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Issue #2288: Update column with icons in object browser on Linux
[modules/shaper.git] / src / XGUI / XGUI_Workshop.cpp
index 462359e0976930a15071f07b66ef740c351b3a27..17be4e5309218cd94261291618e6ae54b8dc33ff 100755 (executable)
@@ -24,6 +24,7 @@
 #include "XGUI_MenuMgr.h"
 #include "XGUI_ColorDialog.h"
 #include "XGUI_DeflectionDialog.h"
+#include "XGUI_TransparencyWidget.h"
 #include "XGUI_ContextMenuMgr.h"
 #include "XGUI_Displayer.h"
 #include "XGUI_ErrorDialog.h"
@@ -32,6 +33,7 @@
 #include "XGUI_ObjectsBrowser.h"
 #include "XGUI_OperationMgr.h"
 #include "XGUI_PropertyPanel.h"
+#include "XGUI_PropertyDialog.h"
 #include "XGUI_SalomeConnector.h"
 #include "XGUI_Selection.h"
 #include "XGUI_SelectionMgr.h"
@@ -53,6 +55,8 @@
 #include <AppElements_Workbench.h>
 #endif
 
+#include <Config_XMLReader.h>
+
 #include <ModelAPI_AttributeDocRef.h>
 #include <ModelAPI_AttributeIntArray.h>
 #include <ModelAPI_AttributeDouble.h>
 #ifdef TINSPECTOR
 #include <CDF_Session.hxx>
 #include <CDF_Application.hxx>
-#include <TInspector_Communicator.hxx>
-#include <VInspector_CallBack.hxx>
+#include <inspector/TInspector_Communicator.hxx>
+#include <inspector/VInspector_CallBack.hxx>
 static TInspector_Communicator* MyTCommunicator;
 static Handle(VInspector_CallBack) MyVCallBack;
 
@@ -293,7 +297,14 @@ void XGUI_Workshop::startApplication()
   Config_PropManager::registerProp("Plugins", "default_path", "Default Path",
                                    Config_Prop::Directory, "");
 
+  std::string aDir = Config_XMLReader::resourcesConfigFile();
+  Config_PropManager::registerProp("Plugins", "import_initial_path", "Import initial directory",
+                                   Config_Prop::Directory, aDir);
 
+#ifdef _DEBUG
+  Config_PropManager::registerProp("Plugins", "create_part_by_start", "Create Part by Start",
+    Config_Prop::Boolean, "false");
+#endif
   registerValidators();
 
   // Calling of  loadCustomProps before activating module is required
@@ -313,6 +324,13 @@ void XGUI_Workshop::startApplication()
           SLOT(onTrihedronVisibilityChanged(bool)));
 
   emit applicationStarted();
+
+#ifdef _DEBUG
+  bool aNewPart = Config_PropManager::boolean("Plugins", "create_part_by_start");
+  if (aNewPart) {
+      module()->launchOperation("Part", false); // PartSetPlugin_Part::ID()
+  }
+#endif
 }
 
 void XGUI_Workshop::activateModule()
@@ -600,8 +618,6 @@ void XGUI_Workshop::fillPropertyPanel(ModuleBase_Operation* theOperation)
       aWidget->restoreValue();
     aWidget->enableFocusProcessing();
   }
-  ModuleBase_Tools::flushUpdated(aFeature);
-
   // update visible state of Preview button
   std::shared_ptr<Config_FeatureMessage> aFeatureInfo;
 #ifdef HAVE_SALOME
@@ -630,6 +646,10 @@ void XGUI_Workshop::fillPropertyPanel(ModuleBase_Operation* theOperation)
                   new Events_Message(Events_Loop::eventByName(EVENT_PREVIEW_BLOCKED)));
     Events_Loop::loop()->send(aMsg);
   }
+  // if update happens after preview is blocked, it does nothing when blocked
+  // it improves performance for valid objects on feature start
+  ModuleBase_Tools::flushUpdated(aFeature);
+
   myPropertyPanel->setModelWidgets(aWidgets);
   aFOperation->setPropertyPanel(myPropertyPanel);
 
@@ -776,6 +796,12 @@ void XGUI_Workshop::saveDocument(const QString& theName, std::list<std::string>&
   QApplication::restoreOverrideCursor();
 }
 
