src/PartSet/PartSet_WidgetPoint2d.cpp

   1 // Copyright (C) 2014-20xx CEA/DEN, EDF R&D
   2
   3 // File:        PartSet_WidgetPoint2D.cpp
   4 // Created:     25 Apr 2014
   5 // Author:      Natalia ERMOLAEVA
   6
   7 #include "PartSet_WidgetPoint2d.h"
   8 #include <PartSet_Tools.h>
   9 #include <PartSet_Module.h>
  10
  11 #include <ModuleBase_ParamSpinBox.h>
  12 #include <ModuleBase_Tools.h>
  13 #include <ModuleBase_IViewer.h>
  14 #include <ModuleBase_IViewWindow.h>
  15 #include <ModuleBase_ISelection.h>
  16
  17 #include <Config_Keywords.h>
  18 #include <Config_WidgetAPI.h>
  19
  20 #include <Events_Loop.h>
  21 #include <ModelAPI_Events.h>
  22
  23 #include <ModelAPI_Feature.h>
  24 #include <ModelAPI_Data.h>
  25 #include <ModelAPI_Object.h>
  26 #include <GeomDataAPI_Point2D.h>
  27 #include <GeomAPI_Pnt2d.h>
  28
  29 #include <SketchPlugin_Feature.h>
  30 #include <SketchPlugin_ConstraintCoincidence.h>
  31 #include <SketchPlugin_Line.h>
  32 #include <SketchPlugin_Arc.h>
  33 #include <SketchPlugin_Circle.h>
  34 #include <SketchPlugin_Point.h>
  35
  36 #include <QGroupBox>
  37 #include <QGridLayout>
  38 #include <QLabel>
  39 #include <QEvent>
  40 #include <QMouseEvent>
  41 #include <QApplication>
  42
  43 #include <TopoDS.hxx>
  44 #include <TopoDS_Vertex.hxx>
  45 #include <BRep_Tool.hxx>
  46
  47 #include <cfloat>
  48 #include <climits>
  49
  50 const double MaxCoordinate = 1e12;
  51
  52 static QStringList MyFeaturesForCoincedence;
  53
  54 PartSet_WidgetPoint2D::PartSet_WidgetPoint2D(QWidget* theParent,
  55                                              ModuleBase_IWorkshop* theWorkshop,
  56                                              const Config_WidgetAPI* theData,
  57                                              const std::string& theParentId)
  58  : ModuleBase_ModelWidget(theParent, theData, theParentId), myWorkshop(theWorkshop)
  59 {
  60   if (MyFeaturesForCoincedence.isEmpty()) {
  61     MyFeaturesForCoincedence << SketchPlugin_Line::ID().c_str()
  62       << SketchPlugin_Arc::ID().c_str()
  63       << SketchPlugin_Point::ID().c_str()
  64       << SketchPlugin_Circle::ID().c_str();
  65   }
  66
  67   // the control should accept the focus, so the boolen flag is corrected to be true
  68   myIsObligatory = true;
  69   //myOptionParam = theData->getProperty(PREVIOUS_FEATURE_PARAM);
  70   QString aPageName = QString::fromStdString(theData->getProperty(CONTAINER_PAGE_NAME));
  71   myGroupBox = new QGroupBox(aPageName, theParent);
  72   myGroupBox->setFlat(false);
  73
  74   QGridLayout* aGroupLay = new QGridLayout(myGroupBox);
  75   ModuleBase_Tools::adjustMargins(aGroupLay);
  76   aGroupLay->setSpacing(2);
  77   aGroupLay->setColumnStretch(1, 1);
  78   {
  79     QLabel* aLabel = new QLabel(myGroupBox);
  80     aLabel->setText(tr("X "));
  81     aGroupLay->addWidget(aLabel, 0, 0);
  82
  83     myXSpin = new ModuleBase_ParamSpinBox(myGroupBox);
  84     myXSpin->setMinimum(-DBL_MAX);
  85     myXSpin->setMaximum(DBL_MAX);
  86     myXSpin->setToolTip(tr("X"));
  87     aGroupLay->addWidget(myXSpin, 0, 1);
  88
  89     connect(myXSpin, SIGNAL(valueChanged(const QString&)), this, SIGNAL(valuesModified()));
  90   }
  91   {
  92     QLabel* aLabel = new QLabel(myGroupBox);
  93     aLabel->setText(tr("Y "));
  94     aGroupLay->addWidget(aLabel, 1, 0);
  95
  96     myYSpin = new ModuleBase_ParamSpinBox(myGroupBox);
