src/SMESHGUI/SMESHGUI_VTKUtils.cxx

   1 // Copyright (C) 2007-2016  CEA/DEN, EDF R&D, OPEN CASCADE
   2 //
   3 // Copyright (C) 2003-2007  OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
   4 // CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
   5 //
   6 // This library is free software; you can redistribute it and/or
   7 // modify it under the terms of the GNU Lesser General Public
   8 // License as published by the Free Software Foundation; either
   9 // version 2.1 of the License, or (at your option) any later version.
  10 //
  11 // This library is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 // Lesser General Public License for more details.
  15 //
  16 // You should have received a copy of the GNU Lesser General Public
  17 // License along with this library; if not, write to the Free Software
  18 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  19 //
  20 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
  21 //
  22
  23 // SMESH SMESHGUI : GUI for SMESH component
  24 // File   : SMESHGUI_VTKUtils.cxx
  25 // Author : Open CASCADE S.A.S.
  26 // SMESH includes
  27 //
  28 #include "SMESHGUI_VTKUtils.h"
  29
  30 #include "SMESHGUI.h"
  31 #include "SMESHGUI_Filter.h"
  32 #include "SMESHGUI_Utils.h"
  33 #include "SMDS_Mesh.hxx"
  34 #include "SMESH_Actor.h"
  35 #include "SMESH_ActorProps.h"
  36 #include "SMESH_ActorUtils.h"
  37 #include "SMESH_CellLabelActor.h"
  38 #include "SMESH_ControlsDef.hxx"
  39 #include "SMESH_NodeLabelActor.h"
  40 #include "SMESH_ObjectDef.h"
  41
  42 // SALOME GUI includes
  43 #include <SUIT_Desktop.h>
  44 #include <SUIT_Session.h>
  45 #include <SUIT_MessageBox.h>
  46 #include <SUIT_ViewManager.h>
  47 #include <SUIT_ResourceMgr.h>
  48
  49 #include <SALOME_ListIO.hxx>
  50
  51 #include <SVTK_Selector.h>
  52 #include <SVTK_ViewModel.h>
  53 #include <SVTK_ViewWindow.h>
  54
  55 #include <VTKViewer_Algorithm.h>
  56
  57 #include <LightApp_SelectionMgr.h>
  58 #include <SalomeApp_Application.h>
  59 #include <SalomeApp_Study.h>
  60
  61 // SALOME KERNEL includes
  62 #include <utilities.h>
  63
  64 // IDL includes
  65 #include <SALOMEconfig.h>
  66 #include CORBA_CLIENT_HEADER(SMESH_Mesh)
  67 #include CORBA_CLIENT_HEADER(SMESH_Group)
  68
  69 // VTK includes
  70 #include <vtkMath.h>
  71 #include <vtkRenderer.h>
  72 #include <vtkActorCollection.h>
  73 #include <vtkUnstructuredGrid.h>
  74
  75 // OCCT includes
  76 #include <Standard_ErrorHandler.hxx>
  77
  78 namespace SMESH
  79 {
  80   typedef std::map<std::string,TVisualObjPtr> TVisualObjCont;
  81   static TVisualObjCont VISUAL_OBJ_CONT;
  82
  83   //=============================================================================
  84   /*!
  85    * \brief Allocate some memory at construction and release it at destruction.
  86    * Is used to be able to continue working after mesh generation or visualization
  87    * break due to lack of memory
  88    */
  89   //=============================================================================
  90
  91   struct MemoryReserve
  92   {
  93     char* myBuf;
  94     MemoryReserve(): myBuf( new char[1024*1024*1] ){} // 1M
  95     void Free() { if (myBuf) { delete [] myBuf; myBuf = 0; }}
  96     ~MemoryReserve() { Free(); }
  97   };
  98   static MemoryReserve* theVISU_MemoryReserve = new MemoryReserve;
  99
 100   //================================================================================
 101   /*!
 102    * \brief Remove VisualObj and its actor from all views
 103    */
 104   //================================================================================
 105
 106   void RemoveVisualObjectWithActors( const char* theEntry, bool fromAllViews )
 107   {
 108     SalomeApp_Application* app = dynamic_cast<SalomeApp_Application*>(SUIT_Session::session()->activeApplication());
 109     if(!app)
 110       return;
 111     SalomeApp_Study* aStudy  = dynamic_cast<SalomeApp_Study*>(app->activeStudy());
 112     if(!aStudy)
 113       return;
 114     ViewManagerList aList;
 115
 116     if(fromAllViews) {
 117       app->viewManagers(SVTK_Viewer::Type() , aList);
 118     } else {
 119       SUIT_ViewManager* aVM = app->getViewManager(SVTK_Viewer::Type(), true);
 120       if(aVM)
 121         aList.append(aVM);
 122     }
 123     bool actorRemoved = false;
 124     ViewManagerList::ConstIterator it = aList.begin();
 125     SUIT_ViewManager* aViewManager = 0;
 126     for( ; it!=aList.end();it++) {
 127       aViewManager = *it;
 128       QVector<SUIT_ViewWindow*> views = aViewManager->getViews();
 129       for ( int iV = 0; iV < views.count(); ++iV ) {
 130         if ( SMESH_Actor* actor = FindActorByEntry( views[iV], theEntry)) {
 131           if(SVTK_ViewWindow* vtkWnd = GetVtkViewWindow(views[iV])) {
 132             vtkWnd->RemoveActor(actor);
 133             actorRemoved = true;
 134           }
 135           actor->Delete();
 136         }
 137       }
 138     }
 139
 140     TVisualObjCont::iterator anIter = VISUAL_OBJ_CONT.find(theEntry);
 141     if(anIter != VISUAL_OBJ_CONT.end()) {
 142       // for unknown reason, object destructor is not called, so clear object manually
 143       anIter->second->GetUnstructuredGrid()->SetCells(0,0,0,0,0);
 144       anIter->second->GetUnstructuredGrid()->SetPoints(0);
 145     }
 146     VISUAL_OBJ_CONT.erase(theEntry);
 147
 148     if(actorRemoved)
 149       aStudy->setVisibilityState(theEntry, Qtx::HiddenState);
 150   }
 151   //================================================================================
 152   /*!
 153    * \brief Remove all VisualObjs and their actors from all views
 154    */
 155   //================================================================================
 156
 157   void RemoveAllObjectsWithActors()
 158   {
 159     SalomeApp_Application* app = dynamic_cast<SalomeApp_Application*>
 160       ( SUIT_Session::session()->activeApplication() );
 161     if (!app) return;
 162     ViewManagerList viewMgrs = app->viewManagers();
 163     for ( int iM = 0; iM < viewMgrs.count(); ++iM ) {
 164       SUIT_ViewManager* aViewManager = viewMgrs.at( iM );
 165       if ( aViewManager && aViewManager->getType() == SVTK_Viewer::Type()) {
 166         QVector<SUIT_ViewWindow*> views = aViewManager->getViews();
 167         for ( int iV = 0; iV < views.count(); ++iV ) {
 168           if(SVTK_ViewWindow* vtkWnd = GetVtkViewWindow(views[iV])) {
 169             vtkRenderer *aRenderer = vtkWnd->getRenderer();
 170             VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
 171             vtkActorCollection *actors = aCopy.GetActors();
 172             for (int i = 0; i < actors->GetNumberOfItems(); ++i ) {
 173               // size of actors changes inside the loop
 174               if (SMESH_Actor *actor = dynamic_cast<SMESH_Actor*>(actors->GetItemAsObject(i)))
 175               {
 176                 vtkWnd->RemoveActor(actor);
 177                 actor->Delete();
 178               }
 179             }
 180           }
 181         }
 182       }
 183     }
 184     TVisualObjCont::iterator anIter = VISUAL_OBJ_CONT.begin();
 185     for ( ; anIter != VISUAL_OBJ_CONT.end(); ++anIter ) {
 186       // for unknown reason, object destructor is not called, so clear object manually
 187       anIter->second->GetUnstructuredGrid()->SetCells(0,0,0,0,0);
 188       anIter->second->GetUnstructuredGrid()->SetPoints(0);
 189     }
 190     VISUAL_OBJ_CONT.clear();
 191   }
 192
 193   //================================================================================
 194   /*!