+//******************************************************
+bool XGUI_Workshop::abortAllOperations()
+{
+  return myOperationMgr->abortAllOperations();
+}
+
 //******************************************************
 void XGUI_Workshop::operationStarted(ModuleBase_Operation* theOperation)
 {
@@ -791,7 +817,7 @@ void XGUI_Workshop::operationStarted(ModuleBase_Operation* theOperation)
 //******************************************************
 void XGUI_Workshop::onOpen()
 {
-  if(!myOperationMgr->abortAllOperations())
+  if(!abortAllOperations())
     return;
   //save current file before close if modified
   SessionPtr aSession = ModelAPI_Session::get();
@@ -845,6 +871,22 @@ void XGUI_Workshop::openDirectory(const QString& theDirectory)
 #ifndef HAVE_SALOME
   myMainWindow->setCurrentDir(myCurrentDir, true);
 #endif
+
+#ifdef _DEBUG
+  bool aNewPart = Config_PropManager::boolean("Plugins", "create_part_by_start");
+  if (aNewPart) {
+
+    DocumentPtr aRootDoc = ModelAPI_Session::get()->moduleDocument();
+    int aSize = aRootDoc->size(ModelAPI_ResultPart::group());
+    if (aSize > 0 ) {
+      ObjectPtr aObject = aRootDoc->object(ModelAPI_ResultPart::group(), 0);
+      ResultPartPtr aPart = std::dynamic_pointer_cast<ModelAPI_ResultPart>(aObject);
+      if (aPart.get())
+        aPart->activate();
+    }
+  }
+#endif
+
   QApplication::restoreOverrideCursor();
 }
 
@@ -976,6 +1018,10 @@ bool XGUI_Workshop::onSaveAs()
 //******************************************************
 void XGUI_Workshop::onUndo(int theTimes)
 {
+  ModuleBase_ModelWidget* anActiveWidget = myOperationMgr->activeWidget();
+  if (anActiveWidget && anActiveWidget->processAction(ActionUndo))
+    return;
+
   objectBrowser()->treeView()->setCurrentIndex(QModelIndex());
   SessionPtr aMgr = ModelAPI_Session::get();
   std::list<std::string> aUndoList = aMgr->undoList();
@@ -999,6 +1045,10 @@ void XGUI_Workshop::onUndo(int theTimes)
 //******************************************************
 void XGUI_Workshop::onRedo(int theTimes)
 {
+  ModuleBase_ModelWidget* anActiveWidget = myOperationMgr->activeWidget();
+  if (anActiveWidget && anActiveWidget->processAction(ActionRedo))
+    return;
+
   // the viewer update should be blocked in order to avoid the features blinking. For the created
   // feature a results are created, the flush of the created signal caused the viewer redisplay for
   // each created result. After a redisplay signal is flushed. So, the viewer update is blocked
@@ -1048,13 +1098,13 @@ void XGUI_Workshop::onRedo(int theTimes)
 //******************************************************
 void XGUI_Workshop::onWidgetStateChanged(int thePreviousState)
 {
-  ModuleBase_ModelWidget* anActiveWidget = 0;
-  ModuleBase_Operation* anOperation = myOperationMgr->currentOperation();
-  if (anOperation) {
-    ModuleBase_IPropertyPanel* aPanel = anOperation->propertyPanel();
-    if (aPanel)
-      anActiveWidget = aPanel->activeWidget();
-  }
+  ModuleBase_ModelWidget* anActiveWidget = myOperationMgr->activeWidget();
+  //ModuleBase_Operation* anOperation = myOperationMgr->currentOperation();
+  //if (anOperation) {
+  //  ModuleBase_IPropertyPanel* aPanel = anOperation->propertyPanel();
+  //  if (aPanel)
+  //    anActiveWidget = aPanel->activeWidget();
+  //}
   if (anActiveWidget)
     operationMgr()->onValidateOperation();
 
