Registry of available symbol layer classes. More...

#include <qgssymbollayerregistry.h>

Public Member Functions
	QgsSymbolLayerRegistry ()

	QgsSymbolLayerRegistry (const QgsSymbolLayerRegistry &rh)=delete
	QgsSymbolLayerRegistry cannot be copied.

	~QgsSymbolLayerRegistry ()

bool	addSymbolLayerType (QgsSymbolLayerAbstractMetadata *metadata)
	Registers a new symbol layer type. Takes ownership of the metadata instance.

QgsSymbolLayer *	createSymbolLayer (const QString &name, const QVariantMap &properties=QVariantMap()) const
	create a new instance of symbol layer given symbol layer name and properties

QgsSymbolLayer *	createSymbolLayerFromSld (const QString &name, QDomElement &element) const
	create a new instance of symbol layer given symbol layer name and SLD

QgsSymbolLayerRegistry &	operator= (const QgsSymbolLayerRegistry &rh)=delete
	QgsSymbolLayerRegistry cannot be copied.

bool	removeSymbolLayerType (QgsSymbolLayerAbstractMetadata *metadata)
	Removes a symbol layer type.

void	resolveFonts (const QString &name, QVariantMap &properties, const QgsReadWriteContext &context) const
	Resolve fonts from the properties of a particular symbol layer.

void	resolvePaths (const QString &name, QVariantMap &properties, const QgsPathResolver &pathResolver, bool saving) const
	Resolve paths in properties of a particular symbol layer.

QgsSymbolLayerAbstractMetadata *	symbolLayerMetadata (const QString &name) const
	Returns metadata for specified symbol layer. Returns `nullptr` if not found.

QStringList	symbolLayersForType (Qgis::SymbolType type)
	Returns a list of available symbol layers for a specified symbol type.

Static Public Member Functions
static QgsSymbolLayer *	defaultSymbolLayer (Qgis::SymbolType type)
	create a new instance of symbol layer for specified symbol type with default settings

Detailed Description

Registry of available symbol layer classes.

QgsSymbolLayerRegistry is not usually directly created, but rather accessed through QgsApplication::symbolLayerRegistry().

Definition at line 182 of file qgssymbollayerregistry.h.

Constructor & Destructor Documentation

◆ QgsSymbolLayerRegistry() [1/2]

QgsSymbolLayerRegistry::QgsSymbolLayerRegistry ( )

Definition at line 28 of file qgssymbollayerregistry.cpp.

◆ ~QgsSymbolLayerRegistry()

QgsSymbolLayerRegistry::~QgsSymbolLayerRegistry ( )

Definition at line 90 of file qgssymbollayerregistry.cpp.

◆ QgsSymbolLayerRegistry() [2/2]

QgsSymbolLayerRegistry::QgsSymbolLayerRegistry ( const QgsSymbolLayerRegistry & rh )

delete

QgsSymbolLayerRegistry cannot be copied.

Member Function Documentation

◆ addSymbolLayerType()

bool QgsSymbolLayerRegistry::addSymbolLayerType ( QgsSymbolLayerAbstractMetadata * metadata )

Registers a new symbol layer type. Takes ownership of the metadata instance.

Definition at line 95 of file qgssymbollayerregistry.cpp.

◆ createSymbolLayer()

QgsSymbolLayer * QgsSymbolLayerRegistry::createSymbolLayer	(	const QString &	name,
		const QVariantMap &	properties = `QVariantMap()`
	)		const

create a new instance of symbol layer given symbol layer name and properties

Definition at line 141 of file qgssymbollayerregistry.cpp.

◆ createSymbolLayerFromSld()

QgsSymbolLayer * QgsSymbolLayerRegistry::createSymbolLayerFromSld	(	const QString &	name,
		QDomElement &	element
	)		const

create a new instance of symbol layer given symbol layer name and SLD

Definition at line 149 of file qgssymbollayerregistry.cpp.

◆ defaultSymbolLayer()

QgsSymbolLayer * QgsSymbolLayerRegistry::defaultSymbolLayer ( Qgis::SymbolType type )

static

create a new instance of symbol layer for specified symbol type with default settings

Definition at line 120 of file qgssymbollayerregistry.cpp.

◆ operator=()

QgsSymbolLayerRegistry & QgsSymbolLayerRegistry::operator= ( const QgsSymbolLayerRegistry & rh )

delete

QgsSymbolLayerRegistry cannot be copied.

◆ removeSymbolLayerType()

bool QgsSymbolLayerRegistry::removeSymbolLayerType ( QgsSymbolLayerAbstractMetadata * metadata )

Removes a symbol layer type.

Since: QGIS 3.22.2

Definition at line 104 of file qgssymbollayerregistry.cpp.

◆ resolveFonts()

void QgsSymbolLayerRegistry::resolveFonts	(	const QString &	name,
		QVariantMap &	properties,
		const QgsReadWriteContext &	context
	)		const

Resolve fonts from the properties of a particular symbol layer.

This tests whether the required fonts from the encoded properties are available on the system, and records warnings in the context if not.

Since: QGIS 3.20

Definition at line 165 of file qgssymbollayerregistry.cpp.

◆ resolvePaths()

void QgsSymbolLayerRegistry::resolvePaths	(	const QString &	name,
		QVariantMap &	properties,
		const QgsPathResolver &	pathResolver,
		bool	saving
	)		const

Resolve paths in properties of a particular symbol layer.

This normally means converting relative paths to absolute paths when loading and converting absolute paths to relative paths when saving.

Definition at line 157 of file qgssymbollayerregistry.cpp.

◆ symbolLayerMetadata()

QgsSymbolLayerAbstractMetadata * QgsSymbolLayerRegistry::symbolLayerMetadata ( const QString & name ) const

Returns metadata for specified symbol layer. Returns nullptr if not found.

Definition at line 115 of file qgssymbollayerregistry.cpp.

◆ symbolLayersForType()

QStringList QgsSymbolLayerRegistry::symbolLayersForType ( Qgis::SymbolType type )

Returns a list of available symbol layers for a specified symbol type.

Definition at line 173 of file qgssymbollayerregistry.cpp.

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

/build/qgis-3.36.0+99sid/src/core/symbology/qgssymbollayerregistry.h
/build/qgis-3.36.0+99sid/src/core/symbology/qgssymbollayerregistry.cpp

Public Member Functions

Static Public Member Functions