src/PartSet/PartSet_Module.cpp

   1 // Copyright (C) 2014-20xx CEA/DEN, EDF R&D
   2
   3 #include "PartSet_Module.h"
   4 #include <PartSet_WidgetSketchLabel.h>
   5 #include <PartSet_Validators.h>
   6 #include <PartSet_Tools.h>
   7 #include <PartSet_WidgetPoint2d.h>
   8 #include <PartSet_WidgetPoint2dDistance.h>
   9 #include <PartSet_WidgetShapeSelector.h>
  10 #include <PartSet_SketcherMgr.h>
  11
  12 #include <ModuleBase_Operation.h>
  13 #include <ModuleBase_IViewer.h>
  14 #include <ModuleBase_IViewWindow.h>
  15 #include <ModuleBase_IPropertyPanel.h>
  16 #include <ModuleBase_WidgetEditor.h>
  17 #include <ModuleBase_FilterFactory.h>
  18 #include <ModuleBase_FilterLinearEdge.h>
  19 #include <ModuleBase_FilterFace.h>
  20 #include <ModuleBase_FilterMulti.h>
  21 #include <ModuleBase_FilterCustom.h>
  22 #include <ModuleBase_FilterNoConsructionSubShapes.h>
  23
  24 #include <ModelAPI_Object.h>
  25 #include <ModelAPI_Events.h>
  26 #include <ModelAPI_Validator.h>
  27 #include <ModelAPI_Data.h>
  28 #include <ModelAPI_Session.h>
  29 #include <ModelAPI_ShapeValidator.h>
  30
  31 #include <GeomDataAPI_Point2D.h>
  32 #include <GeomDataAPI_Point.h>
  33 #include <GeomDataAPI_Dir.h>
  34
  35 #include <XGUI_Displayer.h>
  36 #include <XGUI_Workshop.h>
  37 #include <XGUI_OperationMgr.h>
  38 #include <XGUI_PropertyPanel.h>
  39 #include <XGUI_ModuleConnector.h>
  40 #include <XGUI_Tools.h>
  41
  42 #include <SketchPlugin_Feature.h>
  43 #include <SketchPlugin_Sketch.h>
  44 #include <SketchPlugin_Line.h>
  45 //#include <SketchPlugin_Arc.h>
  46 //#include <SketchPlugin_Circle.h>
  47 #include <SketchPlugin_ConstraintLength.h>
  48 #include <SketchPlugin_ConstraintDistance.h>
  49 #include <SketchPlugin_ConstraintParallel.h>
  50 #include <SketchPlugin_ConstraintPerpendicular.h>
  51 #include <SketchPlugin_ConstraintRadius.h>
  52 //#include <SketchPlugin_ConstraintRigid.h>
  53
  54 #include <Events_Loop.h>
  55 #include <Config_PropManager.h>
  56
  57 #include <StdSelect_TypeOfFace.hxx>
  58 #include <TopoDS_Vertex.hxx>
  59 #include <TopoDS.hxx>
  60 #include <TopoDS_Shape.hxx>
  61 #include <BRep_Tool.hxx>
  62
  63 #include <QObject>
  64 #include <QMouseEvent>
  65 #include <QString>
  66 #include <QTimer>
  67 #include <QApplication>
  68 #include <QMessageBox>
  69 #include <QMainWindow>
  70
  71 #include <GeomAlgoAPI_FaceBuilder.h>
  72 #include <GeomDataAPI_Dir.h>
  73
  74 #ifdef _DEBUG
  75 #include <QDebug>
  76 #endif
  77
  78 /*!Create and return new instance of XGUI_Module*/
  79 extern "C" PARTSET_EXPORT ModuleBase_IModule* createModule(ModuleBase_IWorkshop* theWshop)
  80 {
  81   return new PartSet_Module(theWshop);
  82 }
  83
  84 PartSet_Module::PartSet_Module(ModuleBase_IWorkshop* theWshop)
  85   : ModuleBase_IModule(theWshop),
  86   myRestartingMode(RM_None)
  87 {
  88   //myWorkshop = dynamic_cast<XGUI_Workshop*>(theWshop);
  89   mySketchMgr = new PartSet_SketcherMgr(this);
  90
  91   XGUI_ModuleConnector* aConnector = dynamic_cast<XGUI_ModuleConnector*>(theWshop);
  92   XGUI_Workshop* aWorkshop = aConnector->workshop();
  93
  94   XGUI_OperationMgr* anOpMgr = aWorkshop->operationMgr();
  95   connect(anOpMgr, SIGNAL(keyEnterReleased()), this, SLOT(onEnterReleased()));
  96   connect(anOpMgr, SIGNAL(operationActivatedByPreselection()),
  97           this, SLOT(onOperationActivatedByPreselection()));
  98
