//  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
//
// GEOM GEOMGUI : GUI for Geometry component
// File   : GenerationGUI_RevolDlg.cxx
// Author : Lucien PIGNOLONI, Open CASCADE S.A.S.
//
#include "GenerationGUI_RevolDlg.h"

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

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

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

#include <GEOMImpl_Types.hxx>

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

  setWindowTitle(tr("GEOM_REVOLUTION_TITLE"));

  /***************************************************************/
  mainFrame()->GroupConstructors->setTitle(tr("GEOM_REVOLUTION"));
  mainFrame()->RadioButton1->setIcon(image0);
  mainFrame()->RadioButton2->setAttribute(Qt::WA_DeleteOnClose);
  mainFrame()->RadioButton2->close();
  mainFrame()->RadioButton3->setAttribute(Qt::WA_DeleteOnClose);
  mainFrame()->RadioButton3->close();
  myBothway = false;

  GroupPoints = new DlgRef_2Sel1Spin2Check(centralWidget());
  GroupPoints->GroupBox1->setTitle(tr("GEOM_ARGUMENTS"));
  GroupPoints->TextLabel1->setText(tr("GEOM_OBJECT"));
  GroupPoints->TextLabel2->setText(tr("GEOM_AXIS"));
  GroupPoints->TextLabel3->setText(tr("GEOM_ANGLE"));
  GroupPoints->PushButton1->setIcon(image1);
  GroupPoints->PushButton2->setIcon(image1);
  GroupPoints->LineEdit1->setReadOnly(true);
  GroupPoints->LineEdit2->setReadOnly(true);
  GroupPoints->CheckButton1->setText(tr("GEOM_BOTHWAY"));
  GroupPoints->CheckButton2->setText(tr("GEOM_REVERSE"));

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

  setHelpFileName("create_revolution_page.html");

  // Initialisation
  Init();
}

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

//=================================================================================
// function : Init()
// purpose  :
//=================================================================================
void GenerationGUI_RevolDlg::Init()
{
  // min, max, step and decimals for spin boxes & initial values
  double SpecificStep = 5;
  initSpinBox(GroupPoints->SpinBox_DX, -360.0, 360.0, SpecificStep, 3); // VSR: TODO: DBL_DIGITS_DISPLAY
  GroupPoints->SpinBox_DX->setValue(45.0);

  // init variables
  GroupPoints->LineEdit1->setReadOnly(true);
  GroupPoints->LineEdit2->setReadOnly(true);

  GroupPoints->LineEdit1->setText("");
  GroupPoints->LineEdit2->setText("");
  myBase = myAxis = GEOM::GEOM_Object::_nil();
  myOkBase = myOkAxis = false;

  // signals and slots connections
  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(GroupPoints->SpinBox_DX,   SIGNAL(valueChanged(double)), this, SLOT(ValueChangedInSpinBox()));
  connect(GroupPoints->CheckButton1, SIGNAL(toggled(bool)),        this, SLOT(onBothway()));
  connect(GroupPoints->CheckButton2, SIGNAL(toggled(bool)),        this, SLOT(onReverse()));

  connect(myGeomGUI, SIGNAL(SignalDefaultStepValueChanged(double)), this, SLOT(SetDoubleSpinBoxStep(double)));

  initName(tr("GEOM_REVOLUTION"));

  GroupPoints->PushButton1->click();
  SelectionIntoArgument();
}

//=================================================================================
// function : SetDoubleSpinBoxStep()
// purpose  : Double spin box management
//=================================================================================
void GenerationGUI_RevolDlg::SetDoubleSpinBoxStep (double step)
{
  GroupPoints->SpinBox_DX->setSingleStep(step);
}

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

//=================================================================================
// function : ClickOnApply()
// purpose  :
//=================================================================================
bool GenerationGUI_RevolDlg::ClickOnApply()
{
  if (!onAccept())
    return false;

  initName();
  // activate selection and connect selection manager
  GroupPoints->PushButton1->click();
  return true;
}

