src/SMESHGUI/SMESHGUI_VTKUtils.cxx

   1 //  Copyright (C) 2007-2010  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.
  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_Utils.h"
  32 #include "SMESHGUI_Filter.h"
  33 #include "SMESH_ControlsDef.hxx"
  34
  35 #include <SMESH_Actor.h>
  36 #include <SMESH_ActorUtils.h>
  37 #include <SMESH_ObjectDef.h>
  38 #include <SMDS_Mesh.hxx>
  39
  40 // SALOME GUI includes
  41 #include <SUIT_Desktop.h>
  42 #include <SUIT_Session.h>
  43 #include <SUIT_MessageBox.h>
  44 #include <SUIT_ViewManager.h>
  45 #include <SUIT_ResourceMgr.h>
  46
  47 #include <SALOME_ListIO.hxx>
  48 #include <SALOME_ListIteratorOfListIO.hxx>
  49
  50 #include <SVTK_Selector.h>
  51 #include <SVTK_ViewModel.h>
  52 #include <SVTK_ViewWindow.h>
  53
  54 #include <VTKViewer_Algorithm.h>
  55
  56 #include <LightApp_SelectionMgr.h>
  57 #include <SalomeApp_Application.h>
  58 #include <SalomeApp_Study.h>
  59
  60 // SALOME KERNEL includes
  61 #include <utilities.h>
  62
  63 // IDL includes
  64 #include <SALOMEconfig.h>
  65 #include CORBA_CLIENT_HEADER(SMESH_Mesh)
  66 #include CORBA_CLIENT_HEADER(SMESH_Group)
  67
  68 // VTK includes
  69 #include <vtkMath.h>
  70 #include <vtkRenderer.h>
  71 #include <vtkActorCollection.h>
  72 #include <vtkUnstructuredGrid.h>
  73
  74 // OCCT includes
  75 #include <TColStd_IndexedMapOfInteger.hxx>
  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 #if (OCC_VERSION_MAJOR << 16 | OCC_VERSION_MINOR << 8 | OCC_VERSION_MAINTENANCE) > 0x060100
 256       OCC_CATCH_SIGNALS;
 257 #endif
 258       // PAL16774 (Crash after display of many groups). Salome sometimes crashes just
 259       // after or at showing this message, so we do an additional check of available memory
 260 //       char* buf = new char[100*1024];
 261 //       delete [] buf;
 262       SUIT_MessageBox::warning(SMESHGUI::desktop(), QObject::tr("SMESH_WRN_WARNING"),
 263                                QObject::tr("SMESH_VISU_PROBLEM"));
 264     } catch (...) {
 265       // no more memory at all: last resort
 266       MESSAGE_BEGIN ( "SMESHGUI_VTKUtils::OnVisuException(), exception even at showing a message!!!" <<
 267                       std::endl << "Try to remove all visual data..." );
 268       if (theVISU_MemoryReserve) {
 269         delete theVISU_MemoryReserve;
 270         theVISU_MemoryReserve = 0;
 271       }
 272       RemoveAllObjectsWithActors();
 273       SUIT_MessageBox::warning(SMESHGUI::desktop(), QObject::tr("SMESH_WRN_WARNING"),
 274                                QObject::tr("SMESH_VISU_PROBLEM_CLEAR"));
 275       MESSAGE_END ( "...done" );
 276     }
 277   }
 278   //================================================================================
 279   /*!
 280    * \brief Returns an updated visual object
 281    */
 282   //================================================================================
 283
 284   TVisualObjPtr GetVisualObj(int theStudyId, const char* theEntry, bool nulData){
 285     TVisualObjPtr aVisualObj;
 286     TVisualObjCont::key_type aKey(theStudyId,theEntry);
 287     try{
 288 #if (OCC_VERSION_MAJOR << 16 | OCC_VERSION_MINOR << 8 | OCC_VERSION_MAINTENANCE) > 0x060100
 289       OCC_CATCH_SIGNALS;
 290 #endif
 291       TVisualObjCont::iterator anIter = VISUAL_OBJ_CONT.find(aKey);
 292       if(anIter != VISUAL_OBJ_CONT.end()){
 293         aVisualObj = anIter->second;
 294       }else{
 295         SalomeApp_Application* app =
 296           dynamic_cast<SalomeApp_Application*>( SMESHGUI::activeStudy()->application() );
 297         _PTR(Study) aStudy = SMESHGUI::activeStudy()->studyDS();
 298         _PTR(SObject) aSObj = aStudy->FindObjectID(theEntry);
 299         if(aSObj){
 300           _PTR(GenericAttribute) anAttr;
 301           if(aSObj->FindAttribute(anAttr,"AttributeIOR")){
 302             _PTR(AttributeIOR) anIOR = anAttr;
 303             CORBA::String_var aVal = anIOR->Value().c_str();
 304             CORBA::Object_var anObj = app->orb()->string_to_object( aVal.in() );
 305             if(!CORBA::is_nil(anObj)){
 306               //Try narrow to SMESH_Mesh interface
 307               SMESH::SMESH_Mesh_var aMesh = SMESH::SMESH_Mesh::_narrow(anObj);
 308               if(!aMesh->_is_nil()){
 309                 aVisualObj.reset(new SMESH_MeshObj(aMesh));
 310                 TVisualObjCont::value_type aValue(aKey,aVisualObj);
 311                 VISUAL_OBJ_CONT.insert(aValue);
 312               }
 313               //Try narrow to SMESH_Group interface
 314               SMESH::SMESH_GroupBase_var aGroup = SMESH::SMESH_GroupBase::_narrow(anObj);
 315               if(!aGroup->_is_nil()){
 316                 _PTR(SObject) aFatherSObj = aSObj->GetFather();
 317                 if(!aFatherSObj) return aVisualObj;
 318                 aFatherSObj = aFatherSObj->GetFather();
 319                 if(!aFatherSObj) return aVisualObj;
 320                 CORBA::String_var anEntry = aFatherSObj->GetID().c_str();
 321                 TVisualObjPtr aVisObj = GetVisualObj(theStudyId,anEntry.in());
 322                 if(SMESH_MeshObj* aMeshObj = dynamic_cast<SMESH_MeshObj*>(aVisObj.get())){
 323                   aVisualObj.reset(new SMESH_GroupObj(aGroup,aMeshObj));
 324                   TVisualObjCont::value_type aValue(aKey,aVisualObj);
 325                   VISUAL_OBJ_CONT.insert(aValue);
 326                 }
 327               }
 328               //Try narrow to SMESH_subMesh interface
 329               SMESH::SMESH_subMesh_var aSubMesh = SMESH::SMESH_subMesh::_narrow(anObj);
 330               if(!aSubMesh->_is_nil()){
 331                 _PTR(SObject) aFatherSObj = aSObj->GetFather();
 332                 if(!aFatherSObj) return aVisualObj;
 333                 aFatherSObj = aFatherSObj->GetFather();
 334                 if(!aFatherSObj) return aVisualObj;
