QgsSymbolLayerAbstractMetadata Class Reference

Stores metadata about one symbol layer class. More...

#include <qgssymbollayerregistry.h>

Inheritance diagram for QgsSymbolLayerAbstractMetadata:

Public Member Functions
	QgsSymbolLayerAbstractMetadata (const QString &name, const QString &visibleName, Qgis::SymbolType type)
	Constructor for QgsSymbolLayerAbstractMetadata.
virtual	~QgsSymbolLayerAbstractMetadata ()=default
virtual QgsSymbolLayer *	createSymbolLayer (const QVariantMap &map)=0
	Create a symbol layer of this type given the map of properties.
virtual QgsSymbolLayer *	createSymbolLayerFromSld (QDomElement &)
	Create a symbol layer of this type given the map of properties.
virtual QgsSymbolLayerWidget *	createSymbolLayerWidget (QgsVectorLayer *)
	Create widget for symbol layer of this type. Can return nullptr if there's no GUI.
QString	name () const
virtual void	resolveFonts (const QVariantMap &properties, const QgsReadWriteContext &context)
	Resolve fonts from the symbol layer's properties.
virtual void	resolvePaths (QVariantMap &properties, const QgsPathResolver &pathResolver, bool saving)
	Resolve paths in symbol layer's properties (if there are any paths).
Qgis::SymbolType	type () const
QString	visibleName () const

Protected Attributes
QString	mName
Qgis::SymbolType	mType
QString	mVisibleName

Detailed Description

Stores metadata about one symbol layer class.

Note

It's necessary to implement createSymbolLayer() function. In C++ you can use QgsSymbolLayerMetadata convenience class.

Definition at line 36 of file qgssymbollayerregistry.h.

Constructor & Destructor Documentation

QgsSymbolLayerAbstractMetadata()

QgsSymbolLayerAbstractMetadata::QgsSymbolLayerAbstractMetadata ( const QString &  name, const QString &  visibleName, Qgis::SymbolType  type  )

inline

Constructor for QgsSymbolLayerAbstractMetadata.

Parameters

name	internal symbol layer name (unique identifier)
visibleName	user visible, translated name for symbol layer
type	associated symbol type

Definition at line 46 of file qgssymbollayerregistry.h.

~QgsSymbolLayerAbstractMetadata()

virtual QgsSymbolLayerAbstractMetadata::~QgsSymbolLayerAbstractMetadata ( )

virtualdefault

Member Function Documentation

createSymbolLayer()

virtual QgsSymbolLayer * QgsSymbolLayerAbstractMetadata::createSymbolLayer ( const QVariantMap &  map )

pure virtual

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

Implemented in QgsSymbolLayerMetadata.

createSymbolLayerFromSld()

virtual QgsSymbolLayer * QgsSymbolLayerAbstractMetadata::createSymbolLayerFromSld ( QDomElement &  )

inlinevirtual

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

Reimplemented in QgsSymbolLayerMetadata.

Definition at line 63 of file qgssymbollayerregistry.h.

createSymbolLayerWidget()

virtual QgsSymbolLayerWidget * QgsSymbolLayerAbstractMetadata::createSymbolLayerWidget ( QgsVectorLayer *  )

inlinevirtual

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

Reimplemented in QgsSymbolLayerMetadata.

Definition at line 61 of file qgssymbollayerregistry.h.

name()

QString QgsSymbolLayerAbstractMetadata::name ( ) const

inline

Definition at line 54 of file qgssymbollayerregistry.h.

resolveFonts()

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

inlinevirtual

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 in QgsSymbolLayerMetadata.

Definition at line 87 of file qgssymbollayerregistry.h.

resolvePaths()

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

inlinevirtual

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 in QgsSymbolLayerMetadata.

Definition at line 72 of file qgssymbollayerregistry.h.

type()

Qgis::SymbolType QgsSymbolLayerAbstractMetadata::type ( ) const

inline

Definition at line 56 of file qgssymbollayerregistry.h.

visibleName()

QString QgsSymbolLayerAbstractMetadata::visibleName ( ) const

inline

Definition at line 55 of file qgssymbollayerregistry.h.

Member Data Documentation

mName

QString QgsSymbolLayerAbstractMetadata::mName

protected

Definition at line 94 of file qgssymbollayerregistry.h.

mType

Qgis::SymbolType QgsSymbolLayerAbstractMetadata::mType

protected

Definition at line 96 of file qgssymbollayerregistry.h.

mVisibleName

QString QgsSymbolLayerAbstractMetadata::mVisibleName

protected

Definition at line 95 of file qgssymbollayerregistry.h.

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

• /build/qgis-3.41.0+git20241122+3440c17df1d+99sid/src/core/symbology/qgssymbollayerregistry.h