From d5bf6747e1c71cec6adb569fe3200db8daec97cf Mon Sep 17 00:00:00 2001
From: apo <apo@opencascade.com>
Date: Mon, 17 Oct 2005 07:03:13 +0000
Subject: [PATCH] Fix on Bug GVIEW10305  Sigsegv after closing document Now,
 myRemoveActorsFromRendererSignal is called before VISU::Prs3d destruction

---
 src/OBJECT/VISU_Actor.cxx      | 55 +++++++++++++++++++++-------------
 src/OBJECT/VISU_Actor.h        |  1 +
 src/OBJECT/VISU_ActorFactory.h |  8 ++++-
 3 files changed, 42 insertions(+), 22 deletions(-)

diff --git a/src/OBJECT/VISU_Actor.cxx b/src/OBJECT/VISU_Actor.cxx
index d52ead3f..90c4e50c 100644
--- a/src/OBJECT/VISU_Actor.cxx
+++ b/src/OBJECT/VISU_Actor.cxx
@@ -72,6 +72,7 @@ static int MYDEBUG = 1;
 static int MYDEBUG = 0;
 #endif
 
+//#define ENABLE_ANNOTATION
 
 //----------------------------------------------------------------------------
 vtkStandardNewMacro(VISU_Actor);
@@ -100,9 +101,10 @@ VISU_Actor
   SetShrinkFactor();  
 
   myAnnotationMapper->Delete();
-  myAnnotationActor->Delete();
   myAnnotationActor->SetMapper(myAnnotationMapper.GetPointer());
-  myAnnotationActor.GetPointer()->SetVisibility(0);
+
+  myAnnotationActor->Delete();
+  myAnnotationActor->SetVisibility(0);
 }
 
 //----------------------------------------------------------------------------
@@ -176,6 +178,16 @@ void
 VISU_Actor
 ::SetFactory(VISU::TActorFactory* theActorFactory)
 { 
+  using namespace VISU;
+
+  if(myActorFactory == theActorFactory)
+    return;
+  
+  if(theActorFactory)
+    myDestroySignal.connect(boost::bind(&TActorFactory::RemoveActor,
+					theActorFactory,
+					_1));
+
   myActorFactory = theActorFactory;
 }
 
@@ -375,7 +387,7 @@ VISU_Actor
 {
   theRenderer->RemoveActor(myAnnotationActor.GetPointer());
   Superclass::RemoveFromRender(theRenderer); 
-  myActorFactory->RemoveActor(this);
+  myDestroySignal(this);
 }
 
 //----------------------------------------------------------------------------
@@ -490,6 +502,9 @@ VISU_Actor
 				       theInteractorStyle,
 				       theSelectionEvent,
 				       theIsHighlight);
+#ifndef ENABLE_ANNOTATION
+  return aRet;
+#endif	  
   //
   myAnnotationActor->SetVisibility(0);
   if(theIsHighlight){
@@ -532,7 +547,6 @@ VISU_Actor
 	    myAnnotationMapper->SetInput(aString.c_str());
 	    
 	    myAnnotationActor->SetVisibility(1);
-	  
 	    return true;
 	  }
 	}
@@ -553,25 +567,24 @@ VISU_Actor
       if(aVtkId >= 0  && theSelector->IsValid(this,aVtkId,true) && hasIO()){
 	vtkIdType anObjId = GetNodeObjId( aVtkId );
 	if(float* aCoord = GetNodeCoord(anObjId)){
-	    // Display coordinates
-	    float aWorldCoord[4] = {aCoord[0], aCoord[1], aCoord[2], 1.0};
-	    aRenderer->SetWorldPoint(aWorldCoord);
-	    aRenderer->WorldToDisplay();
-	    float aSelectionPoint[3];
-	    aRenderer->GetDisplayPoint(aSelectionPoint);
-	    myAnnotationActor->SetPosition(aSelectionPoint);
-	    //
-	    // To prepare the annotation text
-	    std::ostringstream aStr;
-	    aStr<<"Node ID: "<< anObjId;
-	    std::string aString = aStr.str();
-	    myAnnotationMapper->SetInput(aString.c_str());
-	    
-	    myAnnotationActor->SetVisibility(1);
+	  // Display coordinates
+	  float aWorldCoord[4] = {aCoord[0], aCoord[1], aCoord[2], 1.0};
+	  aRenderer->SetWorldPoint(aWorldCoord);
+	  aRenderer->WorldToDisplay();
+	  float aSelectionPoint[3];
+	  aRenderer->GetDisplayPoint(aSelectionPoint);
+	  myAnnotationActor->SetPosition(aSelectionPoint);
+	  //
+	  // To prepare the annotation text
+	  std::ostringstream aStr;
+	  aStr<<"Node ID: "<< anObjId;
+	  std::string aString = aStr.str();
+	  myAnnotationMapper->SetInput(aString.c_str());
 	  
-	    return true;
-	  }
+	  myAnnotationActor->SetVisibility(1);
+	  return true;
 	}
+      }
       break;
     }
     case EdgeOfCellSelection:
diff --git a/src/OBJECT/VISU_Actor.h b/src/OBJECT/VISU_Actor.h
index 75cfea0f..8a6c5de0 100644
--- a/src/OBJECT/VISU_Actor.h
+++ b/src/OBJECT/VISU_Actor.h
@@ -242,6 +242,7 @@ class VTKOCC_EXPORT VISU_Actor :
   vtkSmartPointer<vtkDataSetMapper> myMapper;
 
   VISU::TActorFactory* myActorFactory;
+  boost::signal1<void,VISU_Actor*> myDestroySignal;
 
   vtkSmartPointer<VTKViewer_ShrinkFilter> myShrinkFilter;
   bool myIsShrinkable;
diff --git a/src/OBJECT/VISU_ActorFactory.h b/src/OBJECT/VISU_ActorFactory.h
index 2cda6668..d594f5b8 100644
--- a/src/OBJECT/VISU_ActorFactory.h
+++ b/src/OBJECT/VISU_ActorFactory.h
@@ -29,13 +29,19 @@
 #ifndef VISU_ACTOR_FACTORY_H
 #define VISU_ACTOR_FACTORY_H
 
+#include <boost/signals/trackable.hpp>
+
 class VISU_Actor;
 
 //----------------------------------------------------------------------------
 namespace VISU 
 { 
-  struct TActorFactory
+  struct TActorFactory: public virtual boost::bsignals::trackable
   {
+    virtual 
+    ~TActorFactory()
+    {}
+
     virtual 
     void
     UpdateActor(VISU_Actor* theActor) = 0;
-- 
2.39.2