src/SMESHGUI/SMESHGUI_VTKUtils.cxx

   1 // Copyright (C) 2007-2016  CEA/DEN, EDF R&D, OPEN CASCADE
   2 //
   3 // Copyright (C) 2003-2007  OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
   4 // CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
   5 //
   6 // This library is free software; you can redistribute it and/or
   7 // modify it under the terms of the GNU Lesser General Public
   8 // License as published by the Free Software Foundation; either
   9 // version 2.1 of the License, or (at your option) any later version.
  10 //
  11 // This library is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 // Lesser General Public License for more details.
  15 //
  16 // You should have received a copy of the GNU Lesser General Public
  17 // License along with this library; if not, write to the Free Software
  18 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  19 //
  20 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
  21 //
  22
  23 // SMESH SMESHGUI : GUI for SMESH component
  24 // File   : SMESHGUI_VTKUtils.cxx
  25 // Author : Open CASCADE S.A.S.
  26 // SMESH includes
  27 //
  28 #include "SMESHGUI_VTKUtils.h"
  29
  30 #include "SMESHGUI.h"
  31 #include "SMESHGUI_Filter.h"
  32 #include "SMESHGUI_Utils.h"
  33 #include "SMDS_Mesh.hxx"
  34 #include "SMESH_Actor.h"
  35 #include "SMESH_ActorProps.h"
  36 #include "SMESH_ActorUtils.h"
  37 #include "SMESH_CellLabelActor.h"
  38 #include "SMESH_ControlsDef.hxx"
  39 #include "SMESH_NodeLabelActor.h"
  40 #include "SMESH_ObjectDef.h"
  41
  42 // SALOME GUI includes
  43 #include <SUIT_Desktop.h>
  44 #include <SUIT_Session.h>
  45 #include <SUIT_MessageBox.h>
  46 #include <SUIT_ViewManager.h>
  47 #include <SUIT_ResourceMgr.h>
  48
  49 #include <SALOME_ListIO.hxx>
  50
  51 #include <SVTK_Selector.h>
  52 #include <SVTK_ViewModel.h>
  53 #include <SVTK_ViewWindow.h>
  54
  55 #include <VTKViewer_Algorithm.h>
  56
  57 #include <LightApp_SelectionMgr.h>
  58 #include <SalomeApp_Application.h>
  59 #include <SalomeApp_Study.h>
  60
  61 // SALOME KERNEL includes
  62 #include <utilities.h>
  63
  64 // IDL includes
  65 #include <SALOMEconfig.h>
  66 #include CORBA_CLIENT_HEADER(SMESH_Mesh)
  67 #include CORBA_CLIENT_HEADER(SMESH_Group)
  68
  69 // VTK includes
  70 #include <vtkMath.h>
  71 #include <vtkRenderer.h>
  72 #include <vtkActorCollection.h>
  73 #include <vtkUnstructuredGrid.h>
  74
  75 // OCCT includes
  76 #include <Standard_ErrorHandler.hxx>
  77
  78 namespace SMESH
  79 {
  80   typedef std::map<TKeyOfVisualObj,TVisualObjPtr> TVisualObjCont;
  81   static TVisualObjCont VISUAL_OBJ_CONT;
  82
  83   //=============================================================================
  84   /*!
  85    * \brief Allocate some memory at construction and release it at destruction.
  86    * Is used to be able to continue working after mesh generation or visualization
  87    * break due to lack of memory
  88    */
  89   //=============================================================================
  90
  91   struct MemoryReserve
  92   {
  93     char* myBuf;
  94     MemoryReserve(): myBuf( new char[1024*1024*1] ){} // 1M
  95     void Free() { if (myBuf) { delete [] myBuf; myBuf = 0; }}
  96     ~MemoryReserve() { Free(); }
  97   };
  98   static MemoryReserve* theVISU_MemoryReserve = new MemoryReserve;
  99
 100   //================================================================================
 101   /*!
 102    * \brief Remove VisualObj and its actor from all views
 103    */
 104   //================================================================================
 105
 106   void RemoveVisualObjectWithActors( const char* theEntry, bool fromAllViews )
 107   {
 108     SalomeApp_Application* app = dynamic_cast<SalomeApp_Application*>(SUIT_Session::session()->activeApplication());
 109     if(!app)
 110       return;
 111     SalomeApp_Study* aStudy  = dynamic_cast<SalomeApp_Study*>(app->activeStudy());
 112     if(!aStudy)
 113       return;
 114     ViewManagerList aList;
 115
 116     if(fromAllViews) {
 117       app->viewManagers(SVTK_Viewer::Type() , aList);
 118     } else {
 119       SUIT_ViewManager* aVM = app->getViewManager(SVTK_Viewer::Type(), true);
 120       if(aVM)
 121         aList.append(aVM);
 122     }
 123     bool actorRemoved = false;
 124     ViewManagerList::ConstIterator it = aList.begin();
 125     SUIT_ViewManager* aViewManager = 0;
 126     for( ; it!=aList.end();it++) {
 127       aViewManager = *it;
 128       QVector<SUIT_ViewWindow*> views = aViewManager->getViews();
 129       for ( int iV = 0; iV < views.count(); ++iV ) {
 130         if ( SMESH_Actor* actor = FindActorByEntry( views[iV], theEntry)) {
 131           if(SVTK_ViewWindow* vtkWnd = GetVtkViewWindow(views[iV])) {
 132             vtkWnd->RemoveActor(actor);
 133             actorRemoved = true;
 134           }
 135           actor->Delete();
 136         }
 137       }
 138     }
 139
 140     if (aViewManager ) {
 141       int aStudyId = aViewManager->study()->id();
 142       TVisualObjCont::key_type aKey(aStudyId,theEntry);
 143       TVisualObjCont::iterator anIter = VISUAL_OBJ_CONT.find(aKey);
 144       if(anIter != VISUAL_OBJ_CONT.end()) {
 145         // for unknown reason, object destructor is not called, so clear object manually
 146         anIter->second->GetUnstructuredGrid()->SetCells(0,0,0,0,0);
 147         anIter->second->GetUnstructuredGrid()->SetPoints(0);
 148       }
 149       VISUAL_OBJ_CONT.erase(aKey);
 150     }
 151
 152     if(actorRemoved)
 153       aStudy->setVisibilityState(theEntry, Qtx::HiddenState);
 154   }
 155   //================================================================================
 156   /*!
 157    * \brief Remove all VisualObjs and their actors from all views
 158    */
 159   //================================================================================
 160
 161   void RemoveAllObjectsWithActors()
 162   {
 163     SalomeApp_Application* app = dynamic_cast<SalomeApp_Application*>
 164       ( SUIT_Session::session()->activeApplication() );
 165     if (!app) return;
 166     ViewManagerList viewMgrs = app->viewManagers();
 167     for ( int iM = 0; iM < viewMgrs.count(); ++iM ) {
 168       SUIT_ViewManager* aViewManager = viewMgrs.at( iM );
 169       if ( aViewManager && aViewManager->getType() == SVTK_Viewer::Type()) {
 170         QVector<SUIT_ViewWindow*> views = aViewManager->getViews();
 171         for ( int iV = 0; iV < views.count(); ++iV ) {
 172           if(SVTK_ViewWindow* vtkWnd = GetVtkViewWindow(views[iV])) {
 173             vtkRenderer *aRenderer = vtkWnd->getRenderer();
 174             VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
 175             vtkActorCollection *actors = aCopy.GetActors();
 176             for (int i = 0; i < actors->GetNumberOfItems(); ++i ) {
 177               // size of actors changes inside the loop
 178               if (SMESH_Actor *actor = dynamic_cast<SMESH_Actor*>(actors->GetItemAsObject(i)))
 179               {
 180                 vtkWnd->RemoveActor(actor);
 181                 actor->Delete();
 182               }
 183             }
 184           }
 185         }
 186       }
 187     }
 188     TVisualObjCont::iterator anIter = VISUAL_OBJ_CONT.begin();
 189     for ( ; anIter != VISUAL_OBJ_CONT.end(); ++anIter ) {
 190       // for unknown reason, object destructor is not called, so clear object manually
 191       anIter->second->GetUnstructuredGrid()->SetCells(0,0,0,0,0);
 192       anIter->second->GetUnstructuredGrid()->SetPoints(0);
 193     }
 194     VISUAL_OBJ_CONT.clear();
 195   }
 196
 197   //================================================================================
 198   /*!
