/**
*  SMESH SMESHGUI
*
*  Copyright (C) 2005  CEA/DEN, EDF R&D
*
*
*
*  File   : SMESHGUI_MeshOp.h
*  Author : Sergey LITONIN
*  Module : SMESHGUI
*/

#include "SMESHGUI_MeshOp.h"
#include "SMESHGUI_MeshDlg.h"
#include "SMESH_TypeFilter.hxx"
#include "SMESHGUI.h"

#include "SMESHGUI_HypothesesUtils.h"
#include "SMESHGUI_Hypotheses.h"
#include "SMESHGUI_Utils.h"
#include "SMESHGUI_GEOMGenUtils.h"

#include <SMESH_TypeFilter.hxx>
#include <SMESH_NumberFilter.hxx>

#include <GEOM_SelectionFilter.h>

#include <SalomeApp_Tools.h>
#include <SALOMEDSClient_Study.hxx>
#include <SALOMEDSClient_AttributeIOR.hxx>
#include <SALOMEDSClient_AttributeName.hxx>
#include <SALOMEDS_SComponent.hxx>

#include <SalomeApp_SelectionMgr.h>
#include <SalomeApp_UpdateFlags.h>
#include <SUIT_MessageBox.h>
#include <SUIT_Desktop.h>
#include <SUIT_OverrideCursor.h>

#include <utilities.h>

#include <qstringlist.h>
#include <qlineedit.h>

#include <SALOMEDS_SObject.hxx>

#define DEB_SLN

//================================================================================
/*!
 * \brief Constructor
  * \param theToCreate - if this parameter is true then operation is used for creation,
  * for editing otherwise
 * 
 * Initialize operation
*/
//================================================================================ 
SMESHGUI_MeshOp::SMESHGUI_MeshOp( const bool theToCreate, const bool theIsMesh )
: SMESHGUI_SelectionOp(),
  myToCreate( theToCreate ),
  myIsMesh( theIsMesh ),
  myDlg( 0 )
{
}

//================================================================================
/*!
 * \brief Destructor
*/
//================================================================================ 
SMESHGUI_MeshOp::~SMESHGUI_MeshOp()
{
  if( myDlg )
    delete myDlg;
}

//================================================================================
/*!
 * \brief Gets dialog of this operation
  * \retval SalomeApp_Dialog* - pointer to dialog of this operation
*/
//================================================================================ 
SalomeApp_Dialog* SMESHGUI_MeshOp::dlg() const
{
  return myDlg;
}

//================================================================================
/*!
 * \brief Creates or edits mesh
  * \retval bool - TRUE if operation is performed successfully, FALSE otherwise
 * 
 * Virtual slot redefined from the base class called when "Apply" button is clicked
 * creates or edits mesh
 */
//================================================================================
bool SMESHGUI_MeshOp::onApply()
{
  if( isStudyLocked() )
    return false;
  
  QString aMess;
  if ( !isValid( aMess ) )
  {
    if ( aMess != "" )
      SUIT_MessageBox::warn1( myDlg, 
        tr( "SMESH_WRN_WARNING" ), aMess, tr( "SMESH_BUT_OK" ) );
    return false;
  }
  
  bool aResult = false;
  aMess = "";
  try
  {
    if ( myToCreate && myIsMesh )
      aResult = createMesh( aMess );
    if ( myToCreate && !myIsMesh )
      aResult = createSubMesh( aMess );
    else if ( !myToCreate )
      aResult = editMeshOrSubMesh( aMess );
    if ( aResult )  
      update( UF_ObjBrowser | UF_Model );
  }
  catch ( const SALOME::SALOME_Exception& S_ex ) 
  {
    SalomeApp_Tools::QtCatchCorbaException( S_ex );
    aResult = false;
  }
  catch ( ... )
  {
    aResult = false;
  }

  if ( aResult )  
  {
    if ( myToCreate )
      setDefaultName();
  }
  else
  {
    if ( aMess == "" )
      aMess = tr( "SMESH_OPERATION_FAILED" );
    SUIT_MessageBox::warn1( myDlg, 
      tr( "SMESH_ERROR" ), aMess, tr( "SMESH_BUT_OK" ) );
  }
  
  return aResult;
} 

//================================================================================
/*!
 * \brief Creates dialog if necessary and shows it
 * 
 * Virtual method redefined from base class called when operation is started creates 
 * dialog if necessary and shows it, activates selection
 */
//================================================================================
void SMESHGUI_MeshOp::startOperation()
{
  if( !myDlg )
  {
    myDlg = new SMESHGUI_MeshDlg( myToCreate, myIsMesh );
    for ( int i = SMESH::DIM_1D; i <= SMESH::DIM_3D; i++ )
    {
      connect( myDlg->tab( i ), SIGNAL( createHyp( const int, const int ) ), 
              this, SLOT( onCreateHyp( const int, const int) ) );
      connect( myDlg->tab( i ), SIGNAL( editHyp( const int, const int ) ), 
              this, SLOT( onEditHyp( const int, const int) ) );
    }
  }
  SMESHGUI_SelectionOp::startOperation();

