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Keep sub-sorting order (#15074)

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Fixes #15073
This commit is contained in:
Dmitry Khlestkov
2021-06-14 06:57:50 +03:00
committed by GitHub
parent ccb59fbad3
commit 2bd5aca3a4
2 changed files with 28 additions and 10 deletions
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30
src/gui/transferlistsortmodel.cpp
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@@ -96,10 +96,24 @@ namespace
TransferListSortModel::TransferListSortModel(QObject *parent)
: QSortFilterProxyModel {parent}
, m_subSortColumn {"TransferList/SubSortColumn", TransferListModel::TR_NAME, adjustSubSortColumn}
, m_subSortOrder {"TransferList/SubSortOrder", 0}
{
setSortRole(TransferListModel::UnderlyingDataRole);
}
void TransferListSortModel::sort(const int column, const Qt::SortOrder order)
{
if ((m_lastSortColumn != column) && (m_lastSortColumn != -1))
{
m_subSortColumn = m_lastSortColumn;
m_subSortOrder = m_lastSortOrder;
}
m_lastSortColumn = column;
m_lastSortOrder = ((order == Qt::AscendingOrder) ? 0 : 1);
QSortFilterProxyModel::sort(column, order);
}
void TransferListSortModel::setStatusFilter(TorrentFilter::Type filter)
{
if (m_filter.setType(filter))
@@ -219,16 +233,16 @@ bool TransferListSortModel::lessThan(const QModelIndex &left, const QModelIndex
{
Q_ASSERT(left.column() == right.column());
if (m_lastSortColumn != left.column())
{
if (m_lastSortColumn != -1)
m_subSortColumn = m_lastSortColumn;
m_lastSortColumn = left.column();
}
const int result = compare(left, right);
if (result == 0)
return compare(left.sibling(left.row(), m_subSortColumn), right.sibling(right.row(), m_subSortColumn)) < 0;
{
const int subResult = compare(left.sibling(left.row(), m_subSortColumn), right.sibling(right.row(), m_subSortColumn));
// Qt inverses lessThan() result when ordered descending.
// For sub-sorting we have to do it manually.
// When both are ordered descending subResult must be double-inversed, which is the same as no inversion.
const bool inverseSubResult = (m_lastSortOrder != m_subSortOrder); // exactly one is descending
return (inverseSubResult ? (subResult > 0) : (subResult < 0));
}
return result < 0;
}