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 <TColStd_IndexedMapOfInteger.hxx>
  76 #include <Standard_ErrorHandler.hxx>
  77
  78 namespace SMESH
  79 {
  80   typedef std::map<TKeyOfVisualObj,TVisualObjPtr> TVisualObjCont;
  81   static TVisualObjCont VISUAL_OBJ_CONT;
  82
  83   //=============================================================================
  84   /*!
  85    * \brief Allocate some memory at construction and release it at destruction.
  86    * Is used to be able to continue working after mesh generation or visualization
  87    * break due to lack of memory
  88    */
  89   //=============================================================================
  90
  91   struct MemoryReserve
  92   {
  93     char* myBuf;
  94     MemoryReserve(): myBuf( new char[1024*1024*1] ){} // 1M
  95     void Free() { if (myBuf) { delete [] myBuf; myBuf = 0; }}
  96     ~MemoryReserve() { Free(); }
  97   };
  98   static MemoryReserve* theVISU_MemoryReserve = new MemoryReserve;
  99
 100   //================================================================================
 101   /*!
 102    * \brief Remove VisualObj and its actor from all views
 103    */
 104   //================================================================================
 105
 106   void RemoveVisualObjectWithActors( const char* theEntry, bool fromAllViews )
 107   {
 108     SalomeApp_Application* app = dynamic_cast<SalomeApp_Application*>(SUIT_Session::session()->activeApplication());
 109     if(!app)
 110       return;
 111     SalomeApp_Study* aStudy  = dynamic_cast<SalomeApp_Study*>(app->activeStudy());
 112     if(!aStudy)
 113       return;
 114     ViewManagerList aList;
 115
 116     if(fromAllViews) {
 117       app->viewManagers(SVTK_Viewer::Type() , aList);
 118     } else {
 119       SUIT_ViewManager* aVM = app->getViewManager(SVTK_Viewer::Type(), true);
 120       if(aVM)
 121         aList.append(aVM);
 122     }
 123     bool actorRemoved = false;
 124     ViewManagerList::ConstIterator it = aList.begin();
 125     SUIT_ViewManager* aViewManager = 0;
 126     for( ; it!=aList.end();it++) {
 127       aViewManager = *it;
 128       QVector<SUIT_ViewWindow*> views = aViewManager->getViews();
 129       for ( int iV = 0; iV < views.count(); ++iV ) {
 130         if ( SMESH_Actor* actor = FindActorByEntry( views[iV], theEntry)) {
 131           if(SVTK_ViewWindow* vtkWnd = GetVtkViewWindow(views[iV])) {
 132             vtkWnd->RemoveActor(actor);
 133             actorRemoved = true;
 134           }
 135           actor->Delete();
 136         }
 137       }
 138     }
 139
 140     if (aViewManager ) {
 141       int aStudyId = aViewManager->study()->id();
 142       TVisualObjCont::key_type aKey(aStudyId,theEntry);
 143       TVisualObjCont::iterator anIter = VISUAL_OBJ_CONT.find(aKey);
 144       if(anIter != VISUAL_OBJ_CONT.end()) {
 145         // for unknown reason, object destructor is not called, so clear object manually
 146         anIter->second->GetUnstructuredGrid()->SetCells(0,0,0,0,0);
 147         anIter->second->GetUnstructuredGrid()->SetPoints(0);
 148       }
 149       VISUAL_OBJ_CONT.erase(aKey);
 150     }
 151
 152     if(actorRemoved)
 153       aStudy->setVisibilityState(theEntry, Qtx::HiddenState);
 154   }
 155   //================================================================================
 156   /*!
 157    * \brief Remove all VisualObjs and their actors from all views
 158    */
 159   //================================================================================
 160
 161   void RemoveAllObjectsWithActors()
 162   {
 163     SalomeApp_Application* app = dynamic_cast<SalomeApp_Application*>
 164       ( SUIT_Session::session()->activeApplication() );
 165     if (!app) return;
 166     ViewManagerList viewMgrs = app->viewManagers();
 167     for ( int iM = 0; iM < viewMgrs.count(); ++iM ) {
 168       SUIT_ViewManager* aViewManager = viewMgrs.at( iM );
 169       if ( aViewManager && aViewManager->getType() == SVTK_Viewer::Type()) {
 170         QVector<SUIT_ViewWindow*> views = aViewManager->getViews();
 171         for ( int iV = 0; iV < views.count(); ++iV ) {
 172           if(SVTK_ViewWindow* vtkWnd = GetVtkViewWindow(views[iV])) {
 173             vtkRenderer *aRenderer = vtkWnd->getRenderer();
 174             VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
 175             vtkActorCollection *actors = aCopy.GetActors();
 176             for (int i = 0; i < actors->GetNumberOfItems(); ++i ) {
 177               // size of actors changes inside the loop
 178               if (SMESH_Actor *actor = dynamic_cast<SMESH_Actor*>(actors->GetItemAsObject(i)))
 179               {
 180                 vtkWnd->RemoveActor(actor);
 181                 actor->Delete();
 182               }
 183             }
 184           }
 185         }
 186       }
 187     }
 188     TVisualObjCont::iterator anIter = VISUAL_OBJ_CONT.begin();
 189     for ( ; anIter != VISUAL_OBJ_CONT.end(); ++anIter ) {
 190       // for unknown reason, object destructor is not called, so clear object manually
 191       anIter->second->GetUnstructuredGrid()->SetCells(0,0,0,0,0);
 192       anIter->second->GetUnstructuredGrid()->SetPoints(0);
 193     }
 194     VISUAL_OBJ_CONT.clear();
 195   }
 196
 197   //================================================================================
 198   /*!
 199    * \brief Remove all VisualObjs of a study
 200    */
 201   //================================================================================
 202
 203   void RemoveVisuData(int studyID)
 204   {
 205     SalomeApp_Application* app = dynamic_cast<SalomeApp_Application*>
 206       ( SUIT_Session::session()->activeApplication() );
 207     if (!app) return;
 208     ViewManagerList viewMgrs = app->viewManagers();
 209     for ( int iM = 0; iM < viewMgrs.count(); ++iM ) {
 210       SUIT_ViewManager* aViewManager = viewMgrs.at( iM );
 211       if ( aViewManager && aViewManager->getType() == SVTK_Viewer::Type() &&
 212            aViewManager->study()->id() == studyID ) {
 213         QVector<SUIT_ViewWindow*> views = aViewManager->getViews();
 214         for ( int iV = 0; iV < views.count(); ++iV ) {
 215           if(SVTK_ViewWindow* vtkWnd = GetVtkViewWindow(views[iV])) {
 216             vtkRenderer *aRenderer = vtkWnd->getRenderer();
 217             VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
 218             vtkActorCollection *actors = aCopy.GetActors();
 219             for (int i = 0; i < actors->GetNumberOfItems(); ++i ) {
 220               // size of actors changes inside the loop
 221               if(SMESH_Actor *actor = dynamic_cast<SMESH_Actor*>(actors->GetItemAsObject(i)))
 222               {
 223                 vtkWnd->RemoveActor(actor);
 224                 actor->Delete();
 225               }
 226             }
 227           }
 228         }
 229       }
 230     }
 231     TVisualObjCont::iterator anIter = VISUAL_OBJ_CONT.begin();
 232     for ( ; anIter != VISUAL_OBJ_CONT.end(); ) {
 233       int curId = anIter->first.first;
 234       if ( curId == studyID ) {
 235         // for unknown reason, object destructor is not called, so clear object manually
 236         anIter->second->GetUnstructuredGrid()->SetCells(0,0,0,0,0);
 237         anIter->second->GetUnstructuredGrid()->SetPoints(0);
 238         VISUAL_OBJ_CONT.erase( anIter++ ); // anIter++ returns a copy of self before incrementing
 239       }
 240       else {
 241         anIter++;
 242       }
 243     }
 244   }
 245
 246   //================================================================================
 247   /*!
