// 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   : TransformationGUI_ScaleDlg.cxx
// Author : Lucien PIGNOLONI, Open CASCADE S.A.S.

#include "TransformationGUI_ScaleDlg.h"

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

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

#include <TopoDS_Shape.hxx>
#include <TopoDS.hxx>
#include <TopExp.hxx>
#include <TColStd_IndexedMapOfInteger.hxx>
#include <TopTools_IndexedMapOfShape.hxx>

#include <GEOMImpl_Types.hxx>

//=================================================================================
// class    : TransformationGUI_ScaleDlg()
// purpose  : Constructs a TransformationGUI_ScaleDlg 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.
//=================================================================================
TransformationGUI_ScaleDlg::TransformationGUI_ScaleDlg( GeometryGUI* theGeometryGUI, QWidget* parent,
							bool modal, Qt::WindowFlags fl )
  : GEOMBase_Skeleton( theGeometryGUI, parent, modal, fl )
{
  SUIT_ResourceMgr* aResMgr = myGeomGUI->getApp()->resourceMgr();
  QPixmap image1( aResMgr->loadPixmap( "GEOM", tr( "ICON_DLG_SCALE" ) ) );
  QPixmap image2( aResMgr->loadPixmap( "GEOM", tr( "ICON_DLG_SCALE_ALONG_AXES" ) ) );
  QPixmap image3( aResMgr->loadPixmap( "GEOM", tr( "ICON_SELECT" ) ) );

  setWindowTitle( tr( "GEOM_SCALE_TITLE" ) );

  // Constructors
  mainFrame()->GroupConstructors->setTitle( tr( "GEOM_SCALE" ) );
  mainFrame()->RadioButton1->setIcon( image1 );
  mainFrame()->RadioButton2->setIcon( image2 );
  mainFrame()->RadioButton3->setAttribute( Qt::WA_DeleteOnClose );
  mainFrame()->RadioButton3->close();

  // Own widgets
  GroupBox1 = new QGroupBox( tr( "GEOM_ARGUMENTS" ), this );
  QGridLayout* OwnLayout = new QGridLayout( GroupBox1 );
  OwnLayout->setSpacing( 6 );
  OwnLayout->setMargin( 11 );

  TextLabel1 = new QLabel( tr( "GEOM_OBJECTS" ), GroupBox1 );
  PushButton1 = new QPushButton( GroupBox1 );
  PushButton1->setIcon( image3 );
  PushButton1->setSizePolicy( QSizePolicy( QSizePolicy::Fixed, QSizePolicy::Fixed ) );
  LineEdit1 = new QLineEdit( GroupBox1 );
  LineEdit1->setReadOnly( true );
  LineEdit1->setSizePolicy( QSizePolicy( QSizePolicy::Expanding, QSizePolicy::Fixed ) );

  TextLabel2 = new QLabel( tr( "GEOM_CENTRAL_POINT" ), GroupBox1 );
  PushButton2 = new QPushButton( GroupBox1 );
  PushButton2->setIcon( image3 );
  PushButton2->setSizePolicy( QSizePolicy( QSizePolicy::Fixed, QSizePolicy::Fixed ) );
  LineEdit2 = new QLineEdit( GroupBox1 );
  LineEdit2->setReadOnly( true );
  LineEdit2->setSizePolicy( QSizePolicy( QSizePolicy::Expanding, QSizePolicy::Fixed ) );

  TextLabel3 = new QLabel( tr( "GEOM_SCALE_FACTOR" ), GroupBox1 );
  SpinBox_FX = new QtxDoubleSpinBox( GroupBox1 );

  TextLabel4 = new QLabel( tr( "GEOM_SCALE_FACTOR_Y" ), GroupBox1 );
  SpinBox_FY = new QtxDoubleSpinBox( GroupBox1 );

  TextLabel5 = new QLabel( tr( "GEOM_SCALE_FACTOR_Z" ), GroupBox1 );
  SpinBox_FZ = new QtxDoubleSpinBox( GroupBox1 );

  CheckBoxCopy = new QCheckBox( tr( "GEOM_CREATE_COPY" ), GroupBox1 );
  CheckBoxCopy->setChecked( true );

