Convenience metadata class that uses static functions to create symbol layer and its widget. More...

#include <qgssymbollayerregistry.h>

Inheritance diagram for QgsSymbolLayerMetadata:

Public Member Functions
	QgsSymbolLayerMetadata (const QString &name, const QString &visibleName, Qgis::SymbolType type, QgsSymbolLayerCreateFunc pfCreate, QgsSymbolLayerCreateFromSldFunc pfCreateFromSld=nullptr, QgsSymbolLayerPathResolverFunc pfPathResolver=nullptr, QgsSymbolLayerWidgetFunc pfWidget=nullptr, QgsSymbolLayerFontResolverFunc pfFontResolver=nullptr)

QgsSymbolLayerCreateFromSldFunc	createFromSldFunction () const

QgsSymbolLayerCreateFunc	createFunction () const

QgsSymbolLayer *	createSymbolLayer (const QVariantMap &map) override
	Create a symbol layer of this type given the map of properties.

QgsSymbolLayer *	createSymbolLayerFromSld (QDomElement &elem) override
	Create a symbol layer of this type given the map of properties.

QgsSymbolLayerWidget *	createSymbolLayerWidget (QgsVectorLayer *vl) override
	Create widget for symbol layer of this type. Can return `nullptr` if there's no GUI.

QgsSymbolLayerPathResolverFunc	pathResolverFunction () const

void	resolveFonts (const QVariantMap &properties, const QgsReadWriteContext &context) override
	Resolve fonts from the symbol layer's properties.

void	resolvePaths (QVariantMap &properties, const QgsPathResolver &pathResolver, bool saving) override
	Resolve paths in symbol layer's properties (if there are any paths).

void	setWidgetFunction (QgsSymbolLayerWidgetFunc f)

QgsSymbolLayerWidgetFunc	widgetFunction () const

Public Member Functions inherited from QgsSymbolLayerAbstractMetadata
	QgsSymbolLayerAbstractMetadata (const QString &name, const QString &visibleName, Qgis::SymbolType type)
	Constructor for QgsSymbolLayerAbstractMetadata.

virtual	~QgsSymbolLayerAbstractMetadata ()=default

QString	name () const

Qgis::SymbolType	type () const

QString	visibleName () const

Protected Attributes
QgsSymbolLayerCreateFromSldFunc	mCreateFromSldFunc

QgsSymbolLayerCreateFunc	mCreateFunc

QgsSymbolLayerFontResolverFunc	mFontResolverFunc
	Font resolver function pointer.

QgsSymbolLayerPathResolverFunc	mPathResolverFunc

QgsSymbolLayerWidgetFunc	mWidgetFunc

Protected Attributes inherited from QgsSymbolLayerAbstractMetadata
QString	mName

Qgis::SymbolType	mType

QString	mVisibleName

Detailed Description

Convenience metadata class that uses static functions to create symbol layer and its widget.

Definition at line 109 of file qgssymbollayerregistry.h.

Constructor & Destructor Documentation

◆ QgsSymbolLayerMetadata()

QgsSymbolLayerMetadata::QgsSymbolLayerMetadata	(	const QString &	name,
		const QString &	visibleName,
		Qgis::SymbolType	type,
		QgsSymbolLayerCreateFunc	pfCreate,
		QgsSymbolLayerCreateFromSldFunc	pfCreateFromSld = `nullptr`,
		QgsSymbolLayerPathResolverFunc	pfPathResolver = `nullptr`,
		QgsSymbolLayerWidgetFunc	pfWidget = `nullptr`,
		QgsSymbolLayerFontResolverFunc	pfFontResolver = `nullptr`
	)

inline

Note: not available in Python bindings

Definition at line 113 of file qgssymbollayerregistry.h.

Member Function Documentation

◆ createFromSldFunction()

QgsSymbolLayerCreateFromSldFunc QgsSymbolLayerMetadata::createFromSldFunction ( ) const

inline

Note: not available in Python bindings

Definition at line 133 of file qgssymbollayerregistry.h.

◆ createFunction()

QgsSymbolLayerCreateFunc QgsSymbolLayerMetadata::createFunction ( ) const

inline

Note: not available in Python bindings

Definition at line 129 of file qgssymbollayerregistry.h.

◆ createSymbolLayer()

QgsSymbolLayer * QgsSymbolLayerMetadata::createSymbolLayer ( const QVariantMap & map )

inlineoverridevirtual

Create a symbol layer of this type given the map of properties.

Implements QgsSymbolLayerAbstractMetadata.

Definition at line 140 of file qgssymbollayerregistry.h.

◆ createSymbolLayerFromSld()

QgsSymbolLayer * QgsSymbolLayerMetadata::createSymbolLayerFromSld ( QDomElement & )

inlineoverridevirtual

Create a symbol layer of this type given the map of properties.

Reimplemented from QgsSymbolLayerAbstractMetadata.

Definition at line 142 of file qgssymbollayerregistry.h.

◆ createSymbolLayerWidget()

QgsSymbolLayerWidget * QgsSymbolLayerMetadata::createSymbolLayerWidget ( QgsVectorLayer * )

inlineoverridevirtual

Create widget for symbol layer of this type. Can return nullptr if there's no GUI.

Reimplemented from QgsSymbolLayerAbstractMetadata.

Definition at line 141 of file qgssymbollayerregistry.h.

◆ pathResolverFunction()

QgsSymbolLayerPathResolverFunc QgsSymbolLayerMetadata::pathResolverFunction ( ) const

inline

Note: not available in Python bindings

Definition at line 135 of file qgssymbollayerregistry.h.

◆ resolveFonts()

void QgsSymbolLayerMetadata::resolveFonts	(	const QVariantMap &	properties,
		const QgsReadWriteContext &	context
	)

inlineoverridevirtual

Resolve fonts from the symbol layer's properties.

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

Reimplemented from QgsSymbolLayerAbstractMetadata.

Definition at line 149 of file qgssymbollayerregistry.h.

◆ resolvePaths()

void QgsSymbolLayerMetadata::resolvePaths	(	QVariantMap &	properties,
		const QgsPathResolver &	pathResolver,
		bool	saving
	)

inlineoverridevirtual

Resolve paths in symbol layer's properties (if there are any paths).

When saving is true, paths are converted from absolute to relative, when saving is false, paths are converted from relative to absolute. This ensures that paths in project files can be relative, but in symbol layer instances the paths are always absolute

Reimplemented from QgsSymbolLayerAbstractMetadata.

Definition at line 143 of file qgssymbollayerregistry.h.

◆ setWidgetFunction()

void QgsSymbolLayerMetadata::setWidgetFunction ( QgsSymbolLayerWidgetFunc f )

inline

Note: not available in Python bindings

Definition at line 138 of file qgssymbollayerregistry.h.

◆ widgetFunction()

QgsSymbolLayerWidgetFunc QgsSymbolLayerMetadata::widgetFunction ( ) const

inline

Note: not available in Python bindings

Definition at line 131 of file qgssymbollayerregistry.h.

Member Data Documentation

◆ mCreateFromSldFunc

QgsSymbolLayerCreateFromSldFunc QgsSymbolLayerMetadata::mCreateFromSldFunc

protected

Definition at line 158 of file qgssymbollayerregistry.h.

◆ mCreateFunc

QgsSymbolLayerCreateFunc QgsSymbolLayerMetadata::mCreateFunc

protected

Definition at line 156 of file qgssymbollayerregistry.h.

◆ mFontResolverFunc

QgsSymbolLayerFontResolverFunc QgsSymbolLayerMetadata::mFontResolverFunc

protected

Font resolver function pointer.

Since: QGIS 3.20

Definition at line 166 of file qgssymbollayerregistry.h.

◆ mPathResolverFunc

QgsSymbolLayerPathResolverFunc QgsSymbolLayerMetadata::mPathResolverFunc

protected

Definition at line 159 of file qgssymbollayerregistry.h.

◆ mWidgetFunc

QgsSymbolLayerWidgetFunc QgsSymbolLayerMetadata::mWidgetFunc

protected

Definition at line 157 of file qgssymbollayerregistry.h.

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

/home/fischer/src/qgis-3.38/src/core/symbology/qgssymbollayerregistry.h

Public Member Functions

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

◆ QgsSymbolLayerMetadata()

Member Function Documentation

◆ createFromSldFunction()

◆ createFunction()

◆ createSymbolLayer()

◆ createSymbolLayerFromSld()

◆ createSymbolLayerWidget()

◆ pathResolverFunction()

◆ resolveFonts()

◆ resolvePaths()

◆ setWidgetFunction()

◆ widgetFunction()

Member Data Documentation

◆ mCreateFromSldFunc

◆ mCreateFunc

◆ mFontResolverFunc

◆ mPathResolverFunc

◆ mWidgetFunc