//  GEOM GEOMGUI : GUI for Geometry 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   : GeometryGUI_MirrorDlg.cxx
//  Author : Lucien PIGNOLONI
//  Module : GEOM
//  $Header$

using namespace std;
#include "GeometryGUI_MirrorDlg.h"

#include "GeometryGUI.h"

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

#include <Geom_Plane.hxx>
#include <BRep_Tool.hxx>

#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    : GeometryGUI_MirrorDlg()
// purpose  : Constructs a GeometryGUI_MirrorDlg 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.
//=================================================================================
GeometryGUI_MirrorDlg::GeometryGUI_MirrorDlg( 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 image0(QAD_Desktop::getResourceManager()->loadPixmap( "GeometryGUI",tr("ICON_DLG_MIRROR")));
    QPixmap image1(QAD_Desktop::getResourceManager()->loadPixmap( "GeometryGUI",tr("ICON_SELECT")));

    if ( !name )
	setName( "GeometryGUI_MirrorDlg" );
    resize( 303, 225 ); 
    setCaption( tr( "GEOM_MIRROR_TITLE"  ) );
    setSizeGripEnabled( TRUE );
    GeometryGUI_MirrorDlgLayout = new QGridLayout( this ); 
    GeometryGUI_MirrorDlgLayout->setSpacing( 6 );
    GeometryGUI_MirrorDlgLayout->setMargin( 11 );

    /***************************************************************/
    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( "GEOM_BUT_CLOSE"  ) );
    buttonCancel->setAutoDefault( TRUE );
    GroupButtonsLayout->addWidget( buttonCancel, 0, 3 );
    buttonApply = new QPushButton( GroupButtons, "buttonApply" );
    buttonApply->setText( tr( "GEOM_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( "GEOM_BUT_OK"  ) );
    buttonOk->setAutoDefault( TRUE );
    buttonOk->setDefault( TRUE );
    GroupButtonsLayout->addWidget( buttonOk, 0, 0 );

    GeometryGUI_MirrorDlgLayout->addWidget( GroupButtons, 2, 0 );

    GroupConstructors = new QButtonGroup( this, "GroupConstructors" );
    GroupConstructors->setTitle( tr( "GEOM_MIRROR"  ) );
    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 );
    QSpacerItem* spacer_2 = new QSpacerItem( 20, 20, QSizePolicy::Expanding, QSizePolicy::Minimum );
    GroupConstructorsLayout->addItem( spacer_2, 0, 1 );
    Constructor1 = new QRadioButton( GroupConstructors, "Constructor1" );
    Constructor1->setText( tr( ""  ) );
    Constructor1->setPixmap( image0 );
    Constructor1->setChecked( TRUE );
    Constructor1->setSizePolicy( QSizePolicy( (QSizePolicy::SizeType)3, (QSizePolicy::SizeType)0, Constructor1->sizePolicy().hasHeightForWidth() ) );
    Constructor1->setMinimumSize( QSize( 50, 0 ) );
    GroupConstructorsLayout->addWidget( Constructor1, 0, 0 );
    GeometryGUI_MirrorDlgLayout->addWidget( GroupConstructors, 0, 0 );

