//  Copyright (C) 2007-2008  CEA/DEN, EDF R&D, OPEN CASCADE
//
//  Copyright (C) 2003-2007  OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
//  CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
//
//  This library is free software; you can redistribute it and/or
//  modify it under the terms of the GNU Lesser General Public
//  License as published by the Free Software Foundation; either
//  version 2.1 of the License.
//
//  This library is distributed in the hope that it will be useful,
//  but WITHOUT ANY WARRANTY; without even the implied warranty of
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
//  Lesser General Public License for more details.
//
//  You should have received a copy of the GNU Lesser General Public
//  License along with this library; if not, write to the Free Software
//  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
//
//  See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
//
//  SMESH SMESHGUI : GUI for SMESH component
//  File   : SMESHGUI_SewingDlg.cxx
//  Author : Michael ZORIN
//  Module : SMESH
//  $Header:
//
#include "SMESHGUI_SewingDlg.h"

#include "SMESHGUI.h"
#include "SMESHGUI_Utils.h"
#include "SMESHGUI_VTKUtils.h"
#include "SMESHGUI_MeshUtils.h"
#include "SMESHGUI_IdValidator.h"

#include "SMESH_Actor.h"
#include "SMDS_Mesh.hxx"

#include "SUIT_Session.h"
#include "SUIT_ResourceMgr.h"
#include "SUIT_Desktop.h"
#include "SUIT_MessageBox.h"

#include "LightApp_Application.h"

#include "SVTK_ViewModel.h"
#include "SVTK_ViewWindow.h"
#include "SVTK_Selector.h"
#include "SVTK_Selection.h"
#include "SALOME_ListIO.hxx"

#include "utilities.h"

// OCCT Includes
#include <TColStd_MapOfInteger.hxx>
#include <TColStd_IndexedMapOfInteger.hxx>

// QT Includes
#include <qapplication.h>
#include <qbuttongroup.h>
#include <qgroupbox.h>
#include <qlabel.h>
#include <qlineedit.h>
#include <qpushbutton.h>
#include <qradiobutton.h>
#include <qcheckbox.h>
#include <qlayout.h>
#include <qpixmap.h>

#include CORBA_SERVER_HEADER(SMESH_MeshEditor)

using namespace std;


//=================================================================================
// class    : SMESHGUI_SewingDlg()
// purpose  :
//=================================================================================
SMESHGUI_SewingDlg::SMESHGUI_SewingDlg( SMESHGUI* theModule, const char* name,
                                        bool modal, WFlags fl)
     : QDialog( SMESH::GetDesktop( theModule ), name, modal, WStyle_Customize | WStyle_NormalBorder |
                WStyle_Title | WStyle_SysMenu | Qt::WDestructiveClose),
      mySMESHGUI( theModule ),
      mySelectionMgr( SMESH::GetSelectionMgr( theModule ) )
{
  SUIT_ResourceMgr* mgr = SMESH::GetResourceMgr( mySMESHGUI );
  QPixmap image0 (mgr->loadPixmap("SMESH", tr("ICON_SMESH_SEWING_FREEBORDERS")));
  QPixmap image1 (mgr->loadPixmap("SMESH", tr("ICON_SMESH_SEWING_CONFORM_FREEBORDERS")));
  QPixmap image2 (mgr->loadPixmap("SMESH", tr("ICON_SMESH_SEWING_BORDERTOSIDE")));
  QPixmap image3 (mgr->loadPixmap("SMESH", tr("ICON_SMESH_SEWING_SIDEELEMENTS")));
  QPixmap image4 (mgr->loadPixmap("SMESH", tr("ICON_SELECT")));

  if (!name)
    setName("SMESHGUI_SewingDlg");
  resize(303, 185);
  setCaption(tr("SMESH_SEWING"));
  setSizeGripEnabled(TRUE);
  SMESHGUI_SewingDlgLayout = new QGridLayout(this);
  SMESHGUI_SewingDlgLayout->setSpacing(6);
  SMESHGUI_SewingDlgLayout->setMargin(11);