  97     myYSpin->setMinimum(-DBL_MAX);
  98     myYSpin->setMaximum(DBL_MAX);
  99     myYSpin->setToolTip(tr("Y"));
 100     aGroupLay->addWidget(myYSpin, 1, 1);
 101
 102     connect(myYSpin, SIGNAL(valueChanged(const QString&)), this, SIGNAL(valuesModified()));
 103   }
 104   QVBoxLayout* aLayout = new QVBoxLayout(this);
 105   ModuleBase_Tools::zeroMargins(aLayout);
 106   aLayout->addWidget(myGroupBox);
 107   setLayout(aLayout);
 108 }
 109
 110 bool PartSet_WidgetPoint2D::resetCustom()
 111 {
 112   bool aDone = false;
 113   if (!isUseReset() || isComputedDefault() || myXSpin->hasVariable() || myYSpin->hasVariable()) {
 114     aDone = false;
 115   }
 116   else {
 117     bool isOk;
 118     double aDefValue = QString::fromStdString(getDefaultValue()).toDouble(&isOk);
 119     // it is important to block the spin box control in order to do not through out the
 120     // locking of the validating state.
 121     ModuleBase_Tools::setSpinValue(myXSpin, isOk ? aDefValue : 0.0);
 122     ModuleBase_Tools::setSpinValue(myYSpin, isOk ? aDefValue : 0.0);
 123     storeValueCustom();
 124     aDone = true;
 125   }
 126   return aDone;
 127 }
 128
 129 PartSet_WidgetPoint2D::~PartSet_WidgetPoint2D()
 130 {
 131 }
 132
 133 bool PartSet_WidgetPoint2D::setSelection(QList<ModuleBase_ViewerPrs>& theValues,
 134                                          const bool theToValidate)
 135 {
 136   bool isDone = false;
 137   if (theValues.empty())
 138     return isDone;
 139
 140   ModuleBase_ViewerPrs aValue = theValues.takeFirst();
 141   TopoDS_Shape aShape = aValue.shape();
 142   if (!aShape.IsNull()) {
 143     Handle(V3d_View) aView = myWorkshop->viewer()->activeView();
 144     double aX, aY;
 145     if (getPoint2d(aView, aShape, aX, aY)) {
 146       isDone = setPoint(aX, aY);
 147       PartSet_Tools::setConstraints(mySketch, feature(), attributeID(), aX, aY);
 148     }
 149   }
 150   else if (canBeActivatedByMove()) {
 151     if (feature()->getKind() == SketchPlugin_Line::ID()) {
 152       FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(aValue.object());
 153       // Initialise new line with first point equal to end of previous
 154       if (aFeature.get()) {
 155         std::shared_ptr<ModelAPI_Data> aData = aFeature->data();
 156         std::shared_ptr<GeomDataAPI_Point2D> aPoint =
 157           std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 158                                        aData->attribute(SketchPlugin_Line::END_ID()));
 159         if (aPoint) {
 160           setPoint(aPoint->x(), aPoint->y());
 161           PartSet_Tools::setConstraints(mySketch, feature(), attributeID(), aPoint->x(),
 162                                         aPoint->y());
 163           isDone = true;
 164         }
 165       }
 166     }
 167   }
 168   return isDone;
 169 }
 170
 171 void PartSet_WidgetPoint2D::selectContent()
 172 {
 173   myXSpin->selectAll();
 174 }
 175
 176 bool PartSet_WidgetPoint2D::setPoint(double theX, double theY)
 177 {
 178   if (fabs(theX) >= MaxCoordinate)
 179     return false;
 180   if (fabs(theY) >= MaxCoordinate)
 181     return false;
 182
 183   ModuleBase_Tools::setSpinValue(myXSpin, theX);
 184   ModuleBase_Tools::setSpinValue(myYSpin, theY);
 185
 186   storeValue();
 187   return true;
 188 }
 189
 190 bool PartSet_WidgetPoint2D::storeValueCustom() const
 191 {
 192   std::shared_ptr<ModelAPI_Data> aData = myFeature->data();
