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			101 lines
		
	
	
		
			2.7 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
			
		
		
	
	
			101 lines
		
	
	
		
			2.7 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
/************************************************************************
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 * This file has been generated automatically from                      *
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 *                                                                      *
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 * src/core/qgsexpressionfieldbuffer.h                                  *
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 *                                                                      *
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 * Do not edit manually ! Edit header and run scripts/sipify.pl again   *
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 ************************************************************************/
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class QgsExpressionFieldBuffer
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{
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%Docstring
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Buffers information about expression fields for a vector layer.
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.. versionadded:: 2.6
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%End
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%TypeHeaderCode
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#include "qgsexpressionfieldbuffer.h"
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%End
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  public:
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    struct ExpressionField
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    {
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      ExpressionField( const QString &exp, const QgsField &fld );
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      QgsExpression cachedExpression;
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      QgsField field;
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    };
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    QgsExpressionFieldBuffer();
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%Docstring
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Constructor for QgsExpressionFieldBuffer.
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%End
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    void addExpression( const QString &exp, const QgsField &fld );
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%Docstring
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Add an expression to the buffer
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:param exp: expression to add
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:param fld: field to add
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%End
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    void removeExpression( int index );
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%Docstring
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Remove an expression from the buffer
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:param index: index of expression to remove
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%End
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    void renameExpression( int index, const QString &name );
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%Docstring
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Renames an expression field at a given index
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:param index: The index of the expression to change
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:param name: New name for field
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.. versionadded:: 3.0
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%End
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    void updateExpression( int index, const QString &exp );
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%Docstring
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Changes the expression at a given index
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:param index: The index of the expression to change
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:param exp: The new expression to set
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.. versionadded:: 2.9
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%End
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    void writeXml( QDomNode &layer_node, QDomDocument &document ) const;
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%Docstring
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Saves expressions to xml under the layer node
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%End
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    void readXml( const QDomNode &layer_node );
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%Docstring
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Reads expressions from project file
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%End
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    void updateFields( QgsFields &flds );
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%Docstring
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Adds fields with the expressions buffered in this object to a QgsFields object
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:param flds: The fields to be updated
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%End
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    QList<QgsExpressionFieldBuffer::ExpressionField> expressions() const;
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};
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/************************************************************************
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 * This file has been generated automatically from                      *
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 *                                                                      *
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 * src/core/qgsexpressionfieldbuffer.h                                  *
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 *                                                                      *
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 * Do not edit manually ! Edit header and run scripts/sipify.pl again   *
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 ************************************************************************/
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