X-Git-Url: http://git.salome-platform.org/gitweb/?a=blobdiff_plain;f=src%2FHYDROGUI%2FHYDROGUI_CalculationOp.cxx;h=f6bd84498bef201b439aa22cf2c74f8d8cbe49dd;hb=4e1b53167581be7e084a3d71c075507bc6699c06;hp=25aac2717abbc34b2da26389c67bd370c649fda6;hpb=2e1739ce97c68eccf2cd6599c4440e0cb935abbc;p=modules%2Fhydro.git

diff --git a/src/HYDROGUI/HYDROGUI_CalculationOp.cxx b/src/HYDROGUI/HYDROGUI_CalculationOp.cxx
index 25aac271..f6bd8449 100644
--- a/src/HYDROGUI/HYDROGUI_CalculationOp.cxx
+++ b/src/HYDROGUI/HYDROGUI_CalculationOp.cxx
@@ -27,61 +27,476 @@
 #include "HYDROGUI_Module.h"
 #include "HYDROGUI_Tool.h"
 #include "HYDROGUI_UpdateFlags.h"
+#include "HYDROGUI_Zone.h"
+#include "HYDROGUI_Region.h"
+
+#include <HYDROData_PolylineXY.h>
+#include <HYDROData_ShapesGroup.h>
+#include <HYDROData_Iterator.h>
+#include <HYDROData_Object.h>
+#include <HYDROData_Tool.h>
+
+#include <OCCViewer_ViewManager.h>
+#include <OCCViewer_ViewModel.h>
+#include <OCCViewer_ViewWindow.h>
 
 #include <LightApp_Application.h>
 #include <LightApp_UpdateFlags.h>
+#include <LightApp_SelectionMgr.h>
+#include <LightApp_DataOwner.h>
+
+#include <SUIT_MessageBox.h>
+#include <SUIT_Desktop.h>
+#include <SUIT_DataBrowser.h>
+
+#include <QApplication>
+#include <QKeySequence>
+#include <QShortcut>
 
 HYDROGUI_CalculationOp::HYDROGUI_CalculationOp( HYDROGUI_Module* theModule, bool theIsEdit )
 : HYDROGUI_Operation( theModule ),
-  myIsEdit( theIsEdit )
+  myIsEdit( theIsEdit ),
+  myActiveViewManager( NULL ),
+  myPreviewViewManager( NULL )
 {
   setName( myIsEdit ? tr( "EDIT_CALCULATION" ) : tr( "CREATE_CALCULATION" ) );
 }
 
 HYDROGUI_CalculationOp::~HYDROGUI_CalculationOp()
 {
+  closePreview();
 }
 
 void HYDROGUI_CalculationOp::startOperation()
 {
   HYDROGUI_Operation::startOperation();
+  
+  // Begin transaction
+  startDocOperation();
 
   HYDROGUI_CalculationDlg* aPanel = 
     ::qobject_cast<HYDROGUI_CalculationDlg*>( inputPanel() );
   if ( !aPanel )
     return;
 
+  SUIT_DataBrowser* aOb = ((LightApp_Application*)module()->application())->objectBrowser();
+  QList<QShortcut*> aShortcuts = aOb->findChildren<QShortcut*>();
+  QShortcut* aShortcut;
+  foreach( aShortcut, aShortcuts )
+  {
+    if ( aShortcut->key() == 
+      QKeySequence(((LightApp_Application*)module()->application())->objectBrowser()->shortcutKey( 
+      SUIT_DataBrowser::RenameShortcut ) ) )
+    {
+      aShortcut->setEnabled( false );
+    }
+  }
+
+
   aPanel->reset();
+  QStringList aList;
+  QStringList anEntryList;
+  HYDROData_SequenceOfObjects aSeq = HYDROGUI_Tool::GetGeometryObjects( module() );
+  getNamesAndEntries( aSeq, aList, anEntryList );
+  aPanel->setAllGeomObjects( aList, anEntryList );
 