    /***************************************************************/   
    GroupC1 = new QGroupBox( this, "GroupC1" );
    GroupC1->setTitle( tr( "GEOM_ARGUMENTS"  ) );
    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( "GEOM_OBJECT"  ) );
    TextLabelC1A1->setMinimumSize( QSize( 50, 0 ) );
    TextLabelC1A1->setFrameShape( QLabel::NoFrame );
    TextLabelC1A1->setFrameShadow( QLabel::Plain );
    GroupC1Layout->addWidget( TextLabelC1A1, 0, 0 );
    TextLabelC1A2 = new QLabel( GroupC1, "TextLabelC1A2" );
    TextLabelC1A2->setText( tr( "GEOM_PLANE_MIRROR"  ) );
    TextLabelC1A2->setMinimumSize( QSize( 50, 0 ) );
    TextLabelC1A2->setFrameShape( QLabel::NoFrame );
    TextLabelC1A2->setFrameShadow( QLabel::Plain );
    GroupC1Layout->addWidget( TextLabelC1A2, 1, 0 );
    SelectButtonC1A1 = new QPushButton( GroupC1, "SelectButtonC1A1" );
    SelectButtonC1A1->setText( tr( ""  ) );
    SelectButtonC1A1->setPixmap( image1 );
    GroupC1Layout->addWidget( SelectButtonC1A1, 0, 1 );
    SelectButtonC1A2 = new QPushButton( GroupC1, "SelectButtonC1A2" );
    SelectButtonC1A2->setText( tr( ""  ) );
    SelectButtonC1A2->setPixmap( image1 );
    GroupC1Layout->addWidget( SelectButtonC1A2, 1, 1 );
    LineEditC1A1 = new QLineEdit( GroupC1, "LineEditC1A1" );
    LineEditC1A1->setSizePolicy( QSizePolicy( (QSizePolicy::SizeType)3, (QSizePolicy::SizeType)0, LineEditC1A1->sizePolicy().hasHeightForWidth() ) );
    GroupC1Layout->addWidget( LineEditC1A1, 0, 2 );
    LineEditC1A2 = new QLineEdit( GroupC1, "LineEditC1A2" );
    GroupC1Layout->addWidget( LineEditC1A2, 1, 2 );
    GeometryGUI_MirrorDlgLayout->addWidget( GroupC1, 1, 0 );

    /* Initialisation */
    Init( Sel ) ;
}


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



//=================================================================================
// function : Init()
// purpose  :
//=================================================================================
void GeometryGUI_MirrorDlg::Init( SALOME_Selection* Sel )
{  
  mySelection = Sel ;
  myShape1.Nullify() ;
  myShape2.Nullify() ;
  mySimulationTopoDs.Nullify() ;
  myConstructorId = 0 ;
  
  myGeomGUI = GeometryGUI::GetGeometryGUI() ;
  GroupC1->show();

  myEditCurrentArgument = LineEditC1A1 ;	
  Constructor1->setChecked( TRUE );
  myOkShape1 = myOkShape2 = false ;

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

  Engines::Component_var comp = QAD_Application::getDesktop()->getEngine("FactoryServer", "Geometry");
  myGeom = GEOM::GEOM_Gen::_narrow(comp);  
  /* Filter definition */
  
  myFaceFilter = new GEOM_FaceFilter( StdSelect_Plane, myGeom );

  // TODO previous selection into argument ?

  /* 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( GroupConstructors, SIGNAL(clicked(int) ), SLOT( ConstructorsClicked(int) ) );
  connect( SelectButtonC1A1, SIGNAL (clicked() ),  this, SLOT( SetEditCurrentArgument() ) ) ;
  connect( SelectButtonC1A2, SIGNAL (clicked() ),  this, SLOT( SetEditCurrentArgument() ) ) ;

  connect( LineEditC1A1, SIGNAL ( returnPressed() ), this, SLOT( LineEditReturnPressed() ) ) ;
  connect( LineEditC1A2, SIGNAL ( returnPressed() ), this, SLOT( LineEditReturnPressed() ) ) ;

  connect( mySelection, SIGNAL( currentSelectionChanged() ),     this, SLOT( SelectionIntoArgument() ) );
  connect( myGeomGUI, SIGNAL ( SignalDeactivateActiveDialog() ), this, SLOT( DeactivateActiveDialog() ) ) ;
  /* to close dialog if study change */
  connect( myGeomGUI, SIGNAL ( SignalCloseAllDialogs() ), this, SLOT( ClickOnCancel() ) ) ;
 
