src/XGUI/XGUI_OperationMgr.cpp

   1 // Copyright (C) 2014-2017  CEA/DEN, EDF R&D
   2 //
   3 // This library is free software; you can redistribute it and/or
   4 // modify it under the terms of the GNU Lesser General Public
   5 // License as published by the Free Software Foundation; either
   6 // version 2.1 of the License, or (at your option) any later version.
   7 //
   8 // This library is distributed in the hope that it will be useful,
   9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11 // Lesser General Public License for more details.
  12 //
  13 // You should have received a copy of the GNU Lesser General Public
  14 // License along with this library; if not, write to the Free Software
  15 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  16 //
  17 // See http://www.salome-platform.org/ or
  18 // email : webmaster.salome@opencascade.com<mailto:webmaster.salome@opencascade.com>
  19 //
  20
  21 #include "XGUI_OperationMgr.h"
  22
  23 #include "XGUI_ActiveControlMgr.h"
  24 #include "XGUI_ActiveControlSelector.h"
  25 #include "XGUI_FacesPanelSelector.h"
  26 #include "XGUI_ModuleConnector.h"
  27 #include "XGUI_Workshop.h"
  28 #include "XGUI_ErrorMgr.h"
  29 #include "XGUI_FacesPanel.h"
  30 #include "XGUI_Tools.h"
  31 #include "XGUI_ObjectsBrowser.h"
  32 #include "XGUI_ContextMenuMgr.h"
  33
  34 #include <ModuleBase_IPropertyPanel.h>
  35 #include <ModuleBase_ModelWidget.h>
  36 #include "ModuleBase_Operation.h"
  37 #include "ModuleBase_IWorkshop.h"
  38 #include "ModuleBase_IModule.h"
  39 #include <ModuleBase_IViewer.h>
  40 #include "ModuleBase_OperationDescription.h"
  41 #include "ModuleBase_OperationFeature.h"
  42 #include "ModuleBase_Tools.h"
  43
  44 #include "ModelAPI_CompositeFeature.h"
  45 #include "ModelAPI_Session.h"
  46
  47 #include <XGUI_PropertyPanel.h>
  48 #include <QToolButton>
  49 #include <QLineEdit>
  50
  51 #include <QMessageBox>
  52 #include <QApplication>
  53 #include <QKeyEvent>
  54
  55 //#define DEBUG_CURRENT_FEATURE
  56
  57 /// Processes "Delete" key event of application. This key is used by several application actions.
  58 /// There is a logical order of the actions processing. So the key can not be set for actions
  59 /// as a shortcut. The class listens the key event and call operation manager processor.
  60 class XGUI_ShortCutListener : public QObject
  61 {
  62 public:
  63   /// Constructor
  64   /// \param theParent the parent to be deleted when the parent is deleted
  65   /// \param theOperationMgr the class to perform deletion
  66   XGUI_ShortCutListener(QObject* theParent, XGUI_OperationMgr* theOperationMgr)
  67     : QObject(theParent), myOperationMgr(theOperationMgr), myIsActive(false)
  68   {
  69     qApp->installEventFilter(this);
  70   }
  71   ~XGUI_ShortCutListener() {}
  72
  73   /// Switch on short cut listener
  74   void setActive(const bool theIsActive) { myIsActive = theIsActive; }
  75
  76   /// Redefinition of virtual function to process Delete key release
  77   virtual bool eventFilter(QObject *theObject, QEvent *theEvent)
  78   {
  79     bool isAccepted = false;
  80     if (myIsActive) {
  81       if (theEvent->type() == QEvent::KeyRelease) {
  82         QKeyEvent* aKeyEvent = dynamic_cast<QKeyEvent*>(theEvent);
  83         if (aKeyEvent) {
  84           myOperationMgr->setSHIFTPressed(aKeyEvent->modifiers() & Qt::ShiftModifier);
  85           switch (aKeyEvent->key()) {
  86             case Qt::Key_Delete:
  87               isAccepted = myOperationMgr->onProcessDelete(theObject);
  88             break;
  89             default:
  90               isAccepted = myOperationMgr->onKeyReleased(theObject, aKeyEvent);
  91               break;
  92           }
  93         }
  94       }
  95       else if (theEvent->type() == QEvent::KeyPress) {
  96         QKeyEvent* aKeyEvent = dynamic_cast<QKeyEvent*>(theEvent);
  97         myOperationMgr->setSHIFTPressed(aKeyEvent->modifiers() & Qt::ShiftModifier);
  98         switch (aKeyEvent->key()) {
  99           case Qt::Key_Escape:
 100             isAccepted = myOperationMgr->onKeyPressed(theObject, aKeyEvent);
 101           break;
 102           default:
 103             break;
 104         }
 105       }
 106     }
 107     if (!isAccepted)
 108       isAccepted = QObject::eventFilter(theObject, theEvent);
 109     return isAccepted;
 110   }
 111
 112 private:
 113   XGUI_OperationMgr* myOperationMgr; /// processor for key event
 114   bool myIsActive; /// boolean state whether the event filter perform own signal processing
 115 };
 116
 117 XGUI_OperationMgr::XGUI_OperationMgr(QObject* theParent,
 118                                      ModuleBase_IWorkshop* theWorkshop)
