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;int delta;
 614           SMESH::GetColor( "SMESH", "fill_color", c, delta, "0,170,255|-100"  );
 615           SALOMEDS::Color aColor = aGroup->GetColor();
 616           if( !( aColor.R > 0 || aColor.G > 0 || aColor.B > 0 ))
 617           {
 618             aColor.R = (float)c.red() / 255.0;
 619             aColor.G = (float)c.green() / 255.0;
 620             aColor.B = (float)c.blue() / 255.0;
 621             aGroup->SetColor( aColor );
 622           }
 623           if( aGroup->GetType() == SMESH::NODE )
 624             anActor->SetNodeColor( aColor.R, aColor.G, aColor.B );
 625           else if( aGroup->GetType() == SMESH::EDGE )
 626             anActor->SetEdgeColor( aColor.R, aColor.G, aColor.B );
 627           else if( aGroup->GetType() == SMESH::ELEM0D )
 628             anActor->Set0DColor( aColor.R, aColor.G, aColor.B );
 629           else
 630             anActor->SetSufaceColor( aColor.R, aColor.G, aColor.B, delta );
 631         }
 632       }
 633     }
 634     MESSAGE("CreateActor " << anActor);
 635     if( anActor )
 636       if( SMESHGUI* aSMESHGUI = SMESHGUI::GetSMESHGUI() )
 637         aSMESHGUI->addActorAsObserver( anActor );
 638     return anActor;
 639   }
 640
 641
 642   void DisplayActor( SUIT_ViewWindow *theWnd, SMESH_Actor* theActor){
 643     if(SVTK_ViewWindow* vtkWnd = GetVtkViewWindow(theWnd)){
 644       try {
 645 #if (OCC_VERSION_MAJOR << 16 | OCC_VERSION_MINOR << 8 | OCC_VERSION_MAINTENANCE) > 0x060100
 646         OCC_CATCH_SIGNALS;
 647 #endif
 648         MESSAGE("DisplayActor " << theActor);
 649         vtkWnd->AddActor(theActor);
 650         vtkWnd->Repaint();
 651       }
 652       catch (...) {
 653 #ifdef _DEBUG_
 654         MESSAGE ( "Exception in SMESHGUI_VTKUtils::DisplayActor()" );
 655 #endif
 656         OnVisuException();
 657       }
 658     }
 659   }
 660
 661
 662   void RemoveActor( SUIT_ViewWindow *theWnd, SMESH_Actor* theActor){
 663     if(SVTK_ViewWindow* vtkWnd = GetVtkViewWindow(theWnd)){
 664         MESSAGE("RemoveActor " << theActor);
 665       vtkWnd->RemoveActor(theActor);
 666       if(theActor->hasIO()){
 667         Handle(SALOME_InteractiveObject) anIO = theActor->getIO();
 668         if(anIO->hasEntry()){
 669           std::string anEntry = anIO->getEntry();
 670           SalomeApp_Study* aStudy = dynamic_cast<SalomeApp_Study*>( vtkWnd->getViewManager()->study() );
 671           int aStudyId = aStudy->id();
 672           TVisualObjCont::key_type aKey(aStudyId,anEntry);
 673           VISUAL_OBJ_CONT.erase(aKey);
 674         }
 675       }
 676       theActor->Delete();
 677       vtkWnd->Repaint();
 678     }
 679   }
 680
 681   //================================================================================
 682   /*!