-  QString anObjectName = HYDROGUI_Tool::GenerateObjectName( module(), "Case" );
+  // Get all polylines
+  aList.clear();
+  anEntryList.clear();
+  HYDROData_Iterator anIter( doc(), KIND_POLYLINEXY );
+  Handle(HYDROData_PolylineXY) aPolylineObj;
+  QString aPolylineName;
+  for ( ; anIter.More(); anIter.Next() )
+  {
+    aPolylineObj = Handle(HYDROData_PolylineXY)::DownCast( anIter.Current() );
+
+    if ( !aPolylineObj.IsNull() && aPolylineObj->IsClosed() )
+    { 
+      // Check the polyline shape
+      TopoDS_Shape aPolylineShape = aPolylineObj->GetShape();
+      if ( !aPolylineShape.IsNull() && aPolylineShape.ShapeType() == TopAbs_WIRE ) {
+        aPolylineName = aPolylineObj->GetName();
+        if ( !aPolylineName.isEmpty() )
+        {
+          aList.append( aPolylineName );
+          anEntryList.append( HYDROGUI_DataObject::dataObjectEntry( aPolylineObj ) );
+        }
+      }
+    }
+  }
+  aPanel->setPolylineNames( aList, anEntryList );
+
+  QString anObjectName = HYDROGUI_Tool::GenerateObjectName( module(), tr( "DEFAULT_CALCULATION_CASE_NAME" ) );
 
   myEditedObject.Nullify();
   if ( myIsEdit )
   {
-    myEditedObject = Handle(HYDROData_Calculation)::DownCast( HYDROGUI_Tool::GetSelectedObject( module() ) );
+    myEditedObject = Handle(HYDROData_CalculationCase)::DownCast( HYDROGUI_Tool::GetSelectedObject( module() ) );
     if ( !myEditedObject.IsNull() )
+    {
       anObjectName = myEditedObject->GetName();
+      aPolylineObj = myEditedObject->GetBoundaryPolyline();
+      if ( aPolylineObj.IsNull() )
+      {
+        aPanel->setBoundary( QString() );
+      }
+      else
+      {
+        aPolylineName = aPolylineObj->GetName();
+        aPanel->setBoundary( aPolylineName );
+      }
+
+      aSeq = myEditedObject->GetGeometryObjects();
+      getNamesAndEntries( aSeq, aList, anEntryList );
+      aPanel->includeGeomObjects( aList );
+    }
+  }
+  else
+  {
+    myEditedObject =
+      Handle(HYDROData_CalculationCase)::DownCast( doc()->CreateObject( KIND_CALCULATION ) );
+    myEditedObject->SetName(anObjectName);
   }
 
   aPanel->setObjectName( anObjectName );
+  aPanel->setEditedObject( myEditedObject );
+
+  createPreview();
+}
+
+void HYDROGUI_CalculationOp::getNamesAndEntries( const HYDROData_SequenceOfObjects& theSeq, 
+                                                QStringList& theNames, QStringList& theEntries ) const
+{
+ 
+  theNames.clear();
+  theEntries.clear();
+  HYDROData_SequenceOfObjects::Iterator anIter( theSeq );
+  for ( ; anIter.More(); anIter.Next() )
+  {
+    Handle(HYDROData_Entity) anEntity = anIter.Value();
+    //if ( !HYDROData_Tool::IsGeometryObject( anEntity ) )
+    //  continue;
+
+    theNames.append( anEntity->GetName() );
+    theEntries.append( HYDROGUI_DataObject::dataObjectEntry( anEntity ) );
+  }
 }
 
 void HYDROGUI_CalculationOp::abortOperation()
 {
+  closePreview();
+  // Abort transaction
+  abortDocOperation();
   HYDROGUI_Operation::abortOperation();
+  module()->getApp()->updateObjectBrowser();
 }
 
 void HYDROGUI_CalculationOp::commitOperation()
 {
+  closePreview();
+  // Commit transaction
+  commitDocOperation();
   HYDROGUI_Operation::commitOperation();
 }
 
 HYDROGUI_InputPanel* HYDROGUI_CalculationOp::createInputPanel() const
 {
   HYDROGUI_CalculationDlg* aPanel = new HYDROGUI_CalculationDlg( module(), getName() );
+
+  // Connect signals and slots
+  connect( aPanel, SIGNAL( addObjects() ), SLOT( onAddObjects() ) );
+  connect( aPanel, SIGNAL( removeObjects() ), SLOT( onRemoveObjects() ) );
+  connect( aPanel, SIGNAL( addGroups() ), SLOT( onAddGroups() ) );
+  connect( aPanel, SIGNAL( removeGroups() ), SLOT( onRemoveGroups() ) );
+  connect( aPanel, SIGNAL( Next( const int ) ), SLOT( onNext( const int ) ) );
+  connect( aPanel, SIGNAL( Back( const int ) ), SLOT( onHideZones() ) );
+  //connect( aPanel, SIGNAL( clicked( SUIT_DataObject* ) ), SLOT( onSelected( SUIT_DataObject* ) ) );
+  connect( aPanel, SIGNAL( setMergeType( int, QString& ) ), SLOT( onSetMergeType( int, QString& ) ) );
+  connect( aPanel, SIGNAL( moveZones( SUIT_DataObject*, const QList<SUIT_DataObject*>& ) ),
+    SLOT( onMoveZones( SUIT_DataObject*, const QList<SUIT_DataObject*>& ) ) );
+  connect( aPanel, SIGNAL( createRegion( const QList<SUIT_DataObject*>& ) ),
+    SLOT( onCreateRegion( const QList<SUIT_DataObject*>& ) ) );
+  connect( aPanel, SIGNAL( clickedInZonesBrowser( SUIT_DataObject* ) ),
+    SLOT( onClickedInZonesBrowser( SUIT_DataObject* ) ) );
+  connect( aPanel, SIGNAL( objectsSelected() ), 
+           SLOT( onObjectsSelected() ) );
+  connect( aPanel, SIGNAL( boundarySelected( const QString & ) ), 
+    SLOT( onBoundarySelected( const QString & ) ) );
+
   return aPanel;
 }
 
