src/XGUI/XGUI_OperationMgr.cpp

   1 // Copyright (C) 2014-2019  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 email : webmaster.salome@opencascade.com
  18 //
  19
  20 #include "XGUI_OperationMgr.h"
  21
  22 #include "XGUI_ActiveControlMgr.h"
  23 #include "XGUI_ActiveControlSelector.h"
  24 #include "XGUI_FacesPanelSelector.h"
  25 #include "XGUI_ModuleConnector.h"
  26 #include "XGUI_Workshop.h"
  27 #include "XGUI_ErrorMgr.h"
  28 #include "XGUI_FacesPanel.h"
  29 #include "XGUI_Tools.h"
  30 #include "XGUI_ObjectsBrowser.h"
  31 #include "XGUI_ContextMenuMgr.h"
  32
  33 #include <ModuleBase_IPropertyPanel.h>
  34 #include <ModuleBase_ModelWidget.h>
  35 #include "ModuleBase_Operation.h"
  36 #include "ModuleBase_IWorkshop.h"
  37 #include "ModuleBase_IModule.h"
  38 #include <ModuleBase_IViewer.h>
  39 #include "ModuleBase_OperationDescription.h"
  40 #include "ModuleBase_OperationFeature.h"
  41 #include "ModuleBase_Tools.h"
  42
  43 #include "ModelAPI_CompositeFeature.h"
  44 #include "ModelAPI_Session.h"
  45
  46 #include <XGUI_PropertyPanel.h>
  47 #include <QToolButton>
  48 #include <QLineEdit>
  49
  50 #include <QMessageBox>
  51 #include <QApplication>
  52 #include <QKeyEvent>
  53
  54 //#define DEBUG_CURRENT_FEATURE
  55
  56 /// Processes "Delete" key event of application. This key is used by several application actions.
  57 /// There is a logical order of the actions processing. So the key can not be set for actions
  58 /// as a shortcut. The class listens the key event and call operation manager processor.
  59 class XGUI_ShortCutListener : public QObject
  60 {
  61 public:
  62   /// Constructor
  63   /// \param theParent the parent to be deleted when the parent is deleted
  64   /// \param theOperationMgr the class to perform deletion
  65   XGUI_ShortCutListener(QObject* theParent, XGUI_OperationMgr* theOperationMgr)
  66     : QObject(theParent), myOperationMgr(theOperationMgr), myIsActive(false)
  67   {
  68     qApp->installEventFilter(this);
  69   }
  70   ~XGUI_ShortCutListener() {}
  71
  72   /// Switch on short cut listener
  73   void setActive(const bool theIsActive) { myIsActive = theIsActive; }
  74
  75   /// Redefinition of virtual function to process Delete key release
  76   virtual bool eventFilter(QObject *theObject, QEvent *theEvent)
  77   {
  78     bool isAccepted = false;
  79     if (myIsActive) {
  80       if (theEvent->type() == QEvent::KeyRelease) {
  81         QKeyEvent* aKeyEvent = dynamic_cast<QKeyEvent*>(theEvent);
  82         if (aKeyEvent) {
  83           myOperationMgr->setSHIFTPressed(aKeyEvent->modifiers() & Qt::ShiftModifier);
  84           switch (aKeyEvent->key()) {
  85             case Qt::Key_Delete:
  86               isAccepted = myOperationMgr->onProcessDelete(theObject);
  87             break;
  88             default:
  89               isAccepted = myOperationMgr->onKeyReleased(theObject, aKeyEvent);
  90               break;
  91           }
  92         }
  93       }
  94       else if (theEvent->type() == QEvent::KeyPress) {
  95         QKeyEvent* aKeyEvent = dynamic_cast<QKeyEvent*>(theEvent);
  96         myOperationMgr->setSHIFTPressed(aKeyEvent->modifiers() & Qt::ShiftModifier);
  97         isAccepted = myOperationMgr->onKeyPressed(theObject, aKeyEvent);
  98       }
  99     }
 100     if (!isAccepted)
 101       isAccepted = QObject::eventFilter(theObject, theEvent);
 102     return isAccepted;
 103   }
 104
 105 private:
 106   XGUI_OperationMgr* myOperationMgr; /// processor for key event
 107   bool myIsActive; /// boolean state whether the event filter perform own signal processing
 108 };
 109
 110 XGUI_OperationMgr::XGUI_OperationMgr(QObject* theParent,
 111                                      ModuleBase_IWorkshop* theWorkshop)
 112 : QObject(theParent), myWorkshop(theWorkshop), mySHIFTPressed(false), myActiveMessageBox(0)
 113 {
 114   /// we need to install filter to the application in order to react to 'Delete' key button
 115   /// this key can not be a short cut for a corresponded action because we need to set
 116   /// the actions priority
 117   myShortCutListener = new XGUI_ShortCutListener(theParent, this);
 118 }
 119
 120 XGUI_OperationMgr::~XGUI_OperationMgr()
 121 {
 122 }
 123
 124 void XGUI_OperationMgr::activate()
 125 {
 126   myShortCutListener->setActive(true);
 127 }
 128
 129 void XGUI_OperationMgr::deactivate()
 130 {
 131   myShortCutListener->setActive(false);
 132 }
 133
 134 ModuleBase_Operation* XGUI_OperationMgr::currentOperation() const