 195    * \brief Remove all VisualObjs of a study
 196    */
 197   //================================================================================
 198
 199   void RemoveVisuData()
 200   {
 201     SalomeApp_Application* app = dynamic_cast<SalomeApp_Application*>
 202       ( SUIT_Session::session()->activeApplication() );
 203     if (!app) return;
 204     ViewManagerList viewMgrs = app->viewManagers();
 205     for ( int iM = 0; iM < viewMgrs.count(); ++iM ) {
 206       SUIT_ViewManager* aViewManager = viewMgrs.at( iM );
 207       if ( aViewManager && aViewManager->getType() == SVTK_Viewer::Type() ) {
 208         QVector<SUIT_ViewWindow*> views = aViewManager->getViews();
 209         for ( int iV = 0; iV < views.count(); ++iV ) {
 210           if(SVTK_ViewWindow* vtkWnd = GetVtkViewWindow(views[iV])) {
 211             vtkRenderer *aRenderer = vtkWnd->getRenderer();
 212             VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
 213             vtkActorCollection *actors = aCopy.GetActors();
 214             for (int i = 0; i < actors->GetNumberOfItems(); ++i ) {
 215               // size of actors changes inside the loop
 216               if(SMESH_Actor *actor = dynamic_cast<SMESH_Actor*>(actors->GetItemAsObject(i)))
 217               {
 218                 vtkWnd->RemoveActor(actor);
 219                 actor->Delete();
 220               }
 221             }
 222           }
 223         }
 224       }
 225     }
 226     TVisualObjCont::iterator anIter = VISUAL_OBJ_CONT.begin();
 227     for ( ; anIter != VISUAL_OBJ_CONT.end(); ) {
 228       // for unknown reason, object destructor is not called, so clear object manually
 229       anIter->second->GetUnstructuredGrid()->SetCells(0,0,0,0,0);
 230       anIter->second->GetUnstructuredGrid()->SetPoints(0);
 231       VISUAL_OBJ_CONT.erase( anIter++ ); // anIter++ returns a copy of self before incrementing
 232     }
 233   }
 234
 235   //================================================================================
 236   /*!
 237    * \brief Notify the user on problems during visualization
 238    */
 239   //================================================================================
 240
 241   void OnVisuException()
 242   {
 243     try {
 244       OCC_CATCH_SIGNALS;
 245       // PAL16774 (Crash after display of many groups). Salome sometimes crashes just
 246       // after or at showing this message, so we do an additional check of available memory
 247 //       char* buf = new char[100*1024];
 248 //       delete [] buf;
 249       SUIT_MessageBox::warning(SMESHGUI::desktop(), QObject::tr("SMESH_WRN_WARNING"),
 250                                QObject::tr("SMESH_VISU_PROBLEM"));
 251     } catch (...) {
 252       // no more memory at all: last resort
 253       MESSAGE_BEGIN ( "SMESHGUI_VTKUtils::OnVisuException(), exception even at showing a message!!!" <<
 254                       std::endl << "Try to remove all visual data..." );
 255       if (theVISU_MemoryReserve) {
 256         delete theVISU_MemoryReserve;
 257         theVISU_MemoryReserve = 0;
 258       }
 259       RemoveAllObjectsWithActors();
 260       SUIT_MessageBox::warning(SMESHGUI::desktop(), QObject::tr("SMESH_WRN_WARNING"),
 261                                QObject::tr("SMESH_VISU_PROBLEM_CLEAR"));
 262       MESSAGE_END ( "...done" );
 263     }
 264   }
 265   //================================================================================
 266   /*!
 267    * \brief Returns an updated visual object
 268    */
 269   //================================================================================
 270
 271   TVisualObjPtr GetVisualObj(const char* theEntry, bool nulData){
 272     TVisualObjPtr aVisualObj;
 273     try{
 274       OCC_CATCH_SIGNALS;
 275       TVisualObjCont::iterator anIter = VISUAL_OBJ_CONT.find(theEntry);
 276       if(anIter != VISUAL_OBJ_CONT.end()){
 277         aVisualObj = anIter->second;
 278       }else{
 279         SalomeApp_Application* app =
 280           dynamic_cast<SalomeApp_Application*>( SMESHGUI::activeStudy()->application() );
 281         _PTR(Study) aStudy = SMESH::getStudy();
 282         _PTR(SObject) aSObj = aStudy->FindObjectID(theEntry);
 283         if(aSObj){
 284           _PTR(GenericAttribute) anAttr;
 285           if(aSObj->FindAttribute(anAttr,"AttributeIOR")){
 286             _PTR(AttributeIOR) anIOR = anAttr;
 287             CORBA::String_var aVal = anIOR->Value().c_str();
 288             CORBA::Object_var anObj = app->orb()->string_to_object( aVal.in() );
 289             if(!CORBA::is_nil(anObj)){
 290               //Try narrow to SMESH_Mesh interface
 291               SMESH::SMESH_Mesh_var aMesh = SMESH::SMESH_Mesh::_narrow(anObj);
 292               if(!aMesh->_is_nil()){
 293                 aVisualObj.reset(new SMESH_MeshObj(aMesh));
 294                 TVisualObjCont::value_type aValue(theEntry,aVisualObj);
 295                 VISUAL_OBJ_CONT.insert(aValue);
 296               }
 297               //Try narrow to SMESH_Group interface
 298               SMESH::SMESH_GroupBase_var aGroup = SMESH::SMESH_GroupBase::_narrow(anObj);
 299               if(!aGroup->_is_nil()){
 300                 _PTR(SObject) aFatherSObj = aSObj->GetFather();
 301                 if(!aFatherSObj) return aVisualObj;
 302                 aFatherSObj = aFatherSObj->GetFather();
 303                 if(!aFatherSObj) return aVisualObj;
 304                 CORBA::String_var anEntry = aFatherSObj->GetID().c_str();
 305                 TVisualObjPtr aVisObj = GetVisualObj(anEntry.in());
 306                 if(SMESH_MeshObj* aMeshObj = dynamic_cast<SMESH_MeshObj*>(aVisObj.get())){
 307                   aVisualObj.reset(new SMESH_GroupObj(aGroup,aMeshObj));
 308                   TVisualObjCont::value_type aValue(theEntry,aVisualObj);
 309                   VISUAL_OBJ_CONT.insert(aValue);
 310                 }
 311               }
 312               //Try narrow to SMESH_subMesh interface
 313               SMESH::SMESH_subMesh_var aSubMesh = SMESH::SMESH_subMesh::_narrow(anObj);
 314               if(!aSubMesh->_is_nil()){
 315                 _PTR(SObject) aFatherSObj = aSObj->GetFather();
 316                 if(!aFatherSObj) return aVisualObj;
 317                 aFatherSObj = aFatherSObj->GetFather();
 318                 if(!aFatherSObj) return aVisualObj;
 319                 CORBA::String_var anEntry = aFatherSObj->GetID().c_str();
 320                 TVisualObjPtr aVisObj = GetVisualObj(anEntry.in());
 321                 if(SMESH_MeshObj* aMeshObj = dynamic_cast<SMESH_MeshObj*>(aVisObj.get())){
 322                   aVisualObj.reset(new SMESH_subMeshObj(aSubMesh,aMeshObj));
 323                   TVisualObjCont::value_type aValue(theEntry,aVisualObj);
 324                   VISUAL_OBJ_CONT.insert(aValue);
 325                 }
 326               }
 327             }
 328           }
 329         }
 330       }
 331     }catch(...){
 332       INFOS("GetMeshObj - There is no SMESH_Mesh object for the SALOMEDS::Strudy and Entry!!!");
 333       return TVisualObjPtr();
 334     }
 335     // Update object
 336     bool objModified = false;
 337     if ( aVisualObj ) {
 338       try {
 339         OCC_CATCH_SIGNALS;
 340         if (nulData)
 341           objModified = aVisualObj->NulData();
 342         else
 343           objModified = aVisualObj->Update();
 344       }
 345       catch (...) {
 346         MESSAGE ( "Exception in SMESHGUI_VTKUtils::GetVisualObj()" );
 347         RemoveVisualObjectWithActors( theEntry ); // remove this object
 348         OnVisuException();
 349         aVisualObj.reset();
 350       }
 351     }
 352
 353     if ( objModified ) {
 354       // PAL16631. Measurements showed that to show aVisualObj in SHADING(default) mode,
 355       // ~5 times more memory is used than it occupies.
