File indexing completed on 2024-05-12 16:34:29 

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 "FloodEffect.h"
0021 #include "KoFilterEffectRenderContext.h"
0022 #include "KoViewConverter.h"
0023 #include "KoXmlWriter.h"
0024 #include "KoXmlReader.h"
0025 #include <klocalizedstring.h>
0026 #include <QPainter>
0027 
0028 FloodEffect::FloodEffect()
0029         : KoFilterEffect(FloodEffectId, i18n("Flood fill"))
0030         , m_color(Qt::black)
0031 {
0032 }
0033 
0034 QColor FloodEffect::floodColor() const
0035 {
0036     return m_color;
0037 }
0038 
0039 void FloodEffect::setFloodColor(const QColor &color)
0040 {
0041     m_color = color;
0042 }
0043 
0044 QImage FloodEffect::processImage(const QImage &image, const KoFilterEffectRenderContext &context) const
0045 {
0046     QImage result = image;
0047     QPainter painter(&result);
0048     painter.fillRect(context.filterRegion(), m_color);
0049 
0050     return result;
0051 }
0052 
0053 bool FloodEffect::load(const KoXmlElement &element, const KoFilterEffectLoadingContext &)
0054 {
0055     if (element.tagName() != id())
0056         return false;
0057 
0058     m_color = Qt::black;
0059 
0060     if (element.hasAttribute("flood-color")) {
0061         QString colorStr = element.attribute("flood-color").trimmed();
0062         if (colorStr.startsWith(QLatin1String("rgb("))) {
0063             QStringList channels = colorStr.mid(4, colorStr.length() - 5).split(',');
0064             float r = channels[0].toDouble();
0065             if (channels[0].contains('%'))
0066                 r /= 100.0;
0067             else
0068                 r /= 255.0;
0069             float g = channels[1].toDouble();
0070             if (channels[1].contains('%'))
0071                 g /= 100.0;
0072             else
0073                 g /= 255.0;
0074             float b = channels[2].toDouble();
0075             if (channels[2].contains('%'))
0076                 b /= 100.0;
0077             else
0078                 b /= 255.0;
0079             m_color.setRgbF(r, g, b);
0080 
0081         } else {
0082             m_color.setNamedColor(colorStr);
0083         }
0084         // TODO: add support for currentColor
0085     }
0086 
0087     if (element.hasAttribute("flood-opacity"))
0088         m_color.setAlphaF(element.attribute("flood-opacity").toDouble());
0089 
0090     return true;
0091 }
0092 
0093 void FloodEffect::save(KoXmlWriter &writer)
0094 {
0095     writer.startElement(FloodEffectId);
0096 
0097     saveCommonAttributes(writer);
0098 
0099     writer.addAttribute("flood-color", m_color.name());
0100     if (m_color.alpha() < 255)
0101         writer.addAttribute("flood-opacity", QString("%1").arg(m_color.alphaF()));
0102 
0103     writer.endElement();
0104 }