增加 export 命令

SpineViewerCLI/Utils.cs

@@ -0,0 +1,67 @@
+using SFML.Graphics;
+using System;
+using System.Collections.Generic;
+using System.CommandLine.Parsing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SpineViewerCLI
+{
+    public static class Utils
+    {
+        public static Color ParseColor(ArgumentResult result)
+        {
+            var token = result.Tokens.Count > 0 ? result.Tokens[0].Value : null;
+            if (string.IsNullOrWhiteSpace(token))
+                return Color.Black;
+
+            try
+            {
+                // 去掉开头的 #
+                var hex = token.Trim().TrimStart('#');
+
+                // 支持格式: RGB / ARGB / RRGGBB / AARRGGBB
+                if (hex.Length == 3)
+                {
+                    // #RGB → #RRGGBB
+                    var r = hex[0];
+                    var g = hex[1];
+                    var b = hex[2];
+                    hex = $"{r}{r}{g}{g}{b}{b}";
+                    hex = "FF" + hex; // 加上不透明 alpha
+                }
+                else if (hex.Length == 4)
+                {
+                    // #ARGB → #AARRGGBB
+                    var a = hex[0];
+                    var r = hex[1];
+                    var g = hex[2];
+                    var b = hex[3];
+                    hex = $"{a}{a}{r}{r}{g}{g}{b}{b}";
+                }
+                else if (hex.Length == 6)
+                {
+                    // #RRGGBB → #AARRGGBB
+                    hex = "FF" + hex;
+                }
+                else if (hex.Length != 8)
+                {
+                    result.AddError("Invalid color format. Use #RGB, #ARGB, #RRGGBB, or #AARRGGBB.");
+                    return Color.Black;
+                }
+
+                var aVal = Convert.ToByte(hex[..2], 16);
+                var rVal = Convert.ToByte(hex.Substring(2, 2), 16);
+                var gVal = Convert.ToByte(hex.Substring(4, 2), 16);
+                var bVal = Convert.ToByte(hex.Substring(6, 2), 16);
+                return new(rVal, gVal, bVal, aVal);
+            }
+            catch
+            {
+                result.AddError("Invalid color format.");
+                return Color.Black;
+            }
+        }
+    }
+}