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 #include <QLineEdit>
  31
  32 #include <QMessageBox>
  33 #include <QApplication>
  34 #include <QKeyEvent>
  35
  36 //#define DEBUG_CURRENT_FEATURE
  37
  38 /// Processes "Delete" key event of application. This key is used by several application actions.
  39 /// There is a logical order of the actions processing. So the key can not be set for actions
  40 /// as a shortcut. The class listens the key event and call operation manager processor.
  41 class XGUI_ShortCutListener : public QObject
  42 {
  43 public:
  44   /// Constructor
  45   /// \param theParent the parent to be deleted when the parent is deleted
  46   /// \param theOperationMgr the class to perform deletion
  47   XGUI_ShortCutListener(QObject* theParent, XGUI_OperationMgr* theOperationMgr)
  48     : QObject(theParent), myOperationMgr(theOperationMgr)
  49   {
  50     qApp->installEventFilter(this);
  51   }
  52   ~XGUI_ShortCutListener() {}
  53
  54   /// Switch on short cut listener
  55   void setActive(const bool theIsActive) { myIsActive = theIsActive; }
  56
  57   /// Redefinition of virtual function to process Delete key release
  58   virtual bool eventFilter(QObject *theObject, QEvent *theEvent)
  59   {
  60     bool isAccepted = false;
  61     if (myIsActive && theEvent->type() == QEvent::KeyRelease) {
  62       QKeyEvent* aKeyEvent = dynamic_cast<QKeyEvent*>(theEvent);
  63       if (aKeyEvent) {
  64         switch (aKeyEvent->key()) {
  65           case Qt::Key_Delete:
  66             isAccepted = myOperationMgr->onProcessDelete(theObject);
  67           break;
  68           default:
  69             isAccepted = myOperationMgr->onKeyReleased(theObject, aKeyEvent);
  70             break;
  71         }
  72       }
  73     }
  74     if (!isAccepted)
  75       isAccepted = QObject::eventFilter(theObject, theEvent);
  76     return isAccepted;
  77   }
  78
  79 private:
  80   XGUI_OperationMgr* myOperationMgr; /// processor for key event
  81   bool myIsActive; /// boolean state whether the event filter perform own signal processing
  82 };
  83
  84 XGUI_OperationMgr::XGUI_OperationMgr(QObject* theParent,
  85                                      ModuleBase_IWorkshop* theWorkshop)
  86 : QObject(theParent), myWorkshop(theWorkshop)
  87 {
  88   /// we need to install filter to the application in order to react to 'Delete' key button
  89   /// this key can not be a short cut for a corresponded action because we need to set
  90   /// the actions priority
  91   myShortCutListener = new XGUI_ShortCutListener(theParent, this);
  92 }
  93
  94 XGUI_OperationMgr::~XGUI_OperationMgr()
  95 {
  96 }
  97
  98 void XGUI_OperationMgr::activate()
  99 {
 100   myShortCutListener->setActive(true);
 101 }
 102
 103 void XGUI_OperationMgr::deactivate()
 104 {
 105   myShortCutListener->setActive(false);
 106 }
 107
 108 ModuleBase_Operation* XGUI_OperationMgr::currentOperation() const
 109 {
 110   return myOperations.count() > 0 ? myOperations.last() : 0;
 111 }
 112
 113 bool XGUI_OperationMgr::isCurrentOperation(ModuleBase_Operation* theOperation)
 114 {
 115   if(!hasOperation())
 116     return false;
 117   return currentOperation() == theOperation;
 118 }
 119
 120 bool XGUI_OperationMgr::hasOperation() const
 121 {
 122   return !myOperations.isEmpty() && (myOperations.last() != NULL);
 123 }
 124
 125 bool XGUI_OperationMgr::hasOperation(const QString& theId) const
 126 {
 127   foreach(ModuleBase_Operation* aOp, myOperations) {
 128     if (aOp->id() == theId)
 129       return true;
 130   }
 131   return false;
 132 }
 133
 134 ModuleBase_Operation* XGUI_OperationMgr::findOperation(const QString& theId) const
 135 {
 136   QList<ModuleBase_Operation*>::const_iterator anIt = myOperations.end();
 137   while (anIt != myOperations.begin()) {
 138     --anIt;
 139     ModuleBase_Operation* anOperation = *anIt;
 140     if (anOperation->id() == theId)
 141       return anOperation;
 142   }
 143   return 0;
