src/SMESHGUI/SMESHGUI_VTKUtils.cxx

   1 // Copyright (C) 2007-2012  CEA/DEN, EDF R&D, OPEN CASCADE
   2 //
   3 // Copyright (C) 2003-2007  OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
   4 // CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
   5 //
   6 // This library is free software; you can redistribute it and/or
   7 // modify it under the terms of the GNU Lesser General Public
   8 // License as published by the Free Software Foundation; either
   9 // version 2.1 of the License.
  10 //
  11 // This library is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 // Lesser General Public License for more details.
  15 //
  16 // You should have received a copy of the GNU Lesser General Public
  17 // License along with this library; if not, write to the Free Software
  18 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  19 //
  20 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
  21 //
  22
  23 // SMESH SMESHGUI : GUI for SMESH component
  24 // File   : SMESHGUI_VTKUtils.cxx
  25 // Author : Open CASCADE S.A.S.
  26 // SMESH includes
  27 //
  28 #include "SMESHGUI_VTKUtils.h"
  29
  30 #include "SMESHGUI.h"
  31 #include "SMESHGUI_Utils.h"
  32 #include "SMESHGUI_Filter.h"
  33 #include "SMESH_ControlsDef.hxx"
  34
  35 #include <SMESH_Actor.h>
  36 #include <SMESH_ActorUtils.h>
  37 #include <SMESH_ObjectDef.h>
  38 #include <SMDS_Mesh.hxx>
  39
  40 // SALOME GUI includes
  41 #include <SUIT_Desktop.h>
  42 #include <SUIT_Session.h>
  43 #include <SUIT_MessageBox.h>
  44 #include <SUIT_ViewManager.h>
  45 #include <SUIT_ResourceMgr.h>
  46
  47 #include <SALOME_ListIO.hxx>
  48 #include <SALOME_ListIteratorOfListIO.hxx>
  49
  50 #include <SVTK_Selector.h>
  51 #include <SVTK_ViewModel.h>
  52 #include <SVTK_ViewWindow.h>
  53
  54 #include <VTKViewer_Algorithm.h>
  55
  56 #include <LightApp_SelectionMgr.h>
  57 #include <SalomeApp_Application.h>
  58 #include <SalomeApp_Study.h>
  59
  60 // SALOME KERNEL includes
  61 #include <utilities.h>
  62
  63 // IDL includes
  64 #include <SALOMEconfig.h>
  65 #include CORBA_CLIENT_HEADER(SMESH_Mesh)
  66 #include CORBA_CLIENT_HEADER(SMESH_Group)
  67
  68 // VTK includes
  69 #include <vtkMath.h>
  70 #include <vtkRenderer.h>
  71 #include <vtkActorCollection.h>
  72 #include <vtkUnstructuredGrid.h>
  73
  74 // OCCT includes
  75 #include <TColStd_IndexedMapOfInteger.hxx>
  76 #include <Standard_ErrorHandler.hxx>
  77
  78 namespace SMESH
  79 {
  80   typedef std::map<TKeyOfVisualObj,TVisualObjPtr> TVisualObjCont;
  81   static TVisualObjCont VISUAL_OBJ_CONT;
  82
  83   //=============================================================================
  84   /*!
  85    * \brief Allocate some memory at construction and release it at destruction.
  86    * Is used to be able to continue working after mesh generation or visualization
  87    * break due to lack of memory
  88    */
  89   //=============================================================================
  90
  91   struct MemoryReserve
  92   {
  93     char* myBuf;
  94     MemoryReserve(): myBuf( new char[1024*1024*1] ){} // 1M
  95     void Free() { if (myBuf) { delete [] myBuf; myBuf = 0; }}
  96     ~MemoryReserve() { Free(); }
  97   };
  98   static MemoryReserve* theVISU_MemoryReserve = new MemoryReserve;
  99
 100   //================================================================================
 101   /*!
 102    * \brief Remove VisualObj and its actor from all views
 103    */
 104   //================================================================================
 105
 106   void RemoveVisualObjectWithActors( const char* theEntry, bool fromAllViews )
 107   {
 108     SalomeApp_Application* app = dynamic_cast<SalomeApp_Application*>(SUIT_Session::session()->activeApplication());
 109     if(!app)
 110       return;
 111     SalomeApp_Study* aStudy  = dynamic_cast<SalomeApp_Study*>(app->activeStudy());
 112     if(!aStudy)
 113       return;
 114     ViewManagerList aList;
 115
 116     if(fromAllViews) {
 117       app->viewManagers(SVTK_Viewer::Type() , aList);
 118     } else {
 119       SUIT_ViewManager* aVM = app->getViewManager(SVTK_Viewer::Type(), true);
 120       if(aVM)
 121         aList.append(aVM);
 122     }
 123     bool actorRemoved = false;
 124     ViewManagerList::ConstIterator it = aList.begin();
 125     SUIT_ViewManager* aViewManager = 0;
 126     for( ; it!=aList.end();it++) {
 127       aViewManager = *it;
 128       QVector<SUIT_ViewWindow*> views = aViewManager->getViews();
 129       for ( int iV = 0; iV < views.count(); ++iV ) {
 130         if ( SMESH_Actor* actor = FindActorByEntry( views[iV], theEntry)) {
 131           if(SVTK_ViewWindow* vtkWnd = GetVtkViewWindow(views[iV])) {
 132             vtkWnd->RemoveActor(actor);
 133             actorRemoved = true;
 134           }
 135           actor->Delete();
 136         }
 137       }
 138     }
 139
 140     if (aViewManager ) {
 141       int aStudyId = aViewManager->study()->id();
 142       TVisualObjCont::key_type aKey(aStudyId,theEntry);
 143       TVisualObjCont::iterator anIter = VISUAL_OBJ_CONT.find(aKey);
 144       if(anIter != VISUAL_OBJ_CONT.end()) {
 145         // for unknown reason, object destructor is not called, so clear object manually
 146         anIter->second->GetUnstructuredGrid()->SetCells(0,0,0,0,0);
 147         anIter->second->GetUnstructuredGrid()->SetPoints(0);
 148       }
 149       VISUAL_OBJ_CONT.erase(aKey);
 150     }
 151
 152     if(actorRemoved)
 153       aStudy->setVisibilityState(theEntry, Qtx::HiddenState);
 154   }
 155   //================================================================================
 156   /*!
 157    * \brief Remove all VisualObjs and their actors from all views
 158    */
 159   //================================================================================
 160
 161   void RemoveAllObjectsWithActors()
 162   {
 163     SalomeApp_Application* app = dynamic_cast<SalomeApp_Application*>
 164       ( SUIT_Session::session()->activeApplication() );
 165     if (!app) return;
 166     ViewManagerList viewMgrs = app->viewManagers();
 167     for ( int iM = 0; iM < viewMgrs.count(); ++iM ) {
 168       SUIT_ViewManager* aViewManager = viewMgrs.at( iM );
 169       if ( aViewManager && aViewManager->getType() == SVTK_Viewer::Type()) {
 170         QVector<SUIT_ViewWindow*> views = aViewManager->getViews();
 171         for ( int iV = 0; iV < views.count(); ++iV ) {
 172           if(SVTK_ViewWindow* vtkWnd = GetVtkViewWindow(views[iV])) {
 173             vtkRenderer *aRenderer = vtkWnd->getRenderer();
 174             VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
 175             vtkActorCollection *actors = aCopy.GetActors();
 176             for (int i = 0; i < actors->GetNumberOfItems(); ++i ) {
 177               // size of actors changes inside the loop
 178               if (SMESH_Actor *actor = dynamic_cast<SMESH_Actor*>(actors->GetItemAsObject(i)))
 179               {
 180                 vtkWnd->RemoveActor(actor);
 181                 actor->Delete();
 182               }
 183             }
 184           }
 185         }
 186       }
 187     }
 188     TVisualObjCont::iterator anIter = VISUAL_OBJ_CONT.begin();
 189     for ( ; anIter != VISUAL_OBJ_CONT.end(); ++anIter ) {
 190       // for unknown reason, object destructor is not called, so clear object manually
 191       anIter->second->GetUnstructuredGrid()->SetCells(0,0,0,0,0);
 192       anIter->second->GetUnstructuredGrid()->SetPoints(0);
 193     }
 194     VISUAL_OBJ_CONT.clear();
 195   }
 196
 197   //================================================================================
 198   /*!
 199    * \brief Remove all VisualObjs of a study
 200    */
 201   //================================================================================
 202
 203   void RemoveVisuData(int studyID)
 204   {
 205     SalomeApp_Application* app = dynamic_cast<SalomeApp_Application*>
 206       ( SUIT_Session::session()->activeApplication() );
 207     if (!app) return;
 208     ViewManagerList viewMgrs = app->viewManagers();
 209     for ( int iM = 0; iM < viewMgrs.count(); ++iM ) {
 210       SUIT_ViewManager* aViewManager = viewMgrs.at( iM );
 211       if ( aViewManager && aViewManager->getType() == SVTK_Viewer::Type() &&
 212            aViewManager->study()->id() == studyID ) {
 213         QVector<SUIT_ViewWindow*> views = aViewManager->getViews();
 214         for ( int iV = 0; iV < views.count(); ++iV ) {
 215           if(SVTK_ViewWindow* vtkWnd = GetVtkViewWindow(views[iV])) {
 216             vtkRenderer *aRenderer = vtkWnd->getRenderer();
 217             VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
 218             vtkActorCollection *actors = aCopy.GetActors();
 219             for (int i = 0; i < actors->GetNumberOfItems(); ++i ) {
 220               // size of actors changes inside the loop
 221               if(SMESH_Actor *actor = dynamic_cast<SMESH_Actor*>(actors->GetItemAsObject(i)))
 222               {
 223                 vtkWnd->RemoveActor(actor);
 224                 actor->Delete();
 225               }
 226             }
 227           }
 228         }
 229       }
 230     }
 231     TVisualObjCont::iterator anIter = VISUAL_OBJ_CONT.begin();
 232     for ( ; anIter != VISUAL_OBJ_CONT.end(); ) {
 233       int curId = anIter->first.first;
 234       if ( curId == studyID ) {
 235         // for unknown reason, object destructor is not called, so clear object manually
 236         anIter->second->GetUnstructuredGrid()->SetCells(0,0,0,0,0);
 237         anIter->second->GetUnstructuredGrid()->SetPoints(0);
 238         VISUAL_OBJ_CONT.erase( anIter++ ); // anIter++ returns a copy of self before incrementing
 239       }
 240       else {
 241         anIter++;
 242       }
 243     }
 244   }
 245
 246   //================================================================================
 247   /*!
 248    * \brief Notify the user on problems during visualization
 249    */
 250   //================================================================================
 251
 252   void OnVisuException()
 253   {
 254     try {
 255 #if (OCC_VERSION_MAJOR << 16 | OCC_VERSION_MINOR << 8 | OCC_VERSION_MAINTENANCE) > 0x060100
 256       OCC_CATCH_SIGNALS;
 257 #endif
 258       // PAL16774 (Crash after display of many groups). Salome sometimes crashes just
 259       // after or at showing this message, so we do an additional check of available memory
 260 //       char* buf = new char[100*1024];
 261 //       delete [] buf;
 262       SUIT_MessageBox::warning(SMESHGUI::desktop(), QObject::tr("SMESH_WRN_WARNING"),
 263                                QObject::tr("SMESH_VISU_PROBLEM"));
 264     } catch (...) {
 265       // no more memory at all: last resort
 266       MESSAGE_BEGIN ( "SMESHGUI_VTKUtils::OnVisuException(), exception even at showing a message!!!" <<
 267                       std::endl << "Try to remove all visual data..." );
 268       if (theVISU_MemoryReserve) {
 269         delete theVISU_MemoryReserve;
 270         theVISU_MemoryReserve = 0;
 271       }
 272       RemoveAllObjectsWithActors();
 273       SUIT_MessageBox::warning(SMESHGUI::desktop(), QObject::tr("SMESH_WRN_WARNING"),
 274                                QObject::tr("SMESH_VISU_PROBLEM_CLEAR"));
 275       MESSAGE_END ( "...done" );
 276     }
 277   }
 278   //================================================================================
 279   /*!
