#include <qgsdiagramrenderer.h>

Inheritance diagram for QgsLinearlyInterpolatedDiagramRenderer:

Public Member Functions
	QgsLinearlyInterpolatedDiagramRenderer ()

	~QgsLinearlyInterpolatedDiagramRenderer () override

QString	classificationAttributeExpression () const

bool	classificationAttributeIsExpression () const

QString	classificationField () const
	Returns the field name used for interpolating the diagram size. More...

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

QgsDataDefinedSizeLegend *	dataDefinedSizeLegend () const
	Returns configuration of appearance of legend. 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...

QSizeF	lowerSize () const

double	lowerValue () const

void	readXml (const QDomElement &elem, const QgsReadWriteContext &context) override
	Reads diagram state from a DOM element. More...

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

QString	rendererName () const override

void	setClassificationAttributeExpression (const QString &expression)

void	setClassificationAttributeIsExpression (bool isExpression)

void	setClassificationField (const QString &field)
	Sets the field name used for interpolating the diagram size. More...

void	setDataDefinedSizeLegend (QgsDataDefinedSizeLegend *settings)
	Configures appearance of legend. More...

void	setDiagramSettings (const QgsDiagramSettings &s)

void	setLowerSize (QSizeF s)

void	setLowerValue (double val)

void	setUpperSize (QSizeF s)

void	setUpperValue (double val)

QSizeF	upperSize () const

double	upperValue () const

void	writeXml (QDomElement &layerElem, QDomDocument &doc, const QgsReadWriteContext &context) const override
	Writes diagram state to a DOM element. More...

Public Member Functions inherited from QgsDiagramRenderer
	QgsDiagramRenderer ()=default
	Constructor for QgsDiagramRenderer. More...

virtual	~QgsDiagramRenderer ()=default

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

QgsDiagram *	diagram () const

void	renderDiagram (const QgsFeature &feature, QgsRenderContext &c, QPointF pos, const QgsPropertyCollection &properties=QgsPropertyCollection()) const
	Renders the diagram for a specified feature at a specific position in the passed render context. More...

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

void	setDiagram (QgsDiagram *d)

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

Protected Member Functions
	QgsLinearlyInterpolatedDiagramRenderer (const QgsLinearlyInterpolatedDiagramRenderer &other)
	Copy constructor. More...

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 QgsDiagramRenderer
	QgsDiagramRenderer (const QgsDiagramRenderer &other)

void	_readXml (const QDomElement &elem, const QgsReadWriteContext &context)
	Reads internal QgsDiagramRenderer state from a DOM element. More...

void	_writeXml (QDomElement &rendererElem, QDomDocument &doc, const QgsReadWriteContext &context) const
	Writes internal QgsDiagramRenderer diagram state to a DOM element. More...

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

QgsDiagramRenderer &	operator= (const QgsDiagramRenderer &other)

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

Protected Attributes inherited from QgsDiagramRenderer
std::unique_ptr< QgsDiagram >	mDiagram
	Reference to the object that does the real diagram rendering. More...

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

Detailed Description

Definition at line 681 of file qgsdiagramrenderer.h.

Constructor & Destructor Documentation

QgsLinearlyInterpolatedDiagramRenderer::QgsLinearlyInterpolatedDiagramRenderer ( )

Definition at line 587 of file qgsdiagramrenderer.cpp.

QgsLinearlyInterpolatedDiagramRenderer::~QgsLinearlyInterpolatedDiagramRenderer ( )

override

Definition at line 600 of file qgsdiagramrenderer.cpp.

QgsLinearlyInterpolatedDiagramRenderer::QgsLinearlyInterpolatedDiagramRenderer ( const QgsLinearlyInterpolatedDiagramRenderer & other )

protected

Copy constructor.

Definition at line 592 of file qgsdiagramrenderer.cpp.

Member Function Documentation

QString QgsLinearlyInterpolatedDiagramRenderer::classificationAttributeExpression ( ) const

inline

Definition at line 726 of file qgsdiagramrenderer.h.

bool QgsLinearlyInterpolatedDiagramRenderer::classificationAttributeIsExpression ( ) const

inline

Definition at line 729 of file qgsdiagramrenderer.h.

QString QgsLinearlyInterpolatedDiagramRenderer::classificationField ( ) const

inline

Returns the field name used for interpolating the diagram size.

See also: setClassificationField()

Since: QGIS 3.0

Definition at line 717 of file qgsdiagramrenderer.h.

QgsLinearlyInterpolatedDiagramRenderer * QgsLinearlyInterpolatedDiagramRenderer::clone ( ) const

overridevirtual

Returns new instance that is equivalent to this one.

Since: QGIS 2.4

Implements QgsDiagramRenderer.

Definition at line 605 of file qgsdiagramrenderer.cpp.

QgsDataDefinedSizeLegend * QgsLinearlyInterpolatedDiagramRenderer::dataDefinedSizeLegend ( ) const

Returns configuration of appearance of legend.

Will return null if no configuration has been set.

Since: QGIS 3.0

Definition at line 815 of file qgsdiagramrenderer.cpp.

QList< QString > QgsLinearlyInterpolatedDiagramRenderer::diagramAttributes ( ) const

overridevirtual

Returns attribute indices needed for diagram rendering.

Implements QgsDiagramRenderer.