 356       // Warn the user if there is less free memory than 30 sizes of a grid
 357       // TODO: estimate memory usage in other modes and take current mode into account
 358       int freeMB = SMDS_Mesh::CheckMemory(true);
 359       int usedMB = aVisualObj->GetUnstructuredGrid()->GetActualMemorySize() / 1024;
 360       //MESSAGE("SMESHGUI_VTKUtils::GetVisualObj(), freeMB=" << freeMB << ", usedMB=" <<usedMB);
 361       if ( freeMB > 0 && usedMB * 5 > freeMB ) {
 362         bool continu = false;
 363         if ( usedMB * 3 > freeMB )
 364           // don't even try to show
 365           SUIT_MessageBox::warning(SMESHGUI::desktop(), QObject::tr("SMESH_WRN_WARNING"),
 366                                    QObject::tr("SMESH_NO_MESH_VISUALIZATION"));
 367         else
 368           // there is a chance to succeed
 369           continu = SUIT_MessageBox::warning
 370             (SMESHGUI::desktop(),
 371              QObject::tr("SMESH_WRN_WARNING"),
 372              QObject::tr("SMESH_CONTINUE_MESH_VISUALIZATION"),
 373              SUIT_MessageBox::Yes | SUIT_MessageBox::No,
 374              SUIT_MessageBox::Yes ) == SUIT_MessageBox::Yes;
 375         if ( !continu ) {
 376           // remove the corresponding actors from all views
 377           RemoveVisualObjectWithActors( theEntry );
 378           aVisualObj.reset();
 379         }
 380       }
 381     }
 382
 383     return aVisualObj;
 384   }
 385
 386
 387   /*! Return active view window, if it instantiates SVTK_ViewWindow class,
 388    *  otherwise find or create corresponding view window, make it active and return it.
 389    *  \note Active VVTK_ViewWindow can be returned, because it inherits SVTK_ViewWindow.
 390    */
 391   SVTK_ViewWindow* GetViewWindow (const SalomeApp_Module* theModule,
 392                                   bool createIfNotFound)
 393   {
 394     SalomeApp_Application* anApp;
 395     if (theModule)
 396       anApp = theModule->getApp();
 397     else
 398       anApp = dynamic_cast<SalomeApp_Application*>
 399         (SUIT_Session::session()->activeApplication());
 400
 401     if (anApp) {
 402       if (SVTK_ViewWindow* aView = dynamic_cast<SVTK_ViewWindow*>(anApp->desktop()->activeWindow()))
 403         return aView;
 404
 405       SUIT_ViewManager* aViewManager =
 406         anApp->getViewManager(SVTK_Viewer::Type(), createIfNotFound);
 407       if (aViewManager) {
 408         if (SUIT_ViewWindow* aViewWindow = aViewManager->getActiveView()) {
 409           if (SVTK_ViewWindow* aView = dynamic_cast<SVTK_ViewWindow*>(aViewWindow)) {
 410             aViewWindow->raise();
 411             aViewWindow->setFocus();
 412             return aView;
 413           }
 414         }
 415       }
 416     }
 417     return NULL;
 418   }
 419
 420   SVTK_ViewWindow* FindVtkViewWindow (SUIT_ViewManager* theMgr,
 421                                       SUIT_ViewWindow * theWindow)
 422   {
 423     if( !theMgr )
 424       return NULL;
 425
 426     QVector<SUIT_ViewWindow*> views = theMgr->getViews();
 427     if( views.contains( theWindow ) )
 428       return GetVtkViewWindow( theWindow );
 429     else
 430       return NULL;
 431   }
 432
 433   SVTK_ViewWindow* GetVtkViewWindow(SUIT_ViewWindow* theWindow){
 434     return dynamic_cast<SVTK_ViewWindow*>(theWindow);
 435   }
 436
 437 /*  SUIT_ViewWindow* GetActiveWindow()
 438   {
 439     SalomeApp_Application* app = dynamic_cast<SalomeApp_Application*>( SUIT_Session::session()->activeApplication() );
 440     if( !app )
 441       return NULL;
 442     SUIT_ViewManager* mgr = app->activeViewManager();
 443     if( mgr )
 444       return mgr->getActiveView();
 445     else
 446       return NULL;
 447   }*/
 448
 449   SVTK_ViewWindow* GetCurrentVtkView(){
 450     return GetVtkViewWindow( GetActiveWindow() );
 451   }
 452
 453
 454   void RepaintCurrentView()
 455   {
 456     if (SVTK_ViewWindow* wnd = GetCurrentVtkView())
 457     {
 458       try {
 459         OCC_CATCH_SIGNALS;
 460         wnd->getRenderer()->Render();
 461         wnd->Repaint(false);
 462       }
 463       catch (...) {
 464         MESSAGE ( "Exception in SMESHGUI_VTKUtils::RepaintCurrentView()" );
 465         OnVisuException();
 466       }
 467     }
 468   }
 469
 470   void RepaintViewWindow(SVTK_ViewWindow* theWindow)
 471   {
 472     try {
 473       OCC_CATCH_SIGNALS;
 474       theWindow->getRenderer()->Render();
 475       theWindow->Repaint();
 476     }
 477     catch (...) {
 478       MESSAGE ( "Exception in SMESHGUI_VTKUtils::RepaintViewWindow(SVTK_ViewWindow*)" );
 479       OnVisuException();
 480     }
 481   }
 482
 483   void RenderViewWindow(SVTK_ViewWindow* theWindow)
 484   {
 485     try {
 486       OCC_CATCH_SIGNALS;
 487       theWindow->getRenderer()->Render();
 488       theWindow->Repaint();
 489     }
 490     catch (...) {
 491       MESSAGE ( "Exception in SMESHGUI_VTKUtils::RenderViewWindow(SVTK_ViewWindow*)" );
 492       OnVisuException();
 493     }
 494   }
 495
 496   void FitAll(){
 497     if(SVTK_ViewWindow* wnd = GetCurrentVtkView() ){
 498       try {
 499         OCC_CATCH_SIGNALS;
 500         wnd->onFitAll();
 501         wnd->Repaint();
 502       }
 503       catch (...) {
 504         MESSAGE ( "Exception in SMESHGUI_VTKUtils::FitAll()" );
 505         OnVisuException();
 506       }
 507     }
 508   }
 509
 510
 511   SMESH_Actor* FindActorByEntry(SUIT_ViewWindow *theWindow,
 512                                 const char* theEntry)
 513   {
 514     if(SVTK_ViewWindow* aViewWindow = GetVtkViewWindow(theWindow)){
 515       vtkRenderer *aRenderer = aViewWindow->getRenderer();
 516       VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
 517       vtkActorCollection *aCollection = aCopy.GetActors();
 518       aCollection->InitTraversal();
 519       while(vtkActor *anAct = aCollection->GetNextActor()){
 520         if(SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>(anAct)){
 521           if(anActor->hasIO()){
 522             Handle(SALOME_InteractiveObject) anIO = anActor->getIO();
 523             if(anIO->hasEntry() && strcmp(anIO->getEntry(),theEntry) == 0){
 524               return anActor;
 525             }
 526           }
 527         }
 528       }
 529     }
 530     return NULL;
 531   }
 532
 533
 534   SMESH_Actor* FindActorByEntry(const char* theEntry){
 535     return FindActorByEntry(GetActiveWindow(),theEntry);
 536   }
 537
 538
 539   SMESH_Actor* FindActorByObject(CORBA::Object_ptr theObject){
 540     SalomeApp_Application* app = dynamic_cast<SalomeApp_Application*>( SUIT_Session::session()->activeApplication() );
 541     if( !app )
 542       return NULL;
 543
 544     if(!CORBA::is_nil(theObject)){
 545       _PTR(Study) aStudy = getStudy();
 546       CORBA::String_var anIOR = app->orb()->object_to_string( theObject );
 547       _PTR(SObject) aSObject = aStudy->FindObjectIOR(anIOR.in());
 548       if(aSObject){
 549         CORBA::String_var anEntry = aSObject->GetID().c_str();
 550         return FindActorByEntry(anEntry.in());