 144 }
 145
 146
 147 int XGUI_OperationMgr::operationsCount() const
 148 {
 149   return myOperations.count();
 150 }
 151
 152 QStringList XGUI_OperationMgr::operationList() const
 153 {
 154   QStringList result;
 155   foreach(ModuleBase_Operation* eachOperation, myOperations) {
 156     ModuleBase_OperationFeature* aFOperation =
 157       dynamic_cast<ModuleBase_OperationFeature*>(eachOperation);
 158     if (aFOperation) {
 159       FeaturePtr aFeature = aFOperation->feature();
 160       if(aFeature) {
 161         result << QString::fromStdString(aFeature->getKind());
 162       }
 163     }
 164   }
 165   return result;
 166 }
 167
 168 ModuleBase_Operation* XGUI_OperationMgr::previousOperation(ModuleBase_Operation* theOperation) const
 169 {
 170   int idx = myOperations.lastIndexOf(theOperation);
 171   if(idx == -1 || idx == 0) {
 172     return NULL;
 173   }
 174   return myOperations.at(idx - 1);
 175 }
 176
 177 bool XGUI_OperationMgr::startOperation(ModuleBase_Operation* theOperation)
 178 {
 179   if (hasOperation())
 180     currentOperation()->postpone();
 181   myOperations.append(theOperation);
 182
 183   connect(theOperation, SIGNAL(beforeStarted()), SLOT(onBeforeOperationStarted()));
 184   connect(theOperation, SIGNAL(beforeAborted()), SLOT(onBeforeOperationAborted()));
 185   connect(theOperation, SIGNAL(beforeCommitted()), SLOT(onBeforeOperationCommitted()));
 186
 187   connect(theOperation, SIGNAL(started()), SLOT(onOperationStarted()));
 188   connect(theOperation, SIGNAL(aborted()), SLOT(onOperationAborted()));
 189   connect(theOperation, SIGNAL(committed()), SLOT(onOperationCommitted()));
 190
 191   connect(theOperation, SIGNAL(stopped()), SLOT(onOperationStopped()));
 192   connect(theOperation, SIGNAL(resumed()), SLOT(onOperationResumed()));
 193
 194   bool isStarted = theOperation->start();
 195   if (isStarted)
 196     onValidateOperation();
 197   return isStarted;
 198 }
 199
 200 bool XGUI_OperationMgr::abortAllOperations()
 201 {
 202   bool aResult = true;
 203   if(!hasOperation())
 204     return aResult;
 205
 206   if (operationsCount() == 1) {
 207     ModuleBase_Operation* aCurrentOperation = currentOperation();
 208     if (canStopOperation(aCurrentOperation)) {
 209       abortOperation(aCurrentOperation);
 210     }
 211     else
 212       aResult = false;
 213   }
 214   else {
 215     aResult = QMessageBox::question(qApp->activeWindow(),
 216                                     tr("Abort operation"),
 217                                     tr("All active operations will be aborted."),
 218                                     QMessageBox::Ok | QMessageBox::Cancel,
 219                                     QMessageBox::Cancel) == QMessageBox::Ok;
 220     while(aResult && hasOperation()) {
 221       abortOperation(currentOperation());
 222     }
 223   }
 224   return aResult;
 225 }
 226
 227 bool XGUI_OperationMgr::commitAllOperations()
 228 {
 229   bool isCompositeCommitted = false, anOperationProcessed = false;
 230   while (hasOperation()) {
 231     ModuleBase_Operation* anOperation = currentOperation();
 232     if (XGUI_Tools::workshop(myWorkshop)->errorMgr()->isApplyEnabled()) {
 233       anOperationProcessed = onCommitOperation();
 234     } else {
 235       abortOperation(anOperation);
 236       anOperationProcessed = true;
 237     }
 238     ModuleBase_OperationFeature* aFOperation = dynamic_cast<ModuleBase_OperationFeature*>
 239                                                                             (anOperation);
 240     if (aFOperation) {
 241       FeaturePtr aFeature = aFOperation->feature();
 242       CompositeFeaturePtr aComposite =
 243           std::dynamic_pointer_cast<ModelAPI_CompositeFeature>(aFeature);
 244       isCompositeCommitted = aComposite.get();
 245       if (isCompositeCommitted)
 246         break;
 247     }
 248     // not processed[committed] operation might be used in composite feature,
 249     // so the while will be stopped by the previous check.
