QGIS API Documentation  3.13.0-Master (788156190c)
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 
24 class QgsMapCanvas;
25 
26 
32 class 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 { return QgsMapTool::Transient | QgsMapTool::AllowZoomRect; }
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
QgsMapTool::canvasDoubleClickEvent
virtual void canvasDoubleClickEvent(QgsMapMouseEvent *e)
Mouse double-click event for overriding. Default implementation does nothing.
Definition: qgsmaptool.cpp:162
QgsMapToolPan::flags
Flags flags() const override
Returns the flags for the map tool.
Definition: qgsmaptoolpan.h:44
QgsMapCanvas
Definition: qgsmapcanvas.h:78
QgsMapTool::deactivate
virtual void deactivate()
called when map tool is being deactivated
Definition: qgsmaptool.cpp:99
QgsMapTool::Transient
@ Transient
Definition: qgsmaptool.h:90
QgsUnitTypes::DistanceUnit
DistanceUnit
Units of distance.
Definition: qgsunittypes.h:67
QgsMapTool
Definition: qgsmaptool.h:62
QgsMapTool::gestureEvent
virtual bool gestureEvent(QGestureEvent *e)
gesture event for overriding. Default implementation does nothing.
Definition: qgsmaptool.cpp:192
qgsmaptool.h
QgsMapToolPan
Definition: qgsmaptoolpan.h:32
QgsMapTool::activate
virtual void activate()
called when set as currently active map tool
Definition: qgsmaptool.cpp:83
QgsMapTool::canvasPressEvent
virtual void canvasPressEvent(QgsMapMouseEvent *e)
Mouse press event for overriding. Default implementation does nothing.
Definition: qgsmaptool.cpp:167
QgsMapMouseEvent
Definition: qgsmapmouseevent.h:35
QgsMapTool::canvasMoveEvent
virtual void canvasMoveEvent(QgsMapMouseEvent *e)
Mouse move event for overriding. Default implementation does nothing.
Definition: qgsmaptool.cpp:157
QgsMapTool::canvasReleaseEvent
virtual void canvasReleaseEvent(QgsMapMouseEvent *e)
Mouse release event for overriding. Default implementation does nothing.
Definition: qgsmaptool.cpp:172
qgsdistancearea.h
QgsMapTool::AllowZoomRect
@ AllowZoomRect
Allow zooming by rectangle (by holding shift and dragging) while the tool is active.
Definition: qgsmaptool.h:94
QgsMapToolPan::isDragging
bool isDragging() const
Returns true if a drag operation is in progress.
Definition: qgsmaptoolpan.h:56
qgspointxy.h