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     mySketchMgr->stopSketch(theOperation);
 205   }
 206   else if (PartSet_SketcherMgr::isNestedSketchOperation(theOperation)) {
 207     mySketchMgr->stopNestedSketch(theOperation);
 208   }
 209   myWorkshop->viewer()->removeSelectionFilter(myDocumentShapeFilter);
 210 }
 211
 212 bool PartSet_Module::canDisplayObject(const ObjectPtr& theObject) const
 213 {
 214   bool aCanDisplay = false;
 215   if (!mySketchMgr->canDisplayObject(theObject))
 216     return aCanDisplay;
 217   CompositeFeaturePtr aSketchFeature = mySketchMgr->activeSketch();
 218   if (aSketchFeature.get() != NULL) {
 219     FeaturePtr aFeature = ModelAPI_Feature::feature(theObject);
 220
 221     // MPV: the second and third conditions to avoid crash on exit for application
 222     if (aFeature.get() != NULL && aFeature->data().get() && aFeature->data()->isValid()) {
 223       if (aFeature == aSketchFeature) {
 224         aCanDisplay = false;
 225       }
 226       else if (aSketchFeature.get() && aSketchFeature->data().get() &&
 227                aSketchFeature->data()->isValid()) {
 228         for (int i = 0; i < aSketchFeature->numberOfSubs() && !aCanDisplay; i++) {
 229           FeaturePtr aSubFeature = aSketchFeature->subFeature(i);
 230           std::list<ResultPtr> aResults = aSubFeature->results();
 231           std::list<ResultPtr>::const_iterator aIt;
 232           for (aIt = aResults.begin(); aIt != aResults.end() && !aCanDisplay; ++aIt) {
 233             if (theObject == (*aIt))
 234               aCanDisplay = true;
 235           }
 236           if (aSubFeature == theObject)
 237             aCanDisplay = true;
 238         }
 239       }
 240     }
 241   }
 242   else {
 243     aCanDisplay = ModuleBase_IModule::canDisplayObject(theObject);
 244   }
 245   return aCanDisplay;
 246 }
 247
 248 void PartSet_Module::addViewerItems(QMenu* theMenu) const
 249 {
 250   if (!PartSet_SketcherMgr::isSketchOperation(myWorkshop->currentOperation()) &&
 251       !isSketchFeatureOperationActive())
 252     return;
 253   ModuleBase_ISelection* aSelection = myWorkshop->selection();
 254   QObjectPtrList aObjects = aSelection->selectedPresentations();
 255   if (aObjects.size() > 0) {
 256     bool hasFeature = false;
 257     foreach(ObjectPtr aObject, aObjects)
 258     {
 259       FeaturePtr aFeature = ModelAPI_Feature::feature(aObject);
 260       if (aFeature.get() != NULL) {
 261         hasFeature = true;
 262       }
 263     }
 264     if (hasFeature)
 265       theMenu->addAction(action("DELETE_PARTSET_CMD"));
 266   }
 267 }
 268
 269 void PartSet_Module::propertyPanelDefined(ModuleBase_Operation* theOperation)
 270 {
 271   ModuleBase_IPropertyPanel* aPanel = theOperation->propertyPanel();
 272   if (PartSet_SketcherMgr::isSketchOperation(theOperation) &&  (theOperation->isEditOperation())) {
 273     // we have to manually activate the sketch label in edit mode
 274       aPanel->activateWidget(aPanel->modelWidgets().first());
 275       return;
 276   }
 277
 278   // Restart last operation type
 279   if ((theOperation->id() == myLastOperationId) && myLastFeature) {
 280     ModuleBase_ModelWidget* aWgt = aPanel->activeWidget();
 281     if (theOperation->id().toStdString() == SketchPlugin_Line::ID()) {
 282       // Initialise new line with first point equal to end of previous
 283       PartSet_WidgetPoint2D* aPnt2dWgt = dynamic_cast<PartSet_WidgetPoint2D*>(aWgt);
 284       if (aPnt2dWgt) {
 285         std::shared_ptr<ModelAPI_Data> aData = myLastFeature->data();
 286         std::shared_ptr<GeomDataAPI_Point2D> aPoint =
 287           std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aData->attribute(SketchPlugin_Line::END_ID()));
 288         if (aPoint) {
 289           aPnt2dWgt->setPoint(aPoint->x(), aPoint->y());
 290           PartSet_Tools::setConstraints(mySketchMgr->activeSketch(), theOperation->feature(),
