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const QMap<QString, QgsSymbol*> symbolMap() const { return mSymbols; }
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QgsRenderer* clone() const;
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/**Field index used for classification*/
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int mClassificationField;
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/**Symbols for the unique values*/
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QMap<QString, QgsSymbol*> mSymbols;
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/**Cached copy of all underlying symbols required attribute fields*/
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QgsAttributeList mSymbolAttributes;
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bool mSymbolAttributesDirty; // insertValue was called