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         stopOperation(aCurrentOp);
 372       } else {
 373         aCanStart = false;
 374       }
 375     }
 376   }
 377   return aCanStart;
 378 }
 379
 380 void XGUI_OperationMgr::stopOperation(ModuleBase_Operation* theOperation)
 381 {
 382   if (XGUI_Tools::workshop(myWorkshop)->errorMgr()->isApplyEnabled() && theOperation->isModified())
 383     theOperation->commit();
 384   else
 385     abortOperation(theOperation);
 386 }
 387
 388 void XGUI_OperationMgr::abortOperation(ModuleBase_Operation* theOperation)
 389 {
 390   ModuleBase_Operation* aCurrentOperation = currentOperation();
 391   if (theOperation == aCurrentOperation)
 392     theOperation->abort();
 393   else {
 394     // it is possible to trigger upper operation(e.g. sketch, current is sketch line)
 395     // all operation from the current to triggered should also be aborted
 396     // operations over the parameter one are not aborted(e.g. extrusion cut, sketch abort)
 397     while(hasOperation()) {
 398       ModuleBase_Operation* aCurrentOperation = currentOperation();
 399       aCurrentOperation->abort();
 400       if(theOperation == aCurrentOperation)
 401         break;
 402     }
 403   }
 404 }
 405
 406 bool XGUI_OperationMgr::onCommitOperation()
 407 {
 408   bool isCommitted = false;
 409   ModuleBase_Operation* anOperation = currentOperation();
 410   if (anOperation && myWorkshop->module()->canCommitOperation())
 411     isCommitted = anOperation->commit();
 412   return isCommitted;
 413 }
 414
 415 void XGUI_OperationMgr::onAbortOperation()
 416 {
 417   ModuleBase_Operation* aCurrentOperation = currentOperation();
 418   if (aCurrentOperation && canStopOperation(aCurrentOperation)) {
 419     abortOperation(aCurrentOperation);
 420   }
 421 }
 422
 423 void XGUI_OperationMgr::onBeforeOperationStarted()
 424 {
 425   ModuleBase_Operation* aCurrentOperation = dynamic_cast<ModuleBase_Operation*>(sender());
 426   if (!aCurrentOperation)
 427     return;
 428
 429   /// Set current feature and remeber old current feature
 430   ModuleBase_OperationFeature* aFOperation = dynamic_cast<ModuleBase_OperationFeature*>(aCurrentOperation);
 431   if (aFOperation) {
 432     SessionPtr aMgr = ModelAPI_Session::get();
 433     DocumentPtr aDoc = aMgr->activeDocument();
 434     // the parameter of current feature should be false, we should use all feature, not only visible
 435     // in order to correctly save the previous feature of the nested operation, where the
 436     // features can be not visible in the tree. The problem case is Edit sketch entitity(line)
 437     // in the Sketch, created in ExtrusionCut operation. The entity disappears by commit.
 438     // When sketch entity operation started, the sketch should be cashed here as the current.
 439     // Otherwise(the flag is true), the ExtrusionCut is cashed, when commit happens, the sketch
 440     // is disabled, sketch entity is disabled as extrusion cut is created earliest then sketch.
 441     // As a result the sketch disappears from the viewer. However after commit it is displayed back.
