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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_DISPLAY_H_ | 5 #ifndef UI_GFX_DISPLAY_H_ |
6 #define UI_GFX_DISPLAY_H_ | 6 #define UI_GFX_DISPLAY_H_ |
7 | 7 |
8 #include "base/basictypes.h" | 8 #include "base/basictypes.h" |
9 #include "base/compiler_specific.h" | 9 #include "base/compiler_specific.h" |
10 #include "ui/base/ui_export.h" | 10 #include "ui/base/ui_export.h" |
11 #include "ui/gfx/rect.h" | 11 #include "ui/gfx/rect.h" |
12 | 12 |
13 namespace gfx { | 13 namespace gfx { |
14 | 14 |
15 // Note: The screen and display currently uses pixel coordinate | 15 // Note: The screen and display currently uses pixel coordinate |
16 // system. For platforms that support DIP (density independent pixel), | 16 // system. For platforms that support DIP (density independent pixel), |
17 // |bounds()| and |work_area| will return values in DIP coordinate | 17 // |bounds()| and |work_area| will return values in DIP coordinate |
18 // system, not in backing pixels. | 18 // system, not in backing pixels. |
19 class UI_EXPORT Display { | 19 class UI_EXPORT Display { |
20 public: | 20 public: |
21 // Creates a display with kInvalidDisplayID as default. | 21 // Creates a display with kInvalidDisplayID as default. |
22 Display(); | 22 Display(); |
23 explicit Display(int64 id); | 23 explicit Display(int64 id); |
24 Display(int64 id, const Rect& bounds); | 24 Display(int64 id, const Rect& bounds); |
25 ~Display(); | 25 ~Display(); |
26 | 26 |
27 // Returns the forced device scale factor, which is given by | 27 // Returns the forced device scale factor, which is given by |
28 // "--force-device-scale-factor". | 28 // "--force-device-scale-factor". |
29 static float GetForcedDeviceScaleFactor(); | 29 static float GetForcedDeviceScaleFactor(); |
30 static bool HasForceDeviceScaleFactor(); | |
pkotwicz
2013/01/23 19:39:23
Add a comment for HasForceDeviceScaleFactor().
kevers
2013/01/23 21:37:00
Done.
| |
30 | 31 |
31 // Returns 64-bit persistent ID for the specified manufacturer's ID and | 32 // Returns 64-bit persistent ID for the specified manufacturer's ID and |
32 // serial#. | 33 // serial#. |
33 static int64 GetID(uint16 manufacturer_id, uint32 serial_number); | 34 static int64 GetID(uint16 manufacturer_id, uint32 serial_number); |
34 | 35 |
35 // Sets/Gets unique identifier associated with the display. | 36 // Sets/Gets unique identifier associated with the display. |
36 // -1 means invalid display and it doesn't not exit. | 37 // -1 means invalid display and it doesn't not exit. |
37 int64 id() const { return id_; } | 38 int64 id() const { return id_; } |
38 void set_id(int64 id) { id_ = id; } | 39 void set_id(int64 id) { id_ = id; } |
39 | 40 |
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98 Rect work_area_; | 99 Rect work_area_; |
99 #if defined(USE_AURA) | 100 #if defined(USE_AURA) |
100 Rect bounds_in_pixel_; | 101 Rect bounds_in_pixel_; |
101 #endif | 102 #endif |
102 float device_scale_factor_; | 103 float device_scale_factor_; |
103 }; | 104 }; |
104 | 105 |
105 } // namespace gfx | 106 } // namespace gfx |
106 | 107 |
107 #endif // UI_GFX_DISPLAY_H_ | 108 #endif // UI_GFX_DISPLAY_H_ |
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