 280    * \brief Returns an updated visual object
 281    */
 282   //================================================================================
 283
 284   TVisualObjPtr GetVisualObj(int theStudyId, const char* theEntry, bool nulData){
 285     TVisualObjPtr aVisualObj;
 286     TVisualObjCont::key_type aKey(theStudyId,theEntry);
 287     try{
 288 #if (OCC_VERSION_MAJOR << 16 | OCC_VERSION_MINOR << 8 | OCC_VERSION_MAINTENANCE) > 0x060100
 289       OCC_CATCH_SIGNALS;
 290 #endif
 291       TVisualObjCont::iterator anIter = VISUAL_OBJ_CONT.find(aKey);
 292       if(anIter != VISUAL_OBJ_CONT.end()){
 293         aVisualObj = anIter->second;
 294       }else{
 295         SalomeApp_Application* app =
 296           dynamic_cast<SalomeApp_Application*>( SMESHGUI::activeStudy()->application() );
 297         _PTR(Study) aStudy = SMESHGUI::activeStudy()->studyDS();
 298         _PTR(SObject) aSObj = aStudy->FindObjectID(theEntry);
 299         if(aSObj){
 300           _PTR(GenericAttribute) anAttr;
 301           if(aSObj->FindAttribute(anAttr,"AttributeIOR")){
 302             _PTR(AttributeIOR) anIOR = anAttr;
 303             CORBA::String_var aVal = anIOR->Value().c_str();
 304             CORBA::Object_var anObj = app->orb()->string_to_object( aVal.in() );
 305             if(!CORBA::is_nil(anObj)){
 306               //Try narrow to SMESH_Mesh interface
 307               SMESH::SMESH_Mesh_var aMesh = SMESH::SMESH_Mesh::_narrow(anObj);
 308               if(!aMesh->_is_nil()){
 309                 aVisualObj.reset(new SMESH_MeshObj(aMesh));
 310                 TVisualObjCont::value_type aValue(aKey,aVisualObj);
 311                 VISUAL_OBJ_CONT.insert(aValue);
 312               }
 313               //Try narrow to SMESH_Group interface
 314               SMESH::SMESH_GroupBase_var aGroup = SMESH::SMESH_GroupBase::_narrow(anObj);
 315               if(!aGroup->_is_nil()){
 316                 _PTR(SObject) aFatherSObj = aSObj->GetFather();
 317                 if(!aFatherSObj) return aVisualObj;
 318                 aFatherSObj = aFatherSObj->GetFather();
 319                 if(!aFatherSObj) return aVisualObj;
 320                 CORBA::String_var anEntry = aFatherSObj->GetID().c_str();
 321                 TVisualObjPtr aVisObj = GetVisualObj(theStudyId,anEntry.in());
 322                 if(SMESH_MeshObj* aMeshObj = dynamic_cast<SMESH_MeshObj*>(aVisObj.get())){
 323                   aVisualObj.reset(new SMESH_GroupObj(aGroup,aMeshObj));
 324                   TVisualObjCont::value_type aValue(aKey,aVisualObj);
 325                   VISUAL_OBJ_CONT.insert(aValue);
 326                 }
 327               }
 328               //Try narrow to SMESH_subMesh interface
 329               SMESH::SMESH_subMesh_var aSubMesh = SMESH::SMESH_subMesh::_narrow(anObj);
 330               if(!aSubMesh->_is_nil()){
 331                 _PTR(SObject) aFatherSObj = aSObj->GetFather();
 332                 if(!aFatherSObj) return aVisualObj;
 333                 aFatherSObj = aFatherSObj->GetFather();
 334                 if(!aFatherSObj) return aVisualObj;
 335                 CORBA::String_var anEntry = aFatherSObj->GetID().c_str();
 336                 TVisualObjPtr aVisObj = GetVisualObj(theStudyId,anEntry.in());
 337                 if(SMESH_MeshObj* aMeshObj = dynamic_cast<SMESH_MeshObj*>(aVisObj.get())){
 338                   aVisualObj.reset(new SMESH_subMeshObj(aSubMesh,aMeshObj));
 339                   TVisualObjCont::value_type aValue(aKey,aVisualObj);
 340                   VISUAL_OBJ_CONT.insert(aValue);
 341                 }
 342               }
 343             }
 344           }
 345         }
 346       }
 347     }catch(...){
 348       INFOS("GetMeshObj - There is no SMESH_Mesh object for the SALOMEDS::Strudy and Entry!!!");
 349       return TVisualObjPtr();
 350     }
 351     // Update object
 352     bool objModified = false;
 353     if ( aVisualObj ) {
 354       try {
 355 #if (OCC_VERSION_MAJOR << 16 | OCC_VERSION_MINOR << 8 | OCC_VERSION_MAINTENANCE) > 0x060100
 356         OCC_CATCH_SIGNALS;
 357 #endif
 358         //MESSAGE("GetVisualObj");
 359         if (nulData)
 360                 objModified = aVisualObj->NulData();
 361         else
 362           objModified = aVisualObj->Update();
 363       }
 364       catch (...) {
 365 #ifdef _DEBUG_
 366         MESSAGE ( "Exception in SMESHGUI_VTKUtils::GetVisualObj()" );
 367 #endif
 368         RemoveVisualObjectWithActors( theEntry ); // remove this object
 369         OnVisuException();
 370         aVisualObj.reset();
 371       }
 372     }
 373
 374     if ( objModified ) {
 375       // PAL16631. Mesurements showed that to show aVisualObj in SHADING(default) mode,
 376       // ~5 times more memory is used than it occupies.
 377       // Warn the user if there is less free memory than 30 sizes of a grid
 378       // TODO: estimate memory usage in other modes and take current mode into account
 379       int freeMB = SMDS_Mesh::CheckMemory(true);
 380       int usedMB = aVisualObj->GetUnstructuredGrid()->GetActualMemorySize() / 1024;
 381       MESSAGE("SMESHGUI_VTKUtils::GetVisualObj(), freeMB=" << freeMB << ", usedMB=" <<usedMB);
 382       if ( freeMB > 0 && usedMB * 5 > freeMB ) {
 383        bool continu = false;
 384        if ( usedMB * 3 > freeMB )
 385          // even dont try to show
 386          SUIT_MessageBox::warning(SMESHGUI::desktop(), QObject::tr("SMESH_WRN_WARNING"),
 387                                   QObject::tr("SMESH_NO_MESH_VISUALIZATION"));
 388        else
 389          // there is a chance to succeed
 390          continu = SUIT_MessageBox::warning
 391            (SMESHGUI::desktop(),
 392             QObject::tr("SMESH_WRN_WARNING"),
 393             QObject::tr("SMESH_CONTINUE_MESH_VISUALIZATION"),
 394             SUIT_MessageBox::Yes | SUIT_MessageBox::No,
 395             SUIT_MessageBox::Yes ) == SUIT_MessageBox::Yes;
 396        if ( !continu ) {
 397          // remove the corresponding actors from all views
 398          RemoveVisualObjectWithActors( theEntry );
 399          aVisualObj.reset();
 400        }
 401       }
 402     }
 403
 404     return aVisualObj;
 405   }
 406
 407
 408   /*! Return active view window, if it instantiates SVTK_ViewWindow class,
 409    *  overwise find or create corresponding view window, make it active and return it.
 410    *  \note Active VVTK_ViewWindow can be returned, because it inherits SVTK_ViewWindow.