  // Layouting
  OwnLayout->addWidget( TextLabel1,   0, 0 );
  OwnLayout->addWidget( PushButton1,  0, 1 );
  OwnLayout->addWidget( LineEdit1,    0, 2, 1, 2 );
  OwnLayout->addWidget( TextLabel2,   1, 0 );
  OwnLayout->addWidget( PushButton2,  1, 1 );
  OwnLayout->addWidget( LineEdit2,    1, 2, 1, 2 );
  OwnLayout->addWidget( TextLabel3,   2, 0 );
  OwnLayout->addWidget( SpinBox_FX,   2, 2 );
  OwnLayout->addWidget( TextLabel4,   3, 0 );
  OwnLayout->addWidget( SpinBox_FY,   3, 2 );
  OwnLayout->addWidget( TextLabel5,   4, 0 );
  OwnLayout->addWidget( SpinBox_FZ,   4, 2 );
  OwnLayout->addWidget( CheckBoxCopy, 5, 0, 1, 4 );

  QVBoxLayout* layout = new QVBoxLayout( centralWidget() );
  layout->setMargin( 0 ); layout->setSpacing( 6 );
  layout->addWidget( GroupBox1 );

  // Min, max, step and decimals for spin boxes & initial values
  double aFactor = 2.0;
  double SpecificStep = 0.5;
  initSpinBox( SpinBox_FX, COORD_MIN, COORD_MAX, SpecificStep, DBL_DIGITS_DISPLAY );
  initSpinBox( SpinBox_FY, COORD_MIN, COORD_MAX, SpecificStep, DBL_DIGITS_DISPLAY );
  initSpinBox( SpinBox_FZ, COORD_MIN, COORD_MAX, SpecificStep, DBL_DIGITS_DISPLAY );
  SpinBox_FX->setValue( aFactor );
  SpinBox_FY->setValue( aFactor );
  SpinBox_FZ->setValue( aFactor );

  // Modification of an existing object by offset is not allowed
  CheckBoxCopy->hide();
  
  // Activate Create a Copy mode
  CreateCopyModeChanged( true );

  // Allowed inheritance of children and visual properties by the scaling result
  mainFrame()->GroupBoxPublish->show();

  // Signals and slots connections
  connect( buttonOk(),        SIGNAL( clicked() ), this, SLOT( ClickOnOk() ) );
  connect( buttonApply(),     SIGNAL( clicked() ), this, SLOT( ClickOnApply() ) );
  connect( this, SIGNAL( constructorsClicked( int ) ), this, SLOT( ConstructorsClicked( int ) ) );

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

  connect( LineEdit1, SIGNAL( returnPressed() ), this, SLOT( LineEditReturnPressed() ) );
  connect( LineEdit2, SIGNAL( returnPressed() ), this, SLOT( LineEditReturnPressed() ) );
  
  connect( SpinBox_FX, SIGNAL( valueChanged( double ) ), this, SLOT( ValueChangedInSpinBox() ) );
  connect( SpinBox_FY, SIGNAL( valueChanged( double ) ), this, SLOT( ValueChangedInSpinBox() ) );
  connect( SpinBox_FZ, SIGNAL( valueChanged( double ) ), this, SLOT( ValueChangedInSpinBox() ) );
  
  connect( myGeomGUI, SIGNAL( SignalDefaultStepValueChanged( double ) ), this, SLOT( SetDoubleSpinBoxStep( double ) ) );

  connect( CheckBoxCopy, SIGNAL( toggled( bool ) ), this, SLOT( CreateCopyModeChanged( bool ) ) );
   
  connect( myGeomGUI->getApp()->selectionMgr(), 
	   SIGNAL( currentSelectionChanged() ), this, SLOT( SelectionIntoArgument() ) );

  setHelpFileName( "scale_operation_page.html" );

  Init();
}

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

//=================================================================================
// function : Init()
// purpose  :
//=================================================================================
void TransformationGUI_ScaleDlg::Init()
{
  myEditCurrentArgument = LineEdit1;
  LineEdit2->clear();
  
  myPoint = GEOM::GEOM_Object::_nil();
  
  initName( tr( "GEOM_SCALE" ) );

  ConstructorsClicked( 0 );
}

//=================================================================================
// function : ConstructorsClicked()
// purpose  : Radio button management
//=================================================================================
void TransformationGUI_ScaleDlg::ConstructorsClicked( int constructorId )
{
  erasePreview();

  switch( constructorId )
  {
  case 0: /* translation an object by dx, dy, dz */
    TextLabel3->setText( tr( "GEOM_SCALE_FACTOR" ) );
    TextLabel4->hide();
    TextLabel5->hide();
    SpinBox_FY->hide();
    SpinBox_FZ->hide();
    break;
  case 1: /* translation an object by 2 points */
    TextLabel3->setText( tr( "GEOM_SCALE_FACTOR_X" ) );
    TextLabel4->show();
    TextLabel5->show();
    SpinBox_FY->show();
    SpinBox_FZ->show();
    break;
  default:
    break;
  }

  qApp->processEvents();
  updateGeometry();
  resize( minimumSize() );

