mirror of
https://github.com/qgis/QGIS.git
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1485 lines
40 KiB
Plaintext
1485 lines
40 KiB
Plaintext
/************************************************************************
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* This file has been generated automatically from *
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* *
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* src/core/qgsmaplayer.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 QgsMapLayer : QObject
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{
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%Docstring
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Base class for all map layer types.
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This is the base class for all map layer types (vector, raster).
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%End
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%TypeHeaderCode
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#include "qgsmaplayer.h"
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%End
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%ConvertToSubClassCode
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QgsMapLayer *layer = qobject_cast<QgsMapLayer *>( sipCpp );
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sipType = 0;
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if ( layer )
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{
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switch ( layer->type() )
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{
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case QgsMapLayer::VectorLayer:
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sipType = sipType_QgsVectorLayer;
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break;
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case QgsMapLayer::RasterLayer:
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sipType = sipType_QgsRasterLayer;
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break;
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case QgsMapLayer::PluginLayer:
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sipType = sipType_QgsPluginLayer;
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break;
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case QgsMapLayer::MeshLayer:
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sipType = sipType_QgsMeshLayer;
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break;
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default:
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sipType = nullptr;
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break;
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}
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}
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%End
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public:
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enum LayerType
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{
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VectorLayer,
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RasterLayer,
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PluginLayer,
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MeshLayer
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};
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enum PropertyType
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{
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Style,
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Metadata,
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};
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QgsMapLayer( QgsMapLayer::LayerType type = VectorLayer, const QString &name = QString(), const QString &source = QString() );
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%Docstring
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Constructor for QgsMapLayer
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:param type: layer type
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:param name: display name for the layer
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:param source: datasource of layer
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%End
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~QgsMapLayer();
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virtual QgsMapLayer *clone() const = 0;
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%Docstring
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Returns a new instance equivalent to this one except for the id which
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is still unique.
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:return: a new layer instance
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.. versionadded:: 3.0
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%End
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QgsMapLayer::LayerType type() const;
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%Docstring
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Returns the type of the layer.
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%End
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static QString extensionPropertyType( PropertyType type );
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%Docstring
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Returns the extension of a Property.
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:return: The extension
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.. versionadded:: 3.0
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%End
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QString id() const;
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%Docstring
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Returns the layer's unique ID, which is used to access this layer from :py:class:`QgsProject`.
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%End
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void setName( const QString &name );
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%Docstring
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Set the display ``name`` of the layer.
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.. versionadded:: 2.16
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.. seealso:: :py:func:`name`
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%End
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QString name() const;
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%Docstring
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Returns the display name of the layer.
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.. seealso:: :py:func:`setName`
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%End
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virtual QgsDataProvider *dataProvider();
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%Docstring
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Returns the layer's data provider.
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%End
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void setShortName( const QString &shortName );
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%Docstring
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Sets the short name of the layer
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used by QGIS Server to identify the layer.
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:return: the layer short name
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.. seealso:: :py:func:`shortName`
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%End
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QString shortName() const;
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%Docstring
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Returns the short name of the layer
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used by QGIS Server to identify the layer.
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.. seealso:: :py:func:`setShortName`
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%End
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void setTitle( const QString &title );
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%Docstring
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Sets the title of the layer
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used by QGIS Server in GetCapabilities request.
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.. seealso:: :py:func:`title`
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%End
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QString title() const;
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%Docstring
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Returns the title of the layer
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used by QGIS Server in GetCapabilities request.
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:return: the layer title
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.. seealso:: :py:func:`setTitle`
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%End
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void setAbstract( const QString &abstract );
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%Docstring
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Sets the abstract of the layer
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used by QGIS Server in GetCapabilities request.
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:return: the layer abstract
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.. seealso:: :py:func:`abstract`
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%End
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QString abstract() const;
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%Docstring
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Returns the abstract of the layer
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used by QGIS Server in GetCapabilities request.
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:return: the layer abstract
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.. seealso:: :py:func:`setAbstract`
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%End
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void setKeywordList( const QString &keywords );
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%Docstring
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Sets the keyword list of the layer
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used by QGIS Server in GetCapabilities request.
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:return: the layer keyword list
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.. seealso:: :py:func:`keywordList`
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%End
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QString keywordList() const;
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%Docstring
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Returns the keyword list of the layer
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used by QGIS Server in GetCapabilities request.
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:return: the layer keyword list
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.. seealso:: :py:func:`setKeywordList`
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%End
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void setDataUrl( const QString &dataUrl );
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%Docstring
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Sets the DataUrl of the layer
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used by QGIS Server in GetCapabilities request.
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DataUrl is a a link to the underlying data represented by a particular layer.
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:return: the layer DataUrl
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.. seealso:: :py:func:`dataUrl`
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%End
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QString dataUrl() const;
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%Docstring
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Returns the DataUrl of the layer
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used by QGIS Server in GetCapabilities request.
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DataUrl is a a link to the underlying data represented by a particular layer.
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:return: the layer DataUrl
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.. seealso:: :py:func:`setDataUrl`
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%End
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void setDataUrlFormat( const QString &dataUrlFormat );
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%Docstring
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Sets the DataUrl format of the layer
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used by QGIS Server in GetCapabilities request.
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DataUrl is a a link to the underlying data represented by a particular layer.
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:return: the layer DataUrl format
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.. seealso:: :py:func:`dataUrlFormat`
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%End
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QString dataUrlFormat() const;
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%Docstring
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Returns the DataUrl format of the layer
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used by QGIS Server in GetCapabilities request.
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DataUrl is a a link to the underlying data represented by a particular layer.
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:return: the layer DataUrl format
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.. seealso:: :py:func:`setDataUrlFormat`
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%End
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void setAttribution( const QString &attrib );
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%Docstring
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Sets the attribution of the layer
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used by QGIS Server in GetCapabilities request.
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Attribution indicates the provider of a layer or collection of layers.
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:return: the layer attribution
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.. seealso:: :py:func:`attribution`
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%End
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QString attribution() const;
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%Docstring
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Returns the attribution of the layer
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used by QGIS Server in GetCapabilities request.
