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https://github.com/qgis/QGIS.git
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e2fa27e4a6
* load layers in parallel threads when opening project * parallel loading by default and settingsin advanced settings * fix freezing when no layer supports parallel loading * clean leftover * fix unwanted remove and typo * typo * fix flake8 * load OGR metadata under global mutex * Revert "load OGR metadata under global mutex" This reverts commit adcaf9e66ca432ee35143c45af2b383108770a63. * remove parallel loading capability for OGR * start application in server test * import start_app * fix flake8
163 lines
5.9 KiB
Plaintext
163 lines
5.9 KiB
Plaintext
/************************************************************************
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* This file has been generated automatically from *
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* *
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* src/core/qgslayerdefinition.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 QgsLayerDefinition
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{
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%Docstring(signature="appended")
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The :py:class:`QgsLayerDefinition` class holds generic methods for loading/exporting QLR files.
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QLR files are an export of the layer xml including the style and datasource location. There is no link
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to the QLR file once loaded. Consider the QLR file a mini project file for layers and styles. QLR
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files also store the layer tree info for the exported layers, including group information.
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%End
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%TypeHeaderCode
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#include "qgslayerdefinition.h"
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%End
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public:
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static bool loadLayerDefinition( const QString &path, QgsProject *project, QgsLayerTreeGroup *rootGroup, QString &errorMessage /Out/ );
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%Docstring
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Loads the QLR at path into QGIS. New layers are added to given project into layer tree specified by rootGroup
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%End
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static bool loadLayerDefinition( QDomDocument doc, QgsProject *project, QgsLayerTreeGroup *rootGroup, QString &errorMessage /Out/, QgsReadWriteContext &context );
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%Docstring
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Loads the QLR from the XML document. New layers are added to given project into layer tree specified by rootGroup
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%End
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static bool exportLayerDefinition( const QString &path, const QList<QgsLayerTreeNode *> &selectedTreeNodes, QString &errorMessage /Out/ );
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%Docstring
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Exports the selected layer tree nodes to a QLR file.
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This method uses the :py:func:`QgsProject.instance()`'s file path setting to determine whether absolute
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or relative paths are written. Use the variant with an explicit argument for file path type
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for control over this setting.
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:param path: file path for exported QLR file
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:param selectedTreeNodes: layer tree nodes to include in the QLR file
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:return: - ``True`` if the export was successful
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- errorMessage: will be set to any error messages generated during the export
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%End
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static bool exportLayerDefinition( const QString &path, const QList<QgsLayerTreeNode *> &selectedTreeNodes, Qgis::FilePathType pathType, QString &errorMessage /Out/ );
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%Docstring
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Exports the selected layer tree nodes to a QLR file.
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:param path: file path for exported QLR file
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:param selectedTreeNodes: layer tree nodes to include in the QLR file
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:param pathType: specifies whether absolute or relative file paths should be used.
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:return: - ``True`` if the export was successful
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- errorMessage: will be set to any error messages generated during the export
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.. versionadded:: 3.22
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%End
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static bool exportLayerDefinition( QDomDocument doc, const QList<QgsLayerTreeNode *> &selectedTreeNodes, QString &errorMessage /Out/, const QgsReadWriteContext &context );
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%Docstring
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Exports the selected layer tree nodes to a QLR XML document.
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%End
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static QDomDocument exportLayerDefinitionLayers( const QList<QgsMapLayer *> &layers, const QgsReadWriteContext &context );
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%Docstring
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Returns the given layer as a layer definition document
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Layer definitions store the data source as well as styling and custom properties.
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Layer definitions can be used to load a layer and styling all from a single file.
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This is a low-level routine that does not write layer tree.
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.. seealso:: :py:func:`exportLayerDefinition`
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%End
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static QList<QgsMapLayer *> loadLayerDefinitionLayers( QDomDocument &document, QgsReadWriteContext &context ) /Factory/;
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%Docstring
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Creates new layers from a layer definition document.
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This is a low-level routine that does not resolve layer ID conflicts, dependencies and joins
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.. seealso:: :py:func:`loadLayerDefinition`
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%End
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static QList<QgsMapLayer *> loadLayerDefinitionLayers( const QString &qlrfile ) /Factory/;
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%Docstring
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Creates new layers from a layer definition file (.QLR)
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This is a low-level routine that does not resolve layer ID conflicts, dependencies and joins
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.. seealso:: :py:func:`loadLayerDefinition`
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%End
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class DependencySorter
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{
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%Docstring(signature="appended")
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Class used to work with layer dependencies stored in a XML project or layer definition file
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%End
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%TypeHeaderCode
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#include "qgslayerdefinition.h"
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%End
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public:
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explicit DependencySorter( const QDomDocument &doc );
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%Docstring
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Constructor
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:param doc: The XML document containing maplayer elements
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%End
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explicit DependencySorter( const QString &fileName );
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%Docstring
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Constructor
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:param fileName: The filename where the XML document is stored
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%End
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QVector<QDomNode> sortedLayerNodes() const;
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%Docstring
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Gets the layer nodes in an order where they can be loaded incrementally without dependency break
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%End
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QStringList sortedLayerIds() const;
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%Docstring
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Gets the layer IDs in an order where they can be loaded incrementally without dependency break
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%End
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bool hasCycle() const;
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%Docstring
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Whether some cyclic dependency has been detected
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%End
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bool hasMissingDependency() const;
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%Docstring
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Whether some dependency is missing
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%End
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bool isLayerDependent( const QString &layerId ) const;
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%Docstring
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Returns whether the layer associated with the``layerId`` is dependent from another layer
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.. versionadded:: 3.32
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%End
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};
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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/qgslayerdefinition.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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