  displayPreview();
}

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

//=================================================================================
// function : ClickOnApply()
// purpose  :
//=================================================================================
bool TransformationGUI_ScaleDlg::ClickOnApply()
{
  if ( !onAccept( CheckBoxCopy->isChecked() ) )
    return false;

  initName( tr( "GEOM_SCALE" ) );
  return true;
}

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

  LightApp_SelectionMgr* aSelMgr = myGeomGUI->getApp()->selectionMgr();
  SALOME_ListIO aSelList;
  aSelMgr->selectedObjects(aSelList);

  if (myEditCurrentArgument == LineEdit1)
  {
    int aNbSel = GEOMBase::GetNameOfSelectedIObjects(aSelList, aName);
    if (aNbSel < 1)
    {
      myObjects.length(0);
      return;
    }
    GEOMBase::ConvertListOfIOInListOfGO(aSelList, myObjects);
    if (!myObjects.length())
      return;
  }
  else if (myEditCurrentArgument == LineEdit2)
  {
    GEOM::GEOM_Object_var aSelectedObject = GEOM::GEOM_Object::_nil();
    if (aSelList.Extent() == 1)
    {
      Standard_Boolean testResult = Standard_False;
      aSelectedObject = GEOMBase::ConvertIOinGEOMObject(aSelList.First(), testResult);
      if (testResult)
      {
        aName = GEOMBase::GetName(aSelectedObject);

        TopoDS_Shape aShape;
        if (GEOMBase::GetShape(aSelectedObject, aShape, TopAbs_SHAPE) && !aShape.IsNull())
        {
          TColStd_IndexedMapOfInteger aMap;
          aSelMgr->GetIndexes(aSelList.First(), aMap);
          if (aMap.Extent() == 1)
          {
            int anIndex = aMap( 1 );
            aName += QString( ":vertex_%1" ).arg( anIndex );

            //Find SubShape Object in Father
            GEOM::GEOM_Object_var aFindedObject = findObjectInFather( aSelectedObject, aName );

            if ( aFindedObject == GEOM::GEOM_Object::_nil() ) { // Object not found in study
              GEOM::GEOM_IShapesOperations_var aShapesOp =
                getGeomEngine()->GetIShapesOperations( getStudyId() );
              aSelectedObject = aShapesOp->GetSubShape( aSelectedObject, anIndex );
              aSelMgr->clearSelected();
            }
            else
              aSelectedObject = aFindedObject; // get Object from study
          }
          else
          {
            if ( aShape.ShapeType() != TopAbs_VERTEX ) {
              aSelectedObject = GEOM::GEOM_Object::_nil();
              aName = "";
            }
          }
        }
      }
    }

    myPoint = aSelectedObject;
  }

  myEditCurrentArgument->setText(aName);
  displayPreview();
}

//=================================================================================
// function : LineEditReturnPressed()
// purpose  :
//=================================================================================
void TransformationGUI_ScaleDlg::LineEditReturnPressed()
{
  QLineEdit* send = (QLineEdit*)sender();
  if ( send == LineEdit1 || send == LineEdit2 )
  {
    myEditCurrentArgument = send;
    GEOMBase_Skeleton::LineEditReturnPressed();
  }
}

//=================================================================================
// function : SetEditCurrentArgument()
// purpose  :
//=================================================================================
void TransformationGUI_ScaleDlg::SetEditCurrentArgument()
{
  QPushButton* send = (QPushButton*)sender();
  globalSelection();
  
  if ( send == PushButton1 ) {
    myEditCurrentArgument = LineEdit1;
  }
  else if ( send == PushButton2 ) {
    myEditCurrentArgument = LineEdit2;
    localSelection(GEOM::GEOM_Object::_nil(), TopAbs_VERTEX);
  }
  
  myEditCurrentArgument->setFocus();
  SelectionIntoArgument();
}

//=================================================================================
// function : ActivateThisDialog()
// purpose  :
//=================================================================================
void TransformationGUI_ScaleDlg::ActivateThisDialog()
{
  GEOMBase_Skeleton::ActivateThisDialog();
  connect( myGeomGUI->getApp()->selectionMgr(), SIGNAL( currentSelectionChanged() ),
	   this, SLOT( SelectionIntoArgument() ) );
  globalSelection();
  myEditCurrentArgument->setFocus();
  if ( myEditCurrentArgument == LineEdit2 ) {
    localSelection( GEOM::GEOM_Object::_nil(), TopAbs_VERTEX );
  }
}

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

//=================================================================================
// function : ValueChangedInSpinBox()
// purpose  :
//=================================================================================
void TransformationGUI_ScaleDlg::ValueChangedInSpinBox()
{
  displayPreview();
}

