/// <summary>Defines index of the current tag in the parent's kids list.</summary>
/// <returns>
/// returns index of the current tag in the parent's kids list, or -1
/// if either current tag is a root tag, parent is flushed or it wasn't possible to define index.
/// </returns>
public virtual int GetIndexInParentKidsList()
{
if (GetCurrentStructElem().GetPdfObject() == tagStructureContext.GetRootTag().GetPdfObject())
{
return(-1);
}
PdfStructElem parent = (PdfStructElem)GetCurrentStructElem().GetParent();
if (parent.IsFlushed())
{
return(-1);
}
PdfObject k = parent.GetK();
if (k == GetCurrentStructElem().GetPdfObject())
{
return(0);
}
if (k.IsArray())
{
PdfArray kidsArr = (PdfArray)k;
return(kidsArr.IndexOf(GetCurrentStructElem().GetPdfObject()));
}
return(-1);
}