diff options
| -rw-r--r-- | src/corelib/kernel/qabstractitemmodel.cpp | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/src/corelib/kernel/qabstractitemmodel.cpp b/src/corelib/kernel/qabstractitemmodel.cpp index 8761ec1..17af60d 100644 --- a/src/corelib/kernel/qabstractitemmodel.cpp +++ b/src/corelib/kernel/qabstractitemmodel.cpp @@ -2189,6 +2189,9 @@ bool QAbstractItemModel::decodeData(int row, int column, const QModelIndex &pare This appends the two new rows as rows 4 and 5. \endtable + \note This function emits the rowsAboutToBeInserted() signal which + connected views (or proxies) must handle before the data is inserted. + Otherwise, the views may end up in an invalid state. \sa endInsertRows() */ void QAbstractItemModel::beginInsertRows(const QModelIndex &parent, int first, int last) @@ -2239,6 +2242,10 @@ void QAbstractItemModel::endInsertRows() \snippet doc/src/snippets/code/src_corelib_kernel_qabstractitemmodel.cpp 2 \endtable + \note This function emits the rowsAboutToBeRemoved() signal which connected + views (or proxies) must handle before the data is removed. Otherwise, the + views may end up in an invalid state. + \sa endRemoveRows() */ void QAbstractItemModel::beginRemoveRows(const QModelIndex &parent, int first, int last) @@ -2302,6 +2309,10 @@ void QAbstractItemModel::endRemoveRows() This appends the two new columns as columns 6, 7, and 8. \endtable + \note This function emits the columnsAboutToBeInserted() signal which + connected views (or proxies) must handle before the data is inserted. + Otherwise, the views may end up in an invalid state. + \sa endInsertColumns() */ void QAbstractItemModel::beginInsertColumns(const QModelIndex &parent, int first, int last) @@ -2353,6 +2364,10 @@ void QAbstractItemModel::endInsertColumns() \snippet doc/src/snippets/code/src_corelib_kernel_qabstractitemmodel.cpp 5 \endtable + \note This function emits the columnsAboutToBeRemoved() signal which + connected views (or proxies) must handle before the data is removed. + Otherwise, the views may end up in an invalid state. + \sa endRemoveColumns() */ void QAbstractItemModel::beginRemoveColumns(const QModelIndex &parent, int first, int last) |