Merge pull request #11085 from Chocobo1/model

Better on-demand reloading of torrent data

src/app/application.cpp

@@ -203,7 +203,7 @@ void Application::setFileLoggerEnabled(const bool value)
 QString Application::fileLoggerPath() const
 {
     return settings()->loadValue(KEY_FILELOGGER_PATH,
-            QVariant(specialFolderLocation(SpecialFolder::Data) + LOG_FOLDER)).toString();
+            {specialFolderLocation(SpecialFolder::Data) + LOG_FOLDER}).toString();
 }
 
 void Application::setFileLoggerPath(const QString &path)

src/base/bittorrent/session.cpp

@@ -4354,6 +4354,9 @@ void Session::handleSessionStatsAlert(const lt::session_stats_alert *p)
 
 void Session::handleStateUpdateAlert(const lt::state_update_alert *p)
 {
+    QVector<BitTorrent::TorrentHandle *> updatedTorrents;
+    updatedTorrents.reserve(p->status.size());
+
     for (const lt::torrent_status &status : p->status) {
         TorrentHandle *const torrent = m_torrents.value(status.info_hash);
 
@@ -4361,6 +4364,7 @@ void Session::handleStateUpdateAlert(const lt::state_update_alert *p)
             continue;
 
         torrent->handleStateUpdate(status);
+        updatedTorrents.push_back(torrent);
     }
 
     m_torrentStatusReport = TorrentStatusReport();
@@ -4383,7 +4387,7 @@ void Session::handleStateUpdateAlert(const lt::state_update_alert *p)
             ++m_torrentStatusReport.nbErrored;
     }
 
-    emit torrentsUpdated();
+    emit torrentsUpdated(updatedTorrents);
 }
 
 namespace

src/base/bittorrent/session.h

@@ -450,7 +450,7 @@ namespace BitTorrent
 
     signals:
         void statsUpdated();
-        void torrentsUpdated();
+        void torrentsUpdated(const QVector<BitTorrent::TorrentHandle *> &torrents);
         void addTorrentFailed(const QString &error);
         void torrentAdded(BitTorrent::TorrentHandle *const torrent);
         void torrentNew(BitTorrent::TorrentHandle *const torrent);

src/gui/search/pluginselectdialog.cpp

@@ -234,7 +234,7 @@ void PluginSelectDialog::setRowColor(const int row, const QString &color)
 {
     QTreeWidgetItem *item = m_ui->pluginsTree->topLevelItem(row);
     for (int i = 0; i < m_ui->pluginsTree->columnCount(); ++i) {
-        item->setData(i, Qt::ForegroundRole, QVariant(QColor(color)));
+        item->setData(i, Qt::ForegroundRole, QColor(color));
     }
 }
 
@@ -289,7 +289,7 @@ void PluginSelectDialog::addNewPlugin(const QString &pluginName)
     // Handle icon
     if (QFile::exists(plugin->iconPath)) {
         // Good, we already have the icon
-        item->setData(PLUGIN_NAME, Qt::DecorationRole, QVariant(QIcon(plugin->iconPath)));
+        item->setData(PLUGIN_NAME, Qt::DecorationRole, QIcon(plugin->iconPath));
     }
     else {
         // Icon is missing, we must download it

src/gui/search/searchwidget.cpp

@@ -144,7 +144,7 @@ SearchWidget::SearchWidget(MainWindow *mainWindow)
 void SearchWidget::fillCatCombobox()
 {
     m_ui->comboCategory->clear();
-    m_ui->comboCategory->addItem(SearchPluginManager::categoryFullName("all"), QVariant("all"));
+    m_ui->comboCategory->addItem(SearchPluginManager::categoryFullName("all"), "all");
 
     using QStrPair = QPair<QString, QString>;
     QVector<QStrPair> tmpList;
@@ -154,7 +154,7 @@ void SearchWidget::fillCatCombobox()
 
