QGIS API Documentation  3.10.0-A Coruña (6c816b4204)
qgsrasterbandcombobox.h
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1 /***************************************************************************
2  qgsrasterbandcombobox.h
3  -----------------------
4  begin : May 2017
5  copyright : (C) 2017 by Nyall Dawson
6  email : nyall dot dawson 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 QGSRASTERBANDCOMBOBOX_H
17 #define QGSRASTERBANDCOMBOBOX_H
18 
19 #include "qgis_gui.h"
20 #include "qgis_sip.h"
21 #include "raster/qgsrasterlayer.h"
22 #include <QComboBox>
23 
24 class QgsMapLayer;
26 
33 class GUI_EXPORT QgsRasterBandComboBox : public QComboBox
34 {
35  Q_OBJECT
36  Q_PROPERTY( int band READ currentBand WRITE setBand NOTIFY bandChanged )
37 
38  public:
39 
43  QgsRasterBandComboBox( QWidget *parent SIP_TRANSFERTHIS = nullptr );
44 
49  QgsRasterLayer *layer() const;
50 
56  int currentBand() const;
57 
62  bool isShowingNotSetOption() const;
63 
70  void setShowNotSetOption( bool show, const QString &string = QString() );
71 
72  public slots:
73 
79  void setLayer( QgsMapLayer *layer );
80 
85  void setBand( int band );
86 
87  signals:
88 
92  void bandChanged( int band );
93 
94  private:
95 
96  QPointer< QgsRasterLayer > mLayer;
97 
98  bool mShowNotSet = false;
99  QString mNotSetString;
100  int mPrevBand = -1;
101 
102  QString displayBandName( QgsRasterDataProvider *provider, int band ) const;
103 
104 
105 };
106 
107 #endif // QGSRASTERBANDCOMBOBOX_H
Base class for all map layer types.
Definition: qgsmaplayer.h:79
#define SIP_TRANSFERTHIS
Definition: qgis_sip.h:53
This class provides qgis with the ability to render raster datasets onto the mapcanvas.
A combobox widget which displays the bands present in a raster layer.
Base class for raster data providers.