更新至v0.10.1

.github/workflows/dotnet-desktop.yml

@@ -1,4 +1,4 @@
-name: Build and Release
+name: Build & Release
 
 on:
   push:

CHANGELOG.md

@@ -1,5 +1,10 @@
 # CHANGELOG
 
+## v0.10.1
+
+- <20><><EFBFBD><EFBFBD><EFBFBD>б<EFBFBD>Ԥ<EFBFBD><D4A4>ͼ
+- <20><><EFBFBD><EFBFBD><EFBFBD>б<EFBFBD>Ԥ<EFBFBD><D4A4>ͼ<EFBFBD><CDBC><EFBFBD><EFBFBD>
+
 ## v0.10.0
 
 - <20><><EFBFBD><EFBFBD><EFBFBD>˻<EFBFBD><CBBB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>б<EFBFBD><D0B1><EFBFBD>ѡ<EFBFBD><D1A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɾ<EFBFBD><C9BE><EFBFBD><EFBFBD>Ԥ<EFBFBD><D4A4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʾ<EFBFBD><CABE>Χ<EFBFBD><CEA7>ѡ<EFBFBD><D1A1>

README.en.md

@@ -1,4 +1,4 @@
-# SpineViewer
+# [SpineViewer](https://github.com/ww-rm/SpineViewer)
 
 [![Build and Release](https://github.com/ww-rm/SpineViewer/actions/workflows/dotnet-desktop.yml/badge.svg)](https://github.com/ww-rm/SpineViewer/actions/workflows/dotnet-desktop.yml)
 
@@ -6,7 +6,7 @@
 
 A simple and user-friendly Spine file viewer and exporter.
 
-![previewer](img/previewer.jpg)
+![previewer](img/preview.jpg)
 
 ---
 

README.md

@@ -1,4 +1,4 @@
-# SpineViewer
+# [SpineViewer](https://github.com/ww-rm/SpineViewer)
 
 [![Build and Release](https://github.com/ww-rm/SpineViewer/actions/workflows/dotnet-desktop.yml/badge.svg)](https://github.com/ww-rm/SpineViewer/actions/workflows/dotnet-desktop.yml)
 
@@ -6,7 +6,7 @@
 
 一个简单好用的 Spine 文件查看&导出程序.
 
-![previewer](img/previewer.jpg)
+![previewer](img/preview.jpg)
 
 ---
 
@@ -20,7 +20,7 @@
 
 ## 功能支持
 
-| 版本 | 查看&导出 | 转换 |
+| 版本 | 查看&导出 | 格式转换 |
 | :---: | :---: | :---: |
 | `2.1.x` | :white_check_mark: |  |
 | `3.1.x` |  |  |
@@ -28,7 +28,7 @@
 | `3.5.x` |  |  |
 | `3.6.x` | :white_check_mark: |  |
 | `3.7.x` | :white_check_mark: |  |
-| `3.8.x` | :white_check_mark: |  |
+| `3.8.x` | :white_check_mark: | :white_check_mark: |
 | `4.1.x` | :white_check_mark: |  |
 | `4.2.x` | :white_check_mark: |  |
 | `4.3.x` |  |  |
@@ -37,6 +37,7 @@
 - 支持每个骨骼独立参数设置
 - 支持动画PNG帧序列导出
 - 支持缩放旋转等导出画面设置
+- 支持对独立的骨骼文件进行格式转换
 - Coming soon...
 
 ## 使用方法

SpineViewer/Controls/SpineListView.Designer.cs

@@ -41,6 +41,13 @@
             toolStripSeparator2 = new ToolStripSeparator();
             toolStripMenuItem_BatchAdd = new ToolStripMenuItem();
             toolStripMenuItem_RemoveAll = new ToolStripMenuItem();
+            toolStripSeparator3 = new ToolStripSeparator();
+            toolStripMenuItem_ChangeView = new ToolStripMenuItem();
+            toolStripMenuItem_LargeIconView = new ToolStripMenuItem();
+            toolStripMenuItem_SmallIconView = new ToolStripMenuItem();
+            toolStripMenuItem_DetailsView = new ToolStripMenuItem();
+            imageList_LargeIcon = new ImageList(components);
+            imageList_SmallIcon = new ImageList(components);
             contextMenuStrip.SuspendLayout();
             SuspendLayout();
             // 
@@ -52,10 +59,12 @@
             listView.Dock = DockStyle.Fill;
             listView.FullRowSelect = true;
             listView.GridLines = true;
+            listView.LargeImageList = imageList_LargeIcon;
             listView.Location = new Point(0, 0);
             listView.Name = "listView";
             listView.ShowItemToolTips = true;
             listView.Size = new Size(336, 445);
+            listView.SmallImageList = imageList_SmallIcon;
             listView.TabIndex = 1;
             listView.UseCompatibleStateImageBehavior = false;
             listView.View = View.Details;
@@ -73,9 +82,9 @@
             // contextMenuStrip
             // 
             contextMenuStrip.ImageScalingSize = new Size(24, 24);
-            contextMenuStrip.Items.AddRange(new ToolStripItem[] { toolStripMenuItem_Add, toolStripMenuItem_Insert, toolStripMenuItem_Remove, toolStripSeparator1, toolStripMenuItem_MoveUp, toolStripMenuItem_MoveDown, toolStripSeparator2, toolStripMenuItem_BatchAdd, toolStripMenuItem_RemoveAll });
+            contextMenuStrip.Items.AddRange(new ToolStripItem[] { toolStripMenuItem_Add, toolStripMenuItem_Insert, toolStripMenuItem_Remove, toolStripSeparator1, toolStripMenuItem_MoveUp, toolStripMenuItem_MoveDown, toolStripSeparator2, toolStripMenuItem_BatchAdd, toolStripMenuItem_RemoveAll, toolStripSeparator3, toolStripMenuItem_ChangeView });
             contextMenuStrip.Name = "contextMenuStrip";
-            contextMenuStrip.Size = new Size(188, 226);
+            contextMenuStrip.Size = new Size(188, 262);
             contextMenuStrip.Opening += contextMenuStrip_Opening;
             // 
             // toolStripMenuItem_Add
@@ -140,6 +149,51 @@
             toolStripMenuItem_RemoveAll.Text = "移除全部(&X)";
             toolStripMenuItem_RemoveAll.Click += toolStripMenuItem_RemoveAll_Click;
             // 
+            // toolStripSeparator3
+            // 
+            toolStripSeparator3.Name = "toolStripSeparator3";
+            toolStripSeparator3.Size = new Size(184, 6);
+            // 
+            // toolStripMenuItem_ChangeView
+            // 
+            toolStripMenuItem_ChangeView.DropDownItems.AddRange(new ToolStripItem[] { toolStripMenuItem_LargeIconView, toolStripMenuItem_SmallIconView, toolStripMenuItem_DetailsView });
+            toolStripMenuItem_ChangeView.Name = "toolStripMenuItem_ChangeView";
+            toolStripMenuItem_ChangeView.Size = new Size(187, 30);
+            toolStripMenuItem_ChangeView.Text = "切换视图";
+            // 
+            // toolStripMenuItem_LargeIconView
+            // 
+            toolStripMenuItem_LargeIconView.Name = "toolStripMenuItem_LargeIconView";
+            toolStripMenuItem_LargeIconView.Size = new Size(164, 34);
+            toolStripMenuItem_LargeIconView.Text = "大图标";
+            toolStripMenuItem_LargeIconView.Click += toolStripMenuItem_LargeIconView_Click;
+            // 
+            // toolStripMenuItem_SmallIconView
+            // 
+            toolStripMenuItem_SmallIconView.Name = "toolStripMenuItem_SmallIconView";
+            toolStripMenuItem_SmallIconView.Size = new Size(164, 34);
+            toolStripMenuItem_SmallIconView.Text = "小图标";
+            toolStripMenuItem_SmallIconView.Click += toolStripMenuItem_SmallIconView_Click;
+            // 
+            // toolStripMenuItem_DetailsView
+            // 
+            toolStripMenuItem_DetailsView.Name = "toolStripMenuItem_DetailsView";
+            toolStripMenuItem_DetailsView.Size = new Size(164, 34);
+            toolStripMenuItem_DetailsView.Text = "列表";
+            toolStripMenuItem_DetailsView.Click += toolStripMenuItem_DetailsView_Click;
+            // 
+            // imageList_LargeIcon
+            // 
+            imageList_LargeIcon.ColorDepth = ColorDepth.Depth32Bit;
+            imageList_LargeIcon.ImageSize = new Size(96, 96);
+            imageList_LargeIcon.TransparentColor = Color.Transparent;
+            // 
+            // imageList_SmallIcon
+            // 
+            imageList_SmallIcon.ColorDepth = ColorDepth.Depth32Bit;
+            imageList_SmallIcon.ImageSize = new Size(48, 48);
+            imageList_SmallIcon.TransparentColor = Color.Transparent;
+            // 
             // SpineListView
             // 
             AutoScaleDimensions = new SizeF(11F, 24F);
@@ -164,5 +218,12 @@
         private ToolStripMenuItem toolStripMenuItem_MoveDown;
         private ToolStripSeparator toolStripSeparator2;
         private ColumnHeader columnHeader_Name;
+        private ImageList imageList_SmallIcon;
+        private ImageList imageList_LargeIcon;
+        private ToolStripSeparator toolStripSeparator3;
+        private ToolStripMenuItem toolStripMenuItem_ChangeView;
+        private ToolStripMenuItem toolStripMenuItem_LargeIconView;
+        private ToolStripMenuItem toolStripMenuItem_SmallIconView;
+        private ToolStripMenuItem toolStripMenuItem_DetailsView;
     }
 }

SpineViewer/Controls/SpineListView.cs

@@ -40,41 +40,6 @@ namespace SpineViewer.Controls
         /// </summary>
         public ListView.SelectedIndexCollection SelectedIndices { get => listView.SelectedIndices; }
 
-        /// <summary>
-        /// 弹出添加对话框在指定位置之前插入一项
-        /// </summary>
-        private void Insert(int index = -1)
-        {
-            var dialog = new Dialogs.OpenSpineDialog();
-            if (dialog.ShowDialog() != DialogResult.OK)
-                return;
-
-            try
-            {
-                var spine = Spine.Spine.New(dialog.Version, dialog.SkelPath, dialog.AtlasPath);
-
-                // 如果索引无效则在末尾添加
-                if (index < 0 || index > listView.Items.Count)
-                    index = listView.Items.Count;
-
-                // 锁定外部的读操作
-                lock (Spines) { spines.Insert(index, spine); }
-                listView.Items.Insert(index, new ListViewItem(spine.Name) { ToolTipText = spine.SkelPath });
-
-                // 选中新增项
-                listView.SelectedIndices.Clear();
-                listView.SelectedIndices.Add(index);
-            }
-            catch (Exception ex)
-            {
-                Program.Logger.Error(ex.ToString());
-                Program.Logger.Error("Failed to load {} {}", dialog.SkelPath, dialog.AtlasPath);
-                MessageBox.Show(ex.ToString(), "骨骼加载失败", MessageBoxButtons.OK, MessageBoxIcon.Error);
-            }
-
-            Program.Logger.Info($"Current memory usage: {Program.Process.WorkingSet64 / 1024.0 / 1024.0:F2} MB");
-        }
-
         /// <summary>
         /// 弹出添加对话框
         /// </summary>
@@ -98,55 +63,25 @@ namespace SpineViewer.Controls
             progressDialog.ShowDialog();
         }
 
-        private void BatchAdd_Work(object? sender, DoWorkEventArgs e)
+        public void ExportPreviews()
         {
-            var worker = sender as BackgroundWorker;
-            var arguments = e.Argument as Dialogs.BatchOpenSpineDialog;
-            var skelPaths = arguments.SkelPaths;
-            var version = arguments.Version;
-
-            int totalCount = skelPaths.Length;
-            int success = 0;
-            int error = 0;
-
-            worker.ReportProgress(0, $"已处理 0/{totalCount}");
-            for (int i = 0; i < totalCount; i++)
+            lock (Spines)
             {
-                if (worker.CancellationPending)
+                if (spines.Count <= 0)
                 {
-                    e.Cancel = true;
-                    break;
+                    MessageBox.Show("请至少打开一个骨骼文件", "提示信息", MessageBoxButtons.OK, MessageBoxIcon.Information);
+                    return;
                 }
-
-                var skelPath = skelPaths[i];
-
-                try
-                {
-                    var spine = Spine.Spine.New(version, skelPath);
-                    lock (Spines) { spines.Add(spine); }
-                    listView.Invoke(() => listView.Items.Add(new ListViewItem(spine.Name) { ToolTipText = spine.SkelPath }));
-                    success++;
-                }
-                catch (Exception ex)
-                {
-                    Program.Logger.Error(ex.ToString());
-                    Program.Logger.Error("Failed to load {}", skelPath);
-                    error++;
-                }
-
-                worker.ReportProgress((int)((i + 1) * 100.0) / totalCount, $"已处理 {i + 1}/{totalCount}");
             }
 
-            if (error > 0)
-            {
-                Program.Logger.Warn("Batch load {} successfully, {} failed", success, error);
-            }
-            else
-            {
-                Program.Logger.Info("{} skel loaded successfully", success);
-            }
+            var saveDialog = new Dialogs.ExportPreviewDialog();
+            if (saveDialog.ShowDialog() != DialogResult.OK)
+                return;
 
