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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Shapes;
//--< using >--

using System.IO; //Folder, Directory
using System.Windows.Forms;
using System.Windows.Media.Animation;
//--</ using >--

namespace Work3110Animation
{
    /// <summary>
    /// Логика взаимодействия для SlideShow.xaml
    /// </summary>
    public partial class SlideShow : Window
    {
        List<BitmapImage> bitmapImages = new List<BitmapImage>();
        Storyboard storyboard = new Storyboard();
        int i = 0;
        bool flag = false;
        public SlideShow()
        {
            InitializeComponent();
        }

        private void bt_Select_Click(object sender, RoutedEventArgs e)
        {
            FolderBrowserDialog folderDialog = new FolderBrowserDialog();
            folderDialog.ShowNewFolderButton = false;
            folderDialog.SelectedPath = AppDomain.CurrentDomain.BaseDirectory;
            DialogResult result = folderDialog.ShowDialog();
            string[] imageEx =
            {
                ".jpeg",
                ".jpg",
                ".png",
                ".bmp",
                ".jp2",
                ".jxr",
                ".gif",
                ".pic",
                ".ico",
                ".svg",
                ".avif"
            };
            if (result == System.Windows.Forms.DialogResult.OK)
            {

                DirectoryInfo folder = new DirectoryInfo(folderDialog.SelectedPath);
                if (folder.Exists)
                {
                    //------< @Loop: Files >------
                    foreach (var fileInfo in folder.GetFiles())
                    {
                        if (imageEx.Contains(fileInfo.Extension))
                            bitmapImages.Add(new BitmapImage(new Uri(fileInfo.FullName, UriKind.Absolute)));
                    }
                }
            }
            i = 0;
            im1.Source = bitmapImages[i];
            Curr_im.Content = $"{i + 1}/{bitmapImages.Count}";
            InitAnimimation();
        }

        private void show_Click(object sender, RoutedEventArgs e)
        {

        }

        private void bt_StopAnimation_Click(object sender, RoutedEventArgs e)
        {
            storyboard.Pause();
        }

        private void bt_Prev_Click(object sender, RoutedEventArgs e)
        {
            i--;
            if (i == -1) i = bitmapImages.Count-1;
            storyboard.Seek(TimeSpan.FromSeconds(i+1));
            im1.Source = bitmapImages[i];
            Curr_im.Content = $"{i+1}/{bitmapImages.Count}";

        }

        private void InitAnimimation()
        {
            var animation = new ObjectAnimationUsingKeyFrames();
            Storyboard.SetTarget(animation, im1);
            Storyboard.SetTargetProperty(animation, new PropertyPath("Source"));
            TimeSpan currentInteval = TimeSpan.FromMilliseconds(1);
            foreach (var imageName in bitmapImages)
            {
                ObjectKeyFrame keyFrame = new DiscreteObjectKeyFrame();
                keyFrame.Value = imageName;
                keyFrame.KeyTime = currentInteval;
                animation.KeyFrames.Add(keyFrame);
                currentInteval = currentInteval.Add(TimeSpan.FromSeconds(1));
            }
            storyboard.RepeatBehavior = RepeatBehavior.Forever;
            storyboard.Children.Add(animation);
            storyboard.Begin();
            storyboard.Pause();
        }
        private void bt_StartAnimation_Click(object sender, RoutedEventArgs e)
        {
            storyboard.Resume();
            Curr_im.Content = $"{storyboard.GetCurrentTime().Seconds}/{bitmapImages.Count}";

        }

        private void bt_next_Click(object sender, RoutedEventArgs e)
        {
            i++;
            if (i == bitmapImages.Count) i = 0;
            storyboard.Seek(TimeSpan.FromSeconds(i+1));
            im1.Source = bitmapImages[i];
            Curr_im.Content = $"{i + 1}/{bitmapImages.Count}";
        }

        private void Curr_im_TextInput(object sender, TextCompositionEventArgs e)
        {
        }

        private void Curr_im_TargetUpdated(object sender, DataTransferEventArgs e)
        {
        }

        private void Curr_im_DataContextChanged(object sender, DependencyPropertyChangedEventArgs e)
        {
            System.Windows.MessageBox.Show("A1kkkk");

        }
    }
}