Definition at line 624 of file qgsdiagramrenderer.cpp.

QList< QgsDiagramSettings > QgsLinearlyInterpolatedDiagramRenderer::diagramSettings ( ) const

overridevirtual

Returns list with all diagram settings in the renderer.

Implements QgsDiagramRenderer.

Definition at line 610 of file qgsdiagramrenderer.cpp.

bool QgsLinearlyInterpolatedDiagramRenderer::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 QgsDiagramRenderer.

Definition at line 617 of file qgsdiagramrenderer.cpp.

QSizeF QgsLinearlyInterpolatedDiagramRenderer::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 QgsDiagramRenderer.

Definition at line 647 of file qgsdiagramrenderer.cpp.

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

overridevirtual

Returns list of legend nodes for the diagram.

Note: caller is responsible for deletion of QgsLayerTreeModelLegendNodes

Since: QGIS 2.10

Reimplemented from QgsDiagramRenderer.

Definition at line 760 of file qgsdiagramrenderer.cpp.

QSizeF QgsLinearlyInterpolatedDiagramRenderer::lowerSize ( ) const

inline

Definition at line 707 of file qgsdiagramrenderer.h.

double QgsLinearlyInterpolatedDiagramRenderer::lowerValue ( ) const

inline

Definition at line 701 of file qgsdiagramrenderer.h.

void QgsLinearlyInterpolatedDiagramRenderer::readXml	(	const QDomElement &	elem,
		const QgsReadWriteContext &	context
	)

overridevirtual

Reads diagram state from a DOM element.

Subclasses should ensure that _readXml() is called by their readXml implementation to restore the general QgsDiagramRenderer settings.

See also: writeXml()

Implements QgsDiagramRenderer.

Definition at line 652 of file qgsdiagramrenderer.cpp.

QSet< QString > QgsLinearlyInterpolatedDiagramRenderer::referencedFields ( const QgsExpressionContext & context = QgsExpressionContext() ) const

overridevirtual

Returns the set of any fields required for diagram rendering.

Parameters

context expression context the diagrams will be drawn using

Since: QGIS 2.16

Reimplemented from QgsDiagramRenderer.

Definition at line 629 of file qgsdiagramrenderer.cpp.

QString QgsLinearlyInterpolatedDiagramRenderer::rendererName ( ) const

inlineoverridevirtual

Implements QgsDiagramRenderer.

Definition at line 698 of file qgsdiagramrenderer.h.

void QgsLinearlyInterpolatedDiagramRenderer::setClassificationAttributeExpression ( const QString & expression )

inline

Definition at line 727 of file qgsdiagramrenderer.h.

void QgsLinearlyInterpolatedDiagramRenderer::setClassificationAttributeIsExpression ( bool isExpression )

inline

Definition at line 730 of file qgsdiagramrenderer.h.

void QgsLinearlyInterpolatedDiagramRenderer::setClassificationField ( const QString & field )

inline

Sets the field name used for interpolating the diagram size.

See also: classificationField()

Since: QGIS 3.0

Definition at line 724 of file qgsdiagramrenderer.h.

void QgsLinearlyInterpolatedDiagramRenderer::setDataDefinedSizeLegend ( QgsDataDefinedSizeLegend * settings )

Configures appearance of legend.

Takes ownership of the passed settings objects.

Since: QGIS 3.0

Definition at line 809 of file qgsdiagramrenderer.cpp.

void QgsLinearlyInterpolatedDiagramRenderer::setDiagramSettings ( const QgsDiagramSettings & s )

inline

Definition at line 692 of file qgsdiagramrenderer.h.

void QgsLinearlyInterpolatedDiagramRenderer::setLowerSize ( QSizeF s )

inline

Definition at line 706 of file qgsdiagramrenderer.h.

void QgsLinearlyInterpolatedDiagramRenderer::setLowerValue ( double val )

inline

Definition at line 700 of file qgsdiagramrenderer.h.

void QgsLinearlyInterpolatedDiagramRenderer::setUpperSize ( QSizeF s )

inline

Definition at line 709 of file qgsdiagramrenderer.h.

void QgsLinearlyInterpolatedDiagramRenderer::setUpperValue ( double val )

inline

Definition at line 703 of file qgsdiagramrenderer.h.

QSizeF QgsLinearlyInterpolatedDiagramRenderer::upperSize ( ) const

inline

Definition at line 710 of file qgsdiagramrenderer.h.

double QgsLinearlyInterpolatedDiagramRenderer::upperValue ( ) const

inline

Definition at line 704 of file qgsdiagramrenderer.h.

void QgsLinearlyInterpolatedDiagramRenderer::writeXml	(	QDomElement &	layerElem,
		QDomDocument &	doc,
		const QgsReadWriteContext &	context
	)		const

overridevirtual

Writes diagram state to a DOM element.

Subclasses should ensure that _writeXml() is called by their writeXml implementation to save the general QgsDiagramRenderer settings.

See also: readXml()

Implements QgsDiagramRenderer.

Definition at line 703 of file qgsdiagramrenderer.cpp.

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

/build/qgis-3.4.15+24xenial/src/core/qgsdiagramrenderer.h
/build/qgis-3.4.15+24xenial/src/core/qgsdiagramrenderer.cpp

Public Member Functions

Protected Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation