更新至v0.12.5

CHANGELOG.md

@@ -1,5 +1,15 @@
 # CHANGELOG
 
+## v0.12.4
+
+- 增加导出自动分辨率参数
+- 增加导出边缘和填充参数
+- 增加导出内容溢出参数
+- 支持3.7及以下版本多皮肤功能
+- 增加3.8版本的骨骼文件二进制和文本格式互转
+- 增加格式转换输出文件夹参数
+- 修改打开对话框的默认文件后缀筛选为所有类型
+
 ## v0.12.3
 
 - 增加按住 ctrl 缩放选中模型

README.md

@@ -12,7 +12,7 @@
 
 ---
 
-:sparkles: v0.12.x 新增功能: 支持多轨道动画以及多皮肤列表管理 :sparkles:
+:sparkles: `v0.12.5` 新特性: 支持自定义槽位附件 :sparkles:
 
 ---
 

SpineRuntimes/SpineRuntime21/Skeleton.cs

@@ -302,5 +302,50 @@ namespace SpineRuntime21 {
 		public void Update (float delta) {
 			time += delta;
 		}
-	}
+
+        public void GetBounds(out float x, out float y, out float width, out float height)
+        {
+            float[] temp = new float[8];
+            float minX = int.MaxValue, minY = int.MaxValue, maxX = int.MinValue, maxY = int.MinValue;
+            for (int i = 0, n = drawOrder.Count; i < n; i++)
+            {
+                Slot slot = drawOrder[i];
+                int verticesLength = 0;
+                float[] vertices = null;
+                Attachment attachment = slot.Attachment;
+				if (attachment is RegionAttachment regionAttachment)
+				{
+					verticesLength = 8;
+					vertices = temp;
+					if (vertices.Length < 8) vertices = temp = new float[8];
+					regionAttachment.ComputeWorldVertices(slot.Bone, temp);
+				}
+				else if (attachment is MeshAttachment meshAttachment)
+				{
+
+					MeshAttachment mesh = meshAttachment;
+					verticesLength = mesh.Vertices.Length;
+					vertices = temp;
+					if (vertices.Length < verticesLength) vertices = temp = new float[verticesLength];
+					mesh.ComputeWorldVertices(slot, temp);
+				}
+
+                if (vertices != null)
+                {
+                    for (int ii = 0; ii < verticesLength; ii += 2)
+                    {
+                        float vx = vertices[ii], vy = vertices[ii + 1];
+                        minX = Math.Min(minX, vx);
+                        minY = Math.Min(minY, vy);
+                        maxX = Math.Max(maxX, vx);
+                        maxY = Math.Max(maxY, vy);
+                    }
+                }
+            }
+			x = minX;
+			y = minY;
+			width = maxX - minX;
+			height = maxY - minY;
+        }
+    }
 }

SpineRuntimes/SpineRuntime21/Skin.cs

@@ -39,8 +39,9 @@ namespace SpineRuntime21 {
 			new Dictionary<KeyValuePair<int, String>, Attachment>(AttachmentComparer.Instance);
 
 		public String Name { get { return name; } }
+        public Dictionary<KeyValuePair<int, String>, Attachment> Attachments { get { return attachments; } }
 
-		public Skin (String name) {
+        public Skin (String name) {
 			if (name == null) throw new ArgumentNullException("name cannot be null.");
 			this.name = name;
 		}

SpineViewer/Controls/SkelFileListBox.Designer.cs

@@ -160,7 +160,7 @@
             // 
             openFileDialog_Skel.AddExtension = false;
             openFileDialog_Skel.AddToRecent = false;
-            openFileDialog_Skel.Filter = "skel 文件 (*.skel; *.json)|*.skel;*.json|二进制文件 (*.skel)|*.skel|文本文件 (*.json)|*.json|所有文件 (*.*)|*.*";
+            openFileDialog_Skel.Filter = "所有文件 (*.*)|*.*|skel 文件 (*.skel; *.json)|*.skel;*.json";
             openFileDialog_Skel.Multiselect = true;
             openFileDialog_Skel.Title = "批量选择skel文件";
             // 

SpineViewer/Controls/SpinePreviewPanel.cs

@@ -423,27 +423,17 @@ namespace SpineViewer.Controls
             if (renderWindow is null)
                 return;
 
-            float parentX = panel_Render.Parent.Width;
-            float parentY = panel_Render.Parent.Height;
-            float sizeX = panel_Render.Width;
-            float sizeY = panel_Render.Height;
-
-            if ((sizeY / sizeX) < (parentY / parentX))
-            {
-                // 相同的 X, 子窗口 Y 更小
-                sizeY = parentX * sizeY / sizeX;
-                sizeX = parentX;
-            }
-            else
-            {
-                // 相同的 Y, 子窗口 X 更小
-                sizeX = parentY * sizeX / sizeY;
-                sizeY = parentY;
-            }
+            float parentW = panel_Render.Parent.Width;
+            float parentH = panel_Render.Parent.Height;
+            float renderW = panel_Render.Width;
+            float renderH = panel_Render.Height;
+            float scale = Math.Min(parentW / renderW, parentH / renderH); // 两方向取较小值, 保证 parent 覆盖 render
+            renderH *= scale;
+            renderW *= scale;
 
             // 必须通过 SFML 的方法调整窗口
-            renderWindow.Position = new((int)(parentX - sizeX) / 2, (int)(parentY - sizeY) / 2);
-            renderWindow.Size = new((uint)sizeX, (uint)sizeY);
+            renderWindow.Position = new((int)(parentW - renderW) / 2, (int)(parentH - renderH) / 2);
+            renderWindow.Size = new((uint)renderW, (uint)renderH);
         }
 
         private void panel_Render_MouseDown(object sender, MouseEventArgs e)
@@ -475,7 +465,7 @@ namespace SpineViewer.Controls
                         foreach (int i in SpineListView.SelectedIndices)
                         {
                             if (spines[i].IsHidden) continue;
-                            if (!spines[i].Bounds.Contains(src)) continue;
+                            if (!spines[i].GetCurrentBounds().Contains(src)) continue;
                             hit = true;
                             break;
                         }
@@ -492,7 +482,7 @@ namespace SpineViewer.Controls
                             for (int i = 0; i < spines.Count; i++)
                             {
                                 if (spines[i].IsHidden) continue;
-                                if (!spines[i].Bounds.Contains(src)) continue;
+                                if (!spines[i].GetCurrentBounds().Contains(src)) continue;
 
                                 hit = true;
 
@@ -514,7 +504,7 @@ namespace SpineViewer.Controls
                             for (int i = 0; i < spines.Count; i++)
                             {
                                 if (spines[i].IsHidden) continue;
-                                if (!spines[i].Bounds.Contains(src)) continue;
+                                if (!spines[i].GetCurrentBounds().Contains(src)) continue;
 
                                 SpineListView.SelectedIndices.Add(i);
                                 break;

SpineViewer/Controls/SpineViewPropertyGrid.Designer.cs

@@ -39,8 +39,9 @@
             tabPage_Skin = new TabPage();
             propertyGrid_Skin = new PropertyGrid();
             contextMenuStrip_Skin = new ContextMenuStrip(components);
-            toolStripMenuItem_AddSkin = new ToolStripMenuItem();
-            toolStripMenuItem_RemoveSkin = new ToolStripMenuItem();
+            toolStripMenuItem_ReloadSkins = new ToolStripMenuItem();
+            tabPage_Slot = new TabPage();
+            propertyGrid_Slot = new PropertyGrid();
             tabPage_Animation = new TabPage();
             propertyGrid_Animation = new PropertyGrid();
             contextMenuStrip_Animation = new ContextMenuStrip(components);
@@ -54,6 +55,7 @@
             tabPage_Transform.SuspendLayout();
             tabPage_Skin.SuspendLayout();
             contextMenuStrip_Skin.SuspendLayout();
+            tabPage_Slot.SuspendLayout();
             tabPage_Animation.SuspendLayout();
             contextMenuStrip_Animation.SuspendLayout();
             tabPage_Debug.SuspendLayout();
@@ -66,6 +68,7 @@
             tabControl.Controls.Add(tabPage_Render);
             tabControl.Controls.Add(tabPage_Transform);
             tabControl.Controls.Add(tabPage_Skin);
+            tabControl.Controls.Add(tabPage_Slot);
             tabControl.Controls.Add(tabPage_Animation);
             tabControl.Controls.Add(tabPage_Debug);
             tabControl.Dock = DockStyle.Fill;
@@ -108,7 +111,7 @@
             tabPage_Render.Location = new Point(4, 4);
             tabPage_Render.Margin = new Padding(0);
             tabPage_Render.Name = "tabPage_Render";
-            tabPage_Render.Size = new Size(364, 380);
+            tabPage_Render.Size = new Size(364, 370);
             tabPage_Render.TabIndex = 1;
             tabPage_Render.Text = "渲染";
             // 
@@ -119,7 +122,7 @@
             propertyGrid_Render.Location = new Point(0, 0);
             propertyGrid_Render.Name = "propertyGrid_Render";
             propertyGrid_Render.PropertySort = PropertySort.Alphabetical;
-            propertyGrid_Render.Size = new Size(364, 380);
+            propertyGrid_Render.Size = new Size(364, 370);
             propertyGrid_Render.TabIndex = 1;
             propertyGrid_Render.ToolbarVisible = false;
             // 
@@ -130,7 +133,7 @@
             tabPage_Transform.Location = new Point(4, 4);
             tabPage_Transform.Margin = new Padding(0);
             tabPage_Transform.Name = "tabPage_Transform";
-            tabPage_Transform.Size = new Size(364, 380);
+            tabPage_Transform.Size = new Size(364, 370);
             tabPage_Transform.TabIndex = 2;
             tabPage_Transform.Text = "变换";
             // 
@@ -141,7 +144,7 @@
             propertyGrid_Transform.Location = new Point(0, 0);
             propertyGrid_Transform.Name = "propertyGrid_Transform";
             propertyGrid_Transform.PropertySort = PropertySort.Alphabetical;
-            propertyGrid_Transform.Size = new Size(364, 380);
+            propertyGrid_Transform.Size = new Size(364, 370);
             propertyGrid_Transform.TabIndex = 1;
             propertyGrid_Transform.ToolbarVisible = false;
             // 
@@ -152,7 +155,7 @@
             tabPage_Skin.Location = new Point(4, 4);
             tabPage_Skin.Margin = new Padding(0);
             tabPage_Skin.Name = "tabPage_Skin";
-            tabPage_Skin.Size = new Size(364, 380);
+            tabPage_Skin.Size = new Size(364, 370);
             tabPage_Skin.TabIndex = 3;
             tabPage_Skin.Text = "皮肤";
             // 
@@ -164,31 +167,45 @@
             propertyGrid_Skin.Location = new Point(0, 0);
             propertyGrid_Skin.Name = "propertyGrid_Skin";
             propertyGrid_Skin.PropertySort = PropertySort.NoSort;
-            propertyGrid_Skin.Size = new Size(364, 380);
+            propertyGrid_Skin.Size = new Size(364, 370);
             propertyGrid_Skin.TabIndex = 1;
             propertyGrid_Skin.ToolbarVisible = false;
             // 
             // contextMenuStrip_Skin
             // 
             contextMenuStrip_Skin.ImageScalingSize = new Size(24, 24);
-            contextMenuStrip_Skin.Items.AddRange(new ToolStripItem[] { toolStripMenuItem_AddSkin, toolStripMenuItem_RemoveSkin });
+            contextMenuStrip_Skin.Items.AddRange(new ToolStripItem[] { toolStripMenuItem_ReloadSkins });
             contextMenuStrip_Skin.Name = "contextMenuStrip1";
-            contextMenuStrip_Skin.Size = new Size(117, 64);
-            contextMenuStrip_Skin.Opening += contextMenuStrip_Skin_Opening;
+            contextMenuStrip_Skin.Size = new Size(225, 34);
             // 
-            // toolStripMenuItem_AddSkin
+            // toolStripMenuItem_ReloadSkins
             // 
-            toolStripMenuItem_AddSkin.Name = "toolStripMenuItem_AddSkin";
-            toolStripMenuItem_AddSkin.Size = new Size(116, 30);
-            toolStripMenuItem_AddSkin.Text = "添加";
-            toolStripMenuItem_AddSkin.Click += toolStripMenuItem_AddSkin_Click;
+            toolStripMenuItem_ReloadSkins.Name = "toolStripMenuItem_ReloadSkins";
+            toolStripMenuItem_ReloadSkins.Size = new Size(224, 30);
+            toolStripMenuItem_ReloadSkins.Text = "重新加载所选皮肤";
+            toolStripMenuItem_ReloadSkins.Click += toolStripMenuItem_ReloadSkins_Click;
             // 
-            // toolStripMenuItem_RemoveSkin
+            // tabPage_Slot
             // 
-            toolStripMenuItem_RemoveSkin.Name = "toolStripMenuItem_RemoveSkin";
-            toolStripMenuItem_RemoveSkin.Size = new Size(116, 30);
-            toolStripMenuItem_RemoveSkin.Text = "移除";
-            toolStripMenuItem_RemoveSkin.Click += toolStripMenuItem_RemoveSkin_Click;
+            tabPage_Slot.BackColor = SystemColors.Control;
+            tabPage_Slot.Controls.Add(propertyGrid_Slot);
+            tabPage_Slot.Location = new Point(4, 4);
+            tabPage_Slot.Margin = new Padding(0);
+            tabPage_Slot.Name = "tabPage_Slot";
+            tabPage_Slot.Size = new Size(364, 370);
+            tabPage_Slot.TabIndex = 6;
+            tabPage_Slot.Text = "插槽";
+            // 
+            // propertyGrid_Slot
+            // 
+            propertyGrid_Slot.Dock = DockStyle.Fill;
+            propertyGrid_Slot.HelpVisible = false;
+            propertyGrid_Slot.Location = new Point(0, 0);
+            propertyGrid_Slot.Name = "propertyGrid_Slot";
+            propertyGrid_Slot.PropertySort = PropertySort.Alphabetical;
+            propertyGrid_Slot.Size = new Size(364, 370);
+            propertyGrid_Slot.TabIndex = 2;
+            propertyGrid_Slot.ToolbarVisible = false;
             // 
             // tabPage_Animation
             // 
@@ -197,7 +214,7 @@
             tabPage_Animation.Location = new Point(4, 4);
             tabPage_Animation.Margin = new Padding(0);
             tabPage_Animation.Name = "tabPage_Animation";
-            tabPage_Animation.Size = new Size(364, 380);
+            tabPage_Animation.Size = new Size(364, 370);
             tabPage_Animation.TabIndex = 4;
             tabPage_Animation.Text = "动画";
             // 
@@ -209,7 +226,7 @@
             propertyGrid_Animation.Location = new Point(0, 0);
             propertyGrid_Animation.Name = "propertyGrid_Animation";
             propertyGrid_Animation.PropertySort = PropertySort.NoSort;
-            propertyGrid_Animation.Size = new Size(364, 380);
+            propertyGrid_Animation.Size = new Size(364, 370);
             propertyGrid_Animation.TabIndex = 1;
             propertyGrid_Animation.ToolbarVisible = false;
             // 
@@ -241,7 +258,7 @@
             tabPage_Debug.Controls.Add(propertyGrid_Debug);
             tabPage_Debug.Location = new Point(4, 4);
             tabPage_Debug.Name = "tabPage_Debug";
-            tabPage_Debug.Size = new Size(364, 380);
+            tabPage_Debug.Size = new Size(364, 370);
             tabPage_Debug.TabIndex = 5;
             tabPage_Debug.Text = "调试";
             // 
@@ -252,16 +269,16 @@
             propertyGrid_Debug.Location = new Point(0, 0);
             propertyGrid_Debug.Name = "propertyGrid_Debug";
             propertyGrid_Debug.PropertySort = PropertySort.NoSort;
-            propertyGrid_Debug.Size = new Size(364, 380);
+            propertyGrid_Debug.Size = new Size(364, 370);
             propertyGrid_Debug.TabIndex = 2;
             propertyGrid_Debug.ToolbarVisible = false;
             // 
-            // SpinePropertyGrid
+            // SpineViewPropertyGrid
             // 
             AutoScaleDimensions = new SizeF(11F, 24F);
             AutoScaleMode = AutoScaleMode.Font;
             Controls.Add(tabControl);
-            Name = "SpinePropertyGrid";
+            Name = "SpineViewPropertyGrid";
             Size = new Size(372, 448);
             tabControl.ResumeLayout(false);
             tabPage_BaseInfo.ResumeLayout(false);
@@ -269,6 +286,7 @@
             tabPage_Transform.ResumeLayout(false);
             tabPage_Skin.ResumeLayout(false);
             contextMenuStrip_Skin.ResumeLayout(false);
+            tabPage_Slot.ResumeLayout(false);
             tabPage_Animation.ResumeLayout(false);
             contextMenuStrip_Animation.ResumeLayout(false);
             tabPage_Debug.ResumeLayout(false);
@@ -290,11 +308,12 @@
         private PropertyGrid propertyGrid_Animation;
         private ContextMenuStrip contextMenuStrip_Skin;
         private ContextMenuStrip contextMenuStrip_Animation;
-        private ToolStripMenuItem toolStripMenuItem_AddSkin;
-        private ToolStripMenuItem toolStripMenuItem_RemoveSkin;
+        private ToolStripMenuItem toolStripMenuItem_ReloadSkins;
         private ToolStripMenuItem toolStripMenuItem_AddAnimation;
         private ToolStripMenuItem toolStripMenuItem_RemoveAnimation;
         private TabPage tabPage_Debug;
         private PropertyGrid propertyGrid_Debug;
+        private TabPage tabPage_Slot;
+        private PropertyGrid propertyGrid_Slot;
     }
 }

SpineViewer/Controls/SpineViewPropertyGrid.cs

@@ -34,6 +34,7 @@ namespace SpineViewer.Controls
                     propertyGrid_Render.SelectedObject = null;
                     propertyGrid_Transform.SelectedObject = null;
                     propertyGrid_Skin.SelectedObject = null;
+                    propertyGrid_Slot.SelectedObject = null;
                     propertyGrid_Animation.SelectedObject = null;
                     propertyGrid_Debug.SelectedObject = null;
                 }
@@ -44,6 +45,7 @@ namespace SpineViewer.Controls
                     propertyGrid_Render.SelectedObjects = value.Select(e => e.Render).ToArray();
                     propertyGrid_Transform.SelectedObjects = value.Select(e => e.Transform).ToArray();
                     propertyGrid_Skin.SelectedObjects = value.Select(e => e.Skin).ToArray();
+                    propertyGrid_Slot.SelectedObjects = value.Select(e => e.Slot).ToArray();
                     propertyGrid_Animation.SelectedObjects = value.Select(e => e.Animation).ToArray();
                     propertyGrid_Debug.SelectedObjects = value.Select(e => e.Debug).ToArray();
                 }
@@ -51,20 +53,6 @@ namespace SpineViewer.Controls
         }
         private SpineObjectProperty[]? selectedSpines = null;
 
-        private void contextMenuStrip_Skin_Opening(object sender, CancelEventArgs e)
-        {
-            if (selectedSpines?.Length == 1)
-            {
-                toolStripMenuItem_AddSkin.Enabled = true;
-                toolStripMenuItem_RemoveSkin.Enabled = propertyGrid_Skin.SelectedGridItem.Value is SkinNameProperty;
-            }
-            else
-            {
-                toolStripMenuItem_AddSkin.Enabled = false;
-                toolStripMenuItem_RemoveSkin.Enabled = false;
-            }
-        }
-
         private void contextMenuStrip_Animation_Opening(object sender, CancelEventArgs e)
         {
             if (selectedSpines?.Length == 1)
@@ -79,31 +67,10 @@ namespace SpineViewer.Controls
             }
         }
 
-        private void toolStripMenuItem_AddSkin_Click(object sender, EventArgs e)
+        private void toolStripMenuItem_ReloadSkins_Click(object sender, EventArgs e)
         {
-            if (selectedSpines?.Length != 1) return;
-
-            var spine = selectedSpines[0].Skin.Spine;
-
-            if (spine.SkinNames.Count <= 0)
-            {
-                MessagePopup.Info("没有可用的皮肤");
-                return;
-            }
-
-            spine.LoadSkin(spine.SkinNames[0]);
-            propertyGrid_Skin.Refresh();
-        }
-
-        private void toolStripMenuItem_RemoveSkin_Click(object sender, EventArgs e)
-        {
-            if (selectedSpines?.Length != 1) return;
-
-            if (propertyGrid_Skin.SelectedGridItem.Value is SkinNameProperty wrapper)
-            {
-                selectedSpines[0].Skin.Spine.UnloadSkin(wrapper.Index);
-                propertyGrid_Skin.Refresh();
-            }
+            foreach (var sp in selectedSpines)
+                sp.Spine.ReloadSkins();
         }
 
         private void toolStripMenuItem_AddAnimation_Click(object sender, EventArgs e)

