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Use stable sorting in transfer list

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Chocobo1 2021-02-04 14:22:16 +08:00
parent 04275e7d5d
commit ab0e1ec6e8
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2 changed files with 54 additions and 142 deletions
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195
src/gui/transferlistsortmodel.cpp
View file

@ -28,15 +28,31 @@
#include "transferlistsortmodel.h"
#include <type_traits>
#include <QDateTime>
#include "base/bittorrent/infohash.h"
#include "base/bittorrent/torrent.h"
#include "base/global.h"
#include "base/types.h"
#include "base/utils/string.h"
#include "transferlistmodel.h"
namespace
{
template <typename T>
bool customLessThan(const T left, const T right)
{
static_assert(std::is_arithmetic_v<T>);
const bool isLeftValid = (left >= 0);
const bool isRightValid = (right >= 0);
if (isLeftValid && isRightValid)
return left < right;
return isLeftValid;
}
}
TransferListSortModel::TransferListSortModel(QObject *parent)
: QSortFilterProxyModel {parent}
{
@ -86,27 +102,9 @@ void TransferListSortModel::disableTrackerFilter()
}
bool TransferListSortModel::lessThan(const QModelIndex &left, const QModelIndex &right) const
{
return lessThan_impl(left, right);
}
bool TransferListSortModel::lessThan_impl(const QModelIndex &left, const QModelIndex &right) const
{
Q_ASSERT(left.column() == right.column());
const auto invokeLessThanForColumn = [this, &left, &right](const int column) -> bool
{
return lessThan_impl(left.sibling(left.row(), column), right.sibling(right.row(), column));
};
const auto hashLessThan = [this, &left, &right]() -> bool
{
const TransferListModel *model = qobject_cast<TransferListModel *>(sourceModel());
const BitTorrent::InfoHash hashL = model->torrentHandle(left)->hash();
const BitTorrent::InfoHash hashR = model->torrentHandle(right)->hash();
return hashL < hashR;
};
const int sortColumn = left.column();
const QVariant leftValue = left.data(TransferListModel::UnderlyingDataRole);
const QVariant rightValue = right.data(TransferListModel::UnderlyingDataRole);
@ -114,63 +112,48 @@ bool TransferListSortModel::lessThan_impl(const QModelIndex &left, const QModelI
switch (sortColumn)
{
case TransferListModel::TR_CATEGORY:
case TransferListModel::TR_TAGS:
case TransferListModel::TR_NAME:
if (!leftValue.isValid() || !rightValue.isValid() || (leftValue == rightValue))
return invokeLessThanForColumn(TransferListModel::TR_QUEUE_POSITION);
return (Utils::String::naturalCompare(leftValue.toString(), rightValue.toString(), Qt::CaseInsensitive) < 0);
case TransferListModel::TR_SAVE_PATH:
case TransferListModel::TR_TAGS:
case TransferListModel::TR_TRACKER:
return Utils::String::naturalCompare(leftValue.toString(), rightValue.toString(), Qt::CaseInsensitive) < 0;
case TransferListModel::TR_AMOUNT_DOWNLOADED:
case TransferListModel::TR_AMOUNT_DOWNLOADED_SESSION:
case TransferListModel::TR_AMOUNT_LEFT:
case TransferListModel::TR_AMOUNT_UPLOADED:
case TransferListModel::TR_AMOUNT_UPLOADED_SESSION:
case TransferListModel::TR_COMPLETED:
case TransferListModel::TR_ETA:
case TransferListModel::TR_LAST_ACTIVITY:
case TransferListModel::TR_SIZE:
case TransferListModel::TR_TIME_ELAPSED:
case TransferListModel::TR_TOTAL_SIZE:
return customLessThan(leftValue.toLongLong(), rightValue.toLongLong());
case TransferListModel::TR_AVAILABILITY:
case TransferListModel::TR_PROGRESS:
case TransferListModel::TR_RATIO:
case TransferListModel::TR_RATIO_LIMIT:
return customLessThan(leftValue.toReal(), rightValue.toReal());
case TransferListModel::TR_STATUS:
{
const auto stateL = leftValue.value<BitTorrent::TorrentState>();
const auto stateR = rightValue.value<BitTorrent::TorrentState>();
if (stateL != stateR)
return stateL < stateR;
return invokeLessThanForColumn(TransferListModel::TR_QUEUE_POSITION);
}
return leftValue.value<BitTorrent::TorrentState>() < rightValue.value<BitTorrent::TorrentState>();
case TransferListModel::TR_ADD_DATE:
case TransferListModel::TR_SEED_DATE:
case TransferListModel::TR_SEEN_COMPLETE_DATE:
{
const auto dateL = leftValue.toDateTime();
const auto dateR = rightValue.toDateTime();
if (dateL.isValid() && dateR.isValid())
