layout/generic/MathMLTextRunFactory.h
author Brian Hackett <bhackett1024@gmail.com>
Wed, 14 Nov 2018 16:09:58 -1000
changeset 446931 1c7fc8389e012c987347efefca6b35f3948b742a
parent 420862 b54db66223586b4e04f5cb926fccdacf8a176b91
child 448947 6f3709b3878117466168c40affa7bca0b60cf75b
permissions -rw-r--r--
Bug 1507359 Part 2 - Bindings and internal changes to allow ReplayDebugger to control child pausing/resuming, r=mccr8.

/* -*- 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) {}

  virtual void RebuildTextRun(nsTransformedTextRun* aTextRun,
                              mozilla::gfx::DrawTarget* aRefDrawTarget,
                              gfxMissingFontRecorder* aMFR) override;
  enum {
    // Style effects which may override single character <mi> behaviour
    MATH_FONT_STYLING_NORMAL   = 0x1, // fontstyle="normal" has been set.
    MATH_FONT_WEIGHT_BOLD      = 0x2, // fontweight="bold" has been set.
    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_*/