增加多轨道动画编辑

SpineViewer/Dialogs/AnimationTracksEditorDialog.Designer.cs

@@ -0,0 +1,139 @@
+namespace SpineViewer.Dialogs
+{
+    partial class AnimationTracksEditorDialog
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            panel = new Panel();
+            tableLayoutPanel1 = new TableLayoutPanel();
+            flowLayoutPanel1 = new FlowLayoutPanel();
+            button_Add = new Button();
+            button_Delete = new Button();
+            propertyGrid_AnimationTracks = new PropertyGrid();
+            panel.SuspendLayout();
+            tableLayoutPanel1.SuspendLayout();
+            flowLayoutPanel1.SuspendLayout();
+            SuspendLayout();
+            // 
+            // panel
+            // 
+            panel.Controls.Add(tableLayoutPanel1);
+            panel.Dock = DockStyle.Fill;
+            panel.Location = new Point(0, 0);
+            panel.Name = "panel";
+            panel.Padding = new Padding(50, 15, 50, 10);
+            panel.Size = new Size(666, 483);
+            panel.TabIndex = 0;
+            // 
+            // tableLayoutPanel1
+            // 
+            tableLayoutPanel1.ColumnCount = 1;
+            tableLayoutPanel1.ColumnStyles.Add(new ColumnStyle(SizeType.Percent, 100F));
+            tableLayoutPanel1.Controls.Add(flowLayoutPanel1, 0, 1);
+            tableLayoutPanel1.Controls.Add(propertyGrid_AnimationTracks, 0, 0);
+            tableLayoutPanel1.Dock = DockStyle.Fill;
+            tableLayoutPanel1.Location = new Point(50, 15);
+            tableLayoutPanel1.Name = "tableLayoutPanel1";
+            tableLayoutPanel1.RowCount = 2;
+            tableLayoutPanel1.RowStyles.Add(new RowStyle(SizeType.Percent, 100F));
+            tableLayoutPanel1.RowStyles.Add(new RowStyle());
+            tableLayoutPanel1.Size = new Size(566, 458);
+            tableLayoutPanel1.TabIndex = 0;
+            // 
+            // flowLayoutPanel1
+            // 
+            flowLayoutPanel1.AutoSize = true;
+            flowLayoutPanel1.Controls.Add(button_Add);
+            flowLayoutPanel1.Controls.Add(button_Delete);
+            flowLayoutPanel1.Dock = DockStyle.Fill;
+            flowLayoutPanel1.Location = new Point(3, 415);
+            flowLayoutPanel1.Name = "flowLayoutPanel1";
+            flowLayoutPanel1.Size = new Size(560, 40);
+            flowLayoutPanel1.TabIndex = 2;
+            // 
+            // button_Add
+            // 
+            button_Add.Location = new Point(3, 3);
+            button_Add.Name = "button_Add";
+            button_Add.Size = new Size(112, 34);
+            button_Add.TabIndex = 0;
+            button_Add.Text = "添加";
+            button_Add.UseVisualStyleBackColor = true;
+            button_Add.Click += button_Add_Click;
+            // 
+            // button_Delete
+            // 
+            button_Delete.Location = new Point(121, 3);
+            button_Delete.Name = "button_Delete";
+            button_Delete.Size = new Size(112, 34);
+            button_Delete.TabIndex = 1;
+            button_Delete.Text = "删除";
+            button_Delete.UseVisualStyleBackColor = true;
+            button_Delete.Click += button_Delete_Click;
+            // 
+            // propertyGrid_AnimationTracks
+            // 
+            propertyGrid_AnimationTracks.Dock = DockStyle.Fill;
+            propertyGrid_AnimationTracks.HelpVisible = false;
+            propertyGrid_AnimationTracks.Location = new Point(3, 3);
+            propertyGrid_AnimationTracks.Name = "propertyGrid_AnimationTracks";
+            propertyGrid_AnimationTracks.PropertySort = PropertySort.NoSort;
+            propertyGrid_AnimationTracks.Size = new Size(560, 406);
+            propertyGrid_AnimationTracks.TabIndex = 1;
+            propertyGrid_AnimationTracks.ToolbarVisible = false;
+            // 
+            // AnimationTracksEditorDialog
+            // 
+            AutoScaleDimensions = new SizeF(11F, 24F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(666, 483);
+            Controls.Add(panel);
+            FormBorderStyle = FormBorderStyle.FixedDialog;
+            MaximizeBox = false;
+            MinimizeBox = false;
+            Name = "AnimationTracksEditorDialog";
+            ShowIcon = false;
+            ShowInTaskbar = false;
+            StartPosition = FormStartPosition.CenterScreen;
+            Text = "多轨道动画实时编辑器";
+            panel.ResumeLayout(false);
+            tableLayoutPanel1.ResumeLayout(false);
+            tableLayoutPanel1.PerformLayout();
+            flowLayoutPanel1.ResumeLayout(false);
+            ResumeLayout(false);
+        }
+
+        #endregion
+
+        private Panel panel;
+        private TableLayoutPanel tableLayoutPanel1;
+        private FlowLayoutPanel flowLayoutPanel1;
+        private Button button_Add;
+        private Button button_Delete;
+        private PropertyGrid propertyGrid_AnimationTracks;
+    }
+}

