FormMain.cs

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.IO;
using System.Runtime.InteropServices;
using System.Net;

namespace LectureSelector
{

    public partial class FormMain : System.Windows.Forms.Form
    {
        /*
        public void GenerateFile(string path)
        {

            var res = File.ReadAllText(path).Split(new string[] { "\n\r\n\r" }, StringSplitOptions.RemoveEmptyEntries);
            for (int i = 0; i < res.Length; i++)
            {
                var w = File.CreateText(@".\gen\" + (i + 1).ToString() + ".txt");
                w.WriteLine(res[i]);
                w.Close();
            }
        }
        */

        private bool initConfigure()
        {
            if (!Directory.Exists(@".\new"))
                try
                {
                    Directory.CreateDirectory(@".\new");
                }
                catch (IOException)
                {
                    MessageBox.Show("无法创建new文件夹","错误");
                    return false;
                }
            if (!Directory.Exists(@".\old"))
                try
                {
                    Directory.CreateDirectory(@".\old");
                }
                catch (IOException)
                {
                    MessageBox.Show("无法创建old文件夹", "错误");
                    return false;
                }
            
            return true;

        }

        private int high = 0, low = 0;
        private bool moved = false;
        private bool state = false;
        private int number = 88;
        private int time = 0;

        public FormMain()
        {
            //GenerateFile(".\\file.txt");
            InitializeComponent();
#if DEBUG
            textBoxPassword.Visible = false;
            buttonRun.Visible = true;
#endif
        }

        private void FormMain_SizeChanged(object sender, EventArgs e)
        {
            if (!moved)
            {
                labelHigh.Left = Width / 2 - labelHigh.Width;
                labelLow.Left = Width / 2;
                labelHigh.Top = Height / 2 - labelHigh.Height;
                labelLow.Top = Height / 2 - labelLow.Height;
            }

            buttonClose.Left = Width - buttonClose.Width;
            buttonClose.Top = 0;

            buttonMaxiumum.Left = Width - buttonClose.Width - buttonMaxiumum.Width;
            buttonMaxiumum.Top = 0;

            buttonRun.Left = Width / 2 - buttonRun.Width / 2;
            buttonRun.Top = Height - buttonRun.Height - Height / 20;

            textBoxPassword.Left = Width / 2 - textBoxPassword.Width / 2;
            textBoxPassword.Top = Height - textBoxPassword.Height - Height / 20;

            richTextBoxMain.Height = 17 * (Height - buttonClose.Height) / 20;
            richTextBoxMain.Width = 17 * Width / 20;
            richTextBoxMain.Left = Width / 2 - richTextBoxMain.Width / 2;
            richTextBoxMain.Top = Height / 2 - richTextBoxMain.Height / 2;

            numericUpDownFontSize.Left = Width / 2 - numericUpDownFontSize.Width / 2;
            numericUpDownFontSize.Top = Height - numericUpDownFontSize.Height - Height / 40;

            checkBoxDebug.Left = 3;
            checkBoxDebug.Top = Height - checkBoxDebug.Height - 3;

            labelTime.Top = 8;
            labelTime.Left = Width / 2 - labelTime.Width / 2;
        }

        private void buttonClose_Click(object sender, EventArgs e)
        {
            Environment.Exit(0);
        }

        private void buttonMaxiumum_Click(object sender, EventArgs e)
        {
            this.WindowState = FormWindowState.Maximized;
        }

        private void timerMain_Tick(object sender, EventArgs e)
        {
            var rnd = new Random();
            high = rnd.Next(0, 9);
            low = rnd.Next(0, 9);
            labelHigh.Text = high.ToString();
            labelLow.Text = low.ToString();
        }

        private void buttonRun_Click(object sender, EventArgs e)
        {
            if (state)
            {
                var paths = Directory.GetFiles(@".\new");
                if (paths.Length > 0)
                {
                    var index = (new Random()).Next(0, paths.Length - 1);
                    var path = paths[index];
                    number = int.Parse(Path.GetFileNameWithoutExtension(path));
                    if (File.Exists(path))
                    {
                        var str = File.ReadAllText(path);
                        richTextBoxMain.Text = str
                            .Replace("\n", "\n    ")
                            .Replace("    *", "  ※ ");
#if !DEBUG
                        if (!checkBoxDebug.Checked)
                            File.Move(path, @".\old\" + Path.GetFileName(path));
#endif
                    }
                }

                labelHigh.Text = ((number - number % 10) / 10).ToString();
                labelLow.Text = (number % 10).ToString();
                timerMain.Stop();
                state = false;
                buttonRun.Visible = false;

                timerFade.Start();
            }
            else
            {
                timerMain.Start();
                state = true;
                buttonRun.Text = "结束";
            }
        }


        private void timerFade_Tick(object sender, EventArgs e)
        {
            labelHigh.Visible = false;
            labelLow.Visible = false;

