QgsTextDiagram Class Reference

#include <qgsdiagram.h>

Inheritance diagram for QgsTextDiagram:

Collaboration diagram for QgsTextDiagram:

List of all members.

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

Public Member Functions
	QgsTextDiagram ()
	~QgsTextDiagram ()
void	renderDiagram (const QgsAttributeMap &att, QgsRenderContext &c, const QgsDiagramSettings &s, const QPointF &position)
	Draws the diagram at the given position (in pixel coordinates)
QString	diagramName () const

Private Member Functions
void	lineEllipseIntersection (const QPointF &lineStart, const QPointF &lineEnd, const QPointF &ellipseMid, double r1, double r2, QList< QPointF > &result) const
	Calculates intersection points between a line and an ellipse.

Private Attributes
Orientation	mOrientation
Shape	mShape
QBrush	mBrush
QPen	mPen

Additional Inherited Members
Protected Member Functions inherited from QgsDiagram
void	setPenWidth (QPen &pen, const QgsDiagramSettings &s, const QgsRenderContext &c)
QSizeF	sizePainterUnits (const QSizeF &size, const QgsDiagramSettings &s, const QgsRenderContext &c)
QFont	scaledFont (const QgsDiagramSettings &s, const QgsRenderContext &c)

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Detailed Description

Definition at line 28 of file qgsdiagram.h.

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Member Enumeration Documentation

enum QgsTextDiagram::Orientation

Enumerator:

Horizontal
Vertical

Definition at line 38 of file qgsdiagram.h.

enum QgsTextDiagram::Shape

Enumerator:

Circle
Rectangle
Triangle

Definition at line 31 of file qgsdiagram.h.

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Constructor & Destructor Documentation

QgsTextDiagram::QgsTextDiagram

(

)

Definition at line 46 of file qgsdiagram.cpp.

References mBrush, and mPen.

QgsTextDiagram::~QgsTextDiagram

(

)

Definition at line 54 of file qgsdiagram.cpp.

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Member Function Documentation

QString QgsTextDiagram::diagramName ( ) const

inlinevirtual

Implements QgsDiagram.

Definition at line 48 of file qgsdiagram.h.

void QgsTextDiagram::lineEllipseIntersection ( const QPointF &  lineStart, const QPointF &  lineEnd, const QPointF &  ellipseMid, double  r1, double  r2, QList< QPointF > &  result  ) const

private

Calculates intersection points between a line and an ellipse.

Returns:

intersection points

Definition at line 195 of file qgsdiagram.cpp.

Referenced by renderDiagram().

void QgsTextDiagram::renderDiagram ( const QgsAttributeMap &  att, QgsRenderContext &  c, const QgsDiagramSettings &  s, const QPointF &  position  )

virtual

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

Implements QgsDiagram.

Definition at line 58 of file qgsdiagram.cpp.

References QgsDiagramSettings::backgroundColor, QgsDiagramSettings::categoryColors, QgsDiagramSettings::categoryIndices, Circle, Horizontal, lineEllipseIntersection(), QgsDiagramSettings::maxScaleDenominator, mBrush, QgsDiagramSettings::minScaleDenominator, mOrientation, mPen, mShape, QgsRenderContext::painter(), QgsDiagramSettings::penColor, Rectangle, QgsRenderContext::rendererScale(), QgsDiagram::scaledFont(), QgsDiagram::setPenWidth(), QgsDiagramSettings::size, and QgsDiagram::sizePainterUnits().

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Member Data Documentation

QBrush QgsTextDiagram::mBrush

private

Definition at line 53 of file qgsdiagram.h.

Referenced by QgsTextDiagram(), and renderDiagram().

Orientation QgsTextDiagram::mOrientation

private

Definition at line 51 of file qgsdiagram.h.

Referenced by renderDiagram().

QPen QgsTextDiagram::mPen

private

Definition at line 54 of file qgsdiagram.h.

Referenced by QgsTextDiagram(), and renderDiagram().

Shape QgsTextDiagram::mShape

private

Definition at line 52 of file qgsdiagram.h.

Referenced by renderDiagram().

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

• /build/buildd/qgis-1.7.4+1.7.5~20120320/src/core/qgsdiagram.h
• /build/buildd/qgis-1.7.4+1.7.5~20120320/src/core/qgsdiagram.cpp