src/SMESHGUI/SMESHGUI_VTKUtils.cxx

   1 // Copyright (C) 2007-2016  CEA/DEN, EDF R&D, OPEN CASCADE
   2 //
   3 // Copyright (C) 2003-2007  OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
   4 // CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
   5 //
   6 // This library is free software; you can redistribute it and/or
   7 // modify it under the terms of the GNU Lesser General Public
   8 // License as published by the Free Software Foundation; either
   9 // version 2.1 of the License, or (at your option) any later version.
  10 //
  11 // This library is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 // Lesser General Public License for more details.
  15 //
  16 // You should have received a copy of the GNU Lesser General Public
  17 // License along with this library; if not, write to the Free Software
  18 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  19 //
  20 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
  21 //
  22
  23 // SMESH SMESHGUI : GUI for SMESH component
  24 // File   : SMESHGUI_VTKUtils.cxx
  25 // Author : Open CASCADE S.A.S.
  26 // SMESH includes
  27 //
  28 #include "SMESHGUI_VTKUtils.h"
  29
  30 #include "SMESHGUI.h"
  31 #include "SMESHGUI_Filter.h"
  32 #include "SMESHGUI_Utils.h"
  33 #include "SMDS_Mesh.hxx"
  34 #include "SMESH_Actor.h"
  35 #include "SMESH_ActorUtils.h"
  36 #include "SMESH_CellLabelActor.h"
  37 #include "SMESH_ControlsDef.hxx"
  38 #include "SMESH_NodeLabelActor.h"
  39 #include "SMESH_ObjectDef.h"
  40
  41 // SALOME GUI includes
  42 #include <SUIT_Desktop.h>
  43 #include <SUIT_Session.h>
  44 #include <SUIT_MessageBox.h>
  45 #include <SUIT_ViewManager.h>
  46 #include <SUIT_ResourceMgr.h>
  47
  48 #include <SALOME_ListIO.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 <Standard_ErrorHandler.hxx>
  76
  77 namespace SMESH
  78 {
  79   typedef std::map<TKeyOfVisualObj,TVisualObjPtr> TVisualObjCont;
  80   static TVisualObjCont VISUAL_OBJ_CONT;
  81
  82   //=============================================================================
  83   /*!
  84    * \brief Allocate some memory at construction and release it at destruction.
  85    * Is used to be able to continue working after mesh generation or visualization
  86    * break due to lack of memory
  87    */
  88   //=============================================================================
  89
  90   struct MemoryReserve
  91   {
  92     char* myBuf;
  93     MemoryReserve(): myBuf( new char[1024*1024*1] ){} // 1M
  94     void Free() { if (myBuf) { delete [] myBuf; myBuf = 0; }}
  95     ~MemoryReserve() { Free(); }
  96   };
  97   static MemoryReserve* theVISU_MemoryReserve = new MemoryReserve;
  98
  99   //================================================================================
 100   /*!
 101    * \brief Remove VisualObj and its actor from all views
 102    */
 103   //================================================================================
 104
 105   void RemoveVisualObjectWithActors( const char* theEntry, bool fromAllViews )
 106   {
 107     SalomeApp_Application* app = dynamic_cast<SalomeApp_Application*>(SUIT_Session::session()->activeApplication());
 108     if(!app)
 109       return;
 110     SalomeApp_Study* aStudy  = dynamic_cast<SalomeApp_Study*>(app->activeStudy());
 111     if(!aStudy)
 112       return;
 113     ViewManagerList aList;
 114
 115     if(fromAllViews) {
 116       app->viewManagers(SVTK_Viewer::Type() , aList);
 117     } else {
 118       SUIT_ViewManager* aVM = app->getViewManager(SVTK_Viewer::Type(), true);
 119       if(aVM)
 120         aList.append(aVM);
 121     }
 122     bool actorRemoved = false;
 123     ViewManagerList::ConstIterator it = aList.begin();
 124     SUIT_ViewManager* aViewManager = 0;
 125     for( ; it!=aList.end();it++) {
 126       aViewManager = *it;
 127       QVector<SUIT_ViewWindow*> views = aViewManager->getViews();
 128       for ( int iV = 0; iV < views.count(); ++iV ) {
 129         if ( SMESH_Actor* actor = FindActorByEntry( views[iV], theEntry)) {
 130           if(SVTK_ViewWindow* vtkWnd = GetVtkViewWindow(views[iV])) {
 131             vtkWnd->RemoveActor(actor);
 132             actorRemoved = true;
 133           }
 134           actor->Delete();
 135         }
 136       }
 137     }
 138
 139     if (aViewManager ) {
 140       int aStudyId = aViewManager->study()->id();
 141       TVisualObjCont::key_type aKey(aStudyId,theEntry);
 142       TVisualObjCont::iterator anIter = VISUAL_OBJ_CONT.find(aKey);
 143       if(anIter != VISUAL_OBJ_CONT.end()) {
 144         // for unknown reason, object destructor is not called, so clear object manually
 145         anIter->second->GetUnstructuredGrid()->SetCells(0,0,0,0,0);
 146         anIter->second->GetUnstructuredGrid()->SetPoints(0);
 147       }
 148       VISUAL_OBJ_CONT.erase(aKey);
 149     }
 150
 151     if(actorRemoved)
 152       aStudy->setVisibilityState(theEntry, Qtx::HiddenState);
 153   }
 154   //================================================================================
 155   /*!
 156    * \brief Remove all VisualObjs and their actors from all views
 157    */
 158   //================================================================================
 159
 160   void RemoveAllObjectsWithActors()
 161   {
 162     SalomeApp_Application* app = dynamic_cast<SalomeApp_Application*>
 163       ( SUIT_Session::session()->activeApplication() );
 164     if (!app) return;
 165     ViewManagerList viewMgrs = app->viewManagers();
 166     for ( int iM = 0; iM < viewMgrs.count(); ++iM ) {
 167       SUIT_ViewManager* aViewManager = viewMgrs.at( iM );
 168       if ( aViewManager && aViewManager->getType() == SVTK_Viewer::Type()) {
 169         QVector<SUIT_ViewWindow*> views = aViewManager->getViews();
 170         for ( int iV = 0; iV < views.count(); ++iV ) {
 171           if(SVTK_ViewWindow* vtkWnd = GetVtkViewWindow(views[iV])) {
 172             vtkRenderer *aRenderer = vtkWnd->getRenderer();
 173             VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
 174             vtkActorCollection *actors = aCopy.GetActors();
 175             for (int i = 0; i < actors->GetNumberOfItems(); ++i ) {
 176               // size of actors changes inside the loop
 177               if (SMESH_Actor *actor = dynamic_cast<SMESH_Actor*>(actors->GetItemAsObject(i)))
 178               {
 179                 vtkWnd->RemoveActor(actor);
 180                 actor->Delete();
 181               }
 182             }
 183           }
 184         }
 185       }
 186     }
 187     TVisualObjCont::iterator anIter = VISUAL_OBJ_CONT.begin();
 188     for ( ; anIter != VISUAL_OBJ_CONT.end(); ++anIter ) {
 189       // for unknown reason, object destructor is not called, so clear object manually
 190       anIter->second->GetUnstructuredGrid()->SetCells(0,0,0,0,0);
 191       anIter->second->GetUnstructuredGrid()->SetPoints(0);
 192     }
 193     VISUAL_OBJ_CONT.clear();
 194   }
 195
 196   //================================================================================
 197   /*!