 250     // this code is not necessary, but logically should be done when the processing will not
 251     // be done for not composite feature by some reasons
 252     if (!anOperationProcessed)
 253       break;
 254   }
 255   return true;
 256 }
 257
 258 void XGUI_OperationMgr::onValidateOperation()
 259 {
 260   if (!hasOperation())
 261     return;
 262   ModuleBase_OperationFeature* aFOperation = dynamic_cast<ModuleBase_OperationFeature*>
 263                                                                           (currentOperation());
 264   if(aFOperation && aFOperation->feature().get())
 265     XGUI_Tools::workshop(myWorkshop)->errorMgr()->updateActions(aFOperation->feature());
 266 }
 267
 268 void XGUI_OperationMgr::updateApplyOfOperations(ModuleBase_Operation* theOperation)
 269 {
 270   XGUI_ErrorMgr* anErrorMgr = XGUI_Tools::workshop(myWorkshop)->errorMgr();
 271   if (theOperation) {
 272     ModuleBase_OperationFeature* aFOperation =
 273       dynamic_cast<ModuleBase_OperationFeature*>(theOperation);
 274     if (aFOperation)
 275       anErrorMgr->updateAcceptAllAction(aFOperation->feature());
 276   }
 277   else {
 278     foreach(ModuleBase_Operation* anOperation, myOperations) {
 279       if (anOperation)
 280         updateApplyOfOperations(anOperation);
 281     }
 282   }
 283   // Apply button of the current operation should also be updated
 284   onValidateOperation();
 285 }
 286
 287 bool XGUI_OperationMgr::canStopOperation(ModuleBase_Operation* theOperation)
 288 {
 289   //in case of nested (sketch) operation no confirmation needed
 290   if (isGrantedOperation(theOperation->id()))
 291     return true;
 292   if (theOperation && theOperation->isModified()) {
 293     QString aMessage = tr("%1 operation will be aborted.").arg(theOperation->id());
 294     int anAnswer = QMessageBox::question(qApp->activeWindow(),
 295                                          tr("Abort operation"),
 296                                          aMessage,
 297                                          QMessageBox::Ok | QMessageBox::Cancel,
 298                                          QMessageBox::Cancel);
 299     return anAnswer == QMessageBox::Ok;
 300   }
 301   return true;
 302 }
 303
 304 bool XGUI_OperationMgr::commitOperation()
 305 {
 306   //if (hasOperation() && currentOperation()->isValid()) {
 307   //  onCommitOperation();
 308   //  return true;
 309   //}
 310   //return false;
 311   return onCommitOperation();
 312 }
 313
 314 void XGUI_OperationMgr::resumeOperation(ModuleBase_Operation* theOperation)
 315 {
 316   theOperation->resume();
 317 }
 318
 319 bool XGUI_OperationMgr::isGrantedOperation(const QString& theId)
 320 {
 321   bool isGranted = false;
 322
 323   QListIterator<ModuleBase_Operation*> anIt(myOperations);
 324   anIt.toBack();
 325   ModuleBase_Operation* aPreviousOperation = 0;
 326   while (anIt.hasPrevious() && !isGranted) {
 327     ModuleBase_Operation* anOp = anIt.previous();
 328     if (anOp)
 329       isGranted = anOp->isGranted(theId);
 330   }
 331   return isGranted;
 332 }
 333
 334 void XGUI_OperationMgr::setCurrentFeature(const FeaturePtr& theFeature)
 335 {
 336   SessionPtr aMgr = ModelAPI_Session::get();
 337   DocumentPtr aDoc = aMgr->activeDocument();
 338   bool aIsOp = aMgr->isOperation();
 339   if (!aIsOp)
 340     aMgr->startOperation(QString("Set current feature: %1")
 341     .arg(theFeature->getKind().c_str()).toStdString());
 342   aDoc->setCurrentFeature(theFeature, false);
 343 #ifdef DEBUG_CURRENT_FEATURE
 344   qDebug(QString("   document->setCurrentFeature(false) = %1    SET").arg(
 345          ModuleBase_Tools::objectName(
 346          ModelAPI_Session::get()->activeDocument()->currentFeature(false))).toStdString().c_str());
 347 #endif