 135 {
 136   return myOperations.count() > 0 ? myOperations.last() : 0;
 137 }
 138
 139 bool XGUI_OperationMgr::isCurrentOperation(ModuleBase_Operation* theOperation)
 140 {
 141   if(!hasOperation())
 142     return false;
 143   return currentOperation() == theOperation;
 144 }
 145
 146 bool XGUI_OperationMgr::hasOperation() const
 147 {
 148   return !myOperations.isEmpty() && (myOperations.last() != NULL);
 149 }
 150
 151 bool XGUI_OperationMgr::hasOperation(const QString& theId) const
 152 {
 153   foreach(ModuleBase_Operation* aOp, myOperations) {
 154     if (aOp->id() == theId)
 155       return true;
 156   }
 157   return false;
 158 }
 159
 160 ModuleBase_Operation* XGUI_OperationMgr::findOperation(const QString& theId) const
 161 {
 162   QList<ModuleBase_Operation*>::const_iterator anIt = myOperations.end();
 163   while (anIt != myOperations.begin()) {
 164     --anIt;
 165     ModuleBase_Operation* anOperation = *anIt;
 166     if (anOperation->id() == theId)
 167       return anOperation;
 168   }
 169   return 0;
 170 }
 171
 172
 173 int XGUI_OperationMgr::operationsCount() const
 174 {
 175   return myOperations.count();
 176 }
 177
 178 QStringList XGUI_OperationMgr::operationList() const
 179 {
 180   QStringList result;
 181   foreach(ModuleBase_Operation* eachOperation, myOperations) {
 182     ModuleBase_OperationFeature* aFOperation =
 183       dynamic_cast<ModuleBase_OperationFeature*>(eachOperation);
 184     if (aFOperation) {
 185       FeaturePtr aFeature = aFOperation->feature();
 186       if(aFeature) {
 187         result << QString::fromStdString(aFeature->getKind());
 188       }
 189     }
 190   }
 191   return result;
 192 }
 193
 194 ModuleBase_Operation* XGUI_OperationMgr::previousOperation(ModuleBase_Operation* theOperation) const
 195 {
 196   int idx = myOperations.lastIndexOf(theOperation);
 197   if(idx == -1 || idx == 0) {
 198     return NULL;
 199   }
 200   return myOperations.at(idx - 1);
 201 }
 202
 203 ModuleBase_ModelWidget* XGUI_OperationMgr::activeWidget() const
 204 {
 205   ModuleBase_ModelWidget* anActiveWidget = 0;
 206   ModuleBase_Operation* anOperation = currentOperation();
 207   if (anOperation) {
 208     ModuleBase_IPropertyPanel* aPanel = anOperation->propertyPanel();
 209     if (aPanel)
 210       anActiveWidget = aPanel->activeWidget();
 211   }
 212   return anActiveWidget;
 213 }
 214
 215 bool XGUI_OperationMgr::startOperation(ModuleBase_Operation* theOperation)
 216 {
 217   if (hasOperation())
 218     currentOperation()->postpone();
 219   myOperations.append(theOperation);
 220
 221   connect(theOperation, SIGNAL(beforeStarted()), SLOT(onBeforeOperationStarted()));
 222   connect(theOperation, SIGNAL(beforeAborted()), SLOT(onBeforeOperationAborted()));
 223   connect(theOperation, SIGNAL(beforeCommitted()), SLOT(onBeforeOperationCommitted()));
 224
 225   connect(theOperation, SIGNAL(started()), SLOT(onOperationStarted()));
 226   connect(theOperation, SIGNAL(aborted()), SLOT(onOperationAborted()));
 227   connect(theOperation, SIGNAL(committed()), SLOT(onOperationCommitted()));
 228
 229   connect(theOperation, SIGNAL(stopped()), SLOT(onOperationStopped()));
 230   connect(theOperation, SIGNAL(resumed()), SLOT(onOperationResumed()));
 231
 232   bool isStarted = theOperation->start();
 233   if (isStarted)
 234     onValidateOperation();
 235   return isStarted;
 236 }
 237
 238 bool XGUI_OperationMgr::abortAllOperations(const XGUI_MessageKind& theMessageKind)
 239 {
 240   bool aResult = true;
 241   if(!hasOperation())
 242     return aResult;
 243
 244   if (operationsCount() == 1) {
 245     ModuleBase_Operation* aCurrentOperation = currentOperation();
 246     if (canStopOperation(aCurrentOperation, theMessageKind)) {
 247       abortOperation(aCurrentOperation);
 248     }
 249     else
 250       aResult = false;
 251   }
 252   else {
 253     if (theMessageKind == XGUI_AbortOperationMessage) {
 254       myActiveMessageBox = createMessageBox(tr("All active operations will be aborted."));
 255       aResult = myActiveMessageBox->exec() == QMessageBox::Ok;
 256       myActiveMessageBox = 0;
 257     }
 258     else if (theMessageKind == XGUI_InformationMessage) {
 259       QString aMessage = tr("Please validate all your active operations before saving.");
 260       myActiveMessageBox = createInformationBox(aMessage);
 261       myActiveMessageBox->exec();
 262       myActiveMessageBox = 0;
 263       aResult = false; // do not perform abort
 264     }
