[DRAW_VIDEO] = 1;}
for(i=0;i<5;i++){
switch(i){
case 0: int_data[0] = x2px(get_real(infile,0)); break; /* x in x/y-range coord system -> pixel */
case 1: int_data[1] = y2px(get_real(infile,0)); break; /* y in x/y-range coord system -> pixel */
case 2: int_data[2] = (int) (get_real(infile,0)); break; /* pixel width */
case 3: int_data[3] = (int) (get_real(infile,0)); break; /* height pixel height */
case 4: temp = get_string(infile,1);
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);
check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
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);
add_to_buffer(tmp_buffer);
break;
default:break;
}
}
reset();
break;
case HATCHFILL:
/*
@ hatchfill x0,y0,dx,dy,color
@ x0,y0 in xrange / yrange
@ distances dx,dy in pixels
*/
if( js_function[DRAW_HATCHFILL] != 1 ){ js_function[DRAW_HATCHFILL] = 1;}
for(i=0;i<5;i++){
switch(i){
case 0: int_data[0] = x2px(get_real(infile,0)); break; /* x */
case 1: int_data[1] = y2px(get_real(infile,0)); break; /* y */
case 2: int_data[2] = (int) (get_real(infile,0)); break; /* dx pixel */
case 3: int_data[3] = (int) (get_real(infile,0)); break; /* dy pixel*/
case 4: stroke_color = get_color(infile,1);
/* draw_hatchfill(ctx,x0,y0,dx,dy,linewidth,color,opacity,xsize,ysize) */
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);
check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
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);
add_to_buffer(tmp_buffer);
break;
default:break;
}
}
reset();
break;
case GRIDFILL:
/*
@ gridfill x0,y0,dx,dy,color
@ x0,y0 in xrange / yrange
@ distances dx,dy in pixels
*/
if( js_function[DRAW_GRIDFILL] != 1 ){ js_function[DRAW_GRIDFILL] = 1;}
for(i=0;i<5;i++){
switch(i){
case 0: int_data[0] = x2px(get_real(infile,0)); break; /* x */
case 1: int_data[1] = y2px(get_real(infile,0)); break; /* y */
case 2: int_data[2] = (int) (get_real(infile,0)); break; /* dx pixel */
case 3: int_data[3] = (int) (get_real(infile,0)); break; /* dy pixel*/
case 4: stroke_color = get_color(infile,1);
/* draw_gridfill(ctx,x0,y0,dx,dy,linewidth,color,opacity,xsize,ysize) */
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);
check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
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);
add_to_buffer(tmp_buffer);
break;
default:break;
}
}
reset();
break;
case DOTFILL:
/*
@ dotfill x0,y0,dx,dy,color
@ x0,y0 in xrange / yrange
@ distances dx,dy in pixels
@ radius of dots is linewidth
*/
if( js_function[DRAW_DOTFILL] != 1 ){ js_function[DRAW_DOTFILL] = 1;}
for(i=0;i<5;i++){
switch(i){
case 0: int_data[0] = x2px(get_real(infile,0)); break; /* x */
case 1: int_data[1] = y2px(get_real(infile,0)); break; /* y */
case 2: int_data[2] = (int) (get_real(infile,0)); break; /* dx pixel */
case 3: int_data[3] = (int) (get_real(infile,0)); break; /* dy pixel*/
case 4: stroke_color = get_color(infile,1);
/* draw_dotfill(ctx,x0,y0,dx,dy,radius,color,opacity,xsize,ysize) */
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);
check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
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);
add_to_buffer(tmp_buffer);
break;
default:break;
}
}
reset();
break;
case IMAGEFILL:
/*
@ imagefill dx,dy,image_url
@ The next suitable filled object will be filled with "image_url" tiled
@ After pattern filling ,the fill-color should be reset !
@ wims getins / image from class directory : imagefill 80,80,my_image.gif
@ normal url : imagefill 80,80,$module_dir/gifs/my_image.gif
@ normal url : imagefill 80,80,http://adres/a/b/c/my_image.jpg
@ if dx,dy is larger than the image, the whole image will be background to the next object.
*/
if( js_function[DRAW_IMAGEFILL] != 1 ){ js_function[DRAW_IMAGEFILL] = 1;}
for(i=0 ;i < 3 ; i++){
switch(i){
case 0:int_data[0] = (int) (get_real(infile,0));break;
case 1:int_data[1] = (int) (get_real(infile,0));break;
case 2: URL = get_string_argument(infile,1);
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);
check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
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);
add_to_buffer(tmp_buffer);
break;
}
}
break;
case FILLTOBORDER:
/*
@ filltoborder x,y,bordercolor,color
@ fill the region of point (x:y) bounded by 'bordercolor' with color 'color'
@ any other color will not act as border to the bucket fill
@ use this command after all boundary objects are declared.
@ NOTE: filltoborder is a very (client) cpu intensive operation! filling is done pixel by pixel e.g. image size of 400x400 uses 160000 pixels : each pixel contains 4 data (R,G,B,Opacity) = 640000 data. on every data a few operations / comparisons are done... So have pity on your students CPU..
*/
for(i=0 ;i < 4 ; i++){
switch(i){
case 0:double_data[0] = get_real(infile,0);break;
case 1:double_data[1] = get_real(infile,0);break;
case 2:bgcolor = get_color(infile,0);break;
case 3:fill_color = get_color(infile,1);
if(js_function[DRAW_FILLTOBORDER] != 1 ){/* use only once */
js_function[DRAW_FILLTOBORDER] = 1;
add_js_filltoborder(js_include_file,canvas_root_id);
}
decimals = find_number_of_digits(precision);
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));
check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
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));
add_to_buffer(tmp_buffer);
break;
default:break;
}
}
break;
case FLOODFILL:
/*
@ floodfill x,y,color
@ alternative syntax: fill x,y,color
@ fill the region of point (x:y) with color 'color'
@ any other color or size of picture (borders of picture) will act as border to the bucket fill
@ use this command after all boundary objects are declared.
@ Use command 'clickfill,color' for user click driven flood fill.
@ NOTE: recognised colour boundaries are in the "drag canvas" e.g. only for objects that can be set draggable / clickable
@ NOTE: floodfill is a very (client) cpu intensive operation! filling is done pixel by pixel e.g. image size of 400x400 uses 160000 pixels : each pixel contains 4 data (R,G,B,Opacity) = 640000 data. on every data a few operations / comparisons are done... So have pity on your students CPU..
*/
for(i=0 ;i < 4 ; i++){
switch(i){
case 0:double_data[0] = get_real(infile,0);break;
case 1:double_data[1] = get_real(infile,0);break;
case 2:fill_color = get_color(infile,1);
if(js_function[DRAW_FLOODFILL] != 1 ){/* use only once */
js_function[DRAW_FLOODFILL] = 1;
add_js_floodfill(js_include_file,canvas_root_id);
}
decimals = find_number_of_digits(precision);/*floodfill(interaction,x,y,[R,G,B,A]) */
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));
check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
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));
add_to_buffer(tmp_buffer);
break;
default:break;
}
}
break;
case CLICKFILLMARGE:
clickfillmarge = (int) (get_real(infile,1));
break;
/*
@ clickfillmarge int
@ default 20 (pixels)
@ when using command "clickfill fillcolor" a coloured area my be reverted ("undo") back to background colour with a middle mouse click when the click is in a 40x40 rectangle around a stored m mouseclick (userdraw_x[] and userdraw_y[])
*/
case CLICKFILL:
/*
@ clickfill fillcolor
@ user left mouse click will floodfill the area with fillcolor
@ multiple areas may be coloured
@ the coloured areas can be removed (changed to "bgcolor") by middle / right mouse click (if the click is in an 40x40 pixel area of the click coordinate that "painted" the area)
@ the answer will be read as the (x:y) click coordinates per coloured area
@ background color of main div may be set by using command "bgcolor color"
@ may not be combined with command "userdraw"
@ NOTE: recognised colour boundaries are in the "drag canvas" e.g. only for objects that can be set draggable / clickable
*/
fill_color = get_color(infile,1);
if(js_function[DRAW_FLOODFILL] != 1 ){/* use only once */
js_function[DRAW_FLOODFILL] = 1;
add_js_floodfill(js_include_file,canvas_root_id);
}
fprintf(js_include_file,"\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]);};\n\n",clickfillmarge,fill_color,(int) (fill_opacity/0.0039215));
add_read_canvas(1);
break;
case SETPIXEL:
/*
@ setpixel x,y,color
@ A "point" with diameter 1 pixel centeres at (x:y) in xrange / yrange
@ pixels can not be dragged or clicked
@ "pixelsize = 1" may be changed by command "pixelsize int"
*/
if( js_function[DRAW_PIXELS] != 1 ){ js_function[DRAW_PIXELS] = 1;}
for(i=0;i<3;i++){
switch(i){
case 0: double_data[0] = get_real(infile,0); break; /* x */
case 1: double_data[1] = get_real(infile,0); break; /* y */
case 2: stroke_color = get_color(infile,1);
string_length = snprintf(NULL,0,"draw_setpixel([%f],[%f],\"%s\",%.2f,%d);\n",double_data[0],double_data[1],stroke_color,stroke_opacity,pixelsize);
check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
snprintf(tmp_buffer,string_length,"draw_setpixel([%f],[%f],\"%s\",%.2f,%d);\n",double_data[0],double_data[1],stroke_color,stroke_opacity,pixelsize);
add_to_buffer(tmp_buffer);
break;
default:break;
}
}
reset();
break;
case PIXELSIZE:
/*
@ pixelsize int
@ in case you want to deviate from default pixelsize = 1...
*/
pixelsize = (int) get_real(infile,1);
break;
case PIXELS:
/*
@ pixels color,x1,y1,x2,y2,x3,y3...
@ Draw "points" with diameter 1 pixel
@ pixels can not be dragged or clicked
@ "pixelsize = 1" may be changed by command "pixelsize int"
*/
if( js_function[DRAW_PIXELS] != 1 ){ js_function[DRAW_PIXELS] = 1;}
stroke_color=get_color(infile,0);
i=0;
c=0;
while( ! done ){ /* get next item until EOL*/
if(i > MAX_INT - 1){canvas_error("to many points in argument: repeat command multiple times to fit");}
for( c = 0 ; c < 2; c++){
if(c == 0 ){
double_data[i] = get_real(infile,0);
i++;
}
else
{
double_data[i] = get_real(infile,1);
i++;
}
}
}
decimals = find_number_of_digits(precision);
/* *double_xy2js_array(double xy[],int len,int decimals) */
string_length = snprintf(NULL,0, "draw_setpixel(%s,\"%s\",%.2f,%d);\n",double_xy2js_array(double_data,i,decimals),stroke_color,stroke_opacity,pixelsize);
check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
snprintf(tmp_buffer,string_length,"draw_setpixel(%s,\"%s\",%.2f,%d);\n",double_xy2js_array(double_data,i,decimals),stroke_color,stroke_opacity,pixelsize);
add_to_buffer(tmp_buffer);
break;
case DEBUG:
/*
@ debug
@ keyword, no arguments
@ use as first command (before 'size')
@ will show a few buttons to read_canvas(); read_mathml(); and read_dragdrop();
@ only to be used in a single canvasdraw instance or in case of multiple canvasdraw images , only the last image
*/
debug = 1;
fprintf(stdout,"\n\
\n\
<input type=\"button\" onclick=\"javascript:alert(read_canvas());\" value=\"read_canvas()\" />\n\
<input type=\"button\" onclick=\"javascript:alert(read_mathml());\" value=\"read_mathml()\" />\n\
<input type=\"button\" onclick=\"javascript:alert(read_dragdrop());\" value=\"read_dragdrop()\" />\n");
done = TRUE;
case REPLYFORMAT:
/*
@ replyformat number
@ default values should be fine !
@ use command "debug" to check return values of javascript function read_canvas();
@ choose<ul><li>1 = x1,x2,x3,x4....x_n y1,y2,y3,y4....y_n x/y in pixels</li><li>2 = x1,x2,x3,x4....x_n y1,y2,y3,y4....y_n x/y in xrange / yrange coordinate system </li><li>3 = x1,x2,x3,x4....x_n y1,y2,y3,y4....y_n r1,r2,r3,r4....r_n x/y in pixels r in pixels</li><li>4 = x1,x2,x3,x4....x_n y1,y2,y3,y4....y_n r1,r2,r3,r4....r_n x/y in xrange / yrange coordinate system r in pixels</li><li>5 = Ax1,Ax2,Ax3,Ax4....Ax_n Ay1,Ay2,Ay3,Ay4....Ay_n Bx1,Bx2,Bx3,Bx4....Bx_n By1,By2,By3,By4....By_n Cx1,Cx2,Cx3,Cx4....Cx_n Cy1,Cy2,Cy3,Cy4....Cy_n .... Zx1,Zx2,Zx3,Zx4....Zx_n Zy1,Zy2,Zy3,Zy4....Zy_n x/y in pixels </li><li>6 = Ax1,Ax2,Ax3,Ax4....Ax_n Ay1,Ay2,Ay3,Ay4....Ay_n Bx1,Bx2,Bx3,Bx4....Bx_n By1,By2,By3,By4....By_n Cx1,Cx2,Cx3,Cx4....Cx_n Cy1,Cy2,Cy3,Cy4....Cy_n .... Zx1,Zx2,Zx3,Zx4....Zx_n Zy1,Zy2,Zy3,Zy4....Zy_n x/y in xrange / yrange coordinate system </li><li>7 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n x/y in pixels</li><li>8 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n 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 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 x/y in xrange / yrange coordinate system</li><li>11 = Ax1,Ay1,Ax2,Ay2 Bx1,By1,Bx2,By2 Cx1,Cy1,Cx2,Cy2 Dx1,Dy1,Dx2,Dy2 ...... Zx1,Zy1,Zx2,Zy2 x/y in xrange / yrange coordinate system</li><li>12 = Ax1,Ay1,Ax2,Ay2 Bx1,By1,Bx2,By2 Cx1,Cy1,Cx2,Cy2 Dx1,Dy1,Dx2,Dy2 ...... Zx1,Zy1,Zx2,Zy2 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 x/y in xrange / yrange coordinate system</li><li>14 = Ax1:Ay1:Ax2:Ay2,Bx1:By1:Bx2:By2....Zx1:Zy1:Zx2:Zy2 x/y in pixels</li><li>15 = reply from inputfields,textareas 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) analogue to (shape library) onclick command </li><li>21 = (x1:y1) (x2:y2) ... (x_n:y_n) verbatim coordinate return</li>22 = retruns an array .... reply[0]=x1 reply[1]=y1 reply[2]=x2 reply[3]=y2 ... reply[n-1]=x_n reply[n]=y_n x/y in xrange / yrange coordinate system</ul>
@ note to 'userdraw text,color' : the x / y-values are in pixels ! (this to avoid too lengthy calculations in javascript...)