 248    * \brief Notify the user on problems during visualization
 249    */
 250   //================================================================================
 251
 252   void OnVisuException()
 253   {
 254     try {
 255 #if (OCC_VERSION_MAJOR << 16 | OCC_VERSION_MINOR << 8 | OCC_VERSION_MAINTENANCE) > 0x060100
 256       OCC_CATCH_SIGNALS;
 257 #endif
 258       // PAL16774 (Crash after display of many groups). Salome sometimes crashes just
 259       // after or at showing this message, so we do an additional check of available memory
 260 //       char* buf = new char[100*1024];
 261 //       delete [] buf;
 262       SUIT_MessageBox::warning(SMESHGUI::desktop(), QObject::tr("SMESH_WRN_WARNING"),
 263                                QObject::tr("SMESH_VISU_PROBLEM"));
 264     } catch (...) {
 265       // no more memory at all: last resort
 266       MESSAGE_BEGIN ( "SMESHGUI_VTKUtils::OnVisuException(), exception even at showing a message!!!" <<
 267                       std::endl << "Try to remove all visual data..." );
 268       if (theVISU_MemoryReserve) {
 269         delete theVISU_MemoryReserve;
 270         theVISU_MemoryReserve = 0;
 271       }
 272       RemoveAllObjectsWithActors();
 273       SUIT_MessageBox::warning(SMESHGUI::desktop(), QObject::tr("SMESH_WRN_WARNING"),
 274                                QObject::tr("SMESH_VISU_PROBLEM_CLEAR"));
 275       MESSAGE_END ( "...done" );
 276     }
 277   }
 278   //================================================================================
 279   /*!
 280    * \brief Returns an updated visual object
 281    */
 282   //================================================================================
 283
 284   TVisualObjPtr GetVisualObj(int theStudyId, const char* theEntry, bool nulData){
 285     TVisualObjPtr aVisualObj;
 286     TVisualObjCont::key_type aKey(theStudyId,theEntry);
 287     try{
 288 #if (OCC_VERSION_MAJOR << 16 | OCC_VERSION_MINOR << 8 | OCC_VERSION_MAINTENANCE) > 0x060100
 289       OCC_CATCH_SIGNALS;
 290 #endif
 291       TVisualObjCont::iterator anIter = VISUAL_OBJ_CONT.find(aKey);
 292       if(anIter != VISUAL_OBJ_CONT.end()){
 293         aVisualObj = anIter->second;
 294       }else{
 295         SalomeApp_Application* app =
 296           dynamic_cast<SalomeApp_Application*>( SMESHGUI::activeStudy()->application() );
 297         _PTR(Study) aStudy = SMESHGUI::activeStudy()->studyDS();
 298         _PTR(SObject) aSObj = aStudy->FindObjectID(theEntry);
 299         if(aSObj){
 300           _PTR(GenericAttribute) anAttr;
 301           if(aSObj->FindAttribute(anAttr,"AttributeIOR")){
 302             _PTR(AttributeIOR) anIOR = anAttr;
 303             CORBA::String_var aVal = anIOR->Value().c_str();
 304             CORBA::Object_var anObj = app->orb()->string_to_object( aVal.in() );
 305             if(!CORBA::is_nil(anObj)){
 306               //Try narrow to SMESH_Mesh interface
 307               SMESH::SMESH_Mesh_var aMesh = SMESH::SMESH_Mesh::_narrow(anObj);
 308               if(!aMesh->_is_nil()){
 309                 aVisualObj.reset(new SMESH_MeshObj(aMesh));
 310                 TVisualObjCont::value_type aValue(aKey,aVisualObj);
 311                 VISUAL_OBJ_CONT.insert(aValue);
 312               }
 313               //Try narrow to SMESH_Group interface
 314               SMESH::SMESH_GroupBase_var aGroup = SMESH::SMESH_GroupBase::_narrow(anObj);
 315               if(!aGroup->_is_nil()){
 316                 _PTR(SObject) aFatherSObj = aSObj->GetFather();
 317                 if(!aFatherSObj) return aVisualObj;
 318                 aFatherSObj = aFatherSObj->GetFather();
 319                 if(!aFatherSObj) return aVisualObj;
 320                 CORBA::String_var anEntry = aFatherSObj->GetID().c_str();
 321                 TVisualObjPtr aVisObj = GetVisualObj(theStudyId,anEntry.in());
 322                 if(SMESH_MeshObj* aMeshObj = dynamic_cast<SMESH_MeshObj*>(aVisObj.get())){
 323                   aVisualObj.reset(new SMESH_GroupObj(aGroup,aMeshObj));
 324                   TVisualObjCont::value_type aValue(aKey,aVisualObj);
 325                   VISUAL_OBJ_CONT.insert(aValue);
 326                 }
 327               }
 328               //Try narrow to SMESH_subMesh interface
 329               SMESH::SMESH_subMesh_var aSubMesh = SMESH::SMESH_subMesh::_narrow(anObj);
 330               if(!aSubMesh->_is_nil()){
 331                 _PTR(SObject) aFatherSObj = aSObj->GetFather();
 332                 if(!aFatherSObj) return aVisualObj;
 333                 aFatherSObj = aFatherSObj->GetFather();
 334                 if(!aFatherSObj) return aVisualObj;
 335                 CORBA::String_var anEntry = aFatherSObj->GetID().c_str();
 336                 TVisualObjPtr aVisObj = GetVisualObj(theStudyId,anEntry.in());
 337                 if(SMESH_MeshObj* aMeshObj = dynamic_cast<SMESH_MeshObj*>(aVisObj.get())){
 338                   aVisualObj.reset(new SMESH_subMeshObj(aSubMesh,aMeshObj));
 339                   TVisualObjCont::value_type aValue(aKey,aVisualObj);
 340                   VISUAL_OBJ_CONT.insert(aValue);
 341                 }
 342               }
 343             }
 344           }
 345         }
 346       }
 347     }catch(...){
 348       INFOS("GetMeshObj - There is no SMESH_Mesh object for the SALOMEDS::Strudy and Entry!!!");
 349       return TVisualObjPtr();
 350     }
 351     // Update object
 352     bool objModified = false;
 353     if ( aVisualObj ) {
 354       try {
 355 #if (OCC_VERSION_MAJOR << 16 | OCC_VERSION_MINOR << 8 | OCC_VERSION_MAINTENANCE) > 0x060100
 356         OCC_CATCH_SIGNALS;
 357 #endif
 358         //MESSAGE("GetVisualObj");
 359         if (nulData)
 360                 objModified = aVisualObj->NulData();
 361         else
 362           objModified = aVisualObj->Update();
 363       }
 364       catch (...) {
 365 #ifdef _DEBUG_
 366         MESSAGE ( "Exception in SMESHGUI_VTKUtils::GetVisualObj()" );
 367 #endif
 368         RemoveVisualObjectWithActors( theEntry ); // remove this object
 369         OnVisuException();
 370         aVisualObj.reset();
 371       }
 372     }
 373
 374     if ( objModified ) {
 375       // PAL16631. Mesurements showed that to show aVisualObj in SHADING(default) mode,
 376       // ~5 times more memory is used than it occupies.
