Item that represents a layer that can be opened with one of the providers. More...

#include <qgsdataitem.h>

Inheritance diagram for QgsLayerItem:

Public Types
enum	LayerType { NoType , Vector , Raster , Point , Line , Polygon , TableLayer , Database , Table , Plugin , Mesh , VectorTile , PointCloud }

Public Types inherited from QgsDataItem
enum	Capability { NoCapabilities = 0 , SetCrs = 1 << 0 , Fertile = 1 << 1 , Fast = 1 << 2 , Collapse = 1 << 3 , Rename = 1 << 4 , Delete = 1 << 5 }

enum	State { NotPopulated , Populating , Populated }

enum	Type { Collection , Directory , Layer , Error , Favorites , Project , Custom , Fields , Field }

Public Member Functions
	QgsLayerItem (QgsDataItem *parent, const QString &name, const QString &path, const QString &uri, LayerType layerType, const QString &providerKey)

virtual QString	comments () const
	Returns comments of the layer. More...

virtual Q_DECL_DEPRECATED bool	deleteLayer ()
	Delete this layer item Use QgsDataItemGuiProvider::deleteLayer instead. More...

bool	equal (const QgsDataItem *other) override
	Returns `true` if this item is equal to another item (by testing item type and path). More...

bool	hasDragEnabled () const override
	Returns `true` if the item may be dragged. More...

virtual QString	layerName () const

QgsMapLayerType	mapLayerType () const
	Returns QgsMapLayerType. More...

QgsMimeDataUtils::UriList	mimeUris () const override
	Returns mime URIs for the data item, most data providers will only return a single URI but some data collection items (e.g. More...

QString	providerKey () const
	Returns provider key. More...

QStringList	supportedCrs () const
	Returns the supported CRS. More...

QStringList	supportedFormats () const
	Returns the supported formats. More...

QString	uri () const
	Returns layer uri or empty string if layer cannot be created. More...

Public Member Functions inherited from QgsDataItem
	QgsDataItem (QgsDataItem::Type type, QgsDataItem *parent, const QString &name, const QString &path, const QString &providerKey=QString())
	Constructor for QgsDataItem, with the specified parent item. More...

	~QgsDataItem () override

virtual Q_DECL_DEPRECATED bool	acceptDrop ()
	Returns whether the item accepts drag and dropped layers - e.g. More...

virtual QList< QAction * >	actions (QWidget *parent)
	Returns the list of actions available for this item. More...

virtual void	addChildItem (QgsDataItem *child, bool refresh=false)
	Inserts a new child item. More...

virtual Capabilities	capabilities2 () const
	Returns the capabilities for the data item. More...

QVector< QgsDataItem * >	children () const

virtual QVector< QgsDataItem * >	createChildren ()
	Create children. More...

virtual QgsAbstractDatabaseProviderConnection *	databaseConnection () const
	For data items that represent a DB connection or one of its children, this method returns a connection. More...

virtual void	deleteChildItem (QgsDataItem *child)
	Removes and deletes a child item, emitting relevant signals to the model. More...

virtual bool	handleDoubleClick ()
	Called when a user double clicks on the item. More...

virtual Q_DECL_DEPRECATED bool	handleDrop (const QMimeData *, Qt::DropAction)
	Attempts to process the mime data dropped on this item. More...

bool	hasChildren ()

virtual QIcon	icon ()

virtual bool	layerCollection () const
	Returns `true` if the data item is a collection of layers The default implementation returns `false`, subclasses must implement this method if their children are layers. More...

virtual QList< QMenu * >	menus (QWidget *parent)
	Returns the list of menus available for this item. More...

virtual Q_DECL_DEPRECATED QgsMimeDataUtils::Uri	mimeUri () const
	Returns mime URI for the data item. More...

void	moveToThread (QThread *targetThread)
	Move object and all its descendants to thread. More...

QString	name () const
	Returns the name of the item (the displayed text for the item). More...

virtual Q_DECL_DEPRECATED QWidget *	paramWidget ()
	Returns source widget from data item for QgsBrowserPropertiesWidget. More...

QgsDataItem *	parent () const
	Gets item parent. More...