  /***************************************************************/
  GroupConstructors = new QButtonGroup(this, "GroupConstructors");
  GroupConstructors->setSizePolicy(QSizePolicy((QSizePolicy::SizeType)5,
                                               (QSizePolicy::SizeType)0, 0, 0,
                                               GroupConstructors->sizePolicy().hasHeightForWidth()));
  GroupConstructors->setTitle(tr("SMESH_SEWING"));
  GroupConstructors->setExclusive(TRUE);
  GroupConstructors->setColumnLayout(0, Qt::Vertical);
  GroupConstructors->layout()->setSpacing(0);
  GroupConstructors->layout()->setMargin(0);
  GroupConstructorsLayout = new QGridLayout(GroupConstructors->layout());
  GroupConstructorsLayout->setAlignment(Qt::AlignTop);
  GroupConstructorsLayout->setSpacing(6);
  GroupConstructorsLayout->setMargin(11);
  QHBoxLayout* RBLayout = new QHBoxLayout(0, 0, 6, "Layout2");
  RadioButton1= new QRadioButton(GroupConstructors, "RadioButton1");
  RadioButton1->setText(tr("" ));
  RadioButton1->setPixmap(image0);
  RBLayout->addWidget(RadioButton1);
  RadioButton2= new QRadioButton(GroupConstructors, "RadioButton2");
  RadioButton2->setText(tr("" ));
  RadioButton2->setPixmap(image1);
  RBLayout->addWidget(RadioButton2);
  RadioButton3= new QRadioButton(GroupConstructors, "RadioButton3");
  RadioButton3->setText(tr("" ));
  RadioButton3->setPixmap(image2);
  RBLayout->addWidget(RadioButton3);
  RadioButton4= new QRadioButton(GroupConstructors, "RadioButton4");
  RadioButton4->setText(tr("" ));
  RadioButton4->setPixmap(image3);
  RBLayout->addWidget(RadioButton4);
  GroupConstructorsLayout->addLayout(RBLayout, 0, 0);
  SMESHGUI_SewingDlgLayout->addWidget(GroupConstructors, 0, 0);

  /***************************************************************/
  GroupButtons = new QGroupBox(this, "GroupButtons");
  GroupButtons->setSizePolicy(QSizePolicy((QSizePolicy::SizeType)7,
                                          (QSizePolicy::SizeType)0, 0, 0,
                                          GroupButtons->sizePolicy().hasHeightForWidth()));
  GroupButtons->setGeometry(QRect(10, 10, 281, 48));
  GroupButtons->setTitle(tr("" ));
  GroupButtons->setColumnLayout(0, Qt::Vertical);
  GroupButtons->layout()->setSpacing(0);
  GroupButtons->layout()->setMargin(0);
  GroupButtonsLayout = new QGridLayout(GroupButtons->layout());
  GroupButtonsLayout->setAlignment(Qt::AlignTop);
  GroupButtonsLayout->setSpacing(6);
  GroupButtonsLayout->setMargin(11);
  buttonHelp = new QPushButton(GroupButtons, "buttonHelp");
  buttonHelp->setText(tr("SMESH_BUT_HELP" ));
  buttonHelp->setAutoDefault(TRUE);
  GroupButtonsLayout->addWidget(buttonHelp, 0, 4);
  buttonCancel = new QPushButton(GroupButtons, "buttonCancel");
  buttonCancel->setText(tr("SMESH_BUT_CLOSE"));
  buttonCancel->setAutoDefault(TRUE);
  GroupButtonsLayout->addWidget(buttonCancel, 0, 3);
  buttonApply = new QPushButton(GroupButtons, "buttonApply");
  buttonApply->setText(tr("SMESH_BUT_APPLY"));
  buttonApply->setAutoDefault(TRUE);
  GroupButtonsLayout->addWidget(buttonApply, 0, 1);
  QSpacerItem* spacer_9 = new QSpacerItem(20, 20, QSizePolicy::Expanding, QSizePolicy::Minimum);
  GroupButtonsLayout->addItem(spacer_9, 0, 2);
  buttonOk = new QPushButton(GroupButtons, "buttonOk");
  buttonOk->setText(tr("SMESH_BUT_APPLY_AND_CLOSE"));
  buttonOk->setAutoDefault(TRUE);
  buttonOk->setDefault(TRUE);
  GroupButtonsLayout->addWidget(buttonOk, 0, 0);
  SMESHGUI_SewingDlgLayout->addWidget(GroupButtons, 2, 0);

  /***************************************************************/
  GroupArguments = new QGroupBox(this, "GroupArguments");
  GroupArguments->setColumnLayout(0, Qt::Vertical);
  GroupArguments->layout()->setSpacing(0);
  GroupArguments->layout()->setMargin(0);
  GroupArgumentsLayout = new QGridLayout(GroupArguments->layout());
  GroupArgumentsLayout->setAlignment(Qt::AlignTop);
  GroupArgumentsLayout->setSpacing(6);
  GroupArgumentsLayout->setMargin(11);

  // First subgroup
  SubGroup1 = new QGroupBox(GroupArguments, "SubGroup1");
  SubGroup1->setColumnLayout(0, Qt::Vertical);
  SubGroup1->layout()->setSpacing(0);
  SubGroup1->layout()->setMargin(0);
  QGridLayout* SubGroup1Layout = new QGridLayout(SubGroup1->layout());
  SubGroup1Layout->setAlignment(Qt::AlignTop);
  SubGroup1Layout->setSpacing(6);
  SubGroup1Layout->setMargin(11);

  // Controls of the first subgroup
  TextLabel1 = new QLabel(SubGroup1, "TextLabel1");
  TextLabel1->setFixedWidth(104);
  SubGroup1Layout->addWidget(TextLabel1, 0, 0);

  SelectButton1  = new QPushButton(SubGroup1, "SelectButton1");
  SelectButton1->setPixmap(image4);
  SubGroup1Layout->addWidget(SelectButton1, 0, 1);

