//  SMESH SMESHGUI : GUI for SMESH component
//
//  Copyright (C) 2003  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.opencascade.org/SALOME/ or email : webmaster.salome@opencascade.org 
//
//
//
//  File   : SMESHGUI_InitMeshDlg.cxx
//  Author : Nicolas REJNERI
//  Module : SMESH
//  $Header$

using namespace std;
#include "SMESHGUI_InitMeshDlg.h"
#include "SMESHGUI.h"
#include "SALOME_ListIteratorOfListIO.hxx"

#include "QAD_Application.h"
#include "QAD_Desktop.h"
#include "utilities.h"

// QT Includes
#include <qbuttongroup.h>
#include <qgroupbox.h>
#include <qlabel.h>
#include <qlineedit.h>
#include <qpushbutton.h>
#include <qradiobutton.h>
#include <qlayout.h>
#include <qvariant.h>
#include <qtooltip.h>
#include <qwhatsthis.h>
#include <qimage.h>
#include <qpixmap.h>


//=================================================================================
// class    : SMESHGUI_InitMeshDlg()
// purpose  : Constructs a SMESHGUI_InitMeshDlg which is a child of 'parent', with the 
//            name 'name' and widget flags set to 'f'.
//            The dialog will by default be modeless, unless you set 'modal' to
//            TRUE to construct a modal dialog.
//=================================================================================
SMESHGUI_InitMeshDlg::SMESHGUI_InitMeshDlg( QWidget* parent, const char* name, SALOME_Selection* Sel, bool modal, WFlags fl )
    : QDialog( parent, name, modal, WStyle_Customize | WStyle_NormalBorder | WStyle_Title | WStyle_SysMenu  )
{
    QPixmap image1(QAD_Desktop::getResourceManager()->loadPixmap( "SMESH",tr("ICON_DLG_INIT_MESH")));
    QPixmap image0(QAD_Desktop::getResourceManager()->loadPixmap( "SMESH",tr("ICON_SELECT")));
    if ( !name )
	setName( "SMESHGUI_InitMeshDlg" );
    resize( 303, 175 ); 
    setCaption( tr( "SMESH_INIT_MESH"  ) );
    setSizeGripEnabled( TRUE );
    SMESHGUI_InitMeshDlgLayout = new QGridLayout( this ); 
    SMESHGUI_InitMeshDlgLayout->setSpacing( 6 );
    SMESHGUI_InitMeshDlgLayout->setMargin( 11 );
    
    /***************************************************************/
    GroupConstructors = new QButtonGroup( this, "GroupConstructors" );
    GroupConstructors->setTitle( tr( "SMESH_INIT"  ) );
    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 );
    Constructor1 = new QRadioButton( GroupConstructors, "Constructor1" );
    Constructor1->setText( tr( ""  ) );
    Constructor1->setPixmap( image1 );
    Constructor1->setChecked( TRUE );
    Constructor1->setSizePolicy( QSizePolicy( (QSizePolicy::SizeType)1, (QSizePolicy::SizeType)0, Constructor1->sizePolicy().hasHeightForWidth() ) );
    Constructor1->setMinimumSize( QSize( 50, 0 ) );
    GroupConstructorsLayout->addWidget( Constructor1, 0, 0 );
    QSpacerItem* spacer = new QSpacerItem( 20, 20, QSizePolicy::Expanding, QSizePolicy::Minimum );
    GroupConstructorsLayout->addItem( spacer, 0, 1 );
    SMESHGUI_InitMeshDlgLayout->addWidget( GroupConstructors, 0, 0 );
    
    /***************************************************************/
    GroupButtons = new QGroupBox( this, "GroupButtons" );
    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 );
    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_OK"  ) );
    buttonOk->setAutoDefault( TRUE );
    buttonOk->setDefault( TRUE );
    GroupButtonsLayout->addWidget( buttonOk, 0, 0 );
    SMESHGUI_InitMeshDlgLayout->addWidget( GroupButtons, 2, 0 );

    /***************************************************************/
    GroupC1 = new QGroupBox( this, "GroupC1" );
    GroupC1->setTitle( tr( "SMESH_ARGUMENTS"  ) );
    GroupC1->setMinimumSize( QSize( 0, 0 ) );
    GroupC1->setFrameShape( QGroupBox::Box );
    GroupC1->setFrameShadow( QGroupBox::Sunken );
    GroupC1->setColumnLayout(0, Qt::Vertical );
    GroupC1->layout()->setSpacing( 0 );
    GroupC1->layout()->setMargin( 0 );
    GroupC1Layout = new QGridLayout( GroupC1->layout() );
    GroupC1Layout->setAlignment( Qt::AlignTop );
    GroupC1Layout->setSpacing( 6 );
    GroupC1Layout->setMargin( 11 );