-            Program.Logger.Info($"Current memory usage: {Program.Process.WorkingSet64 / 1024.0 / 1024.0:F2} MB");
+            var progressDialog = new Dialogs.ProgressDialog();
+            progressDialog.DoWork += ExportPreview_Work;
+            progressDialog.RunWorkerAsync(saveDialog);
+            progressDialog.ShowDialog();
         }
 
         private void listView_SelectedIndexChanged(object sender, EventArgs e)
@@ -255,6 +190,11 @@ namespace SpineViewer.Controls
             toolStripMenuItem_MoveUp.Enabled = selectedCount == 1 && listView.SelectedIndices[0] != 0;
             toolStripMenuItem_MoveDown.Enabled = selectedCount == 1 && listView.SelectedIndices[0] != itemsCount - 1;
             toolStripMenuItem_RemoveAll.Enabled = itemsCount > 0;
+
+            // 视图选项
+            toolStripMenuItem_LargeIconView.Checked = listView.View == View.LargeIcon;
+            toolStripMenuItem_SmallIconView.Checked = listView.View == View.SmallIcon;
+            toolStripMenuItem_DetailsView.Checked = listView.View == View.Details;
         }
 
         private void toolStripMenuItem_Add_Click(object sender, EventArgs e)
@@ -288,8 +228,11 @@ namespace SpineViewer.Controls
             {
                 lock (Spines)
                 {
-                    spines[i].Dispose();
+                    var spine = spines[i];
                     spines.RemoveAt(i);
+                    listView.SmallImageList.Images.RemoveByKey(spine.ID);
+                    listView.LargeImageList.Images.RemoveByKey(spine.ID);
+                    spine.Dispose();
                 }
                 listView.Items.RemoveAt(i);
             }
@@ -333,15 +276,182 @@ namespace SpineViewer.Controls
             if (MessageBox.Show($"确认移除所有 {listView.Items.Count} 项吗？", "操作确认", MessageBoxButtons.OKCancel, MessageBoxIcon.Question) != DialogResult.OK)
                 return;
 
-            lock (Spines) 
+            lock (Spines)
             {
                 foreach (var spine in spines)
                     spine.Dispose();
-                spines.Clear(); 
+                spines.Clear();
+                listView.SmallImageList.Images.Clear();
+                listView.LargeImageList.Images.Clear();
             }
             listView.Items.Clear();
             if (PropertyGrid is not null)
                 PropertyGrid.SelectedObject = null;
         }
+
+        private void toolStripMenuItem_LargeIconView_Click(object sender, EventArgs e)
+        {
+            listView.View = View.LargeIcon;
+        }
+
+        private void toolStripMenuItem_SmallIconView_Click(object sender, EventArgs e)
+        {
+            listView.View = View.SmallIcon;
+        }
+
+        private void toolStripMenuItem_DetailsView_Click(object sender, EventArgs e)
+        {
+            listView.View = View.Details;
+        }
+
+        /// <summary>
+        /// 弹出添加对话框在指定位置之前插入一项
+        /// </summary>
+        private void Insert(int index = -1)
+        {
+            var dialog = new Dialogs.OpenSpineDialog();
+            if (dialog.ShowDialog() != DialogResult.OK)
+                return;
+
+            try
+            {
+                var spine = Spine.Spine.New(dialog.Version, dialog.SkelPath, dialog.AtlasPath);
+
+                // 如果索引无效则在末尾添加
+                if (index < 0 || index > listView.Items.Count)
+                    index = listView.Items.Count;
+
+                // 锁定外部的读操作
+                lock (Spines)
+                {
+                    spines.Insert(index, spine);
+                    listView.SmallImageList.Images.Add(spine.ID, spine.Preview);
+                    listView.LargeImageList.Images.Add(spine.ID, spine.Preview);
+                }
+                listView.Items.Insert(index, new ListViewItem(spine.Name, spine.ID) { ToolTipText = spine.SkelPath });
+
+                // 选中新增项
+                listView.SelectedIndices.Clear();
+                listView.SelectedIndices.Add(index);
+            }
+            catch (Exception ex)
+            {
+                Program.Logger.Error(ex.ToString());
+                Program.Logger.Error("Failed to load {} {}", dialog.SkelPath, dialog.AtlasPath);
+                MessageBox.Show(ex.ToString(), "骨骼加载失败", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+
+            Program.Logger.Info($"Current memory usage: {Program.Process.WorkingSet64 / 1024.0 / 1024.0:F2} MB");
+        }
+
+        private void BatchAdd_Work(object? sender, DoWorkEventArgs e)
+        {
+            var worker = sender as BackgroundWorker;
+            var arguments = e.Argument as Dialogs.BatchOpenSpineDialog;
+            var skelPaths = arguments.SkelPaths;
+            var version = arguments.Version;
+
+            int totalCount = skelPaths.Length;
+            int success = 0;
+            int error = 0;
+
+            worker.ReportProgress(0, $"已处理 0/{totalCount}");
+            for (int i = 0; i < totalCount; i++)
+            {
+                if (worker.CancellationPending)
+                {
+                    e.Cancel = true;
+                    break;
+                }
+
+                var skelPath = skelPaths[i];
+
+                try
+                {
+                    var spine = Spine.Spine.New(version, skelPath);
+                    var preview = spine.Preview;
+                    lock (Spines) { spines.Add(spine); }
+                    listView.Invoke(() =>
+                    {
+                        listView.SmallImageList.Images.Add(spine.ID, preview);
+                        listView.LargeImageList.Images.Add(spine.ID, preview);
+                        listView.Items.Add(new ListViewItem(spine.Name, spine.ID) { ToolTipText = spine.SkelPath });
+                    });
+                    success++;
+                }
+                catch (Exception ex)
+                {
+                    Program.Logger.Error(ex.ToString());
+                    Program.Logger.Error("Failed to load {}", skelPath);
+                    error++;
+                }
+
+                worker.ReportProgress((int)((i + 1) * 100.0) / totalCount, $"已处理 {i + 1}/{totalCount}");
+            }
+
+            if (error > 0)
+            {
+                Program.Logger.Warn("Batch load {} successfully, {} failed", success, error);
+            }
+            else
+            {
+                Program.Logger.Info("{} skel loaded successfully", success);
+            }
+
+            Program.Logger.Info($"Current memory usage: {Program.Process.WorkingSet64 / 1024.0 / 1024.0:F2} MB");
+        }
+
+        private void ExportPreview_Work(object? sender, DoWorkEventArgs e)
+        {
+            var worker = sender as BackgroundWorker;
+            var arguments = e.Argument as Dialogs.ExportPreviewDialog;
+            var outputDir = arguments.OutputDir;
+            var width = arguments.PreviewWidth;
+            var height = arguments.PreviewHeight;
+
+            int success = 0;
+            int error = 0;
+            lock (Spines)
+            {
+                int totalCount = spines.Count;
+                worker.ReportProgress(0, $"已处理 0/{totalCount}");
+                for (int i = 0; i < totalCount; i++)
+                {
+                    if (worker.CancellationPending)
+                    {
+                        e.Cancel = true;
+                        break;
+                    }
+
+                    var spine = spines[i];
+                    try
+                    {
+                        var preview = spine.GetPreview(width, height);
+                        var savePath = Path.Combine(outputDir, $"{spine.Name}.png");
+                        preview.SaveToFile(savePath);
+                        success++;
+                    }
+                    catch (Exception ex)
+                    {
+                        Program.Logger.Error(ex.ToString());
+                        Program.Logger.Error("Failed to save preview {}", spine.SkelPath);
+                        error++;
+                    }
+
+                    worker.ReportProgress((int)((i + 1) * 100.0) / totalCount, $"已处理 {i + 1}/{totalCount}");
+                }
+            }
+
+            if (error > 0)
+            {
+                Program.Logger.Warn("Preview save {} successfully, {} failed", success, error);
+            }
+            else
+            {
+                Program.Logger.Info("{} preview saved successfully", success);
+            }
+
+            Program.Logger.Info($"Current memory usage: {Program.Process.WorkingSet64 / 1024.0 / 1024.0:F2} MB");
+        }
     }
 }

SpineViewer/Controls/SpineListView.resx

@@ -120,4 +120,10 @@
   <metadata name="contextMenuStrip.TrayLocation" type="System.Drawing.Point, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
     <value>17, 17</value>
   </metadata>
+  <metadata name="imageList_LargeIcon.TrayLocation" type="System.Drawing.Point, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
+    <value>552, 29</value>
+  </metadata>
+  <metadata name="imageList_SmallIcon.TrayLocation" type="System.Drawing.Point, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
+    <value>267, 34</value>
+  </metadata>
 </root>

SpineViewer/Dialogs/ConvertFileFormatDialog.Designer.cs

@@ -37,7 +37,7 @@
             label1 = new Label();
             label4 = new Label();
             label3 = new Label();
-            comboBox_Version = new ComboBox();
+            comboBox_SourceVersion = new ComboBox();
             tableLayoutPanel2 = new TableLayoutPanel();
             button_Ok = new Button();
             button_Cancel = new Button();
@@ -75,7 +75,7 @@
             tableLayoutPanel1.Controls.Add(label1, 0, 4);
             tableLayoutPanel1.Controls.Add(label4, 0, 0);
             tableLayoutPanel1.Controls.Add(label3, 0, 3);
-            tableLayoutPanel1.Controls.Add(comboBox_Version, 1, 3);
+            tableLayoutPanel1.Controls.Add(comboBox_SourceVersion, 1, 3);
             tableLayoutPanel1.Controls.Add(tableLayoutPanel2, 0, 6);
             tableLayoutPanel1.Controls.Add(listBox_FilePath, 0, 2);
             tableLayoutPanel1.Controls.Add(button_SelectSkel, 0, 1);
@@ -166,14 +166,14 @@
             // 
             // comboBox_Version
             // 
-            comboBox_Version.Anchor = AnchorStyles.Left;
-            comboBox_Version.DropDownStyle = ComboBoxStyle.DropDownList;
-            comboBox_Version.FormattingEnabled = true;
-            comboBox_Version.Location = new Point(146, 303);
-            comboBox_Version.Name = "comboBox_Version";
-            comboBox_Version.Size = new Size(182, 32);
-            comboBox_Version.Sorted = true;
-            comboBox_Version.TabIndex = 13;
+            comboBox_SourceVersion.Anchor = AnchorStyles.Left;
+            comboBox_SourceVersion.DropDownStyle = ComboBoxStyle.DropDownList;
+            comboBox_SourceVersion.FormattingEnabled = true;
+            comboBox_SourceVersion.Location = new Point(146, 303);
+            comboBox_SourceVersion.Name = "comboBox_Version";
+            comboBox_SourceVersion.Size = new Size(182, 32);
+            comboBox_SourceVersion.Sorted = true;
+            comboBox_SourceVersion.TabIndex = 13;
             // 
             // tableLayoutPanel2
             // 
@@ -320,6 +320,7 @@
             ShowInTaskbar = false;
             StartPosition = FormStartPosition.CenterScreen;
             Text = "骨骼文件格式转换";
+            Load += ConvertFileFormatDialog_Load;
             panel.ResumeLayout(false);
             tableLayoutPanel1.ResumeLayout(false);
             tableLayoutPanel1.PerformLayout();
@@ -337,7 +338,7 @@
         private TableLayoutPanel tableLayoutPanel1;
         private Label label4;
         private Label label3;
-        private ComboBox comboBox_Version;
+        private ComboBox comboBox_SourceVersion;
         private TableLayoutPanel tableLayoutPanel2;
         private Button button_Ok;
         private Button button_Cancel;

SpineViewer/Dialogs/ConvertFileFormatDialog.cs

@@ -14,16 +14,27 @@ namespace SpineViewer.Dialogs
     public partial class ConvertFileFormatDialog : Form
     {
         public string[] SkelPaths { get; private set; }
-        public Spine.Version Version { get; private set; }
-        public bool ConvertToJson { get; private set; }
+        public Spine.Version SourceVersion { get; private set; }
+        public Spine.Version TargetVersion { get; private set; }
+        public bool JsonSource { get; private set; }
+        public bool JsonTarget { get; private set; }
 
         public ConvertFileFormatDialog()
         {
             InitializeComponent();
-            comboBox_Version.DataSource = VersionHelper.Versions.ToList();
-            comboBox_Version.DisplayMember = "Value";
-            comboBox_Version.ValueMember = "Key";
-            comboBox_Version.SelectedValue = Spine.Version.V38;
+            comboBox_SourceVersion.DataSource = VersionHelper.Versions.ToList();
+            comboBox_SourceVersion.DisplayMember = "Value";
+            comboBox_SourceVersion.ValueMember = "Key";
+            comboBox_SourceVersion.SelectedValue = Spine.Version.V38;
+            //comboBox_TargetVersion.DataSource = VersionHelper.Versions.ToList();
+            //comboBox_TargetVersion.DisplayMember = "Value";
+            //comboBox_TargetVersion.ValueMember = "Key";
+            //comboBox_TargetVersion.SelectedValue = Spine.Version.V38;
+        }
+
+        private void ConvertFileFormatDialog_Load(object sender, EventArgs e)
+        {
+            button_SelectSkel_Click(sender, e);
         }
 
         private void button_SelectSkel_Click(object sender, EventArgs e)
@@ -39,7 +50,10 @@ namespace SpineViewer.Dialogs
 
         private void button_Ok_Click(object sender, EventArgs e)
         {
-            var version = (Spine.Version)comboBox_Version.SelectedValue;
+            var sourceVersion = (Spine.Version)comboBox_SourceVersion.SelectedValue;
+            var targetVersion = (Spine.Version)comboBox_SourceVersion.SelectedValue;  // TODO: 增加目标版本
+            var jsonSource = radioButton_JsonSource.Checked;
+            var jsonTarget = radioButton_JsonTarget.Checked;
 
             if (listBox_FilePath.Items.Count <= 0)
             {
@@ -56,16 +70,29 @@ namespace SpineViewer.Dialogs
                 }
             }
 
