增加预览图导出功能

SpineViewer/Controls/SpineListView.cs

@@ -40,46 +40,6 @@ namespace SpineViewer.Controls
         /// </summary>
         public ListView.SelectedIndexCollection SelectedIndices { get => listView.SelectedIndices; }
 
-        /// <summary>
-        /// 弹出添加对话框在指定位置之前插入一项
-        /// </summary>
-        private void Insert(int index = -1)
-        {
-            var dialog = new Dialogs.OpenSpineDialog();
-            if (dialog.ShowDialog() != DialogResult.OK)
-                return;
-
-            try
-            {
-                var spine = Spine.Spine.New(dialog.Version, dialog.SkelPath, dialog.AtlasPath);
-
-                // 如果索引无效则在末尾添加
-                if (index < 0 || index > listView.Items.Count)
-                    index = listView.Items.Count;
-
-                // 锁定外部的读操作
-                lock (Spines)
-                {
-                    spines.Insert(index, spine);
-                    listView.SmallImageList.Images.Add(spine.ID, spine.Preview);
-                    listView.LargeImageList.Images.Add(spine.ID, spine.Preview);
-                }
-                listView.Items.Insert(index, new ListViewItem(spine.Name, spine.ID) { ToolTipText = spine.SkelPath });
-
-                // 选中新增项
-                listView.SelectedIndices.Clear();
-                listView.SelectedIndices.Add(index);
-            }
-            catch (Exception ex)
-            {
-                Program.Logger.Error(ex.ToString());
-                Program.Logger.Error("Failed to load {} {}", dialog.SkelPath, dialog.AtlasPath);
-                MessageBox.Show(ex.ToString(), "骨骼加载失败", MessageBoxButtons.OK, MessageBoxIcon.Error);
-            }
-
-            Program.Logger.Info($"Current memory usage: {Program.Process.WorkingSet64 / 1024.0 / 1024.0:F2} MB");
-        }
-
         /// <summary>
         /// 弹出添加对话框
         /// </summary>
@@ -103,61 +63,25 @@ namespace SpineViewer.Controls
             progressDialog.ShowDialog();
         }
 
-        private void BatchAdd_Work(object? sender, DoWorkEventArgs e)
+        public void ExportPreviews()
         {
-            var worker = sender as BackgroundWorker;
+            lock (Spines)
-            var arguments = e.Argument as Dialogs.BatchOpenSpineDialog;
-            var skelPaths = arguments.SkelPaths;
-            var version = arguments.Version;
-
-            int totalCount = skelPaths.Length;
-            int success = 0;
-            int error = 0;
-
-            worker.ReportProgress(0, $"已处理 0/{totalCount}");
-            for (int i = 0; i < totalCount; i++)
             {
-                if (worker.CancellationPending)
+                if (spines.Count <= 0)
                 {
-                    e.Cancel = true;
+                    MessageBox.Show("请至少打开一个骨骼文件", "提示信息", MessageBoxButtons.OK, MessageBoxIcon.Information);
-                    break;
+                    return;
                 }
-
-                var skelPath = skelPaths[i];
-
-                try
-                {
-                    var spine = Spine.Spine.New(version, skelPath);
-                    var preview = spine.Preview;
-                    lock (Spines) { spines.Add(spine); }
-                    listView.Invoke(() =>
-                    {
-                        listView.SmallImageList.Images.Add(spine.ID, preview);
-                        listView.LargeImageList.Images.Add(spine.ID, preview);
-                        listView.Items.Add(new ListViewItem(spine.Name, spine.ID) { ToolTipText = spine.SkelPath });
-                    });
-                    success++;
-                }
-                catch (Exception ex)
-                {
-                    Program.Logger.Error(ex.ToString());
-                    Program.Logger.Error("Failed to load {}", skelPath);
-                    error++;
-                }
-
-                worker.ReportProgress((int)((i + 1) * 100.0) / totalCount, $"已处理 {i + 1}/{totalCount}");
             }
 
-            if (error > 0)
+            var saveDialog = new Dialogs.ExportPreviewDialog();
-            {
+            if (saveDialog.ShowDialog() != DialogResult.OK)
-                Program.Logger.Warn("Batch load {} successfully, {} failed", success, error);
+                return;
-            }
-            else
-            {
-                Program.Logger.Info("{} skel loaded successfully", success);
-            }
 
-            Program.Logger.Info($"Current memory usage: {Program.Process.WorkingSet64 / 1024.0 / 1024.0:F2} MB");
+            var progressDialog = new Dialogs.ProgressDialog();
+            progressDialog.DoWork += ExportPreview_Work;
+            progressDialog.RunWorkerAsync(saveDialog);
+            progressDialog.ShowDialog();
         }
 
