mirror of
https://github.com/qgis/QGIS.git
synced 2025-10-31 00:06:02 -04:00
2332 lines
71 KiB
Plaintext
2332 lines
71 KiB
Plaintext
/************************************************************************
|
|
* This file has been generated automatically from *
|
|
* *
|
|
* src/core/qgsmaplayer.h *
|
|
* *
|
|
* Do not edit manually ! Edit header and run scripts/sipify.py again *
|
|
************************************************************************/
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
class QgsMapLayer : QObject
|
|
{
|
|
%Docstring(signature="appended")
|
|
Base class for all map layer types.
|
|
This is the base class for all map layer types (vector, raster).
|
|
%End
|
|
|
|
%TypeHeaderCode
|
|
#include "qgsmaplayer.h"
|
|
%End
|
|
%ConvertToSubClassCode
|
|
QgsMapLayer *layer = qobject_cast<QgsMapLayer *>( sipCpp );
|
|
|
|
sipType = 0;
|
|
|
|
if ( layer )
|
|
{
|
|
switch ( layer->type() )
|
|
{
|
|
case Qgis::LayerType::Vector:
|
|
sipType = sipType_QgsVectorLayer;
|
|
break;
|
|
case Qgis::LayerType::Raster:
|
|
sipType = sipType_QgsRasterLayer;
|
|
break;
|
|
case Qgis::LayerType::Plugin:
|
|
sipType = sipType_QgsPluginLayer;
|
|
break;
|
|
case Qgis::LayerType::Mesh:
|
|
sipType = sipType_QgsMeshLayer;
|
|
break;
|
|
case Qgis::LayerType::VectorTile:
|
|
sipType = sipType_QgsVectorTileLayer;
|
|
break;
|
|
case Qgis::LayerType::Annotation:
|
|
sipType = sipType_QgsAnnotationLayer;
|
|
break;
|
|
case Qgis::LayerType::PointCloud:
|
|
sipType = sipType_QgsPointCloudLayer;
|
|
break;
|
|
case Qgis::LayerType::Group:
|
|
sipType = sipType_QgsGroupLayer;
|
|
break;
|
|
case Qgis::LayerType::TiledScene:
|
|
sipType = sipType_QgsTiledSceneLayer;
|
|
break;
|
|
default:
|
|
sipType = nullptr;
|
|
break;
|
|
}
|
|
}
|
|
%End
|
|
public:
|
|
|
|
enum PropertyType /BaseType=IntEnum/
|
|
{
|
|
Style,
|
|
Metadata,
|
|
};
|
|
|
|
enum LayerFlag /BaseType=IntEnum/
|
|
{
|
|
Identifiable,
|
|
Removable,
|
|
Searchable,
|
|
Private,
|
|
};
|
|
typedef QFlags<QgsMapLayer::LayerFlag> LayerFlags;
|
|
|
|
|
|
enum StyleCategory /BaseType=IntEnum/
|
|
{
|
|
LayerConfiguration,
|
|
Symbology,
|
|
Symbology3D,
|
|
Labeling,
|
|
Fields,
|
|
Forms,
|
|
Actions,
|
|
MapTips,
|
|
Diagrams,
|
|
AttributeTable,
|
|
Rendering,
|
|
CustomProperties,
|
|
GeometryOptions,
|
|
Relations,
|
|
Temporal,
|
|
Legend,
|
|
Elevation,
|
|
Notes,
|
|
AllStyleCategories
|
|
};
|
|
typedef QFlags<QgsMapLayer::StyleCategory> StyleCategories;
|
|
|
|
|
|
QgsMapLayer( Qgis::LayerType type = Qgis::LayerType::Vector, const QString &name = QString(), const QString &source = QString() );
|
|
%Docstring
|
|
Constructor for QgsMapLayer
|
|
|
|
:param type: layer type
|
|
:param name: display name for the layer
|
|
:param source: datasource of layer
|
|
%End
|
|
|
|
~QgsMapLayer();
|
|
|
|
|
|
virtual QgsMapLayer *clone() const = 0;
|
|
%Docstring
|
|
Returns a new instance equivalent to this one except for the id which
|
|
is still unique.
|
|
|
|
:return: a new layer instance
|
|
%End
|
|
|
|
Qgis::LayerType type() const;
|
|
%Docstring
|
|
Returns the type of the layer.
|
|
%End
|
|
|
|
QgsMapLayer::LayerFlags flags() const;
|
|
%Docstring
|
|
Returns the flags for this layer.
|
|
|
|
.. note::
|
|
|
|
Flags are options specified by the user used for the UI but are not preventing any API call.
|
|
For instance, even if the Removable flag is not set, the layer can still be removed with the API
|
|
but the action will not be listed in the legend menu.
|
|
|
|
.. seealso:: :py:func:`properties`
|
|
|
|
.. versionadded:: 3.4
|
|
%End
|
|
|
|
void setFlags( QgsMapLayer::LayerFlags flags );
|
|
%Docstring
|
|
Returns the flags for this layer.
|
|
|
|
.. note::
|
|
|
|
Flags are options specified by the user used for the UI but are not preventing any API call.
|
|
For instance, even if the Removable flag is not set, the layer can still be removed with the API
|
|
but the action will not be listed in the legend menu.
|
|
|
|
.. seealso:: :py:func:`properties`
|
|
|
|
.. versionadded:: 3.4
|
|
%End
|
|
|
|
virtual Qgis::MapLayerProperties properties() const;
|
|
%Docstring
|
|
Returns the map layer properties of this layer.
|
|
|
|
.. note::
|
|
|
|
:py:func:`~QgsMapLayer.properties` differ from :py:func:`~QgsMapLayer.flags` in that :py:func:`~QgsMapLayer.flags` are user settable, and reflect options that
|
|
users can enable for map layers. In contrast :py:func:`~QgsMapLayer.properties` are reflections of inherent capabilities
|
|
for the layer, which cannot be directly changed by users.
|
|
|
|
.. versionadded:: 3.22
|
|
%End
|
|
|
|
static QString extensionPropertyType( PropertyType type );
|
|
%Docstring
|
|
Returns the extension of a Property.
|
|
|
|
:return: The extension
|
|
%End
|
|
|
|
QString id() const;
|
|
%Docstring
|
|
Returns the layer's unique ID, which is used to access this layer from :py:class:`QgsProject`.
|
|
|
|
.. seealso:: :py:func:`setId`
|
|
|
|
.. seealso:: :py:func:`idChanged`
|
|
%End
|
|
|
|
bool setId( const QString &id );
|
|
%Docstring
|
|
Sets the layer's ``id``.
|
|
|
|
Returns ``True`` if the layer ID was successfully changed, or ``False`` if it could not be changed (e.g. because
|
|
the layer is owned by a :py:class:`QgsProject` or :py:class:`QgsMapLayerStore`).
|
|
|
|
.. warning::
|
|
|
|
It is the caller's responsibility to ensure that the layer ID is unique in the desired context.
|
|
Generally this method should not be called, and the auto generated ID should be used instead.
|
|
|
|
.. warning::
|
|
|
|
This method should not be called on layers which already belong to a :py:class:`QgsProject` or :py:class:`QgsMapLayerStore`.
|
|
|
|
.. seealso:: :py:func:`id`
|
|
|
|
.. seealso:: :py:func:`idChanged`
|
|
|
|
.. versionadded:: 3.38
|
|
%End
|
|
|
|
void setName( const QString &name );
|
|
%Docstring
|
|
Set the display ``name`` of the layer.
|
|
|
|
.. seealso:: :py:func:`name`
|
|
%End
|
|
|
|
QString name() const;
|
|
%Docstring
|
|
Returns the display name of the layer.
|
|
|
|
.. seealso:: :py:func:`setName`
|
|
%End
|
|
|
|
virtual QgsDataProvider *dataProvider();
|
|
%Docstring
|
|
Returns the layer's data provider, it may be ``None``.
|
|
%End
|
|
|
|
|
|
void setShortName( const QString &shortName ) /Deprecated/;
|
|
%Docstring
|
|
Sets the short name of the layer used by QGIS Server to identify the layer.
|
|
|
|
.. deprecated:: QGIS 3.38
|
|
use :py:func:`~QgsMapLayer.serverProperties`->:py:func:`~QgsMapLayer.setShortName` instead.
|
|
%End
|
|
|
|
QString shortName() const /Deprecated/;
|
|
%Docstring
|
|
Returns the short name of the layer used by QGIS Server to identify the layer.
|
|
|
|
.. deprecated:: QGIS 3.38
|
|
use :py:func:`~QgsMapLayer.serverProperties`->:py:func:`~QgsMapLayer.shortName` instead.
|
|
%End
|
|
|
|
void setTitle( const QString &title ) /Deprecated/;
|
|
%Docstring
|
|
Sets the title of the layer used by QGIS Server in GetCapabilities request.
|
|
|
|
.. deprecated:: QGIS 3.38
|
|
use :py:func:`~QgsMapLayer.serverProperties`->:py:func:`~QgsMapLayer.setTitle` instead.
|
|
%End
|
|
|
|
QString title() const /Deprecated/;
|
|
%Docstring
|
|
Returns the title of the layer used by QGIS Server in GetCapabilities request.
