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38 lines
1.5 KiB
Plaintext
38 lines
1.5 KiB
Plaintext
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/**
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* Assorted functions for dealing with layer trees.
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*
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* @note added in 2.4
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*/
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class QgsLayerTreeUtils
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{
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%TypeHeaderCode
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#include <qgslayertreeutils.h>
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%End
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public:
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//! Try to load layer tree from <legend> tag from project files from QGIS 2.2 and below
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static bool readOldLegend( QgsLayerTreeGroup* root, const QDomElement& legendElem );
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//! Try to load custom layer order from <legend> tag from project files from QGIS 2.2 and below
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static bool readOldLegendLayerOrder( const QDomElement& legendElem, bool& hasCustomOrder, QStringList& order );
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//! Return <legend> tag used in QGIS 2.2 and below
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static QDomElement writeOldLegend( QDomDocument& doc, QgsLayerTreeGroup* root, bool hasCustomOrder, const QStringList& order );
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//! Convert Qt::CheckState to QString
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static QString checkStateToXml( Qt::CheckState state );
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//! Convert QString to Qt::CheckState
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static Qt::CheckState checkStateFromXml( QString txt );
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//! Return true if any of the layers is editable
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static bool layersEditable( const QList<QgsLayerTreeLayer*>& layerNodes );
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//! Return true if any of the layers is modified
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static bool layersModified( const QList<QgsLayerTreeLayer*>& layerNodes );
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//! Remove layer nodes that refer to invalid layers
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static void removeInvalidLayers( QgsLayerTreeGroup* group );
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//! Remove subtree of embedded groups. Useful when saving layer tree
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static void removeChildrenOfEmbeddedGroups( QgsLayerTreeGroup* group );
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};
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