*/
reply_format = (int) get_real(infile,1);
break;
case LEGENDCOLORS:
/*
@ legendcolors color1:color2:color3:...:color_n
@ will be used to colour a legend
@ make sure the number of colours match the number of legend items
@ command 'legend' in case of 'piechart' and 'barchart' will use these colours per default (no need to specify 'legendcolors'
*/
temp = get_string(infile,1);
if( strstr( temp,":") != 0 ){ temp = str_replace(temp,":","\",\""); }
fprintf(js_include_file,"var legendcolors%d = [\"%s\"];\n",canvas_root_id,temp);
break;
case LEGEND:
/*
@ legend string1:string2:string3....string_n
@ will be used to create a legend for a graph
@ also see command 'piechart'
*/
temp = get_string(infile,1);
if( strstr( temp,":") != 0 ){ temp = str_replace(temp,":","\",\""); }
fprintf(js_include_file,"var legend%d = [\"%s\"];\n",canvas_root_id,temp);
break;
case XLABEL:
/*
@ xlabel some_string
@ will be used to create a label for the x-axis (label is in quadrant I)
@ can only be used together with command 'grid' not depending on keywords 'axis' and 'axisnumbering'
@ font setting: italic Courier, fontsize will be slightly larger (fontsize + 4)
*/
temp = get_string(infile,1);
fprintf(js_include_file,"var xaxislabel = \"%s\"; ",temp);
break;
case YLABEL:
/*
@ ylabel some_string
@ will be used to create a (vertical) label for the y-axis (label is in quadrant I)
@ can only be used together with command 'grid' not depending on keywords 'axis' and 'axisnumbering'
@ font setting: italic Courier, fontsize will be slightly larger (fontsize + 4)
*/
temp = get_string(infile,1);
fprintf(js_include_file,"var yaxislabel = \"%s\"; ",temp);
break;
case LINEGRAPH: /* scheme: var linegraph_0 = [ 'stroke_color','line_width','use_dashed' ,'dashtype0','dashtype1','x1','y1',...,'x_n','y_n'];*/
/*
@ linegraph x1:y1;x2:y2...x_n:y;2
@ will plot your data in a graph
@ may only to be used together with command 'grid'
@ can be used together with freestyle x-axis/y-axis texts : see commands 'xaxis' and 'yaxis'
@ use command 'legend' to provide an optional legend in right-top-corner
@ also see command 'piechart'
@ multiple linegraphs may be used in a single plot
@ <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>
*/
temp = get_string(infile,1);
if( strstr( temp,":") != 0 ){ temp = str_replace(temp,":","\",\""); }
fprintf(js_include_file,"var linegraph_%d = [\"%s\",\"%d\",\"%d\",\"%d\",\"%d\",\"%s\"];\n",linegraph_cnt,stroke_color,line_width,use_dashed,dashtype[0],dashtype[1],temp);
linegraph_cnt++;
reset();
break;
case CLOCK:
/*
@ clock x,y,r(px),H,M,S,type hourglass,interactive [ ,H_color,M_color,S_color,background_color,foreground_color ]
@ type hourglass: type = 0 : only segments type = 1 : only numbers type = 2 : numbers and segments
@ colors are optional: if not defined, default values will be used default colours: clock 0,0,60,4,35,45,1,2,[space] default colours: clock 0,0,60,4,35,45,1,2,,,,, custom colours: clock 0,0,60,4,35,45,1,2,,,,yellow,red custom colours: clock 0,0,60,4,35,45,1,2,white,white,white,black,yellow
@ 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 The active clock(s) can be adjusted by pupils</li><li>2 : function read_canvas() will return the clicked clock (like multiplechoice; first clock in script in nr. 0 )</li></ul>
@ canvasdraw will not check validity of colornames...the javascript console is your best friend
@ no combinations with other reply_types allowed, for now
@ if command 'debug' is set, 6 buttons per clock will be displayed for adjusting a clock (H+ M+ S+ H- M- S-) set_clock(clock_id,type,incr) first clock has clock_id=0 ; type : H=1,M=2,S=3 ; incr : increment integer
*/
if( js_function[DRAW_CLOCK] != 1 ){ js_function[DRAW_CLOCK] = 1;}
/* var clock = function(xc,yc,radius,H,M,S,h_color,m_color,s_color,bg_color,fg_color) */
for(i=0;i<9;i++){
switch(i){
case 0: int_data[0] = x2px(get_real(infile,0)); break; /* xc */
case 1: int_data[1] = y2px(get_real(infile,0)); break; /* yc */
case 2: int_data[2] = get_real(infile,0);break;/* radius in px */
case 3: int_data[3] = get_real(infile,0);break;/* hours */
case 4: int_data[4] = get_real(infile,0);break;/* minutes */
case 5: int_data[5] = get_real(infile,0);break;/* seconds */
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 */
case 7: int_data[7] = (int)(get_real(infile,0));/* interactive 0,1,2*/
switch(int_data[7]){
default:break;
case 1 :if(clock_cnt == 0){
if( reply_format == 0 ){
reply_format = 18; /* user sets clock */
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");
check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
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");
add_to_buffer(tmp_buffer);
}
else
{
canvas_error("interactive clock may not be used together with other reply_types...");
}
}
if(debug == 1 ){
fprintf(stdout," <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-\" /> ",clock_cnt,clock_cnt,clock_cnt,clock_cnt,clock_cnt,clock_cnt);
}
break;
case 2 :if( reply_format == 0 ){
reply_format = 19; /* "onclick */
fprintf(js_include_file,"\n\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\n ");
}
else
{
if( reply_format != 19){
canvas_error("clickable clock(s) may not be used together with other reply_types...");
}
}
break;
}
break;
case 8:
temp = get_string(infile,1);
if( strstr( temp,",") != 0 ){ temp = str_replace(temp,",","\",\""); }
if( strlen(temp) < 1 ){temp = ",\"\",\"\",\"\",\"\",\"\"";}
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);
check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
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);
add_to_buffer(tmp_buffer);
clock_cnt++;
break;
default:break;
}
}
break;
case BARCHART:
/*
@ barchart x_1:y_1:color_1:x_2:y_2:color_2:...x_n:y_n:color_n
@ will be used to create a legend for bar graph
@ may only to be used together with command 'grid'
@ can be used together with freestyle x-axis/y-axis texts : see commands 'xaxis' and 'yaxis'
@ use command 'legend' to provide an optional legend in right-top-corner
@ also see command 'piechart'
*/
temp = get_string(infile,1);
if( strstr( temp,":" ) != 0 ){ temp = str_replace(temp,":","\",\""); }
fprintf(js_include_file,"var barchart%d = [\"%s\"];\n",canvas_root_id,temp);
reset();
break;
case PIECHART:
/*
@ piechart xc,yc,radius,'data+colorlist'
@ (xc : yc) center of circle diagram in xrange/yrange
@ radius in pixels
@ data+color list: a colon separated list of raw data and corresponding colours canvasdraw will not check validity of colornames... in case of trouble look into javascript debugging of your browser
@ example data+colorlist : 132:red:23565:green:323:black:234324:orange:23434:yellow:2543:white
@ the number of colors must match the number of data.
@ use command "opacity 0-255,0-255" to adjust fill_opacity of colours
@ use command "legend string1:string2:...:string_n" to automatically create a legend using the same colours as pie segments unicode allowed in legend expect javascript trouble if the amount of 'pie-slices', 'pie-colours' 'pie-legend-titles' do not match a javascript console is your best friend...
*/
if( js_function[DRAW_PIECHART] != 1 ){ js_function[DRAW_PIECHART] = 1;}
for(i=0;i<5;i++){
switch(i){
case 0: int_data[0] = x2px(get_real(infile,0)); break; /* x */
case 1: int_data[1] = y2px(get_real(infile,0)); break; /* y */
case 2: int_data[2] = (int)(get_real(infile,1));break;/* radius*/
case 3: temp = get_string(infile,1);
if( strstr( temp, ":" ) != 0 ){ temp = str_replace(temp,":","\",\"");}
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);
check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
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);
add_to_buffer(tmp_buffer);
break;
default:break;
}
}
reset();
break;
case STATUS:
fprintf(js_include_file,"\nstatus=\"waiting\";\n");
break;
case XLOGSCALE:
/*
@xlogscale g,xmajor,xminor
@create a log grid in xrange
*/
break;
case YLOGSCALE:
break;
case XYLOGSCALE:
default:sync_input(infile);
break;
}
}
/* we are done parsing script file */
/* if needed, add generic draw functions (grid / xml etc) to buffer : these are no draggable shapes / objects ! */
add_javascript_functions(js_function,canvas_root_id);
/* add read_canvas() etc functions if needed */
if( reply_format > 0 ){ add_read_canvas(reply_format);}
/* using mouse coordinate display ? */
if( use_mouse_coordinates == TRUE ){
tmp_buffer = my_newmem(26);
snprintf(tmp_buffer,25,"use_mouse_coordinates();\n");add_to_buffer(tmp_buffer);
}
/* add global variables / contants */
fprintf(js_include_file,"\n\
\n\
var precision = %d;var xmin=%.*f;var xmax=%.*f;var ymin=%.*f;\
var ymax=%.*f;var xmin_start=xmin;var xmax_start=xmax;\
var ymin_start=ymin;var ymax_start=xmax;var zoom_increment = (xmax - xmin)/20;\
var pan_x_increment = (xmax - xmin)/20;var pan_y_increment = (ymax - ymin)/20;\
\n\
function start_canvas%d(type){\n\
switch(type){\n\
case 0:xmin = xmin + zoom_increment;ymin = ymin + zoom_increment;xmax = xmax - zoom_increment;ymax = ymax - zoom_increment;break;\n\
case 1:xmin = xmin - zoom_increment;ymin = ymin - zoom_increment;xmax = xmax + zoom_increment;ymax = ymax + zoom_increment;break;\n\
case 2:xmin = xmin - pan_x_increment;ymin = ymin ;xmax = xmax - pan_x_increment;ymax = ymax;break;\n\
case 3:xmin = xmin + pan_x_increment;ymin = ymin ;xmax = xmax + pan_x_increment;ymax = ymax;break;\n\
case 4:xmin = xmin;ymin = ymin - pan_y_increment ;xmax = xmax;ymax = ymax - pan_y_increment;break;\n\
case 5:xmin = xmin;ymin = ymin + pan_y_increment ;xmax = xmax;ymax = ymax + pan_y_increment;break;\n\
case 6:location.reload();break;\n\
default:break;\n\
};\n\
if(xmax<=xmin){xmin=xmin_start;xmax=xmax_start;};\n\
if(ymax<=ymin){ymin=ymin_start;ymax=ymax_start;};\n\
try{dragstuff.Zoom(xmin,xmax,ymin,ymax);}catch(e){}\n\
\n\
%s\n\
};\n\
start_canvas%d(22);\n\
};\n\
\n\
wims_canvas_function%d();\n",precision,decimals,xmin,decimals,xmax,decimals,ymin,decimals,ymax,canvas_root_id,buffer,canvas_root_id,canvas_root_id);
/* done writing the javascript include file */
fclose(js_include_file);
}
/* if using a tooltip, this should always be printed to the *.phtml file, so stdout */
if(use_tooltip == TRUE){
add_js_tooltip(canvas_root_id,tooltip_text,bgcolor,xsize,ysize);
}
exit(EXIT_SUCCESS);
}
/* end main() */
/******************************************************************************
**
** sync_input
**
** synchronises input line - reads to end of line, leaving file pointer
** at first character of next line.
**
** Used by:
** main program - error handling.
**
******************************************************************************/
void sync_input(FILE *infile)
{
int c = 0;
if( c == '\n' ) return;
while( ( (c=getc(infile)) != EOF ) && (c != '\n') && (c != '\r')) ;
if( c == EOF ) finished = 1;
if( c == '\n' || c == '\r') line_number++;
return;
}
/******************************************************************************/
char *str_replace(const char *str, const char *old, const char *new){
/* http://creativeandcritical.net/str-replace-c/ */
if(strlen(str) > MAX_BUFFER){canvas_error("string argument too big");}
char *ret, *r;
const char *p, *q;
size_t oldlen = strlen(old);
size_t count = 0;
size_t retlen = 0;
size_t newlen = strlen(new);
if (oldlen != newlen){
for (count = 0, p = str; (q = strstr(p, old)) != NULL; p = q + oldlen){
count++;
retlen = p - str + strlen(p) + count * (newlen - oldlen);
}
}
else
{
retlen = strlen(str);
}
if ((ret = malloc(retlen + 1)) == NULL){
ret = NULL;
canvas_error("string argument is NULL");
}
else
{
for (r = ret, p = str; (q = strstr(p, old)) != NULL; p = q + oldlen) {
size_t l = q - p;
memcpy(r, p, l);
r += l;
memcpy(r, new, newlen);
r += newlen;
}
strcpy(r, p);
}
return ret;
}
/******************************************************************************/
/*
avoid the use of ctypes.h for tolower() toupper();
it gives trouble in FreeBSD 9.0 / 9.1 when used in a chroot environment (C library bug) : Undefined symbol "_ThreadRuneLocale"
Upper case -> Lower case : c = c - 'A'+ 'a';
Lower case -> Upper case c = c + 'A' - 'a';
*/
int tolower(int c){
if(c <= 'Z'){
if (c >= 'A'){
return c - 'A' + 'a';
}
}
return c;
}
int toupper(int c){
if(c >= 'a' && c <= 'z'){
return c + 'A' - 'a';
}
return c;
}
char *get_color(FILE *infile , int last){
int c,i = 0,is_hex = 0;
char temp[MAX_COLOR_STRING], *string;
while(( (c=getc(infile)) != EOF ) && ( c != '\n') && ( c != ',' ) ){
if( i > MAX_COLOR_STRING ){ canvas_error("colour string is too big ... ? ");}
if( c == '#' ){
is_hex = 1;
}
if( c != ' '){
temp[i]=tolower(c);
i++;
}
}
if( ( c == '\n' || c == EOF ) && last == 0){canvas_error("expecting more arguments in command");}
if( c == '\n' ){ done = TRUE; line_number++; }
if( c == EOF ){finished = 1;}
if( finished == 1 && last != 1 ){ canvas_error("expected more arguments");}
temp[i]='\0';
if( strlen(temp) == 0 ){ canvas_error("expected a colorname or hexnumber, but found nothing !!");}
if( is_hex == 1 ){
char red[3], green[3], blue[3];
red[0] = toupper(temp[1]); red[1] = toupper(temp[2]); red[2] = '\0';
green[0] = toupper(temp[3]); green[1] = toupper(temp[4]); green[2] = '\0';
blue[0] = toupper(temp[5]); blue[1] = toupper(temp[6]); blue[2] = '\0';
int r = (int) strtol(red, NULL, 16);
int g = (int) strtol(green, NULL, 16);
