更换为wpf
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ww-rm
411
SpineViewer/ViewModels/ExplorerListViewModel.cs
Normal file
411
SpineViewer/ViewModels/ExplorerListViewModel.cs
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using CommunityToolkit.Mvvm.ComponentModel;
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using CommunityToolkit.Mvvm.Input;
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using NLog;
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using SFML.Audio;
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using Spine;
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using Spine.Exporters;
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using SpineViewer.Extensions;
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using SpineViewer.Models;
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using SpineViewer.Resources;
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using SpineViewer.Services;
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using SpineViewer.ViewModels;
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using System;
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using System.Collections;
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using System.Collections.Generic;
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using System.Collections.ObjectModel;
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using System.IO;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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using System.Windows;
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using System.Windows.Media;
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using System.Windows.Media.Imaging;
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using System.Windows.Shell;
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namespace SpineViewer.ViewModels
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{
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public class ExplorerListViewModel : ObservableObject
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{
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/// <summary>
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/// 预览图的保存质量
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/// </summary>
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public static int PreviewQuality { get; set; } = 80;
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/// <summary>
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/// 缩略图文件名格式字符串, 需要一个参数
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/// </summary>
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public static string PreviewFileNameFormat => ".{0}.preview.webp";
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private static readonly Logger _logger = LogManager.GetCurrentClassLogger();
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private readonly MainWindowViewModel _vmMain;
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/// <summary>
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/// 当前目录路径
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/// </summary>
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private string? _currentDirectory;
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/// <summary>
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/// 当前目录下文件项缓存
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/// </summary>
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private readonly List<ExplorerItemViewModel> _items = [];
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public ExplorerListViewModel(MainWindowViewModel vmMain)
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{
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_vmMain = vmMain;
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}
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/// <summary>
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/// 筛选字符串
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/// </summary>
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public string? FilterString
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{
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get => _filterString;
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set
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{
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if (!SetProperty(ref _filterString, value)) return;
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if (string.IsNullOrWhiteSpace(_filterString))
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{
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_shownItems = _items.ToList();
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}
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else
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{
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_shownItems = [];
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_shownItems.AddRange(_items.Where(it => it.FileName.Contains(_filterString)));
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}
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OnPropertyChanged(nameof(ShownItems));
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}
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}
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private string? _filterString;
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/// <summary>
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/// 当前目录下的所有子项文件, 含递归目录
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/// </summary>
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public List<ExplorerItemViewModel> ShownItems => _shownItems;
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private List<ExplorerItemViewModel> _shownItems = [];
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/// <summary>
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/// 选择项, 显示某一项的具体信息和预览图
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/// </summary>
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public ExplorerItemViewModel? SelectedItem => _selectedItem;
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private ExplorerItemViewModel? _selectedItem;
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/// <summary>
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/// 选择文件夹命令
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/// </summary>
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public RelayCommand Cmd_ChangeCurrentDirectory => _cmd_ChangeCurrentDirectory ??= new(() =>
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{
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if (OpenFolderService.OpenFolder(out var selectedPath))
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{
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_currentDirectory = selectedPath;
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RefreshItems();
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}
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});
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private RelayCommand? _cmd_ChangeCurrentDirectory;
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public RelayCommand Cmd_RefreshItems => _cmd_RefreshItems ??= new(RefreshItems);
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private RelayCommand? _cmd_RefreshItems;
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/// <summary>
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/// 选中项发生变化命令
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/// </summary>
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public RelayCommand<IList?> Cmd_SelectionChanged => _cmd_SelectionChanged ??= new(args =>
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{
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if (args is null || args.Count != 1)
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{
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SetProperty(ref _selectedItem, null, nameof(SelectedItem));
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}
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else
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{
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SetProperty(ref _selectedItem, args[0] as ExplorerItemViewModel, nameof(SelectedItem));
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}
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});
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private RelayCommand<IList?>? _cmd_SelectionChanged;
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/// <summary>
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/// 右键菜单, 添加到模型列表
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/// </summary>
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public RelayCommand<IList?> Cmd_AddSelectedItems => _cmd_AddSelectedItems ??= new(AddSelectedItems_Execute, args => args is not null && args.Count > 0);
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private RelayCommand<IList?>? _cmd_AddSelectedItems;
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private void AddSelectedItems_Execute(IList? args)
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{
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if (args is null || args.Count <= 0) return;
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_vmMain.SpineObjectListViewModel.AddSpineObjectFromFileList(args.Cast<ExplorerItemViewModel>().Select(m => m.FullPath).ToArray());
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}
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/// <summary>
