505 lines
13 KiB
C++
505 lines
13 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 <QFileInfo>
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#include <QPushButton>
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#include <libtransmission/transmission.h>
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#include <libtransmission/utils.h> /* mime64 */
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#include <libtransmission/variant.h>
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#include "AddData.h"
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#include "FreeSpaceLabel.h"
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#include "OptionsDialog.h"
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#include "Prefs.h"
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#include "Session.h"
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#include "Torrent.h"
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#include "Utils.h"
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#include "VariantHelpers.h"
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using ::trqt::variant_helpers::dictAdd;
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using ::trqt::variant_helpers::listAdd;
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/***
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****
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***/
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OptionsDialog::OptionsDialog(Session& session, Prefs const& prefs, AddData addme, QWidget* parent)
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: BaseDialog(parent)
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, add_(std::move(addme))
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, verify_button_(new QPushButton(tr("&Verify Local Data"), this))
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, session_(session)
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, is_local_(session_.isLocal())
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{
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ui_.setupUi(this);
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QString title;
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if (add_.type == AddData::FILENAME)
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{
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title = tr("Open Torrent from File");
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}
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else
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{
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title = tr("Open Torrent from URL or Magnet Link");
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}
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setWindowTitle(title);
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edit_timer_.setInterval(2000);
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edit_timer_.setSingleShot(true);
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connect(&edit_timer_, &QTimer::timeout, this, &OptionsDialog::onDestinationChanged);
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if (add_.type == AddData::FILENAME)
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{
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ui_.sourceStack->setCurrentWidget(ui_.sourceButton);
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ui_.sourceButton->setMode(PathButton::FileMode);
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ui_.sourceButton->setTitle(tr("Open Torrent"));
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ui_.sourceButton->setNameFilter(tr("Torrent Files (*.torrent);;All Files (*.*)"));
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ui_.sourceButton->setPath(add_.filename);
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connect(ui_.sourceButton, &PathButton::pathChanged, this, &OptionsDialog::onSourceChanged);
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}
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else
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{
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ui_.sourceStack->setCurrentWidget(ui_.sourceEdit);
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ui_.sourceEdit->setText(add_.readableName());
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ui_.sourceEdit->selectAll();
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connect(ui_.sourceEdit, &QLineEdit::editingFinished, this, &OptionsDialog::onSourceChanged);
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}
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ui_.sourceStack->setFixedHeight(ui_.sourceStack->currentWidget()->sizeHint().height());
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ui_.sourceLabel->setBuddy(ui_.sourceStack->currentWidget());
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QFontMetrics const font_metrics(font());
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int const width = font_metrics.size(0, QStringLiteral("This is a pretty long torrent filename indeed.torrent")).width();
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ui_.sourceStack->setMinimumWidth(width);
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QString const download_dir(Utils::removeTrailingDirSeparator(prefs.getString(Prefs::DOWNLOAD_DIR)));
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ui_.freeSpaceLabel->setSession(session_);
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ui_.freeSpaceLabel->setPath(download_dir);
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ui_.destinationButton->setMode(PathButton::DirectoryMode);
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ui_.destinationButton->setTitle(tr("Select Destination"));
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ui_.destinationButton->setPath(download_dir);
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ui_.destinationEdit->setText(download_dir);
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if (is_local_)
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{
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local_destination_.setPath(download_dir);
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}
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connect(ui_.destinationButton, &PathButton::pathChanged, this, &OptionsDialog::onDestinationChanged);
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connect(ui_.destinationEdit, &QLineEdit::textEdited, &edit_timer_, qOverload<>(&QTimer::start));
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connect(ui_.destinationEdit, &QLineEdit::editingFinished, this, &OptionsDialog::onDestinationChanged);
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ui_.filesView->setEditable(false);
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ui_.priorityCombo->addItem(tr("High"), TR_PRI_HIGH);
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ui_.priorityCombo->addItem(tr("Normal"), TR_PRI_NORMAL);
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ui_.priorityCombo->addItem(tr("Low"), TR_PRI_LOW);
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ui_.priorityCombo->setCurrentIndex(1); // Normal
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ui_.dialogButtons->addButton(verify_button_, QDialogButtonBox::ActionRole);
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connect(verify_button_, &QAbstractButton::clicked, this, &OptionsDialog::onVerify);
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ui_.startCheck->setChecked(prefs.getBool(Prefs::START));
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ui_.trashCheck->setChecked(prefs.getBool(Prefs::TRASH_ORIGINAL));
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connect(ui_.dialogButtons, &QDialogButtonBox::rejected, this, &QObject::deleteLater);
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connect(ui_.dialogButtons, &QDialogButtonBox::accepted, this, &OptionsDialog::onAccepted);
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connect(ui_.filesView, &FileTreeView::priorityChanged, this, &OptionsDialog::onPriorityChanged);
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connect(ui_.filesView, &FileTreeView::wantedChanged, this, &OptionsDialog::onWantedChanged);
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connect(&verify_timer_, &QTimer::timeout, this, &OptionsDialog::onTimeout);
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connect(&session_, &Session::sessionUpdated, this, &OptionsDialog::onSessionUpdated);
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updateWidgetsLocality();
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reload();
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}
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OptionsDialog::~OptionsDialog()
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{
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clearInfo();
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}
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/***
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****
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***/
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void OptionsDialog::clearInfo()
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{
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if (have_info_)
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{
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tr_metainfoFree(&info_);
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}
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have_info_ = false;
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files_.clear();
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}
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void OptionsDialog::reload()
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{
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clearInfo();
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clearVerify();
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tr_ctor* ctor = tr_ctorNew(nullptr);
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switch (add_.type)
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{
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case AddData::MAGNET:
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tr_ctorSetMetainfoFromMagnetLink(ctor, add_.magnet.toUtf8().constData());
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break;
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case AddData::FILENAME:
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tr_ctorSetMetainfoFromFile(ctor, add_.filename.toUtf8().constData());
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break;
