1 /*
2 * Copyright (C) 2002, 2003 The Karbon Developers
3 * Copyright (C) 2006 Alexander Kellett <lypanov@kde.org>
4 * Copyright (C) 2006, 2007 Rob Buis <buis@kde.org>
5 * Copyright (C) 2007, 2009 Apple Inc. All rights reserved.
6 * Copyright (C) Research In Motion Limited 2010. All rights reserved.
7 *
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Library General Public
10 * License as published by the Free Software Foundation; either
11 * version 2 of the License, or (at your option) any later version.
12 *
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Library General Public License for more details.
17 *
18 * You should have received a copy of the GNU Library General Public License
19 * along with this library; see the file COPYING.LIB. If not, write to
20 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
21 * Boston, MA 02110-1301, USA.
22 */
23
24 #include "config.h"
25
26 #if ENABLE(SVG)
27 #include "SVGPathBuilder.h"
28
29 namespace WebCore {
30
SVGPathBuilder()31 SVGPathBuilder::SVGPathBuilder()
32 : m_path(0)
33 {
34 }
35
moveTo(const FloatPoint & targetPoint,bool closed,PathCoordinateMode mode)36 void SVGPathBuilder::moveTo(const FloatPoint& targetPoint, bool closed, PathCoordinateMode mode)
37 {
38 ASSERT(m_path);
39 m_current = mode == AbsoluteCoordinates ? targetPoint : m_current + targetPoint;
40 if (closed && !m_path->isEmpty())
41 m_path->closeSubpath();
42 m_path->moveTo(m_current);
43 }
44
lineTo(const FloatPoint & targetPoint,PathCoordinateMode mode)45 void SVGPathBuilder::lineTo(const FloatPoint& targetPoint, PathCoordinateMode mode)
46 {
47 ASSERT(m_path);
48 m_current = mode == AbsoluteCoordinates ? targetPoint : m_current + targetPoint;
49 m_path->addLineTo(m_current);
50 }
51
curveToCubic(const FloatPoint & point1,const FloatPoint & point2,const FloatPoint & targetPoint,PathCoordinateMode mode)52 void SVGPathBuilder::curveToCubic(const FloatPoint& point1, const FloatPoint& point2, const FloatPoint& targetPoint, PathCoordinateMode mode)
53 {
54 ASSERT(m_path);
55 if (mode == RelativeCoordinates) {
56 m_path->addBezierCurveTo(m_current + point1, m_current + point2, m_current + targetPoint);
57 m_current += targetPoint;
58 } else {
59 m_current = targetPoint;
60 m_path->addBezierCurveTo(point1, point2, m_current);
61 }
62 }
63
closePath()64 void SVGPathBuilder::closePath()
65 {
66 ASSERT(m_path);
67 m_path->closeSubpath();
68 }
69
70 }
71
72 #endif // ENABLE(SVG)
73