 551       }
 552     }
 553     return NULL;
 554   }
 555
 556
 557   SMESH_Actor* CreateActor(const char* theEntry,
 558                            int theIsClear)
 559   {
 560     SMESH_Actor *anActor = NULL;
 561     if(TVisualObjPtr aVisualObj = GetVisualObj(theEntry)){
 562       _PTR(SObject) aSObj = getStudy()->FindObjectID(theEntry);
 563       if(aSObj){
 564         _PTR(GenericAttribute) anAttr;
 565         if(aSObj->FindAttribute(anAttr,"AttributeName")){
 566           _PTR(AttributeName) aName = anAttr;
 567           std::string aNameVal = aName->Value();
 568           anActor = SMESH_Actor::New(aVisualObj,theEntry,aNameVal.c_str(),theIsClear);
 569         }
 570
 571         SMESH::SMESH_GroupBase_var aGroup = SMESH::SMESH_GroupBase::_narrow( SMESH::SObjectToObject( aSObj ));
 572         if(!CORBA::is_nil(aGroup) && anActor)
 573         {
 574           QColor c;
 575           int deltaF, deltaV;
 576           SMESH::GetColor( "SMESH", "fill_color", c, deltaF, "0,170,255|-100"  );
 577           SMESH::GetColor( "SMESH", "volume_color", c, deltaV, "255,0,170|-100"  );
 578           c = SMESH::GetColor( "SMESH", "default_grp_color", c );
 579           SALOMEDS::Color aColor = aGroup->GetColor();
 580           if( !( aColor.R > 0 || aColor.G > 0 || aColor.B > 0 ))
 581           {
 582             aColor.R = c.redF();
 583             aColor.G = c.greenF();
 584             aColor.B = c.blueF();
 585             aGroup->SetColor( aColor );
 586           }
 587           if( aGroup->GetType() == SMESH::NODE )
 588             anActor->SetNodeColor( aColor.R, aColor.G, aColor.B );
 589           else if( aGroup->GetType() == SMESH::EDGE )
 590             anActor->SetEdgeColor( aColor.R, aColor.G, aColor.B );
 591           else if( aGroup->GetType() == SMESH::ELEM0D )
 592             anActor->Set0DColor( aColor.R, aColor.G, aColor.B );
 593           else if( aGroup->GetType() == SMESH::BALL )
 594             anActor->SetBallColor( aColor.R, aColor.G, aColor.B );
 595           else if( aGroup->GetType() == SMESH::VOLUME )
 596             anActor->SetVolumeColor( aColor.R, aColor.G, aColor.B, deltaV );
 597           else
 598             anActor->SetSufaceColor( aColor.R, aColor.G, aColor.B, deltaF );
 599         }
 600       }
 601     }
 602     //MESSAGE("CreateActor " << anActor);
 603     if( anActor )
 604       if( SMESHGUI* aSMESHGUI = SMESHGUI::GetSMESHGUI() )
 605         aSMESHGUI->addActorAsObserver( anActor );
 606     return anActor;
 607   }
 608
 609
 610   void DisplayActor( SUIT_ViewWindow *theWnd, SMESH_Actor* theActor){
 611     if(SVTK_ViewWindow* vtkWnd = GetVtkViewWindow(theWnd)){
 612       try {
 613         OCC_CATCH_SIGNALS;
 614         //MESSAGE("DisplayActor " << theActor);
 615         vtkWnd->AddActor(theActor);
 616         vtkWnd->Repaint();
 617       }
 618       catch (...) {
 619         MESSAGE ( "Exception in SMESHGUI_VTKUtils::DisplayActor()" );
 620         OnVisuException();
 621       }
 622     }
 623   }
 624
 625
 626   void RemoveActor( SUIT_ViewWindow *theWnd, SMESH_Actor* theActor)
 627   {
 628     if ( SVTK_ViewWindow* vtkWnd = GetVtkViewWindow(theWnd)) {
 629       //MESSAGE("RemoveActor " << theActor);
 630       vtkWnd->RemoveActor(theActor);
 631       if(theActor->hasIO()){
 632         Handle(SALOME_InteractiveObject) anIO = theActor->getIO();
 633         if(anIO->hasEntry()){
 634           std::string anEntry = anIO->getEntry();
 635           VISUAL_OBJ_CONT.erase(anEntry);
 636         }
 637       }
 638       theActor->Delete();
 639       vtkWnd->Repaint();
 640     }
 641   }
 642
 643   //================================================================================
 644   /*!
 645    * \brief Return true if there are no SMESH actors in a view
 646    */
 647   //================================================================================
 648
 649   bool noSmeshActors(SUIT_ViewWindow *theWnd)
 650   {
 651     if(SVTK_ViewWindow* aViewWindow = GetVtkViewWindow(theWnd)) {
 652       vtkRenderer *aRenderer = aViewWindow->getRenderer();
 653       VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
 654       vtkActorCollection *aCollection = aCopy.GetActors();
 655       aCollection->InitTraversal();
 656       while(vtkActor *anAct = aCollection->GetNextActor())
 657         if(dynamic_cast<SMESH_Actor*>(anAct))
 658           return false;
 659     }
 660     return true;
 661   }
 662
 663   bool UpdateView(SUIT_ViewWindow *theWnd, EDisplaing theAction, const char* theEntry)
 664   {
 665     //MESSAGE("UpdateView");
 666     bool OK = false;
 667     SVTK_ViewWindow* aViewWnd = GetVtkViewWindow(theWnd);
 668     if (!aViewWnd)
 669       return OK;
 670
 671     SVTK_ViewWindow* vtkWnd = GetVtkViewWindow(theWnd);
 672     if (!vtkWnd)
 673       return OK;
 674
 675     SalomeApp_Study* aStudy = dynamic_cast<SalomeApp_Study*>( vtkWnd->getViewManager()->study() );
 676
 677     if (!aStudy)
 678       return OK;
 679
 680     {
 681       OK = true;
 682       vtkRenderer *aRenderer = aViewWnd->getRenderer();
 683       VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
 684       vtkActorCollection *aCollection = aCopy.GetActors();
 685       aCollection->InitTraversal();
 686
 687       switch (theAction) {
 688       case eDisplayAll: {
 689         while (vtkActor *anAct = aCollection->GetNextActor()) {
 690           if (SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>(anAct)) {
 691             //MESSAGE("--- display " << anActor);
 692             anActor->SetVisibility(true);
 693
 694             if(anActor->hasIO()){
 695               Handle(SALOME_InteractiveObject) anIO = anActor->getIO();
 696               if(anIO->hasEntry()){
 697                 aStudy->setVisibilityState(anIO->getEntry(), Qtx::ShownState);
 698               }
 699             }
 700           }
 701         }
 702         break;
 703       }
 704       case eDisplayOnly:
 705       case eEraseAll: {
 706         //MESSAGE("---case eDisplayOnly");
 707         while (vtkActor *anAct = aCollection->GetNextActor()) {
 708           if (SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>(anAct)) {
 709             //MESSAGE("--- erase " << anActor);
 710             anActor->SetVisibility(false);
 711           }
 712         }
 713         aStudy->setVisibilityStateForAll(Qtx::HiddenState);
 714       }
 715       default: {
 716         if (SMESH_Actor *anActor = FindActorByEntry(theWnd,theEntry)) {
 717           switch (theAction) {
 718             case eDisplay:
 719             case eDisplayOnly:
 720               //MESSAGE("--- display " << anActor);
 721               anActor->Update();
 722               anActor->SetVisibility(true);
 723               if (theAction == eDisplayOnly) aRenderer->ResetCameraClippingRange();
 724               aStudy->setVisibilityState(theEntry, Qtx::ShownState);
 725               break;
 726             case eErase:
 727               //MESSAGE("--- erase " << anActor);
