diff options
Diffstat (limited to 'src/widgets/itemviews/qtablewidget.cpp')
-rw-r--r-- | src/widgets/itemviews/qtablewidget.cpp | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/src/widgets/itemviews/qtablewidget.cpp b/src/widgets/itemviews/qtablewidget.cpp index b2d4abe5ac..f0c7ac0d32 100644 --- a/src/widgets/itemviews/qtablewidget.cpp +++ b/src/widgets/itemviews/qtablewidget.cpp @@ -507,11 +507,15 @@ void QTableModel::sort(int column, Qt::SortOrder order) QVector<QTableWidgetItem*> sorted_table(tableItems.count()); QModelIndexList from; QModelIndexList to; - for (int i = 0; i < rowCount(); ++i) { + const int numRows = rowCount(); + const int numColumns = columnCount(); + from.reserve(numRows * numColumns); + to.reserve(numRows * numColumns); + for (int i = 0; i < numRows; ++i) { int r = (i < sortable.count() ? sortable.at(i).second : unsortable.at(i - sortable.count())); - for (int c = 0; c < columnCount(); ++c) { + for (int c = 0; c < numColumns; ++c) { sorted_table[tableIndex(i, c)] = item(r, c); from.append(createIndex(r, c)); to.append(createIndex(i, c)); |