  // iterate through dimensions and get available and existing algoritms and hypotheses, 
  // set them to the dialog
  int i, j;
  _PTR(SComponent) aFather = SMESH::GetActiveStudyDocument()->FindComponent( "SMESH" );
  for ( i = SMESH::DIM_1D; i <= SMESH::DIM_3D; i++ )
  {
    SMESHGUI_MeshTab* aTab = myDlg->tab( i );
    QStringList anAvailable, anExisting;
    for ( j = Algo; j <= AddHyp; j++ )
    {
      availableHyps( i, j, anAvailable );
      existingHyps( i, j, aFather, anExisting, myExistingHyps[ i ][ j ] );
     
      aTab->setAvailableHyps( j, anAvailable );
      aTab->setExistingHyps( j, anExisting );
    }
  }
  if ( myToCreate )
  {
    setDefaultName();
    myDlg->activateObject( myIsMesh ? SMESHGUI_MeshDlg::Geom : SMESHGUI_MeshDlg::Mesh );
  }
  else
    myDlg->activateObject( SMESHGUI_MeshDlg::Obj );
  
  selectionDone();
  
  myDlg->setCurrentTab( SMESH::DIM_1D );
  myDlg->show();
}

//================================================================================
/*!
 * \brief Creates selection filter
  * \param theId - identifier of current selection widget
  * \retval SUIT_SelectionFilter* - pointer to the created filter or null
 * 
 * Creates selection filter in accordance with identifier of current selection widget
 */
//================================================================================
SUIT_SelectionFilter* SMESHGUI_MeshOp::createFilter( const int theId ) const
{
  if ( theId == SMESHGUI_MeshDlg::Geom )
  {
//     TColStd_MapOfInteger allTypesMap;
//     for ( int i = 0; i < 10; i++ )
//       allTypesMap.Add( i );
//     return new SMESH_NumberFilter( "GEOM", TopAbs_SHAPE, 0, allTypesMap );
    return new GEOM_SelectionFilter( (SalomeApp_Study*)study(), true );
  }
  else if ( theId == SMESHGUI_MeshDlg::Obj && !myToCreate )
    return new SMESH_TypeFilter( MESHorSUBMESH );
  else if ( theId == SMESHGUI_MeshDlg::Mesh )
    return new SMESH_TypeFilter( MESH );
  else
    return 0;
}

//================================================================================
/*!
 * \brief Updates dialog's look and feel
 * 
 * Virtual method redefined from the base class updates dialog's look and feel
 */
//================================================================================
void SMESHGUI_MeshOp::selectionDone()
{
  SMESHGUI_SelectionOp::selectionDone();
  
  if ( !myToCreate )
  {
    try
    {
      QString anObjEntry = myDlg->selectedObject( SMESHGUI_MeshDlg::Obj );
      _PTR(SObject) pObj = studyDS()->FindObjectID( anObjEntry );
      if ( pObj != 0 )
      {
        SMESH::SMESH_subMesh_var aVar = 
          SMESH::SMESH_subMesh::_narrow( _CAST( SObject,pObj )->GetObject() );
        myDlg->setObjectShown( SMESHGUI_MeshDlg::Mesh, !aVar->_is_nil() );
        myDlg->objectWg( SMESHGUI_MeshDlg::Mesh, SMESHGUI_MeshDlg::Btn )->hide();
        myDlg->updateGeometry();
        myDlg->adjustSize();
        readMesh();
      }
      else
        myDlg->reset();
    }
    catch ( const SALOME::SALOME_Exception& S_ex ) 
    {
      SalomeApp_Tools::QtCatchCorbaException( S_ex );
    }
    catch ( ... )
    {
    }
  }
}

//================================================================================
/*!
 * \brief Verifies validity of input data
  * \param theMess - Output parameter intended for returning error message
  * \retval bool  - TRUE if input data is valid, false otherwise
 * 
 * Verifies validity of input data. This method is called when "Apply" or "OK" button
 * is pressed before mesh creation or editing.
 */
//================================================================================
bool SMESHGUI_MeshOp::isValid( QString& theMess ) const
{
  // Selected object to be  edited
  if ( !myToCreate && myDlg->selectedObject( SMESHGUI_MeshDlg::Obj ) == "" )
  {
    theMess = tr( "THERE_IS_NO_OBJECT_FOR_EDITING" );
    return false;
  }
  
