/*==LICENSE==*

CyanWorlds.com Engine - MMOG client, server and tools
Copyright (C) 2011  Cyan Worlds, Inc.

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.

You can contact Cyan Worlds, Inc. by email legal@cyan.com
 or by snail mail at:
      Cyan Worlds, Inc.
      14617 N Newport Hwy
      Mead, WA   99021

*==LICENSE==*/
#ifndef SCENE_WATCHER_H
#define SCENE_WATCHER_H

#include "Max.h"
#include "notify.h"

#include <vector>
#include <set>

#include "../pnKeyedObject/plKey.h"

class plMaxNode;

class SceneWatcher : public ReferenceMaker
{
public:
	typedef std::vector<plMaxNode*>	NodeList;
	typedef std::set<plMaxNode*>	NodeSet;
	typedef std::vector<plKey>		KeyList;

protected:
	NodeList fNodes;
	KeyList fDeleted;

	bool fDirty;

public:
	SceneWatcher();
	~SceneWatcher();

	////////////////////////////////////////////////////////////////////////////
	// ReferenceMaker functions
	//
	RefResult NotifyRefChanged(Interval changeInt, RefTargetHandle hTarget, 
		PartID& partID, RefMessage message);

	int NumRefs();
	RefTargetHandle GetReference(int i);
	void SetReference(int i, RefTargetHandle rtarg);

	BOOL IsRealDependency(ReferenceTarget *rtarg) { return FALSE; }

	// Get all the nodes we're watching
	const NodeList& GetWatchNodes();

	// Get all the nodes that need to be reconverted
	bool AnyDirty();
	void GetDirty(NodeSet& dirtyNodes);

	bool AnyDeleted();
	KeyList& GetDeleted();

protected:
	void IAddRef(plMaxNode *node);
	void IRemoveRef(plMaxNode *node);

	void IAddNodeRecur(plMaxNode *node);

	// Helpers for GetDirtyNodes
	void IGetDependents(plMaxNode *node, NodeSet& nodes);
	void IGetLogicDependents(plMaxNode *node, NodeSet& nodes);

	void ISetDirty();

	static void INotify(void *param, NotifyInfo *info);
};

#endif //SCENE_WATCHER_H