src/SMESHGUI/SMESHGUI_VTKUtils.cxx

   1 // Copyright (C) 2007-2012  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       // ~5 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       MESSAGE("SMESHGUI_VTKUtils::GetVisualObj(), freeMB=" << freeMB << ", usedMB=" <<usedMB);
 382       if ( freeMB > 0 && usedMB * 5 > freeMB ) {
 383        bool continu = false;
 384        if ( usedMB * 3 > freeMB )
 385          // even dont try to show
 386          SUIT_MessageBox::warning(SMESHGUI::desktop(), QObject::tr("SMESH_WRN_WARNING"),
 387                                   QObject::tr("SMESH_NO_MESH_VISUALIZATION"));
 388        else
 389          // there is a chance to succeed
 390          continu = SUIT_MessageBox::warning
 391            (SMESHGUI::desktop(),
 392             QObject::tr("SMESH_WRN_WARNING"),
 393             QObject::tr("SMESH_CONTINUE_MESH_VISUALIZATION"),
 394             SUIT_MessageBox::Yes | SUIT_MessageBox::No,
 395             SUIT_MessageBox::Yes ) == SUIT_MessageBox::Yes;
 396        if ( !continu ) {
 397          // remove the corresponding actors from all views
 398          RemoveVisualObjectWithActors( theEntry );
 399          aVisualObj.reset();
 400        }
 401       }
 402     }
 403
 404     return aVisualObj;
 405   }
 406
 407
 408   /*! Return active view window, if it instantiates SVTK_ViewWindow class,
 409    *  overwise find or create corresponding view window, make it active and return it.
 410    *  \note Active VVTK_ViewWindow can be returned, because it inherits SVTK_ViewWindow.
 411    */
 412   SVTK_ViewWindow* GetViewWindow (const SalomeApp_Module* theModule,
 413                                   bool createIfNotFound)
 414   {
 415     SalomeApp_Application* anApp;
 416     if (theModule)
 417       anApp = theModule->getApp();
 418     else
 419       anApp = dynamic_cast<SalomeApp_Application*>
 420         (SUIT_Session::session()->activeApplication());
 421
 422     if (anApp) {
 423       if (SVTK_ViewWindow* aView = dynamic_cast<SVTK_ViewWindow*>(anApp->desktop()->activeWindow()))
 424         return aView;
 425
 426       SUIT_ViewManager* aViewManager =
 427         anApp->getViewManager(SVTK_Viewer::Type(), createIfNotFound);
 428       if (aViewManager) {
 429         if (SUIT_ViewWindow* aViewWindow = aViewManager->getActiveView()) {
 430           if (SVTK_ViewWindow* aView = dynamic_cast<SVTK_ViewWindow*>(aViewWindow)) {
 431             aViewWindow->raise();
 432             aViewWindow->setFocus();
 433             return aView;
 434           }
 435         }
 436       }
 437     }
 438     return NULL;
 439   }
 440
 441   SVTK_ViewWindow* FindVtkViewWindow (SUIT_ViewManager* theMgr,
 442                                       SUIT_ViewWindow * theWindow)
 443   {
 444     if( !theMgr )
 445       return NULL;
 446
 447     QVector<SUIT_ViewWindow*> views = theMgr->getViews();
 448     if( views.contains( theWindow ) )
 449       return GetVtkViewWindow( theWindow );
 450     else
 451       return NULL;
 452   }
 453
 454   SVTK_ViewWindow* GetVtkViewWindow(SUIT_ViewWindow* theWindow){
 455     return dynamic_cast<SVTK_ViewWindow*>(theWindow);
 456   }
 457
 458 /*  SUIT_ViewWindow* GetActiveWindow()
 459   {
 460     SalomeApp_Application* app = dynamic_cast<SalomeApp_Application*>( SUIT_Session::session()->activeApplication() );
 461     if( !app )
 462       return NULL;
 463     SUIT_ViewManager* mgr = app->activeViewManager();
 464     if( mgr )
 465       return mgr->getActiveView();
 466     else
 467       return NULL;
 468   }*/
 469
 470   SVTK_ViewWindow* GetCurrentVtkView(){
 471     return GetVtkViewWindow( GetActiveWindow() );
 472   }
 473
 474
 475   void RepaintCurrentView()
 476   {
 477     if (SVTK_ViewWindow* wnd = GetCurrentVtkView())
 478     {
 479       try {
 480 #if (OCC_VERSION_MAJOR << 16 | OCC_VERSION_MINOR << 8 | OCC_VERSION_MAINTENANCE) > 0x060100
 481         OCC_CATCH_SIGNALS;
 482 #endif
 483         wnd->getRenderer()->Render();
 484         wnd->Repaint(false);
 485       }
 486       catch (...) {
 487 #ifdef _DEBUG_
 488         MESSAGE ( "Exception in SMESHGUI_VTKUtils::RepaintCurrentView()" );
 489 #endif
 490         OnVisuException();
 491       }
 492     }
 493   }
 494
 495   void RepaintViewWindow(SVTK_ViewWindow* theWindow)
 496   {
 497     try {
 498 #if (OCC_VERSION_MAJOR << 16 | OCC_VERSION_MINOR << 8 | OCC_VERSION_MAINTENANCE) > 0x060100
 499       OCC_CATCH_SIGNALS;
 500 #endif
 501       theWindow->getRenderer()->Render();
 502       theWindow->Repaint();
 503     }
 504     catch (...) {
 505 #ifdef _DEBUG_
 506       MESSAGE ( "Exception in SMESHGUI_VTKUtils::RepaintViewWindow(SVTK_ViewWindow*)" );
 507 #endif
 508       OnVisuException();
 509     }
 510   }
 511
 512   void RenderViewWindow(SVTK_ViewWindow* theWindow)
 513   {
 514     try {
