diff options
Diffstat (limited to 'src/gui/itemviews/qitemselectionmodel.cpp')
| -rw-r--r-- | src/gui/itemviews/qitemselectionmodel.cpp | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/src/gui/itemviews/qitemselectionmodel.cpp b/src/gui/itemviews/qitemselectionmodel.cpp index dfebe03..2e4a602 100644 --- a/src/gui/itemviews/qitemselectionmodel.cpp +++ b/src/gui/itemviews/qitemselectionmodel.cpp @@ -599,7 +599,7 @@ void QItemSelectionModelPrivate::_q_rowsAboutToBeRemoved(const QModelIndex &pare while (itParent.isValid() && itParent.parent() != parent) itParent = itParent.parent(); - if (parent.isValid() && start <= itParent.row() && itParent.row() <= end) { + if (itParent.isValid() && start <= itParent.row() && itParent.row() <= end) { deselected.append(*it); it = ranges.erase(it); } else { @@ -730,13 +730,14 @@ void QItemSelectionModelPrivate::_q_layoutAboutToBeChanged() savedPersistentIndexes.clear(); savedPersistentCurrentIndexes.clear(); - // special case for when all indexes are selected + // optimisation for when all indexes are selected + // (only if there is lots of items (1000) because this is not entirely correct) if (ranges.isEmpty() && currentSelection.count() == 1) { QItemSelectionRange range = currentSelection.first(); QModelIndex parent = range.parent(); tableRowCount = model->rowCount(parent); tableColCount = model->columnCount(parent); - if (tableRowCount * tableColCount > 100 + if (tableRowCount * tableColCount > 1000 && range.top() == 0 && range.left() == 0 && range.bottom() == tableRowCount - 1 @@ -1587,7 +1588,8 @@ void QItemSelectionModel::emitSelectionChanged(const QItemSelection &newSelectio } } - emit selectionChanged(selected, deselected); + if (!selected.isEmpty() || !deselected.isEmpty()) + emit selectionChanged(selected, deselected); } #ifndef QT_NO_DEBUG_STREAM |