 335                 CORBA::String_var anEntry = aFatherSObj->GetID().c_str();
 336                 TVisualObjPtr aVisObj = GetVisualObj(theStudyId,anEntry.in());
 337                 if(SMESH_MeshObj* aMeshObj = dynamic_cast<SMESH_MeshObj*>(aVisObj.get())){
 338                   aVisualObj.reset(new SMESH_subMeshObj(aSubMesh,aMeshObj));
 339                   TVisualObjCont::value_type aValue(aKey,aVisualObj);
 340                   VISUAL_OBJ_CONT.insert(aValue);
 341                 }
 342               }
 343             }
 344           }
 345         }
 346       }
 347     }catch(...){
 348       INFOS("GetMeshObj - There is no SMESH_Mesh object for the SALOMEDS::Strudy and Entry!!!");
 349       return TVisualObjPtr();
 350     }
 351     // Update object
 352     bool objModified = false;
 353     if ( aVisualObj ) {
 354       try {
 355 #if (OCC_VERSION_MAJOR << 16 | OCC_VERSION_MINOR << 8 | OCC_VERSION_MAINTENANCE) > 0x060100
 356         OCC_CATCH_SIGNALS;
 357 #endif
 358         //MESSAGE("GetVisualObj");
 359         if (nulData)
 360                 objModified = aVisualObj->NulData();
 361         else
 362           objModified = aVisualObj->Update();
 363       }
 364       catch (...) {
 365 #ifdef _DEBUG_
 366         MESSAGE ( "Exception in SMESHGUI_VTKUtils::GetVisualObj()" );
 367 #endif
 368         RemoveVisualObjectWithActors( theEntry ); // remove this object
 369         OnVisuException();
 370         aVisualObj.reset();
 371       }
 372     }
 373
 374     if ( objModified ) {
 375       // PAL16631. Mesurements showed that to show aVisualObj in SHADING(default) mode,
 376       // ~10 times more memory is used than it occupies.
 377       // Warn the user if there is less free memory than 30 sizes of a grid
 378       // TODO: estimate memory usage in other modes and take current mode into account
 379       int freeMB = SMDS_Mesh::CheckMemory(true);
 380       int usedMB = aVisualObj->GetUnstructuredGrid()->GetActualMemorySize() / 1024;
 381       if ( freeMB > 0 && usedMB * 30 > freeMB ) {
 382 #ifdef _DEBUG_
 383         MESSAGE ( "SMESHGUI_VTKUtils::GetVisualObj(), freeMB=" << freeMB
 384                << ", usedMB=" << usedMB );
 385 #endif
 386 //        bool continu = false;
 387 //        if ( usedMB * 10 > freeMB )
 388 //          // even dont try to show
 389 //          SUIT_MessageBox::warning(SMESHGUI::desktop(), QObject::tr("SMESH_WRN_WARNING"),
 390 //                                   QObject::tr("SMESH_NO_MESH_VISUALIZATION"));
 391 //        else
 392 //          // there is a chance to succeed
 393 //          continu = SUIT_MessageBox::warning
 394 //            (SMESHGUI::desktop(),
 395 //             QObject::tr("SMESH_WRN_WARNING"),
 396 //             QObject::tr("SMESH_CONTINUE_MESH_VISUALIZATION"),
 397 //             SUIT_MessageBox::Yes | SUIT_MessageBox::No,
 398 //             SUIT_MessageBox::Yes ) == SUIT_MessageBox::Yes;
 399 //        if ( !continu ) {
 400 //          // remove the corresponding actors from all views
 401 //          RemoveVisualObjectWithActors( theEntry );
 402 //          aVisualObj.reset();
 403 //        }
 404       }
 405     }
 406
 407     return aVisualObj;
 408   }
 409
 410
 411   /*! Return active view window, if it instantiates SVTK_ViewWindow class,
 412    *  overwise find or create corresponding view window, make it active and return it.
 413    *  \note Active VVTK_ViewWindow can be returned, because it inherits SVTK_ViewWindow.
 414    */
 415   SVTK_ViewWindow* GetViewWindow (const SalomeApp_Module* theModule,
 416                                   bool createIfNotFound)
 417   {
 418     SalomeApp_Application* anApp;
 419     if (theModule)
 420       anApp = theModule->getApp();
 421     else
 422       anApp = dynamic_cast<SalomeApp_Application*>
 423         (SUIT_Session::session()->activeApplication());
 424
 425     if (anApp) {
 426       if (SVTK_ViewWindow* aView = dynamic_cast<SVTK_ViewWindow*>(anApp->desktop()->activeWindow()))
 427         return aView;
 428
 429       SUIT_ViewManager* aViewManager =
 430         anApp->getViewManager(SVTK_Viewer::Type(), createIfNotFound);
 431       if (aViewManager) {
 432         if (SUIT_ViewWindow* aViewWindow = aViewManager->getActiveView()) {
 433           if (SVTK_ViewWindow* aView = dynamic_cast<SVTK_ViewWindow*>(aViewWindow)) {
 434             aViewWindow->raise();
 435             aViewWindow->setFocus();
 436             return aView;
 437           }
 438         }
 439       }
 440     }
 441     return NULL;
 442   }
 443
 444   SVTK_ViewWindow* FindVtkViewWindow (SUIT_ViewManager* theMgr,
 445                                       SUIT_ViewWindow * theWindow)
 446   {
 447     if( !theMgr )
 448       return NULL;
 449
 450     QVector<SUIT_ViewWindow*> views = theMgr->getViews();
 451     if( views.contains( theWindow ) )
 452       return GetVtkViewWindow( theWindow );
 453     else
 454       return NULL;
 455   }
 456
 457   SVTK_ViewWindow* GetVtkViewWindow(SUIT_ViewWindow* theWindow){
 458     return dynamic_cast<SVTK_ViewWindow*>(theWindow);
 459   }
 460
 461 /*  SUIT_ViewWindow* GetActiveWindow()
 462   {
 463     SalomeApp_Application* app = dynamic_cast<SalomeApp_Application*>( SUIT_Session::session()->activeApplication() );
 464     if( !app )
 465       return NULL;
 466     SUIT_ViewManager* mgr = app->activeViewManager();
 467     if( mgr )
 468       return mgr->getActiveView();
 469     else
 470       return NULL;
 471   }*/
 472
 473   SVTK_ViewWindow* GetCurrentVtkView(){
 474     return GetVtkViewWindow( GetActiveWindow() );
 475   }
 476
 477
 478   void RepaintCurrentView()
 479   {
 480     if (SVTK_ViewWindow* wnd = GetCurrentVtkView())
 481     {
 482       try {
 483 #if (OCC_VERSION_MAJOR << 16 | OCC_VERSION_MINOR << 8 | OCC_VERSION_MAINTENANCE) > 0x060100
