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| 1 // Copyright (c) 2015 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2015 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 /** | 4 /** |
| 5 * @unrestricted | 5 * @unrestricted |
| 6 */ | 6 */ |
| 7 UI.BezierUI = class { | 7 InlineEditor.BezierUI = class { |
| 8 /** | 8 /** |
| 9 * @param {number} width | 9 * @param {number} width |
| 10 * @param {number} height | 10 * @param {number} height |
| 11 * @param {number} marginTop | 11 * @param {number} marginTop |
| 12 * @param {number} controlPointRadius | 12 * @param {number} controlPointRadius |
| 13 * @param {boolean} linearLine | 13 * @param {boolean} linearLine |
| 14 */ | 14 */ |
| 15 constructor(width, height, marginTop, controlPointRadius, linearLine) { | 15 constructor(width, height, marginTop, controlPointRadius, linearLine) { |
| 16 this.width = width; | 16 this.width = width; |
| 17 this.height = height; | 17 this.height = height; |
| 18 this.marginTop = marginTop; | 18 this.marginTop = marginTop; |
| 19 this.radius = controlPointRadius; | 19 this.radius = controlPointRadius; |
| 20 this.linearLine = linearLine; | 20 this.linearLine = linearLine; |
| 21 } | 21 } |
| 22 | 22 |
| 23 /** | 23 /** |
| 24 * @param {!Common.Geometry.CubicBezier} bezier | 24 * @param {!Common.Geometry.CubicBezier} bezier |
| 25 * @param {!Element} path | 25 * @param {!Element} path |
| 26 * @param {number} width | 26 * @param {number} width |
| 27 */ | 27 */ |
| 28 static drawVelocityChart(bezier, path, width) { | 28 static drawVelocityChart(bezier, path, width) { |
| 29 var height = UI.BezierUI.Height; | 29 var height = InlineEditor.BezierUI.Height; |
| 30 var pathBuilder = ['M', 0, height]; | 30 var pathBuilder = ['M', 0, height]; |
| 31 /** @const */ var sampleSize = 1 / 40; | 31 /** @const */ var sampleSize = 1 / 40; |
| 32 | 32 |
| 33 var prev = bezier.evaluateAt(0); | 33 var prev = bezier.evaluateAt(0); |
| 34 for (var t = sampleSize; t < 1 + sampleSize; t += sampleSize) { | 34 for (var t = sampleSize; t < 1 + sampleSize; t += sampleSize) { |
| 35 var current = bezier.evaluateAt(t); | 35 var current = bezier.evaluateAt(t); |
| 36 var slope = (current.y - prev.y) / (current.x - prev.x); | 36 var slope = (current.y - prev.y) / (current.x - prev.x); |
| 37 var weightedX = prev.x * (1 - t) + current.x * t; | 37 var weightedX = prev.x * (1 - t) + current.x * t; |
| 38 slope = Math.tanh(slope / 1.5); // Normalise slope | 38 slope = Math.tanh(slope / 1.5); // Normalise slope |
| 39 pathBuilder = pathBuilder.concat(['L', (weightedX * width).toFixed(2), (he
ight - slope * height).toFixed(2)]); | 39 pathBuilder = pathBuilder.concat(['L', (weightedX * width).toFixed(2), (he
ight - slope * height).toFixed(2)]); |
| (...skipping 78 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 118 curve.setAttribute( | 118 curve.setAttribute( |
| 119 'd', 'M' + this.radius + ',' + (height + this.radius + this.marginTop) +
' C' + curvePoints.join(' ')); | 119 'd', 'M' + this.radius + ',' + (height + this.radius + this.marginTop) +
' C' + curvePoints.join(' ')); |
| 120 | 120 |
| 121 this._drawControlPoints( | 121 this._drawControlPoints( |
| 122 group, 0, height, bezier.controlPoints[0].x * width, (1 - bezier.control
Points[0].y) * height); | 122 group, 0, height, bezier.controlPoints[0].x * width, (1 - bezier.control
Points[0].y) * height); |
| 123 this._drawControlPoints( | 123 this._drawControlPoints( |
| 124 group, width, 0, bezier.controlPoints[1].x * width, (1 - bezier.controlP
oints[1].y) * height); | 124 group, width, 0, bezier.controlPoints[1].x * width, (1 - bezier.controlP
oints[1].y) * height); |
| 125 } | 125 } |
| 126 }; | 126 }; |
| 127 | 127 |
| 128 UI.BezierUI.Height = 26; | 128 InlineEditor.BezierUI.Height = 26; |
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