  // Name 
  QString aMeshName = myDlg->objectText( SMESHGUI_MeshDlg::Obj );
  aMeshName = aMeshName.stripWhiteSpace();
  if ( aMeshName == "" )
  {
    theMess = myIsMesh ? tr( "NAME_OF_MESH_IS_EMPTY" ) : tr( "NAME_OF_SUBMESH_IS_EMPTY" );
    return false;
  }
  
  // Geom
  if ( myToCreate )
  {
    QString aGeomEntry = myDlg->selectedObject( SMESHGUI_MeshDlg::Geom );
    if ( aGeomEntry == "" )
    {
      theMess = tr( "GEOMETRY_OBJECT_IS_NOT_DEFINED" );
      return false;
    }
    _PTR(SObject) pGeom = studyDS()->FindObjectID( aGeomEntry );
    if ( !pGeom || GEOM::GEOM_Object::_narrow( _CAST( SObject,pGeom )->GetObject() )->_is_nil() )
    {
      theMess = tr( "GEOMETRY_OBJECT_IS_NULL" );
      return false;
    }
    
    // Mesh
    if ( !myIsMesh ) // i.e sub-mesh creation, 
    {
      QString aMeshEntry = myDlg->selectedObject( SMESHGUI_MeshDlg::Mesh );
      if ( aMeshEntry == "" )
      {
        theMess = tr( "MESH_IS_NOT_DEFINED" );
        return false;
      }
      _PTR(SObject) pMesh = studyDS()->FindObjectID( aMeshEntry );
      if ( !pMesh || SMESH::SMESH_Mesh::_narrow( _CAST( SObject,pMesh )->GetObject() )->_is_nil() )
      {
        theMess = tr( "MESH_IS_NULL" );
        return false;
      }
    }
  }
  return true;
}

//================================================================================
/*!
 * \brief Gets available hypotheses or algorithms
  * \param theDim - specifies dimension of returned hypotheses/algorifms 
  * \param theHypType - specifies whether algorims or hypotheses or additional ones 
  * are retrieved (possible values are in HypType enumeration)
  * \param theHyps - Output list of hypotheses' names
 * 
 * Gets available hypotheses or algorithm in accordance with input parameters
 */
//================================================================================
void SMESHGUI_MeshOp::availableHyps( const int theDim,
                                     const int theHypType,
                                     QStringList& theHyps ) const
{
  theHyps.clear();
  QStringList aHypTypeNameList = SMESH::GetAvailableHypotheses( 
    theHypType == Algo , theDim, theHypType == AddHyp );
  QStringList::const_iterator anIter;
  for ( anIter = aHypTypeNameList.begin(); anIter != aHypTypeNameList.end(); ++anIter )
  {
    HypothesisData* aData = SMESH::GetHypothesisData( *anIter );
    theHyps.append( aData->Label );
  }
}

//================================================================================
/*!
 * \brief Gets existing hypotheses or algorithms
  * \param theDim - specifies dimension of returned hypotheses/algorifms 
  * \param theHypType - specifies whether algorims or hypotheses or additional ones 
  * are retrieved (possible values are in HypType enumeration)
  * \param theFather - start object for finding ( may be component, mesh, or sub-mesh )
  * \param theHyps - output list of names. 
  * \param theHypVars - output list of variables. 
 * 
 * Gets existing (i.e. already created) hypotheses or algorithm in accordance with 
 * input parameters
 */
//================================================================================
void SMESHGUI_MeshOp::existingHyps( const int theDim,
                                    const int theHypType,
                                    _PTR(SObject) theFather,
                                    QStringList& theHyps,
                                    QValueList<SMESH::SMESH_Hypothesis_var>& theHypVars )
{
  // Clear hypoheses list
  theHyps.clear();
  theHypVars.clear();
  
  if ( !theFather )
    return;
  
  _PTR(SObject)          aHypRoot;
  _PTR(GenericAttribute) anAttr;
  _PTR(AttributeName)    aName;
  _PTR(AttributeIOR)     anIOR;
  
  bool isMesh = !_CAST( SComponent, theFather );
  int aPart = -1;
  if ( isMesh )
    aPart = theHypType == Algo ? 3 : 2;
  else
    aPart = theHypType == Algo ? 2 : 1;

