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qgsmapoverviewcanvas.h
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1 /***************************************************************************
2  qgsmapoverviewcanvas.h
3  Map canvas subclassed for overview
4  -------------------
5  begin : 09/14/2005
6  copyright : (C) 2005 by Martin Dobias
7  email : won.der at centrum.sk
8  ***************************************************************************/
9 
10 /***************************************************************************
11  * *
12  * This program is free software; you can redistribute it and/or modify *
13  * it under the terms of the GNU General Public License as published by *
14  * the Free Software Foundation; either version 2 of the License, or *
15  * (at your option) any later version. *
16  * *
17  ***************************************************************************/
18 
19 #ifndef QGSMAPOVERVIEWCANVAS_H
20 #define QGSMAPOVERVIEWCANVAS_H
21 
22 
23 #include <QMouseEvent>
24 #include <QWheelEvent>
25 #include <QWidget>
26 #include <QStringList>
27 #include <QPixmap>
28 
29 class QgsMapCanvas;
30 class QgsPanningWidget; // defined in .cpp
31 class QgsRectangle;
32 
34 #include "qgsmapsettings.h"
35 
39 class GUI_EXPORT QgsMapOverviewCanvas : public QWidget
40 {
41  Q_OBJECT
42 
43  public:
44  QgsMapOverviewCanvas( QWidget * parent = 0, QgsMapCanvas* mapCanvas = NULL );
45 
47 
49  void refresh();
50 
52  void setBackgroundColor( const QColor& color );
53 
55  void setLayerSet( const QStringList& layerSet );
56 
57  QStringList layerSet() const;
58 
59  void enableAntiAliasing( bool flag ) { mSettings.setFlag( QgsMapSettings::Antialiasing, flag ); }
60 
61  void updateFullExtent();
62 
63  public slots:
64 
65  // ### QGIS 3: make protected
67  void drawExtentRect();
68 
69  // ### QGIS 3: rename so it does not look like getter, make protected
70  void hasCrsTransformEnabled( bool flag );
71 
72  // ### QGIS 3: rename Srs to Crs, make protected
73  void destinationSrsChanged();
74 
75  protected slots:
76  void mapRenderingFinished();
77 
78  protected:
79 
81  void paintEvent( QPaintEvent * pe );
82 
84  void resizeEvent( QResizeEvent * e );
85 
87  void mouseMoveEvent( QMouseEvent * e );
88 
90  void mousePressEvent( QMouseEvent * e );
91 
93  void mouseReleaseEvent( QMouseEvent * e );
94 
96  void updatePanningWidget( const QPoint& pos );
97 
100 
103 
106 
108  QPixmap mPixmap;
109 
112 
115 };
116 
117 #endif
QPoint mPanningCursorOffset
position of cursor inside panning widget
A rectangle specified with double values.
Definition: qgsrectangle.h:35
A widget that displays an overview map.
QgsMapCanvas * mMapCanvas
main map canvas - used to get/set extent
QgsMapRendererQImageJob * mJob
for rendering overview
widget that serves as rectangle showing current extent in overview
Map canvas is a class for displaying all GIS data types on a canvas.
Definition: qgsmapcanvas.h:105
void enableAntiAliasing(bool flag)
QgsPanningWidget * mPanningWidget
widget for panning map in overview
QgsMapSettings mSettings
map settings used for rendering of the overview map
QPixmap mPixmap
pixmap where the map is stored
Intermediate base class adding functionality that allows client to query the rendered image...