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_WidgetConstraintShapeSelector.h>
  11 #include <PartSet_WidgetEditor.h>
  12 #include "PartSet_SketcherMgr.h"
  13 #include "PartSet_MenuMgr.h"
  14
  15 #include <ModuleBase_Operation.h>
  16 #include <ModuleBase_IViewer.h>
  17 #include <ModuleBase_IViewWindow.h>
  18 #include <ModuleBase_IPropertyPanel.h>
  19 #include <ModuleBase_WidgetEditor.h>
  20 #include <ModuleBase_FilterFactory.h>
  21 #include <ModuleBase_FilterLinearEdge.h>
  22 #include <ModuleBase_FilterFace.h>
  23 #include <ModuleBase_FilterMulti.h>
  24 #include <ModuleBase_FilterCustom.h>
  25 #include <ModuleBase_FilterNoConsructionSubShapes.h>
  26 #include <GeomValidators_Edge.h>
  27 #include <GeomValidators_EdgeOrVertex.h>
  28 #include <GeomValidators_Face.h>
  29 #include <GeomValidators_ConstructionComposite.h>
  30
  31 #include <PartSet_FilterSketchEntity.h>
  32
  33 #include <ModelAPI_Object.h>
  34 #include <ModelAPI_Events.h>
  35 #include <ModelAPI_Validator.h>
  36 #include <ModelAPI_Data.h>
  37 #include <ModelAPI_Session.h>
  38 #include <ModelAPI_ShapeValidator.h>
  39
  40 #include <GeomDataAPI_Point2D.h>
  41 #include <GeomDataAPI_Point.h>
  42 #include <GeomDataAPI_Dir.h>
  43
  44 #include <XGUI_Displayer.h>
  45 #include <XGUI_Workshop.h>
  46 #include <XGUI_OperationMgr.h>
  47 #include <XGUI_PropertyPanel.h>
  48 #include <XGUI_ModuleConnector.h>
  49 #include <XGUI_ContextMenuMgr.h>
  50 #include <XGUI_Tools.h>
  51
  52 #include <SketchPlugin_Feature.h>
  53 #include <SketchPlugin_Sketch.h>
  54 #include <SketchPlugin_Line.h>
  55 #include <SketchPlugin_Arc.h>
  56 #include <SketchPlugin_Circle.h>
  57 #include <SketchPlugin_Point.h>
  58 #include <SketchPlugin_ConstraintLength.h>
  59 #include <SketchPlugin_ConstraintDistance.h>
  60 #include <SketchPlugin_ConstraintParallel.h>
  61 #include <SketchPlugin_ConstraintPerpendicular.h>
  62 #include <SketchPlugin_ConstraintRadius.h>
  63
  64 #include <SketcherPrs_SymbolPrs.h>
  65 #include <SketcherPrs_Tools.h>
  66
  67 #include <Events_Loop.h>
  68 #include <Config_PropManager.h>
  69 #include <Config_Keywords.h>
  70
  71 #include <StdSelect_TypeOfFace.hxx>
  72 #include <TopoDS_Vertex.hxx>
  73 #include <TopoDS.hxx>
  74 #include <TopoDS_Shape.hxx>
  75 #include <BRep_Tool.hxx>
  76 #include <AIS_Dimension.hxx>
  77
  78 #include <QObject>
  79 #include <QMouseEvent>
  80 #include <QString>
  81 #include <QTimer>
  82 #include <QApplication>
  83 #include <QMessageBox>
  84 #include <QMainWindow>
  85
  86 #include <GeomAlgoAPI_FaceBuilder.h>
  87 #include <GeomDataAPI_Dir.h>
  88
  89 #ifdef _DEBUG
  90 #include <QDebug>
  91 #endif
  92
  93 /*!Create and return new instance of XGUI_Module*/
  94 extern "C" PARTSET_EXPORT ModuleBase_IModule* createModule(ModuleBase_IWorkshop* theWshop)
  95 {
  96   return new PartSet_Module(theWshop);
  97 }
  98
  99 PartSet_Module::PartSet_Module(ModuleBase_IWorkshop* theWshop)
 100   : ModuleBase_IModule(theWshop),
 101   myRestartingMode(RM_None), myVisualLayerId(0)
 102 {
 103   mySketchMgr = new PartSet_SketcherMgr(this);
 104
 105   XGUI_ModuleConnector* aConnector = dynamic_cast<XGUI_ModuleConnector*>(theWshop);
 106   XGUI_Workshop* aWorkshop = aConnector->workshop();
 107
 108   XGUI_OperationMgr* anOpMgr = aWorkshop->operationMgr();
 109   connect(anOpMgr, SIGNAL(keyEnterReleased()), this, SLOT(onEnterReleased()));
 110   connect(anOpMgr, SIGNAL(operationActivatedByPreselection()),
 111           this, SLOT(onOperationActivatedByPreselection()));