 411    */
 412   SVTK_ViewWindow* GetViewWindow (const SalomeApp_Module* theModule,
 413                                   bool createIfNotFound)
 414   {
 415     SalomeApp_Application* anApp;
 416     if (theModule)
 417       anApp = theModule->getApp();
 418     else
 419       anApp = dynamic_cast<SalomeApp_Application*>
 420         (SUIT_Session::session()->activeApplication());
 421
 422     if (anApp) {
 423       if (SVTK_ViewWindow* aView = dynamic_cast<SVTK_ViewWindow*>(anApp->desktop()->activeWindow()))
 424         return aView;
 425
 426       SUIT_ViewManager* aViewManager =
 427         anApp->getViewManager(SVTK_Viewer::Type(), createIfNotFound);
 428       if (aViewManager) {
 429         if (SUIT_ViewWindow* aViewWindow = aViewManager->getActiveView()) {
 430           if (SVTK_ViewWindow* aView = dynamic_cast<SVTK_ViewWindow*>(aViewWindow)) {
 431             aViewWindow->raise();
 432             aViewWindow->setFocus();
 433             return aView;
 434           }
 435         }
 436       }
 437     }
 438     return NULL;
 439   }
 440
 441   SVTK_ViewWindow* FindVtkViewWindow (SUIT_ViewManager* theMgr,
 442                                       SUIT_ViewWindow * theWindow)
 443   {
 444     if( !theMgr )
 445       return NULL;
 446
 447     QVector<SUIT_ViewWindow*> views = theMgr->getViews();
 448     if( views.contains( theWindow ) )
 449       return GetVtkViewWindow( theWindow );
 450     else
 451       return NULL;
 452   }
 453
 454   SVTK_ViewWindow* GetVtkViewWindow(SUIT_ViewWindow* theWindow){
 455     return dynamic_cast<SVTK_ViewWindow*>(theWindow);
 456   }
 457
 458 /*  SUIT_ViewWindow* GetActiveWindow()
 459   {
 460     SalomeApp_Application* app = dynamic_cast<SalomeApp_Application*>( SUIT_Session::session()->activeApplication() );
 461     if( !app )
 462       return NULL;
 463     SUIT_ViewManager* mgr = app->activeViewManager();
 464     if( mgr )
 465       return mgr->getActiveView();
 466     else
 467       return NULL;
 468   }*/
 469
 470   SVTK_ViewWindow* GetCurrentVtkView(){
 471     return GetVtkViewWindow( GetActiveWindow() );
 472   }
 473
 474
 475   void RepaintCurrentView()
 476   {
 477     if (SVTK_ViewWindow* wnd = GetCurrentVtkView())
 478     {
 479       try {
 480 #if (OCC_VERSION_MAJOR << 16 | OCC_VERSION_MINOR << 8 | OCC_VERSION_MAINTENANCE) > 0x060100
 481         OCC_CATCH_SIGNALS;
 482 #endif
 483         wnd->getRenderer()->Render();
 484         wnd->Repaint(false);
 485       }
 486       catch (...) {
 487 #ifdef _DEBUG_
 488         MESSAGE ( "Exception in SMESHGUI_VTKUtils::RepaintCurrentView()" );
 489 #endif
 490         OnVisuException();
 491       }
 492     }
 493   }
 494
 495   void RepaintViewWindow(SVTK_ViewWindow* theWindow)
 496   {
 497     try {
 498 #if (OCC_VERSION_MAJOR << 16 | OCC_VERSION_MINOR << 8 | OCC_VERSION_MAINTENANCE) > 0x060100
 499       OCC_CATCH_SIGNALS;
 500 #endif
 501       theWindow->getRenderer()->Render();
 502       theWindow->Repaint();
 503     }
 504     catch (...) {
 505 #ifdef _DEBUG_
 506       MESSAGE ( "Exception in SMESHGUI_VTKUtils::RepaintViewWindow(SVTK_ViewWindow*)" );
 507 #endif
 508       OnVisuException();
 509     }
 510   }
 511
 512   void RenderViewWindow(SVTK_ViewWindow* theWindow)
 513   {
 514     try {
 515 #if (OCC_VERSION_MAJOR << 16 | OCC_VERSION_MINOR << 8 | OCC_VERSION_MAINTENANCE) > 0x060100
 516       OCC_CATCH_SIGNALS;
 517 #endif
 518       theWindow->getRenderer()->Render();
 519       theWindow->Repaint();
 520     }
 521     catch (...) {
 522 #ifdef _DEBUG_
 523       MESSAGE ( "Exception in SMESHGUI_VTKUtils::RenderViewWindow(SVTK_ViewWindow*)" );
 524 #endif
 525       OnVisuException();
 526     }
 527   }
 528
 529   void FitAll(){
 530     if(SVTK_ViewWindow* wnd = GetCurrentVtkView() ){
 531       try {
 532 #if (OCC_VERSION_MAJOR << 16 | OCC_VERSION_MINOR << 8 | OCC_VERSION_MAINTENANCE) > 0x060100
 533         OCC_CATCH_SIGNALS;
 534 #endif
 535         wnd->onFitAll();
 536         wnd->Repaint();
 537       }
 538       catch (...) {
 539 #ifdef _DEBUG_
 540         MESSAGE ( "Exception in SMESHGUI_VTKUtils::FitAll()" );
 541 #endif
 542         OnVisuException();
 543       }
 544     }
 545   }
 546
 547
 548   SMESH_Actor* FindActorByEntry(SUIT_ViewWindow *theWindow,
 549                                 const char* theEntry)
 550   {
 551     if(SVTK_ViewWindow* aViewWindow = GetVtkViewWindow(theWindow)){
 552       vtkRenderer *aRenderer = aViewWindow->getRenderer();
 553       VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
 554       vtkActorCollection *aCollection = aCopy.GetActors();
 555       aCollection->InitTraversal();
 556       while(vtkActor *anAct = aCollection->GetNextActor()){
 557         if(SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>(anAct)){
 558           if(anActor->hasIO()){
 559             Handle(SALOME_InteractiveObject) anIO = anActor->getIO();
 560             if(anIO->hasEntry() && strcmp(anIO->getEntry(),theEntry) == 0){
 561               return anActor;
 562             }
 563           }
 564         }
 565       }
 566     }
 567     return NULL;
 568   }
 569
 570
 571   SMESH_Actor* FindActorByEntry(const char* theEntry){
 572     return FindActorByEntry(GetActiveWindow(),theEntry);
 573   }
 574
 575
 576   SMESH_Actor* FindActorByObject(CORBA::Object_ptr theObject){
 577     SalomeApp_Application* app = dynamic_cast<SalomeApp_Application*>( SUIT_Session::session()->activeApplication() );
 578     if( !app )
 579       return NULL;
 580
 581     if(!CORBA::is_nil(theObject)){
 582       _PTR(Study) aStudy = GetActiveStudyDocument();
 583       CORBA::String_var anIOR = app->orb()->object_to_string( theObject );
 584       _PTR(SObject) aSObject = aStudy->FindObjectIOR(anIOR.in());
 585       if(aSObject){
 586         CORBA::String_var anEntry = aSObject->GetID().c_str();
 587         return FindActorByEntry(anEntry.in());
 588       }
 589     }
 590     return NULL;
 591   }
 592
 593
 594   SMESH_Actor* CreateActor(_PTR(Study) theStudy,
 595                            const char* theEntry,
 596                            int theIsClear)
 597   {
