/* -*- 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 nsMathMLmrootFrame_h___

#define nsMathMLmrootFrame_h___

#include "mozilla/Attributes.h"

#include "nsMathMLContainerFrame.h"

#include "nsMathMLChar.h"

//

// <msqrt> and <mroot> -- form a radical

//

class nsMathMLmrootFrame final : public nsMathMLContainerFrame

{

public:

  NS_DECL_FRAMEARENA_HELPERS(nsMathMLmrootFrame)

  friend nsIFrame* NS_NewMathMLmrootFrame(nsIPresShell* aPresShell, ComputedStyle* aStyle);

  virtual void

  SetAdditionalComputedStyle(int32_t          aIndex,

                            ComputedStyle*  aComputedStyle) override;

  virtual ComputedStyle*

  GetAdditionalComputedStyle(int32_t aIndex) const override;

  virtual void

  Init(nsIContent*       aContent,

       nsContainerFrame* aParent,

       nsIFrame*         aPrevInFlow) override;

  NS_IMETHOD

  TransmitAutomaticData() override;

  virtual void

  Reflow(nsPresContext*          aPresContext,

         ReflowOutput&     aDesiredSize,

         const ReflowInput& aReflowInput,

         nsReflowStatus&          aStatus) override;

  void

  GetRadicalXOffsets(nscoord aIndexWidth, nscoord aSqrWidth,

                     nsFontMetrics* aFontMetrics,

                     nscoord* aIndexOffset,

                     nscoord* aSqrOffset);

  virtual void

  GetIntrinsicISizeMetrics(gfxContext* aRenderingContext,

                           ReflowOutput& aDesiredSize) override;

  virtual void BuildDisplayList(nsDisplayListBuilder*   aBuilder,

                                const nsDisplayListSet& aLists) override;

  uint8_t

  ScriptIncrement(nsIFrame* aFrame) override

  {

    return (aFrame && aFrame == mFrames.LastChild()) ? 2 : 0;

  }

protected:

  explicit nsMathMLmrootFrame(ComputedStyle* aStyle);

  virtual ~nsMathMLmrootFrame();

  nsMathMLChar mSqrChar;

  nsRect       mBarRect;

};

#endif /* nsMathMLmrootFrame_h___ */