  99   ModuleBase_IViewer* aViewer = theWshop->viewer();
 100   connect(aViewer, SIGNAL(keyRelease(ModuleBase_IViewWindow*, QKeyEvent*)),
 101           this, SLOT(onKeyRelease(ModuleBase_IViewWindow*, QKeyEvent*)));
 102
 103   createActions();
 104 }
 105
 106 PartSet_Module::~PartSet_Module()
 107 {
 108   if (!myDocumentShapeFilter.IsNull())
 109     myDocumentShapeFilter.Nullify();
 110 }
 111
 112 void PartSet_Module::registerValidators()
 113 {
 114   //Registering of validators
 115   SessionPtr aMgr = ModelAPI_Session::get();
 116   ModelAPI_ValidatorsFactory* aFactory = aMgr->validators();
 117   aFactory->registerValidator("PartSet_DistanceValidator", new PartSet_DistanceValidator);
 118   aFactory->registerValidator("PartSet_LengthValidator", new PartSet_LengthValidator);
 119   aFactory->registerValidator("PartSet_PerpendicularValidator", new PartSet_PerpendicularValidator);
 120   aFactory->registerValidator("PartSet_ParallelValidator", new PartSet_ParallelValidator);
 121   aFactory->registerValidator("PartSet_RadiusValidator", new PartSet_RadiusValidator);
 122   aFactory->registerValidator("PartSet_RigidValidator", new PartSet_RigidValidator);
 123   aFactory->registerValidator("PartSet_DifferentObjects", new PartSet_DifferentObjectsValidator);
 124   aFactory->registerValidator("PartSet_DifferentShapes", new ModelAPI_ShapeValidator);
 125   aFactory->registerValidator("PartSet_SketchValidator", new PartSet_SketchValidator);
 126 }
 127
 128 void PartSet_Module::registerFilters()
 129 {
 130   //Registering of selection filters
 131   XGUI_ModuleConnector* aConnector = dynamic_cast<XGUI_ModuleConnector*>(workshop());
 132   ModuleBase_FilterFactory* aFactory = aConnector->selectionFilters();
 133
 134   aFactory->registerFilter("EdgeFilter", new ModuleBase_FilterLinearEdge);
 135   aFactory->registerFilter("FaceFilter", new ModuleBase_FilterFace);
 136   aFactory->registerFilter("MultiFilter", new ModuleBase_FilterMulti);
 137   Handle(SelectMgr_Filter) aSelectFilter = new ModuleBase_FilterNoConsructionSubShapes(workshop());
 138   aFactory->registerFilter("NoConstructionSubShapesFilter",
 139             new ModuleBase_FilterCustom(aSelectFilter));
 140 }
 141
 142 void PartSet_Module::registerProperties()
 143 {
 144   Config_PropManager::registerProp("Sketch planes", "planes_size", "Size", Config_Prop::Double,
 145                                    PLANE_SIZE);
 146   Config_PropManager::registerProp("Sketch planes", "planes_thickness", "Thickness",
 147                                    Config_Prop::Integer, SKETCH_WIDTH);
 148 }
 149
 150 void PartSet_Module::operationCommitted(ModuleBase_Operation* theOperation)
 151 {
 152   if (theOperation->isEditOperation())
 153     return;
 154   // the selection is cleared after commit the create operation
 155   // in order to do not use the same selected objects in the restarted operation
 156   // for common behaviour, the selection is cleared even if the operation is not restarted
 157   Handle(AIS_InteractiveContext) aContext = myWorkshop->viewer()->AISContext();
 158   if (!aContext.IsNull())
 159     aContext->ClearSelected();
 160
 161   /// Restart sketcher operations automatically
 162   FeaturePtr aFeature = theOperation->feature();
 163   std::shared_ptr<SketchPlugin_Feature> aSPFeature =
 164             std::dynamic_pointer_cast<SketchPlugin_Feature>(aFeature);
 165   if (aSPFeature && (myRestartingMode == RM_LastFeatureUsed ||