//=======================================================================
//function : isAcceptableBase
//purpose  : return true if theBase can be used as algo argument
//=======================================================================
static bool isAcceptableBase (const TopoDS_Shape& theBase)
{
  switch (theBase.ShapeType()) {
  case TopAbs_VERTEX:
  case TopAbs_EDGE:
  case TopAbs_WIRE:
  case TopAbs_FACE:
  case TopAbs_SHELL:
    return true;
  case TopAbs_SOLID:
  case TopAbs_COMPSOLID:
    return false;
  case TopAbs_COMPOUND: {
    TopExp_Explorer exp(theBase, TopAbs_SOLID);
    return !exp.More();
  }
  default:
    return false;
  }
  return false;
}

//=================================================================================
// function : SelectionIntoArgument()
// purpose  : Called when selection is changed or on dialog initialization or activation
//=================================================================================
void GenerationGUI_RevolDlg::SelectionIntoArgument()
{
  erasePreview();
  myEditCurrentArgument->setText("");
  if      (myEditCurrentArgument == GroupPoints->LineEdit1) myOkBase = false;
  else if (myEditCurrentArgument == GroupPoints->LineEdit2) myOkAxis = false;

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

  if (aSelList.Extent() != 1)
    return;

  // nbSel == 1
  Standard_Boolean testResult = Standard_False;
  GEOM::GEOM_Object_ptr aSelectedObject = GEOMBase::ConvertIOinGEOMObject(aSelList.First(), testResult);

  if (!testResult || aSelectedObject->_is_nil())
    return;

  TopoDS_Shape S;
  if (!GEOMBase::GetShape(aSelectedObject, S) || S.IsNull())
    return;

  QString aName = GEOMBase::GetName(aSelectedObject);

  if (myEditCurrentArgument == GroupPoints->LineEdit1) {
    if (!isAcceptableBase(S))
      return;

    myBase = aSelectedObject;
    myOkBase = true;
    myEditCurrentArgument->setText(aName);
    if (!myOkAxis)
      GroupPoints->PushButton2->click();
  }
  else if (myEditCurrentArgument == GroupPoints->LineEdit2) {
    TColStd_IndexedMapOfInteger aMap;
    aSelMgr->GetIndexes(aSelList.First(), aMap);
    if (aMap.Extent() == 1) {
      int anIndex = aMap(1);
      aName.append(":edge_" + QString::number(anIndex));

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

      if (aFindedObject == GEOM::GEOM_Object::_nil()) { // Object not found in study
        GEOM::GEOM_IShapesOperations_var aShapesOp =
          getGeomEngine()->GetIShapesOperations(getStudyId());
        myAxis = aShapesOp->GetSubShape(aSelectedObject, anIndex);
        myOkAxis = true;
      }
      else {
        myAxis = aFindedObject;
        myOkAxis = true;
      }
    }
    else {
      myOkAxis = true;
      if (S.ShapeType() != TopAbs_EDGE) {
        aSelectedObject = GEOM::GEOM_Object::_nil();
        aName = "";
        myOkAxis = false;
      }
      myAxis = aSelectedObject;
    }
    myEditCurrentArgument->setText(aName);
    if (myOkAxis && !myOkBase)
      GroupPoints->PushButton1->click();
  }

  // clear selection
  disconnect(myGeomGUI->getApp()->selectionMgr(), 0, this, 0);
  myGeomGUI->getApp()->selectionMgr()->clearSelected();
  connect(myGeomGUI->getApp()->selectionMgr(), SIGNAL(currentSelectionChanged()),
          this, SLOT(SelectionIntoArgument()));

  displayPreview();
}

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

  disconnect(myGeomGUI->getApp()->selectionMgr(), 0, this, 0);
  globalSelection(GEOM_ALLSHAPES);
  if (send == GroupPoints->PushButton1) {
    myEditCurrentArgument = GroupPoints->LineEdit1;
    GroupPoints->PushButton2->setDown(false);
    GroupPoints->LineEdit2->setEnabled(false);
  }
  else if (send == GroupPoints->PushButton2) {
    myEditCurrentArgument = GroupPoints->LineEdit2;
    GroupPoints->PushButton1->setDown(false);
    GroupPoints->LineEdit1->setEnabled(false);
    localSelection(GEOM::GEOM_Object::_nil(), TopAbs_EDGE);
  }
  connect(myGeomGUI->getApp()->selectionMgr(), SIGNAL(currentSelectionChanged()),
          this, SLOT(SelectionIntoArgument()));

