159 lines
3.7 KiB
C++
159 lines
3.7 KiB
C++
/*
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* This file Copyright (C) 2009-2015 Mnemosyne LLC
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*
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* It may be used under the GNU GPL versions 2 or 3
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* or any future license endorsed by Mnemosyne LLC.
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*
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*/
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#include <algorithm> // std::sort()
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#include <QUrl>
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#include "Application.h" // Application
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#include "TorrentModel.h"
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#include "TrackerModel.h"
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int TrackerModel::rowCount(QModelIndex const& parent) const
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{
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Q_UNUSED(parent);
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return parent.isValid() ? 0 : myRows.size();
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}
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QVariant TrackerModel::data(QModelIndex const& index, int role) const
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{
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QVariant var;
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int const row = index.row();
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if ((0 <= row) && (row < myRows.size()))
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{
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TrackerInfo const& trackerInfo = myRows.at(row);
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switch (role)
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{
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case Qt::DisplayRole:
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var = trackerInfo.st.announce;
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break;
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case Qt::DecorationRole:
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var = QIcon(trackerInfo.st.getFavicon());
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break;
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case TrackerRole:
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var = qVariantFromValue(trackerInfo);
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break;
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default:
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break;
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}
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}
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return var;
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}
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/***
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****
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***/
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struct CompareTrackers
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{
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bool operator ()(TrackerInfo const& a, TrackerInfo const& b) const
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{
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if (a.torrentId != b.torrentId)
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{
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return a.torrentId < b.torrentId;
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}
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if (a.st.tier != b.st.tier)
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{
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return a.st.tier < b.st.tier;
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}
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if (a.st.isBackup != b.st.isBackup)
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{
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return !a.st.isBackup;
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}
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return a.st.announce < b.st.announce;
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}
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};
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void TrackerModel::refresh(TorrentModel const& torrentModel, QSet<int> const& ids)
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{
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// build a list of the TrackerInfos
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QVector<TrackerInfo> trackers;
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for (int const id : ids)
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{
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Torrent const* tor = torrentModel.getTorrentFromId(id);
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if (tor != 0)
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{
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TrackerStatsList const trackerList = tor->trackerStats();
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for (TrackerStat const& st : trackerList)
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{
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TrackerInfo trackerInfo;
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trackerInfo.st = st;
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trackerInfo.torrentId = id;
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trackers.append(trackerInfo);
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}
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}
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}
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// sort 'em
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CompareTrackers comp;
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std::sort(trackers.begin(), trackers.end(), comp);
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// merge 'em with the existing list
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int oldIndex = 0;
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int newIndex = 0;
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while (oldIndex < myRows.size() || newIndex < trackers.size())
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{
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bool const isEndOfOld = oldIndex == myRows.size();
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bool const isEndOfNew = newIndex == trackers.size();
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if (isEndOfOld || (!isEndOfNew && comp(trackers.at(newIndex), myRows.at(oldIndex))))
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{
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// add this new row
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beginInsertRows(QModelIndex(), oldIndex, oldIndex);
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myRows.insert(oldIndex, trackers.at(newIndex));
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endInsertRows();
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++oldIndex;
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++newIndex;
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}
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else if (isEndOfNew || (!isEndOfOld && comp(myRows.at(oldIndex), trackers.at(newIndex))))
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{
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// remove this old row
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beginRemoveRows(QModelIndex(), oldIndex, oldIndex);
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myRows.remove(oldIndex);
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endRemoveRows();
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}
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else // update existing row
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{
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myRows[oldIndex].st = trackers.at(newIndex).st;
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emit dataChanged(index(oldIndex, 0), index(oldIndex, 0));
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++oldIndex;
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++newIndex;
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}
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}
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}
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int TrackerModel::find(int torrentId, QString const& url) const
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{
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for (int i = 0, n = myRows.size(); i < n; ++i)
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{
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TrackerInfo const& inf = myRows.at(i);
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if ((inf.torrentId == torrentId) && (url == inf.st.announce))
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{
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return i;
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}
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}
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return -1;
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}
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