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Attribution indicates the provider of a layer or collection of layers.
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:return: the layer attribution
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.. seealso:: :py:func:`setAttribution`
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%End
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void setAttributionUrl( const QString &attribUrl );
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%Docstring
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Sets the attribution URL of the layer
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used by QGIS Server in GetCapabilities request.
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Attribution indicates the provider of a layer or collection of layers.
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:return: the layer attribution URL
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.. seealso:: :py:func:`attributionUrl`
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%End
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QString attributionUrl() const;
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%Docstring
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Returns the attribution URL of the layer
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used by QGIS Server in GetCapabilities request.
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Attribution indicates the provider of a layer or collection of layers.
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:return: the layer attribution URL
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.. seealso:: :py:func:`setAttributionUrl`
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%End
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void setMetadataUrl( const QString &metaUrl );
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%Docstring
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Sets the metadata URL of the layer
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used by QGIS Server in GetCapabilities request.
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MetadataUrl is a a link to the detailed, standardized metadata about the data.
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:return: the layer metadata URL
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.. seealso:: :py:func:`metadataUrl`
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%End
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QString metadataUrl() const;
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%Docstring
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Returns the metadata URL of the layer
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used by QGIS Server in GetCapabilities request.
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MetadataUrl is a a link to the detailed, standardized metadata about the data.
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:return: the layer metadata URL
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.. seealso:: :py:func:`setMetadataUrl`
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%End
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void setMetadataUrlType( const QString &metaUrlType );
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%Docstring
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Set the metadata type of the layer
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used by QGIS Server in GetCapabilities request
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MetadataUrlType indicates the standard to which the metadata complies.
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:return: the layer metadata type
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.. seealso:: :py:func:`metadataUrlType`
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%End
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QString metadataUrlType() const;
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%Docstring
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Returns the metadata type of the layer
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used by QGIS Server in GetCapabilities request.
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MetadataUrlType indicates the standard to which the metadata complies.
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:return: the layer metadata type
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.. seealso:: :py:func:`setMetadataUrlType`
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%End
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void setMetadataUrlFormat( const QString &metaUrlFormat );
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%Docstring
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Sets the metadata format of the layer
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used by QGIS Server in GetCapabilities request.
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MetadataUrlType indicates how the metadata is structured.
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:return: the layer metadata format
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.. seealso:: :py:func:`metadataUrlFormat`
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%End
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QString metadataUrlFormat() const;
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%Docstring
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Returns the metadata format of the layer
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used by QGIS Server in GetCapabilities request.
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MetadataUrlType indicates how the metadata is structured.
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:return: the layer metadata format
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.. seealso:: :py:func:`setMetadataUrlFormat`
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%End
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void setBlendMode( QPainter::CompositionMode blendMode );
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%Docstring
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Set the blending mode used for rendering a layer.
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:param blendMode: new blending mode
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.. seealso:: :py:func:`blendMode`
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%End
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QPainter::CompositionMode blendMode() const;
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%Docstring
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Returns the current blending mode for a layer.
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.. seealso:: :py:func:`setBlendMode`
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%End
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bool readOnly() const;
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%Docstring
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Returns if this layer is read only.
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%End
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virtual void reload();
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%Docstring
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Synchronises with changes in the datasource
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%End
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virtual QgsMapLayerRenderer *createMapRenderer( QgsRenderContext &rendererContext ) = 0 /Factory/;
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%Docstring
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Returns new instance of QgsMapLayerRenderer that will be used for rendering of given context
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.. versionadded:: 2.4
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%End
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virtual QgsRectangle extent() const;
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%Docstring
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Returns the extent of the layer.
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%End
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bool isValid() const;
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%Docstring
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Returns the status of the layer. An invalid layer is one which has a bad datasource
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or other problem. Child classes set this flag when initialized.
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:return: true if the layer is valid and can be accessed
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%End
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QString publicSource() const;
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%Docstring
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Gets a version of the internal layer definition that has sensitive
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bits removed (for example, the password). This function should
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be used when displaying the source name for general viewing.
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.. seealso:: :py:func:`source`
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%End
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QString source() const;
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%Docstring
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Returns the source for the layer. This source may contain usernames, passwords
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and other sensitive information.
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.. seealso:: :py:func:`publicSource`
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%End
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virtual QStringList subLayers() const;
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%Docstring
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Returns the sublayers of this layer.
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(Useful for providers that manage their own layers, such as WMS).
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%End
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virtual void setLayerOrder( const QStringList &layers );
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%Docstring
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Reorders the *previously selected* sublayers of this layer from bottom to top.
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(Useful for providers that manage their own layers, such as WMS).
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%End
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virtual void setSubLayerVisibility( const QString &name, bool visible );
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%Docstring
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Set the visibility of the given sublayer name.
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:param name: sublayer name
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:param visible: sublayer visibility
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%End
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virtual bool isEditable() const;
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%Docstring
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Returns true if the layer can be edited.
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%End
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virtual bool isSpatial() const;
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%Docstring
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Returns true if the layer is considered a spatial layer, ie it has some form of geometry associated with it.
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.. versionadded:: 2.16
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%End
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bool readLayerXml( const QDomElement &layerElement, QgsReadWriteContext &context );
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%Docstring
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Sets state from Dom document
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:param layerElement: The Dom element corresponding to ``maplayer'' tag
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:param context: writing context (e.g. for conversion between relative and absolute paths)
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\note
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The Dom node corresponds to a Dom document project file XML element read
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by :py:class:`QgsProject`.
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This, in turn, calls readXml(), which is over-rideable by sub-classes so
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that they can read their own specific state from the given Dom node.
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Invoked by :py:func:`QgsProject.read()`
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:return: true if successful
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%End
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bool writeLayerXml( QDomElement &layerElement, QDomDocument &document, const QgsReadWriteContext &context ) const;
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%Docstring
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Stores state in Dom node
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:param layerElement: is a Dom element corresponding to ``maplayer'' tag
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:param document: is a the dom document being written
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:param context: reading context (e.g. for conversion between relative and absolute paths)
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\note
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The Dom node corresponds to a Dom document project file XML element to be
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written by :py:class:`QgsProject`.
