src/SVTK/SVTK_View.cxx

   1 // Copyright (C) 2007-2024  CEA, EDF, 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 //  SALOME VTKViewer : build VTK viewer into Salome desktop
  24 //  File   :
  25 //  Author :
  26
  27 #include "SALOME_Actor.h"
  28
  29 #include "SVTK_View.h"
  30 #include "SVTK_Renderer.h"
  31 #include "SVTK_ViewWindow.h"
  32 #include "SVTK_RenderWindowInteractor.h"
  33 #include "SALOME_ListIO.hxx"
  34
  35 #include "VTKViewer_Algorithm.h"
  36 #include "SVTK_Functor.h"
  37
  38 #include <vtkActorCollection.h>
  39 #include <vtkRenderer.h>
  40 #include <vtkProperty.h>
  41
  42 /*!
  43   Constructor
  44 */
  45 SVTK_SignalHandler
  46 ::SVTK_SignalHandler(SVTK_ViewWindow* theMainWindow):
  47   QObject(theMainWindow),
  48   myMainWindow(theMainWindow)
  49 {
  50   SVTK_RenderWindowInteractor* anInteractor = theMainWindow->GetInteractor();
  51
  52   connect(anInteractor,SIGNAL(KeyPressed(QKeyEvent*)),
  53           this,SIGNAL(KeyPressed(QKeyEvent*)) );
  54   connect(anInteractor,SIGNAL(KeyReleased(QKeyEvent*)),
  55           this,SIGNAL(KeyReleased(QKeyEvent*)));
  56   connect(anInteractor,SIGNAL(MouseButtonPressed(QMouseEvent*)),
  57           this,SIGNAL(MouseButtonPressed(QMouseEvent*)));
  58   connect(anInteractor,SIGNAL(MouseButtonReleased(QMouseEvent*)),
  59           this,SIGNAL(MouseButtonReleased(QMouseEvent*)));
  60   connect(anInteractor,SIGNAL(MouseDoubleClicked(QMouseEvent*)),
  61           this,SIGNAL(MouseDoubleClicked(QMouseEvent*)));
  62   connect(anInteractor,SIGNAL(MouseMove(QMouseEvent*)),
  63           this,SIGNAL(MouseMove(QMouseEvent*)));
  64   connect(anInteractor,SIGNAL(contextMenuRequested(QContextMenuEvent*)),
  65           this,SIGNAL(contextMenuRequested(QContextMenuEvent*)));
  66   connect(anInteractor,SIGNAL(selectionChanged()),
  67           this,SIGNAL(selectionChanged()));
  68 }
  69
  70 /*!
  71   Destructor
  72 */
  73 SVTK_SignalHandler
  74 ::~SVTK_SignalHandler()
  75 {
  76 }
  77
  78 /*!
  79   \return corresponding svtk main window
  80 */
  81 SVTK_ViewWindow*
  82 SVTK_SignalHandler
  83 ::GetMainWindow()
  84 {
  85   return myMainWindow;
  86 }
  87
  88
  89 /*!
  90   Redirect the request to #SVTK_ViewWindow::Repaint (just for flexibility)
  91 */
  92 void
  93 SVTK_SignalHandler
  94 ::Repaint(bool theUpdateTrihedron)
  95 {
  96   myMainWindow->Repaint(theUpdateTrihedron);
  97 }
  98
  99 /*!
 100   Redirect the request to #SVTK_ViewWindow::GetRenderer (just for flexibility)
 101 */
 102 SVTK_Renderer*
 103 SVTK_SignalHandler
 104 ::GetRenderer()
 105 {
 106   return myMainWindow->GetRenderer();
 107 }
 108
 109 /*!
