From 2d8615b096cd751ff231fb3dc96b578a5b72dc3f Mon Sep 17 00:00:00 2001
From: vsr <vsr@opencascade.com>
Date: Wed, 25 Aug 2010 10:25:28 +0000
Subject: [PATCH] Minor fix: avoid crash in clearPrs() function, if view
 manager has been reset to 0

---
 src/Plot2d/Plot2d_ViewModel.cxx | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/Plot2d/Plot2d_ViewModel.cxx b/src/Plot2d/Plot2d_ViewModel.cxx
index 2e912da1a..a36346e0b 100755
--- a/src/Plot2d/Plot2d_ViewModel.cxx
+++ b/src/Plot2d/Plot2d_ViewModel.cxx
@@ -121,7 +121,9 @@ void Plot2d_Viewer::update()
 void Plot2d_Viewer::clearPrs()
 {
   SUIT_ViewManager* aMgr = getViewManager();
-  QVector<SUIT_ViewWindow*> aViews = aMgr->getViews();
+  QVector<SUIT_ViewWindow*> aViews;
+  if ( aMgr )
+    aViews = aMgr->getViews();
   unsigned int aSize = aViews.size();
   for (uint i = 0; i < aSize; i++) {
     Plot2d_ViewWindow* aView = (Plot2d_ViewWindow*)aViews[i];
-- 
2.39.2