| OLD | NEW |
| 1 // Copyright 2012 The Chromium Authors. All rights reserved. | 1 // Copyright 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/display/win/dpi.h" | 5 #include "ui/display/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" | 10 #include "ui/display/display.h" |
| 11 | 11 |
| 12 namespace display { | 12 namespace display { |
| 13 namespace win { | 13 namespace win { |
| 14 | 14 |
| 15 namespace { | 15 namespace { |
| 16 | 16 |
| 17 const float kDefaultDPI = 96.f; | 17 const float kDefaultDPI = 96.f; |
| 18 | 18 |
| 19 float g_device_scale_factor = 0.f; | 19 float g_device_scale_factor = 0.f; |
| 20 | 20 |
| (...skipping 21 matching lines...) Expand all Loading... |
| 42 } | 42 } |
| 43 | 43 |
| 44 } // namespace | 44 } // namespace |
| 45 | 45 |
| 46 void SetDefaultDeviceScaleFactor(float scale) { | 46 void SetDefaultDeviceScaleFactor(float scale) { |
| 47 DCHECK_NE(0.f, scale); | 47 DCHECK_NE(0.f, scale); |
| 48 g_device_scale_factor = scale; | 48 g_device_scale_factor = scale; |
| 49 } | 49 } |
| 50 | 50 |
| 51 float GetDPIScale() { | 51 float GetDPIScale() { |
| 52 if (gfx::Display::HasForceDeviceScaleFactor()) | 52 if (display::Display::HasForceDeviceScaleFactor()) |
| 53 return gfx::Display::GetForcedDeviceScaleFactor(); | 53 return display::Display::GetForcedDeviceScaleFactor(); |
| 54 float dpi_scale = GetUnforcedDeviceScaleFactor(); | 54 float dpi_scale = GetUnforcedDeviceScaleFactor(); |
| 55 return (dpi_scale <= 1.25f) ? 1.f : dpi_scale; | 55 return (dpi_scale <= 1.25f) ? 1.f : dpi_scale; |
| 56 } | 56 } |
| 57 | 57 |
| 58 int GetDPIFromScalingFactor(float device_scaling_factor) { | 58 int GetDPIFromScalingFactor(float device_scaling_factor) { |
| 59 return kDefaultDPI * device_scaling_factor; | 59 return kDefaultDPI * device_scaling_factor; |
| 60 } | 60 } |
| 61 | 61 |
| 62 int GetSystemMetricsInDIP(int metric) { | 62 int GetSystemMetricsInDIP(int metric) { |
| 63 // The system metrics always reflect the system DPI, not whatever scale we've | 63 // The system metrics always reflect the system DPI, not whatever scale we've |
| 64 // forced or decided to use. | 64 // forced or decided to use. |
| 65 return static_cast<int>( | 65 return static_cast<int>( |
| 66 std::round(GetSystemMetrics(metric) / GetUnforcedDeviceScaleFactor())); | 66 std::round(GetSystemMetrics(metric) / GetUnforcedDeviceScaleFactor())); |
| 67 } | 67 } |
| 68 | 68 |
| 69 } // namespace win | 69 } // namespace win |
| 70 } // namespace display | 70 } // namespace display |
| OLD | NEW |