SpineViewer/Dialogs/ConvertFileFormatDialog.Designer.cs

@@ -31,6 +31,7 @@
             System.ComponentModel.ComponentResourceManager resources = new System.ComponentModel.ComponentResourceManager(typeof(ConvertFileFormatDialog));
             panel = new Panel();
             tableLayoutPanel1 = new TableLayoutPanel();
+            label5 = new Label();
             comboBox_TargetVersion = new ComboBox();
             flowLayoutPanel_TargetFormat = new FlowLayoutPanel();
             radioButton_BinaryTarget = new RadioButton();
@@ -44,10 +45,15 @@
             button_Cancel = new Button();
             label2 = new Label();
             skelFileListBox = new SpineViewer.Controls.SkelFileListBox();
+            tableLayoutPanel3 = new TableLayoutPanel();
+            textBox_OutputDir = new TextBox();
+            button_SelectOutputDir = new Button();
+            folderBrowserDialog_Output = new FolderBrowserDialog();
             panel.SuspendLayout();
             tableLayoutPanel1.SuspendLayout();
             flowLayoutPanel_TargetFormat.SuspendLayout();
             tableLayoutPanel2.SuspendLayout();
+            tableLayoutPanel3.SuspendLayout();
             SuspendLayout();
             // 
             // panel
@@ -57,7 +63,7 @@
             panel.Location = new Point(0, 0);
             panel.Name = "panel";
             panel.Padding = new Padding(50, 15, 50, 10);
-            panel.Size = new Size(1051, 538);
+            panel.Size = new Size(1051, 702);
             panel.TabIndex = 2;
             // 
             // tableLayoutPanel1
@@ -65,34 +71,48 @@
             tableLayoutPanel1.ColumnCount = 2;
             tableLayoutPanel1.ColumnStyles.Add(new ColumnStyle());
             tableLayoutPanel1.ColumnStyles.Add(new ColumnStyle(SizeType.Percent, 100F));
-            tableLayoutPanel1.Controls.Add(comboBox_TargetVersion, 1, 3);
-            tableLayoutPanel1.Controls.Add(flowLayoutPanel_TargetFormat, 1, 4);
-            tableLayoutPanel1.Controls.Add(label1, 0, 3);
+            tableLayoutPanel1.Controls.Add(label5, 0, 2);
+            tableLayoutPanel1.Controls.Add(comboBox_TargetVersion, 1, 4);
+            tableLayoutPanel1.Controls.Add(flowLayoutPanel_TargetFormat, 1, 5);
+            tableLayoutPanel1.Controls.Add(label1, 0, 4);
             tableLayoutPanel1.Controls.Add(label4, 0, 0);
-            tableLayoutPanel1.Controls.Add(label3, 0, 2);
-            tableLayoutPanel1.Controls.Add(comboBox_SourceVersion, 1, 2);
-            tableLayoutPanel1.Controls.Add(tableLayoutPanel2, 0, 5);
-            tableLayoutPanel1.Controls.Add(label2, 0, 4);
+            tableLayoutPanel1.Controls.Add(label3, 0, 3);
+            tableLayoutPanel1.Controls.Add(comboBox_SourceVersion, 1, 3);
+            tableLayoutPanel1.Controls.Add(tableLayoutPanel2, 0, 6);
+            tableLayoutPanel1.Controls.Add(label2, 0, 5);
             tableLayoutPanel1.Controls.Add(skelFileListBox, 0, 1);
+            tableLayoutPanel1.Controls.Add(tableLayoutPanel3, 1, 2);
             tableLayoutPanel1.Dock = DockStyle.Fill;
             tableLayoutPanel1.Location = new Point(50, 15);
             tableLayoutPanel1.Name = "tableLayoutPanel1";
-            tableLayoutPanel1.RowCount = 6;
+            tableLayoutPanel1.RowCount = 7;
             tableLayoutPanel1.RowStyles.Add(new RowStyle());
             tableLayoutPanel1.RowStyles.Add(new RowStyle(SizeType.Percent, 100F));
             tableLayoutPanel1.RowStyles.Add(new RowStyle());
             tableLayoutPanel1.RowStyles.Add(new RowStyle());
             tableLayoutPanel1.RowStyles.Add(new RowStyle());
             tableLayoutPanel1.RowStyles.Add(new RowStyle());
-            tableLayoutPanel1.Size = new Size(951, 513);
+            tableLayoutPanel1.RowStyles.Add(new RowStyle());
+            tableLayoutPanel1.RowStyles.Add(new RowStyle(SizeType.Absolute, 20F));
+            tableLayoutPanel1.Size = new Size(951, 677);
             tableLayoutPanel1.TabIndex = 1;
             // 
+            // label5
+            // 
+            label5.Anchor = AnchorStyles.Left | AnchorStyles.Right;
+            label5.AutoSize = true;
+            label5.Location = new Point(3, 462);
+            label5.Name = "label5";
+            label5.Size = new Size(104, 24);
+            label5.TabIndex = 23;
+            label5.Text = "输出文件夹:";
+            // 
             // comboBox_TargetVersion
             // 
             comboBox_TargetVersion.Anchor = AnchorStyles.Left;
             comboBox_TargetVersion.DropDownStyle = ComboBoxStyle.DropDownList;
             comboBox_TargetVersion.FormattingEnabled = true;
-            comboBox_TargetVersion.Location = new Point(95, 365);
+            comboBox_TargetVersion.Location = new Point(113, 535);
             comboBox_TargetVersion.Name = "comboBox_TargetVersion";
             comboBox_TargetVersion.Size = new Size(182, 32);
             comboBox_TargetVersion.Sorted = true;
@@ -104,9 +124,10 @@
             flowLayoutPanel_TargetFormat.Controls.Add(radioButton_BinaryTarget);
             flowLayoutPanel_TargetFormat.Controls.Add(radioButton_JsonTarget);
             flowLayoutPanel_TargetFormat.Dock = DockStyle.Fill;
-            flowLayoutPanel_TargetFormat.Location = new Point(95, 403);
+            flowLayoutPanel_TargetFormat.Location = new Point(110, 570);
+            flowLayoutPanel_TargetFormat.Margin = new Padding(0);
             flowLayoutPanel_TargetFormat.Name = "flowLayoutPanel_TargetFormat";
-            flowLayoutPanel_TargetFormat.Size = new Size(853, 34);
+            flowLayoutPanel_TargetFormat.Size = new Size(841, 34);
             flowLayoutPanel_TargetFormat.TabIndex = 19;
             // 
             // radioButton_BinaryTarget
@@ -135,7 +156,7 @@
             // 
             label1.Anchor = AnchorStyles.Right;
             label1.AutoSize = true;
-            label1.Location = new Point(3, 369);
+            label1.Location = new Point(21, 539);
             label1.Name = "label1";
             label1.Size = new Size(86, 24);
             label1.TabIndex = 15;
@@ -151,14 +172,14 @@
             label4.Name = "label4";
             label4.Size = new Size(921, 24);
             label4.TabIndex = 14;
-            label4.Text = "说明：将在每个文件同级目录下生成目标格式后缀的文件，会覆盖已存在文件";
+            label4.Text = "说明：输出文件夹留空则在每个文件同级目录下生成目标格式后缀的文件，视情况会覆盖已存在文件";
             label4.TextAlign = ContentAlignment.MiddleCenter;
             // 
             // label3
             // 
             label3.Anchor = AnchorStyles.Right;
             label3.AutoSize = true;
-            label3.Location = new Point(21, 331);
+            label3.Location = new Point(39, 501);
             label3.Name = "label3";
             label3.Size = new Size(68, 24);
             label3.TabIndex = 12;
@@ -169,7 +190,7 @@
             comboBox_SourceVersion.Anchor = AnchorStyles.Left;
             comboBox_SourceVersion.DropDownStyle = ComboBoxStyle.DropDownList;
             comboBox_SourceVersion.FormattingEnabled = true;
-            comboBox_SourceVersion.Location = new Point(95, 327);
+            comboBox_SourceVersion.Location = new Point(113, 497);
             comboBox_SourceVersion.Name = "comboBox_SourceVersion";
             comboBox_SourceVersion.Size = new Size(182, 32);
             comboBox_SourceVersion.Sorted = true;
@@ -186,7 +207,7 @@
             tableLayoutPanel2.Controls.Add(button_Ok, 0, 0);
             tableLayoutPanel2.Controls.Add(button_Cancel, 1, 0);
             tableLayoutPanel2.Dock = DockStyle.Fill;
-            tableLayoutPanel2.Location = new Point(3, 470);
+            tableLayoutPanel2.Location = new Point(3, 634);
             tableLayoutPanel2.Margin = new Padding(3, 30, 3, 3);
             tableLayoutPanel2.Name = "tableLayoutPanel2";
             tableLayoutPanel2.RowCount = 1;
@@ -222,7 +243,7 @@
             // 
             label2.Anchor = AnchorStyles.Right;
             label2.AutoSize = true;
-            label2.Location = new Point(3, 408);
+            label2.Location = new Point(21, 575);
             label2.Name = "label2";
             label2.Size = new Size(86, 24);
             label2.TabIndex = 16;
@@ -234,16 +255,56 @@
             skelFileListBox.Dock = DockStyle.Fill;
             skelFileListBox.Location = new Point(3, 57);
             skelFileListBox.Name = "skelFileListBox";
-            skelFileListBox.Size = new Size(945, 264);
+            skelFileListBox.Size = new Size(945, 394);
             skelFileListBox.TabIndex = 20;
             // 
+            // tableLayoutPanel3
+            // 
+            tableLayoutPanel3.AutoSize = true;
+            tableLayoutPanel3.AutoSizeMode = AutoSizeMode.GrowAndShrink;
+            tableLayoutPanel3.ColumnCount = 3;
+            tableLayoutPanel3.ColumnStyles.Add(new ColumnStyle());
+            tableLayoutPanel3.ColumnStyles.Add(new ColumnStyle(SizeType.Percent, 100F));
+            tableLayoutPanel3.ColumnStyles.Add(new ColumnStyle());
+            tableLayoutPanel3.Controls.Add(textBox_OutputDir, 1, 0);
+            tableLayoutPanel3.Controls.Add(button_SelectOutputDir, 2, 0);
+            tableLayoutPanel3.Dock = DockStyle.Fill;
+            tableLayoutPanel3.Location = new Point(110, 454);
+            tableLayoutPanel3.Margin = new Padding(0);
+            tableLayoutPanel3.Name = "tableLayoutPanel3";
+            tableLayoutPanel3.RowCount = 1;
+            tableLayoutPanel3.RowStyles.Add(new RowStyle(SizeType.Percent, 100F));
+            tableLayoutPanel3.Size = new Size(841, 40);
+            tableLayoutPanel3.TabIndex = 22;
+            // 
+            // textBox_OutputDir
+            // 
+            textBox_OutputDir.Anchor = AnchorStyles.Left | AnchorStyles.Right;
+            textBox_OutputDir.Location = new Point(3, 5);
+            textBox_OutputDir.Name = "textBox_OutputDir";
+            textBox_OutputDir.Size = new Size(797, 30);
+            textBox_OutputDir.TabIndex = 1;
+            // 
+            // button_SelectOutputDir
+            // 
+            button_SelectOutputDir.Anchor = AnchorStyles.Left | AnchorStyles.Right;
+            button_SelectOutputDir.AutoSize = true;
+            button_SelectOutputDir.AutoSizeMode = AutoSizeMode.GrowAndShrink;
+            button_SelectOutputDir.Location = new Point(806, 3);
+            button_SelectOutputDir.Name = "button_SelectOutputDir";
+            button_SelectOutputDir.Size = new Size(32, 34);
+            button_SelectOutputDir.TabIndex = 2;
+            button_SelectOutputDir.Text = "...";
+            button_SelectOutputDir.UseVisualStyleBackColor = true;
+            button_SelectOutputDir.Click += button_SelectOutputDir_Click;
+            // 
             // ConvertFileFormatDialog
             // 
             AcceptButton = button_Ok;
             AutoScaleDimensions = new SizeF(11F, 24F);
             AutoScaleMode = AutoScaleMode.Font;
             CancelButton = button_Cancel;
-            ClientSize = new Size(1051, 538);
+            ClientSize = new Size(1051, 702);
             Controls.Add(panel);
             FormBorderStyle = FormBorderStyle.FixedDialog;
             Icon = (Icon)resources.GetObject("$this.Icon");
@@ -259,6 +320,8 @@
             flowLayoutPanel_TargetFormat.ResumeLayout(false);
             flowLayoutPanel_TargetFormat.PerformLayout();
             tableLayoutPanel2.ResumeLayout(false);
+            tableLayoutPanel3.ResumeLayout(false);
+            tableLayoutPanel3.PerformLayout();
             ResumeLayout(false);
         }
 
@@ -279,5 +342,10 @@
         private RadioButton radioButton_JsonTarget;
         private Controls.SkelFileListBox skelFileListBox;
         private ComboBox comboBox_TargetVersion;
+        private FolderBrowserDialog folderBrowserDialog_Output;
+        private TableLayoutPanel tableLayoutPanel3;
+        private TextBox textBox_OutputDir;
+        private Button button_SelectOutputDir;
+        private Label label5;
     }
 }

SpineViewer/Dialogs/ConvertFileFormatDialog.cs

@@ -1,4 +1,5 @@
-using SpineViewer.Spine;
+using NLog;
+using SpineViewer.Spine;
 using SpineViewer.Utils;
 using System;
 using System.Collections.Generic;
@@ -14,6 +15,8 @@ namespace SpineViewer.Dialogs
 {
     public partial class ConvertFileFormatDialog : Form
     {
+        private readonly Logger logger = LogManager.GetCurrentClassLogger();
+
         /// <summary>
         /// 对话框结果, 取消时为 null
         /// </summary>
@@ -37,8 +40,17 @@ namespace SpineViewer.Dialogs
             comboBox_TargetVersion.SelectedValue = SpineVersion.V38;
         }
 
+        private void button_SelectOutputDir_Click(object sender, EventArgs e)
+        {
+            if (folderBrowserDialog_Output.ShowDialog() != DialogResult.OK)
+                return;
+
+            textBox_OutputDir.Text = Path.GetFullPath(folderBrowserDialog_Output.SelectedPath);
+        }
+
         private void button_Ok_Click(object sender, EventArgs e)
         {
+            var outputDir = textBox_OutputDir.Text;
             var sourceVersion = (SpineVersion)comboBox_SourceVersion.SelectedValue;
             var targetVersion = (SpineVersion)comboBox_TargetVersion.SelectedValue;
             var jsonTarget = radioButton_JsonTarget.Checked;
@@ -51,6 +63,36 @@ namespace SpineViewer.Dialogs
                 return;
             }
 
+            if (string.IsNullOrWhiteSpace(outputDir))
+            {
+                outputDir = null;
+            }
+            else
+            {
+                outputDir = Path.GetFullPath(outputDir);
+                if (!Directory.Exists(outputDir))
+                {
+                    if (MessagePopup.Quest("输出文件夹不存在，是否创建？") == DialogResult.OK)
+                    {
+                        try
+                        {
+                            Directory.CreateDirectory(outputDir);
+                        }
+                        catch (Exception ex)
+                        {
+                            logger.Error(ex.ToString());
+                            logger.Error("Failed to create output dir {}", outputDir);
+                            MessagePopup.Error(ex.ToString());
+                            return;
+                        }
+                    }
+                    else
+                    {
+                        return;
+                    }
+                }
+            }
+
             foreach (string p in items)
             {
                 if (!File.Exists(p))
@@ -72,7 +114,7 @@ namespace SpineViewer.Dialogs
                 return;
             }
 
-            Result = new(items.Cast<string>().ToArray(), sourceVersion, targetVersion, jsonTarget);
+            Result = new(outputDir, items.Cast<string>().ToArray(), sourceVersion, targetVersion, jsonTarget);
             DialogResult = DialogResult.OK;
         }
 
@@ -85,8 +127,13 @@ namespace SpineViewer.Dialogs
     /// <summary>
     /// 文件格式转换对话框结果包装类
     /// </summary>
-    public class ConvertFileFormatDialogResult(string[] skelPaths, SpineVersion sourceVersion, SpineVersion targetVersion, bool jsonTarget)
+    public class ConvertFileFormatDialogResult(string? outputDir, string[] skelPaths, SpineVersion sourceVersion, SpineVersion targetVersion, bool jsonTarget)
     {
+        /// <summary>
+        /// 输出文件夹, 如果为空, 则将转换后的文件转换到各自的文件夹下
+        /// </summary>
+        public string? OutputDir => outputDir;
+
         /// <summary>
         /// 骨骼文件路径列表
         /// </summary>

SpineViewer/Dialogs/ConvertFileFormatDialog.resx

@@ -117,6 +117,9 @@
   <resheader name="writer">
     <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
   </resheader>
+  <metadata name="folderBrowserDialog_Output.TrayLocation" type="System.Drawing.Point, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
+    <value>36, 22</value>
+  </metadata>
   <assembly alias="System.Drawing" name="System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
   <data name="$this.Icon" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
     <value>

SpineViewer/Dialogs/ExportDialog.Designer.cs

@@ -47,7 +47,7 @@
             panel1.Location = new Point(0, 0);
             panel1.Name = "panel1";
             panel1.Padding = new Padding(50, 15, 50, 10);
-            panel1.Size = new Size(793, 754);
+            panel1.Size = new Size(793, 841);
             panel1.TabIndex = 2;
             // 
             // tableLayoutPanel1
@@ -65,7 +65,7 @@
             tableLayoutPanel1.RowStyles.Add(new RowStyle());
             tableLayoutPanel1.RowStyles.Add(new RowStyle(SizeType.Absolute, 20F));
             tableLayoutPanel1.RowStyles.Add(new RowStyle(SizeType.Absolute, 20F));
-            tableLayoutPanel1.Size = new Size(693, 729);
+            tableLayoutPanel1.Size = new Size(693, 816);
             tableLayoutPanel1.TabIndex = 0;
             // 
             // propertyGrid_ExportArgs
@@ -74,7 +74,7 @@
             propertyGrid_ExportArgs.Location = new Point(3, 3);
             propertyGrid_ExportArgs.Name = "propertyGrid_ExportArgs";
             propertyGrid_ExportArgs.PropertySort = PropertySort.Categorized;
-            propertyGrid_ExportArgs.Size = new Size(687, 650);
+            propertyGrid_ExportArgs.Size = new Size(687, 737);
             propertyGrid_ExportArgs.TabIndex = 1;
             propertyGrid_ExportArgs.ToolbarVisible = false;
             // 
@@ -88,7 +88,7 @@
             tableLayoutPanel2.Controls.Add(button_Ok, 0, 0);
             tableLayoutPanel2.Controls.Add(button_Cancel, 1, 0);
             tableLayoutPanel2.Dock = DockStyle.Bottom;
-            tableLayoutPanel2.Location = new Point(3, 686);
+            tableLayoutPanel2.Location = new Point(3, 773);
             tableLayoutPanel2.Margin = new Padding(3, 30, 3, 3);
             tableLayoutPanel2.Name = "tableLayoutPanel2";
             tableLayoutPanel2.RowCount = 1;
@@ -126,7 +126,7 @@
             AutoScaleDimensions = new SizeF(11F, 24F);
             AutoScaleMode = AutoScaleMode.Font;
             CancelButton = button_Cancel;
-            ClientSize = new Size(793, 754);
+            ClientSize = new Size(793, 841);
             Controls.Add(panel1);
             Icon = (Icon)resources.GetObject("$this.Icon");
             MaximizeBox = false;

SpineViewer/Dialogs/OpenSpineDialog.Designer.cs

@@ -232,14 +232,14 @@
             // 
             openFileDialog_Skel.AddExtension = false;
             openFileDialog_Skel.AddToRecent = false;
-            openFileDialog_Skel.Filter = "skel 文件 (*.skel; *.json)|*.skel;*.json|二进制文件 (*.skel)|*.skel|文本文件 (*.json)|*.json|所有文件 (*.*)|*.*";
+            openFileDialog_Skel.Filter = "所有文件 (*.*)|*.*|skel 文件 (*.skel; *.json)|*.skel;*.json";
             openFileDialog_Skel.Title = "选择skel文件";
             // 
             // openFileDialog_Atlas
             // 
             openFileDialog_Atlas.AddExtension = false;
             openFileDialog_Atlas.AddToRecent = false;
-            openFileDialog_Atlas.Filter = "atlas 文件 (*.atlas)|*.atlas|所有文件 (*.*)|*.*";
+            openFileDialog_Atlas.Filter = "所有文件 (*.*)|*.*|atlas 文件 (*.atlas)|*.atlas";
             openFileDialog_Atlas.Title = "选择atlas文件";
             // 
             // OpenSpineDialog

SpineViewer/Extensions/SFMLExtension.cs

@@ -8,6 +8,51 @@ namespace SpineViewer.Extensions
 {
     public static class SFMLExtension
     {
+        /// <summary>
+        /// 获取并集范围
+        /// </summary>
+        public static RectangleF Union(this RectangleF bounds, RectangleF other)
+        {
+            var x = Math.Min(bounds.X, other.X);
+            var y = Math.Min(bounds.Y, other.Y);
+            var w = Math.Max(bounds.Right, other.Right) - x;
+            var h = Math.Max(bounds.Bottom, other.Bottom) - y;
+            return new(x, y, w, h);
+        }
+
+        /// <summary>
+        /// 获取适合指定画布参数下能够覆盖包围盒的画布视区包围盒
+        /// </summary>
+        public static RectangleF GetCanvasBounds(this RectangleF bounds, Size resolution) => GetCanvasBounds(bounds, resolution, new(0), new(0));
+
+        /// <summary>
+        /// 获取适合指定画布参数下能够覆盖包围盒的画布视区包围盒
+        /// </summary>
+        public static RectangleF GetCanvasBounds(this RectangleF bounds, Size resolution, Padding margin) => GetCanvasBounds(bounds, resolution, margin, new(0));
+
+        /// <summary>
+        /// 获取适合指定画布参数下能够覆盖包围盒的画布视区包围盒
+        /// </summary>
+        public static RectangleF GetCanvasBounds(this RectangleF bounds, Size resolution, Padding margin, Padding padding)
+        {
+            float sizeW = bounds.Width;
+            float sizeH = bounds.Height;
+            float innerW = resolution.Width - padding.Horizontal;
+            float innerH = resolution.Height - padding.Vertical;
+            float scale = Math.Max(Math.Abs(sizeW / innerW), Math.Abs(sizeH / innerH)); // 取两方向上较大的缩放比, 以此让画布可以覆盖内容
+            float scaleW = scale * Math.Sign(sizeW);
+            float scaleH = scale * Math.Sign(sizeH);
+
+            innerW *= scaleW;
+            innerH *= scaleH;
+
+            var x = bounds.X - (innerW - sizeW) / 2 - (margin.Left + padding.Left) * scaleW;
+            var y = bounds.Y - (innerH - sizeH) / 2 - (margin.Top + padding.Top) * scaleH;
+            var w = (resolution.Width + margin.Horizontal) * scaleW;
+            var h = (resolution.Height + margin.Vertical) * scaleH;
+            return new(x, y, w, h);
+        }
+
         /// <summary>
         /// 获取 Winforms Bitmap 对象, 需要使用 Dispose 释放对象
         /// </summary>
@@ -29,45 +74,45 @@ namespace SpineViewer.Extensions
         }
 
         /// <summary>
-        /// 获取某个包围盒下合适的视图
+        /// 获取视区的包围盒
         /// </summary>
-        public static SFML.Graphics.View GetView(this RectangleF bounds, Size resolution, Padding padding)
-            => bounds.GetView((uint)resolution.Width, (uint)resolution.Height, (uint)padding.Left, (uint)padding.Right, (uint)padding.Top, (uint)padding.Bottom);
-
-        /// <summary>
-        /// 获取某个包围盒下合适的视图
-        /// </summary>
-        public static SFML.Graphics.View GetView(this RectangleF bounds, uint width, uint height, Padding padding)
-            => bounds.GetView(width, height, (uint)padding.Left, (uint)padding.Right, (uint)padding.Top, (uint)padding.Bottom);
-
-        /// <summary>
-        /// 获取某个包围盒下合适的视图
-        /// </summary>
-        public static SFML.Graphics.View GetView(this RectangleF bounds, Size resolution, uint paddingL = 1, uint paddingR = 1, uint paddingT = 1, uint paddingB = 1)
-            => bounds.GetView((uint)resolution.Width, (uint)resolution.Height, paddingL, paddingR, paddingT, paddingB);
-
-        /// <summary>
-        /// 获取某个包围盒下合适的视图
-        /// </summary>
-        public static SFML.Graphics.View GetView(this RectangleF bounds, uint width, uint height, uint paddingL = 1, uint paddingR = 1, uint paddingT = 1, uint paddingB = 1)
+        public static RectangleF GetBounds(this SFML.Graphics.View view)
         {
-            float sizeX = bounds.Width;
-            float sizeY = bounds.Height;
-            float innerW = width - paddingL - paddingR;
-            float innerH = height - paddingT - paddingB;
+            return new(
+                view.Center.X - view.Size.X / 2, 
+                view.Center.Y - view.Size.Y / 2, 
+                view.Size.X, 
+                view.Size.Y
+            );
+        }
 
-            float scale = 1;
-            if (sizeY / sizeX < innerH / innerW)
-                scale = sizeX / innerW; // 相同的 X, 视窗 Y 更大
-            else
-                scale = sizeY / innerH; // 相同的 Y, 视窗 X 更大
+        /// <summary>
+        /// 按画布设置视区, 边缘和填充区域将不会出现内容
+        /// </summary>
+        public static void SetViewport(this SFML.Graphics.View view, Size resolution, Padding margin) => SetViewport(view, resolution, margin, new(0));
 
-            var x = bounds.X + bounds.Width / 2 + (paddingL - (float)paddingR) * scale;
-            var y = bounds.Y + bounds.Height / 2 + (paddingT - (float)paddingB) * scale;
-            var viewX = width * scale;
-            var viewY = height * scale;
+        /// <summary>
+        /// 按画布设置视区, 边缘和填充区域将不会出现内容
+        /// </summary>
+        public static void SetViewport(this SFML.Graphics.View view, Size resolution, Padding margin, Padding padding)
+        {
+            var innerW = resolution.Width - padding.Horizontal;
+            var innerH = resolution.Height - padding.Vertical;
 
-            return new(new(x, y), new(viewX, -viewY));
+            float width = resolution.Width + margin.Horizontal;
+            float height = resolution.Height + margin.Vertical;
+
+            view.Viewport = new(
+                (margin.Left + padding.Left) / width,
+                (margin.Top + padding.Top) / height,
+                innerW / width,
+                innerH / height
+            );
+
+            var bounds = view.GetBounds().GetCanvasBounds(new(innerW, innerH));
+
+            view.Center = new(bounds.X + bounds.Width / 2, bounds.Y + bounds.Height / 2);
+            view.Size = new(bounds.Width, bounds.Height);
         }
     }
 }

SpineViewer/Forms/SpineViewerForm.cs

@@ -92,8 +92,9 @@ namespace SpineViewer
             if (!exporterCache.ContainsKey(k)) exporterCache[k] = new FrameExporter();
 
             var exporter = exporterCache[k];
+            using var view = spinePreviewPanel.GetView();
             exporter.Resolution = spinePreviewPanel.Resolution;
-            exporter.View = spinePreviewPanel.GetView();
+            exporter.PreviewerView = view;
             exporter.RenderSelectedOnly = spinePreviewPanel.RenderSelectedOnly;
 
             var exportDialog = new Dialogs.ExportDialog(new FrameExporterProperty((FrameExporter)exporter));
@@ -112,8 +113,9 @@ namespace SpineViewer
             if (!exporterCache.ContainsKey(k)) exporterCache[k] = new FrameSequenceExporter();
 
             var exporter = exporterCache[k];
+            using var view = spinePreviewPanel.GetView();
             exporter.Resolution = spinePreviewPanel.Resolution;
-            exporter.View = spinePreviewPanel.GetView();
+            exporter.PreviewerView = view;
             exporter.RenderSelectedOnly = spinePreviewPanel.RenderSelectedOnly;
 
             var exportDialog = new Dialogs.ExportDialog(new FrameSequenceExporterProperty((FrameSequenceExporter)exporter));
@@ -132,8 +134,9 @@ namespace SpineViewer
             if (!exporterCache.ContainsKey(k)) exporterCache[k] = new GifExporter();
 
             var exporter = exporterCache[k];
+            using var view = spinePreviewPanel.GetView();
             exporter.Resolution = spinePreviewPanel.Resolution;
-            exporter.View = spinePreviewPanel.GetView();
+            exporter.PreviewerView = view;
             exporter.RenderSelectedOnly = spinePreviewPanel.RenderSelectedOnly;
 
             var exportDialog = new Dialogs.ExportDialog(new GifExporterProperty((GifExporter)exporter));
@@ -152,8 +155,9 @@ namespace SpineViewer
             if (!exporterCache.ContainsKey(k)) exporterCache[k] = new WebpExporter();
 
             var exporter = exporterCache[k];
+            using var view = spinePreviewPanel.GetView();
             exporter.Resolution = spinePreviewPanel.Resolution;
-            exporter.View = spinePreviewPanel.GetView();
+            exporter.PreviewerView = view;
             exporter.RenderSelectedOnly = spinePreviewPanel.RenderSelectedOnly;
 
             var exportDialog = new Dialogs.ExportDialog(new WebpExporterProperty((WebpExporter)exporter));
@@ -172,8 +176,9 @@ namespace SpineViewer
             if (!exporterCache.ContainsKey(k)) exporterCache[k] = new AvifExporter();
 
             var exporter = exporterCache[k];
+            using var view = spinePreviewPanel.GetView();
             exporter.Resolution = spinePreviewPanel.Resolution;
-            exporter.View = spinePreviewPanel.GetView();
+            exporter.PreviewerView = view;
             exporter.RenderSelectedOnly = spinePreviewPanel.RenderSelectedOnly;
 
             var exportDialog = new Dialogs.ExportDialog(new AvifExporterProperty((AvifExporter)exporter));
@@ -192,8 +197,9 @@ namespace SpineViewer
             if (!exporterCache.ContainsKey(k)) exporterCache[k] = new Mp4Exporter();
 
             var exporter = exporterCache[k];
+            using var view = spinePreviewPanel.GetView();
             exporter.Resolution = spinePreviewPanel.Resolution;
-            exporter.View = spinePreviewPanel.GetView();
+            exporter.PreviewerView = view;
             exporter.RenderSelectedOnly = spinePreviewPanel.RenderSelectedOnly;
 
             var exportDialog = new Dialogs.ExportDialog(new Mp4ExporterProperty((Mp4Exporter)exporter));
@@ -212,8 +218,9 @@ namespace SpineViewer
             if (!exporterCache.ContainsKey(k)) exporterCache[k] = new WebmExporter();
 
             var exporter = exporterCache[k];
+            using var view = spinePreviewPanel.GetView();
             exporter.Resolution = spinePreviewPanel.Resolution;
-            exporter.View = spinePreviewPanel.GetView();
+            exporter.PreviewerView = view;
             exporter.RenderSelectedOnly = spinePreviewPanel.RenderSelectedOnly;
 
             var exportDialog = new Dialogs.ExportDialog(new WebmExporterProperty((WebmExporter)exporter));
@@ -232,8 +239,9 @@ namespace SpineViewer
             if (!exporterCache.ContainsKey(k)) exporterCache[k] = new MkvExporter();
 
             var exporter = exporterCache[k];
+            using var view = spinePreviewPanel.GetView();
             exporter.Resolution = spinePreviewPanel.Resolution;
-            exporter.View = spinePreviewPanel.GetView();
+            exporter.PreviewerView = view;
             exporter.RenderSelectedOnly = spinePreviewPanel.RenderSelectedOnly;
 
             var exportDialog = new Dialogs.ExportDialog(new MkvExporterProperty((MkvExporter)exporter));
@@ -252,8 +260,9 @@ namespace SpineViewer
             if (!exporterCache.ContainsKey(k)) exporterCache[k] = new MovExporter();
 
             var exporter = exporterCache[k];
+            using var view = spinePreviewPanel.GetView();
             exporter.Resolution = spinePreviewPanel.Resolution;
-            exporter.View = spinePreviewPanel.GetView();
+            exporter.PreviewerView = view;
             exporter.RenderSelectedOnly = spinePreviewPanel.RenderSelectedOnly;
 
             var exportDialog = new Dialogs.ExportDialog(new MovExporterProperty((MovExporter)exporter));
@@ -272,8 +281,9 @@ namespace SpineViewer
             if (!exporterCache.ContainsKey(k)) exporterCache[k] = new CustomExporter();
 
             var exporter = exporterCache[k];
+            using var view = spinePreviewPanel.GetView();
             exporter.Resolution = spinePreviewPanel.Resolution;
-            exporter.View = spinePreviewPanel.GetView();
+            exporter.PreviewerView = view;
             exporter.RenderSelectedOnly = spinePreviewPanel.RenderSelectedOnly;
 
             var exportDialog = new Dialogs.ExportDialog(new CustomExporterProperty((CustomExporter)exporter));
@@ -347,19 +357,15 @@ namespace SpineViewer
         private void ConvertFileFormat_Work(object? sender, DoWorkEventArgs e)
         {
             var worker = sender as BackgroundWorker;
-            var arguments = e.Argument as Dialogs.ConvertFileFormatDialogResult;
-            var skelPaths = arguments.SkelPaths;
-            var srcVersion = arguments.SourceVersion;
-            var tgtVersion = arguments.TargetVersion;
-            var jsonTarget = arguments.JsonTarget;
-            var newSuffix = jsonTarget ? ".json" : ".skel";
+            var args = e.Argument as Dialogs.ConvertFileFormatDialogResult;
+            var newSuffix = args.JsonTarget ? ".json" : ".skel";
 