//=================================================================================
// function : SetDoubleSpinBoxStep()
// purpose  : Double spin box management
//=================================================================================
void TransformationGUI_ScaleDlg::SetDoubleSpinBoxStep( double step )
{
  SpinBox_FX->setSingleStep( step );
  SpinBox_FY->setSingleStep( step );
  SpinBox_FZ->setSingleStep( step );
}

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

//=================================================================================
// function : isValid
// purpose  :
//=================================================================================
bool TransformationGUI_ScaleDlg::isValid( QString& /*msg*/)
{
  if ( myObjects.length() > 0 && fabs( SpinBox_FX->value() ) > 0.00001 )
  {
    // && !myPoint->_is_nil()
    if ( getConstructorId() == 0 )
      return true;
    if ( fabs( SpinBox_FY->value() ) > 0.00001 &&
         fabs( SpinBox_FZ->value() ) > 0.00001 )
      return true;
  }
  return false;
}

//=================================================================================
// function : execute
// purpose  :
//=================================================================================
bool TransformationGUI_ScaleDlg::execute( ObjectList& objects )
{
  bool toCreateCopy = IsPreview() || CheckBoxCopy->isChecked();

  GEOM::GEOM_Object_var anObj;

  switch ( getConstructorId() )
  {
  case 0:
    {
      if ( toCreateCopy )
      {
        for ( int i = 0; i < myObjects.length(); i++ )
        {
          anObj = GEOM::GEOM_ITransformOperations::_narrow( getOperation() )->
            ScaleShapeCopy( myObjects[i], myPoint, SpinBox_FX->value() );
          if ( !anObj->_is_nil() )
            objects.push_back( anObj._retn() );
        }
      }
      else
      {
        for ( int i = 0; i < myObjects.length(); i++ )
        {
          anObj = GEOM::GEOM_ITransformOperations::_narrow( getOperation() )->
            ScaleShape( myObjects[i], myPoint, SpinBox_FX->value() );
          if ( !anObj->_is_nil() )
            objects.push_back( anObj._retn() );
        }
      }
    }
    break;
  case 1:
    {
      if ( toCreateCopy )
      {
        for ( int i = 0; i < myObjects.length(); i++ )
        {
          anObj = GEOM::GEOM_ITransformOperations::_narrow( getOperation() )->
            ScaleShapeAlongAxesCopy( myObjects[i], myPoint, SpinBox_FX->value(),
				     SpinBox_FY->value(), SpinBox_FZ->value() );
          if ( !anObj->_is_nil() )
            objects.push_back( anObj._retn() );
        }
      }
      else
      {
        for ( int i = 0; i < myObjects.length(); i++ )
        {
          anObj = GEOM::GEOM_ITransformOperations::_narrow( getOperation() )->
            ScaleShapeAlongAxes( myObjects[i], myPoint, SpinBox_FX->value(),
				 SpinBox_FY->value(), SpinBox_FZ->value() );
          if ( !anObj->_is_nil() )
            objects.push_back( anObj._retn() );
        }
      }
    }
    break;
  default:
    break;
  }

  return true;
}

//=================================================================================
// function : restoreSubShapes
// purpose  :
//=================================================================================
void TransformationGUI_ScaleDlg::restoreSubShapes( SALOMEDS::Study_ptr   theStudy,
                                                   SALOMEDS::SObject_ptr theSObject )
{
  if ( mainFrame()->CheckBoxRestoreSS->isChecked() ) {
    // empty list of arguments means that all arguments should be restored
    getGeomEngine()->RestoreSubShapesSO( theStudy, theSObject, GEOM::ListOfGO(),
					 /*theFindMethod=*/GEOM::FSM_Transformed,
					 /*theInheritFirstArg=*/true );
  }
}

//=================================================================================
// function :  CreateCopyModeChanged()
// purpose  :
//=================================================================================
void TransformationGUI_ScaleDlg::CreateCopyModeChanged( bool isCreateCopy )
{
  mainFrame()->GroupBoxName->setEnabled( isCreateCopy );
}

//=================================================================================
// function : addSubshapesToStudy
// purpose  : virtual method to add new SubObjects if local selection
//=================================================================================
void TransformationGUI_ScaleDlg::addSubshapesToStudy()
{
  bool toCreateCopy = IsPreview() || CheckBoxCopy->isChecked();
  if ( toCreateCopy )
  {
    if ( !myPoint->_is_nil() )
    {
      QMap<QString, GEOM::GEOM_Object_var> objMap;
      objMap[LineEdit2->text()] = myPoint;
      addSubshapesToFather( objMap );
    }
  }
}