 377       // Warn the user if there is less free memory than 30 sizes of a grid
 378       // TODO: estimate memory usage in other modes and take current mode into account
 379       int freeMB = SMDS_Mesh::CheckMemory(true);
 380       int usedMB = aVisualObj->GetUnstructuredGrid()->GetActualMemorySize() / 1024;
 381       MESSAGE("SMESHGUI_VTKUtils::GetVisualObj(), freeMB=" << freeMB << ", usedMB=" <<usedMB);
 382       if ( freeMB > 0 && usedMB * 5 > freeMB ) {
 383        bool continu = false;
 384        if ( usedMB * 3 > freeMB )
 385          // even dont try to show
 386          SUIT_MessageBox::warning(SMESHGUI::desktop(), QObject::tr("SMESH_WRN_WARNING"),
 387                                   QObject::tr("SMESH_NO_MESH_VISUALIZATION"));
 388        else
 389          // there is a chance to succeed
 390          continu = SUIT_MessageBox::warning
 391            (SMESHGUI::desktop(),
 392             QObject::tr("SMESH_WRN_WARNING"),
 393             QObject::tr("SMESH_CONTINUE_MESH_VISUALIZATION"),
 394             SUIT_MessageBox::Yes | SUIT_MessageBox::No,
 395             SUIT_MessageBox::Yes ) == SUIT_MessageBox::Yes;
 396        if ( !continu ) {
 397          // remove the corresponding actors from all views
 398          RemoveVisualObjectWithActors( theEntry );
 399          aVisualObj.reset();
 400        }
 401       }
 402     }
 403
 404     return aVisualObj;
 405   }
 406
 407
 408   /*! Return active view window, if it instantiates SVTK_ViewWindow class,
 409    *  overwise find or create corresponding view window, make it active and return it.
 410    *  \note Active VVTK_ViewWindow can be returned, because it inherits SVTK_ViewWindow.
 411    */
 412   SVTK_ViewWindow* GetViewWindow (const SalomeApp_Module* theModule,
 413                                   bool createIfNotFound)
 414   {
 415     SalomeApp_Application* anApp;
 416     if (theModule)
 417       anApp = theModule->getApp();
 418     else
 419       anApp = dynamic_cast<SalomeApp_Application*>
 420         (SUIT_Session::session()->activeApplication());
 421
 422     if (anApp) {
 423       if (SVTK_ViewWindow* aView = dynamic_cast<SVTK_ViewWindow*>(anApp->desktop()->activeWindow()))
 424         return aView;
 425
 426       SUIT_ViewManager* aViewManager =
 427         anApp->getViewManager(SVTK_Viewer::Type(), createIfNotFound);
 428       if (aViewManager) {
 429         if (SUIT_ViewWindow* aViewWindow = aViewManager->getActiveView()) {
 430           if (SVTK_ViewWindow* aView = dynamic_cast<SVTK_ViewWindow*>(aViewWindow)) {
 431             aViewWindow->raise();
 432             aViewWindow->setFocus();
 433             return aView;
 434           }
 435         }
 436       }
 437     }
 438     return NULL;
 439   }
 440
 441   SVTK_ViewWindow* FindVtkViewWindow (SUIT_ViewManager* theMgr,
 442                                       SUIT_ViewWindow * theWindow)
 443   {
 444     if( !theMgr )
 445       return NULL;
 446
 447     QVector<SUIT_ViewWindow*> views = theMgr->getViews();
 448     if( views.contains( theWindow ) )
 449       return GetVtkViewWindow( theWindow );
 450     else
 451       return NULL;
 452   }
 453
 454   SVTK_ViewWindow* GetVtkViewWindow(SUIT_ViewWindow* theWindow){
 455     return dynamic_cast<SVTK_ViewWindow*>(theWindow);
 456   }
 457
 458 /*  SUIT_ViewWindow* GetActiveWindow()
 459   {
 460     SalomeApp_Application* app = dynamic_cast<SalomeApp_Application*>( SUIT_Session::session()->activeApplication() );
 461     if( !app )
 462       return NULL;
 463     SUIT_ViewManager* mgr = app->activeViewManager();
 464     if( mgr )
 465       return mgr->getActiveView();
 466     else
 467       return NULL;
 468   }*/
 469
 470   SVTK_ViewWindow* GetCurrentVtkView(){
 471     return GetVtkViewWindow( GetActiveWindow() );
 472   }
 473
 474
 475   void RepaintCurrentView()
 476   {
 477     if (SVTK_ViewWindow* wnd = GetCurrentVtkView())
 478     {
 479       try {
 480 #if (OCC_VERSION_MAJOR << 16 | OCC_VERSION_MINOR << 8 | OCC_VERSION_MAINTENANCE) > 0x060100
 481         OCC_CATCH_SIGNALS;
 482 #endif
 483         wnd->getRenderer()->Render();
 484         wnd->Repaint(false);
 485       }
 486       catch (...) {
 487 #ifdef _DEBUG_
 488         MESSAGE ( "Exception in SMESHGUI_VTKUtils::RepaintCurrentView()" );
 489 #endif
 490         OnVisuException();
 491       }
 492     }
 493   }
 494
 495   void RepaintViewWindow(SVTK_ViewWindow* theWindow)
 496   {
 497     try {
 498 #if (OCC_VERSION_MAJOR << 16 | OCC_VERSION_MINOR << 8 | OCC_VERSION_MAINTENANCE) > 0x060100
 499       OCC_CATCH_SIGNALS;
 500 #endif
 501       theWindow->getRenderer()->Render();
 502       theWindow->Repaint();
 503     }
 504     catch (...) {
 505 #ifdef _DEBUG_
 506       MESSAGE ( "Exception in SMESHGUI_VTKUtils::RepaintViewWindow(SVTK_ViewWindow*)" );
 507 #endif
 508       OnVisuException();
 509     }
 510   }
 511
 512   void RenderViewWindow(SVTK_ViewWindow* theWindow)
 513   {
 514     try {
 515 #if (OCC_VERSION_MAJOR << 16 | OCC_VERSION_MINOR << 8 | OCC_VERSION_MAINTENANCE) > 0x060100
 516       OCC_CATCH_SIGNALS;
 517 #endif
 518       theWindow->getRenderer()->Render();
 519       theWindow->Repaint();
 520     }
 521     catch (...) {
 522 #ifdef _DEBUG_
 523       MESSAGE ( "Exception in SMESHGUI_VTKUtils::RenderViewWindow(SVTK_ViewWindow*)" );
 524 #endif
 525       OnVisuException();
 526     }
 527   }
 528
 529   void FitAll(){
 530     if(SVTK_ViewWindow* wnd = GetCurrentVtkView() ){
 531       try {
 532 #if (OCC_VERSION_MAJOR << 16 | OCC_VERSION_MINOR << 8 | OCC_VERSION_MAINTENANCE) > 0x060100
 533         OCC_CATCH_SIGNALS;
 534 #endif
 535         wnd->onFitAll();
 536         wnd->Repaint();
 537       }
 538       catch (...) {
 539 #ifdef _DEBUG_
 540         MESSAGE ( "Exception in SMESHGUI_VTKUtils::FitAll()" );
 541 #endif
 542         OnVisuException();
 543       }
 544     }
 545   }
 546
 547
 548   SMESH_Actor* FindActorByEntry(SUIT_ViewWindow *theWindow,
 549                                 const char* theEntry)
 550   {
 551     if(SVTK_ViewWindow* aViewWindow = GetVtkViewWindow(theWindow)){
 552       vtkRenderer *aRenderer = aViewWindow->getRenderer();
 553       VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
 554       vtkActorCollection *aCollection = aCopy.GetActors();
 555       aCollection->InitTraversal();
 556       while(vtkActor *anAct = aCollection->GetNextActor()){
 557         if(SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>(anAct)){
 558           if(anActor->hasIO()){
 559             Handle(SALOME_InteractiveObject) anIO = anActor->getIO();
 560             if(anIO->hasEntry() && strcmp(anIO->getEntry(),theEntry) == 0){
 561               return anActor;
 562             }
 563           }
 564         }
 565       }
 566     }
 567     return NULL;
 568   }
 569
 570
 571   SMESH_Actor* FindActorByEntry(const char* theEntry){
 572     return FindActorByEntry(GetActiveWindow(),theEntry);
 573   }
 574
 575
 576   SMESH_Actor* FindActorByObject(CORBA::Object_ptr theObject){
 577     SalomeApp_Application* app = dynamic_cast<SalomeApp_Application*>( SUIT_Session::session()->activeApplication() );