 110   Redirect the request to #SVTK_ViewWindow::getRenderer (just for flexibility)
 111 */
 112 vtkRenderer*
 113 SVTK_SignalHandler
 114 ::getRenderer()
 115 {
 116   return myMainWindow->getRenderer();
 117 }
 118
 119 namespace SVTK
 120 {
 121   struct THighlightAction
 122   {
 123     bool myIsHighlight;
 124     THighlightAction( bool theIsHighlight ):
 125       myIsHighlight( theIsHighlight )
 126     {}
 127
 128     void
 129     operator()( SALOME_Actor* theActor)
 130     {
 131       if(theActor->GetMapper() && theActor->hasIO()){
 132         theActor->Highlight( myIsHighlight );
 133       }
 134     }
 135   };
 136 }
 137
 138 /*!
 139   SLOT: called on selection change
 140 */
 141 void
 142 SVTK_SignalHandler
 143 ::onSelectionChanged()
 144 {
 145   VTK::ActorCollectionCopy aCopy(myMainWindow->getRenderer()->GetActors());
 146   vtkActorCollection* anActors = aCopy.GetActors();
 147
 148   using namespace SVTK;
 149   ForEach<SALOME_Actor>(anActors,
 150                         THighlightAction( false ));
 151   SVTK_Selector* aSelector = myMainWindow->GetSelector();
 152   const SALOME_ListIO& aListIO = aSelector->StoredIObjects();
 153   SALOME_ListIteratorOfListIO anIter(aListIO);
 154   for(; anIter.More(); anIter.Next()){
 155     ForEachIf<SALOME_Actor>(anActors,
 156                             TIsSameIObject<SALOME_Actor>(anIter.Value()),
 157                             THighlightAction(true));
 158   }
 159
 160   myMainWindow->Repaint(false);
 161 }
 162
 163 /*!
 164   Constructor
 165 */
 166 SVTK_View
 167 ::SVTK_View(SVTK_ViewWindow* theMainWindow) :
 168   SVTK_SignalHandler(theMainWindow)
 169 {
 170 }
 171
 172 /*!
 173   Destructor
 174 */
 175 SVTK_View
 176 ::~SVTK_View()
 177 {
 178 }
 179
 180 /*!
 181   Unhilights all objects in viewer
 182 */
 183 void
 184 SVTK_View
 185 ::unHighlightAll()
 186 {
 187   using namespace SVTK;
 188   VTK::ActorCollectionCopy aCopy(getRenderer()->GetActors());
 189   ForEach<SALOME_Actor>(aCopy.GetActors(),
 190                         THighlightAction( false ));
 191   Repaint();
 192 }
 193
 194 /*!
 195   Hilights/unhilights object in viewer
 196   \param theIO - object to be updated
 197   \param theIsHighlight - if it is true, object will be hilighted, otherwise it will be unhilighted
 198   \param theIsUpdate - update current viewer
 199 */
 200 void
 201 SVTK_View
 202 ::highlight( const Handle(SALOME_InteractiveObject)& theIO,
 203              bool theIsHighlight,
 204              bool /*theIsUpdate*/ )
 205 {
 206   using namespace SVTK;
 207   VTK::ActorCollectionCopy aCopy(getRenderer()->GetActors());
 208   ForEachIf<SALOME_Actor>(aCopy.GetActors(),
 209                           TIsSameIObject<SALOME_Actor>( theIO ),
 210                           THighlightAction(theIsHighlight));
 211   Repaint();
 212 }
 213
 214 /*!
 215   Display object
 216   \param theEntry - entry that corresponds to intractive objects
 217 */
 218 Handle(SALOME_InteractiveObject)
 219 SVTK_View
 220 ::FindIObject(const char* theEntry)
 221 {
 222   using namespace SVTK;
 223   VTK::ActorCollectionCopy aCopy(getRenderer()->GetActors());
 224   SALOME_Actor* anActor =
 225     Find<SALOME_Actor>(aCopy.GetActors(),
 226                        TIsSameEntry<SALOME_Actor>(theEntry));
 227   if(anActor != NULL)
 228     return anActor->getIO();
 229
 230   return NULL;
 231 }
 232
 233 /*!
