/* ============================================================
 *
 * This file is a part of digiKam project
 * http://www.digikam.org
 *
 * Date        : 2007-08-02
 * Description : save JPEG 2000 image options.
 *
 * Copyright (C) 2007 by Gilles Caulier <caulier dot gilles at gmail dot com>
 *
 * This program 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, or (at your option)
 * any later version.
 *
 * This program 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.
 *
 * ============================================================ */

// TQt includes.

#include <tqstring.h>
#include <tqlabel.h>
#include <tqcheckbox.h>
#include <tqlayout.h>
#include <tqwhatsthis.h>

// KDE includes.

#include <klocale.h>
#include <kdialog.h>
#include <knuminput.h>

// Local includes.

#include "jp2ksettings.h"
#include "jp2ksettings.moc"

namespace Digikam
{

class JP2KSettingsPriv
{

public:

    JP2KSettingsPriv()
    {
        JPEG2000Grid             = 0;
        labelJPEG2000compression = 0;
        JPEG2000compression      = 0;
        JPEG2000LossLess         = 0;
    }

    TQGridLayout  *JPEG2000Grid;

    TQLabel       *labelJPEG2000compression;

    TQCheckBox    *JPEG2000LossLess;

    KIntNumInput *JPEG2000compression;
};

JP2KSettings::JP2KSettings(TQWidget *parent)
            : TQWidget(parent, 0, TQt::WDestructiveClose)
{
    d = new JP2KSettingsPriv;

    d->JPEG2000Grid     = new TQGridLayout(this, 1, 1, KDialog::spacingHint());
    d->JPEG2000LossLess = new TQCheckBox(i18n("Lossless JPEG 2000 files"), this);

    TQWhatsThis::add(d->JPEG2000LossLess, i18n("<p>Toggle lossless compression for JPEG 2000 images.<p>"
                                              "If you enable this option, you will use a lossless method "
                                              "to compress JPEG 2000 pictures.<p>"));

    d->JPEG2000compression = new KIntNumInput(75, this);
    d->JPEG2000compression->setRange(1, 100, 1, true );
    d->labelJPEG2000compression = new TQLabel(i18n("JPEG 2000 quality:"), this);

    TQWhatsThis::add( d->JPEG2000compression, i18n("<p>The quality value for JPEG 2000 images:<p>"
                                                  "<b>1</b>: low quality (high compression and small "
                                                  "file size)<p>"
                                                  "<b>50</b>: medium quality<p>"
                                                  "<b>75</b>: good quality (default)<p>"
                                                  "<b>100</b>: high quality (no compression and "
                                                  "large file size)<p>"
                                                  "<b>Note: JPEG 2000 is not a lossless image "
                                                  "compression format when you use this setting.</b>"));

    d->JPEG2000Grid->addMultiCellWidget(d->JPEG2000LossLess, 0, 0, 0, 1);
    d->JPEG2000Grid->addMultiCellWidget(d->labelJPEG2000compression, 1, 1, 0, 0);
    d->JPEG2000Grid->addMultiCellWidget(d->JPEG2000compression, 1, 1, 1, 1);
    d->JPEG2000Grid->setColStretch(1, 10);

    connect(d->JPEG2000LossLess, TQT_SIGNAL(toggled(bool)),
            this, TQT_SLOT(slotToggleJPEG2000LossLess(bool)));

    connect(d->JPEG2000LossLess, TQT_SIGNAL(toggled(bool)),
            this, TQT_SLOT(slotToggleJPEG2000LossLess(bool)));
}

JP2KSettings::~JP2KSettings()
{
    delete d;
}

void JP2KSettings::setCompressionValue(int val)
{
    d->JPEG2000compression->setValue(val);
}

int JP2KSettings::getCompressionValue()
{
    return d->JPEG2000compression->value();
}

void JP2KSettings::setLossLessCompression(bool b)
{
    d->JPEG2000LossLess->setChecked(b);
    slotToggleJPEG2000LossLess(d->JPEG2000LossLess->isChecked());
}

bool JP2KSettings::getLossLessCompression()
{
    return d->JPEG2000LossLess->isChecked();
}

void JP2KSettings::slotToggleJPEG2000LossLess(bool b)
{
    d->JPEG2000compression->setEnabled(!b);
    d->labelJPEG2000compression->setEnabled(!b);
}

}  // namespace Digikam

