QGIS API Documentation  2.17.0-Master (eef6f05)
Public Types | Public Member Functions | List of all members
QgsTextDiagram Class Reference

#include <qgstextdiagram.h>

Inheritance diagram for QgsTextDiagram:
Inheritance graph
[legend]

Public Types

enum  Orientation { Horizontal = 0, Vertical }
 
enum  Shape { Circle = 0, Rectangle, Triangle }
 

Public Member Functions

 QgsTextDiagram ()
 
 ~QgsTextDiagram ()
 
virtual QgsTextDiagramclone () const override
 Returns an instance that is equivalent to this one. More...
 
QString diagramName () const override
 
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. 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 Q_DECL_DEPRECATED QSizeF diagramSize (const QgsAttributes &attributes, const QgsRenderContext &c, const QgsDiagramSettings &s, const QgsDiagramInterpolationSettings &is)
 
Q_DECL_DEPRECATED QgsExpressiongetExpression (const QString &expression, const QgsFields *fields)
 
QgsExpressiongetExpression (const QString &expression, const QgsExpressionContext &context)
 Returns a prepared expression for the specified context. More...
 
virtual Q_DECL_DEPRECATED void renderDiagram (const QgsAttributes &att, QgsRenderContext &c, const QgsDiagramSettings &s, QPointF position)
 

Additional Inherited Members

- Protected Member Functions inherited from QgsDiagram
 QgsDiagram ()
 
 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...
 
QSizeF sizePainterUnits (QSizeF size, const QgsDiagramSettings &s, const QgsRenderContext &c)
 Calculates a size to match the current settings and rendering context. More...
 
float sizePainterUnits (float l, const QgsDiagramSettings &s, const QgsRenderContext &c)
 Calculates a length to match the current settings and rendering context. More...
 

Detailed Description

Definition at line 35 of file qgstextdiagram.h.

Member Enumeration Documentation

§ Orientation

Enumerator
Horizontal 
Vertical 

Definition at line 45 of file qgstextdiagram.h.

§ Shape

Enumerator
Circle 
Rectangle 
Triangle 

Definition at line 38 of file qgstextdiagram.h.

Constructor & Destructor Documentation

§ QgsTextDiagram()

QgsTextDiagram::QgsTextDiagram ( )

Definition at line 22 of file qgstextdiagram.cpp.

§ ~QgsTextDiagram()

QgsTextDiagram::~QgsTextDiagram ( )

Definition at line 30 of file qgstextdiagram.cpp.

Member Function Documentation

§ clone()

QgsTextDiagram * QgsTextDiagram::clone ( ) const
overridevirtual

Returns an instance that is equivalent to this one.

Note
added in 2.4

Implements QgsDiagram.

Definition at line 34 of file qgstextdiagram.cpp.

§ diagramName()

QString QgsTextDiagram::diagramName ( ) const
inlineoverridevirtual

Implements QgsDiagram.

Definition at line 61 of file qgstextdiagram.h.

§ 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 73 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 39 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
valuevalue to return legend item size for
sdiagram settings
isinterpolation settings
Note
added in QGIS 2.16

Implements QgsDiagram.

Definition at line 67 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 81 of file qgstextdiagram.cpp.


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