CC3NodeTransformListeners Class Reference
| Inherits from | NSObject |
| Conforms to | NSLocking |
| Declared in | CC3NodeListeners.h |
Properties
count
Returns the number of listeners.
@property (nonatomic, readonly) NSUInteger countDeclared In
CC3NodeListeners.hisEmpty
Returns whether there are no listeners.
@property (nonatomic, readonly) BOOL isEmptyDeclared In
CC3NodeListeners.htransformListeners
Returns a copy of the collection of objects that have requested that they be notified whenever the transform of the node has changed.
@property (nonatomic, retain, readonly) NSSet *transformListenersDiscussion
Each object in the returned collection implements the CC3NodeTransformListenerProtocol, and will be sent the nodeWasTransformed: notification message when the transform of this node changes.
Objects can be added to this collection by using the addTransformListener: method, and removed using the removeTransformListener: method. This property returns a copy of the collection stored in this node. You can safely invoke the addTransformListener: or removeTransformListener: methods while iterating the returned collection.
Transform listeners are weakly referenced. Each listener should know who it has subscribed to, and must remove itself as a listener (using the removeTransformListener: method) when appropriate, such as when being deallocated.
Declared In
CC3NodeListeners.hInstance Methods
addTransformListener:
Adds the specified object as a transform listener.
- (void)addTransformListener:(id<CC3NodeTransformListenerProtocol>)aListenerDiscussion
It is safe to invoke this method more than once for the same listener, or with a nil listener. In either case, this method simply ignores the request.
Transform listeners are weakly referenced. Each listener should know who it has subscribed to, and must remove itself as a listener (using the removeTransformListener: method) when appropriate, such as when being deallocated.
Declared In
CC3NodeListeners.hinitForNode:
Initializes this instance to track transform listeners for the specified node.
- (id)initForNode:(CC3Node *)nodeDeclared In
CC3NodeListeners.hnotifyDestructionListeners
Notify the transform listeners that the node has been destroyed.
- (void)notifyDestructionListenersDeclared In
CC3NodeListeners.hnotifyTransformListeners
Notify the transform listeners that the node has been transformed.
- (void)notifyTransformListenersDeclared In
CC3NodeListeners.hremoveAllTransformListeners
Removes all transform listeners.
- (void)removeAllTransformListenersDeclared In
CC3NodeListeners.hremoveTransformListener:
Removes the specified object as a transform listener.
- (void)removeTransformListener:(id<CC3NodeTransformListenerProtocol>)aListenerDiscussion
It is safe to invoke this method with a listener that was not previously added, or with a nil listener. In either case, this method simply ignores the request.
Declared In
CC3NodeListeners.h