Information.cs :  » PDF » PDF-Clown » it » stefanochizzolini » clown » documents » interchange » metadata » C# / CSharp Open Source

/*
  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.documents;
using it.stefanochizzolini.clown.files;
using it.stefanochizzolini.clown.objects;

using System;
using System.Reflection;

namespace it.stefanochizzolini.clown.documents.interchange.metadata{
  /**
    <summary>Document information [PDF:1.6:10.2.1].</summary>
  */
  public class Information
    : PdfObjectWrapper<PdfDictionary>
  {
    #region dynamic
    #region constructors
    public Information(
      Document context
      ) : base(
        context.File,
        new PdfDictionary()
        )
    {
      /*
        NOTE: [PDF:1.6:3.4.4] The document's information dictionary MUST be
        an indirect reference.
      */
      Producer = Assembly.GetExecutingAssembly().FullName;
    }

    internal Information(
      PdfDirectObject baseObject
      ) : base(
        baseObject,
        null // NO container (info MUST be an indirect object [PDF:1.6:3.4.4]).
        )
    {}
    #endregion

    #region interface
    #region public
    public string Author
    {
      get{return (string)GetEntry<byte[],PdfTextString>(PdfName.Author);}
      set{SetEntry<byte[],PdfTextString>(PdfName.Author,value);}
    }

    public override object Clone(
      Document context
      )
    {throw new NotImplementedException();}

    public DateTime CreationDate
    {
      get{return (DateTime)GetEntry<byte[],PdfDate>(PdfName.CreationDate);}
      set{SetEntry<byte[],PdfDate>(PdfName.CreationDate,value);}
    }

    public string Creator
    {
      get{return (string)GetEntry<byte[],PdfTextString>(PdfName.Creator);}
      set{SetEntry<byte[],PdfTextString>(PdfName.Creator,value);}
    }

    public string Keywords
    {
      get{return (string)GetEntry<byte[],PdfTextString>(PdfName.Keywords);}
      set{SetEntry<byte[],PdfTextString>(PdfName.Keywords,value);}
    }

    public DateTime ModificationDate
    {
      get{return (DateTime)GetEntry<byte[],PdfDate>(PdfName.ModDate);}
      set{SetEntry<byte[],PdfDate>(PdfName.ModDate,value);}
    }

    public string Producer
    {
      get{return (string)GetEntry<byte[],PdfTextString>(PdfName.Producer);}
      set{SetEntry<byte[],PdfTextString>(PdfName.Producer,value);}
    }

    public string Subject
    {
      get{return (string)GetEntry<byte[],PdfTextString>(PdfName.Subject);}
      set{SetEntry<byte[],PdfTextString>(PdfName.Subject,value);}
    }

    public string Title
    {
      get{return (string)GetEntry<byte[],PdfTextString>(PdfName.Title);}
      set{SetEntry<byte[],PdfTextString>(PdfName.Title,value);}
    }
    #endregion

    #region protected
    protected object GetEntry<T,TPdf>(
      PdfName key
      )
      where TPdf : PdfAtomicObject<T>
    {
      TPdf entry = (TPdf)File.Resolve(BaseDataObject[key]);
      if(entry == null)
        return null;

      return entry.Value;
    }

    protected void SetEntry<T,TPdf>(
      PdfName key,
      object value
      )
      where TPdf : PdfAtomicObject<T>, new()
    {
      if(!BaseDataObject.ContainsKey(key))
        BaseDataObject[key] = new TPdf();

      ((TPdf)File.Resolve(BaseDataObject[key])).Value = value;
    }
    #endregion
    #endregion
    #endregion
  }
}