diff options
Diffstat (limited to 'src/corelib/itemmodels/qsortfilterproxymodel.cpp')
| -rw-r--r-- | src/corelib/itemmodels/qsortfilterproxymodel.cpp | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/src/corelib/itemmodels/qsortfilterproxymodel.cpp b/src/corelib/itemmodels/qsortfilterproxymodel.cpp index 922d0f1622..15798d5293 100644 --- a/src/corelib/itemmodels/qsortfilterproxymodel.cpp +++ b/src/corelib/itemmodels/qsortfilterproxymodel.cpp @@ -1011,6 +1011,7 @@ QModelIndexPairList QSortFilterProxyModelPrivate::store_persistent_indexes() { Q_Q(QSortFilterProxyModel); QModelIndexPairList source_indexes; + source_indexes.reserve(persistent.indexes.count()); foreach (QPersistentModelIndexData *data, persistent.indexes) { QModelIndex proxy_index = data->index; QModelIndex source_index = q->mapToSource(proxy_index); @@ -1030,7 +1031,10 @@ void QSortFilterProxyModelPrivate::update_persistent_indexes( { Q_Q(QSortFilterProxyModel); QModelIndexList from, to; - for (int i = 0; i < source_indexes.count(); ++i) { + const int numSourceIndexes = source_indexes.count(); + from.reserve(numSourceIndexes); + to.reserve(numSourceIndexes); + for (int i = 0; i < numSourceIndexes; ++i) { QModelIndex source_index = source_indexes.at(i).second; QModelIndex old_proxy_index = source_indexes.at(i).first; create_mapping(source_index.parent()); @@ -2013,7 +2017,9 @@ QMimeData *QSortFilterProxyModel::mimeData(const QModelIndexList &indexes) const { Q_D(const QSortFilterProxyModel); QModelIndexList source_indexes; - for (int i = 0; i < indexes.count(); ++i) + const int numIndexes = indexes.count(); + source_indexes.reserve(numIndexes); + for (int i = 0; i < numIndexes; ++i) source_indexes << mapToSource(indexes.at(i)); return d->model->mimeData(source_indexes); } |