 166                      myRestartingMode == RM_EmptyFeatureUsed)) {
 167     myLastOperationId = theOperation->id();
 168     myLastFeature = myRestartingMode == RM_LastFeatureUsed ? theOperation->feature() : FeaturePtr();
 169
 170     launchOperation(myLastOperationId);
 171   }
 172   breakOperationSequence();
 173 }
 174
 175 void PartSet_Module::breakOperationSequence()
 176 {
 177   myLastOperationId = "";
 178   myLastFeature = FeaturePtr();
 179   myRestartingMode = RM_None;
 180 }
 181
 182 void PartSet_Module::operationAborted(ModuleBase_Operation* theOperation)
 183 {
 184   breakOperationSequence();
 185 }
 186
 187 void PartSet_Module::operationStarted(ModuleBase_Operation* theOperation)
 188 {
 189   if (PartSet_SketcherMgr::isSketchOperation(theOperation)) {
 190     mySketchMgr->startSketch(theOperation);
 191   }
 192   else if (PartSet_SketcherMgr::isNestedSketchOperation(theOperation)) {
 193     mySketchMgr->startNestedSketch(theOperation);
 194   }
 195
 196   if (myDocumentShapeFilter.IsNull())
 197     myDocumentShapeFilter = new PartSet_GlobalFilter(myWorkshop);
 198   myWorkshop->viewer()->addSelectionFilter(myDocumentShapeFilter);
 199 }
 200
 201 void PartSet_Module::operationStopped(ModuleBase_Operation* theOperation)
 202 {
 203   if (PartSet_SketcherMgr::isSketchOperation(theOperation) ||
 204       PartSet_SketcherMgr::isNestedSketchOperation(theOperation)) {
 205     mySketchMgr->stopSketch(theOperation);
 206   }
 207   else if (PartSet_SketcherMgr::isNestedSketchOperation(theOperation)) {
 208     mySketchMgr->stopNestedSketch(theOperation);
 209   }
 210   myWorkshop->viewer()->removeSelectionFilter(myDocumentShapeFilter);
 211 }
 212
 213 bool PartSet_Module::canDisplayObject(const ObjectPtr& theObject) const
 214 {
 215   bool aCanDisplay = false;
 216   if (!mySketchMgr->canDisplayObject(theObject))
 217     return aCanDisplay;
 218   CompositeFeaturePtr aSketchFeature = mySketchMgr->activeSketch();
 219   if (aSketchFeature.get() != NULL) {
 220     FeaturePtr aFeature = ModelAPI_Feature::feature(theObject);
 221
 222     // MPV: the second and third conditions to avoid crash on exit for application
 223     if (aFeature.get() != NULL && aFeature->data().get() && aFeature->data()->isValid()) {
 224       if (aFeature == aSketchFeature) {
 225         aCanDisplay = false;
 226       }
 227       else if (aSketchFeature.get() && aSketchFeature->data().get() &&
 228                aSketchFeature->data()->isValid()) {
 229         for (int i = 0; i < aSketchFeature->numberOfSubs() && !aCanDisplay; i++) {
 230           FeaturePtr aSubFeature = aSketchFeature->subFeature(i);
 231           std::list<ResultPtr> aResults = aSubFeature->results();
 232           std::list<ResultPtr>::const_iterator aIt;
 233           for (aIt = aResults.begin(); aIt != aResults.end() && !aCanDisplay; ++aIt) {
 234             if (theObject == (*aIt))
 235               aCanDisplay = true;
 236           }
 237           if (aSubFeature == theObject)
 238             aCanDisplay = true;
 239         }
 240       }
 241     }
 242   }
 243   else {
 244     aCanDisplay = ModuleBase_IModule::canDisplayObject(theObject);
 245   }
 246   return aCanDisplay;
 247 }
 248
 249 void PartSet_Module::addViewerItems(QMenu* theMenu) const
 250 {
 251   if (!PartSet_SketcherMgr::isSketchOperation(myWorkshop->currentOperation()) &&
