Salome HOME
Preparations for Split operation. It includes:
[modules/shaper.git] / src / XGUI / XGUI_Workshop.cpp
old mode 100644 (file)
new mode 100755 (executable)
index b46d8d6..fd3b111
@@ -4,6 +4,7 @@
 #include "XGUI_Workshop.h"
 
 #include "XGUI_ActionsMgr.h"
+#include "XGUI_MenuMgr.h"
 #include "XGUI_ColorDialog.h"
 #include "XGUI_ContextMenuMgr.h"
 #include "XGUI_Displayer.h"
@@ -23,6 +24,7 @@
 #include <XGUI_HistoryMenu.h>
 #include <XGUI_QtEvents.h>
 
+#ifndef HAVE_SALOME
 #include <AppElements_Button.h>
 #include <AppElements_Command.h>
 #include <AppElements_MainMenu.h>
@@ -30,6 +32,7 @@
 #include <AppElements_MenuGroupPanel.h>
 #include <AppElements_Viewer.h>
 #include <AppElements_Workbench.h>
+#endif
 
 #include <ModelAPI_AttributeDocRef.h>
 #include <ModelAPI_AttributeIntArray.h>
@@ -49,7 +52,7 @@
 //#include <PartSetPlugin_Part.h>
 
 #include <Events_Loop.h>
-#include <Events_Error.h>
+#include <Events_InfoMessage.h>
 #include <Events_LongOp.h>
 
 #include <ModuleBase_FilterFactory.h>
 #include <ModuleBase_WidgetFactory.h>
 #include <ModuleBase_OperationFeature.h>
 #include <ModuleBase_OperationAction.h>
+#include <ModuleBase_PagedContainer.h>
+#include <ModuleBase_WidgetValidated.h>
+#include <ModuleBase_ModelWidget.h>
+#include <ModuleBase_ResultPrs.h>
 
 #include <Config_Common.h>
 #include <Config_FeatureMessage.h>
@@ -71,6 +78,8 @@
 #include <Config_PointerMessage.h>
 #include <Config_PropManager.h>
 #include <Config_SelectionFilterMessage.h>
+#include <Config_DataModelReader.h>
+#include <Config_Translator.h>
 
 #include <SUIT_ResourceMgr.h>
 
@@ -78,6 +87,7 @@
 #include <QFileDialog>
 #include <QMessageBox>
 #include <QMdiSubWindow>
+#include <QMainWindow>
 #include <QPushButton>
 #include <QDockWidget>
 #include <QLayout>
 #include <dlfcn.h>
 #endif
 
+QString XGUI_Workshop::MOVE_TO_END_COMMAND = QObject::tr("Move to the end");
+
 //#define DEBUG_DELETE
+//#define DEBUG_FEATURE_NAME
+//#define DEBUG_CLEAN_HISTORY
 
 XGUI_Workshop::XGUI_Workshop(XGUI_SalomeConnector* theConnector)
     : QObject(),
@@ -111,44 +125,58 @@ XGUI_Workshop::XGUI_Workshop(XGUI_SalomeConnector* theConnector)
       myPropertyPanel(0),
       myObjectBrowser(0),
       myDisplayer(0)
+      //myViewerSelMode(TopAbs_FACE)
 {
-  myMainWindow = mySalomeConnector ? 0 : new AppElements_MainWindow();
+  mySelector = new XGUI_SelectionMgr(this);
+  myModuleConnector = new XGUI_ModuleConnector(this);
+  myOperationMgr = new XGUI_OperationMgr(this, 0);
+  ModuleBase_IWorkshop* aWorkshop = moduleConnector();
+  // Has to be defined first in order to get errors and messages from other components
+  myEventsListener = new XGUI_WorkshopListener(aWorkshop);
 
-  if (myMainWindow) {
-    SUIT_ResourceMgr* aResMgr = ModuleBase_Preferences::resourceMgr();
-    bool aCloc = aResMgr->booleanValue("language", "locale", true);
-    if (aCloc)
-      QLocale::setDefault( QLocale::c() );
-    else 
-      QLocale::setDefault( QLocale::system() );
+#ifndef HAVE_SALOME
+  myMainWindow = new AppElements_MainWindow();
+
+  SUIT_ResourceMgr* aResMgr = ModuleBase_Preferences::resourceMgr();
+  bool aCloc = aResMgr->booleanValue("language", "locale", true);
+  if (aCloc)
+    QLocale::setDefault( QLocale::c() );
+  else 
+    QLocale::setDefault( QLocale::system() );
+#endif
+  QString aPath = Config_XMLReader::pluginConfigFile().c_str();
+  QDir aDir(aPath);
+
+  // Load translations
+  QStringList aFilters;
+  aFilters << "*_en.ts";
+  QStringList aTsFiles = aDir.entryList(aFilters, QDir::Files);
+  foreach(QString aFileName, aTsFiles) {
+    Config_Translator::load(aFileName.toStdString());
   }
 
+  myDataModelXMLReader = new Config_DataModelReader();
+  //myDataModelXMLReader->readAll();
+
   myDisplayer = new XGUI_Displayer(this);
 
-  mySelector = new XGUI_SelectionMgr(this);
-  //connect(mySelector, SIGNAL(selectionChanged()), this, SLOT(updateModuleCommands()));
+  connect(mySelector, SIGNAL(selectionChanged()), this, SLOT(updateCommandStatus()));
 
-  myOperationMgr = new XGUI_OperationMgr(this, 0);
   myActionsMgr = new XGUI_ActionsMgr(this);
+  myMenuMgr = new XGUI_MenuMgr(this);
   myErrorDlg = new XGUI_ErrorDialog(QApplication::desktop());
   myContextMenuMgr = new XGUI_ContextMenuMgr(this);
   connect(myContextMenuMgr, SIGNAL(actionTriggered(const QString&, bool)), this,
           SLOT(onContextMenuCommand(const QString&, bool)));
 
   myViewerProxy = new XGUI_ViewerProxy(this);
-  connect(myViewerProxy, SIGNAL(selectionChanged()),
-          myActionsMgr,  SLOT(updateOnViewSelection()));
-
-  myModuleConnector = new XGUI_ModuleConnector(this);
+  //connect(myViewerProxy, SIGNAL(selectionChanged()),
+  //        myActionsMgr,  SLOT(updateOnViewSelection()));
 
-  ModuleBase_IWorkshop* aWorkshop = moduleConnector();
   myOperationMgr->setWorkshop(aWorkshop);
 
   myErrorMgr = new XGUI_ErrorMgr(this, aWorkshop);
-  myEventsListener = new XGUI_WorkshopListener(aWorkshop);
 
-  connect(myOperationMgr, SIGNAL(operationStarted(ModuleBase_Operation*)), 
-          SLOT(onOperationStarted(ModuleBase_Operation*)));
   connect(myOperationMgr, SIGNAL(operationResumed(ModuleBase_Operation*)),
           SLOT(onOperationResumed(ModuleBase_Operation*)));
   connect(myOperationMgr, SIGNAL(operationStopped(ModuleBase_Operation*)),
@@ -157,19 +185,19 @@ XGUI_Workshop::XGUI_Workshop(XGUI_SalomeConnector* theConnector)
           SLOT(onOperationCommitted(ModuleBase_Operation*)));
   connect(myOperationMgr, SIGNAL(operationAborted(ModuleBase_Operation*)), 
           SLOT(onOperationAborted(ModuleBase_Operation*)));
-  //connect(myOperationMgr, SIGNAL(validationStateChanged(bool)), 
-  //        myErrorMgr, SLOT(onValidationStateChanged()));
 
-  if (myMainWindow)
-    connect(myMainWindow, SIGNAL(exitKeySequence()), SLOT(onExit()));
-  connect(this, SIGNAL(errorOccurred(const QString&)), myErrorDlg, SLOT(addError(const QString&)));
-  connect(myEventsListener, SIGNAL(errorOccurred(const QString&)),
-          myErrorDlg, SLOT(addError(const QString&)));
+#ifndef HAVE_SALOME
+  connect(myMainWindow, SIGNAL(exitKeySequence()), SLOT(onExit()));
+  onTrihedronVisibilityChanged(true);
+#endif
+
+  connect(myEventsListener, SIGNAL(errorOccurred(std::shared_ptr<Events_InfoMessage>)),
+          myErrorDlg, SLOT(addError(std::shared_ptr<Events_InfoMessage>)));
 
   //Config_PropManager::registerProp("Visualization", "object_default_color", "Object color",
   //                                 Config_Prop::Color, "225,225,225");
 
-  Config_PropManager::registerProp("Visualization", "result_body_color", "Body color",
+  Config_PropManager::registerProp("Visualization", "result_body_color", "Result color",
                                    Config_Prop::Color, ModelAPI_ResultBody::DEFAULT_COLOR());
   Config_PropManager::registerProp("Visualization", "result_group_color", "Group color",
                                    Config_Prop::Color, ModelAPI_ResultGroup::DEFAULT_COLOR());
@@ -177,24 +205,44 @@ XGUI_Workshop::XGUI_Workshop(XGUI_SalomeConnector* theConnector)
                                    Config_Prop::Color, ModelAPI_ResultConstruction::DEFAULT_COLOR());
   Config_PropManager::registerProp("Visualization", "result_part_color", "Part color",
                                    Config_Prop::Color, ModelAPI_ResultPart::DEFAULT_COLOR());
+  
+  if (ModuleBase_Preferences::resourceMgr()->booleanValue("Viewer", "face-selection", true))
+    myViewerSelMode.append(TopAbs_FACE);
+  if (ModuleBase_Preferences::resourceMgr()->booleanValue("Viewer", "edge-selection", true))
+    myViewerSelMode.append(TopAbs_EDGE);
+  if (ModuleBase_Preferences::resourceMgr()->booleanValue("Viewer", "vertex-selection", true))
+    myViewerSelMode.append(TopAbs_VERTEX);
+  //IMP: an attempt to use result selection with other selection modes
+  myViewerSelMode.append(ModuleBase_ResultPrs::Sel_Result);//TopAbs_VERTEX);
+  myViewerSelMode.append(TopAbs_COMPSOLID);
 }
 
 //******************************************************
 XGUI_Workshop::~XGUI_Workshop(void)
 {
+#ifdef _DEBUG
+#ifdef MISSED_TRANSLATION
+  // Save Missed translations
+  Config_Translator::saveMissedTranslations();
+#endif
+#endif
+
   delete myDisplayer;
+  delete myDataModelXMLReader;
 }
 
 //******************************************************
 void XGUI_Workshop::startApplication()
 {
+  //Initialize event listening
+  myEventsListener->initializeEventListening();
+
+  myDataModelXMLReader->readAll();
   initMenu();
 
   Config_PropManager::registerProp("Plugins", "default_path", "Default Path",
                                    Config_Prop::Directory, "");
 
-  //Initialize event listening
-  myEventsListener->initializeEventListening();
 
   registerValidators();
 