  if ( theFather->FindSubObject( aPart, aHypRoot ) ) 
  {
    _PTR(ChildIterator) anIter =
      SMESH::GetActiveStudyDocument()->NewChildIterator( aHypRoot );
    for (; anIter->More(); anIter->Next() ) 
    {
      _PTR(SObject) anObj = anIter->Value();
      if ( isMesh ) // i.e. mesh or submesh
      {
        _PTR(SObject) aRefObj;
        if ( anObj->ReferencedObject( aRefObj ) )
          anObj = aRefObj;
        else
          continue;
      }
      if ( anObj->FindAttribute( anAttr, "AttributeName" ) ) 
      {
        aName = anAttr;
        CORBA::Object_var aVar = _CAST(SObject,anObj)->GetObject();
        if ( !CORBA::is_nil( aVar ) )
        {
          SMESH::SMESH_Hypothesis_var aHypVar = SMESH::SMESH_Hypothesis::_narrow( aVar );
          if ( !aHypVar->_is_nil() ) 
          {
            QString aHypType( aHypVar->GetName() );
            HypothesisData* aData = SMESH::GetHypothesisData( aHypType );
            if ( ( theDim == -1 || aData->Dim.contains( theDim ) ) && 
                 ( theHypType == AddHyp ) == aData->IsAux )
            {
              theHyps.append( aName->Value().c_str() );
              theHypVars.append( aHypVar );
            }
          }
        }
      }
    }
  }
}

//================================================================================
/*!
 * \brief Calls plugin methods for hypothesis creation 
  * \param theHypType - specifies whether main hypotheses or additional ones 
  * are created
  * \param theIndex - index of type of hypothesis to be cerated
 * 
 * Speicfies dimension of hypothesis to be created (using sender() method), specifies
 * its type and calls plugin methods for hypothesis creation 
 */
//================================================================================
void SMESHGUI_MeshOp::onCreateHyp( const int theHypType, const int theIndex )
{
  // Speicfies dimension of hypothesis to be created
  const QObject* aSender = sender();
  int aDim = -1;
  for ( int i = SMESH::DIM_1D; i <= SMESH::DIM_3D; i++ )
    if ( aSender == myDlg->tab( i ) )
      aDim = i;
  if ( aDim == -1 )
    return;
  
  // Speicfies type of hypothesis to be created
  QStringList aHypTypeNames = SMESH::GetAvailableHypotheses( false , aDim, theHypType == AddHyp );
  if ( theIndex < 0 || theIndex >= aHypTypeNames.count() )
    return;

  QString aHypTypeName = aHypTypeNames[ theIndex ];
  HypothesisData* aData = SMESH::GetHypothesisData( aHypTypeName.latin1() );
  if ( aData == 0 )
    return;
  
  QString aClientLibName = aData->ClientLibName;
  QStringList anOldHyps;
  _PTR(SComponent) aFather = SMESH::GetActiveStudyDocument()->FindComponent( "SMESH" );
  existingHyps( aDim, theHypType, aFather, anOldHyps, myExistingHyps[ aDim ][ theHypType ] );
  
  if ( aClientLibName == "" ) 
  {
    // Call hypothesis creation server method (without GUI)
    QString aHypName = aData->Label;
    SMESH::CreateHypothesis( aHypTypeName, aHypName, false );
  } 
  else 
  {
    // Get hypotheses creator client (GUI)
    SMESHGUI_GenericHypothesisCreator* aCreator = SMESH::GetHypothesisCreator( aHypTypeName );
    
    // Create hypothesis
    aCreator->CreateHypothesis( false, myDlg );
  }
  
  QStringList aNewHyps;
  aFather = SMESH::GetActiveStudyDocument()->FindComponent( "SMESH" );
  existingHyps( aDim, theHypType, aFather, aNewHyps, myExistingHyps[ aDim ][ theHypType ] );
  if ( aNewHyps.count() > anOldHyps.count() )
  {
    for ( int i = anOldHyps.count(); i < aNewHyps.count(); i++ )
      myDlg->tab( aDim )->addHyp( theHypType, aNewHyps[ i ] );
  }
}

//================================================================================
/*!
 * \brief Calls plugin methods for hypothesis editing
  * \param theHypType - specifies whether main hypothesis or additional one
  * is edited
  * \param theIndex - index of existing hypothesis
 * 
 * Calls plugin methods for hypothesis editing
 */
//================================================================================
void SMESHGUI_MeshOp::onEditHyp( const int theHypType, const int theIndex )
{
  // Speicfies dimension of hypothesis to be created
  const QObject* aSender = sender();
  int aDim = -1;
  for ( int i = SMESH::DIM_1D; i <= SMESH::DIM_3D; i++ )
    if ( aSender == myDlg->tab( i ) )
      aDim = i;
  if ( aDim == -1 )
    return;
  
  QValueList<SMESH::SMESH_Hypothesis_var> aList = myExistingHyps[ aDim ][ theHypType ];
  SMESH::SMESH_Hypothesis_var aHyp = aList[ theIndex - 1 ];
  if ( aHyp->_is_nil() )
    return;
  
  char* aTypeName = aHyp->GetName();
  SMESHGUI_GenericHypothesisCreator* aCreator = SMESH::GetHypothesisCreator( aTypeName );
  if ( aCreator )
    aCreator->EditHypothesis( aHyp );
}

