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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 #ifndef UI_BASE_LAYOUT_H_ | 5 #ifndef UI_BASE_LAYOUT_H_ |
6 #define UI_BASE_LAYOUT_H_ | 6 #define UI_BASE_LAYOUT_H_ |
7 | 7 |
8 #include <vector> | 8 #include <vector> |
9 | 9 |
10 #include "build/build_config.h" | 10 #include "build/build_config.h" |
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25 LAYOUT_TOUCH, | 25 LAYOUT_TOUCH, |
26 }; | 26 }; |
27 | 27 |
28 // Returns the display layout that should be used. This could be used | 28 // Returns the display layout that should be used. This could be used |
29 // e.g. to tweak hard-coded padding that's layout specific, or choose | 29 // e.g. to tweak hard-coded padding that's layout specific, or choose |
30 // the .pak file of theme resources to load. | 30 // the .pak file of theme resources to load. |
31 UI_EXPORT DisplayLayout GetDisplayLayout(); | 31 UI_EXPORT DisplayLayout GetDisplayLayout(); |
32 | 32 |
33 // Supported UI scale factors for the platform. This is used as an index | 33 // Supported UI scale factors for the platform. This is used as an index |
34 // into the array |kScaleFactorScales| which maps the enum value to a float. | 34 // into the array |kScaleFactorScales| which maps the enum value to a float. |
| 35 // SCALE_FACTOR_NONE is used for density independent resources such as |
| 36 // string, html/js files or an image that can be used for any scales |
| 37 // (such as wallpapers). |
35 enum ScaleFactor { | 38 enum ScaleFactor { |
36 SCALE_FACTOR_100P = 0, | 39 SCALE_FACTOR_NONE = 0, |
| 40 SCALE_FACTOR_100P, |
37 | 41 |
38 // The scale factor used for unscaled binary data, the 1x (default) scale | 42 // The scale factor used for unscaled binary data, the 1x (default) scale |
39 // factor data packs. | 43 // factor data packs. |
40 SCALE_FACTOR_NONE = SCALE_FACTOR_100P, | |
41 SCALE_FACTOR_140P, | 44 SCALE_FACTOR_140P, |
42 SCALE_FACTOR_180P, | 45 SCALE_FACTOR_180P, |
43 SCALE_FACTOR_200P, | 46 SCALE_FACTOR_200P, |
44 | 47 |
45 NUM_SCALE_FACTORS // This always appears last. | 48 NUM_SCALE_FACTORS // This always appears last. |
46 }; | 49 }; |
47 | 50 |
48 // Returns the float scale value for |scale_factor|. | 51 // Returns the float scale value for |scale_factor|. |
49 UI_EXPORT float GetScaleFactorScale(ScaleFactor scale_factor); | 52 UI_EXPORT float GetScaleFactorScale(ScaleFactor scale_factor); |
50 | 53 |
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69 namespace test { | 72 namespace test { |
70 | 73 |
71 UI_EXPORT void SetSupportedScaleFactors( | 74 UI_EXPORT void SetSupportedScaleFactors( |
72 const std::vector<ScaleFactor>& scale_factors); | 75 const std::vector<ScaleFactor>& scale_factors); |
73 | 76 |
74 } // namespace test | 77 } // namespace test |
75 | 78 |
76 } // namespace ui | 79 } // namespace ui |
77 | 80 |
78 #endif // UI_BASE_LAYOUT_H_ | 81 #endif // UI_BASE_LAYOUT_H_ |
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