 683    * \brief Return true if there are no SMESH actors in a view
 684    */
 685   //================================================================================
 686
 687   bool noSmeshActors(SUIT_ViewWindow *theWnd)
 688   {
 689     if(SVTK_ViewWindow* aViewWindow = GetVtkViewWindow(theWnd)) {
 690       vtkRenderer *aRenderer = aViewWindow->getRenderer();
 691       VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
 692       vtkActorCollection *aCollection = aCopy.GetActors();
 693       aCollection->InitTraversal();
 694       while(vtkActor *anAct = aCollection->GetNextActor())
 695         if(dynamic_cast<SMESH_Actor*>(anAct))
 696           return false;
 697     }
 698     return true;
 699   }
 700
 701   bool UpdateView(SUIT_ViewWindow *theWnd, EDisplaing theAction, const char* theEntry)
 702   {
 703         //MESSAGE("UpdateView");
 704     bool OK = false;
 705     SVTK_ViewWindow* aViewWnd = GetVtkViewWindow(theWnd);
 706     if (!aViewWnd)
 707       return OK;
 708
 709     SVTK_ViewWindow* vtkWnd = GetVtkViewWindow(theWnd);
 710     if (!vtkWnd)
 711       return OK;
 712
 713     SalomeApp_Study* aStudy = dynamic_cast<SalomeApp_Study*>( vtkWnd->getViewManager()->study() );
 714
 715     if (!aStudy)
 716       return OK;
 717
 718     {
 719       OK = true;
 720       vtkRenderer *aRenderer = aViewWnd->getRenderer();
 721       VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
 722       vtkActorCollection *aCollection = aCopy.GetActors();
 723       aCollection->InitTraversal();
 724
 725       switch (theAction) {
 726       case eDisplayAll: {
 727         while (vtkActor *anAct = aCollection->GetNextActor()) {
 728           if (SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>(anAct)) {
 729                 MESSAGE("--- display " << anActor);
 730             anActor->SetVisibility(true);
 731
 732             if(anActor->hasIO()){
 733               Handle(SALOME_InteractiveObject) anIO = anActor->getIO();
 734               if(anIO->hasEntry()){
 735                 aStudy->setVisibilityState(anIO->getEntry(), Qtx::ShownState);
 736               }
 737             }
 738           }
 739         }
 740         break;
 741       }
 742       case eDisplayOnly:
 743       case eEraseAll: {
 744         //MESSAGE("---case eDisplayOnly");
 745         while (vtkActor *anAct = aCollection->GetNextActor()) {
 746           if (SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>(anAct)) {
 747                 //MESSAGE("--- erase " << anActor);
 748             anActor->SetVisibility(false);
 749           }
 750         }
 751         aStudy->setVisibilityStateForAll(Qtx::HiddenState);
 752       }
 753       default: {
 754         if (SMESH_Actor *anActor = FindActorByEntry(theWnd,theEntry)) {
 755           switch (theAction) {
 756             case eDisplay:
 757             case eDisplayOnly:
 758                 //MESSAGE("--- display " << anActor);
 759               anActor->Update();
 760               anActor->SetVisibility(true);
 761               if (theAction == eDisplayOnly) aRenderer->ResetCameraClippingRange();
 762               aStudy->setVisibilityState(theEntry, Qtx::ShownState);
 763               break;
 764             case eErase:
 765                 //MESSAGE("--- erase " << anActor);
 766               anActor->SetVisibility(false);
 767               aStudy->setVisibilityState(theEntry, Qtx::HiddenState);
 768               break;
 769           }
 770         } else {
 771           switch (theAction) {
 772           case eDisplay:
 773           case eDisplayOnly:
 774             {
 775                 //MESSAGE("---");
 776               SalomeApp_Study* aStudy = dynamic_cast<SalomeApp_Study*>(theWnd->getViewManager()->study());
 777               _PTR(Study) aDocument = aStudy->studyDS();
 778               // Pass non-visual objects (hypotheses, etc.), return true in this case