 515 #if (OCC_VERSION_MAJOR << 16 | OCC_VERSION_MINOR << 8 | OCC_VERSION_MAINTENANCE) > 0x060100
 516       OCC_CATCH_SIGNALS;
 517 #endif
 518       theWindow->getRenderer()->Render();
 519       theWindow->Repaint();
 520     }
 521     catch (...) {
 522 #ifdef _DEBUG_
 523       MESSAGE ( "Exception in SMESHGUI_VTKUtils::RenderViewWindow(SVTK_ViewWindow*)" );
 524 #endif
 525       OnVisuException();
 526     }
 527   }
 528
 529   void FitAll(){
 530     if(SVTK_ViewWindow* wnd = GetCurrentVtkView() ){
 531       try {
 532 #if (OCC_VERSION_MAJOR << 16 | OCC_VERSION_MINOR << 8 | OCC_VERSION_MAINTENANCE) > 0x060100
 533         OCC_CATCH_SIGNALS;
 534 #endif
 535         wnd->onFitAll();
 536         wnd->Repaint();
 537       }
 538       catch (...) {
 539 #ifdef _DEBUG_
 540         MESSAGE ( "Exception in SMESHGUI_VTKUtils::FitAll()" );
 541 #endif
 542         OnVisuException();
 543       }
 544     }
 545   }
 546
 547
 548   SMESH_Actor* FindActorByEntry(SUIT_ViewWindow *theWindow,
 549                                 const char* theEntry)
 550   {
 551     if(SVTK_ViewWindow* aViewWindow = GetVtkViewWindow(theWindow)){
 552       vtkRenderer *aRenderer = aViewWindow->getRenderer();
 553       VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
 554       vtkActorCollection *aCollection = aCopy.GetActors();
 555       aCollection->InitTraversal();
 556       while(vtkActor *anAct = aCollection->GetNextActor()){
 557         if(SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>(anAct)){
 558           if(anActor->hasIO()){
 559             Handle(SALOME_InteractiveObject) anIO = anActor->getIO();
 560             if(anIO->hasEntry() && strcmp(anIO->getEntry(),theEntry) == 0){
 561               return anActor;
 562             }
 563           }
 564         }
 565       }
 566     }
 567     return NULL;
 568   }
 569
 570
 571   SMESH_Actor* FindActorByEntry(const char* theEntry){
 572     return FindActorByEntry(GetActiveWindow(),theEntry);
 573   }
 574
 575
 576   SMESH_Actor* FindActorByObject(CORBA::Object_ptr theObject){
 577     SalomeApp_Application* app = dynamic_cast<SalomeApp_Application*>( SUIT_Session::session()->activeApplication() );
 578     if( !app )
 579       return NULL;
 580
 581     if(!CORBA::is_nil(theObject)){
 582       _PTR(Study) aStudy = GetActiveStudyDocument();
 583       CORBA::String_var anIOR = app->orb()->object_to_string( theObject );
 584       _PTR(SObject) aSObject = aStudy->FindObjectIOR(anIOR.in());
 585       if(aSObject){
 586         CORBA::String_var anEntry = aSObject->GetID().c_str();
 587         return FindActorByEntry(anEntry.in());
 588       }
 589     }
 590     return NULL;
 591   }
 592
 593
 594   SMESH_Actor* CreateActor(_PTR(Study) theStudy,
 595                            const char* theEntry,
 596                            int theIsClear)
 597   {
 598     SMESH_Actor *anActor = NULL;
 599     CORBA::Long anId = theStudy->StudyId();
 600     if(TVisualObjPtr aVisualObj = GetVisualObj(anId,theEntry)){
 601       _PTR(SObject) aSObj = theStudy->FindObjectID(theEntry);
 602       if(aSObj){
 603         _PTR(GenericAttribute) anAttr;
 604         if(aSObj->FindAttribute(anAttr,"AttributeName")){
 605           _PTR(AttributeName) aName = anAttr;
 606           std::string aNameVal = aName->Value();
 607           anActor = SMESH_Actor::New(aVisualObj,theEntry,aNameVal.c_str(),theIsClear);
 608         }
 609
 610         SMESH::SMESH_GroupBase_var aGroup = SMESH::SMESH_GroupBase::_narrow( SMESH::SObjectToObject( aSObj ));
 611         if(!CORBA::is_nil(aGroup) && anActor)
 612         {
 613           QColor c;int delta;
 614           SMESH::GetColor( "SMESH", "fill_color", c, delta, "0,170,255|-100"  );
 615           SALOMEDS::Color aColor = aGroup->GetColor();
 616           if( !( aColor.R > 0 || aColor.G > 0 || aColor.B > 0 ))
 617           {
 618             aColor.R = (float)c.red() / 255.0;
 619             aColor.G = (float)c.green() / 255.0;
 620             aColor.B = (float)c.blue() / 255.0;
 621             aGroup->SetColor( aColor );
 622           }
 623           if( aGroup->GetType() == SMESH::NODE )
 624             anActor->SetNodeColor( aColor.R, aColor.G, aColor.B );
 625           else if( aGroup->GetType() == SMESH::EDGE )
 626             anActor->SetEdgeColor( aColor.R, aColor.G, aColor.B );
 627           else if( aGroup->GetType() == SMESH::ELEM0D )
 628             anActor->Set0DColor( aColor.R, aColor.G, aColor.B );
 629           else if( aGroup->GetType() == SMESH::BALL )
 630             anActor->SetBallColor( aColor.R, aColor.G, aColor.B );
 631           else
 632             anActor->SetSufaceColor( aColor.R, aColor.G, aColor.B, delta );
 633         }
 634       }
 635     }
 636     MESSAGE("CreateActor " << anActor);
 637     if( anActor )
 638       if( SMESHGUI* aSMESHGUI = SMESHGUI::GetSMESHGUI() )