     for (const QStrPair &p : asConst(tmpList)) {
         qDebug("Supported category: %s", qUtf8Printable(p.second));
-        m_ui->comboCategory->addItem(p.first, QVariant(p.second));
+        m_ui->comboCategory->addItem(p.first, p.second);
     }
 
     if (m_ui->comboCategory->count() > 1)
@@ -164,9 +164,9 @@ void SearchWidget::fillCatCombobox()
 void SearchWidget::fillPluginComboBox()
 {
     m_ui->selectPlugin->clear();
-    m_ui->selectPlugin->addItem(tr("Only enabled"), QVariant("enabled"));
-    m_ui->selectPlugin->addItem(tr("All plugins"), QVariant("all"));
-    m_ui->selectPlugin->addItem(tr("Select..."), QVariant("multi"));
+    m_ui->selectPlugin->addItem(tr("Only enabled"), "enabled");
+    m_ui->selectPlugin->addItem(tr("All plugins"), "all");
+    m_ui->selectPlugin->addItem(tr("Select..."), "multi");
 
     using QStrPair = QPair<QString, QString>;
     QVector<QStrPair> tmpList;
@@ -175,7 +175,7 @@ void SearchWidget::fillPluginComboBox()
     std::sort(tmpList.begin(), tmpList.end(), [](const QStrPair &l, const QStrPair &r) { return (l.first < r.first); } );
 
     for (const QStrPair &p : asConst(tmpList))
-        m_ui->selectPlugin->addItem(p.first, QVariant(p.second));
+        m_ui->selectPlugin->addItem(p.first, p.second);
 
     if (m_ui->selectPlugin->count() > 3)
         m_ui->selectPlugin->insertSeparator(3);

src/gui/torrentcontentfiltermodel.cpp

@@ -107,7 +107,7 @@ void TorrentContentFilterModel::selectAll()
     for (int i = 0; i < rowCount(); ++i)
         setData(index(i, 0), Qt::Checked, Qt::CheckStateRole);
 
-    emit dataChanged(index(0,0), index(rowCount(), columnCount()));
+    emit dataChanged(index(0, 0), index((rowCount() - 1), (columnCount() - 1)));
 }
 
 void TorrentContentFilterModel::selectNone()
@@ -115,7 +115,7 @@ void TorrentContentFilterModel::selectNone()
     for (int i = 0; i < rowCount(); ++i)
         setData(index(i, 0), Qt::Unchecked, Qt::CheckStateRole);
 
-    emit dataChanged(index(0,0), index(rowCount(), columnCount()));
+    emit dataChanged(index(0, 0), index((rowCount() - 1), (columnCount() - 1)));
 }
 
 bool TorrentContentFilterModel::hasFiltered(const QModelIndex &folder) const

src/gui/torrentcontentmodel.cpp

@@ -228,7 +228,7 @@ void TorrentContentModel::updateFilesProgress(const QVector<qreal> &fp)
     // Update folders progress in the tree
     m_rootItem->recalculateProgress();
     m_rootItem->recalculateAvailability();
-    emit dataChanged(index(0, 0), index(rowCount(), columnCount()));
+    emit dataChanged(index(0, 0), index((rowCount() - 1), (columnCount() - 1)));
 }
 
 void TorrentContentModel::updateFilesPriorities(const QVector<BitTorrent::DownloadPriority> &fprio)
@@ -241,7 +241,7 @@ void TorrentContentModel::updateFilesPriorities(const QVector<BitTorrent::Downlo
     emit layoutAboutToBeChanged();
     for (int i = 0; i < fprio.size(); ++i)
         m_filesIndex[i]->setPriority(static_cast<BitTorrent::DownloadPriority>(fprio[i]));
-    emit dataChanged(index(0, 0), index(rowCount(), columnCount()));
+    emit dataChanged(index(0, 0), index((rowCount() - 1), (columnCount() - 1)));
 }
 
 void TorrentContentModel::updateFilesAvailability(const QVector<qreal> &fa)
@@ -255,7 +255,7 @@ void TorrentContentModel::updateFilesAvailability(const QVector<qreal> &fa)
         m_filesIndex[i]->setAvailability(fa[i]);
     // Update folders progress in the tree
     m_rootItem->recalculateProgress();
-    emit dataChanged(index(0, 0), index(rowCount(), columnCount()));
+    emit dataChanged(index(0, 0), index((rowCount() - 1), (columnCount() - 1)));
 }
 