 779               CORBA::Long anId = aDocument->StudyId();
 780               TVisualObjPtr aVisualObj;
 781               if ( (aVisualObj = GetVisualObj(anId,theEntry)) && aVisualObj->IsValid())
 782               {
 783                 if ((anActor = CreateActor(aDocument,theEntry,true))) {
 784                   bool needFitAll = noSmeshActors(theWnd); // fit for the first object only
 785                   DisplayActor(theWnd,anActor);
 786                   aStudy->setVisibilityState(theEntry, Qtx::ShownState);
 787                   // FitAll(); - PAL16770(Display of a group performs an automatic fit all)
 788                   if (needFitAll) FitAll();
 789                 } else {
 790                   OK = false;
 791                 }
 792               }
 793               break;
 794             }
 795           }
 796         }
 797       }
 798       }
 799     }
 800     return OK;
 801   }
 802
 803
 804   bool UpdateView(EDisplaing theAction, const char* theEntry){
 805         //MESSAGE("UpdateView");
 806     SalomeApp_Study* aStudy = dynamic_cast< SalomeApp_Study* >( GetActiveStudy() );
 807     SalomeApp_Application* app = dynamic_cast< SalomeApp_Application* >( aStudy->application() );
 808     SUIT_ViewWindow *aWnd = app->activeViewManager()->getActiveView();
 809     return UpdateView(aWnd,theAction,theEntry);
 810   }
 811
 812   void UpdateView(){
 813     if(SVTK_ViewWindow* aWnd = SMESH::GetCurrentVtkView()){
 814       LightApp_SelectionMgr* mgr = SMESHGUI::selectionMgr();
 815       SALOME_ListIO selected; mgr->selectedObjects( selected );
 816
 817       if( selected.Extent() == 0){
 818         vtkRenderer* aRenderer = aWnd->getRenderer();
 819         VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
 820         vtkActorCollection *aCollection = aCopy.GetActors();
 821         aCollection->InitTraversal();
 822         while(vtkActor *anAct = aCollection->GetNextActor()){
 823           if(SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>(anAct)){
 824             if(anActor->hasIO())
 825               if (!Update(anActor->getIO(),anActor->GetVisibility()))
 826                 break; // avoid multiple warinings if visu failed
 827           }
 828         }
 829       }else{
 830         SALOME_ListIteratorOfListIO anIter( selected );
 831         for( ; anIter.More(); anIter.Next()){
 832           Handle(SALOME_InteractiveObject) anIO = anIter.Value();
 833           if ( !Update(anIO,true) )
 834             break; // avoid multiple warinings if visu failed
 835         }
 836       }
 837       RepaintCurrentView();
 838     }
 839   }
 840
 841
 842   bool Update(const Handle(SALOME_InteractiveObject)& theIO, bool theDisplay)
 843   {
 844         MESSAGE("Update");
 845     _PTR(Study) aStudy = GetActiveStudyDocument();
 846     CORBA::Long anId = aStudy->StudyId();
 847     if ( TVisualObjPtr aVisualObj = SMESH::GetVisualObj(anId,theIO->getEntry())) {
 848       if ( theDisplay )
 849         UpdateView(SMESH::eDisplay,theIO->getEntry());
 850       return true;
 851     }
 852     return false;
 853   }
 854
 855   bool UpdateNulData(const Handle(SALOME_InteractiveObject)& theIO, bool theDisplay)
 856   {
 857         MESSAGE("UpdateNulData");
 858     _PTR(Study) aStudy = GetActiveStudyDocument();
 859     CORBA::Long anId = aStudy->StudyId();
 860     if ( TVisualObjPtr aVisualObj = SMESH::GetVisualObj(anId,theIO->getEntry(), true)) {
 861       if ( theDisplay )
 862         UpdateView(SMESH::eDisplay,theIO->getEntry());
 863       return true;
 864     }
 865     return false;
 866   }
 867
 868   void UpdateSelectionProp( SMESHGUI* theModule ) {
 869     if( !theModule )
 870       return;
 871
 872     SalomeApp_Application* app = dynamic_cast< SalomeApp_Application* >( theModule->application() );
 873     if( !app )
 874     {
 875       MESSAGE( "UpdateSelectionProp: Application is null" );
