Serialization Bug Fixes

Added parameter to the SvgAttribute indicating whether the storage is
the _attribute dictionary.  If true, the output will only be serialized
only if the key is in the dictionary.  This structure is an alternate to
the SvgDefinitionDefaults class.

Source/Painting/SvgDeferredPaintServer.cs

@@ -81,7 +81,14 @@ namespace Svg
 
         public override string ToString()
         {
-            return (_serverLoaded ? _serverLoaded.ToString() : string.Format("deferred: {0}", this.DeferredId));
+            if (this.DeferredId == "currentColor")
+            {
+                return this.DeferredId;
+            }
+            else
+            {
+                return string.Format("url({0})", this.DeferredId);
+            }
         }
 
         public static T TryGet<T>(SvgPaintServer server, SvgElement parent) where T : SvgPaintServer

Source/Painting/SvgPaintServerFactory.cs

@@ -135,15 +135,22 @@ namespace Svg
             if (destinationType == typeof(string))
             {
                 //check for none
-                if (value == SvgPaintServer.None) return "none";
+                if (value == SvgPaintServer.None || value == SvgColourServer.None) return "none";
+                if (value == SvgColourServer.Inherit) return "inherit";
+                if (value == SvgColourServer.NotSet) return "";
 
                 var colourServer = value as SvgColourServer;
-
                 if (colourServer != null)
                 {
                     return new SvgColourConverter().ConvertTo(colourServer.Colour, typeof(string));
                 }
 
+                var deferred = value as SvgDeferredPaintServer;
+                if (deferred != null)
+                {
+                    return deferred.ToString();
+                }
+
                 if (value != null)
                 {
                     return string.Format(CultureInfo.InvariantCulture, "url(#{0})", ((SvgPaintServer)value).ID);

Source/Paths/SvgPath.cs

@@ -22,7 +22,7 @@ namespace Svg
         /// <summary>
         /// Gets or sets a <see cref="SvgPathSegmentList"/> of path data.
         /// </summary>
-        [SvgAttribute("d")]
+        [SvgAttribute("d", true)]
         public SvgPathSegmentList PathData
         {
         	get { return this.Attributes.GetAttribute<SvgPathSegmentList>("d"); }
@@ -37,7 +37,7 @@ namespace Svg
         /// <summary>
         /// Gets or sets the length of the path.
         /// </summary>
-        [SvgAttribute("pathLength")]
+        [SvgAttribute("pathLength", true)]
         public float PathLength
         {
             get { return this.Attributes.GetAttribute<float>("pathLength"); }
@@ -48,7 +48,7 @@ namespace Svg
         /// <summary>
         /// Gets or sets the marker (end cap) of the path.
         /// </summary>
-		[SvgAttribute("marker-end")]
+        [SvgAttribute("marker-end", true)]
 		public Uri MarkerEnd
         {
 			get { return this.Attributes.GetAttribute<Uri>("marker-end"); }
@@ -59,7 +59,7 @@ namespace Svg
 		/// <summary>
 		/// Gets or sets the marker (start cap) of the path.
 		/// </summary>
-		[SvgAttribute("marker-mid")]
+        [SvgAttribute("marker-mid", true)]
 		public Uri MarkerMid
 		{
 			get { return this.Attributes.GetAttribute<Uri>("marker-mid"); }
@@ -70,7 +70,7 @@ namespace Svg
 		/// <summary>
 		/// Gets or sets the marker (start cap) of the path.
 		/// </summary>
-		[SvgAttribute("marker-start")]
+        [SvgAttribute("marker-start", true)]
 		public Uri MarkerStart
 		{
 			get { return this.Attributes.GetAttribute<Uri>("marker-start"); }

Source/SvgAttributeAttribute.cs

@@ -26,6 +26,7 @@ namespace Svg
 																				new KeyValuePair<string, string>(XLinkPrefix, XLinkNamespace),
 																				new KeyValuePair<string, string>("xml", XmlNamespace)
 		                                                                    };
+        private bool _inAttrDictionary;
         private string _name;
         private string _namespace;
 
@@ -80,6 +81,11 @@ namespace Svg
             get { return this._namespace; }
         }
 
+        public bool InAttributeDictionary
+        {
+            get { return this._inAttrDictionary; }
+        }
+
         /// <summary>
         /// Initializes a new instance of the <see cref="SvgAttributeAttribute"/> class.
         /// </summary>
@@ -98,6 +104,13 @@ namespace Svg
             this._namespace = SvgNamespace;
         }
 