//================================================================================
/*!
 * \brief Creates mesh
  * \param theMess - Output parameter intended for returning error message
  * \retval bool  - TRUE if mesh is created, FALSE otherwise
 * 
 * Creates mesh
 */
//================================================================================
bool SMESHGUI_MeshOp::createMesh( QString& theMess )
{
  theMess = "";
  
  QString aGeomEntry = myDlg->selectedObject( SMESHGUI_MeshDlg::Geom );
  _PTR(SObject) pGeom = studyDS()->FindObjectID( aGeomEntry );
  GEOM::GEOM_Object_var aGeomVar = 
    GEOM::GEOM_Object::_narrow( _CAST( SObject,pGeom )->GetObject() );
  
  SMESH::SMESH_Gen_var aSMESHGen = SMESHGUI::GetSMESHGen();
  if ( aSMESHGen->_is_nil() )
    return false;
  
  SUIT_OverrideCursor aWaitCursor;
      
  // create mesh
  SMESH::SMESH_Mesh_var aMeshVar = aSMESHGen->CreateMesh( aGeomVar );
  if ( aMeshVar->_is_nil() )
    return false;
  _PTR(SObject) aMeshSO = SMESH::FindSObject( aMeshVar.in() );
  if ( aMeshSO )
    SMESH::SetName( aMeshSO, myDlg->objectText( SMESHGUI_MeshDlg::Obj ).latin1() );
  
  for ( int aDim = SMESH::DIM_1D; aDim <= SMESH::DIM_3D; aDim++ )
  {
    // assign hypotheses
    for ( int aHypType = MainHyp; aHypType <= AddHyp; aHypType++ )
    {
      int aHypIndex = currentHyp( aDim, aHypType );
      if ( aHypIndex >= 0 && aHypIndex < myExistingHyps[ aDim ][ aHypType ].count() )
      {
        SMESH::SMESH_Hypothesis_var aHypVar = myExistingHyps[ aDim ][ aHypType ][ aHypIndex ];
        if ( !aHypVar->_is_nil() )
          SMESH::AddHypothesisOnMesh( aMeshVar, aHypVar );
      }
    }
    // find or create algorithm
    SMESH::SMESH_Hypothesis_var anAlgoVar = getAlgo( aDim );
    if ( !anAlgoVar->_is_nil() )
      SMESH::AddHypothesisOnMesh( aMeshVar, anAlgoVar );
  }    
  return true;
}

//================================================================================
/*!
 * \brief Creates sub-mesh
  * \param theMess - Output parameter intended for returning error message
  * \retval bool  - TRUE if sub-mesh is created, FALSE otherwise
 * 
 * Creates sub-mesh
 */
//================================================================================
bool SMESHGUI_MeshOp::createSubMesh( QString& theMess )
{
  theMess = "";
  
  SMESH::SMESH_Gen_var aSMESHGen = SMESHGUI::GetSMESHGen();
  if ( aSMESHGen->_is_nil() )
    return false;
  
  // get mesh object
  QString aMeshEntry = myDlg->selectedObject( SMESHGUI_MeshDlg::Mesh );
  _PTR(SObject) pMesh = studyDS()->FindObjectID( aMeshEntry );
  SMESH::SMESH_Mesh_var aMeshVar = 
    SMESH::SMESH_Mesh::_narrow( _CAST( SObject,pMesh )->GetObject() );
  
  // get geom object
  QString aGeomEntry = myDlg->selectedObject( SMESHGUI_MeshDlg::Geom );
  _PTR(SObject) pGeom = studyDS()->FindObjectID( aGeomEntry );
  GEOM::GEOM_Object_var aGeomVar = 
    GEOM::GEOM_Object::_narrow( _CAST( SObject,pGeom )->GetObject() );
  
  SUIT_OverrideCursor aWaitCursor;
      
  // create sub-mesh
  QString aName = myDlg->objectText( SMESHGUI_MeshDlg::Obj );
  SMESH::SMESH_subMesh_var aSubMeshVar = aMeshVar->GetSubMesh( aGeomVar, aName.latin1() );
  
  for ( int aDim = SMESH::DIM_1D; aDim <= SMESH::DIM_3D; aDim++ )
  {
    // assign hypotheses
    for ( int aHypType = MainHyp; aHypType <= AddHyp; aHypType++ )
    {
      int aHypIndex = currentHyp( aDim, aHypType );
      if ( aHypIndex >= 0 && aHypIndex < myExistingHyps[ aDim ][ aHypType ].count() )
      {
        SMESH::SMESH_Hypothesis_var aHypVar = 
          myExistingHyps[ aDim ][ aHypType ][ aHypIndex ];
        if ( !aHypVar->_is_nil() )
          SMESH::AddHypothesisOnSubMesh( aSubMeshVar, aHypVar );
      }
    }
    // find or create algorithm
    SMESH::SMESH_Hypothesis_var anAlgoVar = getAlgo( aDim );
    if ( !anAlgoVar->_is_nil() )
      SMESH::AddHypothesisOnSubMesh( aSubMeshVar, anAlgoVar );
  }    
  return true;
}

