examples/Graphics/WS/Direct/CDirectDisplayLife.h

/*
Copyright (c) 2005-2010 Nokia Corporation and/or its subsidiary(-ies). All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:

* Redistributions of source code must retain the above copyright notice, this
  list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright notice,
  this list of conditions and the following disclaimer in the documentation
  and/or other materials provided with the distribution.
* Neither the name of Nokia Corporation nor the names of its contributors
  may be used to endorse or promote products derived from this software
  without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Description:  
*/


#if !defined(__DIRECT_H__)
#define __DIRECT_H__

#include <w32std.h>

#include "CLifeEngine.h"

// Displays a running Game of Life using DSA API
class CDirectDisplayLife : 
        public CTimer,                          
        public MDirectScreenAccess      // Call backs from DSA
        {
public:
        // Construction & destruction
        CDirectDisplayLife (RWsSession& aClient, 
                RWindow& aWindow, 
                CLifeEngine& aLifeEngine);
        ~CDirectDisplayLife ();
        void ConstructL();

        // Start game display
        void StartL();
        
        // Implement MDirectScreenAccess
        void Restart(RDirectScreenAccess::TTerminationReasons aReason);
        void AbortNow(RDirectScreenAccess::TTerminationReasons aReason);

private:
        // Implement CTimer
        void RunL();
        void DoCancel();

private:
        // Window server handling
        RWsSession& iClient;
        RWindow& iWindow;

        // DSA objects
        CDirectScreenAccess* iDirectScreenAccess;
        CFbsBitGc* iGc;
        RRegion* iRegion;

        // Drawing constants
        static const TInt KBlockSize;
        static const TInt KGenerationInterval;
        static const TInt iXOrigin;
        static const TInt iYOrigin;

        // Life game engine
        CLifeEngine& iLifeEngine;
        };

#endif //__DIRECT_H__

---