  LineEdit1 = new QLineEdit(SubGroup1, "LineEdit1");
  SubGroup1Layout->addWidget(LineEdit1, 0, 2);

  TextLabel2 = new QLabel(SubGroup1, "TextLabel2");
  SubGroup1Layout->addWidget(TextLabel2, 1, 0);

  SelectButton2  = new QPushButton(SubGroup1, "SelectButton2");
  SelectButton2->setPixmap(image4);
  SubGroup1Layout->addWidget(SelectButton2, 1, 1);

  LineEdit2 = new QLineEdit(SubGroup1, "LineEdit2");
  SubGroup1Layout->addWidget(LineEdit2, 1, 2);

  TextLabel3 = new QLabel(SubGroup1, "TextLabel3");
  SubGroup1Layout->addWidget(TextLabel3, 2, 0);

  SelectButton3  = new QPushButton(SubGroup1, "SelectButton3");
  SelectButton3->setPixmap(image4);
  SubGroup1Layout->addWidget(SelectButton3, 2, 1);

  LineEdit3 = new QLineEdit(SubGroup1, "LineEdit3");
  SubGroup1Layout->addWidget(LineEdit3, 2, 2);

  // Second subgroup
  SubGroup2 = new QGroupBox(GroupArguments, "SubGroup2");
  SubGroup2->setColumnLayout(0, Qt::Vertical);
  SubGroup2->layout()->setSpacing(0);
  SubGroup2->layout()->setMargin(0);
  QGridLayout* SubGroup2Layout = new QGridLayout(SubGroup2->layout());
  SubGroup2Layout->setAlignment(Qt::AlignTop);
  SubGroup2Layout->setSpacing(6);
  SubGroup2Layout->setMargin(11);

  // Controls of the first subgroup
  TextLabel4 = new QLabel(SubGroup2, "TextLabel4");
  SubGroup2Layout->addWidget(TextLabel4, 0, 0);

  SelectButton4  = new QPushButton(SubGroup2, "SelectButton4");
  SelectButton4->setPixmap(image4);
  SubGroup2Layout->addWidget(SelectButton4, 0, 1);

  LineEdit4 = new QLineEdit(SubGroup2, "LineEdit4");
  SubGroup2Layout->addWidget(LineEdit4, 0, 2);

  TextLabel5 = new QLabel(SubGroup2, "TextLabel5");
  SubGroup2Layout->addWidget(TextLabel5, 1, 0);

  SelectButton5  = new QPushButton(SubGroup2, "SelectButton5");
  SelectButton5->setPixmap(image4);
  SubGroup2Layout->addWidget(SelectButton5, 1, 1);

  LineEdit5 = new QLineEdit(SubGroup2, "LineEdit5");
  SubGroup2Layout->addWidget(LineEdit5, 1, 2);

  TextLabel6 = new QLabel(SubGroup2, "TextLabel6");
  SubGroup2Layout->addWidget(TextLabel6, 2, 0);

  SelectButton6  = new QPushButton(SubGroup2, "SelectButton6");
  SelectButton6->setPixmap(image4);
  SubGroup2Layout->addWidget(SelectButton6, 2, 1);

  LineEdit6 = new QLineEdit(SubGroup2, "LineEdit6");
  SubGroup2Layout->addWidget(LineEdit6, 2, 2);

  // Add subgroups to the group of arguments
  GroupArgumentsLayout->addWidget(SubGroup1, 0, 0);
  GroupArgumentsLayout->addWidget(SubGroup2, 1, 0);

  // Control for the merging equal elements
  CheckBoxMerge = new QCheckBox(GroupArguments, "CheckBoxMerge");
  CheckBoxMerge->setText(tr("MERGE_EQUAL_ELEMENTS" ));
  GroupArgumentsLayout->addWidget(CheckBoxMerge, 2, 0);

// Control for the polygons creation instead of splitting
  CheckBoxPolygons = new QCheckBox( GroupArguments, "CheckBoxPolygons" );
  CheckBoxPolygons->setText( tr( "CREATE_POLYGONS_INSTEAD_SPLITTING"  ) );
  GroupArgumentsLayout->addWidget( CheckBoxPolygons, 3, 0 );
  
  // Control for the polyedres creation to obtain conform mesh
  CheckBoxPolyedrs = new QCheckBox( GroupArguments, "CheckBoxPolyedrs" );
  CheckBoxPolyedrs->setText( tr( "CREATE_POLYEDRS_NEAR_BOUNDARY"  ) );
  GroupArgumentsLayout->addWidget( CheckBoxPolyedrs, 4, 0 );


  SMESHGUI_SewingDlgLayout->addWidget(GroupArguments, 1, 0);

  /* Initialisations */
  GroupArguments->show();
  RadioButton1->setChecked(TRUE);