 QVector<BitTorrent::DownloadPriority> TorrentContentModel::getFilePriorities() const
@@ -302,7 +302,7 @@ bool TorrentContentModel::setData(const QModelIndex &index, const QVariant &valu
             // Update folders progress in the tree
             m_rootItem->recalculateProgress();
             m_rootItem->recalculateAvailability();
-            emit dataChanged(this->index(0, 0), this->index(rowCount() - 1, columnCount() - 1));
+            emit dataChanged(this->index(0, 0), this->index((rowCount() - 1), (columnCount() - 1)));
             emit filteredFilesChanged();
         }
         return true;
@@ -502,12 +502,12 @@ void TorrentContentModel::selectAll()
         if (child->priority() == BitTorrent::DownloadPriority::Ignored)
             child->setPriority(BitTorrent::DownloadPriority::Normal);
     }
-    emit dataChanged(index(0, 0), index(rowCount(), columnCount()));
+    emit dataChanged(index(0, 0), index((rowCount() - 1), (columnCount() - 1)));
 }
 
 void TorrentContentModel::selectNone()
 {
     for (int i = 0; i < m_rootItem->childCount(); ++i)
         m_rootItem->child(i)->setPriority(BitTorrent::DownloadPriority::Ignored);
-    emit dataChanged(index(0, 0), index(rowCount(), columnCount()));
+    emit dataChanged(index(0, 0), index((rowCount() - 1), (columnCount() - 1)));
 }

src/gui/transferlistfilterswidget.cpp

@@ -151,31 +151,31 @@ StatusFilterWidget::StatusFilterWidget(QWidget *parent, TransferListWidget *tran
 
     // Add status filters
     auto *all = new QListWidgetItem(this);
-    all->setData(Qt::DisplayRole, QVariant(tr("All (0)", "this is for the status filter")));
+    all->setData(Qt::DisplayRole, tr("All (0)", "this is for the status filter"));
     all->setData(Qt::DecorationRole, QIcon(":/icons/skin/filterall.svg"));
     auto *downloading = new QListWidgetItem(this);
-    downloading->setData(Qt::DisplayRole, QVariant(tr("Downloading (0)")));
+    downloading->setData(Qt::DisplayRole, tr("Downloading (0)"));
     downloading->setData(Qt::DecorationRole, QIcon(":/icons/skin/downloading.svg"));
     auto *seeding = new QListWidgetItem(this);
-    seeding->setData(Qt::DisplayRole, QVariant(tr("Seeding (0)")));
+    seeding->setData(Qt::DisplayRole, tr("Seeding (0)"));
     seeding->setData(Qt::DecorationRole, QIcon(":/icons/skin/uploading.svg"));
     auto *completed = new QListWidgetItem(this);
-    completed->setData(Qt::DisplayRole, QVariant(tr("Completed (0)")));
+    completed->setData(Qt::DisplayRole, tr("Completed (0)"));
     completed->setData(Qt::DecorationRole, QIcon(":/icons/skin/completed.svg"));
     auto *resumed = new QListWidgetItem(this);
-    resumed->setData(Qt::DisplayRole, QVariant(tr("Resumed (0)")));
+    resumed->setData(Qt::DisplayRole, tr("Resumed (0)"));
     resumed->setData(Qt::DecorationRole, QIcon(":/icons/skin/resumed.svg"));
     auto *paused = new QListWidgetItem(this);
-    paused->setData(Qt::DisplayRole, QVariant(tr("Paused (0)")));
+    paused->setData(Qt::DisplayRole, tr("Paused (0)"));
     paused->setData(Qt::DecorationRole, QIcon(":/icons/skin/paused.svg"));
     auto *active = new QListWidgetItem(this);
-    active->setData(Qt::DisplayRole, QVariant(tr("Active (0)")));
+    active->setData(Qt::DisplayRole, tr("Active (0)"));
     active->setData(Qt::DecorationRole, QIcon(":/icons/skin/filteractive.svg"));
     auto *inactive = new QListWidgetItem(this);
-    inactive->setData(Qt::DisplayRole, QVariant(tr("Inactive (0)")));
+    inactive->setData(Qt::DisplayRole, tr("Inactive (0)"));
     inactive->setData(Qt::DecorationRole, QIcon(":/icons/skin/filterinactive.svg"));
     auto *errored = new QListWidgetItem(this);
-    errored->setData(Qt::DisplayRole, QVariant(tr("Errored (0)")));
+    errored->setData(Qt::DisplayRole, tr("Errored (0)"));
     errored->setData(Qt::DecorationRole, QIcon(":/icons/skin/error.svg"));
 