QString	path () const

QString	providerKey () const
	Returns the provider key that created this item (e.g. More...

virtual QgsDataItem *	removeChildItem (QgsDataItem *child)
	Removes a child item and returns it without deleting it. More...

virtual Q_DECL_DEPRECATED bool	rename (const QString &name)
	Sets a new name for the item, and returns `true` if the item was successfully renamed. More...

int	rowCount ()

virtual void	setCapabilities (Capabilities capabilities)
	Sets the capabilities for the data item. More...

virtual Q_DECL_DEPRECATED bool	setCrs (const QgsCoordinateReferenceSystem &crs)
	Writes the selected crs into data source. More...

void	setIcon (const QIcon &icon)

void	setIconName (const QString &iconName)

void	setName (const QString &name)
	Sets the name of the item (the displayed text for the item). More...

void	setParent (QgsDataItem *parent)
	Set item parent and connect / disconnect parent to / from item signals. More...

void	setPath (const QString &path)

void	setProviderKey (const QString &value)
	Sets the provider key that created this item (e.g. More...

void	setSortKey (const QVariant &key)
	Sets a custom sorting key for the item. More...

virtual void	setState (State state)
	Set item state. More...

void	setToolTip (const QString &msg)

virtual QVariant	sortKey () const
	Returns the sorting key for the item. More...

State	state () const

QString	toolTip () const

Type	type () const

Static Public Member Functions
static QIcon	iconDefault ()

static QIcon	iconForWkbType (QgsWkbTypes::Type type)
	Returns the icon for a vector layer whose geometry type is provided. More...

static QIcon	iconLine ()

static QIcon	iconMesh ()
	Returns icon for mesh layer type. More...

static QString	iconName (LayerType layerType)
	Returns the icon name of the given layerType. More...

static QIcon	iconPoint ()

static QIcon	iconPointCloud ()
	Returns icon for point cloud layer. More...

static QIcon	iconPolygon ()

static QIcon	iconRaster ()

static QIcon	iconTable ()

static QIcon	iconVectorTile ()
	Returns icon for vector tile layer. More...

static QString	layerTypeAsString (LayerType layerType)
	Returns the string representation of the given layerType. More...

static LayerType	typeFromMapLayer (QgsMapLayer *layer)
	Returns the layer item type corresponding to a QgsMapLayer layer. More...

Static Public Member Functions inherited from QgsDataItem
static void	deleteLater (QVector< QgsDataItem * > &items)

static int	findItem (QVector< QgsDataItem * > items, QgsDataItem *item)

static QString	pathComponent (const QString &component)
	Create path component replacing path separators. More...

Protected Attributes
LayerType	mLayerType
	The layer type. More...

QStringList	mSupportedCRS
	The list of supported CRS. More...

QStringList	mSupportFormats
	The list of supported formats. More...

QString	mUri
	The URI. More...

Protected Attributes inherited from QgsDataItem
Capabilities	mCapabilities

QVector< QgsDataItem * >	mChildren

QIcon	mIcon

QMap< QString, QIcon >	mIconMap

QString	mIconName

QString	mName

QgsDataItem *	mParent = nullptr

QString	mPath

QString	mProviderKey

QVariant	mSortKey
	Custom sort key. If invalid, name() will be used for sorting instead. More...

State	mState

QString	mToolTip

Type	mType

Additional Inherited Members
Public Slots inherited from QgsDataItem
virtual void	childrenCreated ()

virtual void	deleteLater ()
	Safely delete the item: More...

virtual void	depopulate ()
	Remove children recursively and set as not populated. This is used when refreshing collapsed items. More...

virtual void	populate (bool foreground=false)

virtual void	refresh ()

virtual void	refreshConnections (const QString &providerKey=QString())
	Causes a data item provider to refresh all registered connections. More...

Signals inherited from QgsDataItem
void	beginInsertItems (QgsDataItem *parent, int first, int last)

void	beginRemoveItems (QgsDataItem *parent, int first, int last)

void	connectionsChanged (const QString &providerKey=QString())
	Emitted when the connections of the provider with the specified providerKey have changed. More...

void	dataChanged (QgsDataItem *item)

void	endInsertItems ()

void	endRemoveItems ()

void	stateChanged (QgsDataItem *item, QgsDataItem::State oldState)

Protected Slots inherited from QgsDataItem
void	updateIcon ()
	Will request a repaint of this icon. More...

