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 bool XGUI_OperationMgr::canStopOperation(ModuleBase_Operation* theOperation,
 320                                          const XGUI_OperationMgr::XGUI_MessageKind& theMessageKind)
 321 {
 322   //in case of nested (sketch) operation no confirmation needed
 323   if (isGrantedOperation(theOperation->id()))
 324     return true;
 325   if (theOperation && theOperation->isModified()) {
 326     if (theMessageKind == XGUI_AbortOperationMessage) {
 327       QString aMessage = tr("%1 operation will be aborted.").arg(theOperation->id());
 328       int anAnswer = QMessageBox::question(qApp->activeWindow(),
 329                                            tr("Abort operation"),
 330                                            aMessage,
 331                                            QMessageBox::Ok | QMessageBox::Cancel,
 332                                            QMessageBox::Cancel);
 333       return anAnswer == QMessageBox::Ok;
 334     }
 335     else if (theMessageKind == XGUI_InformationMessage) {
 336       QString aMessage = tr("Please validate your %1 before saving.").arg(theOperation->id());
 337       QMessageBox::question(qApp->activeWindow(),
 338                             tr("Validate operation"),
 339                             aMessage,
 340                             QMessageBox::Ok,
 341                             QMessageBox::Ok);
 342       return false;
 343     }
 344   }
 345   return true;
 346 }
 347
 348 void XGUI_OperationMgr::resumeOperation(ModuleBase_Operation* theOperation)
 349 {
 350   theOperation->resume();
 351 }
 352
 353 bool XGUI_OperationMgr::isGrantedOperation(const QString& theId)
 354 {
 355   bool isGranted = false;
 356
 357   QListIterator<ModuleBase_Operation*> anIt(myOperations);
 358   anIt.toBack();
 359   ModuleBase_Operation* aPreviousOperation = 0;
 360   while (anIt.hasPrevious() && !isGranted) {
 361     ModuleBase_Operation* anOp = anIt.previous();
 362     if (anOp)
 363       isGranted = anOp->isGranted(theId);
 364   }
 365   return isGranted;
 366 }
 367
 368 void XGUI_OperationMgr::setCurrentFeature(const FeaturePtr& theFeature)
 369 {
 370   SessionPtr aMgr = ModelAPI_Session::get();
 371   DocumentPtr aDoc = aMgr->activeDocument();
 372   bool aIsOp = aMgr->isOperation();
 373   if (!aIsOp)
 374     aMgr->startOperation(QString("Set current feature: %1")
 375     .arg(theFeature->getKind().c_str()).toStdString());
 376   aDoc->setCurrentFeature(theFeature, false);
 377 #ifdef DEBUG_CURRENT_FEATURE
 378   qDebug(QString("   document->setCurrentFeature(false) = %1    SET").arg(
 379          ModuleBase_Tools::objectName(
 380          ModelAPI_Session::get()->activeDocument()->currentFeature(false))).toStdString().c_str());
 381 #endif
 382
 383   if (!aIsOp)
 384     aMgr->finishOperation();
 385 }
 386
 387 bool XGUI_OperationMgr::canStartOperation(const QString& theId, bool& isCommitted)
 388 {
 389   bool aCanStart = true;
 390   isCommitted = false;
 391   ModuleBase_Operation* aCurrentOp = currentOperation();
 392   if (aCurrentOp) {
 393     bool aGranted = aCurrentOp->isGranted(theId);
 394     // the started operation is granted for the current one,
 395     // e.g. current - Sketch, started - Line
 396     if (aGranted) {
 397       aCanStart = true;
 398     }
 399     else {
 400       if (!isGrantedOperation(theId)) {
 401         // the operation is not granted in the current list of operations
 402         // e.g. Edit Parameter when Sketch, Line in Sketch is active.
