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Issue #3140: Modify Iso-lines of a shape presentation
[modules/shaper.git] / src / XGUI / XGUI_Workshop.cpp
index d0099ef119a39714c9d517c63bd007d6d9f01999..799f5c00f172d71a5e96d06d435cd5b7b6381204 100644 (file)
@@ -45,7 +45,6 @@
 #include "XGUI_Tools.h"
 #include "XGUI_ViewerProxy.h"
 #include "XGUI_WorkshopListener.h"
-#include <XGUI_CustomPrs.h>
 #include <XGUI_HistoryMenu.h>
 #include <XGUI_QtEvents.h>
 #include <XGUI_DataModel.h>
@@ -67,6 +66,7 @@
 #include <ModelAPI_AttributeDocRef.h>
 #include <ModelAPI_AttributeIntArray.h>
 #include <ModelAPI_AttributeDouble.h>
+#include <ModelAPI_AttributeString.h>
 #include <ModelAPI_Data.h>
 #include <ModelAPI_Events.h>
 #include <ModelAPI_Feature.h>
@@ -79,6 +79,8 @@
 #include <ModelAPI_Session.h>
 #include <ModelAPI_Validator.h>
 #include <ModelAPI_Tools.h>
+#include <ModelAPI_ResultField.h>
+#include <ModuleBase_IconFactory.h>
 
 //#include <PartSetPlugin_Part.h>
 
 #include <Events_InfoMessage.h>
 #include <Events_LongOp.h>
 
+#include <ExchangePlugin_ExportPart.h>
+#include <ExchangePlugin_ImportPart.h>
+#include <ExchangePlugin_Import.h>
+
+#include <GeomAPI_Pnt.h>
+#include <GeomAPI_ShapeExplorer.h>
+
 #include <ModuleBase_IModule.h>
 #include <ModuleBase_IViewer.h>
 #include <ModuleBase_Operation.h>
 #include <ModuleBase_Tools.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 <ModuleBase_ActionIntParameter.h>
+#include <ModuleBase_IStepPrs.h>
 
 #include <Config_Common.h>
 #include <Config_FeatureMessage.h>
 #include <QDesktopWidget>
 #include <QProcess>
 #include <QDesktopServices>
+#include <QFormLayout>
+#include <QSpinBox>
+#include <QDialogButtonBox>
 
 #include <iterator>
 
@@ -164,21 +176,24 @@ static Handle(VInspector_CallBack) MyVCallBack;
 //#define DEBUG_WITH_MESSAGE_REPORT
 
 QString XGUI_Workshop::MOVE_TO_END_COMMAND = QObject::tr("Move to the end");
+QString XGUI_Workshop::MOVE_TO_END_SPLIT_COMMAND = QObject::tr("Move to the end and split");
 
 //#define DEBUG_DELETE
 //#define DEBUG_FEATURE_NAME
 //#define DEBUG_CLEAN_HISTORY
 
 #ifdef HAVE_SALOME
-static QString MyFilter(QObject::tr("SHAPER files (*.shaper *.opp)"));
+static QString MyFilter(QObject::tr("SHAPER files (*.shaper *.cadbld)"));
 static QString MyFilter2(QObject::tr("SHAPER files (*.shaper)"));
 static QString MyExtension(".shaper");
 #else
-static QString MyFilter(QObject::tr("OpenParts files (*.opp);;All files (*.*)"));
-static QString MyFilter2(QObject::tr("OpenParts files (*.opp)"));
-static QString MyExtension(".opp");
+static QString MyFilter(QObject::tr("CAD Builder files (*.cadbld);;All files (*.*)"));
+static QString MyFilter2(QObject::tr("CAD Builder files (*.cadbld)"));
+static QString MyExtension(".cadbld");
 #endif
 
+static QString MyImportPartFilter(QObject::tr("Part files (*.shaperpart);;All files (*.*)"));
+
 
 //******************************************************
 XGUI_Workshop::XGUI_Workshop(XGUI_SalomeConnector* theConnector)
@@ -216,7 +231,15 @@ XGUI_Workshop::XGUI_Workshop(XGUI_SalomeConnector* theConnector)
   // Load translations
   QStringList aLangs;
   aLangs << "*_en.ts"; // load by default eng translations
+
+  /// If version of OCCT is 7.4.0 or more then it means that
+  /// this is version of SALOME older then 9.4.0
+#if OCC_VERSION_HEX >= 0x070400
+  QString aCurrLang = aResMgr->language();
+#else
   QString aCurrLang = aResMgr->stringValue("language", "language", "en");
+#endif
+
   if(aCurrLang != "en") {
     aLangs << "*_" + aCurrLang + ".ts"; // then replace with translated files
   }
@@ -264,27 +287,14 @@ XGUI_Workshop::XGUI_Workshop(XGUI_SalomeConnector* theConnector)
 
 #ifndef HAVE_SALOME
   connect(myMainWindow, SIGNAL(exitKeySequence()), SLOT(onExit()));
-  onTrihedronVisibilityChanged(true);
+  myDisplayer->displayTrihedron(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", "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());
-  Config_PropManager::registerProp("Visualization", "result_construction_color",
-                                   "Construction color",
-                                   Config_Prop::Color,
-                                   ModelAPI_ResultConstruction::DEFAULT_COLOR());
-  Config_PropManager::registerProp("Visualization", "result_part_color", "Part color",
-                                   Config_Prop::Color, ModelAPI_ResultPart::DEFAULT_COLOR());
-  Config_PropManager::registerProp("Visualization", "result_field_color", "Field color",
-                                   Config_Prop::Color, ModelAPI_ResultField::DEFAULT_COLOR());
+  Config_PropManager::registerProp("Visualization", "selection_color", "Selection color",
+    Config_Prop::Color, "255,255,255");
 
   if (ModuleBase_Preferences::resourceMgr()->booleanValue("Viewer", "face-selection", true))
     myViewerSelMode.append(TopAbs_FACE);
@@ -342,6 +352,15 @@ void XGUI_Workshop::startApplication()
   // Calling of  loadCustomProps before activating module is required
   // by Config_PropManger to restore user-defined path to plugins
   ModuleBase_Preferences::loadCustomProps();
+  std::vector<int> aColor;
+  try {
+    aColor = Config_PropManager::color("Visualization", "selection_color");
+  }
+  catch (...) {
+  }
+  if (aColor.size() == 3)
+    myDisplayer->setSelectionColor(aColor);
+
   createModule();
 
 #ifndef HAVE_SALOME
@@ -466,6 +485,26 @@ void XGUI_Workshop::initMenu()
   connect(aAction, SIGNAL(triggered(bool)), this, SLOT(onOpen()));
   salomeConnector()->addDesktopMenuSeparator("MEN_DESK_FILE");
 
