C++ (Cpp) KoFilterEffectRenderContext::viewConverter Beispiele

Beispiel #1

Datei: BlurEffect.cpp Projekt: KDE/calligra-history

QImage BlurEffect::processImage(const QImage &image, const KoFilterEffectRenderContext &context) const
{
    if (m_deviation.x() == 0.0 || m_deviation.y() == 0.0)
        return image;

    // TODO: take filter region into account
    // TODO: blur with different kernels in x and y
    // convert from bounding box coordinates
    QPointF dev = context.toUserSpace(m_deviation);
    // transform to view coordinates
    dev = context.viewConverter()->documentToView(dev);

    QImage result = image;
    fastbluralpha(result, dev.x());

    return result;
}