    TextLabelC1A1 = new QLabel( GroupC1, "TextLabelC1A1" );
    TextLabelC1A1->setText( tr( "SMESH_OBJECT_GEOM"  ) );
    TextLabelC1A1->setMinimumSize( QSize( 50, 0 ) );
    TextLabelC1A1->setFrameShape( QLabel::NoFrame );
    TextLabelC1A1->setFrameShadow( QLabel::Plain );
    GroupC1Layout->addWidget( TextLabelC1A1, 0, 0 );
    SelectButtonC1A1 = new QPushButton( GroupC1, "SelectButtonC1A1" );
    SelectButtonC1A1->setText( tr( ""  ) );
    SelectButtonC1A1->setPixmap( image0 );
    SelectButtonC1A1->setToggleButton( FALSE );
    GroupC1Layout->addWidget( SelectButtonC1A1, 0, 1 );
    LineEditC1A1 = new QLineEdit( GroupC1, "LineEditC1A1" );
    GroupC1Layout->addWidget( LineEditC1A1, 0, 2 );

    TextLabel_NameMesh = new QLabel( GroupC1, "TextLabel_NameMesh" );
    TextLabel_NameMesh->setText( tr( "SMESH_NAME"  ) );
    GroupC1Layout->addWidget( TextLabel_NameMesh, 1, 0 );
    LineEdit_NameMesh = new QLineEdit( GroupC1, "LineEdit_NameMesh" );
    GroupC1Layout->addWidget( LineEdit_NameMesh, 1, 2 );

    TextLabelC1A1Hyp = new QLabel( GroupC1, "TextLabelC1A1Hyp" );
    TextLabelC1A1Hyp->setText( tr( "SMESH_OBJECT_HYPOTHESIS" ) );
    TextLabelC1A1Hyp->setMinimumSize( QSize( 50, 0 ) );
    TextLabelC1A1Hyp->setFrameShape( QLabel::NoFrame );
    TextLabelC1A1Hyp->setFrameShadow( QLabel::Plain );
    GroupC1Layout->addWidget( TextLabelC1A1Hyp, 2, 0 );
    SelectButtonC1A1Hyp = new QPushButton( GroupC1, "SelectButtonC1A1Hyp" );
    SelectButtonC1A1Hyp->setText( tr( ""  ) );
    SelectButtonC1A1Hyp->setPixmap( image0 );
    GroupC1Layout->addWidget( SelectButtonC1A1Hyp, 2, 1 );
    LineEditC1A1Hyp = new QLineEdit( GroupC1, "LineEditC1A1Hyp" );
    LineEditC1A1Hyp->setSizePolicy( QSizePolicy( (QSizePolicy::SizeType)3, (QSizePolicy::SizeType)0, LineEditC1A1Hyp->sizePolicy().hasHeightForWidth() ) );
    GroupC1Layout->addWidget( LineEditC1A1Hyp, 2, 2 );

    TextLabelC1A1Algo = new QLabel( GroupC1, "TextLabelC1A1Algo" );
    TextLabelC1A1Algo->setText( tr( "SMESH_OBJECT_ALGORITHM" ) );
    TextLabelC1A1Algo->setMinimumSize( QSize( 50, 0 ) );
    TextLabelC1A1Algo->setFrameShape( QLabel::NoFrame );
    TextLabelC1A1Algo->setFrameShadow( QLabel::Plain );
    GroupC1Layout->addWidget( TextLabelC1A1Algo, 3, 0 );
    SelectButtonC1A1Algo = new QPushButton( GroupC1, "SelectButtonC1A1Algo" );
    SelectButtonC1A1Algo->setText( tr( ""  ) );
    SelectButtonC1A1Algo->setPixmap( image0 );
    GroupC1Layout->addWidget( SelectButtonC1A1Algo, 3, 1 );
    LineEditC1A1Algo = new QLineEdit( GroupC1, "LineEditC1A1Algo" );
    LineEditC1A1Algo->setSizePolicy( QSizePolicy( (QSizePolicy::SizeType)3, (QSizePolicy::SizeType)0, LineEditC1A1Algo->sizePolicy().hasHeightForWidth() ) );
    GroupC1Layout->addWidget( LineEditC1A1Algo, 3, 2 );

    SMESHGUI_InitMeshDlgLayout->addWidget( GroupC1, 1, 0 );
    /***************************************************************/

    Init(Sel) ;
}


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


//=================================================================================
// function : Init()
// purpose  :
//=================================================================================
void SMESHGUI_InitMeshDlg::Init( SALOME_Selection* Sel )
{
  GroupC1->show();
  myConstructorId = 0 ;
  Constructor1->setChecked( TRUE );
  myEditCurrentArgument = LineEditC1A1 ;	
  mySelection = Sel;
  mySMESHGUI = SMESHGUI::GetSMESHGUI() ;
  mySMESHGUI->SetActiveDialogBox( (QDialog*)this ) ;

  myGeomFilter = new SALOME_TypeFilter( "GEOM" );
  myAlgorithmFilter = new SMESH_TypeFilter( ALGORITHM );
  myHypothesisFilter = new SMESH_TypeFilter( HYPOTHESIS );

  myNameMesh = "Mesh";