 199    * \brief Remove all VisualObjs of a study
 200    */
 201   //================================================================================
 202
 203   void RemoveVisuData(int studyID)
 204   {
 205     SalomeApp_Application* app = dynamic_cast<SalomeApp_Application*>
 206       ( SUIT_Session::session()->activeApplication() );
 207     if (!app) return;
 208     ViewManagerList viewMgrs = app->viewManagers();
 209     for ( int iM = 0; iM < viewMgrs.count(); ++iM ) {
 210       SUIT_ViewManager* aViewManager = viewMgrs.at( iM );
 211       if ( aViewManager && aViewManager->getType() == SVTK_Viewer::Type() &&
 212            aViewManager->study()->id() == studyID ) {
 213         QVector<SUIT_ViewWindow*> views = aViewManager->getViews();
 214         for ( int iV = 0; iV < views.count(); ++iV ) {
 215           if(SVTK_ViewWindow* vtkWnd = GetVtkViewWindow(views[iV])) {
 216             vtkRenderer *aRenderer = vtkWnd->getRenderer();
 217             VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
 218             vtkActorCollection *actors = aCopy.GetActors();
 219             for (int i = 0; i < actors->GetNumberOfItems(); ++i ) {
 220               // size of actors changes inside the loop
 221               if(SMESH_Actor *actor = dynamic_cast<SMESH_Actor*>(actors->GetItemAsObject(i)))
 222               {
 223                 vtkWnd->RemoveActor(actor);
 224                 actor->Delete();
 225               }
 226             }
 227           }
 228         }
 229       }
 230     }
 231     TVisualObjCont::iterator anIter = VISUAL_OBJ_CONT.begin();
 232     for ( ; anIter != VISUAL_OBJ_CONT.end(); ) {
 233       int curId = anIter->first.first;
 234       if ( curId == studyID ) {
 235         // for unknown reason, object destructor is not called, so clear object manually
 236         anIter->second->GetUnstructuredGrid()->SetCells(0,0,0,0,0);
 237         anIter->second->GetUnstructuredGrid()->SetPoints(0);
 238         VISUAL_OBJ_CONT.erase( anIter++ ); // anIter++ returns a copy of self before incrementing
 239       }
 240       else {
 241         anIter++;
 242       }
 243     }
 244   }
 245
 246   //================================================================================
 247   /*!
 248    * \brief Notify the user on problems during visualization
 249    */
 250   //================================================================================
 251
 252   void OnVisuException()
 253   {
 254     try {
 255       OCC_CATCH_SIGNALS;
 256       // PAL16774 (Crash after display of many groups). Salome sometimes crashes just
 257       // after or at showing this message, so we do an additional check of available memory
 258 //       char* buf = new char[100*1024];
 259 //       delete [] buf;
 260       SUIT_MessageBox::warning(SMESHGUI::desktop(), QObject::tr("SMESH_WRN_WARNING"),
 261                                QObject::tr("SMESH_VISU_PROBLEM"));
 262     } catch (...) {
 263       // no more memory at all: last resort
 264       MESSAGE_BEGIN ( "SMESHGUI_VTKUtils::OnVisuException(), exception even at showing a message!!!" <<
 265                       std::endl << "Try to remove all visual data..." );
 266       if (theVISU_MemoryReserve) {
 267         delete theVISU_MemoryReserve;
 268         theVISU_MemoryReserve = 0;
 269       }
 270       RemoveAllObjectsWithActors();
 271       SUIT_MessageBox::warning(SMESHGUI::desktop(), QObject::tr("SMESH_WRN_WARNING"),
 272                                QObject::tr("SMESH_VISU_PROBLEM_CLEAR"));
 273       MESSAGE_END ( "...done" );
 274     }
 275   }
 276   //================================================================================
 277   /*!
 278    * \brief Returns an updated visual object
 279    */
 280   //================================================================================
 281
 282   TVisualObjPtr GetVisualObj(int theStudyId, const char* theEntry, bool nulData){
 283     TVisualObjPtr aVisualObj;
 284     TVisualObjCont::key_type aKey(theStudyId,theEntry);
 285     try{
 286       OCC_CATCH_SIGNALS;
 287       TVisualObjCont::iterator anIter = VISUAL_OBJ_CONT.find(aKey);
 288       if(anIter != VISUAL_OBJ_CONT.end()){
 289         aVisualObj = anIter->second;
 290       }else{
 291         SalomeApp_Application* app =
 292           dynamic_cast<SalomeApp_Application*>( SMESHGUI::activeStudy()->application() );
 293         _PTR(Study) aStudy = SMESHGUI::activeStudy()->studyDS();
 294         _PTR(SObject) aSObj = aStudy->FindObjectID(theEntry);
 295         if(aSObj){
 296           _PTR(GenericAttribute) anAttr;
 297           if(aSObj->FindAttribute(anAttr,"AttributeIOR")){
 298             _PTR(AttributeIOR) anIOR = anAttr;
 299             CORBA::String_var aVal = anIOR->Value().c_str();
 300             CORBA::Object_var anObj = app->orb()->string_to_object( aVal.in() );
 301             if(!CORBA::is_nil(anObj)){
 302               //Try narrow to SMESH_Mesh interface
 303               SMESH::SMESH_Mesh_var aMesh = SMESH::SMESH_Mesh::_narrow(anObj);
 304               if(!aMesh->_is_nil()){
 305                 aVisualObj.reset(new SMESH_MeshObj(aMesh));
 306                 TVisualObjCont::value_type aValue(aKey,aVisualObj);
 307                 VISUAL_OBJ_CONT.insert(aValue);
 308               }
 309               //Try narrow to SMESH_Group interface
 310               SMESH::SMESH_GroupBase_var aGroup = SMESH::SMESH_GroupBase::_narrow(anObj);
 311               if(!aGroup->_is_nil()){
 312                 _PTR(SObject) aFatherSObj = aSObj->GetFather();
 313                 if(!aFatherSObj) return aVisualObj;
 314                 aFatherSObj = aFatherSObj->GetFather();
 315                 if(!aFatherSObj) return aVisualObj;
 316                 CORBA::String_var anEntry = aFatherSObj->GetID().c_str();
 317                 TVisualObjPtr aVisObj = GetVisualObj(theStudyId,anEntry.in());
 318                 if(SMESH_MeshObj* aMeshObj = dynamic_cast<SMESH_MeshObj*>(aVisObj.get())){
 319                   aVisualObj.reset(new SMESH_GroupObj(aGroup,aMeshObj));
 320                   TVisualObjCont::value_type aValue(aKey,aVisualObj);
 321                   VISUAL_OBJ_CONT.insert(aValue);
 322                 }
 323               }
 324               //Try narrow to SMESH_subMesh interface
 325               SMESH::SMESH_subMesh_var aSubMesh = SMESH::SMESH_subMesh::_narrow(anObj);
 326               if(!aSubMesh->_is_nil()){
 327                 _PTR(SObject) aFatherSObj = aSObj->GetFather();
 328                 if(!aFatherSObj) return aVisualObj;
 329                 aFatherSObj = aFatherSObj->GetFather();
 330                 if(!aFatherSObj) return aVisualObj;
 331                 CORBA::String_var anEntry = aFatherSObj->GetID().c_str();
 332                 TVisualObjPtr aVisObj = GetVisualObj(theStudyId,anEntry.in());
 333                 if(SMESH_MeshObj* aMeshObj = dynamic_cast<SMESH_MeshObj*>(aVisObj.get())){
 334                   aVisualObj.reset(new SMESH_subMeshObj(aSubMesh,aMeshObj));
 335                   TVisualObjCont::value_type aValue(aKey,aVisualObj);
 336                   VISUAL_OBJ_CONT.insert(aValue);
 337                 }
 338               }
 339             }
 340           }
 341         }
 342       }
 343     }catch(...){
 344       INFOS("GetMeshObj - There is no SMESH_Mesh object for the SALOMEDS::Strudy and Entry!!!");
 345       return TVisualObjPtr();
 346     }
 347     // Update object
 348     bool objModified = false;
 349     if ( aVisualObj ) {
 350       try {
 351         OCC_CATCH_SIGNALS;
 352         if (nulData)
 353           objModified = aVisualObj->NulData();
 354         else
 355           objModified = aVisualObj->Update();
 356       }
 357       catch (...) {
 358         MESSAGE ( "Exception in SMESHGUI_VTKUtils::GetVisualObj()" );
 359         RemoveVisualObjectWithActors( theEntry ); // remove this object
 360         OnVisuException();
 361         aVisualObj.reset();
 362       }
 363     }
 364
 365     if ( objModified ) {
 366       // PAL16631. Measurements showed that to show aVisualObj in SHADING(default) mode,
 367       // ~5 times more memory is used than it occupies.
