QGIS API Documentation 3.29.0-Master (8c80f25a4f)
qgsmaptoolpan.h
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1/***************************************************************************
2 qgsmaptoolpan.h - map tool for panning in map canvas
3 ---------------------
4 begin : January 2006
5 copyright : (C) 2006 by Martin Dobias
6 email : wonder.sk at gmail dot com
7 ***************************************************************************
8 * *
9 * This program is free software; you can redistribute it and/or modify *
10 * it under the terms of the GNU General Public License as published by *
11 * the Free Software Foundation; either version 2 of the License, or *
12 * (at your option) any later version. *
13 * *
14 ***************************************************************************/
15
16#ifndef QGSMAPTOOLPAN_H
17#define QGSMAPTOOLPAN_H
18
19#include "qgsmaptool.h"
20#include "qgis_gui.h"
21#include "qgspointxy.h"
22#include "qgsdistancearea.h"
23
24class QgsMapCanvas;
25
26
32class GUI_EXPORT QgsMapToolPan : public QgsMapTool
33{
34 Q_OBJECT
35
36 public:
38 QgsMapToolPan( QgsMapCanvas *canvas );
39 ~QgsMapToolPan() override;
40
41 void activate() override;
42 void deactivate() override;
43
44 Flags flags() const override;
45 void canvasPressEvent( QgsMapMouseEvent *e ) override;
46 void canvasMoveEvent( QgsMapMouseEvent *e ) override;
47 void canvasReleaseEvent( QgsMapMouseEvent *e ) override;
48 void canvasDoubleClickEvent( QgsMapMouseEvent *e ) override;
49 bool gestureEvent( QGestureEvent *e ) override;
50
56 bool isDragging() const { return mDragging; }
57
58 signals:
59
70 void panDistanceBearingChanged( double distance, QgsUnitTypes::DistanceUnit unit, double bearing );
71
72 private:
73
75 bool mDragging;
77 bool mPinching = false;
78
79 void pinchTriggered( QPinchGesture *gesture );
80};
81
82#endif
Map canvas is a class for displaying all GIS data types on a canvas.
Definition: qgsmapcanvas.h:90
A QgsMapMouseEvent is the result of a user interaction with the mouse on a QgsMapCanvas.
A map tool for panning the map.
Definition: qgsmaptoolpan.h:33
bool isDragging() const
Returns true if a drag operation is in progress.
Definition: qgsmaptoolpan.h:56
void panDistanceBearingChanged(double distance, QgsUnitTypes::DistanceUnit unit, double bearing)
Emitted whenever the distance or bearing of an in-progress panning operation is changed.
Abstract base class for all map tools.
Definition: qgsmaptool.h:71
virtual void canvasDoubleClickEvent(QgsMapMouseEvent *e)
Mouse double-click event for overriding. Default implementation does nothing.
Definition: qgsmaptool.cpp:173
virtual void canvasPressEvent(QgsMapMouseEvent *e)
Mouse press event for overriding. Default implementation does nothing.
Definition: qgsmaptool.cpp:178
virtual void canvasMoveEvent(QgsMapMouseEvent *e)
Mouse move event for overriding. Default implementation does nothing.
Definition: qgsmaptool.cpp:168
virtual Flags flags() const
Returns the flags for the map tool.
Definition: qgsmaptool.h:125
virtual void canvasReleaseEvent(QgsMapMouseEvent *e)
Mouse release event for overriding. Default implementation does nothing.
Definition: qgsmaptool.cpp:183
virtual void activate()
called when set as currently active map tool
Definition: qgsmaptool.cpp:94
virtual bool gestureEvent(QGestureEvent *e)
gesture event for overriding. Default implementation does nothing.
Definition: qgsmaptool.cpp:203
virtual void deactivate()
called when map tool is being deactivated
Definition: qgsmaptool.cpp:110
DistanceUnit
Units of distance.
Definition: qgsunittypes.h:68