text: /****************************************************************************
  Copyright (c) 2010-2011 cocos2d-x.org
  Copyright (c) 2009      Valentin Milea
  
  http://www.cocos2d-x.org
  
  Permission is hereby granted, free of charge, to any person obtaining a copy
  of this software and associated documentation files (the "Software"), to deal
  in the Software without restriction, including without limitation the rights
  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  copies of the Software, and to permit persons to whom the Software is
  furnished to do so, subject to the following conditions:
  
  The above copyright notice and this permission notice shall be included in
  all copies or substantial portions of the Software.
  
  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  THE SOFTWARE.
  ****************************************************************************/
  
  #ifndef __TOUCH_DISPATCHER_CCTOUCH_DISPATCHER_H__
  #define __TOUCH_DISPATCHER_CCTOUCH_DISPATCHER_H__
  
  #include "CCTouchDelegateProtocol.h"
  #include "CCObject.h"
  #include "CCMutableArray.h"
  namespace   cocos2d {
  
  typedef enum
  {
  	ccTouchSelectorBeganBit = 1 << 0,
  	ccTouchSelectorMovedBit = 1 << 1,
  	ccTouchSelectorEndedBit = 1 << 2,
  	ccTouchSelectorCancelledBit = 1 << 3,
  	ccTouchSelectorAllBits = ( ccTouchSelectorBeganBit | ccTouchSelectorMovedBit | ccTouchSelectorEndedBit | ccTouchSelectorCancelledBit),
  } ccTouchSelectorFlag;
  
  
  enum {
  	CCTOUCHBEGAN,
  	CCTOUCHMOVED,
  	CCTOUCHENDED,
  	CCTOUCHCANCELLED,
  	
  	ccTouchMax,
  };
  
  class CCSet;
  class CCEvent;
  
  struct ccTouchHandlerHelperData {
  	// we only use the type
  //	void (StandardTouchDelegate::*touchesSel)(CCSet*, CCEvent*);
  //	void (TargetedTouchDelegate::*touchSel)(NSTouch*, CCEvent*);
  	int  m_type;
  };
  
  
  class CC_DLL EGLTouchDelegate
  {
  public:
  	virtual void touchesBegan(CCSet* touches, CCEvent* pEvent) = 0;
  	virtual void touchesMoved(CCSet* touches, CCEvent* pEvent) = 0;
  	virtual void touchesEnded(CCSet* touches, CCEvent* pEvent) = 0;
  	virtual void touchesCancelled(CCSet* touches, CCEvent* pEvent) = 0;
  
      virtual ~EGLTouchDelegate() {}
  };
  
  class CCTouchHandler;
  struct _ccCArray;
  /** @brief CCTouchDispatcher.
   Singleton that handles all the touch events.
   The dispatcher dispatches events to the registered TouchHandlers.
   There are 2 different type of touch handlers:
     - Standard Touch Handlers
     - Targeted Touch Handlers
   
   The Standard Touch Handlers work like the CocoaTouch touch handler: a set of touches is passed to the delegate.
   On the other hand, the Targeted Touch Handlers only receive 1 touch at the time, and they can "swallow" touches (avoid the propagation of the event).
   
   Firstly, the dispatcher sends the received touches to the targeted touches.
   These touches can be swallowed by the Targeted Touch Handlers. If there are still remaining touches, then the remaining touches will be sent
   to the Standard Touch Handlers.
  
   @since v0.8.0
   */
  class CC_DLL CCTouchDispatcher : public CCObject, public EGLTouchDelegate
  {
  public:
  	~CCTouchDispatcher();
  	bool init(void);
  	CCTouchDispatcher() 
          : m_pTargetedHandlers(NULL)
          , m_pStandardHandlers(NULL)
  		, m_pHandlersToAdd(NULL)
  		, m_pHandlersToRemove(NULL)
  		
  	{}
  
  public:
  	/** Whether or not the events are going to be dispatched. Default: true */
      bool isDispatchEvents(void);
  	void setDispatchEvents(bool bDispatchEvents);
  
  	/** Adds a standard touch delegate to the dispatcher's list.
  	 See StandardTouchDelegate description.
  	 IMPORTANT: The delegate will be retained.
  	 */
  	void addStandardDelegate(CCTouchDelegate *pDelegate, int nPriority);
  
  	/** Adds a targeted touch delegate to the dispatcher's list.
  	 See TargetedTouchDelegate description.
  	 IMPORTANT: The delegate will be retained.
  	 */
  	void addTargetedDelegate(CCTouchDelegate *pDelegate, int nPriority, bool bSwallowsTouches);
  
  	/** Removes a touch delegate.
  	 The delegate will be released
  	 */
  	void removeDelegate(CCTouchDelegate *pDelegate);
  
  	/** Removes all touch delegates, releasing all the delegates */
  	void removeAllDelegates(void);
  
  	/** Changes the priority of a previously added delegate. The lower the number,
      the higher the priority */
  	void setPriority(int nPriority, CCTouchDelegate *pDelegate);
  
  	void touches(CCSet *pTouches, CCEvent *pEvent, unsigned int uIndex);
  
  	virtual void touchesBegan(CCSet* touches, CCEvent* pEvent);
  	virtual void touchesMoved(CCSet* touches, CCEvent* pEvent);
  	virtual void touchesEnded(CCSet* touches, CCEvent* pEvent);
  	virtual void touchesCancelled(CCSet* touches, CCEvent* pEvent);
  
  public:
  	/** singleton of the CCTouchDispatcher */
  	static CCTouchDispatcher* sharedDispatcher();
  	CCTouchHandler* findHandler(CCTouchDelegate *pDelegate);
  
  protected:
  	void forceRemoveDelegate(CCTouchDelegate *pDelegate);
  	void forceAddHandler(CCTouchHandler *pHandler, CCMutableArray<CCTouchHandler*> *pArray);
  	void forceRemoveAllDelegates(void);
  	void rearrangeHandlers(CCMutableArray<CCTouchHandler*> *pArray);
  	CCTouchHandler* findHandler(CCMutableArray<CCTouchHandler*> *pArray, CCTouchDelegate *pDelegate);
  
  protected:
   	CCMutableArray<CCTouchHandler*> *m_pTargetedHandlers;
   	CCMutableArray<CCTouchHandler*> *m_pStandardHandlers;
  
  	bool m_bLocked;
  	bool m_bToAdd;
  	bool m_bToRemove;
   	CCMutableArray<CCTouchHandler*> *m_pHandlersToAdd;
  	struct _ccCArray *m_pHandlersToRemove;
  	bool m_bToQuit;
  	bool m_bDispatchEvents;
  
  	// 4, 1 for each type of event
  	struct ccTouchHandlerHelperData m_sHandlerHelperData[ccTouchMax];
  };
  }//namespace   cocos2d 
  
  #endif // __TOUCH_DISPATCHER_CCTOUCH_DISPATCHER_H__
  