QGIS API Documentation 3.27.0-Master (a46f227e17)
qgsrasterhistogramwidget.h
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1/***************************************************************************
2 qgsrasterrendererwidget.h
3 ---------------------------
4 begin : July 2012
5 copyright : (C) 2012 by Etienne Tourigny
6 email : etourigny dot dev at gmail dot com
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#ifndef QGSRASTERHISTOGRAMWIDGET_H
18#define QGSRASTERHISTOGRAMWIDGET_H
19
20#include "ui_qgsrasterhistogramwidgetbase.h"
21#include "qgis_sip.h"
22#include "qgis.h"
23
25#include "qgis_gui.h"
26
27class QgsRasterLayer;
29class QwtPlotPicker;
30class QwtPlotMarker;
31class QwtPlotZoomer;
32
33// fix for qwt5/qwt6 QwtDoublePoint vs. QPointF
34typedef QPointF QwtDoublePoint SIP_SKIP;
35
41class GUI_EXPORT QgsRasterHistogramWidget : public QgsMapLayerConfigWidget, private Ui::QgsRasterHistogramWidgetBase
42{
43 Q_OBJECT
44
45 public:
46
50 QgsRasterHistogramWidget( QgsRasterLayer *layer, QWidget *parent SIP_TRANSFERTHIS = nullptr );
51
53 bool histoSaveAsImage( const QString &filename, int width = 600, int height = 600, int quality = -1 );
54
56 void setRendererWidget( const QString &name, QgsRasterRendererWidget *rendererWidget = nullptr );
57
59 void setActive( bool activeFlag );
60
62 bool computeHistogram( bool forceComputeFlag );
63
65 void histoAction( const QString &actionName, bool actionFlag = true );
66
68 void setSelectedBand( int index );
69
70 public slots:
72 void refreshHistogram();
73
74 void apply() override;
75
76 private slots:
78 void mSaveAsImageButton_clicked();
80 void cboHistoBand_currentIndexChanged( int );
82 void applyHistoMin();
83 void applyHistoMax();
85 void btnHistoMin_toggled();
86 void btnHistoMax_toggled();
88 void histoPickerSelected( QPointF );
89
94 void histoPickerSelectedQwt5( QwtDoublePoint ) SIP_SKIP;
96 void histoActionTriggered( QAction * );
98 void updateHistoMarkers();
100 void btnHistoCompute_clicked();
101
102 private:
103
104 enum HistoShowBands
105 {
106 ShowAll = 0,
107 ShowSelected = 1,
108 ShowRGB = 2
109 };
110
112 QgsRasterLayer *mRasterLayer = nullptr;
114 QgsRasterRendererWidget *mRendererWidget = nullptr;
116 QString mRendererName;
117
118 QwtPlotPicker *mHistoPicker = nullptr;
119 QwtPlotZoomer *mHistoZoomer = nullptr;
120 QwtPlotMarker *mHistoMarkerMin = nullptr;
121 QwtPlotMarker *mHistoMarkerMax = nullptr;
122 double mHistoMin;
123 double mHistoMax;
124 QVector<QColor> mHistoColors;
125 bool mHistoShowMarkers;
126 bool mHistoZoomToMinMax;
127 bool mHistoUpdateStyleToMinMax;
128 bool mHistoDrawLines;
129 /* bool mHistoLoadApplyAll; */
130 HistoShowBands mHistoShowBands;
132 QList< int > histoSelectedBands();
134 QList< int > rendererSelectedBands();
135 QPair< QString, QString > rendererMinMax( int bandNo );
136};
137#endif
A panel widget that can be shown in the map style dock.
virtual void apply()=0
Called when changes to the layer need to be made.
Represents a raster layer.
Abstract base class for widgets which configure a QgsRasterRenderer.
#define SIP_TRANSFERTHIS
Definition: qgis_sip.h:53
#define SIP_SKIP
Definition: qgis_sip.h:126
QPointF QwtDoublePoint