using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using GeoSigma;
using ScintillaNET;
using WeifenLuo.WinFormsUI.Docking;

namespace LibTest
{
    public partial class FormTest : Form
    {
        
        private string dockDefaultPath = "";
        private string dockPanelPath = "";
        private FrmLayers frmLayers;
        private FrmProperty frmProperty;
        private FrmOutput frmOutput;
        private FrmDoc frmDoc;
        private readonly ToolStripRenderer _toolStripProfessionalRenderer = new ToolStripProfessionalRenderer();
        private Scintilla scintilla;
        private DockPanel dockPanel;
        public FormTest()
        {
            InitializeComponent();
            //AutoScaleMode = AutoScaleMode.Dpi;
            ////dockPanel = this.dockPanelTest1.MainPanel;
            ////dockPanel = dockPanel1;
            //vsToolStripExtender1.DefaultRenderer = _toolStripProfessionalRenderer;
            //SetSchema();

            //this.scintilla = new Scintilla();

            //this.Controls.Add(this.scintilla);
            //this.scintilla.BorderStyle = BorderStyle.None;
            //this.scintilla.Width = 300;
            //this.scintilla.Height = 20;
            //scintilla.Location = new Point(200, 200);
            //this.scintilla.VScrollBar = false;
            //this.scintilla.HScrollBar = false;

            //TestClass test = new TestClass();
        }

        private void FormTest_Load(object sender, EventArgs e)
        {
            //if (dockPanel != null)
            //{
            //    this.dockPanel.DocumentStyle = DocumentStyle.DockingMdi;
            //    this.dockDefaultPath = Path.Combine(Path.GetDirectoryName(Application.ExecutablePath), "DockDefault.config");
            //    this.dockPanelPath = Path.Combine(Path.GetDirectoryName(Application.ExecutablePath), "DockPanel.config");
            //    //this.InitDockPanel();
            //    this.tssStatus.Text = "就绪";
            //}
        }

        private void button1_Click(object sender, EventArgs e)
        {
            //FrmSigmaColor frmColor = new FrmSigmaColor();
            //frmColor.SelectedColor = ((Button)sender).BackColor;
            //if (frmColor.ShowDialog() == DialogResult.OK)
            //{
            //    this.button1.BackColor = frmColor.SelectedColor;
            //}
            string strFile = @"C:\temp\TestWeb\ceshi501.dfd";

            Encoding encoding = EncodingType.GetType(strFile);
            //Encoding.RegisterProvider(CodePagesEncodingProvider.Instance);// 使用了gb2312 需要定义
           // Encoding encoding = Encoding.GetEncoding("GB2312");
            string strContent = File.ReadAllText(strFile, Encoding.Default);
            encoding = Encoding.Default;
            string strContent2 = ReadFileAsString(strFile, encoding);
        }
        public string ReadFileAsString(string filePath, Encoding encoding)
        {
            if (!File.Exists(filePath))
            {
                return string.Empty;
            }
            using (StreamReader reader = new StreamReader(filePath, encoding))
            {
                //  fileInfo.OpenText();
                return reader.ReadToEnd();
            }
        }
        public Encoding GetEncoding(string filePath)
        {
            if (filePath == null)
            {
                throw new ArgumentNullException("filePath");
            }
            Encoding encoding1 = Encoding.Default;
            if (File.Exists(filePath))
            {
                try
                {
                    using (FileStream stream1 = new FileStream(filePath, FileMode.Open, FileAccess.Read))
                    {
                        if (stream1.Length > 0)
                        {
                            using (StreamReader reader1 = new StreamReader(stream1, true))
                            {
                                char[] chArray1 = new char[1];
                                reader1.Read(chArray1, 0, 1);
                                encoding1 = reader1.CurrentEncoding;
                                reader1.BaseStream.Position = 0;
                                if (encoding1 == Encoding.UTF8)
                                {
                                    byte[] buffer1 = encoding1.GetPreamble();
                                    if (stream1.Length >= buffer1.Length)
                                    {
                                        byte[] buffer2 = new byte[buffer1.Length];
                                        stream1.Read(buffer2, 0, buffer2.Length);
                                        for (int num1 = 0; num1 < buffer2.Length; num1++)
                                        {
                                            if (buffer2[num1] != buffer1[num1])
                                            {
                                                encoding1 = Encoding.Default;
                                                break;
                                            }
                                        }
                                    }
                                    else
                                    {
                                        encoding1 = Encoding.Default;
                                    }
                                }
                            }
                        }
                    }
                }
                catch (Exception exception1)
                {
                    throw;
                }
                if (encoding1 == null)
                {
                    encoding1 = Encoding.UTF8;
                }
            }
            return encoding1;
        }
        private void richTextBox1_SelectionChanged(object sender, EventArgs e)
        {
            //richTextBox1.SelectedRtf
        }
    }
    public class EncodingType
    {
        /// <summary>
        /// 给定文件的路径，读取文件的二进制数据，判断文件的编码类型
        /// </summary>
        /// <param name="fileName">文件路径</param>
        /// <returns>文件的编码类型</returns>
        public static System.Text.Encoding GetType(string fileName)
        {
            FileStream fs = new FileStream(fileName, FileMode.Open, FileAccess.Read);
            Encoding r = GetType(fs);
            fs.Close();
            return r;
        }

