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

 *

 * 

 *

 * Copyright (C) 1997-2007 by Dimitri van Heesch.

 *

 * Permission to use, copy, modify, and distribute this software and its

 * documentation under the terms of the GNU General Public License is hereby 

 * granted. No representations are made about the suitability of this software 

 * for any purpose. It is provided "as is" without express or implied warranty.

 * See the GNU General Public License for more details.

 *

 */

#include "inputbool.h"

#include "helplabel.h"

#include <QtGui>

InputBool::InputBool( QGridLayout *layout, int &row, 

                      const QString &id, bool checked,

                      const QString &docs )

  : m_default(checked), m_docs(docs), m_id(id)

{

  m_lab = new HelpLabel(id);

  m_cb = new QCheckBox;

  layout->addWidget(m_lab,row, 0);

  layout->addWidget(m_cb,row, 1);

  m_enabled = true;

  m_state=!checked; // force update

  setValue(checked);

  connect( m_cb, SIGNAL(toggled(bool)), SLOT(setValue(bool)) );

  connect( m_lab, SIGNAL(enter()), SLOT(help()) );

  connect( m_lab, SIGNAL(reset()), SLOT(reset()) );

  row++;

}

void InputBool::help()

{

  showHelp(this);

}

void InputBool::setEnabled(bool b)

{ 

  m_enabled = b;

  m_cb->setEnabled(b); 

  updateDependencies();

}

void InputBool::updateDependencies()

{

  for (int i=0;i<m_dependencies.count();i++)

  {

    m_dependencies[i]->setEnabled(m_enabled && m_state);

  }

}

void InputBool::setValue( bool s )

{

  if (m_state!=s) 

  {

    m_state=s;

    updateDefault();

    updateDependencies();

    m_cb->setChecked( s );

    m_value = m_state;

    emit changed();

  }

}

void InputBool::updateDefault()

{

  if (m_state==m_default)

  {

    m_lab->setText(QString::fromAscii("<qt>")+m_id+QString::fromAscii("</qt"));

  }

  else

  {

    m_lab->setText(QString::fromAscii("<qt><font color='red'>")+m_id+QString::fromAscii("</font></qt>"));

  }

}

QVariant &InputBool::value()

{

  return m_value;

}

void InputBool::update()

{

  QString v = m_value.toString().toLower();

  m_state = (v==QString::fromAscii("yes")  || 

             v==QString::fromAscii("true") || 

             v==QString::fromAscii("1"));

  m_cb->setChecked( m_state );

  updateDefault();

  updateDependencies();

}

void InputBool::reset()

{

  setValue(m_default);

}

void InputBool::writeValue(QTextStream &t,QTextCodec *codec)

{

  if (m_state) 

    t << codec->fromUnicode(QString::fromAscii("YES")); 

  else 

    t << codec->fromUnicode(QString::fromAscii("NO"));

}