-            if (!Spine.Spine.ImplementedVersions.Contains(version) ||
-                !SkeletonConverter.ImplementedVersions.Contains(version))
+            if (!SkeletonConverter.ImplementedVersions.Contains(sourceVersion))
             {
-                MessageBox.Show($"{version.String()} 版本尚未实现（咕咕咕~）", "错误信息", MessageBoxButtons.OK, MessageBoxIcon.Information);
+                MessageBox.Show($"{sourceVersion.String()} 版本尚未实现（咕咕咕~）", "错误信息", MessageBoxButtons.OK, MessageBoxIcon.Information);
+                return;
+            }
+
+            if (!SkeletonConverter.ImplementedVersions.Contains(targetVersion))
+            {
+                MessageBox.Show($"{targetVersion.String()} 版本尚未实现（咕咕咕~）", "错误信息", MessageBoxButtons.OK, MessageBoxIcon.Information);
+                return;
+            }
+
+            if (jsonSource == jsonTarget && sourceVersion == targetVersion)
+            {
+                MessageBox.Show($"不需要转换相同的格式和版本", "错误信息", MessageBoxButtons.OK, MessageBoxIcon.Information);
                 return;
             }
 
             SkelPaths = listBox_FilePath.Items.Cast<string>().ToArray();
-            Version = version;
-            ConvertToJson = radioButton_BinarySource.Checked;
+            SourceVersion = sourceVersion;
+            TargetVersion = targetVersion;
+            JsonSource = jsonSource;
+            JsonTarget = jsonTarget;
 
             DialogResult = DialogResult.OK;
         }

SpineViewer/Dialogs/ExportPngDialog.Designer.cs

@@ -239,6 +239,7 @@
             ShowInTaskbar = false;
             StartPosition = FormStartPosition.CenterScreen;
             Text = "导出PNG序列";
+            Load += ExportPngDialog_Load;
             panel1.ResumeLayout(false);
             panel1.PerformLayout();
             tableLayoutPanel1.ResumeLayout(false);

SpineViewer/Dialogs/ExportPngDialog.cs

@@ -21,6 +21,11 @@ namespace SpineViewer.Dialogs
             InitializeComponent();
         }
 
+        private void ExportPngDialog_Load(object sender, EventArgs e)
+        {
+            button_SelectOutputDir_Click(sender, e);
+        }
+
         private void button_SelectOutputDir_Click(object sender, EventArgs e)
         {
             folderBrowserDialog.InitialDirectory = textBox_OutputDir.Text;

SpineViewer/Dialogs/ExportPreviewDialog.Designer.cs

@@ -0,0 +1,270 @@
+namespace SpineViewer.Dialogs
+{
+    partial class ExportPreviewDialog
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            System.ComponentModel.ComponentResourceManager resources = new System.ComponentModel.ComponentResourceManager(typeof(ExportPreviewDialog));
+            panel1 = new Panel();
+            tableLayoutPanel1 = new TableLayoutPanel();
+            label4 = new Label();
+            label1 = new Label();
+            label2 = new Label();
+            label3 = new Label();
+            textBox_OutputDir = new TextBox();
+            button_SelectOutputDir = new Button();
+            tableLayoutPanel2 = new TableLayoutPanel();
+            button_Ok = new Button();
+            button_Cancel = new Button();
+            numericUpDown_Width = new NumericUpDown();
+            numericUpDown_Height = new NumericUpDown();
+            folderBrowserDialog = new FolderBrowserDialog();
+            panel1.SuspendLayout();
+            tableLayoutPanel1.SuspendLayout();
+            tableLayoutPanel2.SuspendLayout();
+            ((System.ComponentModel.ISupportInitialize)numericUpDown_Width).BeginInit();
+            ((System.ComponentModel.ISupportInitialize)numericUpDown_Height).BeginInit();
+            SuspendLayout();
+            // 
+            // panel1
+            // 
+            panel1.Controls.Add(tableLayoutPanel1);
+            panel1.Dock = DockStyle.Fill;
+            panel1.Location = new Point(0, 0);
+            panel1.Name = "panel1";
+            panel1.Padding = new Padding(50, 15, 50, 10);
+            panel1.Size = new Size(919, 276);
+            panel1.TabIndex = 2;
+            // 
+            // tableLayoutPanel1
+            // 
+            tableLayoutPanel1.AutoSize = true;
+            tableLayoutPanel1.ColumnCount = 4;
+            tableLayoutPanel1.ColumnStyles.Add(new ColumnStyle());
+            tableLayoutPanel1.ColumnStyles.Add(new ColumnStyle(SizeType.Percent, 50F));
+            tableLayoutPanel1.ColumnStyles.Add(new ColumnStyle(SizeType.Percent, 50F));
+            tableLayoutPanel1.ColumnStyles.Add(new ColumnStyle());
+            tableLayoutPanel1.Controls.Add(label4, 0, 0);
+            tableLayoutPanel1.Controls.Add(label1, 0, 1);
+            tableLayoutPanel1.Controls.Add(label2, 0, 2);
+            tableLayoutPanel1.Controls.Add(label3, 0, 3);
+            tableLayoutPanel1.Controls.Add(textBox_OutputDir, 1, 1);
+            tableLayoutPanel1.Controls.Add(button_SelectOutputDir, 3, 1);
+            tableLayoutPanel1.Controls.Add(tableLayoutPanel2, 0, 4);
+            tableLayoutPanel1.Controls.Add(numericUpDown_Width, 1, 2);
+            tableLayoutPanel1.Controls.Add(numericUpDown_Height, 1, 3);
+            tableLayoutPanel1.Dock = DockStyle.Fill;
+            tableLayoutPanel1.Location = new Point(50, 15);
+            tableLayoutPanel1.Name = "tableLayoutPanel1";
+            tableLayoutPanel1.RowCount = 5;
+            tableLayoutPanel1.RowStyles.Add(new RowStyle());
+            tableLayoutPanel1.RowStyles.Add(new RowStyle());
+            tableLayoutPanel1.RowStyles.Add(new RowStyle());
+            tableLayoutPanel1.RowStyles.Add(new RowStyle());
+            tableLayoutPanel1.RowStyles.Add(new RowStyle());
+            tableLayoutPanel1.Size = new Size(819, 251);
+            tableLayoutPanel1.TabIndex = 0;
+            // 
+            // label4
+            // 
+            label4.AutoSize = true;
+            tableLayoutPanel1.SetColumnSpan(label4, 4);
+            label4.Dock = DockStyle.Fill;
+            label4.Location = new Point(15, 15);
+            label4.Margin = new Padding(15);
+            label4.Name = "label4";
+            label4.Size = new Size(789, 24);
+            label4.TabIndex = 11;
+            label4.Text = "说明：导出的文件名与骨骼文件名相同";
+            label4.TextAlign = ContentAlignment.MiddleCenter;
+            // 
+            // label1
+            // 
+            label1.Anchor = AnchorStyles.Right;
+            label1.AutoSize = true;
+            label1.Location = new Point(3, 62);
+            label1.Name = "label1";
+            label1.Size = new Size(104, 24);
+            label1.TabIndex = 0;
+            label1.Text = "输出文件夹:";
+            // 
+            // label2
+            // 
+            label2.Anchor = AnchorStyles.Right;
+            label2.AutoSize = true;
+            label2.Location = new Point(75, 100);
+            label2.Name = "label2";
+            label2.Size = new Size(32, 24);
+            label2.TabIndex = 1;
+            label2.Text = "宽:";
+            // 
+            // label3
+            // 
+            label3.Anchor = AnchorStyles.Right;
+            label3.AutoSize = true;
+            label3.Location = new Point(75, 136);
+            label3.Name = "label3";
+            label3.Size = new Size(32, 24);
+            label3.TabIndex = 2;
+            label3.Text = "高:";
+            // 
+            // textBox_OutputDir
+            // 
+            tableLayoutPanel1.SetColumnSpan(textBox_OutputDir, 2);
+            textBox_OutputDir.Dock = DockStyle.Fill;
+            textBox_OutputDir.Location = new Point(113, 57);
+            textBox_OutputDir.Name = "textBox_OutputDir";
+            textBox_OutputDir.Size = new Size(664, 30);
+            textBox_OutputDir.TabIndex = 3;
+            // 
+            // button_SelectOutputDir
+            // 
+            button_SelectOutputDir.AutoSize = true;
+            button_SelectOutputDir.AutoSizeMode = AutoSizeMode.GrowAndShrink;
+            button_SelectOutputDir.Location = new Point(783, 57);
+            button_SelectOutputDir.Name = "button_SelectOutputDir";
+            button_SelectOutputDir.Size = new Size(32, 34);
+            button_SelectOutputDir.TabIndex = 5;
+            button_SelectOutputDir.Text = "...";
+            button_SelectOutputDir.UseVisualStyleBackColor = true;
+            button_SelectOutputDir.Click += button_SelectOutputDir_Click;
+            // 
+            // tableLayoutPanel2
+            // 
+            tableLayoutPanel2.AutoSize = true;
+            tableLayoutPanel2.AutoSizeMode = AutoSizeMode.GrowAndShrink;
+            tableLayoutPanel2.ColumnCount = 2;
+            tableLayoutPanel1.SetColumnSpan(tableLayoutPanel2, 4);
+            tableLayoutPanel2.ColumnStyles.Add(new ColumnStyle(SizeType.Percent, 50F));
+            tableLayoutPanel2.ColumnStyles.Add(new ColumnStyle(SizeType.Percent, 50F));
+            tableLayoutPanel2.Controls.Add(button_Ok, 0, 0);
+            tableLayoutPanel2.Controls.Add(button_Cancel, 1, 0);
+            tableLayoutPanel2.Dock = DockStyle.Bottom;
+            tableLayoutPanel2.Location = new Point(3, 208);
+            tableLayoutPanel2.Name = "tableLayoutPanel2";
+            tableLayoutPanel2.RowCount = 1;
+            tableLayoutPanel2.RowStyles.Add(new RowStyle());
+            tableLayoutPanel2.Size = new Size(813, 40);
+            tableLayoutPanel2.TabIndex = 10;
+            // 
+            // button_Ok
+            // 
+            button_Ok.Anchor = AnchorStyles.Bottom | AnchorStyles.Right;
+            button_Ok.Location = new Point(264, 3);
+            button_Ok.Margin = new Padding(3, 3, 30, 3);
+            button_Ok.Name = "button_Ok";
+            button_Ok.Size = new Size(112, 34);
+            button_Ok.TabIndex = 7;
+            button_Ok.Text = "确认";
+            button_Ok.UseVisualStyleBackColor = true;
+            button_Ok.Click += button_Ok_Click;
+            // 
+            // button_Cancel
+            // 
+            button_Cancel.Anchor = AnchorStyles.Bottom | AnchorStyles.Left;
+            button_Cancel.Location = new Point(436, 3);
+            button_Cancel.Margin = new Padding(30, 3, 3, 3);
+            button_Cancel.Name = "button_Cancel";
+            button_Cancel.Size = new Size(112, 34);
+            button_Cancel.TabIndex = 8;
+            button_Cancel.Text = "取消";
+            button_Cancel.UseVisualStyleBackColor = true;
+            button_Cancel.Click += button_Cancel_Click;
+            // 
+            // numericUpDown_Width
+            // 
+            numericUpDown_Width.Anchor = AnchorStyles.Left;
+            numericUpDown_Width.Location = new Point(113, 97);
+            numericUpDown_Width.Maximum = new decimal(new int[] { 4096, 0, 0, 0 });
+            numericUpDown_Width.Minimum = new decimal(new int[] { 32, 0, 0, 0 });
+            numericUpDown_Width.Name = "numericUpDown_Width";
+            numericUpDown_Width.Size = new Size(180, 30);
+            numericUpDown_Width.TabIndex = 12;
+            numericUpDown_Width.TextAlign = HorizontalAlignment.Right;
+            numericUpDown_Width.Value = new decimal(new int[] { 256, 0, 0, 0 });
+            // 
+            // numericUpDown_Height
+            // 
+            numericUpDown_Height.Anchor = AnchorStyles.Left;
+            numericUpDown_Height.Location = new Point(113, 133);
+            numericUpDown_Height.Maximum = new decimal(new int[] { 4096, 0, 0, 0 });
+            numericUpDown_Height.Minimum = new decimal(new int[] { 32, 0, 0, 0 });
+            numericUpDown_Height.Name = "numericUpDown_Height";
+            numericUpDown_Height.Size = new Size(180, 30);
+            numericUpDown_Height.TabIndex = 13;
+            numericUpDown_Height.TextAlign = HorizontalAlignment.Right;
+            numericUpDown_Height.Value = new decimal(new int[] { 256, 0, 0, 0 });
+            // 
+            // folderBrowserDialog
+            // 
+            folderBrowserDialog.AddToRecent = false;
+            // 
+            // ExportPreviewDialog
+            // 
+            AcceptButton = button_Ok;
+            AutoScaleDimensions = new SizeF(11F, 24F);
+            AutoScaleMode = AutoScaleMode.Font;
+            CancelButton = button_Cancel;
+            ClientSize = new Size(919, 276);
+            Controls.Add(panel1);
+            FormBorderStyle = FormBorderStyle.FixedDialog;
+            Icon = (Icon)resources.GetObject("$this.Icon");
+            MaximizeBox = false;
+            MinimizeBox = false;
+            Name = "ExportPreviewDialog";
+            ShowInTaskbar = false;
+            StartPosition = FormStartPosition.CenterScreen;
+            Text = "导出预览图";
+            Load += ExportPreviewDialog_Load;
+            panel1.ResumeLayout(false);
+            panel1.PerformLayout();
+            tableLayoutPanel1.ResumeLayout(false);
+            tableLayoutPanel1.PerformLayout();
+            tableLayoutPanel2.ResumeLayout(false);
+            ((System.ComponentModel.ISupportInitialize)numericUpDown_Width).EndInit();
+            ((System.ComponentModel.ISupportInitialize)numericUpDown_Height).EndInit();
+            ResumeLayout(false);
+        }
+
+        #endregion
+
+        private Panel panel1;
+        private TableLayoutPanel tableLayoutPanel1;
+        private Label label4;
+        private Label label1;
+        private Label label2;
+        private Label label3;
+        private TextBox textBox_OutputDir;
+        private Button button_SelectOutputDir;
+        private TableLayoutPanel tableLayoutPanel2;
+        private Button button_Ok;
+        private Button button_Cancel;
+        private NumericUpDown numericUpDown_Width;
+        private NumericUpDown numericUpDown_Height;
+        private FolderBrowserDialog folderBrowserDialog;
+    }
+}

