pdfHeader.cs :  » PDF » SharpPDF » sharpPDF » C# / CSharp Open Source

using System;
using System.Text;

using sharpPDF.Exceptions;
using sharpPDF.Enumerators;

namespace sharpPDF{
  /// <summary>
  /// A Class that implements a PDF header.
  /// </summary>
  internal class pdfHeader : IWritable
  {
    
    private int _objectIDHeader;
    private int _objectIDInfo;
    private int _objectIDOutlines;    
    private int _pageTreeID;
    private bool _openBookmark;

    /// <summary>
    /// Header's ID
    /// </summary>
    public int objectIDHeader
    {
      get
      {
        return _objectIDHeader;
      }

      set
      {
        _objectIDHeader = value;
      }
    }
  
    /// <summary>
    /// Outlines's ID
    /// </summary>
    public int objectIDOutlines
    {
      get
      {
        return _objectIDOutlines;
      }

      set
      {
        _objectIDOutlines = value;
      }
    }

    /// <summary>
    /// Info's ID
    /// </summary>
    public int objectIDInfo
    {
      get
      {
        return _objectIDInfo;
      }

      set
      {
        _objectIDInfo = value;
      }
    }

    /// <summary>
    /// PageTree's ID
    /// </summary>
    public int pageTreeID
    {
      get
      {
        return _pageTreeID;
      }

      set
      {
        _pageTreeID = value;
      }
    }

    /// <summary>
    /// Class's constructor
    /// </summary>
    /// <param name="openBookmark">Allows to show directly bookmarks near the document</param>
    public pdfHeader(bool openBookmark)
    {
      _openBookmark = openBookmark;
    }

    /// <summary>
    /// Method that returns the PDF codes to write the Header in the document
    /// </summary>
    /// <returns>String that contains PDF codes</returns>
    public string getText()
    {
      StringBuilder strHeader = new StringBuilder();
            strHeader.Append(_objectIDHeader.ToString() + " 0 obj" + Convert.ToChar(13) + Convert.ToChar(10));
            strHeader.Append("<<" + Convert.ToChar(13) + Convert.ToChar(10));
            strHeader.Append("/Type /Catalog" + Convert.ToChar(13) + Convert.ToChar(10));
      strHeader.Append("/Version /1.4" + Convert.ToChar(13) + Convert.ToChar(10));
            strHeader.Append("/Pages " + _pageTreeID.ToString() + " 0 R" + Convert.ToChar(13) + Convert.ToChar(10));
            strHeader.Append("/Outlines "+ _objectIDOutlines.ToString() +" 0 R" + Convert.ToChar(13) + Convert.ToChar(10));
      if (_openBookmark) {
        strHeader.Append("/PageMode /UseOutlines" + Convert.ToChar(13) + Convert.ToChar(10));
      }
            strHeader.Append(">>" + Convert.ToChar(13) + Convert.ToChar(10));
            strHeader.Append("endobj" + Convert.ToChar(13) + Convert.ToChar(10));                                   
      return strHeader.ToString();
    }
  }
}