/// <summary>
/// From an indirect reference object -1 0 R-,
/// construct a Document -DocumentCatalog in the example- using the objects list
/// previously loaded
/// </summary>
public T GetDocument <T>(IndirectReferenceObject indirectObj) where T : DocumentTree
{
IndirectObject obj;
if (!objects.TryGetValue(indirectObj, out obj))
{
return(default(T));
}
return(GetDocument <T>(obj));
}
internal T GetObject <T>(IndirectReferenceObject indirectObj) where T : PdfObject
{
IndirectObject obj;
if (!objects.TryGetValue(indirectObj, out obj))
{
throw new PdfException(PdfExceptionCodes.INVALID_CONTENT, $"Impossible to cast");
}
return(GetObject <T>(obj));
}
/// <summary> /// From an indirect reference, I want to know the type of this object /// For example: 1 0 R /// and exists 1 0 obj << /Type /Catalog /Pages 2 0 R >> endobj /// It will return "Catalog" /// If the obj referenced is not a dictionary, or not exists, for example /// 1 0 obj [ 1 2 3 ] endobj /// type will be null /// </summary> public string GetType(IndirectReferenceObject indirectObj) => objects.TryGetValue(indirectObj, out IndirectObject obj) ? GetType(obj) : null;