/*
Copyright 2006,2008 Stefano Chizzolini. http://clown.stefanochizzolini.it
Contributors:
* Stefano Chizzolini (original code developer, http://www.stefanochizzolini.it)
This file should be part of the source code distribution of "PDF Clown library"
(the Program): see the accompanying README files for more info.
This Program is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free Software
Foundation; either version 2 of the License, or (at your option) any later version.
This Program is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY, either expressed or implied; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the License for more details.
You should have received a copy of the GNU General Public License along with this
Program (see README files); if not, go to the GNU website (http://www.gnu.org/).
Redistribution and use, with or without modification, are permitted provided that such
redistributions retain the above copyright notice, license and disclaimer, along with
this list of conditions.
*/
using it.stefanochizzolini.clown.bytes;
namespace it.stefanochizzolini.clown.objects{
/**
<summary>Abstract PDF direct object.</summary>
*/
public abstract class PdfDirectObject
: PdfDataObject
{
#region static
#region interface
#region internal
/**
<summary>Ensures that the given direct object is properly represented as string.</summary>
<remarks>This method is useful to force null pointers to be expressed as PDF null objects.</remarks>
*/
internal static string ToString(
PdfDirectObject obj
)
{
if(obj == null)
return "null";
else
return obj.ToString();
}
/**
<summary>Ensures that the given direct object is properly serialized.</summary>
<remarks>This method is useful to force null pointers to be expressed as PDF null objects.</remarks>
*/
internal static void WriteTo(
IOutputStream stream,
PdfDirectObject obj
)
{
if(obj == null)
{stream.Write("null");}
else
{obj.WriteTo(stream);}
}
#endregion
#endregion
#endregion
#region dynamic
#region constructors
public PdfDirectObject(
)
{}
#endregion
#endregion
}
}
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