@@ -202,13 +250,18 @@ void XGUI_Workshop::startApplication()
   // by Config_PropManger to restore user-defined path to plugins
   ModuleBase_Preferences::loadCustomProps();
   createModule();
-  if (myMainWindow) {
-    myMainWindow->show();
-    updateCommandStatus();
-  }
+
+#ifndef HAVE_SALOME
+  myMainWindow->show();
+  updateCommandStatus();
+#endif
   
   onNew();
 
+  myViewerProxy->connectViewProxy();
+  connect(myViewerProxy, SIGNAL(trihedronVisibilityChanged(bool)),
+          SLOT(onTrihedronVisibilityChanged(bool)));
+
   emit applicationStarted();
 }
 
@@ -221,14 +274,13 @@ void XGUI_Workshop::activateModule()
   connect(myDisplayer, SIGNAL(beforeObjectErase(ObjectPtr, AISObjectPtr)),
     myModule, SLOT(onBeforeObjectErase(ObjectPtr, AISObjectPtr)));
 
-  myActionsMgr->update();
+  updateCommandStatus();
+
+  // TODO: get default selection mode
 
   // activate visualized objects in the viewer
-  XGUI_Displayer* aDisplayer = displayer();
-  QObjectPtrList aDisplayed = aDisplayer->displayedObjects();
-  QIntList aModes;
-  module()->activeSelectionModes(aModes);
-  aDisplayer->activateObjects(aModes, aDisplayed);
+  activateObjectsSelection(displayer()->displayedObjects());
+  myOperationMgr->activate();
 }
 
 void XGUI_Workshop::deactivateModule()
@@ -246,6 +298,8 @@ void XGUI_Workshop::deactivateModule()
   XGUI_Displayer* aDisplayer = displayer();
   QObjectPtrList aDisplayed = aDisplayer->displayedObjects();
   aDisplayer->deactivateObjects(aDisplayed, true);
+
+  myOperationMgr->deactivate();
 }
 
 //******************************************************
@@ -253,48 +307,47 @@ void XGUI_Workshop::initMenu()
 {
   myContextMenuMgr->createActions();
 
-  if (isSalomeMode()) {
-    // Create only Undo, Redo commands
-    QAction* aAction = salomeConnector()->addDesktopCommand("UNDO_CMD", tr("Undo"),
-                                                         tr("Undo last command"),
-                                                         QIcon(":pictures/undo.png"),
-                                                         QKeySequence::Undo, false, "MEN_DESK_EDIT");
-    QString aToolBarTitle = tr( "INF_DESK_TOOLBAR_STANDARD" );
-    salomeConnector()->addActionInToolbar( aAction,aToolBarTitle  );
-
-    connect(aAction, SIGNAL(triggered(bool)), this, SLOT(onUndo()));
-    addHistoryMenu(aAction, SIGNAL(updateUndoHistory(const QList<ActionInfo>&)), SLOT(onUndo(int)));
-
-    aAction = salomeConnector()->addDesktopCommand("REDO_CMD", tr("Redo"), tr("Redo last command"),
-                                                QIcon(":pictures/redo.png"), QKeySequence::Redo,
-                                                false, "MEN_DESK_EDIT");
-    salomeConnector()->addActionInToolbar( aAction, aToolBarTitle );
-
-    connect(aAction, SIGNAL(triggered(bool)), this, SLOT(onRedo()));
-    addHistoryMenu(aAction, SIGNAL(updateRedoHistory(const QList<ActionInfo>&)), SLOT(onRedo(int)));
-
-    salomeConnector()->addDesktopMenuSeparator("MEN_DESK_EDIT");
-    aAction = salomeConnector()->addDesktopCommand("REBUILD_CMD", tr("Rebuild"), tr("Rebuild data objects"),
-                                                QIcon(":pictures/rebuild.png"), QKeySequence(),
-                                                false, "MEN_DESK_EDIT");
-    salomeConnector()->addActionInToolbar( aAction, aToolBarTitle );
-
-    connect(aAction, SIGNAL(triggered(bool)), this, SLOT(onRebuild()));
-    salomeConnector()->addDesktopMenuSeparator("MEN_DESK_EDIT");
-
-    aAction = salomeConnector()->addDesktopCommand("SAVEAS_CMD", tr("Export NewGeom..."), tr("Export the current document into a NewGeom file"),
-                                                QIcon(), QKeySequence(),
-                                                false, "MEN_DESK_FILE");
-    connect(aAction, SIGNAL(triggered(bool)), this, SLOT(onSaveAs()));
-
-    aAction = salomeConnector()->addDesktopCommand("OPEN_CMD", tr("Import NewGeom..."), tr("Import a NewGeom file"),
-                                                QIcon(), QKeySequence(),
-                                                false, "MEN_DESK_FILE");
-    connect(aAction, SIGNAL(triggered(bool)), this, SLOT(onOpen()));
-    salomeConnector()->addDesktopMenuSeparator("MEN_DESK_FILE");
+#ifdef HAVE_SALOME
+  // Create only Undo, Redo commands
+  QAction* aAction = salomeConnector()->addDesktopCommand("UNDO_CMD", tr("Undo"),
+                                                        tr("Undo last command"),
+                                                        QIcon(":pictures/undo.png"),
+                                                        QKeySequence::Undo, false, "MEN_DESK_EDIT");
+  QString aToolBarTitle = tr( "INF_DESK_TOOLBAR_STANDARD" );
+  salomeConnector()->addActionInToolbar( aAction,aToolBarTitle  );
+
+  connect(aAction, SIGNAL(triggered(bool)), this, SLOT(onUndo()));
+  addHistoryMenu(aAction, SIGNAL(updateUndoHistory(const QList<ActionInfo>&)), SLOT(onUndo(int)));
+
+  aAction = salomeConnector()->addDesktopCommand("REDO_CMD", tr("Redo"), tr("Redo last command"),
+                                              QIcon(":pictures/redo.png"), QKeySequence::Redo,
+                                              false, "MEN_DESK_EDIT");
+  salomeConnector()->addActionInToolbar( aAction, aToolBarTitle );
+
+  connect(aAction, SIGNAL(triggered(bool)), this, SLOT(onRedo()));
+  addHistoryMenu(aAction, SIGNAL(updateRedoHistory(const QList<ActionInfo>&)), SLOT(onRedo(int)));
+
+  salomeConnector()->addDesktopMenuSeparator("MEN_DESK_EDIT");
+  //aAction = salomeConnector()->addDesktopCommand("REBUILD_CMD", tr("Rebuild"), tr("Rebuild data objects"),
+  //                                            QIcon(":pictures/rebuild.png"), QKeySequence(),
+  //                                            false, "MEN_DESK_EDIT");
+  //salomeConnector()->addActionInToolbar( aAction, aToolBarTitle );
+
+  //connect(aAction, SIGNAL(triggered(bool)), this, SLOT(onRebuild()));
+  //salomeConnector()->addDesktopMenuSeparator("MEN_DESK_EDIT");
+
+  aAction = salomeConnector()->addDesktopCommand("SAVEAS_CMD", tr("Export native..."), tr("Export the current document into a native file"),
+                                              QIcon(), QKeySequence(),
+                                              false, "MEN_DESK_FILE");
+  connect(aAction, SIGNAL(triggered(bool)), this, SLOT(onSaveAs()));
+
+  aAction = salomeConnector()->addDesktopCommand("OPEN_CMD", tr("Import native..."), tr("Import native file"),
+                                              QIcon(), QKeySequence(),
+                                              false, "MEN_DESK_FILE");
+  connect(aAction, SIGNAL(triggered(bool)), this, SLOT(onOpen()));
+  salomeConnector()->addDesktopMenuSeparator("MEN_DESK_FILE");
 
-    return;
-  }
+#else
   // File commands group
   AppElements_MenuGroupPanel* aGroup = myMainWindow->menuObject()->generalPage();
 
@@ -305,6 +358,10 @@ void XGUI_Workshop::initMenu()
   aCommand->connectTo(this, SLOT(onSave()));
   //aCommand->disable();
 
+  aCommand = aGroup->addFeature("SAVEAS_CMD", tr("Save as..."), tr("Save the document into a file"),
+                                QIcon(":pictures/save.png"), QKeySequence());
+  aCommand->connectTo(this, SLOT(onSaveAs()));
+
   QString aUndoId = "UNDO_CMD";
   aCommand = aGroup->addFeature(aUndoId, tr("Undo"), tr("Undo last command"),
                                 QIcon(":pictures/undo.png"), QKeySequence::Undo);
@@ -323,23 +380,16 @@ void XGUI_Workshop::initMenu()
                  SIGNAL(updateRedoHistory(const QList<ActionInfo>&)),
                  SLOT(onRedo(int)));
 
-  aCommand = aGroup->addFeature("REBUILD_CMD", tr("Rebuild"), tr("Rebuild data objects"),
-    QIcon(":pictures/rebuild.png"), QKeySequence());
-  aCommand->connectTo(this, SLOT(onRebuild()));
+  //aCommand = aGroup->addFeature("REBUILD_CMD", tr("Rebuild"), tr("Rebuild data objects"),
+  //  QIcon(":pictures/rebuild.png"), QKeySequence());
+  //aCommand->connectTo(this, SLOT(onRebuild()));
 
-  aCommand = aGroup->addFeature("SAVEAS_CMD", tr("Save as..."), tr("Save the document into a file"),
-                                QIcon(":pictures/save.png"), QKeySequence());
-  aCommand->connectTo(this, SLOT(onSaveAs()));
   //aCommand->disable();
 
   aCommand = aGroup->addFeature("OPEN_CMD", tr("Open..."), tr("Open a new document"),
                                 QIcon(":pictures/open.png"), QKeySequence::Open);
   aCommand->connectTo(this, SLOT(onOpen()));
 
-  //aCommand = aGroup->addFeature("NEW_CMD", tr("New"), tr("Create a new document"),
-  //                              QIcon(":pictures/new.png"), QKeySequence::New);
-  //aCommand->connectTo(this, SLOT(onNew()));
-
   aCommand = aGroup->addFeature("PREF_CMD", tr("Preferences"), tr("Edit preferences"),
                                 QIcon(":pictures/preferences.png"), QKeySequence::Preferences);
   aCommand->connectTo(this, SLOT(onPreferences()));
@@ -347,25 +397,25 @@ void XGUI_Workshop::initMenu()
   aCommand = aGroup->addFeature("EXIT_CMD", tr("Exit"), tr("Exit application"),
                                 QIcon(":pictures/close.png"), QKeySequence::Close);
   aCommand->connectTo(this, SLOT(onExit()));
-  //FIXME: SBH's test action. Can be used for some GUI tests.
-//  #ifdef _DEBUG
-//    aCommand = aGroup->addFeature("TEST_CMD", "Test!", "Private debug button",
-//                                  QIcon(":pictures/close.png"), QKeySequence(), true);
-//    aCommand->connectTo(myMainWindow, SLOT(dockPythonConsole()));
-//  #endif
+#endif
 }
 
-//******************************************************
+#ifndef HAVE_SALOME
 AppElements_Workbench* XGUI_Workshop::addWorkbench(const QString& theName)
 {
   AppElements_MainMenu* aMenuBar = myMainWindow->menuObject();
   return aMenuBar->addWorkbench(theName);
 }
+#endif
 