SpineViewer/Dialogs/ExportPreviewDialog.cs

@@ -0,0 +1,80 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace SpineViewer.Dialogs
+{
+    public partial class ExportPreviewDialog: Form
+    {
+        public string OutputDir { get; private set; }
+        public uint PreviewWidth { get; private set; }
+        public uint PreviewHeight { get; private set; }
+
+        public ExportPreviewDialog()
+        {
+            InitializeComponent();
+        }
+
+        private void ExportPreviewDialog_Load(object sender, EventArgs e)
+        {
+            button_SelectOutputDir_Click(sender, e);
+        }
+
+        private void button_SelectOutputDir_Click(object sender, EventArgs e)
+        {
+            folderBrowserDialog.InitialDirectory = textBox_OutputDir.Text;
+            if (folderBrowserDialog.ShowDialog() == DialogResult.OK)
+            {
+                textBox_OutputDir.Text = Path.GetFullPath(folderBrowserDialog.SelectedPath);
+            }
+        }
+
+        private void button_Ok_Click(object sender, EventArgs e)
+        {
+            var outputDir = textBox_OutputDir.Text;
+            if (File.Exists(outputDir))
+            {
+                MessageBox.Show("输出文件夹无效", "错误信息", MessageBoxButtons.OK, MessageBoxIcon.Information);
+                return;
+            }
+
+            if (!Directory.Exists(outputDir))
+            {
+                if (MessageBox.Show($"文件夹 {outputDir} 不存在，是否创建？", "操作确认", MessageBoxButtons.OKCancel, MessageBoxIcon.Question) == DialogResult.OK)
+                {
+                    try
+                    {
+                        Directory.CreateDirectory(outputDir);
+                    }
+                    catch (Exception ex)
+                    {
+                        Program.Logger.Error(ex.ToString());
+                        MessageBox.Show(ex.ToString(), "文件夹创建失败", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                        return;
+                    }
+                }
+                else
+                {
+                    return;
+                }
+            }
+
+            OutputDir = Path.GetFullPath(outputDir);
+            PreviewWidth = (uint)numericUpDown_Width.Value;
+            PreviewHeight = (uint)numericUpDown_Height.Value;
+
+            DialogResult = DialogResult.OK;
+        }
+
+        private void button_Cancel_Click(object sender, EventArgs e)
+        {
+            DialogResult = DialogResult.Cancel;
+        }
+    }
+}

SpineViewer/MainForm.Designer.cs

@@ -36,6 +36,7 @@
             toolStripMenuItem_BatchOpen = new ToolStripMenuItem();
             toolStripSeparator1 = new ToolStripSeparator();
             toolStripMenuItem_Export = new ToolStripMenuItem();
+            toolStripMenuItem_ExportPreview = new ToolStripMenuItem();
             toolStripSeparator2 = new ToolStripSeparator();
             toolStripMenuItem_Exit = new ToolStripMenuItem();
             toolStripMenuItem_Function = new ToolStripMenuItem();
@@ -100,7 +101,7 @@
             // 
             // toolStripMenuItem_File
             // 
-            toolStripMenuItem_File.DropDownItems.AddRange(new ToolStripItem[] { toolStripMenuItem_Open, toolStripMenuItem_BatchOpen, toolStripSeparator1, toolStripMenuItem_Export, toolStripSeparator2, toolStripMenuItem_Exit });
+            toolStripMenuItem_File.DropDownItems.AddRange(new ToolStripItem[] { toolStripMenuItem_Open, toolStripMenuItem_BatchOpen, toolStripSeparator1, toolStripMenuItem_Export, toolStripMenuItem_ExportPreview, toolStripSeparator2, toolStripMenuItem_Exit });
             toolStripMenuItem_File.Name = "toolStripMenuItem_File";
             toolStripMenuItem_File.Size = new Size(84, 28);
             toolStripMenuItem_File.Text = "文件(&F)";
@@ -133,6 +134,13 @@
             toolStripMenuItem_Export.Text = "导出(&E)...";
             toolStripMenuItem_Export.Click += toolStripMenuItem_Export_Click;
             // 
+            // toolStripMenuItem_ExportPreview
+            // 
+            toolStripMenuItem_ExportPreview.Name = "toolStripMenuItem_ExportPreview";
+            toolStripMenuItem_ExportPreview.Size = new Size(254, 34);
+            toolStripMenuItem_ExportPreview.Text = "导出预览图(&P)...";
+            toolStripMenuItem_ExportPreview.Click += toolStripMenuItem_ExportPreview_Click;
+            // 
             // toolStripSeparator2
             // 
             toolStripSeparator2.Name = "toolStripSeparator2";
@@ -170,7 +178,7 @@
             // toolStripMenuItem_ConvertFileFormat
             // 
             toolStripMenuItem_ConvertFileFormat.Name = "toolStripMenuItem_ConvertFileFormat";
-            toolStripMenuItem_ConvertFileFormat.Size = new Size(270, 34);
+            toolStripMenuItem_ConvertFileFormat.Size = new Size(254, 34);
             toolStripMenuItem_ConvertFileFormat.Text = "转换文件格式(&C)...";
             toolStripMenuItem_ConvertFileFormat.Click += toolStripMenuItem_ConvertFileFormat_Click;
             // 
@@ -186,6 +194,7 @@
             toolStripMenuItem_ManageResource.Name = "toolStripMenuItem_ManageResource";
             toolStripMenuItem_ManageResource.Size = new Size(260, 34);
             toolStripMenuItem_ManageResource.Text = "管理下载资源(&M)...";
+            toolStripMenuItem_ManageResource.Click += toolStripMenuItem_ManageResource_Click;
             // 
             // toolStripMenuItem_Help
             // 
@@ -292,7 +301,7 @@
             splitContainer_Information.Panel2.Controls.Add(splitContainer_Config);
             splitContainer_Information.Panel2.Cursor = Cursors.Default;
             splitContainer_Information.Size = new Size(744, 848);
-            splitContainer_Information.SplitterDistance = 327;
+            splitContainer_Information.SplitterDistance = 398;
             splitContainer_Information.TabIndex = 1;
             splitContainer_Information.TabStop = false;
             splitContainer_Information.SplitterMoved += splitContainer_SplitterMoved;
@@ -304,7 +313,7 @@
             groupBox_SkelList.Dock = DockStyle.Fill;
             groupBox_SkelList.Location = new Point(0, 0);
             groupBox_SkelList.Name = "groupBox_SkelList";
-            groupBox_SkelList.Size = new Size(327, 848);
+            groupBox_SkelList.Size = new Size(398, 848);
             groupBox_SkelList.TabIndex = 0;
             groupBox_SkelList.TabStop = false;
             groupBox_SkelList.Text = "模型列表";
@@ -315,7 +324,7 @@
             spineListView.Location = new Point(3, 26);
             spineListView.Name = "spineListView";
             spineListView.PropertyGrid = propertyGrid_Spine;
-            spineListView.Size = new Size(321, 819);
+            spineListView.Size = new Size(392, 819);
             spineListView.TabIndex = 0;
             // 
             // propertyGrid_Spine
@@ -324,7 +333,7 @@
             propertyGrid_Spine.HelpVisible = false;
             propertyGrid_Spine.Location = new Point(3, 26);
             propertyGrid_Spine.Name = "propertyGrid_Spine";
-            propertyGrid_Spine.Size = new Size(407, 470);
+            propertyGrid_Spine.Size = new Size(336, 470);
             propertyGrid_Spine.TabIndex = 0;
             propertyGrid_Spine.ToolbarVisible = false;
             propertyGrid_Spine.PropertyValueChanged += propertyGrid_PropertyValueChanged;
@@ -346,7 +355,7 @@
             // 
             splitContainer_Config.Panel2.Controls.Add(groupBox_PreviewConfig);
             splitContainer_Config.Panel2.Cursor = Cursors.Default;
-            splitContainer_Config.Size = new Size(413, 848);
+            splitContainer_Config.Size = new Size(342, 848);
             splitContainer_Config.SplitterDistance = 499;
             splitContainer_Config.TabIndex = 0;
             splitContainer_Config.TabStop = false;
@@ -359,7 +368,7 @@
             groupBox_SkelConfig.Dock = DockStyle.Fill;
             groupBox_SkelConfig.Location = new Point(0, 0);
             groupBox_SkelConfig.Name = "groupBox_SkelConfig";
-            groupBox_SkelConfig.Size = new Size(413, 499);
+            groupBox_SkelConfig.Size = new Size(342, 499);
             groupBox_SkelConfig.TabIndex = 0;
             groupBox_SkelConfig.TabStop = false;
             groupBox_SkelConfig.Text = "模型参数";
@@ -370,7 +379,7 @@
             groupBox_PreviewConfig.Dock = DockStyle.Fill;
             groupBox_PreviewConfig.Location = new Point(0, 0);
             groupBox_PreviewConfig.Name = "groupBox_PreviewConfig";
-            groupBox_PreviewConfig.Size = new Size(413, 345);
+            groupBox_PreviewConfig.Size = new Size(342, 345);
             groupBox_PreviewConfig.TabIndex = 1;
             groupBox_PreviewConfig.TabStop = false;
             groupBox_PreviewConfig.Text = "画面参数";
@@ -381,7 +390,7 @@
             propertyGrid_Previewer.HelpVisible = false;
             propertyGrid_Previewer.Location = new Point(3, 26);
             propertyGrid_Previewer.Name = "propertyGrid_Previewer";
-            propertyGrid_Previewer.Size = new Size(407, 316);
+            propertyGrid_Previewer.Size = new Size(336, 316);
             propertyGrid_Previewer.TabIndex = 1;
             propertyGrid_Previewer.ToolbarVisible = false;
             propertyGrid_Previewer.PropertyValueChanged += propertyGrid_PropertyValueChanged;
@@ -500,5 +509,6 @@
         private ToolStripMenuItem toolStripMenuItem_ManageResource;
         private ToolStripMenuItem toolStripMenuItem_Tool;
         private ToolStripMenuItem toolStripMenuItem_ConvertFileFormat;
+        private ToolStripMenuItem toolStripMenuItem_ExportPreview;
     }
 }

SpineViewer/MainForm.cs

@@ -2,6 +2,8 @@
 using SpineViewer.Spine;
 using System.ComponentModel;
 using System.Diagnostics;
+using System.Text.Json;
+using System.Text.Json.Nodes;
 
 namespace SpineViewer
 {
@@ -41,6 +43,101 @@ namespace SpineViewer
             LogManager.ReconfigExistingLoggers();
         }
 
+        private void MainForm_Load(object sender, EventArgs e)
+        {
+            spinePreviewer.StartPreview();
+        }
+
+        private void MainForm_FormClosing(object sender, FormClosingEventArgs e)
+        {
+            spinePreviewer.StopPreview();
+        }
+
+        private void toolStripMenuItem_Open_Click(object sender, EventArgs e)
+        {
+            spineListView.Add();
+        }
+
+        private void toolStripMenuItem_BatchOpen_Click(object sender, EventArgs e)
+        {
+            spineListView.BatchAdd();
+        }
+
+        private void toolStripMenuItem_Export_Click(object sender, EventArgs e)
+        {
+            lock (spineListView.Spines)
+            {
+                if (spineListView.Spines.Count <= 0)
+                {
+                    MessageBox.Show("请至少打开一个骨骼文件", "提示信息", MessageBoxButtons.OK, MessageBoxIcon.Information);
+                    return;
+                }
+            }
+
+            var exportDialog = new Dialogs.ExportPngDialog();
+            if (exportDialog.ShowDialog() != DialogResult.OK)
+                return;
+
+            var progressDialog = new Dialogs.ProgressDialog();
+            progressDialog.DoWork += ExportPng_Work;
+            progressDialog.RunWorkerAsync(exportDialog);
+            progressDialog.ShowDialog();
+        }
+
+        private void toolStripMenuItem_ExportPreview_Click(object sender, EventArgs e)
+        {
+            spineListView.ExportPreviews();
+        }
+
+        private void toolStripMenuItem_Exit_Click(object sender, EventArgs e)
+        {
+            Close();
+        }
+
+        private void toolStripMenuItem_ResetAnimation_Click(object sender, EventArgs e)
+        {
+            lock (spineListView.Spines)
+            {
+                foreach (var spine in spineListView.Spines)
+                    spine.CurrentAnimation = spine.CurrentAnimation;
+            }
+        }
+
+        private void toolStripMenuItem_ConvertFileFormat_Click(object sender, EventArgs e)
+        {
+            var openDialog = new Dialogs.ConvertFileFormatDialog();
+            if (openDialog.ShowDialog() != DialogResult.OK)
+                return;
+
+            var progressDialog = new Dialogs.ProgressDialog();
+            progressDialog.DoWork += ConvertFileFormat_Work;
+            progressDialog.RunWorkerAsync(openDialog);
+            progressDialog.ShowDialog();
+        }
+
+        private void toolStripMenuItem_ManageResource_Click(object sender, EventArgs e)
+        {
+            
+        }
+
+        private void toolStripMenuItem_About_Click(object sender, EventArgs e)
+        {
+            (new Dialogs.AboutDialog()).ShowDialog();
+        }
+
+        private void toolStripMenuItem_Diagnostics_Click(object sender, EventArgs e)
+        {
+            (new Dialogs.DiagnosticsDialog()).ShowDialog();
+        }
+
+        private void splitContainer_SplitterMoved(object sender, SplitterEventArgs e) { ActiveControl = null; }
+
+        private void splitContainer_MouseUp(object sender, MouseEventArgs e) { ActiveControl = null; }
+
+        private void propertyGrid_PropertyValueChanged(object sender, PropertyValueChangedEventArgs e) { (sender as PropertyGrid)?.Refresh(); }
+
+        private void spinePreviewer_MouseUp(object sender, MouseEventArgs e) { propertyGrid_Spine.Refresh(); }
+
         private void ExportPng_Work(object? sender, DoWorkEventArgs e)
         {
             var worker = sender as BackgroundWorker;
@@ -103,87 +200,31 @@ namespace SpineViewer
             spinePreviewer.StartPreview();
         }
 
