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| (Empty) | |
| 1 <!DOCTYPE html> |
| 2 <html> |
| 3 <head> |
| 4 <style> |
| 5 #test { |
| 6 margin: 5px; |
| 7 } |
| 8 #test.composite > .container { |
| 9 -webkit-transform: translateZ(0); |
| 10 opacity: 0.95; |
| 11 } |
| 12 .container { |
| 13 position: absolute; |
| 14 } |
| 15 .shifter { |
| 16 position: absolute; |
| 17 background-color: black; |
| 18 width: 12.5px; |
| 19 height: 12.5px; |
| 20 } |
| 21 </style> |
| 22 </head> |
| 23 <body> |
| 24 <div id=test class=composite> |
| 25 </div> |
| 26 <script> |
| 27 function setupGrid(leftOffset, topOffset, leftFraction, topFraction, multipl
ier) |
| 28 { |
| 29 var test = document.getElementById('test'); |
| 30 for (var i = 0; i < 10; i++) { |
| 31 if (i == 5) |
| 32 topOffset += 5; |
| 33 var leftOffsetj = leftOffset; |
| 34 for (var j = 0; j < 10; j++) { |
| 35 if (j == 5) |
| 36 leftOffsetj += 5; |
| 37 var container = document.createElement("div"); |
| 38 var shifter = document.createElement("div"); |
| 39 container.setAttribute('class', 'container'); |
| 40 shifter.setAttribute('class', 'shifter'); |
| 41 container.style.left = (leftOffsetj + j * multiplier + i * leftF
raction) + "px" |
| 42 container.style.top = (topOffset + i * multiplier + i * topFract
ion) + "px" |
| 43 shifter.style.left = (5 + j * leftFraction) + "px" |
| 44 shifter.style.top = (5 + j * topFraction) + "px" |
| 45 container.appendChild(shifter); |
| 46 test.appendChild(container); |
| 47 } |
| 48 } |
| 49 } |
| 50 |
| 51 function setupTest() |
| 52 { |
| 53 // Vertical shifts: |
| 54 setupGrid(10, 10, 0, 0.1, 16) |
| 55 // Horizontal shifts: |
| 56 setupGrid(300, 10, 0.1, 0, 16); |
| 57 |
| 58 // And in 8x8 (where exactly 0.5 is more common) |
| 59 setupGrid(10, 200, 0, 0.125, 20); |
| 60 setupGrid(300, 200, 0.125, 0, 20); |
| 61 } |
| 62 |
| 63 setupTest(); |
| 64 </script> |
| 65 </body> |
| 66 </html> |
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Chromium Code Reviews
Issue 20723003:
Fix pixel snapping issues when layers become composited (Closed)
Base URL: svn://svn.chromium.org/blink/trunk