| <!doctype html> |
| <style> |
| svg { |
| display: none; |
| } |
| canvas { |
| border: 1px solid black; |
| } |
| </style> |
| |
| <svg id="s1" width="200px" height="20px"> |
| <image id="img1" href="resources/pattern.png" x="0" y="0" width="20px" height="20px" /> |
| <image id="img2" href="resources/pattern.png" x="20" y="0" width="40px" height="40px" /> |
| <image id="img3" href="resources/pattern.png" x="40" y="0" width="40px" height="40px" /> |
| <image id="img4" href="invalid" x="60" y="0" width="20px" height="20px" /> |
| <image id="img5" href="resources/pattern.png" x="80" y="0" width="20px" height="20px" /> |
| </svg> |
| |
| <canvas id="c1" width="20" height="20"></canvas> |
| <canvas id="c2" width="20" height="20"></canvas> |
| <canvas id="c3" width="20" height="20"></canvas> |
| <canvas id="c4" width="20" height="20"></canvas> |
| <canvas id="c5" width="20" height="20"></canvas> |
| <canvas id="c6" width="20" height="20"></canvas> |
| |
| <script> |
| var draw = function(target, img, x, y, opts) { |
| document.getElementById(img).addEventListener("load", function() { |
| createImageBitmap(this, opts).then((ib) => { |
| document.getElementById(target).getContext("2d").drawImage( |
| ib, x || 0, y || 0); |
| }); |
| }); |
| } |
| |
| draw("c1", "img1"); |
| draw("c2", "img2", 10, 10); |
| draw("c3", "img3"); |
| draw("c4", "img4"); |
| document.getElementById("c5").getContext("2d").drawImage( |
| document.getElementById("img5"), 0, 0); |
| draw("c6", "img2", 0, 0, {resizeWidth: 10, resizeHeight: 10}); |
| |
| </script> |