int b = (int) strtol(blue, NULL, 16);
string = (char *)my_newmem(12);
snprintf(string,11,"%d,%d,%d",r,g,b);
return string;
}
else
{
string = (char *)my_newmem(sizeof(temp));
snprintf(string,sizeof(temp),"%s",temp);
for( i = 0; i <= NUMBER_OF_COLORNAMES ; i++ ){
if( strcmp( colors[i].name , string ) == 0 ){
return colors[i].rgb;
}
}
}
/* not found...return error */
free(string);string = NULL;
canvas_error("I was expecting a color name or hexnumber...but found nothing.");
return NULL;
}
char *get_string(FILE *infile,int last){ /* last = 0 : more arguments ; last=1 final argument */
int c,i=0;
char temp[MAX_BUFFER], *string;
while(( (c=getc(infile)) != EOF ) && ( c != '\n') ){
temp[i]=c;
i++;
if(i > MAX_BUFFER){ canvas_error("string size too big...repeat command to fit string");break;}
}
if( ( c == '\n' || c == EOF ) && last == 0){canvas_error("expecting more arguments in command");}
if( c == '\n' ) { done = TRUE; line_number++; }
if( c == EOF ) {
finished = 1;
if( last != 1 ){ canvas_error("expected more arguments");}
}
temp[i]='\0';
if( strlen(temp) == 0 ){ canvas_error("expected a word or string, but found nothing !!");}
string=(char *)my_newmem(strlen(temp));
snprintf(string,sizeof(temp),"%s",temp);
return string;
}
char *get_string_argument(FILE *infile,int last){ /* last = 0 : more arguments ; last=1 final argument */
int c,i=0;
char temp[MAX_BUFFER], *string;
while(( (c=getc(infile)) != EOF ) && ( c != '\n') && ( c != ',') ){
temp[i]=c;
i++;
if(i > MAX_BUFFER){ canvas_error("string size too big...will cut it off");break;}
}
if( ( c == '\n' || c == EOF ) && last == 0){canvas_error("expecting more arguments in command");}
if( c == '\n' ) { line_number++; }
if( c == EOF ) {finished = 1;}
if( finished == 1 && last != 1 ){ canvas_error("expected more arguments");}
temp[i]='\0';
if( strlen(temp) == 0 ){ canvas_error("expected a word or string (without comma) , but found nothing !!");}
string=(char *)my_newmem(sizeof(temp));
snprintf(string,sizeof(temp),"%s",temp);
done = TRUE;
return string;
}
double get_real(FILE *infile, int last){ /* accept anything that looks like an number ? last = 0 : more arguments ; last=1 final argument */
int c,i=0,found_calc = 0;
double y;
char tmp[MAX_INT];
while(( (c=getc(infile)) != EOF ) && ( c != ',') && (c != '\n') ){
if( c != ' ' ){
/*
libmatheval will segfault when for example: "xrange -10,+10" or "xrange -10,10+" is used
We will check after assert() if it's a NULL pointer...and exit program via :
canvas_error("I'm having trouble parsing your \"expression\" ");
*/
if( i == 0 && c == '+' ){
continue;
}
else
{
if(canvas_iscalculation(c) != 0){
found_calc = 1;
c = tolower(c);
}
tmp[i] = c;
i++;
}
}
if( i > MAX_INT - 1){canvas_error("number too large");}
}
if( ( c == '\n' || c == EOF ) && last == 0){canvas_error("expecting more arguments in command");}
if( c == '\n' ){ done = TRUE; line_number++; }
if( c == EOF ){done = TRUE ; finished = 1;}
tmp[i]='\0';
if( strlen(tmp) == 0 ){canvas_error("expected a number , but found nothing !!");}
if( found_calc == 1 ){ /* use libmatheval to calculate 2*pi/3 */
void *f = evaluator_create(tmp);
assert(f);if( f == NULL ){canvas_error("I'm having trouble parsing your \"expression\" ") ;}
y = evaluator_evaluate_x(f, 1);
/* if function is bogus; y = 1 : so no core dumps */
evaluator_destroy(f);
}
else
{
y = atof(tmp);
}
return y;
}
double get_double(FILE *infile , int orientation , int last){ /* last = 0 : more arguments ; last=1 final argument */
/* orientation=0 : x-values ... orientation=1 :y-values */
int c;
int i = 0;
int found_calc = 0; /* signal user input like : 2*pi/3 */
char tmp[MAX_INT];
double dx;
while(( (c=getc(infile)) != EOF ) && ( c != ',') && (c != '\n')){
if( c != ' '){/* no spaces in numbers */
if(canvas_iscalculation(c) != 0 ){
found_calc = 1;
c = tolower(c);
}
tmp[i]=c;
i++;
if( i > MAX_INT-1){canvas_error("number too large");}
}
}
if( c == '\n' || c == EOF ){
if( last == 0 ){canvas_error("expecting more arguments");}
if( c == EOF ){finished = TRUE;}
done = TRUE;
/*return 0; */
}
tmp[i]='\0';
if( strlen(tmp) == 0 || i == 0){
if( orientation == 0 ){
canvas_error("expected a x-value \n e.g. a number in x-range / y-range coordinate system\nbut found nothing !!");
}
else
{
canvas_error("expected a y-value \n e.g. a number in x-range / y-range coordinate system\nbut found nothing !!");
}
}
if( found_calc == 1 ){ /* use libmatheval to calculate 2*pi/3 */
void *f = evaluator_create(tmp);
assert(f);
if( f == NULL ){canvas_error("I'm having trouble parsing your \"expression\" ");}
dx = evaluator_evaluate_x(f, 1);
evaluator_destroy(f);
}
else
{
dx = atof(tmp); /* no pi/e/sin(2*pi/3) found : will use atof to convert inputstring to float */
}
if( c == '\n') { line_number++; }
if( c != EOF ) {
if( c == '\n' ) {
done = TRUE;
}
}
else
{
finished = TRUE;
}
if( (done == TRUE || finished == TRUE) && last != 1 ){ canvas_error("expected more arguments");}
if(orientation == 0){
return x2px( dx ); /* convert to pixels according xrange */
}
else
{
return y2px( dx );/* convert to pixels according yrange */
}
}
void canvas_error(char *msg){
fprintf(stdout,"\n</script><hr />FATAL syntax error:line %d : %s<hr />",line_number,msg);
finished = 1;
exit(EXIT_SUCCESS);
}
/* convert x/y coordinates to pixel */
int x2px(double x){
return x*xsize/(xmax - xmin) - xsize*xmin/(xmax - xmin);
}
int y2px(double y){
return -1*y*ysize/(ymax - ymin) + ymax*ysize/(ymax - ymin);
}
double px2x(int x){
return (x*(xmax - xmin)/xsize + xmin);
}
double px2y(int y){
return (y*(ymax - ymin)/ysize + ymin);
}
void add_to_buffer(char *tmp){
if( tmp == NULL || tmp == 0 ){ canvas_error("nothing to add_to_buffer()...");}
/* do we have enough space left in buffer[MAX_BUFFER] ? */
int space_left = (int) (sizeof(buffer) - strlen(buffer));
if( space_left > strlen(tmp)){
strncat(buffer,tmp,space_left - 1);/* add safely "tmp" to the string buffer */
}
else
{
canvas_error("buffer is too big\n");
}
tmp = NULL;free(tmp);
return;
}
void reset(){
if(use_filled == TRUE){use_filled = FALSE;}
if(use_dashed == TRUE){use_dashed = FALSE;}
if(use_translate == TRUE){use_translate = FALSE;}
if(use_rotate == TRUE){use_rotate = FALSE;}
onclick = 0;
}
/* What reply format in read_canvas();
note:if userdraw is combined with inputfields...every "userdraw" based answer will append "\n" and inputfield.value()
1 = x1,x2,x3,x4....x_n
y1,y2,y3,y4....y_n
x/y in pixels
2 = x1,x2,x3,x4....x_n
y1,y2,y3,y4....y_n
x/y in xrange / yrange coordinate system
3 = x1,x2,x3,x4....x_n
y1,y2,y3,y4....y_n
r1,r2,r3,r4....r_n
x/y in pixels
r in pixels
4 = x1,x2,x3,x4....x_n
y1,y2,y3,y4....y_n
r1,r2,r3,r4....r_n
x/y in xrange / yrange coordinate system
r in pixels
5 = Ax1,Ax2,Ax3,Ax4....Ax_n
Ay1,Ay2,Ay3,Ay4....Ay_n
Bx1,Bx2,Bx3,Bx4....Bx_n
By1,By2,By3,By4....By_n
Cx1,Cx2,Cx3,Cx4....Cx_n
Cy1,Cy2,Cy3,Cy4....Cy_n
....
Zx1,Zx2,Zx3,Zx4....Zx_n
Zy1,Zy2,Zy3,Zy4....Zy_n
x/y in pixels
6 = Ax1,Ax2,Ax3,Ax4....Ax_n
Ay1,Ay2,Ay3,Ay4....Ay_n
Bx1,Bx2,Bx3,Bx4....Bx_n
By1,By2,By3,By4....By_n
Cx1,Cx2,Cx3,Cx4....Cx_n
Cy1,Cy2,Cy3,Cy4....Cy_n
....
Zx1,Zx2,Zx3,Zx4....Zx_n
Zy1,Zy2,Zy3,Zy4....Zy_n
x/y in xrange / yrange coordinate system
7 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n
x/y in pixels
8 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n
x/y in xrange / yrange coordinate system
9 = x1:y1:r1,x2:y2:r2,x3:y3:r3,x4:y4:r3...x_n:y_n:r_n
x/y in pixels
10 = x1:y1:r1,x2:y2:r2,x3:y3:r3,x4:y4:r3...x_n:y_n:r_n
x/y in xrange / yrange coordinate system
11 = Ax1,Ay1,Ax2,Ay2
Bx1,By1,Bx2,By2
Cx1,Cy1,Cx2,Cy2
Dx1,Dy1,Dx2,Dy2
......
Zx1,Zy1,Zx2,Zy2
x/y in xrange / yrange coordinate system
12 = Ax1,Ay1,Ax2,Ay2
Bx1,By1,Bx2,By2
Cx1,Cy1,Cx2,Cy2
Dx1,Dy1,Dx2,Dy2
......
Zx1,Zy1,Zx2,Zy2
x/y in pixels
13 = Ax1:Ay1:Ax2:Ay2,Bx1:By1:Bx2:By2,Cx1:Cy1:Cx2:Cy2,Dx1:Dy1:Dx2:Dy2, ... ,Zx1:Zy1:Zx2:Zy2
x/y in xrange / yrange coordinate system
14 = Ax1:Ay1:Ax2:Ay2,Bx1:By1:Bx2:By2....Zx1:Zy1:Zx2:Zy2
x/y in pixels
15 = reply from inputfields,textareas
reply1,reply2,reply3,...,reply_n
16 = read mathml inputfields only
17 = read userdraw text only (x1:y1:text1,x2:y2:text2...x_n:y_n:text_n
when ready : calculate size_t of string via snprintf(NULL,0,"blah blah...");
18 = read clock(s) : H1:M1:S1,H2:M2:S2,...H_n:M_n:S_n
19 = return clicked object number (analogue to shape-library onclick)
20 = return x/y-data in x-range/y-range of all 'draggable' images
21 = return verbatim coordinates (x1:y1) (x2:y2)...(x_n:y_n)
22 = array : x1,y1,x2,y2,x3,y3,x4,y4...x_n,y_n
x/y in xrange / yrange coordinate system
*/
void add_read_canvas(int type_reply){
/* just 1 reply type allowed */
switch(type_reply){
/* TO DO
!!!! NEED TO SIMPLIFY !!!!
answers may have:
x-values,y-values,r-values,input-fields,mathml-inputfields,text-typed answers
*/
case 1: fprintf(js_include_file,"\
\n\
function read_canvas(){\
if( userdraw_x.length == 0){alert(\"nothing drawn...\");return;}\
if( document.getElementById(\"canvas_input0\") || document.getElementById(\"mathml0\") ){\
var p = 0;var input_reply = new Array();\
if( document.getElementById(\"canvas_input0\")){\
var t = 0;\
while(document.getElementById(\"canvas_input\"+t)){\
if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
p++;\
};\
t++;\
};\
};\
if( typeof userdraw_text != 'undefined' ){\
return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+input_reply + \"\\n\"+userdraw_text;\
}\
else\
{\
return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+input_reply;\
}\
}\
else\
{\
if( typeof userdraw_text != 'undefined' ){\
return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+userdraw_text;\
}\
else\
{\
return userdraw_x+\"\\n\"+userdraw_y;\
}\
};\
};\
this.read_canvas = read_canvas;\n\
\n");
break;
case 2: fprintf(js_include_file,"\
\n\
function read_canvas(){\
if( userdraw_x.length == 0){alert(\"nothing drawn...\");return;}\
var reply_x = new Array();var reply_y = new Array();var p = 0;\
while(userdraw_x[p]){\
reply_x[p] = px2x(userdraw_x[p]);\
reply_y[p] = px2y(userdraw_y[p]);\
p++;\
};\
if(p == 0){alert(\"nothing drawn...\");return;};\
if( document.getElementById(\"canvas_input0\")){\
var p = 0;var input_reply = new Array();\
if( document.getElementById(\"canvas_input0\")){\
var t = 0;\
while(document.getElementById(\"canvas_input\"+t)){\
if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
p++;\
};\
t++;\
};\
};\
if( typeof userdraw_text != 'undefined' ){\
return reply_x+\"\\n\"+reply_y+\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
}\
else\
{\
return reply_x+\"\\n\"+reply_y+\"\\n\"+input_reply;\
}\
}\
else\
{\
if( typeof userdraw_text != 'undefined' ){\
return reply_x+\"\\n\"+reply_y+\"\\n\"+userdraw_text;\
}\
else\
{\
return reply_x+\"\\n\"+reply_y;\
};\
};\
};\
this.read_canvas = read_canvas;\n\
\n");
break;
case 3: fprintf(js_include_file,"\
\n\
function read_canvas(){\
if( userdraw_x.length == 0){alert(\"nothing drawn...\");return;}\
if( document.getElementById(\"canvas_input0\") || document.getElementById(\"mathml0\") ){\
var p = 0;var input_reply = new Array();\
if( document.getElementById(\"canvas_input0\")){\
var t = 0;\
while(document.getElementById(\"canvas_input\"+t)){\
if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
p++;\
};\
t++;\
};\
};\
if( typeof userdraw_text != 'undefined' ){\
return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+userdraw_radius+\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
}\
else\
{\
return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+userdraw_radius+\"\\n\"+input_reply;\
}\
}\
else\
{\
if( typeof userdraw_text != 'undefined' ){\
return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+userdraw_radius+\"\\n\"+userdrawW_text;\
}\
else\
{\
return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+userdraw_radius;\
}\
}\
};\
this.read_canvas = read_canvas;\n\
\n");
break;
case 4: fprintf(js_include_file,"\
\n\
function read_canvas(){\
var reply_x = new Array();var reply_y = new Array();var p = 0;\
while(userdraw_x[p]){\
reply_x[p] = px2x(userdraw_x[p]);\
reply_y[p] = px2y(userdraw_y[p]);\
p++;\
};\
if(p == 0){alert(\"nothing drawn...\");return;};\
if( document.getElementById(\"canvas_input0\") || document.getElementById(\"mathml0\") ){\
var p = 0;var input_reply = new Array();\
if( document.getElementById(\"canvas_input0\")){\
var t = 0;\
while(document.getElementById(\"canvas_input\"+t)){\
if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
p++;\
};\
t++;\
};\
};\
if( typeof userdraw_text != 'undefined' ){\
return reply_x+\"\\n\"+reply_y +\"\\n\"+userdraw_radius+\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
}\
else\
{\
return reply_x+\"\\n\"+reply_y +\"\\n\"+userdraw_radius+\"\\n\"+input_reply;\
}\
}\
else\
{\
if( typeof userdraw_text != 'undefined' ){\
return reply_x+\"\\n\"+reply_y+\"\\n\"+userdraw_radius+\"\\n\"+userdraw_text;\
}\
else\
{\
return reply_x+\"\\n\"+reply_y+\"\\n\"+userdraw_radius;\
}\
};\
};\
this.read_canvas = read_canvas;\n\
\n");
break;
/*
attention: we reset userdraw_x / userdraw_y : because userdraw_x = [][] userdraw_y = [][]
used for userdraw multiple paths
*/
case 5: fprintf(js_include_file,"\
\n\
function read_canvas(){\
var p = 0;\
var reply = \"\";\
for(p = 0; p < userdraw_x.length;p++){\
if(userdraw_x[p] != null ){\
reply = reply + userdraw_x[p]+\"\\n\"+userdraw_y[p]+\"\\n\";\
};\
};\