 484         OCC_CATCH_SIGNALS;
 485 #endif
 486         wnd->getRenderer()->Render();
 487         wnd->Repaint(false);
 488       }
 489       catch (...) {
 490 #ifdef _DEBUG_
 491         MESSAGE ( "Exception in SMESHGUI_VTKUtils::RepaintCurrentView()" );
 492 #endif
 493         OnVisuException();
 494       }
 495     }
 496   }
 497
 498   void RepaintViewWindow(SVTK_ViewWindow* theWindow)
 499   {
 500     try {
 501 #if (OCC_VERSION_MAJOR << 16 | OCC_VERSION_MINOR << 8 | OCC_VERSION_MAINTENANCE) > 0x060100
 502       OCC_CATCH_SIGNALS;
 503 #endif
 504       theWindow->getRenderer()->Render();
 505       theWindow->Repaint();
 506     }
 507     catch (...) {
 508 #ifdef _DEBUG_
 509       MESSAGE ( "Exception in SMESHGUI_VTKUtils::RepaintViewWindow(SVTK_ViewWindow*)" );
 510 #endif
 511       OnVisuException();
 512     }
 513   }
 514
 515   void RenderViewWindow(SVTK_ViewWindow* theWindow)
 516   {
 517     try {
 518 #if (OCC_VERSION_MAJOR << 16 | OCC_VERSION_MINOR << 8 | OCC_VERSION_MAINTENANCE) > 0x060100
 519       OCC_CATCH_SIGNALS;
 520 #endif
 521       theWindow->getRenderer()->Render();
 522       theWindow->Repaint();
 523     }
 524     catch (...) {
 525 #ifdef _DEBUG_
 526       MESSAGE ( "Exception in SMESHGUI_VTKUtils::RenderViewWindow(SVTK_ViewWindow*)" );
 527 #endif
 528       OnVisuException();
 529     }
 530   }
 531
 532   void FitAll(){
 533     if(SVTK_ViewWindow* wnd = GetCurrentVtkView() ){
 534       try {
 535 #if (OCC_VERSION_MAJOR << 16 | OCC_VERSION_MINOR << 8 | OCC_VERSION_MAINTENANCE) > 0x060100
 536         OCC_CATCH_SIGNALS;
 537 #endif
 538         wnd->onFitAll();
 539         wnd->Repaint();
 540       }
 541       catch (...) {
 542 #ifdef _DEBUG_
 543         MESSAGE ( "Exception in SMESHGUI_VTKUtils::FitAll()" );
 544 #endif
 545         OnVisuException();
 546       }
 547     }
 548   }
 549
 550
 551   SMESH_Actor* FindActorByEntry(SUIT_ViewWindow *theWindow,
 552                                 const char* theEntry)
 553   {
 554     if(SVTK_ViewWindow* aViewWindow = GetVtkViewWindow(theWindow)){
 555       vtkRenderer *aRenderer = aViewWindow->getRenderer();
 556       VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
 557       vtkActorCollection *aCollection = aCopy.GetActors();
 558       aCollection->InitTraversal();
 559       while(vtkActor *anAct = aCollection->GetNextActor()){
 560         if(SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>(anAct)){
 561           if(anActor->hasIO()){
 562             Handle(SALOME_InteractiveObject) anIO = anActor->getIO();
 563             if(anIO->hasEntry() && strcmp(anIO->getEntry(),theEntry) == 0){
 564               return anActor;
 565             }
 566           }
 567         }
 568       }
 569     }
 570     return NULL;
 571   }
 572
 573
 574   SMESH_Actor* FindActorByEntry(const char* theEntry){
 575     return FindActorByEntry(GetActiveWindow(),theEntry);
 576   }
 577
 578
 579   SMESH_Actor* FindActorByObject(CORBA::Object_ptr theObject){
 580     SalomeApp_Application* app = dynamic_cast<SalomeApp_Application*>( SUIT_Session::session()->activeApplication() );
 581     if( !app )
 582       return NULL;
 583
 584     if(!CORBA::is_nil(theObject)){
 585       _PTR(Study) aStudy = GetActiveStudyDocument();
 586       CORBA::String_var anIOR = app->orb()->object_to_string( theObject );
 587       _PTR(SObject) aSObject = aStudy->FindObjectIOR(anIOR.in());
 588       if(aSObject){
 589         CORBA::String_var anEntry = aSObject->GetID().c_str();
 590         return FindActorByEntry(anEntry.in());
 591       }
 592     }
 593     return NULL;
 594   }
 595
 596
 597   SMESH_Actor* CreateActor(_PTR(Study) theStudy,
 598                            const char* theEntry,
 599                            int theIsClear)
 600   {
 601     SMESH_Actor *anActor = NULL;
 602     CORBA::Long anId = theStudy->StudyId();
 603     if(TVisualObjPtr aVisualObj = GetVisualObj(anId,theEntry)){
 604       _PTR(SObject) aSObj = theStudy->FindObjectID(theEntry);
 605       if(aSObj){
 606         _PTR(GenericAttribute) anAttr;
 607         if(aSObj->FindAttribute(anAttr,"AttributeName")){
 608           _PTR(AttributeName) aName = anAttr;
 609           std::string aNameVal = aName->Value();
 610           anActor = SMESH_Actor::New(aVisualObj,theEntry,aNameVal.c_str(),theIsClear);
 611         }
 612
 613         SMESH::SMESH_GroupBase_var aGroup = SMESH::SMESH_GroupBase::_narrow( SMESH::SObjectToObject( aSObj ));
 614         if(!CORBA::is_nil(aGroup) && anActor)
 615         {
 616           SALOMEDS::Color aColor = aGroup->GetColor();
 617           if( !( aColor.R > 0 || aColor.G > 0 || aColor.B > 0 ) )
 618           {
 619             int r = 0, g = 0, b = 0;
 620             SMESH::GetColor( "SMESH", "fill_color", r, g, b, QColor( 0, 170, 255 ) );
 621             aColor.R = (float)r / 255.0;
 622             aColor.G = (float)g / 255.0;
 623             aColor.B = (float)b / 255.0;
 624             aGroup->SetColor( aColor );
 625           }
 626           if( aGroup->GetType() == SMESH::NODE )
 627             anActor->SetNodeColor( aColor.R, aColor.G, aColor.B );
 628           else if( aGroup->GetType() == SMESH::EDGE )
 629             anActor->SetEdgeColor( aColor.R, aColor.G, aColor.B );
 630           else if( aGroup->GetType() == SMESH::ELEM0D )
 631             anActor->Set0DColor( aColor.R, aColor.G, aColor.B );
 632           else
 633             anActor->SetSufaceColor( aColor.R, aColor.G, aColor.B );
 634         }
 635       }
 636     }
 637     MESSAGE("CreateActor " << anActor);
 638     if( anActor )
 639       if( SMESHGUI* aSMESHGUI = SMESHGUI::GetSMESHGUI() )
 640         aSMESHGUI->addActorAsObserver( anActor );
 641     return anActor;
 642   }
 643
 644
 645   void DisplayActor( SUIT_ViewWindow *theWnd, SMESH_Actor* theActor){
