src/SMESHGUI/SMESHGUI_VTKUtils.cxx

   1 // Copyright (C) 2007-2019  CEA/DEN, EDF R&D, OPEN CASCADE
   2 //
   3 // Copyright (C) 2003-2007  OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
   4 // CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
   5 //
   6 // This library is free software; you can redistribute it and/or
   7 // modify it under the terms of the GNU Lesser General Public
   8 // License as published by the Free Software Foundation; either
   9 // version 2.1 of the License, or (at your option) any later version.
  10 //
  11 // This library is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 // Lesser General Public License for more details.
  15 //
  16 // You should have received a copy of the GNU Lesser General Public
  17 // License along with this library; if not, write to the Free Software
  18 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  19 //
  20 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
  21 //
  22
  23 // SMESH SMESHGUI : GUI for SMESH component
  24 // File   : SMESHGUI_VTKUtils.cxx
  25 // Author : Open CASCADE S.A.S.
  26 // SMESH includes
  27 //
  28 #include "SMESHGUI_VTKUtils.h"
  29
  30 #include "SMESHGUI.h"
  31 #include "SMESHGUI_Filter.h"
  32 #include "SMESHGUI_Utils.h"
  33 #include "SMDS_Mesh.hxx"
  34 #include "SMESH_Actor.h"
  35 #include "SMESH_ActorProps.h"
  36 #include "SMESH_ActorUtils.h"
  37 #include "SMESH_CellLabelActor.h"
  38 #include "SMESH_ControlsDef.hxx"
  39 #include "SMESH_NodeLabelActor.h"
  40 #include "SMESH_ObjectDef.h"
  41
  42 // SALOME GUI includes
  43 #include <SUIT_Desktop.h>
  44 #include <SUIT_Session.h>
  45 #include <SUIT_MessageBox.h>
  46 #include <SUIT_ViewManager.h>
  47 #include <SUIT_ResourceMgr.h>
  48
  49 #include <SALOME_ListIO.hxx>
  50
  51 #include <SVTK_Selector.h>
  52 #include <SVTK_ViewModel.h>
  53 #include <SVTK_ViewWindow.h>
  54
  55 #include <VTKViewer_Algorithm.h>
  56
  57 #include <LightApp_SelectionMgr.h>
  58 #include <SalomeApp_Application.h>
  59 #include <SalomeApp_Study.h>
  60
  61 // SALOME KERNEL includes
  62 #include <utilities.h>
  63
  64 // IDL includes
  65 #include <SALOMEconfig.h>
  66 #include CORBA_CLIENT_HEADER(SMESH_Mesh)
  67 #include CORBA_CLIENT_HEADER(SMESH_Group)
  68
  69 // VTK includes
  70 #include <vtkMath.h>
  71 #include <vtkRenderer.h>
  72 #include <vtkActorCollection.h>
  73 #include <vtkUnstructuredGrid.h>
  74
  75 // OCCT includes
  76 #include <Standard_ErrorHandler.hxx>
  77
  78 namespace SMESH
  79 {
  80   typedef std::map<std::string,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     TVisualObjCont::iterator anIter = VISUAL_OBJ_CONT.find(theEntry);
 141     if(anIter != VISUAL_OBJ_CONT.end()) {
 142       // for unknown reason, object destructor is not called, so clear object manually
 143       anIter->second->GetUnstructuredGrid()->SetCells(0,0,0,0,0);
 144       anIter->second->GetUnstructuredGrid()->SetPoints(0);
 145     }
 146     VISUAL_OBJ_CONT.erase(theEntry);
 147
 148     if(actorRemoved)
 149       aStudy->setVisibilityState(theEntry, Qtx::HiddenState);
 150   }
 151   //================================================================================
 152   /*!
 153    * \brief Remove all VisualObjs and their actors from all views
 154    */
 155   //================================================================================
 156
 157   void RemoveAllObjectsWithActors()
 158   {
 159     SalomeApp_Application* app = dynamic_cast<SalomeApp_Application*>
 160       ( SUIT_Session::session()->activeApplication() );
 161     if (!app) return;
 162     ViewManagerList viewMgrs = app->viewManagers();
 163     for ( int iM = 0; iM < viewMgrs.count(); ++iM ) {
 164       SUIT_ViewManager* aViewManager = viewMgrs.at( iM );
 165       if ( aViewManager && aViewManager->getType() == SVTK_Viewer::Type()) {
 166         QVector<SUIT_ViewWindow*> views = aViewManager->getViews();
 167         for ( int iV = 0; iV < views.count(); ++iV ) {
 168           if(SVTK_ViewWindow* vtkWnd = GetVtkViewWindow(views[iV])) {
 169             vtkRenderer *aRenderer = vtkWnd->getRenderer();
 170             VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
 171             vtkActorCollection *actors = aCopy.GetActors();
 172             for (int i = 0; i < actors->GetNumberOfItems(); ++i ) {
 173               // size of actors changes inside the loop
 174               if (SMESH_Actor *actor = dynamic_cast<SMESH_Actor*>(actors->GetItemAsObject(i)))
 175               {
 176                 vtkWnd->RemoveActor(actor);
 177                 actor->Delete();
 178               }
 179             }
 180           }
 181         }
 182       }
 183     }
 184     TVisualObjCont::iterator anIter = VISUAL_OBJ_CONT.begin();
 185     for ( ; anIter != VISUAL_OBJ_CONT.end(); ++anIter ) {
 186       // for unknown reason, object destructor is not called, so clear object manually
 187       anIter->second->GetUnstructuredGrid()->SetCells(0,0,0,0,0);
 188       anIter->second->GetUnstructuredGrid()->SetPoints(0);
 189     }
 190     VISUAL_OBJ_CONT.clear();
 191   }
 192
 193   //================================================================================
 194   /*!
 195    * \brief Remove all VisualObjs of a study
 196    */
 197   //================================================================================
 198
 199   void RemoveVisuData()
 200   {
 201     SalomeApp_Application* app = dynamic_cast<SalomeApp_Application*>
 202       ( SUIT_Session::session()->activeApplication() );
 203     if (!app) return;
 204     ViewManagerList viewMgrs = app->viewManagers();
 205     for ( int iM = 0; iM < viewMgrs.count(); ++iM ) {
 206       SUIT_ViewManager* aViewManager = viewMgrs.at( iM );
 207       if ( aViewManager && aViewManager->getType() == SVTK_Viewer::Type() ) {
 208         QVector<SUIT_ViewWindow*> views = aViewManager->getViews();
 209         for ( int iV = 0; iV < views.count(); ++iV ) {
 210           if(SVTK_ViewWindow* vtkWnd = GetVtkViewWindow(views[iV])) {
 211             vtkRenderer *aRenderer = vtkWnd->getRenderer();
 212             VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
 213             vtkActorCollection *actors = aCopy.GetActors();
 214             for (int i = 0; i < actors->GetNumberOfItems(); ++i ) {
 215               // size of actors changes inside the loop
 216               if(SMESH_Actor *actor = dynamic_cast<SMESH_Actor*>(actors->GetItemAsObject(i)))
 217               {
 218                 vtkWnd->RemoveActor(actor);
 219                 actor->Delete();
 220               }
 221             }
 222           }
 223         }
 224       }
 225     }
 226     TVisualObjCont::iterator anIter = VISUAL_OBJ_CONT.begin();
 227     for ( ; anIter != VISUAL_OBJ_CONT.end(); ) {
 228       // for unknown reason, object destructor is not called, so clear object manually
 229       anIter->second->GetUnstructuredGrid()->SetCells(0,0,0,0,0);
 230       anIter->second->GetUnstructuredGrid()->SetPoints(0);
 231       VISUAL_OBJ_CONT.erase( anIter++ ); // anIter++ returns a copy of self before incrementing
 232     }
 233   }
 234
 235   //================================================================================
 236   /*!
 237    * \brief Remove/update actors while module activation
 238    *  \param [in] wnd - window
 239    *
 240    * At module activation, groups and sub-meshes can be removed on engine side due
 241    * to modification of meshed geometry, while their actors can remain.