 198    * \brief Remove all VisualObjs of a study
 199    */
 200   //================================================================================
 201
 202   void RemoveVisuData(int studyID)
 203   {
 204     SalomeApp_Application* app = dynamic_cast<SalomeApp_Application*>
 205       ( SUIT_Session::session()->activeApplication() );
 206     if (!app) return;
 207     ViewManagerList viewMgrs = app->viewManagers();
 208     for ( int iM = 0; iM < viewMgrs.count(); ++iM ) {
 209       SUIT_ViewManager* aViewManager = viewMgrs.at( iM );
 210       if ( aViewManager && aViewManager->getType() == SVTK_Viewer::Type() &&
 211            aViewManager->study()->id() == studyID ) {
 212         QVector<SUIT_ViewWindow*> views = aViewManager->getViews();
 213         for ( int iV = 0; iV < views.count(); ++iV ) {
 214           if(SVTK_ViewWindow* vtkWnd = GetVtkViewWindow(views[iV])) {
 215             vtkRenderer *aRenderer = vtkWnd->getRenderer();
 216             VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
 217             vtkActorCollection *actors = aCopy.GetActors();
 218             for (int i = 0; i < actors->GetNumberOfItems(); ++i ) {
 219               // size of actors changes inside the loop
 220               if(SMESH_Actor *actor = dynamic_cast<SMESH_Actor*>(actors->GetItemAsObject(i)))
 221               {
 222                 vtkWnd->RemoveActor(actor);
 223                 actor->Delete();
 224               }
 225             }
 226           }
 227         }
 228       }
 229     }
 230     TVisualObjCont::iterator anIter = VISUAL_OBJ_CONT.begin();
 231     for ( ; anIter != VISUAL_OBJ_CONT.end(); ) {
 232       int curId = anIter->first.first;
 233       if ( curId == studyID ) {
 234         // for unknown reason, object destructor is not called, so clear object manually
 235         anIter->second->GetUnstructuredGrid()->SetCells(0,0,0,0,0);
 236         anIter->second->GetUnstructuredGrid()->SetPoints(0);
 237         VISUAL_OBJ_CONT.erase( anIter++ ); // anIter++ returns a copy of self before incrementing
 238       }
 239       else {
 240         anIter++;
 241       }
 242     }
 243   }
 244
 245   //================================================================================
 246   /*!
 247    * \brief Notify the user on problems during visualization
 248    */
 249   //================================================================================
 250
 251   void OnVisuException()
 252   {
 253     try {
 254       OCC_CATCH_SIGNALS;
 255       // PAL16774 (Crash after display of many groups). Salome sometimes crashes just
 256       // after or at showing this message, so we do an additional check of available memory
 257 //       char* buf = new char[100*1024];
 258 //       delete [] buf;
 259       SUIT_MessageBox::warning(SMESHGUI::desktop(), QObject::tr("SMESH_WRN_WARNING"),
 260                                QObject::tr("SMESH_VISU_PROBLEM"));
 261     } catch (...) {
 262       // no more memory at all: last resort
 263       MESSAGE_BEGIN ( "SMESHGUI_VTKUtils::OnVisuException(), exception even at showing a message!!!" <<
 264                       std::endl << "Try to remove all visual data..." );
 265       if (theVISU_MemoryReserve) {
 266         delete theVISU_MemoryReserve;
 267         theVISU_MemoryReserve = 0;
 268       }
 269       RemoveAllObjectsWithActors();
 270       SUIT_MessageBox::warning(SMESHGUI::desktop(), QObject::tr("SMESH_WRN_WARNING"),
 271                                QObject::tr("SMESH_VISU_PROBLEM_CLEAR"));
 272       MESSAGE_END ( "...done" );
 273     }
 274   }
 275   //================================================================================
 276   /*!
 277    * \brief Returns an updated visual object
 278    */
 279   //================================================================================
 280
 281   TVisualObjPtr GetVisualObj(int theStudyId, const char* theEntry, bool nulData){
 282     TVisualObjPtr aVisualObj;
 283     TVisualObjCont::key_type aKey(theStudyId,theEntry);
 284     try{
 285       OCC_CATCH_SIGNALS;
 286       TVisualObjCont::iterator anIter = VISUAL_OBJ_CONT.find(aKey);
 287       if(anIter != VISUAL_OBJ_CONT.end()){
 288         aVisualObj = anIter->second;
 289       }else{
 290         SalomeApp_Application* app =
 291           dynamic_cast<SalomeApp_Application*>( SMESHGUI::activeStudy()->application() );
 292         _PTR(Study) aStudy = SMESHGUI::activeStudy()->studyDS();
 293         _PTR(SObject) aSObj = aStudy->FindObjectID(theEntry);
 294         if(aSObj){
 295           _PTR(GenericAttribute) anAttr;
 296           if(aSObj->FindAttribute(anAttr,"AttributeIOR")){
 297             _PTR(AttributeIOR) anIOR = anAttr;
 298             CORBA::String_var aVal = anIOR->Value().c_str();
 299             CORBA::Object_var anObj = app->orb()->string_to_object( aVal.in() );
 300             if(!CORBA::is_nil(anObj)){
 301               //Try narrow to SMESH_Mesh interface
 302               SMESH::SMESH_Mesh_var aMesh = SMESH::SMESH_Mesh::_narrow(anObj);
 303               if(!aMesh->_is_nil()){
 304                 aVisualObj.reset(new SMESH_MeshObj(aMesh));
 305                 TVisualObjCont::value_type aValue(aKey,aVisualObj);
 306                 VISUAL_OBJ_CONT.insert(aValue);
 307               }
 308               //Try narrow to SMESH_Group interface
 309               SMESH::SMESH_GroupBase_var aGroup = SMESH::SMESH_GroupBase::_narrow(anObj);
 310               if(!aGroup->_is_nil()){
 311                 _PTR(SObject) aFatherSObj = aSObj->GetFather();
 312                 if(!aFatherSObj) return aVisualObj;
 313                 aFatherSObj = aFatherSObj->GetFather();
 314                 if(!aFatherSObj) return aVisualObj;
 315                 CORBA::String_var anEntry = aFatherSObj->GetID().c_str();
 316                 TVisualObjPtr aVisObj = GetVisualObj(theStudyId,anEntry.in());
 317                 if(SMESH_MeshObj* aMeshObj = dynamic_cast<SMESH_MeshObj*>(aVisObj.get())){
 318                   aVisualObj.reset(new SMESH_GroupObj(aGroup,aMeshObj));
 319                   TVisualObjCont::value_type aValue(aKey,aVisualObj);
 320                   VISUAL_OBJ_CONT.insert(aValue);
 321                 }
 322               }
 323               //Try narrow to SMESH_subMesh interface
 324               SMESH::SMESH_subMesh_var aSubMesh = SMESH::SMESH_subMesh::_narrow(anObj);
 325               if(!aSubMesh->_is_nil()){
 326                 _PTR(SObject) aFatherSObj = aSObj->GetFather();
 327                 if(!aFatherSObj) return aVisualObj;
 328                 aFatherSObj = aFatherSObj->GetFather();
 329                 if(!aFatherSObj) return aVisualObj;
 330                 CORBA::String_var anEntry = aFatherSObj->GetID().c_str();
 331                 TVisualObjPtr aVisObj = GetVisualObj(theStudyId,anEntry.in());
 332                 if(SMESH_MeshObj* aMeshObj = dynamic_cast<SMESH_MeshObj*>(aVisObj.get())){
 333                   aVisualObj.reset(new SMESH_subMeshObj(aSubMesh,aMeshObj));
 334                   TVisualObjCont::value_type aValue(aKey,aVisualObj);
 335                   VISUAL_OBJ_CONT.insert(aValue);
 336                 }
 337               }
 338             }
 339           }
 340         }
 341       }
 342     }catch(...){
 343       INFOS("GetMeshObj - There is no SMESH_Mesh object for the SALOMEDS::Strudy and Entry!!!");
 344       return TVisualObjPtr();
 345     }
 346     // Update object
 347     bool objModified = false;
 348     if ( aVisualObj ) {
 349       try {
 350         OCC_CATCH_SIGNALS;
 351         if (nulData)
 352           objModified = aVisualObj->NulData();
 353         else
 354           objModified = aVisualObj->Update();
 355       }
 356       catch (...) {
 357         MESSAGE ( "Exception in SMESHGUI_VTKUtils::GetVisualObj()" );
 358         RemoveVisualObjectWithActors( theEntry ); // remove this object
 359         OnVisuException();
 360         aVisualObj.reset();
 361       }
 362     }
 363
 364     if ( objModified ) {
 365       // PAL16631. Measurements showed that to show aVisualObj in SHADING(default) mode,
 366       // ~5 times more memory is used than it occupies.
