kis_svg_brush.cpp

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/*
 *  SPDX-FileCopyrightText: 2010 Cyrille Berger <cberger@cberger.net>
 *
 *  SPDX-License-Identifier: GPL-2.0-or-later
 */
 
#include "kis_svg_brush.h"
 
#include <QDomElement>
#include <QFileInfo>
#include <QPainter>
#include <QImageReader>
#include <QSvgRenderer>
 
KisSvgBrush::KisSvgBrush(const QString& filename)
    : KisScalingSizeBrush(filename)
{
    setBrushType(INVALID);
    setSpacing(0.25);
}
 
KisSvgBrush::KisSvgBrush(const KisSvgBrush& rhs)
    : KisScalingSizeBrush(rhs)
    , m_svg(rhs.m_svg)
{
}
 
KoResourceSP KisSvgBrush::clone() const
{
    return KoResourceSP(new KisSvgBrush(*this));
}
 
bool KisSvgBrush::loadFromDevice(QIODevice *dev, KisResourcesInterfaceSP resourcesInterface)
{
    Q_UNUSED(resourcesInterface);
 
    m_svg = dev->readAll();
 
    QSvgRenderer renderer(m_svg);
 
    QRect box = renderer.viewBox();
    if (box.isEmpty()) return false;
 
    QImage image_(1000, (1000 * box.height()) / box.width(), QImage::Format_ARGB32);
    {
        QPainter p(&image_);
        p.fillRect(0, 0, image_.width(), image_.height(), Qt::white);
        renderer.render(&p);
    }
 
    QVector<QRgb> table;
    for (int i = 0; i < 256; ++i) table.push_back(qRgb(i, i, i));
    image_ = image_.convertToFormat(QImage::Format_Indexed8, table);
 
    setBrushTipImage(image_);
 
    setValid(true);
 
    setBrushType(MASK);
 
    setWidth(brushTipImage().width());
    setHeight(brushTipImage().height());
 
    QFileInfo fi(filename());
    setName(fi.completeBaseName());
 
    return !brushTipImage().isNull() && valid();
}
 
bool KisSvgBrush::saveToDevice(QIODevice *dev) const
{
    return dev->write(m_svg.constData(), m_svg.size()) == m_svg.size();
}
 
QString KisSvgBrush::defaultFileExtension() const
{
    return QString(".svg");
}
 
void KisSvgBrush::toXML(QDomDocument& d, QDomElement& e) const
{
    predefinedBrushToXML("svg_brush", e);
    KisBrush::toXML(d, e);
}