 291             aWgt->attributeID(), aPoint->x(), aPoint->y());
 292           aPanel->activateNextWidget(aPnt2dWgt);
 293         }
 294       }
 295     }
 296   } else {
 297     // Start editing constraint
 298     if (theOperation->isEditOperation()) {
 299       // TODO: #391 - to be removed
 300       std::string aId = theOperation->id().toStdString();
 301       if (PartSet_SketcherMgr::isNestedSketchOperation(theOperation) &&
 302           PartSet_SketcherMgr::isDistanceOperation(theOperation)) {
 303         // Find and activate widget for management of point for dimension line position
 304         QList<ModuleBase_ModelWidget*> aWidgets = aPanel->modelWidgets();
 305         foreach (ModuleBase_ModelWidget* aWgt, aWidgets) {
 306           PartSet_WidgetPoint2D* aPntWgt = dynamic_cast<PartSet_WidgetPoint2D*>(aWgt);
 307           if (aPntWgt) {
 308             aPanel->activateWidget(aPntWgt);
 309             return;
 310           }
 311         }
 312       }
 313     }
 314   }
 315 }
 316
 317
 318 void PartSet_Module::onSelectionChanged()
 319 {
 320   ModuleBase_Operation* aOperation = myWorkshop->currentOperation();
 321   if (!aOperation)
 322     return;
 323
 324   bool isSketcherOp = false;
 325   // An edit operation is enable only if the current opeation is the sketch operation
 326   if (mySketchMgr->activeSketch()) {
 327     if (PartSet_Tools::sketchPlane(mySketchMgr->activeSketch()))
 328       isSketcherOp = PartSet_SketcherMgr::isSketchOperation(aOperation);
 329   }
 330   if (isSketcherOp) {
 331     // Editing of constraints can be done on selection
 332     ModuleBase_ISelection* aSelect = myWorkshop->selection();
 333     QList<ModuleBase_ViewerPrs> aSelected = aSelect->getSelected();
 334     if (aSelected.size() == 1) {
 335       ModuleBase_ViewerPrs aPrs = aSelected.first();
 336       ObjectPtr aObject = aPrs.object();
 337       FeaturePtr aFeature = ModelAPI_Feature::feature(aObject);
 338       if (aFeature) {
 339         std::string aId = aFeature->getKind();
 340         if ((aId == SketchPlugin_ConstraintRadius::ID()) ||
 341             (aId == SketchPlugin_ConstraintLength::ID()) ||
 342             (aId == SketchPlugin_ConstraintDistance::ID())) {
 343           editFeature(aFeature);
 344         }
 345       }
 346     }
 347   }
 348 }
 349
 350 void PartSet_Module::onKeyRelease(ModuleBase_IViewWindow* theWnd, QKeyEvent* theEvent)
 351 {
 352   XGUI_ModuleConnector* aConnector = dynamic_cast<XGUI_ModuleConnector*>(workshop());
 353   XGUI_OperationMgr* anOpMgr = aConnector->workshop()->operationMgr();
 354   anOpMgr->onKeyReleased(theEvent);
 355 }
 356
 357 void PartSet_Module::onEnterReleased()
 358 {
 359   myRestartingMode = RM_EmptyFeatureUsed;
 360 }
 361
 362 void PartSet_Module::onOperationActivatedByPreselection()
 363 {
 364   ModuleBase_Operation* aOperation = myWorkshop->currentOperation();
 365   if(aOperation && isSketchFeatureOperationActive()) {
 366     // Set final definitions if they are necessary
 367     //propertyPanelDefined(aOperation);
 368
 369     /// Commit sketcher operations automatically
 370     aOperation->commit();
 371   }
 372 }
 373
 374 void PartSet_Module::onNoMoreWidgets()
 375 {
 376   if (isSketchFeatureOperationActive()) {
 377     ModuleBase_Operation* aOperation = myWorkshop->currentOperation();
 378     if (aOperation) {
 379       if (myRestartingMode != RM_Forbided)
 380         myRestartingMode = RM_LastFeatureUsed;
 381       aOperation->commit();
 382     }
 383   }
 384 }
 385
 386 void PartSet_Module::onVertexSelected()
 387 {
 388   ModuleBase_Operation* aOperation = myWorkshop->currentOperation();
 389   if (aOperation->id().toStdString() == SketchPlugin_Line::ID()) {
 390     /// If last line finished on vertex the lines creation sequence has to be break
 391     ModuleBase_IPropertyPanel* aPanel = aOperation->propertyPanel();
