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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/base/win/dpi.h" | 5 #include "ui/base/win/dpi.h" |
6 | 6 |
7 #include <windows.h> | 7 #include <windows.h> |
8 | 8 |
9 #include "base/win/scoped_hdc.h" | 9 #include "base/win/scoped_hdc.h" |
| 10 #include "ui/gfx/display.h" |
| 11 #include "ui/gfx/point_conversions.h" |
| 12 #include "ui/gfx/rect_conversions.h" |
| 13 #include "ui/gfx/size_conversions.h" |
10 | 14 |
11 namespace { | 15 namespace { |
12 | 16 |
13 int kDefaultDPIX = 96; | 17 int kDefaultDPIX = 96; |
14 int kDefaultDPIY = 96; | 18 int kDefaultDPIY = 96; |
15 | 19 |
| 20 |
| 21 float GetDeviceScaleFactorImpl() { |
| 22 #if defined(ENABLE_HIDPI) |
| 23 return gfx::Display::GetForcedDeviceScaleFactor(); |
| 24 #else |
| 25 return 1.0f; |
| 26 #endif |
| 27 } |
| 28 |
16 } // namespace | 29 } // namespace |
17 | 30 |
18 namespace ui { | 31 namespace ui { |
19 | 32 |
20 gfx::Size GetDPI() { | 33 gfx::Size GetDPI() { |
21 static int dpi_x = 0; | 34 static int dpi_x = 0; |
22 static int dpi_y = 0; | 35 static int dpi_y = 0; |
23 static bool should_initialize = true; | 36 static bool should_initialize = true; |
24 | 37 |
25 if (should_initialize) { | 38 if (should_initialize) { |
(...skipping 19 matching lines...) Expand all Loading... |
45 } | 58 } |
46 | 59 |
47 void EnableHighDPISupport() { | 60 void EnableHighDPISupport() { |
48 typedef BOOL(WINAPI *SetProcessDPIAwarePtr)(VOID); | 61 typedef BOOL(WINAPI *SetProcessDPIAwarePtr)(VOID); |
49 SetProcessDPIAwarePtr set_process_dpi_aware_func = | 62 SetProcessDPIAwarePtr set_process_dpi_aware_func = |
50 GetProcAddress(GetModuleHandleA("user32.dll"), "SetProcessDPIAware"); | 63 GetProcAddress(GetModuleHandleA("user32.dll"), "SetProcessDPIAware"); |
51 if (set_process_dpi_aware_func) | 64 if (set_process_dpi_aware_func) |
52 set_process_dpi_aware_func(); | 65 set_process_dpi_aware_func(); |
53 } | 66 } |
54 | 67 |
| 68 namespace win { |
| 69 |
| 70 gfx::Point ScreenToDIPPoint(const gfx::Point& pixel_point) { |
| 71 return gfx::ToFlooredPoint( |
| 72 gfx::ScalePoint(pixel_point, 1.0f / GetDeviceScaleFactorImpl())); |
| 73 } |
| 74 |
| 75 gfx::Rect ScreenToDIPRect(const gfx::Rect& pixel_bounds) { |
| 76 return gfx::ToFlooredRectDeprecated( |
| 77 gfx::ScaleRect(pixel_bounds, 1.0f / GetDeviceScaleFactorImpl())); |
| 78 } |
| 79 |
| 80 gfx::Rect DIPToScreenRect(const gfx::Rect& dip_bounds) { |
| 81 return gfx::ToFlooredRectDeprecated( |
| 82 gfx::ScaleRect(dip_bounds, GetDeviceScaleFactorImpl())); |
| 83 } |
| 84 |
| 85 gfx::Size ScreenToDIPSize(const gfx::Size& size_in_pixels) { |
| 86 return gfx::ToFlooredSize( |
| 87 gfx::ScaleSize(size_in_pixels, 1.0f / GetDeviceScaleFactorImpl())); |
| 88 } |
| 89 |
| 90 gfx::Size DIPToScreenSize(const gfx::Size& dip_size) { |
| 91 return gfx::ToFlooredSize( |
| 92 gfx::ScaleSize(dip_size, GetDeviceScaleFactorImpl())); |
| 93 } |
| 94 |
| 95 } // namespace win |
| 96 |
55 } // namespace ui | 97 } // namespace ui |
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