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/// 对参数项生成预览图
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/// </summary>
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public RelayCommand<IList?> Cmd_GeneratePreviews => _cmd_GeneratePreviews ??= new(GeneratePreview_Execute, args => args is not null && args.Count > 0);
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private RelayCommand<IList?>? _cmd_GeneratePreviews;
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private void GeneratePreview_Execute(IList? args)
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{
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if (args is null || args.Count <= 0) return;
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if (args.Count <= 1)
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{
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var m = (ExplorerItemViewModel)args[0];
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try
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{
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using var sp = new SpineObject(m.FullPath);
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sp.Skeleton.GetBounds(out var x, out var y, out var w, out var h);
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var bounds = new SFML.Graphics.FloatRect(x, y, w, h).GetCanvasBounds(new(510, 510), 2);
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using var exporter = new FrameExporter(512, 512)
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{
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Center = bounds.Position + bounds.Size / 2,
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Size = new(bounds.Width, -bounds.Height),
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Format = SkiaSharp.SKEncodedImageFormat.Webp,
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Quality = PreviewQuality,
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};
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exporter.Export(m.PreviewFilePath, sp);
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}
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catch (Exception ex)
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{
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_logger.Trace(ex.ToString());
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_logger.Error("Failed to generate preview: {0}, {1}", m.PreviewFilePath, ex.Message);
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}
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_logger.LogCurrentProcessMemoryUsage();
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}
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else
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{
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ProgressService.RunAsync((pr, ct) => GeneratePreviewTask(
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args.Cast<ExplorerItemViewModel>().ToArray(), pr, ct),
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AppResource.Str_GeneratePreviewsTitle
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);
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}
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}
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private void GeneratePreviewTask(ExplorerItemViewModel[] models, IProgressReporter reporter, CancellationToken ct)
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{
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int totalCount = models.Length;
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int success = 0;
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int error = 0;
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_vmMain.ProgressState = TaskbarItemProgressState.Normal;
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_vmMain.ProgressValue = 0;
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reporter.Total = totalCount;
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reporter.Done = 0;
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reporter.ProgressText = $"[0/{totalCount}]";
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using var exporter = new FrameExporter(512, 512)
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{
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Format = SkiaSharp.SKEncodedImageFormat.Webp,
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Quality = PreviewQuality,
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};
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for (int i = 0; i < totalCount; i++)
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{
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if (ct.IsCancellationRequested) break;
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var m = models[i];
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reporter.ProgressText = $"[{i}/{totalCount}] {m.FullPath}";
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try
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{
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using var sp = new SpineObject(m.FullPath);
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sp.Skeleton.GetBounds(out var x, out var y, out var w, out var h);
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var bounds = new SFML.Graphics.FloatRect(x, y, w, h).GetCanvasBounds(new(510, 510), 2);
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exporter.Center = bounds.Position + bounds.Size / 2;
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exporter.Size = new(bounds.Width, -bounds.Height);
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exporter.Export(m.PreviewFilePath, sp);
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success++;
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}
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catch (Exception ex)
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{
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_logger.Trace(ex.ToString());
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_logger.Error("Failed to generate preview: {0}, {1}", m.PreviewFilePath, ex.Message);
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error++;
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}
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reporter.Done = i + 1;
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reporter.ProgressText = $"[{i + 1}/{totalCount}] {m}";
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_vmMain.ProgressValue = (i + 1f) / totalCount;
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}
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_vmMain.ProgressState = TaskbarItemProgressState.None;
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if (error > 0)
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_logger.Warn("Preview generation {0} successfully, {1} failed", success, error);
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else
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_logger.Info("{0} previews generated successfully", success);
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_logger.LogCurrentProcessMemoryUsage();
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}
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/// <summary>
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/// 删除参数项的预览图
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/// </summary>
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public RelayCommand<IList?> Cmd_DeletePreviews => _cmd_DeletePreviews ??= new(DeletePreview_Execute, args => args is not null && args.Count > 0);
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private RelayCommand<IList?>? _cmd_DeletePreviews;
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private void DeletePreview_Execute(IList? args)
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{
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if (args is null || args.Count <= 0) return;
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if (!MessagePopupService.Quest(string.Format(AppResource.Str_DeleteItemsQuest, args.Count))) return;
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if (args.Count <= 10)
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{
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foreach (var m in args.Cast<ExplorerItemViewModel>())
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{
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try
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{
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File.Delete(m.PreviewFilePath);
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}
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catch (Exception ex)
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{
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_logger.Trace(ex.ToString());
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_logger.Error("Failed to delete preview: {0}, {1}", m.PreviewFilePath, ex.Message);
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}
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}
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_logger.LogCurrentProcessMemoryUsage();
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}
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else
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{
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ProgressService.RunAsync((pr, ct) => DeletePreviewTask(
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args.Cast<ExplorerItemViewModel>().ToArray(), pr, ct),
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AppResource.Str_DeletePreviewsTitle