  /* Move widget on the botton right corner of main widget */
  int x, y ;
  myGeomGUI->DefineDlgPosition( this, x, y ) ;
  this->move( x, y ) ;
  this->show() ; /* Displays Dialog */ 

  return ;
}



//=================================================================================
// function : ConstructorsClicked()
// purpose  : Radio button management
//=================================================================================
void GeometryGUI_MirrorDlg::ConstructorsClicked(int constructorId)
{
  GeometryGUI::GetGeometryGUI()->EraseSimulationShape() ;

  switch (constructorId)
    {
    case 0:
      {
	GroupC1->show();
	myConstructorId = constructorId ;
	myEditCurrentArgument = LineEditC1A1 ;
	LineEditC1A2->setText(tr("")) ;
	Constructor1->setChecked( TRUE );
	myOkShape1 =  myOkShape2 = false ;
	break;
      }
    }
 return ;
}

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

  return ;
}

//=================================================================================
// function : ClickOnApply()
// purpose  :
//=================================================================================
void GeometryGUI_MirrorDlg::ClickOnApply()
{
  myGeomGUI->GetDesktop()->putInfo( tr("") ) ; 
  switch(myConstructorId)
    { 
    case 0 :
      {
	if(myOkShape1 && myOkShape2) {
	   myGeomGUI->MakeMirrorAndDisplay(myGeomShape1 ,myGeomShape2 ) ;
	}
	break ;
      }
    }
  // accept();
  return ;
}


//=================================================================================
// function : ClickOnCancel()
// purpose  :
//=================================================================================
void GeometryGUI_MirrorDlg::ClickOnCancel()
{
  mySelection->ClearFilters() ;
  myGeomGUI->EraseSimulationShape() ;
  mySimulationTopoDs.Nullify() ;
  disconnect( mySelection, 0, this, 0 );
  myGeomGUI->ResetState() ;
  reject() ;
  return ;
}



//=================================================================================
// function : SelectionIntoArgument()
// purpose  : Called when selection has changed
//=================================================================================
void GeometryGUI_MirrorDlg::SelectionIntoArgument()
{
  myEditCurrentArgument->setText("") ;
  myGeomGUI->EraseSimulationShape() ; 
  mySimulationTopoDs.Nullify() ;

  QString aString = ""; /* name of selection */

  int nbSel = myGeomGUI->GetNameOfSelectedIObjects(mySelection, aString) ;
  if ( nbSel != 1 ) {
    switch (myConstructorId) 
      {
      case 0:
	{
	  if ( myEditCurrentArgument == LineEditC1A1 ) {
	    myOkShape1 = false ;
	  }
	  else if ( myEditCurrentArgument == LineEditC1A2 ) {
	    myOkShape2 = false ;
	  }
	  break ;
	} 
      }
    return ;
  }

  /*  nbSel == 1  */ 
  TopoDS_Shape S; 
  Standard_Boolean testResult ;
  Handle(SALOME_InteractiveObject) IO = mySelection->firstIObject() ;
  if( !myGeomGUI->GetTopoFromSelection(mySelection, S) )
    return ;
  
  if ( myEditCurrentArgument == LineEditC1A1 ) {
    myGeomShape1 = myGeomGUI->ConvertIOinGEOMShape(IO, testResult) ;
    if( !testResult )
      return ;
    myShape1 = S ;
    LineEditC1A1->setText(aString) ;
    myOkShape1 = true ;
  }    
  else if ( myEditCurrentArgument == LineEditC1A2 ) {
    myGeomShape2 = myGeomGUI->ConvertIOinGEOMShape(IO, testResult) ;
    if( !testResult )
      return ;
    myShape2 = S ;
    LineEditC1A2->setText(aString) ;
    myOkShape2 = true ;
  }

  if(myOkShape1 && myOkShape2) {
    MakeMirrorSimulationAndDisplay( myShape1,  myShape2 ) ;
  }

