DYN-10382 - Cherry-pick multi-font and bold/italic support

src/Text.cs

@@ -1,5 +1,7 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
 using System.Globalization;
+using System.Linq;
 using System.Windows;
 using System.Windows.Media;
 using Autodesk.DesignScript.Geometry;
@@ -9,18 +11,29 @@ namespace DynamoText
 {
     public static class Text
     {
-        public static IEnumerable<Curve> FromStringOriginAndScale(string text, Point origin, double scale)
+        public static IEnumerable<Curve> FromStringOriginAndScale(
+            string text,
+            Point origin,
+            double scale,
+            string fontFamily = "Arial",
+            bool bold = false,
+            bool italic = false)
         {
             //http://msdn.microsoft.com/en-us/library/ms745816(v=vs.110).aspx
 
             var crvs = new List<Curve>();
 
-            var font = new System.Windows.Media.FontFamily("Arial");
-            var fontStyle = FontStyles.Normal;
-            var fontWeight = FontWeights.Medium;
+            // Validate that the font family exists
+            if (!Fonts.SystemFontFamilies.Any(f => f.Source.Equals(fontFamily, StringComparison.OrdinalIgnoreCase)))
+            {
+                throw new ArgumentException(
+                    $"Font family '{fontFamily}' not found. Use GetInstalledFontNames() to get a list of available fonts.",
+                    nameof(fontFamily));
+            }
 
-            //if (Bold == true) fontWeight = FontWeights.Bold;
-            //if (Italic == true) fontStyle = FontStyles.Italic;
+            var font = new System.Windows.Media.FontFamily(fontFamily);
+            var fontStyle = italic ? FontStyles.Italic : FontStyles.Normal;
+            var fontWeight = bold ? FontWeights.Bold : FontWeights.Medium;
 
             // Create the formatted text based on the properties set.
             var formattedText = new FormattedText(
@@ -73,6 +86,14 @@ public static IEnumerable<Curve> FromStringOriginAndScale(string text, Point ori
             return crvs;
         }
 
+        public static IList<string> GetInstalledFontNames()
+        {
+            return Fonts.SystemFontFamilies
+                .Select(f => f.Source)
+                .OrderBy(name => name, StringComparer.OrdinalIgnoreCase)
+                .ToList();
+        }
+
         private static Line LineBetweenPoints(Point origin, double scale, System.Windows.Point a, System.Windows.Point b)
         {
             var pt1 = Point.ByCoordinates((a.X * scale) + origin.X, ((-a.Y + 1) * scale) + origin.Y, origin.Z);