 442     aFOperation->setPreviousCurrentFeature(aDoc->currentFeature(false));
 443
 444 #ifdef DEBUG_CURRENT_FEATURE
 445     FeaturePtr aFeature = aFOperation->feature();
 446     QString aKind = aFeature ? aFeature->getKind().c_str() : "";
 447     qDebug(QString("onBeforeOperationStarted(), edit operation = %1, feature = %2")
 448             .arg(aFOperation->isEditOperation())
 449             .arg(ModuleBase_Tools::objectInfo(aFeature)).toStdString().c_str());
 450
 451     qDebug(QString("\tdocument->currentFeature(false) = %1").arg(
 452             ModuleBase_Tools::objectInfo(ModelAPI_Session::get()->activeDocument()->currentFeature(false))).toStdString().c_str());
 453 #endif
 454
 455     if (aFOperation->isEditOperation()) {// it should be performed by the feature edit only
 456       // in create operation, the current feature is changed by addFeature()
 457       aDoc->setCurrentFeature(aFOperation->feature(), false);
 458       // this is the only place where flushes must be called after setCurrentFeature for the current
 459       // moment: after this the opertion is not finished, so, the ObjectBrowser state may be corrupted
 460       // (issue #1457)
 461       static Events_Loop* aLoop = Events_Loop::loop();
 462       static Events_ID aCreateEvent = aLoop->eventByName(EVENT_OBJECT_CREATED);
 463       aLoop->flush(aCreateEvent);
 464       static Events_ID aDeleteEvent = aLoop->eventByName(EVENT_OBJECT_DELETED);
 465       aLoop->flush(aDeleteEvent);
 466     }
 467
 468 #ifdef DEBUG_CURRENT_FEATURE
 469     qDebug("\tdocument->setCurrentFeature");
 470     qDebug(QString("\tdocument->currentFeature(false) = %1").arg(
 471             ModuleBase_Tools::objectInfo(ModelAPI_Session::get()->activeDocument()->currentFeature(false))).toStdString().c_str());
 472 #endif
 473   }
 474 }
 475
 476 void XGUI_OperationMgr::onOperationStarted()
 477 {
 478   ModuleBase_Operation* aSenderOperation = dynamic_cast<ModuleBase_Operation*>(sender());
 479   updateApplyOfOperations(aSenderOperation);
 480   XGUI_Workshop* aWorkshop = XGUI_Tools::workshop(myWorkshop);
 481   aWorkshop->operationStarted(aSenderOperation);
 482 }
 483
 484 void XGUI_OperationMgr::onBeforeOperationAborted()
 485 {
 486   onBeforeOperationCommitted();
 487 }
 488
 489 void XGUI_OperationMgr::onOperationAborted()
 490 {
 491   ModuleBase_Operation* aSenderOperation = dynamic_cast<ModuleBase_Operation*>(sender());
 492   emit operationAborted(aSenderOperation);
 493 }
 494
 495 void XGUI_OperationMgr::onBeforeOperationCommitted()
 496 {
 497   ModuleBase_Operation* aCurrentOperation = dynamic_cast<ModuleBase_Operation*>(sender());
 498   if (!aCurrentOperation)
 499     return;
 500
 501   /// Restore the previous current feature
 502   ModuleBase_OperationFeature* aFOperation = dynamic_cast<ModuleBase_OperationFeature*>(aCurrentOperation);
 503   if (aFOperation) {
 504 #ifdef DEBUG_CURRENT_FEATURE
 505     QString aKind = aFOperation->feature()->getKind().c_str();
 506     qDebug(QString("onBeforeOperationCommitted(), edit operation = %1, feature = %2")
 507             .arg(aFOperation->isEditOperation())
 508             .arg(ModuleBase_Tools::objectInfo(aFOperation->feature())).toStdString().c_str());
 509
 510     qDebug(QString("\tdocument->currentFeature(false) = %1").arg(
 511             ModuleBase_Tools::objectInfo(ModelAPI_Session::get()->activeDocument()->currentFeature(false))).toStdString().c_str());
 512 #endif
 513
 514     if (aFOperation->isEditOperation()) {
 515       /// Restore the previous current feature
 516       setCurrentFeature(aFOperation->previousCurrentFeature());
 517     }
 518     else { // create operation
 519       // the Top created feature should stays the current. In nested operations, like Line in the Sketch or
 520       // Sketch in ExtrusionCut, a previous feature should be restored on commit. It is performed here
 521       // in order to perform it in the current transaction without opening a new one.