 119 : QObject(theParent), myWorkshop(theWorkshop), mySHIFTPressed(false), myActiveMessageBox(0)
 120 {
 121   /// we need to install filter to the application in order to react to 'Delete' key button
 122   /// this key can not be a short cut for a corresponded action because we need to set
 123   /// the actions priority
 124   myShortCutListener = new XGUI_ShortCutListener(theParent, this);
 125 }
 126
 127 XGUI_OperationMgr::~XGUI_OperationMgr()
 128 {
 129 }
 130
 131 void XGUI_OperationMgr::activate()
 132 {
 133   myShortCutListener->setActive(true);
 134 }
 135
 136 void XGUI_OperationMgr::deactivate()
 137 {
 138   myShortCutListener->setActive(false);
 139 }
 140
 141 ModuleBase_Operation* XGUI_OperationMgr::currentOperation() const
 142 {
 143   return myOperations.count() > 0 ? myOperations.last() : 0;
 144 }
 145
 146 bool XGUI_OperationMgr::isCurrentOperation(ModuleBase_Operation* theOperation)
 147 {
 148   if(!hasOperation())
 149     return false;
 150   return currentOperation() == theOperation;
 151 }
 152
 153 bool XGUI_OperationMgr::hasOperation() const
 154 {
 155   return !myOperations.isEmpty() && (myOperations.last() != NULL);
 156 }
 157
 158 bool XGUI_OperationMgr::hasOperation(const QString& theId) const
 159 {
 160   foreach(ModuleBase_Operation* aOp, myOperations) {
 161     if (aOp->id() == theId)
 162       return true;
 163   }
 164   return false;
 165 }
 166
 167 ModuleBase_Operation* XGUI_OperationMgr::findOperation(const QString& theId) const
 168 {
 169   QList<ModuleBase_Operation*>::const_iterator anIt = myOperations.end();
 170   while (anIt != myOperations.begin()) {
 171     --anIt;
 172     ModuleBase_Operation* anOperation = *anIt;
 173     if (anOperation->id() == theId)
 174       return anOperation;
 175   }
 176   return 0;
 177 }
 178
 179
 180 int XGUI_OperationMgr::operationsCount() const
 181 {
 182   return myOperations.count();
 183 }
 184
 185 QStringList XGUI_OperationMgr::operationList() const
 186 {
 187   QStringList result;
 188   foreach(ModuleBase_Operation* eachOperation, myOperations) {
 189     ModuleBase_OperationFeature* aFOperation =
 190       dynamic_cast<ModuleBase_OperationFeature*>(eachOperation);
 191     if (aFOperation) {
 192       FeaturePtr aFeature = aFOperation->feature();
 193       if(aFeature) {
 194         result << QString::fromStdString(aFeature->getKind());
 195       }
 196     }
 197   }
 198   return result;
 199 }
 200
 201 ModuleBase_Operation* XGUI_OperationMgr::previousOperation(ModuleBase_Operation* theOperation) const
 202 {
 203   int idx = myOperations.lastIndexOf(theOperation);
 204   if(idx == -1 || idx == 0) {
 205     return NULL;
 206   }
 207   return myOperations.at(idx - 1);
 208 }
 209
 210 ModuleBase_ModelWidget* XGUI_OperationMgr::activeWidget() const
 211 {
 212   ModuleBase_ModelWidget* anActiveWidget = 0;
 213   ModuleBase_Operation* anOperation = currentOperation();
 214   if (anOperation) {
 215     ModuleBase_IPropertyPanel* aPanel = anOperation->propertyPanel();
 216     if (aPanel)
 217       anActiveWidget = aPanel->activeWidget();
 218   }
 219   return anActiveWidget;
 220 }
 221
 222 bool XGUI_OperationMgr::startOperation(ModuleBase_Operation* theOperation)
 223 {
 224   if (hasOperation())
 225     currentOperation()->postpone();
 226   myOperations.append(theOperation);
 227
 228   connect(theOperation, SIGNAL(beforeStarted()), SLOT(onBeforeOperationStarted()));
 229   connect(theOperation, SIGNAL(beforeAborted()), SLOT(onBeforeOperationAborted()));
 230   connect(theOperation, SIGNAL(beforeCommitted()), SLOT(onBeforeOperationCommitted()));
 231
 232   connect(theOperation, SIGNAL(started()), SLOT(onOperationStarted()));
 233   connect(theOperation, SIGNAL(aborted()), SLOT(onOperationAborted()));
 234   connect(theOperation, SIGNAL(committed()), SLOT(onOperationCommitted()));
 235
 236   connect(theOperation, SIGNAL(stopped()), SLOT(onOperationStopped()));
 237   connect(theOperation, SIGNAL(resumed()), SLOT(onOperationResumed()));
 238
 239   bool isStarted = theOperation->start();
 240   if (isStarted)
 241     onValidateOperation();
 242   return isStarted;
 243 }
 244
 245 bool XGUI_OperationMgr::abortAllOperations(const XGUI_MessageKind& theMessageKind)
 246 {
 247   bool aResult = true;
 248   if(!hasOperation())
 249     return aResult;
 250
 251   if (operationsCount() == 1) {
 252     ModuleBase_Operation* aCurrentOperation = currentOperation();
 253     if (canStopOperation(aCurrentOperation, theMessageKind)) {
 254       abortOperation(aCurrentOperation);
 255     }
 256     else
 257       aResult = false;
 258   }
 259   else {
 260     if (theMessageKind == XGUI_AbortOperationMessage) {
 261       myActiveMessageBox = createMessageBox(tr("All active operations will be aborted."));
