third_party/WebKit/ManualTests/canvas-font-speed-switching.html

   1 <!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN">
   2 <html>
   3 <head>
   4 <title>Canvas 2d Context Font Property Speed</title>
   5 </head>
   6 <body>
   7   <canvas id='thecanvas' height=100 width=100/>
   8   <script>
   9     var canvas = document.getElementById('thecanvas');
  10     var context = canvas.getContext('2d');
  11     var t0 = Date.now();
  12     for (var i = 0; i < 1000; i++) {
  13       if(i % 2 == 0)
  14         context.font = 'bold 13px Arial';
  15       else
  16         context.font = 'italic 13px Arial';
  17     }
  18     alert('Elapsed for 1000 font switches: ' + (Date.now() - t0));
  19   </script>
  20 </body>
  21 </html>