 367       // Warn the user if there is less free memory than 30 sizes of a grid
 368       // TODO: estimate memory usage in other modes and take current mode into account
 369       int freeMB = SMDS_Mesh::CheckMemory(true);
 370       int usedMB = aVisualObj->GetUnstructuredGrid()->GetActualMemorySize() / 1024;
 371       //MESSAGE("SMESHGUI_VTKUtils::GetVisualObj(), freeMB=" << freeMB << ", usedMB=" <<usedMB);
 372       if ( freeMB > 0 && usedMB * 5 > freeMB ) {
 373         bool continu = false;
 374         if ( usedMB * 3 > freeMB )
 375           // don't even try to show
 376           SUIT_MessageBox::warning(SMESHGUI::desktop(), QObject::tr("SMESH_WRN_WARNING"),
 377                                    QObject::tr("SMESH_NO_MESH_VISUALIZATION"));
 378         else
 379           // there is a chance to succeed
 380           continu = SUIT_MessageBox::warning
 381             (SMESHGUI::desktop(),
 382              QObject::tr("SMESH_WRN_WARNING"),
 383              QObject::tr("SMESH_CONTINUE_MESH_VISUALIZATION"),
 384              SUIT_MessageBox::Yes | SUIT_MessageBox::No,
 385              SUIT_MessageBox::Yes ) == SUIT_MessageBox::Yes;
 386         if ( !continu ) {
 387           // remove the corresponding actors from all views
 388           RemoveVisualObjectWithActors( theEntry );
 389           aVisualObj.reset();
 390         }
 391       }
 392     }
 393
 394     return aVisualObj;
 395   }
 396
 397
 398   /*! Return active view window, if it instantiates SVTK_ViewWindow class,
 399    *  otherwise find or create corresponding view window, make it active and return it.
 400    *  \note Active VVTK_ViewWindow can be returned, because it inherits SVTK_ViewWindow.
 401    */
 402   SVTK_ViewWindow* GetViewWindow (const SalomeApp_Module* theModule,
 403                                   bool createIfNotFound)
 404   {
 405     SalomeApp_Application* anApp;
 406     if (theModule)
 407       anApp = theModule->getApp();
 408     else
 409       anApp = dynamic_cast<SalomeApp_Application*>
 410         (SUIT_Session::session()->activeApplication());
 411
 412     if (anApp) {
 413       if (SVTK_ViewWindow* aView = dynamic_cast<SVTK_ViewWindow*>(anApp->desktop()->activeWindow()))
 414         return aView;
 415
 416       SUIT_ViewManager* aViewManager =
 417         anApp->getViewManager(SVTK_Viewer::Type(), createIfNotFound);
 418       if (aViewManager) {
 419         if (SUIT_ViewWindow* aViewWindow = aViewManager->getActiveView()) {
 420           if (SVTK_ViewWindow* aView = dynamic_cast<SVTK_ViewWindow*>(aViewWindow)) {
 421             aViewWindow->raise();
 422             aViewWindow->setFocus();
 423             return aView;
 424           }
 425         }
 426       }
 427     }
 428     return NULL;
 429   }
 430
 431   SVTK_ViewWindow* FindVtkViewWindow (SUIT_ViewManager* theMgr,
 432                                       SUIT_ViewWindow * theWindow)
 433   {
 434     if( !theMgr )
 435       return NULL;
 436
 437     QVector<SUIT_ViewWindow*> views = theMgr->getViews();
 438     if( views.contains( theWindow ) )
 439       return GetVtkViewWindow( theWindow );
 440     else
 441       return NULL;
 442   }
 443
 444   SVTK_ViewWindow* GetVtkViewWindow(SUIT_ViewWindow* theWindow){
 445     return dynamic_cast<SVTK_ViewWindow*>(theWindow);
 446   }
 447
 448 /*  SUIT_ViewWindow* GetActiveWindow()
 449   {
 450     SalomeApp_Application* app = dynamic_cast<SalomeApp_Application*>( SUIT_Session::session()->activeApplication() );
 451     if( !app )
 452       return NULL;
 453     SUIT_ViewManager* mgr = app->activeViewManager();
 454     if( mgr )
 455       return mgr->getActiveView();
 456     else
 457       return NULL;
 458   }*/
 459
 460   SVTK_ViewWindow* GetCurrentVtkView(){
 461     return GetVtkViewWindow( GetActiveWindow() );
 462   }
 463
 464
 465   void RepaintCurrentView()
 466   {
 467     if (SVTK_ViewWindow* wnd = GetCurrentVtkView())
 468     {
 469       try {
 470         OCC_CATCH_SIGNALS;
 471         wnd->getRenderer()->Render();
 472         wnd->Repaint(false);
 473       }
 474       catch (...) {
 475         MESSAGE ( "Exception in SMESHGUI_VTKUtils::RepaintCurrentView()" );
 476         OnVisuException();
 477       }
 478     }
 479   }
 480
 481   void RepaintViewWindow(SVTK_ViewWindow* theWindow)
 482   {
 483     try {
 484       OCC_CATCH_SIGNALS;
 485       theWindow->getRenderer()->Render();
 486       theWindow->Repaint();
 487     }
 488     catch (...) {
 489       MESSAGE ( "Exception in SMESHGUI_VTKUtils::RepaintViewWindow(SVTK_ViewWindow*)" );
 490       OnVisuException();
 491     }
 492   }
 493
 494   void RenderViewWindow(SVTK_ViewWindow* theWindow)
 495   {
 496     try {
 497       OCC_CATCH_SIGNALS;
 498       theWindow->getRenderer()->Render();
 499       theWindow->Repaint();
 500     }
 501     catch (...) {
 502       MESSAGE ( "Exception in SMESHGUI_VTKUtils::RenderViewWindow(SVTK_ViewWindow*)" );
 503       OnVisuException();
 504     }
 505   }
 506
 507   void FitAll(){
 508     if(SVTK_ViewWindow* wnd = GetCurrentVtkView() ){
 509       try {
 510         OCC_CATCH_SIGNALS;
 511         wnd->onFitAll();
 512         wnd->Repaint();
 513       }
 514       catch (...) {
 515         MESSAGE ( "Exception in SMESHGUI_VTKUtils::FitAll()" );
 516         OnVisuException();
 517       }
 518     }
 519   }
 520
 521
 522   SMESH_Actor* FindActorByEntry(SUIT_ViewWindow *theWindow,
 523                                 const char* theEntry)
 524   {
 525     if(SVTK_ViewWindow* aViewWindow = GetVtkViewWindow(theWindow)){
 526       vtkRenderer *aRenderer = aViewWindow->getRenderer();
 527       VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
 528       vtkActorCollection *aCollection = aCopy.GetActors();
 529       aCollection->InitTraversal();
 530       while(vtkActor *anAct = aCollection->GetNextActor()){
 531         if(SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>(anAct)){
 532           if(anActor->hasIO()){
 533             Handle(SALOME_InteractiveObject) anIO = anActor->getIO();
 534             if(anIO->hasEntry() && strcmp(anIO->getEntry(),theEntry) == 0){
 535               return anActor;
 536             }
 537           }
 538         }
 539       }
 540     }
 541     return NULL;
 542   }
 543
 544
 545   SMESH_Actor* FindActorByEntry(const char* theEntry){
 546     return FindActorByEntry(GetActiveWindow(),theEntry);
 547   }
 548
 549
 550   SMESH_Actor* FindActorByObject(CORBA::Object_ptr theObject){
 551     SalomeApp_Application* app = dynamic_cast<SalomeApp_Application*>( SUIT_Session::session()->activeApplication() );
 552     if( !app )
 553       return NULL;
 554
 555     if(!CORBA::is_nil(theObject)){
 556       _PTR(Study) aStudy = GetActiveStudyDocument();
 557       CORBA::String_var anIOR = app->orb()->object_to_string( theObject );
 558       _PTR(SObject) aSObject = aStudy->FindObjectIOR(anIOR.in());
 559       if(aSObject){
 560         CORBA::String_var anEntry = aSObject->GetID().c_str();
 561         return FindActorByEntry(anEntry.in());
 562       }
 563     }
 564     return NULL;
 565   }
 566
 567
 568   SMESH_Actor* CreateActor(_PTR(Study) theStudy,
 569                            const char* theEntry,