 348
 349   if (!aIsOp)
 350     aMgr->finishOperation();
 351 }
 352
 353 bool XGUI_OperationMgr::canStartOperation(const QString& theId, bool& isCommitted)
 354 {
 355   bool aCanStart = true;
 356   isCommitted = false;
 357   ModuleBase_Operation* aCurrentOp = currentOperation();
 358   if (aCurrentOp) {
 359     bool aGranted = aCurrentOp->isGranted(theId);
 360     // the started operation is granted for the current one,
 361     // e.g. current - Sketch, started - Line
 362     if (aGranted) {
 363       aCanStart = true;
 364     }
 365     else {
 366       if (!isGrantedOperation(theId)) {
 367         // the operation is not granted in the current list of operations
 368         // e.g. Edit Parameter when Sketch, Line in Sketch is active.
 369         aCanStart = abortAllOperations();
 370       }
 371       else if (canStopOperation(aCurrentOp)) {
 372         // the started operation is granted in the parrent operation,
 373         // e.g. current - Line in Sketch, started Circle
 374         stopOperation(aCurrentOp, isCommitted);
 375       } else {
 376         aCanStart = false;
 377       }
 378     }
 379   }
 380   return aCanStart;
 381 }
 382
 383 void XGUI_OperationMgr::stopOperation(ModuleBase_Operation* theOperation, bool& isCommitted)
 384 {
 385   if (XGUI_Tools::workshop(myWorkshop)->errorMgr()->isApplyEnabled() && theOperation->isModified())
 386     isCommitted = theOperation->commit();
 387   else {
 388     isCommitted = false;
 389     abortOperation(theOperation);
 390   }
 391 }
 392
 393 void XGUI_OperationMgr::abortOperation(ModuleBase_Operation* theOperation)
 394 {
 395   ModuleBase_Operation* aCurrentOperation = currentOperation();
 396   if (theOperation == aCurrentOperation)
 397     theOperation->abort();
 398   else {
 399     // it is possible to trigger upper operation(e.g. sketch, current is sketch line)
 400     // all operation from the current to triggered should also be aborted
 401     // operations over the parameter one are not aborted(e.g. extrusion cut, sketch abort)
 402     while(hasOperation()) {
 403       ModuleBase_Operation* aCurrentOperation = currentOperation();
 404       aCurrentOperation->abort();
 405       if(theOperation == aCurrentOperation)
 406         break;
 407     }
 408   }
 409 }
 410
 411 bool XGUI_OperationMgr::onCommitOperation()
 412 {
 413   bool isCommitted = false;
 414   ModuleBase_Operation* anOperation = currentOperation();
 415   if (anOperation && myWorkshop->module()->canCommitOperation())
 416     isCommitted = anOperation->commit();
 417   return isCommitted;
 418 }
 419
 420 void XGUI_OperationMgr::onAbortOperation()
 421 {
 422   ModuleBase_Operation* aCurrentOperation = currentOperation();
 423   if (aCurrentOperation && canStopOperation(aCurrentOperation)) {
 424     abortOperation(aCurrentOperation);
 425   }
 426 }
 427
 428 void XGUI_OperationMgr::onBeforeOperationStarted()
 429 {
 430   ModuleBase_Operation* aCurrentOperation = dynamic_cast<ModuleBase_Operation*>(sender());
 431   if (!aCurrentOperation)
 432     return;
 433
 434   /// Set current feature and remeber old current feature
 435   ModuleBase_OperationFeature* aFOperation =
 436     dynamic_cast<ModuleBase_OperationFeature*>(aCurrentOperation);
 437   if (aFOperation) {
 438     SessionPtr aMgr = ModelAPI_Session::get();
 439     DocumentPtr aDoc = aMgr->activeDocument();
 440     // the parameter of current feature should be false, we should use all feature, not only
 441     // visible in order to correctly save the previous feature of the nested operation, where the
 442     // features can be not visible in the tree. The problem case is Edit sketch entitity(line)
 443     // in the Sketch, created in ExtrusionCut operation. The entity disappears by commit.