 646     if(SVTK_ViewWindow* vtkWnd = GetVtkViewWindow(theWnd)){
 647       try {
 648 #if (OCC_VERSION_MAJOR << 16 | OCC_VERSION_MINOR << 8 | OCC_VERSION_MAINTENANCE) > 0x060100
 649         OCC_CATCH_SIGNALS;
 650 #endif
 651         MESSAGE("DisplayActor " << theActor);
 652         vtkWnd->AddActor(theActor);
 653         vtkWnd->Repaint();
 654       }
 655       catch (...) {
 656 #ifdef _DEBUG_
 657         MESSAGE ( "Exception in SMESHGUI_VTKUtils::DisplayActor()" );
 658 #endif
 659         OnVisuException();
 660       }
 661     }
 662   }
 663
 664
 665   void RemoveActor( SUIT_ViewWindow *theWnd, SMESH_Actor* theActor){
 666     if(SVTK_ViewWindow* vtkWnd = GetVtkViewWindow(theWnd)){
 667         MESSAGE("RemoveActor " << theActor);
 668       vtkWnd->RemoveActor(theActor);
 669       if(theActor->hasIO()){
 670         Handle(SALOME_InteractiveObject) anIO = theActor->getIO();
 671         if(anIO->hasEntry()){
 672           std::string anEntry = anIO->getEntry();
 673           SalomeApp_Study* aStudy = dynamic_cast<SalomeApp_Study*>( vtkWnd->getViewManager()->study() );
 674           int aStudyId = aStudy->id();
 675           TVisualObjCont::key_type aKey(aStudyId,anEntry);
 676           VISUAL_OBJ_CONT.erase(aKey);
 677         }
 678       }
 679       theActor->Delete();
 680       vtkWnd->Repaint();
 681     }
 682   }
 683
 684   //================================================================================
 685   /*!
 686    * \brief Return true if there are no SMESH actors in a view
 687    */
 688   //================================================================================
 689
 690   bool noSmeshActors(SUIT_ViewWindow *theWnd)
 691   {
 692     if(SVTK_ViewWindow* aViewWindow = GetVtkViewWindow(theWnd)) {
 693       vtkRenderer *aRenderer = aViewWindow->getRenderer();
 694       VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
 695       vtkActorCollection *aCollection = aCopy.GetActors();
 696       aCollection->InitTraversal();
 697       while(vtkActor *anAct = aCollection->GetNextActor())
 698         if(dynamic_cast<SMESH_Actor*>(anAct))
 699           return false;
 700     }
 701     return true;
 702   }
 703
 704   bool UpdateView(SUIT_ViewWindow *theWnd, EDisplaing theAction, const char* theEntry)
 705   {
 706         //MESSAGE("UpdateView");
 707     bool OK = false;
 708     SVTK_ViewWindow* aViewWnd = GetVtkViewWindow(theWnd);
 709     if (!aViewWnd)
 710       return OK;
 711
 712     SVTK_ViewWindow* vtkWnd = GetVtkViewWindow(theWnd);
 713     if (!vtkWnd)
 714       return OK;
 715
 716     SalomeApp_Study* aStudy = dynamic_cast<SalomeApp_Study*>( vtkWnd->getViewManager()->study() );
 717
 718     if (!aStudy)
 719       return OK;
 720
 721     {
 722       OK = true;
 723       vtkRenderer *aRenderer = aViewWnd->getRenderer();
 724       VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
 725       vtkActorCollection *aCollection = aCopy.GetActors();
 726       aCollection->InitTraversal();
 727
 728       switch (theAction) {
 729       case eDisplayAll: {
 730         while (vtkActor *anAct = aCollection->GetNextActor()) {
 731           if (SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>(anAct)) {
 732                 MESSAGE("--- display " << anActor);
 733             anActor->SetVisibility(true);
 734
 735             if(anActor->hasIO()){
 736               Handle(SALOME_InteractiveObject) anIO = anActor->getIO();
 737               if(anIO->hasEntry()){
 738                 aStudy->setVisibilityState(anIO->getEntry(), Qtx::ShownState);
 739               }
 740             }
 741           }
 742         }
 743         break;
 744       }
 745       case eDisplayOnly:
 746       case eEraseAll: {
 747         //MESSAGE("---case eDisplayOnly");
 748         while (vtkActor *anAct = aCollection->GetNextActor()) {
 749           if (SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>(anAct)) {
 750                 //MESSAGE("--- erase " << anActor);
 751             anActor->SetVisibility(false);
 752           }
 753         }
 754         aStudy->setVisibilityStateForAll(Qtx::HiddenState);
 755       }
 756       default: {
 757         if (SMESH_Actor *anActor = FindActorByEntry(theWnd,theEntry)) {
 758           switch (theAction) {
 759             case eDisplay:
 760             case eDisplayOnly:
 761                 //MESSAGE("--- display " << anActor);
 762               anActor->Update();
 763               anActor->SetVisibility(true);
 764               if (theAction == eDisplayOnly) aRenderer->ResetCameraClippingRange();
 765               aStudy->setVisibilityState(theEntry, Qtx::ShownState);
 766               break;
 767             case eErase:
 768                 //MESSAGE("--- erase " << anActor);
 769               anActor->SetVisibility(false);
 770               aStudy->setVisibilityState(theEntry, Qtx::HiddenState);
 771               break;
 772           }
 773         } else {
 774           switch (theAction) {
 775           case eDisplay:
 776           case eDisplayOnly:
 777             {
 778                 //MESSAGE("---");
 779               SalomeApp_Study* aStudy = dynamic_cast<SalomeApp_Study*>(theWnd->getViewManager()->study());
 780               _PTR(Study) aDocument = aStudy->studyDS();
 781               // Pass non-visual objects (hypotheses, etc.), return true in this case
 782               CORBA::Long anId = aDocument->StudyId();
 783               TVisualObjPtr aVisualObj;
 784               if ( (aVisualObj = GetVisualObj(anId,theEntry)) && aVisualObj->IsValid())
 785               {
 786                 if ((anActor = CreateActor(aDocument,theEntry,true))) {
 787                   bool needFitAll = noSmeshActors(theWnd); // fit for the first object only
 788                   DisplayActor(theWnd,anActor);
