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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  public:
32  QgsMapToolZoom( QgsMapCanvas* canvas, bool zoomOut );
33 
34  ~QgsMapToolZoom();
35 
37  virtual void canvasMoveEvent( QMouseEvent * e );
38 
40  virtual void canvasPressEvent( QMouseEvent * e );
41 
43  virtual void canvasReleaseEvent( QMouseEvent * e );
44 
45  virtual bool isTransient() { return true; }
46 
47  virtual void deactivate();
48 
49  protected:
51  QRect mZoomRect;
52 
54  bool mZoomOut;
55 
57  bool mDragging;
58 
60 };
61 
62 #endif
virtual bool isTransient()
Check whether this MapTool performs a zoom or pan operation.
virtual void canvasMoveEvent(QMouseEvent *e)
Mouse move event for overriding. Default implementation does nothing.
Definition: qgsmaptool.cpp:134
virtual void canvasPressEvent(QMouseEvent *e)
Mouse press event for overriding. Default implementation does nothing.
Definition: qgsmaptool.cpp:144
Map canvas is a class for displaying all GIS data types on a canvas.
Definition: qgsmapcanvas.h:104
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:91
Abstract base class for all map tools.
Definition: qgsmaptool.h:48
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:149
QgsRubberBand * mRubberBand
bool mDragging
Flag to indicate a map canvas drag operation is taking place.