 112
 113   ModuleBase_IViewer* aViewer = theWshop->viewer();
 114   connect(aViewer, SIGNAL(keyRelease(ModuleBase_IViewWindow*, QKeyEvent*)),
 115           this, SLOT(onKeyRelease(ModuleBase_IViewWindow*, QKeyEvent*)));
 116   connect(aViewer, SIGNAL(viewTransformed(int)),
 117           SLOT(onViewTransformed(int)));
 118
 119   myMenuMgr = new PartSet_MenuMgr(this);
 120 }
 121
 122 PartSet_Module::~PartSet_Module()
 123 {
 124   if (!myDocumentShapeFilter.IsNull())
 125     myDocumentShapeFilter.Nullify();
 126 }
 127
 128 void PartSet_Module::registerValidators()
 129 {
 130   //Registering of validators
 131   SessionPtr aMgr = ModelAPI_Session::get();
 132   ModelAPI_ValidatorsFactory* aFactory = aMgr->validators();
 133   aFactory->registerValidator("PartSet_DistanceSelection", new PartSet_DistanceSelection);
 134   aFactory->registerValidator("PartSet_LengthSelection", new PartSet_LengthSelection);
 135   aFactory->registerValidator("PartSet_PerpendicularSelection", new PartSet_PerpendicularSelection);
 136   aFactory->registerValidator("PartSet_ParallelSelection", new PartSet_ParallelSelection);
 137   aFactory->registerValidator("PartSet_RadiusSelection", new PartSet_RadiusSelection);
 138   aFactory->registerValidator("PartSet_RigidSelection", new PartSet_RigidSelection);
 139   aFactory->registerValidator("PartSet_CoincidentSelection", new PartSet_CoincidentSelection);
 140   aFactory->registerValidator("PartSet_HVDirSelection", new PartSet_HVDirSelection);
 141   aFactory->registerValidator("PartSet_TangentSelection", new PartSet_TangentSelection);
 142
 143   aFactory->registerValidator("PartSet_DifferentObjects", new PartSet_DifferentObjectsValidator);
 144   aFactory->registerValidator("PartSet_DifferentShapes", new ModelAPI_ShapeValidator);
 145
 146   aFactory->registerValidator("GeomValidators_Edge", new GeomValidators_Edge);
 147   aFactory->registerValidator("GeomValidators_EdgeOrVertex",
 148                               new GeomValidators_EdgeOrVertex);
 149   aFactory->registerValidator("GeomValidators_Face", new GeomValidators_Face);
 150
 151   aFactory->registerValidator("GeomValidators_ConstructionComposite",
 152                               new GeomValidators_ConstructionComposite);
 153
 154   aFactory->registerValidator("PartSet_SketchEntityValidator",
 155                               new PartSet_SketchEntityValidator);
 156
 157   aFactory->registerValidator("PartSet_SameTypeAttr",
 158                               new PartSet_SameTypeAttrValidator);
 159 }
 160
 161 void PartSet_Module::registerFilters()
 162 {
 163   //Registering of selection filters
 164   XGUI_ModuleConnector* aConnector = dynamic_cast<XGUI_ModuleConnector*>(workshop());
 165   ModuleBase_FilterFactory* aFactory = aConnector->selectionFilters();
 166
 167   //aFactory->registerFilter("EdgeFilter", new ModuleBase_FilterLinearEdge);
 168   //aFactory->registerFilter("FaceFilter", new ModuleBase_FilterFace);
 169   //aFactory->registerFilter("MultiFilter", new ModuleBase_FilterMulti);
 170   //Handle(SelectMgr_Filter) aSelectFilter = new ModuleBase_FilterNoConsructionSubShapes(workshop());
 171   //aFactory->registerFilter("NoConstructionSubShapesFilter",
 172   //          new ModuleBase_FilterCustom(aSelectFilter));
 173   //Handle(SelectMgr_Filter) aSelectFilter = new PartSet_FilterSketchEntity(workshop());
 174   //aFactory->registerFilter("SketchEntityFilter", new ModuleBase_FilterCustom(aSelectFilter));
 175 }
 176