         private void listView_SelectedIndexChanged(object sender, EventArgs e)
@@ -379,5 +303,155 @@ namespace SpineViewer.Controls
         {
             listView.View = View.Details;
         }
+
+        /// <summary>
+        /// 弹出添加对话框在指定位置之前插入一项
+        /// </summary>
+        private void Insert(int index = -1)
+        {
+            var dialog = new Dialogs.OpenSpineDialog();
+            if (dialog.ShowDialog() != DialogResult.OK)
+                return;
+
+            try
+            {
+                var spine = Spine.Spine.New(dialog.Version, dialog.SkelPath, dialog.AtlasPath);
+
+                // 如果索引无效则在末尾添加
+                if (index < 0 || index > listView.Items.Count)
+                    index = listView.Items.Count;
+
+                // 锁定外部的读操作
+                lock (Spines)
+                {
+                    spines.Insert(index, spine);
+                    listView.SmallImageList.Images.Add(spine.ID, spine.Preview);
+                    listView.LargeImageList.Images.Add(spine.ID, spine.Preview);
+                }
+                listView.Items.Insert(index, new ListViewItem(spine.Name, spine.ID) { ToolTipText = spine.SkelPath });
+
+                // 选中新增项
+                listView.SelectedIndices.Clear();
+                listView.SelectedIndices.Add(index);
+            }
+            catch (Exception ex)
+            {
+                Program.Logger.Error(ex.ToString());
+                Program.Logger.Error("Failed to load {} {}", dialog.SkelPath, dialog.AtlasPath);
+                MessageBox.Show(ex.ToString(), "骨骼加载失败", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+
+            Program.Logger.Info($"Current memory usage: {Program.Process.WorkingSet64 / 1024.0 / 1024.0:F2} MB");
+        }
+
+        private void BatchAdd_Work(object? sender, DoWorkEventArgs e)
+        {
+            var worker = sender as BackgroundWorker;
+            var arguments = e.Argument as Dialogs.BatchOpenSpineDialog;
+            var skelPaths = arguments.SkelPaths;
+            var version = arguments.Version;
+
+            int totalCount = skelPaths.Length;
+            int success = 0;
+            int error = 0;
+
+            worker.ReportProgress(0, $"已处理 0/{totalCount}");
+            for (int i = 0; i < totalCount; i++)
+            {
+                if (worker.CancellationPending)
+                {
+                    e.Cancel = true;
+                    break;
+                }
+
+                var skelPath = skelPaths[i];
+
+                try
+                {
+                    var spine = Spine.Spine.New(version, skelPath);
+                    var preview = spine.Preview;
+                    lock (Spines) { spines.Add(spine); }
+                    listView.Invoke(() =>
+                    {
+                        listView.SmallImageList.Images.Add(spine.ID, preview);
+                        listView.LargeImageList.Images.Add(spine.ID, preview);
+                        listView.Items.Add(new ListViewItem(spine.Name, spine.ID) { ToolTipText = spine.SkelPath });
+                    });
+                    success++;
+                }
+                catch (Exception ex)
+                {
+                    Program.Logger.Error(ex.ToString());
+                    Program.Logger.Error("Failed to load {}", skelPath);
+                    error++;
+                }
+
+                worker.ReportProgress((int)((i + 1) * 100.0) / totalCount, $"已处理 {i + 1}/{totalCount}");
+            }
+
+            if (error > 0)
+            {
+                Program.Logger.Warn("Batch load {} successfully, {} failed", success, error);
+            }
+            else
+            {
+                Program.Logger.Info("{} skel loaded successfully", success);
+            }
+
+            Program.Logger.Info($"Current memory usage: {Program.Process.WorkingSet64 / 1024.0 / 1024.0:F2} MB");
+        }
+
+        private void ExportPreview_Work(object? sender, DoWorkEventArgs e)
+        {
+            var worker = sender as BackgroundWorker;
+            var arguments = e.Argument as Dialogs.ExportPreviewDialog;
+            var outputDir = arguments.OutputDir;
+            var width = arguments.PreviewWidth;
+            var height = arguments.PreviewHeight;
+
+            int success = 0;
+            int error = 0;
+            lock (Spines)
+            {
+                int totalCount = spines.Count;
+                worker.ReportProgress(0, $"已处理 0/{totalCount}");
+                for (int i = 0; i < totalCount; i++)
+                {
+                    if (worker.CancellationPending)
+                    {
+                        e.Cancel = true;
+                        break;
+                    }
+
+                    var spine = spines[i];
+                    try
+                    {
+                        var preview = spine.GetPreview(width, height);
+                        var savePath = Path.Combine(outputDir, $"{spine.Name}.png");
+                        preview.SaveToFile(savePath);
+                        success++;
+                    }
+                    catch (Exception ex)
+                    {
+                        Program.Logger.Error(ex.ToString());
+                        Program.Logger.Error("Failed to save preview {}", spine.SkelPath);
+                        error++;
+                    }
+
+                    worker.ReportProgress((int)((i + 1) * 100.0) / totalCount, $"已处理 {i + 1}/{totalCount}");
+                }
+            }
+
+            if (error > 0)
+            {
+                Program.Logger.Warn("Preview save {} successfully, {} failed", success, error);
+            }
+            else
+            {
+                Program.Logger.Info("{} preview saved successfully", success);
+            }
+
+            Program.Logger.Info($"Current memory usage: {Program.Process.WorkingSet64 / 1024.0 / 1024.0:F2} MB");
+        }
     }
 }