 252       !isSketchFeatureOperationActive())
 253     return;
 254   ModuleBase_ISelection* aSelection = myWorkshop->selection();
 255   QObjectPtrList aObjects = aSelection->selectedPresentations();
 256   if (aObjects.size() > 0) {
 257     bool hasFeature = false;
 258     foreach(ObjectPtr aObject, aObjects)
 259     {
 260       FeaturePtr aFeature = ModelAPI_Feature::feature(aObject);
 261       if (aFeature.get() != NULL) {
 262         hasFeature = true;
 263       }
 264     }
 265     if (hasFeature)
 266       theMenu->addAction(action("DELETE_PARTSET_CMD"));
 267   }
 268 }
 269
 270 void PartSet_Module::propertyPanelDefined(ModuleBase_Operation* theOperation)
 271 {
 272   ModuleBase_IPropertyPanel* aPanel = theOperation->propertyPanel();
 273   if (PartSet_SketcherMgr::isSketchOperation(theOperation) &&  (theOperation->isEditOperation())) {
 274     // we have to manually activate the sketch label in edit mode
 275       aPanel->activateWidget(aPanel->modelWidgets().first());
 276       return;
 277   }
 278
 279   // Restart last operation type
 280   if ((theOperation->id() == myLastOperationId) && myLastFeature) {
 281     ModuleBase_ModelWidget* aWgt = aPanel->activeWidget();
 282     if (theOperation->id().toStdString() == SketchPlugin_Line::ID()) {
 283       // Initialise new line with first point equal to end of previous
 284       PartSet_WidgetPoint2D* aPnt2dWgt = dynamic_cast<PartSet_WidgetPoint2D*>(aWgt);
 285       if (aPnt2dWgt) {
 286         std::shared_ptr<ModelAPI_Data> aData = myLastFeature->data();
 287         std::shared_ptr<GeomDataAPI_Point2D> aPoint =
 288           std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aData->attribute(SketchPlugin_Line::END_ID()));
 289         if (aPoint) {
 290           aPnt2dWgt->setPoint(aPoint->x(), aPoint->y());
 291           PartSet_Tools::setConstraints(mySketchMgr->activeSketch(), theOperation->feature(),
 292             aWgt->attributeID(), aPoint->x(), aPoint->y());
 293           aPanel->activateNextWidget(aPnt2dWgt);
 294         }
 295       }
 296     }
 297   } else {
 298     // Start editing constraint
 299     if (theOperation->isEditOperation()) {
 300       // TODO: #391 - to be removed
 301       std::string aId = theOperation->id().toStdString();
 302       if (PartSet_SketcherMgr::isNestedSketchOperation(theOperation) &&
 303           PartSet_SketcherMgr::isDistanceOperation(theOperation)) {
 304         // Find and activate widget for management of point for dimension line position
 305         QList<ModuleBase_ModelWidget*> aWidgets = aPanel->modelWidgets();
 306         foreach (ModuleBase_ModelWidget* aWgt, aWidgets) {
 307           PartSet_WidgetPoint2D* aPntWgt = dynamic_cast<PartSet_WidgetPoint2D*>(aWgt);
 308           if (aPntWgt) {
 309             aPanel->activateWidget(aPntWgt);
 310             return;
 311           }
 312         }
 313       }
 314     }
 315   }
 316 }
 317
 318
 319 void PartSet_Module::onSelectionChanged()
 320 {
 321   ModuleBase_Operation* aOperation = myWorkshop->currentOperation();
 322   if (!aOperation)
 323     return;
 324
 325   bool isSketcherOp = false;
 326   // An edit operation is enable only if the current opeation is the sketch operation
 327   if (mySketchMgr->activeSketch()) {
 328     if (PartSet_Tools::sketchPlane(mySketchMgr->activeSketch()))
 329       isSketcherOp = PartSet_SketcherMgr::isSketchOperation(aOperation);