//================================================================================
/*!
 * \brief Gets current hypothesis or algorithms
  * \param theDim - dimension of hypothesis or algorithm
  * \param theHypType - Type of hypothesis (Algo, MainHyp, AddHyp)  
  * \retval int - current hypothesis or algorithms
 * 
 * Gets current hypothesis or algorithms
 */
//================================================================================
int SMESHGUI_MeshOp::currentHyp( const int theDim, const int theHypType ) const
{
  return myDlg->tab( theDim )->currentHyp( theHypType ) - 1;
}

//================================================================================
/*!
 * \brief Sets current hypothesis or algorithms
  * \param theDim - dimension of hypothesis or algorithm
  * \param theHypType - Type of hypothesis (Algo, MainHyp, AddHyp)  
  * \param theIndex - Index of hypothesis
 * 
 * Gets current hypothesis or algorithms
 */
//================================================================================
void SMESHGUI_MeshOp::setCurrentHyp( const int theDim, 
                                     const int theHypType, 
                                     const int theIndex )
{
  myDlg->tab( theDim )->setCurrentHyp( theHypType, theIndex + 1 );
}

//================================================================================
/*!
 * \brief Generates default and sets mesh/submesh name
 * 
 * Generates and sets default mesh/submesh name(Mesh_1, Mesh_2, etc.)
 */
//================================================================================
void SMESHGUI_MeshOp::setDefaultName() const
{
  QString aResName;
  
  _PTR(Study) aStudy = SMESH::GetActiveStudyDocument();
  int i = 1;
  QString aPrefix = tr( myIsMesh ? "SMESH_OBJECT_MESH" : "SMESH_SUBMESH" ) + "_";
  _PTR(SObject) anObj;
  do 
  {
    aResName = aPrefix + QString::number( i++ );
    anObj = aStudy->FindObject( aResName.latin1() );
  } 
  while ( anObj );
  
  QLineEdit* aControl = ( QLineEdit* )myDlg->objectWg( 
    SMESHGUI_MeshDlg::Obj, SMESHGUI_MeshDlg::Control );
  aControl->setText( aResName );
}

//================================================================================
/*!
 * \brief Gets algorithm or creates it if necessary
  * \param theDim - specifies dimension of returned hypotheses/algorifms 
  * \retval SMESH::SMESH_Hypothesis_var - algorithm  
 * 
 * Gets algorithm or creates it if necessary
 */
//================================================================================
SMESH::SMESH_Hypothesis_var SMESHGUI_MeshOp::getAlgo( const int theDim )
{
  SMESH::SMESH_Hypothesis_var anAlgoVar;
  int aHypIndex = currentHyp( theDim, Algo );
  QStringList aHypTypeNameList = SMESH::GetAvailableHypotheses( true, theDim, false );
  if ( aHypIndex < 0 || aHypIndex >= aHypTypeNameList.count() )
    return anAlgoVar;
  QString aHypName = aHypTypeNameList[ aHypIndex ];
  QValueList<SMESH::SMESH_Hypothesis_var>& aHypVarList = myExistingHyps[ theDim ][ Algo ];
  QValueList<SMESH::SMESH_Hypothesis_var>::iterator anIter;
  for ( anIter = aHypVarList.begin(); anIter != aHypVarList.end(); anIter++ )
  {
    SMESH::SMESH_Hypothesis_var aHypVar = *anIter;
    if ( !aHypVar->_is_nil() && aHypName == aHypVar->GetName() )
    {
      anAlgoVar = aHypVar;
      break;
    }
  }
  if ( anAlgoVar->_is_nil() )
  {
    HypothesisData* aHypData = SMESH::GetHypothesisData( aHypName );  
    if ( aHypData )
    {
      QString aClientLibName = aHypData->ClientLibName;
      if ( aClientLibName == "" ) 
        SMESH::CreateHypothesis( aHypName, aHypData->Label, true );
      else
      {
        SMESHGUI_GenericHypothesisCreator* aCreator =           
          SMESH::GetHypothesisCreator( aHypName );
        if ( aCreator )
          aCreator->CreateHypothesis( true, myDlg );
      }
      QStringList tmpList;
      _PTR(SComponent) aFather = SMESH::GetActiveStudyDocument()->FindComponent( "SMESH" );
      existingHyps( theDim, Algo, aFather, tmpList, myExistingHyps[ theDim ][ Algo ] );
    }
    
