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 )
 107   {
 108     SalomeApp_Application* app = dynamic_cast<SalomeApp_Application*>
 109       ( SUIT_Session::session()->activeApplication() );
 110     SUIT_ViewManager* aViewManager =
 111       app ? app->getViewManager(SVTK_Viewer::Type(), true) : 0;
 112     if ( aViewManager ) {
 113       QVector<SUIT_ViewWindow*> views = aViewManager->getViews();
 114       for ( int iV = 0; iV < views.count(); ++iV ) {
 115         if ( SMESH_Actor* actor = FindActorByEntry( views[iV], theEntry)) {
 116           if(SVTK_ViewWindow* vtkWnd = GetVtkViewWindow(views[iV]))
 117             vtkWnd->RemoveActor(actor);
 118           actor->Delete();
 119         }
 120       }
 121       int aStudyId = aViewManager->study()->id();
 122       TVisualObjCont::key_type aKey(aStudyId,theEntry);
 123       TVisualObjCont::iterator anIter = VISUAL_OBJ_CONT.find(aKey);
 124       if(anIter != VISUAL_OBJ_CONT.end()) {
 125         // for unknown reason, object destructor is not called, so clear object manually
 126         anIter->second->GetUnstructuredGrid()->SetCells(0,0,0,0,0);
 127         anIter->second->GetUnstructuredGrid()->SetPoints(0);
 128       }
 129       VISUAL_OBJ_CONT.erase(aKey);
 130     }
 131   }
 132   //================================================================================
 133   /*!
 134    * \brief Remove all VisualObjs and their actors from all views
 135    */
 136   //================================================================================
 137
 138   void RemoveAllObjectsWithActors()
 139   {
 140     SalomeApp_Application* app = dynamic_cast<SalomeApp_Application*>
 141       ( SUIT_Session::session()->activeApplication() );
 142     if (!app) return;
 143     ViewManagerList viewMgrs = app->viewManagers();
 144     for ( int iM = 0; iM < viewMgrs.count(); ++iM ) {
 145       SUIT_ViewManager* aViewManager = viewMgrs.at( iM );
 146       if ( aViewManager && aViewManager->getType() == SVTK_Viewer::Type()) {
 147         QVector<SUIT_ViewWindow*> views = aViewManager->getViews();
 148         for ( int iV = 0; iV < views.count(); ++iV ) {
 149           if(SVTK_ViewWindow* vtkWnd = GetVtkViewWindow(views[iV])) {
 150             vtkRenderer *aRenderer = vtkWnd->getRenderer();
 151             VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
 152             vtkActorCollection *actors = aCopy.GetActors();
 153             for (int i = 0; i < actors->GetNumberOfItems(); ++i ) {
 154               // size of actors changes inside the loop
 155               if (SMESH_Actor *actor = dynamic_cast<SMESH_Actor*>(actors->GetItemAsObject(i)))
 156               {
 157                 vtkWnd->RemoveActor(actor);
 158                 actor->Delete();
 159               }
 160             }
 161           }
 162         }
 163       }
 164     }
 165     TVisualObjCont::iterator anIter = VISUAL_OBJ_CONT.begin();
 166     for ( ; anIter != VISUAL_OBJ_CONT.end(); ++anIter ) {
 167       // for unknown reason, object destructor is not called, so clear object manually
 168       anIter->second->GetUnstructuredGrid()->SetCells(0,0,0,0,0);
 169       anIter->second->GetUnstructuredGrid()->SetPoints(0);
 170     }
 171     VISUAL_OBJ_CONT.clear();
 172   }
 173
 174   //================================================================================
 175   /*!
 176    * \brief Remove all VisualObjs of a study
 177    */
 178   //================================================================================
 179
 180   void RemoveVisuData(int studyID)
 181   {
 182     SalomeApp_Application* app = dynamic_cast<SalomeApp_Application*>
 183       ( SUIT_Session::session()->activeApplication() );
 184     if (!app) return;
 185     ViewManagerList viewMgrs = app->viewManagers();
 186     for ( int iM = 0; iM < viewMgrs.count(); ++iM ) {
 187       SUIT_ViewManager* aViewManager = viewMgrs.at( iM );
 188       if ( aViewManager && aViewManager->getType() == SVTK_Viewer::Type() &&
 189            aViewManager->study()->id() == studyID ) {
 190         QVector<SUIT_ViewWindow*> views = aViewManager->getViews();
 191         for ( int iV = 0; iV < views.count(); ++iV ) {
 192           if(SVTK_ViewWindow* vtkWnd = GetVtkViewWindow(views[iV])) {
 193             vtkRenderer *aRenderer = vtkWnd->getRenderer();
 194             VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
 195             vtkActorCollection *actors = aCopy.GetActors();
 196             for (int i = 0; i < actors->GetNumberOfItems(); ++i ) {
 197               // size of actors changes inside the loop
 198               if(SMESH_Actor *actor = dynamic_cast<SMESH_Actor*>(actors->GetItemAsObject(i)))
 199               {
 200                 vtkWnd->RemoveActor(actor);
 201                 actor->Delete();
 202               }
 203             }
 204           }
 205         }
 206       }
 207     }
 208     TVisualObjCont::iterator anIter = VISUAL_OBJ_CONT.begin();
 209     for ( ; anIter != VISUAL_OBJ_CONT.end(); ) {
 210       int curId = anIter->first.first;
 211       if ( curId == studyID ) {
 212         // for unknown reason, object destructor is not called, so clear object manually
 213         anIter->second->GetUnstructuredGrid()->SetCells(0,0,0,0,0);
 214         anIter->second->GetUnstructuredGrid()->SetPoints(0);
 215         VISUAL_OBJ_CONT.erase( anIter++ ); // anIter++ returns a copy of self before incrementing
 216       }
 217       else {
 218         anIter++;
 219       }
 220     }
 221   }
 222
 223   //================================================================================
 224   /*!
 225    * \brief Notify the user on problems during visualization
 226    */
 227   //================================================================================
 228
 229   void OnVisuException()
 230   {
 231     try {
 232 #if (OCC_VERSION_MAJOR << 16 | OCC_VERSION_MINOR << 8 | OCC_VERSION_MAINTENANCE) > 0x060100
 233       OCC_CATCH_SIGNALS;
 234 #endif
 235       // PAL16774 (Crash after display of many groups). Salome sometimes crashes just
 236       // after or at showing this message, so we do an additional check of available memory
 237 //       char* buf = new char[100*1024];
 238 //       delete [] buf;
 239       SUIT_MessageBox::warning(SMESHGUI::desktop(), QObject::tr("SMESH_WRN_WARNING"),
 240                                QObject::tr("SMESH_VISU_PROBLEM"));
 241     } catch (...) {
 242       // no more memory at all: last resort
 243       MESSAGE_BEGIN ( "SMESHGUI_VTKUtils::OnVisuException(), exception even at showing a message!!!" <<
 244                       std::endl << "Try to remove all visual data..." );
 245       if (theVISU_MemoryReserve) {
 246         delete theVISU_MemoryReserve;
 247         theVISU_MemoryReserve = 0;
 248       }
 249       RemoveAllObjectsWithActors();
 250       SUIT_MessageBox::warning(SMESHGUI::desktop(), QObject::tr("SMESH_WRN_WARNING"),
 251                                QObject::tr("SMESH_VISU_PROBLEM_CLEAR"));
 252       MESSAGE_END ( "...done" );
 253     }
 254   }
 255   //================================================================================
 256   /*!