 193   if (!aData) // can be on abort of sketcher element
 194     return false;
 195   std::shared_ptr<GeomDataAPI_Point2D> aPoint = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 196       aData->attribute(attributeID()));
 197
 198   PartSet_WidgetPoint2D* that = (PartSet_WidgetPoint2D*) this;
 199   bool isBlocked = that->blockSignals(true);
 200   bool isImmutable = aPoint->setImmutable(true);
 201
 202   // if text is not empty then setValue will be ignored
 203   // so we should set the text at first
 204   aPoint->setText(myXSpin->hasVariable() ? myXSpin->text().toStdString() : "",
 205                   myYSpin->hasVariable() ? myYSpin->text().toStdString() : "");
 206   aPoint->setValue(!myXSpin->hasVariable() ? myXSpin->value() : aPoint->x(),
 207                    !myYSpin->hasVariable() ? myYSpin->value() : aPoint->y());
 208
 209   // after movement the solver will call the update event: optimization
 210   moveObject(myFeature);
 211   aPoint->setImmutable(isImmutable);
 212   that->blockSignals(isBlocked);
 213
 214   return true;
 215 }
 216
 217 bool PartSet_WidgetPoint2D::restoreValueCustom()
 218 {
 219   std::shared_ptr<ModelAPI_Data> aData = myFeature->data();
 220   std::shared_ptr<GeomDataAPI_Point2D> aPoint = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 221       aData->attribute(attributeID()));
 222   QString aTextX = QString::fromStdString(aPoint->textX());
 223   QString aTextY = QString::fromStdString(aPoint->textY());
 224
 225   bool isDouble = false;
 226   double aVal = 0;
 227   if (aTextX.isEmpty()) {
 228     ModuleBase_Tools::setSpinValue(myXSpin, aPoint->x());
 229   } else {
 230     aVal = aTextX.toDouble(&isDouble);
 231     if (isDouble)
 232       ModuleBase_Tools::setSpinValue(myXSpin, aVal);
 233     else
 234       ModuleBase_Tools::setSpinText(myXSpin, aTextX);
 235   }
 236   if (aTextY.isEmpty()) {
 237     ModuleBase_Tools::setSpinValue(myYSpin, aPoint->y());
 238   } else {
 239     aVal = aTextY.toDouble(&isDouble);
 240     if (isDouble)
 241       ModuleBase_Tools::setSpinValue(myYSpin, aVal);
 242     else
 243       ModuleBase_Tools::setSpinText(myYSpin, aTextY);
 244   }
 245   //if (aTextX.empty() || aTextY.empty()) {
 246   //  ModuleBase_Tools::setSpinValue(myXSpin, aPoint->x());
 247   //  ModuleBase_Tools::setSpinValue(myYSpin, aPoint->y());
 248   //} else {
 249   //  ModuleBase_Tools::setSpinText(myXSpin, QString::fromStdString(aTextX));
 250   //  ModuleBase_Tools::setSpinText(myYSpin, QString::fromStdString(aTextY));
 251   //}
 252   return true;
 253 }
 254
 255 QList<QWidget*> PartSet_WidgetPoint2D::getControls() const
 256 {
 257   QList<QWidget*> aControls;
 258   aControls.append(myXSpin);
 259   aControls.append(myYSpin);
 260   return aControls;
 261 }
 262
 263
 264 void PartSet_WidgetPoint2D::activateCustom()
 265 {
 266   ModuleBase_IViewer* aViewer = myWorkshop->viewer();
 267   connect(aViewer, SIGNAL(mouseMove(ModuleBase_IViewWindow*, QMouseEvent*)),
 268           this, SLOT(onMouseMove(ModuleBase_IViewWindow*, QMouseEvent*)));
 269   connect(aViewer, SIGNAL(mouseRelease(ModuleBase_IViewWindow*, QMouseEvent*)),
 270           this, SLOT(onMouseRelease(ModuleBase_IViewWindow*, QMouseEvent*)));
 271
 272   QIntList aModes;
 273   aModes << TopAbs_VERTEX;
 274   aModes << TopAbs_EDGE;
 275   myWorkshop->activateSubShapesSelection(aModes);
 276 }
 277
 278 bool PartSet_WidgetPoint2D::canBeActivatedByMove()
 279 {