 368       // Warn the user if there is less free memory than 30 sizes of a grid
 369       // TODO: estimate memory usage in other modes and take current mode into account
 370       int freeMB = SMDS_Mesh::CheckMemory(true);
 371       int usedMB = aVisualObj->GetUnstructuredGrid()->GetActualMemorySize() / 1024;
 372       //MESSAGE("SMESHGUI_VTKUtils::GetVisualObj(), freeMB=" << freeMB << ", usedMB=" <<usedMB);
 373       if ( freeMB > 0 && usedMB * 5 > freeMB ) {
 374         bool continu = false;
 375         if ( usedMB * 3 > freeMB )
 376           // don't even try to show
 377           SUIT_MessageBox::warning(SMESHGUI::desktop(), QObject::tr("SMESH_WRN_WARNING"),
 378                                    QObject::tr("SMESH_NO_MESH_VISUALIZATION"));
 379         else
 380           // there is a chance to succeed
 381           continu = SUIT_MessageBox::warning
 382             (SMESHGUI::desktop(),
 383              QObject::tr("SMESH_WRN_WARNING"),
 384              QObject::tr("SMESH_CONTINUE_MESH_VISUALIZATION"),
 385              SUIT_MessageBox::Yes | SUIT_MessageBox::No,
 386              SUIT_MessageBox::Yes ) == SUIT_MessageBox::Yes;
 387         if ( !continu ) {
 388           // remove the corresponding actors from all views
 389           RemoveVisualObjectWithActors( theEntry );
 390           aVisualObj.reset();
 391         }
 392       }
 393     }
 394
 395     return aVisualObj;
 396   }
 397
 398
 399   /*! Return active view window, if it instantiates SVTK_ViewWindow class,
 400    *  otherwise find or create corresponding view window, make it active and return it.
 401    *  \note Active VVTK_ViewWindow can be returned, because it inherits SVTK_ViewWindow.
 402    */
 403   SVTK_ViewWindow* GetViewWindow (const SalomeApp_Module* theModule,
 404                                   bool createIfNotFound)
 405   {
 406     SalomeApp_Application* anApp;
 407     if (theModule)
 408       anApp = theModule->getApp();
 409     else
 410       anApp = dynamic_cast<SalomeApp_Application*>
 411         (SUIT_Session::session()->activeApplication());
 412
 413     if (anApp) {
 414       if (SVTK_ViewWindow* aView = dynamic_cast<SVTK_ViewWindow*>(anApp->desktop()->activeWindow()))
 415         return aView;
 416
 417       SUIT_ViewManager* aViewManager =
 418         anApp->getViewManager(SVTK_Viewer::Type(), createIfNotFound);
 419       if (aViewManager) {
 420         if (SUIT_ViewWindow* aViewWindow = aViewManager->getActiveView()) {
 421           if (SVTK_ViewWindow* aView = dynamic_cast<SVTK_ViewWindow*>(aViewWindow)) {
 422             aViewWindow->raise();
 423             aViewWindow->setFocus();
 424             return aView;
 425           }
 426         }
 427       }
 428     }
 429     return NULL;
 430   }
 431
 432   SVTK_ViewWindow* FindVtkViewWindow (SUIT_ViewManager* theMgr,
 433                                       SUIT_ViewWindow * theWindow)
 434   {
 435     if( !theMgr )
 436       return NULL;
 437
 438     QVector<SUIT_ViewWindow*> views = theMgr->getViews();
 439     if( views.contains( theWindow ) )
 440       return GetVtkViewWindow( theWindow );
 441     else
 442       return NULL;
 443   }
 444
 445   SVTK_ViewWindow* GetVtkViewWindow(SUIT_ViewWindow* theWindow){
 446     return dynamic_cast<SVTK_ViewWindow*>(theWindow);
 447   }
 448
 449 /*  SUIT_ViewWindow* GetActiveWindow()
 450   {
 451     SalomeApp_Application* app = dynamic_cast<SalomeApp_Application*>( SUIT_Session::session()->activeApplication() );
 452     if( !app )
 453       return NULL;
 454     SUIT_ViewManager* mgr = app->activeViewManager();
 455     if( mgr )
 456       return mgr->getActiveView();
 457     else
 458       return NULL;
 459   }*/
 460
 461   SVTK_ViewWindow* GetCurrentVtkView(){
 462     return GetVtkViewWindow( GetActiveWindow() );
 463   }
 464
 465
 466   void RepaintCurrentView()
 467   {
 468     if (SVTK_ViewWindow* wnd = GetCurrentVtkView())
 469     {
 470       try {
 471         OCC_CATCH_SIGNALS;
 472         wnd->getRenderer()->Render();
 473         wnd->Repaint(false);
 474       }
 475       catch (...) {
 476         MESSAGE ( "Exception in SMESHGUI_VTKUtils::RepaintCurrentView()" );
 477         OnVisuException();
 478       }
 479     }
 480   }
 481
 482   void RepaintViewWindow(SVTK_ViewWindow* theWindow)
 483   {
 484     try {
 485       OCC_CATCH_SIGNALS;
 486       theWindow->getRenderer()->Render();
 487       theWindow->Repaint();
 488     }
 489     catch (...) {
 490       MESSAGE ( "Exception in SMESHGUI_VTKUtils::RepaintViewWindow(SVTK_ViewWindow*)" );
 491       OnVisuException();
 492     }
 493   }
 494
 495   void RenderViewWindow(SVTK_ViewWindow* theWindow)
 496   {
 497     try {
 498       OCC_CATCH_SIGNALS;
 499       theWindow->getRenderer()->Render();
 500       theWindow->Repaint();
 501     }
 502     catch (...) {
 503       MESSAGE ( "Exception in SMESHGUI_VTKUtils::RenderViewWindow(SVTK_ViewWindow*)" );
 504       OnVisuException();
 505     }
 506   }
 507
 508   void FitAll(){
 509     if(SVTK_ViewWindow* wnd = GetCurrentVtkView() ){
 510       try {
 511         OCC_CATCH_SIGNALS;
 512         wnd->onFitAll();
 513         wnd->Repaint();
 514       }
 515       catch (...) {
 516         MESSAGE ( "Exception in SMESHGUI_VTKUtils::FitAll()" );
 517         OnVisuException();
 518       }
 519     }
 520   }
 521
 522
 523   SMESH_Actor* FindActorByEntry(SUIT_ViewWindow *theWindow,
 524                                 const char* theEntry)
 525   {
 526     if(SVTK_ViewWindow* aViewWindow = GetVtkViewWindow(theWindow)){