 403         aCanStart = abortAllOperations();
 404       }
 405       else if (canStopOperation(aCurrentOp)) {
 406         // the started operation is granted in the parrent operation,
 407         // e.g. current - Line in Sketch, started Circle
 408         stopOperation(aCurrentOp, isCommitted);
 409       } else {
 410         aCanStart = false;
 411       }
 412     }
 413   }
 414   return aCanStart;
 415 }
 416
 417 void XGUI_OperationMgr::stopOperation(ModuleBase_Operation* theOperation, bool& isCommitted)
 418 {
 419   if (XGUI_Tools::workshop(myWorkshop)->errorMgr()->isApplyEnabled() && theOperation->isModified())
 420     isCommitted = theOperation->commit();
 421   else {
 422     isCommitted = false;
 423     abortOperation(theOperation);
 424   }
 425 }
 426
 427 void XGUI_OperationMgr::abortOperation(ModuleBase_Operation* theOperation)
 428 {
 429   ModuleBase_Operation* aCurrentOperation = currentOperation();
 430   if (theOperation == aCurrentOperation)
 431     theOperation->abort();
 432   else {
 433     // it is possible to trigger upper operation(e.g. sketch, current is sketch line)
 434     // all operation from the current to triggered should also be aborted
 435     // operations over the parameter one are not aborted(e.g. extrusion cut, sketch abort)
 436     while(hasOperation()) {
 437       ModuleBase_Operation* aCurrentOperation = currentOperation();
 438       aCurrentOperation->abort();
 439       if(theOperation == aCurrentOperation)
 440         break;
 441     }
 442   }
 443 }
 444
 445 bool XGUI_OperationMgr::commitOperation()
 446 {
 447   bool isCommitted = false;
 448   ModuleBase_Operation* anOperation = currentOperation();
 449   if (anOperation && myWorkshop->module()->canCommitOperation())
 450     isCommitted = anOperation->commit();
 451   return isCommitted;
 452 }
 453
 454 void XGUI_OperationMgr::onAbortOperation()
 455 {
 456   ModuleBase_Operation* aCurrentOperation = currentOperation();
 457   if (aCurrentOperation && canStopOperation(aCurrentOperation)) {
 458     abortOperation(aCurrentOperation);
 459   }
 460 }
 461
 462 void XGUI_OperationMgr::onAbortAllOperation()
 463 {
 464   abortAllOperations();
 465 }
 466
 467 void XGUI_OperationMgr::onBeforeOperationStarted()
 468 {
 469   ModuleBase_Operation* aCurrentOperation = dynamic_cast<ModuleBase_Operation*>(sender());
 470   if (!aCurrentOperation)
 471     return;
 472
 473   /// Set current feature and remeber old current feature
 474   ModuleBase_OperationFeature* aFOperation =
 475     dynamic_cast<ModuleBase_OperationFeature*>(aCurrentOperation);
 476   if (aFOperation) {
 477     SessionPtr aMgr = ModelAPI_Session::get();
 478     DocumentPtr aDoc = aMgr->activeDocument();
 479     // the parameter of current feature should be false, we should use all feature, not only
 480     // visible in order to correctly save the previous feature of the nested operation, where the
 481     // features can be not visible in the tree. The problem case is Edit sketch entitity(line)
 482     // in the Sketch, created in ExtrusionCut operation. The entity disappears by commit.
 483     // When sketch entity operation started, the sketch should be cashed here as the current.
 484     // Otherwise(the flag is true), the ExtrusionCut is cashed, when commit happens, the sketch
 485     // is disabled, sketch entity is disabled as extrusion cut is created earliest then sketch.
 486     // As a result the sketch disappears from the viewer.
 487     // However after commit it is displayed back.
 488     aFOperation->setPreviousCurrentFeature(aDoc->currentFeature(false));
 489
 490 #ifdef DEBUG_CURRENT_FEATURE
 491     FeaturePtr aFeature = aFOperation->feature();
 492     QString aKind = aFeature ? aFeature->getKind().c_str() : "";
 493     qDebug("");
 494     qDebug(QString("onBeforeOperationStarted() isEditOperation = %1, feature = %2")
 495             .arg(aFOperation->isEditOperation())
 496             .arg(ModuleBase_Tools::objectName(aFeature)).toStdString().c_str());
 497     qDebug(QString("   document->currentFeature(false) = %1 : DO: setPreviousCurrentFeature").arg(
 498             ModuleBase_Tools::objectName(aDoc->currentFeature(false))).toStdString().c_str());
 499 #endif
 500
 501     if (aFOperation->isEditOperation()) {// it should be performed by the feature edit only
 502       // in create operation, the current feature is changed by addFeature()
 503       aDoc->setCurrentFeature(aFOperation->feature(), false);
 504 #ifdef DEBUG_CURRENT_FEATURE
 505       qDebug(QString("   document->setCurrentFeature(false) = %1").arg(
 506              ModuleBase_Tools::objectName(aDoc->currentFeature(false))).toStdString().c_str());
 507 #endif
 508       // this is the only place where flushes must be called after setCurrentFeature for the