 177 void PartSet_Module::registerProperties()
 178 {
 179   Config_PropManager::registerProp("Sketch planes", "planes_size", "Size", Config_Prop::Double,
 180                                    PLANE_SIZE);
 181   Config_PropManager::registerProp("Sketch planes", "planes_thickness", "Thickness",
 182                                    Config_Prop::Integer, SKETCH_WIDTH);
 183 }
 184
 185 void PartSet_Module::operationCommitted(ModuleBase_Operation* theOperation)
 186 {
 187   if (PartSet_SketcherMgr::isNestedSketchOperation(theOperation)) {
 188     mySketchMgr->commitNestedSketch(theOperation);
 189   }
 190
 191   if (theOperation->isEditOperation())
 192     return;
 193   // the selection is cleared after commit the create operation
 194   // in order to do not use the same selected objects in the restarted operation
 195   // for common behaviour, the selection is cleared even if the operation is not restarted
 196   Handle(AIS_InteractiveContext) aContext = myWorkshop->viewer()->AISContext();
 197   if (!aContext.IsNull())
 198     aContext->ClearSelected();
 199
 200   /// Restart sketcher operations automatically
 201   FeaturePtr aFeature = theOperation->feature();
 202   std::shared_ptr<SketchPlugin_Feature> aSPFeature =
 203             std::dynamic_pointer_cast<SketchPlugin_Feature>(aFeature);
 204   if (aSPFeature && (myRestartingMode == RM_LastFeatureUsed ||
 205                      myRestartingMode == RM_EmptyFeatureUsed)) {
 206     myLastOperationId = theOperation->id();
 207     myLastFeature = myRestartingMode == RM_LastFeatureUsed ? theOperation->feature() : FeaturePtr();
 208
 209     launchOperation(myLastOperationId);
 210   }
 211   breakOperationSequence();
 212 }
 213
 214 void PartSet_Module::breakOperationSequence()
 215 {
 216   myLastOperationId = "";
 217   myLastFeature = FeaturePtr();
 218   myRestartingMode = RM_None;
 219 }
 220
 221 void PartSet_Module::operationAborted(ModuleBase_Operation* theOperation)
 222 {
 223   breakOperationSequence();
 224 }
 225
 226 void PartSet_Module::operationStarted(ModuleBase_Operation* theOperation)
 227 {
 228   if (PartSet_SketcherMgr::isSketchOperation(theOperation)) {
 229     Handle(V3d_Viewer) aViewer = myWorkshop->viewer()->AISContext()->CurrentViewer();
 230     aViewer->AddZLayer(myVisualLayerId);
 231     mySketchMgr->startSketch(theOperation);
 232   }
 233   else if (PartSet_SketcherMgr::isNestedSketchOperation(theOperation)) {
 234     mySketchMgr->startNestedSketch(theOperation);
 235   }
 236
 237   if (myDocumentShapeFilter.IsNull())
 238     myDocumentShapeFilter = new PartSet_GlobalFilter(myWorkshop);
 239   myWorkshop->viewer()->addSelectionFilter(myDocumentShapeFilter);
 240 }
 241
 242 void PartSet_Module::operationStopped(ModuleBase_Operation* theOperation)
 243 {
 244   if (PartSet_SketcherMgr::isSketchOperation(theOperation)) {
 245     mySketchMgr->stopSketch(theOperation);
 246     Handle(V3d_Viewer) aViewer = myWorkshop->viewer()->AISContext()->CurrentViewer();
 247     aViewer->RemoveZLayer(myVisualLayerId);
 248     myVisualLayerId = 0;
 249   }
 250   else if (PartSet_SketcherMgr::isNestedSketchOperation(theOperation)) {
 251     mySketchMgr->stopNestedSketch(theOperation);
 252   }
 253   myWorkshop->viewer()->removeSelectionFilter(myDocumentShapeFilter);
 254 }
 255
 256 ModuleBase_Operation* PartSet_Module::currentOperation() const
 257 {
 258   XGUI_ModuleConnector* aConnector = dynamic_cast<XGUI_ModuleConnector*>(workshop());
 259   XGUI_OperationMgr* anOpMgr = aConnector->workshop()->operationMgr();
 260   return anOpMgr->currentOperation();
 261 }
 262
 263 bool PartSet_Module::canUndo() const
 264 {
 265   bool aCanUndo = false;
 266   SessionPtr aMgr = ModelAPI_Session::get();
 267   if (aMgr->hasModuleDocument() && aMgr->canUndo()) {
 268     aCanUndo = !aMgr->isOperation();
 269     if (!aCanUndo) // check the enable state additionally by sketch manager
 270       aCanUndo = aMgr->canUndo();
 271   }
 272   return aCanUndo;
 273 }
 274
 275 bool PartSet_Module::canRedo() const
 276 {
 277   bool aCanRedo = false;
 278   SessionPtr aMgr = ModelAPI_Session::get();
 279   if (aMgr->hasModuleDocument() && aMgr->canRedo()) {
 280     aCanRedo = !aMgr->isOperation();
 281     if (!aCanRedo) // check the enable state additionally by sketch manager
 282       aCanRedo = aMgr->canRedo();
 283   }
 284   return aCanRedo;
 285 }
 286
 287 bool PartSet_Module::canDisplayObject(const ObjectPtr& theObject) const
 288 {
 289   // the sketch manager put the restriction to the objects display
 290   return mySketchMgr->canDisplayObject(theObject);
 291 }
 292
 293
 294 bool PartSet_Module::addViewerItems(QMenu* theMenu, const QMap<QString, QAction*>& theStdActions) const
 295 {
 296   return myMenuMgr->addViewerItems(theMenu, theStdActions);
 297 }
 298
 299 bool PartSet_Module::isMouseOverWindow()
 300 {
 301   return mySketchMgr->isMouseOverWindow();
 302 }
 303
 304 void PartSet_Module::propertyPanelDefined(ModuleBase_Operation* theOperation)
 305 {
 306   ModuleBase_IPropertyPanel* aPanel = theOperation->propertyPanel();
 307   if (PartSet_SketcherMgr::isSketchOperation(theOperation) &&  (theOperation->isEditOperation())) {
 308     // we have to manually activate the sketch label in edit mode
 309       aPanel->activateWidget(aPanel->modelWidgets().first());
 310       return;
 311   }
 312
 313   // Restart last operation type
 314   if ((theOperation->id() == myLastOperationId) && myLastFeature) {
 315     ModuleBase_ModelWidget* aWgt = aPanel->activeWidget();
 316     if (theOperation->id().toStdString() == SketchPlugin_Line::ID()) {
 317       // Initialise new line with first point equal to end of previous
 318       PartSet_WidgetPoint2D* aPnt2dWgt = dynamic_cast<PartSet_WidgetPoint2D*>(aWgt);
 319       if (aPnt2dWgt) {
 320         std::shared_ptr<ModelAPI_Data> aData = myLastFeature->data();
 321         std::shared_ptr<GeomDataAPI_Point2D> aPoint =
 322           std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aData->attribute(SketchPlugin_Line::END_ID()));
 323         if (aPoint) {
 324           aPnt2dWgt->setPoint(aPoint->x(), aPoint->y());
 325           PartSet_Tools::setConstraints(mySketchMgr->activeSketch(), theOperation->feature(),
 326             aWgt->attributeID(), aPoint->x(), aPoint->y());
 327           aPanel->activateNextWidget(aPnt2dWgt);
 328         }
 329       }
 330     }
 331   } else {
 332     // Start editing constraint
 333     if (theOperation->isEditOperation()) {
 334       // TODO: #391 - to be removed
 335       std::string aId = theOperation->id().toStdString();
 336       if (PartSet_SketcherMgr::isNestedSketchOperation(theOperation) &&
 337           PartSet_SketcherMgr::isDistanceOperation(theOperation)) {
 338         // Find and activate widget for management of point for dimension line position
 339         QList<ModuleBase_ModelWidget*> aWidgets = aPanel->modelWidgets();
 340         foreach (ModuleBase_ModelWidget* aWgt, aWidgets) {