 257    * \brief Returns an updated visual object
 258    */
 259   //================================================================================
 260
 261   TVisualObjPtr GetVisualObj(int theStudyId, const char* theEntry, bool nulData){
 262     TVisualObjPtr aVisualObj;
 263     TVisualObjCont::key_type aKey(theStudyId,theEntry);
 264     try{
 265 #if (OCC_VERSION_MAJOR << 16 | OCC_VERSION_MINOR << 8 | OCC_VERSION_MAINTENANCE) > 0x060100
 266       OCC_CATCH_SIGNALS;
 267 #endif
 268       TVisualObjCont::iterator anIter = VISUAL_OBJ_CONT.find(aKey);
 269       if(anIter != VISUAL_OBJ_CONT.end()){
 270         aVisualObj = anIter->second;
 271       }else{
 272         SalomeApp_Application* app =
 273           dynamic_cast<SalomeApp_Application*>( SMESHGUI::activeStudy()->application() );
 274         _PTR(Study) aStudy = SMESHGUI::activeStudy()->studyDS();
 275         _PTR(SObject) aSObj = aStudy->FindObjectID(theEntry);
 276         if(aSObj){
 277           _PTR(GenericAttribute) anAttr;
 278           if(aSObj->FindAttribute(anAttr,"AttributeIOR")){
 279             _PTR(AttributeIOR) anIOR = anAttr;
 280             CORBA::String_var aVal = anIOR->Value().c_str();
 281             CORBA::Object_var anObj = app->orb()->string_to_object( aVal.in() );
 282             if(!CORBA::is_nil(anObj)){
 283               //Try narrow to SMESH_Mesh interface
 284               SMESH::SMESH_Mesh_var aMesh = SMESH::SMESH_Mesh::_narrow(anObj);
 285               if(!aMesh->_is_nil()){
 286                 aVisualObj.reset(new SMESH_MeshObj(aMesh));
 287                 TVisualObjCont::value_type aValue(aKey,aVisualObj);
 288                 VISUAL_OBJ_CONT.insert(aValue);
 289               }
 290               //Try narrow to SMESH_Group interface
 291               SMESH::SMESH_GroupBase_var aGroup = SMESH::SMESH_GroupBase::_narrow(anObj);
 292               if(!aGroup->_is_nil()){
 293                 _PTR(SObject) aFatherSObj = aSObj->GetFather();
 294                 if(!aFatherSObj) return aVisualObj;
 295                 aFatherSObj = aFatherSObj->GetFather();
 296                 if(!aFatherSObj) return aVisualObj;
 297                 CORBA::String_var anEntry = aFatherSObj->GetID().c_str();
 298                 TVisualObjPtr aVisObj = GetVisualObj(theStudyId,anEntry.in());
 299                 if(SMESH_MeshObj* aMeshObj = dynamic_cast<SMESH_MeshObj*>(aVisObj.get())){
 300                   aVisualObj.reset(new SMESH_GroupObj(aGroup,aMeshObj));
 301                   TVisualObjCont::value_type aValue(aKey,aVisualObj);
 302                   VISUAL_OBJ_CONT.insert(aValue);
 303                 }
 304               }
 305               //Try narrow to SMESH_subMesh interface
 306               SMESH::SMESH_subMesh_var aSubMesh = SMESH::SMESH_subMesh::_narrow(anObj);
 307               if(!aSubMesh->_is_nil()){
 308                 _PTR(SObject) aFatherSObj = aSObj->GetFather();
 309                 if(!aFatherSObj) return aVisualObj;
 310                 aFatherSObj = aFatherSObj->GetFather();
 311                 if(!aFatherSObj) return aVisualObj;
 312                 CORBA::String_var anEntry = aFatherSObj->GetID().c_str();
 313                 TVisualObjPtr aVisObj = GetVisualObj(theStudyId,anEntry.in());
 314                 if(SMESH_MeshObj* aMeshObj = dynamic_cast<SMESH_MeshObj*>(aVisObj.get())){
 315                   aVisualObj.reset(new SMESH_subMeshObj(aSubMesh,aMeshObj));
 316                   TVisualObjCont::value_type aValue(aKey,aVisualObj);
 317                   VISUAL_OBJ_CONT.insert(aValue);
 318                 }
 319               }
 320             }
 321           }
 322         }
 323       }
 324     }catch(...){
 325       INFOS("GetMeshObj - There is no SMESH_Mesh object for the SALOMEDS::Strudy and Entry!!!");
 326       return TVisualObjPtr();
 327     }
 328     // Update object
 329     bool objModified = false;
 330     if ( aVisualObj ) {
 331       try {
 332 #if (OCC_VERSION_MAJOR << 16 | OCC_VERSION_MINOR << 8 | OCC_VERSION_MAINTENANCE) > 0x060100
 333         OCC_CATCH_SIGNALS;
 334 #endif
 335         //MESSAGE("GetVisualObj");
 336         if (nulData)
 337                 objModified = aVisualObj->NulData();
 338         else
 339           objModified = aVisualObj->Update();
 340       }
 341       catch (...) {
 342 #ifdef _DEBUG_
 343         MESSAGE ( "Exception in SMESHGUI_VTKUtils::GetVisualObj()" );
 344 #endif
 345         RemoveVisualObjectWithActors( theEntry ); // remove this object
 346         OnVisuException();
 347         aVisualObj.reset();
 348       }
 349     }
 350
 351     if ( objModified ) {
 352       // PAL16631. Mesurements showed that to show aVisualObj in SHADING(default) mode,
 353       // ~10 times more memory is used than it occupies.