 876       return;
 877     }
 878
 879     SUIT_ViewManager* vm = app->activeViewManager();
 880     if( !vm )
 881     {
 882       MESSAGE( "UpdateSelectionProp: View manager is null" );
 883       return;
 884     }
 885
 886     QVector<SUIT_ViewWindow*> views = vm->getViews();
 887
 888     SUIT_ResourceMgr* mgr = SMESH::GetResourceMgr( theModule );
 889     if( !mgr )
 890     {
 891       MESSAGE( "UpdateSelectionProp: Resource manager is null" );
 892       return;
 893     }
 894
 895     QColor aHiColor = mgr->colorValue( "SMESH", "selection_object_color", Qt::white ),
 896            aSelColor = mgr->colorValue( "SMESH", "selection_element_color", Qt::yellow ),
 897            aPreColor = mgr->colorValue( "SMESH", "highlight_color", Qt::cyan );
 898
 899     int aElem0DSize = mgr->integerValue("SMESH", "elem0d_size", 5);
 900     int aLineWidth  = mgr->integerValue("SMESH", "element_width", 1);
 901     int maxSize = aElem0DSize;
 902     if (aElem0DSize > maxSize) maxSize = aElem0DSize;
 903     if (aLineWidth > maxSize) maxSize = aLineWidth;
 904
 905     double SP1 = mgr->doubleValue( "SMESH", "selection_precision_node", 0.025 ),
 906            SP2 = mgr->doubleValue( "SMESH", "selection_precision_element", 0.001 ),
 907            SP3 = mgr->doubleValue( "SMESH", "selection_precision_object", 0.025 );
 908
 909     for ( int i=0, n=views.count(); i<n; i++ ){
 910       // update VTK viewer properties
 911       if(SVTK_ViewWindow* aVtkView = GetVtkViewWindow( views[i] )){
 912         // mesh element selection
 913         aVtkView->SetSelectionProp(aSelColor.red()/255.,
 914                                    aSelColor.green()/255.,
 915                                    aSelColor.blue()/255.);
 916         // tolerances
 917         aVtkView->SetSelectionTolerance(SP1, SP2, SP3);
 918
 919         // pre-selection
 920         aVtkView->SetPreselectionProp(aPreColor.red()/255.,
 921                                       aPreColor.green()/255.,
 922                                       aPreColor.blue()/255.);
 923         // update actors
 924         vtkRenderer* aRenderer = aVtkView->getRenderer();
 925         VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
 926         vtkActorCollection *aCollection = aCopy.GetActors();
 927         aCollection->InitTraversal();
 928         while(vtkActor *anAct = aCollection->GetNextActor()){
 929           if(SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>(anAct)){
 930             anActor->SetHighlightColor(aHiColor.red()/255.,
 931                                        aHiColor.green()/255.,
 932                                        aHiColor.blue()/255.);
 933             anActor->SetPreHighlightColor(aPreColor.red()/255.,
 934                                           aPreColor.green()/255.,
 935                                           aPreColor.blue()/255.);
 936           }
 937         }
 938       }
 939     }
 940   }
 941
 942
 943   //----------------------------------------------------------------------------
 944   SVTK_Selector*
 945   GetSelector(SUIT_ViewWindow *theWindow)
 946   {
 947     if(SVTK_ViewWindow* aWnd = GetVtkViewWindow(theWindow))
 948       return aWnd->GetSelector();
 949
 950     return NULL;
 951   }
 952
 953   void SetFilter(const Handle(VTKViewer_Filter)& theFilter,
 954                  SVTK_Selector* theSelector)
 955   {
 956     if (theSelector)
 957       theSelector->SetFilter(theFilter);
 958   }
 959
 960   Handle(VTKViewer_Filter) GetFilter(int theId, SVTK_Selector* theSelector)
 961   {
 962     return theSelector->GetFilter(theId);
 963   }
 964
 965   bool IsFilterPresent(int theId, SVTK_Selector* theSelector)
 966   {
 967     return theSelector->IsFilterPresent(theId);
 968   }
 969
 970   void RemoveFilter(int theId, SVTK_Selector* theSelector)
 971   {
 972     theSelector->RemoveFilter(theId);
 973   }
 974
