/* This file is part of the KDE project
 * Copyright (c) 2009 Jan Hambrecht <jaham@gmx.net>
 *
 * 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, or (at your option) any later version.
 *
 * 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
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this library; see the file COPYING.LIB.  If not, write to
 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA 02110-1301, USA.
 */

#include "BlurEffectConfigWidget.h"
#include "BlurEffect.h"
#include "KoFilterEffect.h"

#include <QSpinBox>
#include <klocalizedstring.h>

#include <QGridLayout>
#include <QLabel>

#include "kis_double_parse_spin_box.h"

BlurEffectConfigWidget::BlurEffectConfigWidget(QWidget *parent)
    : KoFilterEffectConfigWidgetBase(parent), m_effect(0)
{
    QGridLayout *g = new QGridLayout(this);

    g->addWidget(new QLabel(i18n("Radius"), this), 0, 0);
    m_stdDeviation = new KisDoubleParseSpinBox(this);
    m_stdDeviation->setRange(0.0, 100);
    m_stdDeviation->setSingleStep(0.5);
    g->addWidget(m_stdDeviation, 0, 1);
    setLayout(g);

    connect(m_stdDeviation, SIGNAL(valueChanged(double)), this, SLOT(stdDeviationChanged(double)));
}

bool BlurEffectConfigWidget::editFilterEffect(KoFilterEffect *filterEffect)
{
    m_effect = dynamic_cast<BlurEffect *>(filterEffect);
    if (!m_effect) {
        return false;
    }

    m_stdDeviation->setValue(m_effect->deviation().x() * 100.0);
    return true;
}

void BlurEffectConfigWidget::stdDeviationChanged(double stdDeviation)
{
    if (!m_effect) {
        return;
    }

    qreal newDev = 0.01 * stdDeviation;
    m_effect->setDeviation(QPointF(newDev, newDev));
    emit filterChanged();
}