 280   bool aCanBeActivated = false;
 281   if (feature()->getKind() == SketchPlugin_Line::ID() &&
 282       attributeID() == SketchPlugin_Line::START_ID())
 283     aCanBeActivated = true;
 284
 285   return aCanBeActivated;
 286 }
 287
 288 void PartSet_WidgetPoint2D::deactivate()
 289 {
 290   // the value of the control should be stored to model if it was not
 291   // initialized yet. It is important when we leave this control by Tab key.
 292   // It should not be performed by the widget activation as the preview
 293   // is visualized with default value. Line point is moved to origin.
 294   AttributePtr anAttribute = myFeature->data()->attribute(attributeID());
 295   if (anAttribute && !anAttribute->isInitialized())
 296     storeValue();
 297
 298   ModuleBase_ModelWidget::deactivate();
 299   ModuleBase_IViewer* aViewer = myWorkshop->viewer();
 300   disconnect(aViewer, SIGNAL(mouseMove(ModuleBase_IViewWindow*, QMouseEvent*)),
 301              this, SLOT(onMouseMove(ModuleBase_IViewWindow*, QMouseEvent*)));
 302   disconnect(aViewer, SIGNAL(mouseRelease(ModuleBase_IViewWindow*, QMouseEvent*)),
 303              this, SLOT(onMouseRelease(ModuleBase_IViewWindow*, QMouseEvent*)));
 304
 305   myWorkshop->deactivateSubShapesSelection();
 306 }
 307
 308 bool PartSet_WidgetPoint2D::getPoint2d(const Handle(V3d_View)& theView,
 309                                        const TopoDS_Shape& theShape,
 310                                        double& theX, double& theY) const
 311 {
 312   if (!theShape.IsNull()) {
 313     if (theShape.ShapeType() == TopAbs_VERTEX) {
 314       const TopoDS_Vertex& aVertex = TopoDS::Vertex(theShape);
 315       if (!aVertex.IsNull()) {
 316         // A case when point is taken from existing vertex
 317         gp_Pnt aPoint = BRep_Tool::Pnt(aVertex);
 318         PartSet_Tools::convertTo2D(aPoint, mySketch, theView, theX, theY);
 319         return true;
 320       }
 321     }
 322   }
 323   return false;
 324 }
 325
 326 void PartSet_WidgetPoint2D::setConstraintWith(const ObjectPtr& theObject)
 327 {
 328   // Create point-edge coincedence
 329   FeaturePtr aFeature = mySketch->addFeature(SketchPlugin_ConstraintCoincidence::ID());
 330   std::shared_ptr<ModelAPI_Data> aData = aFeature->data();
 331
 332   std::shared_ptr<ModelAPI_AttributeRefAttr> aRef1 = std::dynamic_pointer_cast<
 333       ModelAPI_AttributeRefAttr>(aData->attribute(SketchPlugin_Constraint::ENTITY_A()));
 334   AttributePtr aThisAttr = feature()->data()->attribute(attributeID());
 335   std::shared_ptr<GeomDataAPI_Point2D> aThisPoint =
 336     std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aThisAttr);
 337   aRef1->setAttr(aThisPoint);
 338
 339   std::shared_ptr<ModelAPI_AttributeRefAttr> aRef2 = std::dynamic_pointer_cast<
 340       ModelAPI_AttributeRefAttr>(aData->attribute(SketchPlugin_Constraint::ENTITY_B()));
 341   aRef2->setObject(theObject);
 342
 343   aFeature->execute();
 344 }
 345
 346 void PartSet_WidgetPoint2D::onMouseRelease(ModuleBase_IViewWindow* theWnd, QMouseEvent* theEvent)
 347 {
 348   // the contex menu release by the right button should not be processed by this widget
 349   if (theEvent->button() != Qt::LeftButton)
 350     return;
 351
 352   ModuleBase_ISelection* aSelection = myWorkshop->selection();
 353   Handle(V3d_View) aView = theWnd->v3dView();
 354   // TODO: This fragment doesn't work because bug in OCC Viewer. It can be used after fixing.