 570                            int theIsClear)
 571   {
 572     SMESH_Actor *anActor = NULL;
 573     CORBA::Long anId = theStudy->StudyId();
 574     if(TVisualObjPtr aVisualObj = GetVisualObj(anId,theEntry)){
 575       _PTR(SObject) aSObj = theStudy->FindObjectID(theEntry);
 576       if(aSObj){
 577         _PTR(GenericAttribute) anAttr;
 578         if(aSObj->FindAttribute(anAttr,"AttributeName")){
 579           _PTR(AttributeName) aName = anAttr;
 580           std::string aNameVal = aName->Value();
 581           anActor = SMESH_Actor::New(aVisualObj,theEntry,aNameVal.c_str(),theIsClear);
 582         }
 583
 584         SMESH::SMESH_GroupBase_var aGroup = SMESH::SMESH_GroupBase::_narrow( SMESH::SObjectToObject( aSObj ));
 585         if(!CORBA::is_nil(aGroup) && anActor)
 586         {
 587           QColor c;
 588           int deltaF, deltaV;
 589           SMESH::GetColor( "SMESH", "fill_color", c, deltaF, "0,170,255|-100"  );
 590           SMESH::GetColor( "SMESH", "volume_color", c, deltaV, "255,0,170|-100"  );
 591           c = SMESH::GetColor( "SMESH", "default_grp_color", c );
 592           SALOMEDS::Color aColor = aGroup->GetColor();
 593           if( !( aColor.R > 0 || aColor.G > 0 || aColor.B > 0 ))
 594           {
 595             aColor.R = c.redF();
 596             aColor.G = c.greenF();
 597             aColor.B = c.blueF();
 598             aGroup->SetColor( aColor );
 599           }
 600           if( aGroup->GetType() == SMESH::NODE )
 601             anActor->SetNodeColor( aColor.R, aColor.G, aColor.B );
 602           else if( aGroup->GetType() == SMESH::EDGE )
 603             anActor->SetEdgeColor( aColor.R, aColor.G, aColor.B );
 604           else if( aGroup->GetType() == SMESH::ELEM0D )
 605             anActor->Set0DColor( aColor.R, aColor.G, aColor.B );
 606           else if( aGroup->GetType() == SMESH::BALL )
 607             anActor->SetBallColor( aColor.R, aColor.G, aColor.B );
 608           else if( aGroup->GetType() == SMESH::VOLUME )
 609             anActor->SetVolumeColor( aColor.R, aColor.G, aColor.B, deltaV );
 610           else
 611             anActor->SetSufaceColor( aColor.R, aColor.G, aColor.B, deltaF );
 612         }
 613       }
 614     }
 615     //MESSAGE("CreateActor " << anActor);
 616     if( anActor )
 617       if( SMESHGUI* aSMESHGUI = SMESHGUI::GetSMESHGUI() )
 618         aSMESHGUI->addActorAsObserver( anActor );
 619     return anActor;
 620   }
 621
 622
 623   void DisplayActor( SUIT_ViewWindow *theWnd, SMESH_Actor* theActor){
 624     if(SVTK_ViewWindow* vtkWnd = GetVtkViewWindow(theWnd)){
 625       try {
 626         OCC_CATCH_SIGNALS;
 627         //MESSAGE("DisplayActor " << theActor);
 628         vtkWnd->AddActor(theActor);
 629         vtkWnd->Repaint();
 630       }
 631       catch (...) {
 632         MESSAGE ( "Exception in SMESHGUI_VTKUtils::DisplayActor()" );
 633         OnVisuException();
 634       }
 635     }
 636   }
 637
 638
 639   void RemoveActor( SUIT_ViewWindow *theWnd, SMESH_Actor* theActor)
 640   {
 641     if ( SVTK_ViewWindow* vtkWnd = GetVtkViewWindow(theWnd)) {
 642       //MESSAGE("RemoveActor " << theActor);
 643       vtkWnd->RemoveActor(theActor);
 644       if(theActor->hasIO()){
 645         Handle(SALOME_InteractiveObject) anIO = theActor->getIO();
 646         if(anIO->hasEntry()){
 647           std::string anEntry = anIO->getEntry();
 648           SalomeApp_Study* aStudy = dynamic_cast<SalomeApp_Study*>( vtkWnd->getViewManager()->study() );
 649           int aStudyId = aStudy->id();
 650           TVisualObjCont::key_type aKey(aStudyId,anEntry);
 651           VISUAL_OBJ_CONT.erase(aKey);
 652         }
 653       }
 654       theActor->Delete();
 655       vtkWnd->Repaint();
 656     }
 657   }
 658
 659   //================================================================================
 660   /*!
 661    * \brief Return true if there are no SMESH actors in a view
 662    */
 663   //================================================================================
 664
 665   bool noSmeshActors(SUIT_ViewWindow *theWnd)
 666   {
 667     if(SVTK_ViewWindow* aViewWindow = GetVtkViewWindow(theWnd)) {
 668       vtkRenderer *aRenderer = aViewWindow->getRenderer();
 669       VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
 670       vtkActorCollection *aCollection = aCopy.GetActors();
 671       aCollection->InitTraversal();
 672       while(vtkActor *anAct = aCollection->GetNextActor())
 673         if(dynamic_cast<SMESH_Actor*>(anAct))
 674           return false;
 675     }
 676     return true;
 677   }
 678
 679   bool UpdateView(SUIT_ViewWindow *theWnd, EDisplaing theAction, const char* theEntry)
 680   {
 681     //MESSAGE("UpdateView");
 682     bool OK = false;
 683     SVTK_ViewWindow* aViewWnd = GetVtkViewWindow(theWnd);
 684     if (!aViewWnd)
 685       return OK;
 686
 687     SVTK_ViewWindow* vtkWnd = GetVtkViewWindow(theWnd);
 688     if (!vtkWnd)
 689       return OK;
 690
 691     SalomeApp_Study* aStudy = dynamic_cast<SalomeApp_Study*>( vtkWnd->getViewManager()->study() );
 692
 693     if (!aStudy)
 694       return OK;
 695
 696     {
 697       OK = true;
 698       vtkRenderer *aRenderer = aViewWnd->getRenderer();
 699       VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
 700       vtkActorCollection *aCollection = aCopy.GetActors();
 701       aCollection->InitTraversal();
 702
 703       switch (theAction) {
 704       case eDisplayAll: {
 705         while (vtkActor *anAct = aCollection->GetNextActor()) {
 706           if (SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>(anAct)) {
 707             //MESSAGE("--- display " << anActor);
 708             anActor->SetVisibility(true);
 709
 710             if(anActor->hasIO()){
 711               Handle(SALOME_InteractiveObject) anIO = anActor->getIO();
 712               if(anIO->hasEntry()){
 713                 aStudy->setVisibilityState(anIO->getEntry(), Qtx::ShownState);
 714               }
 715             }
 716           }
 717         }
 718         break;
 719       }
 720       case eDisplayOnly:
 721       case eEraseAll: {
 722         //MESSAGE("---case eDisplayOnly");
 723         while (vtkActor *anAct = aCollection->GetNextActor()) {
 724           if (SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>(anAct)) {
 725             //MESSAGE("--- erase " << anActor);
 726             anActor->SetVisibility(false);
 727           }
 728         }
 729         aStudy->setVisibilityStateForAll(Qtx::HiddenState);
 730       }
 731       default: {
 732         if (SMESH_Actor *anActor = FindActorByEntry(theWnd,theEntry)) {
 733           switch (theAction) {
 734             case eDisplay:
 735             case eDisplayOnly:
 736               //MESSAGE("--- display " << anActor);
 737               anActor->Update();
 738               anActor->SetVisibility(true);
 739               if (theAction == eDisplayOnly) aRenderer->ResetCameraClippingRange();
 740               aStudy->setVisibilityState(theEntry, Qtx::ShownState);
 741               break;
 742             case eErase:
 743               //MESSAGE("--- erase " << anActor);
 744               anActor->SetVisibility(false);