SpineViewer/Dialogs/AnimationTracksEditorDialog.cs

@@ -0,0 +1,43 @@
+using SpineViewer.Spine;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace SpineViewer.Dialogs
+{
+    public partial class AnimationTracksEditorDialog : Form
+    {
+        private readonly Spine.Spine spine;
+        public AnimationTracksEditorDialog(Spine.Spine spine)
+        {
+            InitializeComponent();
+            this.spine = spine;
+            propertyGrid_AnimationTracks.SelectedObject = spine.AnimationTracks;
+        }
+
+        private void button_Add_Click(object sender, EventArgs e)
+        {
+            spine.SetAnimation(spine.GetTrackIndices().Max() + 1, spine.AnimationNames[0]);
+            propertyGrid_AnimationTracks.Refresh();
+        }
+
+        private void button_Delete_Click(object sender, EventArgs e)
+        {
+            if (propertyGrid_AnimationTracks.SelectedGridItem?.Value is TrackWrapper tr)
+            {
+                if (tr.Index == 0)
+                    MessageBox.Info("必须保留轨道 0");
+                else
+                    spine.ClearTrack(tr.Index);
+            }
+            propertyGrid_AnimationTracks.Refresh();
+            propertyGrid_AnimationTracks.SelectedGridItem = propertyGrid_AnimationTracks.SelectedGridItem.Parent.GridItems.Cast<GridItem>().Last();
+        }
+    }
+}

SpineViewer/Dialogs/AnimationTracksEditorDialog.resx

@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!--
+    Microsoft ResX Schema
+
+    Version 2.0
+
+    The primary goals of this format is to allow a simple XML format
+    that is mostly human readable. The generation and parsing of the
+    various data types are done through the TypeConverter classes
+    associated with the data types.
+
+    Example:
+
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+
+    There are any number of "resheader" rows that contain simple
+    name/value pairs.
+
+    Each data row contains a name, and value. The row also contains a
+    type or mimetype. Type corresponds to a .NET class that support
+    text/value conversion through the TypeConverter architecture.
+    Classes that don't support this are serialized and stored with the
+    mimetype set.
+
+    The mimetype is used for serialized objects, and tells the
+    ResXResourceReader how to depersist the object. This is currently not
+    extensible. For a given mimetype the value must be set accordingly:
+
+    Note - application/x-microsoft.net.object.binary.base64 is the format
+    that the ResXResourceWriter will generate, however the reader can
+    read any of the formats listed below.
+
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

