src/XGUI/XGUI_OperationMgr.cpp

   1 // Copyright (C) 2014-20xx CEA/DEN, EDF R&D -->
   2
   3 // File:        XGUI_OperationMgr.cpp
   4 // Created:     20 Apr 2014
   5 // Author:      Natalia ERMOLAEVA
   6
   7 #include "XGUI_OperationMgr.h"
   8 #include "XGUI_ModuleConnector.h"
   9 #include "XGUI_Workshop.h"
  10 #include "XGUI_ErrorMgr.h"
  11 #include "XGUI_Tools.h"
  12 #include "XGUI_ObjectsBrowser.h"
  13 #include "XGUI_ContextMenuMgr.h"
  14
  15 #include <ModuleBase_IPropertyPanel.h>
  16 #include <ModuleBase_ModelWidget.h>
  17 #include "ModuleBase_Operation.h"
  18 #include "ModuleBase_IWorkshop.h"
  19 #include "ModuleBase_IModule.h"
  20 #include <ModuleBase_IViewer.h>
  21 #include "ModuleBase_OperationDescription.h"
  22 #include "ModuleBase_OperationFeature.h"
  23 #include "ModuleBase_Tools.h"
  24
  25 #include "ModelAPI_CompositeFeature.h"
  26 #include "ModelAPI_Session.h"
  27
  28 #include <XGUI_PropertyPanel.h>
  29 #include <QToolButton>
  30
  31 #include <QMessageBox>
  32 #include <QApplication>
  33 #include <QKeyEvent>
  34
  35 //#define DEBUG_CURRENT_FEATURE
  36
  37 /// Processes "Delete" key event of application. This key is used by several application actions.
  38 /// There is a logical order of the actions processing. So the key can not be set for actions
  39 /// as a shortcut. The class listens the key event and call operation manager processor.
  40 class XGUI_ShortCutListener : public QObject
  41 {
  42 public:
  43   /// Constructor
  44   /// \param theParent the parent to be deleted when the parent is deleted
  45   /// \param theOperationMgr the class to perform deletion
  46   XGUI_ShortCutListener(QObject* theParent, XGUI_OperationMgr* theOperationMgr)
  47     : QObject(theParent), myOperationMgr(theOperationMgr)
  48   {
  49     qApp->installEventFilter(this);
  50   }
  51   ~XGUI_ShortCutListener() {}
  52
  53   /// Switch on short cut listener
  54   void setActive(const bool theIsActive) { myIsActive = theIsActive; }
  55
  56   /// Redefinition of virtual function to process Delete key release
  57   virtual bool eventFilter(QObject *theObject, QEvent *theEvent)
  58   {
  59     bool isAccepted = false;
  60     if (myIsActive && theEvent->type() == QEvent::KeyRelease) {
  61       QKeyEvent* aKeyEvent = dynamic_cast<QKeyEvent*>(theEvent);
  62       if(aKeyEvent) {
  63         switch (aKeyEvent->key()) {
  64           case Qt::Key_Delete: {
  65             isAccepted = myOperationMgr->onProcessDelete(theObject);
  66           }
  67         }
  68       }
  69     }
  70     if (!isAccepted)
  71       isAccepted = QObject::eventFilter(theObject, theEvent);
  72     return isAccepted;
  73   }
  74
  75 private:
  76   XGUI_OperationMgr* myOperationMgr; /// processor for key event
  77   bool myIsActive; /// boolean state whether the event filter perform own signal processing
  78 };
  79
  80 XGUI_OperationMgr::XGUI_OperationMgr(QObject* theParent,
  81                                      ModuleBase_IWorkshop* theWorkshop)
  82 : QObject(theParent), myWorkshop(theWorkshop)
  83 {
  84   /// we need to install filter to the application in order to react to 'Delete' key button
  85   /// this key can not be a short cut for a corresponded action because we need to set
  86   /// the actions priority
