Added support for save

[pulseview.git] / pv / dialogs / storeprogress.cpp

diff --git a/pv/dialogs/storeprogress.cpp b/pv/dialogs/storeprogress.cpp
new file mode 100644 (file)
index 0000000..e0f670d
--- /dev/null
+++ b/pv/dialogs/storeprogress.cpp
@@ -0,0 +1,82 @@
+/*
+ * This file is part of the PulseView project.
+ *
+ * Copyright (C) 2014 Joel Holdsworth <joel@airwebreathe.org.uk>
+ *
+ * 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 St, Fifth Floor, Boston, MA  02110-1301 USA
+ */
+
+#include "storeprogress.h"
+
+namespace pv {
+namespace dialogs {
+
+StoreProgress::StoreProgress(const QString &file_name,
+       const SigSession &session, QWidget *parent) :
+       QProgressDialog(tr("Saving..."), tr("Cancel"), 0, 0, parent),
+       _session(file_name.toStdString(), session)
+{
+       connect(&_session, SIGNAL(progress_updated()),
+               this, SLOT(on_progress_updated()));
+}
+
+StoreProgress::~StoreProgress()
+{
+       _session.wait();
+}
+
+void StoreProgress::run()
+{
+       if (_session.start())
+               show();
+       else
+               show_error();
+}
+
+void StoreProgress::show_error()
+{
+       QMessageBox msg(parentWidget());
+       msg.setText(tr("Failed to save session."));
+       msg.setInformativeText(_session.error());
+       msg.setStandardButtons(QMessageBox::Ok);
+       msg.setIcon(QMessageBox::Warning);
+       msg.exec();
+}
+
+void StoreProgress::closeEvent(QCloseEvent*)
+{
+       _session.cancel();
+}
+
+void StoreProgress::on_progress_updated()
+{
+       const std::pair<uint64_t, uint64_t> p = _session.progress();
+       assert(p.first <= p.second);
+
+       setValue(p.first);
+       setMaximum(p.second);
+
+       const QString err = _session.error();
+       if (!err.isEmpty()) {
+               show_error();
+               close();
+       }
+
+       if (p.first == p.second)
+               close();
+}
+
+} // dialogs
+} // pv