Registry of available layout item GUI behavior. More...

#include <qgslayoutitemguiregistry.h>

Inheritance diagram for QgsLayoutItemGuiRegistry:

Signals
void	typeAdded (int metadataId)
	Emitted whenever a new item type is added to the registry, with the specified metadataId.

Public Member Functions
	QgsLayoutItemGuiRegistry (const QgsLayoutItemGuiRegistry &rh)=delete
	QgsLayoutItemGuiRegistry cannot be copied.

	QgsLayoutItemGuiRegistry (QObject *parent=nullptr)
	Creates a new empty item GUI registry.

	~QgsLayoutItemGuiRegistry () override

bool	addItemGroup (const QgsLayoutItemGuiGroup &group)
	Registers a new item group with the registry.

bool	addLayoutItemGuiMetadata (QgsLayoutItemAbstractGuiMetadata *metadata)
	Registers the gui metadata for a new layout item type.

QgsLayoutItem *	createItem (int metadataId, QgsLayout *layout) const
	Creates a new instance of a layout item given the item metadata metadataId, target layout.

QgsLayoutViewRubberBand *	createItemRubberBand (int metadataId, QgsLayoutView *view) const
	Creates a new rubber band item for the specified item metadataId and destination view.

QgsLayoutItemBaseWidget *	createItemWidget (QgsLayoutItem *item) const
	Creates a new instance of a layout item configuration widget for the specified item.

QAbstractGraphicsShapeItem *	createNodeItemRubberBand (int metadataId, QgsLayoutView *view)
	Creates a rubber band for the specified item metadataId and destination view.

const QgsLayoutItemGuiGroup &	itemGroup (const QString &id)
	Returns a reference to the item group with matching id.

QgsLayoutItemAbstractGuiMetadata *	itemMetadata (int metadataId) const
	Returns the metadata for the specified item metadataId.

QList< int >	itemMetadataIds () const
	Returns a list of available item metadata ids handled by the registry.

int	metadataIdForItemType (int type) const
	Returns the GUI item metadata ID which corresponds to the specified layout item type.

void	newItemAddedToLayout (int metadataId, QgsLayoutItem *item, const QVariantMap &properties=QVariantMap())
	Called when a newly created item of the associated metadata metadataId has been added to a layout.

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

Detailed Description

Registry of available layout item GUI behavior.

QgsLayoutItemGuiRegistry is not usually directly created, but rather accessed through QgsGui::layoutItemGuiRegistry().

This acts as a companion to QgsLayoutItemRegistry, handling only the components related to the GUI behavior of layout items.

Definition at line 356 of file qgslayoutitemguiregistry.h.

Constructor & Destructor Documentation

◆ QgsLayoutItemGuiRegistry() [1/2]

QgsLayoutItemGuiRegistry::QgsLayoutItemGuiRegistry ( QObject * parent = nullptr )

Creates a new empty item GUI registry.

QgsLayoutItemGuiRegistry is not usually directly created, but rather accessed through QgsGui::layoutItemGuiRegistry().

Definition at line 45 of file qgslayoutitemguiregistry.cpp.

◆ ~QgsLayoutItemGuiRegistry()

QgsLayoutItemGuiRegistry::~QgsLayoutItemGuiRegistry ( )

override

Definition at line 50 of file qgslayoutitemguiregistry.cpp.

◆ QgsLayoutItemGuiRegistry() [2/2]

QgsLayoutItemGuiRegistry::QgsLayoutItemGuiRegistry ( const QgsLayoutItemGuiRegistry & rh )

delete

QgsLayoutItemGuiRegistry cannot be copied.

Member Function Documentation

◆ addItemGroup()

bool QgsLayoutItemGuiRegistry::addItemGroup ( const QgsLayoutItemGuiGroup & group )

Registers a new item group with the registry.

This must be done before calling addLayoutItemGuiMetadata() for any item types associated with the group.

Returns true if group was added, or false if group could not be added (e.g. due to duplicate id value).

