QGIS API Documentation 3.40.0-Bratislava (b56115d8743)
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qgshistogramdiagram.h
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1/***************************************************************************
2 qgshistogramdiagram.h
3 ---------------------
4 begin : August 2012
5 copyright : (C) 2012 by Matthias Kuhn
6 email : matthias at opengis dot ch
7 ***************************************************************************
8 * *
9 * This program is free software; you can redistribute it and/or modify *
10 * it under the terms of the GNU General Public License as published by *
11 * the Free Software Foundation; either version 2 of the License, or *
12 * (at your option) any later version. *
13 * *
14 ***************************************************************************/
15
16#ifndef QGSHISTOGRAMDIAGRAM_H
17#define QGSHISTOGRAMDIAGRAM_H
18
19#include "qgis_core.h"
20#include "qgis.h"
21#include "qgsdiagram.h"
22#include <QPen>
23#include <QBrush>
24
25class QgsFeature;
26class QPainter;
27class QPointF;
30
32
39{
40 public:
41 static const QString DIAGRAM_NAME_HISTOGRAM SIP_SKIP;
42
44
45 QgsHistogramDiagram *clone() const override SIP_FACTORY;
46
47 void renderDiagram( const QgsFeature &feature, QgsRenderContext &c, const QgsDiagramSettings &s, QPointF position ) override;
48
49 QSizeF diagramSize( const QgsAttributes &attributes, const QgsRenderContext &c, const QgsDiagramSettings &s ) override;
50 QSizeF diagramSize( const QgsFeature &feature, const QgsRenderContext &c, const QgsDiagramSettings &s, const QgsDiagramInterpolationSettings &interpolationSettings ) override;
51 double legendSize( double value, const QgsDiagramSettings &s, const QgsDiagramInterpolationSettings &interpolationSettings ) const override;
52 QString diagramName() const override;
53
54 private:
55 QBrush mCategoryBrush;
56 QPen mPen;
57 double mScaleFactor;
58};
59
60
61#endif // QGSHISTOGRAMDIAGRAM_H
A vector of attributes.
Additional diagram settings for interpolated size rendering.
Stores the settings for rendering a single diagram.
Base class for all diagram types.
Definition qgsdiagram.h:40
virtual QgsDiagram * clone() const =0
Returns an instance that is equivalent to this one.
The feature class encapsulates a single feature including its unique ID, geometry and a list of field...
Definition qgsfeature.h:58
A histogram style diagram.
Contains information about the context of a rendering operation.
As part of the API refactoring and improvements which landed in the Processing API was substantially reworked from the x version This was done in order to allow much of the underlying Processing framework to be ported into c
#define SIP_SKIP
Definition qgis_sip.h:126
#define SIP_FACTORY
Definition qgis_sip.h:76
#define SIP_NODEFAULTCTORS
Definition qgis_sip.h:101