 //******************************************************
 QMainWindow* XGUI_Workshop::desktop() const
 {
-  return isSalomeMode() ? salomeConnector()->desktop() : myMainWindow;
+#ifdef HAVE_SALOME
+  return salomeConnector()->desktop();
+#else
+  return myMainWindow;
+#endif
 }
 
 //******************************************************
@@ -385,26 +435,26 @@ void XGUI_Workshop::onAcceptActionClicked()
     ModuleBase_OperationFeature* aFOperation = dynamic_cast<ModuleBase_OperationFeature*>
                                                     (anOperationMgr->currentOperation());
     if (aFOperation) {
-      if (errorMgr()->canProcessClick(anAction, aFOperation->feature()))
-        myOperationMgr->onCommitOperation();
+      //if (errorMgr()->canProcessClick(anAction, aFOperation->feature()))
+      myOperationMgr->onCommitOperation();
     }
   }
 }
 
 //******************************************************
-/*void XGUI_Workshop::onValidationStateChanged(bool theEnabled)
+void XGUI_Workshop::onPreviewActionClicked()
 {
-  XGUI_OperationMgr* anOperationMgr = operationMgr();
-  if (anOperationMgr) {
-    ModuleBase_OperationFeature* aFOperation = dynamic_cast<ModuleBase_OperationFeature*>
-                                                    (anOperationMgr->currentOperation());
-    if (aFOperation) {
-      QAction* anAction = myActionsMgr->operationStateAction(XGUI_ActionsMgr::Accept);
-      myErrorMgr->updateActionState(anAction, aFOperation->feature(), theEnabled);
+  ModuleBase_IPropertyPanel* aPanel = propertyPanel();
+  if (aPanel) {
+    ModuleBase_ModelWidget* anActiveWidget = aPanel->activeWidget();
+    if (anActiveWidget && anActiveWidget->getValueState() == ModuleBase_ModelWidget::ModifiedInPP) {
+      anActiveWidget->storeValue();
     }
   }
-}*/
-
+  std::shared_ptr<Events_Message> aMsg = std::shared_ptr<Events_Message>(
+                new Events_Message(Events_Loop::eventByName(EVENT_PREVIEW_REQUESTED)));
+  Events_Loop::loop()->send(aMsg);
+}
 
 //******************************************************
 void XGUI_Workshop::deactivateActiveObject(const ObjectPtr& theObject, const bool theUpdateViewer)
@@ -423,58 +473,112 @@ bool XGUI_Workshop::isFeatureOfNested(const FeaturePtr& theFeature)
 {
   bool aHasNested = false;
   std::string aFeatureKind = theFeature->getKind();
-  if (isSalomeMode()) {
+#ifdef HAVE_SALOME
     XGUI_SalomeConnector* aSalomeConnector = salomeConnector();
     if (aSalomeConnector->isFeatureOfNested(actionsMgr()->action(aFeatureKind.c_str())))
       aHasNested = true;
-  } else {
+#else 
     AppElements_MainMenu* aMenuBar = mainWindow()->menuObject();
     AppElements_Command* aCommand = aMenuBar->feature(aFeatureKind.c_str());
     if (aCommand && aCommand->button()->additionalButtonWidget())
       aHasNested = true;
-  }
+#endif
   return aHasNested;
 }
 
-//******************************************************
-void XGUI_Workshop::onOperationStarted(ModuleBase_Operation* theOperation)
+void XGUI_Workshop::fillPropertyPanel(ModuleBase_Operation* theOperation)
 {
-  setGrantedFeatures(theOperation);
-
-  ModuleBase_OperationFeature* aFOperation = dynamic_cast<ModuleBase_OperationFeature*>
-                                                                               (theOperation);
+  ModuleBase_OperationFeature* aFOperation = dynamic_cast<ModuleBase_OperationFeature*>(theOperation);
   if (!aFOperation)
     return;
 
-  if (aFOperation->getDescription()->hasXmlRepresentation()) {  //!< No need for property panel
-    setPropertyPanel(aFOperation);
-    // filling the operation values by the current selection
-    // if the operation can be committed after the controls filling, the method perform should
-    // be stopped. Otherwise unnecessary presentations can be shown(e.g. operation prs in sketch)
-    if (!aFOperation->isEditOperation()) {
-      aFOperation->activateByPreselection();
-      if (operationMgr()->currentOperation() != aFOperation)
-        return;
+  showPropertyPanel();
+  myPropertyPanel->cleanContent();
+
+  QList<ModuleBase_ModelWidget*> aWidgets;
+  if (!module()->createWidgets(theOperation, aWidgets)) {
+    QString aXmlRepr = aFOperation->getDescription()->xmlRepresentation();
+    ModuleBase_WidgetFactory aFactory(aXmlRepr.toStdString(), myModuleConnector);
+    aFactory.createWidget(myPropertyPanel->contentWidget());
+    aWidgets = aFactory.getModelWidgets();
+  }
+
+  // check compatibility of feature and widgets
+  FeaturePtr aFeature = aFOperation->feature();
+  std::string aFeatureKind = aFeature->getKind();
+  foreach (ModuleBase_ModelWidget* aWidget, aWidgets) {
+    if (!aWidget->attributeID().empty() && !aFeature->attribute(aWidget->attributeID()).get()) {
+      std::string anErrorMsg = "The feature '%1' has no attribute '%2' used by widget '%3'.";
+      Events_InfoMessage("XGUI_Workshop", anErrorMsg)
+        .arg(aFeatureKind).arg(aWidget->attributeID()).arg(aWidget->metaObject()->className()).send();
+      myPropertyPanel->cleanContent();
+      return;
     }
   }
-  updateCommandStatus();
+  // for performance purpose, flush should be done after all controls are filled
+  bool isUpdateFlushed = false;
+  foreach (ModuleBase_ModelWidget* aWidget, aWidgets) {
+    bool isStoreValue = !aFOperation->isEditOperation() &&
+                        !aWidget->getDefaultValue().empty() &&
+                        !aWidget->isComputedDefault();
+    aWidget->setFeature(aFeature, isStoreValue, isUpdateFlushed);
+    if (!isStoreValue)
+      aWidget->restoreValue();
+    aWidget->enableFocusProcessing();
+  }
+  ModuleBase_Tools::flushUpdated(aFeature);
 
-  myModule->onOperationStarted(aFOperation);
+  // update visible state of Preview button
+#ifdef HAVE_SALOME
+  bool anIsAutoPreview = mySalomeConnector->featureInfo(aFeatureKind.c_str())->isAutoPreview();
+#else
+  AppElements_MainMenu* aMenuBar = mainWindow()->menuObject();
+  AppElements_Command* aCommand = aMenuBar->feature(aFeatureKind.c_str());
+  bool anIsAutoPreview = aCommand && aCommand->featureMessage()->isAutoPreview();
+#endif
+  if (!anIsAutoPreview) {
+    myPropertyPanel->findButton(PROP_PANEL_PREVIEW)->setVisible(true);
+    // send signal about preview should not be computed automatically, click on preview
+    // button should initiate it
+    std::shared_ptr<Events_Message> aMsg = std::shared_ptr<Events_Message>(
+                  new Events_Message(Events_Loop::eventByName(EVENT_PREVIEW_BLOCKED)));
+    Events_Loop::loop()->send(aMsg);
+  }
+  myPropertyPanel->setModelWidgets(aWidgets);
+  aFOperation->setPropertyPanel(myPropertyPanel);
 
-  // the objects of the current operation should be deactivated
-  QObjectPtrList anObjects;
-  FeaturePtr aFeature = aFOperation->feature();
-  anObjects.append(aFeature);
-  std::list<ResultPtr> aResults = aFeature->results();
-  std::list<ResultPtr>::const_iterator aIt;
-  for (aIt = aResults.begin(); aIt != aResults.end(); ++aIt) {
-    anObjects.append(*aIt);
-  }
-  QObjectPtrList::const_iterator anIt = anObjects.begin(), aLast = anObjects.end();
-  for (; anIt != aLast; anIt++)
-    deactivateActiveObject(*anIt, false);
-  if (anObjects.size() > 0)
-    myDisplayer->updateViewer();
+  myModule->propertyPanelDefined(theOperation);
+
+#ifndef DEBUG_FEATURE_NAME
+  myPropertyPanel->setWindowTitle(theOperation->getDescription()->description());
+#else
+  std::string aFeatureName = aFeature->name();
+  myPropertyPanel->setWindowTitle(QString("%1: %2").arg(theOperation->getDescription()->description())
+                                                  .arg(aFeatureName.c_str()));
+#endif
+
+  myErrorMgr->setPropertyPanel(myPropertyPanel);
+}
+
+void XGUI_Workshop::connectToPropertyPanel(const bool isToConnect)
+{
+  XGUI_PropertyPanel* aPropertyPanel = propertyPanel();
+  if (aPropertyPanel) {
+    const QList<ModuleBase_ModelWidget*>& aWidgets = aPropertyPanel->modelWidgets();
+    foreach (ModuleBase_ModelWidget* aWidget, aWidgets) {
+       myModule->connectToPropertyPanel(aWidget, isToConnect);
+       if (isToConnect) {
+        connect(aWidget, SIGNAL(valueStateChanged(int)), this, SLOT(onWidgetStateChanged(int)));
+        connect(aWidget, SIGNAL(valuesChanged()), this, SLOT(onValuesChanged()));
+        connect(aWidget, SIGNAL(objectUpdated()), this, SLOT(onWidgetObjectUpdated()));
+       }
+      else {
+        disconnect(aWidget, SIGNAL(valueStateChanged(int)), this, SLOT(onWidgetStateChanged(int)));
+        disconnect(aWidget, SIGNAL(valuesChanged()), this, SLOT(onValuesChanged()));
+        disconnect(aWidget, SIGNAL(objectUpdated()), this, SLOT(onWidgetObjectUpdated()));
+      }
+    }
+  }
 }
 
 //******************************************************
@@ -483,11 +587,12 @@ void XGUI_Workshop::onOperationResumed(ModuleBase_Operation* theOperation)
   setGrantedFeatures(theOperation);
 
   if (theOperation->getDescription()->hasXmlRepresentation()) {  //!< No need for property panel
-    setPropertyPanel(theOperation);
+    fillPropertyPanel(theOperation);
+    connectToPropertyPanel(true);
   }
   updateCommandStatus();
 
-  myModule->onOperationResumed(theOperation);
+  myModule->operationResumed(theOperation);
 }
 
 
@@ -507,7 +612,8 @@ void XGUI_Workshop::onOperationStopped(ModuleBase_Operation* theOperation)
   hidePropertyPanel();
   myPropertyPanel->cleanContent();
 
-  myModule->onOperationStopped(aFOperation);
+  connectToPropertyPanel(false);
+  myModule->operationStopped(aFOperation);
 