 745               aStudy->setVisibilityState(theEntry, Qtx::HiddenState);
 746               break;
 747             default:;
 748           }
 749         } else {
 750           switch (theAction) {
 751           case eDisplay:
 752           case eDisplayOnly:
 753             {
 754               //MESSAGE("---");
 755               SalomeApp_Study* aStudy = dynamic_cast<SalomeApp_Study*>(theWnd->getViewManager()->study());
 756               _PTR(Study) aDocument = aStudy->studyDS();
 757               // Pass non-visual objects (hypotheses, etc.), return true in this case
 758               CORBA::Long anId = aDocument->StudyId();
 759               TVisualObjPtr aVisualObj;
 760               if ( (aVisualObj = GetVisualObj(anId,theEntry)) && aVisualObj->IsValid())
 761               {
 762                 if ((anActor = CreateActor(aDocument,theEntry,true))) {
 763                   bool needFitAll = noSmeshActors(theWnd); // fit for the first object only
 764                   DisplayActor(theWnd,anActor);
 765                   anActor->SetVisibility(true);
 766                   aStudy->setVisibilityState(theEntry, Qtx::ShownState);
 767                   // FitAll(); - PAL16770(Display of a group performs an automatic fit all)
 768                   if (needFitAll) FitAll();
 769                 } else {
 770                   OK = false;
 771                 }
 772               }
 773               break;
 774             }
 775           default:;
 776           }
 777         }
 778       }
 779       }
 780     }
 781     return OK;
 782   }
 783
 784
 785   bool UpdateView(EDisplaing theAction, const char* theEntry) {
 786     //MESSAGE("UpdateView");
 787     SalomeApp_Study* aStudy = dynamic_cast< SalomeApp_Study* >( GetActiveStudy() );
 788     SalomeApp_Application* app = dynamic_cast< SalomeApp_Application* >( aStudy->application() );
 789     if ( SUIT_ViewManager* vm = app->activeViewManager() )
 790     {
 791       SUIT_ViewWindow *aWnd = vm->getActiveView();
 792       return UpdateView(aWnd,theAction,theEntry);
 793     }
 794     return false;
 795   }
 796
 797   void UpdateView( bool withChildrenOfSelected )
 798   {
 799     if ( SVTK_ViewWindow* aWnd = SMESH::GetCurrentVtkView()) {
 800       LightApp_SelectionMgr* mgr = SMESHGUI::selectionMgr();
 801       SALOME_ListIO selected; mgr->selectedObjects( selected );
 802
 803       if ( selected.Extent() == 0 ) {
 804         vtkRenderer* aRenderer = aWnd->getRenderer();
 805         VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
 806         vtkActorCollection *aCollection = aCopy.GetActors();
 807         aCollection->InitTraversal();
 808         while(vtkActor *anAct = aCollection->GetNextActor()){
 809           if(SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>(anAct)){
 810             if(anActor->hasIO())
 811               if (!Update(anActor->getIO(),anActor->GetVisibility()))
 812                 break; // avoid multiple warinings if visu failed
 813           }
 814         }
 815       }
 816       else
 817       {
 818         SALOME_ListIteratorOfListIO anIter( selected );
 819         for( ; anIter.More(); anIter.Next())
 820         {
 821           Handle(SALOME_InteractiveObject) anIO = anIter.Value();
 822           if ( !Update( anIO, true ))
 823             break; // avoid multiple warinings if visu failed
 824
 825           if ( withChildrenOfSelected ) // update all visible children
 826           {
 827             QString aFatherID = anIO->getEntry();
 828             vtkRenderer* aRenderer = aWnd->getRenderer();
 829             VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
 830             vtkActorCollection *aCollection = aCopy.GetActors();
 831             aCollection->InitTraversal();
 832             while ( vtkActor *anAct = aCollection->GetNextActor() ) {
 833               if ( SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>( anAct )) {
 834                 if ( anActor->hasIO() && anActor->GetVisibility() )
 835                 {
 836                   QString aChildID = anActor->getIO()->getEntry();
 837                   if ( aChildID.size() > aFatherID.size() &&
 838                        aChildID.startsWith( aFatherID ))
 839                     if ( ! Update( anActor->getIO(), true ))
 840                       break;
 841                 }
 842               }
 843             }
 844           }
 845         }
 846       }
 847       RepaintCurrentView();
 848     }
 849   }
 850
 851
 852   bool Update(const Handle(SALOME_InteractiveObject)& theIO, bool theDisplay)
 853   {
 854     //MESSAGE("Update");
 855     _PTR(Study) aStudy = GetActiveStudyDocument();
 856     CORBA::Long anId = aStudy->StudyId();
 857     if ( TVisualObjPtr aVisualObj = SMESH::GetVisualObj(anId,theIO->getEntry())) {
 858       if ( theDisplay )
 859         UpdateView(SMESH::eDisplay,theIO->getEntry());
 860       return true;
 861     }
 862     return false;
 863   }
 864
 865   bool UpdateNulData(const Handle(SALOME_InteractiveObject)& theIO, bool theDisplay)
 866   {
 867     //MESSAGE("UpdateNulData");
 868     _PTR(Study) aStudy = GetActiveStudyDocument();
 869     CORBA::Long anId = aStudy->StudyId();
 870     if ( TVisualObjPtr aVisualObj = SMESH::GetVisualObj(anId,theIO->getEntry(), true)) {
 871       if ( theDisplay )
 872         UpdateView(SMESH::eDisplay,theIO->getEntry());
 873       return true;
 874     }
 875     return false;
 876   }
 877
 878   void UpdateSelectionProp( SMESHGUI* theModule )
 879   {
 880     if( !theModule )
 881       return;
 882
 883     SalomeApp_Application* app = dynamic_cast< SalomeApp_Application* >( theModule->application() );
 884     if( !app )
 885     {
 886       MESSAGE( "UpdateSelectionProp: Application is null" );
 887       return;
 888     }
 889
 890     SUIT_ViewManager* vm = app->activeViewManager();
 891     if( !vm )
 892     {
 893       MESSAGE( "UpdateSelectionProp: View manager is null" );
 894       return;
 895     }
 896
 897     QVector<SUIT_ViewWindow*> views = vm->getViews();
 898
 899     SUIT_ResourceMgr* mgr = SMESH::GetResourceMgr( theModule );
 900     if( !mgr )
 901     {
 902       MESSAGE( "UpdateSelectionProp: Resource manager is null" );
 903       return;
 904     }
 905
 906     QColor
 907       aHiColor = mgr->colorValue( "SMESH", "selection_object_color", Qt::white ),
 908       aSelColor = mgr->colorValue( "SMESH", "selection_element_color", Qt::yellow ),
 909       aPreColor = mgr->colorValue( "SMESH", "highlight_color", Qt::cyan );
 910
 911     int aElem0DSize = mgr->integerValue("SMESH", "elem0d_size", 5);
 912     // int aBallSize   = mgr->integerValue("SMESH", "ball_elem_size", 5);
 913     int aLineWidth  = mgr->integerValue("SMESH", "element_width", 1);
 914     int maxSize = aElem0DSize;
 915     if (aElem0DSize > maxSize) maxSize = aElem0DSize;
 916     if (aLineWidth > maxSize) maxSize = aLineWidth;
 917     //  if (aBallSize > maxSize) maxSize = aBallSize;
 918
 919     double
 920       SP1 = mgr->doubleValue( "SMESH", "selection_precision_node", 0.025 ),
 921       SP2 = mgr->doubleValue( "SMESH", "selection_precision_element", 0.001 ),