  87   myShortCutListener = new XGUI_ShortCutListener(theParent, this);
  88 }
  89
  90 XGUI_OperationMgr::~XGUI_OperationMgr()
  91 {
  92 }
  93
  94 void XGUI_OperationMgr::activate()
  95 {
  96   myShortCutListener->setActive(true);
  97 }
  98
  99 void XGUI_OperationMgr::deactivate()
 100 {
 101   myShortCutListener->setActive(false);
 102 }
 103
 104 ModuleBase_Operation* XGUI_OperationMgr::currentOperation() const
 105 {
 106   return myOperations.count() > 0 ? myOperations.last() : 0;
 107 }
 108
 109 bool XGUI_OperationMgr::isCurrentOperation(ModuleBase_Operation* theOperation)
 110 {
 111   if(!hasOperation())
 112     return false;
 113   return currentOperation() == theOperation;
 114 }
 115
 116 bool XGUI_OperationMgr::hasOperation() const
 117 {
 118   return !myOperations.isEmpty() && (myOperations.last() != NULL);
 119 }
 120
 121 bool XGUI_OperationMgr::hasOperation(const QString& theId) const
 122 {
 123   foreach(ModuleBase_Operation* aOp, myOperations) {
 124     if (aOp->id() == theId)
 125       return true;
 126   }
 127   return false;
 128 }
 129
 130 ModuleBase_Operation* XGUI_OperationMgr::findOperation(const QString& theId) const
 131 {
 132   foreach(ModuleBase_Operation* aOp, myOperations) {
 133     if (aOp->id() == theId)
 134       return aOp;
 135   }
 136   return 0;
 137 }
 138
 139
 140 int XGUI_OperationMgr::operationsCount() const
 141 {
 142   return myOperations.count();
 143 }
 144
 145 QStringList XGUI_OperationMgr::operationList() const
 146 {
 147   QStringList result;
 148   foreach(ModuleBase_Operation* eachOperation, myOperations) {
 149     ModuleBase_OperationFeature* aFOperation = dynamic_cast<ModuleBase_OperationFeature*>(eachOperation);
 150     if (aFOperation) {
 151       FeaturePtr aFeature = aFOperation->feature();
 152       if(aFeature) {
 153         result << QString::fromStdString(aFeature->getKind());
 154       }
 155     }
 156   }
 157   return result;
 158 }
 159
 160 ModuleBase_Operation* XGUI_OperationMgr::previousOperation(ModuleBase_Operation* theOperation) const
 161 {
 162   int idx = myOperations.lastIndexOf(theOperation);
 163   if(idx == -1 || idx == 0) {
 164     return NULL;
 165   }
 166   return myOperations.at(idx - 1);
 167 }
 168
 169 bool XGUI_OperationMgr::eventFilter(QObject *theObject, QEvent *theEvent)
 170 {
 171   bool isAccepted = false;
 172   if (theEvent->type() == QEvent::KeyRelease) {
 173     QKeyEvent* aKeyEvent = dynamic_cast<QKeyEvent*>(theEvent);
 174     if(aKeyEvent)
 175       isAccepted = onKeyReleased(theObject, aKeyEvent);
 176   }
 177   if (!isAccepted)
 178     isAccepted = QObject::eventFilter(theObject, theEvent);
 179
 180   return isAccepted;
 181 }
 182
 183 bool XGUI_OperationMgr::startOperation(ModuleBase_Operation* theOperation)
 184 {
 185   if (hasOperation())
 186     currentOperation()->postpone();
 187   myOperations.append(theOperation);
 188
 189   connect(theOperation, SIGNAL(beforeStarted()), SLOT(onBeforeOperationStarted()));
 190   connect(theOperation, SIGNAL(beforeAborted()), SLOT(onBeforeOperationAborted()));
 191   connect(theOperation, SIGNAL(beforeCommitted()), SLOT(onBeforeOperationCommitted()));
 192
 193   connect(theOperation, SIGNAL(started()), SLOT(onOperationStarted()));
 194   connect(theOperation, SIGNAL(aborted()), SLOT(onOperationAborted()));
