using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Drawing;
using System.IO;


namespace MarimoDX
{


    public class Graph:IDisposable
    {

        public bool IsDisposed { get; private set; }

        public int Width { get; private set; }
        public int Height { get; private set; }

        public int GHandle { get; private set; }

        public Graph(string filename)
        {
            if (!File.Exists(filename)) { throw new FileNotFoundException("画像データが見つかりませんでした"); }
            int i = DX.FileRead_size(filename);
            if ((GHandle = DX.LoadGraph(filename)) == (int)(-1)) { throw new GraphException("画像読み込みで異常がおきました"); }
            int w, h;
            DX.GetGraphSize(GHandle, out w, out h);
            Width = w; Height = h;
        }

        public Graph(int GHandle)
        {
            this.GHandle = GHandle;
            int w, h;
            DX.GetGraphSize(GHandle, out w, out h);
            Width = w; Height = h;
        }

        /// <summary>
        /// 画像を描画します
        /// </summary>
        /// <param name="x">左上x座標</param>
        /// <param name="y">左上y座標</param>
        public void Draw(int x, int y)
        {
            DX.DrawGraph(x, y, GHandle, 1);
        }
        /// <summary>
        /// 画像を描画します
        /// </summary>
        /// <param name="p">左上の座標</param>
        public void Draw(Point p) { Draw(p.X, p.Y); }

