Fix bug 17655: 'Show' and 'Display only' don't work on Mesh root object.

diff --git a/src/SMESHGUI/SMESHGUI_VTKUtils.cxx b/src/SMESHGUI/SMESHGUI_VTKUtils.cxx
index 03cc706615dfdab6cff44a44ac05a575652beaf8..15ada5033a7035168a5a02d2e807987eaeb363b3 100644 (file)
--- a/src/SMESHGUI/SMESHGUI_VTKUtils.cxx
+++ b/src/SMESHGUI/SMESHGUI_VTKUtils.cxx
@@ -271,14 +271,14 @@ namespace SMESH {
            CORBA::String_var aVal = anIOR->Value().c_str();
            CORBA::Object_var anObj = app->orb()->string_to_object( aVal.in() );
            if(!CORBA::is_nil(anObj)){
-             //Try narrow to SMESH_Mesh interafce
+             //Try narrow to SMESH_Mesh interface
              SMESH::SMESH_Mesh_var aMesh = SMESH::SMESH_Mesh::_narrow(anObj);
              if(!aMesh->_is_nil()){
                aVisualObj.reset(new SMESH_MeshObj(aMesh));
                TVisualObjCont::value_type aValue(aKey,aVisualObj);
                VISUAL_OBJ_CONT.insert(aValue);
              }
-             //Try narrow to SMESH_Group interafce
+             //Try narrow to SMESH_Group interface
              SMESH::SMESH_GroupBase_var aGroup = SMESH::SMESH_GroupBase::_narrow(anObj);
              if(!aGroup->_is_nil()){
                _PTR(SObject) aFatherSObj = aSObj->GetFather();
@@ -293,7 +293,7 @@ namespace SMESH {
                  VISUAL_OBJ_CONT.insert(aValue);
                }
              }
-             //Try narrow to SMESH_subMesh interafce
+             //Try narrow to SMESH_subMesh interface
              SMESH::SMESH_subMesh_var aSubMesh = SMESH::SMESH_subMesh::_narrow(anObj);
              if(!aSubMesh->_is_nil()){
                _PTR(SObject) aFatherSObj = aSObj->GetFather();
@@ -654,15 +654,20 @@ namespace SMESH {
   bool UpdateView(SUIT_ViewWindow *theWnd, EDisplaing theAction, const char* theEntry)
   {
     bool OK = false;
-    if(SVTK_ViewWindow* aViewWnd = GetVtkViewWindow(theWnd)) {
+    SVTK_ViewWindow* aViewWnd = GetVtkViewWindow(theWnd);
+    if (!aViewWnd)
+      return OK;
+
+    {
       OK = true;
       vtkRenderer *aRenderer = aViewWnd->getRenderer();
       vtkActorCollection *aCollection = aRenderer->GetActors();
       aCollection->InitTraversal();
-      switch(theAction) {
+
+      switch (theAction) {
       case eDisplayAll: {
-       while(vtkActor *anAct = aCollection->GetNextActor()){
-         if(SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>(anAct)){
+       while (vtkActor *anAct = aCollection->GetNextActor()) {
+         if (SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>(anAct)) {
            anActor->SetVisibility(true);
          }
        }
@@ -670,15 +675,15 @@ namespace SMESH {
       }
       case eDisplayOnly:
       case eEraseAll: {
-       while(vtkActor *anAct = aCollection->GetNextActor()){
-         if(SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>(anAct)){
+       while (vtkActor *anAct = aCollection->GetNextActor()) {
+         if (SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>(anAct)) {
            anActor->SetVisibility(false);
          }
        }
       }
       default: {
-       if(SMESH_Actor *anActor = FindActorByEntry(theWnd,theEntry)) {
-         switch(theAction) {
+       if (SMESH_Actor *anActor = FindActorByEntry(theWnd,theEntry)) {
+         switch (theAction) {
            case eDisplay:
            case eDisplayOnly:
              anActor->SetVisibility(true);
@@ -689,21 +694,27 @@ namespace SMESH {
              break;
          }
        } else {
-         switch(theAction){
+         switch (theAction) {
          case eDisplay:
-         case eDisplayOnly:{
-           SalomeApp_Study* aStudy = dynamic_cast<SalomeApp_Study*>( theWnd->getViewManager()->study() );
-           _PTR(Study) aDocument = aStudy->studyDS();
-           if((anActor = CreateActor(aDocument,theEntry,true))) {
-              bool needFitAll = noSmeshActors(theWnd); // fit for the first object only
-             DisplayActor(theWnd,anActor);
-             // FitAll(); - PAL16770(Display of a group performs an automatic fit all)
-              if ( needFitAll ) FitAll();
-           } else {
-              OK = false;
+         case eDisplayOnly:
+            {
+              SalomeApp_Study* aStudy = dynamic_cast<SalomeApp_Study*>(theWnd->getViewManager()->study());
+              _PTR(Study) aDocument = aStudy->studyDS();
+              // Pass non-visual objects (hypotheses, etc.), return true in this case
+              CORBA::Long anId = aDocument->StudyId();
+              if (TVisualObjPtr aVisualObj = GetVisualObj(anId,theEntry))
+              {
+                if ((anActor = CreateActor(aDocument,theEntry,true))) {
+                  bool needFitAll = noSmeshActors(theWnd); // fit for the first object only
+                  DisplayActor(theWnd,anActor);
+                  // FitAll(); - PAL16770(Display of a group performs an automatic fit all)
+                  if (needFitAll) FitAll();
+                } else {
+                  OK = false;
+                }
+              }
+              break;
             }
-           break;
-         }
          }
        }
       }