 789                   aStudy->setVisibilityState(theEntry, Qtx::ShownState);
 790                   // FitAll(); - PAL16770(Display of a group performs an automatic fit all)
 791                   if (needFitAll) FitAll();
 792                 } else {
 793                   OK = false;
 794                 }
 795               }
 796               break;
 797             }
 798           }
 799         }
 800       }
 801       }
 802     }
 803     return OK;
 804   }
 805
 806
 807   bool UpdateView(EDisplaing theAction, const char* theEntry){
 808         //MESSAGE("UpdateView");
 809     SalomeApp_Study* aStudy = dynamic_cast< SalomeApp_Study* >( GetActiveStudy() );
 810     SalomeApp_Application* app = dynamic_cast< SalomeApp_Application* >( aStudy->application() );
 811     SUIT_ViewWindow *aWnd = app->activeViewManager()->getActiveView();
 812     return UpdateView(aWnd,theAction,theEntry);
 813   }
 814
 815   void UpdateView(){
 816     if(SVTK_ViewWindow* aWnd = SMESH::GetCurrentVtkView()){
 817       LightApp_SelectionMgr* mgr = SMESHGUI::selectionMgr();
 818       SALOME_ListIO selected; mgr->selectedObjects( selected );
 819
 820       if( selected.Extent() == 0){
 821         vtkRenderer* aRenderer = aWnd->getRenderer();
 822         VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
 823         vtkActorCollection *aCollection = aCopy.GetActors();
 824         aCollection->InitTraversal();
 825         while(vtkActor *anAct = aCollection->GetNextActor()){
 826           if(SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>(anAct)){
 827             if(anActor->hasIO())
 828               if (!Update(anActor->getIO(),anActor->GetVisibility()))
 829                 break; // avoid multiple warinings if visu failed
 830           }
 831         }
 832       }else{
 833         SALOME_ListIteratorOfListIO anIter( selected );
 834         for( ; anIter.More(); anIter.Next()){
 835           Handle(SALOME_InteractiveObject) anIO = anIter.Value();
 836           if ( !Update(anIO,true) )
 837             break; // avoid multiple warinings if visu failed
 838         }
 839       }
 840       RepaintCurrentView();
 841     }
 842   }
 843
 844
 845   bool Update(const Handle(SALOME_InteractiveObject)& theIO, bool theDisplay)
 846   {
 847         MESSAGE("Update");
 848     _PTR(Study) aStudy = GetActiveStudyDocument();
 849     CORBA::Long anId = aStudy->StudyId();
 850     if ( TVisualObjPtr aVisualObj = SMESH::GetVisualObj(anId,theIO->getEntry())) {
 851       if ( theDisplay )
 852         UpdateView(SMESH::eDisplay,theIO->getEntry());
 853       return true;
 854     }
 855     return false;
 856   }
 857
 858   bool UpdateNulData(const Handle(SALOME_InteractiveObject)& theIO, bool theDisplay)
 859   {
 860         MESSAGE("UpdateNulData");
 861     _PTR(Study) aStudy = GetActiveStudyDocument();
 862     CORBA::Long anId = aStudy->StudyId();
 863     if ( TVisualObjPtr aVisualObj = SMESH::GetVisualObj(anId,theIO->getEntry(), true)) {
 864       if ( theDisplay )
 865         UpdateView(SMESH::eDisplay,theIO->getEntry());
 866       return true;
 867     }
 868     return false;
 869   }
 870
 871   void UpdateSelectionProp( SMESHGUI* theModule ) {
 872     if( !theModule )
 873       return;
 874
 875     SalomeApp_Application* app = dynamic_cast< SalomeApp_Application* >( theModule->application() );
 876     if( !app )
 877     {
 878       MESSAGE( "UpdateSelectionProp: Application is null" );
 879       return;
 880     }
 881
 882     SUIT_ViewManager* vm = app->activeViewManager();
 883     if( !vm )
 884     {
 885       MESSAGE( "UpdateSelectionProp: View manager is null" );
 886       return;
 887     }
 888
 889     QVector<SUIT_ViewWindow*> views = vm->getViews();
 890
 891     SUIT_ResourceMgr* mgr = SMESH::GetResourceMgr( theModule );
 892     if( !mgr )
 893     {
 894       MESSAGE( "UpdateSelectionProp: Resource manager is null" );
 895       return;
 896     }
 897
 898     QColor aHiColor = mgr->colorValue( "SMESH", "selection_object_color", Qt::white ),
 899            aSelColor = mgr->colorValue( "SMESH", "selection_element_color", Qt::yellow ),
 900            aPreColor = mgr->colorValue( "SMESH", "highlight_color", Qt::cyan );
 901
 902     int SW = mgr->integerValue( "SMESH", "selection_width", 5 ),
 903         PW = mgr->integerValue( "SMESH", "highlight_width", 5 );
 904
 905     // adjust highlight_width to the width of mesh entities
 906     int aElem0DSize = mgr->integerValue("SMESH", "elem0d_size", 5);
 907     int aLineWidth  = mgr->integerValue("SMESH", "element_width", 1);
 908     int maxSize = aElem0DSize;
 909     if (aElem0DSize > maxSize) maxSize = aElem0DSize;
 910     if (aLineWidth > maxSize) maxSize = aLineWidth;
 911     if (PW < maxSize + 2) PW = maxSize + 2;
 912
 913     double SP1 = mgr->doubleValue( "SMESH", "selection_precision_node", 0.025 ),
 914            SP2 = mgr->doubleValue( "SMESH", "selection_precision_element", 0.001 ),
 915            SP3 = mgr->doubleValue( "SMESH", "selection_precision_object", 0.025 );
 916
 917     for ( int i=0, n=views.count(); i<n; i++ ){
 918       // update VTK viewer properties
 919       if(SVTK_ViewWindow* aVtkView = GetVtkViewWindow( views[i] )){
 920         // mesh element selection
 921         aVtkView->SetSelectionProp(aSelColor.red()/255.,
 922                                    aSelColor.green()/255.,
 923                                    aSelColor.blue()/255.,
 924                                    SW );
 925         // tolerances
 926         aVtkView->SetSelectionTolerance(SP1, SP2, SP3);
 927
 928         // pre-selection
 929         aVtkView->SetPreselectionProp(aPreColor.red()/255.,
 930                                       aPreColor.green()/255.,
 931                                       aPreColor.blue()/255.,
 932                                       PW);
