From d3f59798730ba5cc557db7489bd049da3309482d Mon Sep 17 00:00:00 2001
From: Markus Gans <guru@server.home.net>
Date: Thu, 28 Jul 2016 01:04:27 +0200
Subject: [PATCH] Segmentation fault fix

---
 src/fdialog.cpp    | 12 +++++++-----
 src/fmenu.cpp      |  6 +++++-
 src/fstatusbar.cpp |  1 +
 src/fwidget.cpp    |  2 +-
 4 files changed, 14 insertions(+), 7 deletions(-)

diff --git a/src/fdialog.cpp b/src/fdialog.cpp
index 65e52031..3f15ffa1 100644
--- a/src/fdialog.cpp
+++ b/src/fdialog.cpp
@@ -42,18 +42,20 @@ FDialog::FDialog (const FString& txt, FWidget* parent)
 //----------------------------------------------------------------------
 FDialog::~FDialog()  // destructor
 {
-  FApplication* fapp;
-
+  FApplication* fapp = static_cast<FApplication*>(getRootWidget());
+  bool is_quit = fapp->isQuit();
   delete dialog_menu;
   dgl_menuitem = 0;
   delete accelerator_list;
   accelerator_list = 0;
-  activatePrevWindow();
+
+  if ( ! is_quit )
+    switchToPrevWindow();
+
   delWindow(this);
   delDialog(this);
-  fapp = static_cast<FApplication*>(getRootWidget());
 
-  if ( ! fapp->quit_now )
+  if ( ! is_quit )
   {
     const FRect& geometry = getGeometryGlobalShadow();
     restoreVTerm (geometry);
diff --git a/src/fmenu.cpp b/src/fmenu.cpp
index 13cd7fa5..3822b4e6 100644
--- a/src/fmenu.cpp
+++ b/src/fmenu.cpp
@@ -69,7 +69,11 @@ FMenu::FMenu (const char* txt, FWidget* parent)
 //----------------------------------------------------------------------
 FMenu::~FMenu()
 {
-  activatePrevWindow();
+  FApplication* fapp = static_cast<FApplication*>(getRootWidget());
+
+  if ( ! fapp->isQuit() )
+    switchToPrevWindow();
+
   delWindow(this);
 
   const FRect& geometry = getGeometryGlobalShadow();
diff --git a/src/fstatusbar.cpp b/src/fstatusbar.cpp
index 07774d67..ac14bf82 100644
--- a/src/fstatusbar.cpp
+++ b/src/fstatusbar.cpp
@@ -177,6 +177,7 @@ FStatusBar::~FStatusBar()
       iter = keylist.erase(iter);
     }
   }
+  setStatusBar(0);
 }
 
 
diff --git a/src/fwidget.cpp b/src/fwidget.cpp
index 807bce9d..c8f4d26f 100644
--- a/src/fwidget.cpp
+++ b/src/fwidget.cpp
@@ -537,7 +537,7 @@ void FWidget::setStatusBar (FStatusBar* sbar)
   if ( ! sbar || statusbar == sbar )
     return;
 
-  if ( statusbar )
+  if ( statusbar && sbar != 0 )
     delete statusbar;
 
   statusbar = sbar;