 975   void RemoveFilters(SVTK_Selector* theSelector)
 976   {
 977     for ( int id = SMESH::NodeFilter; theSelector && id < SMESH::LastFilter; id++ )
 978       theSelector->RemoveFilter( id );
 979   }
 980
 981   bool IsValid(SALOME_Actor* theActor, int theCellId,
 982                SVTK_Selector* theSelector)
 983   {
 984     return theSelector->IsValid(theActor,theCellId);
 985   }
 986
 987
 988   //----------------------------------------------------------------------------
 989   void SetPointRepresentation(bool theIsVisible){
 990     if(SVTK_ViewWindow* aViewWindow = GetCurrentVtkView()){
 991       vtkRenderer *aRenderer = aViewWindow->getRenderer();
 992       VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
 993       vtkActorCollection *aCollection = aCopy.GetActors();
 994       aCollection->InitTraversal();
 995       while(vtkActor *anAct = aCollection->GetNextActor()){
 996         if(SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>(anAct)){
 997           if(anActor->GetVisibility()){
 998             anActor->SetPointRepresentation(theIsVisible);
 999           }
1000         }
1001       }
1002       RepaintCurrentView();
1003     }
1004   }
1005
1006
1007   void SetPickable(SMESH_Actor* theActor){
1008     if(SVTK_ViewWindow* aWnd = GetCurrentVtkView()){
1009       int anIsAllPickable = (theActor == NULL);
1010       vtkRenderer *aRenderer = aWnd->getRenderer();
1011       VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
1012       vtkActorCollection *aCollection = aCopy.GetActors();
1013       aCollection->InitTraversal();
1014       while(vtkActor *anAct = aCollection->GetNextActor()){
1015         if(SALOME_Actor *anActor = dynamic_cast<SALOME_Actor*>(anAct)){
1016           if(anActor->GetVisibility()){
1017             anActor->SetPickable(anIsAllPickable);
1018           }
1019         }
1020       }
1021       if(theActor)
1022         theActor->SetPickable(!anIsAllPickable);
1023       RepaintCurrentView();
1024     }
1025   }
1026
1027
1028   //----------------------------------------------------------------------------
1029   int GetNameOfSelectedNodes(SVTK_Selector* theSelector,
1030                              const Handle(SALOME_InteractiveObject)& theIO,
1031                              QString& theName)
1032   {
1033     theName = "";
1034     TColStd_IndexedMapOfInteger aMapIndex;
1035     theSelector->GetIndex(theIO,aMapIndex);
1036
1037     for(int i = 1; i <= aMapIndex.Extent(); i++)
1038       theName += QString(" %1").arg(aMapIndex(i));
1039
1040     return aMapIndex.Extent();
1041   }
1042
1043   int GetNameOfSelectedElements(SVTK_Selector* theSelector,
1044                                 const Handle(SALOME_InteractiveObject)& theIO,
1045                                 QString& theName)
1046   {
1047     theName = "";
1048     TColStd_IndexedMapOfInteger aMapIndex;
1049     theSelector->GetIndex(theIO,aMapIndex);
1050
1051     typedef std::set<int> TIdContainer;
1052     TIdContainer anIdContainer;
1053     for( int i = 1; i <= aMapIndex.Extent(); i++)
1054       anIdContainer.insert(aMapIndex(i));
1055
1056     TIdContainer::const_iterator anIter = anIdContainer.begin();
1057     for( ; anIter != anIdContainer.end(); anIter++)
1058       theName += QString(" %1").arg(*anIter);
1059
1060     return aMapIndex.Extent();
1061   }
1062
1063
1064   int GetEdgeNodes(SVTK_Selector* theSelector,
1065                    const TVisualObjPtr& theVisualObject,
1066                    int& theId1,
1067                    int& theId2)
1068   {
1069     const SALOME_ListIO& selected = theSelector->StoredIObjects();
1070
1071     if ( selected.Extent() != 1 )
1072       return -1;
1073
1074     Handle(SALOME_InteractiveObject) anIO = selected.First();
1075     if ( anIO.IsNull() || !anIO->hasEntry() )
1076       return -1;
1077
1078     TColStd_IndexedMapOfInteger aMapIndex;
1079     theSelector->GetIndex( anIO, aMapIndex );