 242    * Here we remove/update SMESH_Actor's of changed objects. State (emptiness) of objects
 243    * is defined by their icons in the Object Browser
 244    */
 245   //================================================================================
 246
 247   void UpdateActorsAfterUpdateStudy( SUIT_ViewWindow* theWindow )
 248   {
 249     const char* emptyIcon = "ICON_SMESH_TREE_MESH_WARN";
 250     _PTR(Study) aStudy = SMESH::getStudy();
 251
 252     if ( SVTK_ViewWindow* aViewWindow = GetVtkViewWindow( theWindow ))
 253     {
 254       vtkRenderer *aRenderer = aViewWindow->getRenderer();
 255       VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
 256       vtkActorCollection *aCollection = aCopy.GetActors();
 257       aCollection->InitTraversal();
 258       while ( vtkActor *actor = aCollection->GetNextActor() ) {
 259         if ( SMESH_Actor *smeshActor = dynamic_cast<SMESH_Actor*>( actor ))
 260         {
 261           if ( !smeshActor->hasIO() )
 262             continue;
 263           Handle(SALOME_InteractiveObject) io = smeshActor->getIO();
 264           if ( !io->hasEntry() )
 265             continue;
 266           _PTR(SObject) so = aStudy->FindObjectID( io->getEntry() );
 267           if ( !so )
 268             continue; // seems impossible
 269
 270           CORBA::Object_var obj = SMESH::SObjectToObject( so );
 271           if ( CORBA::is_nil( obj )) // removed object
 272           {
 273             RemoveActor( theWindow, smeshActor );
 274             continue;
 275           }
 276
 277           bool toShow = smeshActor->GetVisibility();
 278           _PTR(GenericAttribute) attr;
 279           if ( toShow && so->FindAttribute( attr, "AttributePixMap" )) // check emptiness
 280           {
 281             _PTR(AttributePixMap) pixMap = attr;
 282             toShow = ( pixMap->GetPixMap() != emptyIcon );
 283           }
 284           //smeshActor->Update();
 285           UpdateView( theWindow, toShow ? eDisplay : eErase, io->getEntry() );
 286         }
 287       }
 288     }
 289     return;
 290   }
 291
 292   //================================================================================
 293   /*!
 294    * \brief Notify the user on problems during visualization
 295    */
 296   //================================================================================
 297
 298   void OnVisuException()
 299   {
 300     try {
 301       OCC_CATCH_SIGNALS;
 302       // PAL16774 (Crash after display of many groups). Salome sometimes crashes just
 303       // after or at showing this message, so we do an additional check of available memory
 304 //       char* buf = new char[100*1024];
 305 //       delete [] buf;
 306       SUIT_MessageBox::warning(SMESHGUI::desktop(), QObject::tr("SMESH_WRN_WARNING"),
 307                                QObject::tr("SMESH_VISU_PROBLEM"));
 308     } catch (...) {
 309       // no more memory at all: last resort
 310       MESSAGE_BEGIN ( "SMESHGUI_VTKUtils::OnVisuException(), exception even at showing a message!!!" <<
 311                       std::endl << "Try to remove all visual data..." );
 312       if (theVISU_MemoryReserve) {
 313         delete theVISU_MemoryReserve;
 314         theVISU_MemoryReserve = 0;
 315       }
 316       RemoveAllObjectsWithActors();
 317       SUIT_MessageBox::warning(SMESHGUI::desktop(), QObject::tr("SMESH_WRN_WARNING"),
 318                                QObject::tr("SMESH_VISU_PROBLEM_CLEAR"));
 319       MESSAGE_END ( "...done" );
 320     }
 321   }
 322   //================================================================================
 323   /*!
 324    * \brief Returns an updated visual object
 325    */
 326   //================================================================================
 327
 328   TVisualObjPtr GetVisualObj(const char* theEntry, bool nulData){
 329     TVisualObjPtr aVisualObj;
 330     try{
 331       OCC_CATCH_SIGNALS;
 332       TVisualObjCont::iterator anIter = VISUAL_OBJ_CONT.find(theEntry);
 333       if(anIter != VISUAL_OBJ_CONT.end()){
 334         aVisualObj = anIter->second;
 335       }else{
 336         SalomeApp_Application* app =
 337           dynamic_cast<SalomeApp_Application*>( SMESHGUI::activeStudy()->application() );
 338         _PTR(Study) aStudy = SMESH::getStudy();
 339         _PTR(SObject) aSObj = aStudy->FindObjectID(theEntry);
 340         if(aSObj){
 341           _PTR(GenericAttribute) anAttr;
 342           if(aSObj->FindAttribute(anAttr,"AttributeIOR")){
 343             _PTR(AttributeIOR) anIOR = anAttr;
 344             CORBA::String_var aVal = anIOR->Value().c_str();
 345             CORBA::Object_var anObj = app->orb()->string_to_object( aVal.in() );
 346             if(!CORBA::is_nil(anObj)){
 347               //Try narrow to SMESH_Mesh interface
 348               SMESH::SMESH_Mesh_var aMesh = SMESH::SMESH_Mesh::_narrow(anObj);
 349               if(!aMesh->_is_nil()){
 350                 aVisualObj.reset(new SMESH_MeshObj(aMesh));
 351                 TVisualObjCont::value_type aValue(theEntry,aVisualObj);
 352                 VISUAL_OBJ_CONT.insert(aValue);
 353               }
 354               //Try narrow to SMESH_Group interface
 355               SMESH::SMESH_GroupBase_var aGroup = SMESH::SMESH_GroupBase::_narrow(anObj);
 356               if(!aGroup->_is_nil()){
 357                 _PTR(SObject) aFatherSObj = aSObj->GetFather();
 358                 if(!aFatherSObj) return aVisualObj;
 359                 aFatherSObj = aFatherSObj->GetFather();
 360                 if(!aFatherSObj) return aVisualObj;
 361                 CORBA::String_var anEntry = aFatherSObj->GetID().c_str();
 362                 TVisualObjPtr aVisObj = GetVisualObj(anEntry.in());
 363                 if(SMESH_MeshObj* aMeshObj = dynamic_cast<SMESH_MeshObj*>(aVisObj.get())){
 364                   aVisualObj.reset(new SMESH_GroupObj(aGroup,aMeshObj));
 365                   TVisualObjCont::value_type aValue(theEntry,aVisualObj);
 366                   VISUAL_OBJ_CONT.insert(aValue);
 367                 }
 368               }
 369               //Try narrow to SMESH_subMesh interface
 370               SMESH::SMESH_subMesh_var aSubMesh = SMESH::SMESH_subMesh::_narrow(anObj);
 371               if(!aSubMesh->_is_nil()){
 372                 _PTR(SObject) aFatherSObj = aSObj->GetFather();
 373                 if(!aFatherSObj) return aVisualObj;
 374                 aFatherSObj = aFatherSObj->GetFather();
 375                 if(!aFatherSObj) return aVisualObj;
 376                 CORBA::String_var anEntry = aFatherSObj->GetID().c_str();
 377                 TVisualObjPtr aVisObj = GetVisualObj(anEntry.in());
 378                 if(SMESH_MeshObj* aMeshObj = dynamic_cast<SMESH_MeshObj*>(aVisObj.get())){
 379                   aVisualObj.reset(new SMESH_subMeshObj(aSubMesh,aMeshObj));
 380                   TVisualObjCont::value_type aValue(theEntry,aVisualObj);
 381                   VISUAL_OBJ_CONT.insert(aValue);
 382                 }
 383               }
 384             }
 385           }
 386         }
 387       }
 388     }catch(...){
 389       INFOS("GetMeshObj - There is no SMESH_Mesh object for the SALOMEDS::Strudy and Entry!!!");
 390       return TVisualObjPtr();
 391     }
 392     // Update object
 393     bool objModified = false;
 394     if ( aVisualObj ) {
 395       try {
 396         OCC_CATCH_SIGNALS;
 397         if (nulData)
 398           objModified = aVisualObj->NulData();
 399         else
 400           objModified = aVisualObj->Update();
 401       }
 402       catch (...) {
 403         MESSAGE ( "Exception in SMESHGUI_VTKUtils::GetVisualObj()" );
 404         RemoveVisualObjectWithActors( theEntry ); // remove this object
 405         OnVisuException();
 406         aVisualObj.reset();
 407       }
 408     }
 409
 410     if ( objModified ) {
 411       // PAL16631. Measurements showed that to show aVisualObj in SHADING(default) mode,
 412       // ~5 times more memory is used than it occupies.