SpineViewer/Dialogs/ExportPreviewDialog.Designer.cs

@@ -0,0 +1,269 @@
+namespace SpineViewer.Dialogs
+{
+    partial class ExportPreviewDialog
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            System.ComponentModel.ComponentResourceManager resources = new System.ComponentModel.ComponentResourceManager(typeof(ExportPreviewDialog));
+            panel1 = new Panel();
+            tableLayoutPanel1 = new TableLayoutPanel();
+            label4 = new Label();
+            label1 = new Label();
+            label2 = new Label();
+            label3 = new Label();
+            textBox_OutputDir = new TextBox();
+            button_SelectOutputDir = new Button();
+            tableLayoutPanel2 = new TableLayoutPanel();
+            button_Ok = new Button();
+            button_Cancel = new Button();
+            numericUpDown_Width = new NumericUpDown();
+            numericUpDown_Height = new NumericUpDown();
+            folderBrowserDialog = new FolderBrowserDialog();
+            panel1.SuspendLayout();
+            tableLayoutPanel1.SuspendLayout();
+            tableLayoutPanel2.SuspendLayout();
+            ((System.ComponentModel.ISupportInitialize)numericUpDown_Width).BeginInit();
+            ((System.ComponentModel.ISupportInitialize)numericUpDown_Height).BeginInit();
+            SuspendLayout();
+            // 
+            // panel1
+            // 
+            panel1.Controls.Add(tableLayoutPanel1);
+            panel1.Dock = DockStyle.Fill;
+            panel1.Location = new Point(0, 0);
+            panel1.Name = "panel1";
+            panel1.Padding = new Padding(50, 15, 50, 10);
+            panel1.Size = new Size(919, 276);
+            panel1.TabIndex = 2;
+            // 
+            // tableLayoutPanel1
+            // 
+            tableLayoutPanel1.AutoSize = true;
+            tableLayoutPanel1.ColumnCount = 4;
+            tableLayoutPanel1.ColumnStyles.Add(new ColumnStyle());
+            tableLayoutPanel1.ColumnStyles.Add(new ColumnStyle(SizeType.Percent, 50F));
+            tableLayoutPanel1.ColumnStyles.Add(new ColumnStyle(SizeType.Percent, 50F));
+            tableLayoutPanel1.ColumnStyles.Add(new ColumnStyle());
+            tableLayoutPanel1.Controls.Add(label4, 0, 0);
+            tableLayoutPanel1.Controls.Add(label1, 0, 1);
+            tableLayoutPanel1.Controls.Add(label2, 0, 2);
+            tableLayoutPanel1.Controls.Add(label3, 0, 3);
+            tableLayoutPanel1.Controls.Add(textBox_OutputDir, 1, 1);
+            tableLayoutPanel1.Controls.Add(button_SelectOutputDir, 3, 1);
+            tableLayoutPanel1.Controls.Add(tableLayoutPanel2, 0, 4);
+            tableLayoutPanel1.Controls.Add(numericUpDown_Width, 1, 2);
+            tableLayoutPanel1.Controls.Add(numericUpDown_Height, 1, 3);
+            tableLayoutPanel1.Dock = DockStyle.Fill;
+            tableLayoutPanel1.Location = new Point(50, 15);
+            tableLayoutPanel1.Name = "tableLayoutPanel1";
+            tableLayoutPanel1.RowCount = 5;
+            tableLayoutPanel1.RowStyles.Add(new RowStyle());
+            tableLayoutPanel1.RowStyles.Add(new RowStyle());
+            tableLayoutPanel1.RowStyles.Add(new RowStyle());
+            tableLayoutPanel1.RowStyles.Add(new RowStyle());
+            tableLayoutPanel1.RowStyles.Add(new RowStyle());
+            tableLayoutPanel1.Size = new Size(819, 251);
+            tableLayoutPanel1.TabIndex = 0;
+            // 
+            // label4
+            // 
+            label4.AutoSize = true;
+            tableLayoutPanel1.SetColumnSpan(label4, 4);
+            label4.Dock = DockStyle.Fill;
+            label4.Location = new Point(15, 15);
+            label4.Margin = new Padding(15);
+            label4.Name = "label4";
+            label4.Size = new Size(789, 24);
+            label4.TabIndex = 11;
+            label4.Text = "说明：导出的文件名与骨骼文件名相同";
+            label4.TextAlign = ContentAlignment.MiddleCenter;
+            // 
+            // label1
+            // 
+            label1.Anchor = AnchorStyles.Right;
+            label1.AutoSize = true;
+            label1.Location = new Point(3, 62);
+            label1.Name = "label1";
+            label1.Size = new Size(104, 24);
+            label1.TabIndex = 0;
+            label1.Text = "输出文件夹:";
+            // 
+            // label2
+            // 
+            label2.Anchor = AnchorStyles.Right;
+            label2.AutoSize = true;
+            label2.Location = new Point(75, 100);
+            label2.Name = "label2";
+            label2.Size = new Size(32, 24);
+            label2.TabIndex = 1;
+            label2.Text = "宽:";
+            // 
+            // label3
+            // 
+            label3.Anchor = AnchorStyles.Right;
+            label3.AutoSize = true;
+            label3.Location = new Point(75, 136);
+            label3.Name = "label3";
+            label3.Size = new Size(32, 24);
+            label3.TabIndex = 2;
+            label3.Text = "高:";
+            // 
+            // textBox_OutputDir
+            // 
+            tableLayoutPanel1.SetColumnSpan(textBox_OutputDir, 2);
+            textBox_OutputDir.Dock = DockStyle.Fill;
+            textBox_OutputDir.Location = new Point(113, 57);
+            textBox_OutputDir.Name = "textBox_OutputDir";
+            textBox_OutputDir.Size = new Size(664, 30);
+            textBox_OutputDir.TabIndex = 3;
+            // 
+            // button_SelectOutputDir
+            // 
+            button_SelectOutputDir.AutoSize = true;
+            button_SelectOutputDir.AutoSizeMode = AutoSizeMode.GrowAndShrink;
+            button_SelectOutputDir.Location = new Point(783, 57);
+            button_SelectOutputDir.Name = "button_SelectOutputDir";