-            int totalCount = skelPaths.Length;
+            int totalCount = args.SkelPaths.Length;
             int success = 0;
             int error = 0;
 
-            SkeletonConverter srcCvter = srcVersion != SpineVersion.Auto ? SkeletonConverter.New(srcVersion) : null;
-            SkeletonConverter tgtCvter = SkeletonConverter.New(tgtVersion);
+            SkeletonConverter srcCvter = args.SourceVersion != SpineVersion.Auto ? SkeletonConverter.New(args.SourceVersion) : null;
+            SkeletonConverter tgtCvter = SkeletonConverter.New(args.TargetVersion);
 
             worker.ReportProgress(0, $"已处理 0/{totalCount}");
             for (int i = 0; i < totalCount; i++)
@@ -370,12 +376,13 @@ namespace SpineViewer
                     break;
                 }
 
-                var skelPath = skelPaths[i];
+                var skelPath = args.SkelPaths[i];
                 var newPath = Path.ChangeExtension(skelPath, newSuffix);
+                if (args.OutputDir is string outputDir) newPath = Path.Combine(outputDir, Path.GetFileName(newPath));
 
                 try
                 {
-                    if (srcVersion == SpineVersion.Auto)
+                    if (args.SourceVersion == SpineVersion.Auto)
                     {
                         try
                         {
@@ -387,8 +394,9 @@ namespace SpineViewer
                         }
                     }
                     var root = srcCvter.Read(skelPath);
-                    root = srcCvter.ToVersion(root, tgtVersion);
-                    if (jsonTarget) tgtCvter.WriteJson(root, newPath); else tgtCvter.WriteBinary(root, newPath);
+                    root = srcCvter.ToVersion(root, args.TargetVersion);
+                    if (args.JsonTarget) tgtCvter.WriteJson(root, newPath); 
+                    else tgtCvter.WriteBinary(root, newPath);
                     success++;
                 }
                 catch (Exception ex)

SpineViewer/Spine/Implementations/SkeletonConverter/SkeletonConverter38.cs

@@ -12,8 +12,45 @@ using System.Globalization;
 namespace SpineViewer.Spine.Implementations.SkeletonConverter
 {
     [SpineImplementation(SpineVersion.V38)]
-    class SkeletonConverter38 : SpineViewer.Spine.SkeletonConverter
+    public class SkeletonConverter38 : Spine.SkeletonConverter
     {
+        private static readonly Dictionary<TransformMode, string> TransformModeJsonValue = new()
+        {
+            [TransformMode.Normal] = "normal",
+            [TransformMode.OnlyTranslation] = "onlyTranslation",
+            [TransformMode.NoRotationOrReflection] = "noRotationOrReflection",
+            [TransformMode.NoScale] = "noScale",
+            [TransformMode.NoScaleOrReflection] = "noScaleOrReflection",
+        };
+
+        private static readonly Dictionary<BlendMode, string> BlendModeJsonValue = new()
+        {
+            [BlendMode.Normal] = "normal",
+            [BlendMode.Additive] = "additive",
+            [BlendMode.Multiply] = "multiply",
+            [BlendMode.Screen] = "screen",
+        };
+
+        private static readonly Dictionary<PositionMode, string> PositionModeJsonValue = new()
+        {
+            [PositionMode.Fixed] = "fixed",
+            [PositionMode.Percent] = "percent",
+        };
+
+        private static readonly Dictionary<SpacingMode, string> SpacingModeJsonValue = new()
+        {
+            [SpacingMode.Length] = "length",
+            [SpacingMode.Fixed] = "fixed",
+            [SpacingMode.Percent] = "percent",
+        };
+
+        private static readonly Dictionary<RotateMode, string> RotateModeJsonValue = new()
+        {
+            [RotateMode.Tangent] = "tangent",
+            [RotateMode.Chain] = "chain",
+            [RotateMode.ChainScale] = "chainScale",
+        };
+
         private BinaryReader reader = null;
         private JsonObject root = null;
         private bool nonessential = false;
@@ -44,6 +81,9 @@ namespace SpineViewer.Spine.Implementations.SkeletonConverter
 
             idx2event.Clear();
 
+            // 清理临时属性
+            foreach (var (_, data) in root["events"].AsObject()) data.AsObject().Remove("__name__");
+
             return root;
         }
 
@@ -90,7 +130,7 @@ namespace SpineViewer.Spine.Implementations.SkeletonConverter
                 data["shearX"] = reader.ReadFloat();
                 data["shearY"] = reader.ReadFloat();
                 data["length"] = reader.ReadFloat();
-                data["transform"] = SkeletonBinary.TransformModeValues[reader.ReadVarInt()].ToString();
+                data["transform"] = TransformModeJsonValue[SkeletonBinary.TransformModeValues[reader.ReadVarInt()]];
                 data["skin"] = reader.ReadBoolean();
                 if (nonessential) reader.ReadInt();
                 bones.Add(data);
@@ -111,7 +151,7 @@ namespace SpineViewer.Spine.Implementations.SkeletonConverter
                 int dark = reader.ReadInt();
                 if (dark != -1) data["dark"] = dark.ToString("x6"); // 0x00rrggbb -> rrggbb
                 data["attachment"] = reader.ReadStringRef();
-                data["blend"] = ((BlendMode)reader.ReadVarInt()).ToString();
+                data["blend"] = BlendModeJsonValue[((BlendMode)reader.ReadVarInt())];
                 slots.Add(data);
             }
             root["slots"] = slots;
@@ -181,9 +221,9 @@ namespace SpineViewer.Spine.Implementations.SkeletonConverter
                 data["skin"] = reader.ReadBoolean();
                 data["bones"] = ReadNames(bones);
                 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();
+                data["positionMode"] = PositionModeJsonValue[((PositionMode)reader.ReadVarInt())];
+                data["spacingMode"] = SpacingModeJsonValue[((SpacingMode)reader.ReadVarInt())];
+                data["rotateMode"] = RotateModeJsonValue[((RotateMode)reader.ReadVarInt())];
                 data["rotation"] = reader.ReadFloat();
                 data["position"] = reader.ReadFloat();
                 data["spacing"] = reader.ReadFloat();
@@ -283,7 +323,7 @@ namespace SpineViewer.Spine.Implementations.SkeletonConverter
                     if (path is not null) attachment["path"] = path;
                     attachment["color"] = reader.ReadInt().ToString("x8");
                     vertexCount = reader.ReadVarInt();
-                    attachment["uvs"] = ReadFloatArray(vertexCount << 1); // vertexCount = uvs.Length
+                    attachment["uvs"] = ReadFloatArray(vertexCount << 1); // vertexCount = uvs.Length >> 1
                     attachment["triangles"] = ReadShortArray();
                     attachment["vertices"] = ReadVertices(vertexCount);
                     attachment["hull"] = reader.ReadVarInt();
@@ -348,7 +388,7 @@ namespace SpineViewer.Spine.Implementations.SkeletonConverter
                 JsonObject data = [];
                 var name = reader.ReadStringRef();
                 events[name] = data;
-                data["name"] = name; // 额外增加的, 方便后面查找
+                data["__name__"] = name; // 数据里是不应该有这个字段的, 但是为了 ReadEventTimelines 里能够提供 name 字段, 临时增加了一下
                 data["int"] = reader.ReadVarInt(false);
                 data["float"] = reader.ReadFloat();
                 data["string"] = reader.ReadString();
@@ -376,7 +416,7 @@ namespace SpineViewer.Spine.Implementations.SkeletonConverter
                 if (ReadTransformTimelines() is JsonObject transform) data["transform"] = transform;
                 if (ReadPathTimelines() is JsonObject path) data["path"] = path;
                 if (ReadDeformTimelines() is JsonObject deform) data["deform"] = deform;
-                if (ReadDrawOrderTimelines() is JsonArray draworder) data["drawOrder"] = draworder;
+                if (ReadDrawOrderTimelines() is JsonArray draworder) data["draworder"] = draworder;
                 if (ReadEventTimelines() is JsonArray events) data["events"] = events;
             }
             root["animations"] = animations;
@@ -592,7 +632,7 @@ namespace SpineViewer.Spine.Implementations.SkeletonConverter
                 for (int timelineCount = reader.ReadVarInt(); timelineCount > 0; timelineCount--)
                 {
                     JsonArray frames = [];
-                    var type = reader.ReadByte();
+                    var type = reader.ReadSByte();
                     var frameCount = reader.ReadVarInt();
                     switch (type)
                     {
@@ -600,11 +640,13 @@ namespace SpineViewer.Spine.Implementations.SkeletonConverter
                             timeline["position"] = frames;
                             while (frameCount-- > 0)
                             {
-                                frames.Add(new JsonObject()
+                                var o = new JsonObject()
                                 {
                                     ["time"] = reader.ReadFloat(),
                                     ["position"] = reader.ReadFloat(),
-                                });
+                                };
+                                if (frameCount > 0) ReadCurve(o);
+                                frames.Add(o);
                             }
                             break;
                         case SkeletonBinary.PATH_SPACING:
@@ -671,8 +713,7 @@ namespace SpineViewer.Spine.Implementations.SkeletonConverter
                             var end = reader.ReadVarInt();
                             if (end > 0)
                             {
-                                var start = reader.ReadVarInt();
-                                o["offset"] = start;
+                                o["offset"] = reader.ReadVarInt();
                                 o["vertices"] = ReadFloatArray(end);
                             }
                             if (frameCount > 0) ReadCurve(o);
@@ -719,14 +760,14 @@ namespace SpineViewer.Spine.Implementations.SkeletonConverter
                 JsonObject data = [];
                 data["time"] = reader.ReadFloat();
                 JsonObject eventData = idx2event[reader.ReadVarInt()].AsObject();
-                data["name"] = (string)eventData["name"];
+                data["name"] = (string)eventData["__name__"];
                 data["int"] = reader.ReadVarInt();
                 data["float"] = reader.ReadFloat();
-                data["string"] = reader.ReadBoolean() ? reader.ReadString() : (string)eventData["string"];
+                if (reader.ReadBoolean()) data["string"] = reader.ReadString();
                 if (eventData.ContainsKey("audio"))
                 {
-                    data["volume"] = (string)eventData["volume"];
-                    data["balance"] = (string)eventData["balance"];
+                    data["volume"] = reader.ReadFloat();
+                    data["balance"] = reader.ReadFloat();
                 }
                 eventTimelines.Add(data);
             }
@@ -785,10 +826,6 @@ namespace SpineViewer.Spine.Implementations.SkeletonConverter
             switch (type)
             {
                 case SkeletonBinary.CURVE_LINEAR:
-                    obj["curve"] = 1 / 3f;
-                    obj["c2"] = 1 / 3f;
-                    obj["c3"] = 2 / 3f;
-                    obj["c4"] = 2 / 3f;
                     break;
                 case SkeletonBinary.CURVE_STEPPED:
                     obj["curve"] = "stepped";
@@ -810,6 +847,7 @@ namespace SpineViewer.Spine.Implementations.SkeletonConverter
         private readonly Dictionary<string, int> ik2idx = [];
         private readonly Dictionary<string, int> transform2idx = [];
         private readonly Dictionary<string, int> path2idx = [];
+        private readonly Dictionary<string, int> skin2idx = [];
         private readonly Dictionary<string, int> event2idx = [];
 
         public override void WriteBinary(JsonObject root, string binPath, bool nonessential = false)
@@ -818,7 +856,7 @@ namespace SpineViewer.Spine.Implementations.SkeletonConverter
             this.root = root;
 
             using var outputBody = new MemoryStream(); // 先把主体写入内存缓冲区
-            writer = new(outputBody);
+            BinaryWriter tmpWriter = writer = new (outputBody);
 
             WriteBones();
             WriteSlots();
@@ -828,16 +866,28 @@ namespace SpineViewer.Spine.Implementations.SkeletonConverter
             WriteSkins();
             WriteEvents();
             WriteAnimations();
-            
-            //using var output = File.Create(binPath); // 将数据写入文件
-            //writer = new(output);
+
+            using var output = File.Create(binPath); // 将数据写入文件
+            writer = new(output);
+
+            // 把字符串表保留过来
+            writer.StringTable.AddRange(tmpWriter.StringTable);
 
             WriteSkeleton();
             WriteStrings();
-            //output.Write(outputBody.GetBuffer());
+            outputBody.Seek(0, SeekOrigin.Begin);
+            outputBody.CopyTo(output);
 
             writer = null;
             this.root = null;
+
+            bone2idx.Clear();
+            slot2idx.Clear();
+            ik2idx.Clear();
+            transform2idx.Clear();
+            path2idx.Clear();
+            skin2idx.Clear();
+            event2idx.Clear();
         }
 
         private void WriteSkeleton()
@@ -890,7 +940,7 @@ namespace SpineViewer.Spine.Implementations.SkeletonConverter
                 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("transform", out var transform)) writer.WriteVarInt(Array.IndexOf(SkeletonBinary.TransformModeValues, Enum.Parse<TransformMode>((string)transform, true))); else writer.WriteVarInt(0);
                 if (data.TryGetPropertyValue("skin", out var skin)) writer.WriteBoolean((bool)skin); else writer.WriteBoolean(false);
                 if (nonessential) writer.WriteInt(0);
                 bone2idx[name] = i;
@@ -912,7 +962,7 @@ namespace SpineViewer.Spine.Implementations.SkeletonConverter
                 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("color", out var color)) writer.WriteInt(int.Parse((string)color, NumberStyles.HexNumber)); else writer.WriteInt(-1); // 默认值是全 255
                 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);
@@ -1018,6 +1068,7 @@ namespace SpineViewer.Spine.Implementations.SkeletonConverter
             {
                 writer.WriteVarInt(0); // default 的 slotCount
                 writer.WriteVarInt(0); // 其他皮肤数量
+                skin2idx["default"] = skin2idx.Count;
                 return;
             }
 
@@ -1029,6 +1080,7 @@ namespace SpineViewer.Spine.Implementations.SkeletonConverter
                 {
                     hasDefault = true;
                     WriteSkin(skin, true);
+                    skin2idx["default"] = skin2idx.Count;
                     break;
                 }
             }
@@ -1045,8 +1097,12 @@ namespace SpineViewer.Spine.Implementations.SkeletonConverter
             writer.WriteVarInt(skinCount);
             foreach (JsonObject skin in skins)
             {
-                if ((string)skin["name"] != "default")
+                var name = (string)skin["name"];
+                if (name != "default")
+                {
                     WriteSkin(skin);
+                    skin2idx[name] = skin2idx.Count;
+                }
             }
         }
 
