diff options
| author | Sérgio Martins <sergio.martins@kdab.com> | 2015-06-22 22:12:27 +0100 |
|---|---|---|
| committer | Sérgio Martins <sergio.martins@kdab.com> | 2015-06-23 15:35:59 +0000 |
| commit | fece7cdb5daed826ab074b3210327dcfd7ab0e90 (patch) | |
| tree | 05b99df28e5fb65a81397a9464ad977027559322 /src/widgets/itemviews/qtableview.cpp | |
| parent | a4d3af961445995337c279e71c861afc213c06f3 (diff) | |
widgets: Use QList::reserve(), reduces reallocations.
Change-Id: I49cc03f365c77f142f62c8e77505ec09723a44d9
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
Diffstat (limited to 'src/widgets/itemviews/qtableview.cpp')
| -rw-r--r-- | src/widgets/itemviews/qtableview.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/widgets/itemviews/qtableview.cpp b/src/widgets/itemviews/qtableview.cpp index ae31387faf..238cbf3bcd 100644 --- a/src/widgets/itemviews/qtableview.cpp +++ b/src/widgets/itemviews/qtableview.cpp @@ -1884,6 +1884,7 @@ void QTableView::setSelection(const QRect &rect, QItemSelectionModel::SelectionF break; } } while (expanded); + selection.reserve((right - left + 1) * (bottom - top + 1)); for (int horizontal = left; horizontal <= right; ++horizontal) { int column = d->logicalColumn(horizontal); for (int vertical = top; vertical <= bottom; ++vertical) { @@ -1897,6 +1898,7 @@ void QTableView::setSelection(const QRect &rect, QItemSelectionModel::SelectionF int left = d->visualColumn(tl.column()); int bottom = d->visualRow(br.row()); int right = d->visualColumn(br.column()); + selection.reserve((right - left + 1) * (bottom - top + 1)); for (int horizontal = left; horizontal <= right; ++horizontal) { int column = d->logicalColumn(horizontal); for (int vertical = top; vertical <= bottom; ++vertical) { @@ -1908,6 +1910,7 @@ void QTableView::setSelection(const QRect &rect, QItemSelectionModel::SelectionF } else if (horizontalMoved) { int left = d->visualColumn(tl.column()); int right = d->visualColumn(br.column()); + selection.reserve(right - left + 1); for (int visual = left; visual <= right; ++visual) { int column = d->logicalColumn(visual); QModelIndex topLeft = d->model->index(tl.row(), column, d->root); @@ -1917,6 +1920,7 @@ void QTableView::setSelection(const QRect &rect, QItemSelectionModel::SelectionF } else if (verticalMoved) { int top = d->visualRow(tl.row()); int bottom = d->visualRow(br.row()); + selection.reserve(bottom - top + 1); for (int visual = top; visual <= bottom; ++visual) { int row = d->logicalRow(visual); QModelIndex topLeft = d->model->index(row, tl.column(), d->root); |