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This, in turn, calls writeXml(), which is over-rideable by sub-classes so
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that they can write their own specific state to the given Dom node.
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Invoked by :py:func:`QgsProject.write()`
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:return: true if successful
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%End
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virtual void resolveReferences( QgsProject *project );
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%Docstring
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Resolve references to other layers (kept as layer IDs after reading XML) into layer objects.
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.. versionadded:: 3.0
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%End
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QStringList customPropertyKeys() const;
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%Docstring
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Returns list of all keys within custom properties. Properties are stored in a map and saved in project file.
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.. seealso:: :py:func:`customProperty`
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.. versionadded:: 3.0
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%End
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void setCustomProperty( const QString &key, const QVariant &value );
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%Docstring
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Set a custom property for layer. Properties are stored in a map and saved in project file.
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.. seealso:: :py:func:`customProperty`
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.. seealso:: :py:func:`removeCustomProperty`
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%End
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QVariant customProperty( const QString &value, const QVariant &defaultValue = QVariant() ) const;
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%Docstring
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Read a custom property from layer. Properties are stored in a map and saved in project file.
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.. seealso:: :py:func:`setCustomProperty`
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%End
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void setCustomProperties( const QgsObjectCustomProperties &properties );
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%Docstring
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Set custom properties for layer. Current properties are dropped.
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.. versionadded:: 3.0
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%End
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|
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void removeCustomProperty( const QString &key );
|
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%Docstring
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Remove a custom property from layer. Properties are stored in a map and saved in project file.
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.. seealso:: :py:func:`setCustomProperty`
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%End
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virtual QgsError error() const;
|
|
%Docstring
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|
Gets current status error. This error describes some principal problem
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for which layer cannot work and thus is not valid. It is not last error
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after accessing data by draw() etc.
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%End
|
|
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|
QgsCoordinateReferenceSystem crs() const;
|
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%Docstring
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|
Returns the layer's spatial reference system.
|
|
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|
.. versionadded:: 1.4
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|
%End
|
|
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|
void setCrs( const QgsCoordinateReferenceSystem &srs, bool emitSignal = true );
|
|
%Docstring
|
|
Sets layer's spatial reference system
|
|
%End
|
|
|
|
static QString formatLayerName( const QString &name );
|
|
%Docstring
|
|
A convenience function to capitalize and format a layer ``name``.
|
|
|
|
.. versionadded:: 3.0
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|
%End
|
|
|
|
virtual QString metadataUri() const;
|
|
%Docstring
|
|
Retrieve the metadata URI for this layer
|
|
(either as a .qmd file on disk or as a
|
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record in the users style table in their personal qgis.db)
|
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:return: a QString with the metadata file name
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|
.. versionadded:: 3.0
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%End
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void exportNamedMetadata( QDomDocument &doc, QString &errorMsg ) const;
|
|
%Docstring
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|
Export the current metadata of this layer as named metadata in a QDomDocument
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|
:param doc: the target QDomDocument
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|
:param errorMsg: this QString will be initialized on error
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|
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|
.. versionadded:: 3.0
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%End
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|
|
|
virtual QString saveDefaultMetadata( bool &resultFlag /Out/ );
|
|
%Docstring
|
|
Save the current metadata of this layer as the default metadata
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(either as a .qmd file on disk or as a
|
|
record in the users style table in their personal qgis.db)
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|
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:param resultFlag: a reference to a flag that will be set to false if
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we did not manage to save the default metadata.
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|
:return: a QString with any status messages
|
|
|
|
.. versionadded:: 3.0
|
|
%End
|
|
|
|
QString saveNamedMetadata( const QString &uri, bool &resultFlag );
|
|
%Docstring
|
|
Save the current metadata of this layer as a named metadata
|
|
(either as a .qmd file on disk or as a
|
|
record in the users style table in their personal qgis.db)
|
|
|
|
:param uri: the file name or other URI for the
|
|
metadata file. First an attempt will be made to see if this
|
|
is a file and save to that, if that fails the qgis.db metadata
|
|
table will be used to create a metadata entry who's
|
|
key matches the URI.
|
|
:param resultFlag: a reference to a flag that will be set to false if
|
|
we did not manage to save the default metadata.
|
|
|
|
:return: a QString with any status messages
|
|
|
|
.. versionadded:: 3.0
|
|
%End
|
|
|
|
virtual QString loadNamedMetadata( const QString &uri, bool &resultFlag /Out/ );
|
|
%Docstring
|
|
Retrieve a named metadata for this layer if one
|
|
exists (either as a .qmd file on disk or as a
|
|
record in the users style table in their personal qgis.db)
|
|
|
|
:param uri: - the file name or other URI for the
|
|
metadata file. First an attempt will be made to see if this
|
|
is a file and load that, if that fails the qgis.db metadata
|
|
table will be consulted to see if there is a metadata who's
|
|
key matches the URI.
|
|
:param resultFlag: a reference to a flag that will be set to false if
|
|
we did not manage to load the default metadata.
|
|
|
|
:return: a QString with any status messages
|
|
|
|
.. versionadded:: 3.0
|
|
%End
|
|
|
|
QString loadDefaultMetadata( bool &resultFlag );
|
|
%Docstring
|
|
Retrieve the default metadata for this layer if one
|
|
exists (either as a .qmd file on disk or as a
|
|
record in the users metadata table in their personal qgis.db)
|
|
|
|
:param resultFlag: a reference to a flag that will be set to false if
|
|
we did not manage to load the default metadata.
|
|
|
|
:return: a QString with any status messages
|
|
|
|
.. versionadded:: 3.0
|
|
%End
|
|
|
|
bool loadNamedMetadataFromDatabase( const QString &db, const QString &uri, QString &qmd );
|
|
%Docstring
|
|
Retrieve a named metadata for this layer from a sqlite database.