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case AddData::METAINFO:
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tr_ctorSetMetainfo(ctor, add_.metainfo.constData(), add_.metainfo.size());
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break;
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default:
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break;
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}
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int const err = tr_torrentParse(ctor, &info_);
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have_info_ = err == 0;
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tr_ctorFree(ctor);
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ui_.filesView->clear();
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files_.clear();
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priorities_.clear();
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wanted_.clear();
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bool const have_files_to_show = have_info_ && info_.fileCount > 0;
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ui_.filesView->setVisible(have_files_to_show);
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verify_button_->setEnabled(have_files_to_show);
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layout()->setSizeConstraint(have_files_to_show ? QLayout::SetDefaultConstraint : QLayout::SetFixedSize);
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if (have_info_)
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{
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priorities_.insert(0, info_.fileCount, TR_PRI_NORMAL);
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wanted_.insert(0, info_.fileCount, true);
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for (tr_file_index_t i = 0; i < info_.fileCount; ++i)
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{
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TorrentFile file;
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file.index = i;
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file.priority = priorities_[i];
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file.wanted = wanted_[i];
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file.size = info_.files[i].length;
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file.have = 0;
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file.filename = QString::fromUtf8(info_.files[i].name);
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files_.append(file);
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}
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}
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ui_.filesView->update(files_);
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}
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void OptionsDialog::updateWidgetsLocality()
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{
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ui_.destinationStack->setCurrentWidget(is_local_ ? static_cast<QWidget*>(ui_.destinationButton) : ui_.destinationEdit);
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ui_.destinationStack->setFixedHeight(ui_.destinationStack->currentWidget()->sizeHint().height());
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ui_.destinationLabel->setBuddy(ui_.destinationStack->currentWidget());
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// hide the % done when non-local, since we've no way of knowing
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(ui_.filesView->*(is_local_ ? &QTreeView::showColumn : &QTreeView::hideColumn))(2);
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verify_button_->setVisible(is_local_);
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}
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void OptionsDialog::onSessionUpdated()
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{
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bool const is_local = session_.isLocal();
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if (is_local_ != is_local)
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{
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is_local_ = is_local;
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updateWidgetsLocality();
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}
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}
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void OptionsDialog::onPriorityChanged(QSet<int> const& file_indices, int priority)
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{
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for (int const i : file_indices)
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{
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priorities_[i] = priority;
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}
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}
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void OptionsDialog::onWantedChanged(QSet<int> const& file_indices, bool is_wanted)
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{
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for (int const i : file_indices)
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{
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wanted_[i] = is_wanted;
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}
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}
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void OptionsDialog::onAccepted()
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{
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// rpc spec section 3.4 "adding a torrent"
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tr_variant args;
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tr_variantInitDict(&args, 10);
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QString download_dir;
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// "download-dir"
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if (ui_.destinationStack->currentWidget() == ui_.destinationButton)
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{
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download_dir = local_destination_.absolutePath();
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}
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else
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{
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download_dir = ui_.destinationEdit->text();
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}
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dictAdd(&args, TR_KEY_download_dir, download_dir);
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// paused
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dictAdd(&args, TR_KEY_paused, !ui_.startCheck->isChecked());
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// priority
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int const index = ui_.priorityCombo->currentIndex();
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int const priority = ui_.priorityCombo->itemData(index).toInt();
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dictAdd(&args, TR_KEY_bandwidthPriority, priority);
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// files-unwanted
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int count = wanted_.count(false);
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if (count > 0)
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{
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tr_variant* l = tr_variantDictAddList(&args, TR_KEY_files_unwanted, count);
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for (int i = 0, n = wanted_.size(); i < n; ++i)
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{
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if (!wanted_.at(i))
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{
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listAdd(l, i);
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}
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}
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}
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// priority-low
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count = priorities_.count(TR_PRI_LOW);
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if (count > 0)
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{
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tr_variant* l = tr_variantDictAddList(&args, TR_KEY_priority_low, count);
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for (int i = 0, n = priorities_.size(); i < n; ++i)
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{
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if (priorities_.at(i) == TR_PRI_LOW)
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{
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listAdd(l, i);
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}
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}
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}
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// priority-high
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count = priorities_.count(TR_PRI_HIGH);
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if (count > 0)
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{
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tr_variant* l = tr_variantDictAddList(&args, TR_KEY_priority_high, count);
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for (int i = 0, n = priorities_.size(); i < n; ++i)
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{
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if (priorities_.at(i) == TR_PRI_HIGH)
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{
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listAdd(l, i);
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}
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}
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}
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session_.addTorrent(add_, &args, ui_.trashCheck->isChecked());
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deleteLater();
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}
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void OptionsDialog::onSourceChanged()
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{
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if (ui_.sourceStack->currentWidget() == ui_.sourceButton)
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{
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add_.set(ui_.sourceButton->path());
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}