 578     if( !app )
 579       return NULL;
 580
 581     if(!CORBA::is_nil(theObject)){
 582       _PTR(Study) aStudy = GetActiveStudyDocument();
 583       CORBA::String_var anIOR = app->orb()->object_to_string( theObject );
 584       _PTR(SObject) aSObject = aStudy->FindObjectIOR(anIOR.in());
 585       if(aSObject){
 586         CORBA::String_var anEntry = aSObject->GetID().c_str();
 587         return FindActorByEntry(anEntry.in());
 588       }
 589     }
 590     return NULL;
 591   }
 592
 593
 594   SMESH_Actor* CreateActor(_PTR(Study) theStudy,
 595                            const char* theEntry,
 596                            int theIsClear)
 597   {
 598     SMESH_Actor *anActor = NULL;
 599     CORBA::Long anId = theStudy->StudyId();
 600     if(TVisualObjPtr aVisualObj = GetVisualObj(anId,theEntry)){
 601       _PTR(SObject) aSObj = theStudy->FindObjectID(theEntry);
 602       if(aSObj){
 603         _PTR(GenericAttribute) anAttr;
 604         if(aSObj->FindAttribute(anAttr,"AttributeName")){
 605           _PTR(AttributeName) aName = anAttr;
 606           std::string aNameVal = aName->Value();
 607           anActor = SMESH_Actor::New(aVisualObj,theEntry,aNameVal.c_str(),theIsClear);
 608         }
 609
 610         SMESH::SMESH_GroupBase_var aGroup = SMESH::SMESH_GroupBase::_narrow( SMESH::SObjectToObject( aSObj ));
 611         if(!CORBA::is_nil(aGroup) && anActor)
 612         {
 613           QColor c;
 614           int deltaF, deltaV;
 615           SMESH::GetColor( "SMESH", "fill_color", c, deltaF, "0,170,255|-100"  );
 616           SMESH::GetColor( "SMESH", "volume_color", c, deltaV, "255,0,170|-100"  );
 617           c = SMESH::GetColor( "SMESH", "default_grp_color", c );
 618           SALOMEDS::Color aColor = aGroup->GetColor();
 619           if( !( aColor.R > 0 || aColor.G > 0 || aColor.B > 0 ))
 620           {
 621             aColor.R = c.redF();
 622             aColor.G = c.greenF();
 623             aColor.B = c.blueF();
 624             aGroup->SetColor( aColor );
 625           }
 626           if( aGroup->GetType() == SMESH::NODE )
 627             anActor->SetNodeColor( aColor.R, aColor.G, aColor.B );
 628           else if( aGroup->GetType() == SMESH::EDGE )
 629             anActor->SetEdgeColor( aColor.R, aColor.G, aColor.B );
 630           else if( aGroup->GetType() == SMESH::ELEM0D )
 631             anActor->Set0DColor( aColor.R, aColor.G, aColor.B );
 632           else if( aGroup->GetType() == SMESH::BALL )
 633             anActor->SetBallColor( aColor.R, aColor.G, aColor.B );
 634           else if( aGroup->GetType() == SMESH::VOLUME )
 635             anActor->SetVolumeColor( aColor.R, aColor.G, aColor.B, deltaV );
 636           else
 637             anActor->SetSufaceColor( aColor.R, aColor.G, aColor.B, deltaF );
 638         }
 639       }
 640     }
 641     MESSAGE("CreateActor " << anActor);
 642     if( anActor )
 643       if( SMESHGUI* aSMESHGUI = SMESHGUI::GetSMESHGUI() )
 644         aSMESHGUI->addActorAsObserver( anActor );
 645     return anActor;
 646   }
 647
 648
 649   void DisplayActor( SUIT_ViewWindow *theWnd, SMESH_Actor* theActor){
 650     if(SVTK_ViewWindow* vtkWnd = GetVtkViewWindow(theWnd)){
 651       try {
 652 #if (OCC_VERSION_MAJOR << 16 | OCC_VERSION_MINOR << 8 | OCC_VERSION_MAINTENANCE) > 0x060100
 653         OCC_CATCH_SIGNALS;
 654 #endif
 655         MESSAGE("DisplayActor " << theActor);
 656         vtkWnd->AddActor(theActor);
 657         vtkWnd->Repaint();
 658       }
 659       catch (...) {
 660 #ifdef _DEBUG_
 661         MESSAGE ( "Exception in SMESHGUI_VTKUtils::DisplayActor()" );
 662 #endif
 663         OnVisuException();
 664       }
 665     }
 666   }
 667
 668
 669   void RemoveActor( SUIT_ViewWindow *theWnd, SMESH_Actor* theActor){
 670     if(SVTK_ViewWindow* vtkWnd = GetVtkViewWindow(theWnd)){
 671         MESSAGE("RemoveActor " << theActor);
 672       vtkWnd->RemoveActor(theActor);
 673       if(theActor->hasIO()){
 674         Handle(SALOME_InteractiveObject) anIO = theActor->getIO();
 675         if(anIO->hasEntry()){
 676           std::string anEntry = anIO->getEntry();
 677           SalomeApp_Study* aStudy = dynamic_cast<SalomeApp_Study*>( vtkWnd->getViewManager()->study() );
 678           int aStudyId = aStudy->id();
 679           TVisualObjCont::key_type aKey(aStudyId,anEntry);
 680           VISUAL_OBJ_CONT.erase(aKey);
 681         }
 682       }
 683       theActor->Delete();
 684       vtkWnd->Repaint();
 685     }
 686   }
 687
 688   //================================================================================
 689   /*!
 690    * \brief Return true if there are no SMESH actors in a view
 691    */
 692   //================================================================================
 693
 694   bool noSmeshActors(SUIT_ViewWindow *theWnd)
 695   {
 696     if(SVTK_ViewWindow* aViewWindow = GetVtkViewWindow(theWnd)) {
 697       vtkRenderer *aRenderer = aViewWindow->getRenderer();
 698       VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
 699       vtkActorCollection *aCollection = aCopy.GetActors();
 700       aCollection->InitTraversal();
 701       while(vtkActor *anAct = aCollection->GetNextActor())
 702         if(dynamic_cast<SMESH_Actor*>(anAct))
 703           return false;
 704     }
 705     return true;
 706   }
 707
 708   bool UpdateView(SUIT_ViewWindow *theWnd, EDisplaing theAction, const char* theEntry)
 709   {
 710         //MESSAGE("UpdateView");
 711     bool OK = false;
 712     SVTK_ViewWindow* aViewWnd = GetVtkViewWindow(theWnd);
 713     if (!aViewWnd)
 714       return OK;
 715
 716     SVTK_ViewWindow* vtkWnd = GetVtkViewWindow(theWnd);
 717     if (!vtkWnd)
 718       return OK;
 719
 720     SalomeApp_Study* aStudy = dynamic_cast<SalomeApp_Study*>( vtkWnd->getViewManager()->study() );
 721
 722     if (!aStudy)
 723       return OK;
 724
 725     {
 726       OK = true;
 727       vtkRenderer *aRenderer = aViewWnd->getRenderer();
 728       VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
 729       vtkActorCollection *aCollection = aCopy.GetActors();
 730       aCollection->InitTraversal();
 731
 732       switch (theAction) {
 733       case eDisplayAll: {
 734         while (vtkActor *anAct = aCollection->GetNextActor()) {
 735           if (SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>(anAct)) {
 736                 MESSAGE("--- display " << anActor);
 737             anActor->SetVisibility(true);
 738
 739             if(anActor->hasIO()){
 740               Handle(SALOME_InteractiveObject) anIO = anActor->getIO();
 741               if(anIO->hasEntry()){
 742                 aStudy->setVisibilityState(anIO->getEntry(), Qtx::ShownState);
 743               }
 744             }
 745           }
 746         }
 747         break;
 748       }
 749       case eDisplayOnly:
 750       case eEraseAll: {
 751         //MESSAGE("---case eDisplayOnly");
 752         while (vtkActor *anAct = aCollection->GetNextActor()) {
 753           if (SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>(anAct)) {
 754                 //MESSAGE("--- erase " << anActor);
