File indexing completed on 2024-05-12 16:34:27 

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 "BlendEffectConfigWidget.h"
0021 #include "BlendEffect.h"
0022 #include "KoFilterEffect.h"
0023 
0024 #include <kcombobox.h>
0025 #include <klocalizedstring.h>
0026 
0027 #include <QGridLayout>
0028 #include <QLabel>
0029 
0030 BlendEffectConfigWidget::BlendEffectConfigWidget(QWidget *parent)
0031         : KoFilterEffectConfigWidgetBase(parent), m_effect(0)
0032 {
0033     QGridLayout * g = new QGridLayout(this);
0034 
0035     g->addWidget(new QLabel(i18n("Blend mode"), this), 0, 0);
0036     m_mode = new KComboBox(this);
0037     m_mode->addItem(i18n("Normal"));
0038     m_mode->addItem(i18n("Multiply"));
0039     m_mode->addItem(i18n("Screen"));
0040     m_mode->addItem(i18n("Darken"));
0041     m_mode->addItem(i18n("Lighten"));
0042     g->addWidget(m_mode, 0, 1);
0043     g->addItem(new QSpacerItem(0, 1, QSizePolicy::Minimum, QSizePolicy::MinimumExpanding), 1, 0);
0044 
0045     setLayout(g);
0046 
0047     connect(m_mode, SIGNAL(currentIndexChanged(int)), this, SLOT(modeChanged(int)));
0048 }
0049 
0050 bool BlendEffectConfigWidget::editFilterEffect(KoFilterEffect * filterEffect)
0051 {
0052     m_effect = dynamic_cast<BlendEffect*>(filterEffect);
0053     if (!m_effect)
0054         return false;
0055 
0056     m_mode->blockSignals(true);
0057 
0058     switch (m_effect->blendMode()) {
0059     case BlendEffect::Normal:
0060         m_mode->setCurrentIndex(0);
0061         break;
0062     case BlendEffect::Multiply:
0063         m_mode->setCurrentIndex(1);
0064         break;
0065     case BlendEffect::Screen:
0066         m_mode->setCurrentIndex(2);
0067         break;
0068     case BlendEffect::Darken:
0069         m_mode->setCurrentIndex(3);
0070         break;
0071     case BlendEffect::Lighten:
0072         m_mode->setCurrentIndex(4);
0073         break;
0074     }
0075 
0076     m_mode->blockSignals(false);
0077 
0078     return true;
0079 }
0080 
0081 void BlendEffectConfigWidget::modeChanged(int index)
0082 {
0083     if (!m_effect)
0084         return;
0085 
0086     m_effect->setBlendMode(static_cast<BlendEffect::BlendMode>(index));
0087 
0088     emit filterChanged();
0089 }