+            button_SelectOutputDir.Size = new Size(32, 34);
+            button_SelectOutputDir.TabIndex = 5;
+            button_SelectOutputDir.Text = "...";
+            button_SelectOutputDir.UseVisualStyleBackColor = true;
+            button_SelectOutputDir.Click += button_SelectOutputDir_Click;
+            // 
+            // tableLayoutPanel2
+            // 
+            tableLayoutPanel2.AutoSize = true;
+            tableLayoutPanel2.AutoSizeMode = AutoSizeMode.GrowAndShrink;
+            tableLayoutPanel2.ColumnCount = 2;
+            tableLayoutPanel1.SetColumnSpan(tableLayoutPanel2, 4);
+            tableLayoutPanel2.ColumnStyles.Add(new ColumnStyle(SizeType.Percent, 50F));
+            tableLayoutPanel2.ColumnStyles.Add(new ColumnStyle(SizeType.Percent, 50F));
+            tableLayoutPanel2.Controls.Add(button_Ok, 0, 0);
+            tableLayoutPanel2.Controls.Add(button_Cancel, 1, 0);
+            tableLayoutPanel2.Dock = DockStyle.Bottom;
+            tableLayoutPanel2.Location = new Point(3, 208);
+            tableLayoutPanel2.Name = "tableLayoutPanel2";
+            tableLayoutPanel2.RowCount = 1;
+            tableLayoutPanel2.RowStyles.Add(new RowStyle());
+            tableLayoutPanel2.Size = new Size(813, 40);
+            tableLayoutPanel2.TabIndex = 10;
+            // 
+            // button_Ok
+            // 
+            button_Ok.Anchor = AnchorStyles.Bottom | AnchorStyles.Right;
+            button_Ok.Location = new Point(264, 3);
+            button_Ok.Margin = new Padding(3, 3, 30, 3);
+            button_Ok.Name = "button_Ok";
+            button_Ok.Size = new Size(112, 34);
+            button_Ok.TabIndex = 7;
+            button_Ok.Text = "确认";
+            button_Ok.UseVisualStyleBackColor = true;
+            button_Ok.Click += button_Ok_Click;
+            // 
+            // button_Cancel
+            // 
+            button_Cancel.Anchor = AnchorStyles.Bottom | AnchorStyles.Left;
+            button_Cancel.Location = new Point(436, 3);
+            button_Cancel.Margin = new Padding(30, 3, 3, 3);
+            button_Cancel.Name = "button_Cancel";
+            button_Cancel.Size = new Size(112, 34);
+            button_Cancel.TabIndex = 8;
+            button_Cancel.Text = "取消";
+            button_Cancel.UseVisualStyleBackColor = true;
+            button_Cancel.Click += button_Cancel_Click;
+            // 
+            // numericUpDown_Width
+            // 
+            numericUpDown_Width.Anchor = AnchorStyles.Left;
+            numericUpDown_Width.Location = new Point(113, 97);
+            numericUpDown_Width.Maximum = new decimal(new int[] { 4096, 0, 0, 0 });
+            numericUpDown_Width.Minimum = new decimal(new int[] { 32, 0, 0, 0 });
+            numericUpDown_Width.Name = "numericUpDown_Width";
+            numericUpDown_Width.Size = new Size(180, 30);
+            numericUpDown_Width.TabIndex = 12;
+            numericUpDown_Width.TextAlign = HorizontalAlignment.Right;
+            numericUpDown_Width.Value = new decimal(new int[] { 256, 0, 0, 0 });
+            // 
+            // numericUpDown_Height
+            // 
+            numericUpDown_Height.Anchor = AnchorStyles.Left;
+            numericUpDown_Height.Location = new Point(113, 133);
+            numericUpDown_Height.Maximum = new decimal(new int[] { 4096, 0, 0, 0 });
+            numericUpDown_Height.Minimum = new decimal(new int[] { 32, 0, 0, 0 });
+            numericUpDown_Height.Name = "numericUpDown_Height";
+            numericUpDown_Height.Size = new Size(180, 30);
+            numericUpDown_Height.TabIndex = 13;
+            numericUpDown_Height.TextAlign = HorizontalAlignment.Right;
+            numericUpDown_Height.Value = new decimal(new int[] { 256, 0, 0, 0 });
+            // 
+            // folderBrowserDialog
+            // 
+            folderBrowserDialog.AddToRecent = false;
+            // 
+            // ExportPreviewDialog
+            // 
+            AcceptButton = button_Ok;
+            AutoScaleDimensions = new SizeF(11F, 24F);
+            AutoScaleMode = AutoScaleMode.Font;
+            CancelButton = button_Cancel;
+            ClientSize = new Size(919, 276);
+            Controls.Add(panel1);
+            FormBorderStyle = FormBorderStyle.FixedDialog;
+            Icon = (Icon)resources.GetObject("$this.Icon");
+            MaximizeBox = false;
+            MinimizeBox = false;
+            Name = "ExportPreviewDialog";
+            ShowInTaskbar = false;
+            StartPosition = FormStartPosition.CenterScreen;
+            Text = "导出预览图";
+            panel1.ResumeLayout(false);
+            panel1.PerformLayout();
+            tableLayoutPanel1.ResumeLayout(false);
+            tableLayoutPanel1.PerformLayout();
+            tableLayoutPanel2.ResumeLayout(false);
+            ((System.ComponentModel.ISupportInitialize)numericUpDown_Width).EndInit();
+            ((System.ComponentModel.ISupportInitialize)numericUpDown_Height).EndInit();
+            ResumeLayout(false);
+        }
+
+        #endregion
+
+        private Panel panel1;
+        private TableLayoutPanel tableLayoutPanel1;
+        private Label label4;
+        private Label label1;
+        private Label label2;
+        private Label label3;
+        private TextBox textBox_OutputDir;
+        private Button button_SelectOutputDir;
+        private TableLayoutPanel tableLayoutPanel2;
+        private Button button_Ok;
+        private Button button_Cancel;
+        private NumericUpDown numericUpDown_Width;
+        private NumericUpDown numericUpDown_Height;
+        private FolderBrowserDialog folderBrowserDialog;
+    }
+}

