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ICSharpCode.TextEditor/Project/Src/Gui/AbstractMargin.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;
+using System.Drawing;
+using System.Windows.Forms;
+
+using ICSharpCode.TextEditor.Document;
+
+namespace ICSharpCode.TextEditor
+{
+	public delegate void MarginMouseEventHandler(AbstractMargin sender, Point mousepos, MouseButtons mouseButtons);
+	public delegate void MarginPaintEventHandler(AbstractMargin sender, Graphics g, Rectangle rect);
+	
+	/// <summary>
+	/// This class views the line numbers and folding markers.
+	/// </summary>
+	public abstract class AbstractMargin
+	{
+		Cursor cursor = Cursors.Default;
+		
+		[CLSCompliant(false)]
+		protected Rectangle drawingPosition = new Rectangle(0, 0, 0, 0);
+		[CLSCompliant(false)]
+		protected TextArea textArea;
+		
+		public Rectangle DrawingPosition {
+			get {
+				return drawingPosition;
+			}
+			set {
+				drawingPosition = value;
+			}
+		}
+		
+		public TextArea TextArea {
+			get {
+				return textArea;
+			}
+		}
+		
+		public IDocument Document {
+			get {
+				return textArea.Document;
+			}
+		}
+		
+		public ITextEditorProperties TextEditorProperties {
+			get {
+				return textArea.Document.TextEditorProperties;
+			}
+		}
+		
+		public virtual Cursor Cursor {
+			get {
+				return cursor;
+			}
+			set {
+				cursor = value;
+			}
+		}
+		
+		public virtual Size Size {
+			get {
+				return new Size(-1, -1);
+			}
+		}
+		
+		public virtual bool IsVisible {
+			get {
+				return true;
+			}
+		}
+		
+		protected AbstractMargin(TextArea textArea)
+		{
+			this.textArea = textArea;
+		}
+		
+		public virtual void HandleMouseDown(Point mousepos, MouseButtons mouseButtons)
+		{
+			if (MouseDown != null) {
+				MouseDown(this, mousepos, mouseButtons);
+			}
+		}
+		public virtual void HandleMouseMove(Point mousepos, MouseButtons mouseButtons)
+		{
+			if (MouseMove != null) {
+				MouseMove(this, mousepos, mouseButtons);
+			}
+		}
+		public virtual void HandleMouseLeave(EventArgs e)
+		{
+			if (MouseLeave != null) {
+				MouseLeave(this, e);
+			}
+		}
+		
+		public virtual void Paint(Graphics g, Rectangle rect)
+		{
+			if (Painted != null) {
+				Painted(this, g, rect);
+			}
+		}
+		
+		public event MarginPaintEventHandler Painted;
+		public event MarginMouseEventHandler MouseDown;
+		public event MarginMouseEventHandler MouseMove;
+		public event EventHandler            MouseLeave;
+	}
+}