cameratimer.h

来自「series60 应用程序开发的源代码 series60 应用程序开发的源代码」· C头文件 代码 · 共 59 行

#ifndef __CAMERATIMER_H__
#define __CAMERATIMER_H__

// INCLUDES

// System Includes
#include <e32base.h>

// FORWARD DECLARATIONS
class MCameraTimerObserver;


// Constants
const TInt KDefaultDelay = 200000;
const TInt KFilmReelSpeed = 2 * KDefaultDelay; // record the film reel at slower speed than preview

// CLASS DECLARATION

/**
*
* @class    CCameraTimer CameraTimer.h 
* @brief    This is an active object derived from CTimer
*            that calls the observer function after a fixed
*            delay.
*
* Copyright (c) EMCC Software Ltd 2003
* @version    1.0
* 
*/

class CCameraTimer : public CTimer
  {
public:// Constructors and destructor

    static CCameraTimer* NewL(MCameraTimerObserver& aTimerObserver);
    static CCameraTimer* NewLC(MCameraTimerObserver& aTimerObserver);
    ~CCameraTimer();

private:// constructors
    CCameraTimer(MCameraTimerObserver& aTimerObserver);
    void ConstructL();

public: // new methods
    void StartTimer();
    void SetDelay(TInt aTimerInterval);

public: // from CTimer
    void DoCancel();
    void RunL();
    TInt RunError(TInt aError);

private: // data 
    TInt iTimerInterval;
    MCameraTimerObserver& iTimerObserver;
};

#endif // __CAMERATIMER_H__