if(p == 0){alert(\"nothing drawn...\");return;};\
userdraw_x = [];userdraw_y = [];\
if( document.getElementById(\"canvas_input0\") || document.getElementById(\"mathml0\") ){\
var p = 0;var input_reply = new Array();\
if( document.getElementById(\"canvas_input0\")){\
var t = 0;\
while(document.getElementById(\"canvas_input\"+t)){\
if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
p++;\
};\
t++;\
};\
};\
if( typeof userdraw_text != 'undefined' ){\
return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
}\
else\
{\
return reply +\"\\n\"+input_reply;\
}\
}\
else\
{\
if( typeof userdraw_text != 'undefined' ){\
return reply+\"\\n\"+userdraw_text;\
}\
else\
{\
return reply;\
}\
};\
};\
this.read_canvas = read_canvas;\n\
\n");
break;
/*
attention: we reset userdraw_x / userdraw_y : because userdraw_x = [][] userdraw_y = [][]
used for userdraw multiple paths
*/
case 6: fprintf(js_include_file,"\
\n\
function read_canvas(){\
var p = 0;\
var reply = \"\";\
var tmp_x = new Array();\
var tmp_y = new Array();\
for(p = 0 ; p < userdraw_x.length; p++){\
tmp_x = userdraw_x[p];\
tmp_y = userdraw_y[p];\
if(tmp_x != null){\
for(var i = 0 ; i < tmp_x.length ; i++){\
tmp_x[i] = px2x(tmp_x[i]);\
tmp_y[i] = px2y(tmp_y[i]);\
};\
reply = reply + tmp_x + \"\\n\" + tmp_y +\"\\n\";\
};\
};\
if(p == 0){alert(\"nothing drawn...\");return;};\
userdraw_x = [];userdraw_y = [];\
if( document.getElementById(\"canvas_input0\") ){\
var p = 0;var input_reply = new Array();\
if( document.getElementById(\"canvas_input0\")){\
var t = 0;\
while(document.getElementById(\"canvas_input\"+t)){\
if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
p++;\
};\
t++;\
};\
};\
if( typeof userdraw_text != 'undefined' ){\
return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
}\
else\
{\
return reply +\"\\n\"+input_reply;\
}\
}\
else\
{\
if( typeof userdraw_text != 'undefined' ){\
return reply +\"\\n\"+userdraw_text;\
}\
else\
{\
return reply;\
}\
};\
};\
this.read_canvas = read_canvas;\n\
\n");
break;
case 7: fprintf(js_include_file,"\
\n\
function read_canvas(){\
var reply = new Array();\
var p = 0;\
while(userdraw_x[p]){\
reply[p] = userdraw_x[p] +\":\" + userdraw_y[p];\
p++;\
};\
if(p == 0){alert(\"nothing drawn...\");return;};\
if( document.getElementById(\"canvas_input0\") ){\
var p = 0;var input_reply = new Array();\
if( document.getElementById(\"canvas_input0\")){\
var t = 0;\
while(document.getElementById(\"canvas_input\"+t)){\
if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
p++;\
};\
t++;\
};\
};\
if( typeof userdraw_text != 'undefined' ){\
return reply+\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
}\
else\
{\
return reply+\"\\n\"+input_reply;\
}\
};\
else\
{\
if( typeof userdraw_text != 'undefined' ){\
return reply+\"\\n\"+userdraw_text;\
}\
else\
{\
return reply;\
}\
};\
};\
this.read_canvas = read_canvas;\n\
\n");
break;
case 8: fprintf(js_include_file,"\
\n\
function read_canvas(){\
var reply = new Array();\
var p = 0;\
while(userdraw_x[p]){\
reply[p] = px2x(userdraw_x[p]) +\":\" + px2y(userdraw_y[p]);\
p++;\
};\
if(p == 0){alert(\"nothing drawn...\");return;};\
if( document.getElementById(\"canvas_input0\") || document.getElementById(\"mathml0\") ){\
var p = 0;var input_reply = new Array();\
if( document.getElementById(\"canvas_input0\")){\
var t = 0;\
while(document.getElementById(\"canvas_input\"+t)){\
if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
p++;\
};\
t++;\
};\
};\
if( typeof userdraw_text != 'undefined' ){\
return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
}\
else\
{\
return reply +\"\\n\"+input_reply;\
}\
}\
else\
{\
if( typeof userdraw_text != 'undefined' ){\
return reply +\"\\n\"+userdraw_text;\
}\
else\
{\
return reply;\
}\
};\
};\
this.read_canvas = read_canvas;\n\
\n");
break;
case 9: fprintf(js_include_file,"\
\n\
function read_canvas(){\
var reply = new Array();\
var p = 0;\
while(userdraw_x[p]){\
reply[p] = userdraw_x[p] +\":\" + userdraw_y[p] + \":\" + userdraw_radius[p];\
p++;\
};\
if(p == 0){alert(\"nothing drawn...\");return;};\
if( document.getElementById(\"canvas_input0\") ){\
var p = 0;var input_reply = new Array();\
if( document.getElementById(\"canvas_input0\")){\
var t = 0;\
while(document.getElementById(\"canvas_input\"+t)){\
if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
p++;\
};\
t++;\
};\
};\
if( typeof userdraw_text != 'undefined' ){\
return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
}\
else\
{\
return reply +\"\\n\"+input_reply;\
}\
}\
else\
{\
if( typeof userdraw_text != 'undefined' ){\
return reply +\"\\n\"+userdraw_text;\
}\
else\
{\
return reply;\
}\
};\
};\
this.read_canvas = read_canvas;\n\
\n");
break;
case 10: fprintf(js_include_file,"\
\n\
function read_canvas(){\
var reply = new Array();\
var p = 0;\
while(userdraw_x[p]){\
reply[p] = px2x(userdraw_x[p]) +\":\" + px2y(userdraw_y[p]) +\":\" + userdraw_radius[p];\
p++;\
};\
if(p == 0){alert(\"nothing drawn...\");return;};\
if( document.getElementById(\"canvas_input0\") ){\
var p = 0;var input_reply = new Array();\
if( document.getElementById(\"canvas_input0\")){\
var t = 0;\
while(document.getElementById(\"canvas_input\"+t)){\
if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
p++;\
};\
t++;\
};\
};\
if( typeof userdraw_text != 'undefined' ){\
return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
}\
else\
{\
return reply +\"\\n\"+input_reply;\
}\
}\
else\
{\
if( typeof userdraw_text != 'undefined' ){\
return reply +\"\\n\"+userdraw_text;\
}\
else\
{\
return reply;\
}\
};\
};\
this.read_canvas = read_canvas;\n\
\n");
break;
case 11: fprintf(js_include_file,"\
\n\
function read_canvas(){\
var reply = \"\";\
var p = 0;\
while(userdraw_x[p]){\
reply = reply + px2x(userdraw_x[p]) +\",\" + px2y(userdraw_y[p]) +\",\" + px2x(userdraw_x[p+1]) +\",\" + px2y(userdraw_y[p+1]) +\"\\n\" ;\
p = p+2;\
};\
if(p == 0){alert(\"nothing drawn...\");return;};\
if( document.getElementById(\"canvas_input0\") || document.getElementById(\"mathml0\") ){\
var p = 0;var input_reply = new Array();\
if( document.getElementById(\"canvas_input0\")){\
var t = 0;\
while(document.getElementById(\"canvas_input\"+t)){\
if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
p++;\
};\
t++;\
};\
};\
if( typeof userdraw_text != 'undefined' ){\
return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
}\
else\
{\
return reply +\"\\n\"+input_reply;\
}\
}\
else\
{\
if( typeof userdraw_text != 'undefined' ){\
return reply +\"\\n\"+userdraw_text;\
}\
else\
{\
return reply;\
}\
};\
};\
this.read_canvas = read_canvas;\n\
\n");
break;
case 12: fprintf(js_include_file,"\
\n\
function read_canvas(){\
var reply = \"\";\
var p = 0;\
for(p = 0; p< userdraw_x.lenght;p = p+2){\
if(userdraw_x[p] != null){\
reply = reply + userdraw_x[p] +\",\" + userdraw_y[p] +\",\" + userdraw_x[p+1] +\",\" + userdraw_y[p+1] +\"\\n\" ;\
};\
};\
if(p == 0){alert(\"nothing drawn...\");return;};\
if( document.getElementById(\"canvas_input0\") ){\
var p = 0;var input_reply = new Array();\
if( document.getElementById(\"canvas_input0\")){\
var t = 0;\
while(document.getElementById(\"canvas_input\"+t)){\
if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
p++;\
};\
t++;\
};\
};\
if( typeof userdraw_text != 'undefined' ){\
return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
}\
else\
{\
return reply +\"\\n\"+input_reply;\
}\
}\
else\
{\
if( typeof userdraw_text != 'undefined' ){\
return reply +\"\\n\"+userdraw_text\
}\
else\
{\
return reply;\
}\
};\
};\
this.read_canvas = read_canvas;\n\
\n");
break;
case 13: fprintf(js_include_file,"\
\n\
function read_canvas(){\
var reply = new Array();\
var p = 0;var i = 0;\
while(userdraw_x[p]){\
reply[i] = px2x(userdraw_x[p]) +\":\" + px2y(userdraw_y[p]) +\":\" + px2x(userdraw_x[p+1]) +\":\" + px2y(userdraw_y[p+1]);\
p = p+2;i++;\
};\
if(p == 0){alert(\"nothing drawn...\");return;};\
if( document.getElementById(\"canvas_input0\") ){\
var p = 0;var input_reply = new Array();\
if( document.getElementById(\"canvas_input0\")){\
var t = 0;\
while(document.getElementById(\"canvas_input\"+t)){\
if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
p++;\
};\
t++;\
};\
};\
if( typeof userdraw_text != 'undefined' ){\
return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
}\
else\
{\
return reply +\"\\n\"+input_reply;\
}\
}\
else\
{\
if( typeof userdraw_text != 'undefined' ){\
return reply +\"\\n\"+userdraw_text\
}\
else\
{\
return reply;\
}\
};\
};\
this.read_canvas = read_canvas;\n\
\n");
break;
case 14: fprintf(js_include_file,"\
\n\
function read_canvas(){\
var reply = new Array();\
var p = 0;var i = 0;\
while(userdraw_x[p]){\
reply[i] = userdraw_x[p] +\":\" + userdraw_y[p] +\":\" + userdraw_x[p+1] +\":\" + userdraw_y[p+1];\
p = p+2;i++;\
};\
if(p == 0){alert(\"nothing drawn...\");return;};\
if( document.getElementById(\"canvas_input0\") ){\
var p = 0;var input_reply = new Array();\
if( document.getElementById(\"canvas_input0\")){\
var t = 0;\
while(document.getElementById(\"canvas_input\"+t)){\
if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
p++;\
};\
t++;\
};\
};\
if( typeof userdraw_text != 'undefined' ){\
return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
}\
else\
{\
return reply +\"\\n\"+input_reply;\
}\
}\
else\
{\
if( typeof userdraw_text != 'undefined' ){\
return reply +\"\\n\"+userdraw_text;\
}\
else\
{\
return reply;\
}\
};\
};\
this.read_canvas = read_canvas;\n\
\n");
break;
case 15: fprintf(js_include_file,"\
\n\
function read_canvas(){\
var input_reply = new Array();\
var p = 0;\
if( document.getElementById(\"canvas_input0\")){\
var t = 0;\
while(document.getElementById(\"canvas_input\"+t)){\
if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
p++;\
};\
t++;\
};\
};\
if( typeof userdraw_text != 'undefined' ){\
return input_reply +\"\\n\"+userdraw_text;\
}\
else\
{\
return input_reply;\
};\
};\
this.read_canvas = read_canvas;\n\
\n");
break;
case 16: fprintf(js_include_file,"\
\n\
function read_mathml(){\
var reply = new Array();\
var p = 0;\
if( document.getElementById(\"mathml0\")){\
while(document.getElementById(\"mathml\"+p)){\
reply[p] = document.getElementById(\"mathml\"+p).value;\
p++;\
};\
};\
return reply;\
};\
this.read_mathml = read_mathml;\n\
\n");
break;
case 17: fprintf(js_include_file,"\
\n\
function read_canvas(){\
if( userdraw_text.length == 0){alert(\"no text typed...\");return;}\
return userdraw_text;\
};\
this.read_canvas = read_canvas;\n\
\n");
break;
case 18: fprintf(js_include_file,"\
\n\
function read_canvas(){\
var p = 0;\
var reply = new Array();\
var name;\
var t = true;\
while(t){\
try{ name = eval('clocks'+p);\
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;};\
};\
if( p == 0){alert(\"clock(s) not modified...\");return;}\
return reply;\
};\
this.read_canvas = read_canvas;\n\
\n");
break;
case 19: fprintf(js_include_file,"\
\n\
function read_canvas(){\
return reply[0];\
};\
this.read_canvas = read_canvas;\n\
\n");
case 20: fprintf(js_include_file,"\
\n\
function read_canvas(){\
var len = ext_drag_images.length;\
var reply = new Array(len);\
for(var p = 0 ; p < len ; p++){\
var img = ext_drag_images[p];\
reply[p] = px2x(img[6])+\":\"+px2y(img[7]);\
};\
return reply;\
};\
this.read_canvas = read_canvas;\n\
\n");
break;
case 21: fprintf(js_include_file,"\
\n\
function read_canvas(){\
if( userdraw_x.length == 0){alert(\"nothing drawn...\");return;}\
var reply_coord = new Array();var p = 0;\
while(userdraw_x[p]){\
reply_coord[p] = \"(\"+px2x(userdraw_x[p])+\":\"+px2y(userdraw_y[p])+\")\";\
p++;\
};\
if(p == 0){alert(\"nothing drawn...\");return;};\
if( document.getElementById(\"canvas_input0\") ){\
var p = 0;var input_reply = new Array();\
if( document.getElementById(\"canvas_input0\")){\
var t = 0;\
while(document.getElementById(\"canvas_input\"+t)){\
if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
p++;\
};\
t++;\
};\
};\
if( typeof userdraw_text != 'undefined' ){\
return reply_coord+\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
}\
else\
{\
return reply_coord+\"\\n\"+input_reply;\
}\
}\
else\
{\
if( typeof userdraw_text != 'undefined' ){\
return reply_coord+\"\\n\"+userdraw_text;\
}\
else\
{\
return reply_coord;\
};\
};\
};\
this.read_canvas = read_canvas;\n\
\n");
break;
case 22: fprintf(js_include_file,"\
\n\
function read_canvas(){\
var reply = new Array();\
var p = 0;\
var idx = 0;\
while(userdraw_x[p]){\
reply[idx] = px2x(userdraw_x[p]);\
idx++;\
reply[idx] = px2y(userdraw_y[p]);\
idx++;p++;\
};\
if(p == 0){alert(\"nothing drawn...\");return;};\
if( document.getElementById(\"canvas_input0\") ){\
var p = 0;var input_reply = new Array();\
if( document.getElementById(\"canvas_input0\")){\
var t = 0;\
while(document.getElementById(\"canvas_input\"+t)){\
if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
p++;\
};\
t++;\
};\
};\
if( typeof userdraw_text != 'undefined' ){\
return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
}\
else\
{\
return reply +\"\\n\"+input_reply;\
}\
}\
else\
{\
if( typeof userdraw_text != 'undefined' ){\
return reply +\"\\n\"+userdraw_text;\
}\
else\
{\
return reply;\
}\
};\
};\
this.read_canvas = read_canvas;\n\
\n");
break;
default: canvas_error("hmmm unknown replyformat...");break;
}
return;
}
/*
add drawfunction :
- functions used by userdraw_primitives (circle,rect,path,triangle...)