 195   connect(theOperation, SIGNAL(committed()), SLOT(onOperationCommitted()));
 196
 197   connect(theOperation, SIGNAL(stopped()), SLOT(onOperationStopped()));
 198   connect(theOperation, SIGNAL(resumed()), SLOT(onOperationResumed()));
 199
 200   bool isStarted = theOperation->start();
 201   if (isStarted)
 202     onValidateOperation();
 203   return isStarted;
 204 }
 205
 206 bool XGUI_OperationMgr::abortAllOperations()
 207 {
 208   bool aResult = true;
 209   if(!hasOperation())
 210     return aResult;
 211
 212   if (operationsCount() == 1) {
 213     ModuleBase_Operation* aCurrentOperation = currentOperation();
 214     if (canStopOperation(aCurrentOperation)) {
 215       abortOperation(aCurrentOperation);
 216     }
 217     else
 218       aResult = false;
 219   }
 220   else {
 221     aResult = QMessageBox::question(qApp->activeWindow(),
 222                                     tr("Abort operation"),
 223                                     tr("All active operations will be aborted."),
 224                                     QMessageBox::Ok | QMessageBox::Cancel,
 225                                     QMessageBox::Cancel) == QMessageBox::Ok;
 226     while(aResult && hasOperation()) {
 227       abortOperation(currentOperation());
 228     }
 229   }
 230   return aResult;
 231 }
 232
 233 bool XGUI_OperationMgr::commitAllOperations()
 234 {
 235   bool isCompositeCommitted = false, anOperationProcessed = false;
 236   while (hasOperation()) {
 237     ModuleBase_Operation* anOperation = currentOperation();
 238     if (XGUI_Tools::workshop(myWorkshop)->errorMgr()->isApplyEnabled()) {
 239       anOperationProcessed = onCommitOperation();
 240     } else {
 241       abortOperation(anOperation);
 242       anOperationProcessed = true;
 243     }
 244     ModuleBase_OperationFeature* aFOperation = dynamic_cast<ModuleBase_OperationFeature*>
 245                                                                             (anOperation);
 246     if (aFOperation) {
 247       FeaturePtr aFeature = aFOperation->feature();
 248       CompositeFeaturePtr aComposite =
 249           std::dynamic_pointer_cast<ModelAPI_CompositeFeature>(aFeature);
 250       isCompositeCommitted = aComposite.get();
 251       if (isCompositeCommitted)
 252         break;
 253     }
 254     // not processed[committed] operation might be used in composite feature,
 255     // so the while will be stopped by the previous check.
 256     // this code is not necessary, but logically should be done when the processing will not
 257     // be done for not composite feature by some reasons
 258     if (!anOperationProcessed)
 259       break;
 260   }
 261   return true;
 262 }
 263
 264 void XGUI_OperationMgr::onValidateOperation()
 265 {
 266   if (!hasOperation())
 267     return;
 268   ModuleBase_OperationFeature* aFOperation = dynamic_cast<ModuleBase_OperationFeature*>
 269                                                                           (currentOperation());
 270   if(aFOperation && aFOperation->feature().get())
 271     XGUI_Tools::workshop(myWorkshop)->errorMgr()->updateActions(aFOperation->feature());
 272 }
 273
 274 void XGUI_OperationMgr::updateApplyOfOperations(ModuleBase_Operation* theOperation)
 275 {
 276   XGUI_ErrorMgr* anErrorMgr = XGUI_Tools::workshop(myWorkshop)->errorMgr();
 277   if (theOperation) {
 278     ModuleBase_OperationFeature* aFOperation = dynamic_cast<ModuleBase_OperationFeature*>(theOperation);
 279     if (aFOperation)
 280       anErrorMgr->updateAcceptAllAction(aFOperation->feature());
 281   }
 282   else {
 283     foreach(ModuleBase_Operation* anOperation, myOperations) {
 284       if (anOperation)
 285         updateApplyOfOperations(anOperation);
 286     }
 287   }
 288   // Apply button of the current operation should also be updated
 289   onValidateOperation();
 290 }
 291
 292 bool XGUI_OperationMgr::canStopOperation(ModuleBase_Operation* theOperation)
 293 {
 294   //in case of nested (sketch) operation no confirmation needed
 295   if (isGrantedOperation(theOperation->id()))
 296     return true;
 297   if (theOperation && theOperation->isModified()) {
 298     QString aMessage = tr("%1 operation will be aborted.").arg(theOperation->id());
 299     int anAnswer = QMessageBox::question(qApp->activeWindow(),
 300                                          tr("Abort operation"),
 301                                          aMessage,
 302                                          QMessageBox::Ok | QMessageBox::Cancel,
 303                                          QMessageBox::Cancel);
 304     return anAnswer == QMessageBox::Ok;
 305   }
 306   return true;
 307 }
 308
 309 bool XGUI_OperationMgr::commitOperation()
 310 {
 311   //if (hasOperation() && currentOperation()->isValid()) {
 312   //  onCommitOperation();
 313   //  return true;
 314   //}
 315   //return false;
 316   return onCommitOperation();
 317 }
 318
 319 void XGUI_OperationMgr::resumeOperation(ModuleBase_Operation* theOperation)
 320 {
 321   theOperation->resume();
 322 }
 323
 324 bool XGUI_OperationMgr::isGrantedOperation(const QString& theId)
 325 {
 326   bool isGranted = false;
 327
 328   QListIterator<ModuleBase_Operation*> anIt(myOperations);
 329   anIt.toBack();
 330   ModuleBase_Operation* aPreviousOperation = 0;
 331   while (anIt.hasPrevious() && !isGranted) {
 332     ModuleBase_Operation* anOp = anIt.previous();
 333     if (anOp)
 334       isGranted = anOp->isGranted(theId);
 335   }
 336   return isGranted;
 337 }
 338
 339 void XGUI_OperationMgr::setCurrentFeature(const FeaturePtr& theFeature)
 340 {
 341   SessionPtr aMgr = ModelAPI_Session::get();
 342   DocumentPtr aDoc = aMgr->activeDocument();
 343   bool aIsOp = aMgr->isOperation();
 344   if (!aIsOp)
 345     aMgr->startOperation(QString("Set current feature: %1").arg(theFeature->getKind().c_str()).toStdString());
 346   aDoc->setCurrentFeature(theFeature, false);
 347   if (!aIsOp)
 348     aMgr->finishOperation();
 349 }
 350
 351 bool XGUI_OperationMgr::canStartOperation(const QString& theId)
 352 {
 353   bool aCanStart = true;
 354   ModuleBase_Operation* aCurrentOp = currentOperation();
 355   if (aCurrentOp) {
 356     bool aGranted = aCurrentOp->isGranted(theId);
 357     // the started operation is granted for the current one,
 358     // e.g. current - Sketch, started - Line
 359     if (aGranted) {
 360       aCanStart = true;
 361     }
 362     else {
 363       if (!isGrantedOperation(theId)) {
 364         // the operation is not granted in the current list of operations
 365         // e.g. Edit Parameter when Sketch, Line in Sketch is active.
 366         aCanStart = abortAllOperations();
 367       }
 368       else if (canStopOperation(aCurrentOp)) {
 369         // the started operation is granted in the parrent operation,
 370         // e.g. current - Line in Sketch, started Circle
 371         if (XGUI_Tools::workshop(myWorkshop)->errorMgr()->isApplyEnabled() && aCurrentOp->isModified())
 372           aCurrentOp->commit();
 373         else
 374           abortOperation(aCurrentOp);
 375       } else {
 376         aCanStart = false;
 377       }
 378     }
 379   }
 380   return aCanStart;
 381 }
 382
 383 void XGUI_OperationMgr::abortOperation(ModuleBase_Operation* theOperation)
 384 {
 385   ModuleBase_Operation* aCurrentOperation = currentOperation();
 386   if (theOperation == aCurrentOperation)
 387     theOperation->abort();
 388   else {
 389     // it is possible to trigger upper operation(e.g. sketch, current is sketch line)
 390     // all operation from the current to triggered should also be aborted
 391     // operations over the parameter one are not aborted(e.g. extrusion cut, sketch abort)
 392     while(hasOperation()) {
 393       ModuleBase_Operation* aCurrentOperation = currentOperation();
 394       aCurrentOperation->abort();
 395       if(theOperation == aCurrentOperation)
 396         break;
 397     }
 398   }
 399 }
 400
 401 bool XGUI_OperationMgr::onCommitOperation()
 402 {
 403   bool isCommitted = false;
 404   ModuleBase_Operation* anOperation = currentOperation();
 405   if (anOperation && myWorkshop->module()->canCommitOperation())
 406     isCommitted = anOperation->commit();
 407   return isCommitted;
 408 }
 409
 410 void XGUI_OperationMgr::onAbortOperation()
 411 {
 412   ModuleBase_Operation* aCurrentOperation = currentOperation();
 413   if (aCurrentOperation && canStopOperation(aCurrentOperation)) {
 414     abortOperation(aCurrentOperation);
 415   }
 416 }
 417
 418 void XGUI_OperationMgr::onBeforeOperationStarted()
 419 {
 420   ModuleBase_Operation* aCurrentOperation = dynamic_cast<ModuleBase_Operation*>(sender());
 421   if (!aCurrentOperation)
 422     return;
 423
 424   /// Set current feature and remeber old current feature
 425   ModuleBase_OperationFeature* aFOperation = dynamic_cast<ModuleBase_OperationFeature*>(aCurrentOperation);
 426   if (aFOperation) {
 427     SessionPtr aMgr = ModelAPI_Session::get();
 428     DocumentPtr aDoc = aMgr->activeDocument();
 429     // the parameter of current feature should be false, we should use all feature, not only visible
 430     // in order to correctly save the previous feature of the nested operation, where the
 431     // features can be not visible in the tree. The problem case is Edit sketch entitity(line)
 432     // in the Sketch, created in ExtrusionCut operation. The entity disappears by commit.
 433     // When sketch entity operation started, the sketch should be cashed here as the current.
 434     // Otherwise(the flag is true), the ExtrusionCut is cashed, when commit happens, the sketch
 435     // is disabled, sketch entity is disabled as extrusion cut is created earliest then sketch.
 436     // As a result the sketch disappears from the viewer. However after commit it is displayed back.
 437     aFOperation->setPreviousCurrentFeature(aDoc->currentFeature(false));
 438
 439 #ifdef DEBUG_CURRENT_FEATURE
 440     FeaturePtr aFeature = aFOperation->feature();
 441     QString aKind = aFeature ? aFeature->getKind().c_str() : "";
 442     qDebug(QString("onBeforeOperationStarted(), edit operation = %1, feature = %2")
 443             .arg(aFOperation->isEditOperation())
