QAbstractProxyModel Class▲
-
Header: QAbstractProxyModel
-
Since: Qt 4.1
-
qmake: QT += core
-
Inherits: QAbstractItemModel
-
Inherited By: QIdentityProxyModel and QSortFilterProxyModel
-
Group: QAbstractProxyModel is part of model-view
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.
If the source model is deleted or no source model is specified, the proxy model operates on a empty placeholder model.
See Also▲
Property Documentation▲
sourceModel : QAbstractItemModel*▲
This property holds the source model of this proxy model.
Access functions:
-
*sourceModel() const
-
virtual void setSourceModel( *sourceModel)
Notifier signal:
-
void sourceModelChanged()
This is a private signal. It can be used in signal connections but cannot be emitted by the user.
Member Function Documentation▲
[explicit] QAbstractProxyModel::QAbstractProxyModel(QObject *parent = nullptr)▲
Constructs a proxy model with the given parent.
[virtual] QAbstractProxyModel::~QAbstractProxyModel()▲
Destroys the proxy model.
[override virtual] QModelIndex QAbstractProxyModel::buddy(const QModelIndex &index) const▲
Reimplements: QAbstractItemModel::buddy(const QModelIndex &index) const.
[override virtual, since 5.4] bool QAbstractProxyModel::canDropMimeData(const QMimeData *data, Qt::DropAction action, int row, int column, const QModelIndex &parent) const▲
Reimplements: QAbstractItemModel::canDropMimeData(const QMimeData *data, Qt::DropAction action, int row, int column, const QModelIndex &parent) const.
This function was introduced in Qt 5.4.
[override virtual] bool QAbstractProxyModel::canFetchMore(const QModelIndex &parent) const▲
[override virtual] QVariant QAbstractProxyModel::data(const QModelIndex &proxyIndex, int role = Qt::DisplayRole) const▲
Reimplements: QAbstractItemModel::data(const QModelIndex &index, int role) const.
See Also▲
See also setData()
[override virtual, since 5.4] bool QAbstractProxyModel::dropMimeData(const QMimeData *data, Qt::DropAction action, int row, int column, const QModelIndex &parent)▲
Reimplements: QAbstractItemModel::dropMimeData(const QMimeData *data, Qt::DropAction action, int row, int column, const QModelIndex &parent).
This function was introduced in Qt 5.4.
[override virtual] void QAbstractProxyModel::fetchMore(const QModelIndex &parent)▲
Reimplements: QAbstractItemModel::fetchMore(const QModelIndex &parent).
[override virtual] Qt::ItemFlags QAbstractProxyModel::flags(const QModelIndex &index) const▲
Reimplements: QAbstractItemModel::flags(const QModelIndex &index) const.
[override virtual] bool QAbstractProxyModel::hasChildren(const QModelIndex &parent = QModelIndex()) const▲
[override virtual] QVariant QAbstractProxyModel::headerData(int section, Qt::Orientation orientation, int role = Qt::DisplayRole) const▲
Reimplements: QAbstractItemModel::headerData(int section, Qt::Orientation orientation, int role) const.
See Also▲
See also setHeaderData()
[override virtual] QMap<int, QVariant> QAbstractProxyModel::itemData(const QModelIndex &proxyIndex) const▲
Reimplements: QAbstractItemModel::itemData(const QModelIndex &index) const.
See Also▲
See also setItemData()
[pure virtual] QModelIndex QAbstractProxyModel::mapFromSource(const QModelIndex &sourceIndex) const▲
Reimplement this function to return the model index in the proxy model that corresponds to the sourceIndex from the source model.
See Also▲
See also mapToSource()
[virtual] QItemSelection QAbstractProxyModel::mapSelectionFromSource(const QItemSelection &sourceSelection) const▲
Returns a proxy selection mapped from the specified sourceSelection.
Reimplement this method to map source selections to proxy selections.
[virtual] QItemSelection QAbstractProxyModel::mapSelectionToSource(const QItemSelection &proxySelection) const▲
Returns a source selection mapped from the specified proxySelection.
Reimplement this method to map proxy selections to source selections.
[pure virtual] QModelIndex QAbstractProxyModel::mapToSource(const QModelIndex &proxyIndex) const▲
Reimplement this function to return the model index in the source model that corresponds to the proxyIndex in the proxy model.
See Also▲
See also mapFromSource()
[override virtual] QMimeData *QAbstractProxyModel::mimeData(const QModelIndexList &indexes) const▲
[override virtual] QStringList QAbstractProxyModel::mimeTypes() const▲
Reimplements: QAbstractItemModel::mimeTypes() const.
[protected] void QAbstractProxyModel::resetInternalData()▲
Clears the roleNames of this proxy model.
[override virtual] void QAbstractProxyModel::revert()▲
Reimplements: QAbstractItemModel::revert().
[override virtual] bool QAbstractProxyModel::setData(const QModelIndex &index, const QVariant &value, int role = Qt::EditRole)▲
Reimplements: QAbstractItemModel::setData(const QModelIndex &index, const QVariant &value, int role).
See Also▲
See also data()
[override virtual] bool QAbstractProxyModel::setHeaderData(int section, Qt::Orientation orientation, const QVariant &value, int role = Qt::EditRole)▲
Reimplements: QAbstractItemModel::setHeaderData(int section, Qt::Orientation orientation, const QVariant &value, int role).
See Also▲
See also headerData()
[override virtual] bool QAbstractProxyModel::setItemData(const QModelIndex &index, const QMap<int, QVariant> &roles)▲
Reimplements: QAbstractItemModel::setItemData(const QModelIndex &index, const QMap<int, QVariant> &roles).
See Also▲
See also itemData()
[virtual] void QAbstractProxyModel::setSourceModel(QAbstractItemModel *sourceModel)▲
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().
Setter function for property sourceModel.
See Also▲
See also sourceModel()
[override virtual] QModelIndex QAbstractProxyModel::sibling(int row, int column, const QModelIndex &idx) const▲
[override virtual] void QAbstractProxyModel::sort(int column, Qt::SortOrder order = Qt::AscendingOrder)▲
Reimplements: QAbstractItemModel::sort(int column, Qt::SortOrder order).
QAbstractItemModel *QAbstractProxyModel::sourceModel() const▲
Returns the model that contains the data that is available through the proxy model.
Getter function for property sourceModel.
See Also▲
See also setSourceModel()
[override virtual] QSize QAbstractProxyModel::span(const QModelIndex &index) const▲
Reimplements: QAbstractItemModel::span(const QModelIndex &index) const.
[override virtual] bool QAbstractProxyModel::submit()▲
Reimplements: QAbstractItemModel::submit().
[override virtual] Qt::DropActions QAbstractProxyModel::supportedDragActions() const▲
Reimplements: QAbstractItemModel::supportedDragActions() const.
[override virtual] Qt::DropActions QAbstractProxyModel::supportedDropActions() const▲
Reimplements: QAbstractItemModel::supportedDropActions() const.