QGIS API Documentation
3.14.0-Pi (9f7028fd23)
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#include <qgsvectorlayerlabeling.h>
Public Member Functions | |
QgsVectorLayerSimpleLabeling (const QgsPalLayerSettings &settings) | |
Constructs simple labeling configuration with given initial settings. More... | |
bool | accept (QgsStyleEntityVisitorInterface *visitor) const override |
Accepts the specified symbology visitor, causing it to visit all symbols associated with the labeling. More... | |
QgsAbstractVectorLayerLabeling * | clone () const override |
Returns a new copy of the object. More... | |
QgsVectorLayerLabelProvider * | provider (QgsVectorLayer *layer) const override |
bool | requiresAdvancedEffects () const override |
Returns true if drawing labels requires advanced effects like composition modes, which could prevent it being used as an isolated cached image or exported to a vector format. More... | |
QDomElement | save (QDomDocument &doc, const QgsReadWriteContext &context) const override |
Returns labeling configuration as XML element. More... | |
void | setSettings (QgsPalLayerSettings *settings, const QString &providerId=QString()) override |
Set pal settings (takes ownership). More... | |
QgsPalLayerSettings | settings (const QString &providerId=QString()) const override |
Gets associated label settings. More... | |
void | toSld (QDomNode &parent, const QgsStringMap &props) const override |
Writes the SE 1.1 TextSymbolizer element based on the current layer labeling settings. More... | |
QString | type () const override |
Unique type string of the labeling configuration implementation. More... | |
Public Member Functions inherited from QgsAbstractVectorLayerLabeling | |
QgsAbstractVectorLayerLabeling ()=default | |
Default constructor. More... | |
virtual | ~QgsAbstractVectorLayerLabeling ()=default |
virtual QStringList | subProviders () const |
Gets list of sub-providers within the layer's labeling. More... | |
Static Public Member Functions | |
static QgsVectorLayerSimpleLabeling * | create (const QDomElement &element, const QgsReadWriteContext &context) |
Create the instance from a DOM element with saved configuration. More... | |
Static Public Member Functions inherited from QgsAbstractVectorLayerLabeling | |
static QgsAbstractVectorLayerLabeling * | create (const QDomElement &element, const QgsReadWriteContext &context) |
Try to create instance of an implementation based on the XML data. More... | |
Additional Inherited Members | |
Protected Member Functions inherited from QgsAbstractVectorLayerLabeling | |
virtual void | writeTextSymbolizer (QDomNode &parent, QgsPalLayerSettings &settings, const QgsStringMap &props) const |
Writes a TextSymbolizer element contents based on the provided labeling settings. More... | |
Basic implementation of the labeling interface.
The configuration is kept in layer's custom properties for backward compatibility.
Definition at line 156 of file qgsvectorlayerlabeling.h.
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explicit |
Constructs simple labeling configuration with given initial settings.
Definition at line 54 of file qgsvectorlayerlabeling.cpp.
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overridevirtual |
Accepts the specified symbology visitor, causing it to visit all symbols associated with the labeling.
Returns true
if the visitor should continue visiting other objects, or false
if visiting should be canceled.
Reimplemented from QgsAbstractVectorLayerLabeling.
Definition at line 84 of file qgsvectorlayerlabeling.cpp.
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overridevirtual |
Returns a new copy of the object.
Implements QgsAbstractVectorLayerLabeling.
Definition at line 65 of file qgsvectorlayerlabeling.cpp.
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static |
Create the instance from a DOM element with saved configuration.
Definition at line 100 of file qgsvectorlayerlabeling.cpp.
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overridevirtual |
Reimplemented from QgsAbstractVectorLayerLabeling.
Definition at line 49 of file qgsvectorlayerlabeling.cpp.
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overridevirtual |
Returns true
if drawing labels requires advanced effects like composition modes, which could prevent it being used as an isolated cached image or exported to a vector format.
Implements QgsAbstractVectorLayerLabeling.
Definition at line 95 of file qgsvectorlayerlabeling.cpp.
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overridevirtual |
Returns labeling configuration as XML element.
Implements QgsAbstractVectorLayerLabeling.
Definition at line 70 of file qgsvectorlayerlabeling.cpp.
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overridevirtual |
Set pal settings (takes ownership).
settings | Pal layer settings |
providerId | Unused parameter |
Implements QgsAbstractVectorLayerLabeling.
Definition at line 588 of file qgsvectorlayerlabeling.cpp.
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overridevirtual |
Gets associated label settings.
In case of multiple sub-providers with different settings, they are identified by their ID (e.g. in case of rule-based labeling, provider ID == rule key)
Implements QgsAbstractVectorLayerLabeling.
Definition at line 78 of file qgsvectorlayerlabeling.cpp.
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overridevirtual |
Writes the SE 1.1 TextSymbolizer element based on the current layer labeling settings.
Reimplemented from QgsAbstractVectorLayerLabeling.
Definition at line 561 of file qgsvectorlayerlabeling.cpp.
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overridevirtual |
Unique type string of the labeling configuration implementation.
Implements QgsAbstractVectorLayerLabeling.
Definition at line 60 of file qgsvectorlayerlabeling.cpp.