SpineViewer/Spine/AnimationTracks.cs

@@ -0,0 +1,124 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SpineViewer.Spine
+{
+    /// <summary>
+    /// 对轨道索引的包装类, 能够在面板上显示例如时长的属性, 但是处理该属性时按字符串去处理, 例如 ToString 和判断对象相等都是用动画名称实现逻辑
+    /// </summary>
+    /// <param name="spine"></param>
+    /// <param name="i"></param>
+    [TypeConverter(typeof(TrackWrapperConverter))]
+    public class TrackWrapper(Spine spine, int i)
+    {
+        private readonly Spine spine = spine;
+
+        [Browsable(false)]
+        public int Index { get; } = i;
+
+        [DisplayName("时长")]
+        public float Duration => spine.GetAnimationDuration(spine.GetAnimation(Index));
+
+        /// <summary>
+        /// 实现了默认的转为字符串的方式
+        /// </summary>
+        public override string ToString() => spine.GetAnimation(Index);
+
+        /// <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 TrackWrapper tr) 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() => ToString().GetHashCode();
+    }
+
+    /// <summary>
+    /// 轨道属性描述符, 实现对属性的读取和赋值
+    /// </summary>
+    /// <param name="spine">关联的 Spine 对象</param>
+    /// <param name="i">轨道索引</param>
+    public class TrackWrapperPropertyDescriptor(Spine spine, int i) : PropertyDescriptor($"Track{i}", [new DisplayNameAttribute($"轨道 {i}")])
+    {
+        private readonly Spine spine = spine;
+        private readonly int idx = i;
+
+        public override Type ComponentType => typeof(AnimationTracksType);
+        public override bool IsReadOnly => false;
+        public override Type PropertyType => typeof(TrackWrapper);
+        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) => new TrackWrapper(spine, idx);
+
+        /// <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 (value is string s) spine.SetAnimation(idx, s);
+        }
+    }
+
+    /// <summary>
+    /// AnimationTracks 动态类型包装类, 用于提供对 Spine 对象多轨道动画的访问能力, 不同轨道将动态生成属性
+    /// </summary>
+    /// <param name="spine">关联的 Spine 对象</param>
+    public class AnimationTracksType(Spine spine) : ICustomTypeDescriptor
+    {
+        private readonly Dictionary<int, TrackWrapperPropertyDescriptor> pdCache = [];
+        public Spine Spine { get; } = spine;
+
+        // 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
+
+        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 List<TrackWrapperPropertyDescriptor>();
+            foreach (var i in Spine.GetTrackIndices())
+            {
+                if (!pdCache.ContainsKey(i))
+                    pdCache[i] = new TrackWrapperPropertyDescriptor(Spine, i);
+                props.Add(pdCache[i]);
+            }
+            return new PropertyDescriptorCollection(props.ToArray());
+        }
+
+        /// <summary>
+        /// 在属性面板悬停可以按轨道顺序显示动画名称
+        /// </summary>
+        public override string ToString() => $"[{string.Join(", ", Spine.GetTrackIndices().Select(Spine.GetAnimation))}]";
+
+        public override bool Equals(object? obj)
+        {
+            if (obj is AnimationTracksType tracks) return ToString() == tracks.ToString();
+            return base.Equals(obj);
+        }
+
+        public override int GetHashCode() => ToString().GetHashCode();
+    }
+}

SpineViewer/Spine/Implementations/Spine/Spine21.cs

@@ -171,7 +171,7 @@ namespace SpineViewer.Spine.Implementations.Spine
             }
         }
 
-        protected override int[] trackIndices => animationState.Tracks.Select((_, i) => i).Where(i => animationState.Tracks[i] is not null).ToArray();
+        protected override int[] getTrackIndices() => animationState.Tracks.Select((_, i) => i).Where(i => animationState.Tracks[i] is not null).ToArray();
 
         protected override string getAnimation(int track) => animationState.GetCurrent(track)?.Animation.Name ?? EMPTY_ANIMATION;
 