 639         aSMESHGUI->addActorAsObserver( anActor );
 640     return anActor;
 641   }
 642
 643
 644   void DisplayActor( SUIT_ViewWindow *theWnd, SMESH_Actor* theActor){
 645     if(SVTK_ViewWindow* vtkWnd = GetVtkViewWindow(theWnd)){
 646       try {
 647 #if (OCC_VERSION_MAJOR << 16 | OCC_VERSION_MINOR << 8 | OCC_VERSION_MAINTENANCE) > 0x060100
 648         OCC_CATCH_SIGNALS;
 649 #endif
 650         MESSAGE("DisplayActor " << theActor);
 651         vtkWnd->AddActor(theActor);
 652         vtkWnd->Repaint();
 653       }
 654       catch (...) {
 655 #ifdef _DEBUG_
 656         MESSAGE ( "Exception in SMESHGUI_VTKUtils::DisplayActor()" );
 657 #endif
 658         OnVisuException();
 659       }
 660     }
 661   }
 662
 663
 664   void RemoveActor( SUIT_ViewWindow *theWnd, SMESH_Actor* theActor){
 665     if(SVTK_ViewWindow* vtkWnd = GetVtkViewWindow(theWnd)){
 666         MESSAGE("RemoveActor " << theActor);
 667       vtkWnd->RemoveActor(theActor);
 668       if(theActor->hasIO()){
 669         Handle(SALOME_InteractiveObject) anIO = theActor->getIO();
 670         if(anIO->hasEntry()){
 671           std::string anEntry = anIO->getEntry();
 672           SalomeApp_Study* aStudy = dynamic_cast<SalomeApp_Study*>( vtkWnd->getViewManager()->study() );
 673           int aStudyId = aStudy->id();
 674           TVisualObjCont::key_type aKey(aStudyId,anEntry);
 675           VISUAL_OBJ_CONT.erase(aKey);
 676         }
 677       }
 678       theActor->Delete();
 679       vtkWnd->Repaint();
 680     }
 681   }
 682
 683   //================================================================================
 684   /*!
 685    * \brief Return true if there are no SMESH actors in a view
 686    */
 687   //================================================================================
 688
 689   bool noSmeshActors(SUIT_ViewWindow *theWnd)
 690   {
 691     if(SVTK_ViewWindow* aViewWindow = GetVtkViewWindow(theWnd)) {
 692       vtkRenderer *aRenderer = aViewWindow->getRenderer();
 693       VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
 694       vtkActorCollection *aCollection = aCopy.GetActors();
 695       aCollection->InitTraversal();
 696       while(vtkActor *anAct = aCollection->GetNextActor())
 697         if(dynamic_cast<SMESH_Actor*>(anAct))
 698           return false;
 699     }
 700     return true;
 701   }
 702
 703   bool UpdateView(SUIT_ViewWindow *theWnd, EDisplaing theAction, const char* theEntry)
 704   {
 705         //MESSAGE("UpdateView");
 706     bool OK = false;
 707     SVTK_ViewWindow* aViewWnd = GetVtkViewWindow(theWnd);
 708     if (!aViewWnd)
 709       return OK;
 710
 711     SVTK_ViewWindow* vtkWnd = GetVtkViewWindow(theWnd);
 712     if (!vtkWnd)
 713       return OK;
 714
 715     SalomeApp_Study* aStudy = dynamic_cast<SalomeApp_Study*>( vtkWnd->getViewManager()->study() );
 716
 717     if (!aStudy)
 718       return OK;
 719
 720     {
 721       OK = true;
 722       vtkRenderer *aRenderer = aViewWnd->getRenderer();
 723       VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
 724       vtkActorCollection *aCollection = aCopy.GetActors();
 725       aCollection->InitTraversal();
 726
 727       switch (theAction) {
 728       case eDisplayAll: {
 729         while (vtkActor *anAct = aCollection->GetNextActor()) {
 730           if (SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>(anAct)) {
 731                 MESSAGE("--- display " << anActor);
 732             anActor->SetVisibility(true);
 733
 734             if(anActor->hasIO()){
 735               Handle(SALOME_InteractiveObject) anIO = anActor->getIO();
 736               if(anIO->hasEntry()){
 737                 aStudy->setVisibilityState(anIO->getEntry(), Qtx::ShownState);
 738               }
 739             }
 740           }
 741         }
 742         break;
 743       }
 744       case eDisplayOnly:
 745       case eEraseAll: {
 746         //MESSAGE("---case eDisplayOnly");
 747         while (vtkActor *anAct = aCollection->GetNextActor()) {
 748           if (SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>(anAct)) {
 749                 //MESSAGE("--- erase " << anActor);
 750             anActor->SetVisibility(false);
 751           }
 752         }
 753         aStudy->setVisibilityStateForAll(Qtx::HiddenState);
 754       }
 755       default: {
 756         if (SMESH_Actor *anActor = FindActorByEntry(theWnd,theEntry)) {
 757           switch (theAction) {
 758             case eDisplay:
 759             case eDisplayOnly:
 760                 //MESSAGE("--- display " << anActor);
 761               anActor->Update();
 762               anActor->SetVisibility(true);
 763               if (theAction == eDisplayOnly) aRenderer->ResetCameraClippingRange();
 764               aStudy->setVisibilityState(theEntry, Qtx::ShownState);