@@ -1109,7 +1165,7 @@ namespace SpineViewer.Spine.Implementations.SkeletonConverter
                     if (attachment.TryGetPropertyValue("scaleY", out var scaleY)) writer.WriteFloat((float)scaleY); else writer.WriteFloat(1);
                     if (attachment.TryGetPropertyValue("width", out var width)) writer.WriteFloat((float)width); else writer.WriteFloat(32);
                     if (attachment.TryGetPropertyValue("height", out var height)) writer.WriteFloat((float)height); else writer.WriteFloat(32);
-                    if (attachment.TryGetPropertyValue("color", out var color1)) writer.WriteInt(int.Parse((string)color1, NumberStyles.HexNumber)); else writer.WriteInt(0);
+                    if (attachment.TryGetPropertyValue("color", out var color1)) writer.WriteInt(int.Parse((string)color1, NumberStyles.HexNumber)); else writer.WriteInt(-1);
                     break;
                 case AttachmentType.Boundingbox:
                     if (attachment.TryGetPropertyValue("vertexCount", out var _vertexCount1)) vertexCount = (int)_vertexCount1; else vertexCount = 0;
@@ -1119,10 +1175,10 @@ namespace SpineViewer.Spine.Implementations.SkeletonConverter
                     break;
                 case AttachmentType.Mesh:
                     if (attachment.TryGetPropertyValue("path", out var path2)) writer.WriteStringRef((string)path2); else writer.WriteStringRef(null);
-                    if (attachment.TryGetPropertyValue("color", out var color2)) writer.WriteInt(int.Parse((string)color2, NumberStyles.HexNumber)); else writer.WriteInt(0);
-                    if (attachment.TryGetPropertyValue("vertexCount", out var _vertexCount2)) vertexCount = (int)_vertexCount2; else vertexCount = 0;
+                    if (attachment.TryGetPropertyValue("color", out var color2)) writer.WriteInt(int.Parse((string)color2, NumberStyles.HexNumber)); else writer.WriteInt(-1);
+                    vertexCount = attachment["uvs"].AsArray().Count >> 1;
                     writer.WriteVarInt(vertexCount);
-                    WriteFloatArray(attachment["uvs"].AsArray(), vertexCount << 1); // vertexCount = uvs.Length
+                    WriteFloatArray(attachment["uvs"].AsArray(), vertexCount << 1); // vertexCount = uvs.Length >> 1
                     WriteShortArray(attachment["triangles"].AsArray());
                     WriteVertices(attachment["vertices"].AsArray(), vertexCount);
                     if (attachment.TryGetPropertyValue("hull", out var hull)) writer.WriteVarInt((int)hull); else writer.WriteVarInt(0);
@@ -1135,7 +1191,7 @@ namespace SpineViewer.Spine.Implementations.SkeletonConverter
                     break;
                 case AttachmentType.Linkedmesh:
                     if (attachment.TryGetPropertyValue("path", out var path3)) writer.WriteStringRef((string)path3); else writer.WriteStringRef(null);
-                    if (attachment.TryGetPropertyValue("color", out var color3)) writer.WriteInt(int.Parse((string)color3, NumberStyles.HexNumber)); else writer.WriteInt(0);
+                    if (attachment.TryGetPropertyValue("color", out var color3)) writer.WriteInt(int.Parse((string)color3, NumberStyles.HexNumber)); else writer.WriteInt(-1);
                     if (attachment.TryGetPropertyValue("skin", out var skin)) writer.WriteStringRef((string)skin); else writer.WriteStringRef(null);
                     if (attachment.TryGetPropertyValue("parent", out var parent)) writer.WriteStringRef((string)parent); else writer.WriteStringRef(null);
                     if (attachment.TryGetPropertyValue("deform", out var deform)) writer.WriteBoolean((bool)deform); else writer.WriteBoolean(true);
@@ -1199,6 +1255,10 @@ namespace SpineViewer.Spine.Implementations.SkeletonConverter
                         if (data.TryGetPropertyValue("balance", out var balance)) writer.WriteFloat((float)balance); else writer.WriteFloat(0);
                     }
                 }
+                else
+                {
+                    writer.WriteString(null);
+                }
                 event2idx[name] = i++;
             }
         }
@@ -1210,11 +1270,333 @@ namespace SpineViewer.Spine.Implementations.SkeletonConverter
                 writer.WriteVarInt(0);
                 return;
             }
-            JsonArray animations = root["animations"].AsArray();
+
+            JsonObject animations = root["animations"].AsObject();
             writer.WriteVarInt(animations.Count);
-            for (int i = 0, n = animations.Count; i < n; i++)
+            foreach (var (name, _data) in animations)
             {
-                throw new NotImplementedException();
+                JsonObject data = _data.AsObject();
+                writer.WriteString(name);
+                if (data.TryGetPropertyValue("slots", out var slots)) WriteSlotTimelines(slots.AsObject()); else writer.WriteVarInt(0);
+                if (data.TryGetPropertyValue("bones", out var bones)) WriteBoneTimelines(bones.AsObject()); else writer.WriteVarInt(0);
+                if (data.TryGetPropertyValue("ik", out var ik)) WriteIKTimelines(ik.AsObject()); else writer.WriteVarInt(0);
+                if (data.TryGetPropertyValue("transform", out var transform)) WriteTransformTimelines(transform.AsObject()); else writer.WriteVarInt(0);
+                if (data.TryGetPropertyValue("path", out var path)) WritePathTimelines(path.AsObject()); else writer.WriteVarInt(0);
+                if (data.TryGetPropertyValue("deform", out var deform)) WriteDeformTimelines(deform.AsObject()); else writer.WriteVarInt(0);
+                if (data.TryGetPropertyValue("drawOrder", out var drawOrder)) WriteDrawOrderTimelines(drawOrder.AsArray()); else 
+                    if (data.TryGetPropertyValue("draworder", out var draworder)) WriteDrawOrderTimelines(draworder.AsArray()); else writer.WriteVarInt(0);
+                if (data.TryGetPropertyValue("events", out var events)) WriteEventTimelines(events.AsArray()); else writer.WriteVarInt(0);
+            }
+        }
+
+        private void WriteSlotTimelines(JsonObject slotTimelines)
+        {
+            writer.WriteVarInt(slotTimelines.Count);
+            foreach (var (name, _timeline) in slotTimelines)
+            {
+                JsonObject timeline = _timeline.AsObject();
+                writer.WriteVarInt(slot2idx[name]);
+                writer.WriteVarInt(timeline.Count);
+                foreach (var (type, _frames) in timeline)
+                {
+                    JsonArray frames = _frames.AsArray();
+                    if (type == "attachment")
+                    {
+                        writer.WriteByte(SkeletonBinary.SLOT_ATTACHMENT);
+                        writer.WriteVarInt(frames.Count);
+                        foreach (JsonObject o in frames)
+                        {
+                            if (o.TryGetPropertyValue("time", out var time)) writer.WriteFloat((float)time); else writer.WriteFloat(0);
+                            writer.WriteStringRef((string)o["name"]);
+                        }
+                    }
+                    else if (type == "color")
+                    {
+                        writer.WriteByte(SkeletonBinary.SLOT_COLOR);
+                        writer.WriteVarInt(frames.Count);
+                        for (int i = 0, n = frames.Count; i < n; i++)
+                        {
+                            JsonObject o = frames[i].AsObject();
+                            if (o.TryGetPropertyValue("time", out var time)) writer.WriteFloat((float)time); else writer.WriteFloat(0);
+                            writer.WriteInt(int.Parse((string)o["color"], NumberStyles.HexNumber));
+                            if (i < n - 1) WriteCurve(o);
+                        }
+                    }
+                    else if (type == "twoColor")
+                    {
+                        writer.WriteByte(SkeletonBinary.SLOT_TWO_COLOR);
+                        writer.WriteVarInt(frames.Count);
+                        for (int i = 0, n = frames.Count; i < n; i++)
+                        {
+                            JsonObject o = frames[i].AsObject();
+                            if (o.TryGetPropertyValue("time", out var time)) writer.WriteFloat((float)time); else writer.WriteFloat(0);
+                            writer.WriteInt(int.Parse((string)o["light"], NumberStyles.HexNumber));
+                            writer.WriteInt(int.Parse((string)o["dark"], NumberStyles.HexNumber));
+                            if (i < n - 1) WriteCurve(o);
+                        }
+                    }
+                }
+            }
+        }
+
+        private void WriteBoneTimelines(JsonObject boneTimelines)
+        {
+            writer.WriteVarInt(boneTimelines.Count);
+            foreach (var (name, _timeline) in boneTimelines)
+            {
+                JsonObject timeline = _timeline.AsObject();
+                writer.WriteVarInt(bone2idx[name]);
+                writer.WriteVarInt(timeline.Count);
+                foreach (var (type, _frames) in timeline)
+                {
+                    JsonArray frames = _frames.AsArray();
+                    if (type == "rotate")
+                    {
+                        writer.WriteByte(SkeletonBinary.BONE_ROTATE);
+                        writer.WriteVarInt(frames.Count);
+                        for (int i = 0, n = frames.Count; i < n; i++)
+                        {
+                            JsonObject o = frames[i].AsObject();
+                            if (o.TryGetPropertyValue("time", out var time)) writer.WriteFloat((float)time); else writer.WriteFloat(0);
+                            if (o.TryGetPropertyValue("angle", out var angle)) writer.WriteFloat((float)angle); else writer.WriteFloat(0);
+                            if (i < n - 1) WriteCurve(o);
+                        }
+                    }
+                    else if (type == "translate")
+                    {
+                        writer.WriteByte(SkeletonBinary.BONE_TRANSLATE);
+                        writer.WriteVarInt(frames.Count);
+                        for (int i = 0, n = frames.Count; i < n; i++)
+                        {
+                            JsonObject o = frames[i].AsObject();
+                            if (o.TryGetPropertyValue("time", out var time)) writer.WriteFloat((float)time); else writer.WriteFloat(0);
+                            if (o.TryGetPropertyValue("x", out var x)) writer.WriteFloat((float)x); else writer.WriteFloat(0);
+                            if (o.TryGetPropertyValue("y", out var y)) writer.WriteFloat((float)y); else writer.WriteFloat(0);
+                            if (i < n - 1) WriteCurve(o);
+                        }
+                    }
+                    else if (type == "scale")
+                    {
+                        writer.WriteByte(SkeletonBinary.BONE_SCALE);
+                        writer.WriteVarInt(frames.Count);
+                        for (int i = 0, n = frames.Count; i < n; i++)
+                        {
+                            JsonObject o = frames[i].AsObject();
+                            if (o.TryGetPropertyValue("time", out var time)) writer.WriteFloat((float)time); else writer.WriteFloat(0);
+                            if (o.TryGetPropertyValue("x", out var x)) writer.WriteFloat((float)x); else writer.WriteFloat(1);
+                            if (o.TryGetPropertyValue("y", out var y)) writer.WriteFloat((float)y); else writer.WriteFloat(1);
+                            if (i < n - 1) WriteCurve(o);
+                        }
+                    }
+                    else if (type == "shear")
+                    {
+                        writer.WriteByte(SkeletonBinary.BONE_SHEAR);
+                        writer.WriteVarInt(frames.Count);
+                        for (int i = 0, n = frames.Count; i < n; i++)
+                        {
+                            JsonObject o = frames[i].AsObject();
+                            if (o.TryGetPropertyValue("time", out var time)) writer.WriteFloat((float)time); else writer.WriteFloat(0);
+                            if (o.TryGetPropertyValue("x", out var x)) writer.WriteFloat((float)x); else writer.WriteFloat(0);
+                            if (o.TryGetPropertyValue("y", out var y)) writer.WriteFloat((float)y); else writer.WriteFloat(0);
+                            if (i < n - 1) WriteCurve(o);
+                        }
+                    }
+                }
+            }
+        }
+
+        private void WriteIKTimelines(JsonObject ikTimelines)
+        {
+            writer.WriteVarInt(ikTimelines.Count);
+            foreach (var (name, _frames) in ikTimelines)
+            {
+                JsonArray frames = _frames.AsArray();
+                writer.WriteVarInt(ik2idx[name]);
+                writer.WriteVarInt(frames.Count);
+                for (int i = 0, n = frames.Count; i < n; i++)
+                {
+                    JsonObject o = frames[i].AsObject();
+                    if (o.TryGetPropertyValue("time", out var time)) writer.WriteFloat((float)time); else writer.WriteFloat(0);
+                    if (o.TryGetPropertyValue("mix", out var mix)) writer.WriteFloat((float)mix); else writer.WriteFloat(1);
+                    if (o.TryGetPropertyValue("softness", out var softness)) writer.WriteFloat((float)softness); else writer.WriteFloat(0);
+                    if (o.TryGetPropertyValue("bendPositive", out var bendPositive)) writer.WriteSByte((sbyte)((bool)bendPositive ? 1 : -1)); else writer.WriteSByte(1);
+                    if (o.TryGetPropertyValue("compress", out var compress)) writer.WriteBoolean((bool)compress); else writer.WriteBoolean(false);
+                    if (o.TryGetPropertyValue("stretch", out var stretch)) writer.WriteBoolean((bool)stretch); else writer.WriteBoolean(false);
+                    if (i < n - 1) WriteCurve(o);
+                }
+            }
+        }
+
+        private void WriteTransformTimelines(JsonObject transformTimelines)
+        {
+            writer.WriteVarInt(transformTimelines.Count);
+            foreach (var (name, _frames) in transformTimelines)
+            {
+                JsonArray frames = _frames.AsArray();
+                writer.WriteVarInt(transform2idx[name]);
+                writer.WriteVarInt(frames.Count);
+                for (int i = 0, n = frames.Count; i < n; i++)
+                {
+                    JsonObject o = frames[i].AsObject();
+                    if (o.TryGetPropertyValue("time", out var time)) writer.WriteFloat((float)time); else writer.WriteFloat(0);
+                    if (o.TryGetPropertyValue("rotateMix", out var rotateMix)) writer.WriteFloat((float)rotateMix); else writer.WriteFloat(1);
+                    if (o.TryGetPropertyValue("translateMix", out var translateMix)) writer.WriteFloat((float)translateMix); else writer.WriteFloat(1);
+                    if (o.TryGetPropertyValue("scaleMix", out var scaleMix)) writer.WriteFloat((float)scaleMix); else writer.WriteFloat(1);
+                    if (o.TryGetPropertyValue("shearMix", out var shearMix)) writer.WriteFloat((float)shearMix); else writer.WriteFloat(1);
+                    if (i < n - 1) WriteCurve(o);
+                }
+            }
+        }
+
+        private void WritePathTimelines(JsonObject pathTimelines)
+        {
+            writer.WriteVarInt(pathTimelines.Count);
+            foreach (var (name, _timeline) in pathTimelines)
+            {
+                JsonObject timeline = _timeline.AsObject();
+                writer.WriteVarInt(path2idx[name]);
+                writer.WriteVarInt(timeline.Count);
+                foreach (var (type, _frame) in timeline)
+                {
+                    JsonArray frames = _frame.AsArray();
+                    if (type == "position")
+                    {
+                        writer.WriteByte(SkeletonBinary.PATH_POSITION);
+                        writer.WriteVarInt(frames.Count);
+                        for (int i = 0, n = frames.Count; i < n; i++)
+                        {
+                            JsonObject o = frames[i].AsObject();
+                            if (o.TryGetPropertyValue("time", out var time)) writer.WriteFloat((float)time); else writer.WriteFloat(0);
+                            if (o.TryGetPropertyValue("position", out var position)) writer.WriteFloat((float)position); else writer.WriteFloat(0);
+                            if (i < n - 1) WriteCurve(o);
+                        }
+                    }
+                    else if (type == "spacing")
+                    {
+                        writer.WriteByte(SkeletonBinary.PATH_SPACING);
+                        writer.WriteVarInt(frames.Count);
+                        for (int i = 0, n = frames.Count; i < n; i++)
+                        {
+                            JsonObject o = frames[i].AsObject();
+                            if (o.TryGetPropertyValue("time", out var time)) writer.WriteFloat((float)time); else writer.WriteFloat(0);
+                            if (o.TryGetPropertyValue("spacing", out var spacing)) writer.WriteFloat((float)spacing); else writer.WriteFloat(0);
+                            if (i < n - 1) WriteCurve(o);
+                        }
+                    }
+                    else if (type == "mix")
+                    {
+                        writer.WriteByte(SkeletonBinary.PATH_MIX);
+                        writer.WriteVarInt(frames.Count);
+                        for (int i = 0, n = frames.Count; i < n; i++)
+                        {
+                            JsonObject o = frames[i].AsObject();
+                            if (o.TryGetPropertyValue("time", out var time)) writer.WriteFloat((float)time); else writer.WriteFloat(0);
+                            if (o.TryGetPropertyValue("rotateMix", out var rotateMix)) writer.WriteFloat((float)rotateMix); else writer.WriteFloat(1);
+                            if (o.TryGetPropertyValue("translateMix", out var translateMix)) writer.WriteFloat((float)translateMix); else writer.WriteFloat(1);
+                            if (i < n - 1) WriteCurve(o);
+                        }
+                    }
+                }
+            }
+        }
+
+        private void WriteDeformTimelines(JsonObject deformTimelines)
+        {
+            writer.WriteVarInt(deformTimelines.Count);
+            foreach (var (skinName, _skinValue) in deformTimelines)
+            {
+                JsonObject skinValue = _skinValue.AsObject();
+                writer.WriteVarInt(skin2idx[skinName]);
+                writer.WriteVarInt(skinValue.Count);
+                foreach (var (slotName, _slotValue) in skinValue)
+                {
+                    JsonObject slotValue = _slotValue.AsObject();
+                    writer.WriteVarInt(slot2idx[slotName]);
+                    writer.WriteVarInt(slotValue.Count);
+                    foreach (var (attachmentName, _frames) in slotValue)
+                    {
+                        JsonArray frames = _frames.AsArray();
+                        writer.WriteStringRef(attachmentName);
+                        writer.WriteVarInt(frames.Count);
+                        for (int i = 0, n = frames.Count; i < n; i++)
+                        {
+                            JsonObject o = frames[i].AsObject();
+                            if (o.TryGetPropertyValue("time", out var time)) writer.WriteFloat((float)time); else writer.WriteFloat(0);
+                            if (o.TryGetPropertyValue("vertices", out var _vertices))
+                            {
+                                JsonArray vertices = _vertices.AsArray();
+                                writer.WriteVarInt(vertices.Count);
+                                if (vertices.Count > 0)
+                                {
+                                    if (o.TryGetPropertyValue("offset", out var offset)) writer.WriteVarInt((int)offset); else writer.WriteVarInt(0);
+                                    WriteFloatArray(vertices, vertices.Count);
+                                }
+                            }
+                            else
+                            {
+                                writer.WriteVarInt(0);
+                            }
+                            if (i < n - 1) WriteCurve(o);
+                        }
+                    }
+                }
+            }
+        }
+
+        private void WriteDrawOrderTimelines(JsonArray drawOrderTimelines)
+        {
+            writer.WriteVarInt(drawOrderTimelines.Count);
+            foreach (JsonObject data in drawOrderTimelines)
+            {
+                if (data.TryGetPropertyValue("time", out var time)) writer.WriteFloat((float)time); else writer.WriteFloat(0);
+                if (data.TryGetPropertyValue("offsets", out var _offsets))
+                {
+                    JsonArray offsets = _offsets.AsArray();
+                    writer.WriteVarInt(offsets.Count);
+                    foreach (JsonObject o in offsets)
+                    {
+                        writer.WriteVarInt(slot2idx[(string)o["slot"]]);
+                        writer.WriteVarInt((int)o["offset"]);
+                    }
+                }
+                else
+                {
+                    writer.WriteVarInt(0);
+                }
+            }
+        }
+
+        private void WriteEventTimelines(JsonArray eventTimelines)
+        {
+            JsonObject events = root["events"].AsObject();
+
+            writer.WriteVarInt(eventTimelines.Count);
+            foreach(JsonObject data in eventTimelines)
+            {
+                JsonObject eventData = events[(string)data["name"]].AsObject();
+                if (data.TryGetPropertyValue("time", out var time)) writer.WriteFloat((float)time); else writer.WriteFloat(0);
+                writer.WriteVarInt(event2idx[(string)data["name"]]);
+                if (data.TryGetPropertyValue("int", out var @int)) writer.WriteVarInt((int)@int); else
+                    if (eventData.TryGetPropertyValue("int", out var @int2)) writer.WriteVarInt((int)@int2); else writer.WriteVarInt(0);
+                if (data.TryGetPropertyValue("float", out var @float)) writer.WriteFloat((float)@float); else
+                    if (eventData.TryGetPropertyValue("float", out var @float2)) writer.WriteFloat((float)@float2); else writer.WriteFloat(0);
+                if (data.TryGetPropertyValue("string", out var @string))
+                {
+                    writer.WriteBoolean(true);
+                    writer.WriteString((string)@string);
+                }
+                else
+                {
+                    writer.WriteBoolean(false);
+                }
+
+                if (eventData.ContainsKey("audio"))
+                {
+                    if (data.TryGetPropertyValue("volume", out var volume)) writer.WriteFloat((float)volume); else
+                        if (eventData.TryGetPropertyValue("volume", out var volume2)) writer.WriteFloat((float)volume2); else writer.WriteFloat(1);
+                    if (data.TryGetPropertyValue("balance", out var balance)) writer.WriteFloat((float)balance); else
+                        if (eventData.TryGetPropertyValue("balance", out var balance2)) writer.WriteFloat((float)balance2); else writer.WriteFloat(0);
+                }
             }
         }
 
@@ -1234,7 +1616,7 @@ namespace SpineViewer.Spine.Implementations.SkeletonConverter
         public void WriteShortArray(JsonArray array)
         {
             writer.WriteVarInt(array.Count);
-            foreach (uint i in array)
+            foreach (int i in array)
             {
                 writer.WriteByte((byte)(i >> 8));
                 writer.WriteByte((byte)i);
@@ -1267,6 +1649,29 @@ namespace SpineViewer.Spine.Implementations.SkeletonConverter
             }
         }
 
+        private void WriteCurve(JsonObject obj)
+        {
+            if (obj.TryGetPropertyValue("curve", out var curve))
+            {
+                if (curve.GetValueKind() == JsonValueKind.String)
+                {
+                    writer.WriteByte(SkeletonBinary.CURVE_STEPPED);
+                }
+                else
+                {
+                    writer.WriteByte(SkeletonBinary.CURVE_BEZIER);
+                    writer.WriteFloat((float)curve);
+                    if (obj.TryGetPropertyValue("c2", out var c2)) writer.WriteFloat((float)c2); else writer.WriteFloat(0);
+                    if (obj.TryGetPropertyValue("c3", out var c3)) writer.WriteFloat((float)c3); else writer.WriteFloat(1);
+                    if (obj.TryGetPropertyValue("c4", out var c4)) writer.WriteFloat((float)c4); else writer.WriteFloat(1);
+                }
+            }
+            else
+            {
+                writer.WriteByte(SkeletonBinary.CURVE_LINEAR);
+            }
+        }
+
         public override JsonObject ReadJson(string jsonPath)
         {
             // replace 3.8.75 to another version to avoid detection in official runtime

SpineViewer/Spine/Implementations/SpineObject/SpineObject21.cs

@@ -1,12 +1,15 @@
 using System;
 using System.Collections;
+using System.Collections.Frozen;
 using System.Collections.Generic;
+using System.Collections.Immutable;
 using System.Diagnostics;
 using System.IO;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
 using SpineRuntime21;
+using SpineViewer.Extensions;
 using SpineViewer.Utils;
 
 namespace SpineViewer.Spine.Implementations.SpineObject
@@ -14,7 +17,17 @@ namespace SpineViewer.Spine.Implementations.SpineObject
     [SpineImplementation(SpineVersion.V21)]
     internal class SpineObject21 : Spine.SpineObject
     {
-        private static readonly Animation EmptyAnimation = new(EMPTY_ANIMATION, [], 0);
+        //private static SFML.Graphics.BlendMode GetSFMLBlendMode(BlendMode spineBlendMode)
+        //{
+        //    return spineBlendMode switch
+        //    {
+        //        BlendMode.Normal => BlendMode.Normal,
+        //        BlendMode.Additive => BlendMode.Additive,
+        //        BlendMode.Multiply => BlendMode.Multiply,
+        //        BlendMode.Screen => BlendMode.Screen,
+        //        _ => throw new NotImplementedException($"{spineBlendMode}"),
+        //    };
+        //}
 
         private class TextureLoader : SpineRuntime21.TextureLoader
         {
@@ -34,11 +47,13 @@ namespace SpineViewer.Spine.Implementations.SpineObject
                 ((SFML.Graphics.Texture)texture).Dispose();
             }
         }
-        private static TextureLoader textureLoader = new();
 
-        private Atlas atlas;
-        private SkeletonBinary? skeletonBinary;
-        private SkeletonJson? skeletonJson;
+        private readonly static TextureLoader textureLoader = new();
+        private static readonly Animation EmptyAnimation = new(EMPTY_ANIMATION, [], 0);
+
+        private readonly Atlas atlas;
+        private readonly SkeletonBinary? skeletonBinary;
+        private readonly SkeletonJson? skeletonJson;
         private SkeletonData skeletonData;
         private AnimationStateData animationStateData;
 
@@ -48,6 +63,11 @@ namespace SpineViewer.Spine.Implementations.SpineObject
         // 2.1.x 不支持剪裁
         //private SkeletonClipping clipping = new(); 
 
+        /// <summary>
+        /// 所有插槽在所有皮肤中可用的附件集合
+        /// </summary>
+        private readonly Dictionary<string, Dictionary<string, Attachment>> slotAttachments = [];
+
         public SpineObject21(string skelPath, string atlasPath) : base(skelPath, atlasPath)
         {
             atlas = new Atlas(AtlasPath, textureLoader);
@@ -74,13 +94,21 @@ namespace SpineViewer.Spine.Implementations.SpineObject
                 }
             }
 
-            foreach (var skin in skeletonData.Skins)
-                skinNames.Add(skin.Name);
+            foreach (var sk in skeletonData.Skins)
+            {
+                foreach (var (k, att) in sk.Attachments)
+                {
+                    var slotName = skeletonData.Slots[k.Key].Name;
+                    if (!slotAttachments.TryGetValue(slotName, out var attachments))
+                        slotAttachments[slotName] = attachments = new() { [EMPTY_ATTACHMENT] = null };
+                    attachments[att.Name] = att;
+                }
+            }
+            SlotAttachmentNames = slotAttachments.ToFrozenDictionary(item => item.Key, item => item.Value.Keys.ToImmutableArray());
+            SkinNames = skeletonData.Skins.Select(v => v.Name).Where(v => v != "default").ToImmutableArray();
+            AnimationNames = [EMPTY_ANIMATION, .. skeletonData.Animations.Select(v => v.Name)];
 
-            foreach (var anime in skeletonData.Animations)
-                animationNames.Add(anime.Name);
-
-            skeleton = new Skeleton(skeletonData);
+            skeleton = new Skeleton(skeletonData) { Skin = new(Guid.NewGuid().ToString()) }; // 挂载一个空皮肤当作容器
             animationStateData = new AnimationStateData(skeletonData);
             animationState = new AnimationState(animationStateData);
         }
@@ -124,15 +152,15 @@ namespace SpineViewer.Spine.Implementations.SpineObject
                 }
 
                 // reload skel-dependent data
+                skeleton = new Skeleton(skeletonData) { Skin = new(Guid.NewGuid().ToString()) };
                 animationStateData = new AnimationStateData(skeletonData) { DefaultMix = animationStateData.DefaultMix };
-                skeleton = new Skeleton(skeletonData);
                 animationState = new AnimationState(animationStateData);
 
                 // 恢复状态
                 position = pos;
                 flipX = fX;
                 flipY = fY;
-                foreach (var s in loadedSkins) addSkin(s);
+                reloadSkins();
                 for (int i = 0; i < animations.Length; i++) setAnimation(i, animations[i]);
             }
         }
@@ -159,16 +187,30 @@ namespace SpineViewer.Spine.Implementations.SpineObject
             set => skeleton.FlipY = value;
         }
 
+        protected override string getSlotAttachment(string slot) => skeleton.FindSlot(slot)?.Attachment?.Name ?? EMPTY_ATTACHMENT;
+
+        protected override void setSlotAttachment(string slot, string name)
+        {
+            if (slotAttachments.TryGetValue(slot, out var attachments)
+                && attachments.TryGetValue(name, out var att)
+                && skeleton.FindSlot(slot) is Slot s)
+                s.Attachment = att;
+        }
+
         protected override void addSkin(string name)
         {
-            if (!skinNames.Contains(name)) return;
-            skeleton.SetSkin(name); // XXX: 3.7 及以下不支持 AddSkin
+            if (skeletonData.FindSkin(name) is Skin sk)
+            {
+                // XXX: 3.7 及以下不支持 AddSkin
+                foreach (var (k, v) in sk.Attachments)
+                    skeleton.Skin.AddAttachment(k.Key, k.Value, v);
+            }
             skeleton.SetSlotsToSetupPose();
         }
 
-        protected override void clearSkin()
+        protected override void clearSkins()
         {
-            skeleton.SetSkin(skeletonData.DefaultSkin);
+            skeleton.Skin.Attachments.Clear();
             skeleton.SetSlotsToSetupPose();
         }
 
@@ -180,7 +222,7 @@ namespace SpineViewer.Spine.Implementations.SpineObject
         {
             if (name == EMPTY_ANIMATION)
                 animationState.SetAnimation(track, EmptyAnimation, false);
-            else if (animationNames.Contains(name))
+            else if (AnimationNames.Contains(name))
                 animationState.SetAnimation(track, name, true);
         }
 
@@ -188,54 +230,53 @@ namespace SpineViewer.Spine.Implementations.SpineObject
 
         public override float GetAnimationDuration(string name) { return skeletonData.FindAnimation(name)?.Duration ?? 0f; }
 
-        protected override RectangleF bounds
+        protected override RectangleF getCurrentBounds()
         {
-            get
-            {
-                float[] temp = new float[8];
-                var drawOrderItems = skeleton.DrawOrder;
-                float minX = int.MaxValue, minY = int.MaxValue, maxX = int.MinValue, maxY = int.MinValue;
-                for (int i = 0, n = skeleton.DrawOrder.Count; i < n; i++)
-                {
-                    Slot slot = drawOrderItems[i];
-                    int verticesLength = 0;
-                    float[] vertices = null;
-                    Attachment attachment = slot.Attachment;
-                    var regionAttachment = attachment as RegionAttachment;
-                    if (regionAttachment != null)
-                    {
-                        verticesLength = 8;
-                        vertices = temp;
-                        if (vertices.Length < 8) vertices = temp = new float[8];
-                        regionAttachment.ComputeWorldVertices(slot.Bone, temp);
-                    }
-                    else
-                    {
-                        var meshAttachment = attachment as MeshAttachment;
-                        if (meshAttachment != null)
-                        {
-                            MeshAttachment mesh = meshAttachment;
-                            verticesLength = mesh.Vertices.Length;
-                            vertices = temp;
-                            if (vertices.Length < verticesLength) vertices = temp = new float[verticesLength];
-                            mesh.ComputeWorldVertices(slot, temp);
-                        }
-                    }
+            skeleton.GetBounds(out var x, out var y, out var w, out var h);
+            return new RectangleF(x, y, w, h);
+        }
 
-                    if (vertices != null)
-                    {
-                        for (int ii = 0; ii < verticesLength; ii += 2)
-                        {
-                            float vx = vertices[ii], vy = vertices[ii + 1];
-                            minX = Math.Min(minX, vx);
-                            minY = Math.Min(minY, vy);
-                            maxX = Math.Max(maxX, vx);
-                            maxY = Math.Max(maxY, vy);
-                        }
-                    }
-                }
-                return new RectangleF(minX, minY, maxX - minX, maxY - minY);
+        protected override RectangleF getBounds()
+        {
+            // 初始化临时对象
+            var maxDuration = 0f;
+            var tmpSkeleton = new Skeleton(skeletonData) { Skin = new(Guid.NewGuid().ToString()) };
+            var tmpAnimationState = new AnimationState(animationStateData);
+            tmpSkeleton.FlipX = skeleton.FlipX;
+            tmpSkeleton.FlipY = skeleton.FlipY;
+            tmpSkeleton.X = skeleton.X;
+            tmpSkeleton.Y = skeleton.Y;
+            foreach (var (name, _) in skinLoadStatus.Where(e => e.Value))
+            {
+                foreach (var (k, v) in skeletonData.FindSkin(name).Attachments)
+                    tmpSkeleton.Skin.AddAttachment(k.Key, k.Value, v);
             }
+            foreach (var tr in animationState.Tracks.Select((_, i) => i).Where(i => animationState.Tracks[i] is not null))
+            {
+                var ani = animationState.GetCurrent(tr).Animation;
+                tmpAnimationState.SetAnimation(tr, ani, true);
+                if (ani.Duration > maxDuration) maxDuration = ani.Duration;
+            }
+            tmpSkeleton.SetSlotsToSetupPose();
+            tmpAnimationState.Update(0);
+            tmpAnimationState.Apply(tmpSkeleton);
+            tmpSkeleton.Update(0);
+            tmpSkeleton.UpdateWorldTransform();
+
+            // 按 10 帧每秒计算边框
+            var bounds = getCurrentBounds();
+            float[] _ = [];
+            for (float tick = 0, delta = 0.1f; tick < maxDuration; tick += delta)
+            {
+                tmpSkeleton.GetBounds(out var x, out var y, out var w, out var h);
+                bounds = bounds.Union(new(x, y, w, h));
+                tmpAnimationState.Update(delta);
+                tmpAnimationState.Apply(tmpSkeleton);
+                tmpSkeleton.Update(delta);
+                tmpSkeleton.UpdateWorldTransform();
+            }
+
+            return bounds;
         }
 
         protected override void update(float delta)
@@ -246,18 +287,6 @@ namespace SpineViewer.Spine.Implementations.SpineObject
             skeleton.UpdateWorldTransform();
         }
 
