layout/generic/MathMLTextRunFactory.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 MATHMLTEXTRUNFACTORY_H_
   8 #define MATHMLTEXTRUNFACTORY_H_
   9
  10 #include "mozilla/UniquePtr.h"
  11 #include "nsTextRunTransformations.h"
  12
  13 /**
  14  * Builds textruns that render their text with MathML specific renderings.
  15  */
  16 class MathMLTextRunFactory : public nsTransformingTextRunFactory {
  17  public:
  18   MathMLTextRunFactory(mozilla::UniquePtr<nsTransformingTextRunFactory>
  19                            aInnerTransformingTextRunFactory,
  20                        uint32_t aFlags, uint8_t aSSTYScriptLevel,
  21                        float aFontInflation)
  22       : mInnerTransformingTextRunFactory(
  23             std::move(aInnerTransformingTextRunFactory)),
  24         mFlags(aFlags),
  25         mFontInflation(aFontInflation),
  26         mSSTYScriptLevel(aSSTYScriptLevel) {}
  27
  28   static uint32_t MathVariant(uint32_t aCh, mozilla::StyleMathVariant aMathVar);
  29   virtual void RebuildTextRun(nsTransformedTextRun* aTextRun,
  30                               mozilla::gfx::DrawTarget* aRefDrawTarget,
  31                               gfxMissingFontRecorder* aMFR) override;
  32   enum {
  33     // Style effects which may override single character <mi> behaviour
  34     MATH_FONT_FEATURE_DTLS = 0x4,  // font feature dtls should be set
  35   };
  36
  37  protected:
  38   mozilla::UniquePtr<nsTransformingTextRunFactory>
  39       mInnerTransformingTextRunFactory;
  40   uint32_t mFlags;
  41   float mFontInflation;
  42   uint8_t mSSTYScriptLevel;
  43 };
  44
  45 #endif /*MATHMLTEXTRUNFACTORY_H_*/