 922       SP3 = mgr->doubleValue( "SMESH", "selection_precision_object", 0.025 );
 923
 924     for ( int i=0, n=views.count(); i<n; i++ )
 925     {
 926       // update VTK viewer properties
 927       if ( SVTK_ViewWindow* aVtkView = GetVtkViewWindow( views[i] ))
 928       {
 929         // mesh element selection
 930         aVtkView->SetSelectionProp(aSelColor.red()/255.,
 931                                    aSelColor.green()/255.,
 932                                    aSelColor.blue()/255.);
 933         // tolerances
 934         aVtkView->SetSelectionTolerance(SP1, SP2, SP3);
 935
 936         // pre-selection
 937         aVtkView->SetPreselectionProp(aPreColor.red()/255.,
 938                                       aPreColor.green()/255.,
 939                                       aPreColor.blue()/255.);
 940         // update actors
 941         vtkRenderer* aRenderer = aVtkView->getRenderer();
 942         VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
 943         vtkActorCollection *aCollection = aCopy.GetActors();
 944         aCollection->InitTraversal();
 945         while ( vtkActor *anAct = aCollection->GetNextActor() ) {
 946           if ( SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>(anAct) ) {
 947             anActor->SetHighlightColor(aHiColor.red()/255.,
 948                                        aHiColor.green()/255.,
 949                                        aHiColor.blue()/255.);
 950             anActor->SetPreHighlightColor(aPreColor.red()/255.,
 951                                           aPreColor.green()/255.,
 952                                           aPreColor.blue()/255.);
 953           }
 954         }
 955       }
 956     }
 957   }
 958
 959
 960   void UpdateFontProp( SMESHGUI* theModule )
 961   {
 962     if ( !theModule ) return;
 963
 964     SalomeApp_Application* app = dynamic_cast< SalomeApp_Application* >( theModule->application() );
 965     if ( !app ) return;
 966
 967     SUIT_ResourceMgr* mgr = SMESH::GetResourceMgr( theModule );
 968     if ( !mgr ) return;
 969     //
 970     double anRGBNd[3] = {1,1,1};
 971     SMESH::GetColor( "SMESH", "numbering_node_color", anRGBNd[0], anRGBNd[1], anRGBNd[2], QColor( 255, 255, 255 ) );
 972     int aSizeNd = 10;
 973     SMESH::LabelFont aFamilyNd = SMESH::FntTimes;
 974     bool aBoldNd    = true;
 975     bool anItalicNd = false;
 976     bool aShadowNd  = false;
 977
 978     if ( mgr->hasValue( "SMESH", "numbering_node_font" ) ) {
 979       QFont f = mgr->fontValue( "SMESH", "numbering_node_font" );
 980       if ( f.family()      == "Arial" )   aFamilyNd = SMESH::FntArial;
 981       else if ( f.family() == "Courier" ) aFamilyNd = SMESH::FntCourier;
 982       else if ( f.family() == "Times" )   aFamilyNd = SMESH::FntTimes;
 983       aBoldNd    = f.bold();
 984       anItalicNd = f.italic();
 985       aShadowNd  = f.overline();
 986       aSizeNd    = f.pointSize();
 987     }
 988     //
 989     double anRGBEl[3] = {0,1,0};
 990     SMESH::GetColor( "SMESH", "numbering_elem_color", anRGBEl[0], anRGBEl[1], anRGBEl[2], QColor( 0, 255, 0 ) );
 991     int aSizeEl = 12;
 992     SMESH::LabelFont aFamilyEl = SMESH::FntTimes;
 993     bool aBoldEl    = true;
 994     bool anItalicEl = false;
 995     bool aShadowEl  = false;
 996
 997     if ( mgr->hasValue( "SMESH", "numbering_elem_font" ) ) {
 998       QFont f = mgr->fontValue( "SMESH", "numbering_elem_font" );
 999
1000       if ( f.family()      == "Arial" )   aFamilyEl = SMESH::FntArial;
1001       else if ( f.family() == "Courier" ) aFamilyEl = SMESH::FntCourier;
1002       else if ( f.family() == "Times" )   aFamilyEl = SMESH::FntTimes;
1003       aBoldEl    = f.bold();
1004       anItalicEl = f.italic();
1005       aShadowEl  = f.overline();
1006       aSizeEl    = f.pointSize();
1007     }
1008     //
1009     ViewManagerList vmList;
1010     app->viewManagers( SVTK_Viewer::Type(), vmList );
1011     foreach ( SUIT_ViewManager* vm, vmList ) {
1012       QVector<SUIT_ViewWindow*> views = vm->getViews();
1013       foreach ( SUIT_ViewWindow* vw, views ) {
1014         // update VTK viewer properties
1015         if ( SVTK_ViewWindow* aVtkView = GetVtkViewWindow( vw ) ) {
1016           // update actors
1017           vtkRenderer* aRenderer = aVtkView->getRenderer();
1018           VTK::ActorCollectionCopy aCopy( aRenderer->GetActors() );
1019           vtkActorCollection* aCollection = aCopy.GetActors();
1020           aCollection->InitTraversal();
1021           while ( vtkActor* anAct = aCollection->GetNextActor() ) {
1022             if ( SMESH_NodeLabelActor* anActor = dynamic_cast< SMESH_NodeLabelActor* >( anAct ) ) {
1023               anActor->SetFontProperties( aFamilyNd, aSizeNd, aBoldNd, anItalicNd, aShadowNd, anRGBNd[0], anRGBNd[1], anRGBNd[2] );
1024             }
1025             else if ( SMESH_CellLabelActor* anActor = dynamic_cast< SMESH_CellLabelActor* >( anAct ) ) {
1026               anActor->SetFontProperties( aFamilyEl, aSizeEl, aBoldEl, anItalicEl, aShadowEl, anRGBEl[0], anRGBEl[1], anRGBEl[2] );
1027             }
1028           }
1029           aVtkView->Repaint( false );
1030         }
1031       }
1032     }
1033   }
1034
1035   //----------------------------------------------------------------------------
1036   SVTK_Selector*
1037   GetSelector(SUIT_ViewWindow *theWindow)
1038   {
1039     if(SVTK_ViewWindow* aWnd = GetVtkViewWindow(theWindow))
1040       return aWnd->GetSelector();
1041
1042     return NULL;
1043   }
1044
1045   void SetFilter(const Handle(VTKViewer_Filter)& theFilter,
1046                  SVTK_Selector* theSelector)
1047   {
1048     if (theSelector)
1049       theSelector->SetFilter(theFilter);
1050   }
1051
1052   Handle(VTKViewer_Filter) GetFilter(int theId, SVTK_Selector* theSelector)
1053   {
1054     return theSelector->GetFilter(theId);
1055   }
1056
1057   bool IsFilterPresent(int theId, SVTK_Selector* theSelector)
1058   {
1059     return theSelector->IsFilterPresent(theId);
1060   }
1061
1062   void RemoveFilter(int theId, SVTK_Selector* theSelector)
1063   {
1064     theSelector->RemoveFilter(theId);
1065   }
1066
1067   void RemoveFilters(SVTK_Selector* theSelector)
1068   {
1069     for ( int id = SMESH::NodeFilter; theSelector && id < SMESH::LastFilter; id++ )
1070       theSelector->RemoveFilter( id );
1071   }
1072
1073   bool IsValid(SALOME_Actor* theActor, int theCellId,
1074                SVTK_Selector* theSelector)
1075   {
1076     return theSelector->IsValid(theActor,theCellId);
1077   }
1078
1079
1080   //----------------------------------------------------------------------------
1081   void SetPointRepresentation(bool theIsVisible)
1082   {
1083     if ( SVTK_ViewWindow* aViewWindow = GetCurrentVtkView() ) {
1084       vtkRenderer *aRenderer = aViewWindow->getRenderer();
1085       VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
1086       vtkActorCollection *aCollection = aCopy.GetActors();
1087       aCollection->InitTraversal();
1088       while(vtkActor *anAct = aCollection->GetNextActor()){
1089         if(SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>(anAct)){
1090           if(anActor->GetVisibility()){
1091             anActor->SetPointRepresentation(theIsVisible);
1092           }