 234    Redirect the request to #SVTK_Renderer::SetPreselectionProp
 235 */
 236 void
 237 SVTK_View
 238 ::SetSelectionProp(const double& theRed,
 239                    const double& theGreen,
 240                    const double& theBlue,
 241                    const int& theWidth)
 242 {
 243   GetRenderer()->SetSelectionProp(theRed,theGreen,theBlue,theWidth);
 244 }
 245
 246 /*!
 247   Redirect the request to #SVTK_Renderer::SetPreselectionProp
 248 */
 249 void
 250 SVTK_View
 251 ::SetPreselectionProp(const double& theRed,
 252                       const double& theGreen,
 253                       const double& theBlue,
 254                       const int& theWidth)
 255 {
 256   GetRenderer()->SetPreselectionProp(theRed,theGreen,theBlue,theWidth);
 257 }
 258
 259 /*!
 260   Redirect the request to #SVTK_Renderer::SetPreselectionProp
 261 */
 262 void
 263 SVTK_View
 264 ::SetSelectionTolerance(const double& theTolNodes,
 265                         const double& theTolCell,
 266                         const double& theTolObjects)
 267 {
 268   GetRenderer()->SetSelectionTolerance(theTolNodes, theTolCell, theTolObjects);
 269 }
 270
 271 /*!
 272   \return true if object is in viewer or in collector
 273   \param theIO - object to be checked
 274 */
 275 bool
 276 SVTK_View
 277 ::isInViewer(const Handle(SALOME_InteractiveObject)& theIObject)
 278 {
 279   using namespace SVTK;
 280   VTK::ActorCollectionCopy aCopy(getRenderer()->GetActors());
 281   SALOME_Actor* anActor =
 282     Find<SALOME_Actor>(aCopy.GetActors(),
 283                        TIsSameIObject<SALOME_Actor>(theIObject));
 284   return anActor != NULL;
 285 }
 286
 287 namespace SVTK
 288 {
 289   struct TIsActorVisibleAction
 290   {
 291     bool& myResult;
 292     TIsActorVisibleAction(bool& theResult):
 293       myResult(theResult)
 294     {
 295       myResult = false;
 296     }
 297     void
 298     operator()(SALOME_Actor* theActor)
 299     {
 300       if( !myResult )
 301         myResult = theActor->GetVisibility();
 302     }
 303   };
 304 }
 305
 306 /*!
 307   \return true if object is displayed in viewer
 308   \param theIO - object to be checked
 309 */
 310 bool
 311 SVTK_View
 312 ::isVisible(const Handle(SALOME_InteractiveObject)& theIObject)
 313 {
 314   using namespace SVTK;
 315   bool aResult;
 316   VTK::ActorCollectionCopy aCopy(getRenderer()->GetActors());
 317   ForEachIf<SALOME_Actor>(aCopy.GetActors(),
 318                           TIsSameIObject<SALOME_Actor>(theIObject),
 319                           TIsActorVisibleAction(aResult));
 320   return aResult;
 321 }
 322
 323 /*!
 324   Changes name of object
 325   \param theIObject - object to be renamed
 326   \param theName - new name
 327 */
 328 void
 329 SVTK_View
 330 ::rename(const Handle(SALOME_InteractiveObject)& theIObject,
 331          const QString& theName)
 332 {
 333   using namespace SVTK;
 334   VTK::ActorCollectionCopy aCopy(getRenderer()->GetActors());
 335   ForEachIf<SALOME_Actor>(aCopy.GetActors(),
 336                           TIsSameIObject<SALOME_Actor>(theIObject),
 337                           TSetFunction<SALOME_Actor,const char*,const char*>
 338                           (&SALOME_Actor::setName,theName.toUtf8().data()));
 339 }
 340
 341 /*!
 342   \return current display mode (obsolete)
 343 */
 344 int
 345 SVTK_View
 346 ::GetDisplayMode()
 347 {
 348   return myDisplayMode;
 349 }
 350
 351 /*!