 355   NCollection_List<TopoDS_Shape> aShapes;
 356   std::list<ObjectPtr> aObjects;
 357   aSelection->selectedShapes(aShapes, aObjects);
 358   // if we have selection
 359   if (aShapes.Extent() > 0) {
 360     TopoDS_Shape aShape = aShapes.First();
 361     ObjectPtr aObject = aObjects.front();
 362     FeaturePtr aSelectedFeature = ModelAPI_Feature::feature(aObject);
 363     bool anExternal = false;
 364       std::shared_ptr<SketchPlugin_Feature> aSPFeature;
 365       if (aSelectedFeature.get() != NULL)
 366         aSPFeature = std::dynamic_pointer_cast<SketchPlugin_Feature>(aSelectedFeature);
 367       if ((!aSPFeature) && (!aShape.IsNull())) {
 368         anExternal = true;
 369         ResultPtr aFixedObject = PartSet_Tools::findFixedObjectByExternal(aShape, aObject, mySketch);
 370         if (!aFixedObject.get())
 371           aObject = PartSet_Tools::createFixedObjectByExternal(aShape, aObject, mySketch);
 372
 373         double aX, aY;
 374         if (getPoint2d(aView, aShape, aX, aY) && isFeatureContainsPoint(myFeature, aX, aY)) {
 375           // do not create a constraint to the point, which already used by the feature
 376           // if the feature contains the point, focus is not switched
 377           setPoint(aX, aY);
 378         }
 379         else {
 380           if (getPoint2d(aView, aShape, aX, aY))
 381             setPoint(aX, aY);
 382           bool anOrphanPoint = aShape.ShapeType() == TopAbs_VERTEX ||
 383                                isOrphanPoint(aSelectedFeature, mySketch, aX, aY);
 384           setConstraintWith(aObject);
 385           if (!anOrphanPoint)
 386             emit vertexSelected();
 387           emit focusOutWidget(this);
 388         }
 389       }
 390     if (!anExternal) {
 391       double aX, aY;
 392       bool isProcessed = false;
 393       if (getPoint2d(aView, aShape, aX, aY) && isFeatureContainsPoint(myFeature, aX, aY)) {
 394         // when the point is selected, the coordinates of the point should be set into the attribute
 395         // if the feature contains the point, focus is not switched
 396         setPoint(aX, aY);
 397       }
 398       else {
 399         bool anOrphanPoint = isOrphanPoint(aSelectedFeature, mySketch, aX, aY);
 400         // do not set a coincidence constraint in the attribute if the feature contains a point
 401         // with the same coordinates. It is important for line creation in order to do not set
 402         // the same constraints for the same points, oterwise the result line has zero length.
 403         if (getPoint2d(aView, aShape, aX, aY)) {
 404           setPoint(aX, aY);
 405           PartSet_Tools::setConstraints(mySketch, feature(), attributeID(), aX, aY);
 406         }
 407         else if (aShape.ShapeType() == TopAbs_EDGE) {
 408           if (MyFeaturesForCoincedence.contains(myFeature->getKind().c_str()))
 409             setConstraintWith(aObject);
 410         }
 411         // it is important to perform updateObject() in order to the current value is
 412         // processed by Sketch Solver. Test case: line is created from a previous point
 413         // to some distance, but in the area of the highlighting of the point. Constraint
 414         // coincidence is created, after the solver is performed, the distance between the
 415         // points of the line becomes less than the tolerance. Validator of the line returns
 416         // false, the line will be aborted, but sketch stays valid.