 265     while(aResult && hasOperation()) {
 266       abortOperation(currentOperation());
 267     }
 268   }
 269   return aResult;
 270 }
 271
 272 bool XGUI_OperationMgr::commitAllOperations()
 273 {
 274   bool isCompositeCommitted = false, anOperationProcessed = false;
 275   while (hasOperation()) {
 276     ModuleBase_Operation* anOperation = currentOperation();
 277     if (XGUI_Tools::workshop(myWorkshop)->errorMgr()->isApplyEnabled()) {
 278       anOperationProcessed = commitOperation();
 279     } else {
 280       abortOperation(anOperation);
 281       anOperationProcessed = true;
 282     }
 283     ModuleBase_OperationFeature* aFOperation = dynamic_cast<ModuleBase_OperationFeature*>
 284                                                                             (anOperation);
 285     if (aFOperation) {
 286       FeaturePtr aFeature = aFOperation->feature();
 287       CompositeFeaturePtr aComposite =
 288           std::dynamic_pointer_cast<ModelAPI_CompositeFeature>(aFeature);
 289       isCompositeCommitted = aComposite.get();
 290       if (isCompositeCommitted)
 291         break;
 292     }
 293     // not processed[committed] operation might be used in composite feature,
 294     // so the while will be stopped by the previous check.
 295     // this code is not necessary, but logically should be done when the processing will not
 296     // be done for not composite feature by some reasons
 297     if (!anOperationProcessed)
 298       break;
 299   }
 300   return true;
 301 }
 302
 303 void XGUI_OperationMgr::onValidateOperation()
 304 {
 305   if (!hasOperation())
 306     return;
 307   ModuleBase_OperationFeature* aFOperation = dynamic_cast<ModuleBase_OperationFeature*>
 308                                                                           (currentOperation());
 309   if(aFOperation && aFOperation->feature().get())
 310     XGUI_Tools::workshop(myWorkshop)->errorMgr()->updateActions(aFOperation->feature());
 311 }
 312
 313 void XGUI_OperationMgr::updateApplyOfOperations(ModuleBase_Operation* theOperation)
 314 {
 315   XGUI_ErrorMgr* anErrorMgr = XGUI_Tools::workshop(myWorkshop)->errorMgr();
 316   if (theOperation) {
 317     ModuleBase_OperationFeature* aFOperation =
 318       dynamic_cast<ModuleBase_OperationFeature*>(theOperation);
 319     if (aFOperation)
 320       anErrorMgr->updateAcceptAllAction(aFOperation->feature());
 321   }
 322   else {
 323     foreach(ModuleBase_Operation* anOperation, myOperations) {
 324       if (anOperation)
 325         updateApplyOfOperations(anOperation);
 326     }
 327   }
 328   // Apply button of the current operation should also be updated
 329   onValidateOperation();
 330 }
 331
 332 bool XGUI_OperationMgr::canStopOperation(ModuleBase_Operation* theOperation,
 333                                          const XGUI_OperationMgr::XGUI_MessageKind& theMessageKind)
 334 {
 335   //in case of nested (sketch) operation no confirmation needed
 336   if (isGrantedOperation(theOperation->id()))
 337     return true;
 338   if (theOperation && theOperation->isModified()) {
 339     QString aTitle = theOperation->getDescription()->description();
 340     if (theMessageKind == XGUI_AbortOperationMessage) {
 341       QString aMessage = tr("%1 operation will be aborted.").arg(aTitle);
 342       myActiveMessageBox = createMessageBox(aMessage);
 343       bool aResult = myActiveMessageBox->exec() == QMessageBox::Ok;
 344       myActiveMessageBox = 0;
 345       return aResult;
 346     }
 347     else if (theMessageKind == XGUI_InformationMessage) {
 348       QString aMessage = tr("Please validate your %1 before saving.").arg(aTitle);
 349       myActiveMessageBox = createInformationBox(aMessage);
 350       myActiveMessageBox->exec();
 351       myActiveMessageBox = 0;
 352       return false;
 353     }
 354   }
 355   return true;
 356 }
 357
 358 void XGUI_OperationMgr::resumeOperation(ModuleBase_Operation* theOperation)
 359 {
 360   theOperation->resume();
 361 }
 362
 363 bool XGUI_OperationMgr::isGrantedOperation(const QString& theId)
 364 {
 365   bool isGranted = false;
 366
 367   QListIterator<ModuleBase_Operation*> anIt(myOperations);
 368   anIt.toBack();
 369   ModuleBase_Operation* aPreviousOperation = 0;
 370   while (anIt.hasPrevious() && !isGranted) {
 371     ModuleBase_Operation* anOp = anIt.previous();
 372     if (anOp)
 373       isGranted = anOp->isGranted(theId);
 374   }
 375   return isGranted;
 376 }
 377
 378 void XGUI_OperationMgr::setCurrentFeature(const FeaturePtr& theFeature)