@@ -1183,10 +1233,24 @@ void XGUI_Workshop::updateCommandStatus()
   if (aMgr->hasModuleDocument()) {
     foreach(QAction* aCmd, aCommands) {
       QString aId = aCmd->data().toString();
-      if (aId == "UNDO_CMD")
-        aCmd->setEnabled(myModule->canUndo());
-      else if (aId == "REDO_CMD")
-        aCmd->setEnabled(myModule->canRedo());
+      if (aId == "UNDO_CMD") {
+        bool isActionEnabled = false;
+        // if ultimate is true -> using result of operation only, or using OR combination
+        ModuleBase_ModelWidget* anActiveWidget = myOperationMgr->activeWidget();
+        if (anActiveWidget && anActiveWidget->canProcessAction(ActionUndo, isActionEnabled))
+          aCmd->setEnabled(isActionEnabled);
+        else
+          aCmd->setEnabled(myModule->canUndo());
+      }
+      else if (aId == "REDO_CMD") {
+        bool isActionEnabled = false;
+        // if ultimate is true -> using result of operation only, or using OR combination
+        ModuleBase_ModelWidget* anActiveWidget = myOperationMgr->activeWidget();
+        if (anActiveWidget && anActiveWidget->canProcessAction(ActionRedo, isActionEnabled))
+          aCmd->setEnabled(isActionEnabled);
+        else
+          aCmd->setEnabled(myModule->canRedo());
+      }
       else
         // Enable all commands
         aCmd->setEnabled(true);
@@ -1228,7 +1292,7 @@ QDockWidget* XGUI_Workshop::createObjectBrowser(QWidget* theParent)
   aObjDock->setWindowTitle(tr("Object browser"));
   aObjDock->setStyleSheet(
       "::title { position: relative; padding-left: 5px; text-align: left center }");
-  myObjectBrowser = new XGUI_ObjectsBrowser(aObjDock);
+  myObjectBrowser = new XGUI_ObjectsBrowser(aObjDock, this);
   myObjectBrowser->setXMLReader(myDataModelXMLReader);
   myModule->customizeObjectBrowser(myObjectBrowser);
   aObjDock->setWidget(myObjectBrowser);
@@ -1348,6 +1412,10 @@ void XGUI_Workshop::onContextMenuCommand(const QString& theId, bool isChecked)
     changeColor(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);
@@ -1418,10 +1486,14 @@ void XGUI_Workshop::onContextMenuCommand(const QString& theId, bool isChecked)
         #endif
         aParameters.Append(MyVCallBack);
 
+        MyTCommunicator->RegisterPlugin("TKDFBrowser");
+        MyTCommunicator->RegisterPlugin("TKShapeView");
+        MyTCommunicator->RegisterPlugin("TKVInspector");
         MyTCommunicator->RegisterPlugin("SMBrowser"); // custom plugin to view ModelAPI
+        //MyTCommunicator->RegisterPlugin("TKSMBrowser"); // custom plugin to view ModelAPI
 
         MyTCommunicator->Init(aParameters);
-        MyTCommunicator->Activate("SMBrowser"); // to have button in TInspector
+        MyTCommunicator->Activate("TKSMBrowser"); // to have button in TInspector
         MyTCommunicator->Activate("TKVInspector"); // to have filled callback by model
         MyTCommunicator->Activate("TKDFBrowser");
       }
@@ -1466,7 +1538,7 @@ void XGUI_Workshop::deleteObjects()
   }
 
   QObjectPtrList anObjects = mySelector->selection()->selectedObjects();
-  if (!myOperationMgr->abortAllOperations())
+  if (!abortAllOperations())
     return;
 
   bool hasResult = false;
@@ -1533,7 +1605,7 @@ void addRefsToFeature(const FeaturePtr& theFeature,
 //**************************************************************
 void XGUI_Workshop::cleanHistory()
 {
-  if (!myOperationMgr->abortAllOperations())
+  if (!abortAllOperations())
     return;
 
   QObjectPtrList anObjects = mySelector->selection()->selectedObjects();
@@ -1659,7 +1731,7 @@ void XGUI_Workshop::cleanHistory()
 //**************************************************************
 void XGUI_Workshop::moveObjects()
 {
-  if (!myOperationMgr->abortAllOperations())
+  if (!abortAllOperations())
     return;
 
   SessionPtr aMgr = ModelAPI_Session::get();
@@ -1841,17 +1913,25 @@ bool XGUI_Workshop::canBeShaded(const ObjectPtr& theObject) const
 }
 
 //**************************************************************
-bool XGUI_Workshop::canChangeColor() const
+bool XGUI_Workshop::canChangeProperty(const QString& theActionName) const
 {
-  QObjectPtrList aObjects = mySelector->selection()->selectedObjects();
+  if (theActionName == "COLOR_CMD" ||
+      theActionName == "DEFLECTION_CMD"
+#ifdef USE_TRANSPARENCY
+      || theActionName == "TRANSPARENCY_CMD"
+#endif
+      ) {
+    QObjectPtrList aObjects = mySelector->selection()->selectedObjects();
 