+  aAction = salomeConnector()->addDesktopCommand("EXPORT_PART_CMD", tr("Export part..."),
+                                          tr("Export a part of the current document into a file"),
+                                          QIcon(), QKeySequence(),
+                                          false, "MEN_DESK_FILE");
+  connect(aAction, SIGNAL(triggered(bool)), this, SLOT(onExportPart()));
+
+  aAction = salomeConnector()->addDesktopCommand("IMPORT_PART_CMD", tr("Import part..."),
+                                          tr("Import structure of a part"),
+                                          QIcon(), QKeySequence(),
+                                          false, "MEN_DESK_FILE");
+  connect(aAction, SIGNAL(triggered(bool)), this, SLOT(onImportPart()));
+
+  aAction = salomeConnector()->addDesktopCommand("IMPORT_SHAPE_CMD", tr("Import shape..."),
+    tr("Import shape from a file"),
+    ModuleBase_IconFactory::loadIcon("icons/Exchange/import.png"),
+    QKeySequence(), false, "MEN_DESK_FILE");
+  connect(aAction, SIGNAL(triggered(bool)), this, SLOT(onImportShape()));
+
+  salomeConnector()->addDesktopMenuSeparator("MEN_DESK_FILE");
+
 #else
   // File commands group
   AppElements_MenuGroupPanel* aGroup = myMainWindow->menuObject()->generalPage();
@@ -620,7 +659,7 @@ void XGUI_Workshop::onHelpActionClicked()
             "salome" + aSep + "gui" + aSep + "SHAPER";
         }
 #else
-        QString aDir(getenv("OPENPARTS_ROOT_DIR"));
+        QString aDir(getenv("CADBUILDER_ROOT_DIR"));
         aDocDir = aDir + aSep + "doc" + aSep + "gui";
 #endif
         QString aFileName = aDocDir + aSep + aHelpPage;
@@ -672,12 +711,11 @@ void XGUI_Workshop::fillPropertyPanel(ModuleBase_Operation* theOperation)
   if (!aFOperation)
     return;
 
-  showPanel(myPropertyPanel);
   myPropertyPanel->cleanContent();
 
   QList<ModuleBase_ModelWidget*> aWidgets;
-  if (!module()->createWidgets(theOperation, aWidgets)) {
-    QString aXmlRepr = aFOperation->getDescription()->xmlRepresentation();
+  QString aXmlRepr = aFOperation->getDescription()->xmlRepresentation();
+  if (!module()->createWidgets(aFOperation->feature(), aXmlRepr, aWidgets)) {
     ModuleBase_WidgetFactory aFactory(aXmlRepr.toStdString(), myModuleConnector);
     aFactory.createWidget(myPropertyPanel->contentWidget());
     aWidgets = aFactory.getModelWidgets();
@@ -748,15 +786,22 @@ void XGUI_Workshop::fillPropertyPanel(ModuleBase_Operation* theOperation)
   myModule->propertyPanelDefined(theOperation);
 
 #ifndef DEBUG_FEATURE_NAME
-  myPropertyPanel->setWindowTitle(theOperation->getDescription()->description());
+  myPropertyPanel->setWindowTitle(ModuleBase_Tools::translate("workshop",
+    theOperation->getDescription()->description().toStdString()));
 #else
   std::string aFeatureName = aFeature->name();
   myPropertyPanel->setWindowTitle(QString("%1: %2")
-    .arg(theOperation->getDescription()->description())
-    .arg(aFeatureName.c_str()));
+    .arg(translate(theOperation->getDescription()->description()))
+    .arg(translate(aFeatureName.c_str())));
 #endif
 
   myErrorMgr->setPropertyPanel(myPropertyPanel);
+  if (Config_PropManager::boolean("Windows", "use_hide_faces_panel")) {
+    theOperation->setHideFacesVisible(myFacesPanel->isVisible());
+    if (aFeatureInfo.get() && aFeatureInfo->isHideFacesPanel() && !myFacesPanel->isVisible())
+      myFacesPanel->show();
+  }
+  showPanel(myPropertyPanel);
 }
 
 //******************************************************
@@ -789,6 +834,12 @@ void XGUI_Workshop::onOperationResumed(ModuleBase_Operation* theOperation)
   if (theOperation->getDescription()->hasXmlRepresentation()) {  //!< No need for property panel
     fillPropertyPanel(theOperation);
     connectToPropertyPanel(true);
+    ModuleBase_OperationFeature* aFOperation = dynamic_cast<ModuleBase_OperationFeature*>
+      (theOperation);
+    if (aFOperation)
+      myPropertyPanel->updateApplyPlusButton(aFOperation->feature());
+    else
+      myPropertyPanel->updateApplyPlusButton(FeaturePtr());
   }
   updateCommandStatus();
 
@@ -832,6 +883,11 @@ void XGUI_Workshop::onOperationStopped(ModuleBase_Operation* theOperation)
     }
   }
   activateObjectsSelection(anObjects);
+
+  if (Config_PropManager::boolean("Windows", "use_hide_faces_panel")) {
+    if (!theOperation->isHideFacesVisible())
+      myFacesPanel->close();
+  }
 }
 
 //******************************************************
@@ -929,7 +985,11 @@ void XGUI_Workshop::onOpen()
   }
 
   //show file dialog, check if readable and open
-  QString aFile = QFileDialog::getOpenFileName(desktop(), tr("Open file"), QString(), MyFilter);
+  qreal aRatio = ModuleBase_Tools::currentPixelRatio();
+  // If the ratio is > 1 (HD screen) then QT has a bug in
+  // displaying of system open file dialog (too small)
+  QString aFile = QFileDialog::getOpenFileName(desktop(), tr("Open file"), QString(), MyFilter,
+    Q_NULLPTR, ((aRatio > 1)? QFileDialog::DontUseNativeDialog : QFileDialog::Options()));
   if (!aFile.isNull())
     openFile(aFile);
 }
@@ -1004,6 +1064,8 @@ void XGUI_Workshop::onNew()
   QMdiSubWindow* aWnd = myMainWindow->viewer()->createView();
   aWnd->showMaximized();
   updateCommandStatus();
+  PyConsole_Console* aConsole = myMainWindow->pythonConsole();
+  connect(aConsole, SIGNAL(scriptLoaded()), SLOT(updateCommandStatus()));
 #endif
   myContextMenuMgr->connectViewer();
   QApplication::restoreOverrideCursor();
@@ -1037,8 +1099,7 @@ void XGUI_Workshop::onPreferences()
   ModuleBase_Preferences::editPreferences(aModif);
   if (aModif.size() > 0) {
     QString aSection;
-    foreach (ModuleBase_Pref aPref, aModif)
-    {
+    foreach (ModuleBase_Pref aPref, aModif) {
       aSection = aPref.first;
       if (aSection == ModuleBase_Preferences::VIEWER_SECTION) {
         myMainWindow->viewer()->updateFromResources();
@@ -1046,6 +1107,15 @@ void XGUI_Workshop::onPreferences()
         myMainWindow->menuObject()->updateFromResources();
       }
     }
+    std::vector<int> aColor;
+    try {
+      aColor = Config_PropManager::color("Visualization", "selection_color");
+    }
+    catch (...) {
+    }
+    if (aColor.size() == 3)
+      displayer()->setSelectionColor(aColor);
+
     displayer()->redisplayObjects();
   }
 }
@@ -1055,8 +1125,10 @@ void XGUI_Workshop::onPreferences()
 void XGUI_Workshop::onTrihedronVisibilityChanged(bool theState)
 {
   XGUI_Displayer* aDisplayer = displayer();
-  if (aDisplayer)
+  if (aDisplayer) {
     aDisplayer->displayTrihedron(theState);
+    aDisplayer->updateViewer();
+  }
 }
 