 444             .arg(ModuleBase_Tools::objectInfo(aFeature)).toStdString().c_str());
 445
 446     qDebug(QString("\tdocument->currentFeature(false) = %1").arg(
 447             ModuleBase_Tools::objectInfo(ModelAPI_Session::get()->activeDocument()->currentFeature(false))).toStdString().c_str());
 448 #endif
 449
 450     if (aFOperation->isEditOperation()) {// it should be performed by the feature edit only
 451       // in create operation, the current feature is changed by addFeature()
 452       aDoc->setCurrentFeature(aFOperation->feature(), false);
 453       // this is the only place where flushes must be called after setCurrentFeature for the current
 454       // moment: after this the opertion is not finished, so, the ObjectBrowser state may be corrupted
 455       // (issue #1457)
 456       static Events_Loop* aLoop = Events_Loop::loop();
 457       static Events_ID aCreateEvent = aLoop->eventByName(EVENT_OBJECT_CREATED);
 458       aLoop->flush(aCreateEvent);
 459       static Events_ID aDeleteEvent = aLoop->eventByName(EVENT_OBJECT_DELETED);
 460       aLoop->flush(aDeleteEvent);
 461     }
 462
 463 #ifdef DEBUG_CURRENT_FEATURE
 464     qDebug("\tdocument->setCurrentFeature");
 465     qDebug(QString("\tdocument->currentFeature(false) = %1").arg(
 466             ModuleBase_Tools::objectInfo(ModelAPI_Session::get()->activeDocument()->currentFeature(false))).toStdString().c_str());
 467 #endif
 468   ModuleBase_IModule* aModule = myWorkshop->module();
 469   if (aModule)
 470     aModule->beforeOperationStarted(aFOperation);
 471   }
 472 }
 473
 474 void XGUI_OperationMgr::onOperationStarted()
 475 {
 476   ModuleBase_Operation* aSenderOperation = dynamic_cast<ModuleBase_Operation*>(sender());
 477   updateApplyOfOperations(aSenderOperation);
 478   emit operationStarted(aSenderOperation);
 479 }
 480
 481 void XGUI_OperationMgr::onBeforeOperationAborted()
 482 {
 483   onBeforeOperationCommitted();
 484 }
 485
 486 void XGUI_OperationMgr::onOperationAborted()
 487 {
 488   ModuleBase_Operation* aSenderOperation = dynamic_cast<ModuleBase_Operation*>(sender());
 489   emit operationAborted(aSenderOperation);
 490 }
 491
 492 void XGUI_OperationMgr::onBeforeOperationCommitted()
 493 {
 494   ModuleBase_Operation* aCurrentOperation = dynamic_cast<ModuleBase_Operation*>(sender());
 495   if (!aCurrentOperation)
 496     return;
 497
 498   /// Restore the previous current feature
 499   ModuleBase_OperationFeature* aFOperation = dynamic_cast<ModuleBase_OperationFeature*>(aCurrentOperation);
 500   if (aFOperation) {
 501 #ifdef DEBUG_CURRENT_FEATURE
 502     QString aKind = aFOperation->feature()->getKind().c_str();
 503     qDebug(QString("onBeforeOperationCommitted(), edit operation = %1, feature = %2")
 504             .arg(aFOperation->isEditOperation())
 505             .arg(ModuleBase_Tools::objectInfo(aFOperation->feature())).toStdString().c_str());
 506
 507     qDebug(QString("\tdocument->currentFeature(false) = %1").arg(
 508             ModuleBase_Tools::objectInfo(ModelAPI_Session::get()->activeDocument()->currentFeature(false))).toStdString().c_str());
 509 #endif
 510
 511     if (aFOperation->isEditOperation()) {
 512       /// Restore the previous current feature
 513       setCurrentFeature(aFOperation->previousCurrentFeature());
 514     }
 515     else { // create operation
 516       // the Top created feature should stays the current. In nested operations, like Line in the Sketch or
 517       // Sketch in ExtrusionCut, a previous feature should be restored on commit. It is performed here
 518       // in order to perform it in the current transaction without opening a new one.
