QgsVectorLayerRenderer Class Reference

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

#include <qgsvectorlayerrenderer.h>

Inheritance diagram for QgsVectorLayerRenderer:

Public Member Functions
	QgsVectorLayerRenderer (QgsVectorLayer *layer, QgsRenderContext &context)
	~QgsVectorLayerRenderer ()
virtual bool	render () override
	Do the rendering (based on data stored in the class) More...
void	setGeometryCachePointer (QgsGeometryCache *cache)
	where to save the cached geometries 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
QStringList	mAttrNames
QgsGeometryCache *	mCache
QgsRenderContext &	mContext
QgsVectorLayerDiagramProvider *	mDiagramProvider
	used with new labeling engine (QgsLabelingEngineV2): provider for diagrams. More...
bool	mDiagrams
	used with new labeling engine (QgsPalLabeling): whether diagrams are enabled More...
bool	mDrawVertexMarkers
QPainter::CompositionMode	mFeatureBlendMode
QgsFields	mFields
QGis::GeometryType	mGeometryType
bool	mLabeling
	used with old labeling engine (QgsPalLabeling): whether labeling is enabled More...
QgsVectorLayerLabelProvider *	mLabelProvider
	used with new labeling engine (QgsLabelingEngineV2): provider for labels. More...
int	mLayerTransparency
QgsFeatureRendererV2 *	mRendererV2
QgsFeatureIds	mSelectedFeatureIds
bool	mSimplifyGeometry
QgsVectorSimplifyMethod	mSimplifyMethod
QgsVectorLayerFeatureSource *	mSource
bool	mVertexMarkerOnlyForSelection
int	mVertexMarkerSize
int	mVertexMarkerStyle
Protected Attributes inherited from QgsMapLayerRenderer
QStringList	mErrors
QString	mLayerID

Detailed Description

Implementation of threaded rendering for vector layers.

Note

added in 2.4

Definition at line 52 of file qgsvectorlayerrenderer.h.

Constructor & Destructor Documentation

QgsVectorLayerRenderer::QgsVectorLayerRenderer	(	QgsVectorLayer *	layer,
		QgsRenderContext &	context
	)

Definition at line 43 of file qgsvectorlayerrenderer.cpp.

QgsVectorLayerRenderer::~QgsVectorLayerRenderer

(

)

Definition at line 111 of file qgsvectorlayerrenderer.cpp.

Member Function Documentation

bool QgsVectorLayerRenderer::render ( )

overridevirtual

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

Implements QgsMapLayerRenderer.

Definition at line 118 of file qgsvectorlayerrenderer.cpp.

void QgsVectorLayerRenderer::setGeometryCachePointer

(

QgsGeometryCache *

cache

)

where to save the cached geometries

Note

The way how geometries are cached is really suboptimal - this method may be removed in future releases

Definition at line 262 of file qgsvectorlayerrenderer.cpp.

Member Data Documentation

QStringList QgsVectorLayerRenderer::mAttrNames

protected

Definition at line 105 of file qgsvectorlayerrenderer.h.

QgsGeometryCache* QgsVectorLayerRenderer::mCache

protected

Definition at line 97 of file qgsvectorlayerrenderer.h.

QgsRenderContext& QgsVectorLayerRenderer::mContext

protected

Definition at line 87 of file qgsvectorlayerrenderer.h.

QgsVectorLayerDiagramProvider* QgsVectorLayerRenderer::mDiagramProvider

protected

used with new labeling engine (QgsLabelingEngineV2): provider for diagrams.

may be null. no need to delete: if exists it is owned by labeling engine

Definition at line 117 of file qgsvectorlayerrenderer.h.

bool QgsVectorLayerRenderer::mDiagrams

protected

used with new labeling engine (QgsPalLabeling): whether diagrams are enabled

Definition at line 110 of file qgsvectorlayerrenderer.h.

bool QgsVectorLayerRenderer::mDrawVertexMarkers

protected

Definition at line 99 of file qgsvectorlayerrenderer.h.

QPainter::CompositionMode QgsVectorLayerRenderer::mFeatureBlendMode

protected

Definition at line 120 of file qgsvectorlayerrenderer.h.

QgsFields QgsVectorLayerRenderer::mFields

protected

Definition at line 89 of file qgsvectorlayerrenderer.h.

QGis::GeometryType QgsVectorLayerRenderer::mGeometryType

protected

Definition at line 103 of file qgsvectorlayerrenderer.h.

bool QgsVectorLayerRenderer::mLabeling

protected

used with old labeling engine (QgsPalLabeling): whether labeling is enabled

Definition at line 108 of file qgsvectorlayerrenderer.h.

QgsVectorLayerLabelProvider* QgsVectorLayerRenderer::mLabelProvider

protected

used with new labeling engine (QgsLabelingEngineV2): provider for labels.

may be null. no need to delete: if exists it is owned by labeling engine

Definition at line 114 of file qgsvectorlayerrenderer.h.

int QgsVectorLayerRenderer::mLayerTransparency

protected

Definition at line 119 of file qgsvectorlayerrenderer.h.

QgsFeatureRendererV2* QgsVectorLayerRenderer::mRendererV2

protected

Definition at line 95 of file qgsvectorlayerrenderer.h.

QgsFeatureIds QgsVectorLayerRenderer::mSelectedFeatureIds

protected

Definition at line 91 of file qgsvectorlayerrenderer.h.

bool QgsVectorLayerRenderer::mSimplifyGeometry

protected

Definition at line 123 of file qgsvectorlayerrenderer.h.

QgsVectorSimplifyMethod QgsVectorLayerRenderer::mSimplifyMethod

protected

Definition at line 122 of file qgsvectorlayerrenderer.h.

QgsVectorLayerFeatureSource* QgsVectorLayerRenderer::mSource

protected

Definition at line 93 of file qgsvectorlayerrenderer.h.

bool QgsVectorLayerRenderer::mVertexMarkerOnlyForSelection

protected

Definition at line 100 of file qgsvectorlayerrenderer.h.

int QgsVectorLayerRenderer::mVertexMarkerSize

protected

Definition at line 101 of file qgsvectorlayerrenderer.h.

int QgsVectorLayerRenderer::mVertexMarkerStyle

protected

Definition at line 101 of file qgsvectorlayerrenderer.h.

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

• /tmp/buildd/qgis-2.12.0+99unstable/src/core/qgsvectorlayerrenderer.h
• /tmp/buildd/qgis-2.12.0+99unstable/src/core/qgsvectorlayerrenderer.cpp