+void HYDROGUI_CalculationOp::onBoundarySelected ( const QString & theObjName )
+{
+  bool anIsToUpdateViewer = false;
+
+  // Remove the old boundary from the operation viewer
+  Handle(HYDROData_PolylineXY) aPrevPolyline = 
+    myEditedObject->GetBoundaryPolyline();
+  if ( !aPrevPolyline.IsNull() )
+  {
+    module()->removeObjectShape( HYDROGUI_Module::VMR_PreviewCaseZones, aPrevPolyline );
+    anIsToUpdateViewer = true;
+  }
+
+  // Set the selected boundary polyline to the calculation case
+  Handle(HYDROData_PolylineXY) aNewPolyline = Handle(HYDROData_PolylineXY)::DownCast(
+    HYDROGUI_Tool::FindObjectByName( module(), theObjName, KIND_POLYLINEXY ) );
+  myEditedObject->SetBoundaryPolyline( aNewPolyline );
+
+  if ( myPreviewViewManager )
+  {
+    OCCViewer_Viewer* aViewer = myPreviewViewManager->getOCCViewer();
+    if ( aViewer )
+    {
+      if ( !aNewPolyline.IsNull() )
+      {
+        Handle(AIS_InteractiveContext) aCtx = aViewer->getAISContext();
+        if ( !aCtx.IsNull() )
+        {
+          showObject( aNewPolyline, aCtx );
+          anIsToUpdateViewer = true;
+        }
+      }
+
+      if ( anIsToUpdateViewer )
+        aViewer->update();
+    }
+  }
+}
+
+void HYDROGUI_CalculationOp::onObjectsSelected()
+{
+  HYDROGUI_CalculationDlg* aPanel = 
+    ::qobject_cast<HYDROGUI_CalculationDlg*>( inputPanel() );
+
+  QStringList aSelectedObjs = aPanel->getSelectedGeomObjects();
+  QMap<QString, bool> aSelectedObjsMap;
+  foreach( QString aName, aSelectedObjs )
+    aSelectedObjsMap[aName] = true;
+
+
+  // Select the appropriate geometry object shape in the viewer
+  selectionMgr()->clearSelected();
+
+  // Unhighlight all objects except selected
+  HYDROGUI_Shape* aShape = 0, *aLastShape = 0;
+  Handle(HYDROData_Entity) anEntity;
+  HYDROData_SequenceOfObjects aSeq = myEditedObject->GetGeometryObjects();
+  HYDROData_SequenceOfObjects::Iterator anIter( aSeq );
+  bool isSelected;
+  QString aName;
+  for ( ; anIter.More(); anIter.Next() )
+  {
+    anEntity = anIter.Value();
+    if ( !anEntity.IsNull() )
+    {
+      aShape = module()->getObjectShape( HYDROGUI_Module::VMR_PreviewCaseZones, anEntity );
+      if ( aShape )
+      {
+        aName = anEntity->GetName();
+        isSelected = aSelectedObjsMap.contains( aName );
+        aShape->highlight( isSelected, false );
+        aShape->update( false );
+        aLastShape = aShape;
+      }
+    }
+  }
+  if( aLastShape )
+    aLastShape->update( true );
+}
+
+void HYDROGUI_CalculationOp::onClickedInZonesBrowser( SUIT_DataObject* theItem )
+{
+  HYDROGUI_Region* aRegionItem = dynamic_cast<HYDROGUI_Region*>(theItem);
+  HYDROGUI_Zone* aZoneItem;
+  selectionMgr()->clearSelected();
+  if ( aRegionItem )
+  {
+    // Select a region in preview
+    SUIT_DataOwnerPtrList aList( true );
+    DataObjectList aZones = aRegionItem->children();
+    for ( int i = 0; i < aZones.length(); i++ )
+    {
+      aZoneItem = dynamic_cast<HYDROGUI_Zone*>(aZones.at(i));
+      if ( aZoneItem )
+      {
+        aList.append( SUIT_DataOwnerPtr( new LightApp_DataOwner( aZoneItem->entry() ) ) );
+      }
+    }
+    selectionMgr()->setSelected( aList );
+  }
+  else
+  {
+    // select a single zone
+    aZoneItem = dynamic_cast<HYDROGUI_Zone*>(theItem);
+    if ( aZoneItem )
+    {
+      SUIT_DataOwnerPtrList aList( true );
+      aList.append( SUIT_DataOwnerPtr( new LightApp_DataOwner( aZoneItem->entry() ) ) );
+      selectionMgr()->setSelected( aList );
+    }
+  }
+}
+
+void HYDROGUI_CalculationOp::onMoveZones( SUIT_DataObject* theRegionItem, const QList<SUIT_DataObject*>& theZonesList )
+{
+  HYDROGUI_Region* aRegion = dynamic_cast<HYDROGUI_Region*>(theRegionItem);
+  if ( aRegion )
+  {
+    QList<HYDROGUI_Zone*> aZonesList;
+    HYDROGUI_Zone* aZone;
+    // Get a list of dropped zones
+    for ( int i = 0; i < theZonesList.length(); i++ )
+    {
+      aZone = dynamic_cast<HYDROGUI_Zone*>( theZonesList.at( i ) );
+      if ( aZone )
+      {
+        aZonesList.append( aZone );
+      }
+    }
+    if ( aZonesList.length() > 0 )
+    {
+      aRegion->addZones( aZonesList );
+      HYDROGUI_CalculationDlg* aPanel = 
+        ::qobject_cast<HYDROGUI_CalculationDlg*>( inputPanel() );
+      if ( aPanel )
+      {
+        aPanel->refreshZonesBrowser();
+      }
+      createPreview();
+    }
+  }
+}
+
+void HYDROGUI_CalculationOp::onCreateRegion( const QList<SUIT_DataObject*>& theZonesList )
+{
+  QList<HYDROGUI_Zone*> aZonesList;
+  HYDROGUI_Zone* aZone;
+  // Get a list of dropped zones
+  for ( int i = 0; i < theZonesList.length(); i++ )
+  {
+    aZone = dynamic_cast<HYDROGUI_Zone*>( theZonesList.at( i ) );
+    if ( aZone )
+    {
+      aZonesList.append( aZone );
+    }
+  }
+  if ( aZonesList.length() > 0 )
+  {
+    module()->getDataModel()->createNewRegion( myEditedObject, aZonesList );
+    HYDROGUI_CalculationDlg* aPanel = 
+      ::qobject_cast<HYDROGUI_CalculationDlg*>( inputPanel() );
+    if ( aPanel )
+    {
+      aPanel->refreshZonesBrowser();
+    }
+    createPreview();
+  }
+}
+
+void HYDROGUI_CalculationOp::onSetMergeType( int theMergeType, QString& theAltitudeName )
+{
+  HYDROGUI_CalculationDlg* aPanel = 
+    ::qobject_cast<HYDROGUI_CalculationDlg*>( inputPanel() );
+  if ( aPanel )
+  {
+    HYDROGUI_Zone* aZone = aPanel->getCurrentZone();
+    if ( aZone )
+    {
+      aZone->setMergeType( theMergeType, theAltitudeName );
+      HYDROGUI_Shape* aShape = module()->getObjectShape( HYDROGUI_Module::VMR_PreviewCaseZones, aZone->modelObject() );
+      if ( aShape )
+      {
+        aShape->update();
+      }
+    }
+    aPanel->refreshZonesBrowser();
+  }
+}
+
+void HYDROGUI_CalculationOp::onAddObjects()
+{
+  HYDROGUI_CalculationDlg* aPanel = 
+    ::qobject_cast<HYDROGUI_CalculationDlg*>( inputPanel() );
+  if ( !aPanel )
+    return;
+
+  // Add geometry objects selected in the module browser to the calculation case
+  QStringList aSelectedList = aPanel->getSelectedAvailableGeomObjects();
+  if ( aSelectedList.isEmpty() || !confirmRegionsChange() )
+    return;
+
+  QStringList anAddedList;
+  for (int i = 0; i < aSelectedList.length(); i++)
+  {
+    Handle(HYDROData_Object) anObject = Handle(HYDROData_Object)::DownCast( 
+      HYDROGUI_Tool::FindObjectByName( module(), aSelectedList.at( i ) ) );
+    if ( anObject.IsNull() )
+      continue;
+
+    if ( myEditedObject->AddGeometryObject( anObject ) )
+      anAddedList.append( anObject->GetName() );
+  }
+
+  if ( !anAddedList.isEmpty() )
+  {
+    aPanel->includeGeomObjects( anAddedList );
+    createPreview();
+  }
+}
+
+void HYDROGUI_CalculationOp::onRemoveObjects()
+{
+  // Remove selected objects from the calculation case
+  HYDROGUI_CalculationDlg* aPanel = 
+    ::qobject_cast<HYDROGUI_CalculationDlg*>( inputPanel() );
+  if ( !aPanel )
+    return;
+
+  QStringList aSelectedList = aPanel->getSelectedGeomObjects();
+  if ( aSelectedList.isEmpty() || !confirmRegionsChange() )
+    return;
+
+  for (int i = 0; i < aSelectedList.length(); i++)
+  {
+    Handle(HYDROData_Object) anObject = Handle(HYDROData_Object)::DownCast( 
+      HYDROGUI_Tool::FindObjectByName( module(), aSelectedList.at(i) ) );
+    if ( anObject.IsNull() )
+      continue;
+
+    module()->removeObjectShape( HYDROGUI_Module::VMR_PreviewCaseZones, anObject );
+    myEditedObject->RemoveGeometryObject( anObject );
+  }
+
+  aPanel->excludeGeomObjects( aSelectedList );
+}
+
+bool HYDROGUI_CalculationOp::confirmRegionsChange() const
+{
+  // Check if the case is already modified or not
+  bool isConfirmed = myEditedObject->IsMustBeUpdated();
+  if ( !isConfirmed )
+  {
+    // If not modified check if the case has already defined regions with zones
+    HYDROData_SequenceOfObjects aSeq = myEditedObject->GetRegions();
+    if ( aSeq.Length() > 0 )
+    {
+      // If there are already defined zones then ask a user to confirm zones recalculation
+      isConfirmed = ( SUIT_MessageBox::question( module()->getApp()->desktop(),
+                               tr( "REGIONS_CHANGED" ),
+                               tr( "CONFIRM_SPLITTING_ZONES_RECALCULATION" ),
+                               QMessageBox::Yes | QMessageBox::No,
+                               QMessageBox::No ) == QMessageBox::Yes );
+    }
+    else
+    {
+      isConfirmed = true; // No regions - no zones - nothing to recalculate
+    }
+  }
+  return isConfirmed;
+}
+
 bool HYDROGUI_CalculationOp::processApply( int&     theUpdateFlags,
                                            QString& theErrorMsg )
 {
@@ -90,31 +505,365 @@ bool HYDROGUI_CalculationOp::processApply( int&     theUpdateFlags,
   if ( !aPanel )
     return false;
 