 352   Set current display mode
 353   \param theMode - new display mode
 354 */
 355 void
 356 SVTK_View
 357 ::SetDisplayMode(int theMode)
 358 {
 359   if(theMode == 0)
 360     ChangeRepresentationToWireframe();
 361   else if (theMode == 1)
 362     ChangeRepresentationToSurface();
 363   else if (theMode == 2) {
 364     ChangeRepresentationToSurfaceWithEdges();
 365     theMode++;
 366   }
 367   myDisplayMode = theMode;
 368 }
 369
 370 /*!
 371   Set current display mode
 372   \param theIObject - object
 373   \param theMode - new display mode
 374 */
 375 void
 376 SVTK_View
 377 ::SetDisplayMode(const Handle(SALOME_InteractiveObject)& theIObject,
 378                  int theMode)
 379 {
 380   using namespace SVTK;
 381   VTK::ActorCollectionCopy aCopy(getRenderer()->GetActors());
 382   ForEachIf<SALOME_Actor>(aCopy.GetActors(),
 383                           TIsSameIObject<SALOME_Actor>(theIObject),
 384                           TSetFunction<SALOME_Actor,int>
 385                           (&SALOME_Actor::setDisplayMode,theMode));
 386 }
 387
 388 /*!
 389   Change all actors to wireframe
 390 */
 391 void
 392 SVTK_View
 393 ::ChangeRepresentationToWireframe()
 394 {
 395   VTK::ActorCollectionCopy aCopy(getRenderer()->GetActors());
 396   ChangeRepresentationToWireframe(aCopy.GetActors());
 397 }
 398
 399 /*!
 400   Change all actors to shading
 401 */
 402 void
 403 SVTK_View
 404 ::ChangeRepresentationToSurface()
 405 {
 406   VTK::ActorCollectionCopy aCopy(getRenderer()->GetActors());
 407   ChangeRepresentationToSurface(aCopy.GetActors());
 408 }
 409
 410 /*!
 411   Change all actors to shading with edges
 412 */
 413 void
 414 SVTK_View
 415 ::ChangeRepresentationToSurfaceWithEdges()
 416 {
 417   VTK::ActorCollectionCopy aCopy(getRenderer()->GetActors());
 418   ChangeRepresentationToSurfaceWithEdges(aCopy.GetActors());
 419 }
 420
 421 /*!
 422   Change to wireframe a list of vtkactor
 423   theCollection - list of vtkactor
 424 */
 425 void
 426 SVTK_View
 427 ::ChangeRepresentationToWireframe(vtkActorCollection* theCollection)
 428 {
 429   using namespace SVTK;
 430   ForEach<SALOME_Actor>(theCollection,
 431                         TSetFunction<SALOME_Actor,int>
 432                         (&SALOME_Actor::setDisplayMode,0));
 433   Repaint();
 434 }
 435
 436 /*!
 437   Change to shading a list of vtkactor
 438   theCollection - list of vtkactor
 439 */
 440 void
 441 SVTK_View
 442 ::ChangeRepresentationToSurface(vtkActorCollection* theCollection)
 443 {
 444   using namespace SVTK;
 445   ForEach<SALOME_Actor>(theCollection,
 446                         TSetFunction<SALOME_Actor,int>
 447                         (&SALOME_Actor::setDisplayMode,1));
 448   Repaint();
 449 }
 450
 451 /*!
 452   Change to shading with edges a list of vtkactor
 453   theCollection - list of vtkactor
 454 */
 455 void
 456 SVTK_View
 457 ::ChangeRepresentationToSurfaceWithEdges(vtkActorCollection* theCollection)
 458 {
 459   using namespace SVTK;
 460   ForEach<SALOME_Actor>(theCollection,
 461                         TSetFunction<SALOME_Actor,int>
 462                         (&SALOME_Actor::setDisplayMode,3));
 463   Repaint();
 464 }
 465
 466 namespace SVTK
 467 {
 468   struct TErase
 469   {
 470     VTK::TSetFunction<vtkActor,int> mySetFunction;
 471     TErase():
 472       mySetFunction(&vtkActor::SetVisibility,false)
 473     {}
 474     void
 475     operator()(SALOME_Actor* theActor)
 476     {
 477       theActor->SetVisibility(false);
 478       // Erase dependent actors
 479       vtkActorCollection* aCollection = vtkActorCollection::New();
 480       theActor->GetChildActors(aCollection);
 481       VTK::ForEach<vtkActor>(aCollection,mySetFunction);
 482       aCollection->Delete();
 483     }
 484   };
 485 }
 486
 487 /*!
