QGIS API Documentation  3.5.0-Master (bebc34b)
Public Member Functions | Static Public Member Functions | List of all members
QgsVectorLayerSimpleLabeling Class Reference

Basic implementation of the labeling interface. More...

#include <qgsvectorlayerlabeling.h>

Inheritance diagram for QgsVectorLayerSimpleLabeling:
Inheritance graph
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Public Member Functions

 QgsVectorLayerSimpleLabeling (const QgsPalLayerSettings &settings)
 Constructs simple labeling configuration with given initial settings. More...
 
QgsAbstractVectorLayerLabelingclone () const override
 Returns a new copy of the object. More...
 
QgsVectorLayerLabelProviderprovider (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 QgsVectorLayerSimpleLabelingcreate (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 QgsAbstractVectorLayerLabelingcreate (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...
 

Detailed Description

Basic implementation of the labeling interface.

The configuration is kept in layer's custom properties for backward compatibility.

Since
QGIS 3.0

Definition at line 144 of file qgsvectorlayerlabeling.h.

Constructor & Destructor Documentation

◆ QgsVectorLayerSimpleLabeling()

QgsVectorLayerSimpleLabeling::QgsVectorLayerSimpleLabeling ( const QgsPalLayerSettings settings)
explicit

Constructs simple labeling configuration with given initial settings.

Definition at line 48 of file qgsvectorlayerlabeling.cpp.

Member Function Documentation

◆ clone()

QgsAbstractVectorLayerLabeling * QgsVectorLayerSimpleLabeling::clone ( ) const
overridevirtual

Returns a new copy of the object.

Implements QgsAbstractVectorLayerLabeling.

Definition at line 59 of file qgsvectorlayerlabeling.cpp.

◆ create()

QgsVectorLayerSimpleLabeling * QgsVectorLayerSimpleLabeling::create ( const QDomElement &  element,
const QgsReadWriteContext context 
)
static

Create the instance from a DOM element with saved configuration.

Definition at line 83 of file qgsvectorlayerlabeling.cpp.

◆ provider()

QgsVectorLayerLabelProvider * QgsVectorLayerSimpleLabeling::provider ( QgsVectorLayer layer) const
overridevirtual
Note
not available in Python bindings

Reimplemented from QgsAbstractVectorLayerLabeling.

Definition at line 43 of file qgsvectorlayerlabeling.cpp.

◆ requiresAdvancedEffects()

bool QgsVectorLayerSimpleLabeling::requiresAdvancedEffects ( ) const
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.

Since
QGIS 3.0

Implements QgsAbstractVectorLayerLabeling.

Definition at line 78 of file qgsvectorlayerlabeling.cpp.

◆ save()

QDomElement QgsVectorLayerSimpleLabeling::save ( QDomDocument &  doc,
const QgsReadWriteContext context 
) const
overridevirtual

Returns labeling configuration as XML element.

Implements QgsAbstractVectorLayerLabeling.

Definition at line 64 of file qgsvectorlayerlabeling.cpp.

◆ setSettings()

void QgsVectorLayerSimpleLabeling::setSettings ( QgsPalLayerSettings settings,
const QString &  providerId = QString() 
)
overridevirtual

Set pal settings (takes ownership).

Parameters
settingsPal layer settings
providerIdUnused parameter
Since
QGIS 3.0

Implements QgsAbstractVectorLayerLabeling.

Definition at line 559 of file qgsvectorlayerlabeling.cpp.

◆ settings()

QgsPalLayerSettings QgsVectorLayerSimpleLabeling::settings ( const QString &  providerId = QString()) const
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 72 of file qgsvectorlayerlabeling.cpp.

◆ toSld()

void QgsVectorLayerSimpleLabeling::toSld ( QDomNode &  parent,
const QgsStringMap props 
) const
overridevirtual

Writes the SE 1.1 TextSymbolizer element based on the current layer labeling settings.

Reimplemented from QgsAbstractVectorLayerLabeling.

Definition at line 532 of file qgsvectorlayerlabeling.cpp.

◆ type()

QString QgsVectorLayerSimpleLabeling::type ( ) const
overridevirtual

Unique type string of the labeling configuration implementation.

Implements QgsAbstractVectorLayerLabeling.

Definition at line 54 of file qgsvectorlayerlabeling.cpp.


The documentation for this class was generated from the following files: