src/PartSet/PartSet_SketcherMgr.cpp

   1 // Copyright (C) 2014-20xx CEA/DEN, EDF R&D
   2
   3 // File:        PartSet_SketcherMgr.cpp
   4 // Created:     19 Dec 2014
   5 // Author:      Vitaly SMETANNIKOV
   6
   7 #include "PartSet_SketcherMgr.h"
   8 #include "PartSet_Module.h"
   9 #include "PartSet_WidgetPoint2D.h"
  10 #include "PartSet_Tools.h"
  11
  12 #include <XGUI_ModuleConnector.h>
  13 #include <XGUI_Displayer.h>
  14 #include <XGUI_Workshop.h>
  15 #include <XGUI_Selection.h>
  16 #include <XGUI_SelectionMgr.h>
  17
  18 #include <ModuleBase_IViewer.h>
  19 #include <ModuleBase_IWorkshop.h>
  20 #include <ModuleBase_IViewWindow.h>
  21 #include <ModuleBase_Operation.h>
  22 #include <ModuleBase_ISelection.h>
  23 #include <ModuleBase_IPropertyPanel.h>
  24 #include <ModuleBase_Operation.h>
  25
  26 #include <Events_Loop.h>
  27
  28 #include <SketchPlugin_Line.h>
  29 #include <SketchPlugin_Sketch.h>
  30 #include <SketchPlugin_Point.h>
  31 #include <SketchPlugin_Arc.h>
  32 #include <SketchPlugin_Circle.h>
  33 #include <SketchPlugin_ConstraintLength.h>
  34 #include <SketchPlugin_ConstraintDistance.h>
  35 #include <SketchPlugin_ConstraintParallel.h>
  36 #include <SketchPlugin_ConstraintPerpendicular.h>
  37 #include <SketchPlugin_ConstraintRadius.h>
  38 #include <SketchPlugin_ConstraintRigid.h>
  39
  40 #include <SelectMgr_IndexedMapOfOwner.hxx>
  41 #include <StdSelect_BRepOwner.hxx>
  42
  43 #include <ModelAPI_Events.h>
  44
  45 #include <QMouseEvent>
  46 #include <QApplication>
  47
  48
  49
  50
  51 /// Returns list of unique objects by sum of objects from List1 and List2
  52 QList<ObjectPtr> getSumList(const QList<ModuleBase_ViewerPrs>& theList1,
  53                                        const QList<ModuleBase_ViewerPrs>& theList2)
  54 {
  55   QList<ObjectPtr> aRes;
  56   foreach (ModuleBase_ViewerPrs aPrs, theList1) {
  57     if (!aRes.contains(aPrs.object()))
  58       aRes.append(aPrs.object());
  59   }
  60   foreach (ModuleBase_ViewerPrs aPrs, theList2) {
  61     if (!aRes.contains(aPrs.object()))
  62       aRes.append(aPrs.object());
  63   }
  64   return aRes;
  65 }
  66
  67
  68
  69
  70 PartSet_SketcherMgr::PartSet_SketcherMgr(PartSet_Module* theModule)
  71   : QObject(theModule), myModule(theModule), myIsDragging(false), myDragDone(false)
  72 {
  73   ModuleBase_IWorkshop* aWorkshop = myModule->workshop();
  74   ModuleBase_IViewer* aViewer = aWorkshop->viewer();
  75
  76   connect(aViewer, SIGNAL(mousePress(ModuleBase_IViewWindow*, QMouseEvent*)),
  77           this, SLOT(onMousePressed(ModuleBase_IViewWindow*, QMouseEvent*)));
  78
  79   connect(aViewer, SIGNAL(mouseRelease(ModuleBase_IViewWindow*, QMouseEvent*)),
  80           this, SLOT(onMouseReleased(ModuleBase_IViewWindow*, QMouseEvent*)));
  81
  82   connect(aViewer, SIGNAL(mouseMove(ModuleBase_IViewWindow*, QMouseEvent*)),
  83           this, SLOT(onMouseMoved(ModuleBase_IViewWindow*, QMouseEvent*)));
  84
  85   connect(aViewer, SIGNAL(mouseDoubleClick(ModuleBase_IViewWindow*, QMouseEvent*)),
  86           this, SLOT(onMouseDoubleClick(ModuleBase_IViewWindow*, QMouseEvent*)));
  87 }
  88
  89 PartSet_SketcherMgr::~PartSet_SketcherMgr()
  90 {
  91   if (!myPlaneFilter.IsNull())
  92     myPlaneFilter.Nullify();
  93 }
  94
  95 void PartSet_SketcherMgr::onMousePressed(ModuleBase_IViewWindow* theWnd, QMouseEvent* theEvent)
  96 {
  97   //
  98   if (!(theEvent->buttons() & Qt::LeftButton))
  99     return;
 100
 101   ModuleBase_IWorkshop* aWorkshop = myModule->workshop();
 102   ModuleBase_Operation* aOperation = aWorkshop->currentOperation();
 103   // Use only for sketch operations
 104   if (aOperation && myCurrentSketch) {
 105     if (!PartSet_Tools::sketchPlane(myCurrentSketch))
 106       return;
 107
 108     bool isSketcher = (aOperation->id().toStdString() == SketchPlugin_Sketch::ID());
 109     bool isSketchOpe = sketchOperationIdList().contains(aOperation->id());
 110
 111     // Avoid non-sketch operations
 112     if ((!isSketchOpe) && (!isSketcher))
 113       return;
 114
 115     bool isEditing = aOperation->isEditOperation();
 116
 117     // Ignore creation sketch operation
 118     if ((!isSketcher) && (!isEditing))
 119       return;
 120
 121     if (theEvent->modifiers()) {
 122       // If user performs multiselection
 123       if (isSketchOpe /* && (!isSketcher)*/)
 124         if (!aOperation->commit())
 125           aOperation->abort();
 126       return;
 127     }
 128     // Remember highlighted objects for editing
 129     ModuleBase_ISelection* aSelect = aWorkshop->selection();
 130     QList<ModuleBase_ViewerPrs> aHighlighted = aSelect->getHighlighted();
 131     QList<ModuleBase_ViewerPrs> aSelected = aSelect->getSelected();
 132     myEditingFeatures.clear();
 133     myEditingAttr.clear();
 134
 135     bool aHasShift = (theEvent->modifiers() & Qt::ShiftModifier);
 136     QObjectPtrList aSelObjects;
 137     if (aHasShift)
 138       aSelObjects = getSumList(aHighlighted, aSelected);
 139     else {
 140       foreach (ModuleBase_ViewerPrs aPrs, aHighlighted) {
 141         aSelObjects.append(aPrs.object());
 142       }
 143     }
 144     if ((aSelObjects.size() == 0)) {
 145       if (isSketchOpe && (!isSketcher))
 146         // commit previous operation
 147         if (!aOperation->commit())
 148           aOperation->abort();
 149       return;
 150     }
 151     if (aSelObjects.size() == 1) {
 152       // Move by selected shape (vertex). Can be used only for single selection
 153       foreach(ModuleBase_ViewerPrs aPrs, aHighlighted) {
 154         FeaturePtr aFeature = ModelAPI_Feature::feature(aHighlighted.first().object());
 155         if (aFeature) {
 156           myEditingFeatures.append(aFeature);
 157           TopoDS_Shape aShape = aPrs.shape();
 158           if (!aShape.IsNull()) {
 159             if (aShape.ShapeType() == TopAbs_VERTEX) {
 160               AttributePtr aAttr = PartSet_Tools::findAttributeBy2dPoint(myEditingFeatures.first(),
 161                                                                          aShape, myCurrentSketch);
 162               if (aAttr)
 163                 myEditingAttr.append(aAttr);
 164             }
 165           }
 166         }
 167       }
 168     } else {
 169       // Provide multi-selection. Can be used only for features
 170       foreach (ObjectPtr aObj, aSelObjects) {
 171         FeaturePtr aFeature = ModelAPI_Feature::feature(aObj);
 172         if (aFeature && (!myEditingFeatures.contains(aFeature)))
 173           myEditingFeatures.append(aFeature);
 174       }
 175
 176     }
 177     // If nothing highlighted - return
 178     if (myEditingFeatures.size() == 0)