   // the deactivated objects of the current operation should be activated back.
   // They were deactivated on operation start or an object redisplay
@@ -516,7 +622,8 @@ void XGUI_Workshop::onOperationStopped(ModuleBase_Operation* theOperation)
   if (aFeature.get()) { // feature may be not created (plugin load fail)
     if (myDisplayer->isVisible(aFeature) && !myDisplayer->isActive(aFeature))
       anObjects.append(aFeature);
-    std::list<ResultPtr> aResults = aFeature->results();
+    std::list<ResultPtr> aResults;
+    ModelAPI_Tools::allResults(aFeature, aResults);
     std::list<ResultPtr>::const_iterator aIt;
     for (aIt = aResults.begin(); aIt != aResults.end(); ++aIt) {
       ResultPtr anObject = *aIt;
@@ -525,20 +632,18 @@ void XGUI_Workshop::onOperationStopped(ModuleBase_Operation* theOperation)
       }
     }
   }
-  QIntList aModes;
-  module()->activeSelectionModes(aModes);
-  myDisplayer->activateObjects(aModes, anObjects);
+  activateObjectsSelection(anObjects);
 }
 
 
 void XGUI_Workshop::onOperationCommitted(ModuleBase_Operation* theOperation)
 {
-  myModule->onOperationCommitted(theOperation);
+  myModule->operationCommitted(theOperation);
 }
 
 void XGUI_Workshop::onOperationAborted(ModuleBase_Operation* theOperation)
 {
-  myModule->onOperationAborted(theOperation);
+  myModule->operationAborted(theOperation);
 }
 
 void XGUI_Workshop::setGrantedFeatures(ModuleBase_Operation* theOperation)
@@ -548,8 +653,13 @@ void XGUI_Workshop::setGrantedFeatures(ModuleBase_Operation* theOperation)
     return;
 
   QStringList aGrantedIds;
-  if (isSalomeMode())
-    aGrantedIds = mySalomeConnector->nestedActions(theOperation->id());
+  if (isSalomeMode()) {
+    const std::shared_ptr<Config_FeatureMessage>& anInfo =
+                         mySalomeConnector->featureInfo(theOperation->id());
+    if (anInfo.get())
+      aGrantedIds = QString::fromStdString(anInfo->nestedFeatures())
+                                   .split(" ", QString::SkipEmptyParts);
+  }
   else
     aGrantedIds = myActionsMgr->nestedCommands(theOperation->id());
 
@@ -560,55 +670,7 @@ void XGUI_Workshop::setGrantedFeatures(ModuleBase_Operation* theOperation)
   aFOperation->setGrantedOperationIds(aGrantedIds);
 }
 
-void XGUI_Workshop::setPropertyPanel(ModuleBase_Operation* theOperation)
-{
-  ModuleBase_OperationFeature* aFOperation = dynamic_cast<ModuleBase_OperationFeature*>(theOperation);
-  if (!aFOperation)
-    return;
-
-  showPropertyPanel();
-  QString aXmlRepr = aFOperation->getDescription()->xmlRepresentation();
-  ModuleBase_WidgetFactory aFactory(aXmlRepr.toStdString(), myModuleConnector);
-
-  myPropertyPanel->cleanContent();
-  aFactory.createWidget(myPropertyPanel->contentWidget());
-
-  QList<ModuleBase_ModelWidget*> aWidgets = aFactory.getModelWidgets();
-
-  // check compatibility of feature and widgets
-  FeaturePtr aFeature = aFOperation->feature();
-  foreach (ModuleBase_ModelWidget* aWidget, aWidgets) {
-    if (!aWidget->attributeID().empty() && !aFeature->attribute(aWidget->attributeID()).get()) {
-      std::string anErrorMsg = "The feature '" + aFeature->getKind() + "' has no attribute '"
-          + aWidget->attributeID() + "' used by widget '"
-          + aWidget->metaObject()->className() + "'.";
-      Events_Error::send(anErrorMsg);
-      myPropertyPanel->cleanContent();
-      return;
-    }
-  }
-
-  foreach (ModuleBase_ModelWidget* aWidget, aWidgets) {
-    bool isStoreValue = !aFOperation->isEditOperation() &&
-                        !aWidget->getDefaultValue().empty() &&
-                        !aWidget->isComputedDefault();
-    aWidget->setFeature(aFOperation->feature(), isStoreValue);
-    aWidget->enableFocusProcessing();
-  }
-
-  myPropertyPanel->setModelWidgets(aWidgets);
-  aFOperation->setPropertyPanel(myPropertyPanel);
-
-  myModule->propertyPanelDefined(theOperation);
-
-  myPropertyPanel->setWindowTitle(theOperation->getDescription()->description());
-
-  myErrorMgr->setPropertyPanel(myPropertyPanel);
-}
-
-/*
- * Saves document with given name.
- */
+//******************************************************
 void XGUI_Workshop::saveDocument(const QString& theName, std::list<std::string>& theFileNames)
 {
   QApplication::restoreOverrideCursor();
@@ -617,49 +679,22 @@ void XGUI_Workshop::saveDocument(const QString& theName, std::list<std::string>&
   QApplication::restoreOverrideCursor();
 }
 
+//******************************************************
 bool XGUI_Workshop::abortAllOperations()
 {
   return myOperationMgr->abortAllOperations();
 }
 
 //******************************************************
-void XGUI_Workshop::onExit()
+void XGUI_Workshop::operationStarted(ModuleBase_Operation* theOperation)
 {
-  SessionPtr aMgr = ModelAPI_Session::get();
-  if (aMgr->isModified()) {
-    int anAnswer = QMessageBox::question(
-        myMainWindow, tr("Save current file"), tr("The document is modified, save before exit?"),
-        QMessageBox::Save | QMessageBox::Discard | QMessageBox::Cancel, QMessageBox::Cancel);
-    if (anAnswer == QMessageBox::Save) {
-      bool saved = onSave();
-      if (!saved) {
-        return;
-      }
-    } else if (anAnswer == QMessageBox::Cancel) {
-      return;
-    }
-  }
-  qApp->exit();
-}
-
-//******************************************************
-void XGUI_Workshop::onNew()
-{
-  QApplication::setOverrideCursor(Qt::WaitCursor);
-  if (objectBrowser() == 0) {
-    createDockWidgets();
-    mySelector->connectViewers();
-  }
-  myViewerProxy->connectToViewer();
-  showObjectBrowser();
-  if (!isSalomeMode()) {
-    myMainWindow->showPythonConsole();
-    QMdiSubWindow* aWnd = myMainWindow->viewer()->createView();
-    aWnd->showMaximized();
+  setGrantedFeatures(theOperation);
+  if (!theOperation->getDescription()->hasXmlRepresentation()) {  //!< No need for property panel
     updateCommandStatus();
   }
-  myContextMenuMgr->connectViewer();
-  QApplication::restoreOverrideCursor();
+  else {
+    myModule->operationStarted(theOperation);
+  }
 }
 
 //******************************************************
@@ -672,7 +707,7 @@ void XGUI_Workshop::onOpen()
   if (aSession->isModified()) {
     //TODO(sbh): re-launch the app?
     int anAnswer = QMessageBox::question(
-        myMainWindow, tr("Save current file"),
+        desktop(), tr("Save current file"),
         tr("The document is modified, save before opening another?"),
         QMessageBox::Save | QMessageBox::Discard | QMessageBox::Cancel, QMessageBox::Cancel);
     if (anAnswer == QMessageBox::Save) {
@@ -684,12 +719,12 @@ void XGUI_Workshop::onOpen()
   }
 
   //show file dialog, check if readable and open
-  myCurrentDir = QFileDialog::getExistingDirectory(mainWindow(), tr("Select directory"));
+  myCurrentDir = QFileDialog::getExistingDirectory(desktop(), tr("Select directory"));
   if (myCurrentDir.isEmpty())
     return;
   QFileInfo aFileInfo(myCurrentDir);
   if (!aFileInfo.exists() || !aFileInfo.isReadable()) {
-    QMessageBox::critical(myMainWindow, tr("Warning"), tr("Unable to open the file."));
+    QMessageBox::critical(desktop(), tr("Warning"), tr("Unable to open the file."));
     myCurrentDir = "";
     return;
   }
@@ -701,6 +736,76 @@ void XGUI_Workshop::onOpen()
   QApplication::restoreOverrideCursor();
 }
 
+//******************************************************
+void XGUI_Workshop::onNew()
+{
+  QApplication::setOverrideCursor(Qt::WaitCursor);
+  if (objectBrowser() == 0) {
+    createDockWidgets();
+    mySelector->connectViewers();
+  }
+  myViewerProxy->connectToViewer();
+  showObjectBrowser();
+#ifndef HAVE_SALOME
+  myMainWindow->showPythonConsole();
+  QMdiSubWindow* aWnd = myMainWindow->viewer()->createView();
+  aWnd->showMaximized();
+  updateCommandStatus();
+#endif
+  myContextMenuMgr->connectViewer();
+  QApplication::restoreOverrideCursor();
+}
+
+#ifndef HAVE_SALOME
+//******************************************************
+void XGUI_Workshop::onExit()
+{
+  SessionPtr aMgr = ModelAPI_Session::get();
+  if (aMgr->isModified()) {
+    int anAnswer = QMessageBox::question(
+        myMainWindow, tr("Save current file"), tr("The document is modified, save before exit?"),
+        QMessageBox::Save | QMessageBox::Discard | QMessageBox::Cancel, QMessageBox::Cancel);
+    if (anAnswer == QMessageBox::Save) {
+      bool saved = onSave();
+      if (!saved) {
+        return;
+      }
+    } else if (anAnswer == QMessageBox::Cancel) {
+      return;
+    }
+  }
+  qApp->exit();
+}
+
+//******************************************************
+void XGUI_Workshop::onPreferences()
+{
+  ModuleBase_Prefs aModif;
+  ModuleBase_Preferences::editPreferences(aModif);
+  if (aModif.size() > 0) {
+    QString aSection;
+    foreach (ModuleBase_Pref aPref, aModif)
+    {
+      aSection = aPref.first;
+      if (aSection == ModuleBase_Preferences::VIEWER_SECTION) {
+        myMainWindow->viewer()->updateFromResources();
+      } else if (aSection == ModuleBase_Preferences::MENU_SECTION) {
+        myMainWindow->menuObject()->updateFromResources();
+      }
+    }
+    displayer()->redisplayObjects();
+  }
+}
+#endif
+
+//******************************************************
+void XGUI_Workshop::onTrihedronVisibilityChanged(bool theState)
+{
+  XGUI_Displayer* aDisplayer = displayer();
+  if (aDisplayer)
+    aDisplayer->displayTrihedron(theState);
+}
+
 //******************************************************
 bool XGUI_Workshop::onSave()
 {
@@ -712,8 +817,9 @@ bool XGUI_Workshop::onSave()
   std::list<std::string> aFiles;
   saveDocument(myCurrentDir, aFiles);
   updateCommandStatus();
-  if (!isSalomeMode())
+#ifndef HAVE_SALOME
     myMainWindow->setModifiedState(false);
+#endif
   return true;
 }
 