  LineEdit2->setValidator(new SMESHGUI_IdValidator(this, "validator", 1));
  LineEdit3->setValidator(new SMESHGUI_IdValidator(this, "validator", 1));
  LineEdit5->setValidator(new SMESHGUI_IdValidator(this, "validator", 1));
  LineEdit6->setValidator(new SMESHGUI_IdValidator(this, "validator", 1));

  mySelector = (SMESH::GetViewWindow( mySMESHGUI ))->GetSelector();

  mySMESHGUI->SetActiveDialogBox((QDialog*)this);

  myHelpFileName = "sewing_meshes_page.html";

  Init();

  /* signals and slots connections */
  connect(buttonOk, SIGNAL(clicked()),     this, SLOT(ClickOnOk()));
  connect(buttonCancel, SIGNAL(clicked()), this, SLOT(ClickOnCancel()));
  connect(buttonApply, SIGNAL(clicked()), this, SLOT(ClickOnApply()));
  connect(buttonHelp, SIGNAL(clicked()), this, SLOT(ClickOnHelp()));
  connect(GroupConstructors, SIGNAL(clicked(int)), SLOT(ConstructorsClicked(int)));

  connect(SelectButton1, SIGNAL (clicked()),   this, SLOT(SetEditCurrentArgument()));
  connect(SelectButton2, SIGNAL (clicked()),   this, SLOT(SetEditCurrentArgument()));
  connect(SelectButton3, SIGNAL (clicked()),   this, SLOT(SetEditCurrentArgument()));
  connect(SelectButton4, SIGNAL (clicked()),   this, SLOT(SetEditCurrentArgument()));
  connect(SelectButton5, SIGNAL (clicked()),   this, SLOT(SetEditCurrentArgument()));
  connect(SelectButton6, SIGNAL (clicked()),   this, SLOT(SetEditCurrentArgument()));

  connect(mySMESHGUI, SIGNAL (SignalDeactivateActiveDialog()), this, SLOT(DeactivateActiveDialog()));
  connect(mySelectionMgr, SIGNAL(currentSelectionChanged()), this, SLOT(SelectionIntoArgument()));
  /* to close dialog if study change */
  connect(mySMESHGUI, SIGNAL (SignalCloseAllDialogs()), this, SLOT(ClickOnCancel()));

  connect(LineEdit1, SIGNAL(textChanged(const QString&)), SLOT(onTextChange(const QString&)));
  connect(LineEdit2, SIGNAL(textChanged(const QString&)), SLOT(onTextChange(const QString&)));
  connect(LineEdit3, SIGNAL(textChanged(const QString&)), SLOT(onTextChange(const QString&)));
  connect(LineEdit4, SIGNAL(textChanged(const QString&)), SLOT(onTextChange(const QString&)));
  connect(LineEdit5, SIGNAL(textChanged(const QString&)), SLOT(onTextChange(const QString&)));
  connect(LineEdit6, SIGNAL(textChanged(const QString&)), SLOT(onTextChange(const QString&)));

  this->show(); /* displays Dialog */

  ConstructorsClicked(0);
  resize(0,0);
}

//=================================================================================
// function : ~SMESHGUI_SewingDlg()
// purpose  : Destroys the object and frees any allocated resources
//=================================================================================
SMESHGUI_SewingDlg::~SMESHGUI_SewingDlg()
{
  // no need to delete child widgets, Qt does it all for us
}

//=================================================================================
// function : Init()
// purpose  :
//=================================================================================
void SMESHGUI_SewingDlg::Init()
{
  myBusy = false;

  myEditCurrentArgument = LineEdit1;
  LineEdit1->setFocus();
  myActor = 0;
  myMesh = SMESH::SMESH_Mesh::_nil();
  CheckBoxMerge->setChecked(false);
  CheckBoxPolygons->setChecked(false);
  CheckBoxPolyedrs->setChecked(false);
  SelectionIntoArgument();
}

//=================================================================================
// function : ConstructorsClicked()
// purpose  : Radio button management
//=================================================================================
void SMESHGUI_SewingDlg::ConstructorsClicked (int constructorId)
{
  disconnect(mySelectionMgr, 0, this, 0);
  SALOME_ListIO io;
  mySelectionMgr->selectedObjects( io );
  mySelectionMgr->clearSelected();
  LineEdit1->setText("");
  LineEdit2->setText("");
  LineEdit3->setText("");
  LineEdit4->setText("");
  LineEdit5->setText("");
  LineEdit6->setText("");
  myOk1 = myOk2 = myOk3 = myOk4 = myOk5 = myOk6 = false;
  myEditCurrentArgument = LineEdit1;
  myEditCurrentArgument->setFocus();

  if (!TextLabel5->isEnabled()) {
    TextLabel5->setEnabled(true);
    SelectButton5->setEnabled(true);
    LineEdit5->setEnabled(true);
  } else if (!TextLabel6->isEnabled()) {
    TextLabel6->setEnabled(true);
    SelectButton6->setEnabled(true);
    LineEdit6->setEnabled(true);
  }