|
|
|
|
.. deprecated:: QGIS 3.38
|
|
use :py:func:`~QgsMapLayer.serverProperties`->:py:func:`~QgsMapLayer.title` instead.
|
|
%End
|
|
|
|
void setAbstract( const QString &abstract ) /Deprecated/;
|
|
%Docstring
|
|
Sets the abstract of the layer used by QGIS Server in GetCapabilities request.
|
|
|
|
.. deprecated:: QGIS 3.38
|
|
use :py:func:`~QgsMapLayer.serverProperties`->:py:func:`~QgsMapLayer.setAbstract` instead.
|
|
%End
|
|
|
|
QString abstract() const /Deprecated/;
|
|
%Docstring
|
|
Returns the abstract of the layer used by QGIS Server in GetCapabilities request.
|
|
|
|
.. deprecated:: QGIS 3.38
|
|
use :py:func:`~QgsMapLayer.serverProperties`->:py:func:`~QgsMapLayer.abstract` instead.
|
|
%End
|
|
|
|
void setKeywordList( const QString &keywords ) /Deprecated/;
|
|
%Docstring
|
|
Sets the keyword list of the layerused by QGIS Server in GetCapabilities request.
|
|
|
|
.. deprecated:: QGIS 3.38
|
|
use :py:func:`~QgsMapLayer.serverProperties`->:py:func:`~QgsMapLayer.setKeywordList` instead.
|
|
%End
|
|
|
|
QString keywordList() const /Deprecated/;
|
|
%Docstring
|
|
Returns the keyword list of the layer used by QGIS Server in GetCapabilities request.
|
|
|
|
.. deprecated:: QGIS 3.38
|
|
use :py:func:`~QgsMapLayer.serverProperties`->:py:func:`~QgsMapLayer.keywordList` instead.
|
|
%End
|
|
|
|
void setDataUrl( const QString &dataUrl ) /Deprecated/;
|
|
%Docstring
|
|
Sets the DataUrl of the layer used by QGIS Server in GetCapabilities request.
|
|
|
|
.. deprecated:: QGIS 3.38
|
|
use :py:func:`~QgsMapLayer.serverProperties`->:py:func:`~QgsMapLayer.setDataUrl` instead.
|
|
%End
|
|
|
|
QString dataUrl() const /Deprecated/;
|
|
%Docstring
|
|
Returns the DataUrl of the layer used by QGIS Server in GetCapabilities request.
|
|
|
|
.. deprecated:: QGIS 3.38
|
|
use :py:func:`~QgsMapLayer.serverProperties`->:py:func:`~QgsMapLayer.dataUrl` instead.
|
|
%End
|
|
|
|
void setDataUrlFormat( const QString &dataUrlFormat ) /Deprecated/;
|
|
%Docstring
|
|
Sets the DataUrl format of the layer used by QGIS Server in GetCapabilities request.
|
|
|
|
.. deprecated:: QGIS 3.38
|
|
use :py:func:`~QgsMapLayer.serverProperties`->:py:func:`~QgsMapLayer.setDataUrlFormat` instead.
|
|
%End
|
|
|
|
QString dataUrlFormat() const /Deprecated/;
|
|
%Docstring
|
|
Returns the DataUrl format of the layer used by QGIS Server in GetCapabilities request.
|
|
|
|
.. deprecated:: QGIS 3.38
|
|
use :py:func:`~QgsMapLayer.serverProperties`->:py:func:`~QgsMapLayer.dataUrlFormat` instead.
|
|
%End
|
|
|
|
void setAttribution( const QString &attrib ) /Deprecated/;
|
|
%Docstring
|
|
Sets the attribution of the layerused by QGIS Server in GetCapabilities request.
|
|
|
|
.. deprecated:: QGIS 3.38
|
|
use :py:func:`~QgsMapLayer.serverProperties`->:py:func:`~QgsMapLayer.setAttribution` instead.
|
|
%End
|
|
|
|
QString attribution() const /Deprecated/;
|
|
%Docstring
|
|
Returns the attribution of the layer used by QGIS Server in GetCapabilities request.
|
|
|
|
.. deprecated:: QGIS 3.38
|
|
use :py:func:`~QgsMapLayer.serverProperties`->:py:func:`~QgsMapLayer.attribution` instead.
|
|
%End
|
|
|
|
void setAttributionUrl( const QString &attribUrl ) /Deprecated/;
|
|
%Docstring
|
|
Sets the attribution URL of the layer used by QGIS Server in GetCapabilities request.
|
|
|
|
.. deprecated:: QGIS 3.38
|
|
use :py:func:`~QgsMapLayer.serverProperties`->:py:func:`~QgsMapLayer.setAttributionUrl` instead.
|
|
%End
|
|
|
|
QString attributionUrl() const /Deprecated/;
|
|
%Docstring
|
|
Returns the attribution URL of the layer used by QGIS Server in GetCapabilities request.
|
|
|
|
.. deprecated:: QGIS 3.38
|
|
use :py:func:`~QgsMapLayer.serverProperties`->:py:func:`~QgsMapLayer.attributionUrl` instead.
|
|
%End
|
|
|
|
|
|
QgsMapLayerServerProperties *serverProperties();
|
|
%Docstring
|
|
Returns QGIS Server Properties for the map layer
|
|
|
|
.. versionadded:: 3.22
|
|
%End
|
|
void setMetadataUrl( const QString &metaUrl ) /Deprecated/;
|
|
%Docstring
|
|
Sets the metadata URL of the layer
|
|
used by QGIS Server in GetCapabilities request.
|
|
MetadataUrl is a a link to the detailed, standardized metadata about the data.
|
|
Since QGIS 3.22, it edits the first metadata URL link.
|
|
|
|
.. seealso:: :py:func:`serverProperties`
|
|
|
|
.. deprecated:: QGIS 3.22
|
|
%End
|
|
|
|
QString metadataUrl() const /Deprecated/;
|
|
%Docstring
|
|
Returns the metadata URL of the layer
|
|
used by QGIS Server in GetCapabilities request.
|
|
MetadataUrl is a a link to the detailed, standardized metadata about the data.
|
|
Since QGIS 3.22, it returns the first metadata URL link.
|
|
|
|
:return: the layer metadata URL
|
|
|
|
.. seealso:: :py:func:`serverProperties`
|
|
|
|
.. deprecated:: QGIS 3.22
|
|
%End
|
|
|
|
void setMetadataUrlType( const QString &metaUrlType ) /Deprecated/;
|
|
%Docstring
|
|
Set the metadata type of the layer
|
|
used by QGIS Server in GetCapabilities request
|
|
MetadataUrlType indicates the standard to which the metadata complies.
|
|
Since QGIS 3.22, it edits the first metadata URL type.
|
|
|
|
.. seealso:: :py:func:`serverProperties`
|
|
|
|
.. deprecated:: QGIS 3.22
|
|
%End
|
|
|
|
QString metadataUrlType() const /Deprecated/;
|
|
%Docstring
|
|
Returns the metadata type of the layer
|
|
used by QGIS Server in GetCapabilities request.
|
|
MetadataUrlType indicates the standard to which the metadata complies.
|
|
Since QGIS 3.22, it returns the first metadata URL type.
|
|
|
|
:return: the layer metadata type
|
|
|
|
.. seealso:: :py:func:`serverProperties`
|
|
|
|
.. deprecated:: QGIS 3.22
|
|
%End
|
|
|
|
void setMetadataUrlFormat( const QString &metaUrlFormat ) /Deprecated/;
|
|
%Docstring
|
|
Sets the metadata format of the layer
|
|
used by QGIS Server in GetCapabilities request.
|
|
MetadataUrlType indicates how the metadata is structured.
|
|
Since QGIS 3.22, it edits the first metadata URL format.
|
|
|
|
.. seealso:: :py:func:`serverProperties`
|
|
|
|
.. deprecated:: QGIS 3.22
|
|
%End
|
|
|
|
QString metadataUrlFormat() const /Deprecated/;
|
|
%Docstring
|
|
Returns the metadata format of the layer
|
|
used by QGIS Server in GetCapabilities request.
|
|
MetadataUrlType indicates how the metadata is structured.
|
|
Since QGIS 3.22, it returns the first metadata URL format.
|
|
|
|
:return: the layer metadata format
|
|
|
|
.. seealso:: :py:func:`serverProperties`
|
|
|
|
.. deprecated:: QGIS 3.22
|
|
%End
|
|
|
|
void setBlendMode( QPainter::CompositionMode blendMode );
|
|
%Docstring
|
|
Set the blending mode used for rendering a layer.
|
|
|
|
:param blendMode: new blending mode
|
|
|
|
.. seealso:: :py:func:`blendMode`
|
|
%End
|
|
|
|
QPainter::CompositionMode blendMode() const;
|
|
%Docstring
|
|
Returns the current blending mode for a layer.
|
|
|
|
.. seealso:: :py:func:`setBlendMode`
|
|
%End
|
|
|
|
virtual void setOpacity( double opacity );
|
|
%Docstring
|
|
Sets the ``opacity`` for the layer, where ``opacity`` is a value between 0 (totally transparent)
|
|
and 1.0 (fully opaque).