 379 {
 380   SessionPtr aMgr = ModelAPI_Session::get();
 381   DocumentPtr aDoc = aMgr->activeDocument();
 382   bool aIsOp = aMgr->isOperation();
 383   if (!aIsOp)
 384     aMgr->startOperation(QString("Set current feature: %1")
 385     .arg(theFeature->getKind().c_str()).toStdString());
 386   aDoc->setCurrentFeature(theFeature, false);
 387 #ifdef DEBUG_CURRENT_FEATURE
 388   qDebug(QString("   document->setCurrentFeature(false) = %1    SET").arg(
 389          ModuleBase_Tools::objectName(
 390          ModelAPI_Session::get()->activeDocument()->currentFeature(false))).toStdString().c_str());
 391 #endif
 392
 393   if (!aIsOp)
 394     aMgr->finishOperation();
 395 }
 396
 397 bool XGUI_OperationMgr::canStartOperation(const QString& theId, bool& isCommitted)
 398 {
 399   bool aCanStart = true;
 400   isCommitted = false;
 401   ModuleBase_Operation* aCurrentOp = currentOperation();
 402   if (aCurrentOp) {
 403     bool aGranted = aCurrentOp->isGranted(theId);
 404     // the started operation is granted for the current one,
 405     // e.g. current - Sketch, started - Line
 406     if (aGranted) {
 407       aCanStart = true;
 408     }
 409     else {
 410       if (!isGrantedOperation(theId)) {
 411         // the operation is not granted in the current list of operations
 412         // e.g. Edit Parameter when Sketch, Line in Sketch is active.
 413         aCanStart = abortAllOperations();
 414       }
 415       else if (canStopOperation(aCurrentOp)) {
 416         // the started operation is granted in the parrent operation,
 417         // e.g. current - Line in Sketch, started Circle
 418         stopOperation(aCurrentOp, isCommitted);
 419       } else {
 420         aCanStart = false;
 421       }
 422     }
 423   }
 424   return aCanStart;
 425 }
 426
 427 void XGUI_OperationMgr::stopOperation(ModuleBase_Operation* theOperation, bool& isCommitted)
 428 {
 429   if (XGUI_Tools::workshop(myWorkshop)->errorMgr()->isApplyEnabled() &&
 430       theOperation->isModified()) {
 431     isCommitted = theOperation->commit();
 432   } else {
 433     isCommitted = false;
 434     abortOperation(theOperation);
 435   }
 436 }
 437
 438 void XGUI_OperationMgr::abortOperation(ModuleBase_Operation* theOperation)
 439 {
 440   ModuleBase_Operation* aCurrentOperation = currentOperation();
 441   if (theOperation == aCurrentOperation)
 442     theOperation->abort();
 443   else {
 444     // it is possible to trigger upper operation(e.g. sketch, current is sketch line)
 445     // all operation from the current to triggered should also be aborted
 446     // operations over the parameter one are not aborted(e.g. extrusion cut, sketch abort)
 447     while(hasOperation()) {
 448       ModuleBase_Operation* aCurrentOperation = currentOperation();
 449       aCurrentOperation->abort();
 450       if(theOperation == aCurrentOperation)
 451         break;
 452     }
 453   }
 454 }
 455
 456 bool XGUI_OperationMgr::commitOperation()
 457 {
 458   bool isCommitted = false;
 459   ModuleBase_Operation* anOperation = currentOperation();
 460   if (anOperation && myWorkshop->module()->canCommitOperation())
 461     isCommitted = anOperation->commit();
 462   return isCommitted;
 463 }
 464
 465 void XGUI_OperationMgr::onAbortOperation()
 466 {
 467   ModuleBase_Operation* aCurrentOperation = currentOperation();
 468   if (aCurrentOperation && canStopOperation(aCurrentOperation)) {
 469     abortOperation(aCurrentOperation);
 470   }
 471 }
 472
 473 void XGUI_OperationMgr::onAbortAllOperation()
 474 {
 475   abortAllOperations();
 476 }
 477
 478 void XGUI_OperationMgr::onBeforeOperationStarted()
 479 {
 480   ModuleBase_Operation* aCurrentOperation = dynamic_cast<ModuleBase_Operation*>(sender());
 481   if (!aCurrentOperation)
 482     return;
 483
 484   /// Set current feature and remeber old current feature
 485   ModuleBase_OperationFeature* aFOperation =
 486     dynamic_cast<ModuleBase_OperationFeature*>(aCurrentOperation);
 487   if (aFOperation) {
 488     SessionPtr aMgr = ModelAPI_Session::get();
 489     DocumentPtr aDoc = aMgr->activeDocument();
 490     // the parameter of current feature should be false, we should use all feature, not only
 491     // visible in order to correctly save the previous feature of the nested operation, where the
 492     // features can be not visible in the tree. The problem case is Edit sketch entitity(line)
 493     // in the Sketch, created in ExtrusionCut operation. The entity disappears by commit.
