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| 1 <!DOCTYPE html> | 1 <!DOCTYPE html> |
| 2 <!-- | 2 <!-- |
| 3 Copyright (c) 2013 The Chromium Authors. All rights reserved. | 3 Copyright (c) 2013 The Chromium Authors. All rights reserved. |
| 4 Use of this source code is governed by a BSD-style license that can be | 4 Use of this source code is governed by a BSD-style license that can be |
| 5 found in the LICENSE file. | 5 found in the LICENSE file. |
| 6 --> | 6 --> |
| 7 | 7 |
| 8 <link rel="import" href="/tracing/base/utils.html"> | 8 <link rel="import" href="/tracing/base/utils.html"> |
| 9 | 9 |
| 10 <script> | 10 <script> |
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| 50 eq &= Math.abs(this.panY - that.panY) < 0.001; | 50 eq &= Math.abs(this.panY - that.panY) < 0.001; |
| 51 eq &= Math.abs(this.scaleX - that.scaleX) < 0.001; | 51 eq &= Math.abs(this.scaleX - that.scaleX) < 0.001; |
| 52 return !!eq; | 52 return !!eq; |
| 53 }, | 53 }, |
| 54 | 54 |
| 55 incrementPanXInViewUnits: function(xDeltaView) { | 55 incrementPanXInViewUnits: function(xDeltaView) { |
| 56 this.panX += this.xViewVectorToWorld(xDeltaView); | 56 this.panX += this.xViewVectorToWorld(xDeltaView); |
| 57 }, | 57 }, |
| 58 | 58 |
| 59 xPanWorldPosToViewPos: function(worldX, viewX, viewWidth) { | 59 xPanWorldPosToViewPos: function(worldX, viewX, viewWidth) { |
| 60 if (typeof viewX == 'string') { | 60 if (typeof viewX === 'string') { |
| 61 if (viewX === 'left') { | 61 if (viewX === 'left') { |
| 62 viewX = 0; | 62 viewX = 0; |
| 63 } else if (viewX === 'center') { | 63 } else if (viewX === 'center') { |
| 64 viewX = viewWidth / 2; | 64 viewX = viewWidth / 2; |
| 65 } else if (viewX === 'right') { | 65 } else if (viewX === 'right') { |
| 66 viewX = viewWidth - 1; | 66 viewX = viewWidth - 1; |
| 67 } else { | 67 } else { |
| 68 throw new Error('viewX must be left|center|right or number.'); | 68 throw new Error('viewX must be left|center|right or number.'); |
| 69 } | 69 } |
| 70 } | 70 } |
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| 109 applyTransformToCanvas: function(ctx) { | 109 applyTransformToCanvas: function(ctx) { |
| 110 ctx.transform(this.scaleX, 0, 0, 1, this.panX * this.scaleX, 0); | 110 ctx.transform(this.scaleX, 0, 0, 1, this.panX * this.scaleX, 0); |
| 111 } | 111 } |
| 112 }; | 112 }; |
| 113 | 113 |
| 114 return { | 114 return { |
| 115 TimelineDisplayTransform: TimelineDisplayTransform | 115 TimelineDisplayTransform: TimelineDisplayTransform |
| 116 }; | 116 }; |
| 117 }); | 117 }); |
| 118 </script> | 118 </script> |
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