From 9cd57b731ab1c666d4a1cb725538fdc137763d12 Mon Sep 17 00:00:00 2001 From: Starla Insigna Date: Sat, 30 Jul 2011 11:19:14 -0400 Subject: Initial commit (version 0.2.1) --- libs/cocos2d/Platforms/iOS/CCTouchDispatcher.m | 347 +++++++++++++++++++++++++ 1 file changed, 347 insertions(+) create mode 100755 libs/cocos2d/Platforms/iOS/CCTouchDispatcher.m (limited to 'libs/cocos2d/Platforms/iOS/CCTouchDispatcher.m') diff --git a/libs/cocos2d/Platforms/iOS/CCTouchDispatcher.m b/libs/cocos2d/Platforms/iOS/CCTouchDispatcher.m new file mode 100755 index 0000000..1553b48 --- /dev/null +++ b/libs/cocos2d/Platforms/iOS/CCTouchDispatcher.m @@ -0,0 +1,347 @@ +/* + * cocos2d for iPhone: http://www.cocos2d-iphone.org + * + * Copyright (c) 2009 Valentin Milea + * + * 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. + * + */ + +// Only compile this code on iOS. These files should NOT be included on your Mac project. +// But in case they are included, it won't be compiled. +#import +#ifdef __IPHONE_OS_VERSION_MAX_ALLOWED + + +#import "CCTouchDispatcher.h" +#import "CCTouchHandler.h" + +@implementation CCTouchDispatcher + +@synthesize dispatchEvents; + +static CCTouchDispatcher *sharedDispatcher = nil; + ++(CCTouchDispatcher*) sharedDispatcher +{ + @synchronized(self) { + if (sharedDispatcher == nil) + sharedDispatcher = [[self alloc] init]; // assignment not done here + } + return sharedDispatcher; +} + ++(id) allocWithZone:(NSZone *)zone +{ + @synchronized(self) { + NSAssert(sharedDispatcher == nil, @"Attempted to allocate a second instance of a singleton."); + return [super allocWithZone:zone]; + } + return nil; // on subsequent allocation attempts return nil +} + +-(id) init +{ + if((self = [super init])) { + + dispatchEvents = YES; + targetedHandlers = [[NSMutableArray alloc] initWithCapacity:8]; + standardHandlers = [[NSMutableArray alloc] initWithCapacity:4]; + + handlersToAdd = [[NSMutableArray alloc] initWithCapacity:8]; + handlersToRemove = [[NSMutableArray alloc] initWithCapacity:8]; + + toRemove = NO; + toAdd = NO; + toQuit = NO; + locked = NO; + + handlerHelperData[kCCTouchBegan] = (struct ccTouchHandlerHelperData) {@selector(ccTouchesBegan:withEvent:),@selector(ccTouchBegan:withEvent:),kCCTouchSelectorBeganBit}; + handlerHelperData[kCCTouchMoved] = (struct ccTouchHandlerHelperData) {@selector(ccTouchesMoved:withEvent:),@selector(ccTouchMoved:withEvent:),kCCTouchSelectorMovedBit}; + handlerHelperData[kCCTouchEnded] = (struct ccTouchHandlerHelperData) {@selector(ccTouchesEnded:withEvent:),@selector(ccTouchEnded:withEvent:),kCCTouchSelectorEndedBit}; + handlerHelperData[kCCTouchCancelled] = (struct ccTouchHandlerHelperData) {@selector(ccTouchesCancelled:withEvent:),@selector(ccTouchCancelled:withEvent:),kCCTouchSelectorCancelledBit}; + + } + + return self; +} + +-(void) dealloc +{ + [targetedHandlers release]; + [standardHandlers release]; + [handlersToAdd release]; + [handlersToRemove release]; + [super dealloc]; +} + +// +// handlers management +// + +#pragma mark TouchDispatcher - Add Hanlder + +-(void) forceAddHandler:(CCTouchHandler*)handler array:(NSMutableArray*)array +{ + NSUInteger i = 0; + + for( CCTouchHandler *h in array ) { + if( h.priority < handler.priority ) + i++; + + NSAssert( h.delegate != handler.delegate, @"Delegate already added to touch dispatcher."); + } + [array insertObject:handler atIndex:i]; +} + +-(void) addStandardDelegate:(id) delegate priority:(int)priority +{ + CCTouchHandler *handler = [CCStandardTouchHandler handlerWithDelegate:delegate priority:priority]; + if( ! locked ) { + [self forceAddHandler:handler array:standardHandlers]; + } else { + [handlersToAdd addObject:handler]; + toAdd = YES; + } +} + +-(void) addTargetedDelegate:(id) delegate priority:(int)priority swallowsTouches:(BOOL)swallowsTouches +{ + CCTouchHandler *handler = [CCTargetedTouchHandler handlerWithDelegate:delegate priority:priority swallowsTouches:swallowsTouches]; + if( ! locked ) { + [self forceAddHandler:handler array:targetedHandlers]; + } else { + [handlersToAdd addObject:handler]; + toAdd = YES; + } +} + +#pragma mark TouchDispatcher - removeDelegate + +-(void) forceRemoveDelegate:(id)delegate +{ + // XXX: remove it from both handlers ??? + + for( CCTouchHandler *handler in targetedHandlers ) { + if( handler.delegate == delegate ) { + [targetedHandlers removeObject:handler]; + break; + } + } + + for( CCTouchHandler *handler in standardHandlers ) { + if( handler.delegate == delegate ) { + [standardHandlers removeObject:handler]; + break; + } + } +} + +-(void) removeDelegate:(id) delegate +{ + if( delegate == nil ) + return; + + if( ! locked ) { + [self forceRemoveDelegate:delegate]; + } else { + [handlersToRemove addObject:delegate]; + toRemove = YES; + } +} + +#pragma mark TouchDispatcher - removeAllDelegates + +-(void) forceRemoveAllDelegates +{ + [standardHandlers removeAllObjects]; + [targetedHandlers removeAllObjects]; +} +-(void) removeAllDelegates +{ + if( ! locked ) + [self forceRemoveAllDelegates]; + else + toQuit = YES; +} + +#pragma mark Changing priority of added handlers + +-(CCTouchHandler*) findHandler:(id)delegate +{ + for( CCTouchHandler *handler in targetedHandlers ) { + if( handler.delegate == delegate ) { + return handler; + } + } + + for( CCTouchHandler *handler in standardHandlers ) { + if( handler.delegate == delegate ) { + return handler; + } + } + return nil; +} + +NSComparisonResult sortByPriority(id first, id second, void *context) +{ + if (((CCTouchHandler*)first).priority < ((CCTouchHandler*)second).priority) + return NSOrderedAscending; + else if (((CCTouchHandler*)first).priority > ((CCTouchHandler*)second).priority) + return NSOrderedDescending; + else + return NSOrderedSame; +} + +-(void) rearrangeHandlers:(NSMutableArray*)array +{ + [array sortUsingFunction:sortByPriority context:nil]; +} + +-(void) setPriority:(int) priority forDelegate:(id) delegate +{ + NSAssert(delegate != nil, @"Got nil touch delegate!"); + + CCTouchHandler *handler = nil; + handler = [self findHandler:delegate]; + + NSAssert(handler != nil, @"Delegate not found!"); + + handler.priority = priority; + + [self rearrangeHandlers:targetedHandlers]; + [self rearrangeHandlers:standardHandlers]; +} + +// +// dispatch events +// +-(void) touches:(NSSet*)touches withEvent:(UIEvent*)event withTouchType:(unsigned int)idx +{ + NSAssert(idx < 4, @"Invalid idx value"); + + id mutableTouches; + locked = YES; + + // optimization to prevent a mutable copy when it is not necessary + unsigned int targetedHandlersCount = [targetedHandlers count]; + unsigned int standardHandlersCount = [standardHandlers count]; + BOOL needsMutableSet = (targetedHandlersCount && standardHandlersCount); + + mutableTouches = (needsMutableSet ? [touches mutableCopy] : touches); + + struct ccTouchHandlerHelperData helper = handlerHelperData[idx]; + // + // process the target handlers 1st + // + if( targetedHandlersCount > 0 ) { + for( UITouch *touch in touches ) { + for(CCTargetedTouchHandler *handler in targetedHandlers) { + + BOOL claimed = NO; + if( idx == kCCTouchBegan ) { + claimed = [handler.delegate ccTouchBegan:touch withEvent:event]; + if( claimed ) + [handler.claimedTouches addObject:touch]; + } + + // else (moved, ended, cancelled) + else if( [handler.claimedTouches containsObject:touch] ) { + claimed = YES; + if( handler.enabledSelectors & helper.type ) + [handler.delegate performSelector:helper.touchSel withObject:touch withObject:event]; + + if( helper.type & (kCCTouchSelectorCancelledBit | kCCTouchSelectorEndedBit) ) + [handler.claimedTouches removeObject:touch]; + } + + if( claimed && handler.swallowsTouches ) { + if( needsMutableSet ) + [mutableTouches removeObject:touch]; + break; + } + } + } + } + + // + // process standard handlers 2nd + // + if( standardHandlersCount > 0 && [mutableTouches count]>0 ) { + for( CCTouchHandler *handler in standardHandlers ) { + if( handler.enabledSelectors & helper.type ) + [handler.delegate performSelector:helper.touchesSel withObject:mutableTouches withObject:event]; + } + } + if( needsMutableSet ) + [mutableTouches release]; + + // + // Optimization. To prevent a [handlers copy] which is expensive + // the add/removes/quit is done after the iterations + // + locked = NO; + if( toRemove ) { + toRemove = NO; + for( id delegate in handlersToRemove ) + [self forceRemoveDelegate:delegate]; + [handlersToRemove removeAllObjects]; + } + if( toAdd ) { + toAdd = NO; + for( CCTouchHandler *handler in handlersToAdd ) { + Class targetedClass = [CCTargetedTouchHandler class]; + if( [handler isKindOfClass:targetedClass] ) + [self forceAddHandler:handler array:targetedHandlers]; + else + [self forceAddHandler:handler array:standardHandlers]; + } + [handlersToAdd removeAllObjects]; + } + if( toQuit ) { + toQuit = NO; + [self forceRemoveAllDelegates]; + } +} + +- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event +{ + if( dispatchEvents ) + [self touches:touches withEvent:event withTouchType:kCCTouchBegan]; +} +- (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event +{ + if( dispatchEvents ) + [self touches:touches withEvent:event withTouchType:kCCTouchMoved]; +} + +- (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event +{ + if( dispatchEvents ) + [self touches:touches withEvent:event withTouchType:kCCTouchEnded]; +} + +- (void)touchesCancelled:(NSSet *)touches withEvent:(UIEvent *)event +{ + if( dispatchEvents ) + [self touches:touches withEvent:event withTouchType:kCCTouchCancelled]; +} +@end + +#endif // __IPHONE_OS_VERSION_MAX_ALLOWED -- cgit 1.4.1