     const Preferences *const pref = Preferences::instance();
@@ -190,17 +190,17 @@ StatusFilterWidget::~StatusFilterWidget()
 
 void StatusFilterWidget::updateTorrentNumbers()
 {
-    auto report = BitTorrent::Session::instance()->torrentStatusReport();
+    const BitTorrent::TorrentStatusReport report = BitTorrent::Session::instance()->torrentStatusReport();
 
-    item(TorrentFilter::All)->setData(Qt::DisplayRole, QVariant(tr("All (%1)").arg(report.nbActive + report.nbInactive)));
-    item(TorrentFilter::Downloading)->setData(Qt::DisplayRole, QVariant(tr("Downloading (%1)").arg(report.nbDownloading)));
-    item(TorrentFilter::Seeding)->setData(Qt::DisplayRole, QVariant(tr("Seeding (%1)").arg(report.nbSeeding)));
-    item(TorrentFilter::Completed)->setData(Qt::DisplayRole, QVariant(tr("Completed (%1)").arg(report.nbCompleted)));
-    item(TorrentFilter::Paused)->setData(Qt::DisplayRole, QVariant(tr("Paused (%1)").arg(report.nbPaused)));
-    item(TorrentFilter::Resumed)->setData(Qt::DisplayRole, QVariant(tr("Resumed (%1)").arg(report.nbResumed)));
-    item(TorrentFilter::Active)->setData(Qt::DisplayRole, QVariant(tr("Active (%1)").arg(report.nbActive)));
-    item(TorrentFilter::Inactive)->setData(Qt::DisplayRole, QVariant(tr("Inactive (%1)").arg(report.nbInactive)));
-    item(TorrentFilter::Errored)->setData(Qt::DisplayRole, QVariant(tr("Errored (%1)").arg(report.nbErrored)));
+    item(TorrentFilter::All)->setData(Qt::DisplayRole, tr("All (%1)").arg(report.nbActive + report.nbInactive));
+    item(TorrentFilter::Downloading)->setData(Qt::DisplayRole, tr("Downloading (%1)").arg(report.nbDownloading));
+    item(TorrentFilter::Seeding)->setData(Qt::DisplayRole, tr("Seeding (%1)").arg(report.nbSeeding));
+    item(TorrentFilter::Completed)->setData(Qt::DisplayRole, tr("Completed (%1)").arg(report.nbCompleted));
+    item(TorrentFilter::Paused)->setData(Qt::DisplayRole, tr("Paused (%1)").arg(report.nbPaused));
+    item(TorrentFilter::Resumed)->setData(Qt::DisplayRole, tr("Resumed (%1)").arg(report.nbResumed));
+    item(TorrentFilter::Active)->setData(Qt::DisplayRole, tr("Active (%1)").arg(report.nbActive));
+    item(TorrentFilter::Inactive)->setData(Qt::DisplayRole, tr("Inactive (%1)").arg(report.nbInactive));
+    item(TorrentFilter::Errored)->setData(Qt::DisplayRole, tr("Errored (%1)").arg(report.nbErrored));
 }
 
