#ifndef SELECTION_H

#define SELECTION_H

#include <QString>

#include <QList>

#include <QGraphicsScene>

#include <QItemSelectionModel>

#include "treeitem.h"

class BranchObj;

class FloatImageObj;

class MapCenterObj;

class LinkableMapObj;

class VymModel;

class Selection 

{

public:

	enum Type {Undefined,Branch,MapCenter,FloatImage};

	Selection ();

	~Selection();

	void copy(const Selection&);

	void clear();

	void setModel (VymModel *);

	void update();

	bool select (LinkableMapObj*);

	bool select (const QString &);

	bool reselect ();

	void unselect ();

	bool isBlocked ();

	void block();

	void unblock();

	bool isEmpty();

	uint count();

	Type type();

	LinkableMapObj * first();		// first in selection list

	LinkableMapObj * single();		// NULL, if multiple selected

	BranchObj* getBranch();

	TreeItem* getBranchItem();		

	QModelIndex getBranchIndex();	//!< Returns index of first selected branch or mapcenter

	FloatImageObj* getFloatImage();

	QString getSelectString();

private:

	QList <LinkableMapObj*> selectList;

	QList <LinkableMapObj*> lastSelectList;

	VymModel *model;

	QItemSelectionModel *selModel;	//!< QSelectionModel is shared across views and initialized in setModel

	QColor color;

	bool blocked;					//!< if true, no new selection possible

};

#endif