QGIS API Documentation 3.37.0-Master (49cede7946b)
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qgsstackedbardiagram.h
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1/***************************************************************************
2 qgsstackedbardiagram.h
3 ---------------------
4 begin : November 2019
5 copyright : (C) 2019 by Nyall Dawson
6 email : nyall dot dawson at gmail dot com
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 QGSSTACKEDBARDIAGRAM_H
17#define QGSSTACKEDBARDIAGRAM_H
18
19#define DIAGRAM_NAME_STACKED "Stacked"
20
21#include "qgis_core.h"
22#include "qgis.h"
23#include "qgsdiagram.h"
24#include <QPen>
25#include <QBrush>
26
27class QgsFeature;
28class QPainter;
29class QPointF;
32
34
44{
45 public:
47
48 QgsStackedBarDiagram *clone() const override SIP_FACTORY;
49
50 void renderDiagram( const QgsFeature &feature, QgsRenderContext &c, const QgsDiagramSettings &s, QPointF position ) override;
51
52 QSizeF diagramSize( const QgsAttributes &attributes, const QgsRenderContext &c, const QgsDiagramSettings &s ) override;
53 QSizeF diagramSize( const QgsFeature &feature, const QgsRenderContext &c, const QgsDiagramSettings &s, const QgsDiagramInterpolationSettings &is ) override;
54 double legendSize( double value, const QgsDiagramSettings &s, const QgsDiagramInterpolationSettings &is ) const override;
55 QString diagramName() const override;
56
57 private:
58 QBrush mCategoryBrush;
59 QPen mPen;
60 bool mApplySpacingAdjust = false;
61};
62
63
64#endif // QGSSTACKEDBARDIAGRAM_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 QString diagramName() const =0
Gets a descriptive name for this diagram type.
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.
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.
virtual QgsDiagram * clone() const =0
Returns an instance that is equivalent to this one.
virtual void renderDiagram(const QgsFeature &feature, QgsRenderContext &c, const QgsDiagramSettings &s, QPointF position)=0
Draws the diagram at the given position (in pixel coordinates)
The feature class encapsulates a single feature including its unique ID, geometry and a list of field...
Definition qgsfeature.h:58
Contains information about the context of a rendering operation.
A stacked bar chart diagram.
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_FACTORY
Definition qgis_sip.h:76
#define SIP_NODEFAULTCTORS
Definition qgis_sip.h:101