QgsAbstractLayoutIterator Class Reference

An abstract base class for QgsLayout based classes which can be exported by QgsLayoutExporter. More...

#include <qgsabstractlayoutiterator.h>

Inheritance diagram for QgsAbstractLayoutIterator:

Public Member Functions
virtual	~QgsAbstractLayoutIterator ()=default
virtual bool	beginRender ()=0
	Called when rendering begins, before iteration commences. More...
virtual int	count () const =0
	Returns the number of features to iterate over. More...
virtual bool	endRender ()=0
	Ends the render, performing any required cleanup tasks. More...
virtual QString	filePath (const QString &baseFilePath, const QString &extension)=0
	Returns the file path for the current feature, based on a specified base file path and extension. More...
virtual QgsLayout *	layout ()=0
	Returns the layout associated with the iterator. More...
virtual bool	next ()=0
	Iterates to next feature, returning false if no more features exist to iterate over. More...

Detailed Description

An abstract base class for QgsLayout based classes which can be exported by QgsLayoutExporter.

Since

QGIS 3.0

Definition at line 30 of file qgsabstractlayoutiterator.h.

Constructor & Destructor Documentation

~QgsAbstractLayoutIterator()

virtual QgsAbstractLayoutIterator::~QgsAbstractLayoutIterator ( )

virtualdefault

Member Function Documentation

beginRender()

virtual bool QgsAbstractLayoutIterator::beginRender ( )

pure virtual

Called when rendering begins, before iteration commences.

Returns true if successful, false if no iteration is available or required.

See also

endRender()

Implemented in QgsLayoutAtlas.

count()

virtual int QgsAbstractLayoutIterator::count ( ) const

pure virtual

Returns the number of features to iterate over.

Implemented in QgsLayoutAtlas.

endRender()

virtual bool QgsAbstractLayoutIterator::endRender ( )

pure virtual

Ends the render, performing any required cleanup tasks.

Implemented in QgsLayoutAtlas.

filePath()

virtual QString QgsAbstractLayoutIterator::filePath ( const QString &  baseFilePath, const QString &  extension  )

pure virtual

Returns the file path for the current feature, based on a specified base file path and extension.

Implemented in QgsLayoutAtlas.

layout()

virtual QgsLayout* QgsAbstractLayoutIterator::layout ( )

pure virtual

Returns the layout associated with the iterator.

Implemented in QgsLayoutAtlas.

next()

virtual bool QgsAbstractLayoutIterator::next ( )

pure virtual

Iterates to next feature, returning false if no more features exist to iterate over.

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The documentation for this class was generated from the following file:

• /build/qgis-3.14.0+99unstable/src/core/layout/qgsabstractlayoutiterator.h