 354       // Warn the user if there is less free memory than 30 sizes of a grid
 355       // TODO: estimate memory usage in other modes and take current mode into account
 356       int freeMB = SMDS_Mesh::CheckMemory(true);
 357       int usedMB = aVisualObj->GetUnstructuredGrid()->GetActualMemorySize() / 1024;
 358       if ( freeMB > 0 && usedMB * 30 > freeMB ) {
 359 #ifdef _DEBUG_
 360         MESSAGE ( "SMESHGUI_VTKUtils::GetVisualObj(), freeMB=" << freeMB
 361                << ", usedMB=" << usedMB );
 362 #endif
 363 //        bool continu = false;
 364 //        if ( usedMB * 10 > freeMB )
 365 //          // even dont try to show
 366 //          SUIT_MessageBox::warning(SMESHGUI::desktop(), QObject::tr("SMESH_WRN_WARNING"),
 367 //                                   QObject::tr("SMESH_NO_MESH_VISUALIZATION"));
 368 //        else
 369 //          // there is a chance to succeed
 370 //          continu = SUIT_MessageBox::warning
 371 //            (SMESHGUI::desktop(),
 372 //             QObject::tr("SMESH_WRN_WARNING"),
 373 //             QObject::tr("SMESH_CONTINUE_MESH_VISUALIZATION"),
 374 //             SUIT_MessageBox::Yes | SUIT_MessageBox::No,
 375 //             SUIT_MessageBox::Yes ) == SUIT_MessageBox::Yes;
 376 //        if ( !continu ) {
 377 //          // remove the corresponding actors from all views
 378 //          RemoveVisualObjectWithActors( theEntry );
 379 //          aVisualObj.reset();
 380 //        }
 381       }
 382     }
 383
 384     return aVisualObj;
 385   }
 386
 387
 388   /*! Return active view window, if it instantiates SVTK_ViewWindow class,
 389    *  overwise find or create corresponding view window, make it active and return it.
 390    *  \note Active VVTK_ViewWindow can be returned, because it inherits SVTK_ViewWindow.
 391    */
 392   SVTK_ViewWindow* GetViewWindow (const SalomeApp_Module* theModule,
 393                                   bool createIfNotFound)
 394   {
 395     SalomeApp_Application* anApp;
 396     if (theModule)
 397       anApp = theModule->getApp();
 398     else
 399       anApp = dynamic_cast<SalomeApp_Application*>
 400         (SUIT_Session::session()->activeApplication());
 401
 402     if (anApp) {
 403       if (SVTK_ViewWindow* aView = dynamic_cast<SVTK_ViewWindow*>(anApp->desktop()->activeWindow()))
 404         return aView;
 405
 406       SUIT_ViewManager* aViewManager =
 407         anApp->getViewManager(SVTK_Viewer::Type(), createIfNotFound);
 408       if (aViewManager) {
 409         if (SUIT_ViewWindow* aViewWindow = aViewManager->getActiveView()) {
 410           if (SVTK_ViewWindow* aView = dynamic_cast<SVTK_ViewWindow*>(aViewWindow)) {
 411             aViewWindow->raise();
 412             aViewWindow->setFocus();
 413             return aView;
 414           }
 415         }
 416       }
 417     }
 418     return NULL;
 419   }
 420
 421   SVTK_ViewWindow* FindVtkViewWindow (SUIT_ViewManager* theMgr,
 422                                       SUIT_ViewWindow * theWindow)
 423   {
 424     if( !theMgr )
 425       return NULL;
 426
 427     QVector<SUIT_ViewWindow*> views = theMgr->getViews();
 428     if( views.contains( theWindow ) )
 429       return GetVtkViewWindow( theWindow );
 430     else
 431       return NULL;
 432   }
 433
 434   SVTK_ViewWindow* GetVtkViewWindow(SUIT_ViewWindow* theWindow){
 435     return dynamic_cast<SVTK_ViewWindow*>(theWindow);
 436   }
 437
 438 /*  SUIT_ViewWindow* GetActiveWindow()
 439   {
 440     SalomeApp_Application* app = dynamic_cast<SalomeApp_Application*>( SUIT_Session::session()->activeApplication() );
 441     if( !app )
 442       return NULL;
 443     SUIT_ViewManager* mgr = app->activeViewManager();
 444     if( mgr )
 445       return mgr->getActiveView();
 446     else
 447       return NULL;
 448   }*/
 449
 450   SVTK_ViewWindow* GetCurrentVtkView(){
 451     return GetVtkViewWindow( GetActiveWindow() );
 452   }
 453
 454
 455   void RepaintCurrentView()
 456   {
 457     if (SVTK_ViewWindow* wnd = GetCurrentVtkView())
 458     {
 459       try {
 460 #if (OCC_VERSION_MAJOR << 16 | OCC_VERSION_MINOR << 8 | OCC_VERSION_MAINTENANCE) > 0x060100
 461         OCC_CATCH_SIGNALS;
 462 #endif
 463         wnd->getRenderer()->Render();
 464         wnd->Repaint(false);
 465       }
 466       catch (...) {
 467 #ifdef _DEBUG_
 468         MESSAGE ( "Exception in SMESHGUI_VTKUtils::RepaintCurrentView()" );
 469 #endif
 470         OnVisuException();
 471       }
 472     }
 473   }
 474
 475   void RepaintViewWindow(SVTK_ViewWindow* theWindow)
 476   {
 477     try {
 478 #if (OCC_VERSION_MAJOR << 16 | OCC_VERSION_MINOR << 8 | OCC_VERSION_MAINTENANCE) > 0x060100
 479       OCC_CATCH_SIGNALS;
 480 #endif
 481       theWindow->getRenderer()->Render();
 482       theWindow->Repaint();
 483     }
 484     catch (...) {
 485 #ifdef _DEBUG_
 486       MESSAGE ( "Exception in SMESHGUI_VTKUtils::RepaintViewWindow(SVTK_ViewWindow*)" );
 487 #endif
 488       OnVisuException();
 489     }
 490   }
 491
 492   void RenderViewWindow(SVTK_ViewWindow* theWindow)
 493   {
 494     try {
 495 #if (OCC_VERSION_MAJOR << 16 | OCC_VERSION_MINOR << 8 | OCC_VERSION_MAINTENANCE) > 0x060100
 496       OCC_CATCH_SIGNALS;
 497 #endif
 498       theWindow->getRenderer()->Render();
 499       theWindow->Repaint();
 500     }
 501     catch (...) {
 502 #ifdef _DEBUG_
 503       MESSAGE ( "Exception in SMESHGUI_VTKUtils::RenderViewWindow(SVTK_ViewWindow*)" );
 504 #endif
 505       OnVisuException();
 506     }
 507   }
 508
 509   void FitAll(){
 510     if(SVTK_ViewWindow* wnd = GetCurrentVtkView() ){
 511       try {
 512 #if (OCC_VERSION_MAJOR << 16 | OCC_VERSION_MINOR << 8 | OCC_VERSION_MAINTENANCE) > 0x060100
