QAbstractProxyModel露

PyQt5.QtCore.QAbstractProxyModel

Inherited by QIdentityProxyModel, QSortFilterProxyModel, QTransposeProxyModel.

Description露

The QAbstractProxyModel class provides a base class for proxy item models that can do sorting, filtering or other data processing tasks.

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.

Methods露

__init__(parent: QObject = None): Constructs a proxy model with the given parent.

buddy(QModelIndex) → QModelIndex: TODO

canDropMimeData(QMimeData, DropAction, int, int, QModelIndex) → bool: TODO

canFetchMore(QModelIndex) → bool: TODO

data(QModelIndex, role: int = DisplayRole) → Any: TODO

dropMimeData(QMimeData, DropAction, int, int, QModelIndex) → bool: TODO

fetchMore(QModelIndex): TODO

flags(QModelIndex) → ItemFlags: TODO

hasChildren(parent: QModelIndex = QModelIndex()) → bool: TODO

headerData(int, Orientation, role: int = DisplayRole) → Any: TODO

itemData(QModelIndex) → Dict[int, Any]: TODO

mapFromSource(QModelIndex) → QModelIndex: TODO

mapSelectionFromSource(QItemSelection) → QItemSelection

Returns a proxy selection mapped from the specified sourceSelection.

Reimplement this method to map source selections to proxy selections.

mapSelectionToSource(QItemSelection) → QItemSelection

Returns a source selection mapped from the specified proxySelection.

Reimplement this method to map proxy selections to source selections.

mapToSource(QModelIndex) → QModelIndex: TODO

mimeData(Iterable[QModelIndex]) → QMimeData: TODO

mimeTypes() → List[str]: TODO

resetInternalData(): Clears the roleNames of this proxy model.

revert(): TODO

setData(QModelIndex, Any, role: int = EditRole) → bool: TODO

setHeaderData(int, Orientation, Any, role: int = EditRole) → bool: TODO

setItemData(QModelIndex, Dict[int, Any]) → bool: TODO

setSourceModel(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().

Signals露

sourceModelChanged(): TODO