1093         }
1094       }
1095       RepaintCurrentView();
1096     }
1097   }
1098
1099
1100   void SetPickable(SMESH_Actor* theActor)
1101   {
1102     if ( SVTK_ViewWindow* aWnd = GetCurrentVtkView() ) {
1103       int anIsAllPickable = (theActor == NULL);
1104       vtkRenderer *aRenderer = aWnd->getRenderer();
1105       VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
1106       vtkActorCollection *aCollection = aCopy.GetActors();
1107       aCollection->InitTraversal();
1108       while(vtkActor *anAct = aCollection->GetNextActor()){
1109         if(SALOME_Actor *anActor = dynamic_cast<SALOME_Actor*>(anAct)){
1110           if(anActor->GetVisibility()){
1111             anActor->SetPickable(anIsAllPickable);
1112           }
1113         }
1114       }
1115       if(theActor)
1116         theActor->SetPickable(!anIsAllPickable);
1117       RepaintCurrentView();
1118     }
1119   }
1120
1121
1122   //----------------------------------------------------------------------------
1123   int GetNameOfSelectedNodes(SVTK_Selector*                          theSelector,
1124                              const Handle(SALOME_InteractiveObject)& theIO,
1125                              QString&                                theName)
1126   {
1127     theName = "";
1128     TColStd_IndexedMapOfInteger aMapIndex;
1129     theSelector->GetIndex(theIO,aMapIndex);
1130
1131     for(int i = 1; i <= aMapIndex.Extent(); i++)
1132       theName += QString(" %1").arg(aMapIndex(i));
1133
1134     return aMapIndex.Extent();
1135   }
1136
1137   int GetNameOfSelectedElements(SVTK_Selector* theSelector,
1138                                 const Handle(SALOME_InteractiveObject)& theIO,
1139                                 QString& theName)
1140   {
1141     theName = "";
1142     TColStd_IndexedMapOfInteger aMapIndex;
1143     theSelector->GetIndex(theIO,aMapIndex);
1144
1145     typedef std::set<int> TIdContainer;
1146     TIdContainer anIdContainer;
1147     for( int i = 1; i <= aMapIndex.Extent(); i++)
1148       anIdContainer.insert(aMapIndex(i));
1149
1150     TIdContainer::const_iterator anIter = anIdContainer.begin();
1151     for( ; anIter != anIdContainer.end(); anIter++)
1152       theName += QString(" %1").arg(*anIter);
1153
1154     return aMapIndex.Extent();
1155   }
1156
1157
1158   int GetEdgeNodes(SVTK_Selector* theSelector,
1159                    const TVisualObjPtr& theVisualObject,
1160                    int& theId1,
1161                    int& theId2)
1162   {
1163     const SALOME_ListIO& selected = theSelector->StoredIObjects();
1164
1165     if ( selected.Extent() != 1 )
1166       return -1;
1167
1168     Handle(SALOME_InteractiveObject) anIO = selected.First();
1169     if ( anIO.IsNull() || !anIO->hasEntry() )
1170       return -1;
1171
1172     TColStd_IndexedMapOfInteger aMapIndex;
1173     theSelector->GetIndex( anIO, aMapIndex );
1174     if ( aMapIndex.Extent() != 2 )
1175       return -1;
1176
1177     int anObjId = -1, anEdgeNum = -1;
1178     for ( int i = 1; i <= aMapIndex.Extent(); i++ ) {
1179       int aVal = aMapIndex( i );
1180       if ( aVal > 0 )
1181         anObjId = aVal;
1182       else
1183         anEdgeNum = abs( aVal ) - 1;
1184     }
1185
1186     if ( anObjId == -1 || anEdgeNum == -1 )
1187       return -1;
1188
1189     return theVisualObject->GetEdgeNodes( anObjId, anEdgeNum, theId1, theId2 ) ? 1 : -1;
1190   }
1191
1192   //----------------------------------------------------------------------------
1193   int GetNameOfSelectedNodes(LightApp_SelectionMgr *theMgr,
1194                              const Handle(SALOME_InteractiveObject)& theIO,
1195                              QString& theName)
1196   {
1197     theName = "";
1198     if(theIO->hasEntry()){
1199       if(FindActorByEntry(theIO->getEntry())){
1200         TColStd_IndexedMapOfInteger aMapIndex;
1201         theMgr->GetIndexes(theIO,aMapIndex);
1202         for(int i = 1; i <= aMapIndex.Extent(); i++){
1203           theName += QString(" %1").arg(aMapIndex(i));
1204         }
1205         return aMapIndex.Extent();
1206       }
1207     }
1208     return -1;
1209   }
1210
1211   int GetNameOfSelectedNodes(LightApp_SelectionMgr *theMgr, QString& theName)
1212   {
1213     theName = "";
1214     SALOME_ListIO selected; theMgr->selectedObjects( selected );
1215     if(selected.Extent() == 1){
1216       Handle(SALOME_InteractiveObject) anIO = selected.First();
1217       return GetNameOfSelectedNodes(theMgr,anIO,theName);
1218     }
1219     return -1;
1220   }
1221
1222
1223   int GetNameOfSelectedElements(LightApp_SelectionMgr *                 theMgr,
1224                                 const Handle(SALOME_InteractiveObject)& theIO,
1225                                 QString&                                theName)
1226   {
1227     theName = "";
1228     if(theIO->hasEntry()){
1229       if(FindActorByEntry(theIO->getEntry())){
1230         TColStd_IndexedMapOfInteger aMapIndex;
1231         theMgr->GetIndexes(theIO,aMapIndex);
1232         typedef std::set<int> TIdContainer;
1233         TIdContainer anIdContainer;
1234         for( int i = 1; i <= aMapIndex.Extent(); i++)
1235           anIdContainer.insert(aMapIndex(i));
1236         TIdContainer::const_iterator anIter = anIdContainer.begin();
1237         for( ; anIter != anIdContainer.end(); anIter++){
1238           theName += QString(" %1").arg(*anIter);
1239         }
1240         return aMapIndex.Extent();
1241       }
1242     }
1243     return -1;
1244   }
1245
1246
1247   int GetNameOfSelectedElements(LightApp_SelectionMgr *theMgr, QString& theName)
1248   {
1249     theName = "";
1250     SALOME_ListIO selected; theMgr->selectedObjects( selected );
1251
1252     if( selected.Extent() == 1){
1253       Handle(SALOME_InteractiveObject) anIO = selected.First();
1254       return GetNameOfSelectedElements(theMgr,anIO,theName);
1255     }
1256     return -1;
1257   }
1258
1259   int GetSelected(LightApp_SelectionMgr*       theMgr,
1260                   TColStd_IndexedMapOfInteger& theMap,
1261                   const bool                   theIsElement)
1262   {
1263     theMap.Clear();
1264     SALOME_ListIO selected; theMgr->selectedObjects( selected );
1265
1266     if ( selected.Extent() == 1 )
1267     {
1268       Handle(SALOME_InteractiveObject) anIO = selected.First();
1269       if ( anIO->hasEntry() ) {
1270         theMgr->GetIndexes( anIO, theMap );
1271       }
1272     }
1273     return theMap.Extent();
1274   }
1275
1276
1277   int GetEdgeNodes( LightApp_SelectionMgr* theMgr, int& theId1, int& theId2 )
1278   {
1279     SALOME_ListIO selected; theMgr->selectedObjects( selected );
1280
1281     if ( selected.Extent() != 1 )
1282       return -1;
1283
1284     Handle(SALOME_InteractiveObject) anIO = selected.First();
1285     if ( anIO.IsNull() || !anIO->hasEntry() )
1286       return -1;
1287
1288     SMESH_Actor *anActor = SMESH::FindActorByEntry( anIO->getEntry() );
1289     if ( anActor == 0 )
1290       return -1;
1291
1292     TColStd_IndexedMapOfInteger aMapIndex;
1293     theMgr->GetIndexes( anIO, aMapIndex );
1294     if ( aMapIndex.Extent() != 2 )
1295       return -1;
1296
1297     int anObjId = -1, anEdgeNum = -1;
