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DOF is visualized in label widget.
[modules/shaper.git] / src / XGUI / XGUI_Workshop.cpp
index 61d1796be2cc134fe487b0048fe280c19c4127e9..fbdb6379b393f11fddb917661ea703cfa44ac69f 100755 (executable)
@@ -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"
@@ -66,6 +67,9 @@
 #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 <Config_Common.h>
 #include <Config_FeatureMessage.h>
@@ -73,6 +77,7 @@
 #include <Config_PointerMessage.h>
 #include <Config_PropManager.h>
 #include <Config_SelectionFilterMessage.h>
+#include <Config_DataModelReader.h>
 
 #include <SUIT_ResourceMgr.h>
 
 QString XGUI_Workshop::MOVE_TO_END_COMMAND = QObject::tr("Move to the end");
 
 //#define DEBUG_DELETE
+//#define DEBUG_FEATURE_NAME
 
 XGUI_Workshop::XGUI_Workshop(XGUI_SalomeConnector* theConnector)
     : QObject(),
@@ -116,7 +122,8 @@ XGUI_Workshop::XGUI_Workshop(XGUI_SalomeConnector* theConnector)
       mySalomeConnector(theConnector),
       myPropertyPanel(0),
       myObjectBrowser(0),
-      myDisplayer(0)
+      myDisplayer(0),
+      myViewerSelMode(TopAbs_FACE)
 {
 #ifndef HAVE_SALOME
   myMainWindow = new AppElements_MainWindow();
@@ -129,6 +136,9 @@ XGUI_Workshop::XGUI_Workshop(XGUI_SalomeConnector* theConnector)
     QLocale::setDefault( QLocale::system() );
 #endif
 
+  myDataModelXMLReader = new Config_DataModelReader();
+  myDataModelXMLReader->readAll();
+
   myDisplayer = new XGUI_Displayer(this);
 
   mySelector = new XGUI_SelectionMgr(this);
@@ -136,14 +146,15 @@ XGUI_Workshop::XGUI_Workshop(XGUI_SalomeConnector* theConnector)
 
   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()));
+  //connect(myViewerProxy, SIGNAL(selectionChanged()),
+  //        myActionsMgr,  SLOT(updateOnViewSelection()));
 
   myModuleConnector = new XGUI_ModuleConnector(this);
 
@@ -184,12 +195,16 @@ 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());
+  
+  myViewerSelMode = 
+    ModuleBase_Preferences::resourceMgr()->integerValue("Viewer", "selection", TopAbs_FACE);
 }
 
 //******************************************************
 XGUI_Workshop::~XGUI_Workshop(void)
 {
   delete myDisplayer;
+  delete myDataModelXMLReader;
 }
 
 //******************************************************
@@ -235,12 +250,11 @@ void XGUI_Workshop::activateModule()
 
   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()
@@ -258,6 +272,8 @@ void XGUI_Workshop::deactivateModule()
   XGUI_Displayer* aDisplayer = displayer();
   QObjectPtrList aDisplayed = aDisplayer->displayedObjects();
   aDisplayer->deactivateObjects(aDisplayed, true);
+
+  myOperationMgr->deactivate();
 }
 
 //******************************************************
@@ -294,12 +310,12 @@ void XGUI_Workshop::initMenu()
   //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"),
+  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 NewGeom..."), tr("Import a NewGeom file"),
+  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()));
@@ -399,6 +415,21 @@ void XGUI_Workshop::onAcceptActionClicked()
   }
 }
 
+//******************************************************
+void XGUI_Workshop::onPreviewActionClicked()
+{
+  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)
 {
@@ -429,46 +460,107 @@ bool XGUI_Workshop::isFeatureOfNested(const FeaturePtr& theFeature)
   return aHasNested;
 }
 
-//******************************************************
-void XGUI_Workshop::onOperationStarted(ModuleBase_Operation* theOperation)
+void XGUI_Workshop::setPropertyPanel(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 '" + aFeatureKind + "' has no attribute '"
+          + aWidget->attributeID() + "' used by widget '"
+          + aWidget->metaObject()->className() + "'.";
+      Events_Error::send(anErrorMsg);
+      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);
+
+  // 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);
 
