GtkSharp/gdk/PixbufLoader.custom

// PixbufLoader.custom - Gdk PixbufLoader class customizations
//
// Authors: 
//	Mike Kestner <mkestner@ximian.com>
//
// Copyright (c) 2003 Novell, Inc.
//
// This code is inserted after the automatically generated code.
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of version 2 of the Lesser GNU General 
// Public License as published by the Free Software Foundation.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this program; if not, write to the
// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
// Boston, MA 02111-1307, USA.

		[DllImport("libgobject-2.0-0.dll")]
		static extern IntPtr g_object_ref (IntPtr handle);

		internal IntPtr PixbufHandle {
			get {
				return g_object_ref (gdk_pixbuf_loader_get_pixbuf (Handle));
			}
		}

		internal IntPtr AnimationHandle {
			get {
				return g_object_ref (gdk_pixbuf_loader_get_animation (Handle));
			}
		}

		public bool Write (byte[] bytes)
		{
			return this.Write (bytes, (uint) bytes.Length);
		}

		private void LoadFromStream (System.IO.Stream input)
		{
			byte [] buffer = new byte [8192];
			int n;

			while ((n = input.Read (buffer, 0, 8192)) != 0)
				Write (buffer, (uint) n);
			Close ();
		}
		
		public PixbufLoader (System.IO.Stream stream) : this ()
		{
			LoadFromStream (stream);
		}

		public PixbufLoader (System.Reflection.Assembly assembly, string resource) : this ()
		{
			if (assembly == null)
				assembly = System.Reflection.Assembly.GetCallingAssembly ();

			if (resource == null)
				throw new ArgumentNullException ("resource");

			System.IO.Stream s = assembly.GetManifestResourceStream (resource);
			if (s == null)
				throw new ArgumentException ("'" + resource + "' is not a valid resource name of assembly '" + assembly + "'.");

			LoadFromStream (s);
		}

		static public PixbufLoader LoadFromResource (string resource)
		{
			if (resource == null)
				throw new ArgumentNullException ("resource");

			return new PixbufLoader (System.Reflection.Assembly.GetCallingAssembly (), resource);
		}