QgsPaintEffectRegistry Class Reference

Registry of available paint effects. More...

#include <qgspainteffectregistry.h>

Public Member Functions
	QgsPaintEffectRegistry ()
	QgsPaintEffectRegistry (const QgsPaintEffectRegistry &rh)=delete
	QgsPaintEffectRegistry cannot be copied.
	~QgsPaintEffectRegistry ()
bool	addEffectType (QgsPaintEffectAbstractMetadata *metadata)
	Registers a new effect type.
QgsPaintEffect *	createEffect (const QDomElement &element) const
	Creates a new paint effect given a DOM element storing paint effect properties.
QgsPaintEffect *	createEffect (const QString &name, const QVariantMap &properties=QVariantMap()) const
	Creates a new paint effect given the effect name and properties map.
QgsPaintEffectAbstractMetadata *	effectMetadata (const QString &name) const
	Returns the metadata for a specific effect.
QStringList	effects () const
	Returns a list of known paint effects.
QgsPaintEffectRegistry &	operator= (const QgsPaintEffectRegistry &rh)=delete
	QgsPaintEffectRegistry cannot be copied.

Static Public Member Functions
static QgsPaintEffect *	defaultStack ()
	Returns a new effect stack consisting of a sensible selection of default effects.
static bool	isDefaultStack (QgsPaintEffect *effect)
	Tests whether a paint effect matches the default effects stack.

Detailed Description

Registry of available paint effects.

QgsPaintEffectRegistry is not usually directly created, but rather accessed through QgsApplication::paintEffectRegistry().

Definition at line 172 of file qgspainteffectregistry.h.

Constructor & Destructor Documentation

QgsPaintEffectRegistry() [1/2]

QgsPaintEffectRegistry::QgsPaintEffectRegistry

(

)

Definition at line 32 of file qgspainteffectregistry.cpp.

~QgsPaintEffectRegistry()

QgsPaintEffectRegistry::~QgsPaintEffectRegistry

(

)

Definition at line 55 of file qgspainteffectregistry.cpp.

QgsPaintEffectRegistry() [2/2]

QgsPaintEffectRegistry::QgsPaintEffectRegistry ( const QgsPaintEffectRegistry &  rh )

delete

QgsPaintEffectRegistry cannot be copied.

Member Function Documentation

addEffectType()

bool QgsPaintEffectRegistry::addEffectType

(

QgsPaintEffectAbstractMetadata *

metadata

)

Registers a new effect type.

Parameters

metadata

effect metadata. Ownership is transferred to the registry.

Returns

true if add was successful.

Definition at line 68 of file qgspainteffectregistry.cpp.

createEffect() [1/2]

QgsPaintEffect * QgsPaintEffectRegistry::createEffect

(

const QDomElement &

element

)

const

Creates a new paint effect given a DOM element storing paint effect properties.

Parameters

element

encoded DOM element of effect properties

Returns

new paint effect, or nullptr if matching paint effect could not be created

Definition at line 86 of file qgspainteffectregistry.cpp.

createEffect() [2/2]

QgsPaintEffect * QgsPaintEffectRegistry::createEffect	(	const QString &	name,
		const QVariantMap &	properties = QVariantMap()
	)		const

Creates a new paint effect given the effect name and properties map.

Parameters

name	unique name representing paint effect class
properties	encoded string map of effect properties

Returns

new paint effect of specified class, or nullptr if matching paint effect could not be created

Definition at line 77 of file qgspainteffectregistry.cpp.

defaultStack()

QgsPaintEffect * QgsPaintEffectRegistry::defaultStack ( )

static

Returns a new effect stack consisting of a sensible selection of default effects.

All effects except the standard draw source effect are disabled, but are included so that they can be easily drawn just by enabling the effect.

Returns

default effects stack

See also

isDefaultStack()

Definition at line 114 of file qgspainteffectregistry.cpp.

effectMetadata()

QgsPaintEffectAbstractMetadata * QgsPaintEffectRegistry::effectMetadata

(

const QString &

name

)

const

Returns the metadata for a specific effect.

Parameters

name	unique string name for paint effect class

Returns

paint effect metadata if found, otherwise nullptr

Definition at line 60 of file qgspainteffectregistry.cpp.

effects()

QStringList QgsPaintEffectRegistry::effects

(

)

const

Returns a list of known paint effects.

Returns

list of paint effect names

Definition at line 103 of file qgspainteffectregistry.cpp.

isDefaultStack()

bool QgsPaintEffectRegistry::isDefaultStack ( QgsPaintEffect *  effect )

static

Tests whether a paint effect matches the default effects stack.

Parameters

effect

paint effect to test

Returns

true if effect is default stack

See also

defaultStack()

Definition at line 134 of file qgspainteffectregistry.cpp.

operator=()

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

delete

QgsPaintEffectRegistry cannot be copied.

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

• /home/fischer/src/qgis-3.38/src/core/effects/qgspainteffectregistry.h
• /home/fischer/src/qgis-3.38/src/core/effects/qgspainteffectregistry.cpp