|
|
|
|
:param db: path to sqlite database
|
|
:param uri: uri for table
|
|
:param qmd: will be set to QMD xml metadata content from database
|
|
|
|
:return: true if style was successfully loaded
|
|
|
|
.. versionadded:: 3.0
|
|
%End
|
|
|
|
bool importNamedMetadata( QDomDocument &document, QString &errorMessage );
|
|
%Docstring
|
|
Import the metadata of this layer from a QDomDocument
|
|
|
|
:param document: source QDomDocument
|
|
:param errorMessage: this QString will be initialized on error
|
|
|
|
:return: true on success
|
|
|
|
.. versionadded:: 3.0
|
|
%End
|
|
|
|
virtual QString styleURI() const;
|
|
%Docstring
|
|
Retrieve the style URI for this layer
|
|
(either as a .qml file on disk or as a
|
|
record in the users style table in their personal qgis.db)
|
|
|
|
:return: a QString with the style file name
|
|
|
|
.. seealso:: :py:func:`also`
|
|
%End
|
|
|
|
virtual QString loadDefaultStyle( bool &resultFlag /Out/ );
|
|
%Docstring
|
|
Retrieve the default style for this layer if one
|
|
exists (either as a .qml file on disk or as a
|
|
record in the users style table in their personal qgis.db)
|
|
|
|
:param resultFlag: a reference to a flag that will be set to false if
|
|
we did not manage to load the default style.
|
|
|
|
:return: a QString with any status messages
|
|
|
|
.. seealso:: :py:func:`also`
|
|
%End
|
|
|
|
virtual QString loadNamedStyle( const QString &uri, bool &resultFlag /Out/ );
|
|
%Docstring
|
|
Retrieve a named style for this layer if one
|
|
exists (either as a .qml file on disk or as a
|
|
record in the users style table in their personal qgis.db)
|
|
|
|
:param uri: - the file name or other URI for the
|
|
style file. First an attempt will be made to see if this
|
|
is a file and load that, if that fails the qgis.db styles
|
|
table will be consulted to see if there is a style who's
|
|
key matches the URI.
|
|
:param resultFlag: a reference to a flag that will be set to false if
|
|
we did not manage to load the default style.
|
|
|
|
:return: a QString with any status messages
|
|
|
|
.. seealso:: :py:func:`also`
|
|
%End
|
|
|
|
virtual bool loadNamedStyleFromDatabase( const QString &db, const QString &uri, QString &qml /Out/ );
|
|
%Docstring
|
|
Retrieve a named style for this layer from a sqlite database.
|
|
|
|
:param db: path to sqlite database
|
|
:param uri: uri for table
|
|
:param qml: will be set to QML style content from database
|
|
|
|
:return: true if style was successfully loaded
|
|
%End
|
|
|
|
virtual bool importNamedStyle( QDomDocument &doc, QString &errorMsg /Out/ );
|
|
%Docstring
|
|
Import the properties of this layer from a QDomDocument
|
|
|
|
:param doc: source QDomDocument
|
|
:param errorMsg: this QString will be initialized on error
|
|
during the execution of readSymbology
|
|
|
|
:return: true on success
|
|
|
|
.. versionadded:: 2.8
|
|
%End
|
|
|
|
virtual void exportNamedStyle( QDomDocument &doc, QString &errorMsg ) const;
|
|
%Docstring
|
|
Export the properties of this layer as named style in a QDomDocument
|
|
|
|
:param doc: the target QDomDocument
|
|
:param errorMsg: this QString will be initialized on error
|
|
during the execution of writeSymbology
|
|
%End
|
|
|
|
|
|
virtual void exportSldStyle( QDomDocument &doc, QString &errorMsg ) const;
|
|
%Docstring
|
|
Export the properties of this layer as SLD style in a QDomDocument
|
|
|
|
:param doc: the target QDomDocument
|
|
:param errorMsg: this QString will be initialized on error
|
|
during the execution of writeSymbology
|
|
%End
|
|
|
|
virtual QString saveDefaultStyle( bool &resultFlag /Out/ );
|
|
%Docstring
|
|
Save the properties of this layer as the default style
|
|
(either as a .qml file on disk or as a
|
|
record in the users style table in their personal qgis.db)
|
|
|
|
:param resultFlag: a reference to a flag that will be set to false if
|
|
we did not manage to save the default style.
|
|
|
|
:return: a QString with any status messages
|
|
|
|
.. seealso:: :py:func:`loadNamedStyle`
|
|
%End
|
|
|
|
virtual QString saveNamedStyle( const QString &uri, bool &resultFlag /Out/ );
|
|
%Docstring
|
|
Save the properties of this layer as a named style
|
|
(either as a .qml file on disk or as a
|
|
record in the users style table in their personal qgis.db)
|
|
|
|
:param uri: the file name or other URI for the
|
|
style file. First an attempt will be made to see if this
|
|
is a file and save to that, if that fails the qgis.db styles
|
|
table will be used to create a style entry who's
|
|
key matches the URI.
|
|
:param resultFlag: a reference to a flag that will be set to false if
|
|
we did not manage to save the default style.
|
|
|
|
:return: a QString with any status messages
|
|
|
|
.. seealso:: :py:func:`saveDefaultStyle`
|
|
%End
|
|
|
|
virtual QString saveSldStyle( const QString &uri, bool &resultFlag ) const;
|
|
%Docstring
|
|
Saves the properties of this layer to an SLD format file.
|
|
|
|
:param uri: uri of destination for exported SLD file.
|
|
:param resultFlag: a reference to a flag that will be set to false if
|
|
the SLD file could not be generated
|
|
|
|
:return: a string with any status or error messages
|
|
|
|
.. seealso:: :py:func:`loadSldStyle`
|
|
%End
|
|
|
|
virtual QString loadSldStyle( const QString &uri, bool &resultFlag );
|
|
%Docstring
|
|
Attempts to style the layer using the formatting from an SLD type file.