@@ -722,7 +828,7 @@ bool XGUI_Workshop::onSaveAs()
 {
   if(!abortAllOperations())
     return false;
-  QFileDialog dialog(mainWindow());
+  QFileDialog dialog(desktop());
   dialog.setWindowTitle(tr("Select directory to save files..."));
   dialog.setFileMode(QFileDialog::Directory);
   dialog.setFilter(tr("Directories (*)"));
@@ -737,7 +843,7 @@ bool XGUI_Workshop::onSaveAs()
   QDir aDir(aTempDir);
   if (aDir.exists() && !aDir.entryInfoList(QDir::NoDotAndDotDot | QDir::AllEntries).isEmpty()) {
     int answer = QMessageBox::question(
-        myMainWindow,
+        desktop(),
         //: Title of the dialog which asks user if he wants to save study in existing non-empty folder
         tr("Save"),
         tr("The directory already contains some files, save anyway?"),
@@ -747,10 +853,10 @@ bool XGUI_Workshop::onSaveAs()
     }
   }
   myCurrentDir = aTempDir;
-  if (!isSalomeMode()) {
+#ifndef HAVE_SALOME
     myMainWindow->setCurrentDir(myCurrentDir, false);
     myMainWindow->setModifiedState(false);
-  }
+#endif
   return onSave();
 }
 
@@ -759,14 +865,18 @@ void XGUI_Workshop::onUndo(int theTimes)
 {
   objectBrowser()->treeView()->setCurrentIndex(QModelIndex());
   SessionPtr aMgr = ModelAPI_Session::get();
+  std::list<std::string> aUndoList = aMgr->undoList();
   if (aMgr->isOperation()) {
     /// this is important for nested operations
     /// when sketch operation is active, this condition is false and
     /// the sketch operation is not aborted
     operationMgr()->onAbortOperation();
   }
-  for (int i = 0; i < theTimes; ++i) {
+  std::list<std::string>::const_iterator aIt = aUndoList.cbegin();
+  for (int i = 0; (i < theTimes) && (aIt != aUndoList.cend()); ++i, ++aIt) {
     aMgr->undo();
+    if (QString((*aIt).c_str()) == MOVE_TO_END_COMMAND)
+      myObjectBrowser->rebuildDataTree();
   }
 
   operationMgr()->updateApplyOfOperations();
@@ -784,14 +894,18 @@ void XGUI_Workshop::onRedo(int theTimes)
 
   objectBrowser()->treeView()->setCurrentIndex(QModelIndex());
   SessionPtr aMgr = ModelAPI_Session::get();
+  std::list<std::string> aRedoList = aMgr->redoList();
   if (aMgr->isOperation()) {
     /// this is important for nested operations
     /// when sketch operation is active, this condition is false and
     /// the sketch operation is not aborted
     operationMgr()->onAbortOperation();
   }
-  for (int i = 0; i < theTimes; ++i) {
+  std::list<std::string>::const_iterator aIt = aRedoList.cbegin();
+  for (int i = 0; (i < theTimes) && (aIt != aRedoList.cend()); ++i, ++aIt) {
     aMgr->redo();
+    if (QString((*aIt).c_str()) == MOVE_TO_END_COMMAND)
+      myObjectBrowser->rebuildDataTree();
   }
   operationMgr()->updateApplyOfOperations();
   updateCommandStatus();
@@ -802,45 +916,65 @@ void XGUI_Workshop::onRedo(int theTimes)
 }
 
 //******************************************************
-void XGUI_Workshop::onRebuild()
+//void XGUI_Workshop::onRebuild()
+//{
+//  SessionPtr aMgr = ModelAPI_Session::get();
+//  bool aWasOperation = aMgr->isOperation(); // keep this value
+//  if (!aWasOperation) {
+//    aMgr->startOperation("Rebuild");
+//  }
+//  static const Events_ID aRebuildEvent = Events_Loop::loop()->eventByName("Rebuild");
+//  Events_Loop::loop()->send(std::shared_ptr<Events_Message>(
+//    new Events_Message(aRebuildEvent, this)));
+//  if (!aWasOperation) {
+//    aMgr->finishOperation();
+//  }
+//  updateCommandStatus();
+//}
+
+//******************************************************
+void XGUI_Workshop::onWidgetStateChanged(int thePreviousState)
 {
-  SessionPtr aMgr = ModelAPI_Session::get();
-  bool aWasOperation = aMgr->isOperation(); // keep this value
-  if (!aWasOperation) {
-    aMgr->startOperation("Rebuild");
+  ModuleBase_ModelWidget* anActiveWidget = 0;
+  ModuleBase_Operation* anOperation = myOperationMgr->currentOperation();
+  if (anOperation) {
+    ModuleBase_IPropertyPanel* aPanel = anOperation->propertyPanel();
+    if (aPanel)
+      anActiveWidget = aPanel->activeWidget();
   }
-  static const Events_ID aRebuildEvent = Events_Loop::loop()->eventByName("Rebuild");
-  Events_Loop::loop()->send(std::shared_ptr<Events_Message>(
-    new Events_Message(aRebuildEvent, this)));
-  if (!aWasOperation) {
-    aMgr->finishOperation();
-  }
-  updateCommandStatus();
+  if (anActiveWidget)
+    operationMgr()->onValidateOperation();
+
+  myModule->widgetStateChanged(thePreviousState);
 }
 
 //******************************************************
-void XGUI_Workshop::onPreferences()
+void XGUI_Workshop::onValuesChanged()
 {
-  ModuleBase_Prefs aModif;
-  ModuleBase_Preferences::editPreferences(aModif);
-  if (aModif.size() > 0) {
-    QString aSection;
-    foreach (ModuleBase_Pref aPref, aModif)
-    {
-      aSection = aPref.first;
-      if (aSection == ModuleBase_Preferences::VIEWER_SECTION) {
-        if (!isSalomeMode())
-          myMainWindow->viewer()->updateFromResources();
-      } else if (aSection == ModuleBase_Preferences::MENU_SECTION) {
-        if (!isSalomeMode())
-          myMainWindow->menuObject()->updateFromResources();
-      }
-    }
-    displayer()->redisplayObjects();
+  ModuleBase_ModelWidget* aSenderWidget = (ModuleBase_ModelWidget*)(sender());
+  if (!aSenderWidget || aSenderWidget->canAcceptFocus())
+    return;
+
+  ModuleBase_ModelWidget* anActiveWidget = 0;
+  ModuleBase_Operation* anOperation = myOperationMgr->currentOperation();
+  if (anOperation) {
+    ModuleBase_IPropertyPanel* aPanel = anOperation->propertyPanel();
+    if (aPanel)
+      anActiveWidget = aPanel->activeWidget();
+  }
+  if (anActiveWidget) {
+    ModuleBase_WidgetValidated* aWidgetValidated = dynamic_cast<ModuleBase_WidgetValidated*>
+                                                                           (anActiveWidget);
+    if (aWidgetValidated)
+      aWidgetValidated->clearValidatedCash();
   }
 }
 
-//******************************************************
+void XGUI_Workshop::onWidgetObjectUpdated()
+{
+  operationMgr()->onValidateOperation();
+}
+
 ModuleBase_IModule* XGUI_Workshop::loadModule(const QString& theModule)
 {
   QString libName = QString::fromStdString(library(theModule.toStdString()));
@@ -890,8 +1024,8 @@ ModuleBase_IModule* XGUI_Workshop::loadModule(const QString& theModule)
   ModuleBase_IModule* aModule = crtInst ? crtInst(myModuleConnector) : 0;
 
   if (!err.isEmpty()) {
-    if (mainWindow()) {
-      Events_Error::send(err.toStdString());
+    if (desktop()) {
+      Events_InfoMessage("XGUI_Workshop", err.toStdString()).send();
     } else {
       qWarning(qPrintable(err));
     }
@@ -914,6 +1048,9 @@ bool XGUI_Workshop::createModule()
   //  myModule, SLOT(onBeforeObjectErase(ObjectPtr, AISObjectPtr)));
 
   myModule->createFeatures();
+#ifdef HAVE_SALOME
+  salomeConnector()->createFeatureActions();
+#endif
   //myActionsMgr->update();
   return true;
 }
@@ -922,13 +1059,13 @@ bool XGUI_Workshop::createModule()
 void XGUI_Workshop::updateCommandStatus()
 {
   QList<QAction*> aCommands;
-  if (isSalomeMode()) {  // update commands in SALOME mode
+#ifdef HAVE_SALOME
     aCommands = salomeConnector()->commandList();
-  } else {
+#else
     AppElements_MainMenu* aMenuBar = myMainWindow->menuObject();
     foreach (AppElements_Command* aCmd, aMenuBar->features())
       aCommands.append(aCmd);
-  }
+#endif
   SessionPtr aMgr = ModelAPI_Session::get();
   if (aMgr->hasModuleDocument()) {
     foreach(QAction* aCmd, aCommands) {
@@ -953,7 +1090,7 @@ void XGUI_Workshop::updateCommandStatus()
         aCmd->setEnabled(false);
     }
   }
-  myActionsMgr->update();
+  myActionsMgr->updateCommandsStatus();
   emit commandStatusUpdated();
 }
 
@@ -977,6 +1114,7 @@ QDockWidget* XGUI_Workshop::createObjectBrowser(QWidget* theParent)
   aObjDock->setStyleSheet(
       "::title { position: relative; padding-left: 5px; text-align: left center }");
   myObjectBrowser = new XGUI_ObjectsBrowser(aObjDock);
+  myObjectBrowser->setXMLReader(myDataModelXMLReader);
   myModule->customizeObjectBrowser(myObjectBrowser);
   aObjDock->setWidget(myObjectBrowser);
 
@@ -991,7 +1129,7 @@ QDockWidget* XGUI_Workshop::createObjectBrowser(QWidget* theParent)
  */
 void XGUI_Workshop::createDockWidgets()
 {
-  QMainWindow* aDesktop = isSalomeMode() ? salomeConnector()->desktop() : myMainWindow;
+  QMainWindow* aDesktop = desktop();
   QDockWidget* aObjDock = createObjectBrowser(aDesktop);
   aDesktop->addDockWidget(Qt::LeftDockWidgetArea, aObjDock);
   myPropertyPanel = new XGUI_PropertyPanel(aDesktop, myOperationMgr);
@@ -1008,11 +1146,14 @@ void XGUI_Workshop::createDockWidgets()
 
   QAction* aCancelAct = myActionsMgr->operationStateAction(XGUI_ActionsMgr::Abort);
   connect(aCancelAct, SIGNAL(triggered()), myOperationMgr, SLOT(onAbortOperation()));
-  connect(myPropertyPanel, SIGNAL(noMoreWidgets()), myModule, SLOT(onNoMoreWidgets()));
-  connect(myPropertyPanel, SIGNAL(keyReleased(QKeyEvent*)),
-          myOperationMgr,  SLOT(onKeyReleased(QKeyEvent*)));
-  //connect(myOperationMgr,  SIGNAL(validationStateChanged(bool)),
-  //        this, SLOT(onValidationStateChanged(bool)));
+
+  QAction* aPreviewAct = myActionsMgr->operationStateAction(XGUI_ActionsMgr::Preview);
+  connect(aPreviewAct, SIGNAL(triggered()), this, SLOT(onPreviewActionClicked()));
+
+  connect(myPropertyPanel, SIGNAL(keyReleased(QObject*, QKeyEvent*)),
+          myOperationMgr,  SLOT(onKeyReleased(QObject*, QKeyEvent*)));
+  connect(myPropertyPanel, SIGNAL(enterClicked(QObject*)),
+          myOperationMgr,  SLOT(onProcessEnter(QObject*)));
 }
 
