From d8b45274cd67177427f3480f2ce4e9345d83612f Mon Sep 17 00:00:00 2001
From: dsarrut <dsarrut>
Date: Thu, 7 Apr 2011 08:51:20 +0000
Subject: [PATCH] Romulo - Solved bug 295   + Removed the "destroyed" flag   +
 List/Tree widget is now cleared in the destructor   + Destruction order was
 the cause for the crash - Made destructors virtual in the base classes   + It
 could contribute to memory leaks   + Other class hierarchies should be
 checked as well

---
 vv/vvToolBase.h                  |  2 ++
 vv/vvToolBaseBase.h              |  3 +++
 vv/vvToolStructureSetManager.cxx | 26 +++++++++++---------------
 vv/vvToolStructureSetManager.h   |  3 +--
 vv/vvToolWidgetBase.h            |  2 +-
 5 files changed, 18 insertions(+), 18 deletions(-)

diff --git a/vv/vvToolBase.h b/vv/vvToolBase.h
index 2abd2a6..b4a6cd8 100644
--- a/vv/vvToolBase.h
+++ b/vv/vvToolBase.h
@@ -27,6 +27,8 @@ template<class ToolType>
 class vvToolBase : public vvToolBaseBase {
 public:
   vvToolBase(vvMainWindowBase * m);
+  virtual ~vvToolBase() {};
+  
   static void Initialize();  // can't be virtual, must be overwritten
 
   static void SetToolName(QString n) { vvToolCreator<ToolType>::GetInstance()->mToolName = n; }
diff --git a/vv/vvToolBaseBase.h b/vv/vvToolBaseBase.h
index 74cd25b..ffd169b 100644
--- a/vv/vvToolBaseBase.h
+++ b/vv/vvToolBaseBase.h
@@ -23,6 +23,9 @@
 
 //------------------------------------------------------------------------------
 class vvToolBaseBase {
+public:
+  virtual ~vvToolBaseBase() {};
+  
 protected:
   vvMainWindowBase * mMainWindowBase;
 };
diff --git a/vv/vvToolStructureSetManager.cxx b/vv/vvToolStructureSetManager.cxx
index c9e3368..fd09b11 100644
--- a/vv/vvToolStructureSetManager.cxx
+++ b/vv/vvToolStructureSetManager.cxx
@@ -27,7 +27,8 @@
 #include <QFileDialog>
 #include <QMessageBox>
 #include <QColorDialog>
-
+#include <QAbstractEventDispatcher>
+ 
 // vtk
 #include <vtkLookupTable.h>
 #include <vtkRenderWindow.h>
@@ -41,7 +42,6 @@ ADD_TOOL(vvToolStructureSetManager);
 int vvToolStructureSetManager::m_NumberOfTool = 0;
 std::vector<vvSlicerManager*> vvToolStructureSetManager::mListOfInputs;
 std::map<vvSlicerManager*, vvToolStructureSetManager*> vvToolStructureSetManager::mListOfOpenTool;
-bool vvToolStructureSetManager::mDestroyed = false;
 
 //------------------------------------------------------------------------------
 vvToolStructureSetManager::vvToolStructureSetManager(vvMainWindowBase * parent, 
@@ -100,9 +100,15 @@ vvToolStructureSetManager::vvToolStructureSetManager(vvMainWindowBase * parent,
 //------------------------------------------------------------------------------
 vvToolStructureSetManager::~vvToolStructureSetManager()
 {
-  //std::cout << "vvToolStructureSetManager::~vvToolStructureSetManager()" << std::endl;
   m_NumberOfTool--;
-  mDestroyed=true;
+  
+  // clearing the list at this point avoids
+  // segfaulting due to events being dispatched
+  // after object destruction
+  mTreeWidgetList.clear();
+  mTree->clearSelection();
+
+  //std::cout << "vvToolStructureSetManager::~vvToolStructureSetManager()" << std::endl;
 }
 //------------------------------------------------------------------------------
 
@@ -362,6 +368,7 @@ void vvToolStructureSetManager::apply()
 bool vvToolStructureSetManager::close()
 {
   //std::cout << "vvToolStructureSetManager::close()" << std::endl;
+
   return vvToolWidgetBase::close();
 }
 //------------------------------------------------------------------------------
@@ -371,7 +378,6 @@ bool vvToolStructureSetManager::close()
 void vvToolStructureSetManager::closeEvent(QCloseEvent *event) 
 {
   //std::cout << "vvToolStructureSetManager::closeEvent()" << std::endl;
-  disconnect(mTree, SIGNAL(itemSelectionChanged()));
 
   std::vector<vvSlicerManager*>::iterator iter = std::find(mListOfInputs.begin(), mListOfInputs.end(), mCurrentSlicerManager);
   if (iter != mListOfInputs.end()) mListOfInputs.erase(iter);
@@ -403,16 +409,6 @@ void vvToolStructureSetManager::closeEvent(QCloseEvent *event)
 //------------------------------------------------------------------------------
 void vvToolStructureSetManager::SelectedItemChangedInTree() {
   
-  // ATTENTION:
-  //  RP - 05/04/2011
-  //  Horrible solution for the problem of triggering this event
-  // after the window has been closed and the object instance 
-  // has been destroyed. I couldn't find the place where the
-  // window is destroyed, though.
-  //
-  if (mDestroyed)
-    return;
-  
   // Search which roi is selected
   QList<QTreeWidgetItem *> l = mTree->selectedItems();
   if (l.size() == 0) {
diff --git a/vv/vvToolStructureSetManager.h b/vv/vvToolStructureSetManager.h
index 89af5ab..5bbc715 100644
--- a/vv/vvToolStructureSetManager.h
+++ b/vv/vvToolStructureSetManager.h
@@ -39,7 +39,7 @@ class vvToolStructureSetManager:
   Q_OBJECT
   public:
   vvToolStructureSetManager(vvMainWindowBase* parent=0, Qt::WindowFlags f=0, vvSlicerManager * c = NULL);
-  ~vvToolStructureSetManager();
+  virtual ~vvToolStructureSetManager();
 
   static void Initialize();
   virtual void InputIsSelected(vvSlicerManager *m);
@@ -95,7 +95,6 @@ protected:
   virtual void CheckInputList(std::vector<vvSlicerManager*> & l, int & index);
   static std::vector<vvSlicerManager*> mListOfInputs;
   static std::map<vvSlicerManager*, vvToolStructureSetManager*> mListOfOpenTool;
-  static bool mDestroyed;
   static int m_NumberOfTool;
   bool MustOpenDialogWhenCreated;
  
diff --git a/vv/vvToolWidgetBase.h b/vv/vvToolWidgetBase.h
index 0951fa1..2c3ddd9 100644
--- a/vv/vvToolWidgetBase.h
+++ b/vv/vvToolWidgetBase.h
@@ -37,7 +37,7 @@ class vvToolWidgetBase:
   public:
 
   vvToolWidgetBase(vvMainWindowBase * parent=0, Qt::WindowFlags f=Qt::Dialog, bool initialize=true); // default is a dialog
-  ~vvToolWidgetBase();
+  virtual ~vvToolWidgetBase();
 
   virtual void InputIsSelected(vvSlicerManager *m);
   virtual void InputIsSelected(std::vector<vvSlicerManager*> & l);
-- 
2.47.1