 //******************************************************
@@ -1096,8 +1168,10 @@ bool XGUI_Workshop::onSaveAs()
 {
   if(!myOperationMgr->abortAllOperations(XGUI_OperationMgr::XGUI_InformationMessage))
     return false;
+  qreal aRatio = ModuleBase_Tools::currentPixelRatio();
   myCurrentFile = QFileDialog::getSaveFileName(desktop(), tr("Select name to save file..."),
-    QString(), MyFilter2);
+    QString(), MyFilter2,
+    Q_NULLPTR, ((aRatio > 1) ? QFileDialog::DontUseNativeDialog : QFileDialog::Options()));
   if (!myCurrentFile.isNull()) {
     if (!myCurrentFile.endsWith(MyExtension)) {
       myCurrentFile += MyExtension;
@@ -1165,7 +1239,8 @@ void XGUI_Workshop::processUndoRedo(const ModuleBase_ActionType theActionType, i
     else
       aMgr->redo();
 
-    if (QString((*aIt).c_str()) == MOVE_TO_END_COMMAND)
+    if (QString((*aIt).c_str()) == MOVE_TO_END_COMMAND ||
+        QString((*aIt).c_str()) == MOVE_TO_END_SPLIT_COMMAND)
       myObjectBrowser->rebuildDataTree();
   }
   operationMgr()->updateApplyOfOperations();
@@ -1221,6 +1296,40 @@ void XGUI_Workshop::onValuesChanged()
 void XGUI_Workshop::onWidgetObjectUpdated()
 {
   operationMgr()->onValidateOperation();
+  myDisplayer->updateViewer();
+}
+
+//******************************************************
+void XGUI_Workshop::onImportPart()
+{
+  if (abortAllOperations()) {
+    ModuleBase_OperationFeature* anImportPartOp = dynamic_cast<ModuleBase_OperationFeature*>(
+        module()->createOperation(ExchangePlugin_ImportPart::ID()));
+    myPropertyPanel->updateApplyPlusButton(anImportPartOp->feature());
+    operationMgr()->startOperation(anImportPartOp);
+  }
+}
+
+//******************************************************
+void XGUI_Workshop::onImportShape()
+{
+  if (abortAllOperations()) {
+    ModuleBase_OperationFeature* anImportOp = dynamic_cast<ModuleBase_OperationFeature*>(
+        module()->createOperation(ExchangePlugin_Import::ID()));
+    myPropertyPanel->updateApplyPlusButton(anImportOp->feature());
+    operationMgr()->startOperation(anImportOp);
+  }
+}
+
+//******************************************************
+void XGUI_Workshop::onExportPart()
+{
+  if (abortAllOperations()) {
+    ModuleBase_OperationFeature* anExportPartOp = dynamic_cast<ModuleBase_OperationFeature*>(
+        module()->createOperation(ExchangePlugin_ExportPart::ID()));
+    myPropertyPanel->updateApplyPlusButton(anExportPartOp->feature());
+    operationMgr()->startOperation(anExportPartOp);
+  }
 }
 
 //******************************************************
@@ -1388,8 +1497,7 @@ QDockWidget* XGUI_Workshop::createObjectBrowser(QWidget* theParent)
 {
   QDockWidget* aObjDock = new QDockWidget(theParent);
   aObjDock->setAllowedAreas(Qt::LeftDockWidgetArea |
-                            Qt::RightDockWidgetArea |
-                            Qt::BottomDockWidgetArea);
+                            Qt::RightDockWidgetArea);
   aObjDock->setWindowTitle(tr("Object browser"));
   aObjDock->setStyleSheet(
       "::title { position: relative; padding-left: 5px; text-align: left center }");
@@ -1397,6 +1505,9 @@ QDockWidget* XGUI_Workshop::createObjectBrowser(QWidget* theParent)
   myObjectBrowser->initialize(myModule->rootNode());
   myModule->customizeObjectBrowser(myObjectBrowser);
   aObjDock->setWidget(myObjectBrowser);
+  aObjDock->setObjectName("Object browser");
+
+  connect(myObjectBrowser, SIGNAL(sizeChanged()), SLOT(onDockSizeChanged()));
 
   myContextMenuMgr->connectObjectBrowser();
   return aObjDock;
@@ -1417,19 +1528,19 @@ void XGUI_Workshop::createDockWidgets()
 
   myPropertyPanel->setupActions(myActionsMgr);
   myPropertyPanel->setAllowedAreas(Qt::LeftDockWidgetArea |
-                                   Qt::RightDockWidgetArea |
-                                   Qt::BottomDockWidgetArea);
+                                   Qt::RightDockWidgetArea);
   aDesktop->addDockWidget(Qt::LeftDockWidgetArea, myPropertyPanel);
+
   hidePanel(myPropertyPanel);  ///<! Invisible by default
 
-  myFacesPanel = new XGUI_FacesPanel(aDesktop, myModuleConnector);
+  myFacesPanel = new XGUI_FacesPanel(aDesktop, this);
   myActiveControlMgr->addSelector(new XGUI_FacesPanelSelector(myFacesPanel));
   myFacesPanel->setAllowedAreas(Qt::LeftDockWidgetArea |
                                 Qt::RightDockWidgetArea |
                                 Qt::BottomDockWidgetArea);
   connect(myFacesPanel, SIGNAL(closed()), myFacesPanel, SLOT(onClosed()));
 
