GradientResourceServer(const QString& type, const QString& extensions) :
KoResourceServer<KoAbstractGradient>(type, extensions)
{
const KoColorSpace* cs = KoColorSpaceRegistry::instance()->rgb8();
KoStopGradient* gradient = new KoStopGradient("");
gradient->setType(QGradient::LinearGradient);
gradient->setName("Foreground to Background");
QList<KoGradientStop> stops;
stops << KoGradientStop(0.0, KoColor(Qt::black, cs)) << KoGradientStop(1.0, KoColor(Qt::white, cs));
gradient->setStops(stops);
gradient->setValid(true);
addResource(gradient, false);
gradient = new KoStopGradient("");
gradient->setType(QGradient::LinearGradient);
gradient->setName("Foreground to Transparent");
stops.clear();
stops << KoGradientStop(0.0, KoColor(Qt::black, cs)) << KoGradientStop(1.0, KoColor(QColor(0, 0, 0, 0), cs));
gradient->setStops(stops);
gradient->setValid(true);
addResource(gradient, false);
}
KoStopGradient * KoStopGradient::fromQGradient(QGradient * gradient)
{
if (! gradient)
return 0;
KoStopGradient * newGradient = new KoStopGradient("");
newGradient->setType(gradient->type());
newGradient->setSpread(gradient->spread());
switch (gradient->type()) {
case QGradient::LinearGradient: {
QLinearGradient * g = static_cast<QLinearGradient*>(gradient);
newGradient->m_start = g->start();
newGradient->m_stop = g->finalStop();
newGradient->m_focalPoint = g->start();
break;
}
case QGradient::RadialGradient: {
QRadialGradient * g = static_cast<QRadialGradient*>(gradient);
newGradient->m_start = g->center();
newGradient->m_stop = g->center() + QPointF(g->radius(), 0);
newGradient->m_focalPoint = g->focalPoint();
break;
}
case QGradient::ConicalGradient: {
QConicalGradient * g = static_cast<QConicalGradient*>(gradient);
qreal radian = g->angle() * M_PI / 180.0;
newGradient->m_start = g->center();
newGradient->m_stop = QPointF(100.0 * cos(radian), 100.0 * sin(radian));
newGradient->m_focalPoint = g->center();
break;
}
default:
delete newGradient;
return 0;
}
Q_FOREACH (const QGradientStop & stop, gradient->stops()) {
KoColor color(newGradient->colorSpace());
color.fromQColor(stop.second);
newGradient->m_stops.append(KoGradientStop(stop.first, color));
}
return newGradient;
}