  if (constructorId == 1 || constructorId == 3) {
    if (CheckBoxPolygons->isVisible())
      CheckBoxPolygons->hide();
    if (CheckBoxPolyedrs->isVisible())
      CheckBoxPolyedrs->hide();
  }

  switch (constructorId) {
  case 0:
    {
      GroupArguments->setTitle(tr("SEW_FREE_BORDERS"));
      SubGroup1->setTitle(tr("BORDER_1"));
      SubGroup2->setTitle(tr("BORDER_2"));

        if (!CheckBoxPolygons->isVisible())
          CheckBoxPolygons->show();
        if (!CheckBoxPolyedrs->isVisible())
          CheckBoxPolyedrs->show();


      break;
    }
  case 1:
    {
      GroupArguments->setTitle(tr("SEW_CONFORM_FREE_BORDERS"));
      SubGroup1->setTitle(tr("BORDER_1"));
      SubGroup2->setTitle(tr("BORDER_2"));

      TextLabel6->setEnabled(false);
      SelectButton6->setEnabled(false);
      LineEdit6->setEnabled(false);

      myOk6 = true;

      break;
    }
  case 2:
    {
      GroupArguments->setTitle(tr("SEW_BORDER_TO_SIDE"));
      SubGroup1->setTitle(tr("BORDER"));
      SubGroup2->setTitle(tr("SIDE"));

      TextLabel5->setEnabled(false);
      SelectButton5->setEnabled(false);
      LineEdit5->setEnabled(false);

      if (!CheckBoxPolygons->isVisible())
	CheckBoxPolygons->show();
      if (!CheckBoxPolyedrs->isVisible())
	CheckBoxPolyedrs->show();
      

      myOk5 = true;

      break;
    }
  case 3:
    {
      GroupArguments->setTitle(tr("SEW_SIDE_ELEMENTS"));
      SubGroup1->setTitle(tr("SIDE_1"));
      SubGroup2->setTitle(tr("SIDE_2"));

      TextLabel1->setText(tr("SMESH_ID_ELEMENTS"));
      TextLabel2->setText(tr("NODE1_TO_MERGE"));
      TextLabel3->setText(tr("NODE2_TO_MERGE"));
      TextLabel4->setText(tr("SMESH_ID_ELEMENTS"));
      TextLabel5->setText(tr("NODE1_TO_MERGE"));
      TextLabel6->setText(tr("NODE2_TO_MERGE"));

      LineEdit1->setValidator(new SMESHGUI_IdValidator(this, "validator"));
      LineEdit4->setValidator(new SMESHGUI_IdValidator(this, "validator"));

      SMESH::SetPointRepresentation(false);

      if ( SVTK_ViewWindow* aViewWindow = SMESH::GetViewWindow( mySMESHGUI ))
	aViewWindow->SetSelectionMode(CellSelection);
      break;
    }
  }

  if (constructorId != 3) {
    TextLabel1->setText(tr("FIRST_NODE_ID"));
    TextLabel2->setText(tr("SECOND_NODE_ID"));
    TextLabel3->setText(tr("LAST_NODE_ID"));
    TextLabel4->setText(tr("FIRST_NODE_ID"));
    TextLabel5->setText(tr("SECOND_NODE_ID"));
    TextLabel6->setText(tr("LAST_NODE_ID"));

    LineEdit1->setValidator(new SMESHGUI_IdValidator(this, "validator", 1));
    LineEdit4->setValidator(new SMESHGUI_IdValidator(this, "validator", 1));

    SMESH::SetPointRepresentation(true);

    if ( SVTK_ViewWindow* aViewWindow = SMESH::GetViewWindow( mySMESHGUI ))
      aViewWindow->SetSelectionMode(NodeSelection);
  }

  connect(mySelectionMgr, SIGNAL(currentSelectionChanged()), this, SLOT(SelectionIntoArgument()));
  mySelectionMgr->setSelectedObjects( io );
}

//=================================================================================
// function : ClickOnApply()
// purpose  :
//=================================================================================
bool SMESHGUI_SewingDlg::ClickOnApply()
{
  if (mySMESHGUI->isActiveStudyLocked())
    return false;

  bool aResult = false;

  if (IsValid()) {
    bool toMerge = CheckBoxMerge->isChecked();
    bool toCreatePolygons = CheckBoxPolygons->isChecked();
    bool toCreatePolyedrs = CheckBoxPolyedrs->isChecked();

    try {
      SMESH::SMESH_MeshEditor_var aMeshEditor = myMesh->GetMeshEditor();
      QApplication::setOverrideCursor(Qt::waitCursor);

      int aConstructorId = GetConstructorId();
      SMESH::SMESH_MeshEditor::Sew_Error anError;