 417         updateObject(feature());
 418         if (!anOrphanPoint)
 419           emit vertexSelected();
 420         emit focusOutWidget(this);
 421       }
 422     }
 423   }
 424   // End of Bug dependent fragment
 425   else {
 426     // A case when point is taken from mouse event
 427     gp_Pnt aPoint = PartSet_Tools::convertClickToPoint(theEvent->pos(), theWnd->v3dView());
 428     double aX, anY;
 429     PartSet_Tools::convertTo2D(aPoint, mySketch, aView, aX, anY);
 430
 431     // if the feature contains the point, focus is not switched
 432     if (!setPoint(aX, anY) || isFeatureContainsPoint(myFeature, aX, anY))
 433       return;
 434
 435     /// Start alternative code
 436     //std::shared_ptr<GeomDataAPI_Point2D> aFeaturePoint = std::dynamic_pointer_cast<
 437     //    GeomDataAPI_Point2D>(feature()->data()->attribute(attributeID()));
 438     //QList<FeaturePtr> aIgnore;
 439     //aIgnore.append(feature());
 440
 441     //double aTolerance = aView->Convert(7);
 442     //std::shared_ptr<GeomDataAPI_Point2D> aAttrPnt =
 443     //  PartSet_Tools::findAttributePoint(mySketch, aX, anY, aTolerance, aIgnore);
 444     //if (aAttrPnt.get() != NULL) {
 445     //  aFeaturePoint->setValue(aAttrPnt->pnt());
 446     //  PartSet_Tools::createConstraint(mySketch, aAttrPnt, aFeaturePoint);
 447     //  emit vertexSelected();
 448     //}
 449     /// End alternative code
 450     emit focusOutWidget(this);
 451   }
 452 }
 453
 454
 455 void PartSet_WidgetPoint2D::onMouseMove(ModuleBase_IViewWindow* theWnd, QMouseEvent* theEvent)
 456 {
 457   if (isEditingMode())
 458     return;
 459
 460   gp_Pnt aPoint = PartSet_Tools::convertClickToPoint(theEvent->pos(), theWnd->v3dView());
 461
 462   double aX, anY;
 463   PartSet_Tools::convertTo2D(aPoint, mySketch, theWnd->v3dView(), aX, anY);
 464   // we need to block the value state change
 465   bool isBlocked = blockValueState(true);
 466   setPoint(aX, anY);
 467   blockValueState(isBlocked);
 468   setValueState(ModifiedInViewer);
 469 }
 470
 471 double PartSet_WidgetPoint2D::x() const
 472 {
 473   return myXSpin->value();
 474 }
 475
 476 double PartSet_WidgetPoint2D::y() const
 477 {
 478   return myYSpin->value();
 479 }
 480
 481
 482 bool PartSet_WidgetPoint2D::isFeatureContainsPoint(const FeaturePtr& theFeature,
 483                                                    double theX, double theY)
 484 {
 485   bool aPointIsFound = false;
 486
 487   if (feature()->getKind() != SketchPlugin_Line::ID())
 488     return aPointIsFound;
 489
 490   AttributePtr aWidgetAttribute = myFeature->attribute(attributeID());
 491
 492   std::shared_ptr<GeomAPI_Pnt2d> aPnt2d =
 493                                     std::shared_ptr<GeomAPI_Pnt2d>(new GeomAPI_Pnt2d(theX, theY));
 494   std::list<AttributePtr> anAttributes =
 495                                 myFeature->data()->attributes(GeomDataAPI_Point2D::typeId());
 496   std::list<AttributePtr>::iterator anIter = anAttributes.begin();
 497   for(; anIter != anAttributes.end() && !aPointIsFound; anIter++) {
 498     AttributePoint2DPtr aPoint2DAttribute =
 499       std::dynamic_pointer_cast<GeomDataAPI_Point2D>(*anIter);
 500     if (aPoint2DAttribute == aWidgetAttribute)
 501       continue;
 502     if (aPoint2DAttribute.get() && aPoint2DAttribute->isInitialized()) {
 503       aPointIsFound = aPoint2DAttribute->pnt()->isEqual(aPnt2d);
 504     }
 505   }
