mirror of git://sigrok.org/pulseview
118 lines
3.1 KiB
C++
118 lines
3.1 KiB
C++
/*
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* This file is part of the PulseView project.
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*
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* Copyright (C) 2014 Joel Holdsworth <joel@airwebreathe.org.uk>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#include <cassert>
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#include <QMessageBox>
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#include "pv/session.hpp"
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#include "storeprogress.hpp"
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using std::map;
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using std::pair;
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using std::shared_ptr;
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using std::string;
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using Glib::VariantBase;
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namespace pv {
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namespace dialogs {
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StoreProgress::StoreProgress(const QString &file_name,
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const shared_ptr<sigrok::OutputFormat> output_format,
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const map<string, VariantBase> &options,
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const pair<uint64_t, uint64_t> sample_range,
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const Session &session, QWidget *parent) :
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QProgressDialog(tr("Saving..."), tr("Cancel"), 0, 0, parent),
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session_(file_name.toStdString(), output_format, options, sample_range,
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session)
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{
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connect(&session_, SIGNAL(progress_updated()),
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this, SLOT(on_progress_updated()));
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connect(&session_, SIGNAL(store_successful()),
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&session, SLOT(on_data_saved()));
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// Since we're not setting any progress in case of an error, the dialog
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// will pop up after the minimumDuration time has been reached - 4000 ms
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// by default.
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// We do not want this as it overlaps with the error message box, so we
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// set the minimumDuration to 0 so that it only appears when we feed it
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// progress data. Then, call reset() to prevent the progress dialog from
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// popping up anyway. This would happen in Qt5 because the behavior was
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// changed in such a way that the duration timer is started by the
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// constructor. We don't want that and reset() stops the timer, so we
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// use it.
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setMinimumDuration(0);
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reset();
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}
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StoreProgress::~StoreProgress()
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{
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session_.wait();
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}
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void StoreProgress::run()
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{
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if (session_.start())
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show();
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else
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show_error();
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}
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void StoreProgress::show_error()
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{
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QMessageBox msg(parentWidget());
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msg.setText(tr("Failed to save session."));
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msg.setInformativeText(session_.error());
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msg.setStandardButtons(QMessageBox::Ok);
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msg.setIcon(QMessageBox::Warning);
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msg.exec();
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close();
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}
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void StoreProgress::closeEvent(QCloseEvent*)
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{
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session_.cancel();
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// Closing doesn't mean we're going to be destroyed because our parent
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// still owns our handle. Make sure this stale instance doesn't hang around.
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deleteLater();
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}
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void StoreProgress::on_progress_updated()
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{
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const pair<int, int> p = session_.progress();
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assert(p.first <= p.second);
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if (p.second) {
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setValue(p.first);
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setMaximum(p.second);
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} else {
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const QString err = session_.error();
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if (!err.isEmpty())
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show_error();
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close();
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}
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}
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} // namespace dialogs
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} // namespace pv
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