-        //private SFML.Graphics.BlendMode GetSFMLBlendMode(BlendMode spineBlendMode)
-        //{
-        //    return spineBlendMode switch
-        //    {
-        //        BlendMode.Normal => BlendMode.Normal,
-        //        BlendMode.Additive => BlendMode.Additive,
-        //        BlendMode.Multiply => BlendMode.Multiply,
-        //        BlendMode.Screen => BlendMode.Screen,
-        //        _ => throw new NotImplementedException($"{spineBlendMode}"),
-        //    };
-        //}
-
         protected override void draw(SFML.Graphics.RenderTarget target, SFML.Graphics.RenderStates states)
         {
             triangleVertices.Clear();
@@ -503,7 +532,7 @@ namespace SpineViewer.Spine.Implementations.SpineObject
             if (debugBounds)
             {
                 var vt = new SFML.Graphics.Vertex() { Color = BoundsColor };
-                var b = bounds;
+                var b = getCurrentBounds();
 
                 vt.Position.X = b.Left;
                 vt.Position.Y = b.Top;

SpineViewer/Spine/Implementations/SpineObject/SpineObject36.cs

@@ -1,12 +1,15 @@
 using System;
 using System.Collections;
+using System.Collections.Frozen;
 using System.Collections.Generic;
+using System.Collections.Immutable;
 using System.Diagnostics;
 using System.IO;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
 using SpineRuntime36;
+using SpineViewer.Extensions;
 using SpineViewer.Utils;
 
 namespace SpineViewer.Spine.Implementations.SpineObject
@@ -14,7 +17,17 @@ namespace SpineViewer.Spine.Implementations.SpineObject
     [SpineImplementation(SpineVersion.V36)]
     internal class SpineObject36 : Spine.SpineObject
     {
-        private static readonly Animation EmptyAnimation = new(EMPTY_ANIMATION, [], 0);
+        private static SFML.Graphics.BlendMode GetSFMLBlendMode(BlendMode spineBlendMode)
+        {
+            return spineBlendMode switch
+            {
+                BlendMode.Normal => SFMLBlendMode.NormalPma,
+                BlendMode.Additive => SFMLBlendMode.AdditivePma,
+                BlendMode.Multiply => SFMLBlendMode.MultiplyPma,
+                BlendMode.Screen => SFMLBlendMode.ScreenPma,
+                _ => throw new NotImplementedException($"{spineBlendMode}"),
+            };
+        }
 
         private class TextureLoader : SpineRuntime36.TextureLoader
         {
@@ -34,18 +47,25 @@ namespace SpineViewer.Spine.Implementations.SpineObject
                 ((SFML.Graphics.Texture)texture).Dispose();
             }
         }
-        private static TextureLoader textureLoader = new();
 
-        private Atlas atlas;
-        private SkeletonBinary? skeletonBinary;
-        private SkeletonJson? skeletonJson;
+        private static readonly TextureLoader textureLoader = new();
+        private static readonly Animation EmptyAnimation = new(EMPTY_ANIMATION, [], 0);
+
+        private readonly Atlas atlas;
+        private readonly SkeletonBinary? skeletonBinary;
+        private readonly SkeletonJson? skeletonJson;
         private SkeletonData skeletonData;
         private AnimationStateData animationStateData;
 
         private Skeleton skeleton;
         private AnimationState animationState;
 
-        private SkeletonClipping clipping = new();
+        private readonly SkeletonClipping clipping = new();
+
+        /// <summary>
+        /// 所有插槽在所有皮肤中可用的附件集合
+        /// </summary>
+        private readonly Dictionary<string, Dictionary<string, Attachment>> slotAttachments = [];
 
         public SpineObject36(string skelPath, string atlasPath) : base(skelPath, atlasPath)
         {
@@ -73,13 +93,21 @@ namespace SpineViewer.Spine.Implementations.SpineObject
                 }
             }
 
-            foreach (var skin in skeletonData.Skins)
-                skinNames.Add(skin.Name);
+            foreach (var sk in skeletonData.Skins)
+            {
+                foreach (var (k, att) in sk.Attachments)
+                {
+                    var slotName = skeletonData.Slots.Items[k.slotIndex].Name;
+                    if (!slotAttachments.TryGetValue(slotName, out var attachments))
+                        slotAttachments[slotName] = attachments = new() { [EMPTY_ATTACHMENT] = null };
+                    attachments[att.Name] = att;
+                }
+            }
+            SlotAttachmentNames = slotAttachments.ToFrozenDictionary(item => item.Key, item => item.Value.Keys.ToImmutableArray());
+            SkinNames = skeletonData.Skins.Select(v => v.Name).Where(v => v != "default").ToImmutableArray();
+            AnimationNames = [EMPTY_ANIMATION, .. skeletonData.Animations.Select(v => v.Name)];
 
-            foreach (var anime in skeletonData.Animations)
-                animationNames.Add(anime.Name);
-
-            skeleton = new Skeleton(skeletonData);
+            skeleton = new Skeleton(skeletonData) { Skin = new(Guid.NewGuid().ToString()) }; // 挂载一个空皮肤当作容器
             animationStateData = new AnimationStateData(skeletonData);
             animationState = new AnimationState(animationStateData);
         }
@@ -123,15 +151,15 @@ namespace SpineViewer.Spine.Implementations.SpineObject
                 }
 
                 // reload skel-dependent data
+                skeleton = new Skeleton(skeletonData) { Skin = new(Guid.NewGuid().ToString()) };
                 animationStateData = new AnimationStateData(skeletonData) { DefaultMix = animationStateData.DefaultMix };
-                skeleton = new Skeleton(skeletonData);
                 animationState = new AnimationState(animationStateData);
 
                 // 恢复状态
                 position = pos;
                 flipX = fX;
                 flipY = fY;
-                foreach (var s in loadedSkins) addSkin(s);
+                reloadSkins();
                 for (int i = 0; i < animations.Length; i++) setAnimation(i, animations[i]);
             }
         }
@@ -158,16 +186,30 @@ namespace SpineViewer.Spine.Implementations.SpineObject
             set => skeleton.FlipY = value;
         }
 
+        protected override string getSlotAttachment(string slot) => skeleton.FindSlot(slot)?.Attachment?.Name ?? EMPTY_ATTACHMENT;
+
+        protected override void setSlotAttachment(string slot, string name)
+        {
+            if (slotAttachments.TryGetValue(slot, out var attachments)
+                && attachments.TryGetValue(name, out var att)
+                && skeleton.FindSlot(slot) is Slot s)
+                s.Attachment = att;
+        }
+
         protected override void addSkin(string name)
         {
-            if (!skinNames.Contains(name)) return;
-            skeleton.SetSkin(name); // XXX: 3.7 及以下不支持 AddSkin
+            if (skeletonData.FindSkin(name) is Skin sk)
+            {
+                // XXX: 3.7 及以下不支持 AddSkin
+                foreach (var (k, v) in sk.Attachments)
+                    skeleton.Skin.AddAttachment(k.slotIndex, k.name, v);
+            }
             skeleton.SetSlotsToSetupPose();
         }
 
-        protected override void clearSkin()
+        protected override void clearSkins()
         {
-            skeleton.SetSkin(skeletonData.DefaultSkin);
+            skeleton.Skin.Attachments.Clear();
             skeleton.SetSlotsToSetupPose();
         }
 
@@ -179,7 +221,7 @@ namespace SpineViewer.Spine.Implementations.SpineObject
         {
             if (name == EMPTY_ANIMATION)
                 animationState.SetAnimation(track, EmptyAnimation, false);
-            else if (animationNames.Contains(name))
+            else if (AnimationNames.Contains(name))
                 animationState.SetAnimation(track, name, true);
         }
 
@@ -187,14 +229,54 @@ namespace SpineViewer.Spine.Implementations.SpineObject
 
         public override float GetAnimationDuration(string name) { return skeletonData.FindAnimation(name)?.Duration ?? 0f; }
 
-        protected override RectangleF bounds
+        protected override RectangleF getCurrentBounds()
         {
-            get
+            float[] _ = [];
+            skeleton.GetBounds(out var x, out var y, out var w, out var h, ref _);
+            return new RectangleF(x, y, w, h);
+        }
+
+        protected override RectangleF getBounds()
+        {
+            // 初始化临时对象
+            var maxDuration = 0f;
+            var tmpSkeleton = new Skeleton(skeletonData) { Skin = new(Guid.NewGuid().ToString()) };
+            var tmpAnimationState = new AnimationState(animationStateData);
+            tmpSkeleton.FlipX = skeleton.FlipX;
+            tmpSkeleton.FlipY = skeleton.FlipY;
+            tmpSkeleton.X = skeleton.X;
+            tmpSkeleton.Y = skeleton.Y;
+            foreach (var (name, _) in skinLoadStatus.Where(e => e.Value))
             {
-                float[] _ = [];
-                skeleton.GetBounds(out var x, out var y, out var w, out var h, ref _);
-                return new RectangleF(x, y, w, h);
+                foreach (var (k, v) in skeletonData.FindSkin(name).Attachments)
+                    tmpSkeleton.Skin.AddAttachment(k.slotIndex, k.name, v);
             }
+            foreach (var tr in animationState.Tracks.Select((_, i) => i).Where(i => animationState.Tracks.Items[i] is not null))
+            {
+                var ani = animationState.GetCurrent(tr).Animation;
+                tmpAnimationState.SetAnimation(tr, ani, true);
+                if (ani.Duration > maxDuration) maxDuration = ani.Duration;
+            }
+            tmpSkeleton.SetSlotsToSetupPose();
+            tmpAnimationState.Update(0);
+            tmpAnimationState.Apply(tmpSkeleton);
+            tmpSkeleton.Update(0);
+            tmpSkeleton.UpdateWorldTransform();
+
+            // 按 10 帧每秒计算边框
+            var bounds = getCurrentBounds();
+            float[] _ = [];
+            for (float tick = 0, delta = 0.1f; tick < maxDuration; tick += delta)
+            {
+                tmpSkeleton.GetBounds(out var x, out var y, out var w, out var h, ref _);
+                bounds = bounds.Union(new(x, y, w, h));
+                tmpAnimationState.Update(delta);
+                tmpAnimationState.Apply(tmpSkeleton);
+                tmpSkeleton.Update(delta);
+                tmpSkeleton.UpdateWorldTransform();
+            }
+
+            return bounds;
         }
 
         protected override void update(float delta)
@@ -205,18 +287,6 @@ namespace SpineViewer.Spine.Implementations.SpineObject
             skeleton.UpdateWorldTransform();
         }
 
-        private SFML.Graphics.BlendMode GetSFMLBlendMode(BlendMode spineBlendMode)
-        {
-            return spineBlendMode switch
-            {
-                BlendMode.Normal => SFMLBlendMode.NormalPma,
-                BlendMode.Additive => SFMLBlendMode.AdditivePma,
-                BlendMode.Multiply => SFMLBlendMode.MultiplyPma,
-                BlendMode.Screen => SFMLBlendMode.ScreenPma,
-                _ => throw new NotImplementedException($"{spineBlendMode}"),
-            };
-        }
-
         protected override void draw(SFML.Graphics.RenderTarget target, SFML.Graphics.RenderStates states)
         {
             triangleVertices.Clear();
@@ -489,7 +559,7 @@ namespace SpineViewer.Spine.Implementations.SpineObject
             if (debugBounds)
             {
                 var vt = new SFML.Graphics.Vertex() { Color = BoundsColor };
-                var b = bounds;
+                var b = getCurrentBounds();
 
                 vt.Position.X = b.Left;
                 vt.Position.Y = b.Top;

SpineViewer/Spine/Implementations/SpineObject/SpineObject37.cs

@@ -1,9 +1,12 @@
 using System;
+using System.Collections.Frozen;
 using System.Collections.Generic;
+using System.Collections.Immutable;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
 using SpineRuntime37;
+using SpineViewer.Extensions;
 using SpineViewer.Utils;
 
 namespace SpineViewer.Spine.Implementations.SpineObject
@@ -11,7 +14,17 @@ namespace SpineViewer.Spine.Implementations.SpineObject
     [SpineImplementation(SpineVersion.V37)]
     internal class SpineObject37 : Spine.SpineObject
     {
-        private static readonly Animation EmptyAnimation = new(EMPTY_ANIMATION, [], 0);
+        private static SFML.Graphics.BlendMode GetSFMLBlendMode(BlendMode spineBlendMode)
+        {
+            return spineBlendMode switch
+            {
+                BlendMode.Normal => SFMLBlendMode.NormalPma,
+                BlendMode.Additive => SFMLBlendMode.AdditivePma,
+                BlendMode.Multiply => SFMLBlendMode.MultiplyPma,
+                BlendMode.Screen => SFMLBlendMode.ScreenPma,
+                _ => throw new NotImplementedException($"{spineBlendMode}"),
+            };
+        }
 
         private class TextureLoader : SpineRuntime37.TextureLoader
         {
@@ -32,18 +45,24 @@ namespace SpineViewer.Spine.Implementations.SpineObject
             }
         }
 
-        private static TextureLoader textureLoader = new();
+        private static readonly TextureLoader textureLoader = new();
+        private static readonly Animation EmptyAnimation = new(EMPTY_ANIMATION, [], 0);
 
-        private Atlas atlas;
-        private SkeletonBinary? skeletonBinary;
-        private SkeletonJson? skeletonJson;
-        private SkeletonData skeletonData;
-        private AnimationStateData animationStateData;
+        private readonly Atlas atlas;
+        private readonly SkeletonBinary? skeletonBinary;
+        private readonly SkeletonJson? skeletonJson;
+        private readonly SkeletonData skeletonData;
+        private readonly AnimationStateData animationStateData;
 
-        private Skeleton skeleton;
-        private AnimationState animationState;
+        private readonly Skeleton skeleton;
+        private readonly AnimationState animationState;
 
-        private SkeletonClipping clipping = new();
+        private readonly SkeletonClipping clipping = new();
+
+        /// <summary>
+        /// 所有插槽在所有皮肤中可用的附件集合
+        /// </summary>
+        private readonly Dictionary<string, Dictionary<string, Attachment>> slotAttachments = [];
 
         public SpineObject37(string skelPath, string atlasPath) : base(skelPath, atlasPath)
         {
@@ -71,13 +90,21 @@ namespace SpineViewer.Spine.Implementations.SpineObject
                 }
             }
 
-            foreach (var skin in skeletonData.Skins)
-                skinNames.Add(skin.Name);
+            foreach (var sk in skeletonData.Skins)
+            {
+                foreach (var (k, att) in sk.Attachments)
+                {
+                    var slotName = skeletonData.Slots.Items[k.slotIndex].Name;
+                    if (!slotAttachments.TryGetValue(slotName, out var attachments))
+                        slotAttachments[slotName] = attachments = new() { [EMPTY_ATTACHMENT] = null };
+                    attachments[att.Name] = att;
+                }
+            }
+            SlotAttachmentNames = slotAttachments.ToFrozenDictionary(item => item.Key, item => item.Value.Keys.ToImmutableArray());
+            SkinNames = skeletonData.Skins.Select(v => v.Name).Where(v => v != "default").ToImmutableArray();
+            AnimationNames = [EMPTY_ANIMATION, .. skeletonData.Animations.Select(v => v.Name)];
 
-            foreach (var anime in skeletonData.Animations)
-                animationNames.Add(anime.Name);
-
-            skeleton = new Skeleton(skeletonData);
+            skeleton = new Skeleton(skeletonData) { Skin = new(Guid.NewGuid().ToString()) }; // 挂载一个空皮肤当作容器
             animationStateData = new AnimationStateData(skeletonData);
             animationState = new AnimationState(animationStateData);
         }
@@ -130,16 +157,30 @@ namespace SpineViewer.Spine.Implementations.SpineObject
             }
         }
 
+        protected override string getSlotAttachment(string slot) => skeleton.FindSlot(slot)?.Attachment?.Name ?? EMPTY_ATTACHMENT;
+
+        protected override void setSlotAttachment(string slot, string name)
+        {
+            if (slotAttachments.TryGetValue(slot, out var attachments)
+                && attachments.TryGetValue(name, out var att)
+                && skeleton.FindSlot(slot) is Slot s)
+                s.Attachment = att;
+        }
+
         protected override void addSkin(string name)
         {
-            if (!skinNames.Contains(name)) return;
-            skeleton.SetSkin(name); // XXX: 3.7 及以下不支持 AddSkin
+            if (skeletonData.FindSkin(name) is Skin sk)
+            {
+                // XXX: 3.7 及以下不支持 AddSkin
+                foreach (var (k, v) in sk.Attachments) 
+                    skeleton.Skin.AddAttachment(k.slotIndex, k.name, v);
+            }
             skeleton.SetSlotsToSetupPose();
         }
 
-        protected override void clearSkin()
+        protected override void clearSkins()
         {
-            skeleton.SetSkin(skeletonData.DefaultSkin);
+            skeleton.Skin.Attachments.Clear();
             skeleton.SetSlotsToSetupPose();
         }
 
@@ -151,7 +192,7 @@ namespace SpineViewer.Spine.Implementations.SpineObject
         {
             if (name == EMPTY_ANIMATION)
                 animationState.SetAnimation(track, EmptyAnimation, false);
-            else if (animationNames.Contains(name))
+            else if (AnimationNames.Contains(name))
                 animationState.SetAnimation(track, name, true);
         }
 
@@ -159,14 +200,54 @@ namespace SpineViewer.Spine.Implementations.SpineObject
 
         public override float GetAnimationDuration(string name) { return skeletonData.FindAnimation(name)?.Duration ?? 0f; }
 
-        protected override RectangleF bounds
+        protected override RectangleF getCurrentBounds()
         {
-            get
+            float[] _ = [];
+            skeleton.GetBounds(out var x, out var y, out var w, out var h, ref _);
+            return new RectangleF(x, y, w, h);
+        }
+
+        protected override RectangleF getBounds()
+        {
+            // 初始化临时对象
+            var maxDuration = 0f;
+            var tmpSkeleton = new Skeleton(skeletonData) { Skin = new(Guid.NewGuid().ToString()) };
+            var tmpAnimationState = new AnimationState(animationStateData);
+            tmpSkeleton.ScaleX = skeleton.ScaleX;
+            tmpSkeleton.ScaleY = skeleton.ScaleY;
+            tmpSkeleton.X = skeleton.X;
+            tmpSkeleton.Y = skeleton.Y;
+            foreach (var (name, _) in skinLoadStatus.Where(e => e.Value))
             {
-                float[] _ = [];
-                skeleton.GetBounds(out var x, out var y, out var w, out var h, ref _);
-                return new RectangleF(x, y, w, h);
+                foreach (var (k, v) in skeletonData.FindSkin(name).Attachments)
+                    tmpSkeleton.Skin.AddAttachment(k.slotIndex, k.name, v);
             }
+            foreach (var tr in animationState.Tracks.Select((_, i) => i).Where(i => animationState.Tracks.Items[i] is not null))
+            {
+                var ani = animationState.GetCurrent(tr).Animation;
+                tmpAnimationState.SetAnimation(tr, ani, true);
+                if (ani.Duration > maxDuration) maxDuration = ani.Duration;
+            }
+            tmpSkeleton.SetSlotsToSetupPose();
+            tmpAnimationState.Update(0);
+            tmpAnimationState.Apply(tmpSkeleton);
+            tmpSkeleton.Update(0);
+            tmpSkeleton.UpdateWorldTransform();
+
+            // 按 10 帧每秒计算边框
+            var bounds = getCurrentBounds();
+            float[] _ = [];
+            for (float tick = 0, delta = 0.1f; tick < maxDuration; tick += delta)
+            {
+                tmpSkeleton.GetBounds(out var x, out var y, out var w, out var h, ref _);
+                bounds = bounds.Union(new(x, y, w, h));
+                tmpAnimationState.Update(delta);
+                tmpAnimationState.Apply(tmpSkeleton);
+                tmpSkeleton.Update(delta);
+                tmpSkeleton.UpdateWorldTransform();
+            }
+
+            return bounds;
         }
 
         protected override void update(float delta)
@@ -177,18 +258,6 @@ namespace SpineViewer.Spine.Implementations.SpineObject
             skeleton.UpdateWorldTransform();
         }
 
-        private SFML.Graphics.BlendMode GetSFMLBlendMode(BlendMode spineBlendMode)
-        {
-            return spineBlendMode switch
-            {
-                BlendMode.Normal => SFMLBlendMode.NormalPma,
-                BlendMode.Additive => SFMLBlendMode.AdditivePma,
-                BlendMode.Multiply => SFMLBlendMode.MultiplyPma,
-                BlendMode.Screen => SFMLBlendMode.ScreenPma,
-                _ => throw new NotImplementedException($"{spineBlendMode}"),
-            };
-        }
-
         protected override void draw(SFML.Graphics.RenderTarget target, SFML.Graphics.RenderStates states)
         {
             triangleVertices.Clear();
@@ -461,7 +530,7 @@ namespace SpineViewer.Spine.Implementations.SpineObject
             if (debugBounds)
             {
                 var vt = new SFML.Graphics.Vertex() { Color = BoundsColor };
-                var b = bounds;
+                var b = getCurrentBounds();
 
                 vt.Position.X = b.Left;
                 vt.Position.Y = b.Top;

SpineViewer/Spine/Implementations/SpineObject/SpineObject38.cs

@@ -1,12 +1,16 @@
 using System;
+using System.Collections.Frozen;
 using System.Collections.Generic;
+using System.Collections.Immutable;
 using System.Diagnostics;
 using System.IO;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
+using System.Xml.Linq;
 using SpineRuntime38;
 using SpineRuntime38.Attachments;
+using SpineViewer.Extensions;
 using SpineViewer.Utils;
 
 namespace SpineViewer.Spine.Implementations.SpineObject
@@ -14,7 +18,17 @@ namespace SpineViewer.Spine.Implementations.SpineObject
     [SpineImplementation(SpineVersion.V38)]
     internal class SpineObject38 : Spine.SpineObject
     {
-        private static readonly Animation EmptyAnimation = new(EMPTY_ANIMATION, [], 0);
+        private static SFML.Graphics.BlendMode GetSFMLBlendMode(BlendMode spineBlendMode)
+        {
+            return spineBlendMode switch
+            {
+                BlendMode.Normal => SFMLBlendMode.NormalPma,
+                BlendMode.Additive => SFMLBlendMode.AdditivePma,
+                BlendMode.Multiply => SFMLBlendMode.MultiplyPma,
+                BlendMode.Screen => SFMLBlendMode.ScreenPma,
+                _ => throw new NotImplementedException($"{spineBlendMode}"),
+            };
+        }
 
         private class TextureLoader : SpineRuntime38.TextureLoader
         {
@@ -38,18 +52,24 @@ namespace SpineViewer.Spine.Implementations.SpineObject
             }
         }
 
-        private static TextureLoader textureLoader = new();
+        private static readonly TextureLoader textureLoader = new();
+        private static readonly Animation EmptyAnimation = new(EMPTY_ANIMATION, [], 0);
 
-        private Atlas atlas;
-        private SkeletonBinary? skeletonBinary;
-        private SkeletonJson? skeletonJson;
-        private SkeletonData skeletonData;
-        private AnimationStateData animationStateData;
+        private readonly Atlas atlas;
+        private readonly SkeletonBinary? skeletonBinary;
+        private readonly SkeletonJson? skeletonJson;
+        private readonly SkeletonData skeletonData;
+        private readonly AnimationStateData animationStateData;
 
-        private Skeleton skeleton;
-        private AnimationState animationState;
+        private readonly Skeleton skeleton;
+        private readonly AnimationState animationState;
 
-        private SkeletonClipping clipping = new();
+        private readonly SkeletonClipping clipping = new();
+
+        /// <summary>
+        /// 所有插槽在所有皮肤中可用的附件集合
+        /// </summary>
+        private readonly Dictionary<string, Dictionary<string, Attachment>> slotAttachments = [];
 
         public SpineObject38(string skelPath, string atlasPath) : base(skelPath, atlasPath)
         {
@@ -70,18 +90,26 @@ namespace SpineViewer.Spine.Implementations.SpineObject
                     skeletonJson = new SkeletonJson(atlas);
                     skeletonData = skeletonJson.ReadSkeletonData(SkelPath);
                 }
-                catch
+                catch (Exception ex)
                 {
                     // 都不行就报错
-                    throw new InvalidDataException($"Unknown skeleton file format {SkelPath}");
+                    throw new InvalidDataException($"Unknown skeleton file format {SkelPath}", ex);
                 }
             }
 
-            foreach (var skin in skeletonData.Skins)
-                skinNames.Add(skin.Name);
-
-            foreach (var anime in skeletonData.Animations)
-                animationNames.Add(anime.Name);
+            foreach (var sk in skeletonData.Skins)
+            {
+                foreach (var (k, att) in sk.Attachments)
+                {
+                    var slotName = skeletonData.Slots.Items[k.SlotIndex].Name;
+                    if (!slotAttachments.TryGetValue(slotName, out var attachments))
+                        slotAttachments[slotName] = attachments = new() { [EMPTY_ATTACHMENT] = null };
+                    attachments[att.Name] = att;
+                }
+            }
+            SlotAttachmentNames = slotAttachments.ToFrozenDictionary(item => item.Key, item => item.Value.Keys.ToImmutableArray());
+            SkinNames = skeletonData.Skins.Select(v => v.Name).Where(v => v != "default").ToImmutableArray();
+            AnimationNames = [EMPTY_ANIMATION, .. skeletonData.Animations.Select(v => v.Name)];
 
             skeleton = new Skeleton(skeletonData) { Skin = new(Guid.NewGuid().ToString()) }; // 挂载一个空皮肤当作容器
             animationStateData = new AnimationStateData(skeletonData);
@@ -136,6 +164,16 @@ namespace SpineViewer.Spine.Implementations.SpineObject
             }
         }
 
