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#include "core/svg/SVGPathBuilder.h"
26
27#include "platform/graphics/Path.h"
28
29namespace WebCore {
30
31SVGPathBuilder::SVGPathBuilder()
32    : m_path(0)
33{
34}
35
36void 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
45void 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
52void 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
64void SVGPathBuilder::closePath()
65{
66    ASSERT(m_path);
67    m_path->closeSubpath();
68}
69
70}
71