 444     // When sketch entity operation started, the sketch should be cashed here as the current.
 445     // Otherwise(the flag is true), the ExtrusionCut is cashed, when commit happens, the sketch
 446     // is disabled, sketch entity is disabled as extrusion cut is created earliest then sketch.
 447     // As a result the sketch disappears from the viewer.
 448     // However after commit it is displayed back.
 449     aFOperation->setPreviousCurrentFeature(aDoc->currentFeature(false));
 450
 451 #ifdef DEBUG_CURRENT_FEATURE
 452     FeaturePtr aFeature = aFOperation->feature();
 453     QString aKind = aFeature ? aFeature->getKind().c_str() : "";
 454     qDebug("");
 455     qDebug(QString("onBeforeOperationStarted() isEditOperation = %1, feature = %2")
 456             .arg(aFOperation->isEditOperation())
 457             .arg(ModuleBase_Tools::objectName(aFeature)).toStdString().c_str());
 458     qDebug(QString("   document->currentFeature(false) = %1 : DO: setPreviousCurrentFeature").arg(
 459             ModuleBase_Tools::objectName(aDoc->currentFeature(false))).toStdString().c_str());
 460 #endif
 461
 462     if (aFOperation->isEditOperation()) {// it should be performed by the feature edit only
 463       // in create operation, the current feature is changed by addFeature()
 464       aDoc->setCurrentFeature(aFOperation->feature(), false);
 465 #ifdef DEBUG_CURRENT_FEATURE
 466       qDebug(QString("   document->setCurrentFeature(false) = %1").arg(
 467              ModuleBase_Tools::objectName(aDoc->currentFeature(false))).toStdString().c_str());
 468 #endif
 469       // this is the only place where flushes must be called after setCurrentFeature for the
 470       // current moment: after this the opertion is not finished, so, the ObjectBrowser
 471       // state may be corrupted (issue #1457)
 472       static Events_Loop* aLoop = Events_Loop::loop();
 473       static Events_ID aCreateEvent = aLoop->eventByName(EVENT_OBJECT_CREATED);
 474       aLoop->flush(aCreateEvent);
 475       static Events_ID aDeleteEvent = aLoop->eventByName(EVENT_OBJECT_DELETED);
 476       aLoop->flush(aDeleteEvent);
 477     }
 478   }
 479 }
 480
 481 void XGUI_OperationMgr::onOperationStarted()
 482 {
 483   ModuleBase_Operation* aSenderOperation = dynamic_cast<ModuleBase_Operation*>(sender());
 484   updateApplyOfOperations(aSenderOperation);
 485   XGUI_Workshop* aWorkshop = XGUI_Tools::workshop(myWorkshop);
 486   aWorkshop->operationStarted(aSenderOperation);
 487 }
 488
 489 void XGUI_OperationMgr::onBeforeOperationAborted()
 490 {
 491   onBeforeOperationCommitted();
 492 }
 493
 494 void XGUI_OperationMgr::onOperationAborted()
 495 {
 496   ModuleBase_Operation* aSenderOperation = dynamic_cast<ModuleBase_Operation*>(sender());
 497   emit operationAborted(aSenderOperation);
 498 }
 499
 500 void XGUI_OperationMgr::onBeforeOperationCommitted()
 501 {
 502   ModuleBase_Operation* aCurrentOperation = dynamic_cast<ModuleBase_Operation*>(sender());
 503   if (!aCurrentOperation)
 504     return;
 505
 506   /// Restore the previous current feature
 507   ModuleBase_OperationFeature* aFOperation =
 508     dynamic_cast<ModuleBase_OperationFeature*>(aCurrentOperation);
 509   if (aFOperation) {
