QgsRasterLayerRenderer Class Reference

Implementation of threaded rendering for raster layers. More...

#include <qgsrasterlayerrenderer.h>

Inheritance diagram for QgsRasterLayerRenderer:

Classes
class	Feedback
	Specific internal feedback class to provide preview of raster layer rendering. More...

Public Member Functions
	QgsRasterLayerRenderer (QgsRasterLayer *layer, QgsRenderContext &rendererContext)
	~QgsRasterLayerRenderer ()
virtual QgsFeedback *	feedback () const override
	Access to feedback object of the layer renderer (may be null) More...
virtual bool	render () override
	Do the rendering (based on data stored in the class) More...
Public Member Functions inherited from QgsMapLayerRenderer
	QgsMapLayerRenderer (const QString &layerID)
virtual	~QgsMapLayerRenderer ()
QStringList	errors () const
	Return list of errors (problems) that happened during the rendering. More...
QString	layerID () const
	Get access to the ID of the layer rendered by this class. More...

Protected Attributes
QgsRenderContext &	mContext
Feedback *	mFeedback
	feedback class for cancellation and preview generation More...
const QgsMapToPixel *	mMapToPixel
QPainter *	mPainter
QgsRasterPipe *	mPipe
QgsRasterViewPort *	mRasterViewPort
Protected Attributes inherited from QgsMapLayerRenderer
QStringList	mErrors
QString	mLayerID

Detailed Description

Implementation of threaded rendering for raster layers.

Note

added in 2.4

not available in Python bindings

Definition at line 41 of file qgsrasterlayerrenderer.h.

Constructor & Destructor Documentation

QgsRasterLayerRenderer()

QgsRasterLayerRenderer::QgsRasterLayerRenderer	(	QgsRasterLayer *	layer,
		QgsRenderContext &	rendererContext
	)

Definition at line 24 of file qgsrasterlayerrenderer.cpp.

~QgsRasterLayerRenderer()

QgsRasterLayerRenderer::~QgsRasterLayerRenderer

(

)

Definition at line 194 of file qgsrasterlayerrenderer.cpp.

Member Function Documentation

feedback()

QgsFeedback * QgsRasterLayerRenderer::feedback ( ) const

overridevirtual

Access to feedback object of the layer renderer (may be null)

Note

added in QGIS 2.18

Reimplemented from QgsMapLayerRenderer.

Definition at line 237 of file qgsrasterlayerrenderer.cpp.

render()

bool QgsRasterLayerRenderer::render ( )

overridevirtual

Do the rendering (based on data stored in the class)

Implements QgsMapLayerRenderer.

Definition at line 202 of file qgsrasterlayerrenderer.cpp.

Member Data Documentation

mContext

QgsRenderContext& QgsRasterLayerRenderer::mContext

protected

Definition at line 58 of file qgsrasterlayerrenderer.h.

mFeedback

Feedback* QgsRasterLayerRenderer::mFeedback

protected

feedback class for cancellation and preview generation

Definition at line 80 of file qgsrasterlayerrenderer.h.

mMapToPixel

const QgsMapToPixel* QgsRasterLayerRenderer::mMapToPixel

protected

Definition at line 54 of file qgsrasterlayerrenderer.h.

mPainter

QPainter* QgsRasterLayerRenderer::mPainter

protected

Definition at line 53 of file qgsrasterlayerrenderer.h.

mPipe

QgsRasterPipe* QgsRasterLayerRenderer::mPipe

protected

Definition at line 57 of file qgsrasterlayerrenderer.h.

mRasterViewPort

QgsRasterViewPort* QgsRasterLayerRenderer::mRasterViewPort

protected

Definition at line 55 of file qgsrasterlayerrenderer.h.

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

• /tmp/buildd/qgis-2.18.21+99unstable/src/core/raster/qgsrasterlayerrenderer.h
• /tmp/buildd/qgis-2.18.21+99unstable/src/core/raster/qgsrasterlayerrenderer.cpp