From e903af847e601148fda1ef0c9b0d6f1faa322d79 Mon Sep 17 00:00:00 2001
From: mzn <mzn@opencascade.com>
Date: Fri, 26 Aug 2005 06:19:26 +0000
Subject: [PATCH] Fix for problem: broken reference objects after delete
 originals.

---
 src/SalomeApp/SalomeApp_Application.cxx | 65 ++++++++++++++++++++++++-
 src/SalomeApp/SalomeApp_Application.h   |  1 +
 src/SalomeApp/SalomeApp_DataObject.cxx  | 21 ++++++--
 3 files changed, 83 insertions(+), 4 deletions(-)

diff --git a/src/SalomeApp/SalomeApp_Application.cxx b/src/SalomeApp/SalomeApp_Application.cxx
index d36516b01..1dcf08d22 100644
--- a/src/SalomeApp/SalomeApp_Application.cxx
+++ b/src/SalomeApp/SalomeApp_Application.cxx
@@ -764,6 +764,33 @@ void SalomeApp_Application::onRefresh()
   updateObjectBrowser( true );
 }
 
+/*!Delete references.*/
+void SalomeApp_Application::onDeleteReferences()
+{
+  SALOME_ListIO aList;
+  SalomeApp_SelectionMgr* mgr = selectionMgr();
+  mgr->selectedObjects(aList);
+
+  if (aList.Extent() < 1) return;
+
+  SalomeApp_Study* aStudy = dynamic_cast<SalomeApp_Study*>(activeStudy());
+  _PTR(Study) aStudyDS = aStudy->studyDS();
+  _PTR(StudyBuilder) aStudyBuilder = aStudyDS->NewBuilder();
+  _PTR(SObject) anObj;
+  
+  for ( SALOME_ListIteratorOfListIO it( aList ); it.More(); it.Next() )
+    {
+      if ( it.Value()->hasEntry() )
+	{
+	  _PTR(SObject) aSObject = aStudyDS->FindObjectID( it.Value()->getEntry() );
+	  if ( aSObject->ReferencedObject(anObj) )
+	    aStudyBuilder->RemoveReference(aSObject);
+	}
+    }
+
+  updateObjectBrowser();
+}
+
 /*!Private SLOT. */
 void SalomeApp_Application::onOpenWith()
 {
@@ -1942,10 +1969,45 @@ void SalomeApp_Application::contextMenuPopup( const QString& type, QPopupMenu* t
   thePopup->insertSeparator();
   thePopup->insertItem( tr( "MEN_REFRESH" ), this, SLOT( onRefresh() ) );
 
-  // "Activate module" item should appear only if it's necessary
+  // Get selected objects
   SALOME_ListIO aList;
   SalomeApp_SelectionMgr* mgr = selectionMgr();
   mgr->selectedObjects(aList);
+
+  // "Delete reference" item should appear only for invalid references
+  
+  // Check if selected objects is invalid references
+  bool isInvalidRefs = true;
+  
+  if ( aList.Extent() < 1 )
+    isInvalidRefs = false;
+  
+  if ( isInvalidRefs )
+    {
+      SalomeApp_Study* aStudy = dynamic_cast<SalomeApp_Study*>(activeStudy());
+      _PTR(Study) aStudyDS = aStudy->studyDS();
+      _PTR(SObject) anObj;
+      
+      for ( SALOME_ListIteratorOfListIO it( aList ); it.More() && isInvalidRefs; it.Next() )
+	{
+	  if ( it.Value()->hasEntry() )
+	    {
+	      _PTR(SObject) aSObject = aStudyDS->FindObjectID( it.Value()->getEntry() );
+	      if ( aSObject->ReferencedObject(anObj) == false || !QString(anObj->GetIOR().c_str()).isEmpty() )
+		isInvalidRefs = false;
+	    }
+	}
+    }
+  
+  // Add "Delete refrence" item to popup
+  if ( isInvalidRefs )
+    {
+      thePopup->insertSeparator();
+      thePopup->insertItem( tr( "MEN_DELETE_REFERENCE" ), this, SLOT( onDeleteReferences() ) );
+      return;
+    }
+
+  // "Activate module" item should appear only if it's necessary
   if (aList.Extent() != 1)
     return;
   Handle(SALOME_InteractiveObject) aIObj = aList.First();
@@ -1955,6 +2017,7 @@ void SalomeApp_Application::contextMenuPopup( const QString& type, QPopupMenu* t
   if (currentModule && currentModule->moduleName() == aModuleTitle)
     return;
   thePopup->insertItem( tr( "MEN_OPENWITH" ), this, SLOT( onOpenWith() ) );
+  
 }
 
 /*!Update obect browser*/
diff --git a/src/SalomeApp/SalomeApp_Application.h b/src/SalomeApp/SalomeApp_Application.h
index 43fa56db2..969d54890 100644
--- a/src/SalomeApp/SalomeApp_Application.h
+++ b/src/SalomeApp/SalomeApp_Application.h
@@ -130,6 +130,7 @@ public slots:
 private slots:
   void                                onSelection();
   void                                onRefresh();
+  void                                onDeleteReferences();
 
 protected:
   virtual void                        createActions();
diff --git a/src/SalomeApp/SalomeApp_DataObject.cxx b/src/SalomeApp/SalomeApp_DataObject.cxx
index 235115a12..d04114d3e 100644
--- a/src/SalomeApp/SalomeApp_DataObject.cxx
+++ b/src/SalomeApp/SalomeApp_DataObject.cxx
@@ -113,7 +113,12 @@ QString SalomeApp_DataObject::name() const
   }
 
   if ( isReference() )
-    str = QString( "* " ) + str;
+    {
+      if ( !(text(CT_IOR).isEmpty()) )
+	str = QString( "* " ) + str;
+      else
+	str = QString( "<Invalid Reference>" );
+    }
 
   return str;
 }
@@ -181,7 +186,12 @@ QColor SalomeApp_DataObject::color( const ColorRole cr ) const
   {
   case Text:
     if ( isReference() )
-      clr = QColor( 255, 0, 0 );
+      {
+	if ( !(text(CT_IOR).isEmpty()) )
+	  clr = QColor( 255, 0, 0 );
+	else
+	  clr = QColor( 200, 200, 200 );
+      }
     else if ( myObject )
     {
       _PTR(GenericAttribute) anAttr;
@@ -194,7 +204,12 @@ QColor SalomeApp_DataObject::color( const ColorRole cr ) const
     break;
   case Highlight:
     if ( isReference() )
-      clr = QColor( 255, 0, 0 );
+      {
+	if ( !(text(CT_IOR).isEmpty()) )
+	  clr = QColor( 255, 0, 0 );
+	else
+	  clr = QColor( 200, 200, 200 );
+      }
     break;
   case HighlightedText:
     if ( isReference() )
-- 
2.39.2