+        protected override string getSlotAttachment(string slot) => skeleton.FindSlot(slot)?.Attachment?.Name ?? EMPTY_ATTACHMENT;
+
+        protected override void setSlotAttachment(string slot, string name)
+        {
+            if (slotAttachments.TryGetValue(slot, out var attachments) 
+                && attachments.TryGetValue(name, out var att) 
+                && skeleton.FindSlot(slot) is Slot s)
+                s.Attachment = att;
+        }
+
         protected override void addSkin(string name)
         {
             if (skeletonData.FindSkin(name) is Skin sk)
@@ -145,7 +183,7 @@ namespace SpineViewer.Spine.Implementations.SpineObject
             }
         }
 
-        protected override void clearSkin()
+        protected override void clearSkins()
         {
             skeleton.Skin.Clear();
             skeleton.SetSlotsToSetupPose();
@@ -159,7 +197,7 @@ namespace SpineViewer.Spine.Implementations.SpineObject
         {
             if (name == EMPTY_ANIMATION)
                 animationState.SetAnimation(track, EmptyAnimation, false);
-            else if (animationNames.Contains(name))
+            else if (AnimationNames.Contains(name))
                 animationState.SetAnimation(track, name, true);
         }
 
@@ -167,14 +205,50 @@ namespace SpineViewer.Spine.Implementations.SpineObject
 
         public override float GetAnimationDuration(string name) { return skeletonData.FindAnimation(name)?.Duration ?? 0f; }
 
-        protected override RectangleF bounds
+        protected override RectangleF getCurrentBounds()
         {
-            get
+            float[] _ = [];
+            skeleton.GetBounds(out var x, out var y, out var w, out var h, ref _);
+            return new RectangleF(x, y, w, h);
+        }
+
+        protected override RectangleF getBounds()
+        {
+            // 初始化临时对象
+            var maxDuration = 0f;
+            var tmpSkeleton = new Skeleton(skeletonData) { Skin = new(Guid.NewGuid().ToString()) };
+            var tmpAnimationState = new AnimationState(animationStateData);
+            tmpSkeleton.ScaleX = skeleton.ScaleX;
+            tmpSkeleton.ScaleY = skeleton.ScaleY;
+            tmpSkeleton.X = skeleton.X;
+            tmpSkeleton.Y = skeleton.Y;
+            foreach (var (sk, _) in skinLoadStatus.Where(e => e.Value)) tmpSkeleton.Skin.AddSkin(skeletonData.FindSkin(sk));
+            foreach (var tr in animationState.Tracks.Select((_, i) => i).Where(i => animationState.Tracks.Items[i] is not null)) 
             {
-                float[] _ = [];
-                skeleton.GetBounds(out var x, out var y, out var w, out var h, ref _);
-                return new RectangleF(x, y, w, h);
+                var ani = animationState.GetCurrent(tr).Animation;
+                tmpAnimationState.SetAnimation(tr, ani, true);
+                if (ani.Duration > maxDuration) maxDuration = ani.Duration;
             }
+            tmpSkeleton.SetSlotsToSetupPose();
+            tmpAnimationState.Update(0);
+            tmpAnimationState.Apply(tmpSkeleton);
+            tmpSkeleton.Update(0);
+            tmpSkeleton.UpdateWorldTransform();
+
+            // 按 10 帧每秒计算边框
+            var bounds = getCurrentBounds();
+            float[] _ = [];
+            for (float tick = 0, delta = 0.1f; tick < maxDuration; tick += delta)
+            {
+                tmpSkeleton.GetBounds(out var x, out var y, out var w, out var h, ref _);
+                bounds = bounds.Union(new(x, y, w, h));
+                tmpAnimationState.Update(delta);
+                tmpAnimationState.Apply(tmpSkeleton);
+                tmpSkeleton.Update(delta);
+                tmpSkeleton.UpdateWorldTransform();
+            }
+
+            return bounds;
         }
 
         protected override void update(float delta)
@@ -185,18 +259,6 @@ namespace SpineViewer.Spine.Implementations.SpineObject
             skeleton.UpdateWorldTransform();
         }
 
-        private SFML.Graphics.BlendMode GetSFMLBlendMode(BlendMode spineBlendMode)
-        {
-            return spineBlendMode switch
-            {
-                BlendMode.Normal => SFMLBlendMode.NormalPma,
-                BlendMode.Additive => SFMLBlendMode.AdditivePma,
-                BlendMode.Multiply => SFMLBlendMode.MultiplyPma,
-                BlendMode.Screen => SFMLBlendMode.ScreenPma,
-                _ => throw new NotImplementedException($"{spineBlendMode}"),
-            };
-        }
-
         protected override void draw(SFML.Graphics.RenderTarget target, SFML.Graphics.RenderStates states)
         {
             triangleVertices.Clear();
@@ -469,7 +531,7 @@ namespace SpineViewer.Spine.Implementations.SpineObject
             if (debugBounds)
             {
                 var vt = new SFML.Graphics.Vertex() { Color = BoundsColor };
-                var b = bounds;
+                var b = getCurrentBounds();
 
                 vt.Position.X = b.Left;
                 vt.Position.Y = b.Top; 

SpineViewer/Spine/Implementations/SpineObject/SpineObject40.cs

@@ -1,11 +1,14 @@
 using System;
+using System.Collections.Frozen;
 using System.Collections.Generic;
+using System.Collections.Immutable;
 using System.Diagnostics;
 using System.IO;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
 using SpineRuntime40;
+using SpineViewer.Extensions;
 using SpineViewer.Utils;
 
 namespace SpineViewer.Spine.Implementations.SpineObject
@@ -13,7 +16,17 @@ namespace SpineViewer.Spine.Implementations.SpineObject
     [SpineImplementation(SpineVersion.V40)]
     internal class SpineObject40 : Spine.SpineObject
     {
-        private static readonly Animation EmptyAnimation = new(EMPTY_ANIMATION, [], 0);
+        private static SFML.Graphics.BlendMode GetSFMLBlendMode(BlendMode spineBlendMode)
+        {
+            return spineBlendMode switch
+            {
+                BlendMode.Normal => SFMLBlendMode.NormalPma,
+                BlendMode.Additive => SFMLBlendMode.AdditivePma,
+                BlendMode.Multiply => SFMLBlendMode.MultiplyPma,
+                BlendMode.Screen => SFMLBlendMode.ScreenPma,
+                _ => throw new NotImplementedException($"{spineBlendMode}"),
+            };
+        }
 
         private class TextureLoader : SpineRuntime40.TextureLoader
         {
@@ -34,18 +47,24 @@ namespace SpineViewer.Spine.Implementations.SpineObject
             }
         }
 
-        private static TextureLoader textureLoader = new();
+        private static readonly TextureLoader textureLoader = new();
+        private static readonly Animation EmptyAnimation = new(EMPTY_ANIMATION, [], 0);
 
-        private Atlas atlas;
-        private SkeletonBinary? skeletonBinary;
-        private SkeletonJson? skeletonJson;
-        private SkeletonData skeletonData;
-        private AnimationStateData animationStateData;
+        private readonly Atlas atlas;
+        private readonly SkeletonBinary? skeletonBinary;
+        private readonly SkeletonJson? skeletonJson;
+        private readonly SkeletonData skeletonData;
+        private readonly AnimationStateData animationStateData;
 
-        private Skeleton skeleton;
-        private AnimationState animationState;
+        private readonly Skeleton skeleton;
+        private readonly AnimationState animationState;
 
-        private SkeletonClipping clipping = new();
+        private readonly SkeletonClipping clipping = new();
+
+        /// <summary>
+        /// 所有插槽在所有皮肤中可用的附件集合
+        /// </summary>
+        private readonly Dictionary<string, Dictionary<string, Attachment>> slotAttachments = [];
 
         public SpineObject40(string skelPath, string atlasPath) : base(skelPath, atlasPath)
         {
@@ -73,11 +92,20 @@ namespace SpineViewer.Spine.Implementations.SpineObject
                 }
             }
 
-            foreach (var skin in skeletonData.Skins)
-                skinNames.Add(skin.Name);
-
-            foreach (var anime in skeletonData.Animations)
-                animationNames.Add(anime.Name);
+            foreach (var sk in skeletonData.Skins)
+            {
+                foreach (var e in sk.Attachments)
+                {
+                    var slotName = skeletonData.Slots.Items[e.SlotIndex].Name;
+                    var att = e.Attachment;
+                    if (!slotAttachments.TryGetValue(slotName, out var attachments))
+                        slotAttachments[slotName] = attachments = new() { [EMPTY_ATTACHMENT] = null };
+                    attachments[att.Name] = att;
+                }
+            }
+            SlotAttachmentNames = slotAttachments.ToFrozenDictionary(item => item.Key, item => item.Value.Keys.ToImmutableArray());
+            SkinNames = skeletonData.Skins.Select(v => v.Name).Where(v => v != "default").ToImmutableArray();
+            AnimationNames = [EMPTY_ANIMATION, .. skeletonData.Animations.Select(v => v.Name)];
 
             skeleton = new Skeleton(skeletonData) { Skin = new(Guid.NewGuid().ToString()) }; // 挂载一个空皮肤当作容器
             animationStateData = new AnimationStateData(skeletonData);
@@ -132,6 +160,16 @@ namespace SpineViewer.Spine.Implementations.SpineObject
             }
         }
 
+        protected override string getSlotAttachment(string slot) => skeleton.FindSlot(slot)?.Attachment?.Name ?? EMPTY_ATTACHMENT;
+
+        protected override void setSlotAttachment(string slot, string name)
+        {
+            if (slotAttachments.TryGetValue(slot, out var attachments)
+                && attachments.TryGetValue(name, out var att)
+                && skeleton.FindSlot(slot) is Slot s)
+                s.Attachment = att;
+        }
+
         protected override void addSkin(string name)
         {
             if (skeletonData.FindSkin(name) is Skin sk)
@@ -141,7 +179,7 @@ namespace SpineViewer.Spine.Implementations.SpineObject
             }
         }
 
-        protected override void clearSkin()
+        protected override void clearSkins()
         {
             skeleton.Skin.Clear();
             skeleton.SetSlotsToSetupPose();
@@ -155,7 +193,7 @@ namespace SpineViewer.Spine.Implementations.SpineObject
         {
             if (name == EMPTY_ANIMATION)
                 animationState.SetAnimation(track, EmptyAnimation, false);
-            else if (animationNames.Contains(name))
+            else if (AnimationNames.Contains(name))
                 animationState.SetAnimation(track, name, true);
         }
 
@@ -163,14 +201,50 @@ namespace SpineViewer.Spine.Implementations.SpineObject
 
         public override float GetAnimationDuration(string name) { return skeletonData.FindAnimation(name)?.Duration ?? 0f; }
 
-        protected override RectangleF bounds
+        protected override RectangleF getCurrentBounds()
         {
-            get
+            float[] _ = [];
+            skeleton.GetBounds(out var x, out var y, out var w, out var h, ref _);
+            return new RectangleF(x, y, w, h);
+        }
+        
+        protected override RectangleF getBounds()
+        {
+            // 初始化临时对象
+            var maxDuration = 0f;
+            var tmpSkeleton = new Skeleton(skeletonData) { Skin = new(Guid.NewGuid().ToString()) };
+            var tmpAnimationState = new AnimationState(animationStateData);
+            tmpSkeleton.ScaleX = skeleton.ScaleX;
+            tmpSkeleton.ScaleY = skeleton.ScaleY;
+            tmpSkeleton.X = skeleton.X;
+            tmpSkeleton.Y = skeleton.Y;
+            foreach (var (sk, _) in skinLoadStatus.Where(e => e.Value)) tmpSkeleton.Skin.AddSkin(skeletonData.FindSkin(sk));
+            foreach (var tr in animationState.Tracks.Select((_, i) => i).Where(i => animationState.Tracks.Items[i] is not null))
             {
-                float[] _ = [];
-                skeleton.GetBounds(out var x, out var y, out var w, out var h, ref _);
-                return new RectangleF(x, y, w, h);
+                var ani = animationState.GetCurrent(tr).Animation;
+                tmpAnimationState.SetAnimation(tr, ani, true);
+                if (ani.Duration > maxDuration) maxDuration = ani.Duration;
             }
+            tmpSkeleton.SetSlotsToSetupPose();
+            tmpAnimationState.Update(0);
+            tmpAnimationState.Apply(tmpSkeleton);
+            tmpSkeleton.Update(0);
+            tmpSkeleton.UpdateWorldTransform();
+
+            // 按 10 帧每秒计算边框
+            var bounds = getCurrentBounds();
+            float[] _ = [];
+            for (float tick = 0, delta = 0.1f; tick < maxDuration; tick += delta)
+            {
+                tmpSkeleton.GetBounds(out var x, out var y, out var w, out var h, ref _);
+                bounds = bounds.Union(new(x, y, w, h));
+                tmpAnimationState.Update(delta);
+                tmpAnimationState.Apply(tmpSkeleton);
+                tmpSkeleton.Update(delta);
+                tmpSkeleton.UpdateWorldTransform();
+            }
+
+            return bounds;
         }
 
         protected override void update(float delta)
@@ -181,18 +255,6 @@ namespace SpineViewer.Spine.Implementations.SpineObject
             skeleton.UpdateWorldTransform();
         }
 
-        private SFML.Graphics.BlendMode GetSFMLBlendMode(BlendMode spineBlendMode)
-        {
-            return spineBlendMode switch
-            {
-                BlendMode.Normal => SFMLBlendMode.NormalPma,
-                BlendMode.Additive => SFMLBlendMode.AdditivePma,
-                BlendMode.Multiply => SFMLBlendMode.MultiplyPma,
-                BlendMode.Screen => SFMLBlendMode.ScreenPma,
-                _ => throw new NotImplementedException($"{spineBlendMode}"),
-            };
-        }
-
         protected override void draw(SFML.Graphics.RenderTarget target, SFML.Graphics.RenderStates states)
         {
             triangleVertices.Clear();
@@ -465,7 +527,7 @@ namespace SpineViewer.Spine.Implementations.SpineObject
             if (debugBounds)
             {
                 var vt = new SFML.Graphics.Vertex() { Color = BoundsColor };
-                var b = bounds;
+                var b = getCurrentBounds();
 
                 vt.Position.X = b.Left;
                 vt.Position.Y = b.Top;

SpineViewer/Spine/Implementations/SpineObject/SpineObject41.cs

@@ -1,11 +1,14 @@
 using System;
+using System.Collections.Frozen;
 using System.Collections.Generic;
+using System.Collections.Immutable;
 using System.Diagnostics;
 using System.IO;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
 using SpineRuntime41;
+using SpineViewer.Extensions;
 using SpineViewer.Utils;
 
 namespace SpineViewer.Spine.Implementations.SpineObject
@@ -13,7 +16,17 @@ namespace SpineViewer.Spine.Implementations.SpineObject
     [SpineImplementation(SpineVersion.V41)]
     internal class SpineObject41 : Spine.SpineObject
     {
-        private static readonly Animation EmptyAnimation = new(EMPTY_ANIMATION, [], 0);
+        private static SFML.Graphics.BlendMode GetSFMLBlendMode(BlendMode spineBlendMode)
+        {
+            return spineBlendMode switch
+            {
+                BlendMode.Normal => SFMLBlendMode.NormalPma,
+                BlendMode.Additive => SFMLBlendMode.AdditivePma,
+                BlendMode.Multiply => SFMLBlendMode.MultiplyPma,
+                BlendMode.Screen => SFMLBlendMode.ScreenPma,
+                _ => throw new NotImplementedException($"{spineBlendMode}"),
+            };
+        }
 
         private class TextureLoader : SpineRuntime41.TextureLoader
         {
@@ -35,17 +48,23 @@ namespace SpineViewer.Spine.Implementations.SpineObject
         }
 
         private static TextureLoader textureLoader = new();
+        private static readonly Animation EmptyAnimation = new(EMPTY_ANIMATION, [], 0);
 
-        private Atlas atlas;
-        private SkeletonBinary? skeletonBinary;
-        private SkeletonJson? skeletonJson;
-        private SkeletonData skeletonData;
-        private AnimationStateData animationStateData;
+        private readonly Atlas atlas;
+        private readonly SkeletonBinary? skeletonBinary;
+        private readonly SkeletonJson? skeletonJson;
+        private readonly SkeletonData skeletonData;
+        private readonly AnimationStateData animationStateData;
 
-        private Skeleton skeleton;
-        private AnimationState animationState;
+        private readonly Skeleton skeleton;
+        private readonly AnimationState animationState;
 
-        private SkeletonClipping clipping = new();
+        private readonly SkeletonClipping clipping = new();
+
+        /// <summary>
+        /// 所有插槽在所有皮肤中可用的附件集合
+        /// </summary>
+        private readonly Dictionary<string, Dictionary<string, Attachment>> slotAttachments = [];
 
         public SpineObject41(string skelPath, string atlasPath) : base(skelPath, atlasPath)
         {
@@ -73,11 +92,20 @@ namespace SpineViewer.Spine.Implementations.SpineObject
                 }
             }
 
-            foreach (var skin in skeletonData.Skins)
-                skinNames.Add(skin.Name);
-
-            foreach (var anime in skeletonData.Animations)
-                animationNames.Add(anime.Name);
+            foreach (var sk in skeletonData.Skins)
+            {
+                foreach (var e in sk.Attachments)
+                {
+                    var slotName = skeletonData.Slots.Items[e.SlotIndex].Name;
+                    var att = e.Attachment;
+                    if (!slotAttachments.TryGetValue(slotName, out var attachments))
+                        slotAttachments[slotName] = attachments = new() { [EMPTY_ATTACHMENT] = null };
+                    attachments[att.Name] = att;
+                }
+            }
+            SlotAttachmentNames = slotAttachments.ToFrozenDictionary(item => item.Key, item => item.Value.Keys.ToImmutableArray());
+            SkinNames = skeletonData.Skins.Select(v => v.Name).Where(v => v != "default").ToImmutableArray();
+            AnimationNames = [EMPTY_ANIMATION, .. skeletonData.Animations.Select(v => v.Name)];
 
             skeleton = new Skeleton(skeletonData) { Skin = new(Guid.NewGuid().ToString()) }; // 挂载一个空皮肤当作容器
             animationStateData = new AnimationStateData(skeletonData);
@@ -132,6 +160,16 @@ namespace SpineViewer.Spine.Implementations.SpineObject
             }
         }
 
+        protected override string getSlotAttachment(string slot) => skeleton.FindSlot(slot)?.Attachment?.Name ?? EMPTY_ATTACHMENT;
+
+        protected override void setSlotAttachment(string slot, string name)
+        {
+            if (slotAttachments.TryGetValue(slot, out var attachments)
+                && attachments.TryGetValue(name, out var att)
+                && skeleton.FindSlot(slot) is Slot s)
+                s.Attachment = att;
+        }
+
         protected override void addSkin(string name)
         {
             if (skeletonData.FindSkin(name) is Skin sk)
@@ -141,7 +179,7 @@ namespace SpineViewer.Spine.Implementations.SpineObject
             }
         }
 
-        protected override void clearSkin()
+        protected override void clearSkins()
         {
             skeleton.Skin.Clear();
             skeleton.SetSlotsToSetupPose();
@@ -155,7 +193,7 @@ namespace SpineViewer.Spine.Implementations.SpineObject
         {
             if (name == EMPTY_ANIMATION)
                 animationState.SetAnimation(track, EmptyAnimation, false);
-            else if (animationNames.Contains(name))
+            else if (AnimationNames.Contains(name))
                 animationState.SetAnimation(track, name, true);
         }
 
@@ -163,14 +201,49 @@ namespace SpineViewer.Spine.Implementations.SpineObject
 
         public override float GetAnimationDuration(string name) { return skeletonData.FindAnimation(name)?.Duration ?? 0f; }
 
-        protected override RectangleF bounds
+        protected override RectangleF getCurrentBounds()
         {
-            get
+            float[] _ = [];
+            skeleton.GetBounds(out var x, out var y, out var w, out var h, ref _);
+            return new RectangleF(x, y, w, h);
+        }
+
+        protected override RectangleF getBounds()
+        {
+            // 初始化临时对象
+            var maxDuration = 0f;
+            var tmpSkeleton = new Skeleton(skeletonData) { Skin = new(Guid.NewGuid().ToString()) };
+            var tmpAnimationState = new AnimationState(animationStateData);
+            tmpSkeleton.ScaleX = skeleton.ScaleX;
+            tmpSkeleton.ScaleY = skeleton.ScaleY;
+            tmpSkeleton.X = skeleton.X;
+            tmpSkeleton.Y = skeleton.Y;
+            foreach (var (sk, _) in skinLoadStatus.Where(e => e.Value)) tmpSkeleton.Skin.AddSkin(skeletonData.FindSkin(sk));
+            foreach (var tr in animationState.Tracks.Select((_, i) => i).Where(i => animationState.Tracks.Items[i] is not null))
             {
-                float[] _ = [];
-                skeleton.GetBounds(out var x, out var y, out var w, out var h, ref _);
-                return new RectangleF(x, y, w, h);
+                var ani = animationState.GetCurrent(tr).Animation;
+                tmpAnimationState.SetAnimation(tr, ani, true);
+                if (ani.Duration > maxDuration) maxDuration = ani.Duration;
             }
+            tmpSkeleton.SetSlotsToSetupPose();
+            tmpAnimationState.Update(0);
+            tmpAnimationState.Apply(tmpSkeleton);
+            //tmpSkeleton.Update(0);
+            tmpSkeleton.UpdateWorldTransform();
+
+            // 按 10 帧每秒计算边框
+            var bounds = getCurrentBounds();
+            float[] _ = [];
+            for (float tick = 0, delta = 0.1f; tick < maxDuration; tick += delta)
+            {
+                tmpSkeleton.GetBounds(out var x, out var y, out var w, out var h, ref _);
+                bounds = bounds.Union(new(x, y, w, h));
+                tmpAnimationState.Update(delta);
+                tmpAnimationState.Apply(tmpSkeleton);
+                tmpSkeleton.UpdateWorldTransform();
+            }
+
+            return bounds;
         }
 
         protected override void update(float delta)
@@ -181,18 +254,6 @@ namespace SpineViewer.Spine.Implementations.SpineObject
             skeleton.UpdateWorldTransform();
         }
 
-        private SFML.Graphics.BlendMode GetSFMLBlendMode(BlendMode spineBlendMode)
-        {
-            return spineBlendMode switch
-            {
-                BlendMode.Normal => SFMLBlendMode.NormalPma,
-                BlendMode.Additive => SFMLBlendMode.AdditivePma,
-                BlendMode.Multiply => SFMLBlendMode.MultiplyPma,
-                BlendMode.Screen => SFMLBlendMode.ScreenPma,
-                _ => throw new NotImplementedException($"{spineBlendMode}"),
-            };
-        }
-
         protected override void draw(SFML.Graphics.RenderTarget target, SFML.Graphics.RenderStates states)
         {
             triangleVertices.Clear();
@@ -465,7 +526,7 @@ namespace SpineViewer.Spine.Implementations.SpineObject
             if (debugBounds)
             {
                 var vt = new SFML.Graphics.Vertex() { Color = BoundsColor };
-                var b = bounds;
+                var b = getCurrentBounds();
 
                 vt.Position.X = b.Left;
                 vt.Position.Y = b.Top;

SpineViewer/Spine/Implementations/SpineObject/SpineObject42.cs

@@ -1,19 +1,32 @@
 using System;
+using System.Collections.Frozen;
 using System.Collections.Generic;
+using System.Collections.Immutable;
 using System.Diagnostics;
 using System.IO;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
 using SpineRuntime42;
+using SpineViewer.Extensions;
 using SpineViewer.Utils;
 
 namespace SpineViewer.Spine.Implementations.SpineObject
 {
     [SpineImplementation(SpineVersion.V42)]
-    internal class Spineobject42 : Spine.SpineObject
+    internal class SpineObject42 : Spine.SpineObject
     {
-        private static readonly Animation EmptyAnimation = new(EMPTY_ANIMATION, [], 0);
+        private SFML.Graphics.BlendMode GetSFMLBlendMode(BlendMode spineBlendMode)
+        {
+            return spineBlendMode switch
+            {
+                BlendMode.Normal => SFMLBlendMode.NormalPma,
+                BlendMode.Additive => SFMLBlendMode.AdditivePma,
+                BlendMode.Multiply => SFMLBlendMode.MultiplyPma,
+                BlendMode.Screen => SFMLBlendMode.ScreenPma,
+                _ => throw new NotImplementedException($"{spineBlendMode}"),
+            };
+        }
 
         private class TextureLoader : SpineRuntime42.TextureLoader
         {
@@ -34,20 +47,26 @@ namespace SpineViewer.Spine.Implementations.SpineObject
             }
         }
 
-        private static TextureLoader textureLoader = new();
+        private static readonly TextureLoader textureLoader = new();
+        private static readonly Animation EmptyAnimation = new(EMPTY_ANIMATION, [], 0);
 
-        private Atlas atlas;
-        private SkeletonBinary? skeletonBinary;
-        private SkeletonJson? skeletonJson;
-        private SkeletonData skeletonData;
-        private AnimationStateData animationStateData;
+        private readonly Atlas atlas;
+        private readonly SkeletonBinary? skeletonBinary;
+        private readonly SkeletonJson? skeletonJson;
+        private readonly SkeletonData skeletonData;
+        private readonly AnimationStateData animationStateData;
 