 527       vtkRenderer *aRenderer = aViewWindow->getRenderer();
 528       VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
 529       vtkActorCollection *aCollection = aCopy.GetActors();
 530       aCollection->InitTraversal();
 531       while(vtkActor *anAct = aCollection->GetNextActor()){
 532         if(SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>(anAct)){
 533           if(anActor->hasIO()){
 534             Handle(SALOME_InteractiveObject) anIO = anActor->getIO();
 535             if(anIO->hasEntry() && strcmp(anIO->getEntry(),theEntry) == 0){
 536               return anActor;
 537             }
 538           }
 539         }
 540       }
 541     }
 542     return NULL;
 543   }
 544
 545
 546   SMESH_Actor* FindActorByEntry(const char* theEntry){
 547     return FindActorByEntry(GetActiveWindow(),theEntry);
 548   }
 549
 550
 551   SMESH_Actor* FindActorByObject(CORBA::Object_ptr theObject){
 552     SalomeApp_Application* app = dynamic_cast<SalomeApp_Application*>( SUIT_Session::session()->activeApplication() );
 553     if( !app )
 554       return NULL;
 555
 556     if(!CORBA::is_nil(theObject)){
 557       _PTR(Study) aStudy = GetActiveStudyDocument();
 558       CORBA::String_var anIOR = app->orb()->object_to_string( theObject );
 559       _PTR(SObject) aSObject = aStudy->FindObjectIOR(anIOR.in());
 560       if(aSObject){
 561         CORBA::String_var anEntry = aSObject->GetID().c_str();
 562         return FindActorByEntry(anEntry.in());
 563       }
 564     }
 565     return NULL;
 566   }
 567
 568
 569   SMESH_Actor* CreateActor(_PTR(Study) theStudy,
 570                            const char* theEntry,
 571                            int theIsClear)
 572   {
 573     SMESH_Actor *anActor = NULL;
 574     CORBA::Long anId = theStudy->StudyId();
 575     if(TVisualObjPtr aVisualObj = GetVisualObj(anId,theEntry)){
 576       _PTR(SObject) aSObj = theStudy->FindObjectID(theEntry);
 577       if(aSObj){
 578         _PTR(GenericAttribute) anAttr;
 579         if(aSObj->FindAttribute(anAttr,"AttributeName")){
 580           _PTR(AttributeName) aName = anAttr;
 581           std::string aNameVal = aName->Value();
 582           anActor = SMESH_Actor::New(aVisualObj,theEntry,aNameVal.c_str(),theIsClear);
 583         }
 584
 585         SMESH::SMESH_GroupBase_var aGroup = SMESH::SMESH_GroupBase::_narrow( SMESH::SObjectToObject( aSObj ));
 586         if(!CORBA::is_nil(aGroup) && anActor)
 587         {
 588           QColor c;
 589           int deltaF, deltaV;
 590           SMESH::GetColor( "SMESH", "fill_color", c, deltaF, "0,170,255|-100"  );
 591           SMESH::GetColor( "SMESH", "volume_color", c, deltaV, "255,0,170|-100"  );
 592           c = SMESH::GetColor( "SMESH", "default_grp_color", c );
 593           SALOMEDS::Color aColor = aGroup->GetColor();
 594           if( !( aColor.R > 0 || aColor.G > 0 || aColor.B > 0 ))
 595           {
 596             aColor.R = c.redF();
 597             aColor.G = c.greenF();
 598             aColor.B = c.blueF();
 599             aGroup->SetColor( aColor );
 600           }
 601           if( aGroup->GetType() == SMESH::NODE )
 602             anActor->SetNodeColor( aColor.R, aColor.G, aColor.B );
 603           else if( aGroup->GetType() == SMESH::EDGE )
 604             anActor->SetEdgeColor( aColor.R, aColor.G, aColor.B );
 605           else if( aGroup->GetType() == SMESH::ELEM0D )
 606             anActor->Set0DColor( aColor.R, aColor.G, aColor.B );
 607           else if( aGroup->GetType() == SMESH::BALL )
 608             anActor->SetBallColor( aColor.R, aColor.G, aColor.B );
 609           else if( aGroup->GetType() == SMESH::VOLUME )
 610             anActor->SetVolumeColor( aColor.R, aColor.G, aColor.B, deltaV );
 611           else
 612             anActor->SetSufaceColor( aColor.R, aColor.G, aColor.B, deltaF );
 613         }
 614       }
 615     }
 616     //MESSAGE("CreateActor " << anActor);
 617     if( anActor )
 618       if( SMESHGUI* aSMESHGUI = SMESHGUI::GetSMESHGUI() )
 619         aSMESHGUI->addActorAsObserver( anActor );
 620     return anActor;
 621   }
 622
 623
 624   void DisplayActor( SUIT_ViewWindow *theWnd, SMESH_Actor* theActor){
 625     if(SVTK_ViewWindow* vtkWnd = GetVtkViewWindow(theWnd)){
 626       try {
 627         OCC_CATCH_SIGNALS;
 628         //MESSAGE("DisplayActor " << theActor);
 629         vtkWnd->AddActor(theActor);
 630         vtkWnd->Repaint();
 631       }
 632       catch (...) {
 633         MESSAGE ( "Exception in SMESHGUI_VTKUtils::DisplayActor()" );
 634         OnVisuException();
 635       }
 636     }
 637   }
 638
 639
 640   void RemoveActor( SUIT_ViewWindow *theWnd, SMESH_Actor* theActor)
 641   {
 642     if ( SVTK_ViewWindow* vtkWnd = GetVtkViewWindow(theWnd)) {
 643       //MESSAGE("RemoveActor " << theActor);
 644       vtkWnd->RemoveActor(theActor);
 645       if(theActor->hasIO()){
 646         Handle(SALOME_InteractiveObject) anIO = theActor->getIO();
 647         if(anIO->hasEntry()){
 648           std::string anEntry = anIO->getEntry();
 649           SalomeApp_Study* aStudy = dynamic_cast<SalomeApp_Study*>( vtkWnd->getViewManager()->study() );
 650           int aStudyId = aStudy->id();
 651           TVisualObjCont::key_type aKey(aStudyId,anEntry);
 652           VISUAL_OBJ_CONT.erase(aKey);
 653         }
 654       }
 655       theActor->Delete();
 656       vtkWnd->Repaint();
 657     }
 658   }
 659
 660   //================================================================================
 661   /*!
