QgsRasterRendererWidget Class Reference

Abstract base class for widgets which configure a QgsRasterRenderer. More...

#include <qgsrasterrendererwidget.h>

Inheritance diagram for QgsRasterRendererWidget:

Signals
void	widgetChanged ()
	Emitted when something on the widget has changed.

Public Member Functions
	QgsRasterRendererWidget (QgsRasterLayer *layer, const QgsRectangle &extent)
virtual QgsContrastEnhancement::ContrastEnhancementAlgorithm	contrastEnhancementAlgorithm () const
	Returns the contrast enhancement algorithm to be used by the raster renderer.
virtual void	doComputations ()
	Load programmatically with current values.
QgsMapCanvas *	mapCanvas ()
	Returns the map canvas associated with the widget.
virtual QString	max (int index=0)
virtual QString	min (int index=0)
virtual QgsRasterMinMaxWidget *	minMaxWidget ()
	Returns min/max widget when it exists.
const QgsRasterLayer *	rasterLayer () const
	Returns the raster layer associated with the widget.
virtual QgsRasterRenderer *	renderer ()=0
	Creates a new renderer, using the properties defined in the widget.
virtual int	selectedBand (int index=0)
virtual void	setContrastEnhancementAlgorithm (QgsContrastEnhancement::ContrastEnhancementAlgorithm algorithm)
	Sets the contrast enhancement algorithm to be used by the raster renderer.
virtual void	setMapCanvas (QgsMapCanvas *canvas)
	Sets the map canvas associated with the widget.
virtual void	setMax (const QString &value, int index=0)
virtual void	setMin (const QString &value, int index=0)
void	setRasterLayer (QgsRasterLayer *layer)
	Sets the raster layer associated with the widget.
virtual void	setStdDev (const QString &value)
virtual QString	stdDev ()

Protected Attributes
QgsMapCanvas *	mCanvas = nullptr
	Associated map canvas.
QgsRectangle	mExtent
	Current extent.
QgsRasterLayer *	mRasterLayer = nullptr

Detailed Description

Abstract base class for widgets which configure a QgsRasterRenderer.

Definition at line 39 of file qgsrasterrendererwidget.h.

Constructor & Destructor Documentation

QgsRasterRendererWidget()

QgsRasterRendererWidget::QgsRasterRendererWidget ( QgsRasterLayer *  layer, const QgsRectangle &  extent  )

inline

Definition at line 46 of file qgsrasterrendererwidget.h.

Member Function Documentation

contrastEnhancementAlgorithm()

virtual QgsContrastEnhancement::ContrastEnhancementAlgorithm QgsRasterRendererWidget::contrastEnhancementAlgorithm ( ) const

inlinevirtual

Returns the contrast enhancement algorithm to be used by the raster renderer.

Since

QGIS 3.26

Reimplemented in QgsMultiBandColorRendererWidget, and QgsSingleBandGrayRendererWidget.

Definition at line 104 of file qgsrasterrendererwidget.h.

doComputations()

virtual void QgsRasterRendererWidget::doComputations ( )

inlinevirtual

Load programmatically with current values.

Reimplemented in QgsMultiBandColorRendererWidget, QgsSingleBandGrayRendererWidget, and QgsSingleBandPseudoColorRendererWidget.

Definition at line 95 of file qgsrasterrendererwidget.h.

mapCanvas()

QgsMapCanvas * QgsRasterRendererWidget::mapCanvas

(

)

Returns the map canvas associated with the widget.

See also

setMapCanvas()

Definition at line 28 of file qgsrasterrendererwidget.cpp.

max()

virtual QString QgsRasterRendererWidget::max ( int  index = 0 )

inlinevirtual

Reimplemented in QgsMultiBandColorRendererWidget, QgsSingleBandGrayRendererWidget, and QgsSingleBandPseudoColorRendererWidget.

Definition at line 87 of file qgsrasterrendererwidget.h.

min()

virtual QString QgsRasterRendererWidget::min ( int  index = 0 )

inlinevirtual

Reimplemented in QgsMultiBandColorRendererWidget, QgsSingleBandGrayRendererWidget, and QgsSingleBandPseudoColorRendererWidget.

Definition at line 86 of file qgsrasterrendererwidget.h.

minMaxWidget()

virtual QgsRasterMinMaxWidget * QgsRasterRendererWidget::minMaxWidget ( )

inlinevirtual

Returns min/max widget when it exists.

Reimplemented in QgsMultiBandColorRendererWidget, QgsSingleBandGrayRendererWidget, and QgsSingleBandPseudoColorRendererWidget.

