QGIS API Documentation  2.99.0-Master (b681b7b)
qgsmultibandcolorrendererwidget.h
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1 /***************************************************************************
2  qgsmultibandcolorrendererwidget.h
3  ---------------------------------
4  begin : February 2012
5  copyright : (C) 2012 by Marco Hugentobler
6  email : marco at sourcepole dot ch
7  ***************************************************************************/
8 
9 /***************************************************************************
10  * *
11  * This program is free software; you can redistribute it and/or modify *
12  * it under the terms of the GNU General Public License as published by *
13  * the Free Software Foundation; either version 2 of the License, or *
14  * (at your option) any later version. *
15  * *
16  ***************************************************************************/
17 
18 #ifndef QGSMULTIBANDCOLORRENDERERWIDGET_H
19 #define QGSMULTIBANDCOLORRENDERERWIDGET_H
20 
22 #include "ui_qgsmultibandcolorrendererwidgetbase.h"
23 #include "qgis_gui.h"
24 
28 class QgsRasterLayer;
29 class QLineEdit;
31 
35 class GUI_EXPORT QgsMultiBandColorRendererWidget: public QgsRasterRendererWidget, private Ui::QgsMultiBandColorRendererWidgetBase
36 {
37  Q_OBJECT
38 
39  public:
41  static QgsRasterRendererWidget* create( QgsRasterLayer* layer, const QgsRectangle &extent ) { return new QgsMultiBandColorRendererWidget( layer, extent ); }
42 
43  QgsRasterRenderer* renderer() override;
44  void setMapCanvas( QgsMapCanvas* canvas ) override;
45 
46  void setFromRenderer( const QgsRasterRenderer* r );
47 
48  QString min( int index = 0 ) override;
49  QString max( int index = 0 ) override;
50  void setMin( const QString& value, int index = 0 ) override;
51  void setMax( const QString& value, int index = 0 ) override;
52  int selectedBand( int index = 0 ) override;
53  void doComputations() override;
54  QgsRasterMinMaxWidget* minMaxWidget() override { return mMinMaxWidget; }
55 
56  public slots:
58  void loadMinMax( int bandNo, double min, double max );
59 
60  private slots:
61  //void on_mLoadPushButton_clicked();
62  void onBandChanged( int );
63  void on_mRedMinLineEdit_textChanged( const QString & );
64  void on_mRedMaxLineEdit_textChanged( const QString & );
65  void on_mGreenMinLineEdit_textChanged( const QString & );
66  void on_mGreenMaxLineEdit_textChanged( const QString & );
67  void on_mBlueMinLineEdit_textChanged( const QString & );
68  void on_mBlueMaxLineEdit_textChanged( const QString & );
69 
70  private:
71  void createValidators();
72  void setCustomMinMaxValues( QgsMultiBandColorRenderer* r, const QgsRasterDataProvider* provider, int redBand, int GreenBand,
73  int blueBand );
75  void setMinMaxValue( const QgsContrastEnhancement* ce, QLineEdit* minEdit, QLineEdit* maxEdit );
76  QgsRasterMinMaxWidget * mMinMaxWidget = nullptr;
77  bool mDisableMinMaxWidgetRefresh;
78 
79  void minMaxModified();
80 };
81 
82 #endif // QGSMULTIBANDCOLORRENDERERWIDGET_H
static unsigned index
A rectangle specified with double values.
Definition: qgsrectangle.h:36
This class provides qgis with the ability to render raster datasets onto the mapcanvas.
Map canvas is a class for displaying all GIS data types on a canvas.
Definition: qgsmapcanvas.h:72
virtual void setMapCanvas(QgsMapCanvas *canvas)
Sets the map canvas associated with the widget.
static QgsRasterRendererWidget * create(QgsRasterLayer *layer, const QgsRectangle &extent)
virtual void setMax(const QString &value, int index=0)
virtual QString min(int index=0)
virtual int selectedBand(int index=0)
QgsRasterMinMaxWidget * minMaxWidget() override
Return min/max widget when it exists.
virtual void doComputations()
Load programmatically with current values.
Renderer for multiband images with the color components.
Manipulates raster pixel values so that they enhanceContrast or clip into a specified numerical range...
virtual QString max(int index=0)
virtual void setMin(const QString &value, int index=0)
virtual QgsRasterRenderer * renderer()=0
Raster renderer pipe that applies colors to a raster.
Base class for raster data providers.