|
|
|
|
.. seealso:: :py:func:`opacity`
|
|
|
|
.. seealso:: :py:func:`opacityChanged`
|
|
|
|
.. note::
|
|
|
|
Prior to QGIS 3.18, this method was available for vector layers only
|
|
|
|
.. versionadded:: 3.18
|
|
%End
|
|
|
|
virtual double opacity() const;
|
|
%Docstring
|
|
Returns the opacity for the layer, where opacity is a value between 0 (totally transparent)
|
|
and 1.0 (fully opaque).
|
|
|
|
.. seealso:: :py:func:`setOpacity`
|
|
|
|
.. seealso:: :py:func:`opacityChanged`
|
|
|
|
.. note::
|
|
|
|
Prior to QGIS 3.18, this method was available for vector layers only
|
|
|
|
.. versionadded:: 3.18
|
|
%End
|
|
|
|
bool readOnly() const;
|
|
%Docstring
|
|
Returns if this layer is read only.
|
|
%End
|
|
|
|
virtual void reload();
|
|
%Docstring
|
|
Synchronises with changes in the datasource
|
|
%End
|
|
|
|
virtual QgsMapLayerRenderer *createMapRenderer( QgsRenderContext &rendererContext ) = 0 /Factory/;
|
|
%Docstring
|
|
Returns new instance of :py:class:`QgsMapLayerRenderer` that will be used for rendering of given context
|
|
%End
|
|
|
|
virtual QgsRectangle extent() const;
|
|
%Docstring
|
|
Returns the extent of the layer.
|
|
%End
|
|
|
|
virtual QgsBox3D extent3D() const;
|
|
%Docstring
|
|
Returns the 3D extent of the layer.
|
|
|
|
.. versionadded:: 3.36
|
|
%End
|
|
|
|
QgsRectangle wgs84Extent( bool forceRecalculate = false ) const;
|
|
%Docstring
|
|
Returns the WGS84 extent (EPSG:4326) of the layer according to
|
|
ReadFlag.FlagTrustLayerMetadata. If that flag is activated, then the
|
|
WGS84 extent read in the qgs project is returned. Otherwise, the actual
|
|
WGS84 extent is returned.
|
|
|
|
:param forceRecalculate: True to return the current WGS84 extent whatever the read flags
|
|
|
|
.. versionadded:: 3.20
|
|
%End
|
|
|
|
bool isValid() const;
|
|
%Docstring
|
|
Returns the status of the layer. An invalid layer is one which has a bad datasource
|
|
or other problem. Child classes set this flag when initialized.
|
|
|
|
:return: ``True`` if the layer is valid and can be accessed
|
|
%End
|
|
|
|
QString publicSource( bool hidePassword = false ) const;
|
|
%Docstring
|
|
Gets a version of the internal layer definition that has sensitive
|
|
bits removed (for example, the password). This function should
|
|
be used when displaying the source name for general viewing.
|
|
|
|
:param hidePassword: False, if the password should be removed or replaced by an arbitrary string, since QGIS 3.34
|
|
|
|
.. seealso:: :py:func:`source`
|
|
%End
|
|
|
|
QString source() const;
|
|
%Docstring
|
|
Returns the source for the layer. This source may contain usernames, passwords
|
|
and other sensitive information.
|
|
|
|
.. seealso:: :py:func:`publicSource`
|
|
%End
|
|
|
|
virtual QStringList subLayers() const;
|
|
%Docstring
|
|
Returns the sublayers of this layer.
|
|
(Useful for providers that manage their own layers, such as WMS).
|
|
%End
|
|
|
|
virtual void setLayerOrder( const QStringList &layers );
|
|
%Docstring
|
|
Reorders the *previously selected* sublayers of this layer from bottom to top.
|
|
(Useful for providers that manage their own layers, such as WMS).
|
|
%End
|
|
|
|
virtual void setSubLayerVisibility( const QString &name, bool visible );
|
|
%Docstring
|
|
Set the visibility of the given sublayer name.
|
|
|
|
:param name: sublayer name
|
|
:param visible: sublayer visibility
|
|
%End
|
|
|
|
virtual bool supportsEditing() const;
|
|
%Docstring
|
|
Returns whether the layer supports editing or not.
|
|
|
|
:return: ``False`` if the layer is read only or the data provider has no editing capabilities.
|
|
|
|
.. note::
|
|
|
|
default implementation returns ``False``.
|
|
|
|
.. versionadded:: 3.22
|
|
%End
|
|
|
|
virtual bool isEditable() const;
|
|
%Docstring
|
|
Returns ``True`` if the layer can be edited.
|
|
%End
|
|
|
|
virtual bool isModified() const;
|
|
%Docstring
|
|
Returns ``True`` if the layer has been modified since last commit/save.
|
|
|
|
.. note::
|
|
|
|
default implementation returns ``False``.
|
|
|
|
.. versionadded:: 3.22
|
|
%End
|
|
|
|
virtual bool isSpatial() const;
|
|
%Docstring
|
|
Returns ``True`` if the layer is considered a spatial layer, ie it has some form of geometry associated with it.
|
|
%End
|
|
|
|
virtual bool isTemporary() const;
|
|
%Docstring
|
|
Returns ``True`` if the layer is considered a temporary layer.
|
|
|
|
These include memory-only layers such as those created by the "memory" data provider, layers
|
|
stored inside a local temporary folder (such as the "/tmp" folder on Linux)
|
|
or layer with temporary data (as temporary mesh layer dataset)
|
|
|
|
.. versionadded:: 3.10.1
|
|
%End
|
|
|
|
enum ReadFlag /BaseType=IntEnum/
|
|
{
|
|
FlagDontResolveLayers,
|
|
FlagTrustLayerMetadata,
|
|
FlagReadExtentFromXml,
|
|
FlagForceReadOnly,
|
|
};
|
|
typedef QFlags<QgsMapLayer::ReadFlag> ReadFlags;
|
|
|
|
|
|
bool readLayerXml( const QDomElement &layerElement, QgsReadWriteContext &context,
|
|
QgsMapLayer::ReadFlags flags = QgsMapLayer::ReadFlags(), QgsDataProvider *preloadedProvider /Transfer/ = 0 );
|
|
%Docstring
|
|
Sets state from DOM document
|
|
|
|
:param layerElement: The DOM element corresponding to ``maplayer'' tag
|
|
:param context: writing context (e.g. for conversion between relative and absolute paths)
|
|
:param flags: optional argument which can be used to control layer reading behavior.
|
|
:param preloadedProvider: optional preloaded data provider that will be used as data provider for this layer, takes ownership (since QGIS 3.32)
|
|
\note
|
|
|
|
The DOM node corresponds to a DOM document project file XML element read
|
|
by :py:class:`QgsProject`.
|
|
|
|
This, in turn, calls :py:func:`~QgsMapLayer.readXml` (and then :py:func:`~QgsMapLayer.readSymbology`), which is overridable
|
|
by sub-classes so that they can read their own specific state from the given DOM node.
|
|
|
|
Invoked by :py:func:`QgsProject.read()`.
|
|
|
|
:return: ``True`` if successful
|
|
%End
|
|
|
|
bool writeLayerXml( QDomElement &layerElement, QDomDocument &document, const QgsReadWriteContext &context ) const;
|
|
%Docstring
|
|
Stores state in DOM node
|
|
|
|
:param layerElement: is a DOM element corresponding to ``maplayer'' tag
|
|
:param document: is a the DOM document being written
|
|
:param context: reading context (e.g. for conversion between relative and absolute paths)
|
|
\note
|
|
|
|
The DOM node corresponds to a DOM document project file XML element to be
|
|
written by :py:class:`QgsProject`.
|
|
|
|
This, in turn, calls :py:func:`~QgsMapLayer.writeXml` (and then writeSymbology), which is over-rideable
|
|
by sub-classes so that they can write their own specific state to the given DOM node.
|
|
|
|
Invoked by :py:func:`QgsProject.write()`.
|
|
|
|
:return: ``True`` if successful
|
|
%End
|
|
|
|
virtual void resolveReferences( QgsProject *project );
|
|
%Docstring
|
|
Resolve references to other layers (kept as layer IDs after reading XML) into layer objects.
|
|
%End
|
|
|
|
QStringList customPropertyKeys() const;
|
|
%Docstring
|
|
Returns list of all keys within custom properties. Properties are stored in a map and saved in project file.
|
|
|
|
.. seealso:: :py:func:`customProperty`
|
|
%End
|
|
|
|
void setCustomProperty( const QString &key, const QVariant &value );
|
|
%Docstring
|
|
Set a custom property for layer. Properties are stored in a map and saved in project file.
|
|
|
|
.. seealso:: :py:func:`customProperty`
|
|
|
|
.. seealso:: :py:func:`removeCustomProperty`
|
|
%End
|
|
|
|
QVariant customProperty( const QString &value, const QVariant &defaultValue = QVariant() ) const;
|
|
%Docstring
|
|
Read a custom property from layer. Properties are stored in a map and saved in project file.
