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ICSharpCode.TextEditor/Project/Src/Document/DocumentEventArgs.cs

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+// <file>
+//     <copyright see="prj:///doc/copyright.txt"/>
+//     <license see="prj:///doc/license.txt"/>
+//     <owner name="Mike Krüger" email="mike@icsharpcode.net"/>
+//     <version>$Revision$</version>
+// </file>
+
+using System;
+
+namespace ICSharpCode.TextEditor.Document
+{
+	/// <summary>
+	/// This delegate is used for document events.
+	/// </summary>
+	public delegate void DocumentEventHandler(object sender, DocumentEventArgs e);
+	
+	/// <summary>
+	/// This class contains more information on a document event
+	/// </summary>
+	public class DocumentEventArgs : EventArgs
+	{
+		IDocument document;
+		int       offset;
+		int       length;
+		string    text;
+		
+		/// <returns>
+		/// always a valid Document which is related to the Event.
+		/// </returns>
+		public IDocument Document {
+			get {
+				return document;
+			}
+		}
+		
+		/// <returns>
+		/// -1 if no offset was specified for this event
+		/// </returns>
+		public int Offset {
+			get {
+				return offset;
+			}
+		}
+		
+		/// <returns>
+		/// null if no text was specified for this event
+		/// </returns>
+		public string Text {
+			get {
+				return text;
+			}
+		}
+		
+		/// <returns>
+		/// -1 if no length was specified for this event
+		/// </returns>
+		public int Length {
+			get {
+				return length;
+			}
+		}
+		
+		/// <summary>
+		/// Creates a new instance off <see cref="DocumentEventArgs"/>
+		/// </summary>
+		public DocumentEventArgs(IDocument document) : this(document, -1, -1, null)
+		{
+		}
+		
+		/// <summary>
+		/// Creates a new instance off <see cref="DocumentEventArgs"/>
+		/// </summary>
+		public DocumentEventArgs(IDocument document, int offset) : this(document, offset, -1, null)
+		{
+		}
+		
+		/// <summary>
+		/// Creates a new instance off <see cref="DocumentEventArgs"/>
+		/// </summary>
+		public DocumentEventArgs(IDocument document, int offset, int length) : this(document, offset, length, null)
+		{
+		}
+		
+		/// <summary>
+		/// Creates a new instance off <see cref="DocumentEventArgs"/>
+		/// </summary>
+		public DocumentEventArgs(IDocument document, int offset, int length, string text)
+		{
+			this.document = document;
+			this.offset   = offset;
+			this.length   = length;
+			this.text     = text;
+		}
+		public override string ToString()
+		{
+			return string.Format("[DocumentEventArgs: Document = {0}, Offset = {1}, Text = {2}, Length = {3}]",
+			                     Document,
+			                     Offset,
+			                     Text,
+			                     Length);
+		}
+	}
+}