Quantum GIS API Documentation
1.8
|
00001 /*************************************************************************** 00002 qgssinglesymbolrenderer.h - description 00003 ------------------- 00004 begin : Oct 2003 00005 copyright : (C) 2003 by Marco Hugentobler 00006 email : [email protected] 00007 ***************************************************************************/ 00008 00009 /*************************************************************************** 00010 * * 00011 * This program is free software; you can redistribute it and/or modify * 00012 * it under the terms of the GNU General Public License as published by * 00013 * the Free Software Foundation; either version 2 of the License, or * 00014 * (at your option) any later version. * 00015 * * 00016 ***************************************************************************/ 00017 00018 #ifndef QGSSINGLESYMBOLRENDERER_H 00019 #define QGSSINGLESYMBOLRENDERER_H 00020 00021 #include <QMap> 00022 #include "qgsrenderer.h" 00023 #include "qgsrendercontext.h" 00024 00025 00027 class CORE_EXPORT QgsSingleSymbolRenderer: public QgsRenderer 00028 { 00029 public: 00030 QgsSingleSymbolRenderer( QGis::GeometryType type ); 00031 QgsSingleSymbolRenderer( const QgsSingleSymbolRenderer& other ); 00032 QgsSingleSymbolRenderer& operator=( const QgsSingleSymbolRenderer& other ); 00033 virtual ~QgsSingleSymbolRenderer(); 00034 00036 void addSymbol( QgsSymbol* sy ); 00037 /*Returns a pointer to mSymbol*/ 00038 const QgsSymbol* symbol() const; 00039 00042 void renderFeature( QgsRenderContext &renderContext, QgsFeature& f, QImage* img, bool selected, double opacity = 1.0 ); 00043 00049 virtual int readXML( const QDomNode& rnode, QgsVectorLayer& vl ); 00051 /*virtual void writeXML(std::ostream& xml);*/ 00054 virtual bool writeXML( QDomNode & layer_node, QDomDocument & document, const QgsVectorLayer& vl ) const; 00056 bool needsAttributes() const; 00058 QgsAttributeList classificationAttributes() const; 00059 void updateSymbolAttributes(); 00061 virtual QString name() const; 00063 const QList<QgsSymbol*> symbols() const; 00065 QgsRenderer* clone() const; 00066 00069 QgsSymbol* symbolForFeature( const QgsFeature* f ) { Q_UNUSED( f ); return mSymbol0; } 00070 00071 protected: 00073 QgsSymbol *mSymbol0; 00074 QMap<QString, QgsSymbol*> mSymbols; 00076 QgsAttributeList mSymbolAttributes; 00077 }; 00078 00079 inline const QgsSymbol* QgsSingleSymbolRenderer::symbol() const 00080 { 00081 return mSymbol0; 00082 } 00083 00084 inline bool QgsSingleSymbolRenderer::needsAttributes() const 00085 { 00086 return true; 00087 } 00088 00089 #endif