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else
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{
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add_.set(ui_.sourceEdit->text());
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}
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reload();
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}
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void OptionsDialog::onDestinationChanged()
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{
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if (ui_.destinationStack->currentWidget() == ui_.destinationButton)
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{
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local_destination_.setPath(ui_.destinationButton->path());
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ui_.freeSpaceLabel->setPath(local_destination_.absolutePath());
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}
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else
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{
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ui_.freeSpaceLabel->setPath(ui_.destinationEdit->text());
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}
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}
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/***
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****
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**** VERIFY
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****
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***/
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void OptionsDialog::clearVerify()
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{
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verify_hash_.reset();
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verify_file_.close();
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verify_file_pos_ = 0;
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verify_flags_.clear();
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verify_file_index_ = 0;
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verify_piece_index_ = 0;
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verify_piece_pos_ = 0;
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verify_timer_.stop();
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for (TorrentFile& f : files_)
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{
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f.have = 0;
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}
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ui_.filesView->update(files_);
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}
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void OptionsDialog::onVerify()
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{
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clearVerify();
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verify_flags_.insert(0, info_.pieceCount, false);
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verify_timer_.setSingleShot(false);
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verify_timer_.start(0);
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}
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namespace
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{
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uint64_t getPieceSize(tr_info const* info, tr_piece_index_t piece_index)
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{
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if (piece_index != info->pieceCount - 1)
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{
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return info->pieceSize;
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}
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return info->totalSize % info->pieceSize;
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}
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} // namespace
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void OptionsDialog::onTimeout()
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{
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if (files_.isEmpty())
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{
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verify_timer_.stop();
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return;
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}
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tr_file const* file = &info_.files[verify_file_index_];
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if (verify_file_pos_ == 0 && !verify_file_.isOpen())
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{
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QFileInfo const file_info(local_destination_, QString::fromUtf8(file->name));
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verify_file_.setFileName(file_info.absoluteFilePath());
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verify_file_.open(QIODevice::ReadOnly);
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}
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int64_t left_in_piece = getPieceSize(&info_, verify_piece_index_) - verify_piece_pos_;
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int64_t left_in_file = file->length - verify_file_pos_;
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int64_t bytes_this_pass = qMin(left_in_file, left_in_piece);
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bytes_this_pass = qMin(bytes_this_pass, static_cast<int64_t>(sizeof(verify_buf_)));
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if (verify_file_.isOpen() && verify_file_.seek(verify_file_pos_))
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{
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int64_t num_read = verify_file_.read(verify_buf_, bytes_this_pass);
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if (num_read == bytes_this_pass)
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{
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verify_hash_.addData(verify_buf_, num_read);
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}
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}
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left_in_piece -= bytes_this_pass;
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left_in_file -= bytes_this_pass;
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verify_piece_pos_ += bytes_this_pass;
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verify_file_pos_ += bytes_this_pass;
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verify_bins_[verify_file_index_] += bytes_this_pass;
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if (left_in_piece == 0)
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{
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QByteArray const result(verify_hash_.result());
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bool const matches = memcmp(result.constData(), info_.pieces[verify_piece_index_].hash, SHA_DIGEST_LENGTH) == 0;
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verify_flags_[verify_piece_index_] = matches;
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verify_piece_pos_ = 0;
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++verify_piece_index_;
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verify_hash_.reset();
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FileList changed_files;
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if (matches)
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{
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for (auto i = verify_bins_.begin(), end = verify_bins_.end(); i != end; ++i)
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{
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TorrentFile& f(files_[i.key()]);
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f.have += i.value();
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changed_files.append(f);
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}
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}
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ui_.filesView->update(changed_files);
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verify_bins_.clear();
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}
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if (left_in_file == 0)
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{
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verify_file_.close();
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++verify_file_index_;
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verify_file_pos_ = 0;
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}
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bool done = verify_piece_index_ >= info_.pieceCount;
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if (done)
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{
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uint64_t have = 0;
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for (TorrentFile const& f : files_)
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{
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have += f.have;
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}
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if (have == 0) // everything failed
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{
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// did the user accidentally specify the child directory instead of the parent?
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QStringList const tokens = QString::fromUtf8(file->name).split(QLatin1Char('/'));
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if (!tokens.empty() && local_destination_.dirName() == tokens.at(0))
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{
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// move up one directory and try again
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local_destination_.cdUp();
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onVerify();
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done = false;
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}
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}
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}
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if (done)
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{
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verify_timer_.stop();
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}
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}
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