 513         OCC_CATCH_SIGNALS;
 514 #endif
 515         wnd->onFitAll();
 516         wnd->Repaint();
 517       }
 518       catch (...) {
 519 #ifdef _DEBUG_
 520         MESSAGE ( "Exception in SMESHGUI_VTKUtils::FitAll()" );
 521 #endif
 522         OnVisuException();
 523       }
 524     }
 525   }
 526
 527
 528   SMESH_Actor* FindActorByEntry(SUIT_ViewWindow *theWindow,
 529                                 const char* theEntry)
 530   {
 531     if(SVTK_ViewWindow* aViewWindow = GetVtkViewWindow(theWindow)){
 532       vtkRenderer *aRenderer = aViewWindow->getRenderer();
 533       VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
 534       vtkActorCollection *aCollection = aCopy.GetActors();
 535       aCollection->InitTraversal();
 536       while(vtkActor *anAct = aCollection->GetNextActor()){
 537         if(SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>(anAct)){
 538           if(anActor->hasIO()){
 539             Handle(SALOME_InteractiveObject) anIO = anActor->getIO();
 540             if(anIO->hasEntry() && strcmp(anIO->getEntry(),theEntry) == 0){
 541               return anActor;
 542             }
 543           }
 544         }
 545       }
 546     }
 547     return NULL;
 548   }
 549
 550
 551   SMESH_Actor* FindActorByEntry(const char* theEntry){
 552     return FindActorByEntry(GetActiveWindow(),theEntry);
 553   }
 554
 555
 556   SMESH_Actor* FindActorByObject(CORBA::Object_ptr theObject){
 557     SalomeApp_Application* app = dynamic_cast<SalomeApp_Application*>( SUIT_Session::session()->activeApplication() );
 558     if( !app )
 559       return NULL;
 560
 561     if(!CORBA::is_nil(theObject)){
 562       _PTR(Study) aStudy = GetActiveStudyDocument();
 563       CORBA::String_var anIOR = app->orb()->object_to_string( theObject );
 564       _PTR(SObject) aSObject = aStudy->FindObjectIOR(anIOR.in());
 565       if(aSObject){
 566         CORBA::String_var anEntry = aSObject->GetID().c_str();
 567         return FindActorByEntry(anEntry.in());
 568       }
 569     }
 570     return NULL;
 571   }
 572
 573
 574   SMESH_Actor* CreateActor(_PTR(Study) theStudy,
 575                            const char* theEntry,
 576                            int theIsClear)
 577   {
 578     SMESH_Actor *anActor = NULL;
 579     CORBA::Long anId = theStudy->StudyId();
 580     if(TVisualObjPtr aVisualObj = GetVisualObj(anId,theEntry)){
 581       _PTR(SObject) aSObj = theStudy->FindObjectID(theEntry);
 582       if(aSObj){
 583         _PTR(GenericAttribute) anAttr;
 584         if(aSObj->FindAttribute(anAttr,"AttributeName")){
 585           _PTR(AttributeName) aName = anAttr;
 586           std::string aNameVal = aName->Value();
 587           anActor = SMESH_Actor::New(aVisualObj,theEntry,aNameVal.c_str(),theIsClear);
 588         }
 589
 590         SMESH::SMESH_GroupBase_var aGroup = SMESH::SMESH_GroupBase::_narrow( SMESH::SObjectToObject( aSObj ));
 591         if(!CORBA::is_nil(aGroup))
 592         {
 593           SALOMEDS::Color aColor = aGroup->GetColor();
 594           if( !( aColor.R > 0 || aColor.G > 0 || aColor.B > 0 ) )
 595           {
 596             int r = 0, g = 0, b = 0;
 597             SMESH::GetColor( "SMESH", "fill_color", r, g, b, QColor( 0, 170, 255 ) );
 598             aColor.R = (float)r / 255.0;
 599             aColor.G = (float)g / 255.0;
 600             aColor.B = (float)b / 255.0;
 601             aGroup->SetColor( aColor );
 602           }
 603           if( aGroup->GetType() == SMESH::NODE )
 604             anActor->SetNodeColor( aColor.R, aColor.G, aColor.B );
 605           else if( aGroup->GetType() == SMESH::EDGE )
 606             anActor->SetEdgeColor( aColor.R, aColor.G, aColor.B );
 607           else if( aGroup->GetType() == SMESH::ELEM0D )
 608             anActor->Set0DColor( aColor.R, aColor.G, aColor.B );
 609           else
 610             anActor->SetSufaceColor( aColor.R, aColor.G, aColor.B );
 611         }
 612       }
 613     }
 614     MESSAGE("CreateActor " << anActor);
 615     if( anActor )
 616       if( SMESHGUI* aSMESHGUI = SMESHGUI::GetSMESHGUI() )
 617         aSMESHGUI->addActorAsObserver( anActor );
 618     return anActor;
 619   }
 620
 621
 622   void DisplayActor( SUIT_ViewWindow *theWnd, SMESH_Actor* theActor){
 623     if(SVTK_ViewWindow* vtkWnd = GetVtkViewWindow(theWnd)){
 624       try {
 625 #if (OCC_VERSION_MAJOR << 16 | OCC_VERSION_MINOR << 8 | OCC_VERSION_MAINTENANCE) > 0x060100
 626         OCC_CATCH_SIGNALS;
 627 #endif
 628         MESSAGE("DisplayActor " << theActor);
 629         vtkWnd->AddActor(theActor);
 630         vtkWnd->Repaint();
 631       }
 632       catch (...) {
 633 #ifdef _DEBUG_
 634         MESSAGE ( "Exception in SMESHGUI_VTKUtils::DisplayActor()" );
 635 #endif
 636         OnVisuException();
 637       }
 638     }
 639   }
 640
 641
 642   void RemoveActor( SUIT_ViewWindow *theWnd, SMESH_Actor* theActor){
 643     if(SVTK_ViewWindow* vtkWnd = GetVtkViewWindow(theWnd)){
 644         MESSAGE("RemoveActor " << theActor);
 645       vtkWnd->RemoveActor(theActor);
 646       if(theActor->hasIO()){
 647         Handle(SALOME_InteractiveObject) anIO = theActor->getIO();
 648         if(anIO->hasEntry()){
 649           std::string anEntry = anIO->getEntry();
 650           SalomeApp_Study* aStudy = dynamic_cast<SalomeApp_Study*>( vtkWnd->getViewManager()->study() );
 651           int aStudyId = aStudy->id();
 652           TVisualObjCont::key_type aKey(aStudyId,anEntry);
 653           VISUAL_OBJ_CONT.erase(aKey);
 654         }
 655       }
 656       theActor->Delete();
 657       vtkWnd->Repaint();
 658     }
 659   }
 660
 661   //================================================================================
 662   /*!