Protected Member Functions inherited from QgsDataItem
bool	deferredDelete ()
	The item is scheduled to be deleted. More...

virtual void	populate (const QVector< QgsDataItem * > &children)

virtual void	refresh (const QVector< QgsDataItem * > &children)
	Refresh the items from a specified list of child items. More...

Detailed Description

Item that represents a layer that can be opened with one of the providers.

Definition at line 553 of file qgsdataitem.h.

Member Enumeration Documentation

◆ LayerType

enum QgsLayerItem::LayerType

Enumerator
NoType
Vector
Raster
Point
Line
Polygon
TableLayer
Database
Table
Plugin	Added in 2.10.
Mesh	Added in 3.2.
VectorTile	Added in 3.14.
PointCloud	Added in 3.18.

Definition at line 558 of file qgsdataitem.h.

Constructor & Destructor Documentation

◆ QgsLayerItem()

QgsLayerItem::QgsLayerItem	(	QgsDataItem *	parent,
		const QString &	name,
		const QString &	path,
		const QString &	uri,
		LayerType	layerType,
		const QString &	providerKey
	)

Definition at line 876 of file qgsdataitem.cpp.

Member Function Documentation

◆ comments()

virtual QString QgsLayerItem::comments ( ) const

inlinevirtual

Returns comments of the layer.

Since: QGIS 2.12

Definition at line 620 of file qgsdataitem.h.

◆ deleteLayer()

bool QgsLayerItem::deleteLayer ( )

virtual

Delete this layer item Use QgsDataItemGuiProvider::deleteLayer instead.

Deprecated:: QGIS 3.10

Definition at line 994 of file qgsdataitem.cpp.

◆ equal()

bool QgsLayerItem::equal ( const QgsDataItem * other )

overridevirtual

Returns true if this item is equal to another item (by testing item type and path).

Reimplemented from QgsDataItem.

Definition at line 999 of file qgsdataitem.cpp.

◆ hasDragEnabled()

bool QgsLayerItem::hasDragEnabled ( ) const

inlineoverridevirtual

Returns true if the item may be dragged.

Default implementation returns false. A draggable item has to implement mimeUris() that will be used to pass data.

See also: mimeUris()

Since: QGIS 3.0

Reimplemented from QgsDataItem.

Definition at line 583 of file qgsdataitem.h.

◆ iconDefault()

QIcon QgsLayerItem::iconDefault ( )

static

Definition at line 116 of file qgsdataitem.cpp.

◆ iconForWkbType()

QIcon QgsLayerItem::iconForWkbType ( QgsWkbTypes::Type type )

static

Returns the icon for a vector layer whose geometry type is provided.

Since: QGIS 3.18

Definition at line 57 of file qgsdataitem.cpp.

◆ iconLine()

QIcon QgsLayerItem::iconLine ( )

static

Definition at line 81 of file qgsdataitem.cpp.

◆ iconMesh()

QIcon QgsLayerItem::iconMesh ( )

static

Returns icon for mesh layer type.

Definition at line 101 of file qgsdataitem.cpp.

◆ iconName()

QString QgsLayerItem::iconName ( QgsLayerItem::LayerType layerType )

static

Returns the icon name of the given layerType.

Since: QGIS 3

Definition at line 967 of file qgsdataitem.cpp.

◆ iconPoint()

QIcon QgsLayerItem::iconPoint ( )

static

Definition at line 76 of file qgsdataitem.cpp.

◆ iconPointCloud()

QIcon QgsLayerItem::iconPointCloud ( )

static

Returns icon for point cloud layer.

Definition at line 111 of file qgsdataitem.cpp.

◆ iconPolygon()

QIcon QgsLayerItem::iconPolygon ( )

static

Definition at line 86 of file qgsdataitem.cpp.

◆ iconRaster()

QIcon QgsLayerItem::iconRaster ( )

static

Definition at line 96 of file qgsdataitem.cpp.

◆ iconTable()

QIcon QgsLayerItem::iconTable ( )

static

Definition at line 91 of file qgsdataitem.cpp.