      if (aConstructorId == 0)
        anError = aMeshEditor->SewFreeBorders(LineEdit1->text().toLong(),
                                              LineEdit2->text().toLong(),
                                              LineEdit3->text().toLong(),
                                              LineEdit4->text().toLong(),
                                              LineEdit5->text().toLong(),
                                              LineEdit6->text().toLong(),
					      toCreatePolygons,
					      toCreatePolyedrs);
      else if (aConstructorId == 1)
        anError = aMeshEditor->SewConformFreeBorders(LineEdit1->text().toLong(),
                                                     LineEdit2->text().toLong(),
                                                     LineEdit3->text().toLong(),
                                                     LineEdit4->text().toLong(),
                                                     LineEdit5->text().toLong());
      else if (aConstructorId == 2)
        anError = aMeshEditor->SewBorderToSide(LineEdit1->text().toLong(),
                                               LineEdit2->text().toLong(),
                                               LineEdit3->text().toLong(),
                                               LineEdit4->text().toLong(),
                                               LineEdit6->text().toLong(),
					       toCreatePolygons,
					       toCreatePolyedrs);
      else if (aConstructorId == 3) {
        QStringList aListElementsId1 = QStringList::split(" ", LineEdit1->text(), false);
        QStringList aListElementsId2 = QStringList::split(" ", LineEdit4->text(), false);

        SMESH::long_array_var anElementsId1 = new SMESH::long_array;
        SMESH::long_array_var anElementsId2 = new SMESH::long_array;

        anElementsId1->length(aListElementsId1.count());
        anElementsId2->length(aListElementsId2.count());

        for (int i = 0; i < aListElementsId1.count(); i++)
          anElementsId1[i] = aListElementsId1[i].toInt();
        for (int i = 0; i < aListElementsId2.count(); i++)
          anElementsId2[i] = aListElementsId2[i].toInt();

        anError = aMeshEditor->SewSideElements(anElementsId1.inout(),
                                               anElementsId2.inout(),
                                               LineEdit2->text().toLong(),
                                               LineEdit5->text().toLong(),
                                               LineEdit3->text().toLong(),
                                               LineEdit6->text().toLong());
      }
      aResult = (anError == SMESH::SMESH_MeshEditor::SEW_OK);

      if (toMerge && aResult)
        aMeshEditor->MergeEqualElements();

      QApplication::restoreOverrideCursor();

      if (!aResult) {
        QString msg = tr(QString("ERROR_%1").arg(anError));
        SUIT_MessageBox::warn1(SMESHGUI::desktop(), tr("SMESH_WRN_WARNING"),
                               msg, tr("SMESH_BUT_OK"));
      }
    } catch (...) {
    }

    if (aResult) {
      Handle(SALOME_InteractiveObject) anIO = myActor->getIO();

      SALOME_ListIO aList;
      aList.Append(anIO);
      mySelectionMgr->setSelectedObjects(aList, false);
      SMESH::UpdateView();

      Init();
      ConstructorsClicked(GetConstructorId());
    }
  }

  return aResult;
}

//=================================================================================
// function : ClickOnOk()
// purpose  :
//=================================================================================
void SMESHGUI_SewingDlg::ClickOnOk()
{
  if (ClickOnApply())
    ClickOnCancel();
}

//=================================================================================
// function : ClickOnCancel()
// purpose  :
//=================================================================================
void SMESHGUI_SewingDlg::ClickOnCancel()
{
  //mySelectionMgr->clearSelected();
  SMESH::SetPointRepresentation(false);
  if ( SVTK_ViewWindow* aViewWindow = SMESH::GetViewWindow( mySMESHGUI ))
    aViewWindow->SetSelectionMode(ActorSelection);
  disconnect(mySelectionMgr, 0, this, 0);
  mySMESHGUI->ResetState();
  reject();
}

//=================================================================================
// function : ClickOnHelp()
// purpose  :
//=================================================================================
void SMESHGUI_SewingDlg::ClickOnHelp()
{
  LightApp_Application* app = (LightApp_Application*)(SUIT_Session::session()->activeApplication());
  if (app) 
    app->onHelpContextModule(mySMESHGUI ? app->moduleName(mySMESHGUI->moduleName()) : QString(""), myHelpFileName);
  else {
		QString platform;
#ifdef WIN32
		platform = "winapplication";
#else
		platform = "application";
#endif
    SUIT_MessageBox::warn1(0, QObject::tr("WRN_WARNING"),
			   QObject::tr("EXTERNAL_BROWSER_CANNOT_SHOW_PAGE").
			   arg(app->resourceMgr()->stringValue("ExternalBrowser", platform)).arg(myHelpFileName),
			   QObject::tr("BUT_OK"));
  }
}

//=======================================================================
//function : onTextChange
//purpose  :
//=======================================================================
void SMESHGUI_SewingDlg::onTextChange (const QString& theNewText)
{
  QLineEdit* send = (QLineEdit*)sender();

  if (myBusy) return;
  myBusy = true;

  if (send)
    myEditCurrentArgument = send;

  if      (send == LineEdit1)
    myOk1 = false;
  else if (send == LineEdit2)
    myOk2 = false;
  else if (send == LineEdit3)
    myOk3 = false;
  else if (send == LineEdit4)
    myOk4 = false;
  else if (send == LineEdit5)
    myOk5 = false;
  else if (send == LineEdit6)
    myOk6 = false;

  buttonOk->setEnabled(false);
  buttonApply->setEnabled(false);