-        private void MainForm_Load(object sender, EventArgs e)
-        {
-            spinePreviewer.StartPreview();
-        }
-
-        private void MainForm_FormClosing(object sender, FormClosingEventArgs e)
-        {
-            spinePreviewer.StopPreview();
-        }
-
-        private void toolStripMenuItem_Open_Click(object sender, EventArgs e)
-        {
-            spineListView.Add();
-        }
-
-        private void toolStripMenuItem_BatchOpen_Click(object sender, EventArgs e)
-        {
-            spineListView.BatchAdd();
-        }
-
-        private void toolStripMenuItem_Export_Click(object sender, EventArgs e)
-        {
-            lock (spineListView.Spines)
-            {
-                if (spineListView.Spines.Count <= 0)
-                {
-                    MessageBox.Show("请至少打开一个骨骼文件", "提示信息", MessageBoxButtons.OK, MessageBoxIcon.Information);
-                    return;
-                }
-            }
-
-            var exportDialog = new Dialogs.ExportPngDialog();
-            if (exportDialog.ShowDialog() != DialogResult.OK)
-                return;
-
-            var progressDialog = new Dialogs.ProgressDialog();
-            progressDialog.DoWork += ExportPng_Work;
-            progressDialog.RunWorkerAsync(exportDialog);
-            progressDialog.ShowDialog();
-        }
-
-        private void toolStripMenuItem_Exit_Click(object sender, EventArgs e)
-        {
-            Close();
-        }
-
-        private void toolStripMenuItem_ResetAnimation_Click(object sender, EventArgs e)
-        {
-            lock (spineListView.Spines)
-            {
-                foreach (var spine in spineListView.Spines)
-                    spine.CurrentAnimation = spine.CurrentAnimation;
-            }
-        }
-
-        private void toolStripMenuItem_ConvertFileFormat_Click(object sender, EventArgs e)
-        {
-            var openDialog = new Dialogs.ConvertFileFormatDialog();
-            if (openDialog.ShowDialog() != DialogResult.OK)
-                return;
-
-            var progressDialog = new Dialogs.ProgressDialog();
-            progressDialog.DoWork += ConvertFileFormat_Work;
-            progressDialog.RunWorkerAsync(openDialog);
-            progressDialog.ShowDialog();
-        }
-
         private void ConvertFileFormat_Work(object? sender, DoWorkEventArgs e)
         {
             var worker = sender as BackgroundWorker;
             var arguments = e.Argument as Dialogs.ConvertFileFormatDialog;
             var skelPaths = arguments.SkelPaths;
-            var version = arguments.Version;
-            var convertToJson = arguments.ConvertToJson;
-            var newSuffix = convertToJson ? ".json" : ".skel";
+            var srcVersion = arguments.SourceVersion;
+            var tgtVersion = arguments.TargetVersion;
+            var jsonSource = arguments.JsonSource;
+            var jsonTarget = arguments.JsonTarget;
+            var newSuffix = jsonTarget ? ".json" : ".skel";
+
+            if (jsonTarget == jsonSource)
+            {
+                if (tgtVersion == srcVersion)
+                    return;
+                else
+                    newSuffix += $".{tgtVersion.ToString().ToLower()}"; // TODO: 仅转换版本的情况下考虑文件覆盖问题
+            }
 
             int totalCount = skelPaths.Length;
             int success = 0;
             int error = 0;
 
-            SkeletonConverter cvter = SkeletonConverter.New(version);
+            SkeletonConverter srcCvter = SkeletonConverter.New(srcVersion);
+            SkeletonConverter tgtCvter = tgtVersion == srcVersion ? srcCvter : SkeletonConverter.New(tgtVersion);
 
             worker.ReportProgress(0, $"已处理 0/{totalCount}");
             for (int i = 0; i < totalCount; i++)
@@ -199,10 +240,9 @@ namespace SpineViewer
 
                 try
                 {
-                    if (convertToJson)
-                        cvter.BinaryToJson(skelPath, newPath);
-                    else
-                        cvter.JsonToBinary(skelPath, newPath);
+                    var root = jsonSource ? srcCvter.ReadJson(skelPath) : srcCvter.ReadBinary(skelPath);
+                    if (tgtVersion != srcVersion) root = srcCvter.ToVersion(root, tgtVersion);
+                    if (jsonTarget) tgtCvter.WriteJson(root, newPath); else tgtCvter.WriteBinary(root, newPath);
                     success++;
                 }
                 catch (Exception ex)
@@ -224,24 +264,5 @@ namespace SpineViewer
                 Program.Logger.Info("{} skel converted successfully", success);
             }
         }
-
-        private void toolStripMenuItem_About_Click(object sender, EventArgs e)
-        {
-            (new Dialogs.AboutDialog()).ShowDialog();
-        }
-
-        private void toolStripMenuItem_Diagnostics_Click(object sender, EventArgs e)
-        {
-            (new Dialogs.DiagnosticsDialog()).ShowDialog();
-        }
-
-        private void splitContainer_SplitterMoved(object sender, SplitterEventArgs e) { ActiveControl = null; }
-
-        private void splitContainer_MouseUp(object sender, MouseEventArgs e) { ActiveControl = null; }
-
-        private void propertyGrid_PropertyValueChanged(object sender, PropertyValueChangedEventArgs e) { (sender as PropertyGrid)?.Refresh(); }
-
-        private void spinePreviewer_MouseUp(object sender, MouseEventArgs e) { propertyGrid_Spine.Refresh(); }
-
     }
 }

SpineViewer/Spine/Implementations/SkeletonConverter/SkeletonConverter38.cs

@@ -7,6 +7,7 @@ using SpineRuntime38;
 using System.Text.Json;
 using System.Text.Json.Nodes;
 using SpineRuntime38.Attachments;
+using System.Globalization;
 
 namespace SpineViewer.Spine.Implementations.SkeletonConverter
 {
@@ -15,35 +16,38 @@ namespace SpineViewer.Spine.Implementations.SkeletonConverter
     {
         private SkeletonReader reader = null;
         private JsonObject root = null;
-
         private bool nonessential = false;
-        private List<JsonObject> idx2Event = [];
 
-        protected override JsonObject ReadBinary(string binPath)
+        private readonly List<JsonObject> idx2event = [];
+
+        public override JsonObject ReadBinary(string binPath)
         {
+            var root = new JsonObject();
             using var input = File.OpenRead(binPath);
+
+            this.root = root;
             reader = new(input);
 
-            var result = root = [];
-            root["skeleton"] = ReadSkeleton();
+            ReadSkeleton();
             ReadStrings();
-            root["bones"] = ReadBones();
-            root["slots"] = ReadSlots();
-            root["ik"] = ReadIK();
-            root["transform"] = ReadTransform();
-            root["path"] = ReadPath();
-            root["skins"] = ReadSkins();
-            root["events"] = ReadEvents();
-            root["animations"] = ReadAnimations();
+            ReadBones();
+            ReadSlots();
+            ReadIK();
+            ReadTransform();
+            ReadPath();
+            ReadSkins();
+            ReadEvents();
+            ReadAnimations();
 
             reader = null;
-            nonessential = false;
-            root = null;
+            this.root = null;
 
-            return result;
+            idx2event.Clear();
+
+            return root;
         }
 
-        private JsonObject ReadSkeleton()
+        private void ReadSkeleton()
         {
             JsonObject skeleton = [];
             skeleton["hash"] = reader.ReadString();
@@ -59,7 +63,7 @@ namespace SpineViewer.Spine.Implementations.SkeletonConverter
                 skeleton["images"] = reader.ReadString();
                 skeleton["audio"] = reader.ReadString();
             }
-            return skeleton;
+            root["skeleton"] = skeleton;
         }
 
         private void ReadStrings()
@@ -68,14 +72,14 @@ namespace SpineViewer.Spine.Implementations.SkeletonConverter
                 reader.StringTable.Add(reader.ReadString());
         }
 
-        private JsonArray ReadBones()
+        private void ReadBones()
         {
             JsonArray bones = [];
             for (int i = 0, n = reader.ReadVarInt(); i < n; i++)
             {
                 JsonObject data = [];
                 data["name"] = reader.ReadString();
-                if (i > 0) data["parent"] = bones[reader.ReadVarInt()]["name"].GetValue<string>();
+                if (i > 0) data["parent"] = (string)bones[reader.ReadVarInt()]["name"];
                 data["rotation"] = reader.ReadFloat();
                 data["x"] = reader.ReadFloat();
                 data["y"] = reader.ReadFloat();
@@ -89,10 +93,10 @@ namespace SpineViewer.Spine.Implementations.SkeletonConverter
                 if (nonessential) reader.ReadInt();
                 bones.Add(data);
             }
-            return bones;
+            root["bones"] = bones;
         }
 
-        private JsonArray ReadSlots()
+        private void ReadSlots()
         {
             JsonArray bones = root["bones"].AsArray();
             JsonArray slots = [];
@@ -100,7 +104,7 @@ namespace SpineViewer.Spine.Implementations.SkeletonConverter
             {
                 JsonObject data = [];
                 data["name"] = reader.ReadString();
-                data["bone"] = bones[reader.ReadVarInt()]["name"].GetValue<string>();
+                data["bone"] = (string)bones[reader.ReadVarInt()]["name"];
                 data["color"] = reader.ReadInt().ToString("x8"); // 0xrrggbbaa -> rrggbbaa
                 int dark = reader.ReadInt();
                 if (dark != -1) data["dark"] = dark.ToString("x6"); // 0x00rrggbb -> rrggbb
@@ -108,10 +112,10 @@ namespace SpineViewer.Spine.Implementations.SkeletonConverter
                 data["blend"] = ((BlendMode)reader.ReadVarInt()).ToString();
                 slots.Add(data);
             }
-            return slots;
+            root["slots"] = slots;
         }
 
-        private JsonArray ReadIK()
+        private void ReadIK()
         {
             JsonArray bones = root["bones"].AsArray();
             JsonArray ik = [];
@@ -122,7 +126,7 @@ namespace SpineViewer.Spine.Implementations.SkeletonConverter
                 data["order"] = reader.ReadVarInt();
                 data["skin"] = reader.ReadBoolean();
                 data["bones"] = ReadNames(bones);
-                data["target"] = bones[reader.ReadVarInt()]["name"].GetValue<string>();
+                data["target"] = (string)bones[reader.ReadVarInt()]["name"];
                 data["mix"] = reader.ReadFloat();
                 data["softness"] = reader.ReadFloat();
                 data["bendPositive"] = reader.ReadSByte() > 0;
@@ -131,10 +135,10 @@ namespace SpineViewer.Spine.Implementations.SkeletonConverter
                 data["uniform"] = reader.ReadBoolean();
                 ik.Add(data);
             }
-            return ik;
+            root["ik"] = ik;
         }
 
-        private JsonArray ReadTransform()
+        private void ReadTransform()
         {
             JsonArray bones = root["bones"].AsArray();
             JsonArray transform = [];
@@ -145,7 +149,7 @@ namespace SpineViewer.Spine.Implementations.SkeletonConverter
                 data["order"] = reader.ReadVarInt();
                 data["skin"] = reader.ReadBoolean();
                 data["bones"] = ReadNames(bones);
-                data["target"] = bones[reader.ReadVarInt()]["name"].GetValue<string>();
+                data["target"] = (string)bones[reader.ReadVarInt()]["name"];
                 data["local"] = reader.ReadBoolean();
                 data["relative"] = reader.ReadBoolean();
                 data["rotation"] = reader.ReadFloat();
@@ -160,10 +164,10 @@ namespace SpineViewer.Spine.Implementations.SkeletonConverter
                 data["shearMix"] = reader.ReadFloat();
                 transform.Add(data);
             }
-            return transform;
+            root["transform"] = transform;
         }
 
-        private JsonArray ReadPath()
+        private void ReadPath()
         {
             JsonArray bones = root["bones"].AsArray();
             JsonArray path = [];
@@ -174,7 +178,7 @@ namespace SpineViewer.Spine.Implementations.SkeletonConverter
                 data["order"] = reader.ReadVarInt();
                 data["skin"] = reader.ReadBoolean();
                 data["bones"] = ReadNames(bones);
-                data["target"] = bones[reader.ReadVarInt()]["name"].GetValue<string>();
+                data["target"] = (string)bones[reader.ReadVarInt()]["name"];
                 data["positionMode"] = ((PositionMode)reader.ReadVarInt()).ToString();
                 data["spacingMode"] = ((SpacingMode)reader.ReadVarInt()).ToString();
                 data["rotateMode"] = ((RotateMode)reader.ReadVarInt()).ToString();
@@ -185,10 +189,10 @@ namespace SpineViewer.Spine.Implementations.SkeletonConverter
                 data["translateMix"] = reader.ReadFloat();
                 path.Add(data);
             }
-            return path;
+            root["path"] = path;
         }
 
-        private JsonArray ReadSkins()
+        private void ReadSkins()
         {
             JsonArray skins = [];
 
@@ -200,7 +204,7 @@ namespace SpineViewer.Spine.Implementations.SkeletonConverter
             for (int n = reader.ReadVarInt(); n > 0; n--)
                 skins.Add(ReadSkin());
 