SpineViewer/Dialogs/ExportPreviewDialog.cs

@@ -0,0 +1,75 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace SpineViewer.Dialogs
+{
+    public partial class ExportPreviewDialog: Form
+    {
+        public string OutputDir { get; private set; }
+        public uint PreviewWidth { get; private set; }
+        public uint PreviewHeight { get; private set; }
+
+        public ExportPreviewDialog()
+        {
+            InitializeComponent();
+        }
+
+        private void button_SelectOutputDir_Click(object sender, EventArgs e)
+        {
+            folderBrowserDialog.InitialDirectory = textBox_OutputDir.Text;
+            if (folderBrowserDialog.ShowDialog() == DialogResult.OK)
+            {
+                textBox_OutputDir.Text = Path.GetFullPath(folderBrowserDialog.SelectedPath);
+            }
+        }
+
+        private void button_Ok_Click(object sender, EventArgs e)
+        {
+            var outputDir = textBox_OutputDir.Text;
+            if (File.Exists(outputDir))
+            {
+                MessageBox.Show("输出文件夹无效", "错误信息", MessageBoxButtons.OK, MessageBoxIcon.Information);
+                return;
+            }
+
+            if (!Directory.Exists(outputDir))
+            {
+                if (MessageBox.Show($"文件夹 {outputDir} 不存在，是否创建？", "操作确认", MessageBoxButtons.OKCancel, MessageBoxIcon.Question) == DialogResult.OK)
+                {
+                    try
+                    {
+                        Directory.CreateDirectory(outputDir);
+                    }
+                    catch (Exception ex)
+                    {
+                        Program.Logger.Error(ex.ToString());
+                        MessageBox.Show(ex.ToString(), "文件夹创建失败", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                        return;
+                    }
+                }
+                else
+                {
+                    return;
+                }
+            }
+
+            OutputDir = Path.GetFullPath(outputDir);
+            PreviewWidth = (uint)numericUpDown_Width.Value;
+            PreviewHeight = (uint)numericUpDown_Height.Value;
+
+            DialogResult = DialogResult.OK;
+        }
+
+        private void button_Cancel_Click(object sender, EventArgs e)
+        {
+            DialogResult = DialogResult.Cancel;
+        }
+    }
+}