|
|
|
|
.. seealso:: :py:func:`setCustomProperty`
|
|
%End
|
|
|
|
void setCustomProperties( const QgsObjectCustomProperties &properties );
|
|
%Docstring
|
|
Set custom properties for layer. Current properties are dropped.
|
|
%End
|
|
|
|
const QgsObjectCustomProperties &customProperties() const;
|
|
%Docstring
|
|
Read all custom properties from layer. Properties are stored in a map and saved in project file.
|
|
|
|
.. seealso:: :py:func:`setCustomProperties`
|
|
|
|
.. versionadded:: 3.14
|
|
%End
|
|
|
|
virtual int listStylesInDatabase( QStringList &ids /Out/, QStringList &names /Out/,
|
|
QStringList &descriptions /Out/, QString &msgError /Out/ );
|
|
%Docstring
|
|
Lists all the style in db split into related to the layer and not related to
|
|
|
|
:param ids: the list in which will be stored the style db ids
|
|
:param names: the list in which will be stored the style names
|
|
|
|
:return: - the number of styles related to current layer (-1 on not implemented)
|
|
- descriptions: the list in which will be stored the style descriptions
|
|
- msgError: will be set to a descriptive error message if any occurs
|
|
|
|
.. note::
|
|
|
|
Since QGIS 3.2 Styles related to the layer are ordered with the default style first then by update time for Postgres, MySQL and Spatialite.
|
|
%End
|
|
|
|
virtual QString getStyleFromDatabase( const QString &styleId, QString &msgError /Out/ );
|
|
%Docstring
|
|
Returns the named style corresponding to style id provided
|
|
%End
|
|
|
|
virtual bool deleteStyleFromDatabase( const QString &styleId, QString &msgError /Out/ );
|
|
%Docstring
|
|
Deletes a style from the database
|
|
|
|
:param styleId: the provider's layer_styles table id of the style to delete
|
|
|
|
:return: - ``True`` in case of success
|
|
- msgError: will be set to a descriptive error message if any occurs
|
|
%End
|
|
|
|
virtual void saveStyleToDatabase( const QString &name, const QString &description,
|
|
bool useAsDefault, const QString &uiFileContent,
|
|
QString &msgError /Out/,
|
|
QgsMapLayer::StyleCategories categories = QgsMapLayer::AllStyleCategories );
|
|
%Docstring
|
|
Saves named and sld style of the layer to the style table in the db.
|
|
|
|
:param name: Style name
|
|
:param description: A description of the style
|
|
:param useAsDefault: Set to ``True`` if style should be used as the default style for the layer
|
|
:param uiFileContent:
|
|
:param msgError: will be set to a descriptive error message if any occurs
|
|
:param categories: the style categories to be saved.
|
|
|
|
.. note::
|
|
|
|
Prior to QGIS 3.24, this method would show a message box warning when a
|
|
style with the same ``styleName`` already existed to confirm replacing the style with the user.
|
|
Since 3.24, calling this method will ALWAYS overwrite any existing style with the same name.
|
|
Use :py:func:`QgsProviderRegistry.styleExists()` to test in advance if a style already exists and handle this appropriately
|
|
in your client code.
|
|
%End
|
|
|
|
|
|
|
|
virtual QString loadNamedStyle( const QString &theURI, bool &resultFlag /Out/, bool loadFromLocalDb,
|
|
QgsMapLayer::StyleCategories categories = QgsMapLayer::AllStyleCategories,
|
|
Qgis::LoadStyleFlags flags = Qgis::LoadStyleFlags() );
|
|
%Docstring
|
|
Loads a named style from file/local db/datasource db
|
|
|
|
:param theURI: the URI of the style or the URI of the layer
|
|
:param resultFlag: will be set to ``True`` if a named style is correctly loaded
|
|
:param loadFromLocalDb: if ``True`` forces to load from local db instead of datasource one
|
|
:param categories: the style categories to be loaded.
|
|
:param flags: flags controlling how the style should be loaded (since QGIS 3.38)
|
|
%End
|
|
|
|
|
|
|
|
void removeCustomProperty( const QString &key );
|
|
%Docstring
|
|
Remove a custom property from layer. Properties are stored in a map and saved in project file.
|
|
|
|
.. seealso:: :py:func:`setCustomProperty`
|
|
%End
|
|
|
|
virtual QgsError error() const;
|
|
%Docstring
|
|
Gets current status error. This error describes some principal problem
|
|
for which layer cannot work and thus is not valid. It is not last error
|
|
after accessing data by :py:func:`~QgsMapLayer.draw` etc.
|
|
%End
|
|
|
|
QgsCoordinateReferenceSystem crs() const;
|
|
%Docstring
|
|
Returns the layer's spatial reference system.
|
|
|
|
.. warning::
|
|
|
|
Since QGIS 3.38, consider using :py:func:`~QgsMapLayer.crs3D` whenever transforming 3D data or whenever
|
|
z/elevation value handling is important.
|
|
|
|
.. seealso:: :py:func:`setCrs`
|
|
|
|
.. seealso:: :py:func:`crs3D`
|
|
|
|
.. seealso:: :py:func:`verticalCrs`
|
|
|
|
.. seealso:: :py:func:`crsChanged`
|
|
%End
|
|
|
|
QgsCoordinateReferenceSystem verticalCrs() const;
|
|
%Docstring
|
|
Returns the layer's vertical coordinate reference system.
|
|
|
|
If the layer :py:func:`~QgsMapLayer.crs` is a compound CRS, then the CRS returned will
|
|
be the vertical component of :py:func:`~QgsMapLayer.crs`. Otherwise it will be the value
|
|
explicitly set by a call to :py:func:`~QgsMapLayer.setVerticalCrs`.
|
|
|
|
The returned CRS will be invalid if the layer has no vertical CRS.
|
|
|
|
.. note::
|
|
|
|
Consider also using :py:func:`~QgsMapLayer.crs3D`, which will return a CRS which takes into account
|
|
both :py:func:`~QgsMapLayer.crs` and :py:func:`~QgsMapLayer.verticalCrs`.
|
|
|
|
.. seealso:: :py:func:`crs`
|
|
|
|
.. seealso:: :py:func:`crs3D`
|
|
|
|
.. seealso:: :py:func:`setVerticalCrs`
|
|
|
|
.. versionadded:: 3.38
|
|
%End
|
|
|
|
QgsCoordinateReferenceSystem crs3D() const;
|
|
%Docstring
|
|
Returns the CRS to use for the layer when transforming 3D data, or when z/elevation
|
|
value handling is important.
|
|
|
|
The returned CRS will take into account :py:func:`~QgsMapLayer.verticalCrs` when appropriate, e.g. it may return a compound
|
|
CRS consisting of :py:func:`~QgsMapLayer.crs` + :py:func:`~QgsMapLayer.verticalCrs`. This method may still return a 2D CRS, e.g in the
|
|
case that :py:func:`~QgsMapLayer.crs` is a 2D CRS and no :py:func:`~QgsMapLayer.verticalCrs` has been set for the layer. Check :py:func:`QgsCoordinateReferenceSystem.type()`
|
|
on the returned value to determine the type of CRS returned by this method.
|
|
|
|
.. warning::
|
|
|
|
It is NOT guaranteed that the returned CRS will actually be a 3D CRS, but rather
|
|
it is guaranteed that the returned CRS is ALWAYS the most appropriate CRS to use when handling 3D data.
|
|
|
|
.. seealso:: :py:func:`crs`
|
|
|
|
.. seealso:: :py:func:`verticalCrs`
|
|
|
|
.. seealso:: :py:func:`crs3DChanged`
|
|
|
|
.. versionadded:: 3.38
|
|
%End
|
|
|
|
void setCrs( const QgsCoordinateReferenceSystem &srs, bool emitSignal = true );
|
|
%Docstring
|
|
Sets layer's spatial reference system.
|
|
|
|
If ``emitSignal`` is ``True``, changing the CRS will trigger a :py:func:`~QgsMapLayer.crsChanged` signal. Additionally, if ``crs`` is a compound
|
|
CRS, then the :py:func:`~QgsMapLayer.verticalCrsChanged` signal will also be emitted.
|
|
|
|
.. seealso:: :py:func:`crs`
|
|
|
|
.. seealso:: :py:func:`crsChanged`
|
|
|
|
.. seealso:: :py:func:`setVerticalCrs`
|
|
%End
|
|
|
|
bool setVerticalCrs( const QgsCoordinateReferenceSystem &crs, QString *errorMessage /Out/ = 0 );
|
|
%Docstring
|
|
Sets the layer's vertical coordinate reference system.
|
|
|
|
The :py:func:`~QgsMapLayer.verticalCrsChanged` signal will be raised if the vertical CRS is changed.
|
|
|
|
.. note::
|
|
|
|
If the layer :py:func:`~QgsMapLayer.crs` is a compound CRS, then the CRS returned for
|
|
:py:func:`~QgsMapLayer.verticalCrs` will be the vertical component of :py:func:`~QgsMapLayer.crs`. Otherwise it will be the value
|
|
explicitly set by this call.
