MainWindow: close all windows once we close the main one

This is useful if we have more non-modal windows and we want
them simply to close with the main one without explicitly
creating class member variables to point to such instances.

A practical example would be the debug window created in
ProfileWidget2() (diveDepthTableView) which holds
the depth profile values.

Signed-off-by: Lubomir I. Ivanov <neolit123@gmail.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/qt-ui/mainwindow.cpp b/qt-ui/mainwindow.cpp
index 20f463cf0..ccba66d70 100644
--- a/qt-ui/mainwindow.cpp
+++ b/qt-ui/mainwindow.cpp
@@ -651,6 +651,7 @@ void MainWindow::closeEvent(QCloseEvent *event)
 	}
 	event->accept();
 	writeSettings();
+	QApplication::closeAllWindows();
 }
 
 DiveListView *MainWindow::dive_list()