    QValueList<SMESH::SMESH_Hypothesis_var>& aNewHypVarList = myExistingHyps[ theDim ][ Algo ];
    for ( anIter = aNewHypVarList.begin(); anIter != aNewHypVarList.end(); ++anIter )
    {
      SMESH::SMESH_Hypothesis_var aHypVar = *anIter;
      if ( !aHypVar->_is_nil() && aHypName == aHypVar->GetName() )
      {
        anAlgoVar = aHypVar;
        break;
      }
    }
  }
  
  return anAlgoVar._retn();
}

//================================================================================
/*!
 * \brief Reads parameters of edited mesh and assigns them to the dialog
 * 
 * Reads parameters of edited mesh and assigns them to the dialog (called when
 * mesh is edited only)
 */
//================================================================================
void SMESHGUI_MeshOp::readMesh()
{
  QString anObjEntry = myDlg->selectedObject( SMESHGUI_MeshDlg::Obj );
  _PTR(SObject) pObj = studyDS()->FindObjectID( anObjEntry );
  if ( !pObj )
    return;
  
  // Get name of mesh if current object is sub-mesh
  SMESH::SMESH_subMesh_var aSubMeshVar = 
      SMESH::SMESH_subMesh::_narrow( _CAST( SObject,pObj )->GetObject() );
  if ( !aSubMeshVar->_is_nil() )
  {
    SMESH::SMESH_Mesh_var aMeshVar =  aSubMeshVar->GetFather();
    if ( !aMeshVar->_is_nil() )
    {
      _PTR(SObject) aMeshSO = SMESH::FindSObject( aMeshVar );
      QString aMeshName = name( aMeshSO );
      myDlg->setObjectText( SMESHGUI_MeshDlg::Mesh, aMeshName );
    }
  }
  
  // Get name of geometry object
  GEOM::GEOM_Object_var aGeomVar = SMESH::GetShapeOnMeshOrSubMesh( pObj );
  if ( !aGeomVar->_is_nil() )
  {
    _PTR(SObject) aGeomSO = studyDS()->FindObjectID( aGeomVar->GetStudyEntry() );
    QString aShapeName = name( aGeomSO );
    myDlg->setObjectText( SMESHGUI_MeshDlg::Geom, aShapeName );
  }
  
  // Get hypotheses and algorithms assigned to the mesh/sub-mesh
  for ( int dim = SMESH::DIM_1D; dim <= SMESH::DIM_3D; dim++ )
  {
    // get algorithm
    QStringList anExisting;
    int aHypIndex = -1;
    existingHyps( dim, Algo, pObj, anExisting, myObjHyps[ dim ][ Algo ] );
    if ( myObjHyps[ dim ][ Algo ].count() > 0 )
    {
      SMESH::SMESH_Hypothesis_var aVar = myObjHyps[ dim ][ Algo ].first();
      QString aHypTypeName = aVar->GetName();
      
      QStringList aHypTypeNameList = SMESH::GetAvailableHypotheses( true , dim, false );
      for ( int i = 0, n = aHypTypeNameList.count(); i < n; i++ )
        if ( aHypTypeName == aHypTypeNameList[ i ] )
        {
          aHypIndex = i;
          break;
        }
    }
    setCurrentHyp( dim, Algo, aHypIndex );
          
    // get hypotheses
    for ( int hypType = MainHyp; hypType <= AddHyp; hypType++ )
    {
      // get hypotheses
      existingHyps( dim, hypType, pObj, anExisting, myObjHyps[ dim ][ hypType ] );
      // find index of requered hypothesis among existing ones for this dimension
      // and hyp types
      int aHypIndex = -1;
      if ( myObjHyps[ dim ][ hypType ].count() > 0 )
        aHypIndex = find( myObjHyps[ dim ][ hypType ].first(), 
                          myExistingHyps[ dim ][ hypType ] );
      setCurrentHyp( dim, hypType, aHypIndex );
    }
  }
}

//================================================================================
/*!
 * \brief Gets name of object
  * \param theSO - SObject
  * \retval QString - name of object  
 * 
 * Gets name of object
 */
//================================================================================
QString SMESHGUI_MeshOp::name( _PTR(SObject) theSO ) const
{
  QString aResName;
  if ( theSO )
  {
    _PTR(GenericAttribute) anAttr;
    _PTR(AttributeName)    aNameAttr;
    if ( theSO->FindAttribute( anAttr, "AttributeName" ) ) 
    {
      aNameAttr = anAttr;              
      aResName = aNameAttr->Value().c_str();
    }
  }
  return aResName;
}

