using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.ComponentModel;

namespace Monitor.Class
{
  /// <summary>
  /// 异步操作
  /// </summary>
  public class CWorker
  {
    /// <summary>
    /// 对象
    /// </summary>
    private BackgroundWorker backgroundWorker;

    /// <summary>
    /// 后台执行的操作
    /// </summary>
    public Action BackgroundWork { get; set; }

    /// <summary>
    /// 后台任务执行完毕后事件
    /// </summary>
    public event EventHandler<BackgroundWorkerEventArgs> BackgroundWorkerCompleted;

    private BackgroundWorkerEventArgs _eventArgs;//异常参数

    /// <summary>
    /// 构造
    /// </summary>
    public CWorker()
    {
      _eventArgs = new BackgroundWorkerEventArgs();
      backgroundWorker = new BackgroundWorker();
      backgroundWorker.WorkerReportsProgress = true;
      backgroundWorker.WorkerSupportsCancellation = true;
      backgroundWorker.DoWork += new DoWorkEventHandler(backgroundWorker1_DoWork);
      backgroundWorker.RunWorkerCompleted += new RunWorkerCompletedEventHandler(backgroundWorker1_RunWorkerCompleted);
    }

    /// <summary>
    /// 开始工作
    /// </summary>
    public void BegionWork()
    {
      if (backgroundWorker.IsBusy)
        return;
      backgroundWorker.RunWorkerAsync();
    }

    /// <summary>
    /// 工作
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    private void backgroundWorker1_DoWork(object sender, DoWorkEventArgs e)
    {
      if (BackgroundWork != null)
      {
        try
        {
          BackgroundWork();
        }
        catch (Exception ex)
        {
          _eventArgs.BackGroundException = ex;
        }
      }
    }

    /// <summary>
    /// 完成
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    private void backgroundWorker1_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
    {
      if (this.BackgroundWorkerCompleted != null)
      {
        this.BackgroundWorkerCompleted(null, _eventArgs);
      }
    }
  }

  /// <summary>
  /// 事件
  /// </summary>
  public class BackgroundWorkerEventArgs : EventArgs
  {
    /// <summary>
    /// 后台程序运行时抛出的异常
    /// </summary>
    public Exception BackGroundException { get; set; }
  }
}

namespace Monitor
{
  /// <summary>
  /// Splash.xaml 的交互逻辑
  /// </summary>
  public partial class Splash : Window
  {
    MainWindow m_MainWindow = null;//主窗口
    CWorker m_Work = null;//任务

    public Splash()
    {
      InitializeComponent();
      m_MainWindow = new MainWindow();//创建主窗口对象
      m_Work = new CWorker();
      m_Work.BackgroundWork = this.ProcessDo;
      m_Work.BackgroundWorkerCompleted += new EventHandler<BackgroundWorkerEventArgs>(m_Work_BackgroundWorkerCompleted);
    }

    /// <summary>
    /// 进度提示
    /// </summary>
    public void ProcessDo()
    {
      m_MainWindow.InitData(this);
    }

    /// <summary>
    /// 移动
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    private void Grid_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
    {
      this.DragMove();
    }

    /// <summary>
    /// 窗口加载
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    private void Window_Loaded(object sender, RoutedEventArgs e)
    {
      m_Work.BegionWork();
    }

    /// <summary>
    /// 执行完成
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    void m_Work_BackgroundWorkerCompleted(object sender, BackgroundWorkerEventArgs e)
    {
      m_MainWindow.Show();
      this.Close();
    }

    /// <summary>
    /// 赋值
    /// </summary>
    /// <param name="text"></param>
    private delegate void SetProcessLabelDelegate(string text, double processValue);
    public void SetProcessValue(string text, double processValue)
    {
      if (!Dispatcher.CheckAccess())
      {
        Dispatcher.Invoke(DispatcherPriority.Send, new SetProcessLabelDelegate(SetProcessValue), text, processValue);
        return;
      }
      this.lblProcess.Content = text;
      this.ProgressControlRealValue.Value = processValue;
    }
  }
}