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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( | |
pkotwicz
2013/01/23 19:39:23
Nit: Add TODO to use gfx::ToNearestRect().
kevers
2013/01/23 21:37:00
Based on description of method, ToNearestRect migh
| |
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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