0026272: Visualization - provide a possibility to activate selection modes without opening local context

- picked or selected objects are now highlighted via owners instead of interactive objects;
- support methods for owners were added to AIS_InteractiveContext;
- dynamically highlighted owners are now displayed in immediate mode;
- selection without opening of local context is enabled by default;
- added "-local" key to vselmode command to enable selection in local context;
- selection filters are now completely supported in AIS_InteractiveContext;
- the idea of differencing of selected items onto current (in interactive context) and selected (local selection) was eliminated;
- all calls to "current" were replaced by calls to "selected" in terms of future local context removal;
- AIS_InteractiveObject::mySelectionMode was removed;
- now each selectable object can define own selection mode for "global" selection of the whole object;
- whole object selection mode is 0 by default for all standard interactive objects;
- immediate structures are now added to topmost and top layer lists;
- added support of drawing immediate structures in different layers;
- unused code for immediate mode was removed;
- vfeedback and vexport commands now produce correct output for raytrace mode.

src/SelectMgr/SelectMgr_EntityOwner.cxx

@@ -90,7 +90,11 @@ void SelectMgr_EntityOwner::HilightWithColor(const Handle(PrsMgr_PresentationMan
 {
   if( HasSelectable() ) {
     if( IsAutoHilight() )
-      PM->Color(mySelectable,aColor,aMode);
+    {
+      const Graphic3d_ZLayerId aLayerId = mySelectable->GlobalSelOwner().get() == this ?
+        Graphic3d_ZLayerId_Top : Graphic3d_ZLayerId_Topmost;
+      PM->Color(mySelectable,aColor,aMode, NULL, aLayerId);
+    }
     else
       mySelectable->HilightOwnerWithColor( PM, aColor, this );
   }

src/SelectMgr/SelectMgr_SelectableObject.cxx

@@ -55,12 +55,13 @@ static Standard_Integer Search (const SelectMgr_SequenceOfSelection& seq,
 // Purpose :
 //==================================================
 
-SelectMgr_SelectableObject::SelectMgr_SelectableObject( const PrsMgr_TypeOfPresentation3d aTypeOfPresentation3d):
-  PrsMgr_PresentableObject (aTypeOfPresentation3d),
+SelectMgr_SelectableObject::SelectMgr_SelectableObject (const PrsMgr_TypeOfPresentation3d aTypeOfPresentation3d)
+: PrsMgr_PresentableObject (aTypeOfPresentation3d),
   myDrawer                 (new Prs3d_Drawer()),
   myHilightDrawer          (new Prs3d_Drawer()),
   myAssemblyOwner          (NULL),
-  myAutoHilight            (Standard_True)
+  myAutoHilight            (Standard_True),
+  myGlobalSelMode          (0)
 {
   InitDefaultHilightAttributes (myHilightDrawer);
   myHilightDrawer->Link (myDrawer);
@@ -634,3 +635,25 @@ Bnd_Box SelectMgr_SelectableObject::BndBoxOfSelected (Handle(SelectMgr_IndexedMa
 
   return aBnd;
 }
+
+//=======================================================================
+//function : GlobalSelOwner
+//purpose  : Returns entity owner corresponding to selection of the object as a whole
+//=======================================================================
+Handle(SelectMgr_EntityOwner) SelectMgr_SelectableObject::GlobalSelOwner() const
+{
+   Handle(SelectMgr_EntityOwner) anOwner;
+
+  if (!HasSelection (myGlobalSelMode))
+    return anOwner;
+
+  const Handle(SelectMgr_Selection)& aGlobalSel = Selection (myGlobalSelMode);
+  if (aGlobalSel->IsEmpty())
+    return anOwner;
+
+  aGlobalSel->Init();
+  anOwner =
+    Handle(SelectMgr_EntityOwner)::DownCast (aGlobalSel->Sensitive()->BaseSensitive()->OwnerId());
+
+  return anOwner;
+}

src/SelectMgr/SelectMgr_SelectableObject.hxx

@@ -189,6 +189,12 @@ public:
   //! if they are a part of activated selection
   Standard_EXPORT Bnd_Box BndBoxOfSelected (Handle(SelectMgr_IndexedMapOfOwner)& theOwners);
 
+  //! Returns the mode for selection of object as a whole
+  inline Standard_Integer GlobalSelectionMode() const;
+
+  //! Returns the owner of mode for selection of object as a whole
+  Standard_EXPORT virtual Handle(SelectMgr_EntityOwner) GlobalSelOwner() const;
+
 
 friend class SelectMgr_SelectionManager;
 
@@ -200,6 +206,8 @@ protected:
   
   Standard_EXPORT SelectMgr_SelectableObject(const PrsMgr_TypeOfPresentation3d aTypeOfPresentation3d = PrsMgr_TOP_AllView);
 
+  inline void setGlobalSelMode (const Standard_Integer theMode);
+
   SelectMgr_SequenceOfSelection myselections;
   Handle(Prs3d_Drawer) myDrawer;
   Handle(Prs3d_Drawer) myHilightDrawer;
@@ -213,6 +221,7 @@ private:
   Standard_Boolean myAutoHilight;
   Handle(Prs3d_Presentation) mySelectionPrs;
   Handle(Prs3d_Presentation) myHilightPrs;
+  Standard_Integer myGlobalSelMode;
 
 
 };

src/SelectMgr/SelectMgr_SelectableObject.lxx

@@ -32,3 +32,21 @@ Attributes() const
 inline const Handle(Prs3d_Drawer)& SelectMgr_SelectableObject::
 HilightAttributes() const
 {return myHilightDrawer;}
+
+//=======================================================================
+//function : GlobalSelectionMode
+//purpose  :
+//=======================================================================
+inline Standard_Integer SelectMgr_SelectableObject::GlobalSelectionMode() const
+{
+  return myGlobalSelMode;
+}
+
+//=======================================================================
+//function : setGlobalSelMode
+//purpose  :
+//=======================================================================
+inline void SelectMgr_SelectableObject::setGlobalSelMode (const Standard_Integer theMode)
+{
+  myGlobalSelMode = theMode > 0 ? theMode : 0;
+}