-  myInspectionPanel = new XGUI_InspectionPanel(aDesktop, mySelector);
+  myInspectionPanel = new XGUI_InspectionPanel(aDesktop, this);
   myInspectionPanel->setAllowedAreas(Qt::LeftDockWidgetArea |
     Qt::RightDockWidgetArea);
   aDesktop->addDockWidget(Qt::RightDockWidgetArea, myInspectionPanel);
@@ -1505,7 +1616,7 @@ void XGUI_Workshop::showPanel(QDockWidget* theDockWidget)
   // 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)
-  ModuleBase_Tools::setFocus(theDockWidget, "XGUI_Workshop::showPanel()");
+  //ModuleBase_Tools::setFocus(theDockWidget, "XGUI_Workshop::showPanel()");
 }
 
 //******************************************************
@@ -1564,16 +1675,16 @@ void XGUI_Workshop::onContextMenuCommand(const QString& theId, bool isChecked)
     deleteObjects();
   else if (theId == "CLEAN_HISTORY_CMD")
     cleanHistory();
-  else if (theId == "MOVE_CMD")
-    moveObjects();
+  else if (theId == "MOVE_CMD" || theId == "MOVE_SPLIT_CMD")
+    moveObjects(theId == "MOVE_SPLIT_CMD");
   else if (theId == "COLOR_CMD")
     changeColor(aObjects);
+  else if (theId == "ISOLINES_CMD")
+    changeIsoLines(aObjects);
   else if (theId == "DEFLECTION_CMD")
     changeDeflection(aObjects);
-#ifdef USE_TRANSPARENCY
   else if (theId == "TRANSPARENCY_CMD")
     changeTransparency(aObjects);
-#endif
   else if (theId == "SHOW_CMD") {
     showObjects(aObjects, true);
     mySelector->updateSelectionBy(ModuleBase_ISelection::Browser);
@@ -1631,6 +1742,10 @@ void XGUI_Workshop::onContextMenuCommand(const QString& theId, bool isChecked)
     highlightResults(aObjects);
   } else if (theId == "SHOW_FEATURE_CMD") {
     highlightFeature(aObjects);
+  } else if (theId == "SET_VIEW_NORMAL_CMD") {
+    setNormalView();
+  } else if (theId == "SET_VIEW_INVERTEDNORMAL_CMD") {
+    setNormalView(true);
   }
 #ifdef TINSPECTOR
   else if (theId == "TINSPECTOR_VIEW") {
@@ -1775,10 +1890,14 @@ void XGUI_Workshop::deleteObjects()
   // allow the module to delete objects, do nothing if it has succeed
   if (aModule->deleteObjects()) {
     updateCommandStatus();
+    myDisplayer->updateViewer();
     return;
   }
 
   QObjectPtrList anObjects = mySelector->selection()->selectedObjects();
+  if (anObjects.isEmpty())
+    return;
+
   if (!abortAllOperations())
     return;
 
@@ -1793,6 +1912,21 @@ void XGUI_Workshop::deleteObjects()
   if (!(hasResult || hasFeature || hasParameter || hasFolder))
     return;
 
+  // Remove from the list non-deletable objects: infinite constructions which are not in history
+  bool notDelete = true;
+  QObjectPtrList::iterator aIt;
+  for (aIt = anObjects.begin(); aIt != anObjects.end(); aIt++) {
+    ObjectPtr aObj = (*aIt);
+    ResultConstructionPtr aConstr = std::dynamic_pointer_cast<ModelAPI_ResultConstruction>(aObj);
+    FeaturePtr aFeature = ModelAPI_Feature::feature(aObj);
+    if (aFeature) {
+      notDelete = (!aFeature->isInHistory()) && aConstr->isInfinite();
+      if (notDelete) {
+        anObjects.removeAll(aObj);
+        aIt--;
+      }
+    }
+  }
   // delete objects
   std::map<FeaturePtr, std::set<FeaturePtr> > aReferences;
   std::set<FeaturePtr> aFeatures;
@@ -1805,7 +1939,7 @@ void XGUI_Workshop::deleteObjects()
   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());
+  ModuleBase_Operation* anOpAction = new ModuleBase_Operation(aDescription, module());
 
   operationMgr()->startOperation(anOpAction);
 
@@ -1835,7 +1969,9 @@ void XGUI_Workshop::deleteObjects()
   std::list<ResultPtr> aResults;
   for(QObjectPtrList::const_iterator anIt = anObjects.begin(); anIt != anObjects.end(); anIt++) {
     ResultPtr aRes = std::dynamic_pointer_cast<ModelAPI_Result>(*anIt);
-    if (aRes.get() && aRes->data()->isValid() && !aRes->data()->isDeleted())
+    if (aRes.get() && aRes->data()->isValid() && !aRes->data()->isDeleted() &&
+        aRes->groupName() != ModelAPI_ResultGroup::group() && // don't remove groups and fields
+        aRes->groupName() != ModelAPI_ResultField::group()) // because they are badly selected
       aResults.push_back(aRes);
   }
   if (!aResults.empty()) {
@@ -1846,6 +1982,8 @@ void XGUI_Workshop::deleteObjects()
     operationMgr()->commitOperation();
   else
     operationMgr()->abortOperation(operationMgr()->currentOperation());
+
+  myDisplayer->updateViewer();
 }
 
 //**************************************************************
@@ -1939,7 +2077,8 @@ void XGUI_Workshop::cleanHistory()
     QString anUnusedNames = aNames.join(", ");
 
     QString anActionId = "CLEAN_HISTORY_CMD";
-    QString aDescription = contextMenuMgr()->action(anActionId)->text();
+    QString aDescription = ModuleBase_Tools::translate("workshop",
+        contextMenuMgr()->action(anActionId)->text().toStdString());
 
     QMessageBox aMessageBox(desktop());
     aMessageBox.setWindowTitle(aDescription);
@@ -1957,7 +2096,7 @@ void XGUI_Workshop::cleanHistory()
     // 1. start operation
     aDescription += "by deleting of " +
       aDescription.arg(XGUI_Tools::unionOfObjectNames(anObjects, ", "));
-    ModuleBase_OperationAction* anOpAction = new ModuleBase_OperationAction(aDescription, module());
+    ModuleBase_Operation* anOpAction = new ModuleBase_Operation(aDescription, module());
     operationMgr()->startOperation(anOpAction);
 
     // WORKAROUND, should be done before each object remove, if it presents in XGUI_DataModel tree
@@ -1996,17 +2135,17 @@ void XGUI_Workshop::cleanHistory()
 }
 
 //**************************************************************
-void XGUI_Workshop::moveObjects()
+bool compareFeature(const FeaturePtr& theF1, const FeaturePtr& theF2) {
+  DocumentPtr aDoc = theF1->document();
+  return aDoc->index(theF1) < aDoc->index(theF2);
+}
+void XGUI_Workshop::moveObjects(const bool theSplit)
 {
   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
@@ -2017,18 +2156,28 @@ void XGUI_Workshop::moveObjects()
   if (!XGUI_Tools::canRemoveOrRename(desktop(), aFeatures))
     return;
 