 728               anActor->SetVisibility(false);
 729               aStudy->setVisibilityState(theEntry, Qtx::HiddenState);
 730               break;
 731             default:;
 732           }
 733         } else {
 734           switch (theAction) {
 735           case eDisplay:
 736           case eDisplayOnly:
 737             {
 738               //MESSAGE("---");
 739               SalomeApp_Study* aStudy = dynamic_cast<SalomeApp_Study*>(theWnd->getViewManager()->study());
 740               TVisualObjPtr aVisualObj;
 741               if ( (aVisualObj = GetVisualObj(theEntry)) && aVisualObj->IsValid())
 742               {
 743                 if ((anActor = CreateActor(theEntry,true))) {
 744                   bool needFitAll = noSmeshActors(theWnd); // fit for the first object only
 745                   DisplayActor(theWnd,anActor);
 746                   anActor->SetVisibility(true);
 747                   aStudy->setVisibilityState(theEntry, Qtx::ShownState);
 748                   // FitAll(); - PAL16770(Display of a group performs an automatic fit all)
 749                   if (needFitAll) FitAll();
 750                 } else {
 751                   OK = false;
 752                 }
 753               }
 754               break;
 755             }
 756           default:;
 757           }
 758         }
 759       }
 760       }
 761     }
 762     return OK;
 763   }
 764
 765
 766   bool UpdateView(EDisplaing theAction, const char* theEntry) {
 767     //MESSAGE("UpdateView");
 768     SalomeApp_Study* aStudy = dynamic_cast< SalomeApp_Study* >( GetActiveStudy() );
 769     SalomeApp_Application* app = dynamic_cast< SalomeApp_Application* >( aStudy->application() );
 770     if ( SUIT_ViewManager* vm = app->activeViewManager() )
 771     {
 772       SUIT_ViewWindow *aWnd = vm->getActiveView();
 773       return UpdateView(aWnd,theAction,theEntry);
 774     }
 775     return false;
 776   }
 777
 778   void UpdateView( bool withChildrenOfSelected )
 779   {
 780     if ( SVTK_ViewWindow* aWnd = SMESH::GetCurrentVtkView()) {
 781       LightApp_SelectionMgr* mgr = SMESHGUI::selectionMgr();
 782       SALOME_ListIO selected; mgr->selectedObjects( selected );
 783
 784       if ( selected.Extent() == 0 ) {
 785         vtkRenderer* aRenderer = aWnd->getRenderer();
 786         VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
 787         vtkActorCollection *aCollection = aCopy.GetActors();
 788         aCollection->InitTraversal();
 789         while(vtkActor *anAct = aCollection->GetNextActor()){
 790           if(SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>(anAct)){
 791             if(anActor->hasIO())
 792               if (!Update(anActor->getIO(),anActor->GetVisibility()))
 793                 break; // avoid multiple warnings if visu failed
 794           }
 795         }
 796       }
 797       else
 798       {
 799         SALOME_ListIteratorOfListIO anIter( selected );
 800         for( ; anIter.More(); anIter.Next())
 801         {
 802           Handle(SALOME_InteractiveObject) anIO = anIter.Value();
 803           if ( !Update( anIO, true ))
 804             break; // avoid multiple warnings if visu failed
 805
 806           if ( withChildrenOfSelected ) // update all visible children
 807           {
 808             QString aFatherID = anIO->getEntry();
 809             vtkRenderer* aRenderer = aWnd->getRenderer();
 810             VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
 811             vtkActorCollection *aCollection = aCopy.GetActors();
 812             aCollection->InitTraversal();
 813             while ( vtkActor *anAct = aCollection->GetNextActor() ) {
 814               if ( SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>( anAct )) {
 815                 if ( anActor->hasIO() && anActor->GetVisibility() )
 816                 {
 817                   QString aChildID = anActor->getIO()->getEntry();
 818                   if ( aChildID.size() > aFatherID.size() &&
 819                        aChildID.startsWith( aFatherID ))
 820                     if ( ! Update( anActor->getIO(), true ))
 821                       break;
 822                 }
 823               }
 824             }
 825           }
 826         }
 827       }
 828       RepaintCurrentView();
 829     }
 830   }
 831
 832
 833   bool Update(const Handle(SALOME_InteractiveObject)& theIO, bool theDisplay)
 834   {
 835     //MESSAGE("Update");
 836     if ( TVisualObjPtr aVisualObj = SMESH::GetVisualObj(theIO->getEntry())) {
 837       if ( theDisplay )
 838         UpdateView(SMESH::eDisplay,theIO->getEntry());
 839       return true;
 840     }
 841     return false;
 842   }
 843
 844   bool UpdateNulData(const Handle(SALOME_InteractiveObject)& theIO, bool theDisplay)
 845   {
 846     //MESSAGE("UpdateNulData");
 847     if ( TVisualObjPtr aVisualObj = SMESH::GetVisualObj(theIO->getEntry(), true)) {
 848       if ( theDisplay )
 849         UpdateView(SMESH::eDisplay,theIO->getEntry());
 850       return true;
 851     }
 852     return false;
 853   }
 854
 855   void UpdateSelectionProp( SMESHGUI* theModule )
 856   {
 857     if( !theModule )
 858       return;
 859
 860     SalomeApp_Application* app = dynamic_cast< SalomeApp_Application* >( theModule->application() );
 861     if( !app )
 862     {
 863       MESSAGE( "UpdateSelectionProp: Application is null" );
 864       return;
 865     }
 866
 867     SUIT_ViewManager* vm = app->activeViewManager();
 868     if( !vm )
 869     {
 870       MESSAGE( "UpdateSelectionProp: View manager is null" );
 871       return;
 872     }
 873
 874     QVector<SUIT_ViewWindow*> views = vm->getViews();
 875
 876     SUIT_ResourceMgr* mgr = SMESH::GetResourceMgr( theModule );
 877     if( !mgr )
 878     {
 879       MESSAGE( "UpdateSelectionProp: Resource manager is null" );
 880       return;
 881     }
 882
 883     SMESH_ActorProps::props()->reset();
 884
 885     QColor
 886       aHiColor = mgr->colorValue( "SMESH", "selection_object_color", Qt::white ),
 887       aSelColor = mgr->colorValue( "SMESH", "selection_element_color", Qt::yellow ),
 888       aPreColor = mgr->colorValue( "SMESH", "highlight_color", Qt::cyan );
 889
 890     int aElem0DSize = mgr->integerValue("SMESH", "elem0d_size", 5);
 891     // int aBallSize   = mgr->integerValue("SMESH", "ball_elem_size", 5);
 892     int aLineWidth  = mgr->integerValue("SMESH", "element_width", 1);
 893     int maxSize = aElem0DSize;
 894     if (aElem0DSize > maxSize) maxSize = aElem0DSize;
 895     if (aLineWidth > maxSize) maxSize = aLineWidth;
 896     //  if (aBallSize > maxSize) maxSize = aBallSize;
 897
 898     double
 899       SP1 = mgr->doubleValue( "SMESH", "selection_precision_node", 0.025 ),
 900       SP2 = mgr->doubleValue( "SMESH", "selection_precision_element", 0.001 ),
 901       SP3 = mgr->doubleValue( "SMESH", "selection_precision_object", 0.025 );
 902
 903     for ( int i=0, n=views.count(); i<n; i++ )
 904     {
 905       // update VTK viewer properties