 662    * \brief Return true if there are no SMESH actors in a view
 663    */
 664   //================================================================================
 665
 666   bool noSmeshActors(SUIT_ViewWindow *theWnd)
 667   {
 668     if(SVTK_ViewWindow* aViewWindow = GetVtkViewWindow(theWnd)) {
 669       vtkRenderer *aRenderer = aViewWindow->getRenderer();
 670       VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
 671       vtkActorCollection *aCollection = aCopy.GetActors();
 672       aCollection->InitTraversal();
 673       while(vtkActor *anAct = aCollection->GetNextActor())
 674         if(dynamic_cast<SMESH_Actor*>(anAct))
 675           return false;
 676     }
 677     return true;
 678   }
 679
 680   bool UpdateView(SUIT_ViewWindow *theWnd, EDisplaing theAction, const char* theEntry)
 681   {
 682     //MESSAGE("UpdateView");
 683     bool OK = false;
 684     SVTK_ViewWindow* aViewWnd = GetVtkViewWindow(theWnd);
 685     if (!aViewWnd)
 686       return OK;
 687
 688     SVTK_ViewWindow* vtkWnd = GetVtkViewWindow(theWnd);
 689     if (!vtkWnd)
 690       return OK;
 691
 692     SalomeApp_Study* aStudy = dynamic_cast<SalomeApp_Study*>( vtkWnd->getViewManager()->study() );
 693
 694     if (!aStudy)
 695       return OK;
 696
 697     {
 698       OK = true;
 699       vtkRenderer *aRenderer = aViewWnd->getRenderer();
 700       VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
 701       vtkActorCollection *aCollection = aCopy.GetActors();
 702       aCollection->InitTraversal();
 703
 704       switch (theAction) {
 705       case eDisplayAll: {
 706         while (vtkActor *anAct = aCollection->GetNextActor()) {
 707           if (SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>(anAct)) {
 708             //MESSAGE("--- display " << anActor);
 709             anActor->SetVisibility(true);
 710
 711             if(anActor->hasIO()){
 712               Handle(SALOME_InteractiveObject) anIO = anActor->getIO();
 713               if(anIO->hasEntry()){
 714                 aStudy->setVisibilityState(anIO->getEntry(), Qtx::ShownState);
 715               }
 716             }
 717           }
 718         }
 719         break;
 720       }
 721       case eDisplayOnly:
 722       case eEraseAll: {
 723         //MESSAGE("---case eDisplayOnly");
 724         while (vtkActor *anAct = aCollection->GetNextActor()) {
 725           if (SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>(anAct)) {
 726             //MESSAGE("--- erase " << anActor);
 727             anActor->SetVisibility(false);
 728           }
 729         }
 730         aStudy->setVisibilityStateForAll(Qtx::HiddenState);
 731       }
 732       default: {
 733         if (SMESH_Actor *anActor = FindActorByEntry(theWnd,theEntry)) {
 734           switch (theAction) {
 735             case eDisplay:
 736             case eDisplayOnly:
 737               //MESSAGE("--- display " << anActor);
 738               anActor->Update();
 739               anActor->SetVisibility(true);
 740               if (theAction == eDisplayOnly) aRenderer->ResetCameraClippingRange();
 741               aStudy->setVisibilityState(theEntry, Qtx::ShownState);
 742               break;
 743             case eErase:
 744               //MESSAGE("--- erase " << anActor);
 745               anActor->SetVisibility(false);
 746               aStudy->setVisibilityState(theEntry, Qtx::HiddenState);
 747               break;
 748             default:;
 749           }
 750         } else {
 751           switch (theAction) {
 752           case eDisplay:
 753           case eDisplayOnly:
 754             {
 755               //MESSAGE("---");
 756               SalomeApp_Study* aStudy = dynamic_cast<SalomeApp_Study*>(theWnd->getViewManager()->study());
 757               _PTR(Study) aDocument = aStudy->studyDS();
 758               // Pass non-visual objects (hypotheses, etc.), return true in this case
 759               CORBA::Long anId = aDocument->StudyId();
 760               TVisualObjPtr aVisualObj;
 761               if ( (aVisualObj = GetVisualObj(anId,theEntry)) && aVisualObj->IsValid())
 762               {
 763                 if ((anActor = CreateActor(aDocument,theEntry,true))) {
 764                   bool needFitAll = noSmeshActors(theWnd); // fit for the first object only
 765                   DisplayActor(theWnd,anActor);
 766                   anActor->SetVisibility(true);
 767                   aStudy->setVisibilityState(theEntry, Qtx::ShownState);
 768                   // FitAll(); - PAL16770(Display of a group performs an automatic fit all)
 769                   if (needFitAll) FitAll();
 770                 } else {
 771                   OK = false;
 772                 }
 773               }
 774               break;
 775             }
 776           default:;
 777           }
 778         }
 779       }
 780       }
 781     }
 782     return OK;
 783   }
 784
 785
 786   bool UpdateView(EDisplaing theAction, const char* theEntry) {
 787     //MESSAGE("UpdateView");
 788     SalomeApp_Study* aStudy = dynamic_cast< SalomeApp_Study* >( GetActiveStudy() );
 789     SalomeApp_Application* app = dynamic_cast< SalomeApp_Application* >( aStudy->application() );
 790     if ( SUIT_ViewManager* vm = app->activeViewManager() )
 791     {
 792       SUIT_ViewWindow *aWnd = vm->getActiveView();
 793       return UpdateView(aWnd,theAction,theEntry);
 794     }
 795     return false;
 796   }
 797
 798   void UpdateView( bool withChildrenOfSelected )
 799   {
 800     if ( SVTK_ViewWindow* aWnd = SMESH::GetCurrentVtkView()) {
 801       LightApp_SelectionMgr* mgr = SMESHGUI::selectionMgr();
 802       SALOME_ListIO selected; mgr->selectedObjects( selected );
 803
 804       if ( selected.Extent() == 0 ) {
 805         vtkRenderer* aRenderer = aWnd->getRenderer();
 806         VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
 807         vtkActorCollection *aCollection = aCopy.GetActors();
 808         aCollection->InitTraversal();
 809         while(vtkActor *anAct = aCollection->GetNextActor()){
 810           if(SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>(anAct)){
 811             if(anActor->hasIO())
 812               if (!Update(anActor->getIO(),anActor->GetVisibility()))
 813                 break; // avoid multiple warinings if visu failed
 814           }
 815         }
 816       }
 817       else
 818       {
 819         SALOME_ListIteratorOfListIO anIter( selected );
 820         for( ; anIter.More(); anIter.Next())
 821         {
 822           Handle(SALOME_InteractiveObject) anIO = anIter.Value();
 823           if ( !Update( anIO, true ))
 824             break; // avoid multiple warinings if visu failed
 825
 826           if ( withChildrenOfSelected ) // update all visible children
 827           {
 828             QString aFatherID = anIO->getEntry();
 829             vtkRenderer* aRenderer = aWnd->getRenderer();
 830             VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
 831             vtkActorCollection *aCollection = aCopy.GetActors();
 832             aCollection->InitTraversal();
 833             while ( vtkActor *anAct = aCollection->GetNextActor() ) {
 834               if ( SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>( anAct )) {
 835                 if ( anActor->hasIO() && anActor->GetVisibility() )
 836                 {
 837                   QString aChildID = anActor->getIO()->getEntry();
 838                   if ( aChildID.size() > aFatherID.size() &&
 839                        aChildID.startsWith( aFatherID ))
 840                     if ( ! Update( anActor->getIO(), true ))
 841                       break;
 842                 }
 843               }
 844             }
 845           }
 846         }
 847       }
 848       RepaintCurrentView();
 849     }
 850   }
 851
 852
 853   bool Update(const Handle(SALOME_InteractiveObject)& theIO, bool theDisplay)
 854   {
 855     //MESSAGE("Update");