 413       // Warn the user if there is less free memory than 30 sizes of a grid
 414       // TODO: estimate memory usage in other modes and take current mode into account
 415       int freeMB = SMDS_Mesh::CheckMemory(true);
 416       int usedMB = aVisualObj->GetUnstructuredGrid()->GetActualMemorySize() / 1024;
 417       //MESSAGE("SMESHGUI_VTKUtils::GetVisualObj(), freeMB=" << freeMB << ", usedMB=" <<usedMB);
 418       if ( freeMB > 0 && usedMB * 5 > freeMB ) {
 419         bool continu = false;
 420         if ( usedMB * 3 > freeMB )
 421           // don't even try to show
 422           SUIT_MessageBox::warning(SMESHGUI::desktop(), QObject::tr("SMESH_WRN_WARNING"),
 423                                    QObject::tr("SMESH_NO_MESH_VISUALIZATION"));
 424         else
 425           // there is a chance to succeed
 426           continu = SUIT_MessageBox::warning
 427             (SMESHGUI::desktop(),
 428              QObject::tr("SMESH_WRN_WARNING"),
 429              QObject::tr("SMESH_CONTINUE_MESH_VISUALIZATION"),
 430              SUIT_MessageBox::Yes | SUIT_MessageBox::No,
 431              SUIT_MessageBox::Yes ) == SUIT_MessageBox::Yes;
 432         if ( !continu ) {
 433           // remove the corresponding actors from all views
 434           RemoveVisualObjectWithActors( theEntry );
 435           aVisualObj.reset();
 436         }
 437       }
 438     }
 439
 440     return aVisualObj;
 441   }
 442
 443
 444   /*! Return active view window, if it instantiates SVTK_ViewWindow class,
 445    *  otherwise find or create corresponding view window, make it active and return it.
 446    *  \note Active VVTK_ViewWindow can be returned, because it inherits SVTK_ViewWindow.
 447    */
 448   SVTK_ViewWindow* GetViewWindow (const SalomeApp_Module* theModule,
 449                                   bool createIfNotFound)
 450   {
 451     SalomeApp_Application* anApp;
 452     if (theModule)
 453       anApp = theModule->getApp();
 454     else
 455       anApp = dynamic_cast<SalomeApp_Application*>
 456         (SUIT_Session::session()->activeApplication());
 457
 458     if (anApp) {
 459       if (SVTK_ViewWindow* aView = dynamic_cast<SVTK_ViewWindow*>(anApp->desktop()->activeWindow()))
 460         return aView;
 461
 462       SUIT_ViewManager* aViewManager =
 463         anApp->getViewManager(SVTK_Viewer::Type(), createIfNotFound);
 464       if (aViewManager) {
 465         if (SUIT_ViewWindow* aViewWindow = aViewManager->getActiveView()) {
 466           if (SVTK_ViewWindow* aView = dynamic_cast<SVTK_ViewWindow*>(aViewWindow)) {
 467             aViewWindow->raise();
 468             aViewWindow->setFocus();
 469             return aView;
 470           }
 471         }
 472       }
 473     }
 474     return NULL;
 475   }
 476
 477   SVTK_ViewWindow* FindVtkViewWindow (SUIT_ViewManager* theMgr,
 478                                       SUIT_ViewWindow * theWindow)
 479   {
 480     if( !theMgr )
 481       return NULL;
 482
 483     QVector<SUIT_ViewWindow*> views = theMgr->getViews();
 484     if( views.contains( theWindow ) )
 485       return GetVtkViewWindow( theWindow );
 486     else
 487       return NULL;
 488   }
 489
 490   SVTK_ViewWindow* GetVtkViewWindow(SUIT_ViewWindow* theWindow){
 491     return dynamic_cast<SVTK_ViewWindow*>(theWindow);
 492   }
 493
 494 /*  SUIT_ViewWindow* GetActiveWindow()
 495   {
 496     SalomeApp_Application* app = dynamic_cast<SalomeApp_Application*>( SUIT_Session::session()->activeApplication() );
 497     if( !app )
 498       return NULL;
 499     SUIT_ViewManager* mgr = app->activeViewManager();
 500     if( mgr )
 501       return mgr->getActiveView();
 502     else
 503       return NULL;
 504   }*/
 505
 506   SVTK_ViewWindow* GetCurrentVtkView(){
 507     return GetVtkViewWindow( GetActiveWindow() );
 508   }
 509
 510
 511   void RepaintCurrentView()
 512   {
 513     if (SVTK_ViewWindow* wnd = GetCurrentVtkView())
 514     {
 515       try {
 516         OCC_CATCH_SIGNALS;
 517         wnd->getRenderer()->Render();
 518         wnd->Repaint(false);
 519       }
 520       catch (...) {
 521         MESSAGE ( "Exception in SMESHGUI_VTKUtils::RepaintCurrentView()" );
 522         OnVisuException();
 523       }
 524     }
 525   }
 526
 527   void RepaintViewWindow(SVTK_ViewWindow* theWindow)
 528   {
 529     try {
 530       OCC_CATCH_SIGNALS;
 531       theWindow->getRenderer()->Render();
 532       theWindow->Repaint();
 533     }
 534     catch (...) {
 535       MESSAGE ( "Exception in SMESHGUI_VTKUtils::RepaintViewWindow(SVTK_ViewWindow*)" );
 536       OnVisuException();
 537     }
 538   }
 539
 540   void RenderViewWindow(SVTK_ViewWindow* theWindow)
 541   {
 542     try {
 543       OCC_CATCH_SIGNALS;
 544       theWindow->getRenderer()->Render();
 545       theWindow->Repaint();
 546     }
 547     catch (...) {
 548       MESSAGE ( "Exception in SMESHGUI_VTKUtils::RenderViewWindow(SVTK_ViewWindow*)" );
 549       OnVisuException();
 550     }
 551   }
 552
 553   void FitAll(){
 554     if(SVTK_ViewWindow* wnd = GetCurrentVtkView() ){
 555       try {
 556         OCC_CATCH_SIGNALS;
 557         wnd->onFitAll();
 558         wnd->Repaint();
 559       }
 560       catch (...) {
 561         MESSAGE ( "Exception in SMESHGUI_VTKUtils::FitAll()" );
 562         OnVisuException();
 563       }
 564     }
 565   }
 566
 567
 568   SMESH_Actor* FindActorByEntry(SUIT_ViewWindow *theWindow,
 569                                 const char* theEntry)
 570   {
 571     if(SVTK_ViewWindow* aViewWindow = GetVtkViewWindow(theWindow)){
 572       vtkRenderer *aRenderer = aViewWindow->getRenderer();
 573       VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
 574       vtkActorCollection *aCollection = aCopy.GetActors();
 575       aCollection->InitTraversal();
 576       while(vtkActor *anAct = aCollection->GetNextActor()){
 577         if(SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>(anAct)){
 578           if(anActor->hasIO()){
 579             Handle(SALOME_InteractiveObject) anIO = anActor->getIO();
 580             if(anIO->hasEntry() && strcmp(anIO->getEntry(),theEntry) == 0){
 581               return anActor;
 582             }
 583           }
 584         }
 585       }
 586     }
 587     return NULL;
 588   }
 589
 590
 591   SMESH_Actor* FindActorByEntry(const char* theEntry){
 592     return FindActorByEntry(GetActiveWindow(),theEntry);
 593   }
 594
 595
 596   SMESH_Actor* FindActorByObject(CORBA::Object_ptr theObject){
 597     SalomeApp_Application* app = dynamic_cast<SalomeApp_Application*>( SUIT_Session::session()->activeApplication() );
 598     if( !app )
 599       return NULL;
 600
 601     if(!CORBA::is_nil(theObject)){
 602       _PTR(Study) aStudy = getStudy();
 603       CORBA::String_var anIOR = app->orb()->object_to_string( theObject );
 604       _PTR(SObject) aSObject = aStudy->FindObjectIOR(anIOR.in());
 605       if(aSObject){
 606         CORBA::String_var anEntry = aSObject->GetID().c_str();
 607         return FindActorByEntry(anEntry.in());
 608       }
 609     }
 610     return NULL;
 611   }
 612
 613
 614   SMESH_Actor* CreateActor(const char* theEntry,