 906       if ( SVTK_ViewWindow* aVtkView = GetVtkViewWindow( views[i] ))
 907       {
 908         // mesh element selection
 909         aVtkView->SetSelectionProp(aSelColor.red()/255.,
 910                                    aSelColor.green()/255.,
 911                                    aSelColor.blue()/255.);
 912         // tolerances
 913         aVtkView->SetSelectionTolerance(SP1, SP2, SP3);
 914
 915         // pre-selection
 916         aVtkView->SetPreselectionProp(aPreColor.red()/255.,
 917                                       aPreColor.green()/255.,
 918                                       aPreColor.blue()/255.);
 919         // update actors
 920         vtkRenderer* aRenderer = aVtkView->getRenderer();
 921         VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
 922         vtkActorCollection *aCollection = aCopy.GetActors();
 923         aCollection->InitTraversal();
 924         while ( vtkActor *anAct = aCollection->GetNextActor() ) {
 925           if ( SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>(anAct) ) {
 926             anActor->UpdateSelectionProps();
 927           }
 928         }
 929       }
 930     }
 931   }
 932
 933
 934   void UpdateFontProp( SMESHGUI* theModule )
 935   {
 936     if ( !theModule ) return;
 937
 938     SalomeApp_Application* app = dynamic_cast< SalomeApp_Application* >( theModule->application() );
 939     if ( !app ) return;
 940
 941     SUIT_ResourceMgr* mgr = SMESH::GetResourceMgr( theModule );
 942     if ( !mgr ) return;
 943     //
 944     double anRGBNd[3] = {1,1,1};
 945     SMESH::GetColor( "SMESH", "numbering_node_color", anRGBNd[0], anRGBNd[1], anRGBNd[2], QColor( 255, 255, 255 ) );
 946     int aSizeNd = 10;
 947     SMESH::LabelFont aFamilyNd = SMESH::FntTimes;
 948     bool aBoldNd    = true;
 949     bool anItalicNd = false;
 950     bool aShadowNd  = false;
 951
 952     if ( mgr->hasValue( "SMESH", "numbering_node_font" ) ) {
 953       QFont f = mgr->fontValue( "SMESH", "numbering_node_font" );
 954       if ( f.family()      == "Arial" )   aFamilyNd = SMESH::FntArial;
 955       else if ( f.family() == "Courier" ) aFamilyNd = SMESH::FntCourier;
 956       else if ( f.family() == "Times" )   aFamilyNd = SMESH::FntTimes;
 957       aBoldNd    = f.bold();
 958       anItalicNd = f.italic();
 959       aShadowNd  = f.overline();
 960       aSizeNd    = f.pointSize();
 961     }
 962     //
 963     double anRGBEl[3] = {0,1,0};
 964     SMESH::GetColor( "SMESH", "numbering_elem_color", anRGBEl[0], anRGBEl[1], anRGBEl[2], QColor( 0, 255, 0 ) );
 965     int aSizeEl = 12;
 966     SMESH::LabelFont aFamilyEl = SMESH::FntTimes;
 967     bool aBoldEl    = true;
 968     bool anItalicEl = false;
 969     bool aShadowEl  = false;
 970
 971     if ( mgr->hasValue( "SMESH", "numbering_elem_font" ) ) {
 972       QFont f = mgr->fontValue( "SMESH", "numbering_elem_font" );
 973
 974       if ( f.family()      == "Arial" )   aFamilyEl = SMESH::FntArial;
 975       else if ( f.family() == "Courier" ) aFamilyEl = SMESH::FntCourier;
 976       else if ( f.family() == "Times" )   aFamilyEl = SMESH::FntTimes;
 977       aBoldEl    = f.bold();
 978       anItalicEl = f.italic();
 979       aShadowEl  = f.overline();
 980       aSizeEl    = f.pointSize();
 981     }
 982     //
 983     ViewManagerList vmList;
 984     app->viewManagers( SVTK_Viewer::Type(), vmList );
 985     foreach ( SUIT_ViewManager* vm, vmList ) {
 986       QVector<SUIT_ViewWindow*> views = vm->getViews();
 987       foreach ( SUIT_ViewWindow* vw, views ) {
 988         // update VTK viewer properties
 989         if ( SVTK_ViewWindow* aVtkView = GetVtkViewWindow( vw ) ) {
 990           // update actors
 991           vtkRenderer* aRenderer = aVtkView->getRenderer();
 992           VTK::ActorCollectionCopy aCopy( aRenderer->GetActors() );
 993           vtkActorCollection* aCollection = aCopy.GetActors();
 994           aCollection->InitTraversal();
 995           while ( vtkActor* anAct = aCollection->GetNextActor() ) {
 996             if ( SMESH_NodeLabelActor* anActor = dynamic_cast< SMESH_NodeLabelActor* >( anAct ) ) {
 997               anActor->SetFontProperties( aFamilyNd, aSizeNd, aBoldNd, anItalicNd, aShadowNd, anRGBNd[0], anRGBNd[1], anRGBNd[2] );
 998             }
 999             else if ( SMESH_CellLabelActor* anActor = dynamic_cast< SMESH_CellLabelActor* >( anAct ) ) {
1000               anActor->SetFontProperties( aFamilyEl, aSizeEl, aBoldEl, anItalicEl, aShadowEl, anRGBEl[0], anRGBEl[1], anRGBEl[2] );
1001             }
1002           }
1003           aVtkView->Repaint( false );
1004         }
1005       }
1006     }
1007   }
1008
1009   //----------------------------------------------------------------------------
1010   SVTK_Selector*
1011   GetSelector(SUIT_ViewWindow *theWindow)
1012   {
1013     if(SVTK_ViewWindow* aWnd = GetVtkViewWindow(theWindow))
1014       return aWnd->GetSelector();
1015
1016     return NULL;
1017   }
1018
1019   void SetFilter(const Handle(VTKViewer_Filter)& theFilter,
1020                  SVTK_Selector* theSelector)
1021   {
1022     if (theSelector)
1023       theSelector->SetFilter(theFilter);
1024   }
1025
1026   Handle(VTKViewer_Filter) GetFilter(int theId, SVTK_Selector* theSelector)
1027   {
1028     return theSelector->GetFilter(theId);
1029   }
1030
1031   bool IsFilterPresent(int theId, SVTK_Selector* theSelector)
1032   {
1033     return theSelector->IsFilterPresent(theId);
1034   }
1035
1036   void RemoveFilter(int theId, SVTK_Selector* theSelector)
1037   {
1038     theSelector->RemoveFilter(theId);
1039   }
1040
1041   void RemoveFilters(SVTK_Selector* theSelector)
1042   {
1043     for ( int id = SMESH::NodeFilter; theSelector && id < SMESH::LastFilter; id++ )
1044       theSelector->RemoveFilter( id );
1045   }
1046
1047   bool IsValid(SALOME_Actor* theActor, int theCellId,
1048                SVTK_Selector* theSelector)
1049   {
1050     return theSelector->IsValid(theActor,theCellId);
1051   }
1052
1053
1054   //----------------------------------------------------------------------------
1055   void SetPointRepresentation(bool theIsVisible)
1056   {
1057     if ( SVTK_ViewWindow* aViewWindow = GetCurrentVtkView() ) {
1058       vtkRenderer *aRenderer = aViewWindow->getRenderer();
1059       VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
1060       vtkActorCollection *aCollection = aCopy.GetActors();
1061       aCollection->InitTraversal();
1062       while(vtkActor *anAct = aCollection->GetNextActor()){
1063         if(SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>(anAct)){
1064           if(anActor->GetVisibility()){
1065             anActor->SetPointRepresentation(theIsVisible);
1066           }
1067         }
1068       }
1069       RepaintCurrentView();
1070     }
1071   }
1072
1073
1074   void SetPickable(SMESH_Actor* theActor)
1075   {
1076     if ( SVTK_ViewWindow* aWnd = GetCurrentVtkView() ) {
1077       int anIsAllPickable = (theActor == NULL);
1078       vtkRenderer *aRenderer = aWnd->getRenderer();
1079       VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