 392     const QList<ModuleBase_ModelWidget*>& aWidgets = aPanel->modelWidgets();
 393     if (aWidgets.last() == aPanel->activeWidget()) {
 394       myRestartingMode = RM_Forbided;
 395     }
 396   }
 397 }
 398
 399 QWidget* PartSet_Module::createWidgetByType(const std::string& theType, QWidget* theParent,
 400                                             Config_WidgetAPI* theWidgetApi, std::string theParentId,
 401                                             QList<ModuleBase_ModelWidget*>& theModelWidgets)
 402 {
 403   XGUI_ModuleConnector* aConnector = dynamic_cast<XGUI_ModuleConnector*>(workshop());
 404   XGUI_Workshop* aWorkshop = aConnector->workshop();
 405   if (theType == "sketch-start-label") {
 406     PartSet_WidgetSketchLabel* aWgt = new PartSet_WidgetSketchLabel(theParent, theWidgetApi, theParentId);
 407     aWgt->setWorkshop(aWorkshop);
 408     connect(aWgt, SIGNAL(planeSelected(const std::shared_ptr<GeomAPI_Pln>&)),
 409       mySketchMgr, SLOT(onPlaneSelected(const std::shared_ptr<GeomAPI_Pln>&)));
 410     theModelWidgets.append(aWgt);
 411     return aWgt->getControl();
 412
 413   } else if (theType == "sketch-2dpoint_selector") {
 414     PartSet_WidgetPoint2D* aWgt = new PartSet_WidgetPoint2D(theParent, theWidgetApi, theParentId);
 415     aWgt->setWorkshop(aWorkshop);
 416     aWgt->setSketch(mySketchMgr->activeSketch());
 417
 418     connect(aWgt, SIGNAL(vertexSelected()), this, SLOT(onVertexSelected()));
 419
 420     theModelWidgets.append(aWgt);
 421     return aWgt->getControl();
 422
 423   } if (theType == "point2ddistance") {
 424     PartSet_WidgetPoint2dDistance* aWgt = new PartSet_WidgetPoint2dDistance(theParent, theWidgetApi, theParentId);
 425     aWgt->setWorkshop(aWorkshop);
 426     aWgt->setSketch(mySketchMgr->activeSketch());
 427
 428     theModelWidgets.append(aWgt);
 429     return aWgt->getControl();
 430
 431   } if (theType == "sketch_shape_selector") {
 432     PartSet_WidgetShapeSelector* aWgt =
 433       new PartSet_WidgetShapeSelector(theParent, workshop(), theWidgetApi, theParentId);
 434     aWgt->setSketcher(mySketchMgr->activeSketch());
 435
 436     theModelWidgets.append(aWgt);
 437     return aWgt->getControl();
 438
 439   } if (theType == "sketch_constraint_shape_selector") {
 440     PartSet_WidgetConstraintShapeSelector* aWgt =
 441       new PartSet_WidgetConstraintShapeSelector(theParent, workshop(), theWidgetApi, theParentId);
 442     aWgt->setSketcher(mySketchMgr->activeSketch());
 443
 444     theModelWidgets.append(aWgt);
 445     return aWgt->getControl();
 446
 447   } else
 448     return 0;
 449 }
 450
 451 bool PartSet_Module::isSketchFeatureOperationActive() const
 452 {
 453   bool isCurrentSketchOp = false;
 454   ModuleBase_Operation* aOperation = myWorkshop->currentOperation();
 455   if (aOperation) {
 456     FeaturePtr aFeature = aOperation->feature();
 457     std::shared_ptr<SketchPlugin_Feature> aSPFeature =
 458               std::dynamic_pointer_cast<SketchPlugin_Feature>(aFeature);
 459     isCurrentSketchOp = aSPFeature.get() != NULL;
 460   }
 461   return isCurrentSketchOp;
 462 }
 463
 464 void PartSet_Module::createActions()
 465 {
 466   QAction* aAction = new QAction(QIcon(":pictures/delete.png"), tr("Delete"), this);
 467   addAction("DELETE_PARTSET_CMD", aAction);
 468 }
 469
 470 QAction* PartSet_Module::action(const QString& theId) const
 471 {
 472   if (myActions.contains(theId))
 473     return myActions[theId];
 474   return 0;
 475 }
 476
 477 void PartSet_Module::addAction(const QString& theId, QAction* theAction)
 478 {
 479   if (myActions.contains(theId))
 480     qCritical("A command with Id = '%s' already defined!", qPrintable(theId));
 481   theAction->setData(theId);
 482   connect(theAction, SIGNAL(triggered(bool)), this, SLOT(onAction(bool)));
 483   myActions[theId] = theAction;
 484 }
 485
 486 void PartSet_Module::onAction(bool isChecked)
 487 {