 598     SMESH_Actor *anActor = NULL;
 599     CORBA::Long anId = theStudy->StudyId();
 600     if(TVisualObjPtr aVisualObj = GetVisualObj(anId,theEntry)){
 601       _PTR(SObject) aSObj = theStudy->FindObjectID(theEntry);
 602       if(aSObj){
 603         _PTR(GenericAttribute) anAttr;
 604         if(aSObj->FindAttribute(anAttr,"AttributeName")){
 605           _PTR(AttributeName) aName = anAttr;
 606           std::string aNameVal = aName->Value();
 607           anActor = SMESH_Actor::New(aVisualObj,theEntry,aNameVal.c_str(),theIsClear);
 608         }
 609
 610         SMESH::SMESH_GroupBase_var aGroup = SMESH::SMESH_GroupBase::_narrow( SMESH::SObjectToObject( aSObj ));
 611         if(!CORBA::is_nil(aGroup) && anActor)
 612         {
 613           QColor c;
 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           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           }
 777         } else {
 778           switch (theAction) {
 779           case eDisplay:
 780           case eDisplayOnly:
 781             {
 782                 //MESSAGE("---");
 783               SalomeApp_Study* aStudy = dynamic_cast<SalomeApp_Study*>(theWnd->getViewManager()->study());
 784               _PTR(Study) aDocument = aStudy->studyDS();
 785               // Pass non-visual objects (hypotheses, etc.), return true in this case
 786               CORBA::Long anId = aDocument->StudyId();
 787               TVisualObjPtr aVisualObj;
 788               if ( (aVisualObj = GetVisualObj(anId,theEntry)) && aVisualObj->IsValid())
 789               {
 790                 if ((anActor = CreateActor(aDocument,theEntry,true))) {
 791                   bool needFitAll = noSmeshActors(theWnd); // fit for the first object only
 792                   DisplayActor(theWnd,anActor);
 793                   aStudy->setVisibilityState(theEntry, Qtx::ShownState);
 794                   // FitAll(); - PAL16770(Display of a group performs an automatic fit all)
 795                   if (needFitAll) FitAll();
 796                 } else {
 797                   OK = false;
 798                 }
 799               }
 800               break;
 801             }
 802           }
 803         }
 804       }
 805       }
 806     }
 807     return OK;
 808   }
 809
 810
 811   bool UpdateView(EDisplaing theAction, const char* theEntry){
 812         //MESSAGE("UpdateView");
 813     SalomeApp_Study* aStudy = dynamic_cast< SalomeApp_Study* >( GetActiveStudy() );
 814     SalomeApp_Application* app = dynamic_cast< SalomeApp_Application* >( aStudy->application() );
 815     SUIT_ViewWindow *aWnd = app->activeViewManager()->getActiveView();
 816     return UpdateView(aWnd,theAction,theEntry);
 817   }
 818
 819   void UpdateView(){
 820     if(SVTK_ViewWindow* aWnd = SMESH::GetCurrentVtkView()){
 821       LightApp_SelectionMgr* mgr = SMESHGUI::selectionMgr();
 822       SALOME_ListIO selected; mgr->selectedObjects( selected );
 823
 824       if( selected.Extent() == 0){
 825         vtkRenderer* aRenderer = aWnd->getRenderer();
 826         VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
 827         vtkActorCollection *aCollection = aCopy.GetActors();
 828         aCollection->InitTraversal();
 829         while(vtkActor *anAct = aCollection->GetNextActor()){
 830           if(SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>(anAct)){
 831             if(anActor->hasIO())
 832               if (!Update(anActor->getIO(),anActor->GetVisibility()))
 833                 break; // avoid multiple warinings if visu failed
 834           }
 835         }
 836       }else{
 837         SALOME_ListIteratorOfListIO anIter( selected );
 838         for( ; anIter.More(); anIter.Next()){
 839           Handle(SALOME_InteractiveObject) anIO = anIter.Value();
 840           if ( !Update(anIO,true) )
 841             break; // avoid multiple warinings if visu failed
 842         }
 843       }
 844       RepaintCurrentView();
 845     }
 846   }
 847
 848
 849   bool Update(const Handle(SALOME_InteractiveObject)& theIO, bool theDisplay)
 850   {
 851         MESSAGE("Update");
 852     _PTR(Study) aStudy = GetActiveStudyDocument();
 853     CORBA::Long anId = aStudy->StudyId();
 854     if ( TVisualObjPtr aVisualObj = SMESH::GetVisualObj(anId,theIO->getEntry())) {
 855       if ( theDisplay )
 856         UpdateView(SMESH::eDisplay,theIO->getEntry());
 857       return true;
 858     }
 859     return false;
 860   }
 861
 862   bool UpdateNulData(const Handle(SALOME_InteractiveObject)& theIO, bool theDisplay)
 863   {
 864         MESSAGE("UpdateNulData");
 865     _PTR(Study) aStudy = GetActiveStudyDocument();
 866     CORBA::Long anId = aStudy->StudyId();
 867     if ( TVisualObjPtr aVisualObj = SMESH::GetVisualObj(anId,theIO->getEntry(), true)) {
 868       if ( theDisplay )
 869         UpdateView(SMESH::eDisplay,theIO->getEntry());
 870       return true;
 871     }
 872     return false;
 873   }
 874
 875   void UpdateSelectionProp( SMESHGUI* theModule ) {
 876     if( !theModule )
 877       return;
 878
 879     SalomeApp_Application* app = dynamic_cast< SalomeApp_Application* >( theModule->application() );
 880     if( !app )
 881     {
 882       MESSAGE( "UpdateSelectionProp: Application is null" );
 883       return;
 884     }
 885
 886     SUIT_ViewManager* vm = app->activeViewManager();
 887     if( !vm )
 888     {
 889       MESSAGE( "UpdateSelectionProp: View manager is null" );
 890       return;
 891     }
 892
 893     QVector<SUIT_ViewWindow*> views = vm->getViews();
 894
 895     SUIT_ResourceMgr* mgr = SMESH::GetResourceMgr( theModule );
 896     if( !mgr )
 897     {
 898       MESSAGE( "UpdateSelectionProp: Resource manager is null" );
 899       return;
 900     }
 901
 902     QColor aHiColor = mgr->colorValue( "SMESH", "selection_object_color", Qt::white ),
 903            aSelColor = mgr->colorValue( "SMESH", "selection_element_color", Qt::yellow ),
 904            aPreColor = mgr->colorValue( "SMESH", "highlight_color", Qt::cyan );
 905
 906     int aElem0DSize = mgr->integerValue("SMESH", "elem0d_size", 5);
 907     int aBallSize   = mgr->integerValue("SMESH", "ball_elem_size", 5);