- things not covered by the drag&drop library (static objects like parallel, lattice ,gridfill , imagefill)
- grid / mathml
- will not scale or zoom in
- will not be filled via pixel operations like fill / floodfill / filltoborder / clickfill
- is printed directly into 'js_include_file'
*/
void add_javascript_functions(int js_functions[],int canvas_root_id){
int i;
for(i = 0 ; i < MAX_JS_FUNCTIONS; i++){
if( js_functions[i] == 1){
switch(i){
case DRAG_EXTERNAL_IMAGE:
fprintf(js_include_file,"\n\n\
var external_canvas = create_canvas%d(7,xsize,ysize);\n\
var external_ctx = external_canvas.getContext(\"2d\");\n\
var external_canvas_rect = external_canvas.getBoundingClientRect();\n\
canvas_div.addEventListener(\"mousedown\",setxy,false);\n\
canvas_div.addEventListener(\"mouseup\",dragstop,false);\n\
canvas_div.addEventListener(\"mousemove\",dragxy,false);\n\
var selected_image = null;\n\
var ext_image_cnt = 0;\n\
var ext_drag_images = new Array();\n\
function drag_external_image(URL,sx,sy,swidth,sheight,x0,y0,width,height,idx,draggable){\n\
ext_image_cnt = idx;\n\
var image = new Image();\n\
image.src = URL;\n\
image.onload = function(){\n\
if( x0 < 1 ){ x0 = 0; };if( y0 < 1 ){ y0 = 0; };if( sx < 1 ){ sx = 0; };if( sy < 1 ){ sy = 0; };\n\
if( width < 1 ){ width = image.width; };if( height < 1 ){ height = image.height; };\n\
if( swidth < 1 ){ swidth = image.width; };if( sheight < 1 ){ sheight = image.height; };\n\
img = new Array(10);\n\
img[0] = draggable;img[1] = image;img[2] = sx;img[3] = sy;img[4] = swidth;img[5] = sheight;\n\
img[6] = x0;img[7] = y0;img[8] = width;img[9] = height;\n\
ext_drag_images[idx] = img;\n\
external_ctx.drawImage(img[1],img[2],img[3],img[4],img[5],img[6],img[7],img[8],img[9]);\n\
};\n\
};\n\
function dragstop(evt){\n\
selected_image = null;return;\n\
};\n\
function dragxy(evt){\n\
if( selected_image != null ){\n\
var xoff = (document.documentElement.scrollLeft ? document.documentElement.scrollLeft : document.body.scrollLeft);\n\
var yoff = (document.documentElement.scrollTop ? document.documentElement.scrollTop :document.body.scrollTop);\n\
var s_img = ext_drag_images[selected_image];\n\
s_img[6] = evt.clientX - external_canvas_rect.left + xoff;\n\
s_img[7] = evt.clientY - external_canvas_rect.top + yoff;\n\
ext_drag_images[selected_image] = s_img;\n\
external_ctx.clearRect(0,0,xsize,ysize);\n\
for(var i = 0; i <= ext_image_cnt ; i++){\n\
var img = ext_drag_images[i];\n\
external_ctx.drawImage(img[1],img[2],img[3],img[4],img[5],img[6],img[7],img[8],img[9]);\n\
};\n\
};\n\
};\n\
function setxy(evt){\n\
if( ! selected_image && evt.which == 1 ){\n\
var xoff = (document.documentElement.scrollLeft ? document.documentElement.scrollLeft : document.body.scrollLeft);\n\
var yoff = (document.documentElement.scrollTop ? document.documentElement.scrollTop :document.body.scrollTop);\n\
var xm = evt.clientX - external_canvas_rect.left + xoff;\n\
var ym = evt.clientY - external_canvas_rect.top + yoff;\n\
for(var p = 0 ; p <= ext_image_cnt ; p++){\n\
var img = ext_drag_images[p];\n\
if( img[0] == 1 ){\n\
var w = img.width;\n\
var h = img.height;\n\
if( xm > img[6] && xm < img[6] + img[4]){\n\
if( ym > img[7] && ym < img[7] + img[5]){\n\
img[6] = xm;\n\
img[7] = ym;\n\
ext_drag_images[p] = img;\n\
selected_image = p;\n\
dragxy(evt);\n\
};\n\
};\n\
};\n\
};\n\
}\n\
else\n\
{\n\
selected_image = null;\n\
}\n\
};",canvas_root_id);
break;
case DRAW_EXTERNAL_IMAGE:
fprintf(js_include_file,"\n\n\
draw_external_image = function(URL,sx,sy,swidth,sheight,x0,y0,width,height,draggable){\
var image = new Image();\
image.src = URL;\
var canvas_bg_div = document.getElementById(\"canvas_div%d\");\
image.onload = function(){\
if( x0 < 1 ){ x0 = 0; };\
if( y0 < 1 ){ y0 = 0; };\
if( sx < 1 ){ sx = 0; };\
if( sy < 1 ){ sy = 0; };\
if( width < 1 ){ width = image.width;};\
if( height < 1 ){ height = image.height;};\
if( swidth < 1 ){ swidth = image.width;};\
if( sheight < 1 ){ sheight = image.height;};\
var ml = x0 - sx;\
var mh = y0 - sy;\
canvas_bg_div.style.backgroundPosition= \"left \"+ml+\"px top \"+mh+\"px\";\
canvas_bg_div.style.backgroundSize = width+\"px \"+height+\"px\";\
canvas_bg_div.style.backgroundRepeat = \"no-repeat\";\
canvas_bg_div.style.backgroundPosition= sx+\"px \"+sy+\"px\";\
canvas_bg_div.style.backgroundImage = \"url(\" + URL + \")\";\
};\
};\n",canvas_root_id);
break;
case DRAW_ZOOM_BUTTONS: /* 6 rectangles 15x15 px forbidden zone for drawing : y < ysize - 15*/
fprintf(js_include_file,"\n\n\
draw_zoom_buttons = function(canvas_type,color,opacity){\
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);\
};\
var ctx = obj.getContext(\"2d\");\
ctx.font =\"18px Ariel\";\
ctx.textAlign = \"right\";\
ctx.fillStyle=\"rgba(\"+color+\",\"+opacity+\")\";\
ctx.fillText(\"+\",xsize,ysize);\
ctx.fillText(\"\\u2212\",xsize - 15,ysize);\
ctx.fillText(\"\\u2192\",xsize - 30,ysize-2);\
ctx.fillText(\"\\u2190\",xsize - 45,ysize-2);\
ctx.fillText(\"\\u2191\",xsize - 60,ysize-2);\
ctx.fillText(\"\\u2193\",xsize - 75,ysize-2);\
ctx.fillText(\"\\u00D7\",xsize - 90,ysize-2);\
ctx.stroke();\
};\n",canvas_root_id,canvas_root_id,canvas_root_id);
break;
case DRAW_GRIDFILL:/* not used for userdraw */
fprintf(js_include_file,"\n\n\
draw_gridfill = function(canvas_type,x0,y0,dx,dy,linewidth,color,opacity,xsize,ysize){\
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);\
};\
var ctx = obj.getContext(\"2d\");\
var x,y;\
ctx.save();\
ctx.strokeStyle=\"rgba(\"+color+\",\"+opacity+\")\";\
for( x = x0 ; x < xsize+dx ; x = x + dx ){\
ctx.moveTo(x,y0);\
ctx.lineTo(x,ysize);\
};\
for( y = y0 ; y < ysize +dx; y = y + dy ){\
ctx.moveTo(x0,y);\
ctx.lineTo(xsize,y);\
};\
ctx.stroke();\
ctx.restore();\
return;};\n",canvas_root_id,canvas_root_id,canvas_root_id);
break;
case DRAW_IMAGEFILL:/* not used for userdraw */
fprintf(js_include_file,"\n\n\
draw_imagefill = function(canvas_type,x0,y0,URL,xsize,ysize){\
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);\
};\
var ctx = obj.getContext(\"2d\");\
ctx.save();\
var img = new Image();\
img.src = URL;\
img.onload = function(){\
if( (img.width > xsize-x0) && (img.height > ysize-y0) ){\
ctx.drawImage(img,x0,y0,xsize,ysize);\
}\
else\
{\
var repeat = \"repeat\";\
if(img.width > xsize - x0){\
repeat = \"repeat-y\";\
}\
else\
{\
if( img.height > ysize -x0 ){\
repeat = \"repeat-x\";\
}\
}\
var pattern = ctx.createPattern(img,repeat);\
ctx.rect(x0,y0,xsize,ysize);\
ctx.fillStyle = pattern;\
}\
ctx.fill();\
};\
ctx.restore();\
return;\
};\n",canvas_root_id,canvas_root_id,canvas_root_id);
break;
case DRAW_DOTFILL:/* not used for userdraw */
fprintf(js_include_file,"\n\n\
draw_dotfill = function(canvas_type,x0,y0,dx,dy,radius,color,opacity,xsize,ysize){\
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);\
};\
var ctx = obj.getContext(\"2d\");\
var x,y;\
ctx.closePath();\
ctx.save();\
ctx.fillStyle=\"rgba(\"+color+\",\"+opacity+\")\";\
for( x = x0 ; x < xsize+dx ; x = x + dx ){\
for( y = y0 ; y < ysize+dy ; y = y + dy ){\
ctx.arc(x,y,radius,0,2*Math.PI,false);\
ctx.closePath();\
}\
}\
ctx.fill();\
ctx.restore();\
return;};\n",canvas_root_id,canvas_root_id,canvas_root_id);
break;
case DRAW_HATCHFILL:/* not used for userdraw */
fprintf(js_include_file,"\n\n\
draw_hatchfill = function(canvas_type,x0,y0,dx,dy,linewidth,stroke_color,stroke_opacity,xsize,ysize){\
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);\
};\
var ctx = obj.getContext(\"2d\");\
var x;\
var y;\
ctx.save();\
ctx.lineWidth = linewidth;\
ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
y = ysize;\
for( x = x0 ; x < xsize ; x = x + dx ){\
ctx.moveTo(x,y0);\
ctx.lineTo(xsize,y);\
y = y - dy;\
};\
y = y0;\
for( x = xsize ; x > 0 ; x = x - dx){\
ctx.moveTo(x,ysize);\
ctx.lineTo(x0,y);\
y = y + dy;\
};\
x = x0;\
for( y = y0 ; y < ysize ; y = y + dy ){\
ctx.moveTo(xsize,y);\
ctx.lineTo(x,ysize);\
x = x + dx;\
};\
x = xsize;\
for( y = ysize ; y > y0 ; y = y - dy ){\
ctx.moveTo(x,y0);\
ctx.lineTo(x0,y);\
x = x - dx;\
};\
ctx.stroke();\
ctx.restore();\
return;\
}\n",canvas_root_id,canvas_root_id,canvas_root_id);
break;
case DRAW_CIRCLES:/* used for userdraw */
fprintf(js_include_file,"\n\n\
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){\
ctx.save();\
if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
ctx.lineWidth = line_width;\
for(var p = 0 ; p < x_points.length ; p++ ){\
ctx.beginPath();\
ctx.arc(x_points[p],y_points[p],radius[p],0,2*Math.PI,false);\
ctx.closePath();\
if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
if(use_filled == 1){ctx.fillStyle = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";ctx.fill();}\
ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
ctx.stroke();\
}\
ctx.restore();\
return;\
};\n");
break;
case DRAW_SEGMENTS:/* used for userdraw */
fprintf(js_include_file,"\n\n\
draw_segments = function(ctx,x_points,y_points,line_width,stroke_color,stroke_opacity,use_dashed,dashtype0,dashtype1,use_rotate,angle,use_translate,vector){\
ctx.save();\
if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
ctx.lineWidth = line_width;\
ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
for(var p = 0 ; p < x_points.length ; p = p+2 ){\
ctx.beginPath();\
ctx.moveTo(x_points[p],y_points[p]);\
ctx.lineTo(x_points[p+1],y_points[p+1]);\
ctx.closePath();\
ctx.stroke();\
}\
ctx.restore();\
return;\
};");
break;
case DRAW_LINES:/* used for userdraw */
fprintf(js_include_file,"\n\n\
function calc_line(x1,x2,y1,y2){\
var marge = 2;\
if(x1 < x2+marge && x1>x2-marge){\
return [x1,0,x1,ysize];\
};\
if(y1 < y2+marge && y1>y2-marge){\
return [0,y1,xsize,y1];\
};\
var Y1 = y1 - (x1)*(y2 - y1)/(x2 - x1);\
var Y2 = y1 + (xsize - x1)*(y2 - y1)/(x2 - x1);\
return [0,Y1,xsize,Y2];\
};\
draw_lines = function(ctx,x_points,y_points,line_width,stroke_color,stroke_opacity,use_dashed,dashtype0,dashtype1,use_rotate,angle,use_translate,vector){\
ctx.save();\
var line = new Array(4);\
if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
ctx.lineWidth = line_width;\
ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
for(var p = 0 ; p < x_points.length ; p = p+2 ){\
line = calc_line(x_points[p],x_points[p+1],y_points[p],y_points[p+1]);\
ctx.beginPath();\
ctx.moveTo(line[0],line[1]);\
ctx.lineTo(line[2],line[3]);\
ctx.closePath();\
ctx.stroke();\
}\
ctx.restore();\
return;\
};");
break;
case DRAW_CROSSHAIRS:/* used for userdraw */
fprintf(js_include_file,"\n\n\
draw_crosshairs = function(ctx,x_points,y_points,line_width,crosshair_size,stroke_color,stroke_opacity,use_rotate,angle,use_translate,vector){\
if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
ctx.lineWidth = line_width;\
ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
var x1,x2,y1,y2;\
for(var p = 0 ; p < x_points.length ; p++ ){\
x1 = x_points[p] - crosshair_size;\
x2 = x_points[p] + crosshair_size;\
y1 = y_points[p] - crosshair_size;\
y2 = y_points[p] + crosshair_size;\
ctx.beginPath();\
ctx.moveTo(x1,y1);\
ctx.lineTo(x2,y2);\
ctx.closePath();\
ctx.stroke();\
ctx.beginPath();\
ctx.moveTo(x2,y1);\
ctx.lineTo(x1,y2);\
ctx.closePath();\
ctx.stroke();\
}\
ctx.restore();\
return;\
};\n");
break;
case DRAW_RECTS:/* used for userdraw */
fprintf(js_include_file,"\n\n\
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){\
ctx.save();\
if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
ctx.lineWidth = line_width;\
ctx.strokeStyle = \"rgba('+stroke_color+','+stroke_opacity+')\";\
if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];}};\
for(var p = 0 ; p < x_points.length ; p = p + 2){\
ctx.beginPath();\
ctx.rect(x_points[p],y_points[p],x_points[p+1]-x_points[p],y_points[p+1]-y_points[p]);\
ctx.closePath();\
if(use_filled == 1 ){ctx.fillStyle = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";ctx.fill();}\
ctx.stroke();\
};\
ctx.restore();\
return;\
};\n");
break;
case DRAW_ROUNDRECTS:/* used for userdraw */
fprintf(js_include_file,"\n\n\
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){\
ctx.save();\
if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
var x,y,w,h,r;\
for(var p = 0; p < x_points.length; p = p+2){\
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);\
ctx.beginPath();ctx.moveTo(x + r, y);\
ctx.lineTo(x + w - r, y);\
ctx.quadraticCurveTo(x + w, y, x + w, y + r);\
ctx.lineTo(x + w, y + h - r);\
ctx.quadraticCurveTo(x + w, y + h, x + w - r, y + h);\
ctx.lineTo(x + r, y + h);\
ctx.quadraticCurveTo(x, y + h, x, y + h - r);\
ctx.lineTo(x, y + r);\
ctx.quadraticCurveTo(x, y, x + r, y);\
ctx.closePath();if( use_dashed == 1 ){ctx.setLineDash([dashtype0,dashtype1]);};\
ctx.strokeStyle =\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
if( use_filled == 1 ){ctx.fillStyle =\"rgba(\"+fill_color+\",\"+fill_opacity+\")\";ctx.fill();};\
ctx.stroke();\
}\
ctx.restore();\
};\n");
break;
case DRAW_ELLIPSES:/* not used for userdraw */
fprintf(js_include_file,"\n\n\
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){\
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);\
};\
var ctx = obj.getContext(\"2d\");\
ctx.save();\
if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
var cx,cy,ry,rx;\
ctx.lineWidth = line_width;\
if( use_filled == 1 ){ctx.fillStyle =\"rgba(\"+fill_color+\",\"+fill_opacity+\")\";};\
if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
for(var p=0;p< x_points.length;p = p+2){\
ctx.beginPath();\
cx = x_points[p];cy = y_points[p];rx = 0.25*x_points[p+1];ry = 0.25*y_points[p+1];\
ctx.translate(cx - rx, cy - ry);\
ctx.scale(rx, ry);\
ctx.arc(1, 1, 1, 0, 2 * Math.PI, false);\
if( use_filled == 1 ){ctx.fill();}\