 488   QAction* aAction = static_cast<QAction*>(sender());
 489   QString anId = aAction->data().toString();
 490
 491   if (anId == "DELETE_PARTSET_CMD") {
 492     deleteObjects();
 493   }
 494 }
 495
 496 void PartSet_Module::deleteObjects()
 497 {
 498   bool isSketchOp = PartSet_SketcherMgr::isSketchOperation(myWorkshop->currentOperation());
 499   if (!isSketchOp && !isSketchFeatureOperationActive())
 500     return;
 501
 502   XGUI_ModuleConnector* aConnector = dynamic_cast<XGUI_ModuleConnector*>(workshop());
 503   XGUI_Workshop* aWorkshop = aConnector->workshop();
 504
 505   XGUI_OperationMgr* anOpMgr = aWorkshop->operationMgr();
 506   if (!isSketchOp && anOpMgr->canStopOperation()) {
 507     ModuleBase_Operation* aCurrentOp = anOpMgr->currentOperation();
 508     if (aCurrentOp) {
 509       aCurrentOp->abort();
 510     }
 511   }
 512   // sketch feature should be skipped, only sub-features can be removed
 513   // when sketch operation is active
 514   CompositeFeaturePtr aSketch = mySketchMgr->activeSketch();
 515
 516   ModuleBase_ISelection* aSel = aConnector->selection();
 517   QObjectPtrList aSelectedObj = aSel->selectedPresentations();
 518
 519   std::set<FeaturePtr> aRefFeatures;
 520   foreach (ObjectPtr aObj, aSelectedObj)
 521   {
 522     //ResultPartPtr aPart = std::dynamic_pointer_cast<ModelAPI_ResultPart>(aObj);
 523     //if (aPart) {
 524       // TODO: check for what there is this condition. It is placed here historicaly because
 525       // ther is this condition during remove features.
 526     //} else {
 527     FeaturePtr aFeature = ModelAPI_Feature::feature(aObj);
 528     if (aFeature.get() != NULL) {
 529       aObj->document()->refsToFeature(aFeature, aRefFeatures, false);
 530     }
 531     //}
 532   }
 533
 534   if (!aRefFeatures.empty()) {
 535     QStringList aRefNames;
 536     std::set<FeaturePtr>::const_iterator anIt = aRefFeatures.begin(),
 537                                          aLast = aRefFeatures.end();
 538     for (; anIt != aLast; anIt++) {
 539       FeaturePtr aFeature = (*anIt);
 540       if (aFeature == aSketch)
 541         continue;
 542       aRefNames.append((*anIt)->name().c_str());
 543     }
 544     if (!aRefNames.empty()) {
 545       QString aNames = aRefNames.join(", ");
 546
 547       QMainWindow* aDesktop = aWorkshop->desktop();
 548       QMessageBox::StandardButton aRes = QMessageBox::warning(
 549           aDesktop, tr("Delete features"),
 550           QString(tr("Selected features are used in the following features: %1.\
 551   These features will be deleted also. Would you like to continue?")).arg(aNames),
 552           QMessageBox::No | QMessageBox::Yes, QMessageBox::No);
 553       if (aRes != QMessageBox::Yes)
 554         return;
 555     }
 556   }
 557
 558   SessionPtr aMgr = ModelAPI_Session::get();
 559   aMgr->startOperation("DeletePartSet");
 560   std::set<FeaturePtr>::const_iterator anIt = aRefFeatures.begin(),
 561                                        aLast = aRefFeatures.end();
 562   for (; anIt != aLast; anIt++) {
 563     FeaturePtr aRefFeature = (*anIt);
 564     if (aRefFeature == aSketch)
 565       continue;
 566     aRefFeature->document()->removeFeature(aRefFeature);
 567   }
 568
 569   foreach (ObjectPtr aObj, aSelectedObj)
 570   {
 571     DocumentPtr aDoc = aObj->document();
 572     //ResultPartPtr aPart = std::dynamic_pointer_cast<ModelAPI_ResultPart>(aObj);
 573     //if (aPart) {
 574     //  if (aDoc == aMgr->activeDocument()) {
 575     //    aDoc->close();
 576     //  }
 577     //} else {
 578       //FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(aObj);
 579     FeaturePtr aFeature = ModelAPI_Feature::feature(aObj);
 580     if (aFeature.get() != NULL) {
 581       aDoc->removeFeature(aFeature);
 582     }
 583     //}
 584   }
 585   aWorkshop->displayer()->updateViewer();
 586   //myDisplayer->updateViewer();
 587   aMgr->finishOperation();
 588 }