// Copyright (C) 2000-2007, Luca Padovani <padovani@sti.uniurb.it>.
// 
// This file is part of GtkMathView, a flexible, high-quality rendering
// engine for MathML documents.
// 
// GtkMathView is free software; you can redistribute it and/or modify it
// under the terms of the GNU Lesser General Public License as published
// by the Free Software Foundation; either version 3 of the License, or
// (at your option) any later version.
// 
// GtkMathView is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
// Lesser General Public License for more details.
// 
// You should have received a copy of the GNU Lesser General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

#include <config.h>

#include <cassert>

#include "MathMLmathElement.hh"
#include "ValueConversion.hh"
#include "FormattingContext.hh"
#include "MathGraphicDevice.hh"
#include "MathMLAttributeSignatures.hh"

MathMLmathElement::MathMLmathElement(const SmartPtr<class MathMLNamespaceContext>& context)
  : MathMLNormalizingContainerElement(context)
{ }

MathMLmathElement::~MathMLmathElement()
{ }

AreaRef
MathMLmathElement::format(FormattingContext& ctxt)
{
  if (dirtyLayout())
    {
      ctxt.push(this);
      ctxt.setMathMode(true);
      SmartPtr<Value> value = GET_ATTRIBUTE_VALUE(MathML, math, display);
      assert(value);
      ctxt.setDisplayStyle(ToTokenId(value) == T_BLOCK);

      AreaRef res = getChild() ? getChild()->format(ctxt) : 0;
      if (res) res = ctxt.MGD()->wrapper(ctxt, res);
      setArea(res);

      ctxt.pop();

      resetDirtyLayout();
    }

  return getArea();
}