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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_GFX_DPI_WIN_H_ | 5 #ifndef UI_GFX_DPI_WIN_H_ |
6 #define UI_GFX_DPI_WIN_H_ | 6 #define UI_GFX_DPI_WIN_H_ |
7 | 7 |
8 #include "ui/gfx/gfx_export.h" | 8 #include "ui/gfx/gfx_export.h" |
9 #include "ui/gfx/point.h" | 9 #include "ui/gfx/point.h" |
10 #include "ui/gfx/rect.h" | 10 #include "ui/gfx/rect.h" |
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30 // unscaled or "not running on win8+" | 30 // unscaled or "not running on win8+" |
31 GFX_EXPORT float GetModernUIScale(); | 31 GFX_EXPORT float GetModernUIScale(); |
32 | 32 |
33 // Tests to see if the command line flag "--high-dpi-support" is set. | 33 // Tests to see if the command line flag "--high-dpi-support" is set. |
34 GFX_EXPORT bool IsHighDPIEnabled(); | 34 GFX_EXPORT bool IsHighDPIEnabled(); |
35 | 35 |
36 GFX_EXPORT bool IsInHighDPIMode(); | 36 GFX_EXPORT bool IsInHighDPIMode(); |
37 | 37 |
38 GFX_EXPORT void EnableHighDPISupport(); | 38 GFX_EXPORT void EnableHighDPISupport(); |
39 | 39 |
| 40 GFX_EXPORT void ForceHighDPISupportForTesting(float scale); |
| 41 |
40 // TODO(kevers|girard): Move above methods into win namespace. | 42 // TODO(kevers|girard): Move above methods into win namespace. |
41 | 43 |
42 namespace win { | 44 namespace win { |
43 | 45 |
44 GFX_EXPORT float GetDeviceScaleFactor(); | 46 GFX_EXPORT float GetDeviceScaleFactor(); |
45 | 47 |
46 GFX_EXPORT Point ScreenToDIPPoint(const Point& pixel_point); | 48 GFX_EXPORT Point ScreenToDIPPoint(const Point& pixel_point); |
47 | 49 |
48 GFX_EXPORT Point DIPToScreenPoint(const Point& dip_point); | 50 GFX_EXPORT Point DIPToScreenPoint(const Point& dip_point); |
49 | 51 |
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69 | 71 |
70 // Win7 and Win8 send touch events scaled according to the current DPI | 72 // Win7 and Win8 send touch events scaled according to the current DPI |
71 // scaling. Win8.1 corrects this, and sends touch events in DPI units. | 73 // scaling. Win8.1 corrects this, and sends touch events in DPI units. |
72 // This function returns the appropriate scaling factor for touch events. | 74 // This function returns the appropriate scaling factor for touch events. |
73 GFX_EXPORT double GetUndocumentedDPITouchScale(); | 75 GFX_EXPORT double GetUndocumentedDPITouchScale(); |
74 | 76 |
75 } // namespace win | 77 } // namespace win |
76 } // namespace gfx | 78 } // namespace gfx |
77 | 79 |
78 #endif // UI_GFX_DPI_WIN_H_ | 80 #endif // UI_GFX_DPI_WIN_H_ |
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