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

 *

 * 

 *

 * Copyright (C) 1997-2015 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 "inputint.h"

#include "helplabel.h"

#include <QSpinBox>

#include <QGridLayout>

#include <QWheelEvent>

#include <QTextStream>

class NoWheelSpinBox : public QSpinBox

{

  protected:

    void wheelEvent(QWheelEvent *e)

    {

      e->ignore();

    }

};

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

                    const QString & id, 

                    int defVal, int minVal,int maxVal,

                    const QString & docs )

  : m_default(defVal), m_minVal(minVal), m_maxVal(maxVal), m_docs(docs), m_id(id)

{

  m_lab = new HelpLabel(id);

  m_sp  = new NoWheelSpinBox;

  m_sp->setMinimum(minVal);

  m_sp->setMaximum(maxVal);

  m_sp->setSingleStep(1);

  m_val=defVal-1; // force update

  setValue(defVal);

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

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

  connect(m_sp, SIGNAL(valueChanged(int)), 

          this, SLOT(setValue(int)) );

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

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

  row++;

}

void InputInt::help()

{

  showHelp(this);

}

void InputInt::setValue(int val)

{

  val = qMax(m_minVal,val);

  val = qMin(m_maxVal,val);

  if (val!=m_val) 

  {

    m_val = val;

    m_sp->setValue(val);

    m_value = m_val;

    updateDefault();

  }

}

void InputInt::updateDefault()

{

  {

    if (m_val==m_default || !m_lab->isEnabled())

    {

      m_lab->setText(QString::fromLatin1("<qt>")+m_id+QString::fromLatin1("

    }

    else

    {

      m_lab->setText(QString::fromLatin1("<qt><font color='red'>")+m_id+QString::fromLatin1("</font></qt>"));

    }

    emit changed(); 

  }

}

void InputInt::setEnabled(bool state)

{

  m_lab->setEnabled(state);

  m_sp->setEnabled(state);

  updateDefault();

}

QVariant &InputInt::value() 

{

  return m_value;

}

void InputInt::update()

{

  setValue(m_value.toInt());

}

void InputInt::reset()

{

  setValue(m_default);

}

void InputInt::writeValue(QTextStream &t,QTextCodec *)

{

  t << m_val;

}