        /// <summary>
        /// 画像を指定の大きさに拡大or縮小して描画します
        /// </summary>
        /// <param name="x">左上x座標</param>
        /// <param name="y">左上y座標</param>
        /// <param name="width">描画横幅</param>
        /// <param name="height">描画縦幅</param>
        public void Draw(int x, int y, int width, int height)
        {
            DX.DrawExtendGraph(x, y, x + width, y + height, GHandle, 1);
        }
        /// <summary>
        /// 画像を指定の大きさに拡大or縮小して描画します
        /// </summary>
        /// <param name="p">左上座標</param>
        /// <param name="width">描画横幅</param>
        /// <param name="height">描画縦幅</param>
        public void Draw(Point p, int width, int height)
        {
            Draw(p.X, p.Y, width, height);
        }
        #region 回転描画系
        /// <summary>
        /// 拡大、回転して描画
        /// </summary>
        /// <param name="x">左上x座標</param>
        /// <param name="y">左上y座標</param>
        /// <param name="ExtRate">拡大率</param>
        /// <param name="Angle">回転角度</param>
        public void Draw(int x,int y, double ExtRate, double Angle)
        {
            DX.DrawRotaGraph(x, y, ExtRate, Angle, GHandle, 1);
        }
        /// <summary>
        /// 拡大、回転して描画
        /// </summary>
        /// <param name="p">描画点、回転軸</param>
        /// <param name="ExtRate">拡大率</param>
        /// <param name="Angle">回転角度</param>
        public void Draw(Point p, double ExtRate, double Angle)
        {
            DX.DrawRotaGraph(p.X, p.Y, ExtRate, Angle, GHandle, 1);
        }
        /// <summary>
        /// 拡大、回転して描画
        /// </summary>
        /// <param name="x">左上x座標</param>
        /// <param name="y">左上y座標</param>
        /// <param name="cx">回転軸x座標</param>
        /// <param name="cy">回転軸y座標</param>
        /// <param name="ExtRate">拡大率</param>
        /// <param name="Angle">回転角度</param>
        public void Draw(int x, int y, int cx, int cy, double ExtRate, double Angle)
        {
            DX.DrawRotaGraph2(x, y, cx, cy, ExtRate, Angle, GHandle, 1);
        }
        /// <summary>
        /// 拡大、回転して描画
        /// </summary>
        /// <param name="p">左上座標</param>
        /// <param name="cx">回転軸x座標</param>
        /// <param name="cy">回転軸y座標</param>
        /// <param name="ExtRate">拡大率</param>
        /// <param name="Angle">回転角度</param>
        public void Draw(Point p, int cx, int cy, double ExtRate, double Angle)
        {
            DX.DrawRotaGraph2(p.X, p.Y, cx, cy, ExtRate, Angle, GHandle, 1);
        }
        /// <summary>
        /// 拡大、回転して描画
        /// </summary>
        /// <param name="p">左上座標</param>
        /// <param name="c">回転軸座標</param>
        /// <param name="ExtRate">拡大率</param>
        /// <param name="Angle">回転角度</param>
        public void Draw(Point p, Point c, double ExtRate, double Angle)
        {
            DX.DrawRotaGraph2(p.X, p.Y, c.X, c.Y, ExtRate, Angle, GHandle, 1);
        }
        /// <summary>
        /// 回転して描画
        /// </summary>
        /// <param name="x">左上x座標</param>
        /// <param name="y">左上y座標</param>
        /// <param name="Angle">回転角度</param>
        public void Draw(int x, int y, double Angle)
        {
            DX.DrawRotaGraph(x, y, 1, Angle, GHandle, 1);
        }
        /// <summary>
        /// 回転して描画
        /// </summary>
        /// <param name="p">描画点、回転軸</param>
        /// <param name="Angle">回転角度</param>
        public void Draw(Point p, double Angle)
        {
            DX.DrawRotaGraph(p.X, p.Y, 1, Angle, GHandle, 1);
        }
        /// <summary>
        /// 回転して描画
        /// </summary>
        /// <param name="x">左上x座標</param>
        /// <param name="y">左上y座標</param>
        /// <param name="cx">回転軸x座標</param>
        /// <param name="cy">回転軸y座標</param>
        /// <param name="Angle">回転角度</param>
        public void Draw(int x, int y, int cx, int cy, double Angle)
        {
            DX.DrawRotaGraph2(x, y, cx, cy, 1, Angle, GHandle, 1);
        }
        /// <summary>
        /// 回転して描画
        /// </summary>
        /// <param name="p">左上座標</param>
        /// <param name="cx">回転軸x座標</param>
        /// <param name="cy">回転軸y座標</param>
        /// <param name="Angle">回転角度</param>
        public void Draw(Point p, int cx, int cy, double Angle)
        {
            DX.DrawRotaGraph2(p.X, p.Y, cx, cy, 1, Angle, GHandle, 1);
        }
        /// <summary>
        /// 回転して描画
        /// </summary>
        /// <param name="p">左上座標</param>
        /// <param name="c">回転軸座標</param>
        /// <param name="Angle">回転角度</param>
        public void Draw(Point p, Point c, double Angle)
        {
            DX.DrawRotaGraph2(p.X, p.Y, c.X, c.Y, 1, Angle, GHandle, 1);
        }

        #endregion


        #region IDisposable メンバ

        public void Dispose()
        {
            if (IsDisposed) return;
            IsDisposed = true;
            DX.DeleteGraph(GHandle);
            GC.SuppressFinalize(this);
        }

        ~Graph()
        {
            Dispose();
        }

        #endregion
        /// <summary>
        /// 画像の分割読み込み
        /// </summary>
        /// <param name="filename">ファイル名</param>
        /// <param name="allnum">読み込み数</param>
        /// <param name="xnum">横の画像数</param>
        /// <returns></returns>
        public static Graph[] DivGraph(string filename, int allnum, int xnum)
        {
            int[] handles = new int[allnum];
            using (Bitmap bmp = new Bitmap(filename))
            {
                int h = (int)Math.Ceiling((double)(allnum / xnum));
                DX.LoadDivGraph(filename, allnum, xnum, h, (int)(bmp.Width / xnum), (int)(bmp.Height / h),out handles[0]);
            }
            Graph[] ret = new Graph[allnum];
            for (int i = 0; i < ret.Length; i++)
            {
                ret[i] = new Graph(handles[i]);
            }

            return ret;
        }
    }

    public class GraphException : Exception
    {
        public GraphException(string message)
            : base(message)
        {
        }
        public GraphException() : base() { }

    }
}