-        private Skeleton skeleton;
-        private AnimationState animationState;
+        private readonly Skeleton skeleton;
+        private readonly AnimationState animationState;
 
-        private SkeletonClipping clipping = new();
+        private readonly SkeletonClipping clipping = new();
 
-        public Spineobject42(string skelPath, string atlasPath) : base(skelPath, atlasPath)
+        /// <summary>
+        /// 所有插槽在所有皮肤中可用的附件集合
+        /// </summary>
+        private readonly Dictionary<string, Dictionary<string, Attachment>> slotAttachments = [];
+
+        public SpineObject42(string skelPath, string atlasPath) : base(skelPath, atlasPath)
         {
             atlas = new Atlas(AtlasPath, textureLoader);
             try
@@ -73,11 +92,20 @@ namespace SpineViewer.Spine.Implementations.SpineObject
                 }
             }
 
-            foreach (var skin in skeletonData.Skins)
-                skinNames.Add(skin.Name);
-
-            foreach (var anime in skeletonData.Animations)
-                animationNames.Add(anime.Name);
+            foreach (var sk in skeletonData.Skins)
+            {
+                foreach (var e in sk.Attachments)
+                {
+                    var slotName = skeletonData.Slots.Items[e.SlotIndex].Name;
+                    var att = e.Attachment;
+                    if (!slotAttachments.TryGetValue(slotName, out var attachments))
+                        slotAttachments[slotName] = attachments = new() { [EMPTY_ATTACHMENT] = null };
+                    attachments[att.Name] = att;
+                }
+            }
+            SlotAttachmentNames = slotAttachments.ToFrozenDictionary(item => item.Key, item => item.Value.Keys.ToImmutableArray());
+            SkinNames = skeletonData.Skins.Select(v => v.Name).Where(v => v != "default").ToImmutableArray();
+            AnimationNames = [EMPTY_ANIMATION, .. skeletonData.Animations.Select(v => v.Name)];
 
             skeleton = new Skeleton(skeletonData) { Skin = new(Guid.NewGuid().ToString()) }; // 挂载一个空皮肤当作容器
             animationStateData = new AnimationStateData(skeletonData);
@@ -132,6 +160,16 @@ namespace SpineViewer.Spine.Implementations.SpineObject
             }
         }
 
+        protected override string getSlotAttachment(string slot) => skeleton.FindSlot(slot)?.Attachment?.Name ?? EMPTY_ATTACHMENT;
+
+        protected override void setSlotAttachment(string slot, string name)
+        {
+            if (slotAttachments.TryGetValue(slot, out var attachments)
+                && attachments.TryGetValue(name, out var att)
+                && skeleton.FindSlot(slot) is Slot s)
+                s.Attachment = att;
+        }
+
         protected override void addSkin(string name)
         {
             if (skeletonData.FindSkin(name) is Skin sk)
@@ -141,7 +179,7 @@ namespace SpineViewer.Spine.Implementations.SpineObject
             }
         }
 
-        protected override void clearSkin()
+        protected override void clearSkins()
         {
             skeleton.Skin.Clear();
             skeleton.SetSlotsToSetupPose();
@@ -155,7 +193,7 @@ namespace SpineViewer.Spine.Implementations.SpineObject
         {
             if (name == EMPTY_ANIMATION)
                 animationState.SetAnimation(track, EmptyAnimation, false);
-            else if (animationNames.Contains(name))
+            else if (AnimationNames.Contains(name))
                 animationState.SetAnimation(track, name, true);
         }
 
@@ -163,14 +201,50 @@ namespace SpineViewer.Spine.Implementations.SpineObject
 
         public override float GetAnimationDuration(string name) { return skeletonData.FindAnimation(name)?.Duration ?? 0f; }
 
-        protected override RectangleF bounds
+        protected override RectangleF getCurrentBounds()
         {
-            get
+            float[] _ = [];
+            skeleton.GetBounds(out var x, out var y, out var w, out var h, ref _);
+            return new RectangleF(x, y, w, h);
+        }
+
+        protected override RectangleF getBounds()
+        {
+            // 初始化临时对象
+            var maxDuration = 0f;
+            var tmpSkeleton = new Skeleton(skeletonData) { Skin = new(Guid.NewGuid().ToString()) };
+            var tmpAnimationState = new AnimationState(animationStateData);
+            tmpSkeleton.ScaleX = skeleton.ScaleX;
+            tmpSkeleton.ScaleY = skeleton.ScaleY;
+            tmpSkeleton.X = skeleton.X;
+            tmpSkeleton.Y = skeleton.Y;
+            foreach (var (sk, _) in skinLoadStatus.Where(e => e.Value)) tmpSkeleton.Skin.AddSkin(skeletonData.FindSkin(sk));
+            foreach (var tr in animationState.Tracks.Select((_, i) => i).Where(i => animationState.Tracks.Items[i] is not null))
             {
-                float[] _ = [];
-                skeleton.GetBounds(out var x, out var y, out var w, out var h, ref _);
-                return new RectangleF(x, y, w, h);
+                var ani = animationState.GetCurrent(tr).Animation;
+                tmpAnimationState.SetAnimation(tr, ani, true);
+                if (ani.Duration > maxDuration) maxDuration = ani.Duration;
             }
+            tmpSkeleton.SetSlotsToSetupPose();
+            tmpAnimationState.Update(0);
+            tmpAnimationState.Apply(tmpSkeleton);
+            tmpSkeleton.Update(0);
+            tmpSkeleton.UpdateWorldTransform(Skeleton.Physics.Update);
+
+            // 按 10 帧每秒计算边框
+            var bounds = getCurrentBounds();
+            float[] _ = [];
+            for (float tick = 0, delta = 0.1f; tick < maxDuration; tick += delta)
+            {
+                tmpSkeleton.GetBounds(out var x, out var y, out var w, out var h, ref _);
+                bounds = bounds.Union(new(x, y, w, h));
+                tmpAnimationState.Update(delta);
+                tmpAnimationState.Apply(tmpSkeleton);
+                tmpSkeleton.Update(delta);
+                tmpSkeleton.UpdateWorldTransform(Skeleton.Physics.Update);
+            }
+
+            return bounds;
         }
 
         protected override void update(float delta)
@@ -181,18 +255,6 @@ namespace SpineViewer.Spine.Implementations.SpineObject
             skeleton.UpdateWorldTransform(Skeleton.Physics.Update);
         }
 
-        private SFML.Graphics.BlendMode GetSFMLBlendMode(BlendMode spineBlendMode)
-        {
-            return spineBlendMode switch
-            {
-                BlendMode.Normal => SFMLBlendMode.NormalPma,
-                BlendMode.Additive => SFMLBlendMode.AdditivePma,
-                BlendMode.Multiply => SFMLBlendMode.MultiplyPma,
-                BlendMode.Screen => SFMLBlendMode.ScreenPma,
-                _ => throw new NotImplementedException($"{spineBlendMode}"),
-            };
-        }
-
         protected override void draw(SFML.Graphics.RenderTarget target, SFML.Graphics.RenderStates states)
         {
             triangleVertices.Clear();
@@ -465,7 +527,7 @@ namespace SpineViewer.Spine.Implementations.SpineObject
             if (debugBounds)
             {
                 var vt = new SFML.Graphics.Vertex() { Color = BoundsColor };
-                var b = bounds;
+                var b = getCurrentBounds();
 
                 vt.Position.X = b.Left;
                 vt.Position.Y = b.Top;

SpineViewer/Spine/SpineExporter/Exporter.cs

@@ -25,11 +25,26 @@ namespace SpineViewer.Spine.SpineExporter
         /// <summary>
         /// 可用于文件名的时间戳字符串
         /// </summary>
-        protected readonly string timestamp = DateTime.Now.ToString("yyMMddHHmmss");
+        protected string timestamp = DateTime.Now.ToString("yyMMddHHmmss");
+
+        /// <summary>
+        /// 非自动分辨率下导出视区缓存
+        /// </summary>
+        private SFML.Graphics.View? exportViewCache = null;
+
+        /// <summary>
+        /// 模型分辨率缓存
+        /// </summary>
+        private readonly Dictionary<string, Size> spineResolutionCache = [];
+
+        /// <summary>
+        /// 自动分辨率下每个模型的导出视区缓存
+        /// </summary>
+        private readonly Dictionary<string, SFML.Graphics.View> spineViewCache = [];
 
         ~Exporter() { Dispose(false); }
         public void Dispose() { Dispose(true); GC.SuppressFinalize(this); }
-        protected virtual void Dispose(bool disposing) { View.Dispose(); }
+        protected virtual void Dispose(bool disposing) { PreviewerView.Dispose(); }
 
         /// <summary>
         /// 输出文件夹
@@ -44,13 +59,29 @@ namespace SpineViewer.Spine.SpineExporter
         /// <summary>
         /// 画面分辨率
         /// </summary>
-        public Size Resolution { get; set; } = new(100, 100);
+        public Size Resolution 
+        {
+            get => resolution;
+            set
+            {
+                if (value.Width <= 0) value.Width = 100;
+                if (value.Height <= 0) value.Height = 100;
+                resolution = value;
+                exportResolution = new(value.Width + Margin.Horizontal, value.Height + Margin.Vertical);
+            }
+        }
+        private Size resolution = new(100, 100);
 
         /// <summary>
-        /// 渲染视窗, 接管对象生命周期
+        /// 包含边缘的分辨率
         /// </summary>
-        public SFML.Graphics.View View { get => view; set { view.Dispose(); view = value; } }
-        private SFML.Graphics.View view = new();
+        private Size exportResolution = new(100, 100);
+
+        /// <summary>
+        /// 预览画面的视区
+        /// </summary>
+        public SFML.Graphics.View PreviewerView { get => previewerView; set { previewerView.Dispose(); previewerView = new(value); } }
+        private SFML.Graphics.View previewerView = new();
 
         /// <summary>
         /// 是否仅渲染选中
@@ -71,7 +102,7 @@ namespace SpineViewer.Spine.SpineExporter
                 bcPma.R = (byte)(bcPma.R * a);
                 bcPma.G = (byte)(bcPma.G * a);
                 bcPma.B = (byte)(bcPma.B * a);
-                BackgroundColorPma = bcPma;
+                backgroundColorPma = bcPma;
             }
         }
         private SFML.Graphics.Color backgroundColor = SFML.Graphics.Color.Transparent;
@@ -79,16 +110,112 @@ namespace SpineViewer.Spine.SpineExporter
         /// <summary>
         /// 预乘后的背景颜色
         /// </summary>
-        public SFML.Graphics.Color BackgroundColorPma { get; private set; } = SFML.Graphics.Color.Transparent;
+        private SFML.Graphics.Color backgroundColorPma = SFML.Graphics.Color.Transparent;
 
         /// <summary>
-        /// 获取供渲染的 SFML.Graphics.RenderTexture
+        /// 四周边缘距离, 单位为像素
         /// </summary>
-        private SFML.Graphics.RenderTexture GetRenderTexture()
+        public Padding Margin
         {
-            var tex = new SFML.Graphics.RenderTexture((uint)Resolution.Width, (uint)Resolution.Height);
-            tex.Clear(SFML.Graphics.Color.Transparent);
-            tex.SetView(View);
+            get => margin;
+            set
+            {
+                if (value.Left < 0) value.Left = 0;
+                if (value.Right < 0) value.Right = 0;
+                if (value.Top < 0) value.Top = 0;
+                if (value.Bottom < 0) value.Bottom = 0;
+                margin = value;
+                exportResolution = new(Resolution.Width + value.Horizontal, Resolution.Height + value.Vertical);
+            }
+        }
+        private Padding margin = new(0);
+
+        /// <summary>
+        /// 四周填充距离, 单位为像素, 自动分辨率下忽略该值
+        /// </summary>
+        public Padding Padding
+        {
+            get => padding;
+            set
+            {
+                if (value.Left < 0) value.Left = 0;
+                if (value.Right < 0) value.Right = 0;
+                if (value.Top < 0) value.Top = 0;
+                if (value.Bottom < 0) value.Bottom = 0;
+                padding = value;
+            }
+        }
+        private Padding padding = new(0);
+
+        /// <summary>
+        /// 在使用预览画面分辨率的情况下, 允许内容溢出到边缘和填充区域, 自动分辨率下忽略该值
+        /// </summary>
+        public bool AllowContentOverflow { get; set; } = false;
+
+        /// <summary>
+        /// 自动分辨率, 将会忽略预览画面的分辨率和预览画面视区, 使用模型自身的包围盒, 四周填充和内容溢出会被忽略
+        /// </summary>
+        public bool AutoResolution { get; set; } = false;
+
+        /// <summary>
+        /// 获取导出渲染对象, 如果提供了模型列表则分辨率为模型大小, 否则是预览画面大小
+        /// </summary>
+        private SFML.Graphics.RenderTexture GetRenderTexture(SpineObject[]? spinesToRender = null)
+        {
+            uint width;
+            uint height;
+            SFML.Graphics.View view;
+
+            if (spinesToRender is null)
+            {
+                if (exportViewCache is null)
+                {
+                    // 记录缓存
+                    exportViewCache = new SFML.Graphics.View(PreviewerView);
+                    if (AllowContentOverflow)
+                    {
+                        var canvasBounds = exportViewCache.GetBounds().GetCanvasBounds(Resolution, Margin, Padding);
+                        exportViewCache.Center = new(canvasBounds.X + canvasBounds.Width / 2, canvasBounds.Y + canvasBounds.Height / 2);
+                        exportViewCache.Size = new(canvasBounds.Width, canvasBounds.Height);
+                    }
+                    else
+                    {
+                        exportViewCache.SetViewport(Resolution, Margin, Padding);
+                    }
+                }
+                width = (uint)exportResolution.Width;
+                height = (uint)exportResolution.Height;
+                view = exportViewCache;
+            }
+            else
+            {
+                var cacheKey = string.Join("|", spinesToRender.Select(v => v.ID));
+
+                // 记录缓存
+                if (!spineViewCache.TryGetValue(cacheKey, out var spineView))
+                {
+                    var spineBounds = spinesToRender[0].GetBounds();
+                    foreach (var sp in spinesToRender.Skip(1))
+                        spineBounds = spineBounds.Union(sp.GetBounds());
+
+                    var spineResolution = new Size((int)Math.Ceiling(spineBounds.Width), (int)Math.Ceiling(spineBounds.Height));
+                    var canvasBounds = spineBounds.GetCanvasBounds(spineResolution, Margin); // 忽略填充
+
+                    spineResolutionCache[cacheKey] = new(spineResolution.Width + Margin.Horizontal, spineResolution.Height + Margin.Vertical);
+                    spineViewCache[cacheKey] = spineView = new SFML.Graphics.View(
+                        new(canvasBounds.X + canvasBounds.Width / 2, canvasBounds.Y + canvasBounds.Height / 2),
+                        new(canvasBounds.Width, -canvasBounds.Height)
+                    );
+
+                    logger.Info("Auto resolusion: ({}, {})", spineResolution.Width, spineResolution.Height);
+                }
+                width = (uint)spineResolutionCache[cacheKey].Width;
+                height = (uint)spineResolutionCache[cacheKey].Height;
+                view = spineViewCache[cacheKey];
+            }
+
+            var tex = new SFML.Graphics.RenderTexture(width, height);
+            tex.SetView(view);
             return tex;
         }
 
@@ -103,10 +230,10 @@ namespace SpineViewer.Spine.SpineExporter
         protected SFMLImageVideoFrame GetFrame(SpineObject[] spinesToRender)
         {
             // RenderTexture 必须临时创建, 随用随取, 防止出现跨线程的情况
-            using var texPma = GetRenderTexture();
+            using var texPma = GetRenderTexture(AutoResolution ? spinesToRender : null);
 
             // 先将预乘结果准确绘制出来, 注意背景色也应当是预乘的
-            texPma.Clear(BackgroundColorPma);
+            texPma.Clear(backgroundColorPma);
             foreach (var spine in spinesToRender) texPma.Draw(spine);
             texPma.Display();
 
@@ -131,7 +258,7 @@ namespace SpineViewer.Spine.SpineExporter
                 st.Shader = SFMLShader.InversePma;
 
                 // 在最终结果上二次渲染非预乘画面
-                using var tex = GetRenderTexture();
+                using var tex = GetRenderTexture(AutoResolution ? spinesToRender : null);
 
                 // 将非预乘结果覆盖式绘制在目标对象上, 注意背景色应该用非预乘的
                 tex.Clear(BackgroundColor);
@@ -171,6 +298,15 @@ namespace SpineViewer.Spine.SpineExporter
             return null;
         }
 
+        private void ClearCache()
+        {
+            exportViewCache?.Dispose();
+            exportViewCache = null;
+            spineResolutionCache.Clear();
+            foreach (var v in spineViewCache.Values) v.Dispose();
+            spineViewCache.Clear();
+        }
+
         /// <summary>
         /// 执行导出
         /// </summary>
@@ -179,13 +315,19 @@ namespace SpineViewer.Spine.SpineExporter
         /// <exception cref="ArgumentException"></exception>
         public virtual void Export(SpineObject[] spines, BackgroundWorker? worker = null)
         {
-            if (Validate() is string err) 
-                throw new ArgumentException(err);
+            if (Validate() is string err) throw new ArgumentException(err);
 
             var spinesToRender = spines.Where(sp => !RenderSelectedOnly || sp.IsSelected).Reverse().ToArray();
+            if (spinesToRender.Length > 0)
+            {
+                ClearCache();
 
-            if (IsExportSingle) ExportSingle(spinesToRender, worker);
-            else ExportIndividual(spinesToRender, worker);
+                timestamp = DateTime.Now.ToString("yyMMddHHmmss"); // 刷新时间戳
+                if (IsExportSingle) ExportSingle(spinesToRender, worker);
+                else ExportIndividual(spinesToRender, worker);
+
+                ClearCache();
+            }
 
             logger.LogCurrentProcessMemoryUsage();
         }
@@ -220,10 +362,10 @@ namespace SpineViewer.Spine.SpineExporter
         public Size Resolution { get => Exporter.Resolution; }
 
         /// <summary>
-        /// 渲染视窗
+        /// 预览画面视区
         /// </summary>
-        [Category("[0] 导出"), DisplayName("视图"), Description("画面的视图参数，请在预览画面参数面板进行调整")]
-        public SFML.Graphics.View View { get => Exporter.View; }
+        [Category("[0] 导出"), DisplayName("预览画面视区"), Description("预览画面的视区参数，请在预览画面参数面板进行调整")]
+        public SFML.Graphics.View View { get => Exporter.PreviewerView; }
 
         /// <summary>
         /// 是否仅渲染选中
@@ -238,5 +380,31 @@ namespace SpineViewer.Spine.SpineExporter
         [TypeConverter(typeof(SFMLColorConverter))]
         [Category("[0] 导出"), DisplayName("背景颜色"), Description("要使用的背景色, 格式为 #RRGGBBAA")]
         public SFML.Graphics.Color BackgroundColor { get => Exporter.BackgroundColor; set => Exporter.BackgroundColor = value; }
+
+        /// <summary>
+        /// 四周边缘距离
+        /// </summary>
+        [TypeConverter(typeof(PaddingConverter))]
+        [Category("[0] 导出"), DisplayName("四周边缘距离"), Description("画布外部的边缘距离 (Margin), 最终导出的分辨率需要加上这个边距")]
+        public Padding Margin { get => Exporter.Margin; set => Exporter.Margin = value; }
+
+        /// <summary>
+        /// 四周填充距离
+        /// </summary>
+        [TypeConverter(typeof(PaddingConverter))]
+        [Category("[0] 导出"), DisplayName("四周填充距离"), Description("画布内部的填充距离 (Padding), 导出的分辨率大小不会发生变化, 但是会留有四周空间")]
+        public Padding Padding { get => Exporter.Padding; set => Exporter.Padding = value; }
+
+        /// <summary>
+        /// 允许内容溢出到边缘和填充区域
+        /// </summary>
+        [Category("[0] 导出"), DisplayName("允许内容溢出"), Description("使用预览画面分辨率的情况下, 允许内容溢出到边缘和填充区域")]
+        public bool AllowContentOverflow { get => Exporter.AllowContentOverflow; set => Exporter.AllowContentOverflow = value; }
+
+        /// <summary>
+        /// 自动分辨率
+        /// </summary>
+        [Category("[0] 导出"), DisplayName("自动分辨率"), Description("根据导出内容自动设置分辨率, 四周填充距离和内容溢出参数将会被忽略")]
+        public bool AutoResolution { get => Exporter.AutoResolution; set => Exporter.AutoResolution = value; }
     }
 }

SpineViewer/Spine/SpineObject.cs

@@ -6,6 +6,9 @@ using NLog;
 using System.Xml.Linq;
 using SpineViewer.Extensions;
 using SpineViewer.Utils;
+using System.Collections.Immutable;
+using System.Collections.Frozen;
+using System.Linq;
 
 namespace SpineViewer.Spine
 {
@@ -14,20 +17,20 @@ namespace SpineViewer.Spine
     /// </summary>
     public abstract class SpineObject : ImplementationResolver<SpineObject, SpineImplementationAttribute, SpineVersion>, SFML.Graphics.Drawable, IDisposable
     {
+        /// <summary>
+        /// 空附件标记
+        /// </summary>
+        protected const string EMPTY_ATTACHMENT = "<Empty>";
+
         /// <summary>
         /// 空动画标记
         /// </summary>
         protected const string EMPTY_ANIMATION = "<Empty>";
 
         /// <summary>
-        /// 预览图宽
+        /// 预览图像素大小
         /// </summary>
-        protected const uint PREVIEW_WIDTH = 256;
-
-        /// <summary>
-        /// 预览图高
-        /// </summary>
-        protected const uint PREVIEW_HEIGHT = 256;
+        protected static readonly Size PreviewResolution = new(256, 256);
 
         /// <summary>
         /// 创建特定版本的 Spine
@@ -52,7 +55,6 @@ namespace SpineViewer.Spine
         /// 日志器
         /// </summary>
         protected readonly Logger logger = LogManager.GetCurrentClassLogger();
-        private bool skinLoggerWarned = false;
 
         /// <summary>
         /// 构造函数
@@ -71,9 +73,6 @@ namespace SpineViewer.Spine
         /// </summary>
         private SpineObject PostInit()
         {
-            SkinNames = skinNames.AsReadOnly();
-            AnimationNames = animationNames.AsReadOnly();
-
             // 必须 Update 一次否则包围盒还没有值
             update(0);
 
@@ -82,21 +81,23 @@ namespace SpineViewer.Spine
             // 虽然两边不会同时调用 Draw, 但是死锁似乎和 Draw 函数有关
             // 除此之外, 似乎还和 tex 的 Dispose 有关
             // 如果不对 tex 进行 Dispose, 那么不管是否 Draw 都正常不会死锁
-            var tex = new SFML.Graphics.RenderTexture(PREVIEW_WIDTH, PREVIEW_HEIGHT);
-            using var view = bounds.GetView(PREVIEW_WIDTH, PREVIEW_HEIGHT);
+            var tex = new SFML.Graphics.RenderTexture((uint)PreviewResolution.Width, (uint)PreviewResolution.Height);
+            var bounds = getCurrentBounds().GetCanvasBounds(PreviewResolution);
+            using var view = new SFML.Graphics.View(
+                new(bounds.X + bounds.Width / 2, bounds.Y + bounds.Height / 2),
+                new(bounds.Width, -bounds.Height)
+            );
             tex.SetView(view);
             tex.Clear(SFML.Graphics.Color.Transparent);
             tex.Draw(this);
             tex.Display();
             Preview = tex.Texture.CopyToBitmap();
 
-            // 默认初始化10个空位
-            for (int i = 0; i < 10; i++)
-            {
-                setAnimation(i, AnimationNames.First());
-                loadedSkins.Add(SkinNames.First());
-            }
-            reloadSkins();
+            // 初始化皮肤加载情况
+            foreach (var n in SkinNames) skinLoadStatus[n] = false;
+
+            // 默认初始化10个动画空位
+            for (int i = 0; i < 10; i++) setAnimation(i, AnimationNames.First());
 
             return this;
         }
@@ -163,12 +164,6 @@ namespace SpineViewer.Spine
         public bool UsePma { get { lock (_lock) return usePma; } set { lock (_lock) usePma = value; } }
         protected bool usePma = false;
 
-        /// <summary>
-        /// 骨骼包围盒
-        /// </summary>
-        public RectangleF Bounds { get { lock (_lock) return bounds; } }
-        protected abstract RectangleF bounds { get; }
-
         /// <summary>
         /// 缩放比例
         /// </summary>
@@ -209,18 +204,6 @@ namespace SpineViewer.Spine
         }
         protected abstract bool flipY { get; set; }
 
-        /// <summary>
-        /// 包含的所有皮肤名称
-        /// </summary>
-        public ReadOnlyCollection<string> SkinNames { get; private set; }
-        protected readonly List<string> skinNames = [];
-
-        /// <summary>
-        /// 包含的所有动画名称
-        /// </summary>
-        public ReadOnlyCollection<string> AnimationNames { get; private set; }
-        protected readonly List<string> animationNames = [EMPTY_ANIMATION];
-
         /// <summary>
         /// 是否被选中
         /// </summary>
@@ -321,6 +304,16 @@ namespace SpineViewer.Spine
         }
         protected bool debugPaths = false;
 
+        /// <summary>
+        /// 显示点附件
+        /// </summary>
+        public bool DebugPoints
+        {
+            get { lock (_lock) return debugPoints; }
+            set { lock (_lock) { debugPoints = value; update(0); } }
+        }
+        protected bool debugPoints = false;
+
         /// <summary>
         /// 显示剪裁附件网格线
         /// </summary>
@@ -332,76 +325,67 @@ namespace SpineViewer.Spine
         protected bool debugClippings = false;
 