 179       return;
 180
 181     if (isSketcher) {
 182       myIsDragging = true;
 183       get2dPoint(theWnd, theEvent, myCurX, myCurY);
 184       myDragDone = false;
 185       aWorkshop->viewer()->enableMultiselection(false);
 186       launchEditing();
 187
 188     } else if (isSketchOpe && isEditing) {
 189       // If selected another object
 190       aOperation->abort();
 191
 192       myIsDragging = true;
 193       get2dPoint(theWnd, theEvent, myCurX, myCurY);
 194       myDragDone = false;
 195       aWorkshop->viewer()->enableMultiselection(false);
 196
 197       // This is necessary in order to finalize previous operation
 198       QApplication::processEvents();
 199       launchEditing();
 200     }
 201   }
 202 }
 203
 204 void PartSet_SketcherMgr::onMouseReleased(ModuleBase_IViewWindow* theWnd, QMouseEvent* theEvent)
 205 {
 206   ModuleBase_IWorkshop* aWorkshop = myModule->workshop();
 207   ModuleBase_Operation* aOp = aWorkshop->currentOperation();
 208   if (!aOp)
 209     return;
 210   if (!sketchOperationIdList().contains(aOp->id()))
 211     return;
 212
 213   // Only for sketcher operations
 214   ModuleBase_IViewer* aViewer = aWorkshop->viewer();
 215   if (myIsDragging) {
 216     myIsDragging = false;
 217     if (myDragDone) {
 218       aViewer->enableMultiselection(true);
 219       aOp->commit();
 220       myEditingFeatures.clear();
 221       myEditingAttr.clear();
 222
 223       // Reselect edited object
 224       aViewer->AISContext()->MoveTo(theEvent->x(), theEvent->y(), theWnd->v3dView());
 225       if (theEvent->modifiers() & Qt::ShiftModifier)
 226         aViewer->AISContext()->ShiftSelect();
 227       else
 228         aViewer->AISContext()->Select();
 229       return;
 230     }
 231   }
 232   if (!aViewer->isMultiSelectionEnabled()) {
 233     aViewer->enableMultiselection(true);
 234   }
 235 }
 236
 237 void PartSet_SketcherMgr::onMouseMoved(ModuleBase_IViewWindow* theWnd, QMouseEvent* theEvent)
 238 {
 239   if (myIsDragging) {
 240     ModuleBase_Operation* aOperation = myModule->workshop()->currentOperation();
 241     if (aOperation->id().toStdString() == SketchPlugin_Sketch::ID())
 242       return; // No edit operation activated
 243
 244     static Events_ID anEvent = Events_Loop::eventByName(EVENT_OBJECT_MOVED);
 245     Handle(V3d_View) aView = theWnd->v3dView();
 246     gp_Pnt aPoint = PartSet_Tools::convertClickToPoint(theEvent->pos(), aView);
 247     double aX, aY;
 248     PartSet_Tools::convertTo2D(aPoint, myCurrentSketch, aView, aX, aY);
 249     double dX =  aX - myCurX;
 250     double dY =  aY - myCurY;
 251
 252     if ((aOperation->id().toStdString() == SketchPlugin_Line::ID()) &&
 253         (myEditingAttr.size() == 1) &&
 254         myEditingAttr.first()) {
 255       // probably we have prehighlighted point
 256       AttributePtr aAttr = myEditingAttr.first();
 257       std::string aAttrId = aAttr->id();
 258       ModuleBase_IPropertyPanel* aPanel = aOperation->propertyPanel();
 259       QList<ModuleBase_ModelWidget*> aWidgets = aPanel->modelWidgets();
 260       // Find corresponded widget to provide dragging
 261       foreach (ModuleBase_ModelWidget* aWgt, aWidgets) {
 262         if (aWgt->attributeID() == aAttrId) {
 263           PartSet_WidgetPoint2D* aWgt2d = dynamic_cast<PartSet_WidgetPoint2D*>(aWgt);
