1/*
2 * Copyright (C) Research In Motion Limited 2010. All rights reserved.
3 *
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
8 *
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
12 * Library General Public License for more details.
13 *
14 * You should have received a copy of the GNU Library General Public License
15 * along with this library; see the file COPYING.LIB.  If not, write to
16 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
17 * Boston, MA 02110-1301, USA.
18 */
19
20#include "config.h"
21
22#if ENABLE(SVG)
23#include "SVGPathSegListSource.h"
24
25#include "SVGPathSegArc.h"
26#include "SVGPathSegCurvetoCubic.h"
27#include "SVGPathSegCurvetoCubicSmooth.h"
28#include "SVGPathSegCurvetoQuadratic.h"
29#include "SVGPathSegLinetoHorizontal.h"
30#include "SVGPathSegLinetoVertical.h"
31
32namespace WebCore {
33
34SVGPathSegListSource::SVGPathSegListSource(const SVGPathSegList& pathSegList)
35    : m_pathSegList(pathSegList)
36{
37    m_itemCurrent = 0;
38    m_itemEnd = m_pathSegList.size();
39}
40
41bool SVGPathSegListSource::hasMoreData() const
42{
43    return m_itemCurrent < m_itemEnd;
44}
45
46bool SVGPathSegListSource::parseSVGSegmentType(SVGPathSegType& pathSegType)
47{
48    m_segment = m_pathSegList.at(m_itemCurrent);
49    pathSegType = static_cast<SVGPathSegType>(m_segment->pathSegType());
50    ++m_itemCurrent;
51    return true;
52}
53
54SVGPathSegType SVGPathSegListSource::nextCommand(SVGPathSegType)
55{
56    m_segment = m_pathSegList.at(m_itemCurrent);
57    SVGPathSegType pathSegType = static_cast<SVGPathSegType>(m_segment->pathSegType());
58    ++m_itemCurrent;
59    return pathSegType;
60}
61
62bool SVGPathSegListSource::parseMoveToSegment(FloatPoint& targetPoint)
63{
64    ASSERT(m_segment);
65    ASSERT(m_segment->pathSegType() == PathSegMoveToAbs || m_segment->pathSegType() == PathSegMoveToRel);
66    SVGPathSegSingleCoordinate* moveTo = static_cast<SVGPathSegSingleCoordinate*>(m_segment.get());
67    targetPoint = FloatPoint(moveTo->x(), moveTo->y());
68    return true;
69}
70
71bool SVGPathSegListSource::parseLineToSegment(FloatPoint& targetPoint)
72{
73    ASSERT(m_segment);
74    ASSERT(m_segment->pathSegType() == PathSegLineToAbs || m_segment->pathSegType() == PathSegLineToRel);
75    SVGPathSegSingleCoordinate* lineTo = static_cast<SVGPathSegSingleCoordinate*>(m_segment.get());
76    targetPoint = FloatPoint(lineTo->x(), lineTo->y());
77    return true;
78}
79
80bool SVGPathSegListSource::parseLineToHorizontalSegment(float& x)
81{
82    ASSERT(m_segment);
83    ASSERT(m_segment->pathSegType() == PathSegLineToHorizontalAbs || m_segment->pathSegType() == PathSegLineToHorizontalRel);
84    SVGPathSegLinetoHorizontal* horizontal = static_cast<SVGPathSegLinetoHorizontal*>(m_segment.get());
85    x = horizontal->x();
86    return true;
87}
88
89bool SVGPathSegListSource::parseLineToVerticalSegment(float& y)
90{
91    ASSERT(m_segment);
92    ASSERT(m_segment->pathSegType() == PathSegLineToVerticalAbs || m_segment->pathSegType() == PathSegLineToVerticalRel);
93    SVGPathSegLinetoVertical* vertical = static_cast<SVGPathSegLinetoVertical*>(m_segment.get());
94    y = vertical->y();
95    return true;
96}
97
98bool SVGPathSegListSource::parseCurveToCubicSegment(FloatPoint& point1, FloatPoint& point2, FloatPoint& targetPoint)
99{
100    ASSERT(m_segment);
101    ASSERT(m_segment->pathSegType() == PathSegCurveToCubicAbs || m_segment->pathSegType() == PathSegCurveToCubicRel);
102    SVGPathSegCurvetoCubic* cubic = static_cast<SVGPathSegCurvetoCubic*>(m_segment.get());
103    point1 = FloatPoint(cubic->x1(), cubic->y1());
104    point2 = FloatPoint(cubic->x2(), cubic->y2());
105    targetPoint = FloatPoint(cubic->x(), cubic->y());
106    return true;
107}
108
109bool SVGPathSegListSource::parseCurveToCubicSmoothSegment(FloatPoint& point2, FloatPoint& targetPoint)
110{
111    ASSERT(m_segment);
112    ASSERT(m_segment->pathSegType() == PathSegCurveToCubicSmoothAbs || m_segment->pathSegType() == PathSegCurveToCubicSmoothRel);
113    SVGPathSegCurvetoCubicSmooth* cubicSmooth = static_cast<SVGPathSegCurvetoCubicSmooth*>(m_segment.get());
114    point2 = FloatPoint(cubicSmooth->x2(), cubicSmooth->y2());
115    targetPoint = FloatPoint(cubicSmooth->x(), cubicSmooth->y());
116    return true;
117}
118
119bool SVGPathSegListSource::parseCurveToQuadraticSegment(FloatPoint& point1, FloatPoint& targetPoint)
120{
121    ASSERT(m_segment);
122    ASSERT(m_segment->pathSegType() == PathSegCurveToQuadraticAbs || m_segment->pathSegType() == PathSegCurveToQuadraticRel);
123    SVGPathSegCurvetoQuadratic* quadratic = static_cast<SVGPathSegCurvetoQuadratic*>(m_segment.get());
124    point1 = FloatPoint(quadratic->x1(), quadratic->y1());
125    targetPoint = FloatPoint(quadratic->x(), quadratic->y());
126    return true;
127}
128
129bool SVGPathSegListSource::parseCurveToQuadraticSmoothSegment(FloatPoint& targetPoint)
130{
131    ASSERT(m_segment);
132    ASSERT(m_segment->pathSegType() == PathSegCurveToQuadraticSmoothAbs || m_segment->pathSegType() == PathSegCurveToQuadraticSmoothRel);
133    SVGPathSegSingleCoordinate* quadraticSmooth = static_cast<SVGPathSegSingleCoordinate*>(m_segment.get());
134    targetPoint = FloatPoint(quadraticSmooth->x(), quadraticSmooth->y());
135    return true;
136}
137
138bool SVGPathSegListSource::parseArcToSegment(float& rx, float& ry, float& angle, bool& largeArc, bool& sweep, FloatPoint& targetPoint)
139{
140    ASSERT(m_segment);
141    ASSERT(m_segment->pathSegType() == PathSegArcAbs || m_segment->pathSegType() == PathSegArcRel);
142    SVGPathSegArc* arcTo = static_cast<SVGPathSegArc*>(m_segment.get());
143    rx = arcTo->r1();
144    ry = arcTo->r2();
145    angle = arcTo->angle();
146    largeArc = arcTo->largeArcFlag();
147    sweep = arcTo->sweepFlag();
148    targetPoint = FloatPoint(arcTo->x(), arcTo->y());
149    return true;
150}
151
152}
153
154#endif // ENABLE(SVG)
155