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qgsmaptooltouch.h
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qgsmaptooltouch.h
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/***************************************************************************
qgsmaptooltouch.h - map tool for zooming and panning using qgestures
----------------------
begin : February 2012
copyright : (C) 2012 by Marco Bernasocchi
email : marco at bernawebdesign.ch
***************************************************************************
* *
* 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 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#ifndef QGSMAPTOOLTOUCH_H
#define QGSMAPTOOLTOUCH_H
#include "qgsmaptool.h"
#include <QGestureEvent>
#include <QPinchGesture>
class QgsMapCanvas;
/** \ingroup gui
* A map tool for panning the map.
* @see QgsMapTool
* @note may not be available in Python bindings on all platforms
*/
class GUI_EXPORT QgsMapToolTouch : public QgsMapTool
{
public:
//! constructor
QgsMapToolTouch( QgsMapCanvas* canvas );
~QgsMapToolTouch();
void activate() override;
void deactivate() override;
virtual void canvasMoveEvent( QgsMapMouseEvent* e ) override;
virtual void canvasReleaseEvent( QgsMapMouseEvent* e ) override;
virtual void canvasDoubleClickEvent( QgsMapMouseEvent* e ) override;
virtual Flags flags() const override { return QgsMapTool::Transient | QgsMapTool::AllowZoomRect; }
bool gestureEvent( QGestureEvent *event ) override;
private:
//! Flag to indicate a map canvas drag operation is taking place
bool mDragging;
//! Flag to indicate a pinch gesture is taking place
bool mPinching;
void pinchTriggered( QPinchGesture *gesture );
};
#endif