+  QString anActionId = theSplit ? "MOVE_CMD" : "MOVE_SPLIT_CMD";
+  QString aDescription = contextMenuMgr()->action(anActionId)->text();
+  aMgr->startOperation(aDescription.toStdString());
+
+  // Sort features by index in document
+  std::list<FeaturePtr> aFList(aFeatures.begin(), aFeatures.end());
+  aFList.sort(compareFeature);
+
   DocumentPtr anActiveDocument = aMgr->activeDocument();
   FeaturePtr aCurrentFeature = anActiveDocument->currentFeature(true);
-  std::set<FeaturePtr>::const_iterator anIt = aFeatures.begin(), aLast = aFeatures.end();
+  std::list<FeaturePtr>::const_iterator anIt = aFList.begin(), aLast = aFList.end();
   for (; anIt != aLast; anIt++) {
     FeaturePtr aFeature = *anIt;
     if (!aFeature.get() || !myModule->canApplyAction(aFeature, anActionId))
       continue;
 
-    anActiveDocument->moveFeature(aFeature, aCurrentFeature);
+    anActiveDocument->moveFeature(aFeature, aCurrentFeature, theSplit);
     aCurrentFeature = anActiveDocument->currentFeature(true);
   }
   aMgr->finishOperation();
+  updateCommandStatus();
+  myViewerProxy->update();
 }
 
 //**************************************************************
@@ -2198,11 +2347,8 @@ bool XGUI_Workshop::canBeShaded(const ObjectPtr& theObject) const
 bool XGUI_Workshop::canChangeProperty(const QString& theActionName) const
 {
   if (theActionName == "COLOR_CMD" ||
-      theActionName == "DEFLECTION_CMD"
-#ifdef USE_TRANSPARENCY
-      || theActionName == "TRANSPARENCY_CMD"
-#endif
-      ) {
+      theActionName == "DEFLECTION_CMD" ||
+      theActionName == "TRANSPARENCY_CMD") {
     QObjectPtrList aObjects = mySelector->selection()->selectedObjects();
 
     std::set<std::string> aTypes;
@@ -2216,24 +2362,27 @@ bool XGUI_Workshop::canChangeProperty(const QString& theActionName) const
   return false;
 }
 
-//******************************************************
-void setColor(ResultPtr theResult, const std::vector<int>& theColor)
-{
-  if (!theResult.get())
-    return;
 
-  AttributeIntArrayPtr aColorAttr = theResult->data()->intArray(ModelAPI_Result::COLOR_ID());
-  if (aColorAttr.get() != NULL) {
-    if (!aColorAttr->size()) {
-      aColorAttr->setSize(3);
+//**************************************************************
+void getDefaultColor(ObjectPtr theObject, const bool isEmptyColorValid,
+  std::vector<int>& theColor)
+{
+  theColor.clear();
+  // get default color from the preferences manager for the given result
+  if (theColor.empty()) {
+    std::string aSection, aName, aDefault;
+    theObject->colorConfigInfo(aSection, aName, aDefault);
+    if (!aSection.empty() && !aName.empty()) {
+      theColor = Config_PropManager::color(aSection, aName);
     }
-    aColorAttr->setValue(0, theColor[0]);
-    aColorAttr->setValue(1, theColor[1]);
-    aColorAttr->setValue(2, theColor[2]);
   }
-  static const Events_ID kRedisplayEvent =
-    Events_Loop::loop()->eventByName(EVENT_OBJECT_TO_REDISPLAY);
-  ModelAPI_EventCreator::get()->sendUpdated(theResult, kRedisplayEvent);
+  if (!isEmptyColorValid && theColor.empty()) {
+    // all AIS objects, where the color is not set, are in black.
+    // The color should be defined in XML or set in the attribute
+    theColor = Config_PropManager::color("Visualization", "object_default_color");
+    Events_InfoMessage("XGUI_CustomPrs",
+      "A default color is not defined in the preferences for this kind of result").send();
+  }
 }
 
 //**************************************************************
@@ -2247,7 +2396,9 @@ void XGUI_Workshop::changeColor(const QObjectPtrList& theObjects)
   foreach(ObjectPtr anObject, theObjects) {
     ResultPtr aResult = std::dynamic_pointer_cast<ModelAPI_Result>(anObject);
     if (aResult.get()) {
-      XGUI_CustomPrs::getResultColor(aResult, aColor);
+      ModelAPI_Tools::getColor(aResult, aColor);
+      if (aColor.empty())
+        getDefaultColor(aResult, false, aColor);
     }
     else {
       // TODO: remove the obtaining a color from the AIS object
@@ -2293,42 +2444,16 @@ void XGUI_Workshop::changeColor(const QObjectPtrList& theObjects)
         std::list<ResultPtr> allRes;
         ModelAPI_Tools::allSubs(aBodyResult, allRes);
         for(std::list<ResultPtr>::iterator aRes = allRes.begin(); aRes != allRes.end(); aRes++) {
-          setColor(*aRes, !isRandomColor ? aColorResult : aDlg->getRandomColor());
+          ModelAPI_Tools::setColor(*aRes, !isRandomColor ? aColorResult : aDlg->getRandomColor());
         }
       }
-      setColor(aResult, !isRandomColor ? aColorResult : aDlg->getRandomColor());
+      ModelAPI_Tools::setColor(aResult, !isRandomColor ? aColorResult : aDlg->getRandomColor());
     }
   }
+  Events_Loop::loop()->flush(Events_Loop::eventByName(EVENT_OBJECT_TO_REDISPLAY));
   aMgr->finishOperation();
   updateCommandStatus();
-}
-
-//**************************************************************
-void setDeflection(ResultPtr theResult, const double theDeflection)
-{
-  if (!theResult.get())
-    return;
-
-  AttributeDoublePtr aDeflectionAttr = theResult->data()->real(ModelAPI_Result::DEFLECTION_ID());
-  if (aDeflectionAttr.get() != NULL)
-    aDeflectionAttr->setValue(theDeflection);
-  static const Events_ID kRedisplayEvent =
-    Events_Loop::loop()->eventByName(EVENT_OBJECT_TO_REDISPLAY);
-  ModelAPI_EventCreator::get()->sendUpdated(theResult, kRedisplayEvent);
-}
-
-//**************************************************************
-void setTransparency(ResultPtr theResult, double theTransparency)
-{
-  if (!theResult.get())
-    return;
-
-  AttributeDoublePtr anAttribute = theResult->data()->real(ModelAPI_Result::TRANSPARENCY_ID());
-  if (anAttribute.get() != NULL)
-    anAttribute->setValue(theTransparency);
-  static const Events_ID kRedisplayEvent =
-    Events_Loop::loop()->eventByName(EVENT_OBJECT_TO_REDISPLAY);
-  ModelAPI_EventCreator::get()->sendUpdated(theResult, kRedisplayEvent);
+  myViewerProxy->update();
 }
 