            labelHigh.Font = new Font("微软雅黑", 18);
            labelLow.Font = new Font("微软雅黑", 18);

            labelHigh.Left = 5;
            labelLow.Left = labelHigh.Width + 5;
            labelHigh.Top = 3;
            labelLow.Top = 3;

            labelHigh.Visible = true;
            labelLow.Visible = true;

            moved = true;

            richTextBoxMain.Visible = true;
            numericUpDownFontSize.Visible = true;
            labelTime.Visible = true;

            timerCount.Start();
            timerFade.Stop();
        }

        private void FormMain_Load(object sender, EventArgs e)
        {
            initConfigure();
            richTextBoxMain.SelectionIndent = 4;
            richTextBoxMain.SelectionRightIndent = 4;
        }

        const int CURSOR_HTLEFT = 10;
        const int CURSOR_HTRIGHT = 11;
        const int CURSOR_HTTOP = 12;
        const int CURSOR_HTTOPLEFT = 13;
        const int CURSOR_HTTOPRIGHT = 14;
        const int CURSOR_HTBOTTOM = 15;
        const int CURSOR_HTBOTTOMLEFT = 16;
        const int CURSOR_HTBOTTOMRIGHT = 17;

        private void numericUpDownFontSize_ValueChanged(object sender, EventArgs e)
        {
            richTextBoxMain.Font = new Font("微软雅黑", (float)(numericUpDownFontSize.Value > 8 ? numericUpDownFontSize.Value : 8));
        }

        private void timerCount_Tick(object sender, EventArgs e)
        {
            time++;
            labelTime.Text = $"{((time - time % 60) / 60):00}:{(time % 60):00}";
        }

        private void textBoxPassword_TextChanged(object sender, EventArgs e)
        {
            if (textBoxPassword.Text == "0987")
            {
                textBoxPassword.Visible = false;
                buttonRun.Visible = true;
            }
        }

        protected override void WndProc(ref Message m)
        {
            switch (m.Msg)
            {
                case 0x0084:
                    base.WndProc(ref m);
                    Point vPoint = new Point((int)m.LParam & 0xFFFF,
                        (int)m.LParam >> 16 & 0xFFFF);
                    vPoint = PointToClient(vPoint);
                    if (vPoint.X <= 5)
                        if (vPoint.Y <= 5)
                            m.Result = (IntPtr)CURSOR_HTTOPLEFT;
                        else if (vPoint.Y >= ClientSize.Height - 5)
                            m.Result = (IntPtr)CURSOR_HTBOTTOMLEFT;
                        else m.Result = (IntPtr)CURSOR_HTLEFT;
                    else if (vPoint.X >= ClientSize.Width - 5)
                        if (vPoint.Y <= 5)
                            m.Result = (IntPtr)CURSOR_HTTOPRIGHT;
                        else if (vPoint.Y >= ClientSize.Height - 5)
                            m.Result = (IntPtr)CURSOR_HTBOTTOMRIGHT;
                        else m.Result = (IntPtr)CURSOR_HTRIGHT;
                    else if (vPoint.Y <= 5)
                        m.Result = (IntPtr)CURSOR_HTTOP;
                    else if (vPoint.Y >= ClientSize.Height - 5)
                        m.Result = (IntPtr)CURSOR_HTBOTTOM;
                    break;
                case 0x0201:                //鼠标左键按下的消息  
                    m.Msg = 0x00A1;         //更改消息为非客户区按下鼠标  
                    m.LParam = IntPtr.Zero; //默认值  
                    m.WParam = new IntPtr(2);//鼠标放在标题栏内  
                    base.WndProc(ref m);
                    break;
                default:
                    base.WndProc(ref m);
                    break;
            }
        }
        /*
        public bool httpDownload(string url, string path)
        {
            string tempPath = Path.GetDirectoryName(path) + @"\temp";
            Directory.CreateDirectory(tempPath);
            string tempFile = tempPath + @"\" + Path.GetFileName(path) + ".temp";
            if (File.Exists(tempFile))
            {
                File.Delete(tempFile);
            }
            try
            {
                FileStream fs = new FileStream(tempFile, FileMode.Append, FileAccess.Write, FileShare.ReadWrite);
                HttpWebRequest request = WebRequest.Create(url) as HttpWebRequest;
                HttpWebResponse response = request.GetResponse() as HttpWebResponse;
                Stream responseStream = response.GetResponseStream();
                byte[] bArr = new byte[1024];
                int size = responseStream.Read(bArr, 0, (int)bArr.Length);
                while (size > 0)
                {
                    fs.Write(bArr, 0, size);
                    size = responseStream.Read(bArr, 0, (int)bArr.Length);
                }
                fs.Close();
                responseStream.Close();
                File.Move(tempFile, path);
                return true;
            }
            catch (Exception ex)
            {
                MessageBox.Show("远程连接失败", "错误");
                return false;
            }
        }
        */
    }
}