 510 #ifdef DEBUG_CURRENT_FEATURE
 511     QString aKind = aFOperation->feature()->getKind().c_str();
 512     qDebug(QString("onBeforeOperationCommitted() isEditOperation = %1, feature = %2")
 513             .arg(aFOperation->isEditOperation())
 514             .arg(ModuleBase_Tools::objectName(aFOperation->feature())).toStdString().c_str());
 515     qDebug(QString("   document->currentFeature(false) = %1").arg(
 516             ModuleBase_Tools::objectName(
 517             ModelAPI_Session::get()->activeDocument()->currentFeature(false)))
 518             .toStdString().c_str());
 519 #endif
 520
 521     if (aFOperation->isEditOperation()) {
 522       /// Restore the previous current feature
 523       setCurrentFeature(aFOperation->previousCurrentFeature());
 524     }
 525     else { // create operation
 526       // the Top created feature should stays the current. In nested operations,
 527       // like Line in the Sketch or
 528       // Sketch in ExtrusionCut, a previous feature should be restored on commit.
 529       // It is performed here
 530       // in order to perform it in the current transaction without opening a new one.
 531       if (myOperations.front() != aFOperation)
 532         setCurrentFeature(aFOperation->previousCurrentFeature());
 533     }
 534     ModuleBase_IModule* aModule = myWorkshop->module();
 535     if (aModule)
 536       aModule->beforeOperationStopped(aFOperation);
 537   }
 538 }
 539
 540 void XGUI_OperationMgr::onOperationCommitted()
 541 {
 542   // apply state for all features from the stack of operations should be updated
 543   updateApplyOfOperations();
 544
 545   ModuleBase_Operation* aSenderOperation = dynamic_cast<ModuleBase_Operation*>(sender());
 546   emit operationCommitted(aSenderOperation);
 547 }
 548
 549 void XGUI_OperationMgr::onOperationResumed()
 550 {
 551   ModuleBase_Operation* aSenderOperation = dynamic_cast<ModuleBase_Operation*>(sender());
 552   emit operationResumed(aSenderOperation);
 553 }
 554
 555 void XGUI_OperationMgr::onOperationStopped()
 556 {
 557   ModuleBase_Operation* aSenderOperation = dynamic_cast<ModuleBase_Operation*>(sender());
 558   ModuleBase_Operation* aCurrentOperation = currentOperation();
 559   if (!aSenderOperation || !aCurrentOperation || aSenderOperation != aCurrentOperation)
 560     return;
 561
 562   myOperations.removeAll(aCurrentOperation);
 563   aCurrentOperation->deleteLater();
 564
 565   emit operationStopped(aCurrentOperation);
 566
 567   // get last operation which can be resumed
 568   ModuleBase_Operation* aResultOp = 0;
 569   QListIterator<ModuleBase_Operation*> anIt(myOperations);
 570   anIt.toBack();
 571   while (anIt.hasPrevious()) {
 572     ModuleBase_Operation* anOp = anIt.previous();
 573     if (anOp) {
 574       aResultOp = anOp;
 575       break;
 576     }
 577   }
 578   if (aResultOp) {
 579     bool isModified = aCurrentOperation->isModified();
 580     aResultOp->setIsModified(aResultOp->isModified() || isModified);
 581     resumeOperation(aResultOp);
 582     onValidateOperation();
 583   }
 584 }
 585
 586 bool XGUI_OperationMgr::onKeyReleased(QObject *theObject, QKeyEvent* theEvent)
 587 {
 588   // Let the manager decide what to do with the given key combination.