SpineViewer/Spine/Implementations/Spine/Spine36.cs

@@ -170,7 +170,7 @@ namespace SpineViewer.Spine.Implementations.Spine
             }
         }
 
-        protected override int[] trackIndices => animationState.Tracks.Select((_, i) => i).Where(i => animationState.Tracks.Items[i] is not null).ToArray();
+        protected override int[] getTrackIndices() => animationState.Tracks.Select((_, i) => i).Where(i => animationState.Tracks.Items[i] is not null).ToArray();
 
         protected override string getAnimation(int track) => animationState.GetCurrent(track)?.Animation.Name ?? EMPTY_ANIMATION;
 

SpineViewer/Spine/Implementations/Spine/Spine37.cs

@@ -140,7 +140,7 @@ namespace SpineViewer.Spine.Implementations.Spine
             }
         }
 
-        protected override int[] trackIndices => animationState.Tracks.Select((_, i) => i).Where(i => animationState.Tracks.Items[i] is not null).ToArray();
+        protected override int[] getTrackIndices() => animationState.Tracks.Select((_, i) => i).Where(i => animationState.Tracks.Items[i] is not null).ToArray();
 
         protected override string getAnimation(int track) => animationState.GetCurrent(track)?.Animation.Name ?? EMPTY_ANIMATION;
 

SpineViewer/Spine/Implementations/Spine/Spine38.cs

@@ -146,7 +146,7 @@ namespace SpineViewer.Spine.Implementations.Spine
             }
         }
 
-        protected override int[] trackIndices => animationState.Tracks.Select((_, i) => i).Where(i => animationState.Tracks.Items[i] is not null).ToArray();
+        protected override int[] getTrackIndices() => animationState.Tracks.Select((_, i) => i).Where(i => animationState.Tracks.Items[i] is not null).ToArray();
 
         protected override string getAnimation(int track) => animationState.GetCurrent(track)?.Animation.Name ?? EMPTY_ANIMATION;
 

SpineViewer/Spine/Implementations/Spine/Spine40.cs

@@ -142,7 +142,7 @@ namespace SpineViewer.Spine.Implementations.Spine
             }
         }
 
-        protected override int[] trackIndices => animationState.Tracks.Select((_, i) => i).Where(i => animationState.Tracks.Items[i] is not null).ToArray();
+        protected override int[] getTrackIndices() => animationState.Tracks.Select((_, i) => i).Where(i => animationState.Tracks.Items[i] is not null).ToArray();
 
         protected override string getAnimation(int track) => animationState.GetCurrent(track)?.Animation.Name ?? EMPTY_ANIMATION;
 

SpineViewer/Spine/Implementations/Spine/Spine41.cs

@@ -142,7 +142,7 @@ namespace SpineViewer.Spine.Implementations.Spine
             }
         }
 
-        protected override int[] trackIndices => animationState.Tracks.Select((_, i) => i).Where(i => animationState.Tracks.Items[i] is not null).ToArray();
+        protected override int[] getTrackIndices() => animationState.Tracks.Select((_, i) => i).Where(i => animationState.Tracks.Items[i] is not null).ToArray();
 
         protected override string getAnimation(int track) => animationState.GetCurrent(track)?.Animation.Name ?? EMPTY_ANIMATION;
 

SpineViewer/Spine/Implementations/Spine/Spine42.cs

@@ -142,7 +142,7 @@ namespace SpineViewer.Spine.Implementations.Spine
             }
         }
 
-        protected override int[] trackIndices => animationState.Tracks.Select((_, i) => i).Where(i => animationState.Tracks.Items[i] is not null).ToArray();
+        protected override int[] getTrackIndices() => animationState.Tracks.Select((_, i) => i).Where(i => animationState.Tracks.Items[i] is not null).ToArray();
 
         protected override string getAnimation(int track) => animationState.GetCurrent(track)?.Animation.Name ?? EMPTY_ANIMATION;
 