 262       aResult = myActiveMessageBox->exec() == QMessageBox::Ok;
 263       myActiveMessageBox = 0;
 264     }
 265     else if (theMessageKind == XGUI_InformationMessage) {
 266       QString aMessage = tr("Please validate all your active operations before saving.");
 267       myActiveMessageBox = createInformationBox(aMessage);
 268       myActiveMessageBox->exec();
 269       myActiveMessageBox = 0;
 270       aResult = false; // do not perform abort
 271     }
 272     while(aResult && hasOperation()) {
 273       abortOperation(currentOperation());
 274     }
 275   }
 276   return aResult;
 277 }
 278
 279 bool XGUI_OperationMgr::commitAllOperations()
 280 {
 281   bool isCompositeCommitted = false, anOperationProcessed = false;
 282   while (hasOperation()) {
 283     ModuleBase_Operation* anOperation = currentOperation();
 284     if (XGUI_Tools::workshop(myWorkshop)->errorMgr()->isApplyEnabled()) {
 285       anOperationProcessed = commitOperation();
 286     } else {
 287       abortOperation(anOperation);
 288       anOperationProcessed = true;
 289     }
 290     ModuleBase_OperationFeature* aFOperation = dynamic_cast<ModuleBase_OperationFeature*>
 291                                                                             (anOperation);
 292     if (aFOperation) {
 293       FeaturePtr aFeature = aFOperation->feature();
 294       CompositeFeaturePtr aComposite =
 295           std::dynamic_pointer_cast<ModelAPI_CompositeFeature>(aFeature);
 296       isCompositeCommitted = aComposite.get();
 297       if (isCompositeCommitted)
 298         break;
 299     }
 300     // not processed[committed] operation might be used in composite feature,
 301     // so the while will be stopped by the previous check.
 302     // this code is not necessary, but logically should be done when the processing will not
 303     // be done for not composite feature by some reasons
 304     if (!anOperationProcessed)
 305       break;
 306   }
 307   return true;
 308 }
 309
 310 void XGUI_OperationMgr::onValidateOperation()
 311 {
 312   if (!hasOperation())
 313     return;
 314   ModuleBase_OperationFeature* aFOperation = dynamic_cast<ModuleBase_OperationFeature*>
 315                                                                           (currentOperation());
 316   if(aFOperation && aFOperation->feature().get())
 317     XGUI_Tools::workshop(myWorkshop)->errorMgr()->updateActions(aFOperation->feature());
 318 }
 319
 320 void XGUI_OperationMgr::updateApplyOfOperations(ModuleBase_Operation* theOperation)
 321 {
 322   XGUI_ErrorMgr* anErrorMgr = XGUI_Tools::workshop(myWorkshop)->errorMgr();
 323   if (theOperation) {
 324     ModuleBase_OperationFeature* aFOperation =
 325       dynamic_cast<ModuleBase_OperationFeature*>(theOperation);
 326     if (aFOperation)
 327       anErrorMgr->updateAcceptAllAction(aFOperation->feature());
 328   }
 329   else {
 330     foreach(ModuleBase_Operation* anOperation, myOperations) {
 331       if (anOperation)
 332         updateApplyOfOperations(anOperation);
 333     }
 334   }
 335   // Apply button of the current operation should also be updated
 336   onValidateOperation();
 337 }
 338
 339 bool XGUI_OperationMgr::canStopOperation(ModuleBase_Operation* theOperation,
 340                                          const XGUI_OperationMgr::XGUI_MessageKind& theMessageKind)
 341 {
 342   //in case of nested (sketch) operation no confirmation needed
 343   if (isGrantedOperation(theOperation->id()))
 344     return true;
 345   if (theOperation && theOperation->isModified()) {
 346     if (theMessageKind == XGUI_AbortOperationMessage) {
 347       QString aMessage = tr("%1 operation will be aborted.").arg(theOperation->id());
 348       myActiveMessageBox = createMessageBox(aMessage);
 349       bool aResult = myActiveMessageBox->exec() == QMessageBox::Ok;
 350       myActiveMessageBox = 0;
 351       return aResult;
 352     }
 353     else if (theMessageKind == XGUI_InformationMessage) {
 354       QString aMessage = tr("Please validate your %1 before saving.").arg(theOperation->id());
 355       myActiveMessageBox = createInformationBox(aMessage);
 356       myActiveMessageBox->exec();
 357       myActiveMessageBox = 0;
 358       return false;
 359     }
 360   }
 361   return true;
 362 }
 363
 364 void XGUI_OperationMgr::resumeOperation(ModuleBase_Operation* theOperation)
 365 {
 366   theOperation->resume();
 367 }
 368
 369 bool XGUI_OperationMgr::isGrantedOperation(const QString& theId)
 370 {
 371   bool isGranted = false;
 372
 373   QListIterator<ModuleBase_Operation*> anIt(myOperations);
 374   anIt.toBack();
 375   ModuleBase_Operation* aPreviousOperation = 0;
 376   while (anIt.hasPrevious() && !isGranted) {