-            return skins;
+            root["skins"] = skins;
         }
 
         private JsonObject? ReadSkin(bool isDefault = false)
@@ -229,7 +233,7 @@ namespace SpineViewer.Spine.Implementations.SkeletonConverter
             while (slotCount-- > 0)
             {
                 JsonObject slotAttachments = [];
-                skinAttachments[slots[reader.ReadVarInt()]["name"].GetValue<string>()] = slotAttachments;
+                skinAttachments[(string)slots[reader.ReadVarInt()]["name"]] = slotAttachments;
                 for (int attachmentCount = reader.ReadVarInt(); attachmentCount > 0; attachmentCount--)
                 {
                     var attachmentKey = reader.ReadStringRef();
@@ -321,7 +325,7 @@ namespace SpineViewer.Spine.Implementations.SkeletonConverter
                     if (nonessential) reader.ReadInt();
                     break;
                 case AttachmentType.Clipping:
-                    attachment["end"] = slots[reader.ReadVarInt()]["name"].GetValue<string>();
+                    attachment["end"] = (string)slots[reader.ReadVarInt()]["name"];
                     vertexCount = reader.ReadVarInt();
                     attachment["vertexCount"] = vertexCount;
                     attachment["vertices"] = ReadVertices(vertexCount);
@@ -333,9 +337,9 @@ namespace SpineViewer.Spine.Implementations.SkeletonConverter
             return attachment;
         }
 
-        private JsonObject ReadEvents()
+        private void ReadEvents()
         {
-            idx2Event.Clear();
+            idx2event.Clear();
             JsonObject events = [];
             for (int n = reader.ReadVarInt(); n > 0; n--)
             {
@@ -352,12 +356,12 @@ namespace SpineViewer.Spine.Implementations.SkeletonConverter
                     data["volume"] = reader.ReadFloat();
                     data["balance"] = reader.ReadFloat();
                 }
-                idx2Event.Add(data);
+                idx2event.Add(data);
             }
-            return events;
+            root["events"] = events;
         }
 
-        private JsonObject ReadAnimations()
+        private void ReadAnimations()
         {
             JsonObject animations = [];
             for (int n = reader.ReadVarInt(); n > 0; n--)
@@ -373,7 +377,7 @@ namespace SpineViewer.Spine.Implementations.SkeletonConverter
                 if (ReadDrawOrderTimelines() is JsonArray draworder) data["drawOrder"] = draworder;
                 if (ReadEventTimelines() is JsonArray events) data["events"] = events;
             }
-            return animations;
+            root["animations"] = animations;
         }
 
         private JsonObject? ReadSlotTimelines()
@@ -384,7 +388,7 @@ namespace SpineViewer.Spine.Implementations.SkeletonConverter
             for (int slotCount = reader.ReadVarInt(); slotCount > 0; slotCount--)
             {
                 JsonObject timeline = [];
-                slotTimelines[slots[reader.ReadVarInt()]["name"].GetValue<string>()] = timeline;
+                slotTimelines[(string)slots[reader.ReadVarInt()]["name"]] = timeline;
                 for (int timelineCount = reader.ReadVarInt(); timelineCount > 0; timelineCount--)
                 {
                     JsonArray frames = [];
@@ -447,7 +451,7 @@ namespace SpineViewer.Spine.Implementations.SkeletonConverter
             for (int boneCount = reader.ReadVarInt(); boneCount > 0; boneCount--)
             {
                 JsonObject timeline = [];
-                boneTimelines[bones[reader.ReadVarInt()]["name"].GetValue<string>()] = timeline;
+                boneTimelines[(string)bones[reader.ReadVarInt()]["name"]] = timeline;
                 for (int timelineCount = reader.ReadVarInt(); timelineCount > 0; timelineCount--)
                 {
                     JsonArray frames = [];
@@ -527,7 +531,7 @@ namespace SpineViewer.Spine.Implementations.SkeletonConverter
             for (int ikCount = reader.ReadVarInt(); ikCount > 0; ikCount--)
             {
                 JsonArray frames = [];
-                ikTimelines[ik[reader.ReadVarInt()]["name"].GetValue<string>()] = frames;
+                ikTimelines[(string)ik[reader.ReadVarInt()]["name"]] = frames;
                 for (int frameCount = reader.ReadVarInt(); frameCount > 0; frameCount--)
                 {
                     var o = new JsonObject()
@@ -555,7 +559,7 @@ namespace SpineViewer.Spine.Implementations.SkeletonConverter
             for (int transformCount = reader.ReadVarInt(); transformCount > 0; transformCount--)
             {
                 JsonArray frames = [];
-                transformTimelines[transform[reader.ReadVarInt()]["name"].GetValue<string>()] = frames;
+                transformTimelines[(string)transform[reader.ReadVarInt()]["name"]] = frames;
                 for (int frameCount = reader.ReadVarInt(); frameCount > 0; frameCount--)
                 {
                     var o = new JsonObject()
@@ -582,7 +586,7 @@ namespace SpineViewer.Spine.Implementations.SkeletonConverter
             for (int pathCount = reader.ReadVarInt(); pathCount > 0; pathCount--)
             {
                 JsonObject timeline = [];
-                pathTimelines[path[reader.ReadVarInt()]["name"].GetValue<string>()] = timeline;
+                pathTimelines[(string)path[reader.ReadVarInt()]["name"]] = timeline;
                 for (int timelineCount = reader.ReadVarInt(); timelineCount > 0; timelineCount--)
                 {
                     JsonArray frames = [];
@@ -643,18 +647,15 @@ namespace SpineViewer.Spine.Implementations.SkeletonConverter
             JsonArray skins = root["skins"].AsArray();
             JsonObject deformTimelines = [];
 
-            //for (int skinCount = reader.ReadVarInt(); skinCount > 0; skinCount--)
-            for (int i = 0, n = reader.ReadVarInt(); i < n; i++)
+            for (int skinCount = reader.ReadVarInt(); skinCount > 0; skinCount--)
             {
                 JsonObject skinValue = [];
-                deformTimelines[skins[reader.ReadVarInt()]["name"].GetValue<string>()] = skinValue;
-                //for (int slotCount = reader.ReadVarInt(); slotCount > 0; slotCount--)
-                for (int ii = 0, nn = reader.ReadVarInt(); ii < nn; ii++)
+                deformTimelines[(string)skins[reader.ReadVarInt()]["name"]] = skinValue;
+                for (int slotCount = reader.ReadVarInt(); slotCount > 0; slotCount--)
                 {
                     JsonObject slotValue = [];
-                    skinValue[slots[reader.ReadVarInt()]["name"].GetValue<string>()] = slotValue;
-                    //for (int attachmentCount = reader.ReadVarInt(); attachmentCount > 0; attachmentCount--)
-                    for (int iii = 0, nnn = reader.ReadVarInt(); iii < nnn; iii++)
+                    skinValue[(string)slots[reader.ReadVarInt()]["name"]] = slotValue;
+                    for (int attachmentCount = reader.ReadVarInt(); attachmentCount > 0; attachmentCount--)
                     {
                         JsonArray frames = [];
                         slotValue[reader.ReadStringRef()] = frames;
@@ -698,7 +699,7 @@ namespace SpineViewer.Spine.Implementations.SkeletonConverter
                 {
                     offsets.Add(new JsonObject()
                     {
-                        ["slot"] = slots[reader.ReadVarInt()]["name"].GetValue<string>(),
+                        ["slot"] = (string)slots[reader.ReadVarInt()]["name"],
                         ["offset"] = reader.ReadVarInt(),
                     });
                 }
@@ -715,15 +716,15 @@ namespace SpineViewer.Spine.Implementations.SkeletonConverter
             {
                 JsonObject data = [];
                 data["time"] = reader.ReadFloat();
-                JsonObject eventData = idx2Event[reader.ReadVarInt()].AsObject();
-                data["name"] = eventData["name"].GetValue<string>();
+                JsonObject eventData = idx2event[reader.ReadVarInt()].AsObject();
+                data["name"] = (string)eventData["name"];
                 data["int"] = reader.ReadVarInt();
                 data["float"] = reader.ReadFloat();
-                data["string"] = reader.ReadBoolean() ? reader.ReadString() : eventData["string"].GetValue<string>();
+                data["string"] = reader.ReadBoolean() ? reader.ReadString() : (string)eventData["string"];
                 if (eventData.ContainsKey("audio"))
                 {
-                    data["volume"] = eventData["volume"].GetValue<string>();
-                    data["balance"] = eventData["balance"].GetValue<string>();
+                    data["volume"] = (string)eventData["volume"];
+                    data["balance"] = (string)eventData["balance"];
                 }
                 eventTimelines.Add(data);
             }
@@ -735,7 +736,7 @@ namespace SpineViewer.Spine.Implementations.SkeletonConverter
         {
             JsonArray names = [];
             for (int n = reader.ReadVarInt(); n > 0; n--)
-                names.Add(array[reader.ReadVarInt()]["name"].GetValue<string>());
+                names.Add((string)array[reader.ReadVarInt()]["name"]);
             return names;
         }
 
@@ -801,9 +802,288 @@ namespace SpineViewer.Spine.Implementations.SkeletonConverter
             }
         }
 
