From 6bf0a5cb5034a7e684dcc3500e841785237ce2dd Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 19:32:43 +0200 Subject: Adding upstream version 1:115.7.0. Signed-off-by: Daniel Baumann --- dom/svg/SVGPathDataParser.h | 74 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 74 insertions(+) create mode 100644 dom/svg/SVGPathDataParser.h (limited to 'dom/svg/SVGPathDataParser.h') diff --git a/dom/svg/SVGPathDataParser.h b/dom/svg/SVGPathDataParser.h new file mode 100644 index 0000000000..02073f7f4e --- /dev/null +++ b/dom/svg/SVGPathDataParser.h @@ -0,0 +1,74 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ts=8 sts=2 et sw=2 tw=80: */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#ifndef DOM_SVG_SVGPATHDATAPARSER_H_ +#define DOM_SVG_SVGPATHDATAPARSER_H_ + +#include "mozilla/Attributes.h" +#include "mozilla/gfx/Point.h" +#include "SVGDataParser.h" + +namespace mozilla { +class SVGPathData; + +//////////////////////////////////////////////////////////////////////// +// SVGPathDataParser: a simple recursive descent parser that builds +// DOMSVGPathSegs from path data strings. The grammar for path data +// can be found in SVG CR 20001102, chapter 8. + +class SVGPathDataParser : public SVGDataParser { + public: + SVGPathDataParser(const nsAString& aValue, mozilla::SVGPathData* aList) + : SVGDataParser(aValue), mPathSegList(aList) { + MOZ_ASSERT(aList, "null path data"); + } + + bool Parse(); + + private: + bool ParseCoordPair(float& aX, float& aY); + bool ParseFlag(bool& aFlag); + + bool ParsePath(); + bool IsStartOfSubPath() const; + bool ParseSubPath(); + + bool ParseSubPathElements(); + bool ParseSubPathElement(char16_t aCommandType, bool aAbsCoords); + + bool ParseMoveto(); + bool ParseClosePath(); + bool ParseLineto(bool aAbsCoords); + bool ParseHorizontalLineto(bool aAbsCoords); + bool ParseVerticalLineto(bool aAbsCoords); + bool ParseCurveto(bool aAbsCoords); + bool ParseSmoothCurveto(bool aAbsCoords); + bool ParseQuadBezierCurveto(bool aAbsCoords); + bool ParseSmoothQuadBezierCurveto(bool aAbsCoords); + bool ParseEllipticalArc(bool aAbsCoords); + + mozilla::SVGPathData* const mPathSegList; +}; + +class SVGArcConverter { + using Point = mozilla::gfx::Point; + + public: + SVGArcConverter(const Point& from, const Point& to, const Point& radii, + double angle, bool largeArcFlag, bool sweepFlag); + bool GetNextSegment(Point* cp1, Point* cp2, Point* to); + + protected: + int32_t mNumSegs, mSegIndex; + double mTheta, mDelta, mT; + double mSinPhi, mCosPhi; + double mRx, mRy; + Point mFrom, mC; +}; + +} // namespace mozilla + +#endif // DOM_SVG_SVGPATHDATAPARSER_H_ -- cgit v1.2.3