 //******************************************************
@@ -1028,8 +1169,8 @@ void XGUI_Workshop::showPropertyPanel()
   // in order to operation manager could process key events of the panel.
   // otherwise they are ignored. It happens only if the same(activateWindow) is
   // not happened by property panel activation(e.g. resume operation of Sketch)
-  myPropertyPanel->activateWindow();
-  myPropertyPanel->setFocus();
+  ModuleBase_Tools::activateWindow(myPropertyPanel, "XGUI_Workshop::showPropertyPanel()");
+  ModuleBase_Tools::setFocus(myPropertyPanel, "XGUI_Workshop::showPropertyPanel()");
 }
 
 //******************************************************
@@ -1046,22 +1187,24 @@ void XGUI_Workshop::hidePropertyPanel()
   // in SALOME mode, workstack made the PyConsole the active window,
   // set the focus on it. As a result, shortcuts of the application, like
   // are processed by this console. For example Undo actions.
-  // It is possible that this code is to be moved to NewGeom package
-  QMainWindow* aDesktop = isSalomeMode() ? salomeConnector()->desktop() : myMainWindow;
-  aDesktop->activateWindow();
-  aDesktop->setFocus();
+  // It is possible that this code is to be moved to SHAPER package
+  QMainWindow* aDesktop = desktop();
+  ModuleBase_Tools::activateWindow(aDesktop, "XGUI_Workshop::hidePropertyPanel()");
+  ModuleBase_Tools::setFocus(aDesktop, "XGUI_Workshop::showPropertyPanel()");
 }
 
 //******************************************************
 void XGUI_Workshop::showObjectBrowser()
 {
-  myObjectBrowser->parentWidget()->show();
+  if (!isSalomeMode())
+    myObjectBrowser->parentWidget()->show();
 }
 
 //******************************************************
 void XGUI_Workshop::hideObjectBrowser()
 {
-  myObjectBrowser->parentWidget()->hide();
+  if (!isSalomeMode())
+    myObjectBrowser->parentWidget()->hide();
 }
 
 //******************************************************
@@ -1082,16 +1225,22 @@ void XGUI_Workshop::onContextMenuCommand(const QString& theId, bool isChecked)
   QObjectPtrList aObjects = mySelector->selection()->selectedObjects();
   if (theId == "DELETE_CMD")
     deleteObjects();
+  else if (theId == "CLEAN_HISTORY_CMD")
+    cleanHistory();
   else if (theId == "MOVE_CMD")
     moveObjects();
   else if (theId == "COLOR_CMD")
     changeColor(aObjects);
-  else if (theId == "SHOW_CMD")
+  else if (theId == "SHOW_CMD") {
     showObjects(aObjects, true);
+    mySelector->updateSelectionBy(ModuleBase_ISelection::Browser);
+  }
   else if (theId == "HIDE_CMD")
     showObjects(aObjects, false);
-  else if (theId == "SHOW_ONLY_CMD")
+  else if (theId == "SHOW_ONLY_CMD") {
     showOnlyObjects(aObjects);
+    mySelector->updateSelectionBy(ModuleBase_ISelection::Browser);
+  }
   else if (theId == "SHADING_CMD")
     setDisplayMode(aObjects, XGUI_Displayer::Shading);
   else if (theId == "WIREFRAME_CMD")
@@ -1103,238 +1252,286 @@ void XGUI_Workshop::onContextMenuCommand(const QString& theId, bool isChecked)
         aObj->setDisplayed(false);
     }
     Events_Loop::loop()->flush(Events_Loop::eventByName(EVENT_OBJECT_TO_REDISPLAY));
+  } else if (theId == "SELECT_VERTEX_CMD") {
+    setViewerSelectionMode(TopAbs_VERTEX);
+  } else if (theId == "SELECT_EDGE_CMD") {
+    setViewerSelectionMode(TopAbs_EDGE);
+  } else if (theId == "SELECT_FACE_CMD") {
+    setViewerSelectionMode(TopAbs_FACE);
+  } else if (theId == "SELECT_RESULT_CMD") {
+    //setViewerSelectionMode(-1);
+    //IMP: an attempt to use result selection with other selection modes
+    setViewerSelectionMode(ModuleBase_ResultPrs::Sel_Result);
+    setViewerSelectionMode(TopAbs_COMPSOLID);
+  } else if (theId == "SHOW_RESULTS_CMD") {
+    highlightResults(aObjects);
+  } else if (theId == "SHOW_FEATURE_CMD") {
+    highlightFeature(aObjects);
+  }
+}
+
+//**************************************************************
+void XGUI_Workshop::setViewerSelectionMode(int theMode)
+{
+  if (theMode == -1)
+    myViewerSelMode.clear();
+  else {
+    if (myViewerSelMode.contains(theMode))
+      myViewerSelMode.removeAll(theMode);
+    else
+      myViewerSelMode.append(theMode);
   }
+  activateObjectsSelection(myDisplayer->displayedObjects());
+}
+
+//**************************************************************
+void XGUI_Workshop::activateObjectsSelection(const QObjectPtrList& theList)
+{
+  QIntList aModes;
+  module()->activeSelectionModes(aModes);
+  if (aModes.isEmpty() && (myViewerSelMode.length() > 0))
+    aModes.append(myViewerSelMode);
+  myDisplayer->activateObjects(aModes, theList);
 }
 
 //**************************************************************
 void XGUI_Workshop::deleteObjects()
 {
   ModuleBase_IModule* aModule = module();
-  // 1. allow the module to delete objects, do nothing if it has succeed
+  // allow the module to delete objects, do nothing if it has succeed
   if (aModule->deleteObjects()) {
     updateCommandStatus();
     return;
   }
 
-  if (!abortAllOperations())
-    return;
   QObjectPtrList anObjects = mySelector->selection()->selectedObjects();
-  // It is necessary to clear selection in order to avoid selection changed event during
-  // deletion and negative consequences connected with processing of already deleted items
-  mySelector->clearSelection();
-  // check whether the object can be deleted. There should not be parts which are not loaded
-  if (!XGUI_Tools::canRemoveOrRename(myMainWindow, anObjects))
+  if (!abortAllOperations())
     return;
 
   bool hasResult = false;
   bool hasFeature = false;
   bool hasParameter = false;
-  bool hasSubFeature = false;
-  ModuleBase_Tools::checkObjects(anObjects, hasResult, hasFeature, hasParameter, hasSubFeature);
+  bool hasCompositeOwner = false;
+  ModuleBase_Tools::checkObjects(anObjects, hasResult, hasFeature, hasParameter, hasCompositeOwner);
   if (!(hasFeature || hasParameter))
     return;
 
-  // 1. start operation
-  QString aDescription = contextMenuMgr()->action("DELETE_CMD")->text();
-  aDescription += tr(" %1");
-  QStringList aObjectNames;
-  foreach (ObjectPtr aObj, anObjects) {
-    if (!aObj->data()->isValid())
-      continue;
-    aObjectNames << QString::fromStdString(aObj->data()->name());
-  }
-  aDescription = aDescription.arg(aObjectNames.join(", "));
+  // delete objects
+  std::map<FeaturePtr, std::set<FeaturePtr> > aReferences;
+  std::set<FeaturePtr> aFeatures;
+  ModuleBase_Tools::convertToFeatures(anObjects, aFeatures);
+  ModelAPI_Tools::findAllReferences(aFeatures, aReferences);
+
+  bool aDone = false;
+  QString aDescription = contextMenuMgr()->action("DELETE_CMD")->text() + " %1";
+  aDescription = aDescription.arg(XGUI_Tools::unionOfObjectNames(anObjects, ", "));
   ModuleBase_OperationAction* anOpAction = new ModuleBase_OperationAction(aDescription, module());
 
   operationMgr()->startOperation(anOpAction);
-  // 3. delete objects
-  QMainWindow* aDesktop = isSalomeMode() ? salomeConnector()->desktop() : myMainWindow;
-  std::set<FeaturePtr> anIgnoredFeatures;
-  if (deleteFeatures(anObjects, anIgnoredFeatures, aDesktop, true)) {
-    operationMgr()->commitOperation();
+
+  std::set<FeaturePtr> aFeatureRefsToDelete;
+  if (ModuleBase_Tools::askToDelete(aFeatures, aReferences, desktop(), aFeatureRefsToDelete)) {
+    // WORKAROUND, should be done before each object remove, if it presents in XGUI_DataModel tree
+    // It is necessary to clear selection in order to avoid selection changed event during
+    // deletion and negative consequences connected with processing of already deleted items
+    mySelector->clearSelection();
+
+    if (!aFeatureRefsToDelete.empty())
+      aFeatures.insert(aFeatureRefsToDelete.begin(), aFeatureRefsToDelete.end());
+    aDone = ModelAPI_Tools::removeFeatures(aFeatures, false);
   }
-  else {
+  if (aDone)
+    operationMgr()->commitOperation();
+  else
     operationMgr()->abortOperation(operationMgr()->currentOperation());
+}
+
+//**************************************************************
+void addRefsToFeature(const FeaturePtr& theFeature,
+                      const std::map<FeaturePtr, std::set<FeaturePtr> >& theMainList,
+                      std::set<FeaturePtr>& theReferences)
+{
+  //if (theReferences.find(theFeature) != theReferences.end())
+  //  return;
+  if (theMainList.find(theFeature) == theMainList.end())
+    return; // this feature is not in the selection list, so exists without references to it
+  std::set<FeaturePtr> aMainReferences = theMainList.at(theFeature);
+
+  std::set<FeaturePtr>::const_iterator anIt = aMainReferences.begin(),
+                                       aLast = aMainReferences.end();
+  for (; anIt != aLast; anIt++) {
+    FeaturePtr aRefFeature = *anIt;
+    if (theReferences.find(aRefFeature) == theReferences.end())
+      theReferences.insert(aRefFeature);
+    addRefsToFeature(aRefFeature, theMainList, theReferences);
   }
 }
 
 //**************************************************************
-void XGUI_Workshop::moveObjects()
+void XGUI_Workshop::cleanHistory()
 {
   if (!abortAllOperations())
     return;
 