         /// <summary>
-        /// 获取已加载的皮肤列表快照, 允许出现重复值
+        /// 所有插槽下可用的附件名
         /// </summary>
-        public string[] GetLoadedSkins() { lock (_lock) return loadedSkins.ToArray(); }
-        protected readonly List<string> loadedSkins = [];
+        public FrozenDictionary<string, ImmutableArray<string>> SlotAttachmentNames { get; protected set; }
 
         /// <summary>
-        /// 加载指定皮肤, 添加至列表末尾, 如果不存在则忽略, 允许加载重复的值
+        /// 包含的所有皮肤名称 (不含 default 默认皮肤)
         /// </summary>
-        public void LoadSkin(string name)
-        {
-            if (!skinNames.Contains(name)) return;
-            lock (_lock)
-            {
-                loadedSkins.Add(name);
-                reloadSkins();
-
-                if (!skinLoggerWarned && Version < SpineVersion.V38 && loadedSkins.Count > 1)
-                {
-                    logger.Warn($"Multiplt skins not supported in SpineVersion {Version.GetName()}");
-                    skinLoggerWarned = true;
-                }
-            }
-        }
+        public ImmutableArray<string> SkinNames { get; protected set; }
 
         /// <summary>
-        /// 卸载列表指定位置皮肤, 如果超出范围则忽略
+        /// 包含的所有动画名称
         /// </summary>
-        public void UnloadSkin(int idx)
+        public ImmutableArray<string> AnimationNames { get; protected set; }
+
+        /// <summary>
+        /// 获取某个插槽当前加载的附件
+        /// </summary>
+        public string GetSlotAttachment(string slot) { lock (_lock) return getSlotAttachment(slot); }
+        protected abstract string getSlotAttachment(string slot);
+
+        /// <summary>
+        /// 设置某个插槽当前加载的附件
+        /// </summary>
+        public void SetSlotAttachment(string slot, string name) { lock (_lock) setSlotAttachment(slot, name); }
+        protected abstract void setSlotAttachment(string slot, string name);
+
+        /// <summary>
+        /// 皮肤的加载情况记录表
+        /// </summary>
+        protected readonly Dictionary<string, bool> skinLoadStatus = [];
+
+        /// <summary>
+        /// 查询皮肤加载状态, 皮肤不存在时返回 false
+        /// </summary>
+        public bool GetSkinStatus(string name) { lock (_lock) return skinLoadStatus.TryGetValue(name, out var status) && status; }
+
+        /// <summary>
+        /// 设置皮肤加载状态, 忽略不存在的皮肤
+        /// </summary>
+        public void SetSkinStatus(string name, bool status)
         {
+            if (!skinLoadStatus.ContainsKey(name)) return;
             lock (_lock)
             {
-                if (idx < 0 || idx >= loadedSkins.Count) return;
-                loadedSkins.RemoveAt(idx);
+                skinLoadStatus[name] = status;
                 reloadSkins();
             }
         }
 
         /// <summary>
-        /// 替换皮肤列表指定位置皮肤, 超出范围或者皮肤不存在则忽略
-        /// </summary>
-        public void ReplaceSkin(int idx, string name)
-        {
-            lock (_lock)
-            {
-                if (idx < 0 || idx >= loadedSkins.Count || !skinNames.Contains(name)) return;
-                loadedSkins[idx] = name;
-                reloadSkins();
-            }
-        }
-
-        /// <summary>
-        /// 重新加载现有皮肤列表, 用于刷新等操作
+        /// 刷新已加载皮肤
         /// </summary>
         public void ReloadSkins() { lock (_lock) reloadSkins(); }
-        private void reloadSkins()
+        protected void reloadSkins()
         {
-            clearSkin();
-            foreach (var s in loadedSkins.Distinct()) addSkin(s);
+            clearSkins();
+            foreach (var (name, _) in skinLoadStatus.Where(e => e.Value)) addSkin(name);
             update(0);
         }
-
-        /// <summary>
-        /// 加载皮肤, 如果不存在则忽略
-        /// </summary>
         protected abstract void addSkin(string name);
-
-        /// <summary>
-        /// 清空加载的所有皮肤
-        /// </summary>
-        protected abstract void clearSkin();
+        protected abstract void clearSkins();
 
         /// <summary>
         /// 获取所有非 null 的轨道索引快照
@@ -437,6 +421,18 @@ namespace SpineViewer.Spine
         /// </summary>
         public void ResetAnimationsTime() { lock (_lock) { foreach (var i in getTrackIndices()) setAnimation(i, getAnimation(i)); update(0); } }
 
+        /// <summary>
+        /// 获取当前状态包围盒
+        /// </summary>
+        public RectangleF GetCurrentBounds() { lock (_lock) return getCurrentBounds(); }
+        protected abstract RectangleF getCurrentBounds();
+
+        /// <summary>
+        /// 获取当前参数下包围盒最大范围, 不是精确值
+        /// </summary>
+        public RectangleF GetBounds() { lock (_lock) return getBounds(); }
+        protected abstract RectangleF getBounds();
+
         /// <summary>
         /// 更新内部状态
         /// </summary>
@@ -568,4 +564,4 @@ namespace SpineViewer.Spine
 
         #endregion
     }
-}
+}

SpineViewer/Spine/SpineView/SpineAnimationProperty.cs

@@ -85,9 +85,9 @@ namespace SpineViewer.Spine.SpineView
             var props = new PropertyDescriptorCollection(TypeDescriptor.GetProperties(this, attributes, true).Cast<PropertyDescriptor>().ToArray());
             foreach (var i in Spine.GetTrackIndices())
             {
-                if (!pdCache.ContainsKey(i))
-                    pdCache[i] = new TrackWrapperPropertyDescriptor(i, [new DisplayNameAttribute($"轨道 {i}")]);
-                props.Add(pdCache[i]);
+                if (!pdCache.TryGetValue(i, out var pd))
+                    pdCache[i] = pd = new TrackWrapperPropertyDescriptor(i, [new DisplayNameAttribute($"轨道 {i}")]);
+                props.Add(pd);
             }
             return props;
         }
@@ -186,17 +186,12 @@ namespace SpineViewer.Spine.SpineView
             {
                 return new StandardValuesCollection(tracks.Spine.AnimationNames);
             }
-            else if (context?.Instance is object[] instances && instances.All(x => x is SpineAnimationProperty))
+            else if (context?.Instance is object[] instances)
             {
-                // XXX: 这里不知道为啥总是会得到 object[] 类型而不是具体的类型
-                var animTracks = instances.Cast<SpineAnimationProperty>().ToArray();
-                if (animTracks.Length > 0)
-                {
-                    IEnumerable<string> common = animTracks[0].Spine.AnimationNames;
-                    foreach (var t in animTracks.Skip(1))
-                        common = common.Union(t.Spine.AnimationNames);
-                    return new StandardValuesCollection(common.ToArray());
-                }
+                IEnumerable<string> common = [];
+                foreach (SpineAnimationProperty prop in instances.Where(inst => inst is SpineAnimationProperty))
+                    common = common.Union(prop.Spine.AnimationNames);
+                return new StandardValuesCollection(common.ToArray());
             }
             return base.GetStandardValues(context);
         }

SpineViewer/Spine/SpineView/SpineDebugProperty.cs

@@ -64,6 +64,12 @@ namespace SpineViewer.Spine.SpineView
         //[DisplayName("Paths")]
         //public bool DebugPaths { get => Spine.DebugPaths; set => Spine.DebugPaths = value; }
 
+        ///// <summary>
+        ///// 显示点附件
+        ///// </summary>
+        //[DisplayName("Points")]
+        //public bool DebugPoints { get => Spine.DebugPoints; set => Spine.DebugPoints = value; }
+
         /// <summary>
         /// 显示剪裁附件网格线
         /// </summary>

SpineViewer/Spine/SpineView/SpineObjectProperty.cs

@@ -27,6 +27,10 @@ namespace SpineViewer.Spine.SpineView
         [DisplayName("皮肤")]
         public SpineSkinProperty Skin { get; } = new(spine);
 
+        [TypeConverter(typeof(ExpandableObjectConverter))]
+        [DisplayName("插槽")]
+        public SpineSlotProperty Slot { get; } = new(spine);
+
         [TypeConverter(typeof(ExpandableObjectConverter))]
         [DisplayName("动画")]
         public SpineAnimationProperty Animation { get; } = new(spine);

SpineViewer/Spine/SpineView/SpineSkinProperty.cs

@@ -10,7 +10,7 @@ using System.Threading.Tasks;
 namespace SpineViewer.Spine.SpineView
 {
     /// <summary>
-    /// 皮肤列表动态类型包装类, 用于提供对 Spine 皮肤列表的管理能力
+    /// 皮肤动态类型包装类, 用于提供对 Spine 皮肤的管理能力
     /// </summary>
     /// <param name="spine">关联的 Spine 对象</param>
     public class SpineSkinProperty(SpineObject spine) : ICustomTypeDescriptor
@@ -18,34 +18,10 @@ namespace SpineViewer.Spine.SpineView
         [Browsable(false)]
         public SpineObject Spine { get; } = spine;
 
-        /// <summary>
-        /// <see cref="SpineSkinProperty"/> 属性缓存
-        /// </summary>
-        private readonly Dictionary<int, SkinNameProperty> skinNameProperties = [];
-
-        /// <summary>
-        /// <c>this.Skin{i}</c>
-        /// </summary>
-        public SkinNameProperty GetSkinName(int i)
-        {
-            if (!skinNameProperties.ContainsKey(i))
-                skinNameProperties[i] = new SkinNameProperty(Spine, i);
-            return skinNameProperties[i];
-        }
-
-        /// <summary>
-        /// <c>this.Skin{i} = <paramref name="value"/></c>
-        /// </summary>
-        public void SetSkinName(int i, string value)
-        {
-            Spine.ReplaceSkin(i, value);
-            TypeDescriptor.Refresh(this);
-        }
-
         /// <summary>  
         /// 在属性面板悬停可以显示已加载的皮肤列表  
         /// </summary>  
-        public override string ToString() => $"[{string.Join(", ", Spine.GetLoadedSkins())}]";
+        public override string ToString() => $"[{string.Join(", ", Spine.SkinNames.Where(Spine.GetSkinStatus))}]";
 
         public override bool Equals(object? obj)
         {
@@ -59,7 +35,7 @@ namespace SpineViewer.Spine.SpineView
 
         // XXX: 必须实现 ICustomTypeDescriptor 接口, 不能继承 CustomTypeDescriptor, 似乎继承下来的东西会有问题, 导致某些调用不正确
 
-        private static readonly Dictionary<int, SkinNamePropertyDescriptor> pdCache = [];
+        private static readonly Dictionary<string, SkinPropertyDescriptor> pdCache = [];
 
         public AttributeCollection GetAttributes() => TypeDescriptor.GetAttributes(this, true);
         public string? GetClassName() => TypeDescriptor.GetClassName(this, true);
@@ -75,112 +51,44 @@ namespace SpineViewer.Spine.SpineView
         public PropertyDescriptorCollection GetProperties(Attribute[]? attributes)
         {
             var props = new PropertyDescriptorCollection(TypeDescriptor.GetProperties(this, attributes, true).Cast<PropertyDescriptor>().ToArray());
-            for (var i = 0; i < Spine.GetLoadedSkins().Length; i++)
+            foreach (var name in Spine.SkinNames)
             {
-                if (!pdCache.ContainsKey(i))
-                    pdCache[i] = new SkinNamePropertyDescriptor(i, [new DisplayNameAttribute($"皮肤 {i}")]);
-                props.Add(pdCache[i]);
+                if (!pdCache.TryGetValue(name, out var pd))
+                    pdCache[name] = pd = new SkinPropertyDescriptor(name, [new DisplayNameAttribute(name)]);
+                props.Add(pd);
             }
             return props;
         }
 
         /// <summary>
-        /// 皮肤属性描述符, 实现对属性的读取和赋值
+        /// 皮肤属性描述符, 实现对皮肤的加载和卸载, <c><see cref="SpineSkinProperty"/>.{name}</c>
         /// </summary>
-        private class SkinNamePropertyDescriptor(int i, Attribute[]? attributes) : PropertyDescriptor($"Skin{i}", attributes)
+        private class SkinPropertyDescriptor(string name, Attribute[]? attributes) : PropertyDescriptor(name, attributes)
         {
-            private readonly int idx = i;
-
             public override Type ComponentType => typeof(SpineSkinProperty);
             public override bool IsReadOnly => false;
-            public override Type PropertyType => typeof(SkinNameProperty);
+            public override Type PropertyType => typeof(bool);
             public override bool CanResetValue(object component) => false;
             public override void ResetValue(object component) { }
             public override bool ShouldSerializeValue(object component) => false;
 
-            /// <summary>
-            /// 得到一个 <see cref="SpineSkinProperty"/>, 允许用户查看或者修改具体的属性值, 这个地方决定了在面板上看到的是一个对象及其属性
-            /// </summary>
             public override object? GetValue(object? component)
             {
                 if (component is SpineSkinProperty prop)
-                    return prop.GetSkinName(idx);
+                    return prop.Spine.GetSkinStatus(Name);
                 return null;
             }
 
-            /// <summary>
-            /// 允许通过字符串赋值修改该位置的皮肤
-            /// </summary>
             public override void SetValue(object? component, object? value)
             {
                 if (component is SpineSkinProperty prop)
                 {
-                    if (value is string s)
-                        prop.SetSkinName(idx, s);
+                    if (value is bool s)
+                        prop.Spine.SetSkinStatus(Name, s);
                 }
             }
         }
 
         #endregion
     }
-
-    /// <summary>
-    /// 对 <c><see cref="SpineSkinProperty"/>.Skin{i}</c> 属性的包装类
-    /// </summary>
-    [TypeConverter(typeof(SkinNamePropertyConverter))]
-    public class SkinNameProperty(SpineObject spine, int i)
-    {
-        private readonly SpineObject spine = spine;
-
-        [Browsable(false)]
-        public int Index { get; } = i;
-
-        public override string ToString()
-        {
-            var loadedSkins = spine.GetLoadedSkins();
-            if (Index >= 0 && Index < loadedSkins.Length)
-                return loadedSkins[Index];
-            return "!NULL"; // XXX: 预期应该不会发生
-        }
-
-        public override bool Equals(object? obj)
-        {
-            if (obj is SkinNameProperty) return ToString() == obj.ToString();
-            return base.Equals(obj);
-        }
-
-        public override int GetHashCode() => HashCode.Combine(typeof(SkinNameProperty).FullName.GetHashCode(), ToString().GetHashCode());
-    }
-
-    public class SkinNamePropertyConverter : StringConverter
-    {
-        // NOTE: 可以不用实现 ConvertTo/ConvertFrom, 因为属性实现了与字符串之间的互转
-        // ToString 实现了 ConvertTo
-        // SetValue 实现了从字符串设置属性
-
-        public override bool GetStandardValuesSupported(ITypeDescriptorContext? context) => true;
-
-        public override bool GetStandardValuesExclusive(ITypeDescriptorContext? context) => true;
-
-        public override StandardValuesCollection? GetStandardValues(ITypeDescriptorContext? context)
-        {
-            if (context?.Instance is SpineSkinProperty manager)
-            {
-                return new StandardValuesCollection(manager.Spine.SkinNames);
-            }
-            else if (context?.Instance is object[] instances && instances.All(x => x is SpineSkinProperty))
-            {
-                // XXX: 这里不知道为啥总是会得到 object[] 类型而不是具体的 SpineSkinWrapper[] 类型
-                var managers = instances.Cast<SpineSkinProperty>().ToArray();
-                if (managers.Length > 0)
-                {
-                    IEnumerable<string> common = managers[0].Spine.SkinNames;
-                    foreach (var t in managers.Skip(1))
-                        common = common.Union(t.Spine.SkinNames);
-                    return new StandardValuesCollection(common.ToArray());
-                }
-            }
-            return base.GetStandardValues(context);
-        }
-    }
 }

SpineViewer/Spine/SpineView/SpineSlotProperty.cs

@@ -0,0 +1,170 @@
+using SpineViewer.Spine;
+using SpineViewer.Utils;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SpineViewer.Spine.SpineView
+{
+    /// <summary>
+    /// 用于在 PropertyGrid 上显示插槽附件加载情况包装类
+    /// </summary>
+    public class SpineSlotProperty(SpineObject spine) : ICustomTypeDescriptor
+    {
+        [Browsable(false)]
+        public SpineObject Spine { get; } = spine;
+
+        /// <summary>
+        /// 显示所有插槽集合
+        /// </summary>
+        public override string ToString() => $"[{string.Join(", ", Spine.SlotAttachmentNames.Keys)}]";
+
+        public override bool Equals(object? obj)
+        {
+            if (obj is SpineAnimationProperty prop) return ToString() == prop.ToString();
+            return base.Equals(obj);
+        }
+
+        public override int GetHashCode() => HashCode.Combine(typeof(SpineAnimationProperty).FullName.GetHashCode(), ToString().GetHashCode());
+
+        #region ICustomTypeDescriptor 接口实现
+
+        // XXX: 必须实现 ICustomTypeDescriptor 接口, 不能继承 CustomTypeDescriptor, 似乎继承下来的东西会有问题, 导致某些调用不正确
+
+        /// <summary>
+        /// 属性描述符缓存
+        /// </summary>
+        private static readonly Dictionary<string, SlotPropertyDescriptor> pdCache = [];
+
+        public AttributeCollection GetAttributes() => TypeDescriptor.GetAttributes(this, true);
+        public string? GetClassName() => TypeDescriptor.GetClassName(this, true);
+        public string? GetComponentName() => TypeDescriptor.GetComponentName(this, true);
+        public TypeConverter? GetConverter() => TypeDescriptor.GetConverter(this, true);
+        public EventDescriptor? GetDefaultEvent() => TypeDescriptor.GetDefaultEvent(this, true);
+        public PropertyDescriptor? GetDefaultProperty() => TypeDescriptor.GetDefaultProperty(this, true);
+        public object? GetEditor(Type editorBaseType) => TypeDescriptor.GetEditor(this, editorBaseType, true);
+        public EventDescriptorCollection GetEvents() => TypeDescriptor.GetEvents(this, true);
+        public EventDescriptorCollection GetEvents(Attribute[]? attributes) => TypeDescriptor.GetEvents(this, attributes, true);
+        public object? GetPropertyOwner(PropertyDescriptor? pd) => this;
+        public PropertyDescriptorCollection GetProperties() => GetProperties(null);
+        public PropertyDescriptorCollection GetProperties(Attribute[]? attributes)
+        {
+            var props = new PropertyDescriptorCollection(TypeDescriptor.GetProperties(this, attributes, true).Cast<PropertyDescriptor>().ToArray());
+            foreach (var slotName in Spine.SlotAttachmentNames.Keys)
+            {
+                if (!pdCache.TryGetValue(slotName, out var pd))
+                    pdCache[slotName] = pd = new SlotPropertyDescriptor(slotName, [new DisplayNameAttribute($"{slotName}")]);
+                props.Add(pd);
+            }
+            return props;
+        }
+
+        /// <summary>
+        /// 插槽属性描述符, 实现对属性的读取和赋值
+        /// </summary>
+        internal class SlotPropertyDescriptor(string name, Attribute[]? attributes) : PropertyDescriptor(name, attributes)
+        {
+            public override Type ComponentType => typeof(SpineSlotProperty);
+            public override bool IsReadOnly => false;
+            public override Type PropertyType => typeof(SlotProperty);
+            public override bool CanResetValue(object component) => false;
+            public override void ResetValue(object component) { }
+            public override bool ShouldSerializeValue(object component) => false;
+
+            /// <summary>
+            /// 得到一个轨道包装类, 允许用户查看或者修改具体的属性值, 这个地方决定了在面板上看到的是一个对象及其属性
+            /// </summary>
+            public override object? GetValue(object? component)
+            {
+                if (component is SpineSlotProperty slots)
+                    return slots.Spine.GetSlotAttachment(Name);
+                return null;
+            }
+
+            /// <summary>
+            /// 允许通过字符串赋值修改该轨道的动画, 这里决定了当其他地方的调用 (比如 Converter) 通过 value 来设置属性值的时候应该怎么处理
+            /// </summary>
+            public override void SetValue(object? component, object? value)
+            {
+                if (component is SpineSlotProperty slots)
+                {
+                    if (value is string s)
+                        slots.Spine.SetSlotAttachment(Name, s);
+                }
+            }
+        }
+
+        #endregion
+    }
+
+    /// <summary>
+    /// 对 <c><see cref="SpineSlotProperty"/>.{name}</c> 属性的包装类
+    /// </summary>
+    [TypeConverter(typeof(SlotPropertyConverter))]
+    public class SlotProperty(SpineObject spine, string name)
+    {
+        private readonly SpineObject spine = spine;
+
+        [Browsable(false)]
+        public string Name { get; } = name;
+
+        /// <summary>
+        /// 实现了默认的转为字符串的方式
+        /// </summary>
+        public override string ToString() => spine.GetSlotAttachment(Name);
+
+        /// <summary>
+        /// 影响了属性面板的判断, 当动画名称相同的时候认为两个对象是相同的, 这样属性面板可以在多选的时候正确显示相同取值的内容
+        /// </summary>
+        public override bool Equals(object? obj)
+        {
+            if (obj is SlotProperty) return ToString() == obj.ToString();
+            return base.Equals(obj);
+        }
+
+        /// <summary>
+        /// 哈希码需要和 Equals 行为类似
+        /// </summary>
+        public override int GetHashCode() => HashCode.Combine(typeof(SlotProperty).FullName.GetHashCode(), ToString().GetHashCode());
+    }
+
+    /// <summary>
+    /// 轨道索引包装类转换器, 实现字符串和包装类的互相转换, 并且提供标准值列表对属性进行设置, 同时还提供在面板上显示包装类属性的能力
+    /// </summary>
+    public class SlotPropertyConverter : StringConverter
+    {
+        // NOTE: 可以不用实现 ConvertTo/ConvertFrom, 因为属性实现了与字符串之间的互转
+        // ToString 实现了 ConvertTo
+        // SetValue 实现了从字符串设置属性
+
+        public override bool GetStandardValuesSupported(ITypeDescriptorContext? context) => true;
+
+        public override bool GetStandardValuesExclusive(ITypeDescriptorContext? context) => true;
+
+        public override StandardValuesCollection? GetStandardValues(ITypeDescriptorContext? context)
+        {
+            if (context?.PropertyDescriptor is PropertyDescriptor pd)
+            {
+                if (context?.Instance is SpineSlotProperty slots)
+                {
+                    if (slots.Spine.SlotAttachmentNames.TryGetValue(pd.Name, out var names))
+                        return new StandardValuesCollection(names);
+                }
+                else if (context?.Instance is object[] instances)
+                {
+                    IEnumerable<string> common = [];
+                    foreach (SpineSlotProperty prop in instances.Where(inst => inst is SpineSlotProperty))
+                    {
+                        if (prop.Spine.SlotAttachmentNames.TryGetValue(pd.Name, out var names))
+                            common = common.Union(names);
+                    }
+                    return new StandardValuesCollection(common.ToArray());
+                }
+            }
+            return base.GetStandardValues(context);
+        }
+    }
+}

SpineViewer/SpineViewer.csproj

@@ -7,7 +7,7 @@
         <TargetFramework>net8.0-windows</TargetFramework>
         <BaseOutputPath>$(SolutionDir)out</BaseOutputPath>
         <IncludeSourceRevisionInInformationalVersion>false</IncludeSourceRevisionInInformationalVersion>
-        <Version>0.12.3</Version>
+        <Version>0.12.5</Version>
         <OutputType>WinExe</OutputType>
         <UseWindowsForms>true</UseWindowsForms>
         <ApplicationIcon>appicon.ico</ApplicationIcon>

SpineViewer/Utils/TypeConverter.cs

@@ -111,6 +111,8 @@ namespace SpineViewer.Utils
             public override void SetValue(object? component, object? value) => component?.GetType().GetField(Name)?.SetValue(component, value);
         }
 
+        private static PropertyDescriptorCollection pdCollection = null;
+
         public override bool CanConvertFrom(ITypeDescriptorContext? context, Type sourceType)
         {
             return sourceType == typeof(string) || base.CanConvertFrom(context, sourceType);
@@ -156,18 +158,16 @@ namespace SpineViewer.Utils
 
         public override PropertyDescriptorCollection GetProperties(ITypeDescriptorContext? context, object value, Attribute[]? attributes)
         {
-            // 自定义属性集合
-            var properties = new List<PropertyDescriptor>
-            {
-                // 定义 R, G, B, A 四个字段的描述器
-                new SFMLColorPropertyDescriptor(typeof(SFML.Graphics.Color), "R", typeof(byte)),
-                new SFMLColorPropertyDescriptor(typeof(SFML.Graphics.Color), "G", typeof(byte)),
-                new SFMLColorPropertyDescriptor(typeof(SFML.Graphics.Color), "B", typeof(byte)),
-                new SFMLColorPropertyDescriptor(typeof(SFML.Graphics.Color), "A", typeof(byte))
-            };
-
-            // 返回自定义属性集合
-            return new PropertyDescriptorCollection(properties.ToArray());
+            pdCollection ??= new(
+                [
+                    new SFMLColorPropertyDescriptor(typeof(SFML.Graphics.Color), "R", typeof(byte)),
+                    new SFMLColorPropertyDescriptor(typeof(SFML.Graphics.Color), "G", typeof(byte)),
+                    new SFMLColorPropertyDescriptor(typeof(SFML.Graphics.Color), "B", typeof(byte)),
+                    new SFMLColorPropertyDescriptor(typeof(SFML.Graphics.Color), "A", typeof(byte))
+                ],
+                true
+            );
+            return pdCollection;
         }
     }
 }