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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 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 #include "ui/gfx/color_utils.h" | 5 #include "ui/gfx/color_utils.h" |
6 | 6 |
7 #include <math.h> | 7 #include <math.h> |
8 #if defined(OS_WIN) | 8 #include <stdint.h> |
9 #include <windows.h> | |
10 #endif | |
11 | 9 |
12 #include <algorithm> | 10 #include <algorithm> |
13 | 11 |
14 #include "base/basictypes.h" | |
15 #include "base/logging.h" | 12 #include "base/logging.h" |
16 #include "base/numerics/safe_conversions.h" | 13 #include "base/numerics/safe_conversions.h" |
17 #include "build/build_config.h" | 14 #include "build/build_config.h" |
18 #if defined(OS_WIN) | |
19 #include "skia/ext/skia_utils_win.h" | |
20 #endif | |
21 #include "third_party/skia/include/core/SkBitmap.h" | 15 #include "third_party/skia/include/core/SkBitmap.h" |
22 #include "ui/gfx/color_palette.h" | 16 #include "ui/gfx/color_palette.h" |
23 | 17 |
| 18 #if defined(OS_WIN) |
| 19 #include <windows.h> |
| 20 #include "skia/ext/skia_utils_win.h" |
| 21 #endif |
| 22 |
24 namespace color_utils { | 23 namespace color_utils { |
25 | 24 |
26 | 25 |
27 // Helper functions ----------------------------------------------------------- | 26 // Helper functions ----------------------------------------------------------- |
28 | 27 |
29 namespace { | 28 namespace { |
30 | 29 |
31 int calcHue(double temp1, double temp2, double hue) { | 30 int calcHue(double temp1, double temp2, double hue) { |
32 if (hue < 0.0) | 31 if (hue < 0.0) |
33 ++hue; | 32 ++hue; |
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128 } | 127 } |
129 | 128 |
130 SkColor HSLToSkColor(const HSL& hsl, SkAlpha alpha) { | 129 SkColor HSLToSkColor(const HSL& hsl, SkAlpha alpha) { |
131 double hue = hsl.h; | 130 double hue = hsl.h; |
132 double saturation = hsl.s; | 131 double saturation = hsl.s; |
133 double lightness = hsl.l; | 132 double lightness = hsl.l; |
134 | 133 |
135 // If there's no color, we don't care about hue and can do everything based on | 134 // If there's no color, we don't care about hue and can do everything based on |
136 // brightness. | 135 // brightness. |
137 if (!saturation) { | 136 if (!saturation) { |
138 uint8 light; | 137 uint8_t light; |
139 | 138 |
140 if (lightness < 0) | 139 if (lightness < 0) |
141 light = 0; | 140 light = 0; |
142 else if (lightness >= 1.0) | 141 else if (lightness >= 1.0) |
143 light = 255; | 142 light = 255; |
144 else | 143 else |
145 light = static_cast<uint8>(SkDoubleToFixed(lightness) >> 8); | 144 light = static_cast<uint8_t>(SkDoubleToFixed(lightness) >> 8); |
146 | 145 |
147 return SkColorSetARGB(alpha, light, light, light); | 146 return SkColorSetARGB(alpha, light, light, light); |
148 } | 147 } |
149 | 148 |
150 double temp2 = (lightness < 0.5) ? | 149 double temp2 = (lightness < 0.5) ? |
151 (lightness * (1.0 + saturation)) : | 150 (lightness * (1.0 + saturation)) : |
152 (lightness + saturation - (lightness * saturation)); | 151 (lightness + saturation - (lightness * saturation)); |
153 double temp1 = 2.0 * lightness - temp2; | 152 double temp1 = 2.0 * lightness - temp2; |
154 return SkColorSetARGB(alpha, | 153 return SkColorSetARGB(alpha, |
155 calcHue(temp1, temp2, hue + 1.0 / 3.0), | 154 calcHue(temp1, temp2, hue + 1.0 / 3.0), |
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338 if (IsDark(text_color)) { | 337 if (IsDark(text_color)) { |
339 // For black text, this comes out to kChromeIconGrey. | 338 // For black text, this comes out to kChromeIconGrey. |
340 return color_utils::AlphaBlend(SK_ColorWHITE, text_color, | 339 return color_utils::AlphaBlend(SK_ColorWHITE, text_color, |
341 SkColorGetR(gfx::kChromeIconGrey)); | 340 SkColorGetR(gfx::kChromeIconGrey)); |
342 } | 341 } |
343 // The dimming is less dramatic when darkening a light color. | 342 // The dimming is less dramatic when darkening a light color. |
344 return color_utils::AlphaBlend(SK_ColorBLACK, text_color, 0x33); | 343 return color_utils::AlphaBlend(SK_ColorBLACK, text_color, 0x33); |
345 } | 344 } |
346 | 345 |
347 } // namespace color_utils | 346 } // namespace color_utils |
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