SpineViewer/Spine/Spine.cs

@@ -235,13 +235,6 @@ namespace SpineViewer.Spine
 
         #region 属性 | [3] 动画
 
-        /// <summary>
-        /// 包含的所有皮肤名称
-        /// </summary>
-        [Browsable(false)]
-        public ReadOnlyCollection<string> SkinNames { get; private set; }
-        protected List<string> skinNames = [];
-
         /// <summary>
         /// 使用的皮肤名称, 如果设置的皮肤不存在则忽略
         /// </summary>
@@ -254,13 +247,6 @@ namespace SpineViewer.Spine
         }
         protected abstract string skin { get; set; }
 
-        /// <summary>
-        /// 包含的所有动画名称
-        /// </summary>
-        [Browsable(false)]
-        public ReadOnlyCollection<string> AnimationNames { get; private set; }
-        protected List<string> animationNames = [EMPTY_ANIMATION];
-
         /// <summary>
         /// 默认轨道动画名称, 如果设置的动画不存在则忽略
         /// </summary>
@@ -276,34 +262,58 @@ namespace SpineViewer.Spine
         /// 默认轨道动画时长
         /// </summary>
         [Category("[3] 动画"), DisplayName("轨道 0 动画时长")]
-        public float Track0AnimationDuration { get => GetAnimationDuration(Track0Animation); } // TODO: 动画时长变成伪属性在面板显示
+        public float Track0AnimationDuration => GetAnimationDuration(Track0Animation);
 
         /// <summary>
         /// 默认轨道动画时长
         /// </summary>
-        [Editor(typeof(CollectionEditor), typeof(UITypeEditor))]
-        [Category("[3] 动画"), DisplayName("多轨道动画")]
-        public AnimationTrackDict AnimationTracks { get; private set; }
+        [Editor(typeof(AnimationTracksEditor), typeof(UITypeEditor))]
+        [TypeConverter(typeof(ExpandableObjectConverter))]
+        [Category("[3] 动画"), DisplayName("多轨道动画管理")]
+        public AnimationTracksType AnimationTracks { get; private set; }
+
+        /// <summary>
+        /// 包含的所有皮肤名称
+        /// </summary>
+        [Browsable(false)]
+        public ReadOnlyCollection<string> SkinNames { get; private set; }
+        protected List<string> skinNames = [];
+
+        /// <summary>
+        /// 包含的所有动画名称
+        /// </summary>
+        [Browsable(false)]
+        public ReadOnlyCollection<string> AnimationNames { get; private set; }
+        protected List<string> animationNames = [EMPTY_ANIMATION];
 
         /// <summary>
         /// 获取所有非 null 的轨道索引
         /// </summary>
-        protected abstract int[] trackIndices { get; }
+        public int[] GetTrackIndices() { lock (_lock) return getTrackIndices(); }
+        protected abstract int[] getTrackIndices();
 
         /// <summary>
         /// 获取指定轨道的当前动画, 如果没有, 应当返回空动画名称
         /// </summary>
+        public string GetAnimation(int track) { lock (_lock) return getAnimation(track); }
         protected abstract string getAnimation(int track);
 
         /// <summary>
         /// 设置某个轨道动画
         /// </summary>
+        public void SetAnimation(int track, string name) { lock (_lock) setAnimation(track, name); }
         protected abstract void setAnimation(int track, string name);
 
         /// <summary>
         /// 清除某个轨道, 与设置空动画不同, 是彻底删除轨道内的东西
         /// </summary>
-        protected abstract void clearTrack(int i);
+        public void ClearTrack(int i) { lock (_lock) clearTrack(i); }
+        protected abstract void clearTrack(int i); // XXX: 清除轨道之后被加载的附件还是会保留, 不会自动卸下, 除非使用 SetSlotsToSetupPose
+
+        /// <summary>
+        /// 获取动画时长, 如果动画不存在则返回 0
+        /// </summary>
+        public abstract float GetAnimationDuration(string name);
 
