qBittorrent/src/gui/transferlistmodel.h
Chocobo1 863c9f9876
Speed up lookup operation in TransferListModel
Previously lookup is O(n), add operation is O(n), remove operation is
O(n).
Now lookup is O(1), add operation is O(1), remove operation is O(n).
n is the number of torrents already recorded.
2019-08-19 11:33:14 +08:00

107 lines
3.6 KiB
C++

/*
* Bittorrent Client using Qt and libtorrent.
* Copyright (C) 2015 Vladimir Golovnev <glassez@yandex.ru>
* Copyright (C) 2010 Christophe Dumez <chris@qbittorrent.org>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* In addition, as a special exception, the copyright holders give permission to
* link this program with the OpenSSL project's "OpenSSL" library (or with
* modified versions of it that use the same license as the "OpenSSL" library),
* and distribute the linked executables. You must obey the GNU General Public
* License in all respects for all of the code used other than "OpenSSL". If you
* modify file(s), you may extend this exception to your version of the file(s),
* but you are not obligated to do so. If you do not wish to do so, delete this
* exception statement from your version.
*/
#ifndef TRANSFERLISTMODEL_H
#define TRANSFERLISTMODEL_H
#include <QAbstractListModel>
#include <QList>
namespace BitTorrent
{
class InfoHash;
class TorrentHandle;
}
class TransferListModel : public QAbstractListModel
{
Q_OBJECT
Q_DISABLE_COPY(TransferListModel)
public:
enum Column
{
TR_QUEUE_POSITION,
TR_NAME,
TR_SIZE,
TR_TOTAL_SIZE,
TR_PROGRESS,
TR_STATUS,
TR_SEEDS,
TR_PEERS,
TR_DLSPEED,
TR_UPSPEED,
TR_ETA,
TR_RATIO,
TR_CATEGORY,
TR_TAGS,
TR_ADD_DATE,
TR_SEED_DATE,
TR_TRACKER,
TR_DLLIMIT,
TR_UPLIMIT,
TR_AMOUNT_DOWNLOADED,
TR_AMOUNT_UPLOADED,
TR_AMOUNT_DOWNLOADED_SESSION,
TR_AMOUNT_UPLOADED_SESSION,
TR_AMOUNT_LEFT,
TR_TIME_ELAPSED,
TR_SAVE_PATH,
TR_COMPLETED,
TR_RATIO_LIMIT,
TR_SEEN_COMPLETE_DATE,
TR_LAST_ACTIVITY,
TR_AVAILABILITY,
NB_COLUMNS
};
explicit TransferListModel(QObject *parent = nullptr);
int rowCount(const QModelIndex &parent = {}) const override;
int columnCount(const QModelIndex &parent = {}) const override;
QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const override;
bool setData(const QModelIndex &index, const QVariant &value, int role) override;
QVariant headerData(int section, Qt::Orientation orientation, int role) const override;
Qt::ItemFlags flags(const QModelIndex &index) const override;
BitTorrent::TorrentHandle *torrentHandle(const QModelIndex &index) const;
private slots:
void addTorrent(BitTorrent::TorrentHandle *const torrent);
void handleTorrentAboutToBeRemoved(BitTorrent::TorrentHandle *const torrent);
void handleTorrentStatusUpdated(BitTorrent::TorrentHandle *const torrent);
void handleTorrentsUpdated(const QVector<BitTorrent::TorrentHandle *> &torrents);
private:
QList<BitTorrent::TorrentHandle *> m_torrentList; // maps row number to torrent handle
QHash<BitTorrent::TorrentHandle *, int> m_torrentMap; // maps torrent handle to row number
};
#endif // TRANSFERLISTMODEL_H