using System;
using System.Drawing;
using System.Threading;
using System.Windows.Forms;
using UAS_MES.PublicMethod;

namespace UAS_MES.CustomControl.RichText
{
    public partial class RichTextAutoBottom : RichTextBox
    {
        Thread thread;
        string FileName = Application.StartupPath + @"\Resources\Sound\Windows Background.wav";

        public RichTextAutoBottom()
        {
            InitializeComponent();
            TextChanged += RichTextBox_TextChange;

        }

        private void RichTextBox_TextChange(object sender, EventArgs e)
        {
            SelectionStart = Text.Length;
            ScrollToCaret();
        }

        /// <summary>
        /// color设置AppendText的颜色
        /// </summary>
        /// <param name="str"></param>
        /// <param name="color"></param>
        public void AppendText(string str, Color color)
        {
            SelectionColor = color;
            base.AppendText(str);
            //如果颜色是红色则进行提示音
            if (color == Color.Red && Entity.SystemInf.CheckAudioEnable)
            {
                thread = new Thread(PlaySound);
                thread.Start();
            }
        }

        private void PlaySound()
        {
            //要加载COM组件:Microsoft speech object Library    
            if (!System.IO.File.Exists(FileName))
            {
                return;
            }
            SpeechLib.SpVoiceClass pp = new SpeechLib.SpVoiceClass();
            SpeechLib.SpFileStreamClass spFs = new SpeechLib.SpFileStreamClass();
            spFs.Open(FileName, SpeechLib.SpeechStreamFileMode.SSFMOpenForRead, true);
            SpeechLib.ISpeechBaseStream Istream = spFs as SpeechLib.ISpeechBaseStream;
            try
            {
                pp.SpeakStream(Istream, SpeechLib.SpeechVoiceSpeakFlags.SVSFIsFilename);
            }
            catch (Exception)
            {
                Entity.SystemInf.CheckAudioEnable = false;
            }
            spFs.Close();
        }
    }
}