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#include "core/svg/SVGPathSegListSource.h"
23
24#include "core/svg/SVGPathSegArc.h"
25#include "core/svg/SVGPathSegCurvetoCubic.h"
26#include "core/svg/SVGPathSegCurvetoCubicSmooth.h"
27#include "core/svg/SVGPathSegCurvetoQuadratic.h"
28#include "core/svg/SVGPathSegLinetoHorizontal.h"
29#include "core/svg/SVGPathSegLinetoVertical.h"
30
31namespace WebCore {
32
33SVGPathSegListSource::SVGPathSegListSource(const SVGPathSegList& pathSegList)
34    : m_pathSegList(pathSegList)
35{
36    m_itemCurrent = 0;
37    m_itemEnd = m_pathSegList.size();
38}
39
40bool SVGPathSegListSource::hasMoreData() const
41{
42    return m_itemCurrent < m_itemEnd;
43}
44
45bool SVGPathSegListSource::parseSVGSegmentType(SVGPathSegType& pathSegType)
46{
47    m_segment = m_pathSegList.at(m_itemCurrent);
48    pathSegType = static_cast<SVGPathSegType>(m_segment->pathSegType());
49    ++m_itemCurrent;
50    return true;
51}
52
53SVGPathSegType SVGPathSegListSource::nextCommand(SVGPathSegType)
54{
55    m_segment = m_pathSegList.at(m_itemCurrent);
56    SVGPathSegType pathSegType = static_cast<SVGPathSegType>(m_segment->pathSegType());
57    ++m_itemCurrent;
58    return pathSegType;
59}
60
61bool SVGPathSegListSource::parseMoveToSegment(FloatPoint& targetPoint)
62{
63    ASSERT(m_segment);
64    ASSERT(m_segment->pathSegType() == PathSegMoveToAbs || m_segment->pathSegType() == PathSegMoveToRel);
65    SVGPathSegSingleCoordinate* moveTo = static_cast<SVGPathSegSingleCoordinate*>(m_segment.get());
66    targetPoint = FloatPoint(moveTo->x(), moveTo->y());
67    return true;
68}
69
70bool SVGPathSegListSource::parseLineToSegment(FloatPoint& targetPoint)
71{
72    ASSERT(m_segment);
73    ASSERT(m_segment->pathSegType() == PathSegLineToAbs || m_segment->pathSegType() == PathSegLineToRel);
74    SVGPathSegSingleCoordinate* lineTo = static_cast<SVGPathSegSingleCoordinate*>(m_segment.get());
75    targetPoint = FloatPoint(lineTo->x(), lineTo->y());
76    return true;
77}
78
79bool SVGPathSegListSource::parseLineToHorizontalSegment(float& x)
80{
81    ASSERT(m_segment);
82    ASSERT(m_segment->pathSegType() == PathSegLineToHorizontalAbs || m_segment->pathSegType() == PathSegLineToHorizontalRel);
83    SVGPathSegLinetoHorizontal* horizontal = static_cast<SVGPathSegLinetoHorizontal*>(m_segment.get());
84    x = horizontal->x();
85    return true;
86}
87
88bool SVGPathSegListSource::parseLineToVerticalSegment(float& y)
89{
90    ASSERT(m_segment);
91    ASSERT(m_segment->pathSegType() == PathSegLineToVerticalAbs || m_segment->pathSegType() == PathSegLineToVerticalRel);
92    SVGPathSegLinetoVertical* vertical = static_cast<SVGPathSegLinetoVertical*>(m_segment.get());
93    y = vertical->y();
94    return true;
95}
96
97bool SVGPathSegListSource::parseCurveToCubicSegment(FloatPoint& point1, FloatPoint& point2, FloatPoint& targetPoint)
98{
99    ASSERT(m_segment);
100    ASSERT(m_segment->pathSegType() == PathSegCurveToCubicAbs || m_segment->pathSegType() == PathSegCurveToCubicRel);
101    SVGPathSegCurvetoCubic* cubic = static_cast<SVGPathSegCurvetoCubic*>(m_segment.get());
102    point1 = FloatPoint(cubic->x1(), cubic->y1());
103    point2 = FloatPoint(cubic->x2(), cubic->y2());
104    targetPoint = FloatPoint(cubic->x(), cubic->y());
105    return true;
106}
107
108bool SVGPathSegListSource::parseCurveToCubicSmoothSegment(FloatPoint& point2, FloatPoint& targetPoint)
109{
110    ASSERT(m_segment);
111    ASSERT(m_segment->pathSegType() == PathSegCurveToCubicSmoothAbs || m_segment->pathSegType() == PathSegCurveToCubicSmoothRel);
112    SVGPathSegCurvetoCubicSmooth* cubicSmooth = static_cast<SVGPathSegCurvetoCubicSmooth*>(m_segment.get());
113    point2 = FloatPoint(cubicSmooth->x2(), cubicSmooth->y2());
114    targetPoint = FloatPoint(cubicSmooth->x(), cubicSmooth->y());
115    return true;
116}
117
118bool SVGPathSegListSource::parseCurveToQuadraticSegment(FloatPoint& point1, FloatPoint& targetPoint)
119{
120    ASSERT(m_segment);
121    ASSERT(m_segment->pathSegType() == PathSegCurveToQuadraticAbs || m_segment->pathSegType() == PathSegCurveToQuadraticRel);
122    SVGPathSegCurvetoQuadratic* quadratic = static_cast<SVGPathSegCurvetoQuadratic*>(m_segment.get());
123    point1 = FloatPoint(quadratic->x1(), quadratic->y1());
124    targetPoint = FloatPoint(quadratic->x(), quadratic->y());
125    return true;
126}
127
128bool SVGPathSegListSource::parseCurveToQuadraticSmoothSegment(FloatPoint& targetPoint)
129{
130    ASSERT(m_segment);
131    ASSERT(m_segment->pathSegType() == PathSegCurveToQuadraticSmoothAbs || m_segment->pathSegType() == PathSegCurveToQuadraticSmoothRel);
132    SVGPathSegSingleCoordinate* quadraticSmooth = static_cast<SVGPathSegSingleCoordinate*>(m_segment.get());
133    targetPoint = FloatPoint(quadraticSmooth->x(), quadraticSmooth->y());
134    return true;
135}
136
137bool SVGPathSegListSource::parseArcToSegment(float& rx, float& ry, float& angle, bool& largeArc, bool& sweep, FloatPoint& targetPoint)
138{
139    ASSERT(m_segment);
140    ASSERT(m_segment->pathSegType() == PathSegArcAbs || m_segment->pathSegType() == PathSegArcRel);
141    SVGPathSegArc* arcTo = static_cast<SVGPathSegArc*>(m_segment.get());
142    rx = arcTo->r1();
143    ry = arcTo->r2();
144    angle = arcTo->angle();
145    largeArc = arcTo->largeArcFlag();
146    sweep = arcTo->sweepFlag();
147    targetPoint = FloatPoint(arcTo->x(), arcTo->y());
148    return true;
149}
150
151}
152