File indexing completed on 2024-05-12 16:34:30 

0001 /* This file is part of the KDE project
0002  * Copyright (c) 2009 Jan Hambrecht <jaham@gmx.net>
0003  *
0004  * This library is free software; you can redistribute it and/or
0005  * modify it under the terms of the GNU Lesser General Public
0006  * License as published by the Free Software Foundation; either
0007  * version 2.1 of the License, or (at your option) any later version.
0008  *
0009  * This library is distributed in the hope that it will be useful,
0010  * but WITHOUT ANY WARRANTY; without even the implied warranty of
0011  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
0012  * Library General Public License for more details.
0013  *
0014  * You should have received a copy of the GNU Lesser General Public License
0015  * along with this library; see the file COPYING.LIB.  If not, write to
0016  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
0017  * Boston, MA 02110-1301, USA.
0018  */
0019 
0020 #include "OffsetEffectConfigWidget.h"
0021 #include "OffsetEffect.h"
0022 #include "KoFilterEffect.h"
0023 #include <QSpinBox>
0024 #include <klocalizedstring.h>
0025 #include <QGridLayout>
0026 #include <QLabel>
0027 
0028 const qreal OffsetLimit = 100.0;
0029 
0030 OffsetEffectConfigWidget::OffsetEffectConfigWidget(QWidget *parent)
0031         : KoFilterEffectConfigWidgetBase(parent), m_effect(0)
0032 {
0033     QGridLayout * g = new QGridLayout(this);
0034 
0035     g->addWidget(new QLabel(i18n("dx"), this), 0, 0);
0036     m_offsetX = new QDoubleSpinBox(this);
0037     m_offsetX->setRange(-OffsetLimit, OffsetLimit);
0038     m_offsetX->setSingleStep(1.0);
0039     g->addWidget(m_offsetX, 0, 1);
0040 
0041     g->addWidget(new QLabel(i18n("dy"), this), 0, 2);
0042     m_offsetY = new QDoubleSpinBox(this);
0043     m_offsetY->setRange(-OffsetLimit, OffsetLimit);
0044     m_offsetY->setSingleStep(1.0);
0045     g->addWidget(m_offsetY, 0, 3);
0046     setLayout(g);
0047 
0048     connect(m_offsetX, SIGNAL(valueChanged(double)), this, SLOT(offsetChanged(double)));
0049     connect(m_offsetY, SIGNAL(valueChanged(double)), this, SLOT(offsetChanged(double)));
0050 }
0051 
0052 bool OffsetEffectConfigWidget::editFilterEffect(KoFilterEffect * filterEffect)
0053 {
0054     m_effect = dynamic_cast<OffsetEffect*>(filterEffect);
0055     if (!m_effect)
0056         return false;
0057 
0058     m_offsetX->blockSignals(true);
0059     m_offsetY->blockSignals(true);
0060     m_offsetX->setValue(m_effect->offset().x()*100.0);
0061     m_offsetY->setValue(m_effect->offset().y()*100.0);
0062     m_offsetX->blockSignals(false);
0063     m_offsetY->blockSignals(false);
0064 
0065     return true;
0066 }
0067 
0068 void OffsetEffectConfigWidget::offsetChanged(double /*offset*/)
0069 {
0070     if (!m_effect)
0071         return;
0072 
0073     m_effect->setOffset(0.01*QPointF(m_offsetX->value(), m_offsetY->value()));
0074     emit filterChanged();
0075 }