 494     // When sketch entity operation started, the sketch should be cashed here as the current.
 495     // Otherwise(the flag is true), the ExtrusionCut is cashed, when commit happens, the sketch
 496     // is disabled, sketch entity is disabled as extrusion cut is created earliest then sketch.
 497     // As a result the sketch disappears from the viewer.
 498     // However after commit it is displayed back.
 499     aFOperation->setPreviousCurrentFeature(aDoc->currentFeature(false));
 500
 501 #ifdef DEBUG_CURRENT_FEATURE
 502     FeaturePtr aFeature = aFOperation->feature();
 503     QString aKind = aFeature ? aFeature->getKind().c_str() : "";
 504     qDebug("");
 505     qDebug(QString("onBeforeOperationStarted() isEditOperation = %1, feature = %2")
 506             .arg(aFOperation->isEditOperation())
 507             .arg(ModuleBase_Tools::objectName(aFeature)).toStdString().c_str());
 508     qDebug(QString("   document->currentFeature(false) = %1 : DO: setPreviousCurrentFeature").arg(
 509             ModuleBase_Tools::objectName(aDoc->currentFeature(false))).toStdString().c_str());
 510 #endif
 511
 512     if (aFOperation->isEditOperation()) {// it should be performed by the feature edit only
 513       // in create operation, the current feature is changed by addFeature()
 514       aDoc->setCurrentFeature(aFOperation->feature(), false);
 515 #ifdef DEBUG_CURRENT_FEATURE
 516       qDebug(QString("   document->setCurrentFeature(false) = %1").arg(
 517              ModuleBase_Tools::objectName(aDoc->currentFeature(false))).toStdString().c_str());
 518 #endif
 519       // this is the only place where flushes must be called after setCurrentFeature for the
 520       // current moment: after this the opertion is not finished, so, the ObjectBrowser
 521       // state may be corrupted (issue #1457)
 522       static Events_Loop* aLoop = Events_Loop::loop();
 523       static Events_ID aCreateEvent = aLoop->eventByName(EVENT_OBJECT_CREATED);
 524       aLoop->flush(aCreateEvent);
 525       static Events_ID aDeleteEvent = aLoop->eventByName(EVENT_OBJECT_DELETED);
 526       aLoop->flush(aDeleteEvent);
 527     }
 528   }
 529 }
 530
 531 void XGUI_OperationMgr::onOperationStarted()
 532 {
 533   ModuleBase_Operation* aSenderOperation = dynamic_cast<ModuleBase_Operation*>(sender());
 534   updateApplyOfOperations(aSenderOperation);
 535   XGUI_Workshop* aWorkshop = XGUI_Tools::workshop(myWorkshop);
 536   aWorkshop->operationStarted(aSenderOperation);
 537 }
 538
 539 void XGUI_OperationMgr::onBeforeOperationAborted()
 540 {
 541   onBeforeOperationCommitted();
 542 }
 543
 544 void XGUI_OperationMgr::onOperationAborted()
 545 {
 546   ModuleBase_Operation* aSenderOperation = dynamic_cast<ModuleBase_Operation*>(sender());
 547   XGUI_Workshop* aWorkshop = XGUI_Tools::workshop(myWorkshop);
 548   aWorkshop->setStatusBarMessage("");
 549   emit operationAborted(aSenderOperation);
 550 }
 551
 552 void XGUI_OperationMgr::onBeforeOperationCommitted()
 553 {
 554   ModuleBase_Operation* aCurrentOperation = dynamic_cast<ModuleBase_Operation*>(sender());
 555   if (!aCurrentOperation)
 556     return;
 557
 558   /// Restore the previous current feature
 559   ModuleBase_OperationFeature* aFOperation =
 560     dynamic_cast<ModuleBase_OperationFeature*>(aCurrentOperation);
 561   if (aFOperation) {
 562 #ifdef DEBUG_CURRENT_FEATURE
 563     QString aKind = aFOperation->feature()->getKind().c_str();
 564     qDebug(QString("onBeforeOperationCommitted() isEditOperation = %1, feature = %2")
 565             .arg(aFOperation->isEditOperation())
 566             .arg(ModuleBase_Tools::objectName(aFOperation->feature())).toStdString().c_str());
 567     qDebug(QString("   document->currentFeature(false) = %1").arg(
 568             ModuleBase_Tools::objectName(
 569             ModelAPI_Session::get()->activeDocument()->currentFeature(false)))
 570             .toStdString().c_str());
 571 #endif
 572
 573     if (aFOperation->isEditOperation()) {
 574       /// Restore the previous current feature
 575       setCurrentFeature(aFOperation->previousCurrentFeature());
 576     }
 577     else { // create operation
 578       // the Top created feature should stays the current. In nested operations,
 579       // like Line in the Sketch or
 580       // Sketch in ExtrusionCut, a previous feature should be restored on commit.
