/*
 *  Here be the doEffect function chain:
 */
void
Effect::doEffect (SPCurve * curve)
{
    NArtBpath *new_bpath = doEffect(SP_CURVE_BPATH(curve));

    if (new_bpath) {        // FIXME, add function to SPCurve to change bpath? or a copy function?
        if (curve->_bpath) {
            g_free(curve->_bpath); //delete old bpath
        }
        curve->_bpath = new_bpath;
    }
}

NArtBpath *
Effect::doEffect (NArtBpath * path_in)
{
    std::vector<Geom::Path> orig_pathv = BPath_to_2GeomPath(path_in);

    std::vector<Geom::Path> result_pathv = doEffect(orig_pathv);

    NArtBpath *new_bpath = BPath_from_2GeomPath(result_pathv);

    return new_bpath;
}

std::vector<Geom::Path>
Effect::doEffect (std::vector<Geom::Path> & path_in)
{
    Geom::Piecewise<Geom::D2<Geom::SBasis> > pwd2_in;
    // FIXME: find standard function to convert std::vector<Geom::Path> ==> Piecewise< D2<SBasis> >
    for (unsigned int i=0; i < path_in.size(); i++) {
        pwd2_in.concat( path_in[i].toPwSb() );
    }

    Geom::Piecewise<Geom::D2<Geom::SBasis> > pwd2_out = doEffect(pwd2_in);

    std::vector<Geom::Path> path_out = Geom::path_from_piecewise( pwd2_out, LPE_CONVERSION_TOLERANCE);

    return path_out;
}

Geom::Piecewise<Geom::D2<Geom::SBasis> >
Effect::doEffect (Geom::Piecewise<Geom::D2<Geom::SBasis> > & pwd2_in)
{
    g_warning("Effect has no doEffect implementation");
    return pwd2_in;
}