 void StatusFilterWidget::showMenu(const QPoint &) {}
@@ -220,16 +220,16 @@ TrackerFiltersList::TrackerFiltersList(QWidget *parent, TransferListWidget *tran
     , m_downloadTrackerFavicon(downloadFavicon)
 {
     auto *allTrackers = new QListWidgetItem(this);
-    allTrackers->setData(Qt::DisplayRole, QVariant(tr("All (0)", "this is for the tracker filter")));
+    allTrackers->setData(Qt::DisplayRole, tr("All (0)", "this is for the tracker filter"));
     allTrackers->setData(Qt::DecorationRole, UIThemeManager::instance()->getIcon("network-server"));
     auto *noTracker = new QListWidgetItem(this);
-    noTracker->setData(Qt::DisplayRole, QVariant(tr("Trackerless (0)")));
+    noTracker->setData(Qt::DisplayRole, tr("Trackerless (0)"));
     noTracker->setData(Qt::DecorationRole, UIThemeManager::instance()->getIcon("network-server"));
     auto *errorTracker = new QListWidgetItem(this);
-    errorTracker->setData(Qt::DisplayRole, QVariant(tr("Error (0)")));
+    errorTracker->setData(Qt::DisplayRole, tr("Error (0)"));
     errorTracker->setData(Qt::DecorationRole, style()->standardIcon(QStyle::SP_MessageBoxCritical));
     auto *warningTracker = new QListWidgetItem(this);
-    warningTracker->setData(Qt::DisplayRole, QVariant(tr("Warning (0)")));
+    warningTracker->setData(Qt::DisplayRole, tr("Warning (0)"));
     warningTracker->setData(Qt::DecorationRole, style()->standardIcon(QStyle::SP_MessageBoxWarning));
     m_trackers.insert("", QStringList());
 
@@ -460,7 +460,7 @@ void TrackerFiltersList::handleFavicoDownloadFinished(const Net::DownloadResult
         Utils::Fs::forceRemove(result.filePath);
     }
     else {
-        trackerItem->setData(Qt::DecorationRole, QVariant(QIcon(result.filePath)));
+        trackerItem->setData(Qt::DecorationRole, QIcon(result.filePath));
         m_iconPaths.append(result.filePath);
     }
 }

src/gui/transferlistmodel.cpp

@@ -77,15 +77,13 @@ TransferListModel::TransferListModel(QObject *parent)
     connect(Session::instance(), &Session::torrentFinishedChecking, this, &TransferListModel::handleTorrentStatusUpdated);
 }
 
-int TransferListModel::rowCount(const QModelIndex &index) const
+int TransferListModel::rowCount(const QModelIndex &) const
 {
-    Q_UNUSED(index);
-    return m_torrents.size();
+    return m_torrentList.size();
 }
 
-int TransferListModel::columnCount(const QModelIndex &parent) const
+int TransferListModel::columnCount(const QModelIndex &) const
 {
-    Q_UNUSED(parent);
     return NB_COLUMNS;
 }
 
@@ -164,7 +162,7 @@ QVariant TransferListModel::data(const QModelIndex &index, const int role) const
 {
     if (!index.isValid()) return {};
 
-    const BitTorrent::TorrentHandle *torrent = m_torrents.value(index.row());
+    const BitTorrent::TorrentHandle *torrent = m_torrentList.value(index.row());
     if (!torrent) return {};
 
     if ((role == Qt::DecorationRole) && (index.column() == TR_NAME))
@@ -251,11 +249,9 @@ QVariant TransferListModel::data(const QModelIndex &index, const int role) const
 
 bool TransferListModel::setData(const QModelIndex &index, const QVariant &value, int role)
 {
-    qDebug() << Q_FUNC_INFO << value;
     if (!index.isValid() || (role != Qt::DisplayRole)) return false;
 
-    qDebug("Index is valid and role is DisplayRole");
-    BitTorrent::TorrentHandle *const torrent = m_torrents.value(index.row());
+    BitTorrent::TorrentHandle *const torrent = m_torrentList.value(index.row());
     if (!torrent) return false;
 