|
|
|
|
:param uri: uri of source SLD file
|
|
:param resultFlag: a reference to a flag that will be set to false if
|
|
the SLD file could not be loaded
|
|
|
|
:return: a string with any status or error messages
|
|
|
|
.. seealso:: :py:func:`saveSldStyle`
|
|
%End
|
|
|
|
virtual bool readSld( const QDomNode &node, QString &errorMessage );
|
|
|
|
|
|
|
|
virtual bool readSymbology( const QDomNode &node, QString &errorMessage, QgsReadWriteContext &context ) = 0;
|
|
%Docstring
|
|
Read the symbology for the current layer from the Dom node supplied.
|
|
|
|
:param node: node that will contain the symbology definition for this layer.
|
|
:param errorMessage: reference to string that will be updated with any error messages
|
|
:param context: reading context (used for transform from relative to absolute paths)
|
|
|
|
:return: true in case of success.
|
|
%End
|
|
|
|
virtual bool readStyle( const QDomNode &node, QString &errorMessage, QgsReadWriteContext &context );
|
|
%Docstring
|
|
Read the style for the current layer from the Dom node supplied.
|
|
|
|
:param node: node that will contain the style definition for this layer.
|
|
:param errorMessage: reference to string that will be updated with any error messages
|
|
:param context: reading context (used for transform from relative to absolute paths)
|
|
|
|
:return: true in case of success.
|
|
|
|
.. versionadded:: 2.16
|
|
|
|
.. note::
|
|
|
|
To be implemented in subclasses. Default implementation does nothing and returns false.
|
|
%End
|
|
|
|
virtual bool writeSymbology( QDomNode &node, QDomDocument &doc, QString &errorMessage, const QgsReadWriteContext &context ) const = 0;
|
|
%Docstring
|
|
Write the symbology for the layer into the docment provided.
|
|
|
|
:param node: the node that will have the style element added to it.
|
|
:param doc: the document that will have the QDomNode added.
|
|
:param errorMessage: reference to string that will be updated with any error messages
|
|
:param context: writing context (used for transform from absolute to relative paths)
|
|
|
|
:return: true in case of success.
|
|
%End
|
|
|
|
virtual bool writeStyle( QDomNode &node, QDomDocument &doc, QString &errorMessage, const QgsReadWriteContext &context ) const;
|
|
%Docstring
|
|
Write just the style information for the layer into the document
|
|
|
|
:param node: the node that will have the style element added to it.
|
|
:param doc: the document that will have the QDomNode added.
|
|
:param errorMessage: reference to string that will be updated with any error messages
|
|
:param context: writing context (used for transform from absolute to relative paths)
|
|
|
|
:return: true in case of success.
|
|
|
|
.. versionadded:: 2.16
|
|
|
|
.. note::
|
|
|
|
To be implemented in subclasses. Default implementation does nothing and returns false.
|
|
%End
|
|
|
|
QUndoStack *undoStack();
|
|
%Docstring
|
|
Returns pointer to layer's undo stack
|
|
%End
|
|
|
|
QUndoStack *undoStackStyles();
|
|
%Docstring
|
|
Returns pointer to layer's style undo stack
|
|
|
|
.. versionadded:: 2.16
|
|
%End
|
|
|
|
void setLegendUrl( const QString &legendUrl );
|
|
%Docstring
|
|
Sets the URL for the layer's legend.
|
|
%End
|
|
|
|
QString legendUrl() const;
|
|
%Docstring
|
|
Returns the URL for the layer's legend.
|
|
%End
|
|
|
|
void setLegendUrlFormat( const QString &legendUrlFormat );
|
|
%Docstring
|
|
Sets the format for a URL based layer legend.
|
|
%End
|
|
|
|
QString legendUrlFormat() const;
|
|
%Docstring
|
|
Returns the format for a URL based layer legend.
|
|
%End
|
|
|
|
void setLegend( QgsMapLayerLegend *legend /Transfer/ );
|
|
%Docstring
|
|
Assign a legend controller to the map layer. The object will be responsible for providing legend items.
|
|
|
|
:param legend: Takes ownership of the object. Can be null pointer
|
|
|
|
.. versionadded:: 2.6
|
|
%End
|
|
|
|
QgsMapLayerLegend *legend() const;
|
|
%Docstring
|
|
Can be null.
|
|
|
|
.. versionadded:: 2.6
|
|
%End
|
|
|
|
QgsMapLayerStyleManager *styleManager() const;
|
|
%Docstring
|
|
Gets access to the layer's style manager. Style manager allows switching between multiple styles.
|
|
|
|
.. versionadded:: 2.8
|
|
%End
|
|
|
|
void setRenderer3D( QgsAbstract3DRenderer *renderer /Transfer/ );
|
|
%Docstring
|
|
Sets 3D renderer for the layer. Takes ownership of the renderer.
|
|
|
|
.. versionadded:: 3.0
|
|
%End
|
|
|
|
QgsAbstract3DRenderer *renderer3D() const;
|
|
%Docstring
|
|
Returns 3D renderer associated with the layer. May be null.
|
|
|
|
.. versionadded:: 3.0
|
|
%End
|
|
|
|
bool isInScaleRange( double scale ) const;
|
|
%Docstring
|
|
Tests whether the layer should be visible at the specified ``scale``.
|
|
The ``scale`` value indicates the scale denominator, e.g. 1000.0 for a 1:1000 map.
|
|
|
|
:return: true if the layer is visible at the given scale.
|
|
|
|
.. versionadded:: 2.16
|
|
|
|
.. seealso:: :py:func:`minimumScale`
|
|
|
|
.. seealso:: :py:func:`maximumScale`
|
|
|
|
.. seealso:: :py:func:`hasScaleBasedVisibility`
|
|
%End
|
|
|
|
double minimumScale() const;
|
|
%Docstring
|
|
Returns the minimum map scale (i.e. most "zoomed out" scale) at which the layer will be visible.
|
|
The scale value indicates the scale denominator, e.g. 1000.0 for a 1:1000 map.
|
|
A scale of 0 indicates no minimum scale visibility.
