From 02c6b21ccb91777b0acfa821e757dbaef451d623 Mon Sep 17 00:00:00 2001
From: apo <apo@opencascade.com>
Date: Tue, 13 Sep 2005 04:08:49 +0000
Subject: [PATCH] 1. Port from QValueStack to std::stack. 2. To provide correct
 memory menagement

---
 src/SVTK/SVTK_RenderWindowInteractor.cxx | 25 ++++++++++++++++++++----
 src/SVTK/SVTK_RenderWindowInteractor.h   |  8 ++++----
 2 files changed, 25 insertions(+), 8 deletions(-)

diff --git a/src/SVTK/SVTK_RenderWindowInteractor.cxx b/src/SVTK/SVTK_RenderWindowInteractor.cxx
index 709505d89..f371c025d 100644
--- a/src/SVTK/SVTK_RenderWindowInteractor.cxx
+++ b/src/SVTK/SVTK_RenderWindowInteractor.cxx
@@ -21,8 +21,8 @@
 //
 //
 //
-//  File   : VTKViewer_RenderWindowInteractor.cxx
-//  Author : Nicolas REJNERI
+//  File   : 
+//  Author : 
 //  Module : SALOME
 //  $Header$
 
@@ -405,6 +405,19 @@ SVTK_RenderWindowInteractor
 ::~SVTK_RenderWindowInteractor() 
 {
   if(MYDEBUG) INFOS("~SVTK_RenderWindowInteractor() - "<<this);
+
+  // Sequence of the destruction call are fixed and should be changed.
+  // vtkRenderWindow instance should be destroyed after all vtkRenderer's
+  GetDevice()->SetInteractorStyle(NULL); 
+  while(!myInteractorStyles.empty()){
+    const PInteractorStyle& aStyle = myInteractorStyles.top();
+    aStyle->SetInteractor(NULL);
+    myInteractorStyles.pop();
+  }
+
+  SetRenderer(NULL);
+
+  GetDevice()->SetRenderWindow(NULL);
 }
 
 vtkRenderWindow* 
@@ -439,7 +452,7 @@ SVTK_RenderWindowInteractor
 
   if(GetRenderer()){
     myRenderWindow->RemoveRenderer(getRenderer());
-    theRenderer->SetInteractor(NULL);
+    myRenderer->SetInteractor(NULL);
   }
 
   myRenderer = theRenderer;
@@ -488,7 +501,7 @@ vtkInteractorStyle*
 SVTK_RenderWindowInteractor
 ::GetInteractorStyle()
 {
-  return myInteractorStyles.isEmpty() ? 0 : myInteractorStyles.top().GetPointer();
+  return myInteractorStyles.empty() ? 0 : myInteractorStyles.top().GetPointer();
 }
 
 
@@ -616,6 +629,10 @@ SVTK_RenderWindowInteractor
 ::wheelEvent( QWheelEvent* event )
 {
   QVTK_RenderWindowInteractor::wheelEvent(event);
+  if(event->delta() > 0)
+    GetDevice()->InvokeEvent(SVTK::ZoomInEvent,NULL);
+  else
+    GetDevice()->InvokeEvent(SVTK::ZoomOutEvent,NULL);
 #ifdef GENERATE_SUIT_EVENTS
   emit WheelMoved( event );
 #endif
diff --git a/src/SVTK/SVTK_RenderWindowInteractor.h b/src/SVTK/SVTK_RenderWindowInteractor.h
index 146be1081..e36bfd23d 100644
--- a/src/SVTK/SVTK_RenderWindowInteractor.h
+++ b/src/SVTK/SVTK_RenderWindowInteractor.h
@@ -32,10 +32,9 @@
 #include "SVTK.h"
 #include "SVTK_Selection.h"
 
-#include <qwidget.h>
-#include <qvaluestack.h>
-
 #include <vtkSmartPointer.h>
+#include <qwidget.h>
+#include <stack>
 
 class vtkGenericRenderWindowInteractor;
 class vtkInteractorStyle;
@@ -202,7 +201,8 @@ class SVTK_EXPORT SVTK_RenderWindowInteractor: public QVTK_RenderWindowInteracto
   vtkSmartPointer<vtkRenderWindow> myRenderWindow;
 
   typedef vtkSmartPointer<vtkInteractorStyle> PInteractorStyle;
-  QValueStack<PInteractorStyle> myInteractorStyles;
+  typedef std::stack<PInteractorStyle> TInteractorStyles;
+  TInteractorStyles myInteractorStyles;
 };
 
 
-- 
2.39.2