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1b041f4f4f
This can be used to restore initial layer status or to apply styles and other layer properties if the data source is changed. The idea is that the user can fix bad layers at any time, and by setting a new datasource she probably wants to keep the original layer properties.
139 lines
4.9 KiB
Plaintext
139 lines
4.9 KiB
Plaintext
/************************************************************************
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* This file has been generated automatically from *
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* *
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* src/core/layertree/qgslayertreeutils.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 QgsLayerTreeUtils
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{
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%Docstring
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Assorted functions for dealing with layer trees.
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.. versionadded:: 2.4
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%End
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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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static bool readOldLegend( QgsLayerTreeGroup *root, const QDomElement &legendElem );
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%Docstring
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Try to load layer tree from \verbatim <legend> \endverbatim tag from project files from QGIS 2.2 and below
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%End
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static bool readOldLegendLayerOrder( const QDomElement &legendElem, bool &hasCustomOrder, QStringList &order );
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%Docstring
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Try to load custom layer order from \verbatim <legend> \endverbatim tag from project files from QGIS 2.2 and below
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%End
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static QDomElement writeOldLegend( QDomDocument &doc, QgsLayerTreeGroup *root, bool hasCustomOrder, const QList<QgsMapLayer *> &order );
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%Docstring
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Returns \verbatim <legend> \endverbatim tag used in QGIS 2.2 and below
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%End
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static QString checkStateToXml( Qt::CheckState state );
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%Docstring
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Convert Qt.CheckState to QString
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%End
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static Qt::CheckState checkStateFromXml( const QString &txt );
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%Docstring
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Convert QString to Qt.CheckState
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%End
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static bool layersEditable( const QList<QgsLayerTreeLayer *> &layerNodes );
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%Docstring
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Returns true if any of the layers is editable
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%End
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static bool layersModified( const QList<QgsLayerTreeLayer *> &layerNodes );
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%Docstring
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Returns true if any of the layers is modified
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%End
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static void removeInvalidLayers( QgsLayerTreeGroup *group );
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%Docstring
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Removes layer nodes that refer to invalid layers
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%End
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static void storeInvalidLayersProperties( QgsLayerTreeGroup *group, const QDomDocument *doc );
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%Docstring
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Stores in a custom layer node property the layer properties XML information for an invalid layer
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.. versionadded:: 3.6
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%End
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static void replaceChildrenOfEmbeddedGroups( QgsLayerTreeGroup *group );
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%Docstring
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Remove subtree of embedded groups and replaces it with a custom property embedded-visible-layers
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%End
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static void updateEmbeddedGroupsProjectPath( QgsLayerTreeGroup *group, const QgsProject *project );
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%Docstring
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Updates an embedded ``group`` from a ``project``.
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%End
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static QStringList invisibleLayerList( QgsLayerTreeNode *node );
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%Docstring
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Gets invisible layers
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%End
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static void setLegendFilterByExpression( QgsLayerTreeLayer &layer, const QString &expr, bool enabled = true );
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%Docstring
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Sets the expression filter of a legend layer
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%End
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static QString legendFilterByExpression( const QgsLayerTreeLayer &layer, bool *enabled = 0 );
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%Docstring
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Returns the expression filter of a legend layer
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%End
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static bool hasLegendFilterExpression( const QgsLayerTreeGroup &group );
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%Docstring
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Test if one of the layers in a group has an expression filter
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%End
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static QgsLayerTreeLayer *insertLayerBelow( QgsLayerTreeGroup *group, const QgsMapLayer *refLayer, QgsMapLayer *layerToInsert );
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%Docstring
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Insert a QgsMapLayer just below another one
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:param group: the tree group where layers are (can be the root group)
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:param refLayer: the reference layer
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:param layerToInsert: the new layer to insert just below the reference layer
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:return: the new tree layer
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%End
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static QSet<QgsMapLayer *> collectMapLayersRecursive( const QList<QgsLayerTreeNode *> &nodes );
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%Docstring
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Returns map layers from the given list of layer tree nodes. Also recursively visits
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child nodes of groups.
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.. versionadded:: 3.4
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%End
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static int countMapLayerInTree( QgsLayerTreeNode *tree, QgsMapLayer *layer );
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%Docstring
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Returns how many occurrences of a map layer are there in a layer tree.
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In normal situations there is at most one occurrence, but sometimes there
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may be temporarily more: for example, during drag&drop, upon drop a new layer
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node is created while the original dragged node is still in the tree, resulting
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in two occurrences.
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This is useful when deciding whether to start or stop listening to a signal
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of a map layer within a layer tree and only connecting/disconnecting when
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there is only one occurrence of that layer.
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.. versionadded:: 3.4
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%End
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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/layertree/qgslayertreeutils.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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