ctx.stroke();\
};\
ctx.restore();\
};\n",canvas_root_id,canvas_root_id,canvas_root_id);
break;
case DRAW_PATHS: /* used for userdraw */
fprintf(js_include_file,"\n\n\
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){\
ctx.save();\
if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
ctx.lineWidth = line_width;\
ctx.lineJoin = \"round\";\
ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
ctx.beginPath();\
ctx.moveTo(x_points[0],y_points[0]);\
for(var p = 1 ; p < x_points.length ; p++ ){ctx.lineTo(x_points[p],y_points[p]);}\
if(closed_path == 1){ctx.lineTo(x_points[0],y_points[0]);ctx.closePath();}\
if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
if(use_filled == 1){ctx.fillStyle = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";ctx.fill();}\
ctx.stroke();\
ctx.restore();\
return;\
};");
break;
case DRAW_ARROWS:/* used for userdraw */
fprintf(js_include_file,"\n\n\
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){\
ctx.save();\
if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
ctx.strokeStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
ctx.fillStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
ctx.lineWidth = line_width;\
if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
ctx.lineCap = \"round\";\
ctx.save();\
var x1,y1,x2,y2,dx,dy,len;\
for(var p = 0 ; p < x_points.length - 1 ; p = p +2){\
ctx.restore();ctx.save();\
x1 = x_points[p];y1 = y_points[p];x2 = x_points[p+1];y2 = y_points[p+1];dx = x2 - x1;dy = y2 - y1;\
len = Math.sqrt(dx*dx+dy*dy);\
ctx.translate(x2,y2);\
ctx.rotate(Math.atan2(dy,dx));\
ctx.lineCap = \"round\";\
ctx.beginPath();\
ctx.moveTo(0,0);\
ctx.lineTo(-len,0);\
ctx.closePath();\
ctx.stroke();\
ctx.beginPath();\
ctx.moveTo(0,0);\
ctx.lineTo(-1*arrow_head,-0.5*arrow_head);\
ctx.lineTo(-1*arrow_head, 0.5*arrow_head);\
ctx.closePath();\
ctx.fill();\
if( type == 2 ){\
ctx.restore();\
ctx.save();\
ctx.translate(x1,y1);\
ctx.rotate(Math.atan2(-dy,-dx));\
ctx.beginPath();\
ctx.moveTo(0,0);\
ctx.lineTo(-1*arrow_head,-0.5*arrow_head);\
ctx.lineTo(-1*arrow_head, 0.5*arrow_head);\
ctx.closePath();\
ctx.stroke();\
ctx.fill();\
}\
}\
ctx.restore();\
return;\
};\n");
break;
case DRAW_VIDEO:/* not used for userdraw */
fprintf(js_include_file,"\n\n\
draw_video = function(canvas_root_id,x,y,w,h,URL){\
var canvas_div = document.getElementById(\"canvas_div\"+canvas_root_id);\
var video_div = document.createElement(\"div\");\
canvas_div.appendChild(video_div);\
video_div.style.position = \"absolute\";\
video_div.style.left = x+\"px\";\
video_div.style.top = y+\"px\";\
video_div.style.width = w+\"px\";\
video_div.style.height = h+\"px\";\
var video = document.createElement(\"video\");\
video_div.appendChild(video);\
video.style.width = w+\"px\";\
video.style.height = h+\"px\";\
video.autobuffer = true;\
video.controls = true;video.autoplay = false;\
var src = document.createElement(\"source\");\
src.type = \"video/mp4\";\
src.src = URL;\
video.appendChild(src);\
video.load();\
return;\
};\n");
break;
case DRAW_AUDIO:/* not used for userdraw */
fprintf(js_include_file,"\n\n\
draw_audio = function(canvas_root_id,x,y,w,h,loop,visible,URL1,URL2){\
var canvas_div = document.getElementById(\"canvas_div\"+canvas_root_id);\
var audio_div = document.createElement(\"div\");\
canvas_div.appendChild(audio_div);\
audio_div.style.position = \"absolute\";\
audio_div.style.left = x+\"px\";\
audio_div.style.top = y+\"px\";\
audio_div.style.width = w+\"px\";\
audio_div.style.height = h+\"px\";\
var audio = document.createElement(\"audio\");\
audio_div.appendChild(audio);\
audio.setAttribute(\"style\",\"width:\"+w+\"px;height:\"+h+\"px\");\
audio.autobuffer = true;\
if(visible == 1 ){ audio.controls = true;audio.autoplay = false;}else{ audio.controls = false;audio.autoplay = true;}\
if(loop == 1 ){ audio.loop = true;}else{ audio.loop = false;}\
var src1 = document.createElement(\"source\");\
src1.type = \"audio/ogg\";\
src1.src = URL1;\
audio.appendChild(src1);\
var src2 = document.createElement(\"source\");\
src2.type = \"audio/mpeg\";\
src2.src = URL2;\
audio.appendChild(src2);\
audio.load();\
return;\
};\n");
break;
case DRAW_HTTP:/* not used for userdraw */
fprintf(js_include_file,"\n\n\
draw_http = function(canvas_root_id,x,y,w,h,URL){\
var canvas_div = document.getElementById(\"canvas_div\"+canvas_root_id);\
var http_div = document.createElement(\"div\");\
var iframe = document.createElement(\"iframe\");\
canvas_div.appendChild(http_div);\
http_div.appendChild(iframe);\
iframe.src = URL;\
iframe.setAttribute(\"width\",w);\
iframe.setAttribute(\"height\",h);\
return;\
};\n");
break;
case DRAW_XML:
fprintf(js_include_file,"\n\n\
draw_xml = function(canvas_root_id,x,y,w,h,mathml,onclick){\
var canvas_div = document.getElementById(\"canvas_div\"+canvas_root_id);\
var xml_div = document.createElement(\"div\");\
canvas_div.appendChild(xml_div);\
xml_div.innerHTML = mathml;\
if(onclick != 0){\
xml_div.onclick = function(){\
reply[0] = onclick;\
alert(\"send \"+onclick+\" ?\");\
};\
};\
xml_div.style.position = \"absolute\";\
xml_div.style.left = x+\"px\";\
xml_div.style.top = y+\"px\";\
xml_div.style.width = w+\"px\";\
xml_div.style.height = h+\"px\";\
return;\
};\n"
);
break;
case DRAW_GRID:/* not used for userdraw */
fprintf(js_include_file,"\n\n\
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){\
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);\
};\
var ctx = obj.getContext(\"2d\");\
ctx.clearRect(0,0,xsize,ysize);\
if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
ctx.save();\
if( use_translate == 1 ){ctx.translate(vector[0],vector[1]);};\
if( use_rotate == 1 ){ctx.translate(x2px(0),y2px(0));ctx.rotate(angle*Math.PI/180);ctx.translate(-1*(x2px(0)),-1*(y2px(0)));};\
var stroke_color = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
ctx.fillStyle = \"rgba(\"+font_color+\",\"+1.0+\")\";\
var axis_color = \"rgba(\"+axis_color+\",\"+stroke_opacity+\")\";\
ctx.font = font_family;\
var xstep = xsize*xmajor/(xmax - xmin);\
var ystep = ysize*ymajor/(ymax - ymin);\
var x2step = xstep / xminor;\
var y2step = ystep / yminor;\
var zero_y = y2px(0);\
var zero_x = x2px(0);\
ctx.beginPath();\
ctx.lineWidth = line_width;\
ctx.strokeStyle = stroke_color;\
for(var p = zero_x ; p < xsize; p = p + xstep){\
ctx.moveTo(p,0);\
ctx.lineTo(p,ysize);\
};\
for(var p = zero_x ; p > 0; p = p - xstep){\
ctx.moveTo(p,0);\
ctx.lineTo(p,ysize);\
};\
for(var p = zero_y ; p < ysize; p = p + ystep){\
ctx.moveTo(0,p);\
ctx.lineTo(xsize,p);\
};\
for(var p = zero_y ; p > 0; p = p - ystep){\
ctx.moveTo(0,p);\
ctx.lineTo(xsize,p);\
};\
if( typeof xaxislabel !== 'undefined' ){\
ctx.save();\
ctx.font = \"italic \"+font_size+\"px Ariel\";\
var corr = ctx.measureText(xaxislabel).width;\
ctx.fillText(xaxislabel,xsize - 1.5*corr,zero_y - tics_length - 0.4*font_size);\
ctx.restore();\
};\
if( typeof yaxislabel !== 'undefined' ){\
ctx.save();\
ctx.font = \"italic \"+font_size+\"px Ariel\";\
corr = ctx.measureText(yaxislabel).width;\
ctx.translate(zero_x+tics_length + font_size,corr+font_size);\
ctx.rotate(-0.5*Math.PI);\
ctx.fillText(yaxislabel,0,0);\
ctx.restore();\
};\
ctx.stroke();\
ctx.closePath();\
if( use_axis == 1 ){\
ctx.beginPath();\
ctx.strokeStyle = stroke_color;\
ctx.lineWidth = 0.6*line_width;\
for(var p = zero_x ; p < xsize; p = p + x2step){\
ctx.moveTo(p,0);\
ctx.lineTo(p,ysize);\
};\
for(var p = zero_x ; p > 0; p = p - x2step){\
ctx.moveTo(p,0);\
ctx.lineTo(p,ysize);\
};\
for(var p = zero_y ; p < ysize; p = p + y2step){\
ctx.moveTo(0,p);\
ctx.lineTo(xsize,p);\
};\
for(var p = zero_y ; p > 0; p = p - y2step){\
ctx.moveTo(0,p);\
ctx.lineTo(xsize,p);\
};\
ctx.stroke();\
ctx.closePath();\
ctx.beginPath();\
ctx.lineWidth = 2*line_width;\
ctx.strokeStyle = axis_color;\
ctx.moveTo(0,zero_y);\
ctx.lineTo(xsize,zero_y);\
ctx.moveTo(zero_x,0);\
ctx.lineTo(zero_x,ysize);\
ctx.stroke();\
ctx.closePath();\
ctx.lineWidth = line_width+0.5;\
ctx.beginPath();\
for(var p = zero_x ; p < xsize; p = p + xstep){\
ctx.moveTo(p,zero_y-tics_length);\
ctx.lineTo(p,zero_y+tics_length);\
};\
for(var p = zero_x ; p > 0; p = p - xstep){\
ctx.moveTo(p,zero_y-tics_length);\
ctx.lineTo(p,zero_y+tics_length);\
};\
for(var p = zero_y ; p < ysize; p = p + ystep){\
ctx.moveTo(zero_x-tics_length,p);\
ctx.lineTo(zero_x+tics_length,p);\
};\
for(var p = zero_y ; p > 0; p = p - ystep){\
ctx.moveTo(zero_x-tics_length,p);\
ctx.lineTo(zero_x+tics_length,p);\
};\
for(var p = zero_x ; p < xsize; p = p + x2step){\
ctx.moveTo(p,zero_y-0.5*tics_length);\
ctx.lineTo(p,zero_y+0.5*tics_length);\
};\
for(var p = zero_x ; p > 0; p = p - x2step){\
ctx.moveTo(p,zero_y-0.5*tics_length);\
ctx.lineTo(p,zero_y+0.5*tics_length);\
};\
for(var p = zero_y ; p < ysize; p = p + y2step){\
ctx.moveTo(zero_x-0.5*tics_length,p);\
ctx.lineTo(zero_x+0.5*tics_length,p);\
};\
for(var p = zero_y ; p > 0; p = p - y2step){\
ctx.moveTo(zero_x-0.5*tics_length,p);\
ctx.lineTo(zero_x+0.5*tics_length,p);\
};\
ctx.stroke();\
ctx.closePath();\
if( use_axis_numbering == 1 ){\
var shift = zero_y+2*font_size;var flip=0;var skip=0;var corr;var cnt;var disp_cnt;var prec;\
if( x_strings != null ){\
var f = 1.4;\
var len = x_strings.length;if((len/2+0.5)%%2 == 0){ alert(\"xaxis number unpaired: text missing ! \");return;};\
for(var p = 0 ; p < len ; p = p+2){\
var x_nums = x2px(eval(x_strings[p]));\
var x_text = x_strings[p+1];\
corr = ctx.measureText(x_text).width;\
skip = 1.2*corr/xstep;\
if( zero_y+2*font_size > ysize ){shift = ysize - 2*font_size;};\
if( skip > 1 ){if(flip == 0 ){flip = 1; shift = shift + font_size;}else{flip = 0; shift = shift - font_size;}};\
ctx.fillText(x_text,parseInt(x_nums-0.5*corr),shift);\
}\
}\
else\
{\
corr=0;skip = 0;cnt = xmajor;\
prec = Math.log(precision)/(Math.log(10));\
for( var p = zero_x + xstep ; p < xsize ; p = p+xstep){\
if(skip == 0 ){\
disp_cnt = cnt.toFixed(prec);\
corr = ctx.measureText(disp_cnt).width;\
skip = parseInt(1.2*corr/xstep);\
ctx.fillText(disp_cnt,p-0.5*corr,zero_y+1.4*font_size);\
}\
else\
{\
skip--;\
};\
cnt = cnt + xmajor;\
};\
cnt = -1*xmajor;skip = 0;\
for( var p = zero_x - xstep ; p > 0 ; p = p-xstep){\
if(skip == 0 ){\
disp_cnt = cnt.toFixed(prec);\
corr = ctx.measureText(disp_cnt).width;\
skip = parseInt(1.2*corr/xstep);\
ctx.fillText(disp_cnt,p-0.5*corr,zero_y+1.4*font_size);\
}\
else\
{\
skip--;\
};\
cnt = cnt - xmajor;\
};\
};\
if( y_strings != null ){\
var len = y_strings.length;if((len/2+0.5)%%2 == 0){ alert(\"yaxis number unpaired: text missing ! \");return;};\
for(var p = 0 ; p < len ; p = p+2){\
var y_nums = y2px(eval(y_strings[p]));\
var y_text = y_strings[p+1];\
var f = 1.4;\
corr = 2 + tics_length + ctx.measureText(y_text).width;\
if( corr > zero_x){corr = parseInt(zero_x+2); }\
ctx.fillText(y_text,zero_x - corr,y_nums);\
};\
}\
else\
{\
corr = 0;cnt = -1*ymajor;skip = 0;\
for( var p = zero_y + ystep ; p < ysize ; p = p+ystep){\
if(skip == 0 ){\
skip = parseInt(1.4*font_size/ystep);\
disp_cnt = cnt.toFixed(prec);\
corr = 2 + tics_length + ctx.measureText(disp_cnt).width;\
ctx.fillText(disp_cnt,zero_x - corr,p+0.4*font_size);\
}\
else\
{\
skip--;\
};\
cnt = cnt - ymajor;\
}\
cnt = ymajor;skip = 0;\
for( var p = zero_y - ystep ; p > 0 ; p = p-ystep){\
if(skip == 0 ){\
skip = parseInt(1.4*font_size/ystep);\
disp_cnt = cnt.toFixed(prec);\
corr = 2 + tics_length + ctx.measureText(disp_cnt).width;\
ctx.fillText(disp_cnt,zero_x - corr,p+0.4*font_size);\
}\
else\
{\
skip--;\
};\
cnt = cnt + ymajor;\
}\
};\
};\
ctx.strokeStyle = stroke_color;\
ctx.lineWidth = 2;\
ctx.beginPath();\
ctx.rect(0,0,xsize,ysize);\
ctx.closePath();\
ctx.stroke();\
};\
if( typeof linegraph_0 !== 'undefined' ){\
ctx.restore();\
ctx.save();\
ctx.globalAlpha = 1.0;\
var i = 0;\
var line_name = eval('linegraph_'+i);\
while ( typeof line_name !== 'undefined' ){\
ctx.strokeStyle = 'rgba('+line_name[0]+','+stroke_opacity+')';\
ctx.lineWidth = parseInt(line_name[1]);\
if(line_name[2] == \"1\"){\
var d1 = parseInt(line_name[3]);\
var d2 = parseInt(line_name[4]);\
if(ctx.setLineDash){ ctx.setLineDash(d1,d2); } else { ctx.mozDash = [d1,d2];};\
}\
else\
{\
if(ctx.setLineDash){ctx.setLineDash = null;}\
if(ctx.mozDash){ctx.mozDash = null;}\
};\
var data_x = new Array();\
var data_y = new Array();\
var lb = line_name.length;\
var idx = 0;\
for( var p = 5 ; p < lb ; p = p + 2 ){\
data_x[idx] = x2px(line_name[p]);\
data_y[idx] = y2px(line_name[p+1]);\
idx++;\
};\
for( var p = 0; p < idx ; p++){\
ctx.beginPath();\
ctx.moveTo(data_x[p],data_y[p]);\
ctx.lineTo(data_x[p+1],data_y[p+1]);\
ctx.stroke();\
ctx.closePath();\
};\
i++;\
try{ line_name = eval('linegraph_'+i); }catch(e){ break; }\
};\
};\
var barcolor = new Array();\
if( typeof barchart%d !== 'undefined' ){\
ctx.restore();\
ctx.save();\
ctx.globalAlpha = 1.0;\
var bar_x = new Array();\
var bar_y = new Array();\
var lb = barchart%d.length;\
var idx = 0;\
for( var p = 0 ; p < lb ; p = p + 3 ){\
bar_x[idx] = x2px(barchart%d[p]);\
bar_y[idx] = y2px(barchart%d[p+1]);\
barcolor[idx] = barchart%d[p+2];\
idx++;\
};\
var dx = parseInt(0.6*xstep);\
ctx.globalAlpha = fill_opacity;\
for( var p = 0; p < idx ; p++ ){\
ctx.beginPath();\
ctx.strokeStyle = barcolor[p];\
ctx.fillStyle = barcolor[p];\
ctx.rect(bar_x[p]-0.5*dx,bar_y[p],dx,zero_y - bar_y[p]);\
ctx.fill();\
ctx.stroke();\
ctx.closePath();\
};\
};\
if( typeof legend%d !== 'undefined' ){\
ctx.globalAlpha = 1.0;\
ctx.font = \"bold \"+font_size+\"px Ariel\";\
var y_offset = 2*font_size;\
var txt;var txt_size;\
var x_offset = xsize - 2*font_size;\
var l_length = legend%d.length;\
