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/* 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 "CompositeEffectConfigWidget.h"
#include "CompositeEffect.h"
#include "KoFilterEffect.h"
#include <QSpinBox>
#include <kcombobox.h>
#include <klocalizedstring.h>
#include <QGridLayout>
#include <QLabel>
CompositeEffectConfigWidget::CompositeEffectConfigWidget(QWidget *parent)
: KoFilterEffectConfigWidgetBase(parent), m_effect(0)
{
QGridLayout * g = new QGridLayout(this);
g->addWidget(new QLabel(i18n("Operation"), this), 0, 0);
m_operation = new KComboBox(this);
m_operation->addItem("Over");
m_operation->addItem("In");
m_operation->addItem("Out");
m_operation->addItem("Atop");
m_operation->addItem("Xor");
m_operation->addItem("Arithmetic");
g->addWidget(m_operation, 0, 1);
m_arithmeticWidget = new QWidget(this);
QGridLayout * arithmeticLayout = new QGridLayout(m_arithmeticWidget);
for (int i = 0; i < 4; ++i) {
m_k[i] = new QDoubleSpinBox(m_arithmeticWidget);
arithmeticLayout->addWidget(new QLabel(QString("k%1").arg(i + 1)), i / 2, (2*i) % 4);
arithmeticLayout->addWidget(m_k[i], i / 2, (2*i + 1) % 4);
connect(m_k[i], SIGNAL(valueChanged(double)), this, SLOT(valueChanged()));
}
m_arithmeticWidget->setContentsMargins(0, 0, 0, 0);
g->addWidget(m_arithmeticWidget, 1, 0, 1, 2);
g->addItem(new QSpacerItem(0, 1, QSizePolicy::Minimum, QSizePolicy::MinimumExpanding), 2, 0);
connect(m_operation, SIGNAL(currentIndexChanged(int)), this, SLOT(operationChanged(int)));
}
bool CompositeEffectConfigWidget::editFilterEffect(KoFilterEffect * filterEffect)
{
m_effect = dynamic_cast<CompositeEffect*>(filterEffect);
if (!m_effect)
return false;
m_operation->blockSignals(true);
m_operation->setCurrentIndex(m_effect->operation());
m_operation->blockSignals(false);
const qreal * k = m_effect->arithmeticValues();
for (int i = 0; i < 4; ++i) {
m_k[i]->blockSignals(true);
m_k[i]->setValue(k[i]);
m_k[i]->blockSignals(false);
}
m_arithmeticWidget->setVisible(m_effect->operation() == CompositeEffect::Arithmetic);
return true;
}
void CompositeEffectConfigWidget::operationChanged(int index)
{
m_arithmeticWidget->setVisible(index == 6);
if (m_effect) {
m_effect->setOperation(static_cast<CompositeEffect::Operation>(index));
emit filterChanged();
}
}
void CompositeEffectConfigWidget::valueChanged()
{
if (!m_effect)
return;
qreal k[4] = {0};
for (int i = 0; i < 4; ++i) {
k[i] = m_k[i]->value();
}
m_effect->setArithmeticValues(k);
emit filterChanged();
}
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