  // hilight entered elements/nodes
  SMDS_Mesh* aMesh = 0;

  if (myActor)
    aMesh = myActor->GetObject()->GetMesh();
  else
    send->clear();

  if (aMesh) {
    TColStd_MapOfInteger newIndices;
    
    if (GetConstructorId() != 3 || (send != LineEdit1 && send != LineEdit4)) {
      SMESH::SetPointRepresentation(true);

      if ( SVTK_ViewWindow* aViewWindow = SMESH::GetViewWindow( mySMESHGUI ))
	aViewWindow->SetSelectionMode(NodeSelection);

      const SMDS_MeshNode * n = aMesh->FindNode(theNewText.toInt());
      if (n) {
	newIndices.Add(n->GetID());
	mySelector->AddOrRemoveIndex(myActor->getIO(), newIndices, false);
	if ( SVTK_ViewWindow* aViewWindow = SMESH::GetViewWindow( mySMESHGUI ))
	  aViewWindow->highlight( myActor->getIO(), true, true );
	
        if      (send == LineEdit1)
          myOk1 = true;
        else if (send == LineEdit2)
          myOk2 = true;
        else if (send == LineEdit3)
          myOk3 = true;
        else if (send == LineEdit4)
          myOk4 = true;
        else if (send == LineEdit5)
          myOk5 = true;
        else if (send == LineEdit6)
          myOk6 = true;
      }
    } else {
      SMESH::SetPointRepresentation(false);

      if ( SVTK_ViewWindow* aViewWindow = SMESH::GetViewWindow( mySMESHGUI ))
	aViewWindow->SetSelectionMode(CellSelection);

      QStringList aListId = QStringList::split(" ", theNewText, false);

      bool isEvenOneExists = false;

      for (int i = 0; i < aListId.count(); i++) {
        const SMDS_MeshElement * e = aMesh->FindElement(aListId[ i ].toInt());
        if (e) 
	  newIndices.Add(e->GetID());
	
          if (!isEvenOneExists)
            isEvenOneExists = true;
      }
      

      mySelector->AddOrRemoveIndex(myActor->getIO(), newIndices, false);
      if ( SVTK_ViewWindow* aViewWindow = SMESH::GetViewWindow( mySMESHGUI ))
	aViewWindow->highlight( myActor->getIO(), true, true );
      
      if (isEvenOneExists) {
        if (send == LineEdit1)
          myOk1 = true;
        else if(send == LineEdit4)
          myOk4 = true;
      } else {
        send->clear();
      }
    }
  }

  if (IsValid()) {
    buttonOk->setEnabled(true);
    buttonApply->setEnabled(true);
  }

  myBusy = false;
}

//=================================================================================
// function : SelectionIntoArgument()
// purpose  : Called when selection as changed or other case
//=================================================================================
void SMESHGUI_SewingDlg::SelectionIntoArgument (bool isSelectionChanged)
{
  if (myBusy) return;

  // clear
  if (isSelectionChanged)
    myActor = 0;

  QString aString = "";

  myBusy = true;
  myEditCurrentArgument->setText(aString);
  myBusy = false;

  if (!GroupButtons->isEnabled()) // inactive
    return;

  buttonOk->setEnabled(false);
  buttonApply->setEnabled(false);

  // get selected mesh
  SALOME_ListIO aList;
  mySelectionMgr->selectedObjects(aList,SVTK_Viewer::Type());

  int nbSel = aList.Extent();
  if (nbSel != 1)
    return;

  Handle(SALOME_InteractiveObject) IO = aList.First();
  myMesh = SMESH::GetMeshByIO(IO); //@ SMESH::IObjectToInterface<SMESH::SMESH_Mesh>(IO);
  myActor = SMESH::FindActorByEntry(aList.First()->getEntry());

  if (myMesh->_is_nil() || !myActor)
    return;

  // get selected elements/nodes
  int aNbUnits = 0;

  if (GetConstructorId() != 3 ||
      (myEditCurrentArgument != LineEdit1 && myEditCurrentArgument != LineEdit4)) {
    aNbUnits = SMESH::GetNameOfSelectedNodes(mySelector, IO, aString);
    if (aNbUnits != 1)
      return;
  } else {
    aNbUnits = SMESH::GetNameOfSelectedElements(mySelector, IO, aString);
    if (aNbUnits < 1)
      return;
  }

  myBusy = true;
  myEditCurrentArgument->setText(aString);
  myBusy = false;