 488   To erase all existing VTK presentations
 489 */
 490 void
 491 SVTK_View
 492 ::EraseAll()
 493 {
 494   using namespace SVTK;
 495   VTK::ActorCollectionCopy aCopy(getRenderer()->GetActors());
 496   ForEach<SALOME_Actor>(aCopy.GetActors(),
 497                         TErase());
 498   Repaint();
 499 }
 500
 501 /*!
 502   To display all existing VTK presentations
 503 */
 504 void
 505 SVTK_View
 506 ::DisplayAll()
 507 {
 508   using namespace SVTK;
 509   VTK::ActorCollectionCopy aCopy(getRenderer()->GetActors());
 510   ForEach<SALOME_Actor>(aCopy.GetActors(),
 511                         TSetVisibility<SALOME_Actor>(true));
 512   Repaint();
 513 }
 514
 515 /*!
 516   To erase VTK presentation
 517   \param theActor - actor
 518   \param theIsUpdate - updates current viewer
 519 */
 520 void
 521 SVTK_View
 522 ::Erase(SALOME_Actor* theActor,
 523         bool theIsUpdate)
 524 {
 525   SVTK::TErase()(theActor);
 526
 527   if(theIsUpdate)
 528     Repaint();
 529 }
 530
 531
 532 /*!
 533   To erase VTK presentation
 534   \param theIObject - object
 535   \param theIsUpdate - updates current viewer
 536 */
 537 void
 538 SVTK_View
 539 ::Erase(const Handle(SALOME_InteractiveObject)& theIObject,
 540         bool theIsUpdate)
 541 {
 542   using namespace SVTK;
 543   VTK::ActorCollectionCopy aCopy(getRenderer()->GetActors());
 544   ForEachIf<SALOME_Actor>(aCopy.GetActors(),
 545                           TIsSameIObject<SALOME_Actor>(theIObject),
 546                           TErase());
 547   if(theIsUpdate)
 548     Repaint();
 549 }
 550
 551 /*!
 552   To display the VTK presentation
 553 */
 554 void
 555 SVTK_View
 556 ::Display(SALOME_Actor* theActor,
 557           bool theIsUpdate)
 558 {
 559   GetRenderer()->AddActor(theActor);
 560   theActor->SetVisibility(true);
 561
 562   if(theIsUpdate)
 563     Repaint();
 564 }
 565
 566 /*!
 567   To display the VTK presentation
 568 */
 569 void
 570 SVTK_View
 571 ::Display(const Handle(SALOME_InteractiveObject)& theIObject,
 572           bool theIsUpdate)
 573 {
 574   using namespace SVTK;
 575   VTK::ActorCollectionCopy aCopy(getRenderer()->GetActors());
 576   ForEachIf<SALOME_Actor>(aCopy.GetActors(),
 577                           TIsSameIObject<SALOME_Actor>(theIObject),
 578                           TSetVisibility<SALOME_Actor>(true));
 579
 580   if(theIsUpdate)
 581     Repaint();
 582 }
 583
 584 /*!
 585   To display VTK presentation with defined #SALOME_InteractiveObject and erase all others
 586 */
 587 void
 588 SVTK_View
 589 ::DisplayOnly(const Handle(SALOME_InteractiveObject)& theIObject)
 590 {
 591   EraseAll();
 592   Display(theIObject);
 593 }
 594
 595
 596 namespace SVTK
 597 {
 598   struct TRemoveAction
 599   {
 600     SVTK_Renderer* myRenderer;
 601     TRemoveAction(SVTK_Renderer* theRenderer):
 602       myRenderer(theRenderer)
 603     {}
 604     void
 605     operator()(SALOME_Actor* theActor)
 606     {
 607       myRenderer->RemoveActor(theActor);
 608     }
 609   };
 610 }
 611
 612 /*!