 519       if (myOperations.front() != aFOperation)
 520         setCurrentFeature(aFOperation->previousCurrentFeature());
 521     }
 522 #ifdef DEBUG_CURRENT_FEATURE
 523     qDebug("\tdocument->setCurrentFeature");
 524     qDebug(QString("\tdocument->currentFeature(false) = %1").arg(
 525             ModuleBase_Tools::objectInfo(ModelAPI_Session::get()->activeDocument()->currentFeature(false))).toStdString().c_str());
 526 #endif
 527     ModuleBase_IModule* aModule = myWorkshop->module();
 528     if (aModule)
 529       aModule->beforeOperationStopped(aFOperation);
 530   }
 531 }
 532
 533 void XGUI_OperationMgr::onOperationCommitted()
 534 {
 535   // apply state for all features from the stack of operations should be updated
 536   updateApplyOfOperations();
 537
 538   ModuleBase_Operation* aSenderOperation = dynamic_cast<ModuleBase_Operation*>(sender());
 539   emit operationCommitted(aSenderOperation);
 540 }
 541
 542 void XGUI_OperationMgr::onOperationResumed()
 543 {
 544   ModuleBase_Operation* aSenderOperation = dynamic_cast<ModuleBase_Operation*>(sender());
 545   emit operationResumed(aSenderOperation);
 546 }
 547
 548 void XGUI_OperationMgr::onOperationStopped()
 549 {
 550   ModuleBase_Operation* aSenderOperation = dynamic_cast<ModuleBase_Operation*>(sender());
 551   ModuleBase_Operation* aCurrentOperation = currentOperation();
 552   if (!aSenderOperation || !aCurrentOperation || aSenderOperation != aCurrentOperation)
 553     return;
 554
 555   myOperations.removeAll(aCurrentOperation);
 556   aCurrentOperation->deleteLater();
 557
 558   emit operationStopped(aCurrentOperation);
 559
 560   // get last operation which can be resumed
 561   ModuleBase_Operation* aResultOp = 0;
 562   QListIterator<ModuleBase_Operation*> anIt(myOperations);
 563   anIt.toBack();
 564   while (anIt.hasPrevious()) {
 565     ModuleBase_Operation* anOp = anIt.previous();
 566     if (anOp) {
 567       aResultOp = anOp;
 568       break;
 569     }
 570   }
 571   if (aResultOp) {
 572     bool isModified = aCurrentOperation->isModified();
 573     aResultOp->setIsModified(aResultOp->isModified() || isModified);
 574     resumeOperation(aResultOp);
 575     onValidateOperation();
 576   }
 577 }
 578
 579 bool XGUI_OperationMgr::onKeyReleased(QObject *theObject, QKeyEvent* theEvent)
 580 {
 581   // Let the manager decide what to do with the given key combination.
 582   ModuleBase_Operation* anOperation = currentOperation();
 583   bool isAccepted = false;
 584   switch (theEvent->key()) {
 585     case Qt::Key_Return:
 586     case Qt::Key_Enter: {
 587       isAccepted = onProcessEnter(theObject);
 588     }
 589     break;
 590     case Qt::Key_N:
 591     case Qt::Key_P: {
 592       bool noModifiers = (theEvent->modifiers() == Qt::NoModifier);
 593       if (noModifiers) {
 594         ModuleBase_IViewer* aViewer = myWorkshop->viewer();
 595         Handle(AIS_InteractiveContext) aContext = aViewer->AISContext();
 596         if (!aContext.IsNull()) {
 597           Handle(V3d_View) aView = aViewer->activeView();
 598           if ((theEvent->key() == Qt::Key_N))
 599             aContext->HilightNextDetected(aView);
 600           else if ((theEvent->key() == Qt::Key_P))
 601             aContext->HilightPreviousDetected(aView);
 602         }
 603       }
 604     }
 605     break;
 606     break;
 607     default:
 608       isAccepted = false;
 609       break;
 610   }
 611   //if(anOperation) {
 612   //  anOperation->keyReleased(theEvent->key());
 613   //}
 614   return isAccepted;
 615 }
 616
 617 bool XGUI_OperationMgr::onProcessEnter(QObject* theObject)
 618 {
 619   bool isAccepted = false;
 620   ModuleBase_Operation* aOperation = currentOperation();
 621   // to avoid enter processing when operation has not been started yet
 622   if (!aOperation)
 623     return isAccepted;
 624   ModuleBase_IPropertyPanel* aPanel = aOperation->propertyPanel();
 625   // only property panel enter is processed in order to do not process enter in application dialogs
 626   bool isPPChild = isChildObject(theObject, aPanel);