-        protected override void WriteBinary(JsonObject root, string binPath)
+        private SkeletonWriter writer;
+        private readonly Dictionary<string, int> bone2idx = [];
+        private readonly Dictionary<string, int> slot2idx = [];
+        private readonly Dictionary<string, int> ik2idx = [];
+        private readonly Dictionary<string, int> transform2idx = [];
+        private readonly Dictionary<string, int> path2idx = [];
+        private readonly Dictionary<string, int> event2idx = [];
+
+        public override void WriteBinary(JsonObject root, string binPath, bool nonessential = false)
         {
-            throw new NotImplementedException();
+            this.nonessential = nonessential;
+            this.root = root;
+
+            using var outputBody = new MemoryStream(); // 先把主体写入内存缓冲区
+            writer = new(outputBody);
+
+            WriteBones();
+            WriteSlots();
+            WriteIK();
+            WriteTransform();
+            WritePath();
+            WriteSkins();
+            WriteEvents();
+            WriteAnimations();
+            
+            //using var output = File.Create(binPath); // 将数据写入文件
+            //writer = new(output);
+
+            WriteSkeleton();
+            WriteStrings();
+            //output.Write(outputBody.GetBuffer());
+
+            writer = null;
+            this.root = null;
+        }
+
+        private void WriteSkeleton()
+        {
+            JsonObject skeleton = root["skeleton"].AsObject();
+            writer.WriteString((string)skeleton["hash"]);
+            writer.WriteString((string)skeleton["spine"]);
+            if (skeleton.TryGetPropertyValue("x", out var x)) writer.WriteFloat((float)x); else writer.WriteFloat(0);
+            if (skeleton.TryGetPropertyValue("y", out var y)) writer.WriteFloat((float)y); else writer.WriteFloat(0);
+            if (skeleton.TryGetPropertyValue("width", out var width)) writer.WriteFloat((float)width); else writer.WriteFloat(0);
+            if (skeleton.TryGetPropertyValue("height", out var height)) writer.WriteFloat((float)height); else writer.WriteFloat(0);
+            writer.WriteBoolean(nonessential);
+            if (nonessential)
+            {
+                if (skeleton.TryGetPropertyValue("fps", out var fps)) writer.WriteFloat((float)fps); else writer.WriteFloat(30);
+                if (skeleton.TryGetPropertyValue("images", out var images)) writer.WriteString((string)images); else writer.WriteString(null);
+                if (skeleton.TryGetPropertyValue("audio", out var audio)) writer.WriteString((string)audio); else writer.WriteString(null);
+            }
+        }
+
+        private void WriteStrings()
+        {
+            writer.WriteVarInt(writer.StringTable.Count);
+            foreach (var s in writer.StringTable)
+                writer.WriteString(s);
+        }
+
+        private void WriteBones()
+        {
+            if (!root.ContainsKey("bones"))
+            {
+                writer.WriteVarInt(0);
+                return;
+            }
+            JsonArray bones = root["bones"].AsArray();
+            writer.WriteVarInt(bones.Count);
+            for (int i = 0, n = bones.Count; i < n; i++)
+            {
+                JsonObject data = bones[i].AsObject();
+                var name = (string)data["name"];
+                writer.WriteString(name);
+                if (i > 0) writer.WriteVarInt(bone2idx[(string)data["parent"]]);
+                if (data.TryGetPropertyValue("rotation", out var rotation)) writer.WriteFloat((float)rotation); else writer.WriteFloat(0);
+                if (data.TryGetPropertyValue("x", out var x)) writer.WriteFloat((float)x); else writer.WriteFloat(0);
+                if (data.TryGetPropertyValue("y", out var y)) writer.WriteFloat((float)y); else writer.WriteFloat(0);
+                if (data.TryGetPropertyValue("scaleX", out var scaleX)) writer.WriteFloat((float)scaleX); else writer.WriteFloat(1);
+                if (data.TryGetPropertyValue("scaleY", out var scaleY)) writer.WriteFloat((float)scaleY); else writer.WriteFloat(1);
+                if (data.TryGetPropertyValue("shearX", out var shearX)) writer.WriteFloat((float)shearX); else writer.WriteFloat(0);
+                if (data.TryGetPropertyValue("shearY", out var shearY)) writer.WriteFloat((float)shearY); else writer.WriteFloat(0);
+                if (data.TryGetPropertyValue("length", out var length)) writer.WriteFloat((float)length); else writer.WriteFloat(0);
+                if (data.TryGetPropertyValue("transform", out var transform)) writer.WriteVarInt((int)Enum.Parse<TransformMode>((string)transform, true)); else writer.WriteVarInt((int)TransformMode.Normal);
+                if (data.TryGetPropertyValue("skin", out var skin)) writer.WriteBoolean((bool)skin); else writer.WriteBoolean(false);
+                if (nonessential) writer.WriteInt(0);
+                bone2idx[name] = i;
+            }
+        }
+
+        private void WriteSlots()
+        {
+            if (!root.ContainsKey("slots"))
+            {
+                writer.WriteVarInt(0);
+                return;
+            }
+            JsonArray slots = root["slots"].AsArray();
+            writer.WriteVarInt(slots.Count);
+            for (int i = 0, n = slots.Count; i < n; i++)
+            {
+                JsonObject data = slots[i].AsObject();
+                var name = (string)data["name"];
+                writer.WriteString(name);
+                writer.WriteVarInt(bone2idx[(string)data["bone"]]);
+                if (data.TryGetPropertyValue("color", out var color)) writer.WriteInt(int.Parse((string)color, NumberStyles.HexNumber)); else writer.WriteInt(0);
+                if (data.TryGetPropertyValue("dark", out var dark)) writer.WriteInt(int.Parse((string)dark, NumberStyles.HexNumber)); else writer.WriteInt(-1);
+                if (data.TryGetPropertyValue("attachment", out var attachment)) writer.WriteStringRef((string)attachment); else writer.WriteStringRef(null);
+                if (data.TryGetPropertyValue("blend", out var blend)) writer.WriteVarInt((int)Enum.Parse<BlendMode>((string)blend, true)); else writer.WriteVarInt((int)BlendMode.Normal);
+                slot2idx[name] = i;
+            }
+        }
+
+        private void WriteIK()
+        {
+            if (!root.ContainsKey("ik"))
+            {
+                writer.WriteVarInt(0);
+                return;
+            }
+            JsonArray ik = root["ik"].AsArray();
+            writer.WriteVarInt(ik.Count);
+            for (int i = 0, n = ik.Count; i < n; i++)
+            {
+                JsonObject data = ik[i].AsObject();
+                var name = (string)data["name"];
+                writer.WriteString(name);
+                if (data.TryGetPropertyValue("order", out var order)) writer.WriteVarInt((int)order); else writer.WriteVarInt(0);
+                if (data.TryGetPropertyValue("skin", out var skin)) writer.WriteBoolean((bool)skin); else writer.WriteBoolean(false);
+                if (data.TryGetPropertyValue("bones", out var bones)) WriteNames(bone2idx, bones.AsArray()); else writer.WriteVarInt(0);
+                writer.WriteVarInt(bone2idx[(string)data["target"]]);
+                if (data.TryGetPropertyValue("mix", out var mix)) writer.WriteFloat((float)mix); else writer.WriteFloat(1);
+                if (data.TryGetPropertyValue("softness", out var softness)) writer.WriteFloat((float)softness); else writer.WriteFloat(0);
+                if (data.TryGetPropertyValue("bendPositive", out var bendPositive)) writer.WriteSByte((sbyte)((bool)bendPositive ? 1 : -1)); else writer.WriteSByte(1);
+                if (data.TryGetPropertyValue("compress", out var compress)) writer.WriteBoolean((bool)compress); else writer.WriteBoolean(false);
+                if (data.TryGetPropertyValue("stretch", out var stretch)) writer.WriteBoolean((bool)stretch); else writer.WriteBoolean(false);
+                if (data.TryGetPropertyValue("uniform", out var uniform)) writer.WriteBoolean((bool)uniform); else writer.WriteBoolean(false);
+                ik2idx[name] = i;
+            }
+        }
+
+        private void WriteTransform()
+        {
+            if (!root.ContainsKey("transform"))
+            {
+                writer.WriteVarInt(0);
+                return;
+            }
+            JsonArray transform = root["transform"].AsArray();
+            writer.WriteVarInt(transform.Count);
+            for (int i = 0, n = transform.Count; i < n; i++)
+            {
+                JsonObject data = transform[i].AsObject();
+                var name = (string)data["name"];
+                writer.WriteString(name);
+                if (data.TryGetPropertyValue("order", out var order)) writer.WriteVarInt((int)order); else writer.WriteVarInt(0);
+                if (data.TryGetPropertyValue("skin", out var skin)) writer.WriteBoolean((bool)skin); else writer.WriteBoolean(false);
+                if (data.TryGetPropertyValue("bones", out var bones)) WriteNames(bone2idx, bones.AsArray()); else writer.WriteVarInt(0);
+                writer.WriteVarInt(bone2idx[(string)data["target"]]);
+                if (data.TryGetPropertyValue("local", out var local)) writer.WriteBoolean((bool)local); else writer.WriteBoolean(false);
+                if (data.TryGetPropertyValue("relative", out var relative)) writer.WriteBoolean((bool)relative); else writer.WriteBoolean(false);
+                if (data.TryGetPropertyValue("rotation", out var rotation)) writer.WriteFloat((float)rotation); else writer.WriteFloat(0);
+                if (data.TryGetPropertyValue("x", out var x)) writer.WriteFloat((float)x); else writer.WriteFloat(0);
+                if (data.TryGetPropertyValue("y", out var y)) writer.WriteFloat((float)y); else writer.WriteFloat(0);
+                if (data.TryGetPropertyValue("scaleX", out var scaleX)) writer.WriteFloat((float)scaleX); else writer.WriteFloat(0);
+                if (data.TryGetPropertyValue("scaleY", out var scaleY)) writer.WriteFloat((float)scaleY); else writer.WriteFloat(0);
+                if (data.TryGetPropertyValue("shearY", out var shearY)) writer.WriteFloat((float)shearY); else writer.WriteFloat(0);
+                if (data.TryGetPropertyValue("rotateMix", out var rotateMix)) writer.WriteFloat((float)rotateMix); else writer.WriteFloat(1);
+                if (data.TryGetPropertyValue("translateMix", out var translateMix)) writer.WriteFloat((float)translateMix); else writer.WriteFloat(1);
+                if (data.TryGetPropertyValue("scaleMix", out var scaleMix)) writer.WriteFloat((float)scaleMix); else writer.WriteFloat(1);
+                if (data.TryGetPropertyValue("shearMix", out var shearMix)) writer.WriteFloat((float)shearMix); else writer.WriteFloat(1);
+                transform2idx[name] = i;
+            }
+        }
+
+        private void WritePath()
+        {
+            if (!root.ContainsKey("path"))
+            {
+                writer.WriteVarInt(0);
+                return;
+            }
+            JsonArray path = root["path"].AsArray();
+            writer.WriteVarInt(path.Count);
+            for (int i = 0, n = path.Count; i < n; i++)
+            {
+                JsonObject data = path[i].AsObject();
+                var name = (string)data["name"];
+                writer.WriteString(name);
+                if (data.TryGetPropertyValue("order", out var order)) writer.WriteVarInt((int)order); else writer.WriteVarInt(0);
+                if (data.TryGetPropertyValue("skin", out var skin)) writer.WriteBoolean((bool)skin); else writer.WriteBoolean(false);
+                if (data.TryGetPropertyValue("bones", out var bones)) WriteNames(bone2idx, bones.AsArray()); else writer.WriteVarInt(0);
+                writer.WriteVarInt(bone2idx[(string)data["target"]]);
+                if (data.TryGetPropertyValue("positionMode", out var positionMode)) writer.WriteVarInt((int)Enum.Parse<PositionMode>((string)positionMode, true)); else writer.WriteVarInt((int)PositionMode.Percent);
+                if (data.TryGetPropertyValue("spacingMode", out var spacingMode)) writer.WriteVarInt((int)Enum.Parse<SpacingMode>((string)spacingMode, true)); else writer.WriteVarInt((int)SpacingMode.Length);
+                if (data.TryGetPropertyValue("rotateMode", out var rotateMode)) writer.WriteVarInt((int)Enum.Parse<RotateMode>((string)rotateMode, true)); else writer.WriteVarInt((int)RotateMode.Tangent);
+                if (data.TryGetPropertyValue("rotation", out var rotation)) writer.WriteFloat((float)rotation); else writer.WriteFloat(0);
+                if (data.TryGetPropertyValue("position", out var position)) writer.WriteFloat((float)position); else writer.WriteFloat(0);
+                if (data.TryGetPropertyValue("spacing", out var spacing)) writer.WriteFloat((float)spacing); else writer.WriteFloat(0);
+                if (data.TryGetPropertyValue("rotateMix", out var rotateMix)) writer.WriteFloat((float)rotateMix); else writer.WriteFloat(1);
+                if (data.TryGetPropertyValue("translateMix", out var translateMix)) writer.WriteFloat((float)translateMix); else writer.WriteFloat(1);
+                path2idx[name] = i;
+            }
+        }
+
+        private void WriteSkins()
+        {
+            if (!root.ContainsKey("skins"))
+            {
+                writer.WriteVarInt(0);
+                return;
+            }
+            JsonArray skins = root["skins"].AsArray();
+            writer.WriteVarInt(skins.Count);
+            for (int i = 0, n = skins.Count; i < n; i++)
+            {
+                throw new NotImplementedException();
+            }
+        }
+
+        private void WriteEvents()
+        {
+            if (!root.ContainsKey("events"))
+            {
+                writer.WriteVarInt(0);
+                return;
+            }
+            JsonObject events = root["events"].AsObject();
+            writer.WriteVarInt(events.Count);
+            int i = 0;
+            foreach (var (name, _data) in events)
+            {
+                JsonObject data = _data.AsObject();
+                writer.WriteStringRef(name);
+                if (data.TryGetPropertyValue("int", out var @int)) writer.WriteVarInt((int)@int); else writer.WriteVarInt(0);
+                if (data.TryGetPropertyValue("float", out var @float)) writer.WriteFloat((float)@float); else writer.WriteFloat(0);
+                if (data.TryGetPropertyValue("string", out var @string)) writer.WriteString((string)@string); else writer.WriteString("");
+                if (data.TryGetPropertyValue("audio", out var _audio))
+                {
+                    var audio = (string)_audio;
+                    writer.WriteString(audio);
+                    if (audio is not null)
+                    {
+                        if (data.TryGetPropertyValue("volume", out var volume)) writer.WriteFloat((float)volume); else writer.WriteFloat(1);
+                        if (data.TryGetPropertyValue("balance", out var balance)) writer.WriteFloat((float)balance); else writer.WriteFloat(0);
+                    }
+                }
+                event2idx[name] = i++;
+            }
+        }
+
+        private void WriteAnimations()
+        {
+            if (!root.ContainsKey("animations"))
+            {
+                writer.WriteVarInt(0);
+                return;
+            }
+            JsonArray animations = root["animations"].AsArray();
+            writer.WriteVarInt(animations.Count);
+            for (int i = 0, n = animations.Count; i < n; i++)
+            {
+                throw new NotImplementedException();
+            }
+        }
+
+        private void WriteNames(Dictionary<string, int> name2idx, JsonArray names)
+        {
+            writer.WriteVarInt(names.Count);
+            foreach (var name in names)
+                writer.WriteVarInt(name2idx[(string)name]);
+        }
+
+        public override JsonObject ToVersion(JsonObject root, Version version)
+        {
+            root = version switch
+            {
+                Version.V38 => root.DeepClone().AsObject(),
+                _ => throw new NotImplementedException(),
+            };
+            return root;
         }
 
         //public void WriteFloatArray(float[] array)

SpineViewer/Spine/Implementations/Spine/Spine21.cs

@@ -13,6 +13,8 @@ namespace SpineViewer.Spine.Implementations.Spine
     [SpineImplementation(Version.V21)]
     internal class Spine21 : SpineViewer.Spine.Spine
     {
+        private static readonly Animation EmptyAnimation = new(EMPTY_ANIMATION, [], 0);
+
         private class TextureLoader : SpineRuntime21.TextureLoader
         {
             public void Load(AtlasPage page, string path)
@@ -172,8 +174,15 @@ namespace SpineViewer.Spine.Implementations.Spine
 
         public override string CurrentAnimation
         {
-            get => animationState.GetCurrent(0)?.Animation.Name ?? DefaultAnimationName;
-            set { if (animationNames.Contains(value)) { animationState.SetAnimation(0, value, true); Update(0); } }
+            get => animationState.GetCurrent(0)?.Animation.Name ?? EMPTY_ANIMATION;
+            set
+            {
+                if (value == EMPTY_ANIMATION)
+                    animationState.SetAnimation(0, EmptyAnimation, false);
+                else if (animationNames.Contains(value))
+                    animationState.SetAnimation(0, value, true);
+                Update(0);
+            }
         }
 
         public override RectangleF Bounds

SpineViewer/Spine/Implementations/Spine/Spine36.cs

@@ -13,6 +13,8 @@ namespace SpineViewer.Spine.Implementations.Spine
     [SpineImplementation(Version.V36)]
     internal class Spine36 : SpineViewer.Spine.Spine
     {
+        private static readonly Animation EmptyAnimation = new(EMPTY_ANIMATION, [], 0);
+
         private class TextureLoader : SpineRuntime36.TextureLoader
         {
             public void Load(AtlasPage page, string path)
@@ -170,8 +172,15 @@ namespace SpineViewer.Spine.Implementations.Spine
 
         public override string CurrentAnimation
         {
-            get => animationState.GetCurrent(0)?.Animation.Name ?? DefaultAnimationName;
-            set { if (animationNames.Contains(value)) { animationState.SetAnimation(0, value, true); Update(0); } }
+            get => animationState.GetCurrent(0)?.Animation.Name ?? EMPTY_ANIMATION;
+            set
+            {
+                if (value == EMPTY_ANIMATION)
+                    animationState.SetAnimation(0, EmptyAnimation, false);
+                else if (animationNames.Contains(value))
+                    animationState.SetAnimation(0, value, true);
+                Update(0);
+            }
         }
 
         public override RectangleF Bounds

SpineViewer/Spine/Implementations/Spine/Spine37.cs

@@ -10,6 +10,8 @@ namespace SpineViewer.Spine.Implementations.Spine
     [SpineImplementation(Version.V37)]
     internal class Spine37 : SpineViewer.Spine.Spine
     {
+        private static readonly Animation EmptyAnimation = new(EMPTY_ANIMATION, [], 0);
+
         private class TextureLoader : SpineRuntime37.TextureLoader
         {
             public void Load(AtlasPage page, string path)
@@ -177,8 +179,15 @@ namespace SpineViewer.Spine.Implementations.Spine
 