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

  connect( SelectButtonC1A1, SIGNAL (clicked() ),   this, SLOT( SetEditCurrentArgument() ) ) ;
  connect( LineEdit_NameMesh, SIGNAL (textChanged(const QString&)  ), this, SLOT( TextChangedInLineEdit(const QString&) ) ) ;

  connect( SelectButtonC1A1Hyp, SIGNAL (clicked() ),  this, SLOT( SetEditCurrentArgument() ) ) ;
  connect( SelectButtonC1A1Algo, SIGNAL (clicked() ),  this, SLOT( SetEditCurrentArgument() ) ) ;

  connect( mySelection, SIGNAL( currentSelectionChanged() ),     this, SLOT( SelectionIntoArgument() ) );
  connect( mySMESHGUI, SIGNAL ( SignalDeactivateActiveDialog() ), this, SLOT( DeactivateActiveDialog() ) ) ;
  connect( mySMESHGUI, SIGNAL ( SignalCloseAllDialogs() ), this, SLOT( ClickOnCancel() ) ) ;
  
  int x, y ;
  mySMESHGUI->DefineDlgPosition( this, x, y ) ;
  this->move( x, y ) ;
  this->show() ; 

  return ;
}


//=================================================================================
// function : ConstructorsClicked()
// purpose  : Radio button management
//=================================================================================
void SMESHGUI_InitMeshDlg::ConstructorsClicked(int constructorId)
{
  return ;
}

//=================================================================================
// function : ClickOnOk()
// purpose  :
//=================================================================================
void SMESHGUI_InitMeshDlg::ClickOnOk()
{
  this->ClickOnApply() ;
  this->ClickOnCancel() ;

  return ;
}

//=================================================================================
// function : ClickOnApply()
// purpose  :
//=================================================================================
void SMESHGUI_InitMeshDlg::ClickOnApply()
{
  switch(myConstructorId)
    { 
    case 0 :
      { 
	MESSAGE ( " myNameMesh " << myNameMesh.isEmpty() )
	MESSAGE ( " myGeomShape " << myGeomShape->_is_nil() )
	if ( !myNameMesh.isEmpty() && !myNameMesh.isNull() && !myGeomShape->_is_nil() )
	  myMesh = mySMESHGUI->InitMesh( myGeomShape, myNameMesh ) ;
	
	MESSAGE ( " myMesh " << myMesh->_is_nil() ) 
	MESSAGE ( " myOkHypothesis " )
	MESSAGE ( " myOkAlgorithm " )
	if( myOkHypothesis && !myMesh->_is_nil() ) {
	  SALOME_ListIteratorOfListIO It( HypoList );
	  for(;It.More();It.Next()) {
	    Handle(SALOME_InteractiveObject) IObject = It.Value();
	    Standard_Boolean testResult;
	    myHypothesis = mySMESHGUI->ConvertIOinSMESHHypothesis(IObject, testResult) ;
	    if( testResult )
	      mySMESHGUI->AddHypothesisOnMesh(myMesh, myHypothesis) ;
	  }
	}

	if( myOkAlgorithm && !myMesh->_is_nil() ) {
	  SALOME_ListIteratorOfListIO It( AlgoList );
	  for(;It.More();It.Next()) {
	    Handle(SALOME_InteractiveObject) IObject = It.Value();
	    Standard_Boolean testResult;
	    myAlgorithm = mySMESHGUI->ConvertIOinSMESHHypothesis(IObject, testResult) ;
	    if( testResult )
	      mySMESHGUI->AddAlgorithmOnMesh(myMesh, myAlgorithm) ;
	  }
	}
	break ;
      }
    }
}


//=================================================================================
// function : ClickOnCancel()
// purpose  :
//=================================================================================
void SMESHGUI_InitMeshDlg::ClickOnCancel()
{
  mySelection->ClearFilters() ;
  disconnect( mySelection, 0, this, 0 );
  mySMESHGUI->ResetState() ;
  reject() ;
  return ;
}


