QGIS API Documentation
3.0.2-Girona (307d082)
src
core
diagram
qgstextdiagram.h
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/***************************************************************************
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qgstextdiagram.h
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---------------------
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begin : March 2011
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copyright : (C) 2011 by Marco Hugentobler
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email : marco dot hugentobler at sourcepole dot ch
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***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************/
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#ifndef QGSTEXTDIAGRAM_H
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#define QGSTEXTDIAGRAM_H
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#define DIAGRAM_NAME_TEXT "Text"
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#include "qgis_core.h"
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#include "
qgis.h
"
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#include "
qgsdiagram.h
"
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#include <QPen>
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#include <QBrush>
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class
QPainter;
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class
QPointF;
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class
QgsDiagramSettings
;
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class
QgsDiagramInterpolationSettings
;
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class
QgsFeature
;
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class
QgsRenderContext
;
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class
CORE_EXPORT
QgsTextDiagram
:
public
QgsDiagram
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{
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public
:
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enum
Shape
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{
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Circle = 0,
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Rectangle
,
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Triangle
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};
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enum
Orientation
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{
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Horizontal = 0,
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Vertical
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};
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QgsTextDiagram
();
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QgsTextDiagram
*
clone
() const override
SIP_FACTORY
;
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void
renderDiagram( const
QgsFeature
&feature,
QgsRenderContext
&c, const
QgsDiagramSettings
&s, QPointF position ) override;
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QSizeF diagramSize( const
QgsAttributes
&attributes, const
QgsRenderContext
&c, const
QgsDiagramSettings
&s ) override;
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QSizeF diagramSize( const
QgsFeature
&feature, const
QgsRenderContext
&c, const
QgsDiagramSettings
&s, const
QgsDiagramInterpolationSettings
&is ) override;
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double
legendSize(
double
value, const
QgsDiagramSettings
&s, const
QgsDiagramInterpolationSettings
&is ) const override;
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QString diagramName() const override;
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private:
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Orientation
mOrientation = Vertical;
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Shape
mShape = Circle;
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QBrush mBrush;
//transparent brush
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QPen mPen;
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void
lineEllipseIntersection( QPointF lineStart, QPointF lineEnd, QPointF ellipseMid,
double
r1,
double
r2, QList<QPointF> &result ) const;
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};
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#endif // QGSTEXTDIAGRAM_H
QgsTextDiagram::Shape
Shape
Definition:
qgstextdiagram.h:40
QgsTextDiagram::Rectangle
Definition:
qgstextdiagram.h:43
QgsFeature
The feature class encapsulates a single feature including its id, geometry and a list of field/values...
Definition:
qgsfeature.h:62
qgsdiagram.h
SIP_FACTORY
#define SIP_FACTORY
Definition:
qgis_sip.h:69
QgsTextDiagram
Definition:
qgstextdiagram.h:37
QgsDiagram
Base class for all diagram types.
Definition:
qgsdiagram.h:38
QgsTextDiagram::Orientation
Orientation
Definition:
qgstextdiagram.h:47
QgsDiagram::clone
virtual QgsDiagram * clone() const =0
Returns an instance that is equivalent to this one.
QgsDiagramInterpolationSettings
Additional diagram settings for interpolated size rendering.
Definition:
qgsdiagramrenderer.h:487
QgsRenderContext
Contains information about the context of a rendering operation.
Definition:
qgsrendercontext.h:51
qgis.h
QgsAttributes
A vector of attributes.
Definition:
qgsattributes.h:58
QgsDiagramSettings
Stores the settings for rendering a single diagram.
Definition:
qgsdiagramrenderer.h:376
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