{
if (dateL != dateR)
return dateL < dateR;
}
else if (dateL.isValid())
{
return true;
}
else if (dateR.isValid())
{
return false;
}
return hashLessThan();
}
return leftValue.toDateTime() < rightValue.toDateTime();
case TransferListModel::TR_DLLIMIT:
case TransferListModel::TR_DLSPEED:
case TransferListModel::TR_QUEUE_POSITION:
{
const auto positionL = leftValue.toInt();
const auto positionR = rightValue.toInt();
case TransferListModel::TR_UPLIMIT:
case TransferListModel::TR_UPSPEED:
return customLessThan(leftValue.toInt(), rightValue.toInt());
if ((positionL > 0) || (positionR > 0))
{
if ((positionL > 0) && (positionR > 0))
return positionL < positionR;
return positionL != 0;
}
return invokeLessThanForColumn(TransferListModel::TR_SEED_DATE);
}
case TransferListModel::TR_SEEDS:
case TransferListModel::TR_PEERS:
case TransferListModel::TR_SEEDS:
{
// Active peers/seeds take precedence over total peers/seeds
const auto activeL = leftValue.toInt();
@ -180,85 +163,15 @@ bool TransferListSortModel::lessThan_impl(const QModelIndex &left, const QModelI
const auto totalL = left.data(TransferListModel::AdditionalUnderlyingDataRole).toInt();
const auto totalR = right.data(TransferListModel::AdditionalUnderlyingDataRole).toInt();
if (totalL != totalR)
return totalL < totalR;
return invokeLessThanForColumn(TransferListModel::TR_QUEUE_POSITION);
return totalL < totalR;
}
case TransferListModel::TR_ETA:
{
// Sorting rules prioritized.
// 1. Active torrents at the top
// 2. Seeding torrents at the bottom
// 3. Torrents with invalid ETAs at the bottom
const TransferListModel *model = qobject_cast<TransferListModel *>(sourceModel());
// From QSortFilterProxyModel::lessThan() documentation:
// "Note: The indices passed in correspond to the source model"
const bool isActiveL = TorrentFilter::ActiveTorrent.match(model->torrentHandle(left));
const bool isActiveR = TorrentFilter::ActiveTorrent.match(model->torrentHandle(right));
if (isActiveL != isActiveR)
return isActiveL;
const auto queuePosL = left.sibling(left.row(), TransferListModel::TR_QUEUE_POSITION)
.data(TransferListModel::UnderlyingDataRole).toInt();
const auto queuePosR = right.sibling(right.row(), TransferListModel::TR_QUEUE_POSITION)
.data(TransferListModel::UnderlyingDataRole).toInt();
const bool isSeedingL = (queuePosL < 0);
const bool isSeedingR = (queuePosR < 0);
if (isSeedingL != isSeedingR)
{
const bool isAscendingOrder = (sortOrder() == Qt::AscendingOrder);
if (isSeedingL)
return !isAscendingOrder;
return isAscendingOrder;
}
const auto etaL = leftValue.toLongLong();
const auto etaR = rightValue.toLongLong();
const bool isInvalidL = ((etaL < 0) || (etaL >= MAX_ETA));
const bool isInvalidR = ((etaR < 0) || (etaR >= MAX_ETA));
if (isInvalidL && isInvalidR)
{
if (isSeedingL) // Both seeding
return invokeLessThanForColumn(TransferListModel::TR_SEED_DATE);
return (queuePosL < queuePosR);
}
if (!isInvalidL && !isInvalidR)
return (etaL < etaR);
return !isInvalidL;
}
case TransferListModel::TR_LAST_ACTIVITY:
{
const auto lastActivityL = leftValue.toLongLong();
const auto lastActivityR = rightValue.toLongLong();
if (lastActivityL < 0) return false;
if (lastActivityR < 0) return true;
return lastActivityL < lastActivityR;
}
case TransferListModel::TR_RATIO_LIMIT:
{
const auto ratioL = leftValue.toReal();
const auto ratioR = rightValue.toReal();
if (ratioL < 0) return false;
if (ratioR < 0) return true;
return ratioL < ratioR;
}
default:
Q_ASSERT_X(false, Q_FUNC_INFO, "Missing comparsion case");
break;
}
return (leftValue != rightValue)
? QSortFilterProxyModel::lessThan(left, right)
: invokeLessThanForColumn(TransferListModel::TR_QUEUE_POSITION);
return false;
}
bool TransferListSortModel::filterAcceptsRow(const int sourceRow, const QModelIndex &sourceParent) const

1
src/gui/transferlistsortmodel.h
View file

@ -56,7 +56,6 @@ private:
bool lessThan(const QModelIndex &left, const QModelIndex &right) const override;
bool filterAcceptsRow(int sourceRow, const QModelIndex &sourceParent) const override;
bool matchFilter(int sourceRow, const QModelIndex &sourceParent) const;
bool lessThan_impl(const QModelIndex &left, const QModelIndex &right) const;
TorrentFilter m_filter;
};