 663    * \brief Return true if there are no SMESH actors in a view
 664    */
 665   //================================================================================
 666
 667   bool noSmeshActors(SUIT_ViewWindow *theWnd)
 668   {
 669     if(SVTK_ViewWindow* aViewWindow = GetVtkViewWindow(theWnd)) {
 670       vtkRenderer *aRenderer = aViewWindow->getRenderer();
 671       VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
 672       vtkActorCollection *aCollection = aCopy.GetActors();
 673       aCollection->InitTraversal();
 674       while(vtkActor *anAct = aCollection->GetNextActor())
 675         if(dynamic_cast<SMESH_Actor*>(anAct))
 676           return false;
 677     }
 678     return true;
 679   }
 680
 681   bool UpdateView(SUIT_ViewWindow *theWnd, EDisplaing theAction, const char* theEntry)
 682   {
 683         //MESSAGE("UpdateView");
 684     bool OK = false;
 685     SVTK_ViewWindow* aViewWnd = GetVtkViewWindow(theWnd);
 686     if (!aViewWnd)
 687       return OK;
 688
 689     {
 690       OK = true;
 691       vtkRenderer *aRenderer = aViewWnd->getRenderer();
 692       VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
 693       vtkActorCollection *aCollection = aCopy.GetActors();
 694       aCollection->InitTraversal();
 695
 696       switch (theAction) {
 697       case eDisplayAll: {
 698         while (vtkActor *anAct = aCollection->GetNextActor()) {
 699           if (SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>(anAct)) {
 700                 MESSAGE("--- display " << anActor);
 701             anActor->SetVisibility(true);
 702           }
 703         }
 704         break;
 705       }
 706       case eDisplayOnly:
 707       case eEraseAll: {
 708         //MESSAGE("---case eDisplayOnly");
 709         while (vtkActor *anAct = aCollection->GetNextActor()) {
 710           if (SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>(anAct)) {
 711                 //MESSAGE("--- erase " << anActor);
 712             anActor->SetVisibility(false);
 713           }
 714         }
 715       }
 716       default: {
 717         if (SMESH_Actor *anActor = FindActorByEntry(theWnd,theEntry)) {
 718           switch (theAction) {
 719             case eDisplay:
 720             case eDisplayOnly:
 721                 //MESSAGE("--- display " << anActor);
 722               anActor->Update();
 723               anActor->SetVisibility(true);
 724               if (theAction == eDisplayOnly) aRenderer->ResetCameraClippingRange();
 725               break;
 726             case eErase:
 727                 //MESSAGE("--- erase " << anActor);
 728               anActor->SetVisibility(false);
 729               break;
 730           }
 731         } else {
 732           switch (theAction) {
 733           case eDisplay:
 734           case eDisplayOnly:
 735             {
 736                 //MESSAGE("---");
 737               SalomeApp_Study* aStudy = dynamic_cast<SalomeApp_Study*>(theWnd->getViewManager()->study());
 738               _PTR(Study) aDocument = aStudy->studyDS();
 739               // Pass non-visual objects (hypotheses, etc.), return true in this case
 740               CORBA::Long anId = aDocument->StudyId();
 741               TVisualObjPtr aVisualObj;
 742               if ( (aVisualObj = GetVisualObj(anId,theEntry)) && aVisualObj->IsValid())
 743               {
 744                 if ((anActor = CreateActor(aDocument,theEntry,true))) {
 745                   bool needFitAll = noSmeshActors(theWnd); // fit for the first object only
 746                   DisplayActor(theWnd,anActor);
 747                   // FitAll(); - PAL16770(Display of a group performs an automatic fit all)
 748                   if (needFitAll) FitAll();
 749                 } else {
 750                   OK = false;
 751                 }
 752               }
 753               break;
 754             }
 755           }
 756         }
 757       }
 758       }
 759     }
 760     return OK;
 761   }
 762
 763
 764   bool UpdateView(EDisplaing theAction, const char* theEntry){
 765         //MESSAGE("UpdateView");
 766     SalomeApp_Study* aStudy = dynamic_cast< SalomeApp_Study* >( GetActiveStudy() );
 767     SalomeApp_Application* app = dynamic_cast< SalomeApp_Application* >( aStudy->application() );
 768     SUIT_ViewWindow *aWnd = app->activeViewManager()->getActiveView();
 769     return UpdateView(aWnd,theAction,theEntry);
 770   }
 771
 772   void UpdateView(){
 773     if(SVTK_ViewWindow* aWnd = SMESH::GetCurrentVtkView()){
 774       LightApp_SelectionMgr* mgr = SMESHGUI::selectionMgr();
 775       SALOME_ListIO selected; mgr->selectedObjects( selected );
 776
 777       if( selected.Extent() == 0){
 778         vtkRenderer* aRenderer = aWnd->getRenderer();
 779         VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
 780         vtkActorCollection *aCollection = aCopy.GetActors();
 781         aCollection->InitTraversal();
 782         while(vtkActor *anAct = aCollection->GetNextActor()){
 783           if(SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>(anAct)){
 784             if(anActor->hasIO())
 785               if (!Update(anActor->getIO(),anActor->GetVisibility()))
 786                 break; // avoid multiple warinings if visu failed
 787           }
 788         }
 789       }else{
 790         SALOME_ListIteratorOfListIO anIter( selected );
 791         for( ; anIter.More(); anIter.Next()){
 792           Handle(SALOME_InteractiveObject) anIO = anIter.Value();
 793           if ( !Update(anIO,true) )
 794             break; // avoid multiple warinings if visu failed
 795         }
 796       }
 797       RepaintCurrentView();
 798     }
 799   }
 800
 801
 802   bool Update(const Handle(SALOME_InteractiveObject)& theIO, bool theDisplay)
 803   {
 804         MESSAGE("Update");
 805     _PTR(Study) aStudy = GetActiveStudyDocument();
 806     CORBA::Long anId = aStudy->StudyId();
 807     if ( TVisualObjPtr aVisualObj = SMESH::GetVisualObj(anId,theIO->getEntry())) {
 808       if ( theDisplay )
 809         UpdateView(SMESH::eDisplay,theIO->getEntry());
 810       return true;
 811     }
 812     return false;
 813   }
 814
 815   bool UpdateNulData(const Handle(SALOME_InteractiveObject)& theIO, bool theDisplay)
 816   {
 817         MESSAGE("UpdateNulData");
 818     _PTR(Study) aStudy = GetActiveStudyDocument();
 819     CORBA::Long anId = aStudy->StudyId();
 820     if ( TVisualObjPtr aVisualObj = SMESH::GetVisualObj(anId,theIO->getEntry(), true)) {
 821       if ( theDisplay )
 822         UpdateView(SMESH::eDisplay,theIO->getEntry());
 823       return true;
 824     }
 825     return false;
 826   }
 827
 828   void UpdateSelectionProp( SMESHGUI* theModule ) {