 755             anActor->SetVisibility(false);
 756           }
 757         }
 758         aStudy->setVisibilityStateForAll(Qtx::HiddenState);
 759       }
 760       default: {
 761         if (SMESH_Actor *anActor = FindActorByEntry(theWnd,theEntry)) {
 762           switch (theAction) {
 763             case eDisplay:
 764             case eDisplayOnly:
 765                 //MESSAGE("--- display " << anActor);
 766               anActor->Update();
 767               anActor->SetVisibility(true);
 768               if (theAction == eDisplayOnly) aRenderer->ResetCameraClippingRange();
 769               aStudy->setVisibilityState(theEntry, Qtx::ShownState);
 770               break;
 771             case eErase:
 772                 //MESSAGE("--- erase " << anActor);
 773               anActor->SetVisibility(false);
 774               aStudy->setVisibilityState(theEntry, Qtx::HiddenState);
 775               break;
 776             default:;
 777           }
 778         } else {
 779           switch (theAction) {
 780           case eDisplay:
 781           case eDisplayOnly:
 782             {
 783                 //MESSAGE("---");
 784               SalomeApp_Study* aStudy = dynamic_cast<SalomeApp_Study*>(theWnd->getViewManager()->study());
 785               _PTR(Study) aDocument = aStudy->studyDS();
 786               // Pass non-visual objects (hypotheses, etc.), return true in this case
 787               CORBA::Long anId = aDocument->StudyId();
 788               TVisualObjPtr aVisualObj;
 789               if ( (aVisualObj = GetVisualObj(anId,theEntry)) && aVisualObj->IsValid())
 790               {
 791                 if ((anActor = CreateActor(aDocument,theEntry,true))) {
 792                   bool needFitAll = noSmeshActors(theWnd); // fit for the first object only
 793                   DisplayActor(theWnd,anActor);
 794                   aStudy->setVisibilityState(theEntry, Qtx::ShownState);
 795                   // FitAll(); - PAL16770(Display of a group performs an automatic fit all)
 796                   if (needFitAll) FitAll();
 797                 } else {
 798                   OK = false;
 799                 }
 800               }
 801               break;
 802             }
 803           default:;
 804           }
 805         }
 806       }
 807       }
 808     }
 809     return OK;
 810   }
 811
 812
 813   bool UpdateView(EDisplaing theAction, const char* theEntry) {
 814         //MESSAGE("UpdateView");
 815     SalomeApp_Study* aStudy = dynamic_cast< SalomeApp_Study* >( GetActiveStudy() );
 816     SalomeApp_Application* app = dynamic_cast< SalomeApp_Application* >( aStudy->application() );
 817     if ( SUIT_ViewManager* vm = app->activeViewManager() )
 818     {
 819       SUIT_ViewWindow *aWnd = vm->getActiveView();
 820       return UpdateView(aWnd,theAction,theEntry);
 821     }
 822     return false;
 823   }
 824
 825   void UpdateView(){
 826     if ( SVTK_ViewWindow* aWnd = SMESH::GetCurrentVtkView()) {
 827       LightApp_SelectionMgr* mgr = SMESHGUI::selectionMgr();
 828       SALOME_ListIO selected; mgr->selectedObjects( selected );
 829
 830       if( selected.Extent() == 0){
 831         vtkRenderer* aRenderer = aWnd->getRenderer();
 832         VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
 833         vtkActorCollection *aCollection = aCopy.GetActors();
 834         aCollection->InitTraversal();
 835         while(vtkActor *anAct = aCollection->GetNextActor()){
 836           if(SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>(anAct)){
 837             if(anActor->hasIO())
 838               if (!Update(anActor->getIO(),anActor->GetVisibility()))
 839                 break; // avoid multiple warinings if visu failed
 840           }
 841         }
 842       }else{
 843         SALOME_ListIteratorOfListIO anIter( selected );
 844         for( ; anIter.More(); anIter.Next()){
 845           Handle(SALOME_InteractiveObject) anIO = anIter.Value();
 846           if ( !Update(anIO,true) )
 847             break; // avoid multiple warinings if visu failed
 848         }
 849       }
 850       RepaintCurrentView();
 851     }
 852   }
 853
 854
 855   bool Update(const Handle(SALOME_InteractiveObject)& theIO, bool theDisplay)
 856   {
 857     //MESSAGE("Update");
 858     _PTR(Study) aStudy = GetActiveStudyDocument();
 859     CORBA::Long anId = aStudy->StudyId();
 860     if ( TVisualObjPtr aVisualObj = SMESH::GetVisualObj(anId,theIO->getEntry())) {
 861       if ( theDisplay )
 862         UpdateView(SMESH::eDisplay,theIO->getEntry());
 863       return true;
 864     }
 865     return false;
 866   }
 867
 868   bool UpdateNulData(const Handle(SALOME_InteractiveObject)& theIO, bool theDisplay)
 869   {
 870     //MESSAGE("UpdateNulData");
 871     _PTR(Study) aStudy = GetActiveStudyDocument();
 872     CORBA::Long anId = aStudy->StudyId();
 873     if ( TVisualObjPtr aVisualObj = SMESH::GetVisualObj(anId,theIO->getEntry(), true)) {
 874       if ( theDisplay )
 875         UpdateView(SMESH::eDisplay,theIO->getEntry());
 876       return true;
 877     }
 878     return false;
 879   }
 880
 881   void UpdateSelectionProp( SMESHGUI* theModule )
 882   {
 883     if( !theModule )
 884       return;
 885
 886     SalomeApp_Application* app = dynamic_cast< SalomeApp_Application* >( theModule->application() );
 887     if( !app )
 888     {
 889       MESSAGE( "UpdateSelectionProp: Application is null" );
 890       return;
 891     }
 892
 893     SUIT_ViewManager* vm = app->activeViewManager();
 894     if( !vm )
 895     {
 896       MESSAGE( "UpdateSelectionProp: View manager is null" );
 897       return;
 898     }
 899
 900     QVector<SUIT_ViewWindow*> views = vm->getViews();
 901
 902     SUIT_ResourceMgr* mgr = SMESH::GetResourceMgr( theModule );
 903     if( !mgr )
 904     {
 905       MESSAGE( "UpdateSelectionProp: Resource manager is null" );
 906       return;
 907     }
 908
 909     QColor
 910       aHiColor = mgr->colorValue( "SMESH", "selection_object_color", Qt::white ),
 911       aSelColor = mgr->colorValue( "SMESH", "selection_element_color", Qt::yellow ),
 912       aPreColor = mgr->colorValue( "SMESH", "highlight_color", Qt::cyan );
 913
 914     int aElem0DSize = mgr->integerValue("SMESH", "elem0d_size", 5);
 915     // int aBallSize   = mgr->integerValue("SMESH", "ball_elem_size", 5);
 916     int aLineWidth  = mgr->integerValue("SMESH", "element_width", 1);
 917     int maxSize = aElem0DSize;
 918     if (aElem0DSize > maxSize) maxSize = aElem0DSize;
 919     if (aLineWidth > maxSize) maxSize = aLineWidth;
 920     //  if (aBallSize > maxSize) maxSize = aBallSize;
 921
 922     double
 923       SP1 = mgr->doubleValue( "SMESH", "selection_precision_node", 0.025 ),
 924       SP2 = mgr->doubleValue( "SMESH", "selection_precision_element", 0.001 ),
 925       SP3 = mgr->doubleValue( "SMESH", "selection_precision_object", 0.025 );
 926
 927     for ( int i=0, n=views.count(); i<n; i++ )
 928     {
 929       // update VTK viewer properties
 930       if ( SVTK_ViewWindow* aVtkView = GetVtkViewWindow( views[i] ))
 931       {