  // enable line edit
  myEditCurrentArgument->setEnabled(true);
  myEditCurrentArgument->setFocus();
  // after setFocus(), because it will be setDown(false) when loses focus
  send->setDown(true);

  // seems we need it only to avoid preview disappearing, caused by selection mode change
  displayPreview();
}

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

//=================================================================================
// function : ActivateThisDialog()
// purpose  :
//=================================================================================
void GenerationGUI_RevolDlg::ActivateThisDialog()
{
  GEOMBase_Skeleton::ActivateThisDialog();
  connect( myGeomGUI->getApp()->selectionMgr(), SIGNAL( currentSelectionChanged() ),
	   this, SLOT( SelectionIntoArgument() ) );

  displayPreview();
}

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

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

//=================================================================================
// function : getAngle()
// purpose  :
//=================================================================================
double GenerationGUI_RevolDlg::getAngle() const
{
  return GroupPoints->SpinBox_DX->value();
}

//=================================================================================
// function : createOperation
// purpose  :
//=================================================================================
GEOM::GEOM_IOperations_ptr GenerationGUI_RevolDlg::createOperation()
{
  return getGeomEngine()->GetI3DPrimOperations(getStudyId());
}

//=================================================================================
// function : isValid
// purpose  :
//=================================================================================
bool GenerationGUI_RevolDlg::isValid (QString& msg)
{
  bool ok = GroupPoints->SpinBox_DX->isValid( msg, !IsPreview() );
  return myOkBase && myOkAxis && ok;
}

//=================================================================================
// function : execute
// purpose  :
//=================================================================================
bool GenerationGUI_RevolDlg::execute (ObjectList& objects)
{
  GEOM::GEOM_Object_var anObj;

  if (!myBothway) {
    anObj = GEOM::GEOM_I3DPrimOperations::_narrow(getOperation())->
      MakeRevolutionAxisAngle(myBase, myAxis, getAngle() * PI180);
  }
  else {
    anObj = GEOM::GEOM_I3DPrimOperations::_narrow(getOperation())->
      MakeRevolutionAxisAngle2Ways(myBase, myAxis, getAngle() * PI180);
  }

  if (!anObj->_is_nil())
  {
    if (!IsPreview())
    {
      QStringList aParameters;
      aParameters << GroupPoints->SpinBox_DX->text();
      anObj->SetParameters(GeometryGUI::JoinObjectParameters(aParameters));
    }
    objects.push_back(anObj._retn());
  }

  return true;
}

//=================================================================================
// function :  onReverse()
// purpose  :
//=================================================================================
void GenerationGUI_RevolDlg::onReverse()
{
  double anOldValue = GroupPoints->SpinBox_DX->value();
  GroupPoints->SpinBox_DX->setValue(-anOldValue);
}

//=================================================================================
// function :  onBothway()
// purpose  :
//=================================================================================
void GenerationGUI_RevolDlg::onBothway()
{
  bool anOldValue = myBothway;
  myBothway = !anOldValue;
  GroupPoints->CheckButton2->setEnabled(!myBothway);
  displayPreview();
}

//=================================================================================
// function : addSubshapeToStudy
// purpose  : virtual method to add new SubObjects if local selection
//=================================================================================
void GenerationGUI_RevolDlg::addSubshapesToStudy()
{
  QMap<QString, GEOM::GEOM_Object_var> objMap;

  objMap[GroupPoints->LineEdit2->text()] = myAxis;

  addSubshapesToFather(objMap);
}