 856     _PTR(Study) aStudy = GetActiveStudyDocument();
 857     CORBA::Long anId = aStudy->StudyId();
 858     if ( TVisualObjPtr aVisualObj = SMESH::GetVisualObj(anId,theIO->getEntry())) {
 859       if ( theDisplay )
 860         UpdateView(SMESH::eDisplay,theIO->getEntry());
 861       return true;
 862     }
 863     return false;
 864   }
 865
 866   bool UpdateNulData(const Handle(SALOME_InteractiveObject)& theIO, bool theDisplay)
 867   {
 868     //MESSAGE("UpdateNulData");
 869     _PTR(Study) aStudy = GetActiveStudyDocument();
 870     CORBA::Long anId = aStudy->StudyId();
 871     if ( TVisualObjPtr aVisualObj = SMESH::GetVisualObj(anId,theIO->getEntry(), true)) {
 872       if ( theDisplay )
 873         UpdateView(SMESH::eDisplay,theIO->getEntry());
 874       return true;
 875     }
 876     return false;
 877   }
 878
 879   void UpdateSelectionProp( SMESHGUI* theModule )
 880   {
 881     if( !theModule )
 882       return;
 883
 884     SalomeApp_Application* app = dynamic_cast< SalomeApp_Application* >( theModule->application() );
 885     if( !app )
 886     {
 887       MESSAGE( "UpdateSelectionProp: Application is null" );
 888       return;
 889     }
 890
 891     SUIT_ViewManager* vm = app->activeViewManager();
 892     if( !vm )
 893     {
 894       MESSAGE( "UpdateSelectionProp: View manager is null" );
 895       return;
 896     }
 897
 898     QVector<SUIT_ViewWindow*> views = vm->getViews();
 899
 900     SUIT_ResourceMgr* mgr = SMESH::GetResourceMgr( theModule );
 901     if( !mgr )
 902     {
 903       MESSAGE( "UpdateSelectionProp: Resource manager is null" );
 904       return;
 905     }
 906
 907     SMESH_ActorProps::props()->reset();
 908
 909     QColor
 910       aHiColor = mgr->colorValue( "SMESH", "selection_object_color", Qt::white ),
 911       aSelColor = mgr->colorValue( "SMESH", "selection_element_color", Qt::yellow ),
 912       aPreColor = mgr->colorValue( "SMESH", "highlight_color", Qt::cyan );
 913
 914     int aElem0DSize = mgr->integerValue("SMESH", "elem0d_size", 5);
 915     // int aBallSize   = mgr->integerValue("SMESH", "ball_elem_size", 5);
 916     int aLineWidth  = mgr->integerValue("SMESH", "element_width", 1);
 917     int maxSize = aElem0DSize;
 918     if (aElem0DSize > maxSize) maxSize = aElem0DSize;
 919     if (aLineWidth > maxSize) maxSize = aLineWidth;
 920     //  if (aBallSize > maxSize) maxSize = aBallSize;
 921
 922     double
 923       SP1 = mgr->doubleValue( "SMESH", "selection_precision_node", 0.025 ),
 924       SP2 = mgr->doubleValue( "SMESH", "selection_precision_element", 0.001 ),
 925       SP3 = mgr->doubleValue( "SMESH", "selection_precision_object", 0.025 );
 926
 927     for ( int i=0, n=views.count(); i<n; i++ )
 928     {
 929       // update VTK viewer properties
 930       if ( SVTK_ViewWindow* aVtkView = GetVtkViewWindow( views[i] ))
 931       {
 932         // mesh element selection
 933         aVtkView->SetSelectionProp(aSelColor.red()/255.,
 934                                    aSelColor.green()/255.,
 935                                    aSelColor.blue()/255.);
 936         // tolerances
 937         aVtkView->SetSelectionTolerance(SP1, SP2, SP3);
 938
 939         // pre-selection
 940         aVtkView->SetPreselectionProp(aPreColor.red()/255.,
 941                                       aPreColor.green()/255.,
 942                                       aPreColor.blue()/255.);
 943         // update actors
 944         vtkRenderer* aRenderer = aVtkView->getRenderer();
 945         VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
 946         vtkActorCollection *aCollection = aCopy.GetActors();
 947         aCollection->InitTraversal();
 948         while ( vtkActor *anAct = aCollection->GetNextActor() ) {
 949           if ( SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>(anAct) ) {
 950             anActor->UpdateSelectionProps();
 951           }
 952         }
 953       }
 954     }
 955   }
 956
 957
 958   void UpdateFontProp( SMESHGUI* theModule )
 959   {
 960     if ( !theModule ) return;
 961
 962     SalomeApp_Application* app = dynamic_cast< SalomeApp_Application* >( theModule->application() );
 963     if ( !app ) return;
 964
 965     SUIT_ResourceMgr* mgr = SMESH::GetResourceMgr( theModule );
 966     if ( !mgr ) return;
 967     //
 968     double anRGBNd[3] = {1,1,1};
 969     SMESH::GetColor( "SMESH", "numbering_node_color", anRGBNd[0], anRGBNd[1], anRGBNd[2], QColor( 255, 255, 255 ) );
 970     int aSizeNd = 10;
 971     SMESH::LabelFont aFamilyNd = SMESH::FntTimes;
 972     bool aBoldNd    = true;
 973     bool anItalicNd = false;
 974     bool aShadowNd  = false;
 975
 976     if ( mgr->hasValue( "SMESH", "numbering_node_font" ) ) {
 977       QFont f = mgr->fontValue( "SMESH", "numbering_node_font" );
 978       if ( f.family()      == "Arial" )   aFamilyNd = SMESH::FntArial;
 979       else if ( f.family() == "Courier" ) aFamilyNd = SMESH::FntCourier;
 980       else if ( f.family() == "Times" )   aFamilyNd = SMESH::FntTimes;
 981       aBoldNd    = f.bold();
 982       anItalicNd = f.italic();
 983       aShadowNd  = f.overline();
 984       aSizeNd    = f.pointSize();
 985     }
 986     //
 987     double anRGBEl[3] = {0,1,0};
 988     SMESH::GetColor( "SMESH", "numbering_elem_color", anRGBEl[0], anRGBEl[1], anRGBEl[2], QColor( 0, 255, 0 ) );
 989     int aSizeEl = 12;
 990     SMESH::LabelFont aFamilyEl = SMESH::FntTimes;
 991     bool aBoldEl    = true;
 992     bool anItalicEl = false;
 993     bool aShadowEl  = false;
 994
 995     if ( mgr->hasValue( "SMESH", "numbering_elem_font" ) ) {
 996       QFont f = mgr->fontValue( "SMESH", "numbering_elem_font" );
 997
 998       if ( f.family()      == "Arial" )   aFamilyEl = SMESH::FntArial;
 999       else if ( f.family() == "Courier" ) aFamilyEl = SMESH::FntCourier;
1000       else if ( f.family() == "Times" )   aFamilyEl = SMESH::FntTimes;
1001       aBoldEl    = f.bold();
1002       anItalicEl = f.italic();
1003       aShadowEl  = f.overline();
1004       aSizeEl    = f.pointSize();
1005     }
1006     //
1007     ViewManagerList vmList;
1008     app->viewManagers( SVTK_Viewer::Type(), vmList );
1009     foreach ( SUIT_ViewManager* vm, vmList ) {
1010       QVector<SUIT_ViewWindow*> views = vm->getViews();
1011       foreach ( SUIT_ViewWindow* vw, views ) {
1012         // update VTK viewer properties
1013         if ( SVTK_ViewWindow* aVtkView = GetVtkViewWindow( vw ) ) {
1014           // update actors
1015           vtkRenderer* aRenderer = aVtkView->getRenderer();
1016           VTK::ActorCollectionCopy aCopy( aRenderer->GetActors() );
1017           vtkActorCollection* aCollection = aCopy.GetActors();
1018           aCollection->InitTraversal();
1019           while ( vtkActor* anAct = aCollection->GetNextActor() ) {
1020             if ( SMESH_NodeLabelActor* anActor = dynamic_cast< SMESH_NodeLabelActor* >( anAct ) ) {
1021               anActor->SetFontProperties( aFamilyNd, aSizeNd, aBoldNd, anItalicNd, aShadowNd, anRGBNd[0], anRGBNd[1], anRGBNd[2] );
1022             }
1023             else if ( SMESH_CellLabelActor* anActor = dynamic_cast< SMESH_CellLabelActor* >( anAct ) ) {
1024               anActor->SetFontProperties( aFamilyEl, aSizeEl, aBoldEl, anItalicEl, aShadowEl, anRGBEl[0], anRGBEl[1], anRGBEl[2] );
1025             }
1026           }
1027           aVtkView->Repaint( false );
1028         }
1029       }
1030     }
1031   }
1032
1033   //----------------------------------------------------------------------------
1034   SVTK_Selector*
1035   GetSelector(SUIT_ViewWindow *theWindow)
1036   {
1037     if(SVTK_ViewWindow* aWnd = GetVtkViewWindow(theWindow))
1038       return aWnd->GetSelector();
1039
1040     return NULL;
1041   }
1042
1043   void SetFilter(const Handle(VTKViewer_Filter)& theFilter,
1044                  SVTK_Selector* theSelector)
1045   {
1046     if (theSelector)
1047       theSelector->SetFilter(theFilter);
1048   }
1049
