60ae957cbeb2d09a32216c5ea96d1f838bb1e65d
1 /*
2 * callback interface for SVG path data
3 *
4 * Copyright 2007 MenTaLguY <mental@rydia.net>
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it either under the terms of the GNU Lesser General Public
8 * License version 2.1 as published by the Free Software Foundation
9 * (the "LGPL") or, at your option, under the terms of the Mozilla
10 * Public License Version 1.1 (the "MPL"). If you do not alter this
11 * notice, a recipient may use your version of this file under either
12 * the MPL or the LGPL.
13 *
14 * You should have received a copy of the LGPL along with this library
15 * in the file COPYING-LGPL-2.1; if not, output to the Free Software
16 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17 * You should have received a copy of the MPL along with this library
18 * in the file COPYING-MPL-1.1
19 *
20 * The contents of this file are subject to the Mozilla Public License
21 * Version 1.1 (the "License"); you may not use this file except in
22 * compliance with the License. You may obtain a copy of the License at
23 * http://www.mozilla.org/MPL/
24 *
25 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
26 * OF ANY KIND, either express or implied. See the LGPL or the MPL for
27 * the specific language governing rights and limitations.
28 *
29 */
31 #include "sbasis-to-bezier.h"
32 #include "svg-path.h"
34 namespace Geom {
36 void output(Curve const &curve, SVGPathSink &sink) {
37 std::vector<Point> pts = sbasis_to_bezier(curve.toSBasis(), 2); //TODO: use something better!
38 sink.curveTo(pts[0], pts[1], pts[2]);
39 }
41 void output(LineSegment const &curve, SVGPathSink &sink) {
42 sink.lineTo(curve[1]);
43 }
45 void output(CubicBezier const &curve, SVGPathSink &sink) {
46 sink.curveTo(curve[1], curve[2], curve[3]);
47 }
49 void output(QuadraticBezier const &curve, SVGPathSink &sink) {
50 sink.quadTo(curve[1], curve[2]);
51 }
53 void output(SVGEllipticalArc const &/*curve*/, SVGPathSink &/*sink*/) {
54 // FIXME
55 }
57 template <typename T>
58 bool output_as(Curve const &curve, SVGPathSink &sink) {
59 T const *t = dynamic_cast<T const *>(&curve);
60 if (t) {
61 output(*t, sink);
62 return true;
63 } else {
64 return false;
65 }
66 }
68 void output_svg_path(Path &path, SVGPathSink &sink) {
69 sink.moveTo(path.front().initialPoint());
71 Path::iterator iter;
72 for ( iter = path.begin() ; iter != path.end() ; ++iter ) {
73 output_as<LineSegment>(*iter, sink) ||
74 output_as<CubicBezier>(*iter, sink) ||
75 output_as<QuadraticBezier>(*iter, sink) ||
76 output_as<SVGEllipticalArc>(*iter, sink) ||
77 output_as<Curve>(*iter, sink);
78 }
80 if (path.closed()) {
81 sink.closePath();
82 }
83 sink.finish();
84 }
86 }
88 /*
89 Local Variables:
90 mode:c++
91 c-file-style:"stroustrup"
92 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
93 indent-tabs-mode:nil
94 fill-column:99
95 End:
96 */
97 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :