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 override
	Returns new instance that is equivalent to this one.
QList< QString >	diagramAttributes () const override
	Returns attribute indices needed for diagram rendering.
QList< QgsDiagramSettings >	diagramSettings () const override
	Returns list with all diagram settings in the renderer.
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 ()
QgsDiagram *	diagram () const
void	renderDiagram (const QgsFeature &feature, QgsRenderContext &c, const QPointF &pos)
void	setDiagram (QgsDiagram *d)
virtual QSizeF	sizeMapUnits (const QgsFeature &feature, const QgsRenderContext &c)
	Returns size of the diagram for a feature in map units.

Protected Member Functions
bool	diagramSettings (const QgsFeature &feature, const QgsRenderContext &c, QgsDiagramSettings &s) override
	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) override
	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	_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.

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.

Definition at line 224 of file qgsdiagramrendererv2.h.

Constructor & Destructor Documentation

QgsSingleCategoryDiagramRenderer::QgsSingleCategoryDiagramRenderer

(

)

Definition at line 385 of file qgsdiagramrendererv2.cpp.

QgsSingleCategoryDiagramRenderer::~QgsSingleCategoryDiagramRenderer

(

)

Definition at line 389 of file qgsdiagramrendererv2.cpp.

Member Function Documentation

QgsDiagramRendererV2 * QgsSingleCategoryDiagramRenderer::clone ( ) const

overridevirtual

Returns new instance that is equivalent to this one.

Note

added in 2.4

Implements QgsDiagramRendererV2.

Definition at line 393 of file qgsdiagramrendererv2.cpp.

QList<QString> QgsSingleCategoryDiagramRenderer::diagramAttributes ( ) const

inlineoverridevirtual

Returns attribute indices needed for diagram rendering.

Implements QgsDiagramRendererV2.

Definition at line 234 of file qgsdiagramrendererv2.h.

QList< QgsDiagramSettings > QgsSingleCategoryDiagramRenderer::diagramSettings ( ) const

overridevirtual

Returns list with all diagram settings in the renderer.

Implements QgsDiagramRendererV2.

Definition at line 410 of file qgsdiagramrendererv2.cpp.

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

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 398 of file qgsdiagramrendererv2.cpp.

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

overrideprotectedvirtual

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

Implements QgsDiagramRendererV2.

Definition at line 405 of file qgsdiagramrendererv2.cpp.

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

overridevirtual

Implements QgsDiagramRendererV2.

Definition at line 417 of file qgsdiagramrendererv2.cpp.

QString QgsSingleCategoryDiagramRenderer::rendererName ( ) const

inlineoverridevirtual

Implements QgsDiagramRendererV2.

Definition at line 232 of file qgsdiagramrendererv2.h.

void QgsSingleCategoryDiagramRenderer::setDiagramSettings ( const QgsDiagramSettings &  s )

inline

Definition at line 236 of file qgsdiagramrendererv2.h.

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

overridevirtual

Implements QgsDiagramRendererV2.

Definition at line 429 of file qgsdiagramrendererv2.cpp.

---

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

• /tmp/buildd/qgis-2.8.2+12wheezy/src/core/qgsdiagramrendererv2.h
• /tmp/buildd/qgis-2.8.2+12wheezy/src/core/qgsdiagramrendererv2.cpp