Expression contexts are used to encapsulate the parameters around which a QgsExpression should be eva...
virtual bool readLayoutXml(const QDomElement &layoutElement, const QDomDocument &document, const QgsReadWriteContext &context)=0
Sets the layout's state from a DOM element.
virtual bool readXml(const QDomElement &layoutElement, const QDomDocument &document, const QgsReadWriteContext &context)
Sets the collection's state from a DOM element.