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 }

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 }

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 bool	deleteLayer ()
	Delete this layer item. 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::Uri	mimeUri () const override
	Returns mime URI for the data item. 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)
	Create new data item. More...

	~QgsDataItem () override

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

bool	hasChildren ()

virtual QIcon	icon ()

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

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

QString	path () const

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

virtual 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	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	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	iconPolygon ()

static QIcon	iconRaster ()

static QIcon	iconTable ()

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...

QString	mProviderKey
	The provider key. 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

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 ()
	Refresh connections: update GUI and emit signal. More...

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

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

void	connectionsChanged ()
	Emitted when the provider's connections of the child items have changed This signal is normally forwarded to the app in order to refresh the connection item in the provider dialogs and to refresh the connection items in the other open browsers. 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 436 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.

Definition at line 441 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 610 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 501 of file qgsdataitem.h.

◆ deleteLayer()

bool QgsLayerItem::deleteLayer ( )

virtual

Delete this layer item.

Definition at line 714 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 719 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 mimeUri() that will be used to pass data.

See also: mimeUri()

Since: QGIS 3.0

Reimplemented from QgsDataItem.

Definition at line 464 of file qgsdataitem.h.

◆ iconDefault()

QIcon QgsLayerItem::iconDefault ( )

static

Definition at line 82 of file qgsdataitem.cpp.

◆ iconLine()

QIcon QgsLayerItem::iconLine ( )

static

Definition at line 57 of file qgsdataitem.cpp.

◆ iconMesh()

QIcon QgsLayerItem::iconMesh ( )

static

Returns icon for mesh layer type.

Definition at line 77 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 689 of file qgsdataitem.cpp.

◆ iconPoint()

QIcon QgsLayerItem::iconPoint ( )

static

Definition at line 52 of file qgsdataitem.cpp.

◆ iconPolygon()

QIcon QgsLayerItem::iconPolygon ( )

static

Definition at line 62 of file qgsdataitem.cpp.

◆ iconRaster()

QIcon QgsLayerItem::iconRaster ( )

static

Definition at line 72 of file qgsdataitem.cpp.

◆ iconTable()

QIcon QgsLayerItem::iconTable ( )

static

Definition at line 67 of file qgsdataitem.cpp.

◆ layerName()

virtual QString QgsLayerItem::layerName ( ) const

inlinevirtual

Returns: the layer name

Definition at line 542 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 683 of file qgsdataitem.cpp.

◆ mapLayerType()

QgsMapLayerType QgsLayerItem::mapLayerType ( ) const

Returns QgsMapLayerType.

Definition at line 619 of file qgsdataitem.cpp.

◆ mimeUri()

QgsMimeDataUtils::Uri QgsLayerItem::mimeUri ( ) const

overridevirtual

Returns mime URI for the data item.

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

See also: hasDragEnabled()

Since: QGIS 3.0

Reimplemented from QgsDataItem.

Definition at line 734 of file qgsdataitem.cpp.

◆ providerKey()

QString QgsLayerItem::providerKey ( ) const

inline

Returns provider key.

Definition at line 483 of file qgsdataitem.h.

◆ supportedCrs()

QStringList QgsLayerItem::supportedCrs ( ) const

inline

Returns the supported CRS.

Since: QGIS 2.8

Definition at line 489 of file qgsdataitem.h.

◆ supportedFormats()

QStringList QgsLayerItem::supportedFormats ( ) const

inline

Returns the supported formats.

Since: QGIS 2.8

Definition at line 495 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 646 of file qgsdataitem.cpp.

◆ uri()

QString QgsLayerItem::uri ( ) const

inline

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

Definition at line 480 of file qgsdataitem.h.

Member Data Documentation

◆ mLayerType

LayerType QgsLayerItem::mLayerType

protected

The layer type.

Definition at line 525 of file qgsdataitem.h.

◆ mProviderKey

QString QgsLayerItem::mProviderKey

protected

The provider key.

Definition at line 521 of file qgsdataitem.h.

◆ mSupportedCRS

QStringList QgsLayerItem::mSupportedCRS

protected

The list of supported CRS.

Definition at line 527 of file qgsdataitem.h.

◆ mSupportFormats

QStringList QgsLayerItem::mSupportFormats

protected

The list of supported formats.

Definition at line 529 of file qgsdataitem.h.

◆ mUri

QString QgsLayerItem::mUri

protected

The URI.

Definition at line 523 of file qgsdataitem.h.

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

/tmp/buildd/qgis-3.8.0+99unstable/src/core/qgsdataitem.h
/tmp/buildd/qgis-3.8.0+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()

◆ iconLine()

◆ iconMesh()

◆ iconName()

◆ iconPoint()

◆ iconPolygon()

◆ iconRaster()

◆ iconTable()

◆ layerName()

◆ layerTypeAsString()

◆ mapLayerType()

◆ mimeUri()

◆ providerKey()

◆ supportedCrs()

◆ supportedFormats()

◆ typeFromMapLayer()

◆ uri()

Member Data Documentation

◆ mLayerType

◆ mProviderKey

◆ mSupportedCRS

◆ mSupportFormats

◆ mUri