if( typeof legendcolors%d !== 'undefined' ){\
for(var p = 0 ; p < l_length ; p++){\
barcolor[p] = legendcolors%d[p];\
};\
}else{\
if( barcolor.length == 0 ){\
for(var p = 0 ; p < l_length ; p++){\
barcolor[p] = stroke_color;\
};\
};\
};\
for(var p = 0; p < l_length; p++){\
ctx.fillStyle = barcolor[p];\
txt = legend%d[p];\
txt_size = ctx.measureText(txt).width;\
ctx.fillText(legend%d[p],x_offset - txt_size, y_offset);\
y_offset = parseInt(y_offset + 1.5*font_size);\
};\
};\
ctx.restore();\
return;\
};\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,canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
break;
case DRAW_PIECHART:
fprintf(js_include_file,"\n\n\
function draw_piechart(canvas_type,x_center,y_center,radius, data_color_list,fill_opacity,font_size,font_family){\
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);\
};\
var ld = data_color_list.length;\
var sum = 0;\
var idx = 0;\
var colors = new Array();\
var data = new Array();\
for(var p = 0;p < ld; p = p + 2){\
data[idx] = parseFloat(data_color_list[p]);\
sum = sum + data[idx];\
colors[idx] = data_color_list[p+1];\
idx++;\
};\
var ctx = obj.getContext(\"2d\");\
ctx.save();\
var angle;\
var angle_end = 0;\
var offset = Math.PI / 2;\
ctx.globalAlpha = fill_opacity;\
for(var p=0; p < idx; p++){\
ctx.beginPath();\
ctx.fillStyle = colors[p];\
ctx.moveTo(x_center,y_center);\
angle = Math.PI * (2 * data[p] / sum);\
ctx.arc(x_center,y_center, radius, angle_end - offset, angle_end + angle - offset, false);\
ctx.lineTo(x_center, y_center);\
ctx.fill();\
ctx.closePath();\
angle_end = angle_end + angle;\
};\
if( typeof legend%d !== 'undefined' ){\
ctx.globalAlpha = 1.0;\
ctx.font = font_size+\"px \"+font_family;\
var y_offset = font_size; \
var x_offset = 0;\
var txt;var txt_size;\
for(var p = 0; p < idx; p++){\
ctx.fillStyle = colors[p];\
txt = legend%d[p];\
txt_size = ctx.measureText(txt).width;\
if( x_center + radius + txt_size > xsize ){ x_offset = x_center + radius + txt_size - xsize;} else { x_offset = 0; };\
ctx.fillText(legend%d[p],x_center + radius - x_offset, y_center - radius + y_offset);\
y_offset = parseInt(y_offset + 1.5*font_size);\
};\
};\
ctx.restore();\
};\n",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
break;
case DRAW_ARCS:
fprintf(js_include_file,"\n\n\
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){\
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);\
};\
var ctx = obj.getContext(\"2d\");\
ctx.save();\
if( use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{if(ctx.mozDash){ ctx.mozDash = [dashtype0,dashtype1];};};};\
if( use_translate == 1 ){ctx.translate(vector[0],vector[1]);};\
if( use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);};\
if(end < start){var tmp = end;end = start;start=tmp;};\
start=360-start;\
end=360-end;\
ctx.lineWidth = line_width;\
ctx.strokeStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
if( use_filled == 1 ){\
ctx.beginPath();\
ctx.fillStyle = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";\
var x1 = xc + r*Math.cos(Math.PI*start/180);\
var y1 = yc + r*Math.sin(Math.PI*start/180);\
var x2 = xc + r*Math.cos(Math.PI*end/180);\
var y2 = yc + r*Math.sin(Math.PI*end/180);\
ctx.beginPath();\
ctx.moveTo(x1,y1);\
ctx.lineTo(xc,yc);\
ctx.moveTo(xc,yc);\
ctx.lineTo(x2,y2);\
ctx.closePath();\
ctx.arc(xc, yc, r, start*(Math.PI / 180), end*(Math.PI / 180),true);\
ctx.fill();\
ctx.stroke();\
}\
else\
{\
ctx.beginPath();\
ctx.arc(xc, yc, r, start*(Math.PI / 180), end*(Math.PI / 180),true);\
ctx.stroke();\
ctx.closePath();\
}\
ctx.restore();\
};\n",canvas_root_id,canvas_root_id,canvas_root_id);
break;
case DRAW_TEXTS:
fprintf(js_include_file,"\n\n\
draw_text = function(canvas_type,x,y,font_size,font_family,stroke_color,stroke_opacity,angle2,text,use_rotate,angle,use_translate,vector){\
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);\
};\
var ctx = obj.getContext(\"2d\");\
if(angle2 == 0 && angle != 0){\
ctx.save();\
if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
};\
if( font_family.indexOf('px') != null ){\
ctx.font = font_family;\
}\
else\
{\
ctx.font = \"+font_size+'px '+font_family \";\
};\
ctx.fillStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
if(angle2 != 0){\
ctx.save();\
ctx.translate(x,y);\
ctx.rotate((360-angle2)*(Math.PI / 180));\
ctx.fillText(text,0,0);\
ctx.restore();\
}else{ctx.fillText(text,x,y);};\
ctx.restore();\
return;\
};\n",canvas_root_id,canvas_root_id,canvas_root_id);
break;
case DRAW_CURVE:
fprintf(js_include_file,"\n\n\
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){\
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);\
};\
var ctx = obj.getContext(\"2d\");\
ctx.save();\
if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
ctx.beginPath();ctx.lineWidth = line_width;\
if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
ctx.strokeStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
ctx.moveTo(x2px(x_points[0]),y2px(y_points[0]));\
for(var p = 1 ; p < x_points.length ; p++){\
if( y2px(y_points[p]) > -5 && y2px(y_points[p]) < ysize+5 ){\
ctx.lineTo(x2px(x_points[p]),y2px(y_points[p]));\
}\
else\
{\
ctx.stroke();\
ctx.beginPath();\
p++;\
ctx.moveTo(x2px(x_points[p]),y2px(y_points[p]));\
};\
};\
ctx.stroke();\
ctx.restore();\
};\n",canvas_root_id,canvas_root_id,canvas_root_id);
break;
case DRAW_INPUTS:
fprintf(js_include_file,"\n\n\
draw_inputs = function(root_id,input_cnt,x,y,size,readonly,style,value){\
var canvas_div = document.getElementById(\"canvas_div\"+root_id);\
var input = document.createElement(\"input\");\
input.setAttribute(\"id\",\"canvas_input\"+input_cnt);\
input.setAttribute(\"style\",\"position:absolute;left:\"+x+\"px;top:\"+y+\"px;\"+style);\
input.setAttribute(\"size\",size);\
input.setAttribute(\"value\",value);\
if( readonly == 0 ){ input.setAttribute(\"readonly\",\"readonly\");};\
canvas_div.appendChild(input);\n};");
break;
case DRAW_TEXTAREAS:
fprintf(js_include_file,"\n\n\
draw_textareas = function(root_id,input_cnt,x,y,cols,rows,readonly,style,value){\
var canvas_div = document.getElementById(\"canvas_div\"+root_id);\
var textarea = document.createElement(\"textarea\");\
textarea.setAttribute(\"id\",\"canvas_input\"+input_cnt);\
textarea.setAttribute(\"style\",\"position:absolute;left:\"+x+\"px;top:\"+y+\"px;\"+style);\
textarea.setAttribute(\"cols\",cols);\
textarea.setAttribute(\"rows\",rows);\
textarea.innerHTML = value;\
canvas_div.appendChild(textarea);\n};");
break;
case DRAW_PIXELS:
fprintf(js_include_file,"\n\n\
draw_setpixel = function(x,y,color,opacity,pixelsize){\
var canvas = create_canvas%d(10,xsize,ysize);\
var d = 0.5*pixelsize;\
var ctx = canvas.getContext(\"2d\");\
ctx.fillStyle = \"rgba(\"+color+\",\"+opacity+\")\";\
ctx.clearRect(0,0,xsize,ysize);\
for(var p=0; p<x.length;p++){\
ctx.fillRect( x2px(x[p]) - d, y2px(y[p]) - d , pixelsize, pixelsize );\
};\
ctx.fill();ctx.stroke();\
};",canvas_root_id);
break;
case DRAW_CLOCK:
fprintf(js_include_file,"\n\n\
var clock_canvas = create_canvas%d(%d,xsize,ysize);\
var clock_ctx = clock_canvas.getContext(\"2d\");\
var clock = function(xc,yc,radius,H,M,S,type,interaction,h_color,m_color,s_color,bg_color,fg_color){\
clock_ctx.save();\
this.type = type || 0;\
this.interaction = interaction || 0;\
this.H = H || parseInt(110*(Math.random()));\
this.M = M || parseInt(590*(Math.random()));\
this.S = S || parseInt(590*(Math.random()));\
this.xc = xc || xsize/2;\
this.yc = yc || ysize/2;\
this.radius = radius || xsize/4;\
var font_size = parseInt(0.2*this.radius);\
this.H_color = h_color || \"blue\";\
this.M_color = m_color || \"blue\";\
this.S_color = s_color || \"blue\";\
this.fg_color = fg_color || \"red\";\
this.bg_color = bg_color || \"white\";\
clock_ctx.translate(this.xc,this.yc);\
clock_ctx.beginPath();\
clock_ctx.arc(0,0,this.radius,0,2*Math.PI,false);\
clock_ctx.fillStyle = this.bg_color;\
clock_ctx.fill();\
clock_ctx.closePath();\
clock_ctx.beginPath();\
clock_ctx.font = font_size+\"px Arial\";\
clock_ctx.fillStyle = this.fg_color;\
clock_ctx.textAlign = \"center\";\
clock_ctx.textBaseline = 'middle';\
var angle;var x1,y1,x2,y2;\
var angle_cos;var angle_sin;\
switch(type){\
case 0:clock_ctx.beginPath();\
for(var p = 1; p <= 12 ; p++){\
angle_cos = this.radius*(Math.cos(p * (Math.PI * 2) / 12));\
angle_sin = this.radius*(Math.sin(p * (Math.PI * 2) / 12));\
x1 = 0.8*angle_cos;y1 = 0.8*angle_sin;x2 = angle_cos;y2 = angle_sin;\
clock_ctx.moveTo(x1,y1);\
clock_ctx.lineTo(x2,y2);\
};\
for(var p = 1; p <= 60 ; p++){\
angle_cos = this.radius*(Math.cos(p * (Math.PI * 2) / 60));\
angle_sin = this.radius*(Math.sin(p * (Math.PI * 2) / 60));\
x1 = 0.9*angle_cos;y1 = 0.9*angle_sin;x2 = angle_cos;y2 = angle_sin;\
clock_ctx.moveTo(x1,y1);\
clock_ctx.lineTo(x2,y2);\
};\
clock_ctx.closePath();\
clock_ctx.stroke();\
break;\
case 1:\
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;\
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);};\
clock_ctx.beginPath();\
for(var p = 1; p <= 12 ; p++){\
angle_cos = this.radius*(Math.cos(p * (Math.PI * 2) / 12));\
angle_sin = this.radius*(Math.sin(p * (Math.PI * 2) / 12));\
x1 = 0.9*angle_cos;y1 = 0.9*angle_sin;x2 = angle_cos;y2 = angle_sin;\
clock_ctx.moveTo(x1,y1);\
clock_ctx.lineTo(x2,y2);\
};\
for(var p = 1; p <= 60 ; p++){\
angle_cos = this.radius*(Math.cos(p * (Math.PI * 2) / 60));\
angle_sin = this.radius*(Math.sin(p * (Math.PI * 2) / 60));\
x1 = 0.95*angle_cos;y1 = 0.95*angle_sin;x2 = angle_cos;y2 = angle_sin;\
clock_ctx.moveTo(x1,y1);\
clock_ctx.lineTo(x2,y2);\
};\
clock_ctx.closePath();\
clock_ctx.stroke();\
break;\
};\
angle = (this.H - 3 + this.M/60 ) * 2 * Math.PI / 12;\
clock_ctx.rotate(angle);\
clock_ctx.beginPath();\
clock_ctx.moveTo(-3, -2);\
clock_ctx.lineTo(-3, 2);\
clock_ctx.lineTo(this.radius * 0.7, 1);\
clock_ctx.lineTo(this.radius * 0.7, -1);\
clock_ctx.fillStyle = this.H_color;\
clock_ctx.fill();\
clock_ctx.rotate(-angle);\
angle = (this.M - 15 + this.S/60) * 2 * Math.PI / 60;\
clock_ctx.rotate(angle);\
clock_ctx.beginPath();\
clock_ctx.moveTo(-3, -2);\
clock_ctx.lineTo(-3, 2);\
clock_ctx.lineTo(this.radius * 0.8, 1);\
clock_ctx.lineTo(this.radius * 0.8, -1);\
clock_ctx.fillStyle = this.M_color;\
clock_ctx.fill();\
clock_ctx.rotate(-angle);\
angle = (this.S - 15) * 2 * Math.PI / 60;\
clock_ctx.rotate(angle);\
clock_ctx.beginPath();\
clock_ctx.moveTo(0,0);\
clock_ctx.lineTo(this.radius * 0.95, 0);\
clock_ctx.lineTo(this.radius * 0.9, -1);\
clock_ctx.strokeStyle = this.S_color;\
clock_ctx.stroke();\
clock_ctx.restore();\
};\
\n\n",canvas_root_id,CLOCK_CANVAS);
break;
case DRAW_LATTICE:
fprintf(js_include_file,"\n\n\
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){\
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);\
};\
var ctx = obj.getContext(\"2d\");\
ctx.save();\
if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
ctx.fillStyle =\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
var radius = line_width;\
var x = 0;\
var y = 0;\
var x_step_px = xsize/(xmax-xmin);\
var y_step_px = ysize/(ymax-ymin);\
var xv1 = dx1*x_step_px;\
var yv1 = dy1*y_step_px;\
var xv2 = dx2*x_step_px;\
var yv2 = dy2*y_step_px;\
for(var p = 0; p < n1 ;p++){\
x = p*xv1 + x0;\
y = p*yv1 + y0;\
for(var c = 0; c < n2 ; c++){\
ctx.beginPath();\
ctx.arc(x+c*xv2,y+c*yv2,radius,0,2*Math.PI,false);\
ctx.fill();\
ctx.stroke();\
ctx.closePath();\
};\
};\
ctx.restore();\
return;\
};\n",canvas_root_id,canvas_root_id,canvas_root_id);
break;
default:break;
}
}
}
return;
}
void check_string_length(int L){
if(L<1 || L > MAX_BUFFER-1){
canvas_error("problem with your arguments to command...");
}
return;
}
int get_token(FILE *infile){
int c,i=0;
char temp[MAX_INT], *input_type;
char *line="line",
*audio="audio",
*blink="blink",
*arrowhead="arrowhead",
*crosshairsize="crosshairsize",
*crosshair="crosshair",
*crosshairs="crosshairs",
*audioobject="audioobject",
*style="style",
*mouse="mouse",
*userdraw="userdraw",
*highlight="highlight",
*http="http",
*rays="rays",
*dashtype="dashtype",
*dashed="dashed",
*filled="filled",
*lattice="lattice",
*parallel="parallel",
*segment="segment",
*dsegment="dsegment",
*seg="seg",
*bgimage="bgimage",
*bgcolor="bgcolor",
*strokecolor="strokecolor",
*backgroundimage="backgroundimage",
*text="text",
*textup="textup",
*mouseprecision="mouseprecision",
*precision="precision",
*plotsteps="plotsteps",
*plotstep="plotstep",
*tsteps="tsteps",
*curve="curve",
*dcurve="dcurve",
*plot="plot",
*dplot="dplot",
*fontsize="fontsize",
*fontcolor="fontcolor",
*axis="axis",
*axisnumbering="axisnumbering",
*axisnumbers="axisnumbers",
*arrow="arrow",
*darrow="darrow",
*arrow2="arrow2",
*darrow2="darrow2",
*zoom="zoom",
*grid="grid",
*hline="hline",
*drag="drag",
*horizontalline="horizontalline",
*vline="vline",
*verticalline="verticalline",
*triangle="triangle",
*ftriangle="ftriangle",
*mathml="mathml",
*html="html",
*input="input",
*button="button",
*inputstyle="inputstyle",
*textarea="textarea",
*trange="trange",
*ranget="ranget",
*xrange="xrange",
*yrange="yrange",
*rangex="rangex",
*rangey="rangey",
*polyline="polyline",
*lines="lines",
*poly="poly",
*polygon="polygon",
*fpolygon="fpolygon",
*fpoly="fpoly",
*filledpoly="filledpoly",
*filledpolygon="filledpolygon",
*rect="rect",
*frect="frect",
*rectangle="rectangle",
*frectangle="frectangle",
*square="square",
*fsquare="fsquare",
*dline="dline",
*arc="arc",
*filledarc="filledarc",
*size="size",
*string="string",
*stringup="stringup",
*copy="copy",
*copyresized="copyresized",
*opacity="opacity",
*transparent="transparent",
*fill="fill",
*slider="slider",
