// Copyright (C) 2007-2012  CEA/DEN, EDF R&D, OPEN CASCADE
//
// 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   : GEOMToolsGUI_DeflectionDlg.cxx
//  Author : OCC Team
//
#include "GEOMToolsGUI_DeflectionDlg.h"
#include <GeometryGUI.h>
#include <GEOM_Constants.h>
#include <LightApp_Application.h>
#include <SalomeApp_DoubleSpinBox.h>

#include <SUIT_MessageBox.h>
#include <SUIT_ResourceMgr.h>
#include <SUIT_Session.h>
#include <SUIT_Tools.h>

#include <QLabel>
#include <QPushButton>
#include <QGroupBox>
#include <QGridLayout>
#include <QKeyEvent>

//=================================================================================
// class    : GEOMToolsGUI_DeflectionDlg()
// purpose  : Constructs a GEOMToolsGUI_DeflectionDlg 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.
//=================================================================================
GEOMToolsGUI_DeflectionDlg::GEOMToolsGUI_DeflectionDlg (QWidget* parent)
  : QDialog(parent, Qt::WindowTitleHint | Qt::WindowSystemMenuHint)
{
  setObjectName("GEOMToolsGUI_DeflectionDlg");
  setModal(true);

  setWindowTitle(tr("GEOM_DEFLECTION_TLT"));
  setSizeGripEnabled(TRUE);
  QGridLayout* MyDialogLayout = new QGridLayout(this);
  MyDialogLayout->setSpacing(6);
  MyDialogLayout->setMargin(11);

  /***************************************************************/
  QGroupBox* GroupC1 = new QGroupBox (this);
  GroupC1->setObjectName("GroupC1");
  QGridLayout* GroupC1Layout = new QGridLayout (GroupC1);
  GroupC1Layout->setAlignment(Qt::AlignTop);
  GroupC1Layout->setSpacing(6);
  GroupC1Layout->setMargin(11);

  QLabel* TextLabel1 = new QLabel (GroupC1);
  TextLabel1->setObjectName("TextLabel1");
  TextLabel1->setText(tr("GEOM_DEFLECTION"));
  GroupC1Layout->addWidget(TextLabel1, 0, 0);

  SpinBox = new SalomeApp_DoubleSpinBox (GroupC1);
  // Obtain precision from preferences
  SUIT_ResourceMgr* resMgr = SUIT_Session::session()->resourceMgr();
  const char* quantity = "parametric_precision";
  int aPrecision = resMgr->integerValue( "Geometry", quantity, 6 ); 
  SpinBox->setAcceptNames( false );
  SpinBox->setPrecision( aPrecision );
  SpinBox->setDecimals( aPrecision );
  SpinBox->setRange( DEFLECTION_MIN, 1.0 );
  SpinBox->setSingleStep( 1.0e-04 );
  // Add a hint for the user saying how to tune precision
  QString userPropName = QObject::tr( QString( "GEOM_PREF_%1" ).arg( quantity ).toLatin1().constData() );
  SpinBox->setProperty( "validity_tune_hint", 
                        QVariant( QObject::tr( "GEOM_PRECISION_HINT" ).arg( userPropName ) ) );
  
  SpinBox->setObjectName("SpinBoxU");
  SpinBox->setSizePolicy(QSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed));
  SpinBox->setValue(1.0e-04);
  GroupC1Layout->addWidget(SpinBox, 0, 1);

  /***************************************************************/
  QGroupBox* GroupButtons = new QGroupBox (this);
  GroupButtons->setObjectName("GroupButtons");
  QGridLayout* GroupButtonsLayout = new QGridLayout (GroupButtons);
  GroupButtonsLayout->setAlignment(Qt::AlignTop);
  GroupButtonsLayout->setSpacing(6);
  GroupButtonsLayout->setMargin(11);

  QPushButton* buttonOk = new QPushButton (GroupButtons);
  buttonOk->setObjectName("buttonOk");
  buttonOk->setText(tr("GEOM_BUT_OK"));
  buttonOk->setAutoDefault(TRUE);
  buttonOk->setDefault(TRUE);
  GroupButtonsLayout->addWidget(buttonOk, 0, 0);

  GroupButtonsLayout->addItem(new QSpacerItem (20, 20, QSizePolicy::Expanding, QSizePolicy::Minimum), 0, 1);

  QPushButton* buttonCancel = new QPushButton (GroupButtons);
  buttonCancel->setObjectName("buttonCancel");
  buttonCancel->setText(tr("GEOM_BUT_CANCEL"));
  buttonCancel->setAutoDefault(TRUE);
  GroupButtonsLayout->addWidget(buttonCancel, 0, 1);

  QPushButton* buttonHelp = new QPushButton (GroupButtons);
  buttonHelp->setObjectName("buttonHelp");
  buttonHelp->setText(tr("GEOM_BUT_HELP"));
  buttonHelp->setAutoDefault(TRUE);
  GroupButtonsLayout->addWidget(buttonHelp, 0, 2);
  /***************************************************************/

  MyDialogLayout->addWidget(GroupC1, 0, 0);
  MyDialogLayout->addWidget(GroupButtons, 1, 0);

  myHelpFileName = "deflection_page.html";

  // signals and slots connections
  connect(buttonOk, SIGNAL(clicked()), this, SLOT(accept()));
  connect(buttonCancel, SIGNAL(clicked()), this, SLOT(reject()));
  connect(buttonHelp, SIGNAL(clicked()), this, SLOT(ClickOnHelp()));

  // Move widget on the botton right corner of main widget
  SUIT_Tools::centerWidget(this, parent);
}

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

double GEOMToolsGUI_DeflectionDlg::getTheDC() const
{
  return SpinBox->text().toDouble();
}

void GEOMToolsGUI_DeflectionDlg::setTheDC (const double v)
{
  SpinBox->setValue(v);
}

//=================================================================================
// function : ClickOnHelp()
// purpose  :
//=================================================================================
void GEOMToolsGUI_DeflectionDlg::ClickOnHelp()
{
  LightApp_Application* app = (LightApp_Application*)(SUIT_Session::session()->activeApplication());
  if (app) {
    GeometryGUI* aGeomGUI = dynamic_cast<GeometryGUI*>(app->module("Geometry"));
    app->onHelpContextModule(aGeomGUI ? app->moduleName(aGeomGUI->moduleName()) : QString(""), myHelpFileName);
  }
  else {
    QString platform;
#ifdef WIN32
    platform = "winapplication";
#else
    platform = "application";
#endif
    SUIT_MessageBox::warning
      (0, QObject::tr("WRN_WARNING"),
       QObject::tr("EXTERNAL_BROWSER_CANNOT_SHOW_PAGE").
       arg(app->resourceMgr()->stringValue("ExternalBrowser", platform)).arg(myHelpFileName),
       QObject::tr("BUT_OK"));
  }
}

//=================================================================================
// function : keyPressEvent()
// purpose  :
//=================================================================================
void GEOMToolsGUI_DeflectionDlg::keyPressEvent (QKeyEvent* e)
{
  QDialog::keyPressEvent(e);
  if (e->isAccepted())
    return;

  if (e->key() == Qt::Key_F1) {
    e->accept();
    ClickOnHelp();
  }
}