 509       // current moment: after this the opertion is not finished, so, the ObjectBrowser
 510       // state may be corrupted (issue #1457)
 511       static Events_Loop* aLoop = Events_Loop::loop();
 512       static Events_ID aCreateEvent = aLoop->eventByName(EVENT_OBJECT_CREATED);
 513       aLoop->flush(aCreateEvent);
 514       static Events_ID aDeleteEvent = aLoop->eventByName(EVENT_OBJECT_DELETED);
 515       aLoop->flush(aDeleteEvent);
 516     }
 517   }
 518 }
 519
 520 void XGUI_OperationMgr::onOperationStarted()
 521 {
 522   ModuleBase_Operation* aSenderOperation = dynamic_cast<ModuleBase_Operation*>(sender());
 523   updateApplyOfOperations(aSenderOperation);
 524   XGUI_Workshop* aWorkshop = XGUI_Tools::workshop(myWorkshop);
 525   aWorkshop->operationStarted(aSenderOperation);
 526 }
 527
 528 void XGUI_OperationMgr::onBeforeOperationAborted()
 529 {
 530   onBeforeOperationCommitted();
 531 }
 532
 533 void XGUI_OperationMgr::onOperationAborted()
 534 {
 535   ModuleBase_Operation* aSenderOperation = dynamic_cast<ModuleBase_Operation*>(sender());
 536   emit operationAborted(aSenderOperation);
 537 }
 538
 539 void XGUI_OperationMgr::onBeforeOperationCommitted()
 540 {
 541   ModuleBase_Operation* aCurrentOperation = dynamic_cast<ModuleBase_Operation*>(sender());
 542   if (!aCurrentOperation)
 543     return;
 544
 545   /// Restore the previous current feature
 546   ModuleBase_OperationFeature* aFOperation =
 547     dynamic_cast<ModuleBase_OperationFeature*>(aCurrentOperation);
 548   if (aFOperation) {
 549 #ifdef DEBUG_CURRENT_FEATURE
 550     QString aKind = aFOperation->feature()->getKind().c_str();
 551     qDebug(QString("onBeforeOperationCommitted() isEditOperation = %1, feature = %2")
 552             .arg(aFOperation->isEditOperation())
 553             .arg(ModuleBase_Tools::objectName(aFOperation->feature())).toStdString().c_str());
 554     qDebug(QString("   document->currentFeature(false) = %1").arg(
 555             ModuleBase_Tools::objectName(
 556             ModelAPI_Session::get()->activeDocument()->currentFeature(false)))
 557             .toStdString().c_str());
 558 #endif
 559
 560     if (aFOperation->isEditOperation()) {
 561       /// Restore the previous current feature
 562       setCurrentFeature(aFOperation->previousCurrentFeature());
 563     }
 564     else { // create operation
 565       // the Top created feature should stays the current. In nested operations,
 566       // like Line in the Sketch or
 567       // Sketch in ExtrusionCut, a previous feature should be restored on commit.
 568       // It is performed here
 569       // in order to perform it in the current transaction without opening a new one.
 570       if (myOperations.front() != aFOperation)
 571         setCurrentFeature(aFOperation->previousCurrentFeature());
 572     }
 573     ModuleBase_IModule* aModule = myWorkshop->module();
 574     if (aModule)
 575       aModule->beforeOperationStopped(aFOperation);
 576   }
 577 }
 578
 579 void XGUI_OperationMgr::onOperationCommitted()
 580 {
 581   // apply state for all features from the stack of operations should be updated
 582   updateApplyOfOperations();
 583
 584   ModuleBase_Operation* aSenderOperation = dynamic_cast<ModuleBase_Operation*>(sender());
 585   emit operationCommitted(aSenderOperation);
 586 }
 587
 588 void XGUI_OperationMgr::onOperationResumed()
 589 {
 590   ModuleBase_Operation* aSenderOperation = dynamic_cast<ModuleBase_Operation*>(sender());
 591   emit operationResumed(aSenderOperation);
 592 }
 593
 594 void XGUI_OperationMgr::onOperationStopped()
 595 {
 596   ModuleBase_Operation* aSenderOperation = dynamic_cast<ModuleBase_Operation*>(sender());
 597   ModuleBase_Operation* aCurrentOperation = currentOperation();
 598   if (!aSenderOperation || !aCurrentOperation || aSenderOperation != aCurrentOperation)
 599     return;
 600
 601   myOperations.removeAll(aCurrentOperation);
 602   aCurrentOperation->deleteLater();
 603
 604   emit operationStopped(aCurrentOperation);
 605
 606   // get last operation which can be resumed
 607   ModuleBase_Operation* aResultOp = 0;
 608   QListIterator<ModuleBase_Operation*> anIt(myOperations);
 609   anIt.toBack();
 610   while (anIt.hasPrevious()) {
 611     ModuleBase_Operation* anOp = anIt.previous();
 612     if (anOp) {
 613       aResultOp = anOp;
 614       break;
 615     }
 616   }
 617   if (aResultOp) {
 618     bool isModified = aCurrentOperation->isModified();
 619     aResultOp->setIsModified(aResultOp->isModified() || isModified);
 620     resumeOperation(aResultOp);
 621     onValidateOperation();
 622   }
 623 }
 624
 625 bool XGUI_OperationMgr::onKeyReleased(QObject *theObject, QKeyEvent* theEvent)
 626 {
 627   // Let the manager decide what to do with the given key combination.
