QgsSingleCategoryDiagramRenderer Class Reference

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

#include <qgsdiagramrendererv2.h>

Inheritance diagram for QgsSingleCategoryDiagramRenderer:

Collaboration diagram for QgsSingleCategoryDiagramRenderer:

Public Member Functions
	QgsSingleCategoryDiagramRenderer ()
	~QgsSingleCategoryDiagramRenderer ()
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
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

Private Attributes
QgsDiagramSettings	mSettings

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 218 of file qgsdiagramrendererv2.h.

Constructor & Destructor Documentation

QgsSingleCategoryDiagramRenderer::QgsSingleCategoryDiagramRenderer

(

)

Definition at line 359 of file qgsdiagramrendererv2.cpp.

QgsSingleCategoryDiagramRenderer::~QgsSingleCategoryDiagramRenderer

(

)

Definition at line 363 of file qgsdiagramrendererv2.cpp.

Member Function Documentation

QList<QString> QgsSingleCategoryDiagramRenderer::diagramAttributes ( ) const

inlinevirtual

Returns attribute indices needed for diagram rendering.

Implements QgsDiagramRendererV2.

Definition at line 226 of file qgsdiagramrendererv2.h.

QList< QgsDiagramSettings > QgsSingleCategoryDiagramRenderer::diagramSettings ( ) const

virtual

Returns list with all diagram settings in the renderer.

Implements QgsDiagramRendererV2.

Definition at line 379 of file qgsdiagramrendererv2.cpp.

References mSettings.

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.

Definition at line 367 of file qgsdiagramrendererv2.cpp.

References mSettings.

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.

Definition at line 374 of file qgsdiagramrendererv2.cpp.

References QgsFeature::attributes(), QgsDiagramRendererV2::mDiagram, and mSettings.

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

virtual

Implements QgsDiagramRendererV2.

Definition at line 386 of file qgsdiagramrendererv2.cpp.

References QgsDiagramRendererV2::_readXML(), mSettings, and QgsDiagramSettings::readXML().

QString QgsSingleCategoryDiagramRenderer::rendererName ( ) const

inlinevirtual

Implements QgsDiagramRendererV2.

Definition at line 224 of file qgsdiagramrendererv2.h.

void QgsSingleCategoryDiagramRenderer::setDiagramSettings ( const QgsDiagramSettings &  s )

inline

Definition at line 228 of file qgsdiagramrendererv2.h.

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

virtual

Implements QgsDiagramRendererV2.

Definition at line 398 of file qgsdiagramrendererv2.cpp.

References QgsDiagramRendererV2::_writeXML(), mSettings, and QgsDiagramSettings::writeXML().

Member Data Documentation

QgsDiagramSettings QgsSingleCategoryDiagramRenderer::mSettings

private

Definition at line 241 of file qgsdiagramrendererv2.h.

Referenced by diagramSettings(), diagramSize(), readXML(), and writeXML().

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

• /tmp/buildd/qgis-2.2.0+wheezy1/src/core/qgsdiagramrendererv2.h
• /tmp/buildd/qgis-2.2.0+wheezy1/src/core/qgsdiagramrendererv2.cpp