- Made Deepcopy change to all elements to allow for duplicating part of the Svg document tree

- Changes to get texts displaying bold / normal weight
- Changes to get textspans work correctly
- Made (semi-hardcoded) document metadata section - allow reading and regurgitating metdata tag from an original source document
- Included image
- Modified paths to allow for scientific notation
- Included ability to have markers for path ends (arrow ends etc)

Source/Basic Shapes/SvgCircle.cs

@@ -139,5 +139,20 @@ namespace Svg
         {
             
         }
+
+
+		public override SvgElement DeepCopy()
+		{
+			return DeepCopy<SvgCircle>();
+		}
+
+		public override SvgElement DeepCopy<T>()
+		{
+			var newObj = base.DeepCopy<T>() as SvgCircle;
+			newObj.CenterX = this.CenterX;
+			newObj.CenterY = this.CenterY;
+			newObj.Radius = this.Radius;
+			return newObj;
+		}
     }
 }
\ No newline at end of file

Source/Basic Shapes/SvgEllipse.cs

@@ -115,5 +115,22 @@ namespace Svg
         public SvgEllipse()
         {
         }
+
+
+
+		public override SvgElement DeepCopy()
+		{
+			return DeepCopy<SvgEllipse>();
+		}
+
+		public override SvgElement DeepCopy<T>()
+		{
+			var newObj = base.DeepCopy<T>() as SvgEllipse;
+			newObj.CenterX = this.CenterX;
+			newObj.CenterY = this.CenterY;
+			newObj.RadiusX = this.RadiusX;
+			newObj.RadiusY = this.RadiusY;
+			return newObj;
+		}
     }
 }
\ No newline at end of file

Source/Basic Shapes/SvgImage.cs

+using System;
+using System.Drawing;
+using System.Drawing.Drawing2D;
+using Svg.Transforms;
+
+namespace Svg
+{
+    /// <summary>
+    /// Represents and SVG image
+    /// </summary>
+    [SvgElement("image")]
+    public class SvgImage : SvgVisualElement
+    {
+        /// <summary>
+		/// Initializes a new instance of the <see cref="SvgImage"/> class.
+        /// </summary>
+		public SvgImage()
+        {
+            Width = new SvgUnit(0.0f);
+            Height = new SvgUnit(0.0f);
+        }
+
+        /// <summary>
+        /// Gets an <see cref="SvgPoint"/> representing the top left point of the rectangle.
+        /// </summary>
+        public SvgPoint Location
+        {
+            get { return new SvgPoint(X, Y); }
+        }
+
+		[SvgAttribute("x")]
+		public virtual SvgUnit X
+		{
+			get { return this.Attributes.GetAttribute<SvgUnit>("x"); }
+			set { this.Attributes["x"] = value; }
+		}
+
+		[SvgAttribute("y")]
+		public virtual SvgUnit Y
+		{
+			get { return this.Attributes.GetAttribute<SvgUnit>("y"); }
+			set { this.Attributes["y"] = value; }
+		}
+
+
+		[SvgAttribute("width")]
+		public virtual SvgUnit Width
+		{
+			get { return this.Attributes.GetAttribute<SvgUnit>("width"); }
+			set { this.Attributes["width"] = value; }
+		}
+
+		[SvgAttribute("height")]
+		public virtual SvgUnit Height
+		{
+			get { return this.Attributes.GetAttribute<SvgUnit>("height"); }
+			set { this.Attributes["height"] = value; }
+		}
+
+		[SvgAttribute("href", SvgAttributeAttribute.XLinkNamespace)]
+		public virtual Uri Href
+		{
+			get { return this.Attributes.GetAttribute<Uri>("href"); }
+			set { this.Attributes["href"] = value; }
+		}
+
+
+
+        /// <summary>
+        /// Gets the bounds of the element.
+        /// </summary>
+        /// <value>The bounds.</value>
+        public override RectangleF Bounds
+        {
+			get { return new RectangleF(this.Location.ToDeviceValue(), new SizeF(this.Width, this.Height)); }
+        }
+
+        /// <summary>
+        /// Gets the <see cref="GraphicsPath"/> for this element.
+        /// </summary>
+        public override GraphicsPath Path
+        {
+            get
+            {
+				return null;
+            }
+        }
+
+        /// <summary>
+        /// Renders the <see cref="SvgElement"/> and contents to the specified <see cref="Graphics"/> object.
+        /// </summary>
+        protected override void Render(SvgRenderer renderer)
+        {
+            if (Width.Value > 0.0f && Height.Value > 0.0f)
+            {
+				//TODO:
+                //base.Render(renderer);
+            }
+        }
+
+
+		public override SvgElement DeepCopy()
+		{
+			return DeepCopy<SvgImage>();
+		}
+
+		public override SvgElement DeepCopy<T>()
+		{
+ 			var newObj = base.DeepCopy<T>() as SvgImage;
+			newObj.Height = this.Height;
+			newObj.Width = this.Width;
+			newObj.X = this.X;
+			newObj.Y = this.Y;
+			newObj.Href = this.Href;
+			return newObj;
+		}
+    }
+}
\ No newline at end of file

