From b8ddb1330cad42ad5381912dd267d1e39182daae Mon Sep 17 00:00:00 2001
From: vsv <vsv@opencascade.com>
Date: Fri, 20 Dec 2019 15:53:23 +0300
Subject: [PATCH] Define canBreakLink parameter

---
 src/SMESHGUI/SMESHGUI.cxx           |  2 +-
 src/SMESHGUI/SMESHGUI_Selection.cxx | 15 +++++++++++++++
 src/SMESHGUI/SMESHGUI_Selection.h   |  1 +
 3 files changed, 17 insertions(+), 1 deletion(-)

diff --git a/src/SMESHGUI/SMESHGUI.cxx b/src/SMESHGUI/SMESHGUI.cxx
index 4a612b59d..5a3747d0c 100644
--- a/src/SMESHGUI/SMESHGUI.cxx
+++ b/src/SMESHGUI/SMESHGUI.cxx
@@ -4888,7 +4888,7 @@ void SMESHGUI::initialize( CAM_Application* app )
   popupMgr()->insert( separator(), -1, -1 );
 
   popupMgr()->insert( action( SMESHOp::OpBreakLink), -1, -1 );
-  popupMgr()->setRule( action( SMESHOp::OpBreakLink), "$component={'SHAPERSTUDY'} and client='ObjectBrowser'", QtxPopupMgr::VisibleRule );
+  popupMgr()->setRule( action( SMESHOp::OpBreakLink), "$component={'SHAPERSTUDY'} and client='ObjectBrowser' and canBreakLink", QtxPopupMgr::VisibleRule );
 
   connect( application(), SIGNAL( viewManagerActivated( SUIT_ViewManager* ) ),
            this, SLOT( onViewManagerActivated( SUIT_ViewManager* ) ) );
diff --git a/src/SMESHGUI/SMESHGUI_Selection.cxx b/src/SMESHGUI/SMESHGUI_Selection.cxx
index d0cd5c4dc..d4b79054e 100644
--- a/src/SMESHGUI/SMESHGUI_Selection.cxx
+++ b/src/SMESHGUI/SMESHGUI_Selection.cxx
@@ -140,6 +140,7 @@ QVariant SMESHGUI_Selection::parameter( const int ind, const QString& p ) const
   else if ( p=="nbChildren")            val = QVariant( nbChildren( ind ) );
   else if ( p=="isContainer")           val = QVariant( isContainer( ind ) );
   else if ( p=="guiState")              val = QVariant( guiState() );
+  else if ( p=="canBreakLink")          val = QVariant( canBreakLink(ind) );
 
   if ( val.isValid() )
     return val;
@@ -605,6 +606,20 @@ bool SMESHGUI_Selection::hasGeomReference( int ind ) const
   return false;
 }
 
+//=======================================================================
+//function : canBreakLink
+//purpose  : returns true if selected object is a Shaper object and it can break link
+//=======================================================================
+
+bool SMESHGUI_Selection::canBreakLink( int ind ) const
+{
+  if ( ind >= 0 && ind < myTypes.count()) {
+    _PTR(SObject) so = SMESH::getStudy()->FindObjectID( entry( ind ).toUtf8().data() );
+    return true;
+  }
+  return false;
+}
+
 //=======================================================================
 //function : isEditableHyp
 //purpose  : 
diff --git a/src/SMESHGUI/SMESHGUI_Selection.h b/src/SMESHGUI/SMESHGUI_Selection.h
index 7ebf07a26..6ca2c0cb1 100644
--- a/src/SMESHGUI/SMESHGUI_Selection.h
+++ b/src/SMESHGUI/SMESHGUI_Selection.h
@@ -61,6 +61,7 @@ public:
   virtual bool            hasGeomReference( int ) const;
   virtual bool            isEditableHyp( int ) const;
   virtual bool            isVisible( int ) const;
+  virtual bool            canBreakLink(int) const;
 
   virtual bool            isQuadratic( int ) const;
   virtual QString         quadratic2DMode( int ) const;
-- 
2.39.2