 264           if (aWgt2d) {
 265             aWgt2d->setPoint(aWgt2d->x() + dX, aWgt2d->y() + dY);
 266             break;
 267           }
 268         }
 269       }
 270     } else {
 271       foreach(FeaturePtr aFeature, myEditingFeatures) {
 272         std::shared_ptr<SketchPlugin_Feature> aSketchFeature =
 273           std::dynamic_pointer_cast<SketchPlugin_Feature>(aFeature);
 274         if (aSketchFeature) {
 275           // save the previous selection
 276           /*ModuleBase_IWorkshop* aWorkshop = myModule->workshop();
 277           XGUI_ModuleConnector* aConnector = dynamic_cast<XGUI_ModuleConnector*>(aWorkshop);
 278           XGUI_Displayer* aDisplayer = aConnector->workshop()->displayer();
 279           QIntList anActivatedModes;
 280
 281           ResultPtr aResult = aSketchFeature->firstResult();
 282
 283           aDisplayer->getModesOfActivation(aResult, anActivatedModes);
 284
 285           std::list<AttributePtr> aSelectedAttributes;
 286           getCurrentSelection(aSketchFeature, myCurrentSketch, aWorkshop, aSelectedAttributes);*/
 287           // save the previous selection: end
 288
 289
 290           aSketchFeature->move(dX, dY);
 291           ModelAPI_EventCreator::get()->sendUpdated(aSketchFeature, anEvent);
 292           /*
 293           // TODO: the selection restore should be after the AIS presentation is rebuilt
 294           Events_Loop::loop()->flush(Events_Loop::eventByName(EVENT_OBJECT_MOVED));
 295           Events_Loop::loop()->flush(Events_Loop::eventByName(EVENT_OBJECT_UPDATED));
 296
 297           // restore the previous selection
 298           aResult = aSketchFeature->firstResult();
 299             aDisplayer->activate(aResult, anActivatedModes);
 300
 301           SelectMgr_IndexedMapOfOwner anOwnersToSelect;
 302           getSelectionOwners(aSketchFeature, myCurrentSketch, aWorkshop, aSelectedAttributes,
 303                              anOwnersToSelect);
 304
 305           ModuleBase_IViewer* aViewer = aWorkshop->viewer();
 306           Handle(AIS_InteractiveContext) aContext = aViewer->AISContext();
 307           for (Standard_Integer i = 1, n = anOwnersToSelect.Extent(); i <= n; i++)
 308             aContext->AddOrRemoveSelected(anOwnersToSelect(i), false); // SetSelected()
 309
 310           aContext->UpdateCurrentViewer();
 311           // restore the previous selection*/
 312         }
 313       }
 314       // TODO: set here
 315       Events_Loop::loop()->flush(Events_Loop::eventByName(EVENT_OBJECT_MOVED));
 316       Events_Loop::loop()->flush(Events_Loop::eventByName(EVENT_OBJECT_UPDATED));
 317     }
 318     myDragDone = true;
 319     myCurX = aX;
 320     myCurY = aY;
 321   }
 322 }
 323
 324 void PartSet_SketcherMgr::onMouseDoubleClick(ModuleBase_IViewWindow* theWnd, QMouseEvent* theEvent)
 325 {
 326   ModuleBase_Operation* aOperation = myModule->workshop()->currentOperation();
 327   if (aOperation && aOperation->isEditOperation()) {
 328     std::string aId = aOperation->id().toStdString();
 329     if ((aId == SketchPlugin_ConstraintLength::ID()) ||
 330       (aId == SketchPlugin_ConstraintDistance::ID()) ||
 331       (aId == SketchPlugin_ConstraintRadius::ID()))
 332     {
 333       // Activate dimension value editing on double click
 334       ModuleBase_IPropertyPanel* aPanel = aOperation->propertyPanel();