 589   ModuleBase_Operation* anOperation = currentOperation();
 590   bool isAccepted = false;
 591   switch (theEvent->key()) {
 592     case Qt::Key_Escape: {
 593       ModuleBase_Operation* aOperation = currentOperation();
 594       if (aOperation) {
 595         onAbortOperation();
 596         isAccepted = true;
 597       }
 598     }
 599     break;
 600     case Qt::Key_Tab:
 601     case Qt::Key_Backtab:
 602     {
 603       ModuleBase_Operation* aOperation = currentOperation();
 604       if (aOperation) {
 605         ModuleBase_IPropertyPanel* aPanel = anOperation->propertyPanel();
 606         if (aPanel) {
 607           QWidget* aFocusedWidget = qApp->focusWidget();
 608           bool isPPChildObject = aFocusedWidget && isChildObject(aFocusedWidget, aPanel);
 609           if (!isPPChildObject) {
 610             // check for case when the operation is started but property panel is not filled
 611             XGUI_PropertyPanel* aPP = dynamic_cast<XGUI_PropertyPanel*>(aPanel);
 612             aPP->setFocusNextPrevChild(theEvent->key() == Qt::Key_Tab);
 613             isAccepted = true;
 614           }
 615         }
 616       }
 617     }
 618     break;
 619     case Qt::Key_Return:
 620     case Qt::Key_Enter: {
 621       isAccepted = onProcessEnter(theObject);
 622     }
 623     break;
 624     case Qt::Key_N:
 625     case Qt::Key_P: {
 626       bool noModifiers = (theEvent->modifiers() == Qt::NoModifier);
 627       if (noModifiers) {
 628         ModuleBase_IViewer* aViewer = myWorkshop->viewer();
 629         Handle(AIS_InteractiveContext) aContext = aViewer->AISContext();
 630         if (!aContext.IsNull()) {
 631           Handle(V3d_View) aView = aViewer->activeView();
 632           if ((theEvent->key() == Qt::Key_N))
 633             aContext->HilightNextDetected(aView);
 634           else if ((theEvent->key() == Qt::Key_P))
 635             aContext->HilightPreviousDetected(aView);
 636         }
 637       }
 638     }
 639     break;
 640     break;
 641     default:
 642       isAccepted = false;
 643       break;
 644   }
 645   //if(anOperation) {
 646   //  anOperation->keyReleased(theEvent->key());
 647   //}
 648   return isAccepted;
 649 }
 650
 651 bool XGUI_OperationMgr::onProcessEnter(QObject* theObject)
 652 {
 653   bool isAccepted = false;
 654   ModuleBase_Operation* aOperation = currentOperation();
 655   // to avoid enter processing when operation has not been started yet
 656   if (!aOperation)
 657     return isAccepted;
 658   ModuleBase_IPropertyPanel* aPanel = aOperation->propertyPanel();
 659   // the next code is obsolete as we want to process Enter in property panel always
 660   // only property panel enter is processed in order to do not process enter in application dialogs
 661   //bool isPPChild = isChildObject(theObject, aPanel);
 662   //if (!isPPChild)
 663   //  return isAccepted;
 664
 665   ModuleBase_ModelWidget* anActiveWgt = aPanel->activeWidget();
 666   bool isAborted = false;
 667   if (!anActiveWgt) {
 668     QWidget* aFocusWidget = aPanel->focusWidget();
 669     QToolButton* aCancelBtn =
 670       dynamic_cast<XGUI_PropertyPanel*>(aPanel)->findButton(PROP_PANEL_CANCEL);
 671     if (aFocusWidget && aCancelBtn && aFocusWidget == aCancelBtn) {
 672       abortOperation(aOperation);
 673       isAccepted = true;
 674       isAborted = true;
 675     }
 676   }
 677   if (!isAborted) {
 678     isAccepted = anActiveWgt && anActiveWgt->processEnter();
 679     if (!isAccepted) {
 680       isAccepted =
 681         myWorkshop->module()->processEnter(anActiveWgt ? anActiveWgt->attributeID() : "");
 682       if (!isAccepted) {