1080       vtkActorCollection *aCollection = aCopy.GetActors();
1081       aCollection->InitTraversal();
1082       while(vtkActor *anAct = aCollection->GetNextActor()){
1083         if(SALOME_Actor *anActor = dynamic_cast<SALOME_Actor*>(anAct)){
1084           if(anActor->GetVisibility()){
1085             anActor->SetPickable(anIsAllPickable);
1086           }
1087         }
1088       }
1089       if(theActor)
1090         theActor->SetPickable(!anIsAllPickable);
1091       RepaintCurrentView();
1092     }
1093   }
1094
1095
1096   //----------------------------------------------------------------------------
1097   int GetNameOfSelectedNodes(SVTK_Selector*                          theSelector,
1098                              const Handle(SALOME_InteractiveObject)& theIO,
1099                              QString&                                theName)
1100   {
1101     theName = "";
1102     TColStd_IndexedMapOfInteger aMapIndex;
1103     theSelector->GetIndex(theIO,aMapIndex);
1104
1105     for(int i = 1; i <= aMapIndex.Extent(); i++)
1106       theName += QString(" %1").arg(aMapIndex(i));
1107
1108     return aMapIndex.Extent();
1109   }
1110
1111   int GetNameOfSelectedElements(SVTK_Selector* theSelector,
1112                                 const Handle(SALOME_InteractiveObject)& theIO,
1113                                 QString& theName)
1114   {
1115     theName = "";
1116     TColStd_IndexedMapOfInteger aMapIndex;
1117     theSelector->GetIndex(theIO,aMapIndex);
1118
1119     typedef std::set<int> TIdContainer;
1120     TIdContainer anIdContainer;
1121     for( int i = 1; i <= aMapIndex.Extent(); i++)
1122       anIdContainer.insert(aMapIndex(i));
1123
1124     TIdContainer::const_iterator anIter = anIdContainer.begin();
1125     for( ; anIter != anIdContainer.end(); anIter++)
1126       theName += QString(" %1").arg(*anIter);
1127
1128     return aMapIndex.Extent();
1129   }
1130
1131
1132   int GetEdgeNodes(SVTK_Selector* theSelector,
1133                    const TVisualObjPtr& theVisualObject,
1134                    int& theId1,
1135                    int& theId2)
1136   {
1137     const SALOME_ListIO& selected = theSelector->StoredIObjects();
1138
1139     if ( selected.Extent() != 1 )
1140       return -1;
1141
1142     Handle(SALOME_InteractiveObject) anIO = selected.First();
1143     if ( anIO.IsNull() || !anIO->hasEntry() )
1144       return -1;
1145
1146     TColStd_IndexedMapOfInteger aMapIndex;
1147     theSelector->GetIndex( anIO, aMapIndex );
1148     if ( aMapIndex.Extent() != 2 )
1149       return -1;
1150
1151     int anObjId = -1, anEdgeNum = -1;
1152     for ( int i = 1; i <= aMapIndex.Extent(); i++ ) {
1153       int aVal = aMapIndex( i );
1154       if ( aVal > 0 )
1155         anObjId = aVal;
1156       else
1157         anEdgeNum = abs( aVal ) - 1;
1158     }
1159
1160     if ( anObjId == -1 || anEdgeNum == -1 )
1161       return -1;
1162
1163     return theVisualObject->GetEdgeNodes( anObjId, anEdgeNum, theId1, theId2 ) ? 1 : -1;
1164   }
1165
1166   //----------------------------------------------------------------------------
1167   int GetNameOfSelectedNodes(LightApp_SelectionMgr *theMgr,
1168                              const Handle(SALOME_InteractiveObject)& theIO,
1169                              QString& theName)
1170   {
1171     theName = "";
1172     if(theIO->hasEntry()){
1173       if(FindActorByEntry(theIO->getEntry())){
1174         TColStd_IndexedMapOfInteger aMapIndex;
1175         theMgr->GetIndexes(theIO,aMapIndex);
1176         for(int i = 1; i <= aMapIndex.Extent(); i++){
1177           theName += QString(" %1").arg(aMapIndex(i));
1178         }
1179         return aMapIndex.Extent();
1180       }
1181     }
1182     return -1;
1183   }
1184
1185   int GetNameOfSelectedNodes(LightApp_SelectionMgr *theMgr, QString& theName)
1186   {
1187     theName = "";
1188     SALOME_ListIO selected; theMgr->selectedObjects( selected );
1189     if(selected.Extent() == 1){
1190       Handle(SALOME_InteractiveObject) anIO = selected.First();
1191       return GetNameOfSelectedNodes(theMgr,anIO,theName);
1192     }
1193     return -1;
1194   }
1195
1196
1197   int GetNameOfSelectedElements(LightApp_SelectionMgr *                 theMgr,
1198                                 const Handle(SALOME_InteractiveObject)& theIO,
1199                                 QString&                                theName)
1200   {
1201     theName = "";
1202     if(theIO->hasEntry()){
1203       if(FindActorByEntry(theIO->getEntry())){
1204         TColStd_IndexedMapOfInteger aMapIndex;
1205         theMgr->GetIndexes(theIO,aMapIndex);
1206         typedef std::set<int> TIdContainer;
1207         TIdContainer anIdContainer;
1208         for( int i = 1; i <= aMapIndex.Extent(); i++)
1209           anIdContainer.insert(aMapIndex(i));
1210         TIdContainer::const_iterator anIter = anIdContainer.begin();
1211         for( ; anIter != anIdContainer.end(); anIter++){
1212           theName += QString(" %1").arg(*anIter);
1213         }
1214         return aMapIndex.Extent();
1215       }
1216     }
1217     return -1;
1218   }
1219
1220
1221   int GetNameOfSelectedElements(LightApp_SelectionMgr *theMgr, QString& theName)
1222   {
1223     theName = "";
1224     SALOME_ListIO selected; theMgr->selectedObjects( selected );
1225
1226     if( selected.Extent() == 1){
1227       Handle(SALOME_InteractiveObject) anIO = selected.First();
1228       return GetNameOfSelectedElements(theMgr,anIO,theName);
1229     }
1230     return -1;
1231   }
1232
1233   int GetSelected(LightApp_SelectionMgr*       theMgr,
1234                   TColStd_IndexedMapOfInteger& theMap,
1235                   const bool                   theIsElement)
1236   {
1237     theMap.Clear();
1238     SALOME_ListIO selected; theMgr->selectedObjects( selected );
1239
1240     if ( selected.Extent() == 1 )
1241     {
1242       Handle(SALOME_InteractiveObject) anIO = selected.First();
1243       if ( anIO->hasEntry() ) {
1244         theMgr->GetIndexes( anIO, theMap );
1245       }
1246     }
1247     return theMap.Extent();
1248   }
1249
1250
1251   int GetEdgeNodes( LightApp_SelectionMgr* theMgr, int& theId1, int& theId2 )
1252   {
1253     SALOME_ListIO selected; theMgr->selectedObjects( selected );
1254
1255     if ( selected.Extent() != 1 )
1256       return -1;
1257
1258     Handle(SALOME_InteractiveObject) anIO = selected.First();
1259     if ( anIO.IsNull() || !anIO->hasEntry() )
1260       return -1;
1261
1262     SMESH_Actor *anActor = SMESH::FindActorByEntry( anIO->getEntry() );
1263     if ( anActor == 0 )
1264       return -1;
1265
1266     TColStd_IndexedMapOfInteger aMapIndex;
1267     theMgr->GetIndexes( anIO, aMapIndex );
1268     if ( aMapIndex.Extent() != 2 )
1269       return -1;
1270
1271     int anObjId = -1, anEdgeNum = -1;
1272     for ( int i = 1; i <= aMapIndex.Extent(); i++ ) {
1273       int aVal = aMapIndex( i );
1274       if ( aVal > 0 )
1275         anObjId = aVal;
1276       else
