ARCed.UI.DockPane.SplitterControl.OnPaint C# (CSharp) Method

            protected override void OnPaint(PaintEventArgs e)
            {
                base.OnPaint(e);

                if (this.DockPane.DockState != DockState.Document)
                    return;

                Graphics g = e.Graphics;
                Rectangle rect = ClientRectangle;
                if (this.Alignment == DockAlignment.Top || this.Alignment == DockAlignment.Bottom)
                    g.DrawLine(SystemPens.ControlDark, rect.Left, rect.Bottom - 1, rect.Right, rect.Bottom - 1);
                else if (this.Alignment == DockAlignment.Left || this.Alignment == DockAlignment.Right)
                    g.DrawLine(SystemPens.ControlDarkDark, rect.Right - 1, rect.Top, rect.Right - 1, rect.Bottom);
            }