 341           PartSet_WidgetPoint2D* aPntWgt = dynamic_cast<PartSet_WidgetPoint2D*>(aWgt);
 342           if (aPntWgt) {
 343             aPanel->activateWidget(aPntWgt);
 344             return;
 345           }
 346         }
 347       }
 348     }
 349   }
 350 }
 351
 352
 353 void PartSet_Module::onSelectionChanged()
 354 {
 355   ModuleBase_Operation* aOperation = myWorkshop->currentOperation();
 356   if (!aOperation)
 357     return;
 358
 359   bool isSketcherOp = false;
 360   // An edit operation is enable only if the current opeation is the sketch operation
 361   if (mySketchMgr->activeSketch()) {
 362     if (PartSet_Tools::sketchPlane(mySketchMgr->activeSketch()))
 363       isSketcherOp = PartSet_SketcherMgr::isSketchOperation(aOperation);
 364   }
 365   if (isSketcherOp) {
 366     // Editing of constraints can be done on selection
 367     ModuleBase_ISelection* aSelect = myWorkshop->selection();
 368     QList<ModuleBase_ViewerPrs> aSelected = aSelect->getSelected();
 369     if (aSelected.size() == 1) {
 370       ModuleBase_ViewerPrs aPrs = aSelected.first();
 371       ObjectPtr aObject = aPrs.object();
 372       FeaturePtr aFeature = ModelAPI_Feature::feature(aObject);
 373       if (aFeature) {
 374         std::string aId = aFeature->getKind();
 375         if ((aId == SketchPlugin_ConstraintRadius::ID()) ||
 376             (aId == SketchPlugin_ConstraintLength::ID()) ||
 377             (aId == SketchPlugin_ConstraintDistance::ID())) {
 378           editFeature(aFeature);
 379         }
 380       }
 381     }
 382   }
 383 }
 384
 385 void PartSet_Module::onKeyRelease(ModuleBase_IViewWindow* theWnd, QKeyEvent* theEvent)
 386 {
 387   XGUI_ModuleConnector* aConnector = dynamic_cast<XGUI_ModuleConnector*>(workshop());
 388   XGUI_OperationMgr* anOpMgr = aConnector->workshop()->operationMgr();
 389   anOpMgr->onKeyReleased(theEvent);
 390 }
 391
 392 void PartSet_Module::onEnterReleased()
 393 {
 394   myRestartingMode = RM_EmptyFeatureUsed;
 395 }
 396
 397 void PartSet_Module::onOperationActivatedByPreselection()
 398 {
 399   ModuleBase_Operation* anOperation = myWorkshop->currentOperation();
 400   if(anOperation && PartSet_SketcherMgr::isNestedSketchOperation(anOperation)) {
 401     // Set final definitions if they are necessary
 402     //propertyPanelDefined(aOperation);
 403
 404     /// Commit sketcher operations automatically
 405     anOperation->commit();
 406   }
 407 }
 408
 409 void PartSet_Module::onNoMoreWidgets()
 410 {
 411   ModuleBase_Operation* anOperation = myWorkshop->currentOperation();
 412   if (anOperation) {
 413     if (PartSet_SketcherMgr::isNestedSketchOperation(anOperation)) {
 414       if (myRestartingMode != RM_Forbided)
 415         myRestartingMode = RM_LastFeatureUsed;
 416       anOperation->commit();
 417     }
 418   }
 419 }
 420
 421 void PartSet_Module::onVertexSelected()
 422 {
 423   ModuleBase_Operation* aOperation = myWorkshop->currentOperation();
 424   if (aOperation->id().toStdString() == SketchPlugin_Line::ID()) {
 425     /// If last line finished on vertex the lines creation sequence has to be break
 426     ModuleBase_IPropertyPanel* aPanel = aOperation->propertyPanel();
 427     ModuleBase_ModelWidget* anActiveWidget = aPanel->activeWidget();
 428     const QList<ModuleBase_ModelWidget*>& aWidgets = aPanel->modelWidgets();
 429     QList<ModuleBase_ModelWidget*>::const_iterator anIt = aWidgets.begin(), aLast = aWidgets.end();
 430     bool aFoundWidget = false;
 431     bool aFoundObligatory = false;