-  QString anObjectName = aPanel->getObjectName().simplified();
-  if ( anObjectName.isEmpty() )
+  theUpdateFlags = UF_Model | UF_OCCViewer | UF_OCC_Forced | UF_VTKViewer | UF_VTK_Forced | UF_VTK_Init;
+
+  return true;
+}
+
+void HYDROGUI_CalculationOp::onApply()
+{
+  QApplication::setOverrideCursor( Qt::WaitCursor );
+
+  int anUpdateFlags = 0;
+  QString anErrorMsg;
+
+  bool aResult = false;
+  
+  try
   {
-    theErrorMsg = tr( "INCORRECT_OBJECT_NAME" );
-    return false;
+    aResult = processApply( anUpdateFlags, anErrorMsg );
+  }
+  catch ( Standard_Failure )
+  {
+    Handle(Standard_Failure) aFailure = Standard_Failure::Caught();
+    anErrorMsg = aFailure->GetMessageString();
+    aResult = false;
   }
+  catch ( ... )
+  {
+    aResult = false;
+  }
+  
+  QApplication::restoreOverrideCursor();
 
-  // check that there are no other objects with the same name in the document
-  Handle(HYDROData_Object) anObject = HYDROGUI_Tool::FindObjectByName( module(), anObjectName );
-  if ( !anObject.IsNull() )
+  if ( aResult )
   {
-    theErrorMsg = tr( "OBJECT_EXISTS_IN_DOCUMENT" ).arg( anObjectName );
-    return false;
+    module()->update( anUpdateFlags );
+    commit();
   }
+  else
+  {
+    abort();
+    QString aMsg = tr( "INPUT_VALID_DATA" );
+    if( !anErrorMsg.isEmpty() )
+      aMsg.prepend( anErrorMsg + "\n" );
+    SUIT_MessageBox::critical( module()->getApp()->desktop(),
+                               tr( "INSUFFICIENT_INPUT_DATA" ),
+                               aMsg ); 
+  }
+}
 