 377     ModuleBase_Operation* anOp = anIt.previous();
 378     if (anOp)
 379       isGranted = anOp->isGranted(theId);
 380   }
 381   return isGranted;
 382 }
 383
 384 void XGUI_OperationMgr::setCurrentFeature(const FeaturePtr& theFeature)
 385 {
 386   SessionPtr aMgr = ModelAPI_Session::get();
 387   DocumentPtr aDoc = aMgr->activeDocument();
 388   bool aIsOp = aMgr->isOperation();
 389   if (!aIsOp)
 390     aMgr->startOperation(QString("Set current feature: %1")
 391     .arg(theFeature->getKind().c_str()).toStdString());
 392   aDoc->setCurrentFeature(theFeature, false);
 393 #ifdef DEBUG_CURRENT_FEATURE
 394   qDebug(QString("   document->setCurrentFeature(false) = %1    SET").arg(
 395          ModuleBase_Tools::objectName(
 396          ModelAPI_Session::get()->activeDocument()->currentFeature(false))).toStdString().c_str());
 397 #endif
 398
 399   if (!aIsOp)
 400     aMgr->finishOperation();
 401 }
 402
 403 bool XGUI_OperationMgr::canStartOperation(const QString& theId, bool& isCommitted)
 404 {
 405   bool aCanStart = true;
 406   isCommitted = false;
 407   ModuleBase_Operation* aCurrentOp = currentOperation();
 408   if (aCurrentOp) {
 409     bool aGranted = aCurrentOp->isGranted(theId);
 410     // the started operation is granted for the current one,
 411     // e.g. current - Sketch, started - Line
 412     if (aGranted) {
 413       aCanStart = true;
 414     }
 415     else {
 416       if (!isGrantedOperation(theId)) {
 417         // the operation is not granted in the current list of operations
 418         // e.g. Edit Parameter when Sketch, Line in Sketch is active.
 419         aCanStart = abortAllOperations();
 420       }
 421       else if (canStopOperation(aCurrentOp)) {
 422         // the started operation is granted in the parrent operation,
 423         // e.g. current - Line in Sketch, started Circle
 424         stopOperation(aCurrentOp, isCommitted);
 425       } else {
 426         aCanStart = false;
 427       }
 428     }
 429   }
 430   return aCanStart;
 431 }
 432
 433 void XGUI_OperationMgr::stopOperation(ModuleBase_Operation* theOperation, bool& isCommitted)
 434 {
 435   if (XGUI_Tools::workshop(myWorkshop)->errorMgr()->isApplyEnabled() && theOperation->isModified())
 436     isCommitted = theOperation->commit();
 437   else {
 438     isCommitted = false;
 439     abortOperation(theOperation);
 440   }
 441 }
 442
 443 void XGUI_OperationMgr::abortOperation(ModuleBase_Operation* theOperation)
 444 {
 445   ModuleBase_Operation* aCurrentOperation = currentOperation();
 446   if (theOperation == aCurrentOperation)
 447     theOperation->abort();
 448   else {
 449     // it is possible to trigger upper operation(e.g. sketch, current is sketch line)
 450     // all operation from the current to triggered should also be aborted
 451     // operations over the parameter one are not aborted(e.g. extrusion cut, sketch abort)
 452     while(hasOperation()) {
 453       ModuleBase_Operation* aCurrentOperation = currentOperation();
 454       aCurrentOperation->abort();
 455       if(theOperation == aCurrentOperation)
 456         break;
 457     }
 458   }
 459 }
 460
 461 bool XGUI_OperationMgr::commitOperation()
 462 {
 463   bool isCommitted = false;
 464   ModuleBase_Operation* anOperation = currentOperation();
 465   if (anOperation && myWorkshop->module()->canCommitOperation())
 466     isCommitted = anOperation->commit();
 467   return isCommitted;
 468 }
 469
 470 void XGUI_OperationMgr::onAbortOperation()
 471 {
 472   ModuleBase_Operation* aCurrentOperation = currentOperation();
 473   if (aCurrentOperation && canStopOperation(aCurrentOperation)) {
 474     abortOperation(aCurrentOperation);
 475   }
 476 }
 477
 478 void XGUI_OperationMgr::onAbortAllOperation()
 479 {
 480   abortAllOperations();
 481 }
 482
 483 void XGUI_OperationMgr::onBeforeOperationStarted()
 484 {
 485   ModuleBase_Operation* aCurrentOperation = dynamic_cast<ModuleBase_Operation*>(sender());
 486   if (!aCurrentOperation)
 487     return;
 488
 489   /// Set current feature and remeber old current feature
 490   ModuleBase_OperationFeature* aFOperation =
 491     dynamic_cast<ModuleBase_OperationFeature*>(aCurrentOperation);
 492   if (aFOperation) {
 493     SessionPtr aMgr = ModelAPI_Session::get();
 494     DocumentPtr aDoc = aMgr->activeDocument();
 495     // the parameter of current feature should be false, we should use all feature, not only
 496     // visible in order to correctly save the previous feature of the nested operation, where the
 497     // features can be not visible in the tree. The problem case is Edit sketch entitity(line)
 498     // in the Sketch, created in ExtrusionCut operation. The entity disappears by commit.