     // Category and Name columns can be edited
@@ -275,13 +271,15 @@ bool TransferListModel::setData(const QModelIndex &index, const QVariant &value,
 
 void TransferListModel::addTorrent(BitTorrent::TorrentHandle *const torrent)
 {
-    if (!m_torrents.contains(torrent)) {
-        const int row = m_torrents.size();
-        beginInsertRows(QModelIndex(), row, row);
-        m_torrents << torrent;
+    Q_ASSERT(!m_torrentMap.contains(torrent));
+
+    const int row = m_torrentList.size();
+
+    beginInsertRows({}, row, row);
+    m_torrentList << torrent;
+    m_torrentMap[torrent] = row;
     endInsertRows();
 }
-}
 
 Qt::ItemFlags TransferListModel::flags(const QModelIndex &index) const
 {
@@ -295,29 +293,48 @@ BitTorrent::TorrentHandle *TransferListModel::torrentHandle(const QModelIndex &i
 {
     if (!index.isValid()) return nullptr;
 
-    return m_torrents.value(index.row());
+    return m_torrentList.value(index.row());
 }
 
 void TransferListModel::handleTorrentAboutToBeRemoved(BitTorrent::TorrentHandle *const torrent)
 {
-    const int row = m_torrents.indexOf(torrent);
-    if (row >= 0) {
-        beginRemoveRows(QModelIndex(), row, row);
-        m_torrents.removeAt(row);
-        endRemoveRows();
+    const int row = m_torrentMap.value(torrent, -1);
+    Q_ASSERT(row >= 0);
+
+    beginRemoveRows({}, row, row);
+    m_torrentList.removeAt(row);
+    m_torrentMap.remove(torrent);
+    for (int &value : m_torrentMap) {
+        if (value > row)
+            --value;
     }
+    endRemoveRows();
 }
 
 void TransferListModel::handleTorrentStatusUpdated(BitTorrent::TorrentHandle *const torrent)
 {
-    const int row = m_torrents.indexOf(torrent);
-    if (row >= 0)
+    const int row = m_torrentMap.value(torrent, -1);
+    Q_ASSERT(row >= 0);
+
     emit dataChanged(index(row, 0), index(row, columnCount() - 1));
 }
 
-void TransferListModel::handleTorrentsUpdated()
+void TransferListModel::handleTorrentsUpdated(const QVector<BitTorrent::TorrentHandle *> &torrents)
 {
-    emit dataChanged(index(0, 0), index(rowCount() - 1, columnCount() - 1));
+    const int columns = (columnCount() - 1);
+
+    if (torrents.size() <= (m_torrentList.size() * 0.5)) {
+        for (BitTorrent::TorrentHandle *const torrent : torrents) {
+            const int row = m_torrentMap.value(torrent, -1);
+            Q_ASSERT(row >= 0);
+
+            emit dataChanged(index(row, 0), index(row, columns));
+        }
+    }
+    else {
+        // save the overhead when more than half of the torrent list needs update
+        emit dataChanged(index(0, 0), index((rowCount() - 1), columns));
+    }
 }
 
 // Static functions

src/gui/transferlistmodel.h

@@ -84,8 +84,8 @@ public:
 
     explicit TransferListModel(QObject *parent = nullptr);
 
-    int rowCount(const QModelIndex &index = {}) const override;
-    int columnCount(const QModelIndex &parent=QModelIndex()) const override;
+    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;
@@ -97,10 +97,11 @@ private slots:
     void addTorrent(BitTorrent::TorrentHandle *const torrent);
     void handleTorrentAboutToBeRemoved(BitTorrent::TorrentHandle *const torrent);
     void handleTorrentStatusUpdated(BitTorrent::TorrentHandle *const torrent);
-    void handleTorrentsUpdated();
+    void handleTorrentsUpdated(const QVector<BitTorrent::TorrentHandle *> &torrents);
 
 private:
-    QList<BitTorrent::TorrentHandle *> m_torrents;
+    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