 432     for (; anIt != aLast && !aFoundObligatory; anIt++) {
 433       if (!aFoundWidget)
 434         aFoundWidget = *anIt == anActiveWidget;
 435       else
 436         aFoundObligatory = (*anIt)->isObligatory();
 437     }
 438     if (!aFoundObligatory)
 439       myRestartingMode = RM_Forbided;
 440   }
 441 }
 442
 443 ModuleBase_ModelWidget* PartSet_Module::createWidgetByType(const std::string& theType, QWidget* theParent,
 444                                             Config_WidgetAPI* theWidgetApi, std::string theParentId)
 445 {
 446   XGUI_ModuleConnector* aConnector = dynamic_cast<XGUI_ModuleConnector*>(workshop());
 447   XGUI_Workshop* aWorkshop = aConnector->workshop();
 448   ModuleBase_ModelWidget* aWgt = NULL;
 449   if (theType == "sketch-start-label") {
 450     PartSet_WidgetSketchLabel* aLabelWgt = new PartSet_WidgetSketchLabel(theParent,
 451       theWidgetApi, theParentId, mySketchMgr->isConstraintsShown());
 452     aLabelWgt->setWorkshop(aWorkshop);
 453     connect(aLabelWgt, SIGNAL(planeSelected(const std::shared_ptr<GeomAPI_Pln>&)),
 454       mySketchMgr, SLOT(onPlaneSelected(const std::shared_ptr<GeomAPI_Pln>&)));
 455     connect(aLabelWgt, SIGNAL(showConstraintToggled(bool)),
 456       mySketchMgr, SLOT(onShowConstraintsToggle(bool)));
 457     aWgt = aLabelWgt;
 458   } else if (theType == "sketch-2dpoint_selector") {
 459     PartSet_WidgetPoint2D* aPointWgt = new PartSet_WidgetPoint2D(theParent, theWidgetApi, theParentId);
 460     aPointWgt->setWorkshop(aWorkshop);
 461     aPointWgt->setSketch(mySketchMgr->activeSketch());
 462     connect(aPointWgt, SIGNAL(vertexSelected()), this, SLOT(onVertexSelected()));
 463     aWgt = aPointWgt;
 464   } if (theType == "point2ddistance") {
 465     PartSet_WidgetPoint2dDistance* aDistanceWgt = new PartSet_WidgetPoint2dDistance(theParent, theWidgetApi, theParentId);
 466     aDistanceWgt->setWorkshop(aWorkshop);
 467     aDistanceWgt->setSketch(mySketchMgr->activeSketch());
 468     aWgt = aDistanceWgt;
 469   } if (theType == "sketch_shape_selector") {
 470     PartSet_WidgetShapeSelector* aShapeSelectorWgt =
 471       new PartSet_WidgetShapeSelector(theParent, workshop(), theWidgetApi, theParentId);
 472     aShapeSelectorWgt->setSketcher(mySketchMgr->activeSketch());
 473     aWgt = aShapeSelectorWgt;
 474   } if (theType == "sketch_constraint_shape_selector") {
 475     PartSet_WidgetConstraintShapeSelector* aConstraintShapeSelectorWgt =
 476       new PartSet_WidgetConstraintShapeSelector(theParent, workshop(), theWidgetApi, theParentId);
 477     aConstraintShapeSelectorWgt->setSketcher(mySketchMgr->activeSketch());
 478     aWgt = aConstraintShapeSelectorWgt;
 479   } if (theType == WDG_DOUBLEVALUE_EDITOR) {
 480     aWgt = new PartSet_WidgetEditor(theParent, workshop(), theWidgetApi, theParentId);
 481   }
 482   return aWgt;
 483 }
 484
 485
 486 bool PartSet_Module::deleteObjects()
 487 {
 488   // 1. check whether the delete should be processed in the module
 489   ModuleBase_Operation* anOperation = myWorkshop->currentOperation();
 490   bool isSketchOp = PartSet_SketcherMgr::isSketchOperation(anOperation),
 491        isNestedOp = PartSet_SketcherMgr::isNestedSketchOperation(anOperation);
 492   if (!isSketchOp && !isNestedOp)
 493     return false;
 494
 495   // 2. find selected presentations
 496   // selected objects should be collected before the current operation abort because
 497   // the abort leads to selection lost on constraint objects. It can be corrected after #386 issue
