diff options
Diffstat (limited to 'src/corelib/itemmodels/qabstractitemmodel.cpp')
| -rw-r--r-- | src/corelib/itemmodels/qabstractitemmodel.cpp | 24 |
1 files changed, 19 insertions, 5 deletions
diff --git a/src/corelib/itemmodels/qabstractitemmodel.cpp b/src/corelib/itemmodels/qabstractitemmodel.cpp index 77654158d1..9fc68711f6 100644 --- a/src/corelib/itemmodels/qabstractitemmodel.cpp +++ b/src/corelib/itemmodels/qabstractitemmodel.cpp @@ -1322,9 +1322,20 @@ void QAbstractItemModelPrivate::columnsRemoved(const QModelIndex &parent, \sa headerData(), setHeaderData(), dataChanged() */ + /*! - \fn void QAbstractItemModel::layoutAboutToBeChanged(const QList<QPersistentModelIndex> &parents = QList<QPersistentModelIndex>()) - \since 4.2 + \enum QAbstractItemModel::LayoutChangeHint + + This enum describes the way the model changes layout. + + \value NoLayoutChangeHint No hint is available. + \value VerticalSortHint Rows are being sorted. + \value HorizontalSortHint Columns are being sorted. +*/ + +/*! + \fn void QAbstractItemModel::layoutAboutToBeChanged(const QList<QPersistentModelIndex> &parents = QList<QPersistentModelIndex>(), QAbstractItemModel::LayoutChangeHint hint = QAbstractItemModel::NoLayoutChangeHint) + \since 5.0 This signal is emitted just before the layout of a model is changed. Components connected to this signal use it to adapt to changes in the @@ -1335,13 +1346,15 @@ void QAbstractItemModelPrivate::columnsRemoved(const QModelIndex &parent, The optional \a 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. + a change to the layout of the entire model. The order of elements in the \a parents list is not significant. The optional \a hint parameter is used + to give a hint about what is happening while the model is relayouting. \sa layoutChanged(), changePersistentIndex() */ /*! - \fn void QAbstractItemModel::layoutChanged(const QList<QPersistentModelIndex> &parents = QList<QPersistentModelIndex>()) + \fn void QAbstractItemModel::layoutChanged(const QList<QPersistentModelIndex> &parents = QList<QPersistentModelIndex>(), QAbstractItemModel::LayoutChangeHint hint = QAbstractItemModel::NoLayoutChangeHint) + \since 5.0 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 @@ -1355,7 +1368,8 @@ void QAbstractItemModelPrivate::columnsRemoved(const QModelIndex &parent, The optional \a 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. + a change to the layout of the entire model. The order of elements in the \a parents list is not significant. The optional \a hint parameter is used + to give a hint about what is happening while the model is relayouting. Subclasses should update any persistent model indexes before emitting layoutChanged(). In other words, when the structure changes: |