-  Handle(HYDROData_Calculation) aCalculObj = myIsEdit ? myEditedObject :
-    Handle(HYDROData_Calculation)::DownCast( doc()->CreateObject( KIND_CALCULATION ) );
-  if ( aCalculObj.IsNull() )
-    return false;
+void HYDROGUI_CalculationOp::onNext( const int theIndex )
+{
+  if( theIndex==1 )
+  {
+    setAvailableGroups();
+  }
+  else if( theIndex==2 )
+  {
+    HYDROGUI_CalculationDlg* aPanel = 
+      ::qobject_cast<HYDROGUI_CalculationDlg*>( inputPanel() );
+    if ( !aPanel )
+      return;
 
-  aCalculObj->SetName( anObjectName );
+    QApplication::setOverrideCursor( Qt::WaitCursor );
+  
+    QString aNewCaseName = aPanel->getObjectName();
+    QString anOldCaseName = myEditedObject->GetName();
+  
+    bool anIsToUpdateOb = myIsEdit && anOldCaseName != aNewCaseName;
+  
+    // At first we must to update the case name because of 
+    // automatic names generation for regions and zones
+    myEditedObject->SetName( aNewCaseName );
+  
+    if ( myEditedObject->IsMustBeUpdated() )
+    {
+      myShowZones = true;
+      myEditedObject->Update();
 
-  theUpdateFlags = UF_Model;
+      //aPanel->setEditedObject( myEditedObject );
+      aPanel->refreshZonesBrowser();
 