         public override string CurrentAnimation
         {
-            get => animationState.GetCurrent(0)?.Animation.Name ?? DefaultAnimationName;
-            set { if (animationNames.Contains(value)) { animationState.SetAnimation(0, value, true); Update(0); } }
+            get => animationState.GetCurrent(0)?.Animation.Name ?? EMPTY_ANIMATION;
+            set
+            {
+                if (value == EMPTY_ANIMATION)
+                    animationState.SetAnimation(0, EmptyAnimation, false);
+                else if (animationNames.Contains(value))
+                    animationState.SetAnimation(0, value, true);
+                Update(0);
+            }
         }
 
         public override RectangleF Bounds

SpineViewer/Spine/Implementations/Spine/Spine38.cs

@@ -13,6 +13,8 @@ namespace SpineViewer.Spine.Implementations.Spine
     [SpineImplementation(Version.V38)]
     internal class Spine38 : SpineViewer.Spine.Spine
     {
+        private static readonly Animation EmptyAnimation = new(EMPTY_ANIMATION, [], 0);
+
         private class TextureLoader : SpineRuntime38.TextureLoader
         {
             public void Load(AtlasPage page, string path)
@@ -180,8 +182,15 @@ namespace SpineViewer.Spine.Implementations.Spine
 
         public override string CurrentAnimation
         {
-            get => animationState.GetCurrent(0)?.Animation.Name ?? DefaultAnimationName;
-            set { if (animationNames.Contains(value)) { animationState.SetAnimation(0, value, true); Update(0); } }
+            get => animationState.GetCurrent(0)?.Animation.Name ?? EMPTY_ANIMATION;
+            set 
+            {
+                if (value == EMPTY_ANIMATION)
+                    animationState.SetAnimation(0, EmptyAnimation, false);
+                else if (animationNames.Contains(value))
+                    animationState.SetAnimation(0, value, true);
+                Update(0);
+            }
         }
 
         public override RectangleF Bounds

SpineViewer/Spine/Implementations/Spine/Spine40.cs

@@ -12,6 +12,8 @@ namespace SpineViewer.Spine.Implementations.Spine
     [SpineImplementation(Version.V40)]
     internal class Spine40 : SpineViewer.Spine.Spine
     {
+        private static readonly Animation EmptyAnimation = new(EMPTY_ANIMATION, [], 0);
+
         private class TextureLoader : SpineRuntime40.TextureLoader
         {
             public void Load(AtlasPage page, string path)
@@ -179,8 +181,15 @@ namespace SpineViewer.Spine.Implementations.Spine
 
         public override string CurrentAnimation
         {
-            get => animationState.GetCurrent(0)?.Animation.Name ?? DefaultAnimationName;
-            set { if (animationNames.Contains(value)) { animationState.SetAnimation(0, value, true); Update(0); } }
+            get => animationState.GetCurrent(0)?.Animation.Name ?? EMPTY_ANIMATION;
+            set
+            {
+                if (value == EMPTY_ANIMATION)
+                    animationState.SetAnimation(0, EmptyAnimation, false);
+                else if (animationNames.Contains(value))
+                    animationState.SetAnimation(0, value, true);
+                Update(0);
+            }
         }
 
         public override RectangleF Bounds

SpineViewer/Spine/Implementations/Spine/Spine41.cs

@@ -12,6 +12,8 @@ namespace SpineViewer.Spine.Implementations.Spine
     [SpineImplementation(Version.V41)]
     internal class Spine41 : SpineViewer.Spine.Spine
     {
+        private static readonly Animation EmptyAnimation = new(EMPTY_ANIMATION, [], 0);
+
         private class TextureLoader : SpineRuntime41.TextureLoader
         {
             public void Load(AtlasPage page, string path)
@@ -179,8 +181,15 @@ namespace SpineViewer.Spine.Implementations.Spine
 
         public override string CurrentAnimation
         {
-            get => animationState.GetCurrent(0)?.Animation.Name ?? DefaultAnimationName;
-            set { if (animationNames.Contains(value)) { animationState.SetAnimation(0, value, true); Update(0); } }
+            get => animationState.GetCurrent(0)?.Animation.Name ?? EMPTY_ANIMATION;
+            set
+            {
+                if (value == EMPTY_ANIMATION)
+                    animationState.SetAnimation(0, EmptyAnimation, false);
+                else if (animationNames.Contains(value))
+                    animationState.SetAnimation(0, value, true);
+                Update(0);
+            }
         }
 
         public override RectangleF Bounds

SpineViewer/Spine/Implementations/Spine/Spine42.cs

@@ -12,6 +12,8 @@ namespace SpineViewer.Spine.Implementations.Spine
     [SpineImplementation(Version.V42)]
     internal class Spine42 : SpineViewer.Spine.Spine
     {
+        private static readonly Animation EmptyAnimation = new(EMPTY_ANIMATION, [], 0);
+
         private class TextureLoader : SpineRuntime42.TextureLoader
         {
             public void Load(AtlasPage page, string path)
@@ -179,8 +181,15 @@ namespace SpineViewer.Spine.Implementations.Spine
 
         public override string CurrentAnimation
         {
-            get => animationState.GetCurrent(0)?.Animation.Name ?? DefaultAnimationName;
-            set { if (animationNames.Contains(value)) { animationState.SetAnimation(0, value, true); Update(0); } }
+            get => animationState.GetCurrent(0)?.Animation.Name ?? EMPTY_ANIMATION;
+            set
+            {
+                if (value == EMPTY_ANIMATION)
+                    animationState.SetAnimation(0, EmptyAnimation, false);
+                else if (animationNames.Contains(value))
+                    animationState.SetAnimation(0, value, true);
+                Update(0);
+            }
         }
 
         public override RectangleF Bounds

SpineViewer/Spine/SkeletonConverter.cs

@@ -82,17 +82,17 @@ namespace SpineViewer.Spine
         /// <summary>
         /// 读取二进制骨骼文件并构造 Json 对象
         /// </summary>
-        protected abstract JsonObject ReadBinary(string binPath);
+        public abstract JsonObject ReadBinary(string binPath);
 
         /// <summary>
         /// 将 Json 对象写入二进制骨骼文件
         /// </summary>
-        protected abstract void WriteBinary(JsonObject root, string binPath);
+        public abstract void WriteBinary(JsonObject root, string binPath, bool nonessential = false);
 
         /// <summary>
         /// 读取 Json 对象
         /// </summary>
-        private JsonObject ReadJson(string jsonPath)
+        public JsonObject ReadJson(string jsonPath)
         {
             using var input = File.OpenRead(jsonPath);
             if (JsonNode.Parse(input) is JsonObject root)
@@ -104,7 +104,7 @@ namespace SpineViewer.Spine
         /// <summary>
         /// 写入 Json 对象
         /// </summary>
-        private void WriteJson(JsonObject root, string jsonPath)
+        public void WriteJson(JsonObject root, string jsonPath)
         {
             using var output = File.Create(jsonPath);
             using var writer = new Utf8JsonWriter(output, jsonWriterOptions);
@@ -112,20 +112,9 @@ namespace SpineViewer.Spine
         }
 
         /// <summary>
-        /// 二进制转 Json 格式
+        /// 转换到目标版本
         /// </summary>
-        public void BinaryToJson(string binPath, string jsonPath)
-        {
-            WriteJson(ReadBinary(binPath), jsonPath);
-        }
-
-        /// <summary>
-        /// Json 转二进制格式
-        /// </summary>
-        public void JsonToBinary(string jsonPath, string binPath)
-        {
-            WriteBinary(ReadJson(jsonPath), binPath);
-        }
+        public abstract JsonObject ToVersion(JsonObject root, Version version);
 
         protected class SkeletonReader
         {
@@ -234,7 +223,7 @@ namespace SpineViewer.Spine
         {
             protected byte[] buffer = new byte[32];
             protected byte[] bytesBigEndian = new byte[8];
-            public readonly List<string> Strings = new(32);
+            public readonly List<string> StringTable = new(32);
             protected Stream output;
 
             public SkeletonWriter(Stream output) { this.output = output; }
@@ -323,18 +312,18 @@ namespace SpineViewer.Spine
                 System.Text.Encoding.UTF8.GetBytes(val, 0, val.Length, buffer, 0);
                 WriteFully(buffer, 0, byteCount);
             }
-            public void WriteStringRef(List<string> strings, string val)
+            public void WriteStringRef(string val)
             {
                 if (val is null)
                 {
                     WriteVarInt(0);
                     return;
                 }
-                int index = strings.IndexOf(val);
+                int index = StringTable.IndexOf(val);
                 if (index < 0)
                 {
-                    strings.Add(val);
-                    index = strings.Count - 1;
+                    StringTable.Add(val);
+                    index = StringTable.Count - 1;
                 }
                 WriteVarInt(index + 1);
             }

SpineViewer/Spine/Spine.cs

@@ -36,6 +36,21 @@ namespace SpineViewer.Spine
     /// </summary>
     public abstract class Spine : SFML.Graphics.Drawable, IDisposable
     {
+        /// <summary>
+        /// 空动画标记
+        /// </summary>
+        public const string EMPTY_ANIMATION = "<Empty>";
+
+        /// <summary>
+        /// 预览图大小
+        /// </summary>
+        public static readonly Size PREVIEW_SIZE = new(256, 256);
+
+        /// <summary>
+        /// 缩放最小值
+        /// </summary>
+        public const float SCALE_MIN = 0.001f;
+
         /// <summary>
         /// 实现类缓存
         /// </summary>
@@ -103,6 +118,11 @@ namespace SpineViewer.Spine
             return (Spine)Activator.CreateInstance(spineType, skelPath, atlasPath);
         }
 
+        /// <summary>
+        /// 标识符
+        /// </summary>
+        public readonly string ID = Guid.NewGuid().ToString();
+
         /// <summary>
         /// 构造函数
         /// </summary>
@@ -127,13 +147,7 @@ namespace SpineViewer.Spine
 
         ~Spine() { Dispose(false); }
         public void Dispose() { Dispose(true); GC.SuppressFinalize(this); }
-        protected virtual void Dispose(bool disposing) { }
-
-        /// <summary>
-        /// 缩放最小值
-        /// </summary>
-        [Browsable(false)]
-        public const float SCALE_MIN = 0.001f;
+        protected virtual void Dispose(bool disposing) { preview?.Dispose(); }
 
         /// <summary>
         /// 获取所属版本
@@ -199,7 +213,7 @@ namespace SpineViewer.Spine
         /// </summary>
         [Browsable(false)]
         public ReadOnlyCollection<string> AnimationNames { get => animationNames.AsReadOnly(); }
-        protected List<string> animationNames = [];
+        protected List<string> animationNames = [EMPTY_ANIMATION];
 
         /// <summary>
         /// 默认动画名称
@@ -226,6 +240,61 @@ namespace SpineViewer.Spine
         [Browsable(false)]
         public abstract RectangleF Bounds { get; }
 
+        /// <summary>
+        /// 骨骼预览图
+        /// </summary>
+        [Browsable(false)]
+        public Image Preview
+        {
+            get
+            {
+                if (preview is null)
+                {
+                    using var img = GetPreview((uint)PREVIEW_SIZE.Width, (uint)PREVIEW_SIZE.Height);
+                    img.SaveToMemory(out var imgBuffer, "bmp");
+                    using var stream = new MemoryStream(imgBuffer);
+                    preview = new Bitmap(stream);
+                }
+                return preview;
+            }
+        }
+        private Image preview = null;
+
+        /// <summary>
+        /// 获取指定尺寸的预览图
+        /// </summary>
+        public SFML.Graphics.Image GetPreview(uint width, uint height)
+        {
+            var curAnimation = CurrentAnimation;
+            CurrentAnimation = EMPTY_ANIMATION;
+            var bounds = Bounds;
+
+            float viewX = width;
+            float viewY = height;
+            float sizeX = bounds.Width;
+            float sizeY = bounds.Height;
+
+            var scale = 1f;
+            if ((sizeY / sizeX) < (viewY / viewX))
+                scale = sizeX / viewX;// 相同的 X, 视窗 Y 更大
+            else
+                scale = sizeY / viewY;// 相同的 Y, 视窗 X 更大
+
+            viewX *= scale;
+            viewY *= scale;
+
+            using var tex = new SFML.Graphics.RenderTexture(width, height);
+            var view = tex.GetView();
+            view.Center = new(bounds.X + viewX / 2, bounds.Y + viewY / 2);
+            view.Size = new(viewX, -viewY);
+            tex.SetView(view);
+            tex.Clear(SFML.Graphics.Color.Transparent);
+            tex.Draw(this);
+            tex.Display();
+            CurrentAnimation = curAnimation;
+            return tex.Texture.CopyToImage();
+        }
+
         /// <summary>
         /// 获取动画时长, 如果动画不存在则返回 0
         /// </summary>

SpineViewer/Spine/TypeConverter.cs

@@ -42,11 +42,7 @@ namespace SpineViewer.Spine
         public override StandardValuesCollection? GetStandardValues(ITypeDescriptorContext? context)
         {
             if (context?.Instance is Spine obj)
-            {
-                // 返回 AnimationNames 作为下拉选项
                 return new StandardValuesCollection(obj.AnimationNames);
-            }
-
             return base.GetStandardValues(context);
         }
     }

SpineViewer/SpineViewer.csproj

@@ -8,7 +8,7 @@
         <RuntimeIdentifier>win-x64</RuntimeIdentifier>
         <BaseOutputPath>$(SolutionDir)out</BaseOutputPath>
         <IncludeSourceRevisionInInformationalVersion>false</IncludeSourceRevisionInInformationalVersion>
-        <Version>0.10.0</Version>
+        <Version>0.10.1</Version>
         <OutputType>WinExe</OutputType>
         <UseWindowsForms>true</UseWindowsForms>
         <ApplicationIcon>appicon.ico</ApplicationIcon>