axmol/cocos/platform/CCDevice.h

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Copyright (c) 2010-2012 cocos2d-x.org
Copyright (c) 2013-2015 Chukong Technologies Inc.

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#ifndef __CCDEVICE_H__
#define __CCDEVICE_H__

#include "platform/CCPlatformMacros.h"
#include "base/ccMacros.h"
#include "base/CCData.h"

NS_CC_BEGIN

struct FontDefinition;

/**
 * @addtogroup platform
 * @{
 */

/**
 * @class Device
 * @brief 
 */
class CC_DLL Device
{
public:
    /** Defines the alignment of text. */
    enum class TextAlign
    {
        CENTER        = 0x33, /** Horizontal center and vertical center. */
        TOP           = 0x13, /** Horizontal center and vertical top. */
        TOP_RIGHT     = 0x12, /** Horizontal right and vertical top. */
        RIGHT         = 0x32, /** Horizontal right and vertical center. */
        BOTTOM_RIGHT  = 0x22, /** Horizontal right and vertical bottom. */
        BOTTOM        = 0x23, /** Horizontal center and vertical bottom. */
        BOTTOM_LEFT   = 0x21, /** Horizontal left and vertical bottom. */
        LEFT          = 0x31, /** Horizontal left and vertical center. */
        TOP_LEFT      = 0x11, /** Horizontal left and vertical top. */
    };

    /**
     *  Gets the DPI of device
     *  @return The DPI of device.
     */
    static int getDPI();
    
    /**
     * To enable or disable accelerometer.
     */
    static void setAccelerometerEnabled(bool isEnabled);

    /**
     *  Sets the interval of accelerometer.
     */
    static void setAccelerometerInterval(float interval);

    /**
     * Controls whether the screen should remain on.
     * 
     * @param keepScreenOn One flag indicating that the screen should remain on.
     */
    static void setKeepScreenOn(bool keepScreenOn);

    /**
     * Vibrate for the specified amount of time.
     * If vibrate is not supported, then invoking this method has no effect.
     * Some platforms limit to a maximum duration of 5 seconds.
     * Duration is ignored on iOS due to API limitations.
     * @param duration The duration in seconds.
     */
    static void vibrate(float duration);

    /**
     * Gets texture data for text.
     */
    static Data getTextureDataForText(const char * text, const FontDefinition& textDefinition, TextAlign align, int &width, int &height, bool& hasPremultipliedAlpha);

private:
    CC_DISALLOW_IMPLICIT_CONSTRUCTORS(Device);
};

// end group
/// @}

NS_CC_END

#endif /* __CCDEVICE_H__ */