 499     // When sketch entity operation started, the sketch should be cashed here as the current.
 500     // Otherwise(the flag is true), the ExtrusionCut is cashed, when commit happens, the sketch
 501     // is disabled, sketch entity is disabled as extrusion cut is created earliest then sketch.
 502     // As a result the sketch disappears from the viewer.
 503     // However after commit it is displayed back.
 504     aFOperation->setPreviousCurrentFeature(aDoc->currentFeature(false));
 505
 506 #ifdef DEBUG_CURRENT_FEATURE
 507     FeaturePtr aFeature = aFOperation->feature();
 508     QString aKind = aFeature ? aFeature->getKind().c_str() : "";
 509     qDebug("");
 510     qDebug(QString("onBeforeOperationStarted() isEditOperation = %1, feature = %2")
 511             .arg(aFOperation->isEditOperation())
 512             .arg(ModuleBase_Tools::objectName(aFeature)).toStdString().c_str());
 513     qDebug(QString("   document->currentFeature(false) = %1 : DO: setPreviousCurrentFeature").arg(
 514             ModuleBase_Tools::objectName(aDoc->currentFeature(false))).toStdString().c_str());
 515 #endif
 516
 517     if (aFOperation->isEditOperation()) {// it should be performed by the feature edit only
 518       // in create operation, the current feature is changed by addFeature()
 519       aDoc->setCurrentFeature(aFOperation->feature(), false);
 520 #ifdef DEBUG_CURRENT_FEATURE
 521       qDebug(QString("   document->setCurrentFeature(false) = %1").arg(
 522              ModuleBase_Tools::objectName(aDoc->currentFeature(false))).toStdString().c_str());
 523 #endif
 524       // this is the only place where flushes must be called after setCurrentFeature for the
 525       // current moment: after this the opertion is not finished, so, the ObjectBrowser
 526       // state may be corrupted (issue #1457)
 527       static Events_Loop* aLoop = Events_Loop::loop();
 528       static Events_ID aCreateEvent = aLoop->eventByName(EVENT_OBJECT_CREATED);
 529       aLoop->flush(aCreateEvent);
 530       static Events_ID aDeleteEvent = aLoop->eventByName(EVENT_OBJECT_DELETED);
 531       aLoop->flush(aDeleteEvent);
 532     }
 533   }
 534 }
 535
 536 void XGUI_OperationMgr::onOperationStarted()
 537 {
 538   ModuleBase_Operation* aSenderOperation = dynamic_cast<ModuleBase_Operation*>(sender());
 539   updateApplyOfOperations(aSenderOperation);
 540   XGUI_Workshop* aWorkshop = XGUI_Tools::workshop(myWorkshop);
 541   aWorkshop->operationStarted(aSenderOperation);
 542 }
 543
 544 void XGUI_OperationMgr::onBeforeOperationAborted()
 545 {
 546   onBeforeOperationCommitted();
 547 }
 548
 549 void XGUI_OperationMgr::onOperationAborted()
 550 {
 551   ModuleBase_Operation* aSenderOperation = dynamic_cast<ModuleBase_Operation*>(sender());
 552   emit operationAborted(aSenderOperation);
 553 }
 554
 555 void XGUI_OperationMgr::onBeforeOperationCommitted()
 556 {
 557   ModuleBase_Operation* aCurrentOperation = dynamic_cast<ModuleBase_Operation*>(sender());
 558   if (!aCurrentOperation)
 559     return;
 560
 561   /// Restore the previous current feature
 562   ModuleBase_OperationFeature* aFOperation =
 563     dynamic_cast<ModuleBase_OperationFeature*>(aCurrentOperation);
 564   if (aFOperation) {
 565 #ifdef DEBUG_CURRENT_FEATURE
 566     QString aKind = aFOperation->feature()->getKind().c_str();
 567     qDebug(QString("onBeforeOperationCommitted() isEditOperation = %1, feature = %2")
 568             .arg(aFOperation->isEditOperation())
 569             .arg(ModuleBase_Tools::objectName(aFOperation->feature())).toStdString().c_str());
 570     qDebug(QString("   document->currentFeature(false) = %1").arg(
 571             ModuleBase_Tools::objectName(
 572             ModelAPI_Session::get()->activeDocument()->currentFeature(false)))
 573             .toStdString().c_str());
 574 #endif
 575
 576     if (aFOperation->isEditOperation()) {
 577       /// Restore the previous current feature
 578       setCurrentFeature(aFOperation->previousCurrentFeature());
 579     }
 580     else { // create operation
 581       // the Top created feature should stays the current. In nested operations,
 582       // like Line in the Sketch or
 583       // Sketch in ExtrusionCut, a previous feature should be restored on commit.