-  connectToPropertyPanel(true);
-  myModule->operationStarted(aFOperation);
+  myModule->propertyPanelDefined(theOperation);
 
-  // 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();
+#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()));
+      }
+    }
+  }
+}
+
+//******************************************************
+void XGUI_Workshop::onOperationStarted(ModuleBase_Operation* theOperation)
+{
+  setGrantedFeatures(theOperation);
+  myModule->operationStarted(theOperation);
 }
 
 //******************************************************
@@ -521,9 +613,7 @@ void XGUI_Workshop::onOperationStopped(ModuleBase_Operation* theOperation)
       }
     }
   }
-  QIntList aModes;
-  module()->activeSelectionModes(aModes);
-  myDisplayer->activateObjects(aModes, anObjects);
+  activateObjectsSelection(anObjects);
 }
 
 
@@ -544,8 +634,13 @@ 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());
 
@@ -556,68 +651,6 @@ 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);
-}
-
-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)));
-      }
-      else {
-        disconnect(aWidget, SIGNAL(valueStateChanged(int)), this, SLOT(onWidgetStateChanged(int)));
-      }
-    }
-  }
-}
 
 /*
  * Saves document with given name.
@@ -886,6 +919,33 @@ void XGUI_Workshop::onWidgetStateChanged(int thePreviousState)
   myModule->widgetStateChanged(thePreviousState);
 }
 
+//******************************************************
+void XGUI_Workshop::onValuesChanged()
+{
+  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()));
@@ -959,6 +1019,9 @@ bool XGUI_Workshop::createModule()
   //  myModule, SLOT(onBeforeObjectErase(ObjectPtr, AISObjectPtr)));
 
   myModule->createFeatures();
+#ifdef HAVE_SALOME
+  salomeConnector()->createFeatureActions();
+#endif
   //myActionsMgr->update();
   return true;
 }
@@ -1022,6 +1085,7 @@ 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);
 
@@ -1053,11 +1117,14 @@ void XGUI_Workshop::createDockWidgets()
 
   QAction* aCancelAct = myActionsMgr->operationStateAction(XGUI_ActionsMgr::Abort);
   connect(aCancelAct, SIGNAL(triggered()), myOperationMgr, SLOT(onAbortOperation()));
-  connect(myPropertyPanel, SIGNAL(keyReleased(QKeyEvent*)),
-          myOperationMgr,  SLOT(onKeyReleased(QKeyEvent*)));
 
-  connect(myPropertyPanel, SIGNAL(enterClicked()),
-          myOperationMgr,  SLOT(onProcessEnter()));
+  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*)));
 }
 
 //******************************************************
@@ -1091,7 +1158,7 @@ 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
+  // 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()");
@@ -1156,9 +1223,37 @@ 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);
+  } else if (theId == "SHOW_RESULTS_CMD") {
+    highlightResults(aObjects);
   }
 }
 
