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

 break;
 case DRAW_SUBSUP:
 fprintf(js_include_file,"\n/* draw sub sup imitation in canvas */\
 function draw_subsup(ctx,x,y,txt){\
- var C;var c;var len = txt.length;var w = x;var baseline;var space = 0;\
+ var C;var c;var len = txt.length;var baseline = 'middle';var space = 0;\
  ctx.save();var subsup=0;\
+ var org_font = ctx.font;var s = 0.8*(parseInt(ctx.font)) || 10;\
- ctx.textBaseline = 'middle';\
+ ctx.textBaseline = baseline;\
- for( c = 0 ; c<len ;c++){\
+ for( c = 0 ; c < len ;c++){\
   C = txt.charAt(c);space = 0;\
-  if(C == '_'){subsup = 1;c++;space = 3;baseline='top';C = txt.charAt(c);};\
+  if(C == '_'){ctx.font = s+'px Arial';subsup = 1;c++;space = 3;baseline='top';C = txt.charAt(c);};\
-  if(C == '^'){subsup = 1;c++;space = 3;baseline='bottom';C = txt.charAt(c);};\
+  if(C == '^'){ctx.font = s+'px Arial';subsup = 1;c++;space = 3;baseline='bottom';C = txt.charAt(c);};\
-  if(C == ' '){if(subsup == 1){space = 8 - (ctx.measureText('M').width);subsup = 0;};baseline = 'middle';};\
+  if(C == ' '){ctx.font = org_font ;if(subsup == 1){space = 0.6*s - (ctx.measureText('M').width);subsup = 0;};baseline = 'middle';};\
   ctx.textBaseline = baseline;\
-  ctx.fillText(C,w,y);\
+  ctx.fillText(C,x,y);\
-  ctx.stroke();\
-  w = space + w + ctx.measureText(C).width;\
+  x = space + x + ctx.measureText(C).width;\
  };\
+ ctx.stroke();\
  ctx.restore();\
  return;\
 };");
 break;

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