1277         anEdgeNum = abs( aVal );
1278     }
1279
1280     if ( anObjId == -1 || anEdgeNum == -1 )
1281       return -1;
1282
1283     return anActor->GetObject()->GetEdgeNodes( anObjId, anEdgeNum, theId1, theId2 ) ? 1 : -1;
1284   }
1285
1286   void SetControlsPrecision( const long theVal )
1287   {
1288     if( SVTK_ViewWindow* aWnd = SMESH::GetCurrentVtkView() )
1289     {
1290       vtkRenderer *aRenderer = aWnd->getRenderer();
1291       VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
1292       vtkActorCollection *aCollection = aCopy.GetActors();
1293       aCollection->InitTraversal();
1294
1295       while ( vtkActor *anAct = aCollection->GetNextActor())
1296       {
1297         if ( SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>( anAct ) )
1298         {
1299           anActor->SetControlsPrecision( theVal );
1300           anActor->SetControlMode( anActor->GetControlMode() );
1301         }
1302       }
1303
1304     }
1305   }
1306
1307   //----------------------------------------------------------------------------
1308   // internal function
1309   void ComputeBoundsParam( double theBounds[6],
1310                            double theDirection[3],
1311                            double theMinPnt[3],
1312                            double& theMaxBoundPrj,
1313                            double& theMinBoundPrj )
1314   {
1315     //Enlarge bounds in order to avoid conflicts of precision
1316     for(int i = 0; i < 6; i += 2){
1317       static double EPS = 1.0E-3;
1318       double aDelta = (theBounds[i+1] - theBounds[i])*EPS;
1319       theBounds[i] -= aDelta;
1320       theBounds[i+1] += aDelta;
1321     }
1322
1323     double aBoundPoints[8][3] = { {theBounds[0],theBounds[2],theBounds[4]},
1324                                   {theBounds[1],theBounds[2],theBounds[4]},
1325                                   {theBounds[0],theBounds[3],theBounds[4]},
1326                                   {theBounds[1],theBounds[3],theBounds[4]},
1327                                   {theBounds[0],theBounds[2],theBounds[5]},
1328                                   {theBounds[1],theBounds[2],theBounds[5]},
1329                                   {theBounds[0],theBounds[3],theBounds[5]},
1330                                   {theBounds[1],theBounds[3],theBounds[5]}};
1331
1332     int aMaxId = 0;
1333     theMaxBoundPrj = vtkMath::Dot(theDirection,aBoundPoints[aMaxId]);
1334     theMinBoundPrj = theMaxBoundPrj;
1335     for(int i = 1; i < 8; i++){
1336       double aTmp = vtkMath::Dot(theDirection,aBoundPoints[i]);
1337       if(theMaxBoundPrj < aTmp){
1338         theMaxBoundPrj = aTmp;
1339         aMaxId = i;
1340       }
1341       if(theMinBoundPrj > aTmp){
1342         theMinBoundPrj = aTmp;
1343       }
1344     }
1345     double *aMinPnt = aBoundPoints[aMaxId];
1346     theMinPnt[0] = aMinPnt[0];
1347     theMinPnt[1] = aMinPnt[1];
1348     theMinPnt[2] = aMinPnt[2];
1349   }
1350
1351   // internal function
1352   void DistanceToPosition( double theBounds[6],
1353                            double theDirection[3],
1354                            double theDist,
1355                            double thePos[3] )
1356   {
1357     double aMaxBoundPrj, aMinBoundPrj, aMinPnt[3];
1358     ComputeBoundsParam(theBounds,theDirection,aMinPnt,aMaxBoundPrj,aMinBoundPrj);
1359     double aLength = (aMaxBoundPrj-aMinBoundPrj)*theDist;
1360     thePos[0] = aMinPnt[0]-theDirection[0]*aLength;
1361     thePos[1] = aMinPnt[1]-theDirection[1]*aLength;
1362     thePos[2] = aMinPnt[2]-theDirection[2]*aLength;
1363   }
1364
1365   // internal function (currently unused, left just in case)
1366   void PositionToDistance( double theBounds[6],
1367                            double theDirection[3],
1368                            double thePos[3],
1369                            double& theDist )
1370   {
1371     double aMaxBoundPrj, aMinBoundPrj, aMinPnt[3];
1372     ComputeBoundsParam(theBounds,theDirection,aMinPnt,aMaxBoundPrj,aMinBoundPrj);
1373     double aPrj = vtkMath::Dot(theDirection,thePos);
1374     theDist = (aPrj-aMinBoundPrj)/(aMaxBoundPrj-aMinBoundPrj);
1375   }
1376
1377   bool ComputeClippingPlaneParameters( std::list<vtkActor*> theActorList,
1378                                        double theNormal[3],
1379                                        double theDist,
1380                                        double theBounds[6],
1381                                        double theOrigin[3] )
1382   {
1383     bool anIsOk = false;
1384     anIsOk = ComputeBounds( theActorList, theBounds );
1385
1386
1387     if( !anIsOk )
1388       return false;
1389
1390     DistanceToPosition( theBounds, theNormal, theDist, theOrigin );
1391     return true;
1392   }
1393
1394   bool ComputeBounds( std::list<vtkActor*> theActorList,
1395                       double theBounds[6])
1396   {
1397     bool anIsOk = false;
1398     theBounds[0] = theBounds[2] = theBounds[4] = VTK_DOUBLE_MAX;
1399     theBounds[1] = theBounds[3] = theBounds[5] = -VTK_DOUBLE_MAX;
1400     std::list<vtkActor*>::iterator anIter = theActorList.begin();
1401     for( ; anIter != theActorList.end(); anIter++ ) {
1402       if( vtkActor* aVTKActor = *anIter ) {
1403         if( SMESH_Actor* anActor = SMESH_Actor::SafeDownCast( aVTKActor ) ) {
1404           double aBounds[6];
1405           anActor->GetUnstructuredGrid()->GetBounds( aBounds );
1406           theBounds[0] = std::min( theBounds[0], aBounds[0] );
1407           theBounds[1] = std::max( theBounds[1], aBounds[1] );
1408           theBounds[2] = std::min( theBounds[2], aBounds[2] );
1409           theBounds[3] = std::max( theBounds[3], aBounds[3] );
1410           theBounds[4] = std::min( theBounds[4], aBounds[4] );
1411           theBounds[5] = std::max( theBounds[5], aBounds[5] );
1412           anIsOk = true;
1413         }
1414       }
1415     }
1416     return anIsOk;
1417   }
1418
1419 #ifndef DISABLE_PLOT2DVIEWER
1420   //================================================================================
1421   /*!
1422    * \brief Find all SMESH_Actor's in the View Window.
1423    * If actor contains Plot2d_Histogram object remove it from each Plot2d Viewer.
1424    */
1425   //================================================================================
1426
1427   void ClearPlot2Viewers( SUIT_ViewWindow* theWindow )
1428   {
1429     if ( SVTK_ViewWindow* aViewWindow = GetVtkViewWindow(theWindow) ) {
1430       vtkRenderer *aRenderer = aViewWindow->getRenderer();
1431       VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
1432       vtkActorCollection *aCollection = aCopy.GetActors();
1433       aCollection->InitTraversal();
1434       while(vtkActor *anAct = aCollection->GetNextActor()){
1435         if(SMESH_Actor *anActor = dynamic_cast<SMESH_Actor*>(anAct)){
1436           if(anActor->hasIO() && anActor->GetPlot2Histogram() ){
1437             ProcessIn2DViewers(anActor,RemoveFrom2dViewer);
1438           }
1439         }
1440       }
1441     }
1442   }
1443
1444 #endif
1445
1446 } // end of namespace SMESH