+//**************************************************************
+void XGUI_Workshop::setViewerSelectionMode(int theMode)
+{
+  myViewerSelMode = theMode;
+  activateObjectsSelection(myDisplayer->displayedObjects());
+}
+
+//**************************************************************
+void XGUI_Workshop::activateObjectsSelection(const QObjectPtrList& theList)
+{
+  QIntList aModes;
+  module()->activeSelectionModes(aModes);
+  if (aModes.isEmpty() && (myViewerSelMode != -1))
+    aModes.append(myViewerSelMode);
+  myDisplayer->activateObjects(aModes, theList);
+}
+
+
 //**************************************************************
 void XGUI_Workshop::deleteObjects()
 {
@@ -1172,9 +1267,6 @@ void XGUI_Workshop::deleteObjects()
   QObjectPtrList anObjects = mySelector->selection()->selectedObjects();
   if (!abortAllOperations())
     return;
-  // 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(desktop(), anObjects))
     return;
@@ -1182,24 +1274,36 @@ void XGUI_Workshop::deleteObjects()
   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 += " " + aDescription.arg(XGUI_Tools::unionOfObjectNames(anObjects, ", "));
-  ModuleBase_OperationAction* anOpAction = new ModuleBase_OperationAction(aDescription, module());
-  operationMgr()->startOperation(anOpAction);
-
   // 3. delete objects
   std::set<FeaturePtr> anIgnoredFeatures;
-  if (deleteFeatures(anObjects, anIgnoredFeatures, desktop(), true)) {
-    operationMgr()->commitOperation();
-  }
-  else {
-    operationMgr()->abortOperation(operationMgr()->currentOperation());
+  std::set<FeaturePtr> aDirectRefFeatures, aIndirectRefFeatures;
+  ModuleBase_Tools::findReferences(anObjects, aDirectRefFeatures, aIndirectRefFeatures);
+
+  bool doDeleteReferences = true;
+  if (ModuleBase_Tools::isDeleteFeatureWithReferences(anObjects, aDirectRefFeatures, 
+      aIndirectRefFeatures, desktop(), doDeleteReferences)) {
+    // start operation
+    QString aDescription = contextMenuMgr()->action("DELETE_CMD")->text();
+    aDescription += " " + aDescription.arg(XGUI_Tools::unionOfObjectNames(anObjects, ", "));
+    ModuleBase_OperationAction* anOpAction = new ModuleBase_OperationAction(aDescription, module());
+    operationMgr()->startOperation(anOpAction);
+
+    // 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();
+
+    // delete and commit/abort operation in model
+    if (deleteFeaturesInternal(anObjects, aDirectRefFeatures, aIndirectRefFeatures,
+                               anIgnoredFeatures, doDeleteReferences))
+      operationMgr()->commitOperation();
+    else
+      operationMgr()->abortOperation(operationMgr()->currentOperation());
   }
 }
 
@@ -1210,31 +1314,47 @@ void XGUI_Workshop::cleanHistory()
     return;
 
   QObjectPtrList anObjects = mySelector->selection()->selectedObjects();
+  QObjectPtrList aFeatures;
+  foreach (ObjectPtr anObject, anObjects) {
+    FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(anObject);
+    // for parameter result, use the corresponded reature to be removed
+    if (!aFeature.get() && anObject->groupName() == ModelAPI_ResultParameter::group()) {
+      aFeature = ModelAPI_Feature::feature(anObject);
+    }
+    aFeatures.append(aFeature);
+  }
 
   // 1. find all referenced features
-  std::set<FeaturePtr> anUnusedFeatures;
+  QList<ObjectPtr> anUnusedObjects;
   std::set<FeaturePtr> aDirectRefFeatures;
-  foreach (ObjectPtr anObject, anObjects) {
+  //foreach (ObjectPtr anObject, anObjects) {
+  foreach (ObjectPtr anObject, aFeatures) {
     FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(anObject);
+    // for parameter result, use the corresponded reature to be removed
+    //if (!aFeature.get() && anObject->groupName() == ModelAPI_ResultParameter::group()) {
+    //  aFeature = ModelAPI_Feature::feature(anObject);
+    //}
     if (aFeature.get()) {
       std::set<FeaturePtr> alreadyProcessed;
       aDirectRefFeatures.clear();
-      XGUI_Tools::refsDirectToFeatureInAllDocuments(anObject, anObject, anObjects,
+      ModuleBase_Tools::refsDirectToFeatureInAllDocuments(aFeature, aFeature, aFeatures,
                                                     aDirectRefFeatures, alreadyProcessed);
-      if (aDirectRefFeatures.empty() && anUnusedFeatures.find(aFeature) == anUnusedFeatures.end())
-        anUnusedFeatures.insert(aFeature);
+      if (aDirectRefFeatures.empty() && !anUnusedObjects.contains(aFeature))
+        anUnusedObjects.append(aFeature);
     }
   }
 
   // 2. warn about the references remove, break the delete operation if the user chose it
-  if (!anUnusedFeatures.empty()) {
+  if (!anUnusedObjects.empty()) {
     QStringList aNames;
-    foreach (const FeaturePtr& aFeature, anUnusedFeatures)
+    foreach (const ObjectPtr& anObject, anUnusedObjects) {
+      FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(anObject);
       aNames.append(aFeature->name().c_str());
+    }
     QString anUnusedNames = aNames.join(", ");
 