 330   }
 331   if (isSketcherOp) {
 332     // Editing of constraints can be done on selection
 333     ModuleBase_ISelection* aSelect = myWorkshop->selection();
 334     QList<ModuleBase_ViewerPrs> aSelected = aSelect->getSelected();
 335     if (aSelected.size() == 1) {
 336       ModuleBase_ViewerPrs aPrs = aSelected.first();
 337       ObjectPtr aObject = aPrs.object();
 338       FeaturePtr aFeature = ModelAPI_Feature::feature(aObject);
 339       if (aFeature) {
 340         std::string aId = aFeature->getKind();
 341         if ((aId == SketchPlugin_ConstraintRadius::ID()) ||
 342             (aId == SketchPlugin_ConstraintLength::ID()) ||
 343             (aId == SketchPlugin_ConstraintDistance::ID())) {
 344           editFeature(aFeature);
 345         }
 346       }
 347     }
 348   }
 349 }
 350
 351 void PartSet_Module::onKeyRelease(ModuleBase_IViewWindow* theWnd, QKeyEvent* theEvent)
 352 {
 353   XGUI_ModuleConnector* aConnector = dynamic_cast<XGUI_ModuleConnector*>(workshop());
 354   XGUI_OperationMgr* anOpMgr = aConnector->workshop()->operationMgr();
 355   anOpMgr->onKeyReleased(theEvent);
 356 }
 357
 358 void PartSet_Module::onEnterReleased()
 359 {
 360   myRestartingMode = RM_EmptyFeatureUsed;
 361 }
 362
 363 void PartSet_Module::onOperationActivatedByPreselection()
 364 {
 365   ModuleBase_Operation* aOperation = myWorkshop->currentOperation();
 366   if(aOperation && isSketchFeatureOperationActive()) {
 367     // Set final definitions if they are necessary
 368     //propertyPanelDefined(aOperation);
 369
 370     /// Commit sketcher operations automatically
 371     aOperation->commit();
 372   }
 373 }
 374
 375 void PartSet_Module::onNoMoreWidgets()
 376 {
 377   if (isSketchFeatureOperationActive()) {
 378     ModuleBase_Operation* aOperation = myWorkshop->currentOperation();
 379     if (aOperation) {
 380       if (myRestartingMode != RM_Forbided)
 381         myRestartingMode = RM_LastFeatureUsed;
 382       aOperation->commit();
 383     }
 384   }
 385 }
 386
 387 void PartSet_Module::onVertexSelected()
 388 {
 389   ModuleBase_Operation* aOperation = myWorkshop->currentOperation();
 390   if (aOperation->id().toStdString() == SketchPlugin_Line::ID()) {
 391     /// If last line finished on vertex the lines creation sequence has to be break
 392     ModuleBase_IPropertyPanel* aPanel = aOperation->propertyPanel();
 393     const QList<ModuleBase_ModelWidget*>& aWidgets = aPanel->modelWidgets();
 394     if (aWidgets.last() == aPanel->activeWidget()) {
 395       myRestartingMode = RM_Forbided;
 396     }
 397   }
 398 }
 399
 400 QWidget* PartSet_Module::createWidgetByType(const std::string& theType, QWidget* theParent,
 401                                             Config_WidgetAPI* theWidgetApi, std::string theParentId,
 402                                             QList<ModuleBase_ModelWidget*>& theModelWidgets)
 403 {
 404   XGUI_ModuleConnector* aConnector = dynamic_cast<XGUI_ModuleConnector*>(workshop());
 405   XGUI_Workshop* aWorkshop = aConnector->workshop();
 406   if (theType == "sketch-start-label") {
 407     PartSet_WidgetSketchLabel* aWgt = new PartSet_WidgetSketchLabel(theParent, theWidgetApi, theParentId);
 408     aWgt->setWorkshop(aWorkshop);
 409     connect(aWgt, SIGNAL(planeSelected(const std::shared_ptr<GeomAPI_Pln>&)),
 410       mySketchMgr, SLOT(onPlaneSelected(const std::shared_ptr<GeomAPI_Pln>&)));