1080     if ( aMapIndex.Extent() != 2 )
1081       return -1;
1082
1083     int anObjId = -1, anEdgeNum = -1;
1084     for ( int i = 1; i <= aMapIndex.Extent(); i++ ) {
1085       int aVal = aMapIndex( i );
1086       if ( aVal > 0 )
1087         anObjId = aVal;
1088       else
1089         anEdgeNum = abs( aVal ) - 1;
1090     }
1091
1092     if ( anObjId == -1 || anEdgeNum == -1 )
1093       return -1;
1094
1095     return theVisualObject->GetEdgeNodes( anObjId, anEdgeNum, theId1, theId2 ) ? 1 : -1;
1096   }
1097
1098   //----------------------------------------------------------------------------
1099   int GetNameOfSelectedNodes(LightApp_SelectionMgr *theMgr,
1100                              const Handle(SALOME_InteractiveObject)& theIO,
1101                              QString& theName)
1102   {
1103     theName = "";
1104     if(theIO->hasEntry()){
1105       if(FindActorByEntry(theIO->getEntry())){
1106         TColStd_IndexedMapOfInteger aMapIndex;
1107         theMgr->GetIndexes(theIO,aMapIndex);
1108         for(int i = 1; i <= aMapIndex.Extent(); i++){
1109           theName += QString(" %1").arg(aMapIndex(i));
1110         }
1111         return aMapIndex.Extent();
1112       }
1113     }
1114     return -1;
1115   }
1116
1117   int GetNameOfSelectedNodes(LightApp_SelectionMgr *theMgr, QString& theName){
1118     theName = "";
1119     SALOME_ListIO selected; theMgr->selectedObjects( selected );
1120     if(selected.Extent() == 1){
1121       Handle(SALOME_InteractiveObject) anIO = selected.First();
1122       return GetNameOfSelectedNodes(theMgr,anIO,theName);
1123     }
1124     return -1;
1125   }
1126
1127
1128   int GetNameOfSelectedElements(LightApp_SelectionMgr *theMgr,
1129                                 const Handle(SALOME_InteractiveObject)& theIO,
1130                                 QString& theName)
1131   {
1132     theName = "";
1133     if(theIO->hasEntry()){
1134       if(FindActorByEntry(theIO->getEntry())){
1135         TColStd_IndexedMapOfInteger aMapIndex;
1136         theMgr->GetIndexes(theIO,aMapIndex);
1137         typedef std::set<int> TIdContainer;
1138         TIdContainer anIdContainer;
1139         for( int i = 1; i <= aMapIndex.Extent(); i++)
1140           anIdContainer.insert(aMapIndex(i));
1141         TIdContainer::const_iterator anIter = anIdContainer.begin();
1142         for( ; anIter != anIdContainer.end(); anIter++){
1143           theName += QString(" %1").arg(*anIter);
1144         }
1145         return aMapIndex.Extent();
1146       }
1147     }
1148     return -1;
1149   }
1150
1151
1152   int GetNameOfSelectedElements(LightApp_SelectionMgr *theMgr, QString& theName)
1153   {
1154     theName = "";
1155     SALOME_ListIO selected; theMgr->selectedObjects( selected );
1156
1157     if( selected.Extent() == 1){
1158       Handle(SALOME_InteractiveObject) anIO = selected.First();
1159       return GetNameOfSelectedElements(theMgr,anIO,theName);
1160     }
1161     return -1;
1162   }
1163
1164   int GetSelected(LightApp_SelectionMgr*       theMgr,
1165                   TColStd_IndexedMapOfInteger& theMap,
1166                   const bool                   theIsElement)
1167   {
1168     theMap.Clear();
1169     SALOME_ListIO selected; theMgr->selectedObjects( selected );
1170
1171     if ( selected.Extent() == 1 )
1172     {
1173       Handle(SALOME_InteractiveObject) anIO = selected.First();
1174       if ( anIO->hasEntry() ) {
1175         theMgr->GetIndexes( anIO, theMap );
1176       }
1177     }
1178     return theMap.Extent();
1179   }
1180
1181
1182   int GetEdgeNodes( LightApp_SelectionMgr* theMgr, int& theId1, int& theId2 )
1183   {
1184     SALOME_ListIO selected; theMgr->selectedObjects( selected );
1185
1186     if ( selected.Extent() != 1 )
1187       return -1;
1188
1189     Handle(SALOME_InteractiveObject) anIO = selected.First();
1190     if ( anIO.IsNull() || !anIO->hasEntry() )