 522       if (myOperations.front() != aFOperation)
 523         setCurrentFeature(aFOperation->previousCurrentFeature());
 524     }
 525 #ifdef DEBUG_CURRENT_FEATURE
 526     qDebug("\tdocument->setCurrentFeature");
 527     qDebug(QString("\tdocument->currentFeature(false) = %1").arg(
 528             ModuleBase_Tools::objectInfo(ModelAPI_Session::get()->activeDocument()->currentFeature(false))).toStdString().c_str());
 529 #endif
 530     ModuleBase_IModule* aModule = myWorkshop->module();
 531     if (aModule)
 532       aModule->beforeOperationStopped(aFOperation);
 533   }
 534 }
 535
 536 void XGUI_OperationMgr::onOperationCommitted()
 537 {
 538   // apply state for all features from the stack of operations should be updated
 539   updateApplyOfOperations();
 540
 541   ModuleBase_Operation* aSenderOperation = dynamic_cast<ModuleBase_Operation*>(sender());
 542   emit operationCommitted(aSenderOperation);
 543 }
 544
 545 void XGUI_OperationMgr::onOperationResumed()
 546 {
 547   ModuleBase_Operation* aSenderOperation = dynamic_cast<ModuleBase_Operation*>(sender());
 548   emit operationResumed(aSenderOperation);
 549 }
 550
 551 void XGUI_OperationMgr::onOperationStopped()
 552 {
 553   ModuleBase_Operation* aSenderOperation = dynamic_cast<ModuleBase_Operation*>(sender());
 554   ModuleBase_Operation* aCurrentOperation = currentOperation();
 555   if (!aSenderOperation || !aCurrentOperation || aSenderOperation != aCurrentOperation)
 556     return;
 557
 558   myOperations.removeAll(aCurrentOperation);
 559   aCurrentOperation->deleteLater();
 560
 561   emit operationStopped(aCurrentOperation);
 562
 563   // get last operation which can be resumed
 564   ModuleBase_Operation* aResultOp = 0;
 565   QListIterator<ModuleBase_Operation*> anIt(myOperations);
 566   anIt.toBack();
 567   while (anIt.hasPrevious()) {
 568     ModuleBase_Operation* anOp = anIt.previous();
 569     if (anOp) {
 570       aResultOp = anOp;
 571       break;
 572     }
 573   }
 574   if (aResultOp) {
 575     bool isModified = aCurrentOperation->isModified();
 576     aResultOp->setIsModified(aResultOp->isModified() || isModified);
 577     resumeOperation(aResultOp);
 578     onValidateOperation();
 579   }
 580 }
 581
 582 bool XGUI_OperationMgr::onKeyReleased(QObject *theObject, QKeyEvent* theEvent)
 583 {
 584   // Let the manager decide what to do with the given key combination.
 585   ModuleBase_Operation* anOperation = currentOperation();
 586   bool isAccepted = false;
 587   switch (theEvent->key()) {
 588     case Qt::Key_Return:
 589     case Qt::Key_Enter: {
 590       isAccepted = onProcessEnter(theObject);
 591     }
 592     break;
 593     case Qt::Key_N:
 594     case Qt::Key_P: {
 595       bool noModifiers = (theEvent->modifiers() == Qt::NoModifier);
 596       if (noModifiers) {
 597         ModuleBase_IViewer* aViewer = myWorkshop->viewer();
 598         Handle(AIS_InteractiveContext) aContext = aViewer->AISContext();
 599         if (!aContext.IsNull()) {
 600           Handle(V3d_View) aView = aViewer->activeView();
 601           if ((theEvent->key() == Qt::Key_N))
 602             aContext->HilightNextDetected(aView);
 603           else if ((theEvent->key() == Qt::Key_P))
 604             aContext->HilightPreviousDetected(aView);
 605         }
 606       }
 607     }
 608     break;
 609     break;
 610     default:
 611       isAccepted = false;
 612       break;
 613   }
 614   //if(anOperation) {
 615   //  anOperation->keyReleased(theEvent->key());
 616   //}
 617   return isAccepted;
 618 }
 619
 620 bool XGUI_OperationMgr::onProcessEnter(QObject* theObject)
 621 {
 622   bool isAccepted = false;
 623   ModuleBase_Operation* aOperation = currentOperation();
 624   // to avoid enter processing when operation has not been started yet
 625   if (!aOperation)
 626     return isAccepted;
 627   ModuleBase_IPropertyPanel* aPanel = aOperation->propertyPanel();
 628   // only property panel enter is processed in order to do not process enter in application dialogs
 629   bool isPPChild = isChildObject(theObject, aPanel);