 613   To remove the VTK presentation
 614 */
 615 void
 616 SVTK_View
 617 ::Remove(const Handle(SALOME_InteractiveObject)& theIObject,
 618          bool theIsUpdate)
 619 {
 620   using namespace SVTK;
 621   VTK::ActorCollectionCopy aCopy(getRenderer()->GetActors());
 622   ForEachIf<SALOME_Actor>(aCopy.GetActors(),
 623                           TIsSameIObject<SALOME_Actor>(theIObject),
 624                           TRemoveAction(GetRenderer()));
 625   if(theIsUpdate)
 626     Repaint();
 627 }
 628
 629 /*!
 630   To remove the VTK presentation
 631 */
 632 void
 633 SVTK_View
 634 ::Remove(SALOME_Actor* theActor,
 635          bool theIsUpdate)
 636 {
 637   GetRenderer()->RemoveActor(theActor);
 638   if(theIsUpdate)
 639     Repaint();
 640 }
 641
 642 /*!
 643   To remove all VTK presentations
 644 */
 645 void
 646 SVTK_View
 647 ::RemoveAll(bool theIsUpdate)
 648 {
 649   vtkRenderer* aRenderer = getRenderer();
 650   VTK::ActorCollectionCopy aCopy(getRenderer()->GetActors());
 651   if(vtkActorCollection* anActors = aCopy.GetActors()){
 652     anActors->InitTraversal();
 653     while(vtkActor *anAct = anActors->GetNextActor()){
 654       if(SALOME_Actor* aSAct = SALOME_Actor::SafeDownCast(anAct)){
 655         if(aSAct->hasIO() && aSAct->getIO()->hasEntry())
 656           aRenderer->RemoveActor( anAct );
 657       }
 658     }
 659
 660     if(theIsUpdate)
 661       Repaint();
 662   }
 663 }
 664
 665 /*!
 666   \return current transparency
 667   \param theIObject - object
 668 */
 669 float
 670 SVTK_View
 671 ::GetTransparency(const Handle(SALOME_InteractiveObject)& theIObject)
 672 {
 673   using namespace SVTK;
 674   VTK::ActorCollectionCopy aCopy(getRenderer()->GetActors());
 675   SALOME_Actor* anActor =
 676     Find<SALOME_Actor>(aCopy.GetActors(),
 677                        TIsSameIObject<SALOME_Actor>(theIObject));
 678   if(anActor)
 679     return 1.0 - anActor->GetOpacity();
 680   return -1.0;
 681 }
 682
 683
 684 /*!
 685   Sets current transparency
 686   \param theIObject - object
 687   \param theTrans - new transparency
 688 */
 689 void
 690 SVTK_View
 691 ::SetTransparency(const Handle(SALOME_InteractiveObject)& theIObject,
 692                   float theTrans)
 693 {
 694   double anOpacity = 1.0 - theTrans;
 695   using namespace SVTK;
 696   VTK::ActorCollectionCopy aCopy(getRenderer()->GetActors());
 697   ForEachIf<SALOME_Actor>(aCopy.GetActors(),
 698                           TIsSameIObject<SALOME_Actor>(theIObject),
 699                           TSetFunction<SALOME_Actor,double>
 700                           (&SALOME_Actor::SetOpacity,anOpacity));
 701 }
 702
 703 /*!
 704   Change color
 705   \param theIObject - object
 706   \param theColor - new color
 707 */
 708 void
 709 SVTK_View
 710 ::SetColor(const Handle(SALOME_InteractiveObject)& theIObject,
 711            const QColor& theColor)
 712 {
 713   double aColor[3] = {theColor.red()/255., theColor.green()/255., theColor.blue()/255.};
 714
 715   using namespace SVTK;
 716   VTK::ActorCollectionCopy aCopy(getRenderer()->GetActors());
 717   ForEachIf<SALOME_Actor>(aCopy.GetActors(),
 718                           TIsSameIObject<SALOME_Actor>(theIObject),
 719                           TSetFunction<SALOME_Actor,const double*>
 720                           (&SALOME_Actor::SetColor,aColor));
 721 }
 722
 723
 724 /*!
