Merge pull request #97 from articulate/BoundsPerformance

Performance Improvement

Source/Painting/SvgRadialGradientServer.cs

@@ -127,7 +127,7 @@ namespace Svg
 
                 using (var transform = EffectiveGradientTransform)
                 {
-                    var bounds = renderer.GetBoundable().Bounds;
+                    var bounds = renderer.GetBoundable().CalculateBounds();
                     transform.Translate(bounds.X, bounds.Y, MatrixOrder.Prepend);
                     if (this.GradientUnits == SvgCoordinateUnits.ObjectBoundingBox)
                     {

Source/Paths/SvgPath.cs

@@ -114,10 +114,10 @@ namespace Svg
         /// <summary>
         /// Gets the bounds of the element.
         /// </summary>
-        /// <value>The bounds.</value>
-        public override System.Drawing.RectangleF Bounds
+        /// <returns>The bounds.</returns>
+        public override RectangleF CalculateBounds()
         {
-            get { return this.Path(null).GetBounds(); }
+            return this.Path(null).GetBounds();
         }
 
         /// <summary>

Source/Rendering/SvgRenderer.cs

@@ -18,7 +18,7 @@ namespace Svg
 
         public void SetBoundable(ISvgBoundable boundable)
         {
-            _boundables.Push(boundable);
+            _boundables.Push(new ImmutableBoundable(boundable));
         }
         public ISvgBoundable GetBoundable()
         {

Source/Svg.csproj

@@ -109,6 +109,7 @@
     <Compile Include="Document Structure\SvgSymbol.cs" />
     <Compile Include="Filter Effects\ImageBuffer.cs" />
     <Compile Include="Painting\GenericBoundable.cs" />
+    <Compile Include="Painting\ImmutableBoundable.cs" />
     <Compile Include="Painting\SvgFallbackPaintServer .cs" />
     <Compile Include="Paths\CoordinateParser.cs" />
     <Compile Include="Rendering\IGraphicsProvider.cs" />

Source/Text/SvgGlyph.cs

@@ -91,10 +91,10 @@ namespace Svg
         /// <summary>
         /// Gets the bounds of the element.
         /// </summary>
-        /// <value>The bounds.</value>
-        public override System.Drawing.RectangleF Bounds
+        /// <returns>The bounds.</returns>
+        public override System.Drawing.RectangleF CalculateBounds()
         {
-            get { return this.Path(null).GetBounds(); }
+            return this.Path(null).GetBounds();
         }
 
         /// <summary>

Source/Text/SvgTextBase.cs

@@ -227,10 +227,8 @@ namespace Svg
         /// <summary>
         /// Gets the bounds of the element.
         /// </summary>
-        /// <value>The bounds.</value>
-        public override System.Drawing.RectangleF Bounds
-        {
-            get 
+        /// <returns>The bounds.</returns>
+        public override RectangleF CalculateBounds()
         {
             var path = this.Path(null);
             foreach (var elem in this.Children.OfType<SvgVisualElement>())
@@ -239,7 +237,6 @@ namespace Svg
             }
             return path.GetBounds();
         }
-        }
 
         /// <summary>
         /// Renders the <see cref="SvgElement"/> and contents to the specified <see cref="Graphics"/> object.
@@ -495,19 +492,9 @@ namespace Svg
                 _width = width;
             }
 
-            public PointF Location
-            {
-                get { return PointF.Empty; }
-            }
-
-            public SizeF Size
-            {
-                get { return new SizeF(_width, _font.Size); }
-            }
-
-            public RectangleF Bounds
+            public RectangleF CalculateBounds()
             {
-                get { return new RectangleF(this.Location, this.Size); }
+                return new RectangleF(PointF.Empty, new SizeF(_width, _font.Size));
             }
         }