|
|
|
|
:param crs: the vertical CRS
|
|
|
|
:return: - ``True`` if vertical CRS was successfully set
|
|
- errorMessage: will be set to a descriptive message if the vertical CRS could not be set
|
|
|
|
.. seealso:: :py:func:`verticalCrs`
|
|
|
|
.. seealso:: :py:func:`setCrs`
|
|
|
|
.. versionadded:: 3.38
|
|
%End
|
|
|
|
QgsCoordinateTransformContext transformContext( ) const;
|
|
%Docstring
|
|
Returns the layer data provider coordinate transform context
|
|
or a default transform context if the layer does not have a valid data provider.
|
|
|
|
.. versionadded:: 3.8
|
|
%End
|
|
|
|
|
|
static QString formatLayerName( const QString &name );
|
|
%Docstring
|
|
A convenience function to capitalize and format a layer ``name``.
|
|
%End
|
|
|
|
virtual QString metadataUri() const;
|
|
%Docstring
|
|
Retrieve the metadata URI for this layer
|
|
(either as a .qmd file on disk or as a
|
|
record in the users style table in their personal qgis.db)
|
|
|
|
:return: a QString with the metadata file name
|
|
%End
|
|
|
|
void exportNamedMetadata( QDomDocument &doc, QString &errorMsg ) const;
|
|
%Docstring
|
|
Export the current metadata of this layer as named metadata in a QDomDocument
|
|
|
|
:param doc: the target QDomDocument
|
|
:param errorMsg: this QString will be initialized on error
|
|
%End
|
|
|
|
virtual QString saveDefaultMetadata( bool &resultFlag /Out/ );
|
|
%Docstring
|
|
Save the current metadata of this layer as the default metadata
|
|
(either as a .qmd file on disk or as a
|
|
record in the users style table in their personal qgis.db)
|
|
|
|
|
|
:return: - a QString with any status messages
|
|
- resultFlag: a reference to a flag that will be set to ``False`` if we did not manage to save the default metadata.
|
|
%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
|
|
%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.
|
|
|
|
:return: - a QString with any status messages
|
|
- resultFlag: a reference to a flag that will be set to ``False`` if we did not manage to load the default metadata.
|
|
%End
|
|
|
|
|
|
virtual 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
|
|
%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
|
|
%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
|
|
%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:`loadNamedStyle`
|
|
|
|
.. seealso:: :py:func:`saveNamedStyle`
|
|
%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)
|
|
|
|
|
|
:return: - a QString with any status messages
|
|
- resultFlag: a reference to a flag that will be set to ``False`` if we did not manage to load the default style.
|
|
|
|
.. seealso:: :py:func:`loadNamedStyle`
|
|
%End
|
|
|
|
|
|
virtual QString loadNamedStyle( const QString &uri, bool &resultFlag /Out/, QgsMapLayer::StyleCategories categories = QgsMapLayer::AllStyleCategories, Qgis::LoadStyleFlags flags = Qgis::LoadStyleFlags() );
|
|
%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 categories: the style categories to be loaded.
|
|
:param flags: flags controlling how the style should be loaded (since QGIS 3.38)
|
|
|
|
:return: - a QString with any status messages
|
|
- resultFlag: a reference to a flag that will be set to ``False`` if we did not manage to load the default style.
|
|
|
|
.. seealso:: :py:func:`loadDefaultStyle`
|
|
%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
|
|
|
|
:return: - ``True`` if style was successfully loaded
|
|
- qml: will be set to QML style content from database
|
|
%End
|
|
|
|
virtual bool importNamedStyle( QDomDocument &doc, QString &errorMsg /Out/,
|
|
QgsMapLayer::StyleCategories categories = QgsMapLayer::AllStyleCategories );
|
|
%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
|
|
:param categories: the style categories to import
|
|
|
|
:return: ``True`` on success
|
|
%End
|
|
|
|
virtual void exportNamedStyle( QDomDocument &doc, QString &errorMsg /Out/, const QgsReadWriteContext &context = QgsReadWriteContext(),
|
|
QgsMapLayer::StyleCategories categories = QgsMapLayer::AllStyleCategories ) 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
|
|
:param context: read write context
|
|
:param categories: the style categories to export
|
|
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
|
|
|
|
.. seealso:: :py:func:`exportSldStyleV2`
|
|
%End
|
|
|
|
virtual void exportSldStyleV2( QDomDocument &doc, QString &errorMsg, const QgsSldExportContext &exportContext ) 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
|
|
:param exportContext: SLD export context
|
|
|
|
.. versionadded:: 3.30
|
|
%End
|
|
|
|
virtual QString saveDefaultStyle( bool &resultFlag /Out/, StyleCategories categories );
|
|
%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 categories: the style categories to be saved (since QGIS 3.26)
|
|
|
|
:return: - a QString with any status messages
|
|
- resultFlag: a reference to a flag that will be set to ``False`` if we did not manage to save the default style.
|
|
|
|
.. seealso:: :py:func:`loadNamedStyle`
|
|
|
|
.. seealso:: :py:func:`saveNamedStyle`
|
|
%End
|
|
|
|
virtual QString saveDefaultStyle( bool &resultFlag /Out/ ) /Deprecated/;
|
|
%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)
|
|
|
|
|
|
:return: - a QString with any status messages
|
|
- resultFlag: a reference to a flag that will be set to ``False`` if we did not manage to save the default style.
|
|
|
|
.. seealso:: :py:func:`loadNamedStyle`
|
|
|
|
.. seealso:: :py:func:`saveNamedStyle`
|
|
|
|
.. deprecated:: QGIS 3.26
|
|
%End
|
|
|
|
virtual QString saveNamedStyle( const QString &uri, bool &resultFlag /Out/, StyleCategories categories = AllStyleCategories );
|
|
%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 categories: the style categories to be saved.
|
|
|
|
:return: - a QString with any status messages
|
|
- resultFlag: a reference to a flag that will be set to ``False`` if we did not manage to save the default style.
|
|
|
|
.. 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`
|
|
|
|
.. seealso:: :py:func:`saveSldStyleV2`
|
|
%End
|
|
|
|
virtual QString saveSldStyleV2( bool &resultFlag /Out/, const QgsSldExportContext &exportContext ) const;
|
|
%Docstring
|
|
Saves the properties of this layer to an SLD format file.
|
|
|
|
:param exportContext: SLD export context
|
|
|
|
:return: - a string with any status or error messages
|
|
- resultFlag: a reference to a flag that will be set to ``False`` if the SLD file could not be generated
|
|
|
|
.. seealso:: :py:func:`loadSldStyle`
|
|
|
|
.. versionadded:: 3.30
|
|
%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, StyleCategories categories = AllStyleCategories ) = 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)
|
|
:param categories: the style categories to be read
|
|
|
|
:return: ``True`` in case of success.
|
|
%End
|
|
|
|
virtual bool readStyle( const QDomNode &node, QString &errorMessage,
|
|
QgsReadWriteContext &context, StyleCategories categories = AllStyleCategories );
|
|
%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)
|
|
:param categories: the style categories to be read
|
|
|
|
:return: ``True`` in case of success.
|
|
|
|
.. 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,
|
|
StyleCategories categories = AllStyleCategories ) const = 0;
|
|
%Docstring
|
|
Write the style for the layer into the document 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)
|
|
:param categories: the style categories to be written
|
|
|
|
.. note::
|
|
|
|
There is a confusion of terms with the GUI. This method actually writes what is called a style in the application.
|
|
|
|
:return: ``True`` in case of success.
|
|
%End
|
|
|
|
virtual bool writeStyle( QDomNode &node, QDomDocument &doc, QString &errorMessage, const QgsReadWriteContext &context,
|
|
StyleCategories categories = AllStyleCategories ) const;
|
|
%Docstring
|
|
Write just the symbology 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)
|
|
:param categories: the style categories to be written
|
|
|
|
:return: ``True`` in case of success.
|
|
|
|
.. note::
|
|
|
|
To be implemented in subclasses. Default implementation does nothing and returns ``False``.
|
|
|
|
.. note::
|
|
|
|
There is a confusion of terms with the GUI. This method actually writes what is known as the symbology in the application.
|
|
%End
|
|
|
|
|
|
void setDataSource( const QString &dataSource, const QString &baseName, const QString &provider, bool loadDefaultStyleFlag = false );
|
|
%Docstring
|
|
Updates the data source of the layer.
|
|
|
|
The ``dataSource`` argument must specify the new data source string for the layer. The format varies depending on
|
|
the specified data ``provider`` in use. See :py:class:`QgsDataSourceUri` and the documentation for the various :py:class:`QgsMapLayer`
|
|
subclasses for further details on data source strings.
|
|
|
|
The ``baseName`` argument specifies the user-visible name to use for the layer. (See :py:func:`~QgsMapLayer.name` or :py:func:`~QgsMapLayer.setName`).
|
|
|
|
The ``provider`` argument is used to specify the unique key of the data provider to use for
|
|
the layer. This must match one of the values returned by :py:func:`QgsProviderRegistry.instance()`->:py:func:`~QgsMapLayer.providerList`.
|
|
(See :py:func:`~QgsMapLayer.providerType`).