 932         // mesh element selection
 933         aVtkView->SetSelectionProp(aSelColor.red()/255.,
 934                                    aSelColor.green()/255.,
 935                                    aSelColor.blue()/255.);
 936         // tolerances
 937         aVtkView->SetSelectionTolerance(SP1, SP2, SP3);
 938
 939         // pre-selection
 940         aVtkView->SetPreselectionProp(aPreColor.red()/255.,
 941                                       aPreColor.green()/255.,
 942                                       aPreColor.blue()/255.);
 943         // update actors
 944         vtkRenderer* aRenderer = aVtkView->getRenderer();
 945         VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
 946         vtkActorCollection *aCollection = aCopy.GetActors();
 947         aCollection->InitTraversal();
 948         while ( vtkActor *anAct = aCollection->GetNextActor() ) {
 949           if ( SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>(anAct) ) {
 950             anActor->SetHighlightColor(aHiColor.red()/255.,
 951                                        aHiColor.green()/255.,
 952                                        aHiColor.blue()/255.);
 953             anActor->SetPreHighlightColor(aPreColor.red()/255.,
 954                                           aPreColor.green()/255.,
 955                                           aPreColor.blue()/255.);
 956           }
 957         }
 958       }
 959     }
 960   }
 961
 962
 963   void UpdateFontProp( SMESHGUI* theModule )
 964   {
 965     if ( !theModule ) return;
 966
 967     SalomeApp_Application* app = dynamic_cast< SalomeApp_Application* >( theModule->application() );
 968     if ( !app ) return;
 969
 970     SUIT_ResourceMgr* mgr = SMESH::GetResourceMgr( theModule );
 971     if ( !mgr ) return;
 972     //
 973     double anRGBNd[3] = {1,1,1};
 974     SMESH::GetColor( "SMESH", "numbering_node_color", anRGBNd[0], anRGBNd[1], anRGBNd[2], QColor( 255, 255, 255 ) );
 975     int aSizeNd = 10;
 976     SMESH::LabelFont aFamilyNd = SMESH::FntTimes;
 977     bool aBoldNd    = true;
 978     bool anItalicNd = false;
 979     bool aShadowNd  = false;
 980
 981     if ( mgr->hasValue( "SMESH", "numbering_node_font" ) ) {
 982       QFont f = mgr->fontValue( "SMESH", "numbering_node_font" );
 983       if ( f.family()      == "Arial" )   aFamilyNd = SMESH::FntArial;
 984       else if ( f.family() == "Courier" ) aFamilyNd = SMESH::FntCourier;
 985       else if ( f.family() == "Times" )   aFamilyNd = SMESH::FntTimes;
 986       aBoldNd    = f.bold();
 987       anItalicNd = f.italic();
 988       aShadowNd  = f.overline();
 989       aSizeNd    = f.pointSize();
 990     }
 991     //
 992     double anRGBEl[3] = {0,1,0};
 993     SMESH::GetColor( "SMESH", "numbering_elem_color", anRGBEl[0], anRGBEl[1], anRGBEl[2], QColor( 0, 255, 0 ) );
 994     int aSizeEl = 12;
 995     SMESH::LabelFont aFamilyEl = SMESH::FntTimes;
 996     bool aBoldEl    = true;
 997     bool anItalicEl = false;
 998     bool aShadowEl  = false;
 999
1000     if ( mgr->hasValue( "SMESH", "numbering_elem_font" ) ) {
1001       QFont f = mgr->fontValue( "SMESH", "numbering_elem_font" );
1002
1003       if ( f.family()      == "Arial" )   aFamilyEl = SMESH::FntArial;
1004       else if ( f.family() == "Courier" ) aFamilyEl = SMESH::FntCourier;
1005       else if ( f.family() == "Times" )   aFamilyEl = SMESH::FntTimes;
1006       aBoldEl    = f.bold();
1007       anItalicEl = f.italic();
1008       aShadowEl  = f.overline();
1009       aSizeEl    = f.pointSize();
1010     }
1011     //
1012     ViewManagerList vmList;
1013     app->viewManagers( SVTK_Viewer::Type(), vmList );
1014     foreach ( SUIT_ViewManager* vm, vmList ) {
1015       QVector<SUIT_ViewWindow*> views = vm->getViews();
1016       foreach ( SUIT_ViewWindow* vw, views ) {
1017         // update VTK viewer properties
1018         if ( SVTK_ViewWindow* aVtkView = GetVtkViewWindow( vw ) ) {
1019           // update actors
1020           vtkRenderer* aRenderer = aVtkView->getRenderer();
1021           VTK::ActorCollectionCopy aCopy( aRenderer->GetActors() );
1022           vtkActorCollection* aCollection = aCopy.GetActors();
1023           aCollection->InitTraversal();
1024           while ( vtkActor* anAct = aCollection->GetNextActor() ) {
1025             if ( SMESH_NodeLabelActor* anActor = dynamic_cast< SMESH_NodeLabelActor* >( anAct ) ) {
1026               anActor->SetFontProperties( aFamilyNd, aSizeNd, aBoldNd, anItalicNd, aShadowNd, anRGBNd[0], anRGBNd[1], anRGBNd[2] );
1027             }
1028             else if ( SMESH_CellLabelActor* anActor = dynamic_cast< SMESH_CellLabelActor* >( anAct ) ) {
1029               anActor->SetFontProperties( aFamilyEl, aSizeEl, aBoldEl, anItalicEl, aShadowEl, anRGBEl[0], anRGBEl[1], anRGBEl[2] );
1030             }
1031           }
1032           aVtkView->Repaint( false );
1033         }
1034       }
1035     }
1036   }
1037
1038   //----------------------------------------------------------------------------
1039   SVTK_Selector*
1040   GetSelector(SUIT_ViewWindow *theWindow)
1041   {
1042     if(SVTK_ViewWindow* aWnd = GetVtkViewWindow(theWindow))
1043       return aWnd->GetSelector();
1044
1045     return NULL;
1046   }
1047
1048   void SetFilter(const Handle(VTKViewer_Filter)& theFilter,
1049                  SVTK_Selector* theSelector)
1050   {
1051     if (theSelector)
1052       theSelector->SetFilter(theFilter);
1053   }
1054
1055   Handle(VTKViewer_Filter) GetFilter(int theId, SVTK_Selector* theSelector)
1056   {
1057     return theSelector->GetFilter(theId);
1058   }
1059
1060   bool IsFilterPresent(int theId, SVTK_Selector* theSelector)
1061   {
1062     return theSelector->IsFilterPresent(theId);
1063   }
1064
1065   void RemoveFilter(int theId, SVTK_Selector* theSelector)
1066   {
1067     theSelector->RemoveFilter(theId);
1068   }
1069
1070   void RemoveFilters(SVTK_Selector* theSelector)
1071   {
1072     for ( int id = SMESH::NodeFilter; theSelector && id < SMESH::LastFilter; id++ )
1073       theSelector->RemoveFilter( id );
1074   }
1075
1076   bool IsValid(SALOME_Actor* theActor, int theCellId,
1077                SVTK_Selector* theSelector)
1078   {
1079     return theSelector->IsValid(theActor,theCellId);
1080   }
1081
1082
1083   //----------------------------------------------------------------------------
1084   void SetPointRepresentation(bool theIsVisible)
1085   {
1086     if ( SVTK_ViewWindow* aViewWindow = GetCurrentVtkView() ) {
1087       vtkRenderer *aRenderer = aViewWindow->getRenderer();
1088       VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
1089       vtkActorCollection *aCollection = aCopy.GetActors();
1090       aCollection->InitTraversal();
1091       while(vtkActor *anAct = aCollection->GetNextActor()){
1092         if(SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>(anAct)){
1093           if(anActor->GetVisibility()){
1094             anActor->SetPointRepresentation(theIsVisible);
1095           }
1096         }
1097       }
1098       RepaintCurrentView();
1099     }
1100   }
1101
1102
1103   void SetPickable(SMESH_Actor* theActor)
1104   {