-  std::set<std::string> aTypes;
-  aTypes.insert(ModelAPI_ResultGroup::group());
-  aTypes.insert(ModelAPI_ResultConstruction::group());
-  aTypes.insert(ModelAPI_ResultBody::group());
-  aTypes.insert(ModelAPI_ResultPart::group());
+    std::set<std::string> aTypes;
+    aTypes.insert(ModelAPI_ResultGroup::group());
+    aTypes.insert(ModelAPI_ResultConstruction::group());
+    aTypes.insert(ModelAPI_ResultBody::group());
+    aTypes.insert(ModelAPI_ResultPart::group());
 
-  return hasResults(aObjects, aTypes);
+    return hasResults(aObjects, aTypes);
+  }
+  return false;
 }
 
 void setColor(ResultPtr theResult, const std::vector<int>& theColor)
@@ -1900,7 +1980,7 @@ void XGUI_Workshop::changeColor(const QObjectPtrList& theObjects)
   if (aColor.size() != 3)
     return;
 
-  if (!myOperationMgr->abortAllOperations())
+  if (!abortAllOperations())
   return;
   // 2. show the dialog to change the value
   XGUI_ColorDialog* aDlg = new XGUI_ColorDialog(desktop());
@@ -1938,19 +2018,6 @@ void XGUI_Workshop::changeColor(const QObjectPtrList& theObjects)
 }
 
 //**************************************************************
-bool XGUI_Workshop::canChangeDeflection() const
-{
-  QObjectPtrList aObjects = mySelector->selection()->selectedObjects();
-
-  std::set<std::string> aTypes;
-  aTypes.insert(ModelAPI_ResultGroup::group());
-  aTypes.insert(ModelAPI_ResultConstruction::group());
-  aTypes.insert(ModelAPI_ResultBody::group());
-  aTypes.insert(ModelAPI_ResultPart::group());
-
-  return hasResults(aObjects, aTypes);
-}
-
 void setDeflection(ResultPtr theResult, const double theDeflection)
 {
   if (!theResult.get())
@@ -1961,13 +2028,41 @@ void setDeflection(ResultPtr theResult, const double theDeflection)
     aDeflectionAttr->setValue(theDeflection);
 }
 
+//**************************************************************
+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);
+}
+
+//**************************************************************
+void setTransparency(double theTransparency, const QObjectPtrList& theObjects)
+{
+  foreach(ObjectPtr anObj, theObjects) {
+    ResultPtr aResult = std::dynamic_pointer_cast<ModelAPI_Result>(anObj);
+    if (aResult.get() != NULL) {
+      ResultCompSolidPtr aCompsolidResult =
+        std::dynamic_pointer_cast<ModelAPI_ResultCompSolid>(aResult);
+      if (aCompsolidResult.get() != NULL) { // change property for all sub-solids
+        for(int i = 0; i < aCompsolidResult->numberOfSubs(); i++) {
+          setTransparency(aCompsolidResult->subResult(i), theTransparency);
+        }
+      }
+      setTransparency(aResult, theTransparency);
+    }
+  }
+}
 
 //**************************************************************
 void XGUI_Workshop::changeDeflection(const QObjectPtrList& theObjects)
 {
   AttributeDoublePtr aDoubleAttr;
-  // 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
+  // 1. find the current property of the object. This is a property of AIS presentation
+  // The objects are iterated until a first valid property is found
   double aDeflection = -1;
   foreach(ObjectPtr anObject, theObjects) {
     ResultPtr aResult = std::dynamic_pointer_cast<ModelAPI_Result>(anObject);
@@ -1975,9 +2070,9 @@ void XGUI_Workshop::changeDeflection(const QObjectPtrList& theObjects)
       aDeflection = XGUI_CustomPrs::getResultDeflection(aResult);
     }
     else {
-      // TODO: remove the obtaining a color from the AIS object
+      // TODO: remove the obtaining a property from the AIS object
       // this does not happen never because:
-      // 1. The color can be changed only on results
+      // 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()) {
@@ -1990,7 +2085,7 @@ void XGUI_Workshop::changeDeflection(const QObjectPtrList& theObjects)
   if (aDeflection < 0)
     return;
 
-  if (!myOperationMgr->abortAllOperations())
+  if (!abortAllOperations())
   return;
   // 2. show the dialog to change the value
   XGUI_DeflectionDialog* aDlg = new XGUI_DeflectionDialog(desktop());
@@ -2012,7 +2107,7 @@ void XGUI_Workshop::changeDeflection(const QObjectPtrList& theObjects)
     if (aResult.get() != NULL) {
       ResultCompSolidPtr aCompsolidResult =
         std::dynamic_pointer_cast<ModelAPI_ResultCompSolid>(aResult);
-      if (aCompsolidResult.get() != NULL) { // change colors for all sub-solids
+      if (aCompsolidResult.get() != NULL) { // change property for all sub-solids
         for(int i = 0; i < aCompsolidResult->numberOfSubs(); i++) {
           setDeflection(aCompsolidResult->subResult(i), aDeflection);
         }
@@ -2024,6 +2119,90 @@ void XGUI_Workshop::changeDeflection(const QObjectPtrList& theObjects)
   updateCommandStatus();
 }
 
