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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/dpi_win.h" | 5 #include "ui/gfx/win/dpi.h" |
6 | 6 |
7 #include <windows.h> | 7 #include <windows.h> |
8 #include "base/command_line.h" | 8 #include "base/command_line.h" |
9 #include "base/win/scoped_hdc.h" | 9 #include "base/win/scoped_hdc.h" |
10 #include "base/win/windows_version.h" | 10 #include "base/win/windows_version.h" |
11 #include "ui/base/layout.h" | 11 #include "ui/base/layout.h" |
12 #include "base/win/registry.h" | 12 #include "base/win/registry.h" |
13 #include "ui/gfx/display.h" | 13 #include "ui/gfx/display.h" |
14 #include "ui/gfx/switches.h" | 14 #include "ui/gfx/switches.h" |
15 #include "ui/gfx/point_conversions.h" | 15 #include "ui/gfx/point_conversions.h" |
16 #include "ui/gfx/rect_conversions.h" | 16 #include "ui/gfx/rect_conversions.h" |
17 #include "ui/gfx/size_conversions.h" | 17 #include "ui/gfx/size_conversions.h" |
18 | 18 |
19 namespace { | 19 namespace { |
20 | 20 |
21 int kDefaultDPIX = 96; | 21 int kDefaultDPIX = 96; |
22 int kDefaultDPIY = 96; | 22 int kDefaultDPIY = 96; |
23 | 23 |
24 // Tests to see if the command line flag "--high-dpi-support" is set. | 24 // Tests to see if the command line flag "--high-dpi-support" is set. |
25 bool IsHighDPIEnabled() { | 25 bool IsHighDPIEnabled() { |
26 // Default is disabled. | 26 // Default is disabled. |
27 if (CommandLine::ForCurrentProcess()->HasSwitch( | 27 if (CommandLine::ForCurrentProcess()->HasSwitch( |
28 gfx::switches::kHighDPISupport)) { | 28 switches::kHighDPISupport)) { |
29 return CommandLine::ForCurrentProcess()->GetSwitchValueASCII( | 29 return CommandLine::ForCurrentProcess()->GetSwitchValueASCII( |
30 gfx::switches::kHighDPISupport).compare("1") == 0; | 30 switches::kHighDPISupport).compare("1") == 0; |
31 } | 31 } |
32 return false; | 32 return false; |
33 } | 33 } |
34 | 34 |
35 // Gets the device scale factor. If support is enabled, this will return the | 35 // Gets the device scale factor. If support is enabled, this will return the |
36 // best available scale based on the screen's pixel density. This can be | 36 // best available scale based on the screen's pixel density. This can be |
37 // affected (overridden) by --force-device-scale-factor=x | 37 // affected (overridden) by --force-device-scale-factor=x |
38 float GetDeviceScaleFactorImpl() { | 38 float GetDeviceScaleFactorImpl() { |
39 if (IsHighDPIEnabled()) { | 39 if (IsHighDPIEnabled()) { |
40 float scale = gfx::Display::HasForceDeviceScaleFactor() ? | 40 float scale = gfx::Display::HasForceDeviceScaleFactor() ? |
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166 double GetUndocumentedDPITouchScale() { | 166 double GetUndocumentedDPITouchScale() { |
167 static double scale = | 167 static double scale = |
168 (base::win::GetVersion() < base::win::VERSION_WIN8_1) ? | 168 (base::win::GetVersion() < base::win::VERSION_WIN8_1) ? |
169 GetUndocumentedDPIScale() : 1.0; | 169 GetUndocumentedDPIScale() : 1.0; |
170 return scale; | 170 return scale; |
171 } | 171 } |
172 | 172 |
173 | 173 |
174 } // namespace win | 174 } // namespace win |
175 } // namespace gfx | 175 } // namespace gfx |
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