|
|
|
|
If ``loadDefaultStyleFlag`` is set to ``True`` then the layer's existing style will be reset to the default
|
|
for the data source.
|
|
|
|
.. note::
|
|
|
|
If ``loadDefaultStyleFlag`` is ``False`` then the layer's renderer and legend will be preserved only
|
|
if the geometry type of the new data source matches the current geometry type of the layer.
|
|
|
|
After setting a new data source callers can test :py:func:`~QgsMapLayer.isValid` to determine whether the new source
|
|
and provider are valid and ready for use. If setting the new data source fails and the layer
|
|
returns ``False`` to :py:func:`~QgsMapLayer.isValid`, then descriptive errors relating to setting the data source can
|
|
be retrieved by calling :py:func:`~QgsMapLayer.error`.
|
|
|
|
This method was defined in :py:class:`QgsVectorLayer` since 2.10 and was marked as deprecated since 3.2
|
|
|
|
.. seealso:: :py:func:`dataSourceChanged`
|
|
|
|
.. versionadded:: 3.20
|
|
%End
|
|
|
|
void setDataSource( const QString &dataSource, const QString &baseName, const QString &provider, const QgsDataProvider::ProviderOptions &options, bool loadDefaultStyleFlag = false );
|
|
%Docstring
|
|
Updates the data source of the layer.
|
|
|
|
The ``dataSource`` argument must specify the new data source string for the layer. The format varies depending on
|
|
the specified data ``provider`` in use. See :py:class:`QgsDataSourceUri` and the documentation for the various :py:class:`QgsMapLayer`
|
|
subclasses for further details on data source strings.
|
|
|
|
The ``baseName`` argument specifies the user-visible name to use for the layer. (See :py:func:`~QgsMapLayer.name` or :py:func:`~QgsMapLayer.setName`).
|
|
|
|
The ``provider`` argument is used to specify the unique key of the data provider to use for
|
|
the layer. This must match one of the values returned by :py:func:`QgsProviderRegistry.instance()`->:py:func:`~QgsMapLayer.providerList`.
|
|
(See :py:func:`~QgsMapLayer.providerType`).
|
|
|
|
The ``options`` argument can be used to pass additional layer properties to the new data provider.
|
|
|
|
If ``loadDefaultStyleFlag`` is set to ``True`` then the layer's existing style will be reset to the default
|
|
for the data source.
|
|
|
|
.. note::
|
|
|
|
If ``loadDefaultStyleFlag`` is ``False`` then the layer's renderer and legend will be preserved only
|
|
if the geometry type of the new data source matches the current geometry type of the layer.
|
|
|
|
After setting a new data source callers can test :py:func:`~QgsMapLayer.isValid` to determine whether the new source
|
|
and provider are valid and ready for use. If setting the new data source fails and the layer
|
|
returns ``False`` to :py:func:`~QgsMapLayer.isValid`, then descriptive errors relating to setting the data source can
|
|
be retrieved by calling :py:func:`~QgsMapLayer.error`.
|
|
|
|
.. seealso:: :py:func:`dataSourceChanged`
|
|
|
|
.. versionadded:: 3.6
|
|
%End
|
|
|
|
void setDataSource( const QString &dataSource, const QString &baseName, const QString &provider, const QgsDataProvider::ProviderOptions &options, Qgis::DataProviderReadFlags flags );
|
|
%Docstring
|
|
Updates the data source of the layer.
|
|
|
|
The ``dataSource`` argument must specify the new data source string for the layer. The format varies depending on
|
|
the specified data ``provider`` in use. See :py:class:`QgsDataSourceUri` and the documentation for the various :py:class:`QgsMapLayer`
|
|
subclasses for further details on data source strings.
|
|
|
|
The ``baseName`` argument specifies the user-visible name to use for the layer. (See :py:func:`~QgsMapLayer.name` or :py:func:`~QgsMapLayer.setName`).
|
|
|
|
The ``provider`` argument is used to specify the unique key of the data provider to use for
|
|
the layer. This must match one of the values returned by :py:func:`QgsProviderRegistry.instance()`->:py:func:`~QgsMapLayer.providerList`.
|
|
(See :py:func:`~QgsMapLayer.providerType`).
|
|
|
|
The ``options`` argument can be used to pass additional layer properties to the new data provider.
|
|
|
|
The ``flags`` argument specifies provider read flags which control the data provider construction,
|
|
such as :py:class:`QgsDataProvider`.ReadFlag.FlagTrustDataSource, :py:class:`QgsDataProvider`.ReadFlag.FlagLoadDefaultStyle, etc.
|
|
|
|
.. note::
|
|
|
|
The layer's renderer and legend will be preserved only
|
|
if the geometry type of the new data source matches the current geometry type of the layer.
|
|
|
|
After setting a new data source callers can test :py:func:`~QgsMapLayer.isValid` to determine whether the new source
|
|
and provider are valid and ready for use. If setting the new data source fails and the layer
|
|
returns ``False`` to :py:func:`~QgsMapLayer.isValid`, then descriptive errors relating to setting the data source can
|
|
be retrieved by calling :py:func:`~QgsMapLayer.error`.
|
|
|
|
.. seealso:: :py:func:`dataSourceChanged`
|
|
|
|
.. versionadded:: 3.20
|
|
%End
|
|
|
|
QString providerType() const;
|
|
%Docstring
|
|
Returns the provider type (provider key) for this layer
|
|
%End
|
|
|
|
QUndoStack *undoStack();
|
|
%Docstring
|
|
Returns pointer to layer's undo stack
|
|
%End
|
|
|
|
QUndoStack *undoStackStyles();
|
|
%Docstring
|
|
Returns pointer to layer's style undo stack
|
|
%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 ``None``.
|
|
%End
|
|
|
|
QgsMapLayerLegend *legend() const;
|
|
%Docstring
|
|
Can be ``None``.
|
|
%End
|
|
|
|
QgsMapLayerStyleManager *styleManager() const;
|
|
%Docstring
|
|
Gets access to the layer's style manager. Style manager allows switching between multiple styles.
|
|
%End
|
|
|
|
void setRenderer3D( QgsAbstract3DRenderer *renderer /Transfer/ );
|
|
%Docstring
|
|
Sets 3D renderer for the layer. Takes ownership of the renderer.
|
|
%End
|
|
|
|
QgsAbstract3DRenderer *renderer3D() const;
|
|
%Docstring
|
|
Returns 3D renderer associated with the layer. May be ``None``.
|
|
%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.
|
|
|
|
.. 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 :py:func:`~QgsMapLayer.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 :py:func:`~QgsMapLayer.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 /Deprecated/;
|
|
%Docstring
|
|
Returns ``True`` if auto refresh is enabled for the layer.
|
|
|
|
.. seealso:: :py:func:`autoRefreshInterval`
|
|
|
|
.. seealso:: :py:func:`setAutoRefreshEnabled`
|
|
|
|
.. deprecated::
|
|
use :py:func:`~QgsMapLayer.autoRefreshMode` instead.
|
|
%End
|
|
|
|
Qgis::AutoRefreshMode autoRefreshMode() const;
|
|
%Docstring
|
|
Returns the layer's automatic refresh mode.
|
|
|
|
.. seealso:: :py:func:`autoRefreshInterval`
|
|
|
|
.. seealso:: :py:func:`setAutoRefreshMode`
|
|
|
|
.. versionadded:: 3.34
|
|
%End
|
|
|
|
int autoRefreshInterval() const;
|
|
%Docstring
|
|
Returns the auto refresh interval (in milliseconds). Note that
|
|
auto refresh is only active when :py:func:`~QgsMapLayer.hasAutoRefreshEnabled` is ``True``.
|
|
|
|
.. 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 :py:func:`~QgsMapLayer.setAutoRefreshMode`.
|
|
|
|
Note that auto refresh triggers deferred repaints of the layer. Any map
|
|
canvas must be refreshed separately in order to view the refreshed layer.
|
|
|
|
.. seealso:: :py:func:`autoRefreshInterval`
|
|
|
|
.. seealso:: :py:func:`setAutoRefreshEnabled`
|
|
%End
|
|
|
|
void setAutoRefreshEnabled( bool enabled ) /Deprecated/;
|
|
%Docstring
|
|
Sets whether auto refresh is enabled for the layer.
|
|
|
|
.. seealso:: :py:func:`hasAutoRefreshEnabled`
|
|
|
|
.. seealso:: :py:func:`setAutoRefreshInterval`
|
|
|
|
.. deprecated::
|
|
Use :py:func:`~QgsMapLayer.setAutoRefreshMode` instead.
|
|
%End
|
|
|
|
void setAutoRefreshMode( Qgis::AutoRefreshMode mode );
|
|
%Docstring
|
|
Sets the automatic refresh mode for the layer.
|
|
|
|
.. seealso:: :py:func:`autoRefreshMode`
|
|
|
|
.. seealso:: :py:func:`setAutoRefreshInterval`
|
|
|
|
.. versionadded:: 3.34
|
|
%End
|
|
|
|
virtual const QgsLayerMetadata &metadata() const;
|
|
%Docstring
|
|
Returns a reference to the layer's metadata store.