 581       // It is performed here
 582       // in order to perform it in the current transaction without opening a new one.
 583       if (myOperations.front() != aFOperation)
 584         setCurrentFeature(aFOperation->previousCurrentFeature());
 585     }
 586     ModuleBase_IModule* aModule = myWorkshop->module();
 587     if (aModule)
 588       aModule->beforeOperationStopped(aFOperation);
 589   }
 590 }
 591
 592 void XGUI_OperationMgr::onOperationCommitted()
 593 {
 594   // apply state for all features from the stack of operations should be updated
 595   updateApplyOfOperations();
 596
 597   ModuleBase_Operation* aSenderOperation = dynamic_cast<ModuleBase_Operation*>(sender());
 598   emit operationCommitted(aSenderOperation);
 599 }
 600
 601 void XGUI_OperationMgr::onOperationResumed()
 602 {
 603   ModuleBase_Operation* aSenderOperation = dynamic_cast<ModuleBase_Operation*>(sender());
 604   emit operationResumed(aSenderOperation);
 605 }
 606
 607 void XGUI_OperationMgr::onOperationStopped()
 608 {
 609   ModuleBase_Operation* aSenderOperation = dynamic_cast<ModuleBase_Operation*>(sender());
 610   ModuleBase_Operation* aCurrentOperation = currentOperation();
 611   if (!aSenderOperation || !aCurrentOperation || aSenderOperation != aCurrentOperation)
 612     return;
 613
 614   myOperations.removeAll(aCurrentOperation);
 615   aCurrentOperation->deleteLater();
 616
 617   emit operationStopped(aCurrentOperation);
 618
 619   // get last operation which can be resumed
 620   ModuleBase_Operation* aResultOp = 0;
 621   QListIterator<ModuleBase_Operation*> anIt(myOperations);
 622   anIt.toBack();
 623   while (anIt.hasPrevious()) {
 624     ModuleBase_Operation* anOp = anIt.previous();
 625     if (anOp) {
 626       aResultOp = anOp;
 627       break;
 628     }
 629   }
 630   if (aResultOp) {
 631     //bool isModified = aCurrentOperation->isModified();
 632     //aResultOp->setIsModified(aResultOp->isModified() || isModified);
 633     resumeOperation(aResultOp);
 634     onValidateOperation();
 635   }
 636 }
 637
 638 bool XGUI_OperationMgr::onKeyReleased(QObject *theObject, QKeyEvent* theEvent)
 639 {
 640   bool isAccepted = false;
 641
 642   // Let the manager decide what to do with the given key combination.
 643   ModuleBase_Operation* anOperation = currentOperation();
 644   switch (theEvent->key()) {
 645     case Qt::Key_Tab:
 646     case Qt::Key_Backtab:
 647     {
 648       ModuleBase_Operation* aOperation = currentOperation();
 649       if (aOperation) {
 650         ModuleBase_IPropertyPanel* aPanel = anOperation->propertyPanel();
 651         if (aPanel) {
 652           QWidget* aFocusedWidget = qApp->focusWidget();
 653           bool isPPChildObject = aFocusedWidget && isChildObject(aFocusedWidget, aPanel);
 654           if (!isPPChildObject) {
 655             // check for case when the operation is started but property panel is not filled
 656             XGUI_PropertyPanel* aPP = dynamic_cast<XGUI_PropertyPanel*>(aPanel);
 657             aPP->setFocusNextPrevChild(theEvent->key() == Qt::Key_Tab);
 658             isAccepted = true;
 659           }
 660         }
 661       }
 662     }
 663     break;
 664     case Qt::Key_Return:
 665     case Qt::Key_Enter: {
 666       isAccepted = onProcessEnter(theObject);
 667     }
 668     break;
 669     case Qt::Key_N:
 670     case Qt::Key_P: {
 671       bool noModifiers = (theEvent->modifiers() == Qt::NoModifier);
 672       if (noModifiers) {
 673         ModuleBase_IViewer* aViewer = myWorkshop->viewer();
 674         Handle(AIS_InteractiveContext) aContext = aViewer->AISContext();
 675         if (!aContext.IsNull()) {
 676           Handle(V3d_View) aView = aViewer->activeView();
 677           if ((theEvent->key() == Qt::Key_N))
 678             aContext->HilightNextDetected(aView);
 679           else if ((theEvent->key() == Qt::Key_P))
 680             aContext->HilightPreviousDetected(aView);
 681           aViewer->updateHighlight();
 682           isAccepted = true;
 683         }
 684       }
 685       }
 686       break;
 687    case Qt::Key_H:
 688      if ((theEvent->modifiers() == Qt::NoModifier))
 689       myWorkshop->viewer()->hideSelectionHighlight();
 690      break;
 691    default:
 692       isAccepted = false;
 693       break;
 694   }
 695   //if(anOperation) {
 696   //  anOperation->keyReleased(theEvent->key());
 697   //}
 698   return isAccepted;
 699 }
 700
 701 bool XGUI_OperationMgr::onKeyPressed(QObject *theObject, QKeyEvent* theEvent)
 702 {
 703   // Let the manager decide what to do with the given key combination.