-  SessionPtr aMgr = ModelAPI_Session::get();
-
-  QString anActionId = "MOVE_CMD";
-  QString aDescription = contextMenuMgr()->action(anActionId)->text();
-  aMgr->startOperation(aDescription.toStdString());
-
   QObjectPtrList anObjects = mySelector->selection()->selectedObjects();
-  // It is necessary to clear selection in order to avoid selection changed event during
-  // moving and negative consequences connected with processing of already moved items
-  mySelector->clearSelection();
-  // check whether the object can be moved. There should not be parts which are not loaded
-  if (!XGUI_Tools::canRemoveOrRename(myMainWindow, anObjects))
-    return;
-
-  DocumentPtr anActiveDocument = aMgr->activeDocument();
-  FeaturePtr aCurrentFeature = anActiveDocument->currentFeature(true);
-  foreach (ObjectPtr aObject, anObjects) {
-    if (!myModule->canApplyAction(aObject, anActionId))
-      continue;
+  std::set<FeaturePtr> aFeatures;
+  ModuleBase_Tools::convertToFeatures(anObjects, aFeatures);
+
+#ifdef DEBUG_CLEAN_HISTORY
+  QStringList anInfo;
+  std::set<FeaturePtr>::const_iterator aFIt;
+  for (aFIt = aFeatures.begin(); aFIt != aFeatures.end(); ++aFIt) {
+    FeaturePtr aFeature = ModelAPI_Feature::feature(*aFIt);
+    anInfo.append(aFeature->name().c_str());
+  }
+  QString anInfoStr = anInfo.join(";\t");
+  qDebug(QString("cleanHistory for: [%1] - %2").arg(aFeatures.size()).arg(anInfoStr).toStdString().c_str());
+#endif
 
-    FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(aObject);
-    if (aFeature.get()) {
-      anActiveDocument->moveFeature(aFeature, aCurrentFeature);
-      aCurrentFeature = anActiveDocument->currentFeature(true);
+  std::map<FeaturePtr, std::set<FeaturePtr> > aReferences;
+  ModelAPI_Tools::findAllReferences(aFeatures, aReferences, true, false);
+  // find for each object whether all reference values are in the map as key, that means that there is
+  // no other reference in the model to this object, so it might be removed by cleaning history
+  // sk_1(ext_1, vertex_1) + (sk_3, bool_1) - cann't be deleted, dependency to bool_1
+  // ext_1(bool_1, sk_3)  - cann't be deleted, dependency to bool_1
+  // vertex_1()
+  // sk_2(ext_2) + (bool_1)  - cann't be deleted, dependency to bool_1
+  // ext_2(bool_1)  - cann't be deleted, dependency to bool_1
+  // sk_3()
+  // Information: bool_1 is not selected
+  std::set<FeaturePtr> anUnusedObjects;
+  std::map<FeaturePtr, std::set<FeaturePtr> >::const_iterator aMainIt = aReferences.begin(),
+                                                              aMainLast = aReferences.end();
+  for (; aMainIt != aMainLast; aMainIt++) {
+    FeaturePtr aMainListFeature = aMainIt->first;
+    std::set<FeaturePtr> aMainRefList = aMainIt->second;
+    std::set<FeaturePtr>::const_iterator aRefIt = aMainRefList.begin(), aRefLast = aMainRefList.end();
+    bool aFeatureOutOfTheList = false;
+    for (; aRefIt != aRefLast && !aFeatureOutOfTheList; aRefIt++) {
+      FeaturePtr aRefFeature = *aRefIt;
+      aFeatureOutOfTheList = aReferences.find(aRefFeature) == aReferences.end();
     }
+    if (!aFeatureOutOfTheList)
+      anUnusedObjects.insert(aMainListFeature);
   }
-  aMgr->finishOperation();
-}
 
-//**************************************************************
-bool XGUI_Workshop::deleteFeatures(const QObjectPtrList& theList,
-                                   const std::set<FeaturePtr>& theIgnoredFeatures,
-                                   QWidget* theParent,
-                                   const bool theAskAboutDeleteReferences)
-{
-#ifdef DEBUG_DELETE
-  QStringList aDInfo;
-  QObjectPtrList::const_iterator aDIt = theList.begin(), aDLast = theList.end();
-  for (; aDIt != aDLast; ++aDIt) {
-    aDInfo.append(ModuleBase_Tools::objectInfo((*aDIt)));
-  }
-  QString anInfoStr = aDInfo.join(", ");
-  qDebug(QString("deleteFeatures: %1, %2").arg(theList.size()).arg(anInfoStr).toStdString().c_str());
+#ifdef DEBUG_CLEAN_HISTORY
+  anInfo.clear();
+  for (aFIt = anUnusedObjects.begin(); aFIt != anUnusedObjects.end(); ++aFIt) {
+    FeaturePtr aFeature = *aFIt;
+    anInfo.append(aFeature->name().c_str());
+  }
+  qDebug(QString("unused objects: [%1] - %2").arg(anInfo.size()).arg(anInfo.join(";\t")).toStdString().c_str());
 #endif
 
-  // 1. find all referenced features
-  std::set<FeaturePtr> aDirectRefFeatures, aIndirectRefFeatures;
-  foreach (ObjectPtr aDeletedObj, theList) {
-    std::set<FeaturePtr> alreadyProcessed;
-    XGUI_Tools::refsToFeatureInAllDocuments(
-      aDeletedObj, aDeletedObj, aDirectRefFeatures, aIndirectRefFeatures, alreadyProcessed);
-    std::set<FeaturePtr> aDifference;
-    std::set_difference(aIndirectRefFeatures.begin(), aIndirectRefFeatures.end(), 
-                        aDirectRefFeatures.begin(), aDirectRefFeatures.end(), 
-                        std::inserter(aDifference, aDifference.begin()));
-    aIndirectRefFeatures = aDifference;
-  }
-
-  bool doDeleteReferences = true;
-
-  // 2. warn about the references remove, break the delete operation if the user chose it
-  if (theAskAboutDeleteReferences && !aDirectRefFeatures.empty()) {
-    QStringList aDirectRefNames;
-    foreach (const FeaturePtr& aFeature, aDirectRefFeatures)
-      aDirectRefNames.append(aFeature->name().c_str());
-    QString aDirectNames = aDirectRefNames.join(", ");
-
-    QStringList aIndirectRefNames;
-    foreach (const FeaturePtr& aFeature, aIndirectRefFeatures)
-      aIndirectRefNames.append(aFeature->name().c_str());
-    QString aIndirectNames = aIndirectRefNames.join(", ");
-
-    bool canReplaceParameters = true;
-    foreach (ObjectPtr aObj, theList) {
-      FeaturePtr aFeature = ModelAPI_Feature::feature(aObj);
-      if (!std::dynamic_pointer_cast<ModelAPI_ResultParameter>(aFeature->firstResult()).get()) { // the feature is not a parameter
-        canReplaceParameters = false;
-        break;
-      }
+  // warn about the references remove, break the delete operation if the user chose it
+  if (!anUnusedObjects.empty()) {
+    QStringList aNames;
+    foreach (const FeaturePtr& aFeature, anUnusedObjects) {
+      aNames.append(aFeature->name().c_str());
     }
+    aNames.sort();
+    QString anUnusedNames = aNames.join(", ");
+
+    QString anActionId = "CLEAN_HISTORY_CMD";
+    QString aDescription = contextMenuMgr()->action(anActionId)->text();
 
-    QMessageBox aMessageBox(theParent);
-    aMessageBox.setWindowTitle(tr("Delete features"));
+    QMessageBox aMessageBox(desktop());
+    aMessageBox.setWindowTitle(aDescription);
     aMessageBox.setIcon(QMessageBox::Warning);
     aMessageBox.setStandardButtons(QMessageBox::No | QMessageBox::Yes);
     aMessageBox.setDefaultButton(QMessageBox::No);
 
-    QString aText;
-    if (canReplaceParameters) {
-      aText = QString(tr("Selected parameters are used in the following features: %1.\nThese features will be deleted.\n%2Or parameters could be replaced by their values.\nWould you like to continue?"))
-          .arg(aDirectNames).arg(aIndirectNames.isEmpty() ? QString() : QString(tr("(Also these features will be deleted: %1)\n")).arg(aIndirectNames));
-      QPushButton *aReplaceButton = aMessageBox.addButton(tr("Replace"), QMessageBox::ActionRole);
-    } else {
-      aText = QString(tr("Selected features are used in the following features: %1.\nThese features will be deleted.\n%2Would you like to continue?"))
-          .arg(aDirectNames).arg(aIndirectNames.isEmpty() ? QString() : QString(tr("Also these features will be deleted: %1.\n")).arg(aIndirectNames));
-    }
+    QString aText = QString(tr("Unused features are the following: %1.\nThese features will be deleted.\nWould you like to continue?")
+                   .arg(anUnusedNames));
     aMessageBox.setText(aText);
-    aMessageBox.exec();
-    QMessageBox::ButtonRole aButtonRole = aMessageBox.buttonRole(aMessageBox.clickedButton());
+    if (aMessageBox.exec() == QMessageBox::No)
+      return;
 
-    if (aButtonRole == QMessageBox::NoRole)
-      return false;
+    // 1. start operation
+    aDescription += "by deleting of " + aDescription.arg(XGUI_Tools::unionOfObjectNames(anObjects, ", "));
+    ModuleBase_OperationAction* anOpAction = new ModuleBase_OperationAction(aDescription, module());
+    operationMgr()->startOperation(anOpAction);
 
-    if (aButtonRole == QMessageBox::ActionRole) {
-      foreach (ObjectPtr aObj, theList)
-        ModelAPI_ReplaceParameterMessage::send(aObj, this);
-      doDeleteReferences = false;
+    // WORKAROUND, should be done before each object remove, if it presents in XGUI_DataModel tree
+    // It is necessary to clear selection in order to avoid selection changed event during
+    // deletion and negative consequences connected with processing of already deleted items
+    mySelector->clearSelection();
+
+    std::set<FeaturePtr> anIgnoredFeatures;
+    if (ModelAPI_Tools::removeFeatures(anUnusedObjects, true)) {
+      operationMgr()->commitOperation();
+    }
+    else {
+      operationMgr()->abortOperation(operationMgr()->currentOperation());
     }
   }
+  else {
+    QString anActionId = "CLEAN_HISTORY_CMD";
+    QString aDescription = contextMenuMgr()->action(anActionId)->text();
 
-  // 3. remove referenced features
-  if (doDeleteReferences) {
-    std::set<FeaturePtr> aFeaturesToDelete = aDirectRefFeatures;
-    aFeaturesToDelete.insert(aIndirectRefFeatures.begin(), aIndirectRefFeatures.end());
-    std::set<FeaturePtr>::const_iterator anIt = aFeaturesToDelete.begin(),
-                                         aLast = aFeaturesToDelete.end();
-#ifdef DEBUG_DELETE
-    QStringList anInfo;
-#endif
-    for (; anIt != aLast; anIt++) {
-      FeaturePtr aFeature = (*anIt);
-      DocumentPtr aDoc = aFeature->document();
-      if (theIgnoredFeatures.find(aFeature) == theIgnoredFeatures.end()) {
-        aDoc->removeFeature(aFeature);
-#ifdef DEBUG_DELETE
-        anInfo.append(ModuleBase_Tools::objectInfo(aFeature).toStdString().c_str());
-#endif
-      }
-    }
-#ifdef DEBUG_DELETE
-    qDebug(QString("remove references:%1").arg(anInfo.join("; ")).toStdString().c_str());
-    anInfo.clear();
-#endif
+    QMessageBox aMessageBox(desktop());
+    aMessageBox.setWindowTitle(aDescription);
+    aMessageBox.setIcon(QMessageBox::Warning);
+    aMessageBox.setStandardButtons(QMessageBox::No | QMessageBox::Yes);
+    aMessageBox.setDefaultButton(QMessageBox::No);
+
+    QString aText;
+    aMessageBox.setStandardButtons(QMessageBox::Ok);
+    aMessageBox.setDefaultButton(QMessageBox::Ok);
+
+    aText = QString(tr("All features are relevant, there is nothing to be deleted"));
+    aMessageBox.setText(aText);
+
+    if (aMessageBox.exec() == QMessageBox::No)
+      return;
   }
+}
 