 615                            int theIsClear)
 616   {
 617     SMESH_Actor *anActor = NULL;
 618     if(TVisualObjPtr aVisualObj = GetVisualObj(theEntry)){
 619       _PTR(SObject) aSObj = getStudy()->FindObjectID(theEntry);
 620       if(aSObj){
 621         _PTR(GenericAttribute) anAttr;
 622         if(aSObj->FindAttribute(anAttr,"AttributeName")){
 623           _PTR(AttributeName) aName = anAttr;
 624           std::string aNameVal = aName->Value();
 625           anActor = SMESH_Actor::New(aVisualObj,theEntry,aNameVal.c_str(),theIsClear);
 626         }
 627
 628         SMESH::SMESH_GroupBase_var aGroup = SMESH::SMESH_GroupBase::_narrow( SMESH::SObjectToObject( aSObj ));
 629         if(!CORBA::is_nil(aGroup) && anActor)
 630         {
 631           QColor c;
 632           int deltaF, deltaV;
 633           SMESH::GetColor( "SMESH", "fill_color", c, deltaF, "0,170,255|-100"  );
 634           SMESH::GetColor( "SMESH", "volume_color", c, deltaV, "255,0,170|-100"  );
 635           c = SMESH::GetColor( "SMESH", "default_grp_color", c );
 636           SALOMEDS::Color aColor = aGroup->GetColor();
 637           if( !( aColor.R > 0 || aColor.G > 0 || aColor.B > 0 ))
 638           {
 639             aColor.R = c.redF();
 640             aColor.G = c.greenF();
 641             aColor.B = c.blueF();
 642             aGroup->SetColor( aColor );
 643           }
 644           if( aGroup->GetType() == SMESH::NODE )
 645             anActor->SetNodeColor( aColor.R, aColor.G, aColor.B );
 646           else if( aGroup->GetType() == SMESH::EDGE )
 647             anActor->SetEdgeColor( aColor.R, aColor.G, aColor.B );
 648           else if( aGroup->GetType() == SMESH::ELEM0D )
 649             anActor->Set0DColor( aColor.R, aColor.G, aColor.B );
 650           else if( aGroup->GetType() == SMESH::BALL )
 651             anActor->SetBallColor( aColor.R, aColor.G, aColor.B );
 652           else if( aGroup->GetType() == SMESH::VOLUME )
 653             anActor->SetVolumeColor( aColor.R, aColor.G, aColor.B, deltaV );
 654           else
 655             anActor->SetSufaceColor( aColor.R, aColor.G, aColor.B, deltaF );
 656         }
 657       }
 658     }
 659     //MESSAGE("CreateActor " << anActor);
 660     if( anActor )
 661       if( SMESHGUI* aSMESHGUI = SMESHGUI::GetSMESHGUI() )
 662         aSMESHGUI->addActorAsObserver( anActor );
 663     return anActor;
 664   }
 665
 666
 667   void DisplayActor( SUIT_ViewWindow *theWnd, SMESH_Actor* theActor){
 668     if(SVTK_ViewWindow* vtkWnd = GetVtkViewWindow(theWnd)){
 669       try {
 670         OCC_CATCH_SIGNALS;
 671         //MESSAGE("DisplayActor " << theActor);
 672         vtkWnd->AddActor(theActor);
 673         vtkWnd->Repaint();
 674       }
 675       catch (...) {
 676         MESSAGE ( "Exception in SMESHGUI_VTKUtils::DisplayActor()" );
 677         OnVisuException();
 678       }
 679     }
 680   }
 681
 682
 683   void RemoveActor( SUIT_ViewWindow *theWnd, SMESH_Actor* theActor)
 684   {
 685     if ( SVTK_ViewWindow* vtkWnd = GetVtkViewWindow(theWnd)) {
 686       //MESSAGE("RemoveActor " << theActor);
 687       vtkWnd->RemoveActor(theActor);
 688       if(theActor->hasIO()){
 689         Handle(SALOME_InteractiveObject) anIO = theActor->getIO();
 690         if(anIO->hasEntry()){
 691           std::string anEntry = anIO->getEntry();
 692           VISUAL_OBJ_CONT.erase(anEntry);
 693         }
 694       }
 695       theActor->Delete();
 696       vtkWnd->Repaint();
 697     }
 698   }
 699
 700   //================================================================================
 701   /*!
 702    * \brief Return true if there are no SMESH actors in a view
 703    */
 704   //================================================================================
 705
 706   bool noSmeshActors(SUIT_ViewWindow *theWnd)
 707   {
 708     if(SVTK_ViewWindow* aViewWindow = GetVtkViewWindow(theWnd)) {
 709       vtkRenderer *aRenderer = aViewWindow->getRenderer();
 710       VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
 711       vtkActorCollection *aCollection = aCopy.GetActors();
 712       aCollection->InitTraversal();
 713       while(vtkActor *anAct = aCollection->GetNextActor())
 714         if(dynamic_cast<SMESH_Actor*>(anAct))
 715           return false;
 716     }
 717     return true;
 718   }
 719
 720   bool UpdateView(SUIT_ViewWindow *theWnd, EDisplaing theAction, const char* theEntry)
 721   {
 722     //MESSAGE("UpdateView");
 723     bool OK = false;
 724     SVTK_ViewWindow* aViewWnd = GetVtkViewWindow(theWnd);
 725     if (!aViewWnd)
 726       return OK;
 727
 728     SVTK_ViewWindow* vtkWnd = GetVtkViewWindow(theWnd);
 729     if (!vtkWnd)
 730       return OK;
 731
 732     SalomeApp_Study* aStudy = dynamic_cast<SalomeApp_Study*>( vtkWnd->getViewManager()->study() );
 733
 734     if (!aStudy)
 735       return OK;
 736
 737     SUIT_ResourceMgr* resMgr;
 738     {
 739       OK = true;
 740       vtkRenderer *aRenderer = aViewWnd->getRenderer();
 741       VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
 742       vtkActorCollection *aCollection = aCopy.GetActors();
 743       aCollection->InitTraversal();
 744
 745       switch (theAction) {
 746       case eDisplayAll: {
 747         while (vtkActor *anAct = aCollection->GetNextActor()) {
 748           if (SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>(anAct)) {
 749             //MESSAGE("--- display " << anActor);
 750             anActor->SetVisibility(true);
 751
 752             if(anActor->hasIO()){
 753               Handle(SALOME_InteractiveObject) anIO = anActor->getIO();
 754               if(anIO->hasEntry()){
 755                 aStudy->setVisibilityState(anIO->getEntry(), Qtx::ShownState);
 756               }
 757             }
 758           }
 759         }
 760         break;
 761       }
 762       case eDisplayOnly:
 763       case eEraseAll: {
 764         //MESSAGE("---case eDisplayOnly");
 765         while (vtkActor *anAct = aCollection->GetNextActor()) {
 766           if (SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>(anAct)) {
 767             //MESSAGE("--- erase " << anActor);
 768             anActor->SetVisibility(false);
 769           }
 770         }
 771         aStudy->setVisibilityStateForAll(Qtx::HiddenState);
 772       }
 773       default: {
 774         if (SMESH_Actor *anActor = FindActorByEntry(theWnd,theEntry)) {
 775           switch (theAction) {
 776             case eDisplay:
 777             case eDisplayOnly:
 778               //MESSAGE("--- display " << anActor);
 779               anActor->Update();
 780               anActor->SetVisibility(true);
 781               if (theAction == eDisplayOnly) aRenderer->ResetCameraClippingRange();
 782               aStudy->setVisibilityState(theEntry, Qtx::ShownState);
 783               if (( theAction == eDisplayOnly ) &&
 784                   ( resMgr = SMESHGUI::resourceMgr() ) &&
 785                   ( resMgr->booleanValue( "SMESH", "fitall_on_displayonly", false )))
 786                 FitAll(); // PAL23615
 787               break;
 788             case eErase:
 789               //MESSAGE("--- erase " << anActor);
 790               anActor->SetVisibility(false);
 791               aStudy->setVisibilityState(theEntry, Qtx::HiddenState);
 792               break;
 793             default:;
 794           }
 795         } else {
 796           switch (theAction) {
 797           case eDisplay:
 798           case eDisplayOnly:
 799             {
 800               //MESSAGE("---");
 801               SalomeApp_Study* aStudy = dynamic_cast<SalomeApp_Study*>(theWnd->getViewManager()->study());
 802               TVisualObjPtr aVisualObj;
 803               if ( (aVisualObj = GetVisualObj(theEntry)) && aVisualObj->IsValid())
 804               {
 805                 if ((anActor = CreateActor(theEntry,true))) {
 806                   bool needFitAll = noSmeshActors(theWnd); // fit for the first object only
 807                   DisplayActor(theWnd,anActor);
 808                   anActor->SetVisibility(true);
 809                   aStudy->setVisibilityState(theEntry, Qtx::ShownState);
 810                   // FitAll(); - PAL16770(Display of a group performs an automatic fit all)
 811                   if (( !needFitAll ) &&
 812                       ( theAction == eDisplayOnly ) &&
 813                       ( resMgr = SMESHGUI::resourceMgr() ))
 814                   {
 815                     needFitAll = resMgr->booleanValue( "SMESH", "fitall_on_displayonly", false );
 816                   }
 817                   if ( needFitAll )
 818                     FitAll();
 819                 }
 820                 else {
 821                   OK = false;
 822                 }
 823               }
 824               break;
 825             }
 826           default:;
 827           }
 828         }
 829       }
 830       }
 831     }
 832     return OK;
 833   }
 834
 835
 836   bool UpdateView(EDisplaing theAction, const char* theEntry) {
 837     //MESSAGE("UpdateView");
 838     SalomeApp_Study* aStudy = dynamic_cast< SalomeApp_Study* >( GetActiveStudy() );
 839     SalomeApp_Application* app = dynamic_cast< SalomeApp_Application* >( aStudy->application() );
 840     if ( SUIT_ViewManager* vm = app->activeViewManager() )
 841     {
 842       SUIT_ViewWindow *aWnd = vm->getActiveView();
 843       return UpdateView(aWnd,theAction,theEntry);
 844     }
 845     return false;
 846   }
 847
 848   void UpdateView( bool withChildrenOfSelected )
 849   {
 850     if ( SVTK_ViewWindow* aWnd = SMESH::GetCurrentVtkView()) {
 851       LightApp_SelectionMgr* mgr = SMESHGUI::selectionMgr();
 852       SALOME_ListIO selected; mgr->selectedObjects( selected );
 853
 854       if ( selected.Extent() == 0 ) {
 855         vtkRenderer* aRenderer = aWnd->getRenderer();
 856         VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
 857         vtkActorCollection *aCollection = aCopy.GetActors();
 858         aCollection->InitTraversal();
 859         while(vtkActor *anAct = aCollection->GetNextActor()){
 860           if(SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>(anAct)){
 861             if(anActor->hasIO())
 862               if (!Update(anActor->getIO(),anActor->GetVisibility()))
 863                 break; // avoid multiple warnings if visu failed
 864           }
 865         }
 866       }
 867       else
 868       {
 869         SALOME_ListIteratorOfListIO anIter( selected );
 870         for( ; anIter.More(); anIter.Next())
 871         {
 872           Handle(SALOME_InteractiveObject) anIO = anIter.Value();
 873           if ( !Update( anIO, true ))
 874             break; // avoid multiple warnings if visu failed
 875
 876           if ( withChildrenOfSelected ) // update all visible children
 877           {
 878             QString aFatherID = anIO->getEntry();
 879             vtkRenderer* aRenderer = aWnd->getRenderer();
 880             VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
 881             vtkActorCollection *aCollection = aCopy.GetActors();
 882             aCollection->InitTraversal();
 883             while ( vtkActor *anAct = aCollection->GetNextActor() ) {
 884               if ( SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>( anAct )) {
 885                 if ( anActor->hasIO() && anActor->GetVisibility() )
 886                 {
 887                   QString aChildID = anActor->getIO()->getEntry();
 888                   if ( aChildID.size() > aFatherID.size() &&
 889                        aChildID.startsWith( aFatherID ))
 890                     if ( ! Update( anActor->getIO(), true ))
 891                       break;
 892                 }
 893               }
 894             }
 895           }
 896         }
 897       }
 898       RepaintCurrentView();
 899     }
 900   }
 901
 902
 903   bool Update(const Handle(SALOME_InteractiveObject)& theIO, bool theDisplay)
 904   {
 905     //MESSAGE("Update");
 906     if ( TVisualObjPtr aVisualObj = SMESH::GetVisualObj(theIO->getEntry())) {
 907       if ( theDisplay )
 908         UpdateView(SMESH::eDisplay,theIO->getEntry());
 909       return true;
 910     }
 911     return false;
 912   }
 913
 914   bool UpdateNulData(const Handle(SALOME_InteractiveObject)& theIO, bool theDisplay)
 915   {
 916     //MESSAGE("UpdateNulData");
 917     if ( TVisualObjPtr aVisualObj = SMESH::GetVisualObj(theIO->getEntry(), true)) {
 918       if ( theDisplay )
 919         UpdateView(SMESH::eDisplay,theIO->getEntry());
 920       return true;
 921     }
 922     return false;
 923   }
 924
 925   void UpdateSelectionProp( SMESHGUI* theModule )
 926   {
 927     if( !theModule )
 928       return;
 929
 930     SalomeApp_Application* app = dynamic_cast< SalomeApp_Application* >( theModule->application() );
 931     if( !app )
 932     {
 933       MESSAGE( "UpdateSelectionProp: Application is null" );
 934       return;
 935     }
 936
 937     SUIT_ViewManager* vm = app->activeViewManager();
 938     if( !vm )
 939     {
 940       MESSAGE( "UpdateSelectionProp: View manager is null" );
 941       return;
 942     }
 943
 944     QVector<SUIT_ViewWindow*> views = vm->getViews();
 945
 946     SUIT_ResourceMgr* mgr = SMESH::GetResourceMgr( theModule );
 947     if( !mgr )
 948     {
 949       MESSAGE( "UpdateSelectionProp: Resource manager is null" );
 950       return;
 951     }
 952
 953     SMESH_ActorProps::props()->reset();
 954
 955     QColor
 956       //aHiColor = mgr->colorValue( "SMESH", "selection_object_color", Qt::white ),
 957       aSelColor = mgr->colorValue( "SMESH", "selection_element_color", Qt::yellow ),
 958       aPreColor = mgr->colorValue( "SMESH", "highlight_color", Qt::cyan );
 959
 960     int aElem0DSize = mgr->integerValue("SMESH", "elem0d_size", 5);
 961     // int aBallSize   = mgr->integerValue("SMESH", "ball_elem_size", 5);
 962     int aLineWidth  = mgr->integerValue("SMESH", "element_width", 1);
 963     int maxSize = aElem0DSize;
 964     if (aElem0DSize > maxSize) maxSize = aElem0DSize;
 965     if (aLineWidth > maxSize) maxSize = aLineWidth;
 966     //  if (aBallSize > maxSize) maxSize = aBallSize;
 967
 968     double
 969       SP1 = mgr->doubleValue( "SMESH", "selection_precision_node", 0.025 ),
