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1 /* | 1 /* |
2 * Copyright (C) 2002, 2003 The Karbon Developers | 2 * Copyright (C) 2002, 2003 The Karbon Developers |
3 * Copyright (C) 2006 Alexander Kellett <lypanov@kde.org> | 3 * Copyright (C) 2006 Alexander Kellett <lypanov@kde.org> |
4 * Copyright (C) 2006, 2007 Rob Buis <buis@kde.org> | 4 * Copyright (C) 2006, 2007 Rob Buis <buis@kde.org> |
5 * Copyright (C) 2007, 2009 Apple Inc. All rights reserved. | 5 * Copyright (C) 2007, 2009 Apple Inc. All rights reserved. |
6 * Copyright (C) Research In Motion Limited 2010. All rights reserved. | 6 * Copyright (C) Research In Motion Limited 2010. All rights reserved. |
7 * | 7 * |
8 * This library is free software; you can redistribute it and/or | 8 * This library is free software; you can redistribute it and/or |
9 * modify it under the terms of the GNU Library General Public | 9 * modify it under the terms of the GNU Library General Public |
10 * License as published by the Free Software Foundation; either | 10 * License as published by the Free Software Foundation; either |
11 * version 2 of the License, or (at your option) any later version. | 11 * version 2 of the License, or (at your option) any later version. |
12 * | 12 * |
13 * This library is distributed in the hope that it will be useful, | 13 * This library is distributed in the hope that it will be useful, |
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of | 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of |
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
16 * Library General Public License for more details. | 16 * Library General Public License for more details. |
17 * | 17 * |
18 * You should have received a copy of the GNU Library General Public License | 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 | 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, | 20 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
21 * Boston, MA 02110-1301, USA. | 21 * Boston, MA 02110-1301, USA. |
22 */ | 22 */ |
23 | 23 |
24 #include "core/svg/SVGPathParser.h" | 24 #include "core/svg/SVGPathParser.h" |
25 | 25 |
26 #include "core/svg/SVGPathConsumer.h" | 26 #include "core/svg/SVGPathConsumer.h" |
27 #include "core/svg/SVGPathSource.h" | |
28 #include "platform/transforms/AffineTransform.h" | 27 #include "platform/transforms/AffineTransform.h" |
29 #include "wtf/MathExtras.h" | 28 #include "wtf/MathExtras.h" |
30 | 29 |
31 namespace blink { | 30 namespace blink { |
32 | 31 |
33 bool SVGPathParser::initialCommandIsMoveTo() | |
34 { | |
35 // If the path is empty it is still valid, so return true. | |
36 if (!m_source->hasMoreData()) | |
37 return true; | |
38 | |
39 SVGPathSegType command = m_source->peekSegmentType(); | |
40 // Path must start with moveTo. | |
41 return command == PathSegMoveToAbs || command == PathSegMoveToRel; | |
42 } | |
43 | |
44 bool SVGPathParser::parsePath() | |
45 { | |
46 while (m_source->hasMoreData()) { | |
47 PathSegmentData segment = m_source->parseSegment(); | |
48 if (segment.command == PathSegUnknown) | |
49 return false; | |
50 | |
51 m_consumer->emitSegment(segment); | |
52 } | |
53 return true; | |
54 } | |
55 | |
56 static FloatPoint reflectedPoint(const FloatPoint& reflectIn, const FloatPoint&
pointToReflect) | 32 static FloatPoint reflectedPoint(const FloatPoint& reflectIn, const FloatPoint&
pointToReflect) |
57 { | 33 { |
58 return FloatPoint(2 * reflectIn.x() - pointToReflect.x(), 2 * reflectIn.y()
- pointToReflect.y()); | 34 return FloatPoint(2 * reflectIn.x() - pointToReflect.x(), 2 * reflectIn.y()
- pointToReflect.y()); |
59 } | 35 } |
60 | 36 |
61 // Blend the points with a ratio (1/3):(2/3). | 37 // Blend the points with a ratio (1/3):(2/3). |
62 static FloatPoint blendPoints(const FloatPoint& p1, const FloatPoint& p2) | 38 static FloatPoint blendPoints(const FloatPoint& p1, const FloatPoint& p2) |
63 { | 39 { |
64 const float oneOverThree = 1 / 3.f; | 40 const float oneOverThree = 1 / 3.f; |
65 return FloatPoint((p1.x() + 2 * p2.x()) * oneOverThree, (p1.y() + 2 * p2.y()
) * oneOverThree); | 41 return FloatPoint((p1.x() + 2 * p2.x()) * oneOverThree, (p1.y() + 2 * p2.y()
) * oneOverThree); |
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291 cubicSegment.point1 = pointTransform.mapPoint(point1); | 267 cubicSegment.point1 = pointTransform.mapPoint(point1); |
292 cubicSegment.point2 = pointTransform.mapPoint(point2); | 268 cubicSegment.point2 = pointTransform.mapPoint(point2); |
293 cubicSegment.targetPoint = pointTransform.mapPoint(targetPoint); | 269 cubicSegment.targetPoint = pointTransform.mapPoint(targetPoint); |
294 | 270 |
295 m_consumer->emitSegment(cubicSegment); | 271 m_consumer->emitSegment(cubicSegment); |
296 } | 272 } |
297 return true; | 273 return true; |
298 } | 274 } |
299 | 275 |
300 } // namespace blink | 276 } // namespace blink |
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