 //**************************************************************
@@ -2341,13 +2466,42 @@ void setTransparency(double theTransparency, const QObjectPtrList& theObjects)
       if (aBodyResult.get() != NULL) { // change property for all sub-solids
         std::list<ResultPtr> allRes;
         ModelAPI_Tools::allSubs(aBodyResult, allRes);
-        for(std::list<ResultPtr>::iterator aRes = allRes.begin(); aRes != allRes.end(); aRes++) {
-          setTransparency(*aRes, theTransparency);
+        std::list<ResultPtr>::iterator aRes;
+        for(aRes = allRes.begin(); aRes != allRes.end(); aRes++) {
+          ModelAPI_Tools::setTransparency(*aRes, theTransparency);
         }
       }
-      setTransparency(aResult, theTransparency);
+      ModelAPI_Tools::setTransparency(aResult, theTransparency);
+    }
+  }
+}
+
+//**************************************************************
+double getDefaultDeflection(const ObjectPtr& theObject)
+{
+  double aDeflection = -1;
+  ResultPtr aResult = std::dynamic_pointer_cast<ModelAPI_Result>(theObject);
+  if (aResult.get()) {
+    bool isConstruction = false;
+
+    std::string aResultGroup = aResult->groupName();
+    if (aResultGroup == ModelAPI_ResultConstruction::group())
+      isConstruction = true;
+    else if (aResultGroup == ModelAPI_ResultBody::group()) {
+      GeomShapePtr aGeomShape = aResult->shape();
+      if (aGeomShape.get()) {
+        // if the shape could not be exploded on faces, it contains only wires, edges, and vertices
+        // correction of deviation for them should not influence to the application performance
+        GeomAPI_ShapeExplorer anExp(aGeomShape, GeomAPI_Shape::FACE);
+        isConstruction = !anExp.more();
+      }
     }
+    if (isConstruction)
+      aDeflection = Config_PropManager::real("Visualization", "construction_deflection");
+    else
+      aDeflection = Config_PropManager::real("Visualization", "body_deflection");
   }
+  return aDeflection;
 }
 
 //**************************************************************
@@ -2360,7 +2514,9 @@ void XGUI_Workshop::changeDeflection(const QObjectPtrList& theObjects)
   foreach(ObjectPtr anObject, theObjects) {
     ResultPtr aResult = std::dynamic_pointer_cast<ModelAPI_Result>(anObject);
     if (aResult.get()) {
-      aDeflection = XGUI_CustomPrs::getResultDeflection(aResult);
+      aDeflection = ModelAPI_Tools::getDeflection(aResult);
+      if (aDeflection < 0)
+        aDeflection = getDefaultDeflection(aResult);
     }
     else {
       // TODO: remove the obtaining a property from the AIS object
@@ -2403,16 +2559,23 @@ void XGUI_Workshop::changeDeflection(const QObjectPtrList& theObjects)
         std::list<ResultPtr> allRes;
         ModelAPI_Tools::allSubs(aBodyResult, allRes);
         for(std::list<ResultPtr>::iterator aRes = allRes.begin(); aRes != allRes.end(); aRes++) {
-          setDeflection(*aRes, aDeflection);
+          ModelAPI_Tools::setDeflection(*aRes, aDeflection);
         }
       }
-      setDeflection(aResult, aDeflection);
+      ModelAPI_Tools::setDeflection(aResult, aDeflection);
     }
   }
+  Events_Loop::loop()->flush(Events_Loop::eventByName(EVENT_OBJECT_TO_REDISPLAY));
   aMgr->finishOperation();
   updateCommandStatus();
 }
 
+//**************************************************************
+double getDefaultTransparency(const ResultPtr& theResult)
+{
+  return Config_PropManager::integer("Visualization", "shaper_default_transparency") / 100.;
+}
+
 //**************************************************************
 void XGUI_Workshop::changeTransparency(const QObjectPtrList& theObjects)
 {
@@ -2423,17 +2586,9 @@ void XGUI_Workshop::changeTransparency(const QObjectPtrList& theObjects)
   foreach(ObjectPtr anObject, theObjects) {
     ResultPtr aResult = std::dynamic_pointer_cast<ModelAPI_Result>(anObject);
     if (aResult.get()) {
-      aCurrentValue = XGUI_CustomPrs::getResultTransparency(aResult);
-    }
-    else {
-      // TODO: remove the obtaining a property from the AIS object
-      // this does not happen never because:
-      // 1. The property can be changed only on results
-      // 2. The result can be not visualized in the viewer(e.g. Origin Construction)
-      AISObjectPtr anAISObj = myDisplayer->getAISObject(anObject);
-      if (anAISObj.get()) {
-        aCurrentValue = anAISObj->getDeflection();
-      }
+      aCurrentValue = ModelAPI_Tools::getTransparency(aResult);
+      if (aCurrentValue < 0)
+        aCurrentValue = getDefaultTransparency(aResult);
     }
     if (aCurrentValue > 0)
       break;
@@ -2442,16 +2597,14 @@ void XGUI_Workshop::changeTransparency(const QObjectPtrList& theObjects)
     return;
 
   if (!abortAllOperations())
-  return;
+    return;
 
   // 2. show the dialog to change the value
   XGUI_PropertyDialog* aDlg = new XGUI_PropertyDialog(desktop());
-  aDlg->setWindowTitle("Transparency");
+  aDlg->setWindowTitle(tr("Transparency"));
   XGUI_TransparencyWidget* aTransparencyWidget = new XGUI_TransparencyWidget(aDlg);
   connect(aTransparencyWidget, SIGNAL(transparencyValueChanged()),
           this, SLOT(onTransparencyValueChanged()));
-  connect(aTransparencyWidget, SIGNAL(previewStateChanged()),
-          this, SLOT(onPreviewStateChanged()));
   aDlg->setContent(aTransparencyWidget);
   aTransparencyWidget->setValue(aCurrentValue);
 
@@ -2460,16 +2613,16 @@ void XGUI_Workshop::changeTransparency(const QObjectPtrList& theObjects)
   QString aDescription = contextMenuMgr()->action("TRANSPARENCY_CMD")->text();
   aMgr->startOperation(aDescription.toStdString());
 