◆ iconVectorTile()

QIcon QgsLayerItem::iconVectorTile ( )

static

Returns icon for vector tile layer.

Definition at line 106 of file qgsdataitem.cpp.

◆ layerName()

virtual QString QgsLayerItem::layerName ( ) const

inlinevirtual

Returns: the layer name

Definition at line 673 of file qgsdataitem.h.

◆ layerTypeAsString()

QString QgsLayerItem::layerTypeAsString ( QgsLayerItem::LayerType layerType )

static

Returns the string representation of the given layerType.

Since: QGIS 3

Definition at line 961 of file qgsdataitem.cpp.

◆ mapLayerType()

QgsMapLayerType QgsLayerItem::mapLayerType ( ) const

Returns QgsMapLayerType.

Definition at line 885 of file qgsdataitem.cpp.

◆ mimeUris()

QgsMimeDataUtils::UriList QgsLayerItem::mimeUris ( ) const

overridevirtual

Returns mime URIs for the data item, most data providers will only return a single URI but some data collection items (e.g.

GPKG, OGR) may report multiple URIs (e.g. for vector and raster layer types).

Items that return valid URI will be returned in mime data when dragging a selection from browser model.

Since: QGIS 3.18

Reimplemented from QgsDataItem.

Definition at line 1014 of file qgsdataitem.cpp.

◆ providerKey()

QString QgsLayerItem::providerKey ( ) const

inline

Returns provider key.

Definition at line 602 of file qgsdataitem.h.

◆ supportedCrs()

QStringList QgsLayerItem::supportedCrs ( ) const

inline

Returns the supported CRS.

Since: QGIS 2.8

Definition at line 608 of file qgsdataitem.h.

◆ supportedFormats()

QStringList QgsLayerItem::supportedFormats ( ) const

inline

Returns the supported formats.

Since: QGIS 2.8

Definition at line 614 of file qgsdataitem.h.

◆ typeFromMapLayer()

QgsLayerItem::LayerType QgsLayerItem::typeFromMapLayer ( QgsMapLayer * layer )

static

Returns the layer item type corresponding to a QgsMapLayer layer.

Since: QGIS 3.6

Definition at line 918 of file qgsdataitem.cpp.

◆ uri()

QString QgsLayerItem::uri ( ) const

inline

Returns layer uri or empty string if layer cannot be created.

Definition at line 599 of file qgsdataitem.h.

Member Data Documentation

◆ mLayerType

LayerType QgsLayerItem::mLayerType

protected

The layer type.

Definition at line 646 of file qgsdataitem.h.

◆ mSupportedCRS

QStringList QgsLayerItem::mSupportedCRS

protected

The list of supported CRS.

Definition at line 648 of file qgsdataitem.h.

◆ mSupportFormats

QStringList QgsLayerItem::mSupportFormats

protected

The list of supported formats.

Definition at line 650 of file qgsdataitem.h.

◆ mUri

QString QgsLayerItem::mUri

protected

The URI.

Definition at line 644 of file qgsdataitem.h.

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

/build/qgis-3.18.1+99unstable/src/core/qgsdataitem.h
/build/qgis-3.18.1+99unstable/src/core/qgsdataitem.cpp

Public Types

Public Member Functions

Static Public Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Member Enumeration Documentation

◆ LayerType

Constructor & Destructor Documentation

◆ QgsLayerItem()

Member Function Documentation

◆ comments()

◆ deleteLayer()

◆ equal()

◆ hasDragEnabled()

◆ iconDefault()

◆ iconForWkbType()

◆ iconLine()

◆ iconMesh()

◆ iconName()

◆ iconPoint()

◆ iconPointCloud()

◆ iconPolygon()

◆ iconRaster()

◆ iconTable()

◆ iconVectorTile()

◆ layerName()

◆ layerTypeAsString()

◆ mapLayerType()

◆ mimeUris()

◆ providerKey()

◆ supportedCrs()

◆ supportedFormats()

◆ typeFromMapLayer()

◆ uri()

Member Data Documentation

◆ mLayerType

◆ mSupportedCRS

◆ mSupportFormats

◆ mUri