* Copyright 2009, Ingo Weinhold, ingo_weinhold@gmx.de.
* Distributed under the terms of the MIT License.
*/
#ifndef VALUE_NODE_CONTAINER_H
#define VALUE_NODE_CONTAINER_H
#include <Locker.h>
#include <ObjectList.h>
#include <Referenceable.h>
class ValueNode;
class ValueNodeChild;
class ValueNodeContainer : public BReferenceable {
public:
class Listener;
public:
ValueNodeContainer();
virtual ~ValueNodeContainer();
status_t Init();
inline bool Lock() { return fLock.Lock(); }
inline void Unlock() { fLock.Unlock(); }
int32 CountChildren() const;
ValueNodeChild* ChildAt(int32 index) const;
bool AddChild(ValueNodeChild* child);
void RemoveChild(ValueNodeChild* child);
void RemoveAllChildren();
bool AddListener(Listener* listener);
void RemoveListener(Listener* listener);
void NotifyValueNodeChanged(
ValueNodeChild* nodeChild,
ValueNode* oldNode, ValueNode* newNode);
void NotifyValueNodeChildrenCreated(ValueNode* node);
void NotifyValueNodeChildrenDeleted(ValueNode* node);
void NotifyValueNodeValueChanged(ValueNode* node);
private:
typedef BObjectList<ValueNodeChild> NodeChildList;
typedef BObjectList<Listener> ListenerList;
private:
BLocker fLock;
NodeChildList fChildren;
ListenerList fListeners;
};
class ValueNodeContainer::Listener {
public:
virtual ~Listener();
virtual void ValueNodeChanged(ValueNodeChild* nodeChild,
ValueNode* oldNode, ValueNode* newNode);
virtual void ValueNodeChildrenCreated(ValueNode* node);
virtual void ValueNodeChildrenDeleted(ValueNode* node);
virtual void ValueNodeValueChanged(ValueNode* node);
};
#endif
