QGIS API Documentation 3.39.0-Master (73c886ac97c)
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qgsrasterminmaxwidget.h
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1/***************************************************************************
2 qgsrasterminmaxwidget.h
3 ---------------------------------
4 begin : July 2012
5 copyright : (C) 2012 by Radim Blazek
6 email : radim dot blazek 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
18#ifndef QGSRASTERMINMAXWIDGET_H
19#define QGSRASTERMINMAXWIDGET_H
20
21#include "ui_qgsrasterminmaxwidgetbase.h"
22#include "qgis.h"
23#include "qgsrectangle.h"
24
25#include "qgsraster.h"
28#include "qgis_gui.h"
29
30class QgsMapCanvas;
31class QgsRasterLayer;
32
37class GUI_EXPORT QgsRasterMinMaxWidget: public QWidget, private Ui::QgsRasterMinMaxWidgetBase
38{
39 Q_OBJECT
40 public:
41
43 QgsRasterMinMaxWidget( QgsRasterLayer *layer, QWidget *parent SIP_TRANSFERTHIS = nullptr );
44
51 void setExtent( const QgsRectangle &extent ) { mExtent = extent; }
52
60 void setMapCanvas( QgsMapCanvas *canvas );
61
66 QgsMapCanvas *mapCanvas();
67
68 void setBands( const QList<int> &bands );
69
74 QgsRectangle extent();
75
77 int sampleSize() { return cboAccuracy->currentIndex() == 0 ? 250000 : 0; }
78
80 void setFromMinMaxOrigin( const QgsRasterMinMaxOrigin & );
81
83 QgsRasterMinMaxOrigin minMaxOrigin();
84
86 void hideUpdatedExtent();
87
89 void doComputations();
90
92 void userHasSetManualMinMaxValues();
93
95 bool isCollapsed() const { return mLoadMinMaxValuesGroupBox->isCollapsed(); }
96
98 void setCollapsed( bool b ) { mLoadMinMaxValuesGroupBox->setCollapsed( b ); }
99
100 signals:
101
107
109 void load( int bandNo, double min, double max );
110
111 private slots:
112
113 void mUserDefinedRadioButton_toggled( bool );
114 void mMinMaxRadioButton_toggled( bool b ) { if ( b ) emit widgetChanged(); }
115 void mStdDevRadioButton_toggled( bool b ) { if ( b ) emit widgetChanged(); }
116 void mCumulativeCutRadioButton_toggled( bool b ) { if ( b ) emit widgetChanged(); }
117 void mStatisticsExtentCombo_currentIndexChanged( int ) { emit widgetChanged(); }
118 void mCumulativeCutLowerDoubleSpinBox_valueChanged( double ) { emit widgetChanged(); }
119 void mCumulativeCutUpperDoubleSpinBox_valueChanged( double ) { emit widgetChanged(); }
120 void mStdDevSpinBox_valueChanged( double ) { emit widgetChanged(); }
121 void cboAccuracy_currentIndexChanged( int ) { emit widgetChanged(); }
122
123 private:
124 QgsRasterLayer *mLayer = nullptr;
125 QList<int> mBands;
126 QgsRectangle mExtent;
127
128 QgsMapCanvas *mCanvas = nullptr;
129
130 bool mLastRectangleValid;
131 QgsRectangle mLastRectangle;
132 QgsRasterMinMaxOrigin mLastMinMaxOrigin;
133
134 bool mBandsChanged;
135};
136
137#endif // QGSRASTERMINMAXWIDGET_H
Map canvas is a class for displaying all GIS data types on a canvas.
Represents a raster layer.
This class describes the origin of min/max values.
void setExtent(const QgsRectangle &extent)
Sets the extent to use for minimum and maximum value calculation.
void setCollapsed(bool b)
Sets collapsed state of widget.
void load(int bandNo, double min, double max)
signal emitted when new min/max values are computed from statistics.
bool isCollapsed() const
Returns if the widget is collaped.
int sampleSize()
Returns the selected sample size.
void widgetChanged()
Emitted when something on the widget has changed.
A rectangle specified with double values.
#define SIP_TRANSFERTHIS
Definition qgis_sip.h:53