From 22de2326e9de80b06fc96e504ada74dc274e1abc Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andr=C3=A9=20P=C3=B6nitz?= <poenitz@gmx.net>
Date: Tue, 15 Apr 2008 17:00:53 +0000
Subject: [PATCH] fix crash on application desctruction

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@24273 a592a061-630c-0410-9148-cb99ea01b6c8
---
 src/frontends/qt4/GuiWorkArea.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/frontends/qt4/GuiWorkArea.cpp b/src/frontends/qt4/GuiWorkArea.cpp
index f286152b09..5558ef716d 100644
--- a/src/frontends/qt4/GuiWorkArea.cpp
+++ b/src/frontends/qt4/GuiWorkArea.cpp
@@ -1352,6 +1352,9 @@ bool TabWorkArea::removeWorkArea(GuiWorkArea * work_area)
 
 void TabWorkArea::on_currentTabChanged(int i)
 {
+	// returns e.g. on application destruction
+	if (i == -1)
+		return;
 	GuiWorkArea * wa = dynamic_cast<GuiWorkArea *>(widget(i));
 	LASSERT(wa, /**/);
 	BufferView & bv = wa->bufferView();