diff options
Diffstat (limited to 'src/corelib/kernel/qabstractitemmodel.cpp')
| -rw-r--r-- | src/corelib/kernel/qabstractitemmodel.cpp | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/src/corelib/kernel/qabstractitemmodel.cpp b/src/corelib/kernel/qabstractitemmodel.cpp index fbeb59a553..cbbb20a8c9 100644 --- a/src/corelib/kernel/qabstractitemmodel.cpp +++ b/src/corelib/kernel/qabstractitemmodel.cpp @@ -1306,7 +1306,7 @@ void QAbstractItemModelPrivate::columnsRemoved(const QModelIndex &parent, */ /*! - \fn void QAbstractItemModel::layoutAboutToBeChanged() + \fn void QAbstractItemModel::layoutAboutToBeChanged(const QList<QPersistentModelIndex> &parents = QList<QPersistentModelIndex>()) \since 4.2 This signal is emitted just before the layout of a model is changed. @@ -1316,11 +1316,15 @@ void QAbstractItemModelPrivate::columnsRemoved(const QModelIndex &parent, Subclasses should update any persistent model indexes after emitting layoutAboutToBeChanged(). + The optional @p parents parameter is used to give a more specific notification + about what parts of the layout of the model are changing. An empty list indicates + a change to the layout of the entire model. + \sa layoutChanged(), changePersistentIndex() */ /*! - \fn void QAbstractItemModel::layoutChanged() + \fn void QAbstractItemModel::layoutChanged(const QList<QPersistentModelIndex> &parents = QList<QPersistentModelIndex>()) This signal is emitted whenever the layout of items exposed by the model has changed; for example, when the model has been sorted. When this signal @@ -1332,6 +1336,10 @@ void QAbstractItemModelPrivate::columnsRemoved(const QModelIndex &parent, altering the structure of the data you expose to views, and emit layoutChanged() after changing the layout. + The optional @p parents parameter is used to give a more specific notification + about what parts of the layout of the model are changing. An empty list indicates + a change to the layout of the entire model. + Subclasses should update any persistent model indexes before emitting layoutChanged(). In other words, when the structure changes: |