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);
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}
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}
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private void DeletePreviewTask(ExplorerItemViewModel[] models, IProgressReporter reporter, CancellationToken ct)
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{
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int totalCount = models.Length;
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int success = 0;
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int error = 0;
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_vmMain.ProgressState = TaskbarItemProgressState.Normal;
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_vmMain.ProgressValue = 0;
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reporter.Total = totalCount;
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reporter.Done = 0;
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reporter.ProgressText = $"[0/{totalCount}]";
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for (int i = 0; i < totalCount; i++)
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{
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if (ct.IsCancellationRequested) break;
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var m = models[i];
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reporter.ProgressText = $"[{i}/{totalCount}] {m.FullPath}";
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try
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{
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File.Delete(m.PreviewFilePath);
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success++;
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}
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catch (Exception ex)
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{
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_logger.Trace(ex.ToString());
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_logger.Error("Failed to delete preview: {0}, {1}", m.PreviewFilePath, ex.Message);
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error++;
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}
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reporter.Done = i + 1;
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reporter.ProgressText = $"[{i + 1}/{totalCount}] {m}";
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_vmMain.ProgressValue = (i + 1f) / totalCount;
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}
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_vmMain.ProgressState = TaskbarItemProgressState.None;
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if (error > 0)
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_logger.Warn("Preview deletion {0} successfully, {1} failed", success, error);
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else
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_logger.Info("{0} previews deleted successfully", success);
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_logger.LogCurrentProcessMemoryUsage();
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}
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/// <summary>
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/// 刷新显示, 可以更新文件夹项缓存
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/// </summary>
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public void RefreshItems()
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{
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_items.Clear();
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if (Directory.Exists(_currentDirectory))
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{
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try
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{
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foreach (var file in Directory.EnumerateFiles(_currentDirectory, "*.*", SearchOption.AllDirectories))
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{
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var lowerPath = file.ToLower();
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if (SpineObject.PossibleSuffixMapping.Keys.Any(lowerPath.EndsWith))
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_items.Add(new(file));
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}
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}
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catch (Exception ex)
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{
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_logger.Trace(ex.ToString());
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_logger.Error("Failed to enumerate files in dir: {0}, {1}", _currentDirectory, ex.Message);
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}
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}
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_shownItems = [];
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if (string.IsNullOrWhiteSpace(_filterString))
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{
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_shownItems = _items.ToList();
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}
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else
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{
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_shownItems = [];
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_shownItems.AddRange(_items.Where(it => it.FileName.Contains(_filterString)));
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}
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OnPropertyChanged(nameof(ShownItems));
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}
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}
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public class ExplorerItemViewModel : ObservableObject
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{
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private static readonly Logger _logger = LogManager.GetCurrentClassLogger();
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public ExplorerItemViewModel(string path)
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{
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FullPath = Path.GetFullPath(path);
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FileDirectory = Path.GetDirectoryName(FullPath) ?? "";
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FileName = Path.GetFileName(FullPath);
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PreviewFilePath = Path.Combine(FileDirectory, string.Format(ExplorerListViewModel.PreviewFileNameFormat, FileName));
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}
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/// <summary>
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/// 完整路径
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/// </summary
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public string FullPath { get; }
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/// <summary>
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/// 文件所处目录
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/// </summary>
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public string FileDirectory { get; }
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/// <summary>
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/// 文件名
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/// </summary>
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public string FileName { get; }
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/// <summary>
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/// 预览图路径
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/// </summary>
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public string PreviewFilePath { get; }
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/// <summary>
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/// 预览图
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/// </summary>
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public ImageSource? PreviewImage
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{
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get
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{
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try
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{
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return WpfExtension.LoadWebpWithAlpha(PreviewFilePath);
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}
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catch (FileNotFoundException)
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{
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return null;
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}
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catch (Exception ex)
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{
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_logger.Trace(ex.ToString());
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_logger.Warn("Failed to load preview image for {0}, {1}", FullPath, ex.Message);
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return null;
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}
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}
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}
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}
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}
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Block a user