Renders the diagrams for all features with the same settings. More...

#include <qgsdiagramrendererv2.h>

Inheritance diagram for QgsSingleCategoryDiagramRenderer:

Public Member Functions
	QgsSingleCategoryDiagramRenderer ()

	~QgsSingleCategoryDiagramRenderer ()

QgsSingleCategoryDiagramRenderer *	clone () const override
	Returns new instance that is equivalent to this one. More...

QList< QString >	diagramAttributes () const override
	Returns attribute indices needed for diagram rendering. More...

QList< QgsDiagramSettings >	diagramSettings () const override
	Returns list with all diagram settings in the renderer. More...

QList< QgsLayerTreeModelLegendNode *>	legendItems (QgsLayerTreeLayer *nodeLayer) const override
	Returns list of legend nodes for the diagram. More...

void	readXML (const QDomElement &elem, const QgsVectorLayer *layer) override

QString	rendererName () const override

void	setDiagramSettings (const QgsDiagramSettings &s)

void	writeXML (QDomElement &layerElem, QDomDocument &doc, const QgsVectorLayer *layer) const override

Public Member Functions inherited from QgsDiagramRendererV2
	QgsDiagramRendererV2 ()

virtual	~QgsDiagramRendererV2 ()

bool	attributeLegend () const
	Returns true if renderer will show legend items for diagram attributes. More...

QgsDiagram *	diagram () const

virtual QSet< QString >	referencedFields (const QgsExpressionContext &context=QgsExpressionContext(), const QgsFields &fields=QgsFields()) const
	Returns the set of any fields required for diagram rendering. More...

void	renderDiagram (const QgsFeature &feature, QgsRenderContext &c, QPointF pos) const

void	setAttributeLegend (bool enabled)
	Sets whether the renderer will show legend items for diagram attributes. More...

void	setDiagram (QgsDiagram *d)

void	setSizeLegend (bool enabled)
	Sets whether the renderer will show legend items for diagram sizes. More...

void	setSizeLegendSymbol (QgsMarkerSymbolV2 *symbol)
	Sets the marker symbol used for rendering the diagram size legend. More...

bool	sizeLegend () const
	Returns true if renderer will show legend items for diagram sizes. More...

QgsMarkerSymbolV2 *	sizeLegendSymbol () const
	Returns the marker symbol used for rendering the diagram size legend. More...

virtual QSizeF	sizeMapUnits (const QgsFeature &feature, const QgsRenderContext &c) const
	Returns size of the diagram for a feature in map units. More...

Protected Member Functions
bool	diagramSettings (const QgsFeature &feature, const QgsRenderContext &c, QgsDiagramSettings &s) const override
	Returns diagram settings for a feature (or false if the diagram for the feature is not to be rendered). More...

QSizeF	diagramSize (const QgsFeature &, const QgsRenderContext &c) const override
	Returns size of the diagram (in painter units) or an invalid size in case of error. More...

Protected Member Functions inherited from QgsDiagramRendererV2
	QgsDiagramRendererV2 (const QgsDiagramRendererV2 &other)

void	_readXML (const QDomElement &elem, const QgsVectorLayer *layer)

void	_writeXML (QDomElement &rendererElem, QDomDocument &doc, const QgsVectorLayer *layer) const

void	convertSizeToMapUnits (QSizeF &size, const QgsRenderContext &context) const
	Converts size from mm to map units. More...

QgsDiagramRendererV2 &	operator= (const QgsDiagramRendererV2 &other)

Additional Inherited Members
Static Protected Member Functions inherited from QgsDiagramRendererV2
static int	dpiPaintDevice (const QPainter *)
	Returns the paint device dpi (or -1 in case of error. More...

Protected Attributes inherited from QgsDiagramRendererV2
QgsDiagram *	mDiagram
	Reference to the object that does the real diagram rendering. More...

bool	mShowAttributeLegend
	Whether to show an attribute legend for the diagrams. More...

bool	mShowSizeLegend
	Whether to show a size legend for the diagrams. More...

QScopedPointer< QgsMarkerSymbolV2 >	mSizeLegendSymbol
	Marker symbol to use in size legends. More...

Detailed Description

Renders the diagrams for all features with the same settings.

Definition at line 556 of file qgsdiagramrendererv2.h.

Constructor & Destructor Documentation

◆ QgsSingleCategoryDiagramRenderer()

QgsSingleCategoryDiagramRenderer::QgsSingleCategoryDiagramRenderer ( )

Definition at line 549 of file qgsdiagramrendererv2.cpp.

