aivfo-tl-3.0/aivfo-front-manament-2.0/ivf_tl_Manage/UserControls/ProgressbarUserControl.xaml.cs

using System;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Input;

namespace ivf_tl_Manage.UserControls
{
    /// <summary>
    /// ProgressbarUserControl.xaml 的交互逻辑
    /// </summary>
    public partial class ProgressbarUserControl : UserControl
    {
        /// <summary>
        /// 进度条变化事件
        /// </summary>
        public event Action<double> ProChangendEvent;

        /// <summary>
        /// 操作之前发生的事件
        /// </summary>
        public event Action BeforeInteractionEvent;

        /// <summary>
        /// 操作进度条之后发生的事件
        /// </summary>
        public event Action<double> AfterInteractionEvent;

        /// <summary>
        /// 获取发育时长事件
        /// </summary>
        public event Func<double, string> LengthDevelopmentEvent;


        public ProgressbarUserControl()
        {
            InitializeComponent();
            this._videoPro.AddHandler(Slider.PreviewMouseLeftButtonUpEvent, new MouseButtonEventHandler(_videoPro_PreviewMouseLeftButtonUp), true);
            this._videoPro.AddHandler(Slider.PreviewMouseLeftButtonDownEvent, new MouseButtonEventHandler(_videoPro_PreviewMouseLeftButtonDown), true);
        }

        public bool IsUpdata
        {
            get { return (bool)GetValue(IsUpdataProperty); }
            set { SetValue(IsUpdataProperty, value); }
        }

        // Using a DependencyProperty as the backing store for IsUpdata.  This enables animation, styling, binding, etc...
        public static readonly DependencyProperty IsUpdataProperty =
            DependencyProperty.Register("IsUpdata", typeof(bool), typeof(ProgressbarUserControl), new PropertyMetadata(false));


        public string CurrentFaYuTimeString
        {
            get { return (string)GetValue(CurrentFaYuTimeStringProperty); }
            set { SetValue(CurrentFaYuTimeStringProperty, value); }
        }

        // Using a DependencyProperty as the backing store for CurrentFaYuTimeString.  This enables animation, styling, binding, etc...
        public static readonly DependencyProperty CurrentFaYuTimeStringProperty =
            DependencyProperty.Register("CurrentFaYuTimeString", typeof(string), typeof(ProgressbarUserControl), new PropertyMetadata("00h:00m"));


        public double VideoAllTime
        {
            get { return (double)GetValue(VideoAllTimeProperty); }
            set { SetValue(VideoAllTimeProperty, value); }
        }

        // Using a DependencyProperty as the backing store for VideoAllTime.  This enables animation, styling, binding, etc...
        public static readonly DependencyProperty VideoAllTimeProperty =
            DependencyProperty.Register("VideoAllTime", typeof(double), typeof(ProgressbarUserControl), new PropertyMetadata(1d));

        public double VideoCurrentTime
        {
            get { return (double)GetValue(VideoCurrentTimeProperty); }
            set { SetValue(VideoCurrentTimeProperty, value); }
        }

        // Using a DependencyProperty as the backing store for VideoCurrentTime.  This enables animation, styling, binding, etc...
        public static readonly DependencyProperty VideoCurrentTimeProperty =
            DependencyProperty.Register("VideoCurrentTime", typeof(double), typeof(ProgressbarUserControl), new PropertyMetadata(0d, new PropertyChangedCallback(VideoCurrentTimePropertyChangedCallback)));

        private static void VideoCurrentTimePropertyChangedCallback(DependencyObject d, DependencyPropertyChangedEventArgs e)
        {
            if (!(d is ProgressbarUserControl source)) return;
            if (!source.IsUpdataFun(source)) return;
            if (source.isInChange) return;
            if (!(e.NewValue is double newTime)) return;
            source._PlayTime.Text = source.RevertToTime(newTime);
            source._AllTime.Text = source.RevertToTime(source.VideoAllTime - newTime);
            source._videoPro.Value = newTime;
        }

        /// <summary>
        /// 进度条操作开始
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        /// <exception cref="NotImplementedException"></exception>
        private void _videoPro_PreviewMouseLeftButtonDown(object sender, MouseButtonEventArgs e)
        {
            if (!IsUpdataFun(this)) return;
            BeforeInteractionEvent?.Invoke();
        }

        /// <summary>
        /// 进度条操作结束
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        /// <exception cref="NotImplementedException"></exception>
        private void _videoPro_PreviewMouseLeftButtonUp(object sender, MouseButtonEventArgs e)
        {
            if (!IsUpdataFun(this)) return;
            AfterInteractionEvent?.Invoke(this._videoPro.Value);
        }

        /// <summary>
        /// 开始拖动进度条
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void _videoPro_DragStarted(object sender, System.Windows.Controls.Primitives.DragStartedEventArgs e)
        {
            if (!IsUpdataFun(this)) return;
            BeforeInteractionEvent?.Invoke();
        }

        /// <summary>
        /// 拖动进度条
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void _videoPro_DragDelta(object sender, System.Windows.Controls.Primitives.DragDeltaEventArgs e)
        {
            if (!IsUpdataFun(this)) return;
            ProChangendEvent?.Invoke(this._videoPro.Value);
        }

        bool isInChange = false;
        double newTime = 0d;
        string newFayu = "00h:00m";

        /// <summary>
        /// 进度条改变
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void _videoPro_ValueChanged(object sender, RoutedPropertyChangedEventArgs<double> e)
        {
            if (!IsUpdataFun(this)) return;
            newTime = this._videoPro.Value;
            this._PlayTime.Text = RevertToTime(newTime);
            this._AllTime.Text = RevertToTime(VideoAllTime - newTime);
            isInChange = true;
            VideoCurrentTime = newTime;
            isInChange = false;
            newFayu = LengthDevelopmentEvent?.Invoke(_videoPro.Value);
            if (string.IsNullOrEmpty(newFayu)) newFayu = "00h:00m";
            CurrentFaYuTimeString = newFayu;
        }

        /// <summary>
        /// 转换为时分秒格式
        /// </summary>
        /// <param name="timespan"></param>
        /// <returns></returns>
        private string RevertToTime(double millisecond)
        {
            TimeSpan timespan = TimeSpan.FromMilliseconds(millisecond);
            return $"{(timespan.Days * 24 + timespan.Hours).ToString("D2")}:{timespan.Minutes.ToString("D2")}:{(timespan.Seconds + ((int)Math.Round(timespan.Milliseconds / 1000.00))).ToString("D2")}";
        }

        private bool IsUpdataFun(ProgressbarUserControl source)
        {
            if (source.IsLoaded && source.IsUpdata) return true;
            return false;
        }
    }
}