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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 | |
3 // found in the LICENSE file. | |
4 | |
5 #ifndef UI_GFX_ANDROID_DEVICE_INFO_H_ | |
6 #define UI_GFX_ANDROID_DEVICE_INFO_H_ | |
7 | |
8 #include <jni.h> | |
9 #include <string> | |
10 | |
11 #include "base/android/scoped_java_ref.h" | |
12 #include "base/basictypes.h" | |
13 #include "ui/base/ui_export.h" | |
14 | |
15 namespace gfx { | |
16 | |
17 // Facilitates access to device information typically only | |
18 // available using the Android SDK, including Display properties. | |
19 class UI_EXPORT DeviceInfo { | |
20 public: | |
21 DeviceInfo(); | |
22 ~DeviceInfo(); | |
23 | |
24 // Returns display height in physical pixels. | |
25 int GetDisplayHeight(); | |
26 | |
27 // Returns display width in physical pixels. | |
28 int GetDisplayWidth(); | |
29 | |
30 // Returns number of bits per pixel. | |
31 int GetBitsPerPixel(); | |
32 | |
33 // Returns number of bits per component. | |
34 int GetBitsPerComponent(); | |
35 | |
36 // Returns a scaling factor for Density Independent Pixel unit | |
37 // (1.0 is 160dpi, 0.75 is 120dpi, 2.0 is 320dpi). | |
38 double GetDIPScale(); | |
39 | |
40 // Returns display refresh rate in number of frames per second. | |
41 double GetRefreshRate(); | |
42 | |
43 // Returns the ISO country code equivalent of the current MCC. | |
44 std::string GetNetworkCountryIso(); | |
jamesr
2013/01/17 06:18:07
wait - what's this have to do with graphics?
aruslan
2013/01/17 23:01:10
Moved the method out and renamed the classes to av
| |
45 | |
46 // Registers methods with JNI and returns true if succeeded. | |
47 static bool RegisterDeviceInfo(JNIEnv* env); | |
48 | |
49 private: | |
50 base::android::ScopedJavaGlobalRef<jobject> j_device_info_; | |
51 | |
52 DISALLOW_COPY_AND_ASSIGN(DeviceInfo); | |
53 }; | |
54 | |
55 } // namespace gfx | |
56 | |
57 #endif // UI_GFX_ANDROID_DEVICE_INFO_H_ | |
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