SpineViewer/MainForm.Designer.cs

@@ -63,6 +63,7 @@
             spinePreviewer = new SpineViewer.Controls.SpinePreviewer();
             panel_MainForm = new Panel();
             toolTip = new ToolTip(components);
+            toolStripMenuItem_ExportPreview = new ToolStripMenuItem();
             menuStrip.SuspendLayout();
             ((System.ComponentModel.ISupportInitialize)splitContainer_MainForm).BeginInit();
             splitContainer_MainForm.Panel1.SuspendLayout();
@@ -100,7 +101,7 @@
             // 
             // toolStripMenuItem_File
             // 
-            toolStripMenuItem_File.DropDownItems.AddRange(new ToolStripItem[] { toolStripMenuItem_Open, toolStripMenuItem_BatchOpen, toolStripSeparator1, toolStripMenuItem_Export, toolStripSeparator2, toolStripMenuItem_Exit });
+            toolStripMenuItem_File.DropDownItems.AddRange(new ToolStripItem[] { toolStripMenuItem_Open, toolStripMenuItem_BatchOpen, toolStripSeparator1, toolStripMenuItem_Export, toolStripMenuItem_ExportPreview, toolStripSeparator2, toolStripMenuItem_Exit });
             toolStripMenuItem_File.Name = "toolStripMenuItem_File";
             toolStripMenuItem_File.Size = new Size(84, 28);
             toolStripMenuItem_File.Text = "文件(&F)";
@@ -109,40 +110,40 @@
             // 
             toolStripMenuItem_Open.Name = "toolStripMenuItem_Open";
             toolStripMenuItem_Open.ShortcutKeys = Keys.Control | Keys.O;
-            toolStripMenuItem_Open.Size = new Size(254, 34);
+            toolStripMenuItem_Open.Size = new Size(270, 34);
             toolStripMenuItem_Open.Text = "打开(&O)...";
             toolStripMenuItem_Open.Click += toolStripMenuItem_Open_Click;
             // 
             // toolStripMenuItem_BatchOpen
             // 
             toolStripMenuItem_BatchOpen.Name = "toolStripMenuItem_BatchOpen";
-            toolStripMenuItem_BatchOpen.Size = new Size(254, 34);
+            toolStripMenuItem_BatchOpen.Size = new Size(270, 34);
             toolStripMenuItem_BatchOpen.Text = "批量打开(&B)...";
             toolStripMenuItem_BatchOpen.Click += toolStripMenuItem_BatchOpen_Click;
             // 
             // toolStripSeparator1
             // 
             toolStripSeparator1.Name = "toolStripSeparator1";
-            toolStripSeparator1.Size = new Size(251, 6);
+            toolStripSeparator1.Size = new Size(267, 6);
             // 
             // toolStripMenuItem_Export
             // 
             toolStripMenuItem_Export.Name = "toolStripMenuItem_Export";
             toolStripMenuItem_Export.ShortcutKeys = Keys.Control | Keys.S;
-            toolStripMenuItem_Export.Size = new Size(254, 34);
+            toolStripMenuItem_Export.Size = new Size(270, 34);
             toolStripMenuItem_Export.Text = "导出(&E)...";
             toolStripMenuItem_Export.Click += toolStripMenuItem_Export_Click;
             // 
             // toolStripSeparator2
             // 
             toolStripSeparator2.Name = "toolStripSeparator2";
-            toolStripSeparator2.Size = new Size(251, 6);
+            toolStripSeparator2.Size = new Size(267, 6);
             // 
             // toolStripMenuItem_Exit
             // 
             toolStripMenuItem_Exit.Name = "toolStripMenuItem_Exit";
             toolStripMenuItem_Exit.ShortcutKeys = Keys.Alt | Keys.F4;
-            toolStripMenuItem_Exit.Size = new Size(254, 34);
+            toolStripMenuItem_Exit.Size = new Size(270, 34);
             toolStripMenuItem_Exit.Text = "退出(&X)";
             toolStripMenuItem_Exit.Click += toolStripMenuItem_Exit_Click;
             // 
@@ -156,7 +157,7 @@
             // toolStripMenuItem_ResetAnimation
             // 
             toolStripMenuItem_ResetAnimation.Name = "toolStripMenuItem_ResetAnimation";
-            toolStripMenuItem_ResetAnimation.Size = new Size(242, 34);
+            toolStripMenuItem_ResetAnimation.Size = new Size(270, 34);
             toolStripMenuItem_ResetAnimation.Text = "重置动画时间(&R)";
             toolStripMenuItem_ResetAnimation.Click += toolStripMenuItem_ResetAnimation_Click;
             // 
@@ -170,7 +171,7 @@
             // toolStripMenuItem_ConvertFileFormat
             // 
             toolStripMenuItem_ConvertFileFormat.Name = "toolStripMenuItem_ConvertFileFormat";
-            toolStripMenuItem_ConvertFileFormat.Size = new Size(254, 34);
+            toolStripMenuItem_ConvertFileFormat.Size = new Size(270, 34);
             toolStripMenuItem_ConvertFileFormat.Text = "转换文件格式(&C)...";
             toolStripMenuItem_ConvertFileFormat.Click += toolStripMenuItem_ConvertFileFormat_Click;
             // 
@@ -184,7 +185,7 @@
             // toolStripMenuItem_ManageResource
             // 
             toolStripMenuItem_ManageResource.Name = "toolStripMenuItem_ManageResource";
-            toolStripMenuItem_ManageResource.Size = new Size(270, 34);
+            toolStripMenuItem_ManageResource.Size = new Size(260, 34);
             toolStripMenuItem_ManageResource.Text = "管理下载资源(&M)...";
             toolStripMenuItem_ManageResource.Click += toolStripMenuItem_ManageResource_Click;
             // 
@@ -424,6 +425,13 @@
             // 
             toolTip.ShowAlways = true;
             // 
+            // toolStripMenuItem_ExportPreviews
+            // 
+            toolStripMenuItem_ExportPreview.Name = "toolStripMenuItem_ExportPreviews";
+            toolStripMenuItem_ExportPreview.Size = new Size(270, 34);
+            toolStripMenuItem_ExportPreview.Text = "导出预览图(&P)...";
+            toolStripMenuItem_ExportPreview.Click += toolStripMenuItem_ExportPreview_Click;
+            // 
             // MainForm
             // 
             AutoScaleDimensions = new SizeF(11F, 24F);
@@ -501,5 +509,6 @@
         private ToolStripMenuItem toolStripMenuItem_ManageResource;
         private ToolStripMenuItem toolStripMenuItem_Tool;
         private ToolStripMenuItem toolStripMenuItem_ConvertFileFormat;
+        private ToolStripMenuItem toolStripMenuItem_ExportPreview;
     }
 }