◆ ~QgsSingleCategoryDiagramRenderer()

QgsSingleCategoryDiagramRenderer::~QgsSingleCategoryDiagramRenderer ( )

Definition at line 553 of file qgsdiagramrendererv2.cpp.

Member Function Documentation

◆ clone()

QgsSingleCategoryDiagramRenderer * QgsSingleCategoryDiagramRenderer::clone ( ) const

overridevirtual

Returns new instance that is equivalent to this one.

Note: added in 2.4

Implements QgsDiagramRendererV2.

Definition at line 557 of file qgsdiagramrendererv2.cpp.

◆ diagramAttributes()

QList<QString> QgsSingleCategoryDiagramRenderer::diagramAttributes ( ) const

inlineoverridevirtual

Returns attribute indices needed for diagram rendering.

Implements QgsDiagramRendererV2.

Definition at line 566 of file qgsdiagramrendererv2.h.

◆ diagramSettings() [1/2]

QList< QgsDiagramSettings > QgsSingleCategoryDiagramRenderer::diagramSettings ( ) const

overridevirtual

Returns list with all diagram settings in the renderer.

Implements QgsDiagramRendererV2.

Definition at line 574 of file qgsdiagramrendererv2.cpp.

◆ diagramSettings() [2/2]

bool QgsSingleCategoryDiagramRenderer::diagramSettings	(	const QgsFeature &	feature,
		const QgsRenderContext &	c,
		QgsDiagramSettings &	s
	)		const

overrideprotectedvirtual

Returns diagram settings for a feature (or false if the diagram for the feature is not to be rendered).

Used internally within renderDiagram()

Parameters

feature	the feature
c	render context
s	out: diagram settings for the feature

Implements QgsDiagramRendererV2.

Definition at line 562 of file qgsdiagramrendererv2.cpp.

◆ diagramSize()

QSizeF QgsSingleCategoryDiagramRenderer::diagramSize	(	const QgsFeature &	features,
		const QgsRenderContext &	c
	)		const

overrideprotectedvirtual

Returns size of the diagram (in painter units) or an invalid size in case of error.

Implements QgsDiagramRendererV2.

Definition at line 569 of file qgsdiagramrendererv2.cpp.

◆ legendItems()

QList< QgsLayerTreeModelLegendNode *> QgsSingleCategoryDiagramRenderer::legendItems ( QgsLayerTreeLayer * nodeLayer ) const

overridevirtual

Returns list of legend nodes for the diagram.

Note: caller is responsible for deletion of QgsLayerTreeModelLegendNodes; added in 2.10

Reimplemented from QgsDiagramRendererV2.

Definition at line 723 of file qgsdiagramrendererv2.cpp.

◆ readXML()

void QgsSingleCategoryDiagramRenderer::readXML	(	const QDomElement &	elem,
		const QgsVectorLayer *	layer
	)

overridevirtual

Implements QgsDiagramRendererV2.

Definition at line 581 of file qgsdiagramrendererv2.cpp.

◆ rendererName()

QString QgsSingleCategoryDiagramRenderer::rendererName ( ) const

inlineoverridevirtual

Implements QgsDiagramRendererV2.

Definition at line 564 of file qgsdiagramrendererv2.h.

◆ setDiagramSettings()

void QgsSingleCategoryDiagramRenderer::setDiagramSettings ( const QgsDiagramSettings & s )

inline

Definition at line 568 of file qgsdiagramrendererv2.h.

◆ writeXML()

void QgsSingleCategoryDiagramRenderer::writeXML	(	QDomElement &	layerElem,
		QDomDocument &	doc,
		const QgsVectorLayer *	layer
	)		const

overridevirtual

Implements QgsDiagramRendererV2.

Definition at line 593 of file qgsdiagramrendererv2.cpp.

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

/tmp/buildd/qgis-2.18.21+99unstable/src/core/qgsdiagramrendererv2.h
/tmp/buildd/qgis-2.18.21+99unstable/src/core/qgsdiagramrendererv2.cpp

Public Member Functions

Protected Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ QgsSingleCategoryDiagramRenderer()

◆ ~QgsSingleCategoryDiagramRenderer()

Member Function Documentation

◆ clone()

◆ diagramAttributes()

◆ diagramSettings() [1/2]

◆ diagramSettings() [2/2]

◆ diagramSize()

◆ legendItems()

◆ readXML()

◆ rendererName()

◆ setDiagramSettings()

◆ writeXML()