 411     theModelWidgets.append(aWgt);
 412     return aWgt->getControl();
 413
 414   } else if (theType == "sketch-2dpoint_selector") {
 415     PartSet_WidgetPoint2D* aWgt = new PartSet_WidgetPoint2D(theParent, theWidgetApi, theParentId);
 416     aWgt->setWorkshop(aWorkshop);
 417     aWgt->setSketch(mySketchMgr->activeSketch());
 418
 419     connect(aWgt, SIGNAL(vertexSelected()), this, SLOT(onVertexSelected()));
 420
 421     theModelWidgets.append(aWgt);
 422     return aWgt->getControl();
 423
 424   } if (theType == "point2ddistance") {
 425     PartSet_WidgetPoint2dDistance* aWgt = new PartSet_WidgetPoint2dDistance(theParent, theWidgetApi, theParentId);
 426     aWgt->setWorkshop(aWorkshop);
 427     aWgt->setSketch(mySketchMgr->activeSketch());
 428
 429     theModelWidgets.append(aWgt);
 430     return aWgt->getControl();
 431
 432   } if (theType == "sketch_shape_selector") {
 433     PartSet_WidgetShapeSelector* aWgt =
 434       new PartSet_WidgetShapeSelector(theParent, workshop(), theWidgetApi, theParentId);
 435     aWgt->setSketcher(mySketchMgr->activeSketch());
 436
 437     theModelWidgets.append(aWgt);
 438     return aWgt->getControl();
 439
 440   } if (theType == "sketch_constraint_shape_selector") {
 441     PartSet_WidgetConstraintShapeSelector* aWgt =
 442       new PartSet_WidgetConstraintShapeSelector(theParent, workshop(), theWidgetApi, theParentId);
 443     aWgt->setSketcher(mySketchMgr->activeSketch());
 444
 445     theModelWidgets.append(aWgt);
 446     return aWgt->getControl();
 447
 448   } else
 449     return 0;
 450 }
 451
 452 bool PartSet_Module::isSketchFeatureOperationActive() const
 453 {
 454   bool isCurrentSketchOp = false;
 455   ModuleBase_Operation* aOperation = myWorkshop->currentOperation();
 456   if (aOperation) {
 457     FeaturePtr aFeature = aOperation->feature();
 458     std::shared_ptr<SketchPlugin_Feature> aSPFeature =
 459               std::dynamic_pointer_cast<SketchPlugin_Feature>(aFeature);
 460     isCurrentSketchOp = aSPFeature.get() != NULL;
 461   }
 462   return isCurrentSketchOp;
 463 }
 464
 465 void PartSet_Module::createActions()
 466 {
 467   QAction* aAction = new QAction(QIcon(":pictures/delete.png"), tr("Delete"), this);
 468   addAction("DELETE_PARTSET_CMD", aAction);
 469 }
 470
 471 QAction* PartSet_Module::action(const QString& theId) const
 472 {
 473   if (myActions.contains(theId))
 474     return myActions[theId];
 475   return 0;
 476 }
 477
 478 void PartSet_Module::addAction(const QString& theId, QAction* theAction)
 479 {
 480   if (myActions.contains(theId))
 481     qCritical("A command with Id = '%s' already defined!", qPrintable(theId));
 482   theAction->setData(theId);
 483   connect(theAction, SIGNAL(triggered(bool)), this, SLOT(onAction(bool)));
 484   myActions[theId] = theAction;
 485 }
 486
 487 void PartSet_Module::onAction(bool isChecked)
 488 {
 489   QAction* aAction = static_cast<QAction*>(sender());
 490   QString anId = aAction->data().toString();
 491
 492   if (anId == "DELETE_PARTSET_CMD") {
 493     deleteObjects();
 494   }
 495 }
 496
 497 void PartSet_Module::deleteObjects()
 498 {
 499   bool isSketchOp = PartSet_SketcherMgr::isSketchOperation(myWorkshop->currentOperation());
 500   if (!isSketchOp && !isSketchFeatureOperationActive())
 501     return;
 502
 503   XGUI_ModuleConnector* aConnector = dynamic_cast<XGUI_ModuleConnector*>(workshop());
