QGIS API Documentation  3.21.0-Master (5b68dc587e)
qgssinglebandpseudocolorrendererwidget.h
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1 /***************************************************************************
2  qgssinglebandpseudocolorrendererwidget.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 QGSSINGLEBANDCOLORRENDERERWIDGET_H
19 #define QGSSINGLEBANDCOLORRENDERERWIDGET_H
20 
22 #include "qgis_sip.h"
23 #include "qgscolorrampshader.h"
24 #include "qgsrasterrenderer.h"
25 #include "ui_qgssinglebandpseudocolorrendererwidgetbase.h"
26 #include "qgis_gui.h"
27 
29 
38 class GUI_EXPORT QgsSingleBandPseudoColorRendererWidget: public QgsRasterRendererWidget, private Ui::QgsSingleBandPseudoColorRendererWidgetBase
39 {
40 
41  Q_OBJECT
42 
43  public:
44 
47 
49  static QgsRasterRendererWidget *create( QgsRasterLayer *layer, const QgsRectangle &extent ) SIP_FACTORY { return new QgsSingleBandPseudoColorRendererWidget( layer, extent ); }
50 
51  QgsRasterRenderer *renderer() override;
52  void setMapCanvas( QgsMapCanvas *canvas ) override;
53  void doComputations() override;
55 
57  int currentBand() const;
58 
60  void setFromRenderer( const QgsRasterRenderer *r );
61 
62  public slots:
64  void loadMinMax( int bandNo, double min, double max );
66  void loadMinMaxFromTree( double min, double max );
67 
68  private slots:
69  void bandChanged();
70  void mMinLineEdit_textChanged( const QString & );
71  void mMaxLineEdit_textChanged( const QString & );
72  void mMinLineEdit_textEdited( const QString &text );
73  void mMaxLineEdit_textEdited( const QString &text );
74 
75  private:
76  void setLineEditValue( QLineEdit *lineEdit, double value );
77  double lineEditValue( const QLineEdit *lineEdit ) const;
78 
79  QgsRasterMinMaxWidget *mMinMaxWidget = nullptr;
80  int mMinMaxOrigin;
81 
82  void minMaxModified();
83 
84  // Convert min/max to localized display value with maximum precision for the current data type
85  QString displayValueWithMaxPrecision( const double value );
86 
87  friend class TestQgsSingleBandPseudoColorRendererWidget;
88 };
89 
90 #endif // QGSSINGLEBANDCOLORRENDERERWIDGET_H
Map canvas is a class for displaying all GIS data types on a canvas.
Definition: qgsmapcanvas.h:88
Represents a raster layer.
virtual void setMapCanvas(QgsMapCanvas *canvas)
Sets the map canvas associated with the widget.
virtual QgsRasterRenderer * renderer()=0
virtual void doComputations()
Load programmatically with current values.
virtual QgsRasterMinMaxWidget * minMaxWidget()
Returns min/max widget when it exists.
Raster renderer pipe that applies colors to a raster.
A rectangle specified with double values.
Definition: qgsrectangle.h:42
Single band pseudo color renderer widget consists of a color ramp shader widget, a raster min max wid...
static QgsRasterRendererWidget * create(QgsRasterLayer *layer, const QgsRectangle &extent)
Creates new raster renderer widget.
#define SIP_FACTORY
Definition: qgis_sip.h:76