 765               break;
 766             case eErase:
 767                 //MESSAGE("--- erase " << anActor);
 768               anActor->SetVisibility(false);
 769               aStudy->setVisibilityState(theEntry, Qtx::HiddenState);
 770               break;
 771           }
 772         } else {
 773           switch (theAction) {
 774           case eDisplay:
 775           case eDisplayOnly:
 776             {
 777                 //MESSAGE("---");
 778               SalomeApp_Study* aStudy = dynamic_cast<SalomeApp_Study*>(theWnd->getViewManager()->study());
 779               _PTR(Study) aDocument = aStudy->studyDS();
 780               // Pass non-visual objects (hypotheses, etc.), return true in this case
 781               CORBA::Long anId = aDocument->StudyId();
 782               TVisualObjPtr aVisualObj;
 783               if ( (aVisualObj = GetVisualObj(anId,theEntry)) && aVisualObj->IsValid())
 784               {
 785                 if ((anActor = CreateActor(aDocument,theEntry,true))) {
 786                   bool needFitAll = noSmeshActors(theWnd); // fit for the first object only
 787                   DisplayActor(theWnd,anActor);
 788                   aStudy->setVisibilityState(theEntry, Qtx::ShownState);
 789                   // FitAll(); - PAL16770(Display of a group performs an automatic fit all)
 790                   if (needFitAll) FitAll();
 791                 } else {
 792                   OK = false;
 793                 }
 794               }
 795               break;
 796             }
 797           }
 798         }
 799       }
 800       }
 801     }
 802     return OK;
 803   }
 804
 805
 806   bool UpdateView(EDisplaing theAction, const char* theEntry){
 807         //MESSAGE("UpdateView");
 808     SalomeApp_Study* aStudy = dynamic_cast< SalomeApp_Study* >( GetActiveStudy() );
 809     SalomeApp_Application* app = dynamic_cast< SalomeApp_Application* >( aStudy->application() );
 810     SUIT_ViewWindow *aWnd = app->activeViewManager()->getActiveView();
 811     return UpdateView(aWnd,theAction,theEntry);
 812   }
 813
 814   void UpdateView(){
 815     if(SVTK_ViewWindow* aWnd = SMESH::GetCurrentVtkView()){
 816       LightApp_SelectionMgr* mgr = SMESHGUI::selectionMgr();
 817       SALOME_ListIO selected; mgr->selectedObjects( selected );
 818
 819       if( selected.Extent() == 0){
 820         vtkRenderer* aRenderer = aWnd->getRenderer();
 821         VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
 822         vtkActorCollection *aCollection = aCopy.GetActors();
 823         aCollection->InitTraversal();
 824         while(vtkActor *anAct = aCollection->GetNextActor()){
 825           if(SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>(anAct)){
 826             if(anActor->hasIO())
 827               if (!Update(anActor->getIO(),anActor->GetVisibility()))
 828                 break; // avoid multiple warinings if visu failed
 829           }
 830         }
 831       }else{
 832         SALOME_ListIteratorOfListIO anIter( selected );
 833         for( ; anIter.More(); anIter.Next()){
 834           Handle(SALOME_InteractiveObject) anIO = anIter.Value();
 835           if ( !Update(anIO,true) )
 836             break; // avoid multiple warinings if visu failed
 837         }
 838       }
 839       RepaintCurrentView();
 840     }
 841   }
 842
 843
 844   bool Update(const Handle(SALOME_InteractiveObject)& theIO, bool theDisplay)
 845   {
 846         MESSAGE("Update");
 847     _PTR(Study) aStudy = GetActiveStudyDocument();
 848     CORBA::Long anId = aStudy->StudyId();
 849     if ( TVisualObjPtr aVisualObj = SMESH::GetVisualObj(anId,theIO->getEntry())) {
 850       if ( theDisplay )
 851         UpdateView(SMESH::eDisplay,theIO->getEntry());
 852       return true;
 853     }
 854     return false;
 855   }
 856
 857   bool UpdateNulData(const Handle(SALOME_InteractiveObject)& theIO, bool theDisplay)
 858   {
 859         MESSAGE("UpdateNulData");
 860     _PTR(Study) aStudy = GetActiveStudyDocument();
 861     CORBA::Long anId = aStudy->StudyId();
 862     if ( TVisualObjPtr aVisualObj = SMESH::GetVisualObj(anId,theIO->getEntry(), true)) {
 863       if ( theDisplay )
 864         UpdateView(SMESH::eDisplay,theIO->getEntry());
 865       return true;
 866     }
 867     return false;
 868   }
 869
 870   void UpdateSelectionProp( SMESHGUI* theModule ) {
 871     if( !theModule )
 872       return;
 873
 874     SalomeApp_Application* app = dynamic_cast< SalomeApp_Application* >( theModule->application() );
 875     if( !app )
 876     {
 877       MESSAGE( "UpdateSelectionProp: Application is null" );
 878       return;
 879     }
 880
 881     SUIT_ViewManager* vm = app->activeViewManager();
 882     if( !vm )
 883     {
 884       MESSAGE( "UpdateSelectionProp: View manager is null" );
 885       return;
 886     }
 887