 628   ModuleBase_Operation* anOperation = currentOperation();
 629   bool isAccepted = false;
 630   switch (theEvent->key()) {
 631     case Qt::Key_Escape: {
 632       ModuleBase_Operation* aOperation = currentOperation();
 633       if (aOperation) {
 634         onAbortOperation();
 635         isAccepted = true;
 636       }
 637     }
 638     break;
 639     case Qt::Key_Tab:
 640     case Qt::Key_Backtab:
 641     {
 642       ModuleBase_Operation* aOperation = currentOperation();
 643       if (aOperation) {
 644         ModuleBase_IPropertyPanel* aPanel = anOperation->propertyPanel();
 645         if (aPanel) {
 646           QWidget* aFocusedWidget = qApp->focusWidget();
 647           bool isPPChildObject = aFocusedWidget && isChildObject(aFocusedWidget, aPanel);
 648           if (!isPPChildObject) {
 649             // check for case when the operation is started but property panel is not filled
 650             XGUI_PropertyPanel* aPP = dynamic_cast<XGUI_PropertyPanel*>(aPanel);
 651             aPP->setFocusNextPrevChild(theEvent->key() == Qt::Key_Tab);
 652             isAccepted = true;
 653           }
 654         }
 655       }
 656     }
 657     break;
 658     case Qt::Key_Return:
 659     case Qt::Key_Enter: {
 660       isAccepted = onProcessEnter(theObject);
 661     }
 662     break;
 663     case Qt::Key_N:
 664     case Qt::Key_P: {
 665       bool noModifiers = (theEvent->modifiers() == Qt::NoModifier);
 666       if (noModifiers) {
 667         ModuleBase_IViewer* aViewer = myWorkshop->viewer();
 668         Handle(AIS_InteractiveContext) aContext = aViewer->AISContext();
 669         if (!aContext.IsNull()) {
 670           Handle(V3d_View) aView = aViewer->activeView();
 671           if ((theEvent->key() == Qt::Key_N))
 672             aContext->HilightNextDetected(aView);
 673           else if ((theEvent->key() == Qt::Key_P))
 674             aContext->HilightPreviousDetected(aView);
 675         }
 676       }
 677     }
 678     break;
 679     break;
 680     default:
 681       isAccepted = false;
 682       break;
 683   }
 684   //if(anOperation) {
 685   //  anOperation->keyReleased(theEvent->key());
 686   //}
 687   return isAccepted;
 688 }
 689
 690 bool XGUI_OperationMgr::onProcessEnter(QObject* theObject)
 691 {
 692   bool isAccepted = false;
 693   ModuleBase_Operation* aOperation = currentOperation();
 694   // to avoid enter processing when operation has not been started yet
 695   if (!aOperation)
 696     return isAccepted;
 697   ModuleBase_IPropertyPanel* aPanel = aOperation->propertyPanel();
 698   // the next code is obsolete as we want to process Enter in property panel always
 699   // only property panel enter is processed in order to do not process enter in application dialogs
 700   //bool isPPChild = isChildObject(theObject, aPanel);
 701   //if (!isPPChild)
 702   //  return isAccepted;
 703
 704   ModuleBase_ModelWidget* anActiveWgt = aPanel->activeWidget();
 705   bool isAborted = false;
 706   if (!anActiveWgt) {
 707     QWidget* aFocusWidget = aPanel->focusWidget();
 708     QToolButton* aCancelBtn =
 709       dynamic_cast<XGUI_PropertyPanel*>(aPanel)->findButton(PROP_PANEL_CANCEL);
 710     if (aFocusWidget && aCancelBtn && aFocusWidget == aCancelBtn) {
 711       abortOperation(aOperation);
 712       isAccepted = true;
 713       isAborted = true;
 714     }
 715   }
 716   if (!isAborted) {
 717     isAccepted = anActiveWgt && anActiveWgt->processEnter();
 718     if (!isAccepted) {
 719       isAccepted =
 720         myWorkshop->module()->processEnter(anActiveWgt ? anActiveWgt->attributeID() : "");
 721       if (!isAccepted) {