 335       QList<ModuleBase_ModelWidget*> aWidgets = aPanel->modelWidgets();
 336       // Find corresponded widget to activate value editing
 337       foreach (ModuleBase_ModelWidget* aWgt, aWidgets) {
 338         if (aWgt->attributeID() == "ConstraintValue") {
 339           aWgt->focusTo();
 340           return;
 341         }
 342       }
 343     }
 344   }
 345 }
 346
 347 void PartSet_SketcherMgr::get2dPoint(ModuleBase_IViewWindow* theWnd, QMouseEvent* theEvent,
 348                                 double& theX, double& theY)
 349 {
 350   Handle(V3d_View) aView = theWnd->v3dView();
 351   gp_Pnt aPoint = PartSet_Tools::convertClickToPoint(theEvent->pos(), aView);
 352   PartSet_Tools::convertTo2D(aPoint, myCurrentSketch, aView, theX, theY);
 353 }
 354
 355 void PartSet_SketcherMgr::launchEditing()
 356 {
 357   if (myEditingFeatures.size() > 0) {
 358     FeaturePtr aFeature = myEditingFeatures.first();
 359     std::shared_ptr<SketchPlugin_Feature> aSPFeature =
 360               std::dynamic_pointer_cast<SketchPlugin_Feature>(aFeature);
 361     if (aSPFeature) {
 362       myModule->editFeature(aSPFeature);
 363     }
 364   }
 365 }
 366
 367
 368 QStringList PartSet_SketcherMgr::sketchOperationIdList()
 369 {
 370   static QStringList aIds;
 371   if (aIds.size() == 0) {
 372     aIds << SketchPlugin_Line::ID().c_str();
 373     aIds << SketchPlugin_Point::ID().c_str();
 374     aIds << SketchPlugin_Arc::ID().c_str();
 375     aIds << SketchPlugin_Circle::ID().c_str();
 376     aIds << SketchPlugin_ConstraintLength::ID().c_str();
 377     aIds << SketchPlugin_ConstraintDistance::ID().c_str();
 378     aIds << SketchPlugin_ConstraintRigid::ID().c_str();
 379     aIds << SketchPlugin_ConstraintRadius::ID().c_str();
 380     aIds << SketchPlugin_ConstraintPerpendicular::ID().c_str();
 381     aIds << SketchPlugin_ConstraintParallel::ID().c_str();
 382   }
 383   return aIds;
 384 }
 385
 386 void PartSet_SketcherMgr::startSketch(ModuleBase_Operation* theOperation)
 387 {
 388   // Display all sketcher sub-Objects
 389   myCurrentSketch = std::dynamic_pointer_cast<ModelAPI_CompositeFeature>(theOperation->feature());
 390   XGUI_ModuleConnector* aConnector = dynamic_cast<XGUI_ModuleConnector*>(myModule->workshop());
 391   XGUI_Displayer* aDisplayer = aConnector->workshop()->displayer();
 392
 393   // Hide sketcher result
 394   std::list<ResultPtr> aResults = myCurrentSketch->results();
 395   std::list<ResultPtr>::const_iterator aIt;
 396   for (aIt = aResults.begin(); aIt != aResults.end(); ++aIt) {
 397     aDisplayer->erase((*aIt), false);
 398   }
 399   aDisplayer->erase(myCurrentSketch, false);
 400
 401   // Display sketcher objects
 402   for (int i = 0; i < myCurrentSketch->numberOfSubs(); i++) {
 403     FeaturePtr aFeature = myCurrentSketch->subFeature(i);
 404     std::list<ResultPtr> aResults = aFeature->results();
 405     std::list<ResultPtr>::const_iterator aIt;
 406     for (aIt = aResults.begin(); aIt != aResults.end(); ++aIt) {
 407       aDisplayer->display((*aIt), false);
 408     }
 409     aDisplayer->display(aFeature, false);
 410   }
 411
 412   if (myPlaneFilter.IsNull())
 413     myPlaneFilter = new ModuleBase_ShapeInPlaneFilter();
 414
 415   myModule->workshop()->viewer()->addSelectionFilter(myPlaneFilter);
 416   if (theOperation->isEditOperation()) {
