// 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.salome-platform.org/ or email : webmaster.salome@opencascade.com
//
// File   : BasicGUI_LineDlg.cxx
// Author : Lucien PIGNOLONI, Open CASCADE S.A.S.
//

#include "BasicGUI_LineDlg.h"

#include <GeometryGUI.h>
#include <GEOMBase.h>
#include <GEOM_DlgRef.h>

#include <SUIT_ResourceMgr.h>
#include <SUIT_Session.h>
#include <SalomeApp_Application.h>
#include <LightApp_SelectionMgr.h>

#include <GEOMImpl_Types.hxx>

//=================================================================================
// class    : BasicGUI_LineDlg()
// purpose  : Constructs a BasicGUI_LineDlg 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.
//=================================================================================
BasicGUI_LineDlg::BasicGUI_LineDlg( GeometryGUI* theGeometryGUI, QWidget* parent,
				    const char* name, bool modal, Qt::WindowFlags fl )
  : GEOMBase_Skeleton( theGeometryGUI, parent, name, modal, fl )
{
  QPixmap image0( SUIT_Session::session()->resourceMgr()->loadPixmap( "GEOM", tr( "ICON_DLG_LINE_2P" ) ) );
  QPixmap image1( SUIT_Session::session()->resourceMgr()->loadPixmap( "GEOM", tr( "ICON_SELECT" ) ) );

  setWindowTitle( tr( "GEOM_LINE_TITLE" ) );
 
  /***************************************************************/
  mainFrame()->GroupConstructors->setTitle( tr( "GEOM_LINE" ) );
  mainFrame()->RadioButton1->setIcon( image0 );
  mainFrame()->RadioButton2->setAttribute( Qt::WA_DeleteOnClose );
  mainFrame()->RadioButton2->close();
  mainFrame()->RadioButton3->setAttribute( Qt::WA_DeleteOnClose );
  mainFrame()->RadioButton3->close();

  GroupPoints = new DlgRef_2Sel( centralWidget() );

  GroupPoints->GroupBox1->setTitle( tr( "GEOM_POINTS" ) );
  GroupPoints->TextLabel1->setText( tr( "GEOM_POINT_I" ).arg( 1 ) );
  GroupPoints->TextLabel2->setText( tr( "GEOM_POINT_I" ).arg( 2 ) );
  GroupPoints->PushButton1->setIcon( image1 );
  GroupPoints->PushButton2->setIcon( image1 );

  GroupPoints->LineEdit1->setReadOnly( true );
  GroupPoints->LineEdit2->setReadOnly( true );

  QVBoxLayout* layout = new QVBoxLayout( centralWidget() );
  layout->setMargin( 0 ); layout->setSpacing( 6 );
  layout->addWidget( GroupPoints );

  /***************************************************************/

  setHelpFileName( "line.htm" );

  Init();
}


//=================================================================================
// function : ~BasicGUI_LineDlg()
// purpose  : Destroys the object and frees any allocated resources
//=================================================================================
BasicGUI_LineDlg::~BasicGUI_LineDlg()
{  
}


//=================================================================================
// function : Init()
// purpose  :
//=================================================================================
void BasicGUI_LineDlg::Init()
{
  /* init variables */
  myEditCurrentArgument = GroupPoints->LineEdit1;

  myPoint1 = myPoint2 = GEOM::GEOM_Object::_nil();

  // myGeomGUI->SetState( 0 );
  globalSelection( GEOM_POINT );
	
  /* signals and slots connections */
  connect( myGeomGUI, SIGNAL( SignalDeactivateActiveDialog() ), this, SLOT( DeactivateActiveDialog() ) );
  connect( myGeomGUI, SIGNAL( SignalCloseAllDialogs() ),        this, SLOT( ClickOnCancel() ) );

  connect( buttonCancel(), SIGNAL( clicked() ), this, SLOT( ClickOnCancel() ) );
  connect( buttonOk(),     SIGNAL( clicked() ), this, SLOT( ClickOnOk() ) );
  connect( buttonApply(),  SIGNAL( clicked() ), this, SLOT( ClickOnApply() ) );

  connect( GroupPoints->PushButton1, SIGNAL( clicked() ),       this, SLOT( SetEditCurrentArgument() ) );
  connect( GroupPoints->PushButton2, SIGNAL( clicked() ),       this, SLOT( SetEditCurrentArgument() ) );

  connect( GroupPoints->LineEdit1,   SIGNAL( returnPressed() ), this, SLOT( LineEditReturnPressed() ) );
  connect( GroupPoints->LineEdit2,   SIGNAL( returnPressed() ), this, SLOT( LineEditReturnPressed() ) );

  connect( ( (SalomeApp_Application*)( SUIT_Session::session()->activeApplication() ) )->selectionMgr(),
	   SIGNAL( currentSelectionChanged() ), this, SLOT( SelectionIntoArgument() ) );
  
  initName( tr( "GEOM_LINE" ) );
}


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

//=======================================================================
// function : ClickOnCancel()
// purpose  :
//=======================================================================
void BasicGUI_LineDlg::ClickOnCancel()
{
  GEOMBase_Skeleton::ClickOnCancel();
}