 722         /// functionality is similar to Apply click
 723         ModuleBase_OperationFeature* aFOperation =
 724           dynamic_cast<ModuleBase_OperationFeature*>(currentOperation());
 725         if (!aFOperation ||
 726             myWorkshop->module()->getFeatureError(aFOperation->feature()).isEmpty()) {
 727           // key released is emitted to apply the current value to the model
 728           // if it was modified in PP
 729           emit keyEnterReleased();
 730           commitOperation();
 731           isAccepted = true;
 732         }
 733         else
 734           isAccepted = false;
 735       }
 736     }
 737   }
 738   return isAccepted;
 739 }
 740
 741 bool editorControl(QObject* theObject)
 742 {
 743   QLineEdit* aLineEdit = dynamic_cast<QLineEdit*>(theObject);
 744   return aLineEdit;
 745 }
 746
 747 bool XGUI_OperationMgr::onProcessDelete(QObject* theObject)
 748 {
 749   bool isAccepted = false;
 750   ModuleBase_Operation* aOperation = currentOperation();
 751   ModuleBase_ModelWidget* anActiveWgt = 0;
 752   // firstly the widget should process Delete action
 753   ModuleBase_IPropertyPanel* aPanel;
 754   bool isPPChildObject = false;
 755   if (aOperation) {
 756     aPanel = aOperation->propertyPanel();
 757     if (aPanel) {
 758       isPPChildObject = isChildObject(theObject, aPanel);
 759       // process delete in active widget only if delete sender is child of property panel
 760       // it is necessary for the case when OB is shown, user perform selection and click Delete
 761       if (isPPChildObject) {
 762         anActiveWgt = aPanel->activeWidget();
 763         if (anActiveWgt) {
 764           isAccepted = anActiveWgt->processDelete();
 765         }
 766       }
 767     }
 768   }
 769   if (!isAccepted) {
 770     // after widget, object browser and viewer should process delete
 771     /// other widgets such as line edit controls should not lead to
 772     /// processing delete by workshop
 773     XGUI_ObjectsBrowser* aBrowser = XGUI_Tools::workshop(myWorkshop)->objectBrowser();
 774     QWidget* aViewPort = myWorkshop->viewer()->activeViewPort();
 775     bool isToDeleteObject = false;
 776     XGUI_Workshop* aWorkshop = XGUI_Tools::workshop(myWorkshop);
 777     XGUI_ContextMenuMgr* aContextMenuMgr = aWorkshop->contextMenuMgr();
 778     if (theObject == aBrowser->treeView()) {
 779       aContextMenuMgr->updateObjectBrowserMenu();
 780       isToDeleteObject = aContextMenuMgr->action("DELETE_CMD")->isEnabled();
 781     }
 782     else if (isChildObject(theObject, aViewPort)) {
 783       aContextMenuMgr->updateViewerMenu();
 784       isToDeleteObject = aContextMenuMgr->action("DELETE_CMD")->isEnabled();
 785     }
 786     else if (isPPChildObject) {
 787       // property panel child object is processed to process delete performed on Apply button of PP
 788       isToDeleteObject = true;
 789     }
 790     else if (editorControl(theObject)) {
 791       isToDeleteObject = false; /// Line Edit of Rename operation in ObjectBrowser
 792       isAccepted = true;
 793     }
 794
 795     if (isToDeleteObject) {
 796       aWorkshop->deleteObjects();
 797       isAccepted = true;
 798     }
 799   }
 800
 801   return isAccepted;
 802 }
 803
 804 bool XGUI_OperationMgr::isChildObject(const QObject* theObject, const QObject* theParent)
 805 {
 806   bool isPPChild = false;
 807   if (theParent && theObject) {
 808     QObject* aParent = (QObject*)theObject;
 809     while (aParent ) {
 810       isPPChild = aParent == theParent;
 811       if (isPPChild)
 812         break;
 813       aParent = aParent->parent();
 814     }
 815   }
 816   return isPPChild;
 817 }