Definition at line 98 of file qgsrasterrendererwidget.h.

rasterLayer()

const QgsRasterLayer * QgsRasterRendererWidget::rasterLayer ( ) const

inline

Returns the raster layer associated with the widget.

See also

setRasterLayer()

Definition at line 70 of file qgsrasterrendererwidget.h.

renderer()

virtual QgsRasterRenderer * QgsRasterRendererWidget::renderer ( )

pure virtual

Creates a new renderer, using the properties defined in the widget.

The caller takes ownership of the returned renderer.

Implemented in QgsHillshadeRendererWidget, QgsMultiBandColorRendererWidget, QgsPalettedRendererWidget, QgsRasterContourRendererWidget, QgsRasterSingleColorRendererWidget, QgsSingleBandGrayRendererWidget, and QgsSingleBandPseudoColorRendererWidget.

selectedBand()

virtual int QgsRasterRendererWidget::selectedBand ( int  index = 0 )

inlinevirtual

Reimplemented in QgsMultiBandColorRendererWidget, QgsSingleBandGrayRendererWidget, and QgsSingleBandPseudoColorRendererWidget.

Definition at line 92 of file qgsrasterrendererwidget.h.

setContrastEnhancementAlgorithm()

virtual void QgsRasterRendererWidget::setContrastEnhancementAlgorithm ( QgsContrastEnhancement::ContrastEnhancementAlgorithm  algorithm )

inlinevirtual

Sets the contrast enhancement algorithm to be used by the raster renderer.

Since

QGIS 3.26

Reimplemented in QgsMultiBandColorRendererWidget, and QgsSingleBandGrayRendererWidget.

Definition at line 110 of file qgsrasterrendererwidget.h.

setMapCanvas()

void QgsRasterRendererWidget::setMapCanvas ( QgsMapCanvas *  canvas )

virtual

Sets the map canvas associated with the widget.

This allows the widget to retrieve the current map extent and other properties from the canvas.

Parameters

canvas

map canvas

See also

mapCanvas()

Reimplemented in QgsMultiBandColorRendererWidget, QgsSingleBandGrayRendererWidget, and QgsSingleBandPseudoColorRendererWidget.

Definition at line 23 of file qgsrasterrendererwidget.cpp.

setMax()

virtual void QgsRasterRendererWidget::setMax ( const QString &  value, int  index = 0  )

inlinevirtual

Reimplemented in QgsMultiBandColorRendererWidget, QgsSingleBandGrayRendererWidget, and QgsSingleBandPseudoColorRendererWidget.

Definition at line 89 of file qgsrasterrendererwidget.h.

setMin()

virtual void QgsRasterRendererWidget::setMin ( const QString &  value, int  index = 0  )

inlinevirtual

Reimplemented in QgsMultiBandColorRendererWidget, QgsSingleBandGrayRendererWidget, and QgsSingleBandPseudoColorRendererWidget.

Definition at line 88 of file qgsrasterrendererwidget.h.

setRasterLayer()

void QgsRasterRendererWidget::setRasterLayer ( QgsRasterLayer *  layer )

inline

Sets the raster layer associated with the widget.

See also

rasterLayer()

Definition at line 63 of file qgsrasterrendererwidget.h.

setStdDev()

virtual void QgsRasterRendererWidget::setStdDev ( const QString &  value )

inlinevirtual

Definition at line 91 of file qgsrasterrendererwidget.h.

stdDev()

virtual QString QgsRasterRendererWidget::stdDev ( )

inlinevirtual

Definition at line 90 of file qgsrasterrendererwidget.h.

widgetChanged

void QgsRasterRendererWidget::widgetChanged ( )

signal

Emitted when something on the widget has changed.

All widgets will fire this event to notify of an internal change.

Member Data Documentation

mCanvas

QgsMapCanvas* QgsRasterRendererWidget::mCanvas = nullptr

protected

Associated map canvas.

Definition at line 127 of file qgsrasterrendererwidget.h.

mExtent

QgsRectangle QgsRasterRendererWidget::mExtent

protected

Current extent.

Definition at line 124 of file qgsrasterrendererwidget.h.

mRasterLayer

QgsRasterLayer* QgsRasterRendererWidget::mRasterLayer = nullptr

protected

Definition at line 121 of file qgsrasterrendererwidget.h.

---

The documentation for this class was generated from the following files:

• /build/qgis-3.40.0+99sid/src/gui/raster/qgsrasterrendererwidget.h
• /build/qgis-3.40.0+99sid/src/gui/raster/qgsrasterrendererwidget.cpp