Bug Fixes

- Fixing path parsing algorithm to deal with nuanced arc cases and
hopefully improve performance
- Attempts at better memory management
- Working toward getting symbols to render correctly

Source/Text/SvgFontDefn.cs

@@ -45,14 +45,14 @@ namespace Svg
         public IList<System.Drawing.RectangleF> MeasureCharacters(ISvgRenderer renderer, string text)
         {
             var result = new List<RectangleF>();
-            GetPath(renderer, text, result, false);
+            using (var path = GetPath(renderer, text, result, false)) { }
             return result;
         }
 
         public System.Drawing.SizeF MeasureString(ISvgRenderer renderer, string text)
         {
             var result = new List<RectangleF>();
-            GetPath(renderer, text, result, true);
+            using (var path = GetPath(renderer, text, result, true)) { }
             var nonEmpty = result.Where(r => r != RectangleF.Empty);
             if (!nonEmpty.Any()) return SizeF.Empty;
             return new SizeF(nonEmpty.Last().Right - nonEmpty.First().Left, Ascent(renderer));
@@ -63,10 +63,12 @@ namespace Svg
             var textPath = GetPath(renderer, text, null, false);
             if (textPath.PointCount > 0)
             {
-                var translate = new Matrix();
-                translate.Translate(location.X, location.Y);
-                textPath.Transform(translate);
-                path.AddPath(textPath, false);
+                using (var translate = new Matrix())
+                {
+                    translate.Translate(location.X, location.Y);
+                    textPath.Transform(translate);
+                    path.AddPath(textPath, false);
+                }
             }
         }
 
@@ -99,6 +101,7 @@ namespace Svg
                 scaleMatrix.Scale(_emScale, -1 * _emScale, MatrixOrder.Append);
                 scaleMatrix.Translate(xPos, ascent, MatrixOrder.Append);
                 path.Transform(scaleMatrix);
+                scaleMatrix.Dispose();
 
                 bounds = path.GetBounds();
                 if (ranges != null)
@@ -126,5 +129,11 @@ namespace Svg
             if (_glyphs == null) _glyphs = _font.Descendants().OfType<SvgGlyph>().ToDictionary(g => g.Unicode ?? g.GlyphName ?? g.ID);
             if (_kerning == null) _kerning = _font.Descendants().OfType<SvgKern>().ToDictionary(k => k.Glyph1 + "|" + k.Glyph2);
         }
+
+        public void Dispose()
+        {
+            _glyphs = null;
+            _kerning = null;
+        }
     }
 }

Source/Transforms/SvgScale.cs

@@ -27,7 +27,7 @@ namespace Svg.Transforms
         {
             get
             {
-                System.Drawing.Drawing2D.Matrix matrix = new System.Drawing.Drawing2D.Matrix();
+                var matrix = new System.Drawing.Drawing2D.Matrix();
                 matrix.Scale(this.X, this.Y);
                 return matrix;
             }

Tests/SvgW3CTestRunner/View.cs

@@ -32,6 +32,7 @@ namespace SvgW3CTestRunner
             var fileName = lstFiles.SelectedItem.ToString();
             try
             {
+                Debug.Print(fileName);
                 var doc = SvgDocument.Open(_svgBasePath + fileName);
                 if (fileName.StartsWith("__"))
                 {