*point="point",
*points="points",
*linewidth="linewidth",
*circle="circle",
*fcircle="fcircle",
*disk="disk",
*comment="#",
*end="end",
*ellipse="ellipse",
*fellipse="fellipse",
*rotate="rotate",
*fontfamily="fontfamily",
*fillcolor="fillcolor",
*clicktile="clicktile",
*clicktile_colors="clicktile_colors",
*translation="translation",
*translate="translate",
*killtranslation="killtranslation",
*killtranslate="killtranslate",
*onclick="onclick",
*roundrect="roundrect",
*froundrect="froundrect",
*roundrectangle="roundrectangle",
*patternfill="patternfill",
*hatchfill="hatchfill",
*diafill="diafill",
*dotfill="dotfill",
*gridfill="gridfill",
*imagefill="imagefill",
*logbase="logbase",
*xlogscale="xlogscale",
*ylogscale="ylogscale",
*xylogscale="xylogscale",
*intooltip="intooltip",
*replyformat="replyformat",
*floodfill="floodfill",
*filltoborder="filltoborder",
*clickfill="clickfill",
*debug="debug",
*setpixel="setpixel",
*pixels="pixels",
*pixelsize="pixelsize",
*clickfillmarge="clickfillmarge",
*xaxis="xaxis",
*yaxis="yaxis",
*xaxistext="xaxistext",
*yaxistext="yaxistext",
*piechart="piechart",
*legend="legend",
*legendcolors="legendcolors",
*xlabel="xlabel",
*ylabel="ylabel",
*barchart="barchart",
*linegraph="linegraph",
*clock="clock",
*animate="animate",
*video="video",
*status="status",
*snaptogrid="snaptogrid";
while(((c = getc(infile)) != EOF)&&(c!='\n')&&(c!=',')&&(c!='=')&&(c!='\r')){
if( i == 0 && (c == ' ' || c == '\t') ){
continue; /* white spaces or tabs allowed before first command identifier */
}
else
{
if( c == ' ' || c == '\t' ){
break;
}
else
{
temp[i] = c;
if(i > MAX_INT - 2){canvas_error("command string too long !");}
i++;
}
}
if(temp[0] == '#') break;
}
if (c == EOF) finished = 1;
if (c == '\n' || c == '\r') {
line_number++;
if (i == 0) { return EMPTY; }
} else if (c == EOF) {
return 0;
}
temp[i]='\0';
input_type=(char*)my_newmem(strlen(temp));
snprintf(input_type,sizeof(temp),"%s",temp);
if( strcmp(input_type, size) == 0 ){
free(input_type);
return SIZE;
}
if( strcmp(input_type, xrange) == 0 ){
free(input_type);
return XRANGE;
}
if( strcmp(input_type, rangex) == 0 ){
free(input_type);
return XRANGE;
}
if( strcmp(input_type, trange) == 0 ){
free(input_type);
return TRANGE;
}
if( strcmp(input_type, ranget) == 0 ){
free(input_type);
return TRANGE;
}
if( strcmp(input_type, yrange) == 0 ){
free(input_type);
return YRANGE;
}
if( strcmp(input_type, rangey) == 0 ){
free(input_type);
return YRANGE;
}
if( strcmp(input_type, linewidth) == 0 ){
free(input_type);
return LINEWIDTH;
}
if( strcmp(input_type, dashed) == 0 ){
free(input_type);
return DASHED;
}
if( strcmp(input_type, dashtype) == 0 ){
free(input_type);
return DASHTYPE;
}
if( strcmp(input_type, axisnumbering) == 0 ){
free(input_type);
return AXIS_NUMBERING;
}
if( strcmp(input_type, axisnumbers) == 0 ){
free(input_type);
return AXIS_NUMBERING;
}
if( strcmp(input_type, axis) == 0 ){
free(input_type);
return AXIS;
}
if( strcmp(input_type, grid) == 0 ){
free(input_type);
return GRID;
}
if( strcmp(input_type, parallel) == 0 ){
free(input_type);
return PARALLEL;
}
if( strcmp(input_type, hline) == 0 || strcmp(input_type, horizontalline) == 0 ){
free(input_type);
return HLINE;
}
if( strcmp(input_type, vline) == 0 || strcmp(input_type, verticalline) == 0 ){
free(input_type);
return VLINE;
}
if( strcmp(input_type, line) == 0 ){
free(input_type);
return LINE;
}
if( strcmp(input_type, seg) == 0 || strcmp(input_type, segment) == 0 ){
free(input_type);
return SEGMENT;
}
if( strcmp(input_type, dsegment) == 0 ){
free(input_type);
use_dashed = TRUE;
return SEGMENT;
}
if( strcmp(input_type, crosshairsize) == 0 ){
free(input_type);
return CROSSHAIRSIZE;
}
if( strcmp(input_type, arrowhead) == 0 ){
free(input_type);
return ARROWHEAD;
}
if( strcmp(input_type, crosshairs) == 0 ){
free(input_type);
return CROSSHAIRS;
}
if( strcmp(input_type, crosshair) == 0 ){
free(input_type);
return CROSSHAIR;
}
if( strcmp(input_type, onclick) == 0 ){
free(input_type);
return ONCLICK;
}
if( strcmp(input_type, drag) == 0 ){
free(input_type);
return DRAG;
}
if( strcmp(input_type, userdraw) == 0 ){
free(input_type);
return USERDRAW;
}
if( strcmp(input_type, highlight) == 0 || strcmp(input_type, style) == 0 ){
free(input_type);
return STYLE;
}
if( strcmp(input_type, fillcolor) == 0 ){
free(input_type);
return FILLCOLOR;
}
if( strcmp(input_type, strokecolor) == 0 ){
free(input_type);
return STROKECOLOR;
}
if( strcmp(input_type, filled) == 0 ){
free(input_type);
return FILLED;
}
if( strcmp(input_type, http) == 0 ){
free(input_type);
return HTTP;
}
if( strcmp(input_type, rays) == 0 ){
free(input_type);
return RAYS;
}
if( strcmp(input_type, lattice) == 0 ){
free(input_type);
return LATTICE;
}
if( strcmp(input_type, bgimage) == 0 ){
free(input_type);
return BGIMAGE;
}
if( strcmp(input_type, bgcolor) == 0 ){
free(input_type);
return BGCOLOR;
}
if( strcmp(input_type, backgroundimage) == 0 ){
free(input_type);
return BGIMAGE;
}
if( strcmp(input_type, text) == 0 ){
free(input_type);
return FLY_TEXT;
}
if( strcmp(input_type, textup) == 0 ){
free(input_type);
return FLY_TEXTUP;
}
if( strcmp(input_type, mouse) == 0 ){
free(input_type);
return MOUSE;
}
if( strcmp(input_type, mouseprecision) == 0 ){
free(input_type);
return MOUSE_PRECISION;
}
if( strcmp(input_type, precision) == 0 ){
free(input_type);
return MOUSE_PRECISION;
}
if( strcmp(input_type, curve) == 0 ){
free(input_type);
return CURVE;
}
if( strcmp(input_type, dcurve) == 0 ){
free(input_type);
return CURVE;
}
if( strcmp(input_type, plot) == 0 ){
free(input_type);
return CURVE;
}
if( strcmp(input_type, dplot) == 0 ){
free(input_type);
return CURVE;
}
if( strcmp(input_type, plotsteps) == 0 ){
free(input_type);
return PLOTSTEPS;
}
if( strcmp(input_type, plotstep) == 0 ){
free(input_type);
return PLOTSTEPS;
}
if( strcmp(input_type, tsteps) == 0 ){
free(input_type);
return PLOTSTEPS;
}
if( strcmp(input_type, fontsize) == 0 ){
free(input_type);
return FONTSIZE;
}
if( strcmp(input_type, fontcolor) == 0 ){
free(input_type);
return FONTCOLOR;
}
if( strcmp(input_type, arrow) == 0 ){
free(input_type);
return ARROW;
}
if( strcmp(input_type, arrow2) == 0 ){
free(input_type);
return ARROW2;
}
if( strcmp(input_type, darrow) == 0 ){
free(input_type);
return ARROW;
}
if( strcmp(input_type, darrow2) == 0 ){
free(input_type);
use_dashed = TRUE;
return ARROW2;
}
if( strcmp(input_type, zoom) == 0 ){
free(input_type);
return ZOOM;
}
if( strcmp(input_type, triangle) == 0 ){
free(input_type);
return TRIANGLE;
}
if( strcmp(input_type, ftriangle) == 0 ){
free(input_type);
use_filled = TRUE;
return TRIANGLE;
}
if( strcmp(input_type, input) == 0 ){
free(input_type);
return INPUT;
}
if( strcmp(input_type, inputstyle) == 0 ){
free(input_type);
return INPUTSTYLE;
}
if( strcmp(input_type, textarea) == 0 ){
free(input_type);
return TEXTAREA;
}
if( strcmp(input_type, mathml) == 0 ){
free(input_type);
return MATHML;
}
if( strcmp(input_type, html) == 0 ){
free(input_type);
return MATHML;
}
if( strcmp(input_type, fontfamily) == 0 ){
free(input_type);
return FONTFAMILY;
}
if( strcmp(input_type, lines) == 0 || strcmp(input_type, polyline) == 0 ){
free(input_type);
return POLYLINE;
}
if( strcmp(input_type, rect) == 0 || strcmp(input_type, rectangle) == 0 ){
free(input_type);
return RECT;
}
if( strcmp(input_type, roundrect) == 0 || strcmp(input_type, roundrectangle) == 0 ){
free(input_type);
return ROUNDRECT;
}
if( strcmp(input_type, froundrect) == 0 ){
free(input_type);
use_filled = TRUE;
return ROUNDRECT;
}
if( strcmp(input_type, square) == 0 ){
free(input_type);
return SQUARE;
}
if( strcmp(input_type, fsquare) == 0 ){
free(input_type);
use_filled = TRUE;
return SQUARE;
}
if( strcmp(input_type, dline) == 0 ){
use_dashed = TRUE;
free(input_type);
return LINE;
}
if( strcmp(input_type, frect) == 0 || strcmp(input_type, frectangle) == 0 ){
use_filled = TRUE;
free(input_type);
return RECT;
}
if( strcmp(input_type, fcircle) == 0 || strcmp(input_type, disk) == 0 ){
use_filled = TRUE;
free(input_type);
return CIRCLE;
}
if( strcmp(input_type, circle) == 0 ){
free(input_type);
return CIRCLE;
}
if( strcmp(input_type, point) == 0 ){
free(input_type);
return POINT;
}
if( strcmp(input_type, points) == 0 ){
free(input_type);
return POINTS;
}
if( strcmp(input_type, filledarc) == 0 ){
use_filled = TRUE;
free(input_type);
return ARC;
}
if( strcmp(input_type, arc) == 0 ){
free(input_type);
return ARC;
}
if( strcmp(input_type, poly) == 0 || strcmp(input_type, polygon) == 0 ){
free(input_type);
return POLY;
}
if( strcmp(input_type, fpoly) == 0 || strcmp(input_type, filledpoly) == 0 || strcmp(input_type,filledpolygon) == 0 || strcmp(input_type,fpolygon) == 0 ){
use_filled = TRUE;
free(input_type);
return POLY;
}
if( strcmp(input_type, ellipse) == 0){
free(input_type);
return ELLIPSE;
}
if( strcmp(input_type, fill) == 0 ){
free(input_type);
return FLOODFILL;
}
if( strcmp(input_type, string) == 0 ){
free(input_type);
return STRING;
}
if( strcmp(input_type, stringup) == 0 ){
free(input_type);
return STRINGUP;
}
if( strcmp(input_type, opacity) == 0 ){
free(input_type);
return OPACITY;
}
if( strcmp(input_type, comment) == 0){
free(input_type);
return COMMENT;
}
if( strcmp(input_type, end) == 0){
free(input_type);
return END;
}
if( strcmp(input_type, fellipse) == 0){
free(input_type);
use_filled = TRUE;
return ELLIPSE;
}
if( strcmp(input_type, blink) == 0 ){
free(input_type);
return BLINK;
}
if( strcmp(input_type, button) == 0){
free(input_type);
return BUTTON;
}
if( strcmp(input_type, translation) == 0 || strcmp(input_type, translate) == 0 ){
free(input_type);
return TRANSLATION;
}
if( strcmp(input_type, killtranslation) == 0 || strcmp(input_type, killtranslate) == 0){
free(input_type);
return KILLTRANSLATION;
}
if( strcmp(input_type, rotate) == 0){
free(input_type);
return ROTATE;
}
if( strcmp(input_type, audio) == 0 ){
free(input_type);
return AUDIO;
}
if( strcmp(input_type, audioobject) == 0 ){
free(input_type);
return AUDIOOBJECT;
}
if( strcmp(input_type, slider) == 0 ){
free(input_type);
return SLIDER;
}
if( strcmp(input_type, copy) == 0 ){
free(input_type);
return COPY;
}
if( strcmp(input_type, copyresized) == 0 ){
free(input_type);
return COPYRESIZED;
}
if( strcmp(input_type, patternfill) == 0 ){
free(input_type);
return PATTERNFILL;
}
if( strcmp(input_type, hatchfill) == 0 ){
free(input_type);
return HATCHFILL;
}
if( strcmp(input_type, diafill) == 0 ){
free(input_type);
return DIAFILL;
}
if( strcmp(input_type, dotfill) == 0 ){
free(input_type);
return DOTFILL;
}
if( strcmp(input_type, gridfill) == 0 ){
free(input_type);
return GRIDFILL;
}
if( strcmp(input_type, imagefill) == 0 ){
free(input_type);
return IMAGEFILL;
}
if( strcmp(input_type, clicktile_colors) == 0 ){
free(input_type);
return CLICKTILE_COLORS;
}
if( strcmp(input_type, clicktile) == 0 ){
free(input_type);
return CLICKTILE;
}
if( strcmp(input_type, xlogscale) == 0 ){
free(input_type);
return XLOGSCALE;
}
if( strcmp(input_type, ylogscale) == 0 ){
free(input_type);
return YLOGSCALE;
}
if( strcmp(input_type, xylogscale) == 0 ){
free(input_type);
return XYLOGSCALE;
}
if( strcmp(input_type, ylogscale) == 0 ){
free(input_type);
return YLOGSCALE;
}
if( strcmp(input_type, logbase) == 0 ){
free(input_type);
return LOGBASE;
}
if( strcmp(input_type, intooltip) == 0 ){
free(input_type);
return INTOOLTIP;
}
if( strcmp(input_type,video) == 0 ){
free(input_type);
return VIDEO;
}
if( strcmp(input_type,floodfill) == 0 || strcmp(input_type,fill) == 0 ){
free(input_type);
return FLOODFILL;
}
if( strcmp(input_type,filltoborder) == 0 ){
free(input_type);
return FILLTOBORDER;
}
if( strcmp(input_type,clickfill) == 0 ){
free(input_type);
return CLICKFILL;
}
if( strcmp(input_type, replyformat) == 0 ){
free(input_type);
return REPLYFORMAT;
}
if( strcmp(input_type, debug) == 0 ){
free(input_type);
return DEBUG;
}
if( strcmp(input_type, pixelsize) == 0 ){
free(input_type);
return PIXELSIZE;
}
if( strcmp(input_type, setpixel) == 0 ){
free(input_type);
return SETPIXEL;
}
if( strcmp(input_type, pixels) == 0 ){
free(input_type);
return PIXELS;
}
if( strcmp(input_type, clickfillmarge) == 0 ){
free(input_type);
return CLICKFILLMARGE;
}
if( strcmp(input_type, xaxis) == 0 || strcmp(input_type, xaxistext) == 0 ){
free(input_type);
return X_AXIS_STRINGS;
}
if( strcmp(input_type, yaxis) == 0 || strcmp(input_type, yaxistext) == 0 ){
free(input_type);
return Y_AXIS_STRINGS;
}
if( strcmp(input_type, piechart) == 0 ){
free(input_type);
return PIECHART;
}
if( strcmp(input_type, barchart) == 0 ){
free(input_type);
return BARCHART;
}
if( strcmp(input_type, linegraph) == 0 ){
free(input_type);
return LINEGRAPH;
}
if( strcmp(input_type, clock) == 0 ){
free(input_type);
return CLOCK;
}
if( strcmp(input_type, legend) == 0 ){
free(input_type);
return LEGEND;
}
if( strcmp(input_type, legendcolors) == 0 ){
free(input_type);
return LEGENDCOLORS;
}
if( strcmp(input_type, xlabel) == 0 ){
free(input_type);
return XLABEL;
}
if( strcmp(input_type, ylabel) == 0 ){
free(input_type);
return YLABEL;
}
if( strcmp(input_type, animate) == 0 ){
free(input_type);
return ANIMATE;
}
/* these are bitmap related flydraw commmands...must be removed. eventually */
if( strcmp(input_type, transparent) == 0 ){
free(input_type);
return TRANSPARENT;
}
if( strcmp(input_type, status) == 0 ){
free(input_type);
return STATUS;
}
if( strcmp(input_type, snaptogrid) == 0 ){
free(input_type);
return SNAPTOGRID;
}
free(input_type);
ungetc(c,infile);
return 0;
}

Subversion Repositories wimsdev

(root)/trunk/wims/src/Misc/canvasdraw/canvasdraw.c – Rev 7614