 829     if( !theModule )
 830       return;
 831
 832     SalomeApp_Application* app = dynamic_cast< SalomeApp_Application* >( theModule->application() );
 833     if( !app )
 834     {
 835       MESSAGE( "UpdateSelectionProp: Application is null" );
 836       return;
 837     }
 838
 839     SUIT_ViewManager* vm = app->activeViewManager();
 840     if( !vm )
 841     {
 842       MESSAGE( "UpdateSelectionProp: View manager is null" );
 843       return;
 844     }
 845
 846     QVector<SUIT_ViewWindow*> views = vm->getViews();
 847
 848     SUIT_ResourceMgr* mgr = SMESH::GetResourceMgr( theModule );
 849     if( !mgr )
 850     {
 851       MESSAGE( "UpdateSelectionProp: Resource manager is null" );
 852       return;
 853     }
 854
 855     QColor aHiColor = mgr->colorValue( "SMESH", "selection_object_color", Qt::white ),
 856            aSelColor = mgr->colorValue( "SMESH", "selection_element_color", Qt::yellow ),
 857            aPreColor = mgr->colorValue( "SMESH", "highlight_color", Qt::cyan );
 858
 859     int SW = mgr->integerValue( "SMESH", "selection_width", 5 ),
 860         PW = mgr->integerValue( "SMESH", "highlight_width", 5 );
 861
 862     // adjust highlight_width to the width of mesh entities
 863     int aElem0DSize = mgr->integerValue("SMESH", "elem0d_size", 5);
 864     int aLineWidth  = mgr->integerValue("SMESH", "element_width", 1);
 865     int maxSize = aElem0DSize;
 866     if (aElem0DSize > maxSize) maxSize = aElem0DSize;
 867     if (aLineWidth > maxSize) maxSize = aLineWidth;
 868     if (PW < maxSize + 2) PW = maxSize + 2;
 869
 870     double SP1 = mgr->doubleValue( "SMESH", "selection_precision_node", 0.025 ),
 871            SP2 = mgr->doubleValue( "SMESH", "selection_precision_element", 0.001 ),
 872            SP3 = mgr->doubleValue( "SMESH", "selection_precision_object", 0.025 );
 873
 874     for ( int i=0, n=views.count(); i<n; i++ ){
 875       // update VTK viewer properties
 876       if(SVTK_ViewWindow* aVtkView = GetVtkViewWindow( views[i] )){
 877         // mesh element selection
 878         aVtkView->SetSelectionProp(aSelColor.red()/255.,
 879                                    aSelColor.green()/255.,
 880                                    aSelColor.blue()/255.,
 881                                    SW );
 882         // tolerances
 883         aVtkView->SetSelectionTolerance(SP1, SP2, SP3);
 884
 885         // pre-selection
 886         aVtkView->SetPreselectionProp(aPreColor.red()/255.,
 887                                       aPreColor.green()/255.,
 888                                       aPreColor.blue()/255.,
 889                                       PW);
 890         // update actors
 891         vtkRenderer* aRenderer = aVtkView->getRenderer();
 892         VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
 893         vtkActorCollection *aCollection = aCopy.GetActors();
 894         aCollection->InitTraversal();
 895         while(vtkActor *anAct = aCollection->GetNextActor()){
 896           if(SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>(anAct)){
 897             anActor->SetHighlightColor(aHiColor.red()/255.,
 898                                        aHiColor.green()/255.,
 899                                        aHiColor.blue()/255.);
 900             anActor->SetPreHighlightColor(aPreColor.red()/255.,
 901                                           aPreColor.green()/255.,
 902                                           aPreColor.blue()/255.);
 903           }
 904         }
 905       }
 906     }
 907   }
 908
 909
 910   //----------------------------------------------------------------------------
 911   SVTK_Selector*
 912   GetSelector(SUIT_ViewWindow *theWindow)
 913   {
 914     if(SVTK_ViewWindow* aWnd = GetVtkViewWindow(theWindow))
 915       return aWnd->GetSelector();
 916
 917     return NULL;
 918   }
 919
 920   void SetFilter(const Handle(VTKViewer_Filter)& theFilter,
 921                  SVTK_Selector* theSelector)
 922   {
 923     if (theSelector)
 924       theSelector->SetFilter(theFilter);
 925   }
 926
 927   Handle(VTKViewer_Filter) GetFilter(int theId, SVTK_Selector* theSelector)
 928   {
 929     return theSelector->GetFilter(theId);
 930   }
 931
 932   bool IsFilterPresent(int theId, SVTK_Selector* theSelector)
 933   {
 934     return theSelector->IsFilterPresent(theId);
 935   }
 936
 937   void RemoveFilter(int theId, SVTK_Selector* theSelector)
 938   {
 939     theSelector->RemoveFilter(theId);
 940   }
 941
 942   void RemoveFilters(SVTK_Selector* theSelector)
 943   {
 944     for ( int id = SMESH::NodeFilter; theSelector && id < SMESH::LastFilter; id++ )
 945       theSelector->RemoveFilter( id );
 946   }
 947
 948   bool IsValid(SALOME_Actor* theActor, int theCellId,
 949                SVTK_Selector* theSelector)
 950   {
 951     return theSelector->IsValid(theActor,theCellId);
 952   }
 953
 954
 955   //----------------------------------------------------------------------------
 956   void SetPointRepresentation(bool theIsVisible){
 957     if(SVTK_ViewWindow* aViewWindow = GetCurrentVtkView()){
 958       vtkRenderer *aRenderer = aViewWindow->getRenderer();
 959       VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
 960       vtkActorCollection *aCollection = aCopy.GetActors();
 961       aCollection->InitTraversal();
 962       while(vtkActor *anAct = aCollection->GetNextActor()){
 963         if(SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>(anAct)){
 964           if(anActor->GetVisibility()){
 965             anActor->SetPointRepresentation(theIsVisible);
 966           }
 967         }
 968       }
 969       RepaintCurrentView();
 970     }
 971   }
 972
 973
 974   void SetPickable(SMESH_Actor* theActor){
 975     if(SVTK_ViewWindow* aWnd = GetCurrentVtkView()){
 976       int anIsAllPickable = (theActor == NULL);
 977       vtkRenderer *aRenderer = aWnd->getRenderer();
 978       VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
 979       vtkActorCollection *aCollection = aCopy.GetActors();
 980       aCollection->InitTraversal();
 981       while(vtkActor *anAct = aCollection->GetNextActor()){
 982         if(SALOME_Actor *anActor = dynamic_cast<SALOME_Actor*>(anAct)){
 983           if(anActor->GetVisibility()){
 984             anActor->SetPickable(anIsAllPickable);
 985           }
 986         }
 987       }
 988       if(theActor)
 989         theActor->SetPickable(!anIsAllPickable);
 990       RepaintCurrentView();
 991     }
 992   }
 993
 994
 995   //----------------------------------------------------------------------------
 996   int GetNameOfSelectedNodes(SVTK_Selector* theSelector,
 997                              const Handle(SALOME_InteractiveObject)& theIO,