 970       SP2 = mgr->doubleValue( "SMESH", "selection_precision_element", 0.001 ),
 971       SP3 = mgr->doubleValue( "SMESH", "selection_precision_object", 0.025 );
 972
 973     for ( int i=0, n=views.count(); i<n; i++ )
 974     {
 975       // update VTK viewer properties
 976       if ( SVTK_ViewWindow* aVtkView = GetVtkViewWindow( views[i] ))
 977       {
 978         // mesh element selection
 979         aVtkView->SetSelectionProp(aSelColor.red()/255.,
 980                                    aSelColor.green()/255.,
 981                                    aSelColor.blue()/255.);
 982         // tolerances
 983         aVtkView->SetSelectionTolerance(SP1, SP2, SP3);
 984
 985         // pre-selection
 986         aVtkView->SetPreselectionProp(aPreColor.red()/255.,
 987                                       aPreColor.green()/255.,
 988                                       aPreColor.blue()/255.);
 989         // update actors
 990         vtkRenderer* aRenderer = aVtkView->getRenderer();
 991         VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
 992         vtkActorCollection *aCollection = aCopy.GetActors();
 993         aCollection->InitTraversal();
 994         while ( vtkActor *anAct = aCollection->GetNextActor() ) {
 995           if ( SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>(anAct) ) {
 996             anActor->UpdateSelectionProps();
 997           }
 998         }
 999       }
1000     }
1001   }
1002
1003
1004   void UpdateFontProp( SMESHGUI* theModule )
1005   {
1006     if ( !theModule ) return;
1007
1008     SalomeApp_Application* app = dynamic_cast< SalomeApp_Application* >( theModule->application() );
1009     if ( !app ) return;
1010
1011     SUIT_ResourceMgr* mgr = SMESH::GetResourceMgr( theModule );
1012     if ( !mgr ) return;
1013     //
1014     double anRGBNd[3] = {1,1,1};
1015     SMESH::GetColor( "SMESH", "numbering_node_color", anRGBNd[0], anRGBNd[1], anRGBNd[2], QColor( 255, 255, 255 ) );
1016     int aSizeNd = 10;
1017     SMESH::LabelFont aFamilyNd = SMESH::FntTimes;
1018     bool aBoldNd    = true;
1019     bool anItalicNd = false;
1020     bool aShadowNd  = false;
1021
1022     if ( mgr->hasValue( "SMESH", "numbering_node_font" ) ) {
1023       QFont f = mgr->fontValue( "SMESH", "numbering_node_font" );
1024       if ( f.family()      == "Arial" )   aFamilyNd = SMESH::FntArial;
1025       else if ( f.family() == "Courier" ) aFamilyNd = SMESH::FntCourier;
1026       else if ( f.family() == "Times" )   aFamilyNd = SMESH::FntTimes;
1027       aBoldNd    = f.bold();
1028       anItalicNd = f.italic();
1029       aShadowNd  = f.overline();
1030       aSizeNd    = f.pointSize();
1031     }
1032     //
1033     double anRGBEl[3] = {0,1,0};
1034     SMESH::GetColor( "SMESH", "numbering_elem_color", anRGBEl[0], anRGBEl[1], anRGBEl[2], QColor( 0, 255, 0 ) );
1035     int aSizeEl = 12;
1036     SMESH::LabelFont aFamilyEl = SMESH::FntTimes;
1037     bool aBoldEl    = true;
1038     bool anItalicEl = false;
1039     bool aShadowEl  = false;
1040
1041     if ( mgr->hasValue( "SMESH", "numbering_elem_font" ) ) {
1042       QFont f = mgr->fontValue( "SMESH", "numbering_elem_font" );
1043
1044       if ( f.family()      == "Arial" )   aFamilyEl = SMESH::FntArial;
1045       else if ( f.family() == "Courier" ) aFamilyEl = SMESH::FntCourier;
1046       else if ( f.family() == "Times" )   aFamilyEl = SMESH::FntTimes;
1047       aBoldEl    = f.bold();
1048       anItalicEl = f.italic();
1049       aShadowEl  = f.overline();
1050       aSizeEl    = f.pointSize();
1051     }
1052     //
1053     ViewManagerList vmList;
1054     app->viewManagers( SVTK_Viewer::Type(), vmList );
1055     foreach ( SUIT_ViewManager* vm, vmList ) {
1056       QVector<SUIT_ViewWindow*> views = vm->getViews();
1057       foreach ( SUIT_ViewWindow* vw, views ) {
1058         // update VTK viewer properties
1059         if ( SVTK_ViewWindow* aVtkView = GetVtkViewWindow( vw ) ) {
1060           // update actors
1061           vtkRenderer* aRenderer = aVtkView->getRenderer();
1062           VTK::ActorCollectionCopy aCopy( aRenderer->GetActors() );
1063           vtkActorCollection* aCollection = aCopy.GetActors();
1064           aCollection->InitTraversal();
1065           while ( vtkActor* anAct = aCollection->GetNextActor() ) {
1066             if ( SMESH_NodeLabelActor* anActor = dynamic_cast< SMESH_NodeLabelActor* >( anAct ) ) {
1067               anActor->SetFontProperties( aFamilyNd, aSizeNd, aBoldNd, anItalicNd, aShadowNd, anRGBNd[0], anRGBNd[1], anRGBNd[2] );
1068             }
1069             else if ( SMESH_CellLabelActor* anActor = dynamic_cast< SMESH_CellLabelActor* >( anAct ) ) {
1070               anActor->SetFontProperties( aFamilyEl, aSizeEl, aBoldEl, anItalicEl, aShadowEl, anRGBEl[0], anRGBEl[1], anRGBEl[2] );
1071             }
1072           }
1073           aVtkView->Repaint( false );
1074         }
1075       }
1076     }
1077   }
1078
1079   //----------------------------------------------------------------------------
1080   SVTK_Selector*
1081   GetSelector(SUIT_ViewWindow *theWindow)
1082   {
1083     if(SVTK_ViewWindow* aWnd = GetVtkViewWindow(theWindow))
1084       return aWnd->GetSelector();
1085
1086     return NULL;
1087   }
1088
1089   void SetFilter(const Handle(VTKViewer_Filter)& theFilter,
1090                  SVTK_Selector* theSelector)
1091   {
1092     if (theSelector)
1093       theSelector->SetFilter(theFilter);
1094   }
1095
1096   Handle(VTKViewer_Filter) GetFilter(int theId, SVTK_Selector* theSelector)
1097   {
1098     return theSelector->GetFilter(theId);
1099   }
1100
1101   bool IsFilterPresent(int theId, SVTK_Selector* theSelector)
1102   {
1103     return theSelector->IsFilterPresent(theId);
1104   }
1105
1106   void RemoveFilter(int theId, SVTK_Selector* theSelector)
1107   {
1108     theSelector->RemoveFilter(theId);
1109   }
1110
1111   void RemoveFilters(SVTK_Selector* theSelector)
1112   {
1113     for ( int id = SMESH::NodeFilter; theSelector && id < SMESH::LastFilter; id++ )
1114       theSelector->RemoveFilter( id );
1115   }
1116
1117   bool IsValid(SALOME_Actor* theActor, int theCellId,
1118                SVTK_Selector* theSelector)
1119   {
1120     return theSelector->IsValid(theActor,theCellId);
1121   }
1122
1123
1124   //----------------------------------------------------------------------------
1125   void SetPointRepresentation(bool theIsVisible)
1126   {
1127     if ( SVTK_ViewWindow* aViewWindow = GetCurrentVtkView() ) {
1128       vtkRenderer *aRenderer = aViewWindow->getRenderer();
1129       VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
1130       vtkActorCollection *aCollection = aCopy.GetActors();
1131       aCollection->InitTraversal();
1132       while(vtkActor *anAct = aCollection->GetNextActor()){
1133         if(SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>(anAct)){
1134           if(anActor->GetVisibility()){
1135             anActor->SetPointRepresentation(theIsVisible);
1136           }
1137         }
1138       }
1139       RepaintCurrentView();
1140     }
1141   }
1142
1143
1144   void SetPickable(SMESH_Actor* theActor)