-  return true;
+      createPreview();
+    }
+    else
+    {
+      setZonesVisible( true );
+    }
+
+    if ( anIsToUpdateOb )
+      module()->getApp()->updateObjectBrowser( false );
+
+    QApplication::restoreOverrideCursor();
+  }
+}
+
+void HYDROGUI_CalculationOp::onHideZones()
+{
+  setZonesVisible( false );
+}
+
+void HYDROGUI_CalculationOp::setZonesVisible( bool theIsVisible )
+{
+  myShowZones = theIsVisible;
+  HYDROData_SequenceOfObjects aRegions = myEditedObject->GetRegions();
+  HYDROData_SequenceOfObjects::Iterator aRegionsIter( aRegions );
+  HYDROData_SequenceOfObjects aZones;
+  Handle(HYDROData_Region) aRegion;
+  if ( myPreviewViewManager ) 
+  {
+    if ( OCCViewer_Viewer* aViewer = myPreviewViewManager->getOCCViewer() )
+    {
+      Handle(AIS_InteractiveContext) aCtx = aViewer->getAISContext();
+      if ( !aCtx.IsNull() )
+      {
+        for ( ; aRegionsIter.More(); aRegionsIter.Next() )
+        {
+          aRegion = Handle(HYDROData_Region)::DownCast( aRegionsIter.Value() );
+          if ( !aRegion.IsNull() )
+          {
+            aZones = aRegion->GetZones();
+            HYDROData_SequenceOfObjects::Iterator aZonesIter( aZones );
+            for ( ; aZonesIter.More(); aZonesIter.Next() )
+            {
+              if ( theIsVisible )
+              {
+                showObject( aZonesIter.Value(), aCtx );
+              }
+              else
+              {
+                module()->removeObjectShape( HYDROGUI_Module::VMR_PreviewCaseZones, aZonesIter.Value() );
+              }
+            }
+          }
+        }
+      }
+
+      aViewer->update();
+    }
+  }
+}
+
+void HYDROGUI_CalculationOp::createPreview()
+{
+  LightApp_Application* anApp = module()->getApp();
+  HYDROData_SequenceOfObjects aSeq = myEditedObject->GetGeometryObjects();
+  Handle(HYDROData_Entity) anEntity;
+
+  if ( myShowZones )
+  {
+    // Gather zones for displaying
+    HYDROData_SequenceOfObjects aRegions = myEditedObject->GetRegions();
+    HYDROData_SequenceOfObjects::Iterator aRegionsIter( aRegions );
+    HYDROData_SequenceOfObjects aZones;
+    Handle(HYDROData_Region) aRegion;
+    for ( ; aRegionsIter.More(); aRegionsIter.Next() )
+    {
+      anEntity = aRegionsIter.Value();
+      if ( !anEntity.IsNull() )
+      {
+        aRegion = Handle(HYDROData_Region)::DownCast( anEntity );
+        if ( !aRegion.IsNull() )
+        {
+          aZones = aRegion->GetZones();
+          aSeq.Append( aZones );
+        }
+      }
+    }
+  }
+
+  // Get a boundary polyline if any
+  aSeq.Append( myEditedObject->GetBoundaryPolyline() );
+
+  module()->removeViewShapes( HYDROGUI_Module::VMR_PreviewCaseZones );
+
+  if ( !myActiveViewManager )
+  {
+    if ( aSeq.IsEmpty() )
+      return;
+
+    myActiveViewManager = anApp->activeViewManager();
+  }
+
+  if ( !myPreviewViewManager )
+  {
+    myPreviewViewManager = ::qobject_cast<OCCViewer_ViewManager*>( 
+      anApp->createViewManager( OCCViewer_Viewer::Type() ) );
+    if ( myPreviewViewManager )
+    {
+      connect( myPreviewViewManager, SIGNAL( lastViewClosed( SUIT_ViewManager* ) ),
+               this, SLOT( onLastViewClosed( SUIT_ViewManager* ) ) );
+
+      module()->setViewManagerRole( myPreviewViewManager, HYDROGUI_Module::VMR_PreviewCaseZones );
+      myPreviewViewManager->setTitle( tr( "PREVIEW_CASE_ZONES" ) );
+    }
+  }
+
+  if ( !myPreviewViewManager )
+    return;
+
+  if ( OCCViewer_Viewer* aViewer = myPreviewViewManager->getOCCViewer() )
+  {
+    Handle(AIS_InteractiveContext) aCtx = aViewer->getAISContext();
+    if ( !aCtx.IsNull() )
+    {
+      HYDROData_SequenceOfObjects::Iterator anIter( aSeq );
+      for ( ; anIter.More(); anIter.Next() )
+      {
+        showObject( anIter.Value(), aCtx );
+      }
+
+      //Process the draw events for viewer
+      QApplication::processEvents( QEventLoop::ExcludeUserInputEvents );
+      if ( OCCViewer_ViewWindow* vw = (OCCViewer_ViewWindow*)myPreviewViewManager->getActiveView() )
+        vw->onTopView();
+    }
+
+    aViewer->update();
+  }
+}
+
+void HYDROGUI_CalculationOp::showObject( Handle(HYDROData_Entity) theEntity, Handle(AIS_InteractiveContext) theCtx )
+{
+  if ( !theEntity.IsNull() )
+  {
+    HYDROGUI_Shape* aShape = module()->getObjectShape( HYDROGUI_Module::VMR_PreviewCaseZones, theEntity );
+    if ( !aShape )
+    {
+      aShape = new HYDROGUI_Shape( theCtx, theEntity );
+      module()->setObjectShape( HYDROGUI_Module::VMR_PreviewCaseZones, theEntity, aShape );
+    }
+    aShape->update( false );
+  }
 }
 
