コード例 #1
0
KDvoid CCScrollLayer::claimTouch ( CCTouch* pTouch )
{
	CCTouchDispatcher*	pDispatcher = CCDirector::sharedDirector ( )->getTouchDispatcher ( );
	CCArray*			pTargetedHandlers = pDispatcher->getTargetedHandlers ( );

	// Enumerate through all targeted handlers.
	CCObject*	pObject;
	CCARRAY_FOREACH ( pTargetedHandlers, pObject )
	{
		CCTargetedTouchHandler*		pHandler = (CCTargetedTouchHandler*) pObject;
		
		// Only our handler should claim the touch.
		if ( pHandler->getDelegate ( ) == this )
		{
			if ( !pHandler->getClaimedTouches ( )->containsObject ( pTouch ) )
			{
				pHandler->getClaimedTouches ( )->addObject ( pTouch );
			}
		}
		else
		{
			// Steal touch from other targeted delegates, if they claimed it.
			if ( pHandler->getClaimedTouches ( )->containsObject ( pTouch ) )
			{
				if ( pHandler->getDelegate ( ) )
				{
					pHandler->getDelegate ( )->ccTouchEnded ( pTouch, KD_NULL );
				}

				pHandler->getClaimedTouches ( )->removeObject ( pTouch );
			}
		}
	}
コード例 #2
0
//
// dispatch events
//
void CCTouchDispatcher::touches(CCSet *pTouches, CCEvent *pEvent, unsigned int uIndex)
{
	CCAssert(uIndex >= 0 && uIndex < 4, "");

	CCSet *pMutableTouches;
	m_bLocked = true;

	// optimization to prevent a mutable copy when it is not necessary
 	unsigned int uTargetedHandlersCount = m_pTargetedHandlers->count();
 	unsigned int uStandardHandlersCount = m_pStandardHandlers->count();
	bool bNeedsMutableSet = (uTargetedHandlersCount && uStandardHandlersCount);

	pMutableTouches = (bNeedsMutableSet ? pTouches->mutableCopy() : pTouches);

	struct ccTouchHandlerHelperData sHelper = m_sHandlerHelperData[uIndex];
	//
	// process the target handlers 1st
	//
	if (uTargetedHandlersCount > 0)
	{
        CCTouch *pTouch;
		CCSetIterator setIter;
		for (setIter = pTouches->begin(); setIter != pTouches->end(); ++setIter)
		{
			pTouch = (CCTouch *)(*setIter);
			CCTargetedTouchHandler *pHandler;
			CCMutableArray<CCTouchHandler*>::CCMutableArrayIterator arrayIter;
			for (arrayIter = m_pTargetedHandlers->begin(); arrayIter != m_pTargetedHandlers->end(); ++arrayIter)
			/*for (unsigned int i = 0; i < m_pTargetedHandlers->num; ++i)*/
			{
                pHandler = (CCTargetedTouchHandler *)(*arrayIter);

                if (! pHandler)
                {
				   break;
                }

				bool bClaimed = false;
				if (uIndex == CCTOUCHBEGAN)
				{
					bClaimed = pHandler->getDelegate()->ccTouchBegan(pTouch, pEvent);

					if (bClaimed)
					{
						pHandler->getClaimedTouches()->addObject(pTouch);
					}
				} else
				if (pHandler->getClaimedTouches()->containsObject(pTouch))
				{
					// moved ended cancelled
					bClaimed = true;

					switch (sHelper.m_type)
					{
					case CCTOUCHMOVED:
						pHandler->getDelegate()->ccTouchMoved(pTouch, pEvent);
						break;
					case CCTOUCHENDED:
						pHandler->getDelegate()->ccTouchEnded(pTouch, pEvent);
						pHandler->getClaimedTouches()->removeObject(pTouch);
						break;
					case CCTOUCHCANCELLED:
						pHandler->getDelegate()->ccTouchCancelled(pTouch, pEvent);
						pHandler->getClaimedTouches()->removeObject(pTouch);
						break;
					}
				}

				if (bClaimed && pHandler->isSwallowsTouches())
				{
					if (bNeedsMutableSet)
					{
						pMutableTouches->removeObject(pTouch);
					}

					break;
				}
			}
		}
	}

	//
	// process standard handlers 2nd
	//
	if (uStandardHandlersCount > 0 && pMutableTouches->count() > 0)
	{
		CCMutableArray<CCTouchHandler*>::CCMutableArrayIterator iter;
		CCStandardTouchHandler *pHandler;
		for (iter = m_pStandardHandlers->begin(); iter != m_pStandardHandlers->end(); ++iter)
		{
			pHandler = (CCStandardTouchHandler*)(*iter);

            if (! pHandler)
            {
			    break;
            }

			switch (sHelper.m_type)
			{
			case CCTOUCHBEGAN:
				pHandler->getDelegate()->ccTouchesBegan(pMutableTouches, pEvent);
				break;
			case CCTOUCHMOVED:
				pHandler->getDelegate()->ccTouchesMoved(pMutableTouches, pEvent);
				break;
			case CCTOUCHENDED:
				pHandler->getDelegate()->ccTouchesEnded(pMutableTouches, pEvent);
				break;
			case CCTOUCHCANCELLED:
				pHandler->getDelegate()->ccTouchesCancelled(pMutableTouches, pEvent);
				break;
			}
		}
	}

	if (bNeedsMutableSet)
	{
		pMutableTouches->release();
	}

	//
	// Optimization. To prevent a [handlers copy] which is expensive
	// the add/removes/quit is done after the iterations
	//
	m_bLocked = false;
	if (m_bToRemove)
	{
		m_bToRemove = false;
		for (unsigned int i = 0; i < m_pHandlersToRemove->num; ++i)
		{
			forceRemoveDelegate((CCTouchDelegate*)m_pHandlersToRemove->arr[i]);
		}
		ccCArrayRemoveAllValues(m_pHandlersToRemove);
	}

	if (m_bToAdd)
	{
		m_bToAdd = false;
 		CCMutableArray<CCTouchHandler*>::CCMutableArrayIterator iter;
         CCTouchHandler *pHandler;
 		for (iter = m_pHandlersToAdd->begin(); iter != m_pHandlersToAdd->end(); ++iter)
 		{
 			pHandler = *iter;
            if (! pHandler)
            {
                break;
            }

		    if (dynamic_cast<CCTargetedTouchHandler*>(pHandler) != NULL)
			{				
				forceAddHandler(pHandler, m_pTargetedHandlers);
			}
			else
			{
				forceAddHandler(pHandler, m_pStandardHandlers);
			}
 		}
 
 		m_pHandlersToAdd->removeAllObjects();	
	}

	if (m_bToQuit)
	{
		m_bToQuit = false;
		forceRemoveAllDelegates();
	}
}