+//**************************************************************
+void XGUI_Workshop::changeTransparency(const QObjectPtrList& theObjects)
+{
+  AttributeDoublePtr aDoubleAttr;
+  // 1. find the current property of the object. This is a property of AIS presentation
+  // The objects are iterated until a first valid property is found
+  double aCurrentValue = -1;
+  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();
+      }
+    }
+    if (aCurrentValue > 0)
+      break;
+  }
+  if (aCurrentValue < 0)
+    return;
+
+  if (!abortAllOperations())
+  return;
+
+  // 2. show the dialog to change the value
+  XGUI_PropertyDialog* aDlg = new XGUI_PropertyDialog(desktop());
+  aDlg->setWindowTitle("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);
+
+  // 3. abort the previous operation and start a new one
+  SessionPtr aMgr = ModelAPI_Session::get();
+  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);
+
+  aMgr->finishOperation();
+  updateCommandStatus();
+}
+
+//**************************************************************
+void XGUI_Workshop::onTransparencyValueChanged()
+{
+  XGUI_TransparencyWidget* aTransparencyWidget = (XGUI_TransparencyWidget*)sender();
+  if (!aTransparencyWidget || !aTransparencyWidget->isPreviewNeeded())
+    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;
+
+  QObjectPtrList anObjects = mySelector->selection()->selectedObjects();
+  setTransparency(aTransparencyWidget->getValue(), anObjects);
+  Events_Loop::loop()->flush(Events_Loop::eventByName(EVENT_OBJECT_TO_REDISPLAY));
+}
+
 //**************************************************************
 #define SET_DISPLAY_GROUP(aGroupName, aDisplay) \
 for (int i = 0; i < aDoc->size(aGroupName); i++) { \
@@ -2035,6 +2214,15 @@ void XGUI_Workshop::showObjects(const QObjectPtrList& theList, bool isVisible)
     aObj->setDisplayed(isVisible);
   }
   Events_Loop::loop()->flush(Events_Loop::eventByName(EVENT_OBJECT_TO_REDISPLAY));
+#ifndef WIN32
+  // Necessary for update icons in ObjectBrowser on Linux
+  QModelIndexList aIndexes = mySelector->selection()->selectedIndexes();
+  foreach (QModelIndex aIdx, aIndexes) {
+    if (aIdx.column() == 0) {
+      myObjectBrowser->treeView()->update(aIdx);
+    }
+  }
+#endif
 }
 
 //**************************************************************
@@ -2046,6 +2234,9 @@ void XGUI_Workshop::showOnlyObjects(const QObjectPtrList& theList)
     if (module()->canEraseObject(aObj))
       aObj->setDisplayed(false);
   }
+  //Do not use eraseAll if you didn't send Redisplay event:
+  //all objects are erased from viewer, but considered as displayed in displayer
+  // Problem in bug 2218
   Events_Loop::loop()->flush(Events_Loop::eventByName(EVENT_OBJECT_TO_REDISPLAY));
 #ifdef HAVE_SALOME
     //issue #2159 Hide all incomplete behavior
@@ -2057,6 +2248,15 @@ void XGUI_Workshop::showOnlyObjects(const QObjectPtrList& theList)
     aObj->setDisplayed(true);
   }
   Events_Loop::loop()->flush(Events_Loop::eventByName(EVENT_OBJECT_TO_REDISPLAY));
+#ifndef WIN32
+  // Necessary for update icons in ObjectBrowser on Linux
+  QModelIndexList aIndexes = mySelector->selection()->selectedIndexes();
+  foreach (QModelIndex aIdx, aIndexes) {
+    if (aIdx.column() == 0) {
+      myObjectBrowser->treeView()->update(aIdx);
+    }
+  }
+#endif
 }
 
 
@@ -2116,6 +2316,9 @@ void XGUI_Workshop::closeDocument()
   objectBrowser()->clearContent();
 
   module()->closeDocument();
+  // we need to clear viewer (with created filters) to do not have problems in 2nd SALOME study
+  module()->clearViewer();
+
 
   // data model need not process the document's signals about objects modifications as
   // the document is closed