 584       // It is performed here
 585       // in order to perform it in the current transaction without opening a new one.
 586       if (myOperations.front() != aFOperation)
 587         setCurrentFeature(aFOperation->previousCurrentFeature());
 588     }
 589     ModuleBase_IModule* aModule = myWorkshop->module();
 590     if (aModule)
 591       aModule->beforeOperationStopped(aFOperation);
 592   }
 593 }
 594
 595 void XGUI_OperationMgr::onOperationCommitted()
 596 {
 597   // apply state for all features from the stack of operations should be updated
 598   updateApplyOfOperations();
 599
 600   ModuleBase_Operation* aSenderOperation = dynamic_cast<ModuleBase_Operation*>(sender());
 601   emit operationCommitted(aSenderOperation);
 602 }
 603
 604 void XGUI_OperationMgr::onOperationResumed()
 605 {
 606   ModuleBase_Operation* aSenderOperation = dynamic_cast<ModuleBase_Operation*>(sender());
 607   emit operationResumed(aSenderOperation);
 608 }
 609
 610 void XGUI_OperationMgr::onOperationStopped()
 611 {
 612   ModuleBase_Operation* aSenderOperation = dynamic_cast<ModuleBase_Operation*>(sender());
 613   ModuleBase_Operation* aCurrentOperation = currentOperation();
 614   if (!aSenderOperation || !aCurrentOperation || aSenderOperation != aCurrentOperation)
 615     return;
 616
 617   myOperations.removeAll(aCurrentOperation);
 618   aCurrentOperation->deleteLater();
 619
 620   emit operationStopped(aCurrentOperation);
 621
 622   // get last operation which can be resumed
 623   ModuleBase_Operation* aResultOp = 0;
 624   QListIterator<ModuleBase_Operation*> anIt(myOperations);
 625   anIt.toBack();
 626   while (anIt.hasPrevious()) {
 627     ModuleBase_Operation* anOp = anIt.previous();
 628     if (anOp) {
 629       aResultOp = anOp;
 630       break;
 631     }
 632   }
 633   if (aResultOp) {
 634     bool isModified = aCurrentOperation->isModified();
 635     aResultOp->setIsModified(aResultOp->isModified() || isModified);
 636     resumeOperation(aResultOp);
 637     onValidateOperation();
 638   }
 639 }
 640
 641 bool XGUI_OperationMgr::onKeyReleased(QObject *theObject, QKeyEvent* theEvent)
 642 {
 643   // Let the manager decide what to do with the given key combination.
 644   ModuleBase_Operation* anOperation = currentOperation();
 645   bool isAccepted = false;
 646   switch (theEvent->key()) {
 647     case Qt::Key_Tab:
 648     case Qt::Key_Backtab:
 649     {
 650       ModuleBase_Operation* aOperation = currentOperation();
 651       if (aOperation) {
 652         ModuleBase_IPropertyPanel* aPanel = anOperation->propertyPanel();
 653         if (aPanel) {
 654           QWidget* aFocusedWidget = qApp->focusWidget();
 655           bool isPPChildObject = aFocusedWidget && isChildObject(aFocusedWidget, aPanel);
 656           if (!isPPChildObject) {
 657             // check for case when the operation is started but property panel is not filled
 658             XGUI_PropertyPanel* aPP = dynamic_cast<XGUI_PropertyPanel*>(aPanel);
 659             aPP->setFocusNextPrevChild(theEvent->key() == Qt::Key_Tab);
 660             isAccepted = true;
 661           }
 662         }
 663       }
 664     }
 665     break;
 666     case Qt::Key_Return:
 667     case Qt::Key_Enter: {
 668       isAccepted = onProcessEnter(theObject);
 669     }
 670     break;
 671     case Qt::Key_N:
 672     case Qt::Key_P: {
 673       bool noModifiers = (theEvent->modifiers() == Qt::NoModifier);
 674       if (noModifiers) {
 675         ModuleBase_IViewer* aViewer = myWorkshop->viewer();
 676         Handle(AIS_InteractiveContext) aContext = aViewer->AISContext();
 677         if (!aContext.IsNull()) {
 678           Handle(V3d_View) aView = aViewer->activeView();
 679           if ((theEvent->key() == Qt::Key_N))
 680             aContext->HilightNextDetected(aView);
 681           else if ((theEvent->key() == Qt::Key_P))
 682             aContext->HilightPreviousDetected(aView);
 683         }
 684       }
 685     }
 686     break;
 687     break;
 688     default:
 689       isAccepted = false;
 690       break;
 691   }
 692   //if(anOperation) {
 693   //  anOperation->keyReleased(theEvent->key());
 694   //}
 695   return isAccepted;
 696 }
 697
 698 bool XGUI_OperationMgr::onKeyPressed(QObject *theObject, QKeyEvent* theEvent)
 699 {
 700   // Let the manager decide what to do with the given key combination.
