QGIS API Documentation  3.21.0-Master (909859188c)
qgslinesymbol.h
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1 /***************************************************************************
2  qgslinesymbol.h
3  ---------------------
4  begin : November 2009
5  copyright : (C) 2009 by Martin Dobias
6  email : wonder dot sk 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 QGSLINESYMBOL_H
17 #define QGSLINESYMBOL_H
18 
19 #include "qgis_core.h"
20 #include "qgis.h"
21 #include "qgssymbol.h"
22 
29 class CORE_EXPORT QgsLineSymbol : public QgsSymbol
30 {
31  public:
32 
37  static QgsLineSymbol *createSimple( const QVariantMap &properties ) SIP_FACTORY;
38 
45 
52  void setWidth( double width );
53 
59  void setWidthUnit( QgsUnitTypes::RenderUnit unit );
60 
61 
72  double width() const;
73 
85  double width( const QgsRenderContext &context ) const;
86 
92  void setDataDefinedWidth( const QgsProperty &property );
93 
101  QgsProperty dataDefinedWidth() const;
102 
115  void renderPolyline( const QPolygonF &points, const QgsFeature *f, QgsRenderContext &context, int layer = -1, bool selected = false );
116 
117  QgsLineSymbol *clone() const override SIP_FACTORY;
118 
119  private:
120 
121  void renderPolylineUsingLayer( QgsLineSymbolLayer *layer, const QPolygonF &points, QgsSymbolRenderContext &context );
122 
123 };
124 
125 
126 #endif // QGSLINESYMBOL_H
127 
The feature class encapsulates a single feature including its unique ID, geometry and a list of field...
Definition: qgsfeature.h:56
A line symbol type, for rendering LineString and MultiLineString geometries.
Definition: qgslinesymbol.h:30
A store for object properties.
Definition: qgsproperty.h:232
Contains information about the context of a rendering operation.
Abstract base class for all rendered symbols.
Definition: qgssymbol.h:38
virtual QgsSymbol * clone() const =0
Returns a deep copy of this symbol.
RenderUnit
Rendering size units.
Definition: qgsunittypes.h:168
#define SIP_TRANSFER
Definition: qgis_sip.h:36
#define SIP_FACTORY
Definition: qgis_sip.h:76
QList< QgsSymbolLayer * > QgsSymbolLayerList
Definition: qgssymbol.h:27