BeginMarkedContent.cs :  » PDF » PDF-Clown » it » stefanochizzolini » clown » documents » contents » objects » C# / CSharp Open Source

/*
  Copyright 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;
using it.stefanochizzolini.clown.objects;

using System.Collections.Generic;

namespace it.stefanochizzolini.clown.documents.contents.objects{
  /**
    <summary>'Begin marked-content sequence' operation [PDF:1.6:10.5].</summary>
  */
  public sealed class BeginMarkedContent
    : Operation
  {
    #region static
    #region fields
    public static readonly string PropertyListOperatorKeyword = "BDC";
    public static readonly string SimpleOperatorKeyword = "BMC";
    #endregion
    #endregion

    #region dynamic
    #region constructors
    public BeginMarkedContent(
      PdfName tag
      ) : base(
        SimpleOperatorKeyword,
        new List<PdfDirectObject>(
          new PdfDirectObject[]{tag}
          )
        )
    {}

    public BeginMarkedContent(
      PdfName tag,
      PdfDirectObject properties
      ) : base(
        PropertyListOperatorKeyword,
        new List<PdfDirectObject>(
          new PdfDirectObject[]{tag,properties}
          )
        )
    {}
    #endregion

    #region interface
    #region public
    /**
      <summary>Gets/Sets the private information meaningful to the program
      (application or plugin extension) creating the marked content.</summary>
    */
    public PdfDirectObject Properties
    {
      get
      {return operands[1];}
      set
      {
        if(value == null)
        {
          operator_ = SimpleOperatorKeyword;
          if(operands.Count > 1)
          {operands.RemoveAt(1);}
        }
        else
        {
          operator_ = PropertyListOperatorKeyword;
          if(operands.Count > 1)
          {operands[1] = value;}
          else
          {operands.Add(value);}
        }
      }
    }

    /**
      <summary>Gets/Sets the role or significance of the marked content.</summary>
    */
    public PdfName Tag
    {
      get{return (PdfName)operands[0];}
      set{operands[0] = value;}
    }
    #endregion
    #endregion
    #endregion
  }
}