 933         // update actors
 934         vtkRenderer* aRenderer = aVtkView->getRenderer();
 935         VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
 936         vtkActorCollection *aCollection = aCopy.GetActors();
 937         aCollection->InitTraversal();
 938         while(vtkActor *anAct = aCollection->GetNextActor()){
 939           if(SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>(anAct)){
 940             anActor->SetHighlightColor(aHiColor.red()/255.,
 941                                        aHiColor.green()/255.,
 942                                        aHiColor.blue()/255.);
 943             anActor->SetPreHighlightColor(aPreColor.red()/255.,
 944                                           aPreColor.green()/255.,
 945                                           aPreColor.blue()/255.);
 946           }
 947         }
 948       }
 949     }
 950   }
 951
 952
 953   //----------------------------------------------------------------------------
 954   SVTK_Selector*
 955   GetSelector(SUIT_ViewWindow *theWindow)
 956   {
 957     if(SVTK_ViewWindow* aWnd = GetVtkViewWindow(theWindow))
 958       return aWnd->GetSelector();
 959
 960     return NULL;
 961   }
 962
 963   void SetFilter(const Handle(VTKViewer_Filter)& theFilter,
 964                  SVTK_Selector* theSelector)
 965   {
 966     if (theSelector)
 967       theSelector->SetFilter(theFilter);
 968   }
 969
 970   Handle(VTKViewer_Filter) GetFilter(int theId, SVTK_Selector* theSelector)
 971   {
 972     return theSelector->GetFilter(theId);
 973   }
 974
 975   bool IsFilterPresent(int theId, SVTK_Selector* theSelector)
 976   {
 977     return theSelector->IsFilterPresent(theId);
 978   }
 979
 980   void RemoveFilter(int theId, SVTK_Selector* theSelector)
 981   {
 982     theSelector->RemoveFilter(theId);
 983   }
 984
 985   void RemoveFilters(SVTK_Selector* theSelector)
 986   {
 987     for ( int id = SMESH::NodeFilter; theSelector && id < SMESH::LastFilter; id++ )
 988       theSelector->RemoveFilter( id );
 989   }
 990
 991   bool IsValid(SALOME_Actor* theActor, int theCellId,
 992                SVTK_Selector* theSelector)
 993   {
 994     return theSelector->IsValid(theActor,theCellId);
 995   }
 996
 997
 998   //----------------------------------------------------------------------------
 999   void SetPointRepresentation(bool theIsVisible){
1000     if(SVTK_ViewWindow* aViewWindow = GetCurrentVtkView()){
1001       vtkRenderer *aRenderer = aViewWindow->getRenderer();
1002       VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
1003       vtkActorCollection *aCollection = aCopy.GetActors();
1004       aCollection->InitTraversal();
1005       while(vtkActor *anAct = aCollection->GetNextActor()){
1006         if(SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>(anAct)){
1007           if(anActor->GetVisibility()){
1008             anActor->SetPointRepresentation(theIsVisible);
1009           }
1010         }
1011       }
1012       RepaintCurrentView();
1013     }
1014   }
1015
1016
1017   void SetPickable(SMESH_Actor* theActor){
1018     if(SVTK_ViewWindow* aWnd = GetCurrentVtkView()){
1019       int anIsAllPickable = (theActor == NULL);
1020       vtkRenderer *aRenderer = aWnd->getRenderer();
1021       VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
1022       vtkActorCollection *aCollection = aCopy.GetActors();
1023       aCollection->InitTraversal();
1024       while(vtkActor *anAct = aCollection->GetNextActor()){
1025         if(SALOME_Actor *anActor = dynamic_cast<SALOME_Actor*>(anAct)){
1026           if(anActor->GetVisibility()){
1027             anActor->SetPickable(anIsAllPickable);
1028           }
1029         }
1030       }
1031       if(theActor)
1032         theActor->SetPickable(!anIsAllPickable);
1033       RepaintCurrentView();
1034     }
1035   }
1036
1037
1038   //----------------------------------------------------------------------------
1039   int GetNameOfSelectedNodes(SVTK_Selector* theSelector,
1040                              const Handle(SALOME_InteractiveObject)& theIO,
1041                              QString& theName)
1042   {
1043     theName = "";
1044     TColStd_IndexedMapOfInteger aMapIndex;
1045     theSelector->GetIndex(theIO,aMapIndex);
1046
1047     for(int i = 1; i <= aMapIndex.Extent(); i++)
1048       theName += QString(" %1").arg(aMapIndex(i));
1049
1050     return aMapIndex.Extent();
1051   }
1052
1053   int GetNameOfSelectedElements(SVTK_Selector* theSelector,
1054                                 const Handle(SALOME_InteractiveObject)& theIO,
1055                                 QString& theName)
1056   {
1057     theName = "";
1058     TColStd_IndexedMapOfInteger aMapIndex;
1059     theSelector->GetIndex(theIO,aMapIndex);
1060
1061     typedef std::set<int> TIdContainer;
1062     TIdContainer anIdContainer;
1063     for( int i = 1; i <= aMapIndex.Extent(); i++)
1064       anIdContainer.insert(aMapIndex(i));
1065
1066     TIdContainer::const_iterator anIter = anIdContainer.begin();
1067     for( ; anIter != anIdContainer.end(); anIter++)
1068       theName += QString(" %1").arg(*anIter);
1069
1070     return aMapIndex.Extent();
1071   }
1072
1073
1074   int GetEdgeNodes(SVTK_Selector* theSelector,
1075                    const TVisualObjPtr& theVisualObject,
1076                    int& theId1,
1077                    int& theId2)
1078   {
1079     const SALOME_ListIO& selected = theSelector->StoredIObjects();
1080
1081     if ( selected.Extent() != 1 )
1082       return -1;
1083
1084     Handle(SALOME_InteractiveObject) anIO = selected.First();
1085     if ( anIO.IsNull() || !anIO->hasEntry() )
1086       return -1;
1087
1088     TColStd_IndexedMapOfInteger aMapIndex;
1089     theSelector->GetIndex( anIO, aMapIndex );
1090     if ( aMapIndex.Extent() != 2 )
1091       return -1;
