pdfstream.cs

PDF文档生成解析使用的库,可以用来改写自己的文档格式

using System;
using System.Collections.Generic;
using System.Text;
using AnotherPDFLib.PdfGraphics;

namespace AnotherPDFLib
{
	public partial class PdfStream : PdfDictionary
	{
		public int LengthEntry
		{
			get
			{
				PdfInteger lengthentry = this["Length"] as PdfInteger;
				if (lengthentry != null)
				{
					return lengthentry.Value;
				}
				return 0;
			}
			set
			{
				this["Length"] = new PdfInteger(value);
			}
		}

		/// <summary>
		/// The name of a filter to be applied in processing the stream data.
		/// </summary>
		public StreamFilter Filter
		{
			get
			{
				PdfName filter = this["Filter"] as PdfName;
				if (filter != null)
				{
					return (StreamFilter)Enum.Parse(typeof(StreamFilter), filter.Name);
				}
				return default(StreamFilter);
			}
			set
			{
				this["Filter"] = new PdfName(value.ToString());
			}
		}

		/// <summary>
		/// An array of filter names. Multiple filters should be specified in the order in which they are to be applied.
		/// </summary>
		public StreamFilters Filters
		{
			get
			{
				return this["Filter"] as StreamFilters;
			}
			set
			{
				this["Filter"] = value;
			}
		}

		/// <summary>
		/// A parameter dictionary used by the filters specified by Filter.
		/// </summary>
		public PdfDictionary DecodeParm
		{
			get
			{
				return this["DecodeParms"] as PdfDictionary;
			}
			set
			{
				this["DecodeParms"] = value;
			}
		}

		/// <summary>
		/// 
		/// If there are multiple filters and any of the filters has parameters set to nondefault
		/// values, DecodeParms must be an array with one entry for
		/// each filter: either the parameter dictionary for that filter, or the null
		/// object if that filter has no parameters (or if all of its parameters have
		/// their default values).
		/// 
		/// </summary>
		public PdfArray DecodeParms
		{
			get
			{
				return this["DecodeParms"] as PdfArray;
			}
			set
			{
				this["DecodeParms"] = value;
			}
		}

	}
}