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

/*
  Copyright 2006,2007,2008 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;
using it.stefanochizzolini.clown.bytes;

using System;
using System.Collections;
using System.Collections.Generic;
using System.IO;
using System.Text;

namespace it.stefanochizzolini.clown.objects{
  /**
    <summary>PDF array object [PDF:1.6:3.2.5].</summary>
  */
  public class PdfArray
    : PdfDirectObject,
      IList<PdfDirectObject>
  {
    #region dynamic
    #region fields
    private List<PdfDirectObject> items;
    #endregion

    #region constructors
    public PdfArray(
      )
    {items = new List<PdfDirectObject>();}

    public PdfArray(
      int capacity
      )
    {items = new List<PdfDirectObject>(capacity);}

    public PdfArray(
      PdfDirectObject[] items
      ) : this(items.Length)
    {
      foreach(PdfDirectObject item in items)
      {Add(item);}
    }
    #endregion

    #region interface
    #region public
    public override object Clone(
      files.File context
      )
    {
      //TODO:IMPL redefine to support real cloning (current implementation is prone to object slicing hazard)!!!
      PdfArray clone = new PdfArray(items.Count);

      foreach(PdfDirectObject obj in items)
      {clone.Add((PdfDirectObject)obj.Clone(context));}

      return clone;
    }

    public override string ToString(
      )
    {
      StringBuilder buffer = new StringBuilder();

      // Begin.
      buffer.Append("[ ");

      // Elements.
      foreach(PdfDirectObject item in items)
      {buffer.Append(PdfDirectObject.ToString(item)); buffer.Append(" ");}

      // End.
      buffer.Append("]");

      return buffer.ToString();
    }

    #region IList
    public int IndexOf(
      PdfDirectObject obj
      )
    {return items.IndexOf(obj);}

    public void Insert(
      int index,
      PdfDirectObject obj
      )
    {items.Insert(index,obj);}

    public void RemoveAt(
      int index
      )
    {items.RemoveAt(index);}

    public PdfDirectObject this[
      int index
      ]
    {
      get{return items[index];}
      set{items[index] = value;}
    }

    #region ICollection
    public void Add(
      PdfDirectObject obj
      )
    {items.Add(obj);}

    public void Clear(
      )
    {items.Clear();}

    public bool Contains(
      PdfDirectObject obj
      )
    {return items.Contains(obj);}

    public void CopyTo(
      PdfDirectObject[] objs,
      int index
      )
    {items.CopyTo(objs,index);}

    public int Count
    {get{return items.Count;}}

    public bool IsReadOnly
    {get{return false;}}

    public bool Remove(
      PdfDirectObject obj
      )
    {return items.Remove(obj);}

    #region IEnumerable<PdfDirectObject>
    public IEnumerator<PdfDirectObject> GetEnumerator(
      )
    {return items.GetEnumerator();}

    #region IEnumerable
    IEnumerator IEnumerable.GetEnumerator()
    {return ((IEnumerable<PdfDirectObject>)this).GetEnumerator();}
    #endregion
    #endregion
    #endregion
    #endregion
    #endregion

    #region internal
    internal override void WriteTo(
      IOutputStream stream
      )
    {
      // Begin.
      stream.Write("[ ");

      // Elements.
      foreach(PdfDirectObject item in items)
      {PdfDirectObject.WriteTo(stream,item); stream.Write(" ");}

      // End.
      stream.Write("]");
    }
    #endregion
    #endregion
    #endregion
  }
}