1092
1093     int anObjId = -1, anEdgeNum = -1;
1094     for ( int i = 1; i <= aMapIndex.Extent(); i++ ) {
1095       int aVal = aMapIndex( i );
1096       if ( aVal > 0 )
1097         anObjId = aVal;
1098       else
1099         anEdgeNum = abs( aVal ) - 1;
1100     }
1101
1102     if ( anObjId == -1 || anEdgeNum == -1 )
1103       return -1;
1104
1105     return theVisualObject->GetEdgeNodes( anObjId, anEdgeNum, theId1, theId2 ) ? 1 : -1;
1106   }
1107
1108   //----------------------------------------------------------------------------
1109   int GetNameOfSelectedNodes(LightApp_SelectionMgr *theMgr,
1110                              const Handle(SALOME_InteractiveObject)& theIO,
1111                              QString& theName)
1112   {
1113     theName = "";
1114     if(theIO->hasEntry()){
1115       if(FindActorByEntry(theIO->getEntry())){
1116         TColStd_IndexedMapOfInteger aMapIndex;
1117         theMgr->GetIndexes(theIO,aMapIndex);
1118         for(int i = 1; i <= aMapIndex.Extent(); i++){
1119           theName += QString(" %1").arg(aMapIndex(i));
1120         }
1121         return aMapIndex.Extent();
1122       }
1123     }
1124     return -1;
1125   }
1126
1127   int GetNameOfSelectedNodes(LightApp_SelectionMgr *theMgr, QString& theName){
1128     theName = "";
1129     SALOME_ListIO selected; theMgr->selectedObjects( selected );
1130     if(selected.Extent() == 1){
1131       Handle(SALOME_InteractiveObject) anIO = selected.First();
1132       return GetNameOfSelectedNodes(theMgr,anIO,theName);
1133     }
1134     return -1;
1135   }
1136
1137
1138   int GetNameOfSelectedElements(LightApp_SelectionMgr *theMgr,
1139                                 const Handle(SALOME_InteractiveObject)& theIO,
1140                                 QString& theName)
1141   {
1142     theName = "";
1143     if(theIO->hasEntry()){
1144       if(FindActorByEntry(theIO->getEntry())){
1145         TColStd_IndexedMapOfInteger aMapIndex;
1146         theMgr->GetIndexes(theIO,aMapIndex);
1147         typedef std::set<int> TIdContainer;
1148         TIdContainer anIdContainer;
1149         for( int i = 1; i <= aMapIndex.Extent(); i++)
1150           anIdContainer.insert(aMapIndex(i));
1151         TIdContainer::const_iterator anIter = anIdContainer.begin();
1152         for( ; anIter != anIdContainer.end(); anIter++){
1153           theName += QString(" %1").arg(*anIter);
1154         }
1155         return aMapIndex.Extent();
1156       }
1157     }
1158     return -1;
1159   }
1160
1161
1162   int GetNameOfSelectedElements(LightApp_SelectionMgr *theMgr, QString& theName)
1163   {
1164     theName = "";
1165     SALOME_ListIO selected; theMgr->selectedObjects( selected );
1166
1167     if( selected.Extent() == 1){
1168       Handle(SALOME_InteractiveObject) anIO = selected.First();
1169       return GetNameOfSelectedElements(theMgr,anIO,theName);
1170     }
1171     return -1;
1172   }
1173
1174   int GetSelected(LightApp_SelectionMgr*       theMgr,
1175                   TColStd_IndexedMapOfInteger& theMap,
1176                   const bool                   theIsElement)
1177   {
1178     theMap.Clear();
1179     SALOME_ListIO selected; theMgr->selectedObjects( selected );
1180
1181     if ( selected.Extent() == 1 )
1182     {
1183       Handle(SALOME_InteractiveObject) anIO = selected.First();
1184       if ( anIO->hasEntry() ) {
1185         theMgr->GetIndexes( anIO, theMap );
1186       }
1187     }
1188     return theMap.Extent();
1189   }
1190
1191
1192   int GetEdgeNodes( LightApp_SelectionMgr* theMgr, int& theId1, int& theId2 )
1193   {
1194     SALOME_ListIO selected; theMgr->selectedObjects( selected );
1195
1196     if ( selected.Extent() != 1 )
1197       return -1;
1198
1199     Handle(SALOME_InteractiveObject) anIO = selected.First();
1200     if ( anIO.IsNull() || !anIO->hasEntry() )
1201       return -1;
1202
1203     SMESH_Actor *anActor = SMESH::FindActorByEntry( anIO->getEntry() );
1204     if ( anActor == 0 )
1205       return -1;
1206
1207     TColStd_IndexedMapOfInteger aMapIndex;
1208     theMgr->GetIndexes( anIO, aMapIndex );
1209     if ( aMapIndex.Extent() != 2 )
1210       return -1;
1211
1212     int anObjId = -1, anEdgeNum = -1;
1213     for ( int i = 1; i <= aMapIndex.Extent(); i++ ) {
1214       int aVal = aMapIndex( i );
1215       if ( aVal > 0 )
1216         anObjId = aVal;
1217       else
1218         anEdgeNum = abs( aVal );
1219     }
1220
1221     if ( anObjId == -1 || anEdgeNum == -1 )
1222       return -1;
1223
1224     return anActor->GetObject()->GetEdgeNodes( anObjId, anEdgeNum, theId1, theId2 ) ? 1 : -1;
1225   }
1226
1227   void SetControlsPrecision( const long theVal )
1228   {
1229     if( SVTK_ViewWindow* aWnd = SMESH::GetCurrentVtkView() )
1230     {
1231       vtkRenderer *aRenderer = aWnd->getRenderer();
1232       VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
1233       vtkActorCollection *aCollection = aCopy.GetActors();
1234       aCollection->InitTraversal();
1235
1236       while ( vtkActor *anAct = aCollection->GetNextActor())
1237       {
1238         if ( SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>( anAct ) )
1239         {
1240           anActor->SetControlsPrecision( theVal );
1241           anActor->SetControlMode( anActor->GetControlMode() );
1242         }
1243       }
1244
1245     }
1246   }
1247
1248   //----------------------------------------------------------------------------
1249   // internal function
1250   void ComputeBoundsParam( vtkFloatingPointType theBounds[6],
1251                            vtkFloatingPointType theDirection[3],
1252                            vtkFloatingPointType theMinPnt[3],
1253                            vtkFloatingPointType& theMaxBoundPrj,
1254                            vtkFloatingPointType& theMinBoundPrj )
1255   {