 998                              QString& theName)
 999   {
1000     theName = "";
1001     TColStd_IndexedMapOfInteger aMapIndex;
1002     theSelector->GetIndex(theIO,aMapIndex);
1003
1004     for(int i = 1; i <= aMapIndex.Extent(); i++)
1005       theName += QString(" %1").arg(aMapIndex(i));
1006
1007     return aMapIndex.Extent();
1008   }
1009
1010   int GetNameOfSelectedElements(SVTK_Selector* theSelector,
1011                                 const Handle(SALOME_InteractiveObject)& theIO,
1012                                 QString& theName)
1013   {
1014     theName = "";
1015     TColStd_IndexedMapOfInteger aMapIndex;
1016     theSelector->GetIndex(theIO,aMapIndex);
1017
1018     typedef std::set<int> TIdContainer;
1019     TIdContainer anIdContainer;
1020     for( int i = 1; i <= aMapIndex.Extent(); i++)
1021       anIdContainer.insert(aMapIndex(i));
1022
1023     TIdContainer::const_iterator anIter = anIdContainer.begin();
1024     for( ; anIter != anIdContainer.end(); anIter++)
1025       theName += QString(" %1").arg(*anIter);
1026
1027     return aMapIndex.Extent();
1028   }
1029
1030
1031   int GetEdgeNodes(SVTK_Selector* theSelector,
1032                    const TVisualObjPtr& theVisualObject,
1033                    int& theId1,
1034                    int& theId2)
1035   {
1036     const SALOME_ListIO& selected = theSelector->StoredIObjects();
1037
1038     if ( selected.Extent() != 1 )
1039       return -1;
1040
1041     Handle(SALOME_InteractiveObject) anIO = selected.First();
1042     if ( anIO.IsNull() || !anIO->hasEntry() )
1043       return -1;
1044
1045     TColStd_IndexedMapOfInteger aMapIndex;
1046     theSelector->GetIndex( anIO, aMapIndex );
1047     if ( aMapIndex.Extent() != 2 )
1048       return -1;
1049
1050     int anObjId = -1, anEdgeNum = -1;
1051     for ( int i = 1; i <= aMapIndex.Extent(); i++ ) {
1052       int aVal = aMapIndex( i );
1053       if ( aVal > 0 )
1054         anObjId = aVal;
1055       else
1056         anEdgeNum = abs( aVal ) - 1;
1057     }
1058
1059     if ( anObjId == -1 || anEdgeNum == -1 )
1060       return -1;
1061
1062     return theVisualObject->GetEdgeNodes( anObjId, anEdgeNum, theId1, theId2 ) ? 1 : -1;
1063   }
1064
1065   //----------------------------------------------------------------------------
1066   int GetNameOfSelectedNodes(LightApp_SelectionMgr *theMgr,
1067                              const Handle(SALOME_InteractiveObject)& theIO,
1068                              QString& theName)
1069   {
1070     theName = "";
1071     if(theIO->hasEntry()){
1072       if(FindActorByEntry(theIO->getEntry())){
1073         TColStd_IndexedMapOfInteger aMapIndex;
1074         theMgr->GetIndexes(theIO,aMapIndex);
1075         for(int i = 1; i <= aMapIndex.Extent(); i++){
1076           theName += QString(" %1").arg(aMapIndex(i));
1077         }
1078         return aMapIndex.Extent();
1079       }
1080     }
1081     return -1;
1082   }
1083
1084   int GetNameOfSelectedNodes(LightApp_SelectionMgr *theMgr, QString& theName){
1085     theName = "";
1086     SALOME_ListIO selected; theMgr->selectedObjects( selected );
1087     if(selected.Extent() == 1){
1088       Handle(SALOME_InteractiveObject) anIO = selected.First();
1089       return GetNameOfSelectedNodes(theMgr,anIO,theName);
1090     }
1091     return -1;
1092   }
1093
1094
1095   int GetNameOfSelectedElements(LightApp_SelectionMgr *theMgr,
1096                                 const Handle(SALOME_InteractiveObject)& theIO,
1097                                 QString& theName)
1098   {
1099     theName = "";
1100     if(theIO->hasEntry()){
1101       if(FindActorByEntry(theIO->getEntry())){
1102         TColStd_IndexedMapOfInteger aMapIndex;
1103         theMgr->GetIndexes(theIO,aMapIndex);
1104         typedef std::set<int> TIdContainer;
1105         TIdContainer anIdContainer;
1106         for( int i = 1; i <= aMapIndex.Extent(); i++)
1107           anIdContainer.insert(aMapIndex(i));
1108         TIdContainer::const_iterator anIter = anIdContainer.begin();
1109         for( ; anIter != anIdContainer.end(); anIter++){
1110           theName += QString(" %1").arg(*anIter);
1111         }
1112         return aMapIndex.Extent();
1113       }
1114     }
1115     return -1;
1116   }
1117
1118
1119   int GetNameOfSelectedElements(LightApp_SelectionMgr *theMgr, QString& theName)
1120   {
1121     theName = "";
1122     SALOME_ListIO selected; theMgr->selectedObjects( selected );
1123
1124     if( selected.Extent() == 1){
1125       Handle(SALOME_InteractiveObject) anIO = selected.First();
1126       return GetNameOfSelectedElements(theMgr,anIO,theName);
1127     }
1128     return -1;
1129   }
1130
1131   int GetSelected(LightApp_SelectionMgr*       theMgr,
1132                   TColStd_IndexedMapOfInteger& theMap,
1133                   const bool                   theIsElement)
1134   {
1135     theMap.Clear();
1136     SALOME_ListIO selected; theMgr->selectedObjects( selected );
1137
1138     if ( selected.Extent() == 1 )
1139     {
1140       Handle(SALOME_InteractiveObject) anIO = selected.First();
1141       if ( anIO->hasEntry() ) {
1142         theMgr->GetIndexes( anIO, theMap );
1143       }
1144     }
1145     return theMap.Extent();
1146   }
1147
1148
1149   int GetEdgeNodes( LightApp_SelectionMgr* theMgr, int& theId1, int& theId2 )
1150   {
1151     SALOME_ListIO selected; theMgr->selectedObjects( selected );
1152
1153     if ( selected.Extent() != 1 )
1154       return -1;
1155
1156     Handle(SALOME_InteractiveObject) anIO = selected.First();
1157     if ( anIO.IsNull() || !anIO->hasEntry() )
1158       return -1;
1159
1160     SMESH_Actor *anActor = SMESH::FindActorByEntry( anIO->getEntry() );
1161     if ( anActor == 0 )
1162       return -1;
1163
1164     TColStd_IndexedMapOfInteger aMapIndex;
1165     theMgr->GetIndexes( anIO, aMapIndex );
1166     if ( aMapIndex.Extent() != 2 )
1167       return -1;
1168
1169     int anObjId = -1, anEdgeNum = -1;
1170     for ( int i = 1; i <= aMapIndex.Extent(); i++ ) {
1171       int aVal = aMapIndex( i );
1172       if ( aVal > 0 )
1173         anObjId = aVal;
1174       else
1175         anEdgeNum = abs( aVal );
1176     }
1177
1178     if ( anObjId == -1 || anEdgeNum == -1 )
1179       return -1;
1180
1181     return anActor->GetObject()->GetEdgeNodes( anObjId, anEdgeNum, theId1, theId2 ) ? 1 : -1;
1182   }
1183
1184   void SetControlsPrecision( const long theVal )
1185   {
1186     if( SVTK_ViewWindow* aWnd = SMESH::GetCurrentVtkView() )
1187     {
1188       vtkRenderer *aRenderer = aWnd->getRenderer();
1189       VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
1190       vtkActorCollection *aCollection = aCopy.GetActors();
