QAbstractProxyModel¶
The QAbstractProxyModel class provides a base class for proxy item models that can do sorting, filtering or other data processing tasks. More…
Inherited by: QTransposeProxyModel, QSortFilterProxyModel, QIdentityProxyModel
Synopsis¶
Functions¶
def
sourceModel()
Virtual functions¶
def
mapFromSource(sourceIndex)def
mapSelectionFromSource(selection)def
mapSelectionToSource(selection)def
mapToSource(proxyIndex)def
setSourceModel(sourceModel)
Detailed Description¶
This class defines the standard interface that proxy models must use to be able to interoperate correctly with other model/view components. It is not supposed to be instantiated directly.
All standard proxy models are derived from the QAbstractProxyModel class. If you need to create a new proxy model class, it is usually better to subclass an existing class that provides the closest behavior to the one you want to provide.
Proxy models that filter or sort items of data from a source model should be created by using or subclassing QSortFilterProxyModel .
To subclass QAbstractProxyModel , you need to implement mapFromSource() and mapToSource() . The mapSelectionFromSource() and mapSelectionToSource() functions only need to be reimplemented if you need a behavior different from the default behavior.
Note
If the source model is deleted or no source model is specified, the proxy model operates on a empty placeholder model.
-
class
PySide6.QtCore.QAbstractProxyModel([parent=None])¶ - Parameters
parent –
PySide6.QtCore.QObject
Constructs a proxy model with the given parent.
-
PySide6.QtCore.QAbstractProxyModel.mapFromSource(sourceIndex)¶ - Parameters
sourceIndex –
PySide6.QtCore.QModelIndex- Return type
Reimplement this function to return the model index in the proxy model that corresponds to the sourceIndex from the source model.
See also
-
PySide6.QtCore.QAbstractProxyModel.mapSelectionFromSource(selection)¶ - Parameters
selection –
PySide6.QtCore.QItemSelection- Return type
Returns a proxy selection mapped from the specified sourceSelection.
Reimplement this method to map source selections to proxy selections.
-
PySide6.QtCore.QAbstractProxyModel.mapSelectionToSource(selection)¶ - Parameters
selection –
PySide6.QtCore.QItemSelection- Return type
Returns a source selection mapped from the specified proxySelection.
Reimplement this method to map proxy selections to source selections.
-
PySide6.QtCore.QAbstractProxyModel.mapToSource(proxyIndex)¶ - Parameters
proxyIndex –
PySide6.QtCore.QModelIndex- Return type
Reimplement this function to return the model index in the source model that corresponds to the proxyIndex in the proxy model.
See also
-
PySide6.QtCore.QAbstractProxyModel.setSourceModel(sourceModel)¶ - Parameters
sourceModel –
PySide6.QtCore.QAbstractItemModel
Sets the given sourceModel to be processed by the proxy model.
Subclasses should call beginResetModel() at the beginning of the method, disconnect from the old model, call this method, connect to the new model, and call endResetModel() .
See also
-
PySide6.QtCore.QAbstractProxyModel.sourceModel()¶ - Return type
Returns the model that contains the data that is available through the proxy model.
See also
© 2021 The Qt Company Ltd. Documentation contributions included herein are the copyrights of their respective owners. The documentation provided herein is licensed under the terms of the GNU Free Documentation License version 1.3 as published by the Free Software Foundation. Qt and respective logos are trademarks of The Qt Company Ltd. in Finland and/or other countries worldwide. All other trademarks are property of their respective owners.