1191       return -1;
1192
1193     SMESH_Actor *anActor = SMESH::FindActorByEntry( anIO->getEntry() );
1194     if ( anActor == 0 )
1195       return -1;
1196
1197     TColStd_IndexedMapOfInteger aMapIndex;
1198     theMgr->GetIndexes( anIO, aMapIndex );
1199     if ( aMapIndex.Extent() != 2 )
1200       return -1;
1201
1202     int anObjId = -1, anEdgeNum = -1;
1203     for ( int i = 1; i <= aMapIndex.Extent(); i++ ) {
1204       int aVal = aMapIndex( i );
1205       if ( aVal > 0 )
1206         anObjId = aVal;
1207       else
1208         anEdgeNum = abs( aVal );
1209     }
1210
1211     if ( anObjId == -1 || anEdgeNum == -1 )
1212       return -1;
1213
1214     return anActor->GetObject()->GetEdgeNodes( anObjId, anEdgeNum, theId1, theId2 ) ? 1 : -1;
1215   }
1216
1217   void SetControlsPrecision( const long theVal )
1218   {
1219     if( SVTK_ViewWindow* aWnd = SMESH::GetCurrentVtkView() )
1220     {
1221       vtkRenderer *aRenderer = aWnd->getRenderer();
1222       VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
1223       vtkActorCollection *aCollection = aCopy.GetActors();
1224       aCollection->InitTraversal();
1225
1226       while ( vtkActor *anAct = aCollection->GetNextActor())
1227       {
1228         if ( SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>( anAct ) )
1229         {
1230           anActor->SetControlsPrecision( theVal );
1231           anActor->SetControlMode( anActor->GetControlMode() );
1232         }
1233       }
1234
1235     }
1236   }
1237
1238   //----------------------------------------------------------------------------
1239   // internal function
1240   void ComputeBoundsParam( vtkFloatingPointType theBounds[6],
1241                            vtkFloatingPointType theDirection[3],
1242                            vtkFloatingPointType theMinPnt[3],
1243                            vtkFloatingPointType& theMaxBoundPrj,
1244                            vtkFloatingPointType& theMinBoundPrj )
1245   {
1246     //Enlarge bounds in order to avoid conflicts of precision
1247     for(int i = 0; i < 6; i += 2){
1248       static double EPS = 1.0E-3;
1249       vtkFloatingPointType aDelta = (theBounds[i+1] - theBounds[i])*EPS;
1250       theBounds[i] -= aDelta;
1251       theBounds[i+1] += aDelta;
1252     }
1253
1254     vtkFloatingPointType aBoundPoints[8][3] = { {theBounds[0],theBounds[2],theBounds[4]},
1255                                                 {theBounds[1],theBounds[2],theBounds[4]},
1256                                                 {theBounds[0],theBounds[3],theBounds[4]},
1257                                                 {theBounds[1],theBounds[3],theBounds[4]},
1258                                                 {theBounds[0],theBounds[2],theBounds[5]},
1259                                                 {theBounds[1],theBounds[2],theBounds[5]},
1260                                                 {theBounds[0],theBounds[3],theBounds[5]},
1261                                                 {theBounds[1],theBounds[3],theBounds[5]}};
1262
1263     int aMaxId = 0;
1264     theMaxBoundPrj = vtkMath::Dot(theDirection,aBoundPoints[aMaxId]);
1265     theMinBoundPrj = theMaxBoundPrj;
1266     for(int i = 1; i < 8; i++){
1267       vtkFloatingPointType aTmp = vtkMath::Dot(theDirection,aBoundPoints[i]);
1268       if(theMaxBoundPrj < aTmp){
1269         theMaxBoundPrj = aTmp;
1270         aMaxId = i;
1271       }
1272       if(theMinBoundPrj > aTmp){
1273         theMinBoundPrj = aTmp;
1274       }
1275     }
1276     vtkFloatingPointType *aMinPnt = aBoundPoints[aMaxId];
1277     theMinPnt[0] = aMinPnt[0];
1278     theMinPnt[1] = aMinPnt[1];
1279     theMinPnt[2] = aMinPnt[2];
1280   }
1281
1282   // internal function
1283   void DistanceToPosition( vtkFloatingPointType theBounds[6],
1284                            vtkFloatingPointType theDirection[3],
1285                            vtkFloatingPointType theDist,
