public override bool Evaluate(
object @object
)
{
elements.Add(ArticleElement.Wrap((PdfDirectObject)@object));
return(false);
}
public bool Remove(
ArticleElement @object
)
{
if (!Contains(@object))
{
return(false);
}
Unlink(@object.BaseDataObject);
return(true);
}
public int IndexOf(
ArticleElement @object
)
{
if (@object == null)
{
return(-1); // NOTE: By definition, no bead can be null.
}
ElementIndexer indexer = new ElementIndexer(@object.BaseDataObject);
Iterate(indexer);
return(indexer.Index);
}
public void Add(
ArticleElement @object
)
{
PdfDictionary itemBead = @object.BaseDataObject;
PdfDictionary firstBead = FirstBead;
if (firstBead != null) // Non-empty list.
{
Link(itemBead, firstBead);
}
else // Empty list.
{
FirstBead = itemBead;
Link(itemBead, itemBead);
}
}
public ArticleElement this[
int index
]
{
get
{
if (index < 0)
{
throw new ArgumentOutOfRangeException();
}
ElementGetter getter = new ElementGetter(index);
Iterate(getter);
PdfDictionary bead = getter.Bead;
if (bead == null)
{
throw new ArgumentOutOfRangeException();
}
return(ArticleElement.Wrap(bead.Reference));
}
set
{ throw new NotImplementedException(); }
}
public void Insert(
int index,
ArticleElement @object
)
{
if (index < 0)
{
throw new ArgumentOutOfRangeException();
}
ElementGetter getter = new ElementGetter(index);
Iterate(getter);
PdfDictionary bead = getter.Bead;
if (bead == null)
{
Add(@object);
}
else
{
Link(@object.BaseDataObject, bead);
}
}
public bool Contains(
ArticleElement @object
)
{
return(IndexOf(@object) >= 0);
}