layout/generic/MathMLTextRunFactory.h

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
   2  * This Source Code Form is subject to the terms of the Mozilla Public
   3  * License, v. 2.0. If a copy of the MPL was not distributed with this
   4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   5
   6 #ifndef MATHMLTEXTRUNFACTORY_H_
   7 #define MATHMLTEXTRUNFACTORY_H_
   8
   9 #include "nsTextRunTransformations.h"
  10
  11 /**
  12  * Builds textruns that render their text with MathML specific renderings.
  13  */
  14 class MathMLTextRunFactory : public nsTransformingTextRunFactory {
  15 public:
  16   MathMLTextRunFactory(nsTransformingTextRunFactory* aInnerTransformingTextRunFactory,
  17                        uint32_t aFlags, uint8_t aSSTYScriptLevel,
  18                        float aFontInflation)
  19     : mInnerTransformingTextRunFactory(aInnerTransformingTextRunFactory),
  20       mFlags(aFlags),
  21       mFontInflation(aFontInflation),
  22       mSSTYScriptLevel(aSSTYScriptLevel) {}
  23
  24   virtual void RebuildTextRun(nsTransformedTextRun* aTextRun,
  25                               gfxContext* aRefContext,
  26                               gfxMissingFontRecorder* aMFR) MOZ_OVERRIDE;
  27   enum {
  28     // Style effects which may override single character <mi> behaviour
  29     MATH_FONT_STYLING_NORMAL   = 0x1, // fontstyle="normal" has been set.
  30     MATH_FONT_WEIGHT_BOLD      = 0x2, // fontweight="bold" has been set.
  31     MATH_FONT_FEATURE_DTLS     = 0x4, // font feature dtls should be set
  32   };
  33
  34 protected:
  35   nsAutoPtr<nsTransformingTextRunFactory> mInnerTransformingTextRunFactory;
  36   uint32_t mFlags;
  37   float mFontInflation;
  38   uint8_t mSSTYScriptLevel;
  39 };
  40
  41 #endif /*MATHMLTEXTRUNFACTORY_H_*/