1105     if ( SVTK_ViewWindow* aWnd = GetCurrentVtkView() ) {
1106       int anIsAllPickable = (theActor == NULL);
1107       vtkRenderer *aRenderer = aWnd->getRenderer();
1108       VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
1109       vtkActorCollection *aCollection = aCopy.GetActors();
1110       aCollection->InitTraversal();
1111       while(vtkActor *anAct = aCollection->GetNextActor()){
1112         if(SALOME_Actor *anActor = dynamic_cast<SALOME_Actor*>(anAct)){
1113           if(anActor->GetVisibility()){
1114             anActor->SetPickable(anIsAllPickable);
1115           }
1116         }
1117       }
1118       if(theActor)
1119         theActor->SetPickable(!anIsAllPickable);
1120       RepaintCurrentView();
1121     }
1122   }
1123
1124
1125   //----------------------------------------------------------------------------
1126   int GetNameOfSelectedNodes(SVTK_Selector*                          theSelector,
1127                              const Handle(SALOME_InteractiveObject)& theIO,
1128                              QString&                                theName)
1129   {
1130     theName = "";
1131     TColStd_IndexedMapOfInteger aMapIndex;
1132     theSelector->GetIndex(theIO,aMapIndex);
1133
1134     for(int i = 1; i <= aMapIndex.Extent(); i++)
1135       theName += QString(" %1").arg(aMapIndex(i));
1136
1137     return aMapIndex.Extent();
1138   }
1139
1140   int GetNameOfSelectedElements(SVTK_Selector* theSelector,
1141                                 const Handle(SALOME_InteractiveObject)& theIO,
1142                                 QString& theName)
1143   {
1144     theName = "";
1145     TColStd_IndexedMapOfInteger aMapIndex;
1146     theSelector->GetIndex(theIO,aMapIndex);
1147
1148     typedef std::set<int> TIdContainer;
1149     TIdContainer anIdContainer;
1150     for( int i = 1; i <= aMapIndex.Extent(); i++)
1151       anIdContainer.insert(aMapIndex(i));
1152
1153     TIdContainer::const_iterator anIter = anIdContainer.begin();
1154     for( ; anIter != anIdContainer.end(); anIter++)
1155       theName += QString(" %1").arg(*anIter);
1156
1157     return aMapIndex.Extent();
1158   }
1159
1160
1161   int GetEdgeNodes(SVTK_Selector* theSelector,
1162                    const TVisualObjPtr& theVisualObject,
1163                    int& theId1,
1164                    int& theId2)
1165   {
1166     const SALOME_ListIO& selected = theSelector->StoredIObjects();
1167
1168     if ( selected.Extent() != 1 )
1169       return -1;
1170
1171     Handle(SALOME_InteractiveObject) anIO = selected.First();
1172     if ( anIO.IsNull() || !anIO->hasEntry() )
1173       return -1;
1174
1175     TColStd_IndexedMapOfInteger aMapIndex;
1176     theSelector->GetIndex( anIO, aMapIndex );
1177     if ( aMapIndex.Extent() != 2 )
1178       return -1;
1179
1180     int anObjId = -1, anEdgeNum = -1;
1181     for ( int i = 1; i <= aMapIndex.Extent(); i++ ) {
1182       int aVal = aMapIndex( i );
1183       if ( aVal > 0 )
1184         anObjId = aVal;
1185       else
1186         anEdgeNum = abs( aVal ) - 1;
1187     }
1188
1189     if ( anObjId == -1 || anEdgeNum == -1 )
1190       return -1;
1191
1192     return theVisualObject->GetEdgeNodes( anObjId, anEdgeNum, theId1, theId2 ) ? 1 : -1;
1193   }
1194
1195   //----------------------------------------------------------------------------
1196   int GetNameOfSelectedNodes(LightApp_SelectionMgr *theMgr,
1197                              const Handle(SALOME_InteractiveObject)& theIO,
1198                              QString& theName)
1199   {
1200     theName = "";
1201     if(theIO->hasEntry()){
1202       if(FindActorByEntry(theIO->getEntry())){
1203         TColStd_IndexedMapOfInteger aMapIndex;
1204         theMgr->GetIndexes(theIO,aMapIndex);
1205         for(int i = 1; i <= aMapIndex.Extent(); i++){
1206           theName += QString(" %1").arg(aMapIndex(i));
1207         }
1208         return aMapIndex.Extent();
1209       }
1210     }
1211     return -1;
1212   }
1213
1214   int GetNameOfSelectedNodes(LightApp_SelectionMgr *theMgr, QString& theName)
1215   {
1216     theName = "";
1217     SALOME_ListIO selected; theMgr->selectedObjects( selected );
1218     if(selected.Extent() == 1){
1219       Handle(SALOME_InteractiveObject) anIO = selected.First();
1220       return GetNameOfSelectedNodes(theMgr,anIO,theName);
1221     }
1222     return -1;
1223   }
1224
1225
1226   int GetNameOfSelectedElements(LightApp_SelectionMgr *                 theMgr,
1227                                 const Handle(SALOME_InteractiveObject)& theIO,
1228                                 QString&                                theName)
1229   {
1230     theName = "";
1231     if(theIO->hasEntry()){
1232       if(FindActorByEntry(theIO->getEntry())){
1233         TColStd_IndexedMapOfInteger aMapIndex;
1234         theMgr->GetIndexes(theIO,aMapIndex);
1235         typedef std::set<int> TIdContainer;
1236         TIdContainer anIdContainer;
1237         for( int i = 1; i <= aMapIndex.Extent(); i++)
1238           anIdContainer.insert(aMapIndex(i));
1239         TIdContainer::const_iterator anIter = anIdContainer.begin();
1240         for( ; anIter != anIdContainer.end(); anIter++){
1241           theName += QString(" %1").arg(*anIter);
1242         }
1243         return aMapIndex.Extent();
1244       }
1245     }
1246     return -1;
1247   }
1248
1249
1250   int GetNameOfSelectedElements(LightApp_SelectionMgr *theMgr, QString& theName)
1251   {
1252     theName = "";
1253     SALOME_ListIO selected; theMgr->selectedObjects( selected );
1254
1255     if( selected.Extent() == 1){
1256       Handle(SALOME_InteractiveObject) anIO = selected.First();
1257       return GetNameOfSelectedElements(theMgr,anIO,theName);
1258     }
1259     return -1;
1260   }
1261
1262   int GetSelected(LightApp_SelectionMgr*       theMgr,
1263                   TColStd_IndexedMapOfInteger& theMap,
1264                   const bool                   theIsElement)
1265   {
1266     theMap.Clear();
1267     SALOME_ListIO selected; theMgr->selectedObjects( selected );
1268
1269     if ( selected.Extent() == 1 )
1270     {
1271       Handle(SALOME_InteractiveObject) anIO = selected.First();
1272       if ( anIO->hasEntry() ) {
1273         theMgr->GetIndexes( anIO, theMap );
1274       }
1275     }
1276     return theMap.Extent();
1277   }
1278
1279
1280   int GetEdgeNodes( LightApp_SelectionMgr* theMgr, int& theId1, int& theId2 )
1281   {
1282     SALOME_ListIO selected; theMgr->selectedObjects( selected );
1283
1284     if ( selected.Extent() != 1 )
1285       return -1;
1286
1287     Handle(SALOME_InteractiveObject) anIO = selected.First();
1288     if ( anIO.IsNull() || !anIO->hasEntry() )
1289       return -1;
1290
1291     SMESH_Actor *anActor = SMESH::FindActorByEntry( anIO->getEntry() );
1292     if ( anActor == 0 )
1293       return -1;
1294
1295     TColStd_IndexedMapOfInteger aMapIndex;
1296     theMgr->GetIndexes( anIO, aMapIndex );
1297     if ( aMapIndex.Extent() != 2 )
1298       return -1;
1299
1300     int anObjId = -1, anEdgeNum = -1;
1301     for ( int i = 1; i <= aMapIndex.Extent(); i++ ) {
1302       int aVal = aMapIndex( i );
