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qgsmaptoolzoom.h
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1 /***************************************************************************
2  qgsmaptoolzoom.h - map tool for zooming
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 QGSMAPTOOLZOOM_H
17 #define QGSMAPTOOLZOOM_H
18 
19 #include "qgsmaptool.h"
20 #include <QRect>
21 
22 class QgsRubberBand;
23 
28 class GUI_EXPORT QgsMapToolZoom : public QgsMapTool
29 {
30  Q_OBJECT
31 
32  public:
34  QgsMapToolZoom( QgsMapCanvas* canvas, bool zoomOut );
35 
36  ~QgsMapToolZoom();
37 
39  virtual void canvasMoveEvent( QMouseEvent * e ) override;
40 
42  virtual void canvasPressEvent( QMouseEvent * e ) override;
43 
45  virtual void canvasReleaseEvent( QMouseEvent * e ) override;
46 
48  virtual bool isTransient() override { return true; }
49 
51  virtual void deactivate() override;
52 
53  protected:
56 
58  bool mZoomOut;
59 
61  bool mDragging;
62 
64 };
65 
66 #endif
virtual void canvasMoveEvent(QMouseEvent *e)
Mouse move event for overriding. Default implementation does nothing.
Definition: qgsmaptool.cpp:145
virtual void canvasPressEvent(QMouseEvent *e)
Mouse press event for overriding. Default implementation does nothing.
Definition: qgsmaptool.cpp:155
Map canvas is a class for displaying all GIS data types on a canvas.
Definition: qgsmapcanvas.h:105
bool mZoomOut
indicates whether we're zooming in or out
A class for drawing transient features (e.g.
Definition: qgsrubberband.h:32
virtual void deactivate()
called when map tool is being deactivated
Definition: qgsmaptool.cpp:99
Abstract base class for all map tools.
Definition: qgsmaptool.h:49
QRect mZoomRect
stores actual zoom rect
A map tool for zooming into the map.
virtual void canvasReleaseEvent(QMouseEvent *e)
Mouse release event for overriding. Default implementation does nothing.
Definition: qgsmaptool.cpp:160
QgsRubberBand * mRubberBand
bool mDragging
Flag to indicate a map canvas drag operation is taking place.
virtual bool isTransient() override
indicates whether we're zooming in or out