 630   if (!isPPChild)
 631     return isAccepted;
 632
 633   ModuleBase_ModelWidget* anActiveWgt = aPanel->activeWidget();
 634   bool isAborted = false;
 635   if (!anActiveWgt) {
 636     QWidget* aFocusWidget = aPanel->focusWidget();
 637     QToolButton* aCancelBtn = dynamic_cast<XGUI_PropertyPanel*>(aPanel)->findButton(PROP_PANEL_CANCEL);
 638     if (aFocusWidget && aCancelBtn && aFocusWidget == aCancelBtn) {
 639       abortOperation(aOperation);
 640       isAccepted = true;
 641       isAborted = true;
 642     }
 643   }
 644   if (!isAborted) {
 645     isAccepted = anActiveWgt && anActiveWgt->processEnter();
 646     if (!isAccepted) {
 647       isAccepted = myWorkshop->module()->processEnter(anActiveWgt ? anActiveWgt->attributeID() : "");
 648       if (!isAccepted) {
 649         /// functionality is similar to Apply click
 650         ModuleBase_OperationFeature* aFOperation = dynamic_cast<ModuleBase_OperationFeature*>(currentOperation());
 651         if (!aFOperation || myWorkshop->module()->getFeatureError(aFOperation->feature()).isEmpty()) {
 652           // key released is emitted to apply the current value to the model if it was modified in PP
 653           emit keyEnterReleased();
 654           commitOperation();
 655           isAccepted = true;
 656         }
 657         else
 658           isAccepted = false;
 659       }
 660     }
 661   }
 662   return isAccepted;
 663 }
 664
 665 bool XGUI_OperationMgr::onProcessDelete(QObject* theObject)
 666 {
 667   bool isAccepted = false;
 668   ModuleBase_Operation* aOperation = currentOperation();
 669   ModuleBase_ModelWidget* anActiveWgt = 0;
 670   // firstly the widget should process Delete action
 671   ModuleBase_IPropertyPanel* aPanel;
 672   bool isPPChildObject = false;
 673   if (aOperation) {
 674     aPanel = aOperation->propertyPanel();
 675     if (aPanel) {
 676       isPPChildObject = isChildObject(theObject, aPanel);
 677       // process delete in active widget only if delete sender is child of property panel
 678       // it is necessary for the case when OB is shown, user perform selection and click Delete
 679       if (isPPChildObject) {
 680         anActiveWgt = aPanel->activeWidget();
 681         if (anActiveWgt) {
 682           isAccepted = anActiveWgt->processDelete();
 683         }
 684       }
 685     }
 686   }
 687   if (!isAccepted) {
 688     // after widget, object browser and viewer should process delete
 689     /// other widgets such as line edit controls should not lead to
 690     /// processing delete by workshop
 691     XGUI_ObjectsBrowser* aBrowser = XGUI_Tools::workshop(myWorkshop)->objectBrowser();
 692     QWidget* aViewPort = myWorkshop->viewer()->activeViewPort();
 693     bool isToDeleteObject = false;
 694     XGUI_Workshop* aWorkshop = XGUI_Tools::workshop(myWorkshop);
 695     XGUI_ContextMenuMgr* aContextMenuMgr = aWorkshop->contextMenuMgr();
 696     if (theObject == aBrowser->treeView()) {
 697       aContextMenuMgr->updateObjectBrowserMenu();
 698       isToDeleteObject = aContextMenuMgr->action("DELETE_CMD")->isEnabled();
 699     }
 700     else if (isChildObject(theObject, aViewPort)) {
 701       aContextMenuMgr->updateViewerMenu();
 702       isToDeleteObject = aContextMenuMgr->action("DELETE_CMD")->isEnabled();
 703     }
 704     else if (isPPChildObject) {
 705       // property panel child object is processed to process delete performed on Apply button of PP
 706       isToDeleteObject = true;
 707     }
 708     if (isToDeleteObject) {
 709       aWorkshop->deleteObjects();
 710       isAccepted = true;
 711     }
 712   }
 713
 714   return isAccepted;
 715 }
 716
 717 bool XGUI_OperationMgr::isChildObject(const QObject* theObject, const QObject* theParent)
 718 {
 719   bool isPPChild = false;
 720   if (theParent && theObject) {
 721     QObject* aParent = (QObject*)theObject;
 722     while (aParent ) {
 723       isPPChild = aParent == theParent;
 724       if (isPPChild)
 725         break;
 726       aParent = aParent->parent();
 727     }
 728   }
 729   return isPPChild;
 730 }