1145   {
1146     if ( SVTK_ViewWindow* aWnd = GetCurrentVtkView() ) {
1147       int anIsAllPickable = (theActor == NULL);
1148       vtkRenderer *aRenderer = aWnd->getRenderer();
1149       VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
1150       vtkActorCollection *aCollection = aCopy.GetActors();
1151       aCollection->InitTraversal();
1152       while(vtkActor *anAct = aCollection->GetNextActor()){
1153         if(SALOME_Actor *anActor = dynamic_cast<SALOME_Actor*>(anAct)){
1154           if(anActor->GetVisibility()){
1155             anActor->SetPickable(anIsAllPickable);
1156           }
1157         }
1158       }
1159       if(theActor)
1160         theActor->SetPickable(!anIsAllPickable);
1161       RepaintCurrentView();
1162     }
1163   }
1164
1165
1166   //----------------------------------------------------------------------------
1167   int GetNameOfSelectedNodes(SVTK_Selector*                          theSelector,
1168                              const Handle(SALOME_InteractiveObject)& theIO,
1169                              QString&                                theName)
1170   {
1171     theName = "";
1172     TColStd_IndexedMapOfInteger aMapIndex;
1173     theSelector->GetIndex(theIO,aMapIndex);
1174
1175     for(int i = 1; i <= aMapIndex.Extent(); i++)
1176       theName += QString(" %1").arg(aMapIndex(i));
1177
1178     return aMapIndex.Extent();
1179   }
1180
1181   int GetNameOfSelectedElements(SVTK_Selector* theSelector,
1182                                 const Handle(SALOME_InteractiveObject)& theIO,
1183                                 QString& theName)
1184   {
1185     theName = "";
1186     TColStd_IndexedMapOfInteger aMapIndex;
1187     theSelector->GetIndex(theIO,aMapIndex);
1188
1189     typedef std::set<int> TIdContainer;
1190     TIdContainer anIdContainer;
1191     for( int i = 1; i <= aMapIndex.Extent(); i++)
1192       anIdContainer.insert(aMapIndex(i));
1193
1194     TIdContainer::const_iterator anIter = anIdContainer.begin();
1195     for( ; anIter != anIdContainer.end(); anIter++)
1196       theName += QString(" %1").arg(*anIter);
1197
1198     return aMapIndex.Extent();
1199   }
1200
1201
1202   int GetEdgeNodes(SVTK_Selector* theSelector,
1203                    const TVisualObjPtr& theVisualObject,
1204                    int& theId1,
1205                    int& theId2)
1206   {
1207     const SALOME_ListIO& selected = theSelector->StoredIObjects();
1208
1209     if ( selected.Extent() != 1 )
1210       return -1;
1211
1212     Handle(SALOME_InteractiveObject) anIO = selected.First();
1213     if ( anIO.IsNull() || !anIO->hasEntry() )
1214       return -1;
1215
1216     TColStd_IndexedMapOfInteger aMapIndex;
1217     theSelector->GetIndex( anIO, aMapIndex );
1218     if ( aMapIndex.Extent() != 2 )
1219       return -1;
1220
1221     int anObjId = -1, anEdgeNum = -1;
1222     for ( int i = 1; i <= aMapIndex.Extent(); i++ ) {
1223       int aVal = aMapIndex( i );
1224       if ( aVal > 0 )
1225         anObjId = aVal;
1226       else
1227         anEdgeNum = abs( aVal ) - 1;
1228     }
1229
1230     if ( anObjId == -1 || anEdgeNum == -1 )
1231       return -1;
1232
1233     return theVisualObject->GetEdgeNodes( anObjId, anEdgeNum, theId1, theId2 ) ? 1 : -1;
1234   }
1235
1236   //----------------------------------------------------------------------------
1237   int GetNameOfSelectedNodes(LightApp_SelectionMgr *theMgr,
1238                              const Handle(SALOME_InteractiveObject)& theIO,
1239                              QString& theName)
1240   {
1241     theName = "";
1242     if(theIO->hasEntry()){
1243       if(FindActorByEntry(theIO->getEntry())){
1244         TColStd_IndexedMapOfInteger aMapIndex;
1245         theMgr->GetIndexes(theIO,aMapIndex);
1246         for(int i = 1; i <= aMapIndex.Extent(); i++){
1247           theName += QString(" %1").arg(aMapIndex(i));
1248         }
1249         return aMapIndex.Extent();
1250       }
1251     }
1252     return -1;
1253   }
1254
1255   int GetNameOfSelectedNodes(LightApp_SelectionMgr *theMgr, QString& theName)
1256   {
1257     theName = "";
1258     SALOME_ListIO selected; theMgr->selectedObjects( selected );
1259     if(selected.Extent() == 1){
1260       Handle(SALOME_InteractiveObject) anIO = selected.First();
1261       return GetNameOfSelectedNodes(theMgr,anIO,theName);
1262     }
1263     return -1;
1264   }
1265
1266
1267   int GetNameOfSelectedElements(LightApp_SelectionMgr *                 theMgr,
1268                                 const Handle(SALOME_InteractiveObject)& theIO,
1269                                 QString&                                theName)
1270   {
1271     theName = "";
1272     if(theIO->hasEntry()){
1273       if(FindActorByEntry(theIO->getEntry())){
1274         TColStd_IndexedMapOfInteger aMapIndex;
1275         theMgr->GetIndexes(theIO,aMapIndex);
1276         typedef std::set<int> TIdContainer;
1277         TIdContainer anIdContainer;
1278         for( int i = 1; i <= aMapIndex.Extent(); i++)
1279           anIdContainer.insert(aMapIndex(i));
1280         TIdContainer::const_iterator anIter = anIdContainer.begin();
1281         for( ; anIter != anIdContainer.end(); anIter++){
1282           theName += QString(" %1").arg(*anIter);
1283         }
1284         return aMapIndex.Extent();
1285       }
1286     }
1287     return -1;
1288   }
1289
1290
1291   int GetNameOfSelectedElements(LightApp_SelectionMgr *theMgr, QString& theName)
1292   {
1293     theName = "";
1294     SALOME_ListIO selected; theMgr->selectedObjects( selected );
1295
1296     if( selected.Extent() == 1){
1297       Handle(SALOME_InteractiveObject) anIO = selected.First();
1298       return GetNameOfSelectedElements(theMgr,anIO,theName);
1299     }
1300     return -1;
1301   }
1302
1303   int GetSelected(LightApp_SelectionMgr*       theMgr,
1304                   TColStd_IndexedMapOfInteger& theMap,
1305                   const bool                   theIsElement)
1306   {
1307     theMap.Clear();
1308     SALOME_ListIO selected; theMgr->selectedObjects( selected );
1309
1310     if ( selected.Extent() == 1 )
1311     {
1312       Handle(SALOME_InteractiveObject) anIO = selected.First();
1313       if ( anIO->hasEntry() ) {
1314         theMgr->GetIndexes( anIO, theMap );
1315       }
1316     }
1317     return theMap.Extent();
1318   }
1319
1320
1321   int GetEdgeNodes( LightApp_SelectionMgr* theMgr, int& theId1, int& theId2 )
1322   {
1323     SALOME_ListIO selected; theMgr->selectedObjects( selected );
1324
1325     if ( selected.Extent() != 1 )
1326       return -1;
1327
1328     Handle(SALOME_InteractiveObject) anIO = selected.First();
1329     if ( anIO.IsNull() || !anIO->hasEntry() )
1330       return -1;
1331
1332     SMESH_Actor *anActor = SMESH::FindActorByEntry( anIO->getEntry() );
1333     if ( anActor == 0 )
1334       return -1;
1335
1336     TColStd_IndexedMapOfInteger aMapIndex;
1337     theMgr->GetIndexes( anIO, aMapIndex );
1338     if ( aMapIndex.Extent() != 2 )
1339       return -1;
1340
1341     int anObjId = -1, anEdgeNum = -1;
1342     for ( int i = 1; i <= aMapIndex.Extent(); i++ ) {
1343       int aVal = aMapIndex( i );
