A collection of field items with some internal logic to retrieve the fields and a the vector layer instance from a connection URI, the schema and the table name. More...
#include <qgsdataitem.h>
Inheritance diagram for QgsFieldsItem:
Public Member Functions | |
| QgsFieldsItem (QgsDataItem *parent, const QString &path, const QString &connectionUri, const QString &providerKey, const QString &schema, const QString &tableName) | |
| Constructor for QgsFieldsItem, with the specified parent item. More... | |
| ~QgsFieldsItem () override | |
| QString | connectionUri () const |
| Returns the connection URI. More... | |
| QVector< QgsDataItem * > | createChildren () override |
| Create children. More... | |
| QIcon | icon () override |
| QgsVectorLayer * | layer () |
| Creates and returns a (possibly NULL) layer from the connection URI and schema/table information. More... | |
| QString | schema () const |
| Returns the schema name. More... | |
| QString | tableName () const |
| Returns the table name. More... | |
| QgsAbstractDatabaseProviderConnection::TableProperty * | tableProperty () const |
| Returns the (possibly NULL) properties of the table this fields belong to. 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 void | deleteChildItem (QgsDataItem *child) |
| Removes and deletes a child item, emitting relevant signals to the model. More... | |
| virtual bool | equal (const QgsDataItem *other) |
Returns true if this item is equal to another item (by testing item type and path). 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 bool | hasDragEnabled () const |
Returns true if the item may be dragged. More... | |
| 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 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 |
Additional Inherited Members | |
| 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 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) |
| 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 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... | |
| 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 |
Detailed Description
A collection of field items with some internal logic to retrieve the fields and a the vector layer instance from a connection URI, the schema and the table name.
- Since
- QGIS 3.16
Definition at line 976 of file qgsdataitem.h.
Constructor & Destructor Documentation
◆ QgsFieldsItem()
| QgsFieldsItem::QgsFieldsItem | ( | QgsDataItem * | parent, |
| const QString & | path, | ||
| const QString & | connectionUri, | ||
| const QString & | providerKey, | ||
| const QString & | schema, | ||
| const QString & | tableName | ||
| ) |
Constructor for QgsFieldsItem, with the specified parent item.
The path argument gives the item path in the browser tree. The path string can take any form, but QgsDataItem items pointing to different logical locations should always use a different item path. The \connectionUri argument is the connection part of the layer URI that it is used internally to create a connection and retrieve fields information. The providerKey string can be used to specify the key for the QgsDataItemProvider that created this item. The schema and tableName are used to retrieve the layer and field information from the connectionUri.
Definition at line 115 of file qgsdataitem.cpp.
◆ ~QgsFieldsItem()
|
override |
Definition at line 142 of file qgsdataitem.cpp.
Member Function Documentation
◆ connectionUri()
| QString QgsFieldsItem::connectionUri | ( | ) | const |
Returns the connection URI.
Definition at line 181 of file qgsdataitem.cpp.
◆ createChildren()
|
overridevirtual |
Create children.
Children are not expected to have parent set.
- Warning
- This method MUST BE THREAD SAFE.
Reimplemented from QgsDataItem.
Definition at line 147 of file qgsdataitem.cpp.
◆ icon()
|
overridevirtual |
Reimplemented from QgsDataItem.
Definition at line 176 of file qgsdataitem.cpp.
◆ layer()
| QgsVectorLayer * QgsFieldsItem::layer | ( | ) |
Creates and returns a (possibly NULL) layer from the connection URI and schema/table information.
Definition at line 186 of file qgsdataitem.cpp.
◆ schema()
| QString QgsFieldsItem::schema | ( | ) | const |
Returns the schema name.
Definition at line 228 of file qgsdataitem.cpp.
◆ tableName()
| QString QgsFieldsItem::tableName | ( | ) | const |
Returns the table name.
Definition at line 223 of file qgsdataitem.cpp.
◆ tableProperty()
| QgsAbstractDatabaseProviderConnection::TableProperty * QgsFieldsItem::tableProperty | ( | ) | const |
Returns the (possibly NULL) properties of the table this fields belong to.
- Since
- QGIS 3.16
Definition at line 218 of file qgsdataitem.cpp.
The documentation for this class was generated from the following files:
- /build/qgis-3.16.0+99unstable/src/core/qgsdataitem.h
- /build/qgis-3.16.0+99unstable/src/core/qgsdataitem.cpp
