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Better model selection, much faster

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This commit is contained in:
Klaus Basan
2017-01-25 04:13:17 +01:00
committed by Mathew Sutcliffe
parent 74a4570a40
commit 1522c8175e
1 changed files with 7 additions and 5 deletions
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12
src/blackgui/views/viewbase.cpp
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@@ -418,15 +418,17 @@ namespace BlackGui
void CViewBaseNonTemplate::selectRows(const QSet<int> &rows)
{
// Multi row selection only work in MultiSelection
if (!this->selectionModel()) { return; }
// multiple times faster than multiple than this->selectRow()
this->clearSelection();
const SelectionMode m = this->selectionMode();
this->setSelectionMode(MultiSelection);
QItemSelection selectedItems;
const int columns = this->model()->columnCount() - 1;
for (int r : rows)
{
this->selectRow(r);
selectedItems.select(this->model()->index(r, 0), this->model()->index(r, columns));
}
this->setSelectionMode(m);
this->selectionModel()->select(selectedItems, QItemSelectionModel::Select);
}
int CViewBaseNonTemplate::selectedRowCount() const