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QgsSingleCategoryDiagramRenderer Class Reference

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

#include <qgsdiagramrendererv2.h>

Inheritance diagram for QgsSingleCategoryDiagramRenderer:
Inheritance graph
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Public Member Functions

 QgsSingleCategoryDiagramRenderer ()
 ~QgsSingleCategoryDiagramRenderer ()
QgsDiagramRendererV2clone () 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< QgsDiagramSettingsdiagramSettings () 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)
QgsDiagramdiagram () 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
QgsDiagrammDiagram
 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 ( )
QgsSingleCategoryDiagramRenderer::~QgsSingleCategoryDiagramRenderer ( )

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
featurethe feature
crender context
sout: 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.


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