From 756abc0341756b7b6cac1cf49712cc85a0717dc4 Mon Sep 17 00:00:00 2001
From: Thiago Macieira <thiago@macieira.org>
Date: Tue, 18 Feb 2014 16:47:21 -0800
Subject: [PATCH] Add an assertion to prevent MainWindow from being recreated

Signed-off-by: Thiago Macieira <thiago@macieira.org>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
---
 qt-ui/mainwindow.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/qt-ui/mainwindow.cpp b/qt-ui/mainwindow.cpp
index 42b07fbd8..7609bffcf 100644
--- a/qt-ui/mainwindow.cpp
+++ b/qt-ui/mainwindow.cpp
@@ -46,6 +46,7 @@ MainWindow::MainWindow() : QMainWindow(),
 	helpView(0),
 	state(VIEWALL)
 {
+	Q_ASSERT_X(m_Instance == NULL, "MainWindow", "MainWindow recreated!");
 	m_Instance = this;
 	ui.setupUi(this);
 	setWindowIcon(QIcon(":subsurface-icon"));