        /// <summary>
        /// 通过给定的文件流，判断文件的编码类型
        /// </summary>
        /// <param name="fs">文件流</param>
        /// <returns>文件的编码类型</returns>
        public static System.Text.Encoding GetType(FileStream fs)
        {
            byte[] unicode = new byte[] { 0xFF, 0xFE, 0x41 };
            byte[] unicodeBIG = new byte[] { 0xFE, 0xFF, 0x00 };
            byte[] uTF8 = new byte[] { 0xEF, 0xBB, 0xBF }; // 带BOM

            BinaryReader r = new BinaryReader(fs, System.Text.Encoding.Default);
            int i;
            int.TryParse(fs.Length.ToString(), out i);
            byte[] ss = r.ReadBytes(i);
            Encoding reVal = GetType(ss);
            r.Close();
            return reVal;
        }
        /// <summary>
        /// 获得格式编码
        /// </summary>
        /// <param name="data">数据内容</param>
        /// <returns>编码</returns>
        public static System.Text.Encoding GetType(byte[] data)
        {
            Encoding reVal = Encoding.Default;
            if (IsUTF8Bytes(data) || (data[0] == 0xEF && data[1] == 0xBB && data[2] == 0xBF))
            {
                reVal = Encoding.UTF8;
            }
            else if (data[0] == 0xFE && data[1] == 0xFF && data[2] == 0x00)
            {
                reVal = Encoding.BigEndianUnicode;
            }
            else if (data[0] == 0xFF && data[1] == 0xFE && data[2] == 0x41)
            {
                reVal = Encoding.Unicode;
            }
            return reVal;
        }
        /// <summary>
        /// 判断是否是不带 BOM 的 UTF8 格式
        /// </summary>
        /// <param name="data">数据</param>
        /// <returns>是否UTF8</returns>
        private static bool IsUTF8Bytes(byte[] data)
        {
            int charByteCounter = 1;
            // 计算当前正分析的字符应还有的字节数
            byte curByte; // 当前分析的字节.
            for (int i = 0; i < data.Length; i++)
            {
                curByte = data[i];
                if (charByteCounter == 1)
                {
                    if (curByte >= 0x80)
                    {
                        // 判断当前
                        while (((curByte <<= 1) & 0x80) != 0)
                        {
                            charByteCounter++;
                        }
                        // 标记位首位若为非0 则至少以2个1开始 如:110XXXXX...........1111110X
                        if (charByteCounter == 1 || charByteCounter > 6)
                        {
                            return false;
                        }
                    }
                }
                else
                {
                    // 若是UTF-8 此时第一位必须为1
                    if ((curByte & 0xC0) != 0x80)
                    {
                        return false;
                    }
                    charByteCounter--;
                }
            }
            if (charByteCounter > 1)
            {
                throw new Exception("非预期的byte格式");
            }
            return true;
        }
    }

    public class TestClass
    {
        public Color feildColor;
        public Color FeildColor
        {
            get
            {
                return feildColor;
            }
            set
            {
                feildColor = value;
            }
        }
    }
}