 888     QVector<SUIT_ViewWindow*> views = vm->getViews();
 889
 890     SUIT_ResourceMgr* mgr = SMESH::GetResourceMgr( theModule );
 891     if( !mgr )
 892     {
 893       MESSAGE( "UpdateSelectionProp: Resource manager is null" );
 894       return;
 895     }
 896
 897     QColor aHiColor = mgr->colorValue( "SMESH", "selection_object_color", Qt::white ),
 898            aSelColor = mgr->colorValue( "SMESH", "selection_element_color", Qt::yellow ),
 899            aPreColor = mgr->colorValue( "SMESH", "highlight_color", Qt::cyan );
 900
 901     int aElem0DSize = mgr->integerValue("SMESH", "elem0d_size", 5);
 902     int aBallSize   = mgr->integerValue("SMESH", "ball_elem_size", 5);
 903     int aLineWidth  = mgr->integerValue("SMESH", "element_width", 1);
 904     int maxSize = aElem0DSize;
 905     if (aElem0DSize > maxSize) maxSize = aElem0DSize;
 906     if (aLineWidth > maxSize) maxSize = aLineWidth;
 907     if (aBallSize > maxSize) maxSize = aBallSize;
 908
 909     double SP1 = mgr->doubleValue( "SMESH", "selection_precision_node", 0.025 ),
 910            SP2 = mgr->doubleValue( "SMESH", "selection_precision_element", 0.001 ),
 911            SP3 = mgr->doubleValue( "SMESH", "selection_precision_object", 0.025 );
 912
 913     for ( int i=0, n=views.count(); i<n; i++ ){
 914       // update VTK viewer properties
 915       if(SVTK_ViewWindow* aVtkView = GetVtkViewWindow( views[i] )){
 916         // mesh element selection
 917         aVtkView->SetSelectionProp(aSelColor.red()/255.,
 918                                    aSelColor.green()/255.,
 919                                    aSelColor.blue()/255.);
 920         // tolerances
 921         aVtkView->SetSelectionTolerance(SP1, SP2, SP3);
 922
 923         // pre-selection
 924         aVtkView->SetPreselectionProp(aPreColor.red()/255.,
 925                                       aPreColor.green()/255.,
 926                                       aPreColor.blue()/255.);
 927         // update actors
 928         vtkRenderer* aRenderer = aVtkView->getRenderer();
 929         VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
 930         vtkActorCollection *aCollection = aCopy.GetActors();
 931         aCollection->InitTraversal();
 932         while(vtkActor *anAct = aCollection->GetNextActor()){
 933           if(SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>(anAct)){
 934             anActor->SetHighlightColor(aHiColor.red()/255.,
 935                                        aHiColor.green()/255.,
 936                                        aHiColor.blue()/255.);
 937             anActor->SetPreHighlightColor(aPreColor.red()/255.,
 938                                           aPreColor.green()/255.,
 939                                           aPreColor.blue()/255.);
 940           }
 941         }
 942       }
 943     }
 944   }
 945
 946
 947   //----------------------------------------------------------------------------
 948   SVTK_Selector*
 949   GetSelector(SUIT_ViewWindow *theWindow)
 950   {
 951     if(SVTK_ViewWindow* aWnd = GetVtkViewWindow(theWindow))
 952       return aWnd->GetSelector();
 953
 954     return NULL;
 955   }
 956
 957   void SetFilter(const Handle(VTKViewer_Filter)& theFilter,
 958                  SVTK_Selector* theSelector)
 959   {
 960     if (theSelector)
 961       theSelector->SetFilter(theFilter);
 962   }
 963
 964   Handle(VTKViewer_Filter) GetFilter(int theId, SVTK_Selector* theSelector)
 965   {
 966     return theSelector->GetFilter(theId);
 967   }
 968
 969   bool IsFilterPresent(int theId, SVTK_Selector* theSelector)
 970   {
 971     return theSelector->IsFilterPresent(theId);
 972   }
 973
 974   void RemoveFilter(int theId, SVTK_Selector* theSelector)
 975   {
 976     theSelector->RemoveFilter(theId);
 977   }
 978
 979   void RemoveFilters(SVTK_Selector* theSelector)
 980   {
 981     for ( int id = SMESH::NodeFilter; theSelector && id < SMESH::LastFilter; id++ )
 982       theSelector->RemoveFilter( id );
 983   }
 984
 985   bool IsValid(SALOME_Actor* theActor, int theCellId,
 986                SVTK_Selector* theSelector)
 987   {
 988     return theSelector->IsValid(theActor,theCellId);
 989   }
 990
 991
 992   //----------------------------------------------------------------------------
 993   void SetPointRepresentation(bool theIsVisible){
 994     if(SVTK_ViewWindow* aViewWindow = GetCurrentVtkView()){
 995       vtkRenderer *aRenderer = aViewWindow->getRenderer();
 996       VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
 997       vtkActorCollection *aCollection = aCopy.GetActors();
 998       aCollection->InitTraversal();
 999       while(vtkActor *anAct = aCollection->GetNextActor()){
1000         if(SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>(anAct)){
1001           if(anActor->GetVisibility()){
1002             anActor->SetPointRepresentation(theIsVisible);