 498   XGUI_ModuleConnector* aConnector = dynamic_cast<XGUI_ModuleConnector*>(workshop());
 499   XGUI_Workshop* aWorkshop = aConnector->workshop();
 500   ModuleBase_ISelection* aSel = workshop()->selection();
 501   QObjectPtrList aSelectedObj = aSel->selectedPresentations();
 502   // if there are no selected objects in the viewer, that means that the selection in another
 503   // place cased this method. It is necessary to return the false value to understande in above
 504   // method that delete is not processed
 505   if (aSelectedObj.count() == 0)
 506     return false;
 507
 508   // the active nested sketch operation should be aborted unconditionally
 509   if (isNestedOp)
 510     anOperation->abort();
 511
 512   // 3. start operation
 513   QString aDescription = aWorkshop->contextMenuMgr()->action("DELETE_CMD")->text();
 514   SessionPtr aMgr = ModelAPI_Session::get();
 515   aMgr->startOperation(aDescription.toStdString());
 516
 517   // 4. delete features
 518   // sketch feature should be skipped, only sub-features can be removed
 519   // when sketch operation is active
 520   std::set<FeaturePtr> anIgnoredFeatures;
 521   anIgnoredFeatures.insert(mySketchMgr->activeSketch());
 522   aWorkshop->deleteFeatures(aSelectedObj, anIgnoredFeatures);
 523
 524   // 5. stop operation
 525   aWorkshop->displayer()->updateViewer();
 526   aMgr->finishOperation();
 527
 528   return true;
 529 }
 530
 531
 532 void PartSet_Module::onObjectDisplayed(ObjectPtr theObject, AISObjectPtr theAIS)
 533 {
 534   Handle(AIS_InteractiveObject) anAIS = theAIS->impl<Handle(AIS_InteractiveObject)>();
 535   if (!anAIS.IsNull()) {
 536     Handle(AIS_InteractiveContext) aCtx = anAIS->GetContext();
 537     Handle(AIS_Dimension) aDim = Handle(AIS_Dimension)::DownCast(anAIS);
 538     if (!aDim.IsNull()) {
 539       aCtx->SetZLayer(aDim, myVisualLayerId);
 540     } else {
 541       Handle(SketcherPrs_SymbolPrs) aCons = Handle(SketcherPrs_SymbolPrs)::DownCast(anAIS);
 542       if (!aCons.IsNull())
 543         aCtx->SetZLayer(aCons, myVisualLayerId);
 544     }
 545   }
 546 }
 547
 548 void PartSet_Module::onViewTransformed(int theTrsfType)
 549 {
 550   // Set length of arrows constant in pixel size
 551   // if the operation is panning or rotate or panglobal then do nothing
 552   if ((theTrsfType == 1) || (theTrsfType == 3) || (theTrsfType == 4))
 553     return;
 554
 555   ModuleBase_IViewer* aViewer = myWorkshop->viewer();
 556   Handle(V3d_View) aView = aViewer->activeView();
 557
 558   XGUI_ModuleConnector* aConnector = dynamic_cast<XGUI_ModuleConnector*>(myWorkshop);
 559   XGUI_Workshop* aWorkshop = aConnector->workshop();
 560   XGUI_Displayer* aDisplayer = aWorkshop->displayer();
 561   Handle(AIS_InteractiveContext) aContext = myWorkshop->viewer()->AISContext();
 562
 563   double aLen = aView->Convert(15);
 564
 565   SketcherPrs_Tools::setArrowSize(aLen);
 566   bool isModified = false;
 567   QList<AISObjectPtr> aPrsList = aDisplayer->displayedPresentations();
 568   foreach (AISObjectPtr aAIS, aPrsList) {
 569     Handle(AIS_InteractiveObject) aAisObj = aAIS->impl<Handle(AIS_InteractiveObject)>();
 570
 571     Handle(AIS_Dimension) aDim = Handle(AIS_Dimension)::DownCast(aAisObj);
 572     if (!aDim.IsNull()) {
 573       aDim->DimensionAspect()->ArrowAspect()->SetLength(aLen);
 574       aContext->Redisplay(aDim, false);
 575       isModified = true;
 576     }
 577   }
 578   if (isModified)
 579     aDisplayer->updateViewer();
 580 }