 701   ModuleBase_Operation* anOperation = currentOperation();
 702   bool isAccepted = false;
 703   switch (theEvent->key()) {
 704     case Qt::Key_Escape: {
 705       // processing in message box
 706       if (myActiveMessageBox)
 707       {
 708         myActiveMessageBox->reject();
 709         isAccepted = true;
 710       }
 711       // processing in the active widget
 712       ModuleBase_Operation* aOperation = currentOperation();
 713       if (!isAccepted && aOperation) {
 714         ModuleBase_IPropertyPanel* aPanel = aOperation->propertyPanel();
 715         ModuleBase_ModelWidget* anActiveWgt = aPanel->activeWidget();
 716         if (anActiveWgt)
 717           isAccepted = anActiveWgt && anActiveWgt->processAction(ActionEscape);
 718       }
 719       if (!isAccepted)
 720       {
 721         XGUI_ActiveControlSelector* anActiveSelector =
 722           XGUI_Tools::workshop(myWorkshop)->activeControlMgr()->activeSelector();
 723         if (anActiveSelector && anActiveSelector->getType() == XGUI_FacesPanelSelector::Type())
 724           isAccepted = XGUI_Tools::workshop(myWorkshop)->facesPanel()->processAction(ActionEscape);
 725       }
 726       // default Escape button functionality
 727       if (!isAccepted && aOperation) {
 728         onAbortOperation();
 729         isAccepted = true;
 730       }
 731     }
 732     break;
 733   }
 734   return isAccepted;
 735 }
 736
 737 bool XGUI_OperationMgr::onProcessEnter(QObject* theObject)
 738 {
 739   bool isAccepted = false;
 740   ModuleBase_Operation* aOperation = currentOperation();
 741   // to avoid enter processing when operation has not been started yet
 742   if (!aOperation)
 743     return isAccepted;
 744   ModuleBase_IPropertyPanel* aPanel = aOperation->propertyPanel();
 745   if (!aPanel)
 746     return isAccepted;
 747   // the next code is obsolete as we want to process Enter in property panel always
 748   // only property panel enter is processed in order to do not process enter in application dialogs
 749   //bool isPPChild = isChildObject(theObject, aPanel);
 750   //if (!isPPChild)
 751   //  return isAccepted;
 752
 753   ModuleBase_ModelWidget* anActiveWgt = aPanel->activeWidget();
 754   bool isAborted = false;
 755   if (!anActiveWgt) {
 756     QWidget* aFocusWidget = aPanel->focusWidget();
 757     QToolButton* aCancelBtn =
 758       dynamic_cast<XGUI_PropertyPanel*>(aPanel)->findButton(PROP_PANEL_CANCEL);
 759     if (aFocusWidget && aCancelBtn && aFocusWidget == aCancelBtn) {
 760       abortOperation(aOperation);
 761       isAccepted = true;
 762       isAborted = true;
 763     }
 764   }
 765   if (!isAborted) {
 766     isAccepted = anActiveWgt && anActiveWgt->processAction(ActionEnter);
 767     if (!isAccepted) {
 768       isAccepted =
 769         myWorkshop->module()->processEnter(anActiveWgt ? anActiveWgt->attributeID() : "");
 770       if (!isAccepted) {
 771         /// functionality is similar to Apply click
 772         ModuleBase_OperationFeature* aFOperation =
 773           dynamic_cast<ModuleBase_OperationFeature*>(currentOperation());
 774         if (!aFOperation ||
 775             myWorkshop->module()->getFeatureError(aFOperation->feature()).isEmpty()) {
 776           // key released is emitted to apply the current value to the model
 777           // if it was modified in PP
 778           emit keyEnterReleased();
 779           commitOperation();
 780           isAccepted = true;
 781         }
 782         else
 783           isAccepted = false;
 784       }
 785     }
 786   }
 787   return isAccepted;
 788 }
 789
 790 bool editorControl(QObject* theObject)
 791 {
 792   QLineEdit* aLineEdit = dynamic_cast<QLineEdit*>(theObject);
 793   return aLineEdit;
 794 }
 795
 796 bool XGUI_OperationMgr::onProcessDelete(QObject* theObject)
 797 {
 798   bool isAccepted = false;
 799   ModuleBase_Operation* aOperation = currentOperation();
 800   ModuleBase_ModelWidget* anActiveWgt = 0;