1344       if ( aVal > 0 )
1345         anObjId = aVal;
1346       else
1347         anEdgeNum = abs( aVal );
1348     }
1349
1350     if ( anObjId == -1 || anEdgeNum == -1 )
1351       return -1;
1352
1353     return anActor->GetObject()->GetEdgeNodes( anObjId, anEdgeNum, theId1, theId2 ) ? 1 : -1;
1354   }
1355
1356   void SetControlsPrecision( const long theVal )
1357   {
1358     if( SVTK_ViewWindow* aWnd = SMESH::GetCurrentVtkView() )
1359     {
1360       vtkRenderer *aRenderer = aWnd->getRenderer();
1361       VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
1362       vtkActorCollection *aCollection = aCopy.GetActors();
1363       aCollection->InitTraversal();
1364
1365       while ( vtkActor *anAct = aCollection->GetNextActor())
1366       {
1367         if ( SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>( anAct ) )
1368         {
1369           anActor->SetControlsPrecision( theVal );
1370           anActor->SetControlMode( anActor->GetControlMode() );
1371         }
1372       }
1373
1374     }
1375   }
1376
1377   //----------------------------------------------------------------------------
1378   // internal function
1379   void ComputeBoundsParam( double theBounds[6],
1380                            double theDirection[3],
1381                            double theMinPnt[3],
1382                            double& theMaxBoundPrj,
1383                            double& theMinBoundPrj )
1384   {
1385     //Enlarge bounds in order to avoid conflicts of precision
1386     for(int i = 0; i < 6; i += 2){
1387       static double EPS = 1.0E-3;
1388       double aDelta = (theBounds[i+1] - theBounds[i])*EPS;
1389       theBounds[i] -= aDelta;
1390       theBounds[i+1] += aDelta;
1391     }
1392
1393     double aBoundPoints[8][3] = { {theBounds[0],theBounds[2],theBounds[4]},
1394                                   {theBounds[1],theBounds[2],theBounds[4]},
1395                                   {theBounds[0],theBounds[3],theBounds[4]},
1396                                   {theBounds[1],theBounds[3],theBounds[4]},
1397                                   {theBounds[0],theBounds[2],theBounds[5]},
1398                                   {theBounds[1],theBounds[2],theBounds[5]},
1399                                   {theBounds[0],theBounds[3],theBounds[5]},
1400                                   {theBounds[1],theBounds[3],theBounds[5]}};
1401
1402     int aMaxId = 0;
1403     theMaxBoundPrj = vtkMath::Dot(theDirection,aBoundPoints[aMaxId]);
1404     theMinBoundPrj = theMaxBoundPrj;
1405     for(int i = 1; i < 8; i++){
1406       double aTmp = vtkMath::Dot(theDirection,aBoundPoints[i]);
1407       if(theMaxBoundPrj < aTmp){
1408         theMaxBoundPrj = aTmp;
1409         aMaxId = i;
1410       }
1411       if(theMinBoundPrj > aTmp){
1412         theMinBoundPrj = aTmp;
1413       }
1414     }
1415     double *aMinPnt = aBoundPoints[aMaxId];
1416     theMinPnt[0] = aMinPnt[0];
1417     theMinPnt[1] = aMinPnt[1];
1418     theMinPnt[2] = aMinPnt[2];
1419   }
1420
1421   // internal function
1422   void DistanceToPosition( double theBounds[6],
1423                            double theDirection[3],
1424                            double theDist,
1425                            double thePos[3] )
1426   {
1427     double aMaxBoundPrj, aMinBoundPrj, aMinPnt[3];
1428     ComputeBoundsParam(theBounds,theDirection,aMinPnt,aMaxBoundPrj,aMinBoundPrj);
1429     double aLength = (aMaxBoundPrj-aMinBoundPrj)*theDist;
1430     thePos[0] = aMinPnt[0]-theDirection[0]*aLength;
1431     thePos[1] = aMinPnt[1]-theDirection[1]*aLength;
1432     thePos[2] = aMinPnt[2]-theDirection[2]*aLength;
1433   }
1434
1435   // internal function (currently unused, left just in case)
1436   void PositionToDistance( double theBounds[6],
1437                            double theDirection[3],
1438                            double thePos[3],
1439                            double& theDist )
1440   {
1441     double aMaxBoundPrj, aMinBoundPrj, aMinPnt[3];
1442     ComputeBoundsParam(theBounds,theDirection,aMinPnt,aMaxBoundPrj,aMinBoundPrj);
1443     double aPrj = vtkMath::Dot(theDirection,thePos);
1444     theDist = (aPrj-aMinBoundPrj)/(aMaxBoundPrj-aMinBoundPrj);
1445   }
1446
1447   bool ComputeClippingPlaneParameters( std::list<vtkActor*> theActorList,
1448                                        double theNormal[3],
1449                                        double theDist,
1450                                        double theBounds[6],
1451                                        double theOrigin[3] )
1452   {
1453     bool anIsOk = false;
1454     anIsOk = ComputeBounds( theActorList, theBounds );
1455
1456
1457     if( !anIsOk )
1458       return false;
1459
1460     DistanceToPosition( theBounds, theNormal, theDist, theOrigin );
1461     return true;
1462   }
1463
1464   bool ComputeBounds( std::list<vtkActor*> theActorList,
1465                       double theBounds[6])
1466   {
1467     bool anIsOk = false;
1468     theBounds[0] = theBounds[2] = theBounds[4] = VTK_DOUBLE_MAX;
1469     theBounds[1] = theBounds[3] = theBounds[5] = -VTK_DOUBLE_MAX;
1470     std::list<vtkActor*>::iterator anIter = theActorList.begin();
1471     for( ; anIter != theActorList.end(); anIter++ ) {
1472       if( vtkActor* aVTKActor = *anIter ) {
1473         if( SMESH_Actor* anActor = SMESH_Actor::SafeDownCast( aVTKActor ) ) {
1474           double aBounds[6];
1475           anActor->GetUnstructuredGrid()->GetBounds( aBounds );
1476           theBounds[0] = std::min( theBounds[0], aBounds[0] );
1477           theBounds[1] = std::max( theBounds[1], aBounds[1] );
1478           theBounds[2] = std::min( theBounds[2], aBounds[2] );
1479           theBounds[3] = std::max( theBounds[3], aBounds[3] );
1480           theBounds[4] = std::min( theBounds[4], aBounds[4] );
1481           theBounds[5] = std::max( theBounds[5], aBounds[5] );
1482           anIsOk = true;
1483         }
1484       }
1485     }
1486     return anIsOk;
1487   }
1488
1489 #ifndef DISABLE_PLOT2DVIEWER
1490   //================================================================================
1491   /*!
1492    * \brief Find all SMESH_Actor's in the View Window.
1493    * If actor contains Plot2d_Histogram object remove it from each Plot2d Viewer.
1494    */
1495   //================================================================================
1496
1497   void ClearPlot2Viewers( SUIT_ViewWindow* theWindow )
1498   {
1499     if ( SVTK_ViewWindow* aViewWindow = GetVtkViewWindow(theWindow) ) {
1500       vtkRenderer *aRenderer = aViewWindow->getRenderer();
1501       VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
1502       vtkActorCollection *aCollection = aCopy.GetActors();
1503       aCollection->InitTraversal();
1504       while(vtkActor *anAct = aCollection->GetNextActor()){
1505         if(SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>(anAct)){
1506           if(anActor->hasIO() && anActor->GetPlot2Histogram() ){
1507             ProcessIn2DViewers(anActor,RemoveFrom2dViewer);
1508           }
1509         }
1510       }
1511     }
1512   }
1513
1514 #endif
1515
1516 } // end of namespace SMESH