+        internal SvgAttributeAttribute(string name, bool inAttrDictionary)
+        {
+            this._name = name;
+            this._namespace = SvgNamespace;
+            this._inAttrDictionary = inAttrDictionary;
+        }
+
         /// <summary>
         /// Initializes a new instance of the <see cref="SvgAttributeAttribute"/> class with the specified SVG attribute name and namespace.
         /// </summary>

Source/SvgDefinitionDefaults.cs

@@ -15,6 +15,8 @@ namespace Svg
 
         static SvgDefaults()
         {
+            _defaults["d"] = "";
+
             _defaults["viewBox"] = "0, 0, 0, 0";
 
             _defaults["visibility"] = "visible";

Source/SvgElement.cs

@@ -559,13 +559,13 @@ namespace Svg
                 writer.WriteEndElement();
             }
         }
-
         protected virtual void WriteAttributes(XmlTextWriter writer)
         {
             //properties
             foreach (var attr in _svgPropertyAttributes)
             {
-                if (attr.Property.Converter.CanConvertTo(typeof(string)))
+                if (attr.Property.Converter.CanConvertTo(typeof(string)) && 
+                    (!attr.Attribute.InAttributeDictionary || _attributes.ContainsKey(attr.Attribute.Name)))
                 {
                     object propertyValue = attr.Property.GetValue(this);
 

Source/SvgElementStyle.cs

@@ -36,7 +36,7 @@ namespace Svg
         /// <summary>
         /// Gets or sets the fill <see cref="SvgPaintServer"/> of this element.
         /// </summary>
-        [SvgAttribute("fill")]
+        [SvgAttribute("fill", true)]
         public virtual SvgPaintServer Fill
         {
             get { return (this.Attributes["fill"] == null) ? SvgColourServer.NotSet : (SvgPaintServer)this.Attributes["fill"]; }
@@ -46,14 +46,14 @@ namespace Svg
         /// <summary>
         /// Gets or sets the <see cref="SvgPaintServer"/> to be used when rendering a stroke around this element.
         /// </summary>
-        [SvgAttribute("stroke")]
+        [SvgAttribute("stroke", true)]
         public virtual SvgPaintServer Stroke
         {
             get { return (this.Attributes["stroke"] == null) ? null : (SvgPaintServer)this.Attributes["stroke"]; }
             set { this.Attributes["stroke"] = value; }
         }
 
-        [SvgAttribute("fill-rule")]
+        [SvgAttribute("fill-rule", true)]
         public virtual SvgFillRule FillRule
         {
             get { return (this.Attributes["fill-rule"] == null) ? SvgFillRule.NonZero : (SvgFillRule)this.Attributes["fill-rule"]; }
@@ -63,7 +63,7 @@ namespace Svg
         /// <summary>
         /// Gets or sets the opacity of this element's <see cref="Fill"/>.
         /// </summary>
-        [SvgAttribute("fill-opacity")]
+        [SvgAttribute("fill-opacity", true)]
         public virtual float FillOpacity
         {
             get { return (this.Attributes["fill-opacity"] == null) ? this.Opacity : (float)this.Attributes["fill-opacity"]; }
@@ -73,42 +73,42 @@ namespace Svg
         /// <summary>
         /// Gets or sets the width of the stroke (if the <see cref="Stroke"/> property has a valid value specified.
         /// </summary>
-        [SvgAttribute("stroke-width")]
+        [SvgAttribute("stroke-width", true)]
         public virtual SvgUnit StrokeWidth
         {
             get { return (this.Attributes["stroke-width"] == null) ? new SvgUnit(1.0f) : (SvgUnit)this.Attributes["stroke-width"]; }
             set { this.Attributes["stroke-width"] = value; }
         }
 
-        [SvgAttribute("stroke-linecap")]
+        [SvgAttribute("stroke-linecap", true)]
         public virtual SvgStrokeLineCap StrokeLineCap
         {
             get { return (this.Attributes["stroke-linecap"] == null) ? SvgStrokeLineCap.Butt : (SvgStrokeLineCap)this.Attributes["stroke-linecap"]; }
             set { this.Attributes["stroke-linecap"] = value; }
         }
 
-        [SvgAttribute("stroke-linejoin")]
+        [SvgAttribute("stroke-linejoin", true)]
         public virtual SvgStrokeLineJoin StrokeLineJoin
         {
             get { return (this.Attributes["stroke-linejoin"] == null) ? SvgStrokeLineJoin.Miter : (SvgStrokeLineJoin)this.Attributes["stroke-linejoin"]; }
             set { this.Attributes["stroke-linejoin"] = value; }
         }
 
