ICSharpCode.TextEditor.TextArea.OnMouseMove C# (CSharp) Method

		protected override void OnMouseMove(MouseEventArgs e)
		{
			base.OnMouseMove(e);
			if (!toolTipRectangle.Contains(e.Location)) {
				toolTipRectangle = Rectangle.Empty;
				if (toolTipActive)
					RequestToolTip(e.Location);
			}
			foreach (AbstractMargin margin in leftMargins) {
				if (margin.DrawingPosition.Contains(e.X, e.Y)) {
					this.Cursor = margin.Cursor;
					margin.HandleMouseMove(new Point(e.X, e.Y), e.Button);
					if (lastMouseInMargin != margin) {
						if (lastMouseInMargin != null) {
							lastMouseInMargin.HandleMouseLeave(EventArgs.Empty);
						}
						lastMouseInMargin = margin;
					}
					return;
				}
			}
			if (lastMouseInMargin != null) {
				lastMouseInMargin.HandleMouseLeave(EventArgs.Empty);
				lastMouseInMargin = null;
			}
			if (textView.DrawingPosition.Contains(e.X, e.Y)) {
				TextLocation realmousepos = TextView.GetLogicalPosition(e.X - TextView.DrawingPosition.X, e.Y - TextView.DrawingPosition.Y);
				if(SelectionManager.IsSelected(Document.PositionToOffset(realmousepos)) && MouseButtons == MouseButtons.None) {
					// mouse is hovering over a selection, so show default mouse
					this.Cursor = Cursors.Default;
				} else {
					// mouse is hovering over text area, not a selection, so show the textView cursor
					this.Cursor = textView.Cursor;
				}
				return;
			}
			this.Cursor = Cursors.Default;
		}
		AbstractMargin updateMargin = null;