1303       if ( aVal > 0 )
1304         anObjId = aVal;
1305       else
1306         anEdgeNum = abs( aVal );
1307     }
1308
1309     if ( anObjId == -1 || anEdgeNum == -1 )
1310       return -1;
1311
1312     return anActor->GetObject()->GetEdgeNodes( anObjId, anEdgeNum, theId1, theId2 ) ? 1 : -1;
1313   }
1314
1315   void SetControlsPrecision( const long theVal )
1316   {
1317     if( SVTK_ViewWindow* aWnd = SMESH::GetCurrentVtkView() )
1318     {
1319       vtkRenderer *aRenderer = aWnd->getRenderer();
1320       VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
1321       vtkActorCollection *aCollection = aCopy.GetActors();
1322       aCollection->InitTraversal();
1323
1324       while ( vtkActor *anAct = aCollection->GetNextActor())
1325       {
1326         if ( SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>( anAct ) )
1327         {
1328           anActor->SetControlsPrecision( theVal );
1329           anActor->SetControlMode( anActor->GetControlMode() );
1330         }
1331       }
1332
1333     }
1334   }
1335
1336   //----------------------------------------------------------------------------
1337   // internal function
1338   void ComputeBoundsParam( double theBounds[6],
1339                            double theDirection[3],
1340                            double theMinPnt[3],
1341                            double& theMaxBoundPrj,
1342                            double& theMinBoundPrj )
1343   {
1344     //Enlarge bounds in order to avoid conflicts of precision
1345     for(int i = 0; i < 6; i += 2){
1346       static double EPS = 1.0E-3;
1347       double aDelta = (theBounds[i+1] - theBounds[i])*EPS;
1348       theBounds[i] -= aDelta;
1349       theBounds[i+1] += aDelta;
1350     }
1351
1352     double aBoundPoints[8][3] = { {theBounds[0],theBounds[2],theBounds[4]},
1353                                   {theBounds[1],theBounds[2],theBounds[4]},
1354                                   {theBounds[0],theBounds[3],theBounds[4]},
1355                                   {theBounds[1],theBounds[3],theBounds[4]},
1356                                   {theBounds[0],theBounds[2],theBounds[5]},
1357                                   {theBounds[1],theBounds[2],theBounds[5]},
1358                                   {theBounds[0],theBounds[3],theBounds[5]},
1359                                   {theBounds[1],theBounds[3],theBounds[5]}};
1360
1361     int aMaxId = 0;
1362     theMaxBoundPrj = vtkMath::Dot(theDirection,aBoundPoints[aMaxId]);
1363     theMinBoundPrj = theMaxBoundPrj;
1364     for(int i = 1; i < 8; i++){
1365       double aTmp = vtkMath::Dot(theDirection,aBoundPoints[i]);
1366       if(theMaxBoundPrj < aTmp){
1367         theMaxBoundPrj = aTmp;
1368         aMaxId = i;
1369       }
1370       if(theMinBoundPrj > aTmp){
1371         theMinBoundPrj = aTmp;
1372       }
1373     }
1374     double *aMinPnt = aBoundPoints[aMaxId];
1375     theMinPnt[0] = aMinPnt[0];
1376     theMinPnt[1] = aMinPnt[1];
1377     theMinPnt[2] = aMinPnt[2];
1378   }
1379
1380   // internal function
1381   void DistanceToPosition( double theBounds[6],
1382                            double theDirection[3],
1383                            double theDist,
1384                            double thePos[3] )
1385   {
1386     double aMaxBoundPrj, aMinBoundPrj, aMinPnt[3];
1387     ComputeBoundsParam(theBounds,theDirection,aMinPnt,aMaxBoundPrj,aMinBoundPrj);
1388     double aLength = (aMaxBoundPrj-aMinBoundPrj)*theDist;
1389     thePos[0] = aMinPnt[0]-theDirection[0]*aLength;
1390     thePos[1] = aMinPnt[1]-theDirection[1]*aLength;
1391     thePos[2] = aMinPnt[2]-theDirection[2]*aLength;
1392   }
1393
1394   // internal function (currently unused, left just in case)
1395   void PositionToDistance( double theBounds[6],
1396                            double theDirection[3],
1397                            double thePos[3],
1398                            double& theDist )
1399   {
1400     double aMaxBoundPrj, aMinBoundPrj, aMinPnt[3];
1401     ComputeBoundsParam(theBounds,theDirection,aMinPnt,aMaxBoundPrj,aMinBoundPrj);
1402     double aPrj = vtkMath::Dot(theDirection,thePos);
1403     theDist = (aPrj-aMinBoundPrj)/(aMaxBoundPrj-aMinBoundPrj);
1404   }
1405
1406   bool ComputeClippingPlaneParameters( std::list<vtkActor*> theActorList,
1407                                        double theNormal[3],
1408                                        double theDist,
1409                                        double theBounds[6],
1410                                        double theOrigin[3] )
1411   {
1412     bool anIsOk = false;
1413     anIsOk = ComputeBounds( theActorList, theBounds );
1414
1415
1416     if( !anIsOk )
1417       return false;
1418
1419     DistanceToPosition( theBounds, theNormal, theDist, theOrigin );
1420     return true;
1421   }
1422
1423   bool ComputeBounds( std::list<vtkActor*> theActorList,
1424                       double theBounds[6])
1425   {
1426     bool anIsOk = false;
1427     theBounds[0] = theBounds[2] = theBounds[4] = VTK_DOUBLE_MAX;
1428     theBounds[1] = theBounds[3] = theBounds[5] = -VTK_DOUBLE_MAX;
1429     std::list<vtkActor*>::iterator anIter = theActorList.begin();
1430     for( ; anIter != theActorList.end(); anIter++ ) {
1431       if( vtkActor* aVTKActor = *anIter ) {
1432         if( SMESH_Actor* anActor = SMESH_Actor::SafeDownCast( aVTKActor ) ) {
1433           double aBounds[6];
1434           anActor->GetUnstructuredGrid()->GetBounds( aBounds );
1435           theBounds[0] = std::min( theBounds[0], aBounds[0] );
1436           theBounds[1] = std::max( theBounds[1], aBounds[1] );
1437           theBounds[2] = std::min( theBounds[2], aBounds[2] );
1438           theBounds[3] = std::max( theBounds[3], aBounds[3] );
1439           theBounds[4] = std::min( theBounds[4], aBounds[4] );
1440           theBounds[5] = std::max( theBounds[5], aBounds[5] );
1441           anIsOk = true;
1442         }
1443       }
1444     }
1445     return anIsOk;
1446   }
1447
1448 #ifndef DISABLE_PLOT2DVIEWER
1449   //================================================================================
1450   /*!
1451    * \brief Find all SMESH_Actor's in the View Window.
1452    * If actor constains Plot2d_Histogram object remove it from each Plot2d Viewer.
1453    */
1454   //================================================================================
1455
1456   void ClearPlot2Viewers( SUIT_ViewWindow* theWindow )
1457   {
1458     if ( SVTK_ViewWindow* aViewWindow = GetVtkViewWindow(theWindow) ) {
1459       vtkRenderer *aRenderer = aViewWindow->getRenderer();
1460       VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
1461       vtkActorCollection *aCollection = aCopy.GetActors();
1462       aCollection->InitTraversal();
1463       while(vtkActor *anAct = aCollection->GetNextActor()){
1464         if(SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>(anAct)){
1465           if(anActor->hasIO() && anActor->GetPlot2Histogram() ){
1466             ProcessIn2DViewers(anActor,RemoveFrom2dViewer);
1467           }
1468         }
1469       }
1470     }
1471   }
1472
1473 #endif
1474
1475 } // end of namespace SMESH