     QString anActionId = "CLEAN_HISTORY_CMD";
-    QString aDescription = contextMenuMgr()->action("DELETE_CMD")->text();
+    QString aDescription = contextMenuMgr()->action(anActionId)->text();
 
     QMessageBox aMessageBox(desktop());
     aMessageBox.setWindowTitle(aDescription);
@@ -1244,6 +1364,21 @@ void XGUI_Workshop::cleanHistory()
 
     QString aText = QString(tr("Unused features are the following: %1.\nThese features will be deleted.\nWould you like to continue?")
                    .arg(anUnusedNames));
+    /*QString aText;
+    if (anUnusedNames.isEmpty()) {
+      aMessageBox.setStandardButtons(QMessageBox::Ok);
+      aMessageBox.setDefaultButton(QMessageBox::Ok);
+
+      aText = QString(tr("All features are relevant, there is nothing to be deleted"));
+    }
+    else {
+      aMessageBox.setStandardButtons(QMessageBox::No | QMessageBox::Yes);
+      aMessageBox.setDefaultButton(QMessageBox::No);
+
+      aText = QString(tr("Unused features are the following: %1.\nThese features will be deleted.\nWould you like to continue?")
+        .arg(anUnusedNames));
+    }*/
+
     aMessageBox.setText(aText);
     if (aMessageBox.exec() == QMessageBox::No)
       return;
@@ -1253,14 +1388,39 @@ void XGUI_Workshop::cleanHistory()
     ModuleBase_OperationAction* anOpAction = new ModuleBase_OperationAction(aDescription, module());
     operationMgr()->startOperation(anOpAction);
 
+    // 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 (removeFeatures(anObjects, anIgnoredFeatures, anActionId)) {
+    if (removeFeatures(anUnusedObjects, anIgnoredFeatures, anActionId, true)) {
       operationMgr()->commitOperation();
     }
     else {
       operationMgr()->abortOperation(operationMgr()->currentOperation());
     }
   }
+  else {
+    QString anActionId = "CLEAN_HISTORY_CMD";
+    QString aDescription = contextMenuMgr()->action(anActionId)->text();
+
+    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;
+  }
 }
 
 //**************************************************************
@@ -1299,87 +1459,22 @@ void XGUI_Workshop::moveObjects()
 }
 
 //**************************************************************
-bool XGUI_Workshop::deleteFeatures(const QObjectPtrList& theList,
-                                   const std::set<FeaturePtr>& theIgnoredFeatures,
-                                   QWidget* theParent,
-                                   const bool theAskAboutDeleteReferences)
+bool XGUI_Workshop::deleteFeatures(const QObjectPtrList& theFeatures,
+                                   const std::set<FeaturePtr>& theIgnoredFeatures)
 {
-#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());
-#endif
-
-  // 1. find all referenced features
   std::set<FeaturePtr> aDirectRefFeatures, aIndirectRefFeatures;
-  foreach (ObjectPtr aDeletedObj, theList) {
-    std::set<FeaturePtr> alreadyProcessed;
-    XGUI_Tools::refsToFeatureInAllDocuments(aDeletedObj, aDeletedObj, theList, 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;
-      }
-    }
-
-    QMessageBox aMessageBox(theParent);
-    aMessageBox.setWindowTitle(tr("Delete features"));
-    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));
-    }
-    aMessageBox.setText(aText);
-    aMessageBox.exec();
-    QMessageBox::ButtonRole aButtonRole = aMessageBox.buttonRole(aMessageBox.clickedButton());
-
-    if (aButtonRole == QMessageBox::NoRole)
-      return false;
-
-    if (aButtonRole == QMessageBox::ActionRole) {
-      foreach (ObjectPtr aObj, theList)
-        ModelAPI_ReplaceParameterMessage::send(aObj, this);
-      doDeleteReferences = false;
-    }
-  }
+  ModuleBase_Tools::findReferences(theFeatures, aDirectRefFeatures, aIndirectRefFeatures);
+  return deleteFeaturesInternal(theFeatures, aDirectRefFeatures, aIndirectRefFeatures,
+                                theIgnoredFeatures);
+}
 