1003           }
1004         }
1005       }
1006       RepaintCurrentView();
1007     }
1008   }
1009
1010
1011   void SetPickable(SMESH_Actor* theActor){
1012     if(SVTK_ViewWindow* aWnd = GetCurrentVtkView()){
1013       int anIsAllPickable = (theActor == NULL);
1014       vtkRenderer *aRenderer = aWnd->getRenderer();
1015       VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
1016       vtkActorCollection *aCollection = aCopy.GetActors();
1017       aCollection->InitTraversal();
1018       while(vtkActor *anAct = aCollection->GetNextActor()){
1019         if(SALOME_Actor *anActor = dynamic_cast<SALOME_Actor*>(anAct)){
1020           if(anActor->GetVisibility()){
1021             anActor->SetPickable(anIsAllPickable);
1022           }
1023         }
1024       }
1025       if(theActor)
1026         theActor->SetPickable(!anIsAllPickable);
1027       RepaintCurrentView();
1028     }
1029   }
1030
1031
1032   //----------------------------------------------------------------------------
1033   int GetNameOfSelectedNodes(SVTK_Selector* theSelector,
1034                              const Handle(SALOME_InteractiveObject)& theIO,
1035                              QString& theName)
1036   {
1037     theName = "";
1038     TColStd_IndexedMapOfInteger aMapIndex;
1039     theSelector->GetIndex(theIO,aMapIndex);
1040
1041     for(int i = 1; i <= aMapIndex.Extent(); i++)
1042       theName += QString(" %1").arg(aMapIndex(i));
1043
1044     return aMapIndex.Extent();
1045   }
1046
1047   int GetNameOfSelectedElements(SVTK_Selector* theSelector,
1048                                 const Handle(SALOME_InteractiveObject)& theIO,
1049                                 QString& theName)
1050   {
1051     theName = "";
1052     TColStd_IndexedMapOfInteger aMapIndex;
1053     theSelector->GetIndex(theIO,aMapIndex);
1054
1055     typedef std::set<int> TIdContainer;
1056     TIdContainer anIdContainer;
1057     for( int i = 1; i <= aMapIndex.Extent(); i++)
1058       anIdContainer.insert(aMapIndex(i));
1059
1060     TIdContainer::const_iterator anIter = anIdContainer.begin();
1061     for( ; anIter != anIdContainer.end(); anIter++)
1062       theName += QString(" %1").arg(*anIter);
1063
1064     return aMapIndex.Extent();
1065   }
1066
1067
1068   int GetEdgeNodes(SVTK_Selector* theSelector,
1069                    const TVisualObjPtr& theVisualObject,
1070                    int& theId1,
1071                    int& theId2)
1072   {
1073     const SALOME_ListIO& selected = theSelector->StoredIObjects();
1074
1075     if ( selected.Extent() != 1 )
1076       return -1;
1077
1078     Handle(SALOME_InteractiveObject) anIO = selected.First();
1079     if ( anIO.IsNull() || !anIO->hasEntry() )
1080       return -1;
1081
1082     TColStd_IndexedMapOfInteger aMapIndex;
1083     theSelector->GetIndex( anIO, aMapIndex );
1084     if ( aMapIndex.Extent() != 2 )
1085       return -1;
1086
1087     int anObjId = -1, anEdgeNum = -1;
1088     for ( int i = 1; i <= aMapIndex.Extent(); i++ ) {
1089       int aVal = aMapIndex( i );
1090       if ( aVal > 0 )
1091         anObjId = aVal;
1092       else
1093         anEdgeNum = abs( aVal ) - 1;
1094     }
1095
1096     if ( anObjId == -1 || anEdgeNum == -1 )
1097       return -1;
1098
1099     return theVisualObject->GetEdgeNodes( anObjId, anEdgeNum, theId1, theId2 ) ? 1 : -1;
1100   }
1101
1102   //----------------------------------------------------------------------------
1103   int GetNameOfSelectedNodes(LightApp_SelectionMgr *theMgr,
1104                              const Handle(SALOME_InteractiveObject)& theIO,
1105                              QString& theName)
1106   {
1107     theName = "";
1108     if(theIO->hasEntry()){
1109       if(FindActorByEntry(theIO->getEntry())){
1110         TColStd_IndexedMapOfInteger aMapIndex;
1111         theMgr->GetIndexes(theIO,aMapIndex);
1112         for(int i = 1; i <= aMapIndex.Extent(); i++){
1113           theName += QString(" %1").arg(aMapIndex(i));
1114         }
1115         return aMapIndex.Extent();
1116       }
1117     }
1118     return -1;
1119   }
1120
1121   int GetNameOfSelectedNodes(LightApp_SelectionMgr *theMgr, QString& theName){
1122     theName = "";
1123     SALOME_ListIO selected; theMgr->selectedObjects( selected );
1124     if(selected.Extent() == 1){
1125       Handle(SALOME_InteractiveObject) anIO = selected.First();
1126       return GetNameOfSelectedNodes(theMgr,anIO,theName);
1127     }
1128     return -1;
1129   }
1130
1131
1132   int GetNameOfSelectedElements(LightApp_SelectionMgr *theMgr,
1133                                 const Handle(SALOME_InteractiveObject)& theIO,
1134                                 QString& theName)
1135   {
1136     theName = "";
1137     if(theIO->hasEntry()){
1138       if(FindActorByEntry(theIO->getEntry())){
1139         TColStd_IndexedMapOfInteger aMapIndex;
