OLD | NEW |
1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 #import('dart:html'); | 5 #import('dart:html'); |
6 #import('dart:math', prefix: 'Math'); | 6 #import('dart:math', prefix: 'Math'); |
7 | 7 |
8 class Color { | 8 class Color { |
9 int hue; | 9 int hue; |
10 double saturation; | 10 double saturation; |
(...skipping 52 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
63 digit = code - 97 + 10; | 63 digit = code - 97 + 10; |
64 } else { | 64 } else { |
65 throw "Invalid hex string: '$hex'"; | 65 throw "Invalid hex string: '$hex'"; |
66 } | 66 } |
67 number *= 16; // shift previous digits left one place | 67 number *= 16; // shift previous digits left one place |
68 number += digit; | 68 number += digit; |
69 } | 69 } |
70 return number; | 70 return number; |
71 } | 71 } |
72 | 72 |
73 String get hex() { | 73 String get hex { |
74 final h = (hue % 360) / 360; | 74 final h = (hue % 360) / 360; |
75 final s = saturation; | 75 final s = saturation; |
76 final l = lightness; | 76 final l = lightness; |
77 | 77 |
78 // HSL to RGB algorithm from the CSS spec | 78 // HSL to RGB algorithm from the CSS spec |
79 // http://www.w3.org/TR/css3-color/#hsl-color | 79 // http://www.w3.org/TR/css3-color/#hsl-color |
80 final m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; | 80 final m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; |
81 final m1 = l * 2 - m2; | 81 final m1 = l * 2 - m2; |
82 final r = _hueToRgb(m1, m2, h + 1/3); | 82 final r = _hueToRgb(m1, m2, h + 1/3); |
83 final g = _hueToRgb(m1, m2, h); | 83 final g = _hueToRgb(m1, m2, h); |
(...skipping 105 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
189 | 189 |
190 document.query("input[name=invert]").on.change.add((Event e) { | 190 document.query("input[name=invert]").on.change.add((Event e) { |
191 InputElement invert = e.target; | 191 InputElement invert = e.target; |
192 if (invert.checked) { | 192 if (invert.checked) { |
193 logo.classes = ['inverse']; | 193 logo.classes = ['inverse']; |
194 } else { | 194 } else { |
195 logo.classes = []; | 195 logo.classes = []; |
196 } | 196 } |
197 }); | 197 }); |
198 } | 198 } |
OLD | NEW |