 627   if (!isPPChild)
 628     return isAccepted;
 629
 630   ModuleBase_ModelWidget* anActiveWgt = aPanel->activeWidget();
 631   bool isAborted = false;
 632   if (!anActiveWgt) {
 633     QWidget* aFocusWidget = aPanel->focusWidget();
 634     QToolButton* aCancelBtn = dynamic_cast<XGUI_PropertyPanel*>(aPanel)->findButton(PROP_PANEL_CANCEL);
 635     if (aFocusWidget && aCancelBtn && aFocusWidget == aCancelBtn) {
 636       abortOperation(aOperation);
 637       isAccepted = true;
 638       isAborted = true;
 639     }
 640   }
 641   if (!isAborted) {
 642     isAccepted = anActiveWgt && anActiveWgt->processEnter();
 643     if (!isAccepted) {
 644       isAccepted = myWorkshop->module()->processEnter(anActiveWgt ? anActiveWgt->attributeID() : "");
 645       if (!isAccepted) {
 646         /// functionality is similar to Apply click
 647         ModuleBase_OperationFeature* aFOperation = dynamic_cast<ModuleBase_OperationFeature*>(currentOperation());
 648         if (!aFOperation || myWorkshop->module()->getFeatureError(aFOperation->feature()).isEmpty()) {
 649           // key released is emitted to apply the current value to the model if it was modified in PP
 650           emit keyEnterReleased();
 651           commitOperation();
 652           isAccepted = true;
 653         }
 654         else
 655           isAccepted = false;
 656       }
 657     }
 658   }
 659   return isAccepted;
 660 }
 661
 662 bool XGUI_OperationMgr::onProcessDelete(QObject* theObject)
 663 {
 664   bool isAccepted = false;
 665   ModuleBase_Operation* aOperation = currentOperation();
 666   ModuleBase_ModelWidget* anActiveWgt = 0;
 667   // firstly the widget should process Delete action
 668   ModuleBase_IPropertyPanel* aPanel;
 669   bool isPPChildObject = false;
 670   if (aOperation) {
 671     aPanel = aOperation->propertyPanel();
 672     if (aPanel) {
 673       isPPChildObject = isChildObject(theObject, aPanel);
 674       // process delete in active widget only if delete sender is child of property panel
 675       // it is necessary for the case when OB is shown, user perform selection and click Delete
 676       if (isPPChildObject) {
 677         anActiveWgt = aPanel->activeWidget();
 678         if (anActiveWgt) {
 679           isAccepted = anActiveWgt->processDelete();
 680         }
 681       }
 682     }
 683   }
 684   if (!isAccepted) {
 685     // after widget, object browser and viewer should process delete
 686     /// other widgets such as line edit controls should not lead to
 687     /// processing delete by workshop
 688     XGUI_ObjectsBrowser* aBrowser = XGUI_Tools::workshop(myWorkshop)->objectBrowser();
 689     QWidget* aViewPort = myWorkshop->viewer()->activeViewPort();
 690     bool isToDeleteObject = false;
 691     XGUI_Workshop* aWorkshop = XGUI_Tools::workshop(myWorkshop);
 692     XGUI_ContextMenuMgr* aContextMenuMgr = aWorkshop->contextMenuMgr();
 693     if (theObject == aBrowser->treeView()) {
 694       aContextMenuMgr->updateObjectBrowserMenu();
 695       isToDeleteObject = aContextMenuMgr->action("DELETE_CMD")->isEnabled();
 696     }
 697     else if (isChildObject(theObject, aViewPort)) {
 698       aContextMenuMgr->updateViewerMenu();
 699       isToDeleteObject = aContextMenuMgr->action("DELETE_CMD")->isEnabled();
 700     }
 701     else if (isPPChildObject) {
 702       // property panel child object is processed to process delete performed on Apply button of PP
 703       isToDeleteObject = true;
 704     }
 705     if (isToDeleteObject) {
 706       aWorkshop->deleteObjects();
 707       isAccepted = true;
 708     }
 709   }
 710
 711   return isAccepted;
 712 }
 713
 714 bool XGUI_OperationMgr::isChildObject(const QObject* theObject, const QObject* theParent)
 715 {
 716   bool isPPChild = false;
 717   if (theParent && theObject) {
 718     QObject* aParent = (QObject*)theObject;
 719     while (aParent ) {
 720       isPPChild = aParent == theParent;
 721       if (isPPChild)
 722         break;
 723       aParent = aParent->parent();
 724     }
 725   }
 726   return isPPChild;
 727 }