1298     for ( int i = 1; i <= aMapIndex.Extent(); i++ ) {
1299       int aVal = aMapIndex( i );
1300       if ( aVal > 0 )
1301         anObjId = aVal;
1302       else
1303         anEdgeNum = abs( aVal );
1304     }
1305
1306     if ( anObjId == -1 || anEdgeNum == -1 )
1307       return -1;
1308
1309     return anActor->GetObject()->GetEdgeNodes( anObjId, anEdgeNum, theId1, theId2 ) ? 1 : -1;
1310   }
1311
1312   void SetControlsPrecision( const long theVal )
1313   {
1314     if( SVTK_ViewWindow* aWnd = SMESH::GetCurrentVtkView() )
1315     {
1316       vtkRenderer *aRenderer = aWnd->getRenderer();
1317       VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
1318       vtkActorCollection *aCollection = aCopy.GetActors();
1319       aCollection->InitTraversal();
1320
1321       while ( vtkActor *anAct = aCollection->GetNextActor())
1322       {
1323         if ( SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>( anAct ) )
1324         {
1325           anActor->SetControlsPrecision( theVal );
1326           anActor->SetControlMode( anActor->GetControlMode() );
1327         }
1328       }
1329
1330     }
1331   }
1332
1333   //----------------------------------------------------------------------------
1334   // internal function
1335   void ComputeBoundsParam( double theBounds[6],
1336                            double theDirection[3],
1337                            double theMinPnt[3],
1338                            double& theMaxBoundPrj,
1339                            double& theMinBoundPrj )
1340   {
1341     //Enlarge bounds in order to avoid conflicts of precision
1342     for(int i = 0; i < 6; i += 2){
1343       static double EPS = 1.0E-3;
1344       double aDelta = (theBounds[i+1] - theBounds[i])*EPS;
1345       theBounds[i] -= aDelta;
1346       theBounds[i+1] += aDelta;
1347     }
1348
1349     double aBoundPoints[8][3] = { {theBounds[0],theBounds[2],theBounds[4]},
1350                                   {theBounds[1],theBounds[2],theBounds[4]},
1351                                   {theBounds[0],theBounds[3],theBounds[4]},
1352                                   {theBounds[1],theBounds[3],theBounds[4]},
1353                                   {theBounds[0],theBounds[2],theBounds[5]},
1354                                   {theBounds[1],theBounds[2],theBounds[5]},
1355                                   {theBounds[0],theBounds[3],theBounds[5]},
1356                                   {theBounds[1],theBounds[3],theBounds[5]}};
1357
1358     int aMaxId = 0;
1359     theMaxBoundPrj = vtkMath::Dot(theDirection,aBoundPoints[aMaxId]);
1360     theMinBoundPrj = theMaxBoundPrj;
1361     for(int i = 1; i < 8; i++){
1362       double aTmp = vtkMath::Dot(theDirection,aBoundPoints[i]);
1363       if(theMaxBoundPrj < aTmp){
1364         theMaxBoundPrj = aTmp;
1365         aMaxId = i;
1366       }
1367       if(theMinBoundPrj > aTmp){
1368         theMinBoundPrj = aTmp;
1369       }
1370     }
1371     double *aMinPnt = aBoundPoints[aMaxId];
1372     theMinPnt[0] = aMinPnt[0];
1373     theMinPnt[1] = aMinPnt[1];
1374     theMinPnt[2] = aMinPnt[2];
1375   }
1376
1377   // internal function
1378   void DistanceToPosition( double theBounds[6],
1379                            double theDirection[3],
1380                            double theDist,
1381                            double thePos[3] )
1382   {
1383     double aMaxBoundPrj, aMinBoundPrj, aMinPnt[3];
1384     ComputeBoundsParam(theBounds,theDirection,aMinPnt,aMaxBoundPrj,aMinBoundPrj);
1385     double aLength = (aMaxBoundPrj-aMinBoundPrj)*theDist;
1386     thePos[0] = aMinPnt[0]-theDirection[0]*aLength;
1387     thePos[1] = aMinPnt[1]-theDirection[1]*aLength;
1388     thePos[2] = aMinPnt[2]-theDirection[2]*aLength;
1389   }
1390
1391   // internal function (currently unused, left just in case)
1392   void PositionToDistance( double theBounds[6],
1393                            double theDirection[3],
1394                            double thePos[3],
1395                            double& theDist )
1396   {
1397     double aMaxBoundPrj, aMinBoundPrj, aMinPnt[3];
1398     ComputeBoundsParam(theBounds,theDirection,aMinPnt,aMaxBoundPrj,aMinBoundPrj);
1399     double aPrj = vtkMath::Dot(theDirection,thePos);
1400     theDist = (aPrj-aMinBoundPrj)/(aMaxBoundPrj-aMinBoundPrj);
1401   }
1402
1403   bool ComputeClippingPlaneParameters( std::list<vtkActor*> theActorList,
1404                                        double theNormal[3],
1405                                        double theDist,
1406                                        double theBounds[6],
1407                                        double theOrigin[3] )
1408   {
1409     bool anIsOk = false;
1410     anIsOk = ComputeBounds( theActorList, theBounds );
1411
1412
1413     if( !anIsOk )
1414       return false;
1415
1416     DistanceToPosition( theBounds, theNormal, theDist, theOrigin );
1417     return true;
1418   }
1419
1420   bool ComputeBounds( std::list<vtkActor*> theActorList,
1421                       double theBounds[6])
1422   {
1423     bool anIsOk = false;
1424     theBounds[0] = theBounds[2] = theBounds[4] = VTK_DOUBLE_MAX;
1425     theBounds[1] = theBounds[3] = theBounds[5] = -VTK_DOUBLE_MAX;
1426     std::list<vtkActor*>::iterator anIter = theActorList.begin();
1427     for( ; anIter != theActorList.end(); anIter++ ) {
1428       if( vtkActor* aVTKActor = *anIter ) {
1429         if( SMESH_Actor* anActor = SMESH_Actor::SafeDownCast( aVTKActor ) ) {
1430           double aBounds[6];
1431           anActor->GetUnstructuredGrid()->GetBounds( aBounds );
1432           theBounds[0] = std::min( theBounds[0], aBounds[0] );
1433           theBounds[1] = std::max( theBounds[1], aBounds[1] );
1434           theBounds[2] = std::min( theBounds[2], aBounds[2] );
1435           theBounds[3] = std::max( theBounds[3], aBounds[3] );
1436           theBounds[4] = std::min( theBounds[4], aBounds[4] );
1437           theBounds[5] = std::max( theBounds[5], aBounds[5] );
1438           anIsOk = true;
1439         }
1440       }
1441     }
1442     return anIsOk;
1443   }
1444
1445 #ifndef DISABLE_PLOT2DVIEWER
1446   //================================================================================
1447   /*!
1448    * \brief Find all SMESH_Actor's in the View Window.
1449    * If actor constains Plot2d_Histogram object remove it from each Plot2d Viewer.
1450    */
1451   //================================================================================
1452
1453   void ClearPlot2Viewers( SUIT_ViewWindow* theWindow )
1454   {
1455     if ( SVTK_ViewWindow* aViewWindow = GetVtkViewWindow(theWindow) ) {
1456       vtkRenderer *aRenderer = aViewWindow->getRenderer();
1457       VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
1458       vtkActorCollection *aCollection = aCopy.GetActors();
1459       aCollection->InitTraversal();
1460       while(vtkActor *anAct = aCollection->GetNextActor()){
1461         if(SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>(anAct)){
1462           if(anActor->hasIO() && anActor->GetPlot2Histogram() ){
1463             ProcessIn2DViewers(anActor,RemoveFrom2dViewer);
1464           }
1465         }
1466       }
1467     }
1468   }
1469
1470 #endif
1471
1472 } // end of namespace SMESH