-  // 3. remove referenced features
+bool XGUI_Workshop::deleteFeaturesInternal(const QObjectPtrList& theList,
+                                           const std::set<FeaturePtr>& aDirectRefFeatures,
+                                           const std::set<FeaturePtr>& aIndirectRefFeatures,
+                                           const std::set<FeaturePtr>& theIgnoredFeatures,
+                                           const bool doDeleteReferences)
+{
+  bool isDone = false;
   if (doDeleteReferences) {
     std::set<FeaturePtr> aFeaturesToDelete = aDirectRefFeatures;
     aFeaturesToDelete.insert(aIndirectRefFeatures.begin(), aIndirectRefFeatures.end());
@@ -1392,7 +1487,9 @@ bool XGUI_Workshop::deleteFeatures(const QObjectPtrList& theList,
       FeaturePtr aFeature = (*anIt);
       DocumentPtr aDoc = aFeature->document();
       if (theIgnoredFeatures.find(aFeature) == theIgnoredFeatures.end()) {
+        // flush REDISPLAY signal after remove feature
         aDoc->removeFeature(aFeature);
+        isDone = true;
 #ifdef DEBUG_DELETE
         anInfo.append(ModuleBase_Tools::objectInfo(aFeature).toStdString().c_str());
 #endif
@@ -1405,13 +1502,21 @@ bool XGUI_Workshop::deleteFeatures(const QObjectPtrList& theList,
   }
 
   QString anActionId = "DELETE_CMD";
-  removeFeatures(theList, theIgnoredFeatures, anActionId);
+  isDone = removeFeatures(theList, theIgnoredFeatures, anActionId, false) || isDone;
+
+  if (isDone) {
+    // the redisplay signal should be flushed in order to erase the feature presentation in the viewer
+    // if should be done after removeFeature() of document
+    Events_Loop::loop()->flush(Events_Loop::loop()->eventByName(EVENT_OBJECT_TO_REDISPLAY));
+  }
+  return isDone;
 }
 
 //**************************************************************
 bool XGUI_Workshop::removeFeatures(const QObjectPtrList& theList,
                                    const std::set<FeaturePtr>& theIgnoredFeatures,
-                                   const QString& theActionId)
+                                   const QString& theActionId,
+                                   const bool theFlushRedisplay)
 {
   bool isDone = false;
 
@@ -1439,11 +1544,18 @@ bool XGUI_Workshop::removeFeatures(const QObjectPtrList& theList,
         anInfo.append(anInfoStr);
         qDebug(QString("remove feature :%1").arg(anInfoStr).toStdString().c_str());
 #endif
+        // flush REDISPLAY signal after remove feature
         aDoc->removeFeature(aFeature);
         isDone = true;
       }
     }
   }
+  if (isDone && theFlushRedisplay) {
+    // the redisplay signal should be flushed in order to erase the feature presentation in the viewer
+    // if should be done after removeFeature() of document
+    Events_Loop::loop()->flush(Events_Loop::loop()->eventByName(EVENT_OBJECT_TO_REDISPLAY));
+  }
+
 #ifdef DEBUG_DELETE
   qDebug(QString("remove features:%1").arg(anInfo.join("; ")).toStdString().c_str());
 #endif
@@ -1549,7 +1661,7 @@ 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;
@@ -1851,9 +1963,38 @@ 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;
+  foreach(ObjectPtr aObj, theObjects) {
+    aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(aObj);
+    if (aFeature.get()) {
+      aResList = aFeature->results();
+      std::list<std::shared_ptr<ModelAPI_Result> >::const_iterator aIt;
+      for(aIt = aResList.cbegin(); aIt != aResList.cend(); aIt++) {
+        aSelList.append(*aIt);
+      }
+    }
+  }
+  if (aSelList.count() > theObjects.count()) {
+    // if something was found
+    bool aBlocked = objectBrowser()->blockSignals(true);
+    objectBrowser()->setObjectsSelected(aSelList);
+    objectBrowser()->blockSignals(aBlocked);
+  }
+}