MonoDevelop.Ide.Editor.Highlighting.ColorScheme.LoadFrom C# (CSharp) Method

		internal static ColorScheme LoadFrom (Stream stream)
		{
			var result = new ColorScheme ();
			byte [] bytes;
			using (var sr = Core.Text.TextFileUtility.OpenStream (stream)) {
				bytes = System.Text.Encoding.UTF8.GetBytes (sr.ReadToEnd ());
			}

			var reader = System.Runtime.Serialization.Json.JsonReaderWriterFactory.CreateJsonReader (bytes, new System.Xml.XmlDictionaryReaderQuotas ());

			var root = XElement.Load(reader);

			// The fields we'd like to extract
			result.Name = root.XPathSelectElement("name").Value;

			if (result.Name != DefaultColorStyle)
				result.CopyValues (SyntaxModeService.DefaultColorStyle);

			var version = Version.Parse (root.XPathSelectElement("version").Value);
			if (version.Major != 1)
				return null;
			var el = root.XPathSelectElement ("description");
			if (el != null)
				result.Description = el.Value;
			el = root.XPathSelectElement ("originator");
			if (el != null)
				result.Originator = el.Value;
			el = root.XPathSelectElement ("baseScheme");
			if (el != null)
				result.BaseScheme = el.Value;

			if (result.BaseScheme != null) {
				var baseScheme = SyntaxModeService.GetColorStyle (result.BaseScheme);
				if (baseScheme != null)
					result.CopyValues (baseScheme);
			}

			var palette = new Dictionary<string, HslColor> ();
			foreach (var color in root.XPathSelectElements("palette/*")) {
				var name = color.XPathSelectElement ("name").Value;
				if (palette.ContainsKey (name))
					throw new InvalidDataException ("Duplicate palette color definition for: " + name);
				palette.Add (
					name,
					ParseColor (color.XPathSelectElement ("value").Value)
				);
			}

			foreach (var colorElement in root.XPathSelectElements("//colors/*")) {
				var color = AmbientColor.Create (colorElement, palette);
				PropertyDecsription info;
				if (!ambientColors.TryGetValue (color.Name, out info)) {
					Console.WriteLine ("Ambient color:" + color.Name + " not found.");
					continue;
				}
				info.Info.SetValue (result, color, null);
			}

			foreach (var textColorElement in root.XPathSelectElements("//text/*")) {
				var color = ChunkStyle.Create (textColorElement, palette);
				PropertyDecsription info;
				if (!textColors.TryGetValue (color.Name, out info)) {
					Console.WriteLine ("Text color:" + color.Name + " not found.");
					continue;
				}
				info.Info.SetValue (result, color, null);
			}

			// Check scheme
			bool valid = true;
			foreach (var color in textColors.Values) {
				if (color.Info.GetValue (result, null) == null) {
					Console.WriteLine (color.Attribute.Name + " == null");
					valid = false;
				}
			}
			foreach (var color in ambientColors.Values) {
				if (color.Info.GetValue (result, null) == null) {
					Console.WriteLine (color.Attribute.Name + " == null");
					valid = false;
				}
			}
			if (!valid)
				throw new InvalidDataException ("Scheme " + result.Name + " is not valid.");
			return result;
		}