/******************************************************************************
*
* Copyright (C) 2002 Hugo PEREIRA <mailto: hugo.pereira@free.fr>
*
* This is free software; you can redistribute it and/or modify it under the
* terms of the GNU General Public License as published by the Free Software
* Foundation; either version 2 of the License, or (at your option) any later
* version.
*
* This software 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 General Public License
* for more details.
*
* You should have received a copy of the GNU General Public License along with
* this program.  If not, see <http://www.gnu.org/licenses/>.
*
*******************************************************************************/

#include "CustomSlider.h"
#include "Debug.h"
#include "InformationDialog.h"

#include <QHBoxLayout>

//_________________________________________________________
CustomSlider::CustomSlider( QWidget* parent ):
    QWidget( parent ),
    Counter( "CustomSlider" )
{
    Debug::Throw( "CustomSlider::CustomSlider.\n" );

    setLayout( new QHBoxLayout );
    layout()->setMargin(0);
    layout()->setSpacing(5);

    layout()->addWidget( slider_ = new QSlider( Qt::Horizontal, this ) );
    layout()->addWidget( spinBox_ = new QSpinBox( this ) );

    connect( spinBox_, SIGNAL(valueChanged(int)),   SLOT(_updateSlider(int)) );
    connect( spinBox_, SIGNAL(valueChanged(int)),   SIGNAL(valueChanged(int)) );
    connect( slider_, SIGNAL(valueChanged(int)),  SLOT(_updateSpinBox(int)) );
    connect( slider_, SIGNAL(valueChanged(int)),  SIGNAL(valueChanged(int)) );

}

//_________________________________________________________
void CustomSlider::setValue( int value )
{
    if( value < slider_->minimum() || value > slider_->maximum() ) {
        InformationDialog( this, tr( "Invalid value" ) ).exec();
        return;
    }

    slider_->setValue( value );
    _updateSpinBox( value );
}

//_________________________________________________________
void CustomSlider::_updateSlider( int value )
{
    Debug::Throw( "CustomSlider::_updateSlider.\n" );

    if( sliderLocked_ )
    {
        sliderLocked_ = false;
        return;
    }

    if( value < slider_->minimum() || value > slider_->maximum() )
    {
        InformationDialog( this, tr( "Invalid value" ) ).exec();
        return;
    }

    spinBoxLocked_ = true;
    slider_->setValue( value );
    return;
}

//_________________________________________________________
void CustomSlider::_updateSpinBox( int value )
{

    if( spinBoxLocked_ )
    {
        spinBoxLocked_ = false;
        return;
    }

    sliderLocked_ = true;
    spinBox_->setValue( value );
    return;
}