-  aDlg->move(QCursor::pos());
-  bool isDone = aDlg->exec() == QDialog::Accepted;
-  if (!isDone)
-    return;
-
-  // 4. set the value to all results
-  aCurrentValue = aTransparencyWidget->getValue();
-  setTransparency(aCurrentValue, theObjects);
+  if (aDlg->exec() == QDialog::Accepted) {
+    // 4. set the value to all results
+    aCurrentValue = aTransparencyWidget->getValue();
+    setTransparency(aCurrentValue, theObjects);
+    aMgr->finishOperation();
+  } else {
+    aMgr->abortOperation();
+    Events_Loop::loop()->flush(Events_Loop::eventByName(EVENT_OBJECT_TO_REDISPLAY));
+  }
 
-  aMgr->finishOperation();
   updateCommandStatus();
 }
 
@@ -2477,31 +2630,18 @@ void XGUI_Workshop::changeTransparency(const QObjectPtrList& theObjects)
 void XGUI_Workshop::onTransparencyValueChanged()
 {
   XGUI_TransparencyWidget* aTransparencyWidget = (XGUI_TransparencyWidget*)sender();
-  if (!aTransparencyWidget || !aTransparencyWidget->isPreviewNeeded())
+  if (!aTransparencyWidget)
     return;
 
   QObjectPtrList anObjects = mySelector->selection()->selectedObjects();
   setTransparency(aTransparencyWidget->getValue(), anObjects);
-  Events_Loop::loop()->flush(Events_Loop::eventByName(EVENT_OBJECT_TO_REDISPLAY));
-}
-
-//**************************************************************
-void XGUI_Workshop::onPreviewStateChanged()
-{
-  XGUI_TransparencyWidget* aTransparencyWidget = (XGUI_TransparencyWidget*)sender();
-  if (!aTransparencyWidget || !aTransparencyWidget->isPreviewNeeded())
-    return;
+  static const Events_ID kRedisplayEvent =
+    Events_Loop::loop()->eventByName(EVENT_OBJECT_TO_REDISPLAY);
+  Events_Loop::loop()->flush(kRedisplayEvent);
 
-  QObjectPtrList anObjects = mySelector->selection()->selectedObjects();
-  setTransparency(aTransparencyWidget->getValue(), anObjects);
-  Events_Loop::loop()->flush(Events_Loop::eventByName(EVENT_OBJECT_TO_REDISPLAY));
+  myViewerProxy->update();
 }
 
-//**************************************************************
-#define SET_DISPLAY_GROUP(aGroupName, aDisplay) \
-for (int i = 0; i < aDoc->size(aGroupName); i++) { \
-  aDoc->object(aGroupName, i)->setDisplayed(aDisplay); \
-}
 
 //******************************************************
 void XGUI_Workshop::showObjects(const QObjectPtrList& theList, bool isVisible)
@@ -2520,6 +2660,9 @@ void XGUI_Workshop::showObjects(const QObjectPtrList& theList, bool isVisible)
   }
   Events_Loop::loop()->flush(Events_Loop::eventByName(EVENT_OBJECT_TO_REDISPLAY));
   myObjectBrowser->updateAllIndexes();
+
+  updateColorScaleVisibility();
+  displayer()->updateViewer();
 }
 
 //**************************************************************
@@ -2559,6 +2702,79 @@ void XGUI_Workshop::showOnlyObjects(const QObjectPtrList& theList)
 
   // Necessary for update icons in ObjectBrowser on Linux
   myObjectBrowser->updateAllIndexes();
+  updateColorScaleVisibility();
+  displayer()->updateViewer();
+}
+
+
+//**************************************************************
+void XGUI_Workshop::updateColorScaleVisibility()
+{
+  QObjectPtrList aObjects = mySelector->selection()->selectedObjects();
+  viewer()->setColorScaleShown(false);
+  if (aObjects.size() == 1) {
+    FieldStepPtr aStep =
+      std::dynamic_pointer_cast<ModelAPI_ResultField::ModelAPI_FieldStep>(aObjects.first());
+    if (aStep.get() && myDisplayer->isVisible(aStep)) {
+      AISObjectPtr aAisPtr = myDisplayer->getAISObject(aStep);
+      Handle(AIS_InteractiveObject) aIO = aAisPtr->impl<Handle(AIS_InteractiveObject)>();
+      ModuleBase_IStepPrs* aPrs = dynamic_cast<ModuleBase_IStepPrs*>(aIO.get());
+      if (aPrs) {
+        ModelAPI_AttributeTables::ValueType aType = aPrs->dataType();
+        if ((aType == ModelAPI_AttributeTables::DOUBLE) ||
+          (aType == ModelAPI_AttributeTables::INTEGER) ||
+          (aType == ModelAPI_AttributeTables::BOOLEAN)) {
+          myViewerProxy->setupColorScale();
+          if (aType == ModelAPI_AttributeTables::BOOLEAN) {
+            myViewerProxy->setColorScaleIntervals(2);
+            myViewerProxy->setColorScaleRange(0., 1.);
+          }
+          else {
+            double aMin, aMax;
+            aPrs->dataRange(aMin, aMax);
+            myViewerProxy->setColorScaleRange(aMin, aMax);
+          }
+          myViewerProxy->setColorScaleTitle(aStep->name().c_str());
+          myViewerProxy->setColorScaleShown(true);
+        }
+      }
+    }
+  }
+}
+
+
+//**************************************************************
+void XGUI_Workshop::setNormalView(bool toInvert)
+{
+  QList<ModuleBase_ViewerPrsPtr> aPrsList =
+    mySelector->selection()->getSelected(ModuleBase_ISelection::Viewer);
+  GeomShapePtr aPlanarFace;
+  foreach(ModuleBase_ViewerPrsPtr aPrs, aPrsList) {
+    GeomShapePtr aShape = aPrs->shape();
+    if (aShape.get() && aShape->isPlanar()) {
+      aPlanarFace = aShape;
+      break;
+    }
+  }
+  if (aPlanarFace.get()) {
+    GeomFacePtr aFace(new GeomAPI_Face(aPlanarFace));
+    GeomPlanePtr aPlane = aFace->getPlane();
+    GeomDirPtr aNormal = aPlane->direction();
+    if (toInvert)
+      aNormal->reverse();
+    GeomPointPtr aPos = aPlane->location();
+
+    double aXmin, aYmin, aZmin, aXmax, aYmax, aZmax;
+    aFace->computeSize(aXmin, aYmin, aZmin, aXmax, aYmax, aZmax);
+
+    Handle(V3d_View) aView = myViewerProxy->activeView();
+    double aScale = aView->Scale();
+    aView->SetAt(aPos->x(), aPos->y(), aPos->z());
+    aView->SetProj(aNormal->x(), aNormal->y(), aNormal->z());
+    Bnd_Box aBox;
+    aBox.Update(aXmin, aYmin, aZmin, aXmax, aYmax, aZmax);
+    aView->FitAll(aBox);
+  }
 }
 