1140         theMgr->GetIndexes(theIO,aMapIndex);
1141         typedef std::set<int> TIdContainer;
1142         TIdContainer anIdContainer;
1143         for( int i = 1; i <= aMapIndex.Extent(); i++)
1144           anIdContainer.insert(aMapIndex(i));
1145         TIdContainer::const_iterator anIter = anIdContainer.begin();
1146         for( ; anIter != anIdContainer.end(); anIter++){
1147           theName += QString(" %1").arg(*anIter);
1148         }
1149         return aMapIndex.Extent();
1150       }
1151     }
1152     return -1;
1153   }
1154
1155
1156   int GetNameOfSelectedElements(LightApp_SelectionMgr *theMgr, QString& theName)
1157   {
1158     theName = "";
1159     SALOME_ListIO selected; theMgr->selectedObjects( selected );
1160
1161     if( selected.Extent() == 1){
1162       Handle(SALOME_InteractiveObject) anIO = selected.First();
1163       return GetNameOfSelectedElements(theMgr,anIO,theName);
1164     }
1165     return -1;
1166   }
1167
1168   int GetSelected(LightApp_SelectionMgr*       theMgr,
1169                   TColStd_IndexedMapOfInteger& theMap,
1170                   const bool                   theIsElement)
1171   {
1172     theMap.Clear();
1173     SALOME_ListIO selected; theMgr->selectedObjects( selected );
1174
1175     if ( selected.Extent() == 1 )
1176     {
1177       Handle(SALOME_InteractiveObject) anIO = selected.First();
1178       if ( anIO->hasEntry() ) {
1179         theMgr->GetIndexes( anIO, theMap );
1180       }
1181     }
1182     return theMap.Extent();
1183   }
1184
1185
1186   int GetEdgeNodes( LightApp_SelectionMgr* theMgr, int& theId1, int& theId2 )
1187   {
1188     SALOME_ListIO selected; theMgr->selectedObjects( selected );
1189
1190     if ( selected.Extent() != 1 )
1191       return -1;
1192
1193     Handle(SALOME_InteractiveObject) anIO = selected.First();
1194     if ( anIO.IsNull() || !anIO->hasEntry() )
1195       return -1;
1196
1197     SMESH_Actor *anActor = SMESH::FindActorByEntry( anIO->getEntry() );
1198     if ( anActor == 0 )
1199       return -1;
1200
1201     TColStd_IndexedMapOfInteger aMapIndex;
1202     theMgr->GetIndexes( anIO, aMapIndex );
1203     if ( aMapIndex.Extent() != 2 )
1204       return -1;
1205
1206     int anObjId = -1, anEdgeNum = -1;
1207     for ( int i = 1; i <= aMapIndex.Extent(); i++ ) {
1208       int aVal = aMapIndex( i );
1209       if ( aVal > 0 )
1210         anObjId = aVal;
1211       else
1212         anEdgeNum = abs( aVal );
1213     }
1214
1215     if ( anObjId == -1 || anEdgeNum == -1 )
1216       return -1;
1217
1218     return anActor->GetObject()->GetEdgeNodes( anObjId, anEdgeNum, theId1, theId2 ) ? 1 : -1;
1219   }
1220
1221   void SetControlsPrecision( const long theVal )
1222   {
1223     if( SVTK_ViewWindow* aWnd = SMESH::GetCurrentVtkView() )
1224     {
1225       vtkRenderer *aRenderer = aWnd->getRenderer();
1226       VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
1227       vtkActorCollection *aCollection = aCopy.GetActors();
1228       aCollection->InitTraversal();
1229
1230       while ( vtkActor *anAct = aCollection->GetNextActor())
1231       {
1232         if ( SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>( anAct ) )
1233         {
1234           anActor->SetControlsPrecision( theVal );
1235           anActor->SetControlMode( anActor->GetControlMode() );
1236         }
1237       }
1238
1239     }
1240   }
1241
1242   //----------------------------------------------------------------------------
1243   // internal function
1244   void ComputeBoundsParam( vtkFloatingPointType theBounds[6],
1245                            vtkFloatingPointType theDirection[3],
1246                            vtkFloatingPointType theMinPnt[3],
1247                            vtkFloatingPointType& theMaxBoundPrj,
1248                            vtkFloatingPointType& theMinBoundPrj )
1249   {
1250     //Enlarge bounds in order to avoid conflicts of precision
1251     for(int i = 0; i < 6; i += 2){
1252       static double EPS = 1.0E-3;
1253       vtkFloatingPointType aDelta = (theBounds[i+1] - theBounds[i])*EPS;
1254       theBounds[i] -= aDelta;
1255       theBounds[i+1] += aDelta;
1256     }
1257
1258     vtkFloatingPointType aBoundPoints[8][3] = { {theBounds[0],theBounds[2],theBounds[4]},
1259                                                 {theBounds[1],theBounds[2],theBounds[4]},
1260                                                 {theBounds[0],theBounds[3],theBounds[4]},
1261                                                 {theBounds[1],theBounds[3],theBounds[4]},
1262                                                 {theBounds[0],theBounds[2],theBounds[5]},
1263                                                 {theBounds[1],theBounds[2],theBounds[5]},
1264                                                 {theBounds[0],theBounds[3],theBounds[5]},
