using System;
using System.Collections.Generic;
using System.Text;
using System.Windows.Forms;
using OpenRa.FileFormats;
using System.Drawing;

namespace ShpViewer
{
	public class MapViewControl : Control
	{
		public int XScroll, YScroll;

		public Map Map;
		public TileSet TileSet;

		public MapViewControl()
		{
			SetStyle(ControlStyles.OptimizedDoubleBuffer, true);
			UpdateStyles();
		}

		static Font font = new Font( FontFamily.GenericMonospace, 10 );
		protected override void OnPaint(PaintEventArgs e)
		{
			base.OnPaint(e);
			if (Map == null || TileSet == null)
				return;

			Graphics g = e.Graphics;

			for (int x = 50; x >= 0; x--)
			{
				int tX = x + Map.XOffset + XScroll;
				if (tX < Map.XOffset || tX >= Map.XOffset + Map.Width)
					continue;

				for (int y = 50; y >= 0; y--)
				{
					int tY = y + Map.YOffset + YScroll;
					if (tY < Map.YOffset || tY >= Map.YOffset + Map.Height)
						continue;

					Terrain t;
					if (TileSet.tiles.TryGetValue(Map.MapTiles[tX, tY].tile, out t))
					{
						Bitmap b = t.GetTile(Map.MapTiles[tX, tY].image);
						if (b == null)
						{
							g.FillRectangle(Brushes.Blue, x * 24, y * 24, 24, 24);
							g.DrawString(string.Format("{0:x}", Map.MapTiles[tX, tY].image),
								font, Brushes.White, x * 24, y * 24);
						}
						else
							g.DrawImage(b, x * 24, y * 24);
					}
					else
					{
						g.FillRectangle(Brushes.Red, x * 24, y * 24, 24, 24);
						g.DrawString(string.Format("{0:x}", Map.MapTiles[tX, tY].tile),
							font, Brushes.White, x * 24, y * 24);
					}
				}
			}
		}
	}
}