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