Add spinner while opening or saving cloud storage

Right now this is quite ugly. And at least in my VM the transparency
doesn't seem to work correctly. But at least we now have some visual
indication that we are doing something while opening or saving cloud
storage.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

1 files changed, 30 insertions, 1 deletions

diff --git a/qt-ui/mainwindow.cpp b/qt-ui/mainwindow.cpp
index 4d416d2be..7593caf47 100644
--- a/qt-ui/mainwindow.cpp
+++ b/qt-ui/mainwindow.cpp
@@ -58,7 +58,8 @@ MainWindow::MainWindow() : QMainWindow(),
 	actionPreviousDive(0),
 	helpView(0),
 	state(VIEWALL),
-	survey(0)
+	survey(0),
+	spinner(0)
 {
 	Q_ASSERT_X(m_Instance == NULL, "MainWindow", "MainWindow recreated!");
 	m_Instance = this;
@@ -374,6 +375,7 @@ void MainWindow::on_actionCloudstorageopen_triggered()
 
 	int error;
 
+	startSpinner();
 	QByteArray fileNamePtr = QFile::encodeName(filename);
 	error = parse_file(fileNamePtr.data());
 	if (!error) {
@@ -382,6 +384,7 @@ void MainWindow::on_actionCloudstorageopen_triggered()
 	}
 	getNotificationWidget()->hideNotification();
 	process_dives(false, false);
+	stopSpinner();
 	refreshDisplay();
 	ui.actionAutoGroup->setChecked(autogroup);
 }
@@ -397,10 +400,15 @@ void MainWindow::on_actionCloudstoragesave_triggered()
 	if (information()->isEditing())
 		information()->acceptChanges();
 
+	startSpinner();
+
 	if (save_dives(filename.toUtf8().data())) {
 		getNotificationWidget()->showNotification(get_error_string(), KMessageWidget::Error);
 		return;
 	}
+
+	stopSpinner();
+
 	getNotificationWidget()->showNotification(get_error_string(), KMessageWidget::Error);
 	set_filename(filename.toUtf8().data(), true);
 	setTitle(MWTF_FILENAME);
@@ -1762,3 +1770,24 @@ void MainWindow::setApplicationState(const QByteArray& state) {
 	}
 #undef SET_CURRENT_INDEX
 }
+
+void MainWindow::startSpinner()
+{
+	if (!spinner) {
+		spinner = new QtWaitingSpinner(Qt::WindowModal, this, true);
+		spinner->setRevolutionsPerSecond(1);
+		spinner->setColor(WHITE1);
+		spinner->setLineWidth(7);
+		spinner->setRoundness(40.0);
+		spinner->setMinimumTrailOpacity(0.25);
+	}
+	int shorterEdge = MIN(this->geometry().height(), this->geometry().width());
+	spinner->setInnerRadius(shorterEdge / 12);
+	spinner->setLineLength(shorterEdge / 8);
+	spinner->start();
+}
+
+void MainWindow::stopSpinner()
+{
+	spinner->stop();
+}