updateao.h

一款大砖块的游戏

/*
* ============================================================================
*  Name     : CUpdateAO from UpdateAO.h
*  Part of  : Mopoid
*  Created  : 16.01.2004 by Andreas Jakl / Mopius - http://www.mopius.com/
*  Description:
*     Regularly updates the game view (if the game is active).
*  Version  : 1.02
*  Copyright: 
*     'Mopoid' is free software; you can redistribute
*     it and/or modify it under the terms of the GNU General Public License
*     as published by the Free Software Foundation; either version 2 of
*     the License, or (at your option) any later version.
* 
*     'Mopoid' is distributed in the hope that it
*     will be useful, but WITHOUT ANY WARRANTY; without even the implied
*     warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*     See the GNU General Public License for more details.
* 
*     You should have received a copy of the GNU General Public License
*     along with 'Mopoid'; if not, write to the Free Software
*     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
* ============================================================================
*/

#ifndef _UPDATEAO_H_
#define _UPDATEAO_H_

#include <e32base.h>

// Interface Classes
class MUpdateAOCallback
{
public:
	virtual TBool RepeatedAction(void) = 0;
	virtual void CancelAsyncs(void) = 0;
};


class CUpdateAO : public CActive
{
	public: 
		static CUpdateAO* NewL(MUpdateAOCallback &aOwningObj, TInt aPriority = EPriorityIdle);
		~CUpdateAO();
	
	//... From CActive
	protected:
		void RunL();	//called when a timer event occurs
		void DoCancel();

    public:
		void Start(void);
		void Reactivate(void);

	protected:
		CUpdateAO(MUpdateAOCallback &owningObj, TInt aPriority);

	// Member elements
    protected:
		MUpdateAOCallback& iOwningObj;
};

#endif