1265                                                 {theBounds[1],theBounds[3],theBounds[5]}};
1266
1267     int aMaxId = 0;
1268     theMaxBoundPrj = vtkMath::Dot(theDirection,aBoundPoints[aMaxId]);
1269     theMinBoundPrj = theMaxBoundPrj;
1270     for(int i = 1; i < 8; i++){
1271       vtkFloatingPointType aTmp = vtkMath::Dot(theDirection,aBoundPoints[i]);
1272       if(theMaxBoundPrj < aTmp){
1273         theMaxBoundPrj = aTmp;
1274         aMaxId = i;
1275       }
1276       if(theMinBoundPrj > aTmp){
1277         theMinBoundPrj = aTmp;
1278       }
1279     }
1280     vtkFloatingPointType *aMinPnt = aBoundPoints[aMaxId];
1281     theMinPnt[0] = aMinPnt[0];
1282     theMinPnt[1] = aMinPnt[1];
1283     theMinPnt[2] = aMinPnt[2];
1284   }
1285
1286   // internal function
1287   void DistanceToPosition( vtkFloatingPointType theBounds[6],
1288                            vtkFloatingPointType theDirection[3],
1289                            vtkFloatingPointType theDist,
1290                            vtkFloatingPointType thePos[3] )
1291   {
1292     vtkFloatingPointType aMaxBoundPrj, aMinBoundPrj, aMinPnt[3];
1293     ComputeBoundsParam(theBounds,theDirection,aMinPnt,aMaxBoundPrj,aMinBoundPrj);
1294     vtkFloatingPointType aLength = (aMaxBoundPrj-aMinBoundPrj)*theDist;
1295     thePos[0] = aMinPnt[0]-theDirection[0]*aLength;
1296     thePos[1] = aMinPnt[1]-theDirection[1]*aLength;
1297     thePos[2] = aMinPnt[2]-theDirection[2]*aLength;
1298   }
1299
1300   // internal function (currently unused, left just in case)
1301   void PositionToDistance( vtkFloatingPointType theBounds[6],
1302                            vtkFloatingPointType theDirection[3],
1303                            vtkFloatingPointType thePos[3],
1304                            vtkFloatingPointType& theDist )
1305   {
1306     vtkFloatingPointType aMaxBoundPrj, aMinBoundPrj, aMinPnt[3];
1307     ComputeBoundsParam(theBounds,theDirection,aMinPnt,aMaxBoundPrj,aMinBoundPrj);
1308     vtkFloatingPointType aPrj = vtkMath::Dot(theDirection,thePos);
1309     theDist = (aPrj-aMinBoundPrj)/(aMaxBoundPrj-aMinBoundPrj);
1310   }
1311
1312   bool ComputeClippingPlaneParameters( std::list<vtkActor*> theActorList,
1313                                        vtkFloatingPointType theNormal[3],
1314                                        vtkFloatingPointType theDist,
1315                                        vtkFloatingPointType theBounds[6],
1316                                        vtkFloatingPointType theOrigin[3] )
1317   {
1318     bool anIsOk = false;
1319     theBounds[0] = theBounds[2] = theBounds[4] = VTK_DOUBLE_MAX;
1320     theBounds[1] = theBounds[3] = theBounds[5] = -VTK_DOUBLE_MAX;
1321     std::list<vtkActor*>::iterator anIter = theActorList.begin();
1322     for( ; anIter != theActorList.end(); anIter++ ) {
1323       if( vtkActor* aVTKActor = *anIter ) {
1324         if( SMESH_Actor* anActor = SMESH_Actor::SafeDownCast( aVTKActor ) ) {
1325           vtkFloatingPointType aBounds[6];
1326           anActor->GetUnstructuredGrid()->GetBounds( aBounds );
1327           theBounds[0] = std::min( theBounds[0], aBounds[0] );
1328           theBounds[1] = std::max( theBounds[1], aBounds[1] );
1329           theBounds[2] = std::min( theBounds[2], aBounds[2] );
1330           theBounds[3] = std::max( theBounds[3], aBounds[3] );
1331           theBounds[4] = std::min( theBounds[4], aBounds[4] );
1332           theBounds[5] = std::max( theBounds[5], aBounds[5] );
1333           anIsOk = true;
1334         }
1335       }
1336     }
1337
1338     if( !anIsOk )
1339       return false;
1340
1341     DistanceToPosition( theBounds, theNormal, theDist, theOrigin );
1342     return true;
1343   }
1344
1345 #ifndef DISABLE_PLOT2DVIEWER
1346   //================================================================================
1347   /*!
1348    * \brief Find all SMESH_Actor's in the View Window.
1349    * If actor constains Plot2d_Histogram object remove it from each Plot2d Viewer.
1350    */
1351   //================================================================================
1352
1353   void ClearPlot2Viewers( SUIT_ViewWindow* theWindow ) {
1354     if(SVTK_ViewWindow* aViewWindow = GetVtkViewWindow(theWindow)){
1355       vtkRenderer *aRenderer = aViewWindow->getRenderer();
1356       VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
1357       vtkActorCollection *aCollection = aCopy.GetActors();
1358       aCollection->InitTraversal();
1359       while(vtkActor *anAct = aCollection->GetNextActor()){
1360         if(SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>(anAct)){
1361           if(anActor->hasIO() && anActor->GetPlot2Histogram() ){
1362             ProcessIn2DViewers(anActor,RemoveFrom2dViewer);
1363           }
1364         }
1365       }
1366     }
1367   }
1368
1369 #endif
1370
1371 } // end of namespace SMESH