A text based diagram. More...

#include <qgstextdiagram.h>

Inheritance diagram for QgsTextDiagram:

Public Types
enum	Orientation { Horizontal = 0 , Vertical }

enum	Shape { Circle = 0 , Rectangle , Triangle }

Public Member Functions
	QgsTextDiagram ()

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

QString	diagramName () const override
	Gets a descriptive name for this diagram type. More...

QSizeF	diagramSize (const QgsAttributes &attributes, const QgsRenderContext &c, const QgsDiagramSettings &s) override
	Returns the size in map units the diagram will use to render. More...

QSizeF	diagramSize (const QgsFeature &feature, const QgsRenderContext &c, const QgsDiagramSettings &s, const QgsDiagramInterpolationSettings &is) override
	Returns the size in map units the diagram will use to render. Interpolate size. More...

double	legendSize (double value, const QgsDiagramSettings &s, const QgsDiagramInterpolationSettings &is) const override
	Returns the size of the legend item for the diagram corresponding to a specified value. More...

void	renderDiagram (const QgsFeature &feature, QgsRenderContext &c, const QgsDiagramSettings &s, QPointF position) override
	Draws the diagram at the given position (in pixel coordinates) More...

Public Member Functions inherited from QgsDiagram
virtual	~QgsDiagram ()

void	clearCache ()

virtual QgsDiagram *	clone () const =0
	Returns an instance that is equivalent to this one. More...

virtual QString	diagramName () const =0
	Gets a descriptive name for this diagram type. More...

virtual QSizeF	diagramSize (const QgsAttributes &attributes, const QgsRenderContext &c, const QgsDiagramSettings &s)=0
	Returns the size in map units the diagram will use to render. More...

virtual QSizeF	diagramSize (const QgsFeature &feature, const QgsRenderContext &c, const QgsDiagramSettings &s, const QgsDiagramInterpolationSettings &is)=0
	Returns the size in map units the diagram will use to render. Interpolate size. More...

QgsExpression *	getExpression (const QString &expression, const QgsExpressionContext &context)
	Returns a prepared expression for the specified context. More...

virtual double	legendSize (double value, const QgsDiagramSettings &s, const QgsDiagramInterpolationSettings &is) const =0
	Returns the size of the legend item for the diagram corresponding to a specified value. More...

virtual void	renderDiagram (const QgsFeature &feature, QgsRenderContext &c, const QgsDiagramSettings &s, QPointF position)=0
	Draws the diagram at the given position (in pixel coordinates) More...

Additional Inherited Members
Protected Member Functions inherited from QgsDiagram
	QgsDiagram ()=default
	Constructor for QgsDiagram. More...

	QgsDiagram (const QgsDiagram &other)

QFont	scaledFont (const QgsDiagramSettings &s, const QgsRenderContext &c)
	Calculates a size to match the current settings and rendering context. More...

void	setPenWidth (QPen &pen, const QgsDiagramSettings &s, const QgsRenderContext &c)
	Changes the pen width to match the current settings and rendering context. More...

QSizeF	sizeForValue (double value, const QgsDiagramSettings &s, const QgsDiagramInterpolationSettings &is) const
	Returns the scaled size of a diagram for a value, respecting the specified diagram interpolation settings. More...

double	sizePainterUnits (double l, const QgsDiagramSettings &s, const QgsRenderContext &c)
	Calculates a length to match the current settings and rendering context. More...

QSizeF	sizePainterUnits (QSizeF size, const QgsDiagramSettings &s, const QgsRenderContext &c)
	Calculates a size to match the current settings and rendering context. More...

Detailed Description

A text based diagram.

Definition at line 38 of file qgstextdiagram.h.

Member Enumeration Documentation

◆ Orientation

enum QgsTextDiagram::Orientation

Enumerator
Horizontal
Vertical

Definition at line 48 of file qgstextdiagram.h.

◆ Shape

enum QgsTextDiagram::Shape

Enumerator
Circle
Rectangle
Triangle

Definition at line 41 of file qgstextdiagram.h.

Constructor & Destructor Documentation

◆ QgsTextDiagram()

QgsTextDiagram::QgsTextDiagram ( )

Definition at line 22 of file qgstextdiagram.cpp.

Member Function Documentation

◆ clone()

QgsTextDiagram * QgsTextDiagram::clone ( ) const

overridevirtual

Returns an instance that is equivalent to this one.

Since: QGIS 2.4

Implements QgsDiagram.

Definition at line 30 of file qgstextdiagram.cpp.

◆ diagramName()

QString QgsTextDiagram::diagramName ( ) const

overridevirtual

Gets a descriptive name for this diagram type.

Implements QgsDiagram.

Definition at line 69 of file qgstextdiagram.cpp.

◆ diagramSize() [1/2]

QSizeF QgsTextDiagram::diagramSize	(	const QgsAttributes &	attributes,
		const QgsRenderContext &	c,
		const QgsDiagramSettings &	s
	)

overridevirtual

Returns the size in map units the diagram will use to render.

Implements QgsDiagram.

Definition at line 74 of file qgstextdiagram.cpp.

◆ diagramSize() [2/2]

QSizeF QgsTextDiagram::diagramSize	(	const QgsFeature &	feature,
		const QgsRenderContext &	c,
		const QgsDiagramSettings &	s,
		const QgsDiagramInterpolationSettings &	is
	)

overridevirtual

Returns the size in map units the diagram will use to render. Interpolate size.

Implements QgsDiagram.

Definition at line 35 of file qgstextdiagram.cpp.

◆ legendSize()

double QgsTextDiagram::legendSize	(	double	value,
		const QgsDiagramSettings &	s,
		const QgsDiagramInterpolationSettings &	is
	)		const

overridevirtual

Returns the size of the legend item for the diagram corresponding to a specified value.

Parameters

value	value to return legend item size for
s	diagram settings
is	interpolation settings

Since: QGIS 2.16

Implements QgsDiagram.

Definition at line 63 of file qgstextdiagram.cpp.

◆ renderDiagram()

void QgsTextDiagram::renderDiagram	(	const QgsFeature &	feature,
		QgsRenderContext &	c,
		const QgsDiagramSettings &	s,
		QPointF	position
	)

overridevirtual

Draws the diagram at the given position (in pixel coordinates)

Implements QgsDiagram.

Definition at line 82 of file qgstextdiagram.cpp.

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

/build/qgis-3.30.0+99sid/src/core/diagram/qgstextdiagram.h
/build/qgis-3.30.0+99sid/src/core/diagram/qgstextdiagram.cpp

Public Types

Public Member Functions

Additional Inherited Members

Detailed Description

Member Enumeration Documentation

◆ Orientation

◆ Shape

Constructor & Destructor Documentation

◆ QgsTextDiagram()

Member Function Documentation

◆ clone()

◆ diagramName()

◆ diagramSize() [1/2]

◆ diagramSize() [2/2]

◆ legendSize()

◆ renderDiagram()