 908     int aLineWidth  = mgr->integerValue("SMESH", "element_width", 1);
 909     int maxSize = aElem0DSize;
 910     if (aElem0DSize > maxSize) maxSize = aElem0DSize;
 911     if (aLineWidth > maxSize) maxSize = aLineWidth;
 912     if (aBallSize > maxSize) maxSize = aBallSize;
 913
 914     double SP1 = mgr->doubleValue( "SMESH", "selection_precision_node", 0.025 ),
 915            SP2 = mgr->doubleValue( "SMESH", "selection_precision_element", 0.001 ),
 916            SP3 = mgr->doubleValue( "SMESH", "selection_precision_object", 0.025 );
 917
 918     for ( int i=0, n=views.count(); i<n; i++ ){
 919       // update VTK viewer properties
 920       if(SVTK_ViewWindow* aVtkView = GetVtkViewWindow( views[i] )){
 921         // mesh element selection
 922         aVtkView->SetSelectionProp(aSelColor.red()/255.,
 923                                    aSelColor.green()/255.,
 924                                    aSelColor.blue()/255.);
 925         // tolerances
 926         aVtkView->SetSelectionTolerance(SP1, SP2, SP3);
 927
 928         // pre-selection
 929         aVtkView->SetPreselectionProp(aPreColor.red()/255.,
 930                                       aPreColor.green()/255.,
 931                                       aPreColor.blue()/255.);
 932         // update actors
 933         vtkRenderer* aRenderer = aVtkView->getRenderer();
 934         VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
 935         vtkActorCollection *aCollection = aCopy.GetActors();
 936         aCollection->InitTraversal();
 937         while(vtkActor *anAct = aCollection->GetNextActor()){
 938           if(SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>(anAct)){
 939             anActor->SetHighlightColor(aHiColor.red()/255.,
 940                                        aHiColor.green()/255.,
 941                                        aHiColor.blue()/255.);
 942             anActor->SetPreHighlightColor(aPreColor.red()/255.,
 943                                           aPreColor.green()/255.,
 944                                           aPreColor.blue()/255.);
 945           }
 946         }
 947       }
 948     }
 949   }
 950
 951
 952   //----------------------------------------------------------------------------
 953   SVTK_Selector*
 954   GetSelector(SUIT_ViewWindow *theWindow)
 955   {
 956     if(SVTK_ViewWindow* aWnd = GetVtkViewWindow(theWindow))
 957       return aWnd->GetSelector();
 958
 959     return NULL;
 960   }
 961
 962   void SetFilter(const Handle(VTKViewer_Filter)& theFilter,
 963                  SVTK_Selector* theSelector)
 964   {
 965     if (theSelector)
 966       theSelector->SetFilter(theFilter);
 967   }
 968
 969   Handle(VTKViewer_Filter) GetFilter(int theId, SVTK_Selector* theSelector)
 970   {
 971     return theSelector->GetFilter(theId);
 972   }
 973
 974   bool IsFilterPresent(int theId, SVTK_Selector* theSelector)
 975   {
 976     return theSelector->IsFilterPresent(theId);
 977   }
 978
 979   void RemoveFilter(int theId, SVTK_Selector* theSelector)
 980   {
 981     theSelector->RemoveFilter(theId);
 982   }
 983
 984   void RemoveFilters(SVTK_Selector* theSelector)
 985   {
 986     for ( int id = SMESH::NodeFilter; theSelector && id < SMESH::LastFilter; id++ )
 987       theSelector->RemoveFilter( id );
 988   }
 989
 990   bool IsValid(SALOME_Actor* theActor, int theCellId,
 991                SVTK_Selector* theSelector)
 992   {
 993     return theSelector->IsValid(theActor,theCellId);
 994   }
 995
 996
 997   //----------------------------------------------------------------------------
 998   void SetPointRepresentation(bool theIsVisible){
 999     if(SVTK_ViewWindow* aViewWindow = GetCurrentVtkView()){
1000       vtkRenderer *aRenderer = aViewWindow->getRenderer();
1001       VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
1002       vtkActorCollection *aCollection = aCopy.GetActors();
1003       aCollection->InitTraversal();
1004       while(vtkActor *anAct = aCollection->GetNextActor()){
1005         if(SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>(anAct)){
1006           if(anActor->GetVisibility()){
1007             anActor->SetPointRepresentation(theIsVisible);
1008           }
1009         }
1010       }
1011       RepaintCurrentView();
1012     }
1013   }
1014
1015
1016   void SetPickable(SMESH_Actor* theActor){
1017     if(SVTK_ViewWindow* aWnd = GetCurrentVtkView()){
1018       int anIsAllPickable = (theActor == NULL);
1019       vtkRenderer *aRenderer = aWnd->getRenderer();
1020       VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
1021       vtkActorCollection *aCollection = aCopy.GetActors();
1022       aCollection->InitTraversal();
1023       while(vtkActor *anAct = aCollection->GetNextActor()){
1024         if(SALOME_Actor *anActor = dynamic_cast<SALOME_Actor*>(anAct)){
1025           if(anActor->GetVisibility()){
1026             anActor->SetPickable(anIsAllPickable);
1027           }
1028         }
1029       }
1030       if(theActor)
1031         theActor->SetPickable(!anIsAllPickable);
1032       RepaintCurrentView();
1033     }
1034   }
1035
1036
1037   //----------------------------------------------------------------------------
1038   int GetNameOfSelectedNodes(SVTK_Selector* theSelector,
1039                              const Handle(SALOME_InteractiveObject)& theIO,
1040                              QString& theName)
1041   {
1042     theName = "";
1043     TColStd_IndexedMapOfInteger aMapIndex;
1044     theSelector->GetIndex(theIO,aMapIndex);
1045
1046     for(int i = 1; i <= aMapIndex.Extent(); i++)
1047       theName += QString(" %1").arg(aMapIndex(i));
1048
1049     return aMapIndex.Extent();
1050   }
1051
1052   int GetNameOfSelectedElements(SVTK_Selector* theSelector,
1053                                 const Handle(SALOME_InteractiveObject)& theIO,
1054                                 QString& theName)
1055   {
1056     theName = "";
1057     TColStd_IndexedMapOfInteger aMapIndex;
1058     theSelector->GetIndex(theIO,aMapIndex);
1059
1060     typedef std::set<int> TIdContainer;
1061     TIdContainer anIdContainer;
1062     for( int i = 1; i <= aMapIndex.Extent(); i++)
1063       anIdContainer.insert(aMapIndex(i));
1064
1065     TIdContainer::const_iterator anIter = anIdContainer.begin();
1066     for( ; anIter != anIdContainer.end(); anIter++)
1067       theName += QString(" %1").arg(*anIter);
1068
1069     return aMapIndex.Extent();
1070   }
1071
1072
1073   int GetEdgeNodes(SVTK_Selector* theSelector,
1074                    const TVisualObjPtr& theVisualObject,
1075                    int& theId1,
1076                    int& theId2)
1077   {
1078     const SALOME_ListIO& selected = theSelector->StoredIObjects();
1079
1080     if ( selected.Extent() != 1 )
1081       return -1;
1082
1083     Handle(SALOME_InteractiveObject) anIO = selected.First();
1084     if ( anIO.IsNull() || !anIO->hasEntry() )
1085       return -1;
1086
1087     TColStd_IndexedMapOfInteger aMapIndex;
1088     theSelector->GetIndex( anIO, aMapIndex );
1089     if ( aMapIndex.Extent() != 2 )
1090       return -1;
1091
1092     int anObjId = -1, anEdgeNum = -1;
1093     for ( int i = 1; i <= aMapIndex.Extent(); i++ ) {
1094       int aVal = aMapIndex( i );
1095       if ( aVal > 0 )
1096         anObjId = aVal;
1097       else
1098         anEdgeNum = abs( aVal ) - 1;
1099     }
1100
1101     if ( anObjId == -1 || anEdgeNum == -1 )
1102       return -1;
1103
1104     return theVisualObject->GetEdgeNodes( anObjId, anEdgeNum, theId1, theId2 ) ? 1 : -1;
1105   }
1106
1107   //----------------------------------------------------------------------------
1108   int GetNameOfSelectedNodes(LightApp_SelectionMgr *theMgr,
1109                              const Handle(SALOME_InteractiveObject)& theIO,
1110                              QString& theName)
1111   {
1112     theName = "";
1113     if(theIO->hasEntry()){
1114       if(FindActorByEntry(theIO->getEntry())){
1115         TColStd_IndexedMapOfInteger aMapIndex;
1116         theMgr->GetIndexes(theIO,aMapIndex);
1117         for(int i = 1; i <= aMapIndex.Extent(); i++){
1118           theName += QString(" %1").arg(aMapIndex(i));
1119         }
1120         return aMapIndex.Extent();
1121       }
1122     }
1123     return -1;
1124   }
1125
1126   int GetNameOfSelectedNodes(LightApp_SelectionMgr *theMgr, QString& theName){
1127     theName = "";
1128     SALOME_ListIO selected; theMgr->selectedObjects( selected );
1129     if(selected.Extent() == 1){
1130       Handle(SALOME_InteractiveObject) anIO = selected.First();
1131       return GetNameOfSelectedNodes(theMgr,anIO,theName);
1132     }
1133     return -1;
1134   }
1135
1136
1137   int GetNameOfSelectedElements(LightApp_SelectionMgr *theMgr,
1138                                 const Handle(SALOME_InteractiveObject)& theIO,
1139                                 QString& theName)
1140   {
1141     theName = "";
1142     if(theIO->hasEntry()){
1143       if(FindActorByEntry(theIO->getEntry())){
1144         TColStd_IndexedMapOfInteger aMapIndex;
1145         theMgr->GetIndexes(theIO,aMapIndex);
1146         typedef std::set<int> TIdContainer;
1147         TIdContainer anIdContainer;
1148         for( int i = 1; i <= aMapIndex.Extent(); i++)
1149           anIdContainer.insert(aMapIndex(i));
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     return -1;
1158   }
1159
1160
1161   int GetNameOfSelectedElements(LightApp_SelectionMgr *theMgr, QString& theName)
1162   {
1163     theName = "";
1164     SALOME_ListIO selected; theMgr->selectedObjects( selected );
1165
1166     if( selected.Extent() == 1){
1167       Handle(SALOME_InteractiveObject) anIO = selected.First();
1168       return GetNameOfSelectedElements(theMgr,anIO,theName);
1169     }
1170     return -1;
1171   }
1172
1173   int GetSelected(LightApp_SelectionMgr*       theMgr,
1174                   TColStd_IndexedMapOfInteger& theMap,
1175                   const bool                   theIsElement)
1176   {
1177     theMap.Clear();
1178     SALOME_ListIO selected; theMgr->selectedObjects( selected );
1179
1180     if ( selected.Extent() == 1 )
1181     {
1182       Handle(SALOME_InteractiveObject) anIO = selected.First();
1183       if ( anIO->hasEntry() ) {
1184         theMgr->GetIndexes( anIO, theMap );
1185       }
1186     }
1187     return theMap.Extent();
1188   }
1189
1190
1191   int GetEdgeNodes( LightApp_SelectionMgr* theMgr, int& theId1, int& theId2 )
1192   {
1193     SALOME_ListIO selected; theMgr->selectedObjects( selected );
1194
1195     if ( selected.Extent() != 1 )
1196       return -1;
1197
1198     Handle(SALOME_InteractiveObject) anIO = selected.First();
1199     if ( anIO.IsNull() || !anIO->hasEntry() )
1200       return -1;
1201
1202     SMESH_Actor *anActor = SMESH::FindActorByEntry( anIO->getEntry() );
1203     if ( anActor == 0 )
1204       return -1;
1205
1206     TColStd_IndexedMapOfInteger aMapIndex;
1207     theMgr->GetIndexes( anIO, aMapIndex );
1208     if ( aMapIndex.Extent() != 2 )
1209       return -1;
1210
1211     int anObjId = -1, anEdgeNum = -1;
1212     for ( int i = 1; i <= aMapIndex.Extent(); i++ ) {
1213       int aVal = aMapIndex( i );
1214       if ( aVal > 0 )
1215         anObjId = aVal;
1216       else
1217         anEdgeNum = abs( aVal );
1218     }
1219
1220     if ( anObjId == -1 || anEdgeNum == -1 )
1221       return -1;
1222
1223     return anActor->GetObject()->GetEdgeNodes( anObjId, anEdgeNum, theId1, theId2 ) ? 1 : -1;
1224   }
1225
1226   void SetControlsPrecision( const long theVal )
1227   {
1228     if( SVTK_ViewWindow* aWnd = SMESH::GetCurrentVtkView() )
1229     {
1230       vtkRenderer *aRenderer = aWnd->getRenderer();
1231       VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
1232       vtkActorCollection *aCollection = aCopy.GetActors();
1233       aCollection->InitTraversal();
1234
1235       while ( vtkActor *anAct = aCollection->GetNextActor())
1236       {
1237         if ( SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>( anAct ) )
1238         {
1239           anActor->SetControlsPrecision( theVal );
1240           anActor->SetControlMode( anActor->GetControlMode() );
1241         }
1242       }
1243
1244     }
1245   }
1246
1247   //----------------------------------------------------------------------------
1248   // internal function