//================================================================================
/*!
 * \brief Finds hypothesis in input list
  * \param theHyp - hypothesis to be found
  * \param theHypList - input list of hypotheses
  * \retval int - index of hypothesis or -1 if it is not found  
 * 
 * Finds position of hypothesis in input list
 */
//================================================================================
int SMESHGUI_MeshOp::find( const SMESH::SMESH_Hypothesis_var& theHyp,
                           const QValueList<SMESH::SMESH_Hypothesis_var>& theHypList ) const
{
  int aRes = -1;
  if ( !theHyp->_is_nil() )
  {
    int i = 0;
    QValueList<SMESH::SMESH_Hypothesis_var>::const_iterator anIter;
    for ( anIter = theHypList.begin(); anIter != theHypList.end(); ++ anIter )
    {
      if ( theHyp->_is_equivalent( *anIter ) )
      {
        aRes = i;
        break;
      }
      i++;
    }
  }
  return aRes;
}                           

//================================================================================
/*!
 * \brief Edits mesh or sub-mesh
  * \param theMess - Output parameter intended for returning error message
  * \retval bool  - TRUE if mesh is edited succesfully, FALSE otherwise
 * 
 * Assigns new name hypotheses and algoriths to the mesh or sub-mesh
 */
//================================================================================
bool SMESHGUI_MeshOp::editMeshOrSubMesh( QString& theMess )
{
  theMess = "";
  
  SMESH::SMESH_Gen_var aSMESHGen = SMESHGUI::GetSMESHGen();
  if ( aSMESHGen->_is_nil() )
    return false;
  
  QString anObjEntry = myDlg->selectedObject( SMESHGUI_MeshDlg::Obj );
  _PTR(SObject) pObj = studyDS()->FindObjectID( anObjEntry );
  if ( !pObj )
    return false;

  SUIT_OverrideCursor aWaitCursor;
    
  // Set new name
  SMESH::SetName( pObj, myDlg->objectText( SMESHGUI_MeshDlg::Obj ).latin1() );
  
  // Assign new hypotheses and algorithms
  for ( int dim = SMESH::DIM_1D; dim <= SMESH::DIM_3D; dim++ )
  {
    // create algorithm if necessary
    getAlgo( dim );
    
    // assign hypotheses
    for ( int hypType = Algo; hypType <= AddHyp; hypType++ )
    {
      int aNewHypIndex = currentHyp( dim, hypType );
      int anOldHypIndex = -1;
      if ( myObjHyps[ dim ][ hypType ].count() > 0 )
        anOldHypIndex = find( myObjHyps[ dim ][ hypType ].first(), 
                              myExistingHyps[ dim ][ hypType ] );
      if ( aNewHypIndex !=  anOldHypIndex )
      {
        // remove old hypotheses
        if ( anOldHypIndex >= 0 )
          SMESH::RemoveHypothesisOrAlgorithmOnMesh( 
            pObj, myExistingHyps[ dim ][ hypType ][ anOldHypIndex ] );
        
        // assign new hypotheses
        if ( aNewHypIndex != -1 )
        {
          SMESH::SMESH_Mesh_var aMeshVar = 
              SMESH::SMESH_Mesh::_narrow( _CAST(SObject,pObj)->GetObject() );
          bool isMesh = !aMeshVar->_is_nil();
          if ( isMesh )
          {
            SMESH::AddHypothesisOnMesh( 
              aMeshVar, myExistingHyps[ dim ][ hypType ][ aNewHypIndex ] );
          }
          else
          {
            SMESH::SMESH_subMesh_var aVar = 
              SMESH::SMESH_subMesh::_narrow( _CAST(SObject,pObj)->GetObject() );
            if ( !aVar->_is_nil() )
              SMESH::AddHypothesisOnSubMesh( 
                aVar, myExistingHyps[ dim ][ hypType ][ aNewHypIndex ] );
          }
        }
        // reread all hypotheses of mesh if necessary
        QStringList anExisting;
        existingHyps( dim, hypType, pObj, anExisting, myObjHyps[ dim ][ hypType ] );
      }
    }
  }
  
  return true;
}

//================================================================================
/*!
 * \brief Verifies whether given operator is valid for this one
  * \param theOtherOp - other operation
  * \return Returns TRUE if the given operator is valid for this one, FALSE otherwise
*
* Virtual method redefined from base class verifies whether given operator is valid for
* this one (i.e. can be started "above" this operator). In current implementation method
* retuns false if theOtherOp operation is not intended for deleting objects or mesh
* elements.
*/
//================================================================================
bool SMESHGUI_MeshOp::isValid( SUIT_Operation* theOp ) const
{
  return SMESHGUI_Operation::isValid( theOp ) && !theOp->inherits( "SMESHGUI_MeshOp" );
}