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https://github.com/qgis/QGIS.git
synced 2025-04-13 00:03:09 -04:00
e6c2ecd9f3
Fixes several crashes and problems with backwards compatibility. Before expressions were allowed, field names were loaded and saved unquoted, e.g. x.y - with introduction of expressions it was necessary to use properly quoted "x.y" name so that expression is correctly parsed. With these changes both options are possible and when possible, the unquoted field name is used for compatibility
137 lines
4.1 KiB
Plaintext
137 lines
4.1 KiB
Plaintext
class QgsRendererCategoryV2
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{
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%TypeHeaderCode
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#include <qgscategorizedsymbolrendererv2.h>
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%End
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public:
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//! takes ownership of symbol
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QgsRendererCategoryV2( QVariant value, QgsSymbolV2* symbol /Transfer/, QString label );
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//! copy constructor
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QgsRendererCategoryV2( const QgsRendererCategoryV2& cat );
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~QgsRendererCategoryV2();
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QVariant value() const;
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QgsSymbolV2* symbol() const;
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QString label() const;
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void setValue( const QVariant &value );
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void setSymbol( QgsSymbolV2* s /Transfer/ );
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void setLabel( const QString &label );
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// debugging
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QString dump() const;
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void toSld( QDomDocument& doc, QDomElement &element, QgsStringMap props ) const;
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};
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typedef QList<QgsRendererCategoryV2> QgsCategoryList;
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class QgsCategorizedSymbolRendererV2 : QgsFeatureRendererV2
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{
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%TypeHeaderCode
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#include <qgscategorizedsymbolrendererv2.h>
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%End
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public:
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QgsCategorizedSymbolRendererV2( QString attrName = QString(), QgsCategoryList categories = QgsCategoryList() );
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virtual ~QgsCategorizedSymbolRendererV2();
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virtual QgsSymbolV2* symbolForFeature( QgsFeature& feature );
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virtual void startRender( QgsRenderContext& context, const QgsVectorLayer *vlayer );
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virtual void stopRender( QgsRenderContext& context );
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virtual QList<QString> usedAttributes();
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virtual QString dump() const;
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virtual QgsFeatureRendererV2* clone() /Factory/;
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virtual void toSld( QDomDocument& doc, QDomElement &element ) const;
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//! returns bitwise OR-ed capabilities of the renderer
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//! \note added in 2.0
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virtual int capabilities();
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virtual QgsSymbolV2List symbols();
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//! @note added in 2.0
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void updateSymbols( QgsSymbolV2 * sym );
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const QgsCategoryList& categories();
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//! return index of category with specified value (-1 if not found)
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int categoryIndexForValue( QVariant val );
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bool updateCategoryValue( int catIndex, const QVariant &value );
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bool updateCategorySymbol( int catIndex, QgsSymbolV2* symbol /Transfer/ );
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bool updateCategoryLabel( int catIndex, QString label );
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void addCategory( const QgsRendererCategoryV2 &category );
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bool deleteCategory( int catIndex );
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void deleteAllCategories();
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//! Moves the category at index position from to index position to.
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void moveCategory( int from, int to );
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void sortByValue( Qt::SortOrder order = Qt::AscendingOrder );
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void sortByLabel( Qt::SortOrder order = Qt::AscendingOrder );
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QString classAttribute() const;
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void setClassAttribute( QString attr );
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//! create renderer from XML element
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static QgsFeatureRendererV2* create( QDomElement& element ) /Factory/;
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//! store renderer info to XML element
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virtual QDomElement save( QDomDocument& doc );
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//! return a list of symbology items for the legend
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virtual QgsLegendSymbologyList legendSymbologyItems( QSize iconSize );
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//! return a list of item text / symbol
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//! @note this method was added in version 1.5
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//! @note not available in python bindings
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// virtual QgsLegendSymbolList legendSymbolItems( double scaleDenominator = -1, QString rule = QString() );
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QgsSymbolV2* sourceSymbol();
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void setSourceSymbol( QgsSymbolV2* sym /Transfer/ );
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QgsVectorColorRampV2* sourceColorRamp();
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void setSourceColorRamp( QgsVectorColorRampV2* ramp /Transfer/ );
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//! @note added in 2.1
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bool invertedColorRamp();
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void setInvertedColorRamp( bool inverted );
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//! @note added in 1.6
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void setRotationField( QString fieldOrExpression );
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//! @note added in 1.6
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QString rotationField() const;
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//! @note added in 1.6
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void setSizeScaleField( QString fieldOrExpression );
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//! @note added in 1.6
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QString sizeScaleField() const;
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//! @note added in 2.0
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void setScaleMethod( QgsSymbolV2::ScaleMethod scaleMethod );
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//! @note added in 2.0
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QgsSymbolV2::ScaleMethod scaleMethod() const;
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protected:
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void rebuildHash();
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QgsSymbolV2* symbolForValue( QVariant value );
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private:
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QgsCategorizedSymbolRendererV2( const QgsCategorizedSymbolRendererV2 & );
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QgsCategorizedSymbolRendererV2 & operator=( const QgsCategorizedSymbolRendererV2 & );
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};
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