CentrifugalTime/ViewModels/WorkRunViewModel.cs

using DefaultEdit.Communication;
using DefaultEdit.Core;
using DefaultEdit.Log4xml;
using DefaultEdit.Model;
using DefaultEdit.Views;
using Microsoft.Xaml.Behaviors;
using Prism.Commands;
using Prism.Events;
using Prism.Ioc;
using Prism.Mvvm;
using Prism.Regions;
using System;
using System.Collections.ObjectModel;
using System.Collections.Specialized;
using System.Diagnostics;
using System.Threading;
using System.Windows.Controls;

namespace DefaultEdit.ViewModels
{
    public class WorkRunViewModel : BindableBase
    {
        private Management _management;
        private IContainerProvider _container;
        private IEventAggregator _eventAggregator;
        private IRegionManager _regionManager;




        private ObservableCollection<string> _Logs = new ObservableCollection<string>();
        public ObservableCollection<string> Logs { get => _Logs; set => _Logs = value; }
        public Management Management { get => _management; set => _management =  value ; }


        private DelegateCommand _OpenRoleLoginViewCommand;
        public DelegateCommand OpenRoleLoginViewCommand =>
            _OpenRoleLoginViewCommand ?? ( _OpenRoleLoginViewCommand = new DelegateCommand(RoleLoginViewShow) );

        private DelegateCommand _SwitchModeCommand;
        public DelegateCommand  SwitchModeCommand =>
            _SwitchModeCommand ?? ( _SwitchModeCommand = new DelegateCommand(SwitchModeMethod) );

        private DelegateCommand _ClearRunDataCommand;
        public DelegateCommand ClearRunDataCommand =>
            _ClearRunDataCommand ?? ( _ClearRunDataCommand = new DelegateCommand(ClearRunData) );


        private DelegateCommand _ClearLogDataCommand;
        public DelegateCommand  ClearLogDataCommand =>
            _ClearLogDataCommand ?? ( _ClearLogDataCommand = new DelegateCommand(ClearLogData) );

        public WorkRunViewModel(IContainerProvider container, IRegionManager regionManager, IEventAggregator eventAggregator)
        {
            _container = container;
            _eventAggregator = eventAggregator;
            _regionManager = regionManager;
            Management = container.Resolve<Management>();
            LogHelper.logChangHandler += ShowLog;
            LogHelper.Info("===========================程序启动==========================");
            Management.CurentApplicationSettings = FileHelper.ReadApplicationConfiguration();
            LogHelper.Info("加载配置文件完成");
            Management. ConnectPlc();
              //创建一个定时器，每秒更新一次时间
              var timer = new System.Timers.Timer(1000);
            timer.Elapsed += (sender, e) =>
            {
                Management.DateTimeNow = DateTime.Now;
            };
            timer.Start();
        }


        private void ShowLog(Log4xml.Log log)
        {
            System.Windows.Application.Current.Dispatcher.Invoke(new Action(() =>
            {
                string str = log.Msg.Trim();
                while ( true )
                {
                    if ( str.Length > 80 )
                    {
                        Logs.Add(str.Substring(0, 80));
                        str = log.Time + " " + str.Substring(80);
                    }
                    else
                    {
                        Logs.Add(str);
                        break;
                    }
                }
                if ( Logs.Count > 100 )
                {
                    Logs.RemoveAt(0);
                }
            }));

        }



        void SwitchModeMethod() 
        { 
        
        
        
        
        }
        void ClearRunData() 
        {

            Management.RuningData.Clear();
        
        }

        void ClearLogData()
        {

            Logs.Clear();

        }


        void RoleLoginViewShow()
        {
            RoleLoginView roleLoginView = new RoleLoginView();
            roleLoginView.ShowDialog();
        }






    }


    public class AutoScrollBehavior : Behavior<ListBox>
    {
        protected override void OnAttached()
        {
            base.OnAttached();
            var items = AssociatedObject.Items;
            if ( items is INotifyCollectionChanged incc )
            {
                incc.CollectionChanged += OnCollectionChanged;
            }
        }

        private void OnCollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
        {
            if ( e.Action == NotifyCollectionChangedAction.Add && AssociatedObject.HasItems )
            {
                AssociatedObject.Dispatcher.BeginInvoke(new Action(() =>
                {

                    AssociatedObject.ScrollIntoView(AssociatedObject.Items[ AssociatedObject.Items.Count - 1 ]);
                }));

            }
        }

        protected override void OnDetaching()
        {
            if ( AssociatedObject.Items is INotifyCollectionChanged incc )
            {
                incc.CollectionChanged -= OnCollectionChanged;
            }
            base.OnDetaching();
        }
    }
}