 801   // firstly the widget should process Delete action
 802   ModuleBase_IPropertyPanel* aPanel;
 803   bool isPPChildObject = false;
 804   if (aOperation) {
 805     aPanel = aOperation->propertyPanel();
 806     if (aPanel) {
 807       isPPChildObject = isChildObject(theObject, aPanel);
 808       // process delete in active widget only if delete sender is child of property panel
 809       // it is necessary for the case when OB is shown, user perform selection and click Delete
 810       if (isPPChildObject) {
 811         anActiveWgt = aPanel->activeWidget();
 812         if (anActiveWgt) {
 813           isAccepted = anActiveWgt->processAction(ActionDelete);
 814         }
 815       }
 816     }
 817   }
 818   if (!isAccepted)
 819   {
 820     XGUI_ActiveControlSelector* anActiveSelector =
 821       XGUI_Tools::workshop(myWorkshop)->activeControlMgr()->activeSelector();
 822     if (anActiveSelector && anActiveSelector->getType() == XGUI_FacesPanelSelector::Type())
 823       isAccepted = XGUI_Tools::workshop(myWorkshop)->facesPanel()->processAction(ActionDelete);
 824   }
 825   if (!isAccepted) {
 826     // after widget, object browser and viewer should process delete
 827     /// other widgets such as line edit controls should not lead to
 828     /// processing delete by workshop
 829     XGUI_ObjectsBrowser* aBrowser = XGUI_Tools::workshop(myWorkshop)->objectBrowser();
 830     QWidget* aViewPort = myWorkshop->viewer()->activeViewPort();
 831     bool isToDeleteObject = false;
 832     XGUI_Workshop* aWorkshop = XGUI_Tools::workshop(myWorkshop);
 833     XGUI_ContextMenuMgr* aContextMenuMgr = aWorkshop->contextMenuMgr();
 834     if (theObject == aBrowser->treeView()) {
 835       aContextMenuMgr->updateObjectBrowserMenu();
 836       isToDeleteObject = aContextMenuMgr->action("DELETE_CMD")->isEnabled();
 837     }
 838     else if (isChildObject(theObject, aViewPort)) {
 839       aContextMenuMgr->updateViewerMenu();
 840       isToDeleteObject = aContextMenuMgr->action("DELETE_CMD")->isEnabled();
 841     }
 842     else if (isPPChildObject) {
 843       // property panel child object is processed to process delete performed on Apply button of PP
 844       isToDeleteObject = true;
 845     }
 846     else if (editorControl(theObject)) {
 847       isToDeleteObject = false; /// Line Edit of Rename operation in ObjectBrowser
 848       isAccepted = true;
 849     }
 850
 851     if (isToDeleteObject) {
 852       aWorkshop->deleteObjects();
 853       isAccepted = true;
 854     }
 855   }
 856
 857   return isAccepted;
 858 }
 859
 860 bool XGUI_OperationMgr::isChildObject(const QObject* theObject, const QObject* theParent)
 861 {
 862   bool isPPChild = false;
 863   if (theParent && theObject) {
 864     QObject* aParent = (QObject*)theObject;
 865     while (aParent ) {
 866       isPPChild = aParent == theParent;
 867       if (isPPChild)
 868         break;
 869       aParent = aParent->parent();
 870     }
 871   }
 872   return isPPChild;
 873 }
 874
 875 QMessageBox* XGUI_OperationMgr::createMessageBox(const QString& theMessage)
 876 {
 877   QMessageBox * aMessageBox = new QMessageBox(QMessageBox::Question,
 878     QObject::tr("Abort operation"), theMessage, QMessageBox::Ok | QMessageBox::Cancel,
 879     qApp->activeWindow());
 880   aMessageBox->setDefaultButton(QMessageBox::Cancel);
 881   aMessageBox->setEscapeButton(QMessageBox::No); // operation manager should process Esc key
 882
 883   return aMessageBox;
 884 }
 885
 886 QMessageBox* XGUI_OperationMgr::createInformationBox(const QString& theMessage)
 887 {
 888   QMessageBox * aMessageBox = new QMessageBox(QMessageBox::Question,
 889     QObject::tr("Validate operation"), theMessage, QMessageBox::Ok,
 890     qApp->activeWindow());
 891   aMessageBox->setDefaultButton(QMessageBox::Ok);
 892   aMessageBox->setEscapeButton(QMessageBox::No); // operation manager should process Esc key
 893
 894   return aMessageBox;
 895 }