QgsSingleCategoryDiagramRenderer Class Reference

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

#include <qgsdiagramrendererv2.h>

Inheritance diagram for QgsSingleCategoryDiagramRenderer:

Public Member Functions
	QgsSingleCategoryDiagramRenderer ()
	~QgsSingleCategoryDiagramRenderer ()
QgsDiagramRendererV2 *	clone () const
	Returns new instance that is equivalent to this one.
QString	rendererName () const
QList< QString >	diagramAttributes () const
	Returns attribute indices needed for diagram rendering.
void	setDiagramSettings (const QgsDiagramSettings &s)
QList< QgsDiagramSettings >	diagramSettings () const
	Returns list with all diagram settings in the renderer.
void	readXML (const QDomElement &elem, const QgsVectorLayer *layer)
void	writeXML (QDomElement &layerElem, QDomDocument &doc, const QgsVectorLayer *layer) const
Public Member Functions inherited from QgsDiagramRendererV2
	QgsDiagramRendererV2 ()
virtual	~QgsDiagramRendererV2 ()
virtual QSizeF	sizeMapUnits (const QgsFeature &feature, const QgsRenderContext &c)
	Returns size of the diagram for a feature in map units.
void	renderDiagram (const QgsFeature &feature, QgsRenderContext &c, const QPointF &pos)
void	setDiagram (QgsDiagram *d)
QgsDiagram *	diagram () const

Protected Member Functions
bool	diagramSettings (const QgsFeature &feature, const QgsRenderContext &c, QgsDiagramSettings &s)
	Returns diagram settings for a feature (or false if the diagram for the feature is not to be rendered).
QSizeF	diagramSize (const QgsFeature &, const QgsRenderContext &c)
	Returns size of the diagram (in painter units) or an invalid size in case of error.
Protected Member Functions inherited from QgsDiagramRendererV2
	QgsDiagramRendererV2 (const QgsDiagramRendererV2 &other)
void	convertSizeToMapUnits (QSizeF &size, const QgsRenderContext &context) const
	Converts size from mm to map units.
void	_readXML (const QDomElement &elem, const QgsVectorLayer *layer)
void	_writeXML (QDomElement &rendererElem, QDomDocument &doc, const QgsVectorLayer *layer) const

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

Detailed Description

Renders the diagrams for all features with the same settings.

Constructor & Destructor Documentation

QgsSingleCategoryDiagramRenderer::QgsSingleCategoryDiagramRenderer

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QgsSingleCategoryDiagramRenderer::~QgsSingleCategoryDiagramRenderer

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Member Function Documentation

QgsDiagramRendererV2 * QgsSingleCategoryDiagramRenderer::clone ( ) const

virtual

Returns new instance that is equivalent to this one.

Note

added in 2.4

Implements QgsDiagramRendererV2.

QList<QString> QgsSingleCategoryDiagramRenderer::diagramAttributes ( ) const

inlinevirtual

Returns attribute indices needed for diagram rendering.

Implements QgsDiagramRendererV2.

QList< QgsDiagramSettings > QgsSingleCategoryDiagramRenderer::diagramSettings ( ) const

virtual

Returns list with all diagram settings in the renderer.

Implements QgsDiagramRendererV2.

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

protectedvirtual

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.

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

protectedvirtual

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

Implements QgsDiagramRendererV2.

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

virtual

Implements QgsDiagramRendererV2.

QString QgsSingleCategoryDiagramRenderer::rendererName ( ) const

inlinevirtual

Implements QgsDiagramRendererV2.

void QgsSingleCategoryDiagramRenderer::setDiagramSettings ( const QgsDiagramSettings &  s )

inline

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

virtual

Implements QgsDiagramRendererV2.

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

• /tmp/buildd/qgis-2.6.0+wheezy1/src/core/qgsdiagramrendererv2.h
• /tmp/buildd/qgis-2.6.0+wheezy1/src/core/qgsdiagramrendererv2.cpp