1256     //Enlarge bounds in order to avoid conflicts of precision
1257     for(int i = 0; i < 6; i += 2){
1258       static double EPS = 1.0E-3;
1259       vtkFloatingPointType aDelta = (theBounds[i+1] - theBounds[i])*EPS;
1260       theBounds[i] -= aDelta;
1261       theBounds[i+1] += aDelta;
1262     }
1263
1264     vtkFloatingPointType aBoundPoints[8][3] = { {theBounds[0],theBounds[2],theBounds[4]},
1265                                                 {theBounds[1],theBounds[2],theBounds[4]},
1266                                                 {theBounds[0],theBounds[3],theBounds[4]},
1267                                                 {theBounds[1],theBounds[3],theBounds[4]},
1268                                                 {theBounds[0],theBounds[2],theBounds[5]},
1269                                                 {theBounds[1],theBounds[2],theBounds[5]},
1270                                                 {theBounds[0],theBounds[3],theBounds[5]},
1271                                                 {theBounds[1],theBounds[3],theBounds[5]}};
1272
1273     int aMaxId = 0, aMinId = aMaxId;
1274     theMaxBoundPrj = vtkMath::Dot(theDirection,aBoundPoints[aMaxId]);
1275     theMinBoundPrj = theMaxBoundPrj;
1276     for(int i = 1; i < 8; i++){
1277       vtkFloatingPointType aTmp = vtkMath::Dot(theDirection,aBoundPoints[i]);
1278       if(theMaxBoundPrj < aTmp){
1279         theMaxBoundPrj = aTmp;
1280         aMaxId = i;
1281       }
1282       if(theMinBoundPrj > aTmp){
1283         theMinBoundPrj = aTmp;
1284         aMinId = i;
1285       }
1286     }
1287     vtkFloatingPointType *aMinPnt = aBoundPoints[aMaxId];
1288     theMinPnt[0] = aMinPnt[0];
1289     theMinPnt[1] = aMinPnt[1];
1290     theMinPnt[2] = aMinPnt[2];
1291   }
1292
1293   // internal function
1294   void DistanceToPosition( vtkFloatingPointType theBounds[6],
1295                            vtkFloatingPointType theDirection[3],
1296                            vtkFloatingPointType theDist,
1297                            vtkFloatingPointType thePos[3] )
1298   {
1299     vtkFloatingPointType aMaxBoundPrj, aMinBoundPrj, aMinPnt[3];
1300     ComputeBoundsParam(theBounds,theDirection,aMinPnt,aMaxBoundPrj,aMinBoundPrj);
1301     vtkFloatingPointType aLength = (aMaxBoundPrj-aMinBoundPrj)*theDist;
1302     thePos[0] = aMinPnt[0]-theDirection[0]*aLength;
1303     thePos[1] = aMinPnt[1]-theDirection[1]*aLength;
1304     thePos[2] = aMinPnt[2]-theDirection[2]*aLength;
1305   }
1306
1307   // internal function (currently unused, left just in case)
1308   void PositionToDistance( vtkFloatingPointType theBounds[6],
1309                            vtkFloatingPointType theDirection[3],
1310                            vtkFloatingPointType thePos[3],
1311                            vtkFloatingPointType& theDist )
1312   {
1313     vtkFloatingPointType aMaxBoundPrj, aMinBoundPrj, aMinPnt[3];
1314     ComputeBoundsParam(theBounds,theDirection,aMinPnt,aMaxBoundPrj,aMinBoundPrj);
1315     vtkFloatingPointType aPrj = vtkMath::Dot(theDirection,thePos);
1316     theDist = (aPrj-aMinBoundPrj)/(aMaxBoundPrj-aMinBoundPrj);
1317   }
1318
1319   bool ComputeClippingPlaneParameters( std::list<vtkActor*> theActorList,
1320                                        vtkFloatingPointType theNormal[3],
1321                                        vtkFloatingPointType theDist,
1322                                        vtkFloatingPointType theBounds[6],
1323                                        vtkFloatingPointType theOrigin[3] )
1324   {
1325     bool anIsOk = false;
1326     theBounds[0] = theBounds[2] = theBounds[4] = VTK_DOUBLE_MAX;
1327     theBounds[1] = theBounds[3] = theBounds[5] = -VTK_DOUBLE_MAX;
1328     std::list<vtkActor*>::iterator anIter = theActorList.begin();
1329     for( ; anIter != theActorList.end(); anIter++ ) {
1330       if( vtkActor* aVTKActor = *anIter ) {
1331         if( SMESH_Actor* anActor = SMESH_Actor::SafeDownCast( aVTKActor ) ) {
1332           vtkFloatingPointType aBounds[6];
1333           anActor->GetUnstructuredGrid()->GetBounds( aBounds );
1334           theBounds[0] = std::min( theBounds[0], aBounds[0] );
1335           theBounds[1] = std::max( theBounds[1], aBounds[1] );
1336           theBounds[2] = std::min( theBounds[2], aBounds[2] );
1337           theBounds[3] = std::max( theBounds[3], aBounds[3] );
1338           theBounds[4] = std::min( theBounds[4], aBounds[4] );
1339           theBounds[5] = std::max( theBounds[5], aBounds[5] );
1340           anIsOk = true;
1341         }
1342       }
1343     }
1344
1345     if( !anIsOk )
1346       return false;
1347
1348     DistanceToPosition( theBounds, theNormal, theDist, theOrigin );
1349     return true;
1350   }
1351
1352 #ifndef DISABLE_PLOT2DVIEWER
1353   //================================================================================
1354   /*!
1355    * \brief Find all SMESH_Actor's in the View Window.
1356    * If actor constains Plot2d_Histogram object remove it from each Plot2d Viewer.
1357    */
1358   //================================================================================
1359
1360   void ClearPlot2Viewers( SUIT_ViewWindow* theWindow ) {
1361     if(SVTK_ViewWindow* aViewWindow = GetVtkViewWindow(theWindow)){
1362       vtkRenderer *aRenderer = aViewWindow->getRenderer();
1363       VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
1364       vtkActorCollection *aCollection = aCopy.GetActors();
1365       aCollection->InitTraversal();
1366       while(vtkActor *anAct = aCollection->GetNextActor()){
1367         if(SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>(anAct)){
1368           if(anActor->hasIO() && anActor->GetPlot2Histogram() ){
1369             ProcessIn2DViewers(anActor,RemoveFrom2dViewer);
1370           }
1371         }
1372       }
1373     }
1374   }
1375
1376 #endif
1377
1378 } // end of namespace SMESH