MVirtualScreen.h

/**********************************************************************

Copyright (c) 2005, TomTom B.V.

All rights reserved


***********************************************************************/


#ifndef __MVIRTUALSCREEN_H__
#define __MVIRTUALSCREEN_H__

#include <assert.h>
#include <string.h>

#include "MFrameBuffer.h"

class MVirtualScreen;

class MVirtualScreen: public MFrameBuffer  
{
 public: // Events
  class MVirtualScreenEvents
  {
   public:
    struct TVirtualScreenRefreshData
    {
     TVirtualScreenRefreshData( MVirtualScreen& aSource,
                                MFrameBuffer&   aFrameBuffer,
                                bool            aFrameBufferUpdated ):
      iSource( aSource ),
      iFrameBuffer( aFrameBuffer ),
      iFrameBufferUpdated( aFrameBufferUpdated )
      {}

     MVirtualScreen& iSource;             
     MFrameBuffer&   iFrameBuffer;        
     bool            iFrameBufferUpdated; 
    };

   public:
    virtual ~MVirtualScreenEvents() {};

    virtual void FiredScreenRefreshEvent( TVirtualScreenRefreshData& aData ) = 0;
  };

 public:
     MVirtualScreen():
       MFrameBuffer(),
       iEvents( NULL )
       {}

  virtual void  FlushVirtualBuffer( bool aOnlyIfActive = true ) = 0;

  virtual void  FlushFrameBuffer( bool aOnlyIfActive = true )   = 0;

  virtual char* GetFrameBuffer()                                                                = 0;

 public:      
  MVirtualScreenEvents* iEvents; 
 public:
  static MVirtualScreen& GetVirtualScreen();
};

#endif // __IVIRTUALSCREEN_H__

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