 504   XGUI_Workshop* aWorkshop = aConnector->workshop();
 505
 506   XGUI_OperationMgr* anOpMgr = aWorkshop->operationMgr();
 507   if (!isSketchOp && anOpMgr->canStopOperation()) {
 508     ModuleBase_Operation* aCurrentOp = anOpMgr->currentOperation();
 509     if (aCurrentOp) {
 510       aCurrentOp->abort();
 511     }
 512   }
 513   // sketch feature should be skipped, only sub-features can be removed
 514   // when sketch operation is active
 515   CompositeFeaturePtr aSketch = mySketchMgr->activeSketch();
 516
 517   ModuleBase_ISelection* aSel = aConnector->selection();
 518   QObjectPtrList aSelectedObj = aSel->selectedPresentations();
 519
 520   std::set<FeaturePtr> aRefFeatures;
 521   foreach (ObjectPtr aObj, aSelectedObj)
 522   {
 523     //ResultPartPtr aPart = std::dynamic_pointer_cast<ModelAPI_ResultPart>(aObj);
 524     //if (aPart) {
 525       // TODO: check for what there is this condition. It is placed here historicaly because
 526       // ther is this condition during remove features.
 527     //} else {
 528     FeaturePtr aFeature = ModelAPI_Feature::feature(aObj);
 529     if (aFeature.get() != NULL) {
 530       aObj->document()->refsToFeature(aFeature, aRefFeatures, false);
 531     }
 532     //}
 533   }
 534
 535   if (!aRefFeatures.empty()) {
 536     QStringList aRefNames;
 537     std::set<FeaturePtr>::const_iterator anIt = aRefFeatures.begin(),
 538                                          aLast = aRefFeatures.end();
 539     for (; anIt != aLast; anIt++) {
 540       FeaturePtr aFeature = (*anIt);
 541       if (aFeature == aSketch)
 542         continue;
 543       aRefNames.append((*anIt)->name().c_str());
 544     }
 545     if (!aRefNames.empty()) {
 546       QString aNames = aRefNames.join(", ");
 547
 548       QMainWindow* aDesktop = aWorkshop->desktop();
 549       QMessageBox::StandardButton aRes = QMessageBox::warning(
 550           aDesktop, tr("Delete features"),
 551           QString(tr("Selected features are used in the following features: %1.\
 552   These features will be deleted also. Would you like to continue?")).arg(aNames),
 553           QMessageBox::No | QMessageBox::Yes, QMessageBox::No);
 554       if (aRes != QMessageBox::Yes)
 555         return;
 556     }
 557   }
 558
 559   SessionPtr aMgr = ModelAPI_Session::get();
 560   aMgr->startOperation("DeletePartSet");
 561   std::set<FeaturePtr>::const_iterator anIt = aRefFeatures.begin(),
 562                                        aLast = aRefFeatures.end();
 563   for (; anIt != aLast; anIt++) {
 564     FeaturePtr aRefFeature = (*anIt);
 565     if (aRefFeature == aSketch)
 566       continue;
 567     aRefFeature->document()->removeFeature(aRefFeature);
 568   }
 569
 570   foreach (ObjectPtr aObj, aSelectedObj)
 571   {
 572     DocumentPtr aDoc = aObj->document();
 573     //ResultPartPtr aPart = std::dynamic_pointer_cast<ModelAPI_ResultPart>(aObj);
 574     //if (aPart) {
 575     //  if (aDoc == aMgr->activeDocument()) {
 576     //    aDoc->close();
 577     //  }
 578     //} else {
 579       //FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(aObj);
 580     FeaturePtr aFeature = ModelAPI_Feature::feature(aObj);
 581     if (aFeature.get() != NULL) {
 582       aDoc->removeFeature(aFeature);
 583     }
 584     //}
 585   }
 586   aWorkshop->displayer()->updateViewer();
 587   //myDisplayer->updateViewer();
 588   aMgr->finishOperation();
 589 }