-  QString anActionId = "DELETE_CMD";
-  QString anId = QString::fromStdString(anActionId.toStdString().c_str());
-  QStringList anObjectGroups = contextMenuMgr()->actionObjectGroups(anId);
-  // 4. remove the parameter features
-  foreach (ObjectPtr aObj, theList) {
-    // features and parameters can be removed here,
-    // the results are removed only by a corresponded feature remove
-    std::string aGroupName = aObj->groupName();
-    if (!anObjectGroups.contains(aGroupName.c_str()))
-      continue;
+//**************************************************************
+void XGUI_Workshop::moveObjects()
+{
+  if (!abortAllOperations())
+    return;
 
-    if (!myModule->canApplyAction(aObj, anActionId))
+  SessionPtr aMgr = ModelAPI_Session::get();
+
+  QString anActionId = "MOVE_CMD";
+  QString aDescription = contextMenuMgr()->action(anActionId)->text();
+  aMgr->startOperation(aDescription.toStdString());
+
+  QObjectPtrList anObjects = mySelector->selection()->selectedObjects();
+  // It is necessary to clear selection in order to avoid selection changed event during
+  // moving and negative consequences connected with processing of already moved items
+  mySelector->clearSelection();
+  // check whether the object can be moved. There should not be parts which are not loaded
+  std::set<FeaturePtr> aFeatures;
+  ModuleBase_Tools::convertToFeatures(anObjects, aFeatures);
+  if (!XGUI_Tools::canRemoveOrRename(desktop(), aFeatures))
+    return;
+
+  DocumentPtr anActiveDocument = aMgr->activeDocument();
+  FeaturePtr aCurrentFeature = anActiveDocument->currentFeature(true);
+  std::set<FeaturePtr>::const_iterator anIt = aFeatures.begin(), aLast = aFeatures.end();
+  for (; anIt != aLast; anIt++) {
+    FeaturePtr aFeature = *anIt;
+    if (!aFeature.get() || !myModule->canApplyAction(aFeature, anActionId))
       continue;
 
-    FeaturePtr aFeature = ModelAPI_Feature::feature(aObj);
-    if (aFeature) {
-      /*// TODO: to learn the workshop to delegate the Part object deletion to the PartSet module
-      // part features are removed in the PartSet module. This condition should be moved there
-      if (aFeature->getKind() == "Part")
-        continue;
-        */
-      DocumentPtr aDoc = aObj->document();
-      if (theIgnoredFeatures.find(aFeature) == theIgnoredFeatures.end()) {
-#ifdef DEBUG_DELETE
-        QString anInfoStr = ModuleBase_Tools::objectInfo(aFeature);
-        anInfo.append(anInfoStr);
-        qDebug(QString("remove feature :%1").arg(anInfoStr).toStdString().c_str());
-#endif
-        aDoc->removeFeature(aFeature);
-      }
-    }
+    anActiveDocument->moveFeature(aFeature, aCurrentFeature);
+    aCurrentFeature = anActiveDocument->currentFeature(true);
   }
-#ifdef DEBUG_DELETE
-  qDebug(QString("remove features:%1").arg(anInfo.join("; ")).toStdString().c_str());
-#endif
-  return true;
+  aMgr->finishOperation();
+}
+
+//**************************************************************
+bool XGUI_Workshop::deleteFeatures(const QObjectPtrList& theObjects)
+{
+  std::map<FeaturePtr, std::set<FeaturePtr> > aReferences;
+  std::set<FeaturePtr> aFeatures;
+  ModuleBase_Tools::convertToFeatures(theObjects, aFeatures);
+
+  return ModelAPI_Tools::removeFeaturesAndReferences(aFeatures);
 }
 
 bool hasResults(QObjectPtrList theObjects, const std::set<std::string>& theTypes)
@@ -1364,7 +1561,9 @@ std::list<FeaturePtr> allFeatures(const DocumentPtr& theDocument)
     // The order of appending features of the part and the part itself is important
 
     // Append features from a part feature
-    foreach (const ResultPtr& aResult, aFeature->results()) {
+    std::list<ResultPtr> aResults;
+    ModelAPI_Tools::allResults(aFeature, aResults);
+    foreach (const ResultPtr& aResult, aResults) {
       ResultPartPtr aResultPart =
           std::dynamic_pointer_cast<ModelAPI_ResultPart>(aResult);
       if (aResultPart.get() && aResultPart->partDoc().get()) {
@@ -1436,7 +1635,7 @@ bool XGUI_Workshop::canMoveFeature()
       std::set<FeaturePtr> aPlacedFeatures(aFeaturesBetween.begin(), aFeaturesBetween.end());
       // 2. Get all reference features to the selected object in the document 
       std::set<FeaturePtr> aRefFeatures;
-      XGUI_Tools::refsToFeatureInFeatureDocument(aObject, aRefFeatures);
+      ModuleBase_Tools::refsToFeatureInFeatureDocument(aObject, aRefFeatures);
 
       if (aRefFeatures.empty())
         continue;
@@ -1503,6 +1702,7 @@ void setColor(ResultPtr theResult, const std::vector<int>& theColor)
 //**************************************************************
 void XGUI_Workshop::changeColor(const QObjectPtrList& theObjects)
 {
+
   AttributeIntArrayPtr aColorAttr;
   // 1. find the current color of the object. This is a color of AIS presentation
   // The objects are iterated until a first valid color is found 
@@ -1529,8 +1729,10 @@ void XGUI_Workshop::changeColor(const QObjectPtrList& theObjects)
   if (aColor.size() != 3)
     return;
 
+  if (!abortAllOperations())
+  return; 
   // 2. show the dialog to change the value
-  XGUI_ColorDialog* aDlg = new XGUI_ColorDialog(mainWindow());
+  XGUI_ColorDialog* aDlg = new XGUI_ColorDialog(desktop());
   aDlg->setColor(aColor);
   aDlg->move(QCursor::pos());
   bool isDone = aDlg->exec() == QDialog::Accepted;
@@ -1541,11 +1743,8 @@ void XGUI_Workshop::changeColor(const QObjectPtrList& theObjects)
 
   // 3. abort the previous operation and start a new one
   SessionPtr aMgr = ModelAPI_Session::get();
-  bool aWasOperation = aMgr->isOperation(); // keep this value
-  if (!aWasOperation) {
-    QString aDescription = contextMenuMgr()->action("COLOR_CMD")->text();
-    aMgr->startOperation(aDescription.toStdString());
-  }
+  QString aDescription = contextMenuMgr()->action("COLOR_CMD")->text();
+  aMgr->startOperation(aDescription.toStdString());
 
   // 4. set the value to all results
   std::vector<int> aColorResult = aDlg->getColor();
@@ -1561,8 +1760,7 @@ void XGUI_Workshop::changeColor(const QObjectPtrList& theObjects)
       setColor(aResult, !isRandomColor ? aColorResult : aDlg->getRandomColor());
     }
   }
-  if (!aWasOperation)
-    aMgr->finishOperation();
+  aMgr->finishOperation();
   updateCommandStatus();
 }
 
@@ -1720,6 +1918,15 @@ QList<ActionInfo> XGUI_Workshop::processHistoryList(const std::list<std::string>
   return aResult;
 }
 
+void XGUI_Workshop::setStatusBarMessage(const QString& theMessage)
+{
+#ifdef HAVE_SALOME
+  salomeConnector()->putInfo(theMessage, -1);
+#else
+  myMainWindow->putInfo(theMessage, -1);
+#endif
+}
+
 void XGUI_Workshop::synchronizeViewer()
 {
   SessionPtr aMgr = ModelAPI_Session::get();
@@ -1739,9 +1946,66 @@ void XGUI_Workshop::synchronizeGroupInViewer(const DocumentPtr& theDoc,
   int aSize = theDoc->size(theGroup);
   for (int i = 0; i < aSize; i++) {
     aObj = theDoc->object(theGroup, i);
-    if (aObj->isDisplayed())
+    if (aObj->isDisplayed()) {
+      // Hide the presentation with an empty shape. But isDisplayed state of the object should not
+      // be changed to the object becomes visible when the shape becomes not empty
+      ResultPtr aRes = std::dynamic_pointer_cast<ModelAPI_Result>(aObj);
+      if (aRes.get() && (!aRes->shape().get() || aRes->shape()->isNull()))
+        continue;
       myDisplayer->display(aObj, false);
+    }
   }
   if (theUpdateViewer)
     myDisplayer->updateViewer();
 }
+
+void XGUI_Workshop::highlightResults(const QObjectPtrList& theObjects)
+{
+  FeaturePtr aFeature;
+  QObjectPtrList aSelList = theObjects;
+  std::list<ResultPtr> aResList;
+  bool aHasHidden = false;
+  foreach(ObjectPtr aObj, theObjects) {
+    aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(aObj);
+    if (aFeature.get()) {
+      std::list<ResultPtr> aResults;
+      ModelAPI_Tools::allResults(aFeature, aResults);
+      std::list<std::shared_ptr<ModelAPI_Result> >::const_iterator aIt;
+      for(aIt = aResList.cbegin(); aIt != aResList.cend(); aIt++) {
+        aHasHidden |= (*aIt)->isConcealed();
+        aSelList.append(*aIt);
+      }
+    }
+  }
+  if (aSelList.count() > theObjects.count()) {
+    // if something was found
+    bool aBlocked = objectBrowser()->blockSignals(true);
+    objectBrowser()->setObjectsSelected(aSelList);
+    objectBrowser()->blockSignals(aBlocked);
+  }
+  if (aHasHidden) 
+    QMessageBox::information(desktop(), tr("Find results"), 
+                             tr("Results not found"), QMessageBox::Ok);
+}
+
+void XGUI_Workshop::highlightFeature(const QObjectPtrList& theObjects)
+{
+  ResultPtr aResult;
+  QObjectPtrList aSelList = theObjects;
+  FeaturePtr aFeature;
+  foreach(ObjectPtr aObj, theObjects) {
+    aResult = std::dynamic_pointer_cast<ModelAPI_Result>(aObj);
+    if (aResult.get()) {
+      aFeature = ModelAPI_Feature::feature(aResult);
+      if (aFeature.get()) {
+        aSelList.append(aFeature);
+      }
+    }
+  }
+  if (aSelList.count() > theObjects.count()) {
+    // if something was found
+    bool aBlocked = objectBrowser()->blockSignals(true);
+    objectBrowser()->setObjectsSelected(aSelList);
+    objectBrowser()->blockSignals(aBlocked);
+  }
+}