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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
commit26a029d407be480d791972afb5975cf62c9360a6 (patch)
treef435a8308119effd964b339f76abb83a57c29483 /dom/svg/SVGPathDataParser.h
parentInitial commit. (diff)
downloadfirefox-e51783d008170d9ab27d25da98ca3a38b0a41b67.tar.xz
firefox-e51783d008170d9ab27d25da98ca3a38b0a41b67.zip
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r--dom/svg/SVGPathDataParser.h74
1 files changed, 74 insertions, 0 deletions
diff --git a/dom/svg/SVGPathDataParser.h b/dom/svg/SVGPathDataParser.h
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+/* -*- 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_