using System;
using CPF.Drawing;
using CPF.ReoGrid.Drawing;

namespace CPF.ReoGrid.Rendering
{
	internal sealed class BorderPainter : IDisposable
	{
		public static BorderPainter Instance
		{
			get
			{
				bool flag = BorderPainter.instance == null;
				if (flag)
				{
					BorderPainter.instance = new BorderPainter();
				}
				return BorderPainter.instance;
			}
		}

		private BorderPainter()
		{
			CPFPen cpfpen = new CPFPen(Color.Black, 1f);
			this.pens[1] = cpfpen;
			cpfpen = new CPFPen(Color.Black, 1f);
			cpfpen.DashStyle = DashStyles.Dash;
			this.pens[3] = cpfpen;
			cpfpen = new CPFPen(Color.Black, 1f);
			cpfpen.DashStyle = DashStyles.Dot;
			this.pens[2] = cpfpen;
			cpfpen = new CPFPen(Color.Black, 3f);
			this.pens[4] = cpfpen;
			cpfpen = new CPFPen(Color.Black, 1f);
			this.pens[5] = cpfpen;
			cpfpen = new CPFPen(Color.Black, 1f);
			cpfpen.DashStyle = DashStyles.DashDot;
			this.pens[6] = cpfpen;
			cpfpen = new CPFPen(Color.Black, 1f);
			cpfpen.DashStyle = DashStyles.DashDotDot;
			this.pens[7] = cpfpen;
			cpfpen = new CPFPen(Color.Black, 2f);
			cpfpen.DashStyle = DashStyles.DashDot;
			this.pens[8] = cpfpen;
			cpfpen = new CPFPen(Color.Black, 2f);
			cpfpen.DashStyle = DashStyles.DashDotDot;
			this.pens[9] = cpfpen;
			cpfpen = new CPFPen(Color.Black, 2f);
			cpfpen.DashStyle = DashStyles.Dot;
			this.pens[11] = cpfpen;
			cpfpen = new CPFPen(Color.Black, 2f);
			cpfpen.DashStyle = DashStyles.Dash;
			this.pens[10] = cpfpen;
			cpfpen = new CPFPen(Color.Black, 2f);
			this.pens[12] = cpfpen;
			cpfpen = new CPFPen(Color.Black, 3f);
			this.pens[13] = cpfpen;
		}

		public void DrawLine(DrawingContext g, float x, float y, float x2, float y2, RangeBorderStyle style)
		{
			this.DrawLine(g, x, y, x2, y2, style.Style, style.Color, null);
		}

		public void DrawLine(DrawingContext g, float x, float y, float x2, float y2, BorderLineStyle style, Color color, CPFPen bgPen = null)
		{
			bool flag = style == BorderLineStyle.None;
			if (!flag)
			{
				CPFPen cpfpen = this.pens[(int)style];
				Stroke stroke = cpfpen.Stroke;
				Brush brush = cpfpen.Brush;
				Point point = new Point(ref x, ref y);
				Point point2 = new Point(ref x2, ref y2);
				g.DrawLine(stroke, brush, point, point2);
				bool flag2 = style == BorderLineStyle.DoubleLine && bgPen != null;
				if (flag2)
				{
					lock (bgPen)
					{
						stroke = bgPen.Stroke;
						Brush brush2 = bgPen.Brush;
						point = new Point(ref x, ref y);
						point2 = new Point(ref x2, ref y2);
						g.DrawLine(stroke, brush2, point, point2);
					}
				}
			}
		}

		public void Dispose()
		{
		}

		private static BorderPainter instance;

		private readonly CPFPen[] pens = new CPFPen[14];
	}
}