  // OK
  if (myEditCurrentArgument == LineEdit1)
    myOk1 = true;
  else if (myEditCurrentArgument == LineEdit2)
    myOk2 = true;
  else if (myEditCurrentArgument == LineEdit3)
    myOk3 = true;
  else if (myEditCurrentArgument == LineEdit4)
    myOk4 = true;
  else if (myEditCurrentArgument == LineEdit5)
    myOk5 = true;
  else if (myEditCurrentArgument == LineEdit6)
    myOk6 = true;

  if (IsValid()) {
    buttonOk->setEnabled(true);
    buttonApply->setEnabled(true);
  }
}

//=================================================================================
// function : SetEditCurrentArgument()
// purpose  :
//=================================================================================
void SMESHGUI_SewingDlg::SetEditCurrentArgument()
{
  QPushButton* send = (QPushButton*)sender();

  disconnect(mySelectionMgr, 0, this, 0);
  mySelectionMgr->clearSelected();

  if (send == SelectButton1) {
    myEditCurrentArgument = LineEdit1;
    myOk1 = false;
  }
  else if (send == SelectButton2) {
    myEditCurrentArgument = LineEdit2;
    myOk2 = false;
  }
  else if (send == SelectButton3) {
    myEditCurrentArgument = LineEdit3;
    myOk3 = false;
  }
  else if (send == SelectButton4) {
    myEditCurrentArgument = LineEdit4;
    myOk4 = false;
  }
  else if (send == SelectButton5) {
    myEditCurrentArgument = LineEdit5;
    myOk5 = false;
  }
  else if (send == SelectButton6) {
    myEditCurrentArgument = LineEdit6;
    myOk6 = false;
  }

  if (GetConstructorId() != 3 || (send != SelectButton1 && send != SelectButton4)) {
    SMESH::SetPointRepresentation(true);

    if ( SVTK_ViewWindow* aViewWindow = SMESH::GetViewWindow( mySMESHGUI ))
      aViewWindow->SetSelectionMode(NodeSelection);

  } else {
    SMESH::SetPointRepresentation(false);
    if ( SVTK_ViewWindow* aViewWindow = SMESH::GetViewWindow( mySMESHGUI ))
      aViewWindow->SetSelectionMode(CellSelection);
  }

  myEditCurrentArgument->setFocus();
  connect(mySelectionMgr, SIGNAL(currentSelectionChanged()), this, SLOT(SelectionIntoArgument()));
  SelectionIntoArgument(false);
}

//=================================================================================
// function : DeactivateActiveDialog()
// purpose  :
//=================================================================================
void SMESHGUI_SewingDlg::DeactivateActiveDialog()
{
  if (GroupConstructors->isEnabled()) {
    GroupConstructors->setEnabled(false);
    GroupArguments->setEnabled(false);
    GroupButtons->setEnabled(false);
    mySMESHGUI->ResetState();
    mySMESHGUI->SetActiveDialogBox(0);
  }
}

//=================================================================================
// function : ActivateThisDialog()
// purpose  :
//=================================================================================
void SMESHGUI_SewingDlg::ActivateThisDialog()
{
  /* Emit a signal to deactivate the active dialog */
  mySMESHGUI->EmitSignalDeactivateDialog();
  GroupConstructors->setEnabled(true);
  GroupArguments->setEnabled(true);
  GroupButtons->setEnabled(true);

  mySMESHGUI->SetActiveDialogBox((QDialog*)this);

  ConstructorsClicked(GetConstructorId());
  SelectionIntoArgument();
}

//=================================================================================
// function : enterEvent()
// purpose  :
//=================================================================================
void SMESHGUI_SewingDlg::enterEvent (QEvent* e)
{
  if (!GroupConstructors->isEnabled())
    ActivateThisDialog();
}

//=================================================================================
// function : closeEvent()
// purpose  :
//=================================================================================
void SMESHGUI_SewingDlg::closeEvent (QCloseEvent*)
{
  /* same than click on cancel button */
  this->ClickOnCancel();
}

//=======================================================================
//function : hideEvent
//purpose  : caused by ESC key
//=======================================================================
void SMESHGUI_SewingDlg::hideEvent (QHideEvent*)
{
  if (!isMinimized())
    ClickOnCancel();
}

//=================================================================================
// function : GetConstructorId()
// purpose  :
//=================================================================================
int SMESHGUI_SewingDlg::GetConstructorId()
{
  if (GroupConstructors != NULL && GroupConstructors->selected() != NULL)
    return GroupConstructors->id(GroupConstructors->selected());
  return -1;
}

//=================================================================================
// function : GetConstructorId()
// purpose  :
//=================================================================================
bool SMESHGUI_SewingDlg::IsValid()
{
  return (myOk1 && myOk2 && myOk3 && myOk4 && myOk5 && myOk6);
}

//=================================================================================
// function : keyPressEvent()
// purpose  :
//=================================================================================
void SMESHGUI_SewingDlg::keyPressEvent( QKeyEvent* e )
{
  QDialog::keyPressEvent( e );
  if ( e->isAccepted() )
    return;

  if ( e->key() == Key_F1 )
    {
      e->accept();
      ClickOnHelp();
    }
}