1050   Handle(VTKViewer_Filter) GetFilter(int theId, SVTK_Selector* theSelector)
1051   {
1052     return theSelector->GetFilter(theId);
1053   }
1054
1055   bool IsFilterPresent(int theId, SVTK_Selector* theSelector)
1056   {
1057     return theSelector->IsFilterPresent(theId);
1058   }
1059
1060   void RemoveFilter(int theId, SVTK_Selector* theSelector)
1061   {
1062     theSelector->RemoveFilter(theId);
1063   }
1064
1065   void RemoveFilters(SVTK_Selector* theSelector)
1066   {
1067     for ( int id = SMESH::NodeFilter; theSelector && id < SMESH::LastFilter; id++ )
1068       theSelector->RemoveFilter( id );
1069   }
1070
1071   bool IsValid(SALOME_Actor* theActor, int theCellId,
1072                SVTK_Selector* theSelector)
1073   {
1074     return theSelector->IsValid(theActor,theCellId);
1075   }
1076
1077
1078   //----------------------------------------------------------------------------
1079   void SetPointRepresentation(bool theIsVisible)
1080   {
1081     if ( SVTK_ViewWindow* aViewWindow = GetCurrentVtkView() ) {
1082       vtkRenderer *aRenderer = aViewWindow->getRenderer();
1083       VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
1084       vtkActorCollection *aCollection = aCopy.GetActors();
1085       aCollection->InitTraversal();
1086       while(vtkActor *anAct = aCollection->GetNextActor()){
1087         if(SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>(anAct)){
1088           if(anActor->GetVisibility()){
1089             anActor->SetPointRepresentation(theIsVisible);
1090           }
1091         }
1092       }
1093       RepaintCurrentView();
1094     }
1095   }
1096
1097
1098   void SetPickable(SMESH_Actor* theActor)
1099   {
1100     if ( SVTK_ViewWindow* aWnd = GetCurrentVtkView() ) {
1101       int anIsAllPickable = (theActor == NULL);
1102       vtkRenderer *aRenderer = aWnd->getRenderer();
1103       VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
1104       vtkActorCollection *aCollection = aCopy.GetActors();
1105       aCollection->InitTraversal();
1106       while(vtkActor *anAct = aCollection->GetNextActor()){
1107         if(SALOME_Actor *anActor = dynamic_cast<SALOME_Actor*>(anAct)){
1108           if(anActor->GetVisibility()){
1109             anActor->SetPickable(anIsAllPickable);
1110           }
1111         }
1112       }
1113       if(theActor)
1114         theActor->SetPickable(!anIsAllPickable);
1115       RepaintCurrentView();
1116     }
1117   }
1118
1119
1120   //----------------------------------------------------------------------------
1121   int GetNameOfSelectedNodes(SVTK_Selector*                          theSelector,
1122                              const Handle(SALOME_InteractiveObject)& theIO,
1123                              QString&                                theName)
1124   {
1125     theName = "";
1126     TColStd_IndexedMapOfInteger aMapIndex;
1127     theSelector->GetIndex(theIO,aMapIndex);
1128
1129     for(int i = 1; i <= aMapIndex.Extent(); i++)
1130       theName += QString(" %1").arg(aMapIndex(i));
1131
1132     return aMapIndex.Extent();
1133   }
1134
1135   int GetNameOfSelectedElements(SVTK_Selector* theSelector,
1136                                 const Handle(SALOME_InteractiveObject)& theIO,
1137                                 QString& theName)
1138   {
1139     theName = "";
1140     TColStd_IndexedMapOfInteger aMapIndex;
1141     theSelector->GetIndex(theIO,aMapIndex);
1142
1143     typedef std::set<int> TIdContainer;
1144     TIdContainer anIdContainer;
1145     for( int i = 1; i <= aMapIndex.Extent(); i++)
1146       anIdContainer.insert(aMapIndex(i));
1147
1148     TIdContainer::const_iterator anIter = anIdContainer.begin();
1149     for( ; anIter != anIdContainer.end(); anIter++)
1150       theName += QString(" %1").arg(*anIter);
1151
1152     return aMapIndex.Extent();
1153   }
1154
1155
1156   int GetEdgeNodes(SVTK_Selector* theSelector,
1157                    const TVisualObjPtr& theVisualObject,
1158                    int& theId1,
1159                    int& theId2)
1160   {
1161     const SALOME_ListIO& selected = theSelector->StoredIObjects();
1162
1163     if ( selected.Extent() != 1 )
1164       return -1;
1165
1166     Handle(SALOME_InteractiveObject) anIO = selected.First();
1167     if ( anIO.IsNull() || !anIO->hasEntry() )
1168       return -1;
1169
1170     TColStd_IndexedMapOfInteger aMapIndex;
1171     theSelector->GetIndex( anIO, aMapIndex );
1172     if ( aMapIndex.Extent() != 2 )
1173       return -1;
1174
1175     int anObjId = -1, anEdgeNum = -1;
1176     for ( int i = 1; i <= aMapIndex.Extent(); i++ ) {
1177       int aVal = aMapIndex( i );
1178       if ( aVal > 0 )
1179         anObjId = aVal;
1180       else
1181         anEdgeNum = abs( aVal ) - 1;
1182     }
1183
1184     if ( anObjId == -1 || anEdgeNum == -1 )
1185       return -1;
1186
1187     return theVisualObject->GetEdgeNodes( anObjId, anEdgeNum, theId1, theId2 ) ? 1 : -1;
1188   }
1189
1190   //----------------------------------------------------------------------------
1191   int GetNameOfSelectedNodes(LightApp_SelectionMgr *theMgr,
1192                              const Handle(SALOME_InteractiveObject)& theIO,
1193                              QString& theName)
1194   {
1195     theName = "";
1196     if(theIO->hasEntry()){
1197       if(FindActorByEntry(theIO->getEntry())){
1198         TColStd_IndexedMapOfInteger aMapIndex;
1199         theMgr->GetIndexes(theIO,aMapIndex);
1200         for(int i = 1; i <= aMapIndex.Extent(); i++){
1201           theName += QString(" %1").arg(aMapIndex(i));
1202         }
1203         return aMapIndex.Extent();
1204       }
1205     }
1206     return -1;
1207   }
1208
1209   int GetNameOfSelectedNodes(LightApp_SelectionMgr *theMgr, QString& theName)
1210   {
1211     theName = "";
1212     SALOME_ListIO selected; theMgr->selectedObjects( selected );
1213     if(selected.Extent() == 1){
1214       Handle(SALOME_InteractiveObject) anIO = selected.First();
1215       return GetNameOfSelectedNodes(theMgr,anIO,theName);
1216     }
1217     return -1;
1218   }
1219
1220
1221   int GetNameOfSelectedElements(LightApp_SelectionMgr *                 theMgr,
1222                                 const Handle(SALOME_InteractiveObject)& theIO,
1223                                 QString&                                theName)
1224   {
1225     theName = "";
1226     if(theIO->hasEntry()){
1227       if(FindActorByEntry(theIO->getEntry())){
1228         TColStd_IndexedMapOfInteger aMapIndex;
1229         theMgr->GetIndexes(theIO,aMapIndex);
1230         typedef std::set<int> TIdContainer;
1231         TIdContainer anIdContainer;
1232         for( int i = 1; i <= aMapIndex.Extent(); i++)
1233           anIdContainer.insert(aMapIndex(i));
1234         TIdContainer::const_iterator anIter = anIdContainer.begin();
1235         for( ; anIter != anIdContainer.end(); anIter++){
1236           theName += QString(" %1").arg(*anIter);
1237         }
1238         return aMapIndex.Extent();
1239       }
1240     }
1241     return -1;
1242   }
1243
1244
1245   int GetNameOfSelectedElements(LightApp_SelectionMgr *theMgr, QString& theName)
1246   {
1247     theName = "";
1248     SALOME_ListIO selected; theMgr->selectedObjects( selected );
1249
1250     if( selected.Extent() == 1){
1251       Handle(SALOME_InteractiveObject) anIO = selected.First();
1252       return GetNameOfSelectedElements(theMgr,anIO,theName);
1253     }
1254     return -1;
1255   }
1256
1257   int GetSelected(LightApp_SelectionMgr*       theMgr,
1258                   TColStd_IndexedMapOfInteger& theMap,
1259                   const bool                   theIsElement)
1260   {
1261     theMap.Clear();
1262     SALOME_ListIO selected; theMgr->selectedObjects( selected );
1263
1264     if ( selected.Extent() == 1 )
1265     {
1266       Handle(SALOME_InteractiveObject) anIO = selected.First();
1267       if ( anIO->hasEntry() ) {
1268         theMgr->GetIndexes( anIO, theMap );
1269       }
1270     }
1271     return theMap.Extent();
