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