 725   \return object color
 726   \param theIObject - object
 727 */
 728 QColor
 729 SVTK_View
 730 ::GetColor(const Handle(SALOME_InteractiveObject)& theIObject)
 731 {
 732   using namespace SVTK;
 733   VTK::ActorCollectionCopy aCopy(getRenderer()->GetActors());
 734   SALOME_Actor* anActor =
 735     Find<SALOME_Actor>(aCopy.GetActors(),
 736                        TIsSameIObject<SALOME_Actor>(theIObject));
 737   if(anActor){
 738     double r,g,b;
 739     anActor->GetColor(r,g,b);
 740     return QColor(int(r*255),int(g*255),int(b*255));
 741   }
 742
 743   return QColor(0,0,0);
 744 }
 745
 746 /*!
 747   Change material
 748   \param theIObject - object
 749   \param thePropF - property contained new properties of front material
 750   \param thePropB - property contained new properties of back material
 751 */
 752 void
 753 SVTK_View
 754 ::SetMaterial(const Handle(SALOME_InteractiveObject)& theIObject,
 755               vtkProperty* thePropF, vtkProperty* thePropB)
 756 {
 757   using namespace SVTK;
 758   VTK::ActorCollectionCopy aCopy(getRenderer()->GetActors());
 759   std::vector<vtkProperty*> aProps;
 760   aProps.push_back( thePropF );
 761   aProps.push_back( thePropB );
 762   ForEachIf<SALOME_Actor>(aCopy.GetActors(),
 763                           TIsSameIObject<SALOME_Actor>(theIObject),
 764                           TSetFunction<SALOME_Actor,std::vector<vtkProperty*> >
 765                           (&SALOME_Actor::SetMaterial,aProps));
 766 }
 767
 768 /*!
 769   Get current front material
 770   \param theIObject - object
 771   \return property contained front material properties of the given object
 772 */
 773 vtkProperty*
 774 SVTK_View
 775 ::GetFrontMaterial(const Handle(SALOME_InteractiveObject)& theIObject)
 776 {
 777   using namespace SVTK;
 778   VTK::ActorCollectionCopy aCopy(getRenderer()->GetActors());
 779   SALOME_Actor* anActor =
 780     Find<SALOME_Actor>(aCopy.GetActors(),
 781                        TIsSameIObject<SALOME_Actor>(theIObject));
 782   if(anActor)
 783     return anActor->GetFrontMaterial();
 784   return NULL;
 785 }
 786
 787 /*!
 788   Get current back material
 789   \param theIObject - object
 790   \return property contained back material properties of the given object
 791 */
 792 vtkProperty*
 793 SVTK_View
 794 ::GetBackMaterial(const Handle(SALOME_InteractiveObject)& theIObject)
 795 {
 796   using namespace SVTK;
 797   VTK::ActorCollectionCopy aCopy(getRenderer()->GetActors());
 798   SALOME_Actor* anActor =
 799     Find<SALOME_Actor>(aCopy.GetActors(),
 800                        TIsSameIObject<SALOME_Actor>(theIObject));
 801   if(anActor)
 802     return anActor->GetBackMaterial();
 803   return NULL;
 804 }
 805
 806 /*!
 807   \Collect objects visible in viewer
 808   \param theList - visible objects collection
 809 */
 810 void SVTK_View::GetVisible( SALOME_ListIO& theList )
 811 {
 812   using namespace SVTK;
 813   VTK::ActorCollectionCopy aCopy(getRenderer()->GetActors());
 814   ForEach<SALOME_Actor>(aCopy.GetActors(),
 815                         TCollectIfVisible<SALOME_Actor>(theList));
 816 }