+void HYDROGUI_CalculationOp::onLastViewClosed( SUIT_ViewManager* theViewManager )
+{
+  closePreview();
+}
+
+void HYDROGUI_CalculationOp::closePreview()
+{
+  SUIT_DataBrowser* aOb = ((LightApp_Application*)module()->application())->objectBrowser();
+  QList<QShortcut*> aShortcuts = aOb->findChildren<QShortcut*>();
+  QShortcut* aShortcut;
+  foreach( aShortcut, aShortcuts )
+  {
+    if ( aShortcut->key() == 
+      QKeySequence( ((LightApp_Application*)module()->application())->objectBrowser()->shortcutKey( 
+      SUIT_DataBrowser::RenameShortcut ) ) )
+    {
+      aShortcut->setEnabled( true );
+    }
+  }
+
+
+  if( myPreviewViewManager )
+  {
+    disconnect( myPreviewViewManager, SIGNAL( lastViewClosed( SUIT_ViewManager* ) ),
+                this, SLOT( onLastViewClosed( SUIT_ViewManager* ) ) );
+
+    module()->getApp()->removeViewManager( myPreviewViewManager ); // myPreviewViewManager is deleted here
+    myPreviewViewManager = NULL;
+  }
+
+  if( myActiveViewManager )
+  {
+    HYDROGUI_Tool::SetActiveViewManager( module(), myActiveViewManager );
+    myActiveViewManager = NULL;
+  }
+}
+
+void HYDROGUI_CalculationOp::setAvailableGroups()
+{
+  HYDROGUI_CalculationDlg* aPanel = 
+      ::qobject_cast<HYDROGUI_CalculationDlg*>( inputPanel() );
+
+  HYDROData_SequenceOfObjects aSeq = myEditedObject->GetGeometryGroups();
+  QStringList aList, anEntryList;
+  getNamesAndEntries( aSeq, aList, anEntryList );
+
+  QStringList aGroupsNames;
+
+  HYDROData_SequenceOfObjects anObjs = myEditedObject->GetGeometryObjects();
+  for( int anIndex = 1, aLength = anObjs.Length(); anIndex <= aLength; anIndex++ )
+  {
+    Handle_HYDROData_Object anObj = Handle_HYDROData_Object::DownCast( anObjs.Value( anIndex ) );
+    HYDROData_SequenceOfObjects aGroups = anObj->GetGroups();
+    for( int aGIndex = 1, aGLength = aGroups.Length(); aGIndex <= aGLength; aGIndex++ )
+    {
+      Handle_HYDROData_ShapesGroup aGroup = Handle_HYDROData_ShapesGroup::DownCast( aGroups.Value( aGIndex ) );
+      aGroupsNames.append( aGroup->GetName() );
+    }
+  }
+  if( myEditedObject->IsMustBeUpdated() ) {
+    for( int anIndex = 1, aLength = aSeq.Length(); anIndex <= aLength; anIndex++ ) {
+      Handle(HYDROData_ShapesGroup) aGeomGroup =
+        Handle(HYDROData_ShapesGroup)::DownCast( aSeq.Value( anIndex ) );
+      if ( !aGeomGroup.IsNull() && !aGroupsNames.contains( aGeomGroup->GetName() ) ) {
+        myEditedObject->RemoveGeometryGroup( aGeomGroup );
+      }
+    }
+  }
+
+  aPanel->setAvailableGroups( aGroupsNames );
+  aPanel->includeGroups( aList );
+
+  bool isUpdated = myEditedObject->IsMustBeUpdated();
+}
+
+void HYDROGUI_CalculationOp::onAddGroups()
+{
+  HYDROGUI_CalculationDlg* aPanel = 
+    ::qobject_cast<HYDROGUI_CalculationDlg*>( inputPanel() );
+  if ( !aPanel )
+    return;
+
+  // Add geometry objects selected in the module browser to the calculation case
+  QStringList aSelectedList = aPanel->getSelectedAvailableGroups();
+  if ( aSelectedList.isEmpty() || !confirmRegionsChange() )
+    return;
+
+  QStringList anAddedList;
+  for (int i = 0; i < aSelectedList.length(); i++)
+  {
+    Handle(HYDROData_ShapesGroup) aGroup = Handle(HYDROData_ShapesGroup)::DownCast( 
+      HYDROGUI_Tool::FindObjectByName( module(), aSelectedList.at( i ) ) );
+    if ( aGroup.IsNull() )
+      continue;
+
+    if ( myEditedObject->AddGeometryGroup( aGroup ) )
+      anAddedList.append( aGroup->GetName() );
+  }
+
+  if ( !anAddedList.isEmpty() )
+  {
+    aPanel->includeGroups( anAddedList );
+  }
+}
+
+void HYDROGUI_CalculationOp::onRemoveGroups()
+{
+  // Remove selected objects from the calculation case
+  HYDROGUI_CalculationDlg* aPanel = 
+    ::qobject_cast<HYDROGUI_CalculationDlg*>( inputPanel() );
+  if ( !aPanel )
+    return;
 
+  QStringList aSelectedList = aPanel->getSelectedGroups();
+  if ( aSelectedList.isEmpty() || !confirmRegionsChange() )
+    return;
+
+  for (int i = 0; i < aSelectedList.length(); i++)
+  {
+    Handle(HYDROData_ShapesGroup) aGroup = Handle(HYDROData_ShapesGroup)::DownCast( 
+      HYDROGUI_Tool::FindObjectByName( module(), aSelectedList.at(i) ) );
+    if ( aGroup.IsNull() )
+      continue;
+
+    myEditedObject->RemoveGeometryGroup( aGroup );
+  }
+
+  aPanel->excludeGroups( aSelectedList );
+}