MathMLTextRunFactory.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 MATHMLTEXTRUNFACTORY_H_

#define MATHMLTEXTRUNFACTORY_H_

#include "mozilla/UniquePtr.h"

#include "nsTextRunTransformations.h"

/**

 * Builds textruns that render their text with MathML specific renderings.

*/

class MathMLTextRunFactory : public nsTransformingTextRunFactory {

 public:

  MathMLTextRunFactory(mozilla::UniquePtr<nsTransformingTextRunFactory>

                           aInnerTransformingTextRunFactory,

                       uint32_t aFlags, uint8_t aSSTYScriptLevel,

                       float aFontInflation)

      : mInnerTransformingTextRunFactory(

            std::move(aInnerTransformingTextRunFactory)),

        mFlags(aFlags),

        mFontInflation(aFontInflation),

        mSSTYScriptLevel(aSSTYScriptLevel) {}

  static uint32_t MathVariant(uint32_t aCh, mozilla::StyleMathVariant aMathVar);

  virtual void RebuildTextRun(nsTransformedTextRun* aTextRun,

                              mozilla::gfx::DrawTarget* aRefDrawTarget,

                              gfxMissingFontRecorder* aMFR) override;

  enum {

    // Style effects which may override single character <mi> behaviour

    MATH_FONT_FEATURE_DTLS = 0x4,  // font feature dtls should be set

};

 protected:

  mozilla::UniquePtr<nsTransformingTextRunFactory>

      mInnerTransformingTextRunFactory;

  uint32_t mFlags;

  float mFontInflation;

  uint8_t mSSTYScriptLevel;

};

#endif /*MATHMLTEXTRUNFACTORY_H_*/