 417     // If it is editing of sketch then it means that plane is already defined
 418     std::shared_ptr<GeomAPI_Pln> aPln = PartSet_Tools::sketchPlane(myCurrentSketch);
 419     myPlaneFilter->setPlane(aPln->impl<gp_Pln>());
 420   }
 421   aDisplayer->updateViewer();
 422 }
 423
 424 void PartSet_SketcherMgr::stopSketch(ModuleBase_Operation* theOperation)
 425 {
 426   DataPtr aData = myCurrentSketch->data();
 427   if ((!aData) || (!aData->isValid())) {
 428     // The sketch was aborted
 429     myCurrentSketch = CompositeFeaturePtr();
 430     myModule->workshop()->viewer()->removeSelectionFilter(myPlaneFilter);
 431     return;
 432   }
 433   // Hide all sketcher sub-Objects
 434   XGUI_ModuleConnector* aConnector = dynamic_cast<XGUI_ModuleConnector*>(myModule->workshop());
 435   XGUI_Displayer* aDisplayer = aConnector->workshop()->displayer();
 436   for (int i = 0; i < myCurrentSketch->numberOfSubs(); i++) {
 437     FeaturePtr aFeature = myCurrentSketch->subFeature(i);
 438     std::list<ResultPtr> aResults = aFeature->results();
 439     std::list<ResultPtr>::const_iterator aIt;
 440     for (aIt = aResults.begin(); aIt != aResults.end(); ++aIt) {
 441       aDisplayer->erase((*aIt), false);
 442     }
 443     aDisplayer->erase(aFeature, false);
 444   }
 445   // Display sketcher result
 446   std::list<ResultPtr> aResults = myCurrentSketch->results();
 447   std::list<ResultPtr>::const_iterator aIt;
 448   for (aIt = aResults.begin(); aIt != aResults.end(); ++aIt) {
 449     aDisplayer->display((*aIt), false);
 450   }
 451   aDisplayer->display(myCurrentSketch);
 452
 453   myCurrentSketch = CompositeFeaturePtr();
 454   myModule->workshop()->viewer()->removeSelectionFilter(myPlaneFilter);
 455   aDisplayer->updateViewer();
 456 }
 457
 458
 459 void PartSet_SketcherMgr::onPlaneSelected(const std::shared_ptr<GeomAPI_Pln>& thePln)
 460 {
 461   myPlaneFilter->setPlane(thePln->impl<gp_Pln>());
 462 }
 463
 464 void PartSet_SketcherMgr::getCurrentSelection(const ObjectPtr& theObject,
 465                                               const FeaturePtr& theSketch,
 466                                               ModuleBase_IWorkshop* theWorkshop,
 467                                               std::list<AttributePtr>& theSelectedAttributes)
 468 {
 469   FeaturePtr aFeature = ModelAPI_Feature::feature(theObject);
 470   if (aFeature.get() == NULL)
 471     return;
 472
 473   ModuleBase_IViewer* aViewer = theWorkshop->viewer();
 474   Handle(AIS_InteractiveContext) aContext = aViewer->AISContext();
 475   XGUI_ModuleConnector* aConnector = dynamic_cast<XGUI_ModuleConnector*>(theWorkshop);
 476   XGUI_Displayer* aDisplayer = aConnector->workshop()->displayer();
 477
 478   // TODO: check all results and IPresentable feature
 479   ResultPtr aResult = aFeature->firstResult();
 480
 481   bool isVisibleSketch = aDisplayer->isVisible(aResult);
 482   AISObjectPtr aAISObj = aDisplayer->getAISObject(aResult);
 483
 484   if (aAISObj.get() != NULL) {
 485     Handle(AIS_InteractiveObject) anAISIO = aAISObj->impl<Handle(AIS_InteractiveObject)>();
 486     for (aContext->InitSelected(); aContext->MoreSelected(); aContext->NextSelected())
 487     {
 488       Handle(StdSelect_BRepOwner) aBRepOwner = Handle(StdSelect_BRepOwner)::DownCast(
 489                                                                       aContext->SelectedOwner());