 704   ModuleBase_Operation* anOperation = currentOperation();
 705   bool isAccepted = false;
 706   switch (theEvent->key()) {
 707     case Qt::Key_Escape: {
 708       // processing in message box
 709       if (myActiveMessageBox)
 710       {
 711         myActiveMessageBox->reject();
 712         isAccepted = true;
 713       }
 714       // processing in the active widget
 715       ModuleBase_Operation* aOperation = currentOperation();
 716       if (!isAccepted && aOperation) {
 717         ModuleBase_IPropertyPanel* aPanel = aOperation->propertyPanel();
 718         ModuleBase_ModelWidget* anActiveWgt = aPanel->activeWidget();
 719         if (anActiveWgt)
 720         {
 721           isAccepted = anActiveWgt && anActiveWgt->processAction(ActionEscape);
 722           if (isAccepted) {
 723             ModuleBase_OperationFeature* aFOperation =
 724               dynamic_cast<ModuleBase_OperationFeature*>(currentOperation());
 725             if (aFOperation)
 726               aFOperation->setNeedToBeAborted(true);
 727           }
 728         }
 729       }
 730       if (!isAccepted)
 731       {
 732         XGUI_ActiveControlSelector* anActiveSelector =
 733           XGUI_Tools::workshop(myWorkshop)->activeControlMgr()->activeSelector();
 734         if (anActiveSelector && anActiveSelector->getType() == XGUI_FacesPanelSelector::Type())
 735           isAccepted = XGUI_Tools::workshop(myWorkshop)->facesPanel()->processAction(ActionEscape);
 736       }
 737       // default Escape button functionality
 738       if (!isAccepted && aOperation) {
 739         onAbortOperation();
 740         isAccepted = true;
 741       }
 742     }
 743     break;
 744     case Qt::Key_H:
 745       if ((theEvent->modifiers() == Qt::NoModifier))
 746         myWorkshop->viewer()->showSelectionHighlight();
 747       break;
 748   }
 749   return isAccepted;
 750 }
 751
 752 bool XGUI_OperationMgr::onProcessEnter(QObject* theObject)
 753 {
 754   bool isAccepted = false;
 755   ModuleBase_Operation* aOperation = currentOperation();
 756   // to avoid enter processing when operation has not been started yet
 757   if (!aOperation)
 758     return isAccepted;
 759   ModuleBase_IPropertyPanel* aPanel = aOperation->propertyPanel();
 760   if (!aPanel)
 761     return isAccepted;
 762   // the next code is obsolete as we want to process Enter in property panel always
 763   // only property panel enter is processed in order to do not process enter in application dialogs
 764   //bool isPPChild = isChildObject(theObject, aPanel);
 765   //if (!isPPChild)
 766   //  return isAccepted;
 767
 768   ModuleBase_ModelWidget* anActiveWgt = aPanel->activeWidget();
 769   bool isAborted = false;
 770   if (!anActiveWgt) {
 771     QWidget* aFocusWidget = aPanel->focusWidget();
 772     QToolButton* aCancelBtn =
 773       dynamic_cast<XGUI_PropertyPanel*>(aPanel)->findButton(PROP_PANEL_CANCEL);
 774     if (aFocusWidget && aCancelBtn && aFocusWidget == aCancelBtn) {
 775       abortOperation(aOperation);
 776       isAccepted = true;
 777       isAborted = true;
 778     }
 779   }
 780   if (!isAborted) {
 781     isAccepted = anActiveWgt && anActiveWgt->processAction(ActionEnter);
 782     if (!isAccepted) {
 783       isAccepted =
 784         myWorkshop->module()->processEnter(anActiveWgt ? anActiveWgt->attributeID() : "");
 785       if (!isAccepted) {
 786         /// functionality is similar to Apply click
 787         ModuleBase_OperationFeature* aFOperation =
 788           dynamic_cast<ModuleBase_OperationFeature*>(currentOperation());
 789         if (!aFOperation ||
 790             myWorkshop->module()->getFeatureError(aFOperation->feature()).isEmpty()) {
 791           // key released is emitted to apply the current value to the model
 792           // if it was modified in PP
 793           emit keyEnterReleased();
 794           commitOperation();
 795           isAccepted = true;
 796         }
 797         else
 798           isAccepted = false;
 799       }
 800     }
 801   }
 802   return isAccepted;
 803 }
 804
 805 bool editorControl(QObject* theObject)
 806 {
 807   QLineEdit* aLineEdit = dynamic_cast<QLineEdit*>(theObject);