|
|
|
|
.. seealso:: :py:func:`setMetadata`
|
|
|
|
.. seealso:: :py:func:`metadataChanged`
|
|
%End
|
|
|
|
virtual void setMetadata( const QgsLayerMetadata &metadata );
|
|
%Docstring
|
|
Sets the layer's ``metadata`` store.
|
|
|
|
.. 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.
|
|
%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 :py:class:`QgsMapLayerDependency`
|
|
%End
|
|
|
|
QString refreshOnNotifyMessage() const;
|
|
%Docstring
|
|
Returns the message that should be notified by the provider to triggerRepaint
|
|
%End
|
|
|
|
bool isRefreshOnNotifyEnabled() const;
|
|
%Docstring
|
|
Returns ``True`` if the refresh on provider nofification is enabled
|
|
%End
|
|
|
|
QString originalXmlProperties() const;
|
|
%Docstring
|
|
Returns the XML properties of the original layer as they were when the layer
|
|
was first read from the project file. In case of new layers this is normally empty.
|
|
|
|
The storage format for the XML is qlr
|
|
|
|
.. versionadded:: 3.6
|
|
%End
|
|
|
|
void setOriginalXmlProperties( const QString &originalXmlProperties );
|
|
%Docstring
|
|
Sets the original XML properties for the layer to ``originalXmlProperties``
|
|
|
|
The storage format for the XML is qlr
|
|
|
|
.. versionadded:: 3.6
|
|
%End
|
|
|
|
static QString generateId( const QString &layerName );
|
|
%Docstring
|
|
Generates an unique identifier for this layer, the generate ID is prefixed by ``layerName``
|
|
|
|
.. versionadded:: 3.8
|
|
%End
|
|
|
|
virtual bool accept( QgsStyleEntityVisitorInterface *visitor ) const;
|
|
%Docstring
|
|
Accepts the specified symbology ``visitor``, causing it to visit all symbols associated
|
|
with the layer.
|
|
|
|
Returns ``True`` if the visitor should continue visiting other objects, or ``False`` if visiting
|
|
should be canceled.
|
|
|
|
.. versionadded:: 3.10
|
|
%End
|
|
|
|
virtual QgsMapLayerSelectionProperties *selectionProperties();
|
|
%Docstring
|
|
Returns the layer's selection properties. This may be ``None``, depending on the layer type.
|
|
|
|
.. versionadded:: 3.34
|
|
%End
|
|
|
|
virtual QgsMapLayerTemporalProperties *temporalProperties();
|
|
%Docstring
|
|
Returns the layer's temporal properties. This may be ``None``, depending on the layer type.
|
|
|
|
.. versionadded:: 3.14
|
|
%End
|
|
|
|
virtual QgsMapLayerElevationProperties *elevationProperties();
|
|
%Docstring
|
|
Returns the layer's elevation properties. This may be ``None``, depending on the layer type.
|
|
|
|
.. versionadded:: 3.18
|
|
%End
|
|
|
|
QString legendPlaceholderImage() const;
|
|
%Docstring
|
|
Returns path to the placeholder image or an empty string if a generated legend is shown
|
|
|
|
:return: placeholder image path
|
|
|
|
.. versionadded:: 3.22
|
|
%End
|
|
|
|
void setLegendPlaceholderImage( const QString &imgPath );
|
|
%Docstring
|
|
Set placeholder image for legend. If the string is empty, a generated legend will be shown.
|
|
|
|
:param imgPath: file path to the placeholder image
|
|
|
|
.. versionadded:: 3.22
|
|
%End
|
|
|
|
virtual bool hasMapTips() const;
|
|
%Docstring
|
|
Returns ``True`` if the layer contains map tips.
|
|
|
|
.. seealso:: :py:func:`mapTipTemplate`
|
|
|
|
.. seealso:: :py:func:`setMapTipTemplate`
|
|
%End
|
|
|
|
QString mapTipTemplate() const;
|
|
%Docstring
|
|
The mapTip is a pretty, html representation for feature information.
|
|
|
|
It may also contain embedded expressions.
|
|
|
|
.. versionadded:: 3.30
|
|
%End
|
|
|
|
void setMapTipTemplate( const QString &mapTipTemplate );
|
|
%Docstring
|
|
The mapTip is a pretty, html representation for feature information.
|
|
|
|
It may also contain embedded expressions.
|
|
|
|
.. versionadded:: 3.30
|
|
%End
|
|
|
|
void setMapTipsEnabled( bool enabled );
|
|
%Docstring
|
|
Enable or disable map tips for this layer
|
|
|
|
:param enabled: Whether map tips are enabled for this layer
|
|
|
|
.. versionadded:: 3.32
|
|
%End
|
|
|
|
bool mapTipsEnabled() const;
|
|
%Docstring
|
|
Returns true if map tips are enabled for this layer
|
|
|
|
.. versionadded:: 3.32
|
|
%End
|
|
|
|
static Qgis::DataProviderReadFlags providerReadFlags( const QDomNode &layerNode, QgsMapLayer::ReadFlags layerReadFlags );
|
|
%Docstring
|
|
Returns provider read flag deduced from layer read flags ``layerReadFlags`` and a dom node ``layerNode``
|
|
that describes a layer (corresponding to ``maplayer'' tag in a DOM document project file read by :py:class:`QgsProject`).
|
|
This static method is used when loading a project.
|
|
|
|
.. versionadded:: 3.32
|
|
%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 :py:func:`~QgsMapLayer.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 :py:func:`~QgsMapLayer.setScaleBasedVisibility` is set to ``True``.
|
|
|
|
.. seealso:: :py:func:`maximumScale`
|
|
|
|
.. seealso:: :py:func:`setMinimumScale`
|
|
|
|
.. seealso:: :py:func:`setScaleBasedVisibility`
|
|
%End
|
|
|
|
void setScaleBasedVisibility( 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 :py:func:`~QgsMapLayer.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 trigger3DUpdate();
|
|
%Docstring
|
|
Will advise any 3D maps that this layer requires to be updated in the scene.
|
|
Will emit a :py:func:`~QgsMapLayer.request3DUpdate` signal.
|
|
|
|
.. versionadded:: 3.18
|
|
%End
|
|
|
|
void emitStyleChanged();
|
|
%Docstring
|
|
Triggers an emission of the :py:func:`~QgsMapLayer.styleChanged` signal.
|
|
%End
|
|
|
|
virtual bool setDependencies( const QSet<QgsMapLayerDependency> &layers );
|
|
%Docstring
|
|
Sets the list of dependencies.
|
|
|
|
.. seealso:: :py:func:`dependencies`
|
|
|
|
:param layers: set of :py:class:`QgsMapLayerDependency`. Only user-defined dependencies will be added
|
|
|
|
:return: ``False`` if a dependency cycle has been detected
|
|
%End
|
|
|
|
void setRefreshOnNotifyEnabled( bool enabled );
|
|
%Docstring
|
|
Set whether provider notification is connected to triggerRepaint
|
|
%End
|
|
|
|
void setRefreshOnNofifyMessage( const QString &message );
|
|
%Docstring
|
|
Set the notification message that triggers repaint
|
|
If refresh on notification is enabled, the notification will triggerRepaint only
|
|
if the notification message is equal to:param message:
|
|
%End
|
|
|
|
virtual void setTransformContext( const QgsCoordinateTransformContext &transformContext ) = 0;
|
|
%Docstring
|
|
Sets the coordinate transform context to ``transformContext``
|
|
|
|
.. versionadded:: 3.8
|
|
%End
|
|
|
|
SIP_PYOBJECT __repr__();
|
|
%MethodCode
|
|
QString str = QStringLiteral( "<QgsMapLayer: '%1' (%2)>" ).arg( sipCpp->name(), sipCpp->dataProvider() ? sipCpp->dataProvider()->name() : QStringLiteral( "Invalid" ) );
|
|
sipRes = PyUnicode_FromString( str.toUtf8().constData() );
|
|
%End
|
|
|
|
QgsProject *project() const;
|
|
%Docstring
|
|
Returns the parent project if this map layer is added to a project.
|
|
Otherwise returns ``None``
|
|
|
|
.. versionadded:: 3.18
|
|
%End
|
|
|
|
signals:
|
|
|
|
void beforeResolveReferences( QgsProject *project );
|
|
%Docstring
|
|
Emitted when all layers are loaded and references can be resolved,
|
|
just before the references of this layer are resolved.
|
|
|
|
.. versionadded:: 3.10
|
|
%End
|
|
|
|
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 idChanged( const QString &id );
|
|
%Docstring
|
|
Emitted when the layer's ID has been changed.
|
|
|
|
.. seealso:: :py:func:`id`
|
|
|
|
.. seealso:: :py:func:`setId`
|
|
|
|
.. versionadded:: 3.38
|
|
%End
|
|
|
|
void nameChanged();
|
|
%Docstring
|
|
Emitted when the name has been changed
|
|
%End
|
|
|
|
void crsChanged();
|
|
%Docstring
|
|
Emitted when the :py:func:`~QgsMapLayer.crs` of the layer has changed.
