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86 lines
3.0 KiB
Plaintext
86 lines
3.0 KiB
Plaintext
/**This class contains the information for graduate symbol rendering*/
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class QgsGraduatedSymbolRenderer : QgsRenderer
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{
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%TypeHeaderCode
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#include <qgsgraduatedsymbolrenderer.h>
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%End
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public:
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enum Mode
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{
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EqualInterval,
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Quantile,
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Empty
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};
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QgsGraduatedSymbolRenderer(QGis::GeometryType type);
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QgsGraduatedSymbolRenderer(const QgsGraduatedSymbolRenderer& other);
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virtual ~QgsGraduatedSymbolRenderer();
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/** Get the mode - which is only really used to be able to reinstate
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* the graduated dialog properties properly, so we
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* dont do anything else besides accessors and mutators in
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* this class.
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*/
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const Mode mode() const;
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/** Set the mode - which is only really used to be able to reinstate
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* the graduated dialog properties properly, so we
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* dont do anything else besides accessors and mutators in
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* this class.
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*/
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void setMode( Mode theMode );
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/**Adds a new item
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\param sy a pointer to the QgsSymbol to be inserted. It has to be created using the new operator and is automatically destroyed when 'removeItems' is called or when this object is destroyed*/
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void addSymbol(QgsSymbol* sy /Transfer/);
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/**Returns the number of the classification field*/
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int classificationField() const;
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/**Removes all symbols*/
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void removeSymbols();
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/** Determines if a feature will be rendered or not
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@param f a pointer to the feature to determine if rendering will happen*/
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bool willRenderFeature(QgsFeature *f);
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/**Renders an OGRFeature
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\param p a painter (usually the one from the current map canvas)
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\param f a pointer to a feature to render
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\param t the transform object containing the information how to transform the map coordinates to screen coordinates*/
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void renderFeature(QPainter* p, QgsFeature& f, QImage* img, bool selected, double widthScale = 1.0, double rasterScaleFactor = 1.0);
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/**Sets the number of the classicifation field
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\param field the number of the field to classify*/
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void setClassificationField(int field);
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/**Reads the renderer configuration from an XML file
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@param rnode the Dom node to read
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@param vl the vector layer which will be associated with the renderer*/
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virtual int readXML(const QDomNode& rnode, QgsVectorLayer& vl);
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/**Writes the contents of the renderer to a configuration file
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@ return true in case of success*/
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virtual bool writeXML( QDomNode & layer_node, QDomDocument & document, QgsVectorLayer& vl ) const;
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/** Returns true*/
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bool needsAttributes() const;
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/**Returns a list with the index to the classification field*/
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QList<int> classificationAttributes() const;
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/**Returns the renderers name*/
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QString name() const;
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/**Returns the symbols of the items*/
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const QList<QgsSymbol*> symbols() const;
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/**Returns a copy of the renderer (a deep copy on the heap)*/
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QgsRenderer* clone() const /Factory/;
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};
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