         #endregion
 
@@ -384,11 +394,6 @@ namespace SpineViewer.Spine
         [Browsable(false)]
         public Image Preview { get; private set; }
 
-        /// <summary>
-        /// 获取动画时长, 如果动画不存在则返回 0
-        /// </summary>
-        public abstract float GetAnimationDuration(string name);
-
         /// <summary>
         /// 更新内部状态
         /// </summary>
@@ -425,128 +430,5 @@ namespace SpineViewer.Spine
 
         #endregion
 
-        /// <summary>
-        /// 多轨动画管理集合
-        /// </summary>
-        /// <param name="spine"></param>
-        public class AnimationTrackDict(Spine spine) : IDictionary<int, string>
-        {
-            private readonly Spine sp = spine;
-
-            public string this[int key]
-            {
-                get
-                {
-                    lock (sp._lock)
-                    {
-                        if (!sp.trackIndices.Contains(key))
-                            throw new KeyNotFoundException($"Track {key} not found.");
-                        return sp.getAnimation(key);
-                    }
-                }
-                set
-                {
-                    lock (sp._lock) sp.setAnimation(key, value);
-                }
-            }
-
-            public ICollection<int> Keys
-            {
-                get { lock (sp._lock) return sp.trackIndices; }
-            }
-
-            public ICollection<string> Values
-            {
-                get { lock (sp._lock) return sp.trackIndices.Select(sp.getAnimation).ToArray(); }
-            }
-
-            public int Count
-            {
-                get { lock (sp._lock) return sp.trackIndices.Length; }
-            }
-
-            public bool IsReadOnly => false;
-
-            public void Add(int key, string value)
-            {
-                lock (sp._lock) sp.setAnimation(key, value);
-            }
-
-            public void Add(KeyValuePair<int, string> item)
-            {
-                lock (sp._lock) sp.setAnimation(item.Key, item.Value);
-            }
-
-            public void Clear()
-            {
-                lock (sp._lock) foreach (var i in sp.trackIndices) sp.setAnimation(i, EMPTY_ANIMATION);
-            }
-
-            public bool Contains(KeyValuePair<int, string> item)
-            {
-                lock (sp._lock) return sp.trackIndices.Contains(item.Key) && sp.getAnimation(item.Key) == item.Value;
-            }
-
-            public bool ContainsKey(int key)
-            {
-                lock (sp._lock) return sp.trackIndices.Contains(key);
-            }
-
-            public void CopyTo(KeyValuePair<int, string>[] array, int arrayIndex)
-            {
-                lock (sp._lock) foreach (var i in sp.trackIndices) array[arrayIndex++] = new KeyValuePair<int, string>(i, sp.getAnimation(i));
-            }
-
-            public IEnumerator<KeyValuePair<int, string>> GetEnumerator()
-            {
-                List<KeyValuePair<int, string>> cache;
-                lock (sp._lock)
-                {
-                    cache = sp.trackIndices.Select(i => new KeyValuePair<int, string>(i, sp.getAnimation(i))).ToList();
-                }
-                foreach (var item in cache)
-                {
-                    yield return item;
-                }
-            }
-
-            public bool Remove(int key)
-            {
-                lock (sp._lock)
-                {
-                    sp.setAnimation(key, EMPTY_ANIMATION);
-                    sp.clearTrack(key);
-                }
-                return true;
-            }
-
-            public bool Remove(KeyValuePair<int, string> item)
-            {
-                lock (sp._lock)
-                {
-                    sp.setAnimation(item.Key, EMPTY_ANIMATION);
-                    sp.clearTrack(item.Key);
-                }
-                return true;
-            }
-
-            public bool TryGetValue(int key, [MaybeNullWhen(false)] out string value)
-            {
-                value = null;
-                lock (sp._lock)
-                {
-                    if (!sp.trackIndices.Contains(key)) return false;
-                    value = sp.getAnimation(key);
-                    return true;
-                }
-            }
-
-            public override string ToString()
-            {
-                lock (sp._lock) return string.Join(", ", sp.trackIndices.Select(sp.getAnimation));
-            }
-
-            IEnumerator IEnumerable.GetEnumerator() => GetEnumerator();
-        }
     }
 }