  return ; 
}



//=================================================================================
// function : MakeMirrorSimulationAndDisplay()
// purpose  : S1 is a shape and S2 a mirror.
//=================================================================================
void GeometryGUI_MirrorDlg::MakeMirrorSimulationAndDisplay( const TopoDS_Shape& S1, const TopoDS_Shape& S2 )
{
  this->mySimulationTopoDs.Nullify() ;
  
  try {
    Handle(Geom_Surface) surf = BRep_Tool::Surface(TopoDS::Face(S2)) ;
    Handle(Geom_Plane) myPlane = Handle(Geom_Plane)::DownCast(surf) ;
    const gp_Ax3 pos = myPlane->Position() ;
    const gp_Pnt loc = pos.Location() ;  /* location of the plane */
    const gp_Dir dir = pos.Direction() ; /* Main direction of the plane (Z axis) */
    
    /* plane used for mirroring */
    gp_Ax2 pln(loc, dir) ;
    gp_Trsf theTransformation ;
    theTransformation.SetMirror(pln) ;
    BRepBuilderAPI_Transform myBRepTransformation( S1, theTransformation, Standard_False ) ;
    
    this->mySimulationTopoDs = myBRepTransformation.Shape() ;
    if( this->mySimulationTopoDs.IsNull() )
      return ;
    else
      myGeomGUI->DisplaySimulationShape( mySimulationTopoDs ) ; 
  }
  catch(Standard_Failure) {
    MESSAGE( "Exception catched in MakeMirrorSimulationAndDisplay" ) ;
    return ;
  }
  return ;
}



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

  switch (myConstructorId)
    {
    case 0:
      {	
	if( send == SelectButtonC1A1 ) {
	  LineEditC1A1->setFocus() ;
	  myEditCurrentArgument = LineEditC1A1 ;
	  mySelection->ClearFilters() ;	  
	  SelectionIntoArgument() ;
	}
	else if(send == SelectButtonC1A2) {
	  LineEditC1A2->setFocus() ;
	  myEditCurrentArgument = LineEditC1A2;
	  mySelection->AddFilter(myFaceFilter) ;
	  SelectionIntoArgument() ;
	}	
	break;
      }
    }
  return ;
}



//=================================================================================
// function : LineEditReturnPressed()
// purpose  :
//=================================================================================
void GeometryGUI_MirrorDlg::LineEditReturnPressed()
{
  QLineEdit* send = (QLineEdit*)sender();  
  if( send == LineEditC1A1 )
    myEditCurrentArgument = LineEditC1A1 ;
  else if ( send == LineEditC1A2 )
    myEditCurrentArgument = LineEditC1A2 ; 
  else
    return ;
  
  /* User name of object input management                          */
  /* If successfull the selection is changed and signal emitted... */
  /* so SelectionIntoArgument() is automatically called.           */
  const QString objectUserName = myEditCurrentArgument->text() ;
  QWidget* thisWidget = (QWidget*)this ;
  if( myGeomGUI->SelectionByNameInDialogs( thisWidget, objectUserName, mySelection ) ) {
    myEditCurrentArgument->setText( objectUserName ) ;
  }
  return ;
}



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



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


//=================================================================================
// function : enterEvent()
// purpose  : when mouse enter onto the QWidget
//=================================================================================
void GeometryGUI_MirrorDlg::enterEvent( QEvent *  )
{
  if ( GroupConstructors->isEnabled() )
    return ;
  ActivateThisDialog() ;
}



//=================================================================================
// function : ActivateThisDialog()
// purpose  :
//=================================================================================
void GeometryGUI_MirrorDlg::ActivateThisDialog()
{
  /* Emit a signal to deactivate any active dialog */
  myGeomGUI->EmitSignalDeactivateDialog() ;
  GroupConstructors->setEnabled(true) ;
  GroupC1->setEnabled(true) ;
  GroupButtons->setEnabled(true) ;  
  connect ( mySelection, SIGNAL( currentSelectionChanged() ), this, SLOT( SelectionIntoArgument() ) );
  return ;
}