public override Box CreateBox(TexEnvironment environment)
{
var texFont = environment.TexFont;
var style = environment.Style;
// Create box for base atom.
var baseBox = BaseAtom.CreateBox(environment);
// Create result box.
var resultBox = new HorizontalBox();
var axis = texFont.GetAxisHeight(style);
var delta = Math.Max(baseBox.Height - axis, baseBox.Depth + axis);
var minHeight = Math.Max((delta / 500) * delimeterFactor, 2 * delta - delimeterShortfall);
// Create and add box for left delimeter.
if (LeftDelimeter != null)
{
var leftDelimeterBox = DelimiterFactory.CreateBox(LeftDelimeter.Name, minHeight, environment);
CentreBox(leftDelimeterBox, axis);
resultBox.Add(leftDelimeterBox);
}
// add glueElement between left delimeter and base Atom, unless base Atom is whitespace.
if (!(BaseAtom is SpaceAtom))
{
resultBox.Add(Glue.CreateBox(TexAtomType.Opening, BaseAtom.GetLeftType(), environment));
}
// add box for base Atom.
resultBox.Add(baseBox);
// add glueElement between right delimeter and base Atom, unless base Atom is whitespace.
if (!(BaseAtom is SpaceAtom))
{
resultBox.Add(Glue.CreateBox(BaseAtom.GetRightType(), TexAtomType.Closing, environment));
}
// Create and add box for right delimeter.
if (RightDelimeter is null)
{
return(resultBox);
}
var rightDelimeterBox = DelimiterFactory.CreateBox(RightDelimeter.Name, minHeight, environment);
CentreBox(rightDelimeterBox, axis);
resultBox.Add(rightDelimeterBox);
return(resultBox);
}
public override TexAtomType GetLeftType() => BaseAtom.GetLeftType();