1249   void ComputeBoundsParam( vtkFloatingPointType theBounds[6],
1250                            vtkFloatingPointType theDirection[3],
1251                            vtkFloatingPointType theMinPnt[3],
1252                            vtkFloatingPointType& theMaxBoundPrj,
1253                            vtkFloatingPointType& theMinBoundPrj )
1254   {
1255     //Enlarge bounds in order to avoid conflicts of precision
1256     for(int i = 0; i < 6; i += 2){
1257       static double EPS = 1.0E-3;
1258       vtkFloatingPointType aDelta = (theBounds[i+1] - theBounds[i])*EPS;
1259       theBounds[i] -= aDelta;
1260       theBounds[i+1] += aDelta;
1261     }
1262
1263     vtkFloatingPointType aBoundPoints[8][3] = { {theBounds[0],theBounds[2],theBounds[4]},
1264                                                 {theBounds[1],theBounds[2],theBounds[4]},
1265                                                 {theBounds[0],theBounds[3],theBounds[4]},
1266                                                 {theBounds[1],theBounds[3],theBounds[4]},
1267                                                 {theBounds[0],theBounds[2],theBounds[5]},
1268                                                 {theBounds[1],theBounds[2],theBounds[5]},
1269                                                 {theBounds[0],theBounds[3],theBounds[5]},
1270                                                 {theBounds[1],theBounds[3],theBounds[5]}};
1271
1272     int aMaxId = 0;
1273     theMaxBoundPrj = vtkMath::Dot(theDirection,aBoundPoints[aMaxId]);
1274     theMinBoundPrj = theMaxBoundPrj;
1275     for(int i = 1; i < 8; i++){
1276       vtkFloatingPointType aTmp = vtkMath::Dot(theDirection,aBoundPoints[i]);
1277       if(theMaxBoundPrj < aTmp){
1278         theMaxBoundPrj = aTmp;
1279         aMaxId = i;
1280       }
1281       if(theMinBoundPrj > aTmp){
1282         theMinBoundPrj = aTmp;
1283       }
1284     }
1285     vtkFloatingPointType *aMinPnt = aBoundPoints[aMaxId];
1286     theMinPnt[0] = aMinPnt[0];
1287     theMinPnt[1] = aMinPnt[1];
1288     theMinPnt[2] = aMinPnt[2];
1289   }
1290
1291   // internal function
1292   void DistanceToPosition( vtkFloatingPointType theBounds[6],
1293                            vtkFloatingPointType theDirection[3],
1294                            vtkFloatingPointType theDist,
1295                            vtkFloatingPointType thePos[3] )
1296   {
1297     vtkFloatingPointType aMaxBoundPrj, aMinBoundPrj, aMinPnt[3];
1298     ComputeBoundsParam(theBounds,theDirection,aMinPnt,aMaxBoundPrj,aMinBoundPrj);
1299     vtkFloatingPointType aLength = (aMaxBoundPrj-aMinBoundPrj)*theDist;
1300     thePos[0] = aMinPnt[0]-theDirection[0]*aLength;
1301     thePos[1] = aMinPnt[1]-theDirection[1]*aLength;
1302     thePos[2] = aMinPnt[2]-theDirection[2]*aLength;
1303   }
1304
1305   // internal function (currently unused, left just in case)
1306   void PositionToDistance( vtkFloatingPointType theBounds[6],
1307                            vtkFloatingPointType theDirection[3],
1308                            vtkFloatingPointType thePos[3],
1309                            vtkFloatingPointType& theDist )
1310   {
1311     vtkFloatingPointType aMaxBoundPrj, aMinBoundPrj, aMinPnt[3];
1312     ComputeBoundsParam(theBounds,theDirection,aMinPnt,aMaxBoundPrj,aMinBoundPrj);
1313     vtkFloatingPointType aPrj = vtkMath::Dot(theDirection,thePos);
1314     theDist = (aPrj-aMinBoundPrj)/(aMaxBoundPrj-aMinBoundPrj);
1315   }
1316
1317   bool ComputeClippingPlaneParameters( std::list<vtkActor*> theActorList,
1318                                        vtkFloatingPointType theNormal[3],
1319                                        vtkFloatingPointType theDist,
1320                                        vtkFloatingPointType theBounds[6],
1321                                        vtkFloatingPointType theOrigin[3] )
1322   {
1323     bool anIsOk = false;
1324     theBounds[0] = theBounds[2] = theBounds[4] = VTK_DOUBLE_MAX;
1325     theBounds[1] = theBounds[3] = theBounds[5] = -VTK_DOUBLE_MAX;
1326     std::list<vtkActor*>::iterator anIter = theActorList.begin();
1327     for( ; anIter != theActorList.end(); anIter++ ) {
1328       if( vtkActor* aVTKActor = *anIter ) {
1329         if( SMESH_Actor* anActor = SMESH_Actor::SafeDownCast( aVTKActor ) ) {
1330           vtkFloatingPointType aBounds[6];
1331           anActor->GetUnstructuredGrid()->GetBounds( aBounds );
1332           theBounds[0] = std::min( theBounds[0], aBounds[0] );
1333           theBounds[1] = std::max( theBounds[1], aBounds[1] );
1334           theBounds[2] = std::min( theBounds[2], aBounds[2] );
1335           theBounds[3] = std::max( theBounds[3], aBounds[3] );
1336           theBounds[4] = std::min( theBounds[4], aBounds[4] );
1337           theBounds[5] = std::max( theBounds[5], aBounds[5] );
1338           anIsOk = true;
1339         }
1340       }
1341     }
1342
1343     if( !anIsOk )
1344       return false;
1345
1346     DistanceToPosition( theBounds, theNormal, theDist, theOrigin );
1347     return true;
1348   }
1349
1350 #ifndef DISABLE_PLOT2DVIEWER
1351   //================================================================================
1352   /*!
1353    * \brief Find all SMESH_Actor's in the View Window.
1354    * If actor constains Plot2d_Histogram object remove it from each Plot2d Viewer.
1355    */
1356   //================================================================================
1357
1358   void ClearPlot2Viewers( SUIT_ViewWindow* theWindow ) {
1359     if(SVTK_ViewWindow* aViewWindow = GetVtkViewWindow(theWindow)){
1360       vtkRenderer *aRenderer = aViewWindow->getRenderer();
1361       VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
1362       vtkActorCollection *aCollection = aCopy.GetActors();
1363       aCollection->InitTraversal();
1364       while(vtkActor *anAct = aCollection->GetNextActor()){
1365         if(SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>(anAct)){
1366           if(anActor->hasIO() && anActor->GetPlot2Histogram() ){
1367             ProcessIn2DViewers(anActor,RemoveFrom2dViewer);
1368           }
1369         }
1370       }
1371     }
1372   }
1373
1374 #endif
1375
1376 } // end of namespace SMESH