dom/svg/SVGArcConverter.h

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #ifndef DOM_SVG_SVGARCCONVERTER_H_
   8 #define DOM_SVG_SVGARCCONVERTER_H_
   9
  10 #include "mozilla/gfx/Point.h"
  11
  12 namespace mozilla {
  13
  14 class MOZ_STACK_CLASS SVGArcConverter {
  15   using Point = mozilla::gfx::Point;
  16
  17  public:
  18   SVGArcConverter(const Point& from, const Point& to, const Point& radii,
  19                   double angle, bool largeArcFlag, bool sweepFlag);
  20   bool GetNextSegment(Point* cp1, Point* cp2, Point* to);
  21
  22  protected:
  23   int32_t mNumSegs, mSegIndex;
  24   double mTheta, mDelta, mT;
  25   double mSinPhi, mCosPhi;
  26   double mRx, mRy;
  27   Point mFrom, mC;
  28 };
  29
  30 }  // namespace mozilla
  31
  32 #endif  // DOM_SVG_SVGARCCONVERTER_H_