#ifndef TSELECTIONHANDLE_H
#define TSELECTIONHANDLE_H

#include <QObject>
#include <string>
#include <vector>

#include "toonzqt/menubarcommand.h"
#include "tcommon.h"

#undef DVAPI
#undef DVVAR
#ifdef TOONZQT_EXPORTS
#define DVAPI DV_EXPORT_API
#define DVVAR DV_EXPORT_VAR
#else
#define DVAPI DV_IMPORT_API
#define DVVAR DV_IMPORT_VAR
#endif

// forward declaration
class TSelection;
class CommandHandlerInterface;

//=============================================================================
// TSelectionHandle
//-----------------------------------------------------------------------------

class DVAPI TSelectionHandle : public QObject
{
	Q_OBJECT

	std::vector<TSelection *> m_selectionStack;
	std::vector<std::string> m_enabledCommandIds;

public:
	TSelectionHandle();
	~TSelectionHandle();

	TSelection *getSelection() const;
	void setSelection(TSelection *selection);

	void pushSelection();
	void popSelection();

	// called by TSelection::enableCommand
	void enableCommand(std::string cmdId, CommandHandlerInterface *handler);

	void notifySelectionChanged();

	static TSelectionHandle *getCurrent();

signals:
	void selectionSwitched(TSelection *oldSelection, TSelection *newSelection);
	void selectionChanged(TSelection *selection);
};

#endif //TSELECTIONHANDLE_H