 506   return aPointIsFound;
 507 }
 508
 509 void PartSet_WidgetPoint2D::initializeValueByActivate()
 510 {
 511 }
 512
 513 /*void PartSet_WidgetPoint2D::onValuesChanged()
 514 {
 515   emit valuesChanged();
 516 }*/
 517
 518 bool PartSet_WidgetPoint2D::processEnter()
 519 {
 520   bool isModified = getValueState() == ModifiedInPP;
 521   if (isModified) {
 522     bool isXModified = myXSpin->hasFocus();
 523     emit valuesChanged();
 524     if (isXModified)
 525       myXSpin->selectAll();
 526     else
 527       myYSpin->selectAll();
 528   }
 529   return isModified;
 530 }
 531
 532 bool PartSet_WidgetPoint2D::isOrphanPoint(const FeaturePtr& theFeature,
 533                                           const CompositeFeaturePtr& theSketch,
 534                                           double theX, double theY)
 535 {
 536   bool anOrphanPoint = false;
 537   if (theFeature.get()) {
 538     std::shared_ptr<GeomDataAPI_Point2D> aPointAttr;
 539     std::string aFeatureKind = theFeature->getKind();
 540     if (aFeatureKind == SketchPlugin_Point::ID())
 541       aPointAttr = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 542                                        theFeature->attribute(SketchPlugin_Point::COORD_ID()));
 543     else if (aFeatureKind == SketchPlugin_Circle::ID())
 544       aPointAttr = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 545                                        theFeature->attribute(SketchPlugin_Circle::CENTER_ID()));
 546
 547     else if (aFeatureKind == SketchPlugin_Arc::ID())
 548       aPointAttr = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 549                                        theFeature->attribute(SketchPlugin_Arc::CENTER_ID()));
 550
 551     /// check that the geometry point with the given coordinates is the checked point
 552     /// e.g. in arc the (x,y) point can not coicide to the center point and it automatically
 553     /// means that this point is not an orphant one.
 554     if (aPointAttr.get()) {
 555       std::shared_ptr<GeomAPI_Pnt2d> aCheckedPoint = std::shared_ptr<GeomAPI_Pnt2d>(
 556                                                     new GeomAPI_Pnt2d(theX, theY));
 557       if (!aCheckedPoint->isEqual(aPointAttr->pnt()))
 558         return anOrphanPoint;
 559     }
 560
 561     if (aPointAttr.get()) {
 562       std::shared_ptr<GeomAPI_Pnt2d> aPoint = aPointAttr->pnt();
 563       FeaturePtr aCoincidence = PartSet_Tools::findFirstCoincidence(theFeature, aPoint);
 564       anOrphanPoint = true;
 565       // if there is at least one concident line to the point, the point is not an orphant
 566       if (aCoincidence.get()) {
 567         QList<FeaturePtr> aCoinsideLines;
 568         PartSet_Tools::findCoincidences(aCoincidence, aCoinsideLines,
 569                                         SketchPlugin_ConstraintCoincidence::ENTITY_A());
 570         PartSet_Tools::findCoincidences(aCoincidence, aCoinsideLines,
 571                                         SketchPlugin_ConstraintCoincidence::ENTITY_B());
 572         QList<FeaturePtr>::const_iterator anIt = aCoinsideLines.begin(),
 573                                           aLast = aCoinsideLines.end();
 574         for (; anIt != aLast && anOrphanPoint; anIt++) {
 575           anOrphanPoint = (*anIt)->getKind() != SketchPlugin_Line::ID();
 576         }
 577       }
 578     }
 579   }
 580   return anOrphanPoint;
 581 }