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148 lines
4.2 KiB
Plaintext
148 lines
4.2 KiB
Plaintext
class QgsPropertyTransformer
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{
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%TypeHeaderCode
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#include <qgsproperty.h>
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%End
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%ConvertToSubClassCode
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if (sipCpp->transformerType() == QgsPropertyTransformer::SizeScaleTransformer)
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sipType = sipType_QgsSizeScaleTransformer;
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else if (sipCpp->transformerType() == QgsPropertyTransformer::ColorRampTransformer)
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sipType = sipType_QgsColorRampTransformer;
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else
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sipType = sipType_QgsPropertyTransformer;
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%End
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public:
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//! Transformer types
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enum Type
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{
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SizeScaleTransformer, /*!< Size scaling transformer (QgsSizeScaleTransformer) */
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ColorRampTransformer, /*!< Color ramp transformer (QgsColorRampTransformer) */
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};
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static QgsPropertyTransformer* create( Type type ) /Factory/;
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QgsPropertyTransformer( double minValue = 0.0, double maxValue = 1.0 );
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virtual ~QgsPropertyTransformer();
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virtual Type transformerType() const = 0;
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virtual QgsPropertyTransformer* clone() = 0 /Factory/;
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virtual bool readXml( const QDomElement& transformerElem, const QDomDocument& doc );
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virtual bool writeXml( QDomElement& transformerElem, QDomDocument& doc ) const;
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double minValue() const;
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void setMinValue( double min );
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double maxValue() const;
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void setMaxValue( double max );
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virtual QVariant transform( const QgsExpressionContext& context, const QVariant& value ) const = 0;
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virtual QString toExpression( const QString& baseExpression ) const = 0;
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};
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class QgsSizeScaleTransformer : QgsPropertyTransformer
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{
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%TypeHeaderCode
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#include <qgsproperty.h>
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%End
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public:
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//! Size scaling methods
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enum ScaleType
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{
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Linear, /*!< Linear scaling */
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Area, /*!< Area based scaling */
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Flannery, /*!< Flannery scaling method */
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Exponential, /*!< Scale using set exponent */
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};
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QgsSizeScaleTransformer( ScaleType type = Linear,
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double minValue = 0.0,
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double maxValue = 1.0,
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double minSize = 0.0,
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double maxSize = 1.0,
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double nullSize = 0.0,
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double exponent = 1.0 );
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virtual Type transformerType() const;
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virtual QgsSizeScaleTransformer* clone() /Factory/;
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virtual bool writeXml( QDomElement& transformerElem, QDomDocument& doc ) const;
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virtual bool readXml( const QDomElement& transformerElem, const QDomDocument& doc );
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virtual QVariant transform( const QgsExpressionContext& context, const QVariant& value ) const;
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virtual QString toExpression( const QString& baseExpression ) const;
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double size( double value ) const;
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double minSize() const;
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void setMinSize( double size );
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double maxSize() const;
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void setMaxSize( double size );
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double nullSize() const;
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void setNullSize( double size );
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double exponent() const;
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void setExponent( double exponent );
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ScaleType type() const;
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void setType( ScaleType type );
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};
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class QgsColorRampTransformer : QgsPropertyTransformer
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{
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%TypeHeaderCode
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#include <qgsproperty.h>
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%End
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public:
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QgsColorRampTransformer( double minValue = 0.0,
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double maxValue = 1.0,
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QgsColorRamp* ramp /Transfer/ = 0,
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const QColor& nullColor = QColor( 0, 0, 0, 0 ) );
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QgsColorRampTransformer( const QgsColorRampTransformer& other );
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//QgsColorRampTransformer& operator=( const QgsColorRampTransformer& other );
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~QgsColorRampTransformer();
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virtual Type transformerType() const;
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virtual QgsColorRampTransformer* clone() /Factory/;
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virtual bool writeXml( QDomElement& transformerElem, QDomDocument& doc ) const;
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virtual bool readXml( const QDomElement& transformerElem, const QDomDocument& doc );
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virtual QVariant transform( const QgsExpressionContext& context, const QVariant& value ) const;
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virtual QString toExpression( const QString& baseExpression ) const;
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QColor color( double value ) const;
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QgsColorRamp* colorRamp() const;
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void setColorRamp( QgsColorRamp* ramp /Transfer/ );
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QColor nullColor() const;
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void setNullColor( const QColor& color );
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QString rampName() const;
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void setRampName( const QString& name );
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};
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