1191       aCollection->InitTraversal();
1192
1193       while ( vtkActor *anAct = aCollection->GetNextActor())
1194       {
1195         if ( SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>( anAct ) )
1196         {
1197           anActor->SetControlsPrecision( theVal );
1198           anActor->SetControlMode( anActor->GetControlMode() );
1199         }
1200       }
1201
1202     }
1203   }
1204
1205   //----------------------------------------------------------------------------
1206   // internal function
1207   void ComputeBoundsParam( vtkFloatingPointType theBounds[6],
1208                            vtkFloatingPointType theDirection[3],
1209                            vtkFloatingPointType theMinPnt[3],
1210                            vtkFloatingPointType& theMaxBoundPrj,
1211                            vtkFloatingPointType& theMinBoundPrj )
1212   {
1213     //Enlarge bounds in order to avoid conflicts of precision
1214     for(int i = 0; i < 6; i += 2){
1215       static double EPS = 1.0E-3;
1216       vtkFloatingPointType aDelta = (theBounds[i+1] - theBounds[i])*EPS;
1217       theBounds[i] -= aDelta;
1218       theBounds[i+1] += aDelta;
1219     }
1220
1221     vtkFloatingPointType aBoundPoints[8][3] = { {theBounds[0],theBounds[2],theBounds[4]},
1222                                                 {theBounds[1],theBounds[2],theBounds[4]},
1223                                                 {theBounds[0],theBounds[3],theBounds[4]},
1224                                                 {theBounds[1],theBounds[3],theBounds[4]},
1225                                                 {theBounds[0],theBounds[2],theBounds[5]},
1226                                                 {theBounds[1],theBounds[2],theBounds[5]},
1227                                                 {theBounds[0],theBounds[3],theBounds[5]},
1228                                                 {theBounds[1],theBounds[3],theBounds[5]}};
1229
1230     int aMaxId = 0, aMinId = aMaxId;
1231     theMaxBoundPrj = vtkMath::Dot(theDirection,aBoundPoints[aMaxId]);
1232     theMinBoundPrj = theMaxBoundPrj;
1233     for(int i = 1; i < 8; i++){
1234       vtkFloatingPointType aTmp = vtkMath::Dot(theDirection,aBoundPoints[i]);
1235       if(theMaxBoundPrj < aTmp){
1236         theMaxBoundPrj = aTmp;
1237         aMaxId = i;
1238       }
1239       if(theMinBoundPrj > aTmp){
1240         theMinBoundPrj = aTmp;
1241         aMinId = i;
1242       }
1243     }
1244     vtkFloatingPointType *aMinPnt = aBoundPoints[aMaxId];
1245     theMinPnt[0] = aMinPnt[0];
1246     theMinPnt[1] = aMinPnt[1];
1247     theMinPnt[2] = aMinPnt[2];
1248   }
1249
1250   // internal function
1251   void DistanceToPosition( vtkFloatingPointType theBounds[6],
1252                            vtkFloatingPointType theDirection[3],
1253                            vtkFloatingPointType theDist,
1254                            vtkFloatingPointType thePos[3] )
1255   {
1256     vtkFloatingPointType aMaxBoundPrj, aMinBoundPrj, aMinPnt[3];
1257     ComputeBoundsParam(theBounds,theDirection,aMinPnt,aMaxBoundPrj,aMinBoundPrj);
1258     vtkFloatingPointType aLength = (aMaxBoundPrj-aMinBoundPrj)*theDist;
1259     thePos[0] = aMinPnt[0]-theDirection[0]*aLength;
1260     thePos[1] = aMinPnt[1]-theDirection[1]*aLength;
1261     thePos[2] = aMinPnt[2]-theDirection[2]*aLength;
1262   }
1263
1264   // internal function (currently unused, left just in case)
1265   void PositionToDistance( vtkFloatingPointType theBounds[6],
1266                            vtkFloatingPointType theDirection[3],
1267                            vtkFloatingPointType thePos[3],
1268                            vtkFloatingPointType& theDist )
1269   {
1270     vtkFloatingPointType aMaxBoundPrj, aMinBoundPrj, aMinPnt[3];
1271     ComputeBoundsParam(theBounds,theDirection,aMinPnt,aMaxBoundPrj,aMinBoundPrj);
1272     vtkFloatingPointType aPrj = vtkMath::Dot(theDirection,thePos);
1273     theDist = (aPrj-aMinBoundPrj)/(aMaxBoundPrj-aMinBoundPrj);
1274   }
1275
1276   bool ComputeClippingPlaneParameters( std::list<vtkActor*> theActorList,
1277                                        vtkFloatingPointType theNormal[3],
1278                                        vtkFloatingPointType theDist,
1279                                        vtkFloatingPointType theBounds[6],
1280                                        vtkFloatingPointType theOrigin[3] )
1281   {
1282     bool anIsOk = false;
1283     theBounds[0] = theBounds[2] = theBounds[4] = VTK_DOUBLE_MAX;
1284     theBounds[1] = theBounds[3] = theBounds[5] = -VTK_DOUBLE_MAX;
1285     std::list<vtkActor*>::iterator anIter = theActorList.begin();
1286     for( ; anIter != theActorList.end(); anIter++ ) {
1287       if( vtkActor* aVTKActor = *anIter ) {
1288         if( SMESH_Actor* anActor = SMESH_Actor::SafeDownCast( aVTKActor ) ) {
1289           vtkFloatingPointType aBounds[6];
1290           anActor->GetUnstructuredGrid()->GetBounds( aBounds );
1291           theBounds[0] = std::min( theBounds[0], aBounds[0] );
1292           theBounds[1] = std::max( theBounds[1], aBounds[1] );
1293           theBounds[2] = std::min( theBounds[2], aBounds[2] );
1294           theBounds[3] = std::max( theBounds[3], aBounds[3] );
1295           theBounds[4] = std::min( theBounds[4], aBounds[4] );
1296           theBounds[5] = std::max( theBounds[5], aBounds[5] );
1297           anIsOk = true;
1298         }
1299       }
1300     }
1301
1302     if( !anIsOk )
1303       return false;
1304
1305     DistanceToPosition( theBounds, theNormal, theDist, theOrigin );
1306     return true;
1307   }
1308
1309 #ifndef DISABLE_PLOT2DVIEWER
1310   //================================================================================
1311   /*!
1312    * \brief Find all SMESH_Actor's in the View Window.
1313    * If actor constains Plot2d_Histogram object remove it from each Plot2d Viewer.
1314    */
1315   //================================================================================
1316
1317   void ClearPlot2Viewers( SUIT_ViewWindow* theWindow ) {
1318     if(SVTK_ViewWindow* aViewWindow = GetVtkViewWindow(theWindow)){
1319       vtkRenderer *aRenderer = aViewWindow->getRenderer();
1320       VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
1321       vtkActorCollection *aCollection = aCopy.GetActors();
1322       aCollection->InitTraversal();
1323       while(vtkActor *anAct = aCollection->GetNextActor()){
1324         if(SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>(anAct)){
1325           if(anActor->hasIO() && anActor->GetPlot2Histogram() ){
1326             ProcessIn2DViewers(anActor,RemoveFrom2dViewer);
1327           }
1328         }
1329       }
1330     }
1331   }
1332
1333 #endif
1334
1335 } // end of namespace SMESH