|
|
|
|
.. note::
|
|
|
|
Scale based visibility is only used if setScaleBasedVisibility() is set to true.
|
|
|
|
.. seealso:: :py:func:`setMinimumScale`
|
|
|
|
.. seealso:: :py:func:`maximumScale`
|
|
|
|
.. seealso:: :py:func:`hasScaleBasedVisibility`
|
|
|
|
.. seealso:: :py:func:`isInScaleRange`
|
|
%End
|
|
|
|
double maximumScale() const;
|
|
%Docstring
|
|
Returns the maximum map scale (i.e. most "zoomed in" scale) at which the layer will be visible.
|
|
The scale value indicates the scale denominator, e.g. 1000.0 for a 1:1000 map.
|
|
A scale of 0 indicates no maximum scale visibility.
|
|
|
|
.. note::
|
|
|
|
Scale based visibility is only used if setScaleBasedVisibility() is set to true.
|
|
|
|
.. seealso:: :py:func:`setMaximumScale`
|
|
|
|
.. seealso:: :py:func:`minimumScale`
|
|
|
|
.. seealso:: :py:func:`hasScaleBasedVisibility`
|
|
|
|
.. seealso:: :py:func:`isInScaleRange`
|
|
%End
|
|
|
|
bool hasScaleBasedVisibility() const;
|
|
%Docstring
|
|
Returns whether scale based visibility is enabled for the layer.
|
|
|
|
:return: true if scale based visibility is enabled
|
|
|
|
.. seealso:: :py:func:`minimumScale`
|
|
|
|
.. seealso:: :py:func:`maximumScale`
|
|
|
|
.. seealso:: :py:func:`setScaleBasedVisibility`
|
|
|
|
.. seealso:: :py:func:`isInScaleRange`
|
|
%End
|
|
|
|
bool hasAutoRefreshEnabled() const;
|
|
%Docstring
|
|
Returns true if auto refresh is enabled for the layer.
|
|
|
|
.. versionadded:: 3.0
|
|
|
|
.. seealso:: :py:func:`autoRefreshInterval`
|
|
|
|
.. seealso:: :py:func:`setAutoRefreshEnabled`
|
|
%End
|
|
|
|
int autoRefreshInterval() const;
|
|
%Docstring
|
|
Returns the auto refresh interval (in milliseconds). Note that
|
|
auto refresh is only active when hasAutoRefreshEnabled() is true.
|
|
|
|
.. versionadded:: 3.0
|
|
|
|
.. seealso:: :py:func:`hasAutoRefreshEnabled`
|
|
|
|
.. seealso:: :py:func:`setAutoRefreshInterval`
|
|
%End
|
|
|
|
void setAutoRefreshInterval( int interval );
|
|
%Docstring
|
|
Sets the auto refresh interval (in milliseconds) for the layer. This
|
|
will cause the layer to be automatically redrawn on a matching interval.
|
|
Note that auto refresh must be enabled by calling setAutoRefreshEnabled().
|
|
|
|
Note that auto refresh triggers deferred repaints of the layer. Any map
|
|
canvas must be refreshed separately in order to view the refreshed layer.
|
|
|
|
.. versionadded:: 3.0
|
|
|
|
.. seealso:: :py:func:`autoRefreshInterval`
|
|
|
|
.. seealso:: :py:func:`setAutoRefreshEnabled`
|
|
%End
|
|
|
|
void setAutoRefreshEnabled( bool enabled );
|
|
%Docstring
|
|
Sets whether auto refresh is enabled for the layer.
|
|
|
|
.. versionadded:: 3.0
|
|
|
|
.. seealso:: :py:func:`hasAutoRefreshEnabled`
|
|
|
|
.. seealso:: :py:func:`setAutoRefreshInterval`
|
|
%End
|
|
|
|
virtual const QgsLayerMetadata &metadata() const;
|
|
%Docstring
|
|
Returns a reference to the layer's metadata store.
|
|
|
|
.. versionadded:: 3.0
|
|
|
|
.. seealso:: :py:func:`setMetadata`
|
|
|
|
.. seealso:: :py:func:`metadataChanged`
|
|
%End
|
|
|
|
virtual void setMetadata( const QgsLayerMetadata &metadata );
|
|
%Docstring
|
|
Sets the layer's ``metadata`` store.
|
|
|
|
.. versionadded:: 3.0
|
|
|
|
.. seealso:: :py:func:`metadata`
|
|
|
|
.. seealso:: :py:func:`metadataChanged`
|
|
%End
|
|
|
|
virtual QString htmlMetadata() const;
|
|
%Docstring
|
|
Obtain a formatted HTML string containing assorted metadata for this layer.
|
|
|
|
.. versionadded:: 3.0
|
|
%End
|
|
|
|
virtual QDateTime timestamp() const;
|
|
%Docstring
|
|
Time stamp of data source in the moment when data/metadata were loaded by provider
|
|
%End
|
|
|
|
virtual QSet<QgsMapLayerDependency> dependencies() const;
|
|
%Docstring
|
|
Gets the list of dependencies. This includes data dependencies set by the user (:py:func:`setDataDependencies`)
|
|
as well as dependencies given by the provider
|
|
|
|
:return: a set of QgsMapLayerDependency
|
|
|
|
.. versionadded:: 3.0
|
|
%End
|
|
|
|
QString refreshOnNotifyMessage() const;
|
|
%Docstring
|
|
Returns the message that should be notified by the provider to triggerRepaint
|
|
|
|
.. versionadded:: 3.0
|
|
%End
|
|
|
|
bool isRefreshOnNotifyEnabled() const;
|
|
%Docstring
|
|
Returns true if the refresh on provider nofification is enabled
|
|
|
|
.. versionadded:: 3.0
|
|
%End
|
|
|
|
public slots:
|
|
|
|
void setMinimumScale( double scale );
|
|
%Docstring
|
|
Sets the minimum map ``scale`` (i.e. most "zoomed out" scale) at which the layer will be visible.
