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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef UI_GFX_ANDROID_DEVICE_DISPLAY_INFO_H_
#define UI_GFX_ANDROID_DEVICE_DISPLAY_INFO_H_
#include <jni.h>
#include <string>
#include "base/basictypes.h"
#include "ui/gfx/gfx_export.h"
namespace gfx {
// Facilitates access to device information typically only
// available using the Android SDK, including Display properties.
class GFX_EXPORT DeviceDisplayInfo {
public:
DeviceDisplayInfo();
~DeviceDisplayInfo();
// Returns display height in physical pixels.
int GetDisplayHeight();
// Returns display width in physical pixels.
int GetDisplayWidth();
// Returns real display height in physical pixels.
// This version does not subtract window decorations etc.
// WARNING: This is only supported on JB-MR1 (sdk >= 17). Either
// check the SDK-level, or check for '0' being returned.
int GetPhysicalDisplayHeight();
// Returns real display width in physical pixels.
// This version does not subtract window decorations etc.
// WARNING: This is only supported on JB-MR1 (sdk >= 17). Either
// check the SDK-level, or check for '0' being returned.
int GetPhysicalDisplayWidth();
// Returns number of bits per pixel.
int GetBitsPerPixel();
// Returns number of bits per component.
int GetBitsPerComponent();
// Returns a scaling factor for Density Independent Pixel unit
// (1.0 is 160dpi, 0.75 is 120dpi, 2.0 is 320dpi).
double GetDIPScale();
// Smallest possible screen size in density-independent pixels.
int GetSmallestDIPWidth();
// Returns the display rotation angle from its natural orientation. Expected
// values are one of { 0, 90, 180, 270 }.
// See DeviceDispayInfo.java for more information.
int GetRotationDegrees();
private:
DISALLOW_COPY_AND_ASSIGN(DeviceDisplayInfo);
};
} // namespace gfx
#endif // UI_GFX_ANDROID_DEVICE_DISPLAY_INFO_H_
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