QGIS API Documentation  2.99.0-Master (dcec6bb)
Public Types | Public Member Functions | Static Public Member Functions | Protected Attributes | List of all members
QgsLayerItem Class Reference

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

#include <qgsdataitem.h>

Inheritance diagram for QgsLayerItem:
Inheritance graph

Public Types

enum  LayerType {
  NoType, Vector, Raster, Point,
  Line, Polygon, TableLayer, Database,
  Table, Plugin
- Public Types inherited from QgsDataItem
enum  Capability {
  NoCapabilities = 0, SetCrs = 1 << 0, Fertile = 1 << 1, Fast = 1 << 2,
  Collapse = 1 << 3
enum  State { NotPopulated, Populating, Populated }
enum  Type {
  Collection, Directory, Layer, Error,
  Favorites, Project

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 equal (const QgsDataItem *other) override
 Returns true if this item is equal to another item (by testing item type and path). More...
virtual bool hasDragEnabled () const override
 Returns true if the item may be dragged. More...
virtual QString layerName () const
QgsMapLayer::LayerType mapLayerType () const
 Returns QgsMapLayer::LayerType. More...
virtual QgsMimeDataUtils::Uri mimeUri () const override
 Return 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...
virtual ~QgsDataItem ()
virtual bool acceptDrop ()
 Returns whether the item accepts drag and dropped layers - e.g. More...
virtual QList< QAction * > actions ()
 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
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 handleDrop (const QMimeData *, Qt::DropAction)
 Attempts to process the mime data dropped on this item. More...
bool hasChildren ()
virtual QIcon icon ()
void moveToThread (QThread *targetThread)
 Move object and all its descendants to thread. More...
QString name () const
virtual QWidget * paramWidget ()
QgsDataItemparent () const
 Get item parent. More...
QString path () const
virtual QgsDataItemremoveChildItem (QgsDataItem *child)
 Removes a child item and returns it without deleting it. More...
int rowCount ()
virtual void setCapabilities (Capabilities capabilities)
 Sets the capabilities for the data item. More...
virtual 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)
void setParent (QgsDataItem *parent)
 Set item parent and connect / disconnect parent to / from item signals. More...
void setPath (const QString &path)
virtual void setState (State state)
 Set item state. More...
void setToolTip (const QString &msg)
State state () const
QString toolTip () const
Type type () const

Static Public Member Functions

static QIcon iconDefault ()
static QIcon iconLine ()
static QIcon iconPoint ()
static QIcon iconPolygon ()
static QIcon iconRaster ()
static QIcon iconTable ()
- 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
QgsDataItemmParent = nullptr
QString mPath
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 328 of file qgsdataitem.h.

Member Enumeration Documentation

◆ LayerType


Added in 2.10.

Definition at line 332 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 542 of file qgsdataitem.cpp.

Member Function Documentation

◆ comments()

virtual QString QgsLayerItem::comments ( ) const

Returns comments of the layer.

QGIS 2.12

Definition at line 380 of file qgsdataitem.h.

◆ equal()

bool QgsLayerItem::equal ( const QgsDataItem other)

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

Reimplemented from QgsDataItem.

Definition at line 584 of file qgsdataitem.cpp.

◆ hasDragEnabled()

virtual bool QgsLayerItem::hasDragEnabled ( ) const

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
QGIS 3.0

Reimplemented from QgsDataItem.

Definition at line 352 of file qgsdataitem.h.

◆ iconDefault()

QIcon QgsLayerItem::iconDefault ( )

Definition at line 73 of file qgsdataitem.cpp.

◆ iconLine()

QIcon QgsLayerItem::iconLine ( )

Definition at line 53 of file qgsdataitem.cpp.

◆ iconPoint()

QIcon QgsLayerItem::iconPoint ( )

Definition at line 48 of file qgsdataitem.cpp.

◆ iconPolygon()

QIcon QgsLayerItem::iconPolygon ( )

Definition at line 58 of file qgsdataitem.cpp.

◆ iconRaster()

QIcon QgsLayerItem::iconRaster ( )

Definition at line 68 of file qgsdataitem.cpp.

◆ iconTable()

QIcon QgsLayerItem::iconTable ( )

Definition at line 63 of file qgsdataitem.cpp.

◆ layerName()

virtual QString QgsLayerItem::layerName ( ) const
the layer name

Definition at line 404 of file qgsdataitem.h.

◆ mapLayerType()

QgsMapLayer::LayerType QgsLayerItem::mapLayerType ( ) const

Returns QgsMapLayer::LayerType.

Definition at line 575 of file qgsdataitem.cpp.

◆ mimeUri()

QgsMimeDataUtils::Uri QgsLayerItem::mimeUri ( ) const

Return 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
QGIS 3.0

Reimplemented from QgsDataItem.

Definition at line 599 of file qgsdataitem.cpp.

◆ providerKey()

QString QgsLayerItem::providerKey ( ) const

Returns provider key.

Definition at line 365 of file qgsdataitem.h.

◆ supportedCrs()

QStringList QgsLayerItem::supportedCrs ( ) const

Returns the supported CRS.

QGIS 2.8

Definition at line 370 of file qgsdataitem.h.

◆ supportedFormats()

QStringList QgsLayerItem::supportedFormats ( ) const

Returns the supported formats.

QGIS 2.8

Definition at line 375 of file qgsdataitem.h.

◆ uri()

QString QgsLayerItem::uri ( ) const

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

Definition at line 362 of file qgsdataitem.h.

Member Data Documentation

◆ mLayerType

LayerType QgsLayerItem::mLayerType

The layer type.

Definition at line 389 of file qgsdataitem.h.

◆ mProviderKey

QString QgsLayerItem::mProviderKey

The provider key.

Definition at line 385 of file qgsdataitem.h.

◆ mSupportedCRS

QStringList QgsLayerItem::mSupportedCRS

The list of supported CRS.

Definition at line 391 of file qgsdataitem.h.

◆ mSupportFormats

QStringList QgsLayerItem::mSupportFormats

The list of supported formats.

Definition at line 393 of file qgsdataitem.h.

◆ mUri

QString QgsLayerItem::mUri

The URI.

Definition at line 387 of file qgsdataitem.h.

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