|
|
The ``scale`` value indicates the scale denominator, e.g. 1000.0 for a 1:1000 map.
|
|
A ``scale`` of 0 indicates no minimum scale visibility.
|
|
|
|
.. note::
|
|
|
|
Scale based visibility is only used if setScaleBasedVisibility() is set to true.
|
|
|
|
.. seealso:: :py:func:`minimumScale`
|
|
|
|
.. seealso:: :py:func:`setMaximumScale`
|
|
|
|
.. seealso:: :py:func:`setScaleBasedVisibility`
|
|
%End
|
|
|
|
void setMaximumScale( double scale );
|
|
%Docstring
|
|
Sets the maximum map ``scale`` (i.e. most "zoomed in" scale) at which the layer will be visible.
|
|
The ``scale`` value indicates the scale denominator, e.g. 1000.0 for a 1:1000 map.
|
|
A ``scale`` of 0 indicates no maximum scale visibility.
|
|
|
|
.. note::
|
|
|
|
Scale based visibility is only used if setScaleBasedVisibility() is set to true.
|
|
|
|
.. seealso:: :py:func:`maximumScale`
|
|
|
|
.. seealso:: :py:func:`setMinimumScale`
|
|
|
|
.. seealso:: :py:func:`setScaleBasedVisibility`
|
|
%End
|
|
|
|
void setScaleBasedVisibility( const bool enabled );
|
|
%Docstring
|
|
Sets whether scale based visibility is enabled for the layer.
|
|
|
|
:param enabled: set to true to enable scale based visibility
|
|
|
|
.. seealso:: :py:func:`setMinimumScale`
|
|
|
|
.. seealso:: :py:func:`setMaximumScale`
|
|
|
|
.. seealso:: :py:func:`hasScaleBasedVisibility`
|
|
%End
|
|
|
|
void triggerRepaint( bool deferredUpdate = false );
|
|
%Docstring
|
|
Will advise the map canvas (and any other interested party) that this layer requires to be repainted.
|
|
Will emit a repaintRequested() signal.
|
|
If ``deferredUpdate`` is true then the layer will only be repainted when the canvas is next
|
|
re-rendered, and will not trigger any canvas redraws itself.
|
|
|
|
.. note::
|
|
|
|
in 2.6 function moved from vector/raster subclasses to QgsMapLayer
|
|
%End
|
|
|
|
void emitStyleChanged();
|
|
%Docstring
|
|
Triggers an emission of the styleChanged() signal.
|
|
|
|
.. versionadded:: 2.16
|
|
%End
|
|
|
|
virtual bool setDependencies( const QSet<QgsMapLayerDependency> &layers );
|
|
%Docstring
|
|
Sets the list of dependencies.
|
|
|
|
.. seealso:: :py:func:`dependencies`
|
|
|
|
:param layers: set of QgsMapLayerDependency. Only user-defined dependencies will be added
|
|
|
|
:return: false if a dependency cycle has been detected
|
|
|
|
.. versionadded:: 3.0
|
|
%End
|
|
|
|
void setRefreshOnNotifyEnabled( bool enabled );
|
|
%Docstring
|
|
Set whether provider notification is connected to triggerRepaint
|
|
|
|
.. versionadded:: 3.0
|
|
%End
|
|
|
|
void setRefreshOnNofifyMessage( const QString &message );
|
|
%Docstring
|
|
Set the notification message that triggers repaine
|
|
If refresh on notification is enabled, the notification will triggerRepaint only
|
|
if the notification message is equal to:param message:
|
|
|
|
.. versionadded:: 3.0
|
|
%End
|
|
|
|
signals:
|
|
|
|
void statusChanged( const QString &status );
|
|
%Docstring
|
|
Emit a signal with status (e.g. to be caught by QgisApp and display a msg on status bar)
|
|
%End
|
|
|
|
void nameChanged();
|
|
%Docstring
|
|
Emitted when the name has been changed
|
|
|
|
.. versionadded:: 2.16
|
|
%End
|
|
|
|
void crsChanged();
|
|
%Docstring
|
|
Emit a signal that layer's CRS has been reset
|
|
%End
|
|
|
|
void repaintRequested( bool deferredUpdate = false );
|
|
%Docstring
|
|
By emitting this signal the layer tells that either appearance or content have been changed
|
|
and any view showing the rendered layer should refresh itself.
|
|
If ``deferredUpdate`` is true then the layer will only be repainted when the canvas is next
|
|
re-rendered, and will not trigger any canvas redraws itself.
|
|
%End
|
|
|
|
void recalculateExtents() const;
|
|
%Docstring
|
|
This is used to send a request that any mapcanvas using this layer update its extents
|
|
%End
|
|
|
|
void dataChanged();
|
|
%Docstring
|
|
Data of layer changed
|
|
%End
|
|
|
|
void blendModeChanged( QPainter::CompositionMode blendMode );
|
|
%Docstring
|
|
Signal emitted when the blend mode is changed, through :py:func:`QgsMapLayer.setBlendMode()`
|
|
%End
|
|
|
|
void rendererChanged();
|
|
%Docstring
|
|
Signal emitted when renderer is changed.
|
|
|
|
.. seealso:: :py:func:`styleChanged`
|
|
%End
|
|
|
|
void styleChanged();
|
|
%Docstring
|
|
Signal emitted whenever a change affects the layer's style. Ie this may be triggered
|
|
by renderer changes, label style changes, or other style changes such as blend
|
|
mode or layer opacity changes.
|
|
|
|
.. versionadded:: 2.16
|
|
|
|
.. seealso:: :py:func:`rendererChanged`
|
|
%End
|
|
|
|
void legendChanged();
|
|
%Docstring
|
|
Signal emitted when legend of the layer has changed
|
|
|
|
.. versionadded:: 2.6
|
|
%End
|
|
|
|
void renderer3DChanged();
|
|
%Docstring
|
|
Signal emitted when 3D renderer associated with the layer has changed.
|
|
|
|
.. versionadded:: 3.0
|
|
%End
|
|
|
|
void configChanged();
|
|
%Docstring
|
|
Emitted whenever the configuration is changed. The project listens to this signal
|
|
to be marked as dirty.