Source/Basic Shapes/SvgLine.cs

@@ -81,5 +81,24 @@ namespace Svg
         {
             get { return this.Path.GetBounds(); }
         }
+
+		public override SvgElement DeepCopy()
+		{
+			return DeepCopy<SvgLine>();
+		}
+
+		public override SvgElement DeepCopy<T>()
+		{
+			var newObj = base.DeepCopy<T>() as SvgLine;
+			newObj.StartX = this.StartX;
+			newObj.EndX = this.EndX;
+			newObj.StartY = this.StartY;
+			newObj.EndY = this.EndY;
+			if (this.Fill != null)
+				newObj.Fill = this.Fill.DeepCopy() as SvgPaintServer;
+
+			return newObj;
+		}
+
     }
 }

Source/Basic Shapes/SvgPolygon.cs

@@ -74,5 +74,20 @@ namespace Svg
         {
             get { return this.Path.GetBounds(); }
         }
+
+
+		public override SvgElement DeepCopy()
+		{
+			return DeepCopy<SvgPolygon>();
+		}
+
+		public override SvgElement DeepCopy<T>()
+		{
+			var newObj = base.DeepCopy<T>() as SvgPolygon;
+			newObj.Points = new SvgUnitCollection();
+			foreach (var pt in this.Points)
+				newObj.Points.Add(pt);
+			return newObj;
+		}
     }
 }
\ No newline at end of file

Source/Basic Shapes/SvgRectangle.cs

 using System;
 using System.Drawing;
 using System.Drawing.Drawing2D;
+using Svg.Transforms;
 
 namespace Svg
 {
@@ -250,5 +251,23 @@ namespace Svg
                 base.Render(renderer);
             }
         }
+
+
+		public override SvgElement DeepCopy()
+		{
+			return DeepCopy<SvgRectangle>();
+		}
+
+		public override SvgElement DeepCopy<T>()
+		{
+ 			var newObj = base.DeepCopy<T>() as SvgRectangle;
+			newObj.CornerRadiusX = this.CornerRadiusX;
+			newObj.CornerRadiusY = this.CornerRadiusY;
+			newObj.Height = this.Height;
+			newObj.Width = this.Width;
+			newObj.X = this.X;
+			newObj.Y = this.Y;
+			return newObj;
+		}
     }
 }
\ No newline at end of file

Source/Basic Shapes/SvgVisualElement.cs

@@ -61,6 +61,18 @@ namespace Svg
             set { this.Attributes["clip-rule"] = value; }
         }
 
+
+		/// <summary>
+		/// Gets the associated <see cref="SvgClipPath"/> if one has been specified.
+		/// </summary>
+		[SvgAttribute("filter")]
+		public virtual Uri Filter
+		{
+			get { return this.Attributes.GetAttribute<Uri>("filter"); }
+			set { this.Attributes["filter"] = value; }
+		}
+
+
         /// <summary>
         /// Gets or sets a value to determine if anti-aliasing should occur when the element is being rendered.
         