optionalcontentgroup.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
{
	/// <summary>
	/// An optional content group is a dictionary representing a collection of graphics
	/// that can be made visible or invisible dynamically by users of viewer applications.
	/// The graphics belonging to such a group can reside anywhere in the document:
	/// they need not be consecutive in drawing order, nor even belong to the same content
	/// stream.
	/// </summary>
	public partial class OptionalContentGroup : PdfDictionary
	{
		public OptionalContentGroup() : base("OCG")
		{
		}

		/// <summary>
		/// The name of the optional content group, suitable for presentation in
		/// a viewer application's user interface.
		/// </summary>
		public string Name
		{
			get
			{
				PdfString name = this["Name"] as PdfString;
				if (name != null)
				{
					return name.Value;
				}
				return String.Empty;
			}
			set
			{
				this["Name"] = new PdfString(value);
			}
		}

		/// <summary>
		/// A single intent name that indicate the intended use of the graphics in the group.
		/// Default value: View.
		/// </summary>
		public string Intent
		{
			get
			{
				PdfName intent = this["Intent"] as PdfName;
				if (intent != null)
				{
					return intent.Value;
				}
				return String.Empty;
			}
			set
			{
				this["Intent"] = new PdfName(value);
			}
		}

		/// <summary>
		/// An array containing any combination of names.
		/// PDF 1.5 defines two names, View and Design, that indicate the intended
		/// use of the graphics in the group. Future versions may define others.
		/// A processing application can choose to use only groups that have a specific intent
		/// and ignore others.
		/// </summary>
		public PdfArray Intents
		{
			get
			{
				return this["Intent"] as PdfArray;
			}
			set
			{
				this["Intent"] = value;
			}
		}

		/// <summary>
		/// A usage dictionary describing the nature of the content controlled by the group.
		/// It may be used by features that automatically control the state of the group
		/// based on outside factors.
		/// </summary>
		public OptionalContentUsage Usage
		{
			get
			{
				return this["Usage"] as OptionalContentUsage;
			}
			set
			{
				this["Usage"] = value;
			}
		}

	}
}