dom/svg/SVGTransformListParser.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_SVGTRANSFORMLISTPARSER_H_
   8 #define DOM_SVG_SVGTRANSFORMLISTPARSER_H_
   9
  10 #include "mozilla/Attributes.h"
  11 #include "SVGDataParser.h"
  12 #include "nsTArray.h"
  13
  14 ////////////////////////////////////////////////////////////////////////
  15 // SVGTransformListParser: A simple recursive descent parser that builds
  16 // transform lists from transform attributes. The grammar for path data
  17 // can be found in SVG 1.1,  chapter 7.
  18 // http://www.w3.org/TR/SVG11/coords.html#TransformAttribute
  19
  20 namespace mozilla {
  21
  22 class SVGTransform;
  23
  24 class SVGTransformListParser : public SVGDataParser {
  25  public:
  26   explicit SVGTransformListParser(const nsAString& aValue)
  27       : SVGDataParser(aValue) {}
  28
  29   bool Parse();
  30
  31   const nsTArray<SVGTransform>& GetTransformList() const { return mTransforms; }
  32
  33  private:
  34   // helpers
  35   bool ParseArguments(float* aResult, uint32_t aMaxCount,
  36                       uint32_t* aParsedCount);
  37
  38   bool ParseTransforms();
  39
  40   bool ParseTransform();
  41
  42   bool ParseTranslate();
  43   bool ParseScale();
  44   bool ParseRotate();
  45   bool ParseSkewX();
  46   bool ParseSkewY();
  47   bool ParseMatrix();
  48
  49   FallibleTArray<SVGTransform> mTransforms;
  50 };
  51
  52 }  // namespace mozilla
  53
  54 #endif  // DOM_SVG_SVGTRANSFORMLISTPARSER_H_