-        [SvgAttribute("stroke-miterlimit")]
+        [SvgAttribute("stroke-miterlimit", true)]
         public virtual float StrokeMiterLimit
         {
             get { return (this.Attributes["stroke-miterlimit"] == null) ? 4f : (float)this.Attributes["stroke-miterlimit"]; }
             set { this.Attributes["stroke-miterlimit"] = value; }
         }
 
-        [SvgAttribute("stroke-dasharray")]
+        [SvgAttribute("stroke-dasharray", true)]
         public virtual SvgUnitCollection StrokeDashArray
         {
             get { return this.Attributes["stroke-dasharray"] as SvgUnitCollection; }
             set { this.Attributes["stroke-dasharray"] = value; }
         }
 
-        [SvgAttribute("stroke-dashoffset")]
+        [SvgAttribute("stroke-dashoffset", true)]
         public virtual SvgUnit StrokeDashOffset
         {
             get { return (this.Attributes["stroke-dashoffset"] == null) ? SvgUnit.Empty : (SvgUnit)this.Attributes["stroke-dashoffset"]; }
@@ -118,7 +118,7 @@ namespace Svg
         /// <summary>
         /// Gets or sets the opacity of the stroke, if the <see cref="Stroke"/> property has been specified. 1.0 is fully opaque; 0.0 is transparent.
         /// </summary>
-        [SvgAttribute("stroke-opacity")]
+        [SvgAttribute("stroke-opacity", true)]
         public virtual float StrokeOpacity
         {
             get { return (this.Attributes["stroke-opacity"] == null) ? this.Opacity : (float)this.Attributes["stroke-opacity"]; }
@@ -129,7 +129,7 @@ namespace Svg
         /// Gets or sets the colour of the gradient stop.
         /// </summary>
         /// <remarks>Apparently this can be set on non-sensical elements.  Don't ask; just check the tests.</remarks>
-        [SvgAttribute("stop-color")]
+        [SvgAttribute("stop-color", true)]
         [TypeConverter(typeof(SvgPaintServerFactory))]
         public SvgPaintServer StopColor
         {
@@ -140,7 +140,7 @@ namespace Svg
         /// <summary>
         /// Gets or sets the opacity of the element. 1.0 is fully opaque; 0.0 is transparent.
         /// </summary>
-        [SvgAttribute("opacity")]
+        [SvgAttribute("opacity", true)]
         public virtual float Opacity
         {
             get { return (this.Attributes["opacity"] == null) ? 1.0f : (float)this.Attributes["opacity"]; }
@@ -150,7 +150,7 @@ namespace Svg
         /// <summary>
         /// Indicates which font family is to be used to render the text.
         /// </summary>
-        [SvgAttribute("font-family")]
+        [SvgAttribute("font-family", true)]
         public virtual string FontFamily
         {
             get { return this.Attributes["font-family"] as string; }
@@ -160,7 +160,7 @@ namespace Svg
         /// <summary>
         /// Refers to the size of the font from baseline to baseline when multiple lines of text are set solid in a multiline layout environment.
         /// </summary>
-        [SvgAttribute("font-size")]
+        [SvgAttribute("font-size", true)]
         public virtual SvgUnit FontSize
         {
             get { return (this.Attributes["font-size"] == null) ? SvgUnit.Empty : (SvgUnit)this.Attributes["font-size"]; }
@@ -170,7 +170,7 @@ namespace Svg
         /// <summary>
         /// Refers to the style of the font.
         /// </summary>
-        [SvgAttribute("font-style")]
+        [SvgAttribute("font-style", true)]
         public virtual SvgFontStyle FontStyle
         {
             get { return (this.Attributes["font-style"] == null) ? SvgFontStyle.inherit : (SvgFontStyle)this.Attributes["font-style"]; }
@@ -180,7 +180,7 @@ namespace Svg
         /// <summary>
         /// Refers to the varient of the font.
         /// </summary>
-        [SvgAttribute("font-variant")]
+        [SvgAttribute("font-variant", true)]
         public virtual SvgFontVariant FontVariant
         {
             get { return (this.Attributes["font-variant"] == null) ? SvgFontVariant.inherit : (SvgFontVariant)this.Attributes["font-variant"]; }
@@ -190,7 +190,7 @@ namespace Svg
         /// <summary>
         /// Refers to the boldness of the font.
         /// </summary>
-        [SvgAttribute("text-decoration")]
+        [SvgAttribute("text-decoration", true)]
         public virtual SvgTextDecoration TextDecoration
         {
             get { return (this.Attributes["text-decoration"] == null) ? SvgTextDecoration.inherit : (SvgTextDecoration)this.Attributes["text-decoration"]; }
@@ -200,7 +200,7 @@ namespace Svg
         /// <summary>
         /// Refers to the boldness of the font.
         /// </summary>
-        [SvgAttribute("font-weight")]
+        [SvgAttribute("font-weight", true)]
         public virtual SvgFontWeight FontWeight
         {
             get { return (this.Attributes["font-weight"] == null) ? SvgFontWeight.inherit : (SvgFontWeight)this.Attributes["font-weight"]; }
@@ -220,7 +220,7 @@ namespace Svg
         /// <summary>
         /// Set all font information.
         /// </summary>
-        [SvgAttribute("font")]
+        [SvgAttribute("font", true)]
         public virtual string Font
         {
             get { return (this.Attributes["font"] == null ? "" : this.Attributes["font"] as string); }