See also: itemGroup()

Definition at line 81 of file qgslayoutitemguiregistry.cpp.

◆ addLayoutItemGuiMetadata()

bool QgsLayoutItemGuiRegistry::addLayoutItemGuiMetadata ( QgsLayoutItemAbstractGuiMetadata * metadata )

Registers the gui metadata for a new layout item type.

Takes ownership of the metadata instance.

Definition at line 70 of file qgslayoutitemguiregistry.cpp.

◆ createItem()

QgsLayoutItem * QgsLayoutItemGuiRegistry::createItem	(	int	metadataId,
		QgsLayout *	layout
	)		const

Creates a new instance of a layout item given the item metadata metadataId, target layout.

Definition at line 95 of file qgslayoutitemguiregistry.cpp.

◆ createItemRubberBand()

QgsLayoutViewRubberBand * QgsLayoutItemGuiRegistry::createItemRubberBand	(	int	metadataId,
		QgsLayoutView *	view
	)		const

Creates a new rubber band item for the specified item metadataId and destination view.

Note: not available from Python bindings

See also: createNodeItemRubberBand()

Definition at line 144 of file qgslayoutitemguiregistry.cpp.

◆ createItemWidget()

QgsLayoutItemBaseWidget * QgsLayoutItemGuiRegistry::createItemWidget ( QgsLayoutItem * item ) const

Creates a new instance of a layout item configuration widget for the specified item.

Definition at line 123 of file qgslayoutitemguiregistry.cpp.

◆ createNodeItemRubberBand()

QAbstractGraphicsShapeItem * QgsLayoutItemGuiRegistry::createNodeItemRubberBand	(	int	metadataId,
		QgsLayoutView *	view
	)

Creates a rubber band for the specified item metadataId and destination view.

Can return nullptr if no node based rubber band should be created or is applicable for the item.

See also: createItemRubberBand()

Note: not available from Python bindings

Definition at line 152 of file qgslayoutitemguiregistry.cpp.

◆ itemGroup()

const QgsLayoutItemGuiGroup & QgsLayoutItemGuiRegistry::itemGroup ( const QString & id )

Returns a reference to the item group with matching id.

See also: addItemGroup()

Definition at line 90 of file qgslayoutitemguiregistry.cpp.

◆ itemMetadata()

QgsLayoutItemAbstractGuiMetadata * QgsLayoutItemGuiRegistry::itemMetadata ( int metadataId ) const

Returns the metadata for the specified item metadataId.

Returns nullptr if a corresponding metadataId was not found in the registry.

Definition at line 55 of file qgslayoutitemguiregistry.cpp.

◆ itemMetadataIds()

QList< int > QgsLayoutItemGuiRegistry::itemMetadataIds ( ) const

Returns a list of available item metadata ids handled by the registry.

Definition at line 160 of file qgslayoutitemguiregistry.cpp.

◆ metadataIdForItemType()

int QgsLayoutItemGuiRegistry::metadataIdForItemType ( int type ) const

Returns the GUI item metadata ID which corresponds to the specified layout item type.

In the case that multiple GUI metadata classes exist for a single layout item type then only the first encountered GUI metadata ID will be returned.

Returns -1 if no matching metadata is found in the GUI registry.

Since: QGIS 3.18

Definition at line 60 of file qgslayoutitemguiregistry.cpp.

◆ newItemAddedToLayout()

void QgsLayoutItemGuiRegistry::newItemAddedToLayout	(	int	metadataId,
		QgsLayoutItem *	item,
		const QVariantMap &	properties = `QVariantMap()`
	)

Called when a newly created item of the associated metadata metadataId has been added to a layout.

This is only called for additions which result from GUI operations - i.e. it is not called for items added from templates.

Since QGIS 3.18 the optional properties argument can be used to pass custom properties to the QgsLayoutItemGuiMetadata::newItemAddedToLayout() function.

Definition at line 108 of file qgslayoutitemguiregistry.cpp.

◆ operator=()

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