SpineViewer/MainForm.cs

@@ -43,6 +43,101 @@ namespace SpineViewer
             LogManager.ReconfigExistingLoggers();
         }
 
+        private void MainForm_Load(object sender, EventArgs e)
+        {
+            spinePreviewer.StartPreview();
+        }
+
+        private void MainForm_FormClosing(object sender, FormClosingEventArgs e)
+        {
+            spinePreviewer.StopPreview();
+        }
+
+        private void toolStripMenuItem_Open_Click(object sender, EventArgs e)
+        {
+            spineListView.Add();
+        }
+
+        private void toolStripMenuItem_BatchOpen_Click(object sender, EventArgs e)
+        {
+            spineListView.BatchAdd();
+        }
+
+        private void toolStripMenuItem_Export_Click(object sender, EventArgs e)
+        {
+            lock (spineListView.Spines)
+            {
+                if (spineListView.Spines.Count <= 0)
+                {
+                    MessageBox.Show("请至少打开一个骨骼文件", "提示信息", MessageBoxButtons.OK, MessageBoxIcon.Information);
+                    return;
+                }
+            }
+
+            var exportDialog = new Dialogs.ExportPngDialog();
+            if (exportDialog.ShowDialog() != DialogResult.OK)
+                return;
+
+            var progressDialog = new Dialogs.ProgressDialog();
+            progressDialog.DoWork += ExportPng_Work;
+            progressDialog.RunWorkerAsync(exportDialog);
+            progressDialog.ShowDialog();
+        }
+
+        private void toolStripMenuItem_ExportPreview_Click(object sender, EventArgs e)
+        {
+            spineListView.ExportPreviews();
+        }
+
+        private void toolStripMenuItem_Exit_Click(object sender, EventArgs e)
+        {
+            Close();
+        }
+
+        private void toolStripMenuItem_ResetAnimation_Click(object sender, EventArgs e)
+        {
+            lock (spineListView.Spines)
+            {
+                foreach (var spine in spineListView.Spines)
+                    spine.CurrentAnimation = spine.CurrentAnimation;
+            }
+        }
+
+        private void toolStripMenuItem_ConvertFileFormat_Click(object sender, EventArgs e)
+        {
+            var openDialog = new Dialogs.ConvertFileFormatDialog();
+            if (openDialog.ShowDialog() != DialogResult.OK)
+                return;
+
+            var progressDialog = new Dialogs.ProgressDialog();
+            progressDialog.DoWork += ConvertFileFormat_Work;
+            progressDialog.RunWorkerAsync(openDialog);
+            progressDialog.ShowDialog();
+        }
+
+        private void toolStripMenuItem_ManageResource_Click(object sender, EventArgs e)
+        {
+            
+        }
+
+        private void toolStripMenuItem_About_Click(object sender, EventArgs e)
+        {
+            (new Dialogs.AboutDialog()).ShowDialog();
+        }
+
+        private void toolStripMenuItem_Diagnostics_Click(object sender, EventArgs e)
+        {
+            (new Dialogs.DiagnosticsDialog()).ShowDialog();
+        }
+
+        private void splitContainer_SplitterMoved(object sender, SplitterEventArgs e) { ActiveControl = null; }
+
+        private void splitContainer_MouseUp(object sender, MouseEventArgs e) { ActiveControl = null; }
+
+        private void propertyGrid_PropertyValueChanged(object sender, PropertyValueChangedEventArgs e) { (sender as PropertyGrid)?.Refresh(); }
+
+        private void spinePreviewer_MouseUp(object sender, MouseEventArgs e) { propertyGrid_Spine.Refresh(); }
+
         private void ExportPng_Work(object? sender, DoWorkEventArgs e)
         {
             var worker = sender as BackgroundWorker;
@@ -105,73 +200,6 @@ namespace SpineViewer
             spinePreviewer.StartPreview();
         }
 