 683         /// functionality is similar to Apply click
 684         ModuleBase_OperationFeature* aFOperation =
 685           dynamic_cast<ModuleBase_OperationFeature*>(currentOperation());
 686         if (!aFOperation ||
 687             myWorkshop->module()->getFeatureError(aFOperation->feature()).isEmpty()) {
 688           // key released is emitted to apply the current value to the model
 689           // if it was modified in PP
 690           emit keyEnterReleased();
 691           commitOperation();
 692           isAccepted = true;
 693         }
 694         else
 695           isAccepted = false;
 696       }
 697     }
 698   }
 699   return isAccepted;
 700 }
 701
 702 bool editorControl(QObject* theObject)
 703 {
 704   QLineEdit* aLineEdit = dynamic_cast<QLineEdit*>(theObject);
 705   return aLineEdit;
 706 }
 707
 708 bool XGUI_OperationMgr::onProcessDelete(QObject* theObject)
 709 {
 710   bool isAccepted = false;
 711   ModuleBase_Operation* aOperation = currentOperation();
 712   ModuleBase_ModelWidget* anActiveWgt = 0;
 713   // firstly the widget should process Delete action
 714   ModuleBase_IPropertyPanel* aPanel;
 715   bool isPPChildObject = false;
 716   if (aOperation) {
 717     aPanel = aOperation->propertyPanel();
 718     if (aPanel) {
 719       isPPChildObject = isChildObject(theObject, aPanel);
 720       // process delete in active widget only if delete sender is child of property panel
 721       // it is necessary for the case when OB is shown, user perform selection and click Delete
 722       if (isPPChildObject) {
 723         anActiveWgt = aPanel->activeWidget();
 724         if (anActiveWgt) {
 725           isAccepted = anActiveWgt->processDelete();
 726         }
 727       }
 728     }
 729   }
 730   if (!isAccepted) {
 731     // after widget, object browser and viewer should process delete
 732     /// other widgets such as line edit controls should not lead to
 733     /// processing delete by workshop
 734     XGUI_ObjectsBrowser* aBrowser = XGUI_Tools::workshop(myWorkshop)->objectBrowser();
 735     QWidget* aViewPort = myWorkshop->viewer()->activeViewPort();
 736     bool isToDeleteObject = false;
 737     XGUI_Workshop* aWorkshop = XGUI_Tools::workshop(myWorkshop);
 738     XGUI_ContextMenuMgr* aContextMenuMgr = aWorkshop->contextMenuMgr();
 739     if (theObject == aBrowser->treeView()) {
 740       aContextMenuMgr->updateObjectBrowserMenu();
 741       isToDeleteObject = aContextMenuMgr->action("DELETE_CMD")->isEnabled();
 742     }
 743     else if (isChildObject(theObject, aViewPort)) {
 744       aContextMenuMgr->updateViewerMenu();
 745       isToDeleteObject = aContextMenuMgr->action("DELETE_CMD")->isEnabled();
 746     }
 747     else if (isPPChildObject) {
 748       // property panel child object is processed to process delete performed on Apply button of PP
 749       isToDeleteObject = true;
 750     }
 751     else if (editorControl(theObject)) {
 752       isToDeleteObject = false; /// Line Edit of Rename operation in ObjectBrowser
 753       isAccepted = true;
 754     }
 755
 756     if (isToDeleteObject) {
 757       aWorkshop->deleteObjects();
 758       isAccepted = true;
 759     }
 760   }
 761
 762   return isAccepted;
 763 }
 764
 765 bool XGUI_OperationMgr::isChildObject(const QObject* theObject, const QObject* theParent)
 766 {
 767   bool isPPChild = false;
 768   if (theParent && theObject) {
 769     QObject* aParent = (QObject*)theObject;
 770     while (aParent ) {
 771       isPPChild = aParent == theParent;
 772       if (isPPChild)
 773         break;
 774       aParent = aParent->parent();
 775     }
 776   }
 777   return isPPChild;
 778 }