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 * callback interface for SVG path data
 * Copyright 2007 MenTaLguY <mental@rydia.net>
 * This library is free software; you can redistribute it and/or
 * modify it either under the terms of the GNU Lesser General Public
 * License version 2.1 as published by the Free Software Foundation
 * (the "LGPL") or, at your option, under the terms of the Mozilla
 * Public License Version 1.1 (the "MPL"). If you do not alter this
 * notice, a recipient may use your version of this file under either
 * the MPL or the LGPL.
 * You should have received a copy of the LGPL along with this library
 * in the file COPYING-LGPL-2.1; if not, output to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 * You should have received a copy of the MPL along with this library
 * in the file COPYING-MPL-1.1
 * The contents of this file are subject to the Mozilla Public License
 * Version 1.1 (the "License"); you may not use this file except in
 * compliance with the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
 * OF ANY KIND, either express or implied. See the LGPL or the MPL for
 * the specific language governing rights and limitations.

#include "sbasis-to-bezier.h"
#include "svg-path.h"

namespace Geom {

void output(Curve const &curve, SVGPathSink &sink) {
    std::vector<Point> pts = sbasis_to_bezier(curve.toSBasis(), 2); //TODO: use something better!
    sink.curveTo(pts[0], pts[1], pts[2]);

void output(LineSegment const &curve, SVGPathSink &sink) {

void output(CubicBezier const &curve, SVGPathSink &sink) {
    sink.curveTo(curve[1], curve[2], curve[3]);

void output(QuadraticBezier const &curve, SVGPathSink &sink) {
    sink.quadTo(curve[1], curve[2]);

void output(SVGEllipticalArc const &curve, SVGPathSink &sink) {
    // FIXME

template <typename T>
bool output_as(Curve const &curve, SVGPathSink &sink) {
    T const *t = dynamic_cast<T const *>(&curve);
    if (t) {
        output(*t, sink);
        return true;
    } else {
        return false;

void output_svg_path(Path &path, SVGPathSink &sink) {

    Path::iterator iter;
    for ( iter = path.begin() ; iter != path.end() ; ++iter ) {
        output_as<LineSegment>(*iter, sink) ||
        output_as<CubicBezier>(*iter, sink) ||
        output_as<QuadraticBezier>(*iter, sink) ||
        output_as<SVGEllipticalArc>(*iter, sink) ||
        output_as<Curve>(*iter, sink);

    if (path.closed()) {


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