-        private void MainForm_Load(object sender, EventArgs e)
-        {
-            spinePreviewer.StartPreview();
-        }
-
-        private void MainForm_FormClosing(object sender, FormClosingEventArgs e)
-        {
-            spinePreviewer.StopPreview();
-        }
-
-        private void toolStripMenuItem_Open_Click(object sender, EventArgs e)
-        {
-            spineListView.Add();
-        }
-
-        private void toolStripMenuItem_BatchOpen_Click(object sender, EventArgs e)
-        {
-            spineListView.BatchAdd();
-        }
-
-        private void toolStripMenuItem_Export_Click(object sender, EventArgs e)
-        {
-            lock (spineListView.Spines)
-            {
-                if (spineListView.Spines.Count <= 0)
-                {
-                    MessageBox.Show("请至少打开一个骨骼文件", "提示信息", MessageBoxButtons.OK, MessageBoxIcon.Information);
-                    return;
-                }
-            }
-
-            var exportDialog = new Dialogs.ExportPngDialog();
-            if (exportDialog.ShowDialog() != DialogResult.OK)
-                return;
-
-            var progressDialog = new Dialogs.ProgressDialog();
-            progressDialog.DoWork += ExportPng_Work;
-            progressDialog.RunWorkerAsync(exportDialog);
-            progressDialog.ShowDialog();
-        }
-
-        private void toolStripMenuItem_Exit_Click(object sender, EventArgs e)
-        {
-            Close();
-        }
-
-        private void toolStripMenuItem_ResetAnimation_Click(object sender, EventArgs e)
-        {
-            lock (spineListView.Spines)
-            {
-                foreach (var spine in spineListView.Spines)
-                    spine.CurrentAnimation = spine.CurrentAnimation;
-            }
-        }
-
-        private void toolStripMenuItem_ConvertFileFormat_Click(object sender, EventArgs e)
-        {
-            var openDialog = new Dialogs.ConvertFileFormatDialog();
-            if (openDialog.ShowDialog() != DialogResult.OK)
-                return;
-
-            var progressDialog = new Dialogs.ProgressDialog();
-            progressDialog.DoWork += ConvertFileFormat_Work;
-            progressDialog.RunWorkerAsync(openDialog);
-            progressDialog.ShowDialog();
-        }
-
         private void ConvertFileFormat_Work(object? sender, DoWorkEventArgs e)
         {
             var worker = sender as BackgroundWorker;
@@ -236,28 +264,5 @@ namespace SpineViewer
                 Program.Logger.Info("{} skel converted successfully", success);
             }
         }
-
-        private void toolStripMenuItem_ManageResource_Click(object sender, EventArgs e)
-        {
-
-        }
-
-        private void toolStripMenuItem_About_Click(object sender, EventArgs e)
-        {
-            (new Dialogs.AboutDialog()).ShowDialog();
-        }
-
-        private void toolStripMenuItem_Diagnostics_Click(object sender, EventArgs e)
-        {
-            (new Dialogs.DiagnosticsDialog()).ShowDialog();
-        }
-
-        private void splitContainer_SplitterMoved(object sender, SplitterEventArgs e) { ActiveControl = null; }
-
-        private void splitContainer_MouseUp(object sender, MouseEventArgs e) { ActiveControl = null; }
-
-        private void propertyGrid_PropertyValueChanged(object sender, PropertyValueChangedEventArgs e) { (sender as PropertyGrid)?.Refresh(); }
-
-        private void spinePreviewer_MouseUp(object sender, MouseEventArgs e) { propertyGrid_Spine.Refresh(); }
     }
 }

SpineViewer/Spine/Spine.cs

@@ -244,17 +244,33 @@ namespace SpineViewer.Spine
         /// 骨骼预览图
         /// </summary>
         [Browsable(false)]
-        public Image Preview { get => preview ??= GetPreview(PREVIEW_SIZE); }
+        public Image Preview
+        {
+            get
+            {
+                if (preview is null)
+                {
+                    using var img = GetPreview((uint)PREVIEW_SIZE.Width, (uint)PREVIEW_SIZE.Height);
+                    img.SaveToMemory(out var imgBuffer, "bmp");
+                    using var stream = new MemoryStream(imgBuffer);
+                    preview = new Bitmap(stream);
+                }
+                return preview;
+            }
+        }
         private Image preview = null;
 
-        public Image GetPreview(Size size)
+        /// <summary>
+        /// 获取指定尺寸的预览图
+        /// </summary>
+        public SFML.Graphics.Image GetPreview(uint width, uint height)
         {
             var curAnimation = CurrentAnimation;
             CurrentAnimation = EMPTY_ANIMATION;
             var bounds = Bounds;
 
-            float viewX = size.Width;
+            float viewX = width;
-            float viewY = size.Height;
+            float viewY = height;
             float sizeX = bounds.Width;
             float sizeY = bounds.Height;
 
@@ -267,7 +283,7 @@ namespace SpineViewer.Spine
             viewX *= scale;
             viewY *= scale;
 
-            var tex = new SFML.Graphics.RenderTexture((uint)size.Width, (uint)size.Height);
+            using var tex = new SFML.Graphics.RenderTexture(width, height);
             var view = tex.GetView();
             view.Center = new(bounds.X + viewX / 2, bounds.Y + viewY / 2);
             view.Size = new(viewX, -viewY);
@@ -276,10 +292,7 @@ namespace SpineViewer.Spine
             tex.Draw(this);
             tex.Display();
             CurrentAnimation = curAnimation;
-            using var img = tex.Texture.CopyToImage();
+            return tex.Texture.CopyToImage();
-            img.SaveToMemory(out var imgBuffer, "bmp");
-            using var stream = new MemoryStream(imgBuffer);
-            return new Bitmap(stream);
         }
 
         /// <summary>