SpineViewer/Spine/TypeConverter.cs

@@ -21,6 +21,32 @@ namespace SpineViewer.Spine
         }
     }
 
+    public class SkinConverter : StringConverter
+    {
+        public override bool GetStandardValuesSupported(ITypeDescriptorContext? context) => true;
+
+        public override bool GetStandardValuesExclusive(ITypeDescriptorContext? context) => true;
+
+        public override StandardValuesCollection? GetStandardValues(ITypeDescriptorContext? context)
+        {
+            if (context?.Instance is Spine obj)
+            {
+                return new StandardValuesCollection(obj.SkinNames);
+            }
+            else if (context?.Instance is Spine[] spines)
+            {
+                if (spines.Length > 0)
+                {
+                    IEnumerable<string> common = spines[0].SkinNames;
+                    foreach (var spine in spines.Skip(1))
+                        common = common.Union(spine.SkinNames);
+                    return new StandardValuesCollection(common.ToArray());
+                }
+            }
+            return base.GetStandardValues(context);
+        }
+    }
+
     public class AnimationConverter : StringConverter
     {
         public override bool GetStandardValuesSupported(ITypeDescriptorContext? context) => true;
@@ -47,25 +73,34 @@ namespace SpineViewer.Spine
         }
     }
 
-    public class SkinConverter : StringConverter
+    /// <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 TrackWrapperConverter : ExpandableObjectConverter
     {
+        // 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 Spine obj)
+            if (context.Instance is AnimationTracksType animTrack)
             {
-                return new StandardValuesCollection(obj.SkinNames);
+                return new StandardValuesCollection(animTrack.Spine.AnimationNames);
             }
-            else if (context?.Instance is Spine[] spines)
+            else if (context.Instance is object[] instances && instances.All(x => x is AnimationTracksType))
             {
-                if (spines.Length > 0)
+                // XXX: 这里不知道为啥总是会得到 object[] 类型而不是具体的 AnimationTracksType[] 类型
+                var animTracks = instances.Cast<AnimationTracksType>().ToArray();
+                if (animTracks.Length > 0)
                 {
-                    IEnumerable<string> common = spines[0].SkinNames;
-                    foreach (var spine in spines.Skip(1))
-                        common = common.Union(spine.SkinNames);
+                    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());
                 }
             }

SpineViewer/Spine/UITypeEditor.cs

@@ -1,4 +1,5 @@
-using System;
+using SpineViewer.Dialogs;
+using System;
 using System.Collections.Generic;
 using System.ComponentModel;
 using System.Drawing.Design;
@@ -36,4 +37,28 @@ namespace SpineViewer.Spine
             openFileDialog.Filter = "atlas 文件 (*.atlas)|*.atlas|所有文件 (*.*)|*.*";
         }
     }
+
+    /// <summary>
+    /// 多轨道动画编辑器
+    /// </summary>
+    public class AnimationTracksEditor : UITypeEditor
+    {
+        public override UITypeEditorEditStyle GetEditStyle(ITypeDescriptorContext? context) => UITypeEditorEditStyle.Modal;
+
+        public override object? EditValue(ITypeDescriptorContext? context, IServiceProvider provider, object? value)
+        {
+            if (provider == null || context == null || context.Instance is not Spine)
+                return value;
+
+            IWindowsFormsEditorService editorService = provider.GetService(typeof(IWindowsFormsEditorService)) as IWindowsFormsEditorService;
+            if (editorService == null)
+                return value;
+
+            using (var dialog = new AnimationTracksEditorDialog((Spine)context.Instance))
+                editorService.ShowDialog(dialog);
+
+            TypeDescriptor.Refresh(context.Instance);
+            return value;
+        }
+    }
 }