From 38c35f14edc698d65af03f7e157775b8b778937e Mon Sep 17 00:00:00 2001
From: asl <asl@opencascade.com>
Date: Fri, 9 Dec 2005 14:57:33 +0000
Subject: [PATCH] PAL8983 - crash if user closes study during animation is
 playing

---
 src/VISU_I/VISU_TimeAnimation.cxx | 22 +++++++++++++++++++++-
 src/VISU_I/VISU_TimeAnimation.h   |  3 +++
 2 files changed, 24 insertions(+), 1 deletion(-)

diff --git a/src/VISU_I/VISU_TimeAnimation.cxx b/src/VISU_I/VISU_TimeAnimation.cxx
index 0c24e562..e9a04037 100644
--- a/src/VISU_I/VISU_TimeAnimation.cxx
+++ b/src/VISU_I/VISU_TimeAnimation.cxx
@@ -61,6 +61,7 @@ VISU_TimeAnimation::VISU_TimeAnimation (_PTR(Study) theStudy,
     VISU::View3D_i* pView = dynamic_cast<VISU::View3D_i*>(GetServant(theView3D).in());
     SUIT_ViewWindow* aVW = pView->GetViewWindow();
     myView = VISU::GetViewWindow(aVW);
+    connect( myView, SIGNAL( destroyed() ), this, SLOT( onViewDeleted() ) );
   }
 
   myMaxVal = 0;
@@ -117,6 +118,9 @@ void VISU_TimeAnimation::addField (SALOMEDS::SObject_ptr theField)
 
 //************************************************************************
 void VISU_TimeAnimation::clearData(FieldData& theData) {
+  if( !myView )
+    return;
+
   theData.myTiming.clear();
   vtkRenderer* aRen = myView->getRenderer();
   if (!theData.myActors.empty()) {
@@ -355,6 +359,9 @@ void VISU_TimeAnimation::startAnimation() {
 
 //************************************************************************
 void VISU_TimeAnimation::nextFrame() {
+  if( !myView )
+    return;
+
   stopAnimation();
   if (myFrame < (myFieldsLst[0].myNbFrames-1)) {
     int i;
@@ -374,6 +381,8 @@ void VISU_TimeAnimation::nextFrame() {
 
 //************************************************************************
 void VISU_TimeAnimation::prevFrame() {
+  if( !myView )
+    return;
   stopAnimation();
   if (myFrame > 0) {
     int i;
@@ -393,6 +402,9 @@ void VISU_TimeAnimation::prevFrame() {
 
 //************************************************************************
 void VISU_TimeAnimation::firstFrame() {
+  if( !myView )
+    return;
+
   stopAnimation();
   int i;
   for (i = 0; i < getNbFields(); i++)
@@ -412,6 +424,9 @@ void VISU_TimeAnimation::firstFrame() {
 
 //************************************************************************
 void VISU_TimeAnimation::lastFrame() {
+  if( !myView )
+    return;
+
   stopAnimation();
   int i;
   for (i = 0; i < getNbFields(); i++)
@@ -431,7 +446,7 @@ void VISU_TimeAnimation::lastFrame() {
 //************************************************************************
 // For Batchmode using
 void VISU_TimeAnimation::gotoFrame(CORBA::Long theFrame) {
-  if ((theFrame < 0) || (theFrame > (getNbFrames()-1)))
+  if ((theFrame < 0) || (theFrame > (getNbFrames()-1)) || !myView )
     return;
   stopAnimation();
   qApp->lock();
@@ -825,6 +840,11 @@ void VISU_TimeAnimation::restoreFromStudy(_PTR(SObject) theField)
   myAnimEntry = aStr.c_str();
 }
 
+void VISU_TimeAnimation::onViewDeleted()
+{
+  myView = 0;
+}
+
 
 //========================================================================
 //========================================================================
diff --git a/src/VISU_I/VISU_TimeAnimation.h b/src/VISU_I/VISU_TimeAnimation.h
index 26cc764c..59bf57cb 100644
--- a/src/VISU_I/VISU_TimeAnimation.h
+++ b/src/VISU_I/VISU_TimeAnimation.h
@@ -129,6 +129,9 @@ class VISU_TimeAnimation: public QObject, public QThread
   void run();
   QString GenerateName();
 
+ private slots:
+   void onViewDeleted();
+   
  private:
   QString myLastError;
 
-- 
2.39.2