Source/Text/SvgGlyph.cs

@@ -15,44 +15,44 @@ namespace Svg
         /// <summary>
         /// Gets or sets a <see cref="SvgPathSegmentList"/> of path data.
         /// </summary>
-        [SvgAttribute("d")]
+        [SvgAttribute("d", true)]
         public SvgPathSegmentList PathData
         {
             get { return this.Attributes.GetAttribute<SvgPathSegmentList>("d"); }
             set { this.Attributes["d"] = value; }
         }
 
-        [SvgAttribute("glyph-name")]
+        [SvgAttribute("glyph-name", true)]
         public virtual string GlyphName
         {
             get { return this.Attributes["glyph-name"] as string; }
             set { this.Attributes["glyph-name"] = value; }
         }
-        [SvgAttribute("horiz-adv-x")]
+        [SvgAttribute("horiz-adv-x", true)]
         public float HorizAdvX
         {
             get { return (this.Attributes["horiz-adv-x"] == null ? this.Parents.OfType<SvgFont>().First().HorizAdvX : (float)this.Attributes["horiz-adv-x"]); }
             set { this.Attributes["horiz-adv-x"] = value; }
         }
-        [SvgAttribute("unicode")]
+        [SvgAttribute("unicode", true)]
         public string Unicode
         {
             get { return this.Attributes["unicode"] as string; }
             set { this.Attributes["unicode"] = value; }
         }
-        [SvgAttribute("vert-adv-y")]
+        [SvgAttribute("vert-adv-y", true)]
         public float VertAdvY
         {
             get { return (this.Attributes["vert-adv-y"] == null ? this.Parents.OfType<SvgFont>().First().VertAdvY : (float)this.Attributes["vert-adv-y"]); }
             set { this.Attributes["vert-adv-y"] = value; }
         }
-        [SvgAttribute("vert-origin-x")]
+        [SvgAttribute("vert-origin-x", true)]
         public float VertOriginX
         {
             get { return (this.Attributes["vert-origin-x"] == null ? this.Parents.OfType<SvgFont>().First().VertOriginX : (float)this.Attributes["vert-origin-x"]); }
             set { this.Attributes["vert-origin-x"] = value; }
         }
-        [SvgAttribute("vert-origin-y")]
+        [SvgAttribute("vert-origin-y", true)]
         public float VertOriginY
         {
             get { return (this.Attributes["vert-origin-y"] == null ? this.Parents.OfType<SvgFont>().First().VertOriginY : (float)this.Attributes["vert-origin-y"]); }

Source/Transforms/SvgSkew.cs

@@ -27,7 +27,14 @@ namespace Svg.Transforms
 
         public override string WriteToString()
         {
-            return string.Format(CultureInfo.InvariantCulture, "skew({0}, {1})", this.AngleX, this.AngleY);
+            if (this.AngleY == 0)
+            {
+                return string.Format(CultureInfo.InvariantCulture, "skewX({0})", this.AngleX);
+            }
+            else
+            {
+                return string.Format(CultureInfo.InvariantCulture, "skewY({0})", this.AngleY);
+            }
         }
 
         public SvgSkew(float x, float y)

Tests/SvgW3CTestRunner/View.cs

@@ -73,7 +73,12 @@ namespace SvgW3CTestRunner
                 {
                     doc.Write(memStream);
                     memStream.Position = 0;  
+                    var reader = new StreamReader(memStream);
+                    System.IO.File.WriteAllText(@"C:\test.xml", reader.ReadToEnd());
+                    memStream.Position = 0;
+                    var baseUri = doc.BaseUri;
                     doc = SvgDocument.Open<SvgDocument>(memStream);
+                    doc.BaseUri = baseUri;
                     
                     if (fileName.StartsWith("__"))
                     {