//=================================================================================
// function : ClickOnApply()
// purpose  :
//=================================================================================
bool BasicGUI_LineDlg::ClickOnApply()
{
  if ( !onAccept() )
    return false;
  
  initName();
  return true;
}


//=================================================================================
// function : SelectionIntoArgument()
// purpose  : Called when selection as changed or other case
//=================================================================================
void BasicGUI_LineDlg::SelectionIntoArgument()
{
  myEditCurrentArgument->setText( "" );

  if ( IObjectCount() != 1 ) {
    if ( myEditCurrentArgument == GroupPoints->LineEdit1 )      myPoint1 = GEOM::GEOM_Object::_nil();
    else if ( myEditCurrentArgument == GroupPoints->LineEdit2 ) myPoint2 = GEOM::GEOM_Object::_nil();
    return;
  }

  // nbSel == 1 
  Standard_Boolean aRes = Standard_False;
  GEOM::GEOM_Object_var aSelectedObject = GEOMBase::ConvertIOinGEOMObject( firstIObject(), aRes );
  if ( !CORBA::is_nil( aSelectedObject ) && aRes ) {
    myEditCurrentArgument->setText( GEOMBase::GetName( aSelectedObject ) );
    if      ( myEditCurrentArgument == GroupPoints->LineEdit1 ) myPoint1 = aSelectedObject;
    else if ( myEditCurrentArgument == GroupPoints->LineEdit2 ) myPoint2 = aSelectedObject;
  }
  
  displayPreview();
}


//=================================================================================
// function : SetEditCurrentArgument()
// purpose  :
//=================================================================================
void BasicGUI_LineDlg::SetEditCurrentArgument()
{
  QPushButton* send = (QPushButton*)sender();
  if      ( send == GroupPoints->PushButton1 ) myEditCurrentArgument = GroupPoints->LineEdit1;
  else if ( send == GroupPoints->PushButton2 ) myEditCurrentArgument = GroupPoints->LineEdit2;
  myEditCurrentArgument->setFocus();
  SelectionIntoArgument();
}


//=================================================================================
// function : LineEditReturnPressed()
// purpose  :
//=================================================================================
void BasicGUI_LineDlg::LineEditReturnPressed()
{
  QLineEdit* send = (QLineEdit*)sender();
  if      ( send == GroupPoints->LineEdit1 ) myEditCurrentArgument = GroupPoints->LineEdit1;
  else if ( send == GroupPoints->LineEdit2 ) myEditCurrentArgument = GroupPoints->LineEdit2;
  else return;
  GEOMBase_Skeleton::LineEditReturnPressed();
}


//=================================================================================
// function : ActivateThisDialog()
// purpose  :
//=================================================================================
void BasicGUI_LineDlg::ActivateThisDialog()
{
  GEOMBase_Skeleton::ActivateThisDialog();
  connect( ( (SalomeApp_Application*)( SUIT_Session::session()->activeApplication() ) )->selectionMgr(), 
	   SIGNAL( currentSelectionChanged() ), this, SLOT( SelectionIntoArgument() ) );

  // myGeomGUI->SetState( 0 );
  globalSelection( GEOM_POINT );

  myEditCurrentArgument = GroupPoints->LineEdit1;
  myEditCurrentArgument->setFocus();

  GroupPoints->LineEdit1->setText( "" );
  GroupPoints->LineEdit2->setText( "" );
  myPoint1 = myPoint2 = GEOM::GEOM_Object::_nil();
}

//=================================================================================
// function : DeactivateActiveDialog()
// purpose  : public slot to deactivate if active
//=================================================================================
void BasicGUI_LineDlg::DeactivateActiveDialog()
{
  // myGeomGUI->SetState( -1 );
  GEOMBase_Skeleton::DeactivateActiveDialog();
}

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

//=================================================================================
// function : createOperation
// purpose  :
//=================================================================================
GEOM::GEOM_IOperations_ptr BasicGUI_LineDlg::createOperation()
{
  return myGeomGUI->GetGeomGen()->GetIBasicOperations( getStudyId() );
}

//=================================================================================
// function : isValid
// purpose  :
//=================================================================================
bool BasicGUI_LineDlg::isValid( QString& msg )
{
  return !myPoint1->_is_nil() && !myPoint2->_is_nil();
}

//=================================================================================
// function : execute
// purpose  :
//=================================================================================
bool BasicGUI_LineDlg::execute( ObjectList& objects )
{
  GEOM::GEOM_Object_var anObj = GEOM::GEOM_IBasicOperations::_narrow( getOperation() )->MakeLineTwoPnt( myPoint1, myPoint2 );
  if ( !anObj->_is_nil() )
    objects.push_back( anObj._retn() );
  return true;
}

//=================================================================================
// function : closeEvent
// purpose  :
//=================================================================================
void BasicGUI_LineDlg::closeEvent( QCloseEvent* e )
{
  GEOMBase_Skeleton::closeEvent( e );
}