 490       if (aBRepOwner.IsNull()) continue;
 491
 492       Handle(AIS_InteractiveObject) anIO = Handle(AIS_InteractiveObject)::DownCast(
 493                                                                        aBRepOwner->Selectable());
 494       if (anIO != anAISIO) continue;
 495
 496       if (aBRepOwner->HasShape()) {
 497         const TopoDS_Shape& aShape = aBRepOwner->Shape();
 498         TopAbs_ShapeEnum aShapeType = aShape.ShapeType();
 499         if (aShapeType == TopAbs_VERTEX) {
 500           AttributePtr aPntAttr = PartSet_Tools::findAttributeBy2dPoint(theObject,
 501                                                                         aShape, theSketch);
 502           if (aPntAttr.get() != NULL)
 503             theSelectedAttributes.push_back(aPntAttr);
 504         }
 505       }
 506     }
 507   }
 508 }
 509
 510 void PartSet_SketcherMgr::getSelectionOwners(const ObjectPtr& theObject,
 511                                              const FeaturePtr& theSketch,
 512                                              ModuleBase_IWorkshop* theWorkshop,
 513                                              const std::list<AttributePtr>& theSelectedAttributes,
 514                                              SelectMgr_IndexedMapOfOwner& anOwnersToSelect)
 515 {
 516   FeaturePtr aFeature = ModelAPI_Feature::feature(theObject);
 517   if (aFeature.get() == NULL)
 518     return;
 519
 520   ModuleBase_IViewer* aViewer = theWorkshop->viewer();
 521   Handle(AIS_InteractiveContext) aContext = aViewer->AISContext();
 522   XGUI_ModuleConnector* aConnector = dynamic_cast<XGUI_ModuleConnector*>(theWorkshop);
 523   XGUI_Displayer* aDisplayer = aConnector->workshop()->displayer();
 524
 525   // TODO: check all results and IPresentable feature
 526   ResultPtr aResult = aFeature->firstResult();
 527
 528   bool isVisibleSketch = aDisplayer->isVisible(aResult);
 529   AISObjectPtr aAISObj = aDisplayer->getAISObject(aResult);
 530
 531   if (aAISObj.get() != NULL) {
 532     Handle(AIS_InteractiveObject) anAISIO = aAISObj->impl<Handle(AIS_InteractiveObject)>();
 533
 534     SelectMgr_IndexedMapOfOwner aSelectedOwners;
 535
 536     aConnector->workshop()->selector()->selection()->entityOwners(anAISIO, aSelectedOwners);
 537     for  ( Standard_Integer i = 1, n = aSelectedOwners.Extent(); i <= n; i++ ) {
 538       Handle(StdSelect_BRepOwner) anOwner = Handle(StdSelect_BRepOwner)::DownCast(aSelectedOwners(i));
 539       if ( anOwner.IsNull() || !anOwner->HasShape() )
 540         continue;
 541       const TopoDS_Shape& aShape = anOwner->Shape();
 542       TopAbs_ShapeEnum aShapeType = aShape.ShapeType();
 543       if (aShapeType == TopAbs_VERTEX) {
 544         AttributePtr aPntAttr = PartSet_Tools::findAttributeBy2dPoint(aFeature, aShape, theSketch);
 545         if (aPntAttr.get() != NULL) {
 546           std::list<AttributePtr>::const_iterator anIt = theSelectedAttributes.begin(),
 547                                                   aLast = theSelectedAttributes.end();
 548           for (; anIt != aLast; anIt++) {
 549             AttributePtr anAttrIt = *anIt;
 550             if (anAttrIt.get() == aPntAttr.get()) {
 551               anOwnersToSelect.Add(anOwner);
 552             }
 553           }
 554         }
 555       }
 556     }
 557   }
 558 }