|
|
|
|
.. seealso:: :py:func:`crs`
|
|
|
|
.. seealso:: :py:func:`setCrs`
|
|
|
|
.. seealso:: :py:func:`verticalCrsChanged`
|
|
|
|
.. seealso:: :py:func:`crs3DChanged`
|
|
%End
|
|
|
|
void crs3DChanged();
|
|
%Docstring
|
|
Emitted when the :py:func:`~QgsMapLayer.crs3D` of the layer has changed.
|
|
|
|
.. seealso:: :py:func:`crs3D`
|
|
|
|
.. seealso:: :py:func:`crsChanged`
|
|
|
|
.. seealso:: :py:func:`verticalCrsChanged`
|
|
|
|
.. versionadded:: 3.38
|
|
%End
|
|
|
|
void verticalCrsChanged();
|
|
%Docstring
|
|
Emitted when the :py:func:`~QgsMapLayer.verticalCrs` of the layer has changed.
|
|
|
|
This signal will be emitted whenever the vertical CRS of the layer is changed, either
|
|
as a direct result of a call to :py:func:`~QgsMapLayer.setVerticalCrs` or when :py:func:`~QgsMapLayer.setCrs` is called with a compound
|
|
CRS.
|
|
|
|
.. seealso:: :py:func:`crsChanged`
|
|
|
|
.. seealso:: :py:func:`crs3DChanged`
|
|
|
|
.. seealso:: :py:func:`setCrs`
|
|
|
|
.. seealso:: :py:func:`setVerticalCrs`
|
|
|
|
.. seealso:: :py:func:`verticalCrs`
|
|
|
|
.. versionadded:: 3.38
|
|
%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 opacityChanged( double opacity );
|
|
%Docstring
|
|
Emitted when the layer's opacity is changed, where ``opacity`` is a value between 0 (transparent)
|
|
and 1 (opaque).
|
|
|
|
.. seealso:: :py:func:`setOpacity`
|
|
|
|
.. seealso:: :py:func:`opacity`
|
|
|
|
.. note::
|
|
|
|
Prior to QGIS 3.18, this signal was available for vector layers only
|
|
|
|
.. versionadded:: 3.18
|
|
%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.
|
|
|
|
.. warning::
|
|
|
|
This signal should never be manually emitted. Instead call the :py:func:`~QgsMapLayer.emitStyleChanged` method
|
|
to ensure that the signal is only emitted when appropriate.
|
|
|
|
.. seealso:: :py:func:`rendererChanged`
|
|
%End
|
|
|
|
void legendChanged();
|
|
%Docstring
|
|
Signal emitted when legend of the layer has changed
|
|
%End
|
|
|
|
void renderer3DChanged();
|
|
%Docstring
|
|
Signal emitted when 3D renderer associated with the layer has changed.
|
|
%End
|
|
|
|
void request3DUpdate();
|
|
%Docstring
|
|
Signal emitted when a layer requires an update in any 3D maps.
|
|
|
|
.. versionadded:: 3.18
|
|
%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.
|
|
%End
|
|
|
|
void autoRefreshIntervalChanged( int interval );
|
|
%Docstring
|
|
Emitted when the auto refresh interval changes.
|
|
|
|
.. seealso:: :py:func:`setAutoRefreshInterval`
|
|
%End
|
|
|
|
void metadataChanged();
|
|
%Docstring
|
|
Emitted when the layer's metadata is changed.
|
|
|
|
.. seealso:: :py:func:`setMetadata`
|
|
|
|
.. seealso:: :py:func:`metadata`
|
|
%End
|
|
|
|
void flagsChanged();
|
|
%Docstring
|
|
Emitted when layer's flags have been modified.
|
|
|
|
.. seealso:: :py:func:`setFlags`
|
|
|
|
.. seealso:: :py:func:`flags`
|
|
|
|
.. versionadded:: 3.4
|
|
%End
|
|
|
|
void dataSourceChanged();
|
|
%Docstring
|
|
Emitted whenever the layer's data source has been changed.
|
|
|
|
.. seealso:: :py:func:`setDataSource`
|
|
|
|
.. versionadded:: 3.5
|
|
%End
|
|
|
|
void styleLoaded( QgsMapLayer::StyleCategories categories );
|
|
%Docstring
|
|
Emitted when a style has been loaded
|
|
|
|
:param categories: style categories
|
|
|
|
.. versionadded:: 3.12
|
|
%End
|
|
|
|
void isValidChanged();
|
|
%Docstring
|
|
Emitted when the validity of this layer changed.
|
|
|
|
.. versionadded:: 3.16
|
|
%End
|
|
|
|
void customPropertyChanged( const QString &key );
|
|
%Docstring
|
|
Emitted when a custom property of the layer has been changed or removed.
|
|
|
|
.. versionadded:: 3.18
|
|
%End
|
|
|
|
void editingStarted();
|
|
%Docstring
|
|
Emitted when editing on this layer has started.
|
|
|
|
.. versionadded:: 3.22
|
|
%End
|
|
|
|
void editingStopped();
|
|
%Docstring
|
|
Emitted when edited changes have been successfully written to the data provider.
|
|
|
|
.. versionadded:: 3.22
|
|
%End
|
|
|
|
void layerModified();
|
|
%Docstring
|
|
Emitted when modifications has been done on layer
|
|
|
|
.. versionadded:: 3.22
|
|
%End
|
|
|
|
void mapTipTemplateChanged();
|
|
%Docstring
|
|
Emitted when the map tip template changes
|
|
|
|
.. versionadded:: 3.30
|
|
%End
|
|
|
|
void mapTipsEnabledChanged();
|
|
%Docstring
|
|
Emitted when map tips are enabled or disabled for the layer.
|
|
|
|
.. seealso:: :py:func:`setMapTipsEnabled`
|
|
|
|
.. versionadded:: 3.32
|
|
%End
|
|
|
|
protected:
|
|
|
|
void clone( QgsMapLayer *layer ) const;
|
|
%Docstring
|
|
Copies attributes like name, short name, ... into another layer.
|
|
|
|
:param layer: The copy recipient
|
|
%End
|
|
|
|
virtual void setExtent( const QgsRectangle &rect );
|
|
%Docstring
|
|
Sets the extent
|
|
%End
|
|
|
|
virtual void setExtent3D( const QgsBox3D &box );
|
|
%Docstring
|
|
Sets the extent
|
|
|
|
.. versionadded:: 3.36
|
|
%End
|
|
|
|
void setValid( bool valid );
|
|
%Docstring
|
|
Sets whether layer is valid or not
|
|
%End
|
|
|
|
virtual bool readXml( const QDomNode &layer_node, QgsReadWriteContext &context );
|
|
%Docstring
|
|
Called by :py:func:`~QgsMapLayer.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 :py:func:`~QgsMapLayer.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 :py:func:`~QgsMapLayer.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 :py:func:`~QgsMapLayer.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,
|
|
StyleCategories categories = AllStyleCategories ) const;
|
|
%Docstring
|
|
Write style data common to all layer types
|
|
%End
|
|
|
|
void readCommonStyle( const QDomElement &layerElement, const QgsReadWriteContext &context,
|
|
StyleCategories categories = AllStyleCategories );
|
|
%Docstring
|
|
Read style data common to all layer types
|
|
%End
|
|
|
|
void setProviderType( const QString &providerType );
|
|
%Docstring
|
|
Sets the ``providerType`` (provider key)
|
|
%End
|
|
|
|
|
|
void appendError( const QgsErrorMessage &error );
|
|
%Docstring
|
|
Add error message
|
|
%End
|
|
void setError( const QgsError &error );
|
|
%Docstring
|
|
Sets error message
|
|
%End
|
|
|
|
void invalidateWgs84Extent();
|
|
%Docstring
|
|
Invalidates the WGS84 extent. If FlagTrustLayerMetadata is enabled,
|
|
the extent is not invalidated because we want to trust metadata whatever
|
|
happens.
|
|
|
|
.. versionadded:: 3.20
|
|
%End
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
bool hasDependencyCycle( const QSet<QgsMapLayerDependency> & ) const;
|
|
%Docstring
|
|
Checks whether a new set of dependencies will introduce a cycle
|
|
this method is now deprecated and always return ``False``, because circular dependencies are now correctly managed.
|
|
|
|
.. deprecated:: QGIS 3.10
|
|
%End
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
};
|
|
|
|
QFlags<QgsMapLayer::LayerFlag> operator|(QgsMapLayer::LayerFlag f1, QFlags<QgsMapLayer::LayerFlag> f2);
|
|
|
|
QFlags<QgsMapLayer::StyleCategory> operator|(QgsMapLayer::StyleCategory f1, QFlags<QgsMapLayer::StyleCategory> f2);
|
|
|
|
QFlags<QgsMapLayer::ReadFlag> operator|(QgsMapLayer::ReadFlag f1, QFlags<QgsMapLayer::ReadFlag> f2);
|
|
|
|
|
|
|
|
|
|
/************************************************************************
|
|
* This file has been generated automatically from *
|
|
* *
|
|
* src/core/qgsmaplayer.h *
|
|
* *
|
|
* Do not edit manually ! Edit header and run scripts/sipify.py again *
|
|
************************************************************************/
|