//=================================================================================
// function : SelectionIntoArgument()
// purpose  : Called when selection as changed or other case
//=================================================================================
void SMESHGUI_InitMeshDlg::SelectionIntoArgument()
{
  myEditCurrentArgument->setText("") ;
  QString aString = ""; 
  int nbSel = mySMESHGUI->GetNameOfSelectedIObjects(mySelection, aString) ;
  if ( myEditCurrentArgument == LineEditC1A1 ) {
    if ( nbSel != 1 ) {
      myOkHypothesis = false;
      myOkAlgorithm = false;
      myGeomShape = GEOM::GEOM_Shape::_nil();
      return ;
    } else {
      Standard_Boolean testResult ;
      Handle(SALOME_InteractiveObject) IO = mySelection->firstIObject() ;
      myGeomShape = mySMESHGUI->ConvertIOinGEOMShape(IO, testResult) ;
      if( !testResult )  {
	myOkHypothesis = false;
	myOkAlgorithm = false;
	return ;
      }
    }
  }
  else if ( myEditCurrentArgument == LineEditC1A1Hyp ) {
    if ( nbSel >= 1 ) {
      HypoList.Clear();
      SALOME_ListIteratorOfListIO Itinit( mySelection->StoredIObjects() );
      for (; Itinit.More(); Itinit.Next()) {
	HypoList.Append(Itinit.Value());
      }
      myOkHypothesis = true ;
      if (nbSel > 1)
	aString = tr("%1 Hypothesis").arg(nbSel) ;
      LineEditC1A1Hyp->setText(aString) ;
    }
    else {
      myOkHypothesis = false ;
      return ;
    }
  } else if ( myEditCurrentArgument == LineEditC1A1Algo ) {
    if ( nbSel >= 1 ) {
      AlgoList.Clear(); 
      SALOME_ListIteratorOfListIO Itinit( mySelection->StoredIObjects() );
      for (; Itinit.More(); Itinit.Next()) {
	AlgoList.Append(Itinit.Value());
      }
      myOkAlgorithm = true ;
      if (nbSel > 1)
	aString = tr("%1 Algorithms").arg(nbSel) ;
      LineEditC1A1Algo->setText(aString) ;
    }
    else {
      myOkAlgorithm = false ;
      return ;
    }
  }

  myEditCurrentArgument->setText(aString) ;
}


//=================================================================================
// function : SetEditCurrentArgument()
// purpose  :
//=================================================================================
void SMESHGUI_InitMeshDlg::SetEditCurrentArgument()
{
  QPushButton* send = (QPushButton*)sender();
  switch (myConstructorId)
    {
    case 0: /* default constructor */
      {	
	if(send == SelectButtonC1A1) {
	  LineEditC1A1->setFocus() ;
	  myEditCurrentArgument = LineEditC1A1;
	  mySelection->ClearFilters() ;	  
	  mySelection->AddFilter(myGeomFilter) ;
	} else if( send == SelectButtonC1A1Hyp ) {
	  LineEditC1A1Hyp->setFocus() ;
	  myEditCurrentArgument = LineEditC1A1Hyp ;
	  mySelection->ClearFilters() ;	  
	  mySelection->AddFilter(myHypothesisFilter) ;
	} else if( send == SelectButtonC1A1Algo ) {
	  LineEditC1A1Algo->setFocus() ;
	  myEditCurrentArgument = LineEditC1A1Algo ;
	  mySelection->ClearFilters() ;	  
	  mySelection->AddFilter(myAlgorithmFilter) ;
	}
	SelectionIntoArgument() ;
	break;
      }
    }
  return ;
}

//=================================================================================
// function : DeactivateActiveDialog()
// purpose  :
//=================================================================================
void SMESHGUI_InitMeshDlg::DeactivateActiveDialog()
{
  if ( GroupConstructors->isEnabled() ) {
    disconnect( mySelection, 0, this, 0 );
    GroupConstructors->setEnabled(false) ;
    GroupC1->setEnabled(false) ;
    GroupButtons->setEnabled(false) ;
  }
}


//=================================================================================
// function : ActivateThisDialog()
// purpose  :
//=================================================================================
void SMESHGUI_InitMeshDlg::ActivateThisDialog()
{
  mySMESHGUI->EmitSignalDeactivateDialog() ;   
  GroupConstructors->setEnabled(true) ;
  GroupC1->setEnabled(true) ;
  GroupButtons->setEnabled(true) ;
  connect ( mySelection, SIGNAL( currentSelectionChanged() ), this, SLOT( SelectionIntoArgument() ) );
  return ;
}


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


//=================================================================================
// function : closeEvent()
// purpose  :
//=================================================================================
void SMESHGUI_InitMeshDlg::closeEvent( QCloseEvent* e )
{
  this->ClickOnCancel() ;
  return ;
}

//=================================================================================
// function : TextChangedInLineEdit()
// purpose  :
//=================================================================================
void SMESHGUI_InitMeshDlg::TextChangedInLineEdit(const QString& newText)
{  
  QLineEdit* send = (QLineEdit*)sender();
  QString newT = strdup(newText) ;
  
  if (send == LineEdit_NameMesh) {
    myNameMesh = newText;
  }
  return ;
}