#ifndef TOOL_H
#define TOOL_H

#include <QKeyEvent>
#include <QMouseEvent>
#include <QObject>

#include "../../../fixC11.h"

#include "../Painter.h"

class MapView2D;

/**
 * interface for every MapView tool.
 * a tool may be a background tool (e.g. a ruler-display, grid, ..)
 * or a foreground (active) one, which e.g. selects nodes, creates a new element, ...
 */
class Tool : public QObject {

	Q_OBJECT

public:

	Tool() {;}

	virtual ~Tool() {;}

	/** the tool must return its name here */
	virtual const std::string getName() const = 0;

	/** the tool was activated (by user or by code) */
	virtual void becomesActive() {;}

	/** the tool was deactivated (by user or by code) */
	virtual void becomesInactive() {;}


	/** events: return TRUE when you consumed the event */

	virtual bool mousePressEvent(MapView2D* m, QMouseEvent* e) { (void) m; (void) e; return false; }
	virtual bool mouseMoveEvent(MapView2D* m, QMouseEvent* e) { (void) m; (void) e; return false; }
	virtual bool mouseReleaseEvent(MapView2D* m, QMouseEvent* e) { (void) m; (void) e; return false; }

	virtual bool wheelEvent(MapView2D* m, QWheelEvent* e) { (void) m; (void) e; return false; }

	virtual bool keyPressEvent(MapView2D* m, QKeyEvent* e) { (void) m; (void) e; return false; }

	virtual void paintBefore(MapView2D* m, Painter& p) { (void) m; (void) p; }
	virtual void paintAfter(MapView2D* m, Painter& p) { (void) m; (void) p; }

	virtual void layerChange(MapView2D* m) { (void) m; }

signals:

	void onHelpTextChange(QString str);

};

#endif // TOOL_H