 //**************************************************************
@@ -2695,33 +2911,45 @@ void XGUI_Workshop::synchronizeViewer()
   aDocs.append(aMgr->moduleDocument());
 
   foreach(DocumentPtr aDoc, aDocs) {
-    synchronizeGroupInViewer(aDoc, ModelAPI_ResultConstruction::group(), false);
-    synchronizeGroupInViewer(aDoc, ModelAPI_ResultBody::group(), false);
-    synchronizeGroupInViewer(aDoc, ModelAPI_ResultPart::group(), false);
-    synchronizeGroupInViewer(aDoc, ModelAPI_ResultGroup::group(), false);
+    synchronizeGroupInViewer(aDoc, false);
   }
 }
 
 //******************************************************
 void XGUI_Workshop::synchronizeGroupInViewer(const DocumentPtr& theDoc,
-                                             const std::string& theGroup,
                                              bool theUpdateViewer)
 {
-  ObjectPtr aObj;
-  int aSize = theDoc->size(theGroup);
+  FeaturePtr aFeature;
+  ResultPtr aRes;
+  int aSize = theDoc->numInternalFeatures();
   for (int i = 0; i < aSize; i++) {
-    aObj = theDoc->object(theGroup, i);
-    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;
-      ResultBodyPtr aResBody = std::dynamic_pointer_cast<ModelAPI_ResultBody>(aObj);
-      if (aResBody.get())
-        synchronizeResultTree(aResBody, false);
-      else
-        myDisplayer->display(aObj, false);
+    aFeature = theDoc->internalFeature(i);
+    if (!aFeature.get())
+      continue;
+    const std::list<ResultPtr>& aResults = aFeature->results();
+    std::list<ResultPtr>::const_iterator aIt;
+    aFeature->setDisplayed(false);
+    for (aIt = aResults.cbegin(); aIt != aResults.cend(); aIt++) {
+      aRes = (*aIt);
+      if (aRes->isDisplayed() && !aRes->isConcealed()) {
+        // 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
+        if (!aRes->shape().get() || aRes->shape()->isNull())
+          continue;
+        ResultBodyPtr aResBody = std::dynamic_pointer_cast<ModelAPI_ResultBody>(aRes);
+        if (aResBody.get())
+          synchronizeResultTree(aResBody, false);
+        else {
+          if (aRes->isInHistory()) {
+            if (aRes->isDisplayed())
+              myDisplayer->display(aRes, false);
+            else
+              myDisplayer->erase(aRes, false);
+          }
+          else
+            aRes->setDisplayed(false);
+        }
+      }
     }
   }
   if (theUpdateViewer)
@@ -2736,8 +2964,12 @@ void XGUI_Workshop::synchronizeResultTree(const ResultBodyPtr& theRes, bool theU
       if (aRes.get())
         synchronizeResultTree(aRes, theUpdateViewer);
     }
-  else
-    myDisplayer->display(theRes, theUpdateViewer);
+  else {
+    if (theRes->isDisplayed())
+      myDisplayer->display(theRes, theUpdateViewer);
+    else
+      myDisplayer->erase(theRes, theUpdateViewer);
+  }
 }
 #endif
 
@@ -2909,4 +3141,83 @@ void XGUI_Workshop::clearTemporaryDir()
       aDir.remove(aFile);
     }
   }
+}
+
+
+void XGUI_Workshop::onDockSizeChanged()
+{
+  QDockWidget* aDockWgt = dynamic_cast<QDockWidget*>(myObjectBrowser->parentWidget());
+  int aObWidth = aDockWgt->size().width();
+  if (myPropertyPanel->width() != aObWidth) {
+    QList<QDockWidget*> aWgtList;
+    aWgtList << myPropertyPanel << aDockWgt;
+    QList<int> aSizeList;
+    aSizeList << aObWidth << aObWidth;
+    desktop()->resizeDocks(aWgtList, aSizeList, Qt::Horizontal);
+    disconnect(myObjectBrowser, SIGNAL(sizeChanged()), this, SLOT(onDockSizeChanged()));
+  }
+}
+
+void XGUI_Workshop::deactivateCurrentSelector()
+{
+  myActiveControlMgr->deactivateSelector(myActiveControlMgr->activeSelector());
+}
+
+void XGUI_Workshop::changeIsoLines(const QObjectPtrList& theObjects)
+{
+  if (theObjects.isEmpty())
+    return;
+
+  std::vector<int> aValues;
+  if (theObjects.size() == 1) {
+    ResultPtr aRes = std::dynamic_pointer_cast<ModelAPI_Result>(theObjects.first());
+    if (aRes.get())
+      ModelAPI_Tools::getIsoLines(aRes, aValues);
+    else
+      return;
+  }
+  if (aValues.size() == 0) {
+    aValues.push_back(1);
+    aValues.push_back(1);
+  }
+
+  if (!abortAllOperations())
+    return;
+
+  QDialog aDlg;
+  aDlg.setWindowTitle(tr("Number of Iso-lines"));
+  QFormLayout* aLayout = new QFormLayout(&aDlg);
+
+  QSpinBox* aUNb = new QSpinBox(&aDlg);
+  aUNb->setValue(aValues[0]);
+  aLayout->addRow("U:", aUNb);
+
+  QSpinBox* aVNb = new QSpinBox(&aDlg);
+  aVNb->setValue(aValues[1]);
+  aLayout->addRow("V:", aVNb);
+
+  QDialogButtonBox* aButtons =
+    new QDialogButtonBox(QDialogButtonBox::Ok | QDialogButtonBox::Cancel, Qt::Horizontal, &aDlg);
+  connect(aButtons, SIGNAL(accepted()), &aDlg, SLOT(accept()));
+  connect(aButtons, SIGNAL(rejected()), &aDlg, SLOT(reject()));
+  aLayout->addRow(aButtons);
+
+  if (aDlg.exec() == QDialog::Accepted) {
+    SessionPtr aMgr = ModelAPI_Session::get();
+    QString aDescription = contextMenuMgr()->action("ISOLINES_CMD")->text();
+    aMgr->startOperation(aDescription.toStdString());
+
+    aValues[0] = aUNb->value();
+    aValues[1] = aVNb->value();
+    ResultPtr aRes;
+    foreach(ObjectPtr aObj, theObjects) {
+      aRes = std::dynamic_pointer_cast<ModelAPI_Result>(aObj);
+      if (aRes.get()) {
+        ModelAPI_Tools::setIsoLines(aRes, aValues);
+      }
+    }
+    Events_Loop::loop()->flush(Events_Loop::eventByName(EVENT_OBJECT_TO_REDISPLAY));
+    aMgr->finishOperation();
+    updateCommandStatus();
+  }
 }
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