|
|
%End
|
|
|
|
void dependenciesChanged();
|
|
%Docstring
|
|
Emitted when dependencies are changed.
|
|
%End
|
|
|
|
void willBeDeleted();
|
|
%Docstring
|
|
Emitted in the destructor when the layer is about to be deleted,
|
|
but it is still in a perfectly valid state: the last chance for
|
|
other pieces of code for some cleanup if they use the layer.
|
|
|
|
.. versionadded:: 3.0
|
|
%End
|
|
|
|
void autoRefreshIntervalChanged( int interval );
|
|
%Docstring
|
|
Emitted when the auto refresh interval changes.
|
|
|
|
.. seealso:: :py:func:`setAutoRefreshInterval`
|
|
|
|
.. versionadded:: 3.0
|
|
%End
|
|
|
|
void metadataChanged();
|
|
%Docstring
|
|
Emitted when the layer's metadata is changed.
|
|
|
|
.. seealso:: :py:func:`setMetadata`
|
|
|
|
.. seealso:: :py:func:`metadata`
|
|
|
|
.. versionadded:: 3.0
|
|
%End
|
|
|
|
protected:
|
|
|
|
void clone( QgsMapLayer *layer ) const;
|
|
%Docstring
|
|
Copies attributes like name, short name, ... into another layer.
|
|
|
|
:param layer: The copy recipient
|
|
|
|
.. versionadded:: 3.0
|
|
%End
|
|
|
|
virtual void setExtent( const QgsRectangle &rect );
|
|
%Docstring
|
|
Sets the extent
|
|
%End
|
|
|
|
void setValid( bool valid );
|
|
%Docstring
|
|
Sets whether layer is valid or not - should be used in constructor.
|
|
%End
|
|
|
|
virtual bool readXml( const QDomNode &layer_node, QgsReadWriteContext &context );
|
|
%Docstring
|
|
Called by readLayerXML(), used by children to read state specific to them from
|
|
project files.
|
|
%End
|
|
|
|
virtual bool writeXml( QDomNode &layer_node, QDomDocument &document, const QgsReadWriteContext &context ) const;
|
|
%Docstring
|
|
Called by writeLayerXML(), used by children to write state specific to them to
|
|
project files.
|
|
%End
|
|
|
|
virtual QString encodedSource( const QString &source, const QgsReadWriteContext &context ) const;
|
|
%Docstring
|
|
Called by writeLayerXML(), used by derived classes to encode provider's specific data
|
|
source to project files. Typically resolving absolute or relative paths, usernames and
|
|
passwords or drivers prefixes ("HDF5:")
|
|
|
|
:param source: data source to encode, typically :py:func:`QgsMapLayer.source()`
|
|
:param context: writing context (e.g. for conversion between relative and absolute paths)
|
|
|
|
:return: encoded source, typically to be written in the dom element "datasource"
|
|
|
|
.. versionadded:: 3.2
|
|
%End
|
|
|
|
virtual QString decodedSource( const QString &source, const QString &dataProvider, const QgsReadWriteContext &context ) const;
|
|
%Docstring
|
|
Called by readLayerXML(), used by derived classes to decode provider's specific data
|
|
source from project files. Typically resolving absolute or relative paths, usernames and
|
|
passwords or drivers prefixes ("HDF5:")
|
|
|
|
:param source: data source to decode, typically read from layer's dom element "datasource"
|
|
:param dataProvider: string identification of data provider (e.g. "ogr"), typically read from layer's dom element
|
|
:param context: reading context (e.g. for conversion between relative and absolute paths)
|
|
|
|
:return: decoded source, typically to be used as the layer's datasource
|
|
|
|
.. versionadded:: 3.2
|
|
%End
|
|
|
|
void readCustomProperties( const QDomNode &layerNode, const QString &keyStartsWith = QString() );
|
|
%Docstring
|
|
Read custom properties from project file.
|
|
|
|
:param layerNode: note to read from
|
|
:param keyStartsWith: reads only properties starting with the specified string (or all if the string is empty)*
|
|
%End
|
|
|
|
void writeCustomProperties( QDomNode &layerNode, QDomDocument &doc ) const;
|
|
%Docstring
|
|
Write custom properties to project file.
|
|
%End
|
|
|
|
void readStyleManager( const QDomNode &layerNode );
|
|
%Docstring
|
|
Read style manager's configuration (if any). To be called by subclasses.
|
|
%End
|
|
void writeStyleManager( QDomNode &layerNode, QDomDocument &doc ) const;
|
|
%Docstring
|
|
Write style manager's configuration (if exists). To be called by subclasses.
|
|
%End
|
|
|
|
void writeCommonStyle( QDomElement &layerElement, QDomDocument &document, const QgsReadWriteContext &context ) const;
|
|
%Docstring
|
|
Write style data common to all layer types
|
|
|
|
.. versionadded:: 3.0
|
|
%End
|
|
|
|
void readCommonStyle( const QDomElement &layerElement, const QgsReadWriteContext &context );
|
|
%Docstring
|
|
Read style data common to all layer types
|
|
|
|
.. versionadded:: 3.0
|
|
%End
|
|
|
|
|
|
void appendError( const QgsErrorMessage &error );
|
|
%Docstring
|
|
Add error message
|
|
%End
|
|
void setError( const QgsError &error );
|
|
%Docstring
|
|
Sets error message
|
|
%End
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
bool hasDependencyCycle( const QSet<QgsMapLayerDependency> &layers ) const;
|
|
%Docstring
|
|
Checks whether a new set of dependencies will introduce a cycle
|
|
%End
|
|
|
|
|
|
};
|
|
|
|
|
|
|
|
/************************************************************************
|
|
* This file has been generated automatically from *
|
|
* *
|
|
* src/core/qgsmaplayer.h *
|
|
* *
|
|
* Do not edit manually ! Edit header and run scripts/sipify.pl again *
|
|
************************************************************************/
|