1272   }
1273
1274
1275   int GetEdgeNodes( LightApp_SelectionMgr* theMgr, int& theId1, int& theId2 )
1276   {
1277     SALOME_ListIO selected; theMgr->selectedObjects( selected );
1278
1279     if ( selected.Extent() != 1 )
1280       return -1;
1281
1282     Handle(SALOME_InteractiveObject) anIO = selected.First();
1283     if ( anIO.IsNull() || !anIO->hasEntry() )
1284       return -1;
1285
1286     SMESH_Actor *anActor = SMESH::FindActorByEntry( anIO->getEntry() );
1287     if ( anActor == 0 )
1288       return -1;
1289
1290     TColStd_IndexedMapOfInteger aMapIndex;
1291     theMgr->GetIndexes( anIO, aMapIndex );
1292     if ( aMapIndex.Extent() != 2 )
1293       return -1;
1294
1295     int anObjId = -1, anEdgeNum = -1;
1296     for ( int i = 1; i <= aMapIndex.Extent(); i++ ) {
1297       int aVal = aMapIndex( i );
1298       if ( aVal > 0 )
1299         anObjId = aVal;
1300       else
1301         anEdgeNum = abs( aVal );
1302     }
1303
1304     if ( anObjId == -1 || anEdgeNum == -1 )
1305       return -1;
1306
1307     return anActor->GetObject()->GetEdgeNodes( anObjId, anEdgeNum, theId1, theId2 ) ? 1 : -1;
1308   }
1309
1310   void SetControlsPrecision( const long theVal )
1311   {
1312     if( SVTK_ViewWindow* aWnd = SMESH::GetCurrentVtkView() )
1313     {
1314       vtkRenderer *aRenderer = aWnd->getRenderer();
1315       VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
1316       vtkActorCollection *aCollection = aCopy.GetActors();
1317       aCollection->InitTraversal();
1318
1319       while ( vtkActor *anAct = aCollection->GetNextActor())
1320       {
1321         if ( SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>( anAct ) )
1322         {
1323           anActor->SetControlsPrecision( theVal );
1324           anActor->SetControlMode( anActor->GetControlMode() );
1325         }
1326       }
1327
1328     }
1329   }
1330
1331   //----------------------------------------------------------------------------
1332   // internal function
1333   void ComputeBoundsParam( double theBounds[6],
1334                            double theDirection[3],
1335                            double theMinPnt[3],
1336                            double& theMaxBoundPrj,
1337                            double& theMinBoundPrj )
1338   {
1339     //Enlarge bounds in order to avoid conflicts of precision
1340     for(int i = 0; i < 6; i += 2){
1341       static double EPS = 1.0E-3;
1342       double aDelta = (theBounds[i+1] - theBounds[i])*EPS;
1343       theBounds[i] -= aDelta;
1344       theBounds[i+1] += aDelta;
1345     }
1346
1347     double aBoundPoints[8][3] = { {theBounds[0],theBounds[2],theBounds[4]},
1348                                   {theBounds[1],theBounds[2],theBounds[4]},
1349                                   {theBounds[0],theBounds[3],theBounds[4]},
1350                                   {theBounds[1],theBounds[3],theBounds[4]},
1351                                   {theBounds[0],theBounds[2],theBounds[5]},
1352                                   {theBounds[1],theBounds[2],theBounds[5]},
1353                                   {theBounds[0],theBounds[3],theBounds[5]},
1354                                   {theBounds[1],theBounds[3],theBounds[5]}};
1355
1356     int aMaxId = 0;
1357     theMaxBoundPrj = vtkMath::Dot(theDirection,aBoundPoints[aMaxId]);
1358     theMinBoundPrj = theMaxBoundPrj;
1359     for(int i = 1; i < 8; i++){
1360       double aTmp = vtkMath::Dot(theDirection,aBoundPoints[i]);
1361       if(theMaxBoundPrj < aTmp){
1362         theMaxBoundPrj = aTmp;
1363         aMaxId = i;
1364       }
1365       if(theMinBoundPrj > aTmp){
1366         theMinBoundPrj = aTmp;
1367       }
1368     }
1369     double *aMinPnt = aBoundPoints[aMaxId];
1370     theMinPnt[0] = aMinPnt[0];
1371     theMinPnt[1] = aMinPnt[1];
1372     theMinPnt[2] = aMinPnt[2];
1373   }
1374
1375   // internal function
1376   void DistanceToPosition( double theBounds[6],
1377                            double theDirection[3],
1378                            double theDist,
1379                            double thePos[3] )
1380   {
1381     double aMaxBoundPrj, aMinBoundPrj, aMinPnt[3];
1382     ComputeBoundsParam(theBounds,theDirection,aMinPnt,aMaxBoundPrj,aMinBoundPrj);
1383     double aLength = (aMaxBoundPrj-aMinBoundPrj)*theDist;
1384     thePos[0] = aMinPnt[0]-theDirection[0]*aLength;
1385     thePos[1] = aMinPnt[1]-theDirection[1]*aLength;
1386     thePos[2] = aMinPnt[2]-theDirection[2]*aLength;
1387   }
1388
1389   // internal function (currently unused, left just in case)
1390   void PositionToDistance( double theBounds[6],
1391                            double theDirection[3],
1392                            double thePos[3],
1393                            double& theDist )
1394   {
1395     double aMaxBoundPrj, aMinBoundPrj, aMinPnt[3];
1396     ComputeBoundsParam(theBounds,theDirection,aMinPnt,aMaxBoundPrj,aMinBoundPrj);
1397     double aPrj = vtkMath::Dot(theDirection,thePos);
1398     theDist = (aPrj-aMinBoundPrj)/(aMaxBoundPrj-aMinBoundPrj);
1399   }
1400
1401   bool ComputeClippingPlaneParameters( std::list<vtkActor*> theActorList,
1402                                        double theNormal[3],
1403                                        double theDist,
1404                                        double theBounds[6],
1405                                        double theOrigin[3] )
1406   {
1407     bool anIsOk = false;
1408     anIsOk = ComputeBounds( theActorList, theBounds );
1409
1410
1411     if( !anIsOk )
1412       return false;
1413
1414     DistanceToPosition( theBounds, theNormal, theDist, theOrigin );
1415     return true;
1416   }
1417
1418   bool ComputeBounds( std::list<vtkActor*> theActorList,
1419                       double theBounds[6])
1420   {
1421     bool anIsOk = false;
1422     theBounds[0] = theBounds[2] = theBounds[4] = VTK_DOUBLE_MAX;
1423     theBounds[1] = theBounds[3] = theBounds[5] = -VTK_DOUBLE_MAX;
1424     std::list<vtkActor*>::iterator anIter = theActorList.begin();
1425     for( ; anIter != theActorList.end(); anIter++ ) {
1426       if( vtkActor* aVTKActor = *anIter ) {
1427         if( SMESH_Actor* anActor = SMESH_Actor::SafeDownCast( aVTKActor ) ) {
1428           double aBounds[6];
1429           anActor->GetUnstructuredGrid()->GetBounds( aBounds );
1430           theBounds[0] = std::min( theBounds[0], aBounds[0] );
1431           theBounds[1] = std::max( theBounds[1], aBounds[1] );
1432           theBounds[2] = std::min( theBounds[2], aBounds[2] );
1433           theBounds[3] = std::max( theBounds[3], aBounds[3] );
1434           theBounds[4] = std::min( theBounds[4], aBounds[4] );
1435           theBounds[5] = std::max( theBounds[5], aBounds[5] );
1436           anIsOk = true;
1437         }
1438       }
1439     }
1440     return anIsOk;
1441   }
1442
1443 #ifndef DISABLE_PLOT2DVIEWER
1444   //================================================================================
1445   /*!
1446    * \brief Find all SMESH_Actor's in the View Window.
1447    * If actor constains Plot2d_Histogram object remove it from each Plot2d Viewer.
1448    */
1449   //================================================================================
1450
1451   void ClearPlot2Viewers( SUIT_ViewWindow* theWindow )
1452   {
1453     if ( SVTK_ViewWindow* aViewWindow = GetVtkViewWindow(theWindow) ) {
1454       vtkRenderer *aRenderer = aViewWindow->getRenderer();
1455       VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
1456       vtkActorCollection *aCollection = aCopy.GetActors();
1457       aCollection->InitTraversal();
1458       while(vtkActor *anAct = aCollection->GetNextActor()){
1459         if(SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>(anAct)){
1460           if(anActor->hasIO() && anActor->GetPlot2Histogram() ){
1461             ProcessIn2DViewers(anActor,RemoveFrom2dViewer);
1462           }
1463         }
1464       }
1465     }
1466   }
1467
1468 #endif
1469
1470 } // end of namespace SMESH