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DataFormats.cs « System.Windows.Forms « Managed.Windows.Forms « class « mcs - github.com/mono/mono.git - Unnamed repository; edit this file 'description' to name the repository.
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// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
// 
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
// Copyright (c) 2005 Novell, Inc. (http://www.novell.com)
//
// Authors:
//	Peter Bartok	(pbartok@novell.com)
//
//

// COMPLETE

using System;
using System.Collections;
using System.Text;

namespace System.Windows.Forms {
	public class DataFormats {
		public class Format {
			static readonly object lockobj = new object ();
			
			private static Format	formats;
			private string		name;
			private int		id;
			private Format		next;

			public Format (string name, int ID)
			{
				this.name = name;
				this.id = ID;
				
				lock (lockobj) {
					if (formats == null)
						formats = this;
					else {
						Format f = formats;
						while (f.next != null)
							f = f.next;
						f.next = this;
					}
				}
			}

			#region Public Instance Properties
			public int Id {
				get {
					return this.id;
				}
			}

			public string Name {
				get {
					return this.name;
				}
			}

			internal Format Next {
				get {
					return this.next;
				}
			}
			#endregion	// Public Instance Properties

			#region Private Methods
			internal static Format Add(string name) {
				Format f;

				f = Find(name);
				if (f == null) {
					IntPtr cliphandle;

					cliphandle = XplatUI.ClipboardOpen();
					f = new Format(name, XplatUI.ClipboardGetID(cliphandle, name));
					XplatUI.ClipboardClose(cliphandle);
				}
				return f;
			}

			internal static Format Add(int id) {
				Format f;

				f = Find(id);
				if (f == null) {
					f = new Format("Format"+id.ToString(), id);
				}
				return f;
			}

			internal static Format Find(int id) {
				Format f;

				f = formats;
				while ((f != null) && (f.Id != id)) {
					f = f.next;
				}
				return f;
			}

			internal static Format Find(string name) {
				Format f;

				f = formats;
				while ((f != null) && (!f.Name.Equals(name))) {
					f = f.next;
				}
				return f;
			}

			internal static Format List {
				get {
					return formats;
				}
			}
			#endregion	// Private Methods

		}
		
		private DataFormats () {}
		
		#region Public Static Fields
		public static readonly string Bitmap			= "Bitmap";
		public static readonly string CommaSeparatedValue	= "Csv";
		public static readonly string Dib			= "DeviceIndependentBitmap";
		public static readonly string Dif			= "DataInterchangeFormat";
		public static readonly string EnhancedMetafile		= "EnhancedMetafile";
		public static readonly string FileDrop			= "FileDrop";
		public static readonly string Html			= "HTML Format";
		public static readonly string Locale			= "Locale";
		public static readonly string MetafilePict		= "MetaFilePict";
		public static readonly string OemText			= "OEMText";
		public static readonly string Palette			= "Palette";
		public static readonly string PenData			= "PenData";
		public static readonly string Riff			= "RiffAudio";
		public static readonly string Rtf			= "Rich Text Format";
		public static readonly string Serializable		= "WindowsForms10PersistentObject";
		public static readonly string StringFormat		= "System.String";
		public static readonly string SymbolicLink		= "SymbolicLink";
		public static readonly string Text			= "Text";
		public static readonly string Tiff			= "Tiff";
		public static readonly string UnicodeText		= "UnicodeText";
		public static readonly string WaveAudio			= "WaveAudio";
		#endregion	// Public Static Fields

		private static object lock_object = new object ();
		private static bool initialized;

		public static Format GetFormat (int ID)
		{
			lock (lock_object) {
				if (!initialized)
					Init ();
				return Format.Find (ID);
			}
		}

		public static Format GetFormat (string format)
		{
			lock (lock_object) {
				if (!initialized)
					Init ();
				return Format.Add (format);
			}
		}

		// Assumes we are locked on the lock_object when it is called
		private static void Init ()
		{
			if (initialized)
				return;
			IntPtr cliphandle = XplatUI.ClipboardOpen();

			new Format (Text, XplatUI.ClipboardGetID (cliphandle, Text));
			new Format (Bitmap, XplatUI.ClipboardGetID (cliphandle, Bitmap));
			new Format (MetafilePict, XplatUI.ClipboardGetID (cliphandle, MetafilePict));
			new Format (SymbolicLink, XplatUI.ClipboardGetID (cliphandle, SymbolicLink));
			new Format (Dif, XplatUI.ClipboardGetID (cliphandle, Dif)) ;
			new Format (Tiff, XplatUI.ClipboardGetID (cliphandle, Tiff));
			new Format (OemText, XplatUI.ClipboardGetID (cliphandle, OemText));
			new Format (Dib, XplatUI.ClipboardGetID (cliphandle, Dib));
			new Format (Palette, XplatUI.ClipboardGetID (cliphandle, Palette));
			new Format (PenData, XplatUI.ClipboardGetID (cliphandle, PenData));
			new Format (Riff, XplatUI.ClipboardGetID (cliphandle, Riff));
			new Format (WaveAudio, XplatUI.ClipboardGetID (cliphandle, WaveAudio));
			new Format (UnicodeText, XplatUI.ClipboardGetID (cliphandle, UnicodeText));
			new Format (EnhancedMetafile, XplatUI.ClipboardGetID (cliphandle, EnhancedMetafile));
			new Format (FileDrop, XplatUI.ClipboardGetID (cliphandle, FileDrop));
			new Format (Locale, XplatUI.ClipboardGetID (cliphandle, Locale));
			new Format (CommaSeparatedValue, XplatUI.ClipboardGetID (cliphandle, CommaSeparatedValue));
			new Format (Html, XplatUI.ClipboardGetID (cliphandle, Html));
			new Format (Rtf, XplatUI.ClipboardGetID (cliphandle, Rtf));
			new Format (Serializable, XplatUI.ClipboardGetID (cliphandle, Serializable));
			new Format (StringFormat, XplatUI.ClipboardGetID (cliphandle, StringFormat));

			XplatUI.ClipboardClose (cliphandle);

			initialized = true;
		}
	}
}