 808   return aLineEdit;
 809 }
 810
 811 bool XGUI_OperationMgr::onProcessDelete(QObject* theObject)
 812 {
 813   bool isAccepted = false;
 814   ModuleBase_Operation* aOperation = currentOperation();
 815   ModuleBase_ModelWidget* anActiveWgt = 0;
 816   // firstly the widget should process Delete action
 817   ModuleBase_IPropertyPanel* aPanel;
 818   bool isPPChildObject = false;
 819   if (aOperation) {
 820     aPanel = aOperation->propertyPanel();
 821     if (aPanel) {
 822       isPPChildObject = isChildObject(theObject, aPanel);
 823       // process delete in active widget only if delete sender is child of property panel
 824       // it is necessary for the case when OB is shown, user perform selection and click Delete
 825       if (isPPChildObject) {
 826         anActiveWgt = aPanel->activeWidget();
 827         if (anActiveWgt) {
 828           isAccepted = anActiveWgt->processAction(ActionDelete);
 829         }
 830       }
 831     }
 832   }
 833   if (!isAccepted)
 834   {
 835     XGUI_ActiveControlSelector* anActiveSelector =
 836       XGUI_Tools::workshop(myWorkshop)->activeControlMgr()->activeSelector();
 837     if (anActiveSelector && anActiveSelector->getType() == XGUI_FacesPanelSelector::Type())
 838       isAccepted = XGUI_Tools::workshop(myWorkshop)->facesPanel()->processAction(ActionDelete);
 839   }
 840   if (!isAccepted) {
 841     // after widget, object browser and viewer should process delete
 842     /// other widgets such as line edit controls should not lead to
 843     /// processing delete by workshop
 844     XGUI_ObjectsBrowser* aBrowser = XGUI_Tools::workshop(myWorkshop)->objectBrowser();
 845     QWidget* aViewPort = myWorkshop->viewer()->activeViewPort();
 846     bool isToDeleteObject = false;
 847     XGUI_Workshop* aWorkshop = XGUI_Tools::workshop(myWorkshop);
 848     XGUI_ContextMenuMgr* aContextMenuMgr = aWorkshop->contextMenuMgr();
 849     if (theObject == aBrowser->treeView()) {
 850       aContextMenuMgr->updateObjectBrowserMenu();
 851       isToDeleteObject = aContextMenuMgr->action("DELETE_CMD")->isEnabled();
 852     }
 853     else if (isChildObject(theObject, aViewPort)) {
 854       aContextMenuMgr->updateViewerMenu();
 855       isToDeleteObject = aContextMenuMgr->action("DELETE_CMD")->isEnabled();
 856     }
 857     else if (isPPChildObject) {
 858       // property panel child object is processed to process delete performed on Apply button of PP
 859       isToDeleteObject = true;
 860     }
 861     else if (editorControl(theObject)) {
 862       isToDeleteObject = false; /// Line Edit of Rename operation in ObjectBrowser
 863       isAccepted = true;
 864     }
 865
 866     if (isToDeleteObject) {
 867       aWorkshop->deleteObjects();
 868       isAccepted = true;
 869     }
 870   }
 871
 872   return isAccepted;
 873 }
 874
 875 bool XGUI_OperationMgr::isChildObject(const QObject* theObject, const QObject* theParent)
 876 {
 877   bool isPPChild = false;
 878   if (theParent && theObject) {
 879     QObject* aParent = (QObject*)theObject;
 880     while (aParent ) {
 881       isPPChild = aParent == theParent;
 882       if (isPPChild)
 883         break;
 884       aParent = aParent->parent();
 885     }
 886   }
 887   return isPPChild;
 888 }
 889
 890 QMessageBox* XGUI_OperationMgr::createMessageBox(const QString& theMessage)
 891 {
 892   QMessageBox * aMessageBox = new QMessageBox(QMessageBox::Question,
 893     QObject::tr("Abort operation"), theMessage, QMessageBox::Ok | QMessageBox::Cancel,
 894     qApp->activeWindow());
 895   aMessageBox->setDefaultButton(QMessageBox::Cancel);
 896   aMessageBox->setEscapeButton(QMessageBox::No); // operation manager should process Esc key
 897
 898   return aMessageBox;
 899 }
 900
 901 QMessageBox* XGUI_OperationMgr::createInformationBox(const QString& theMessage)
 902 {
 903   QMessageBox * aMessageBox = new QMessageBox(QMessageBox::Question,
 904     QObject::tr("Validate operation"), theMessage, QMessageBox::Ok,
 905     qApp->activeWindow());
 906   aMessageBox->setDefaultButton(QMessageBox::Ok);
 907   aMessageBox->setEscapeButton(QMessageBox::No); // operation manager should process Esc key
 908
 909   return aMessageBox;
 910 }