1286                            vtkFloatingPointType thePos[3] )
1287   {
1288     vtkFloatingPointType aMaxBoundPrj, aMinBoundPrj, aMinPnt[3];
1289     ComputeBoundsParam(theBounds,theDirection,aMinPnt,aMaxBoundPrj,aMinBoundPrj);
1290     vtkFloatingPointType aLength = (aMaxBoundPrj-aMinBoundPrj)*theDist;
1291     thePos[0] = aMinPnt[0]-theDirection[0]*aLength;
1292     thePos[1] = aMinPnt[1]-theDirection[1]*aLength;
1293     thePos[2] = aMinPnt[2]-theDirection[2]*aLength;
1294   }
1295
1296   // internal function (currently unused, left just in case)
1297   void PositionToDistance( vtkFloatingPointType theBounds[6],
1298                            vtkFloatingPointType theDirection[3],
1299                            vtkFloatingPointType thePos[3],
1300                            vtkFloatingPointType& theDist )
1301   {
1302     vtkFloatingPointType aMaxBoundPrj, aMinBoundPrj, aMinPnt[3];
1303     ComputeBoundsParam(theBounds,theDirection,aMinPnt,aMaxBoundPrj,aMinBoundPrj);
1304     vtkFloatingPointType aPrj = vtkMath::Dot(theDirection,thePos);
1305     theDist = (aPrj-aMinBoundPrj)/(aMaxBoundPrj-aMinBoundPrj);
1306   }
1307
1308   bool ComputeClippingPlaneParameters( std::list<vtkActor*> theActorList,
1309                                        vtkFloatingPointType theNormal[3],
1310                                        vtkFloatingPointType theDist,
1311                                        vtkFloatingPointType theBounds[6],
1312                                        vtkFloatingPointType theOrigin[3] )
1313   {
1314     bool anIsOk = false;
1315     theBounds[0] = theBounds[2] = theBounds[4] = VTK_DOUBLE_MAX;
1316     theBounds[1] = theBounds[3] = theBounds[5] = -VTK_DOUBLE_MAX;
1317     std::list<vtkActor*>::iterator anIter = theActorList.begin();
1318     for( ; anIter != theActorList.end(); anIter++ ) {
1319       if( vtkActor* aVTKActor = *anIter ) {
1320         if( SMESH_Actor* anActor = SMESH_Actor::SafeDownCast( aVTKActor ) ) {
1321           vtkFloatingPointType aBounds[6];
1322           anActor->GetUnstructuredGrid()->GetBounds( aBounds );
1323           theBounds[0] = std::min( theBounds[0], aBounds[0] );
1324           theBounds[1] = std::max( theBounds[1], aBounds[1] );
1325           theBounds[2] = std::min( theBounds[2], aBounds[2] );
1326           theBounds[3] = std::max( theBounds[3], aBounds[3] );
1327           theBounds[4] = std::min( theBounds[4], aBounds[4] );
1328           theBounds[5] = std::max( theBounds[5], aBounds[5] );
1329           anIsOk = true;
1330         }
1331       }
1332     }
1333
1334     if( !anIsOk )
1335       return false;
1336
1337     DistanceToPosition( theBounds, theNormal, theDist, theOrigin );
1338     return true;
1339   }
1340
1341 #ifndef DISABLE_PLOT2DVIEWER
1342   //================================================================================
1343   /*!
1344    * \brief Find all SMESH_Actor's in the View Window.
1345    * If actor constains Plot2d_Histogram object remove it from each Plot2d Viewer.
1346    */
1347   //================================================================================
1348
1349   void ClearPlot2Viewers( SUIT_ViewWindow* theWindow ) {
1350     if(SVTK_ViewWindow* aViewWindow = GetVtkViewWindow(theWindow)){
1351       vtkRenderer *aRenderer = aViewWindow->getRenderer();
1352       VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
1353       vtkActorCollection *aCollection = aCopy.GetActors();
1354       aCollection->InitTraversal();
1355       while(vtkActor *anAct = aCollection->GetNextActor()){
1356         if(SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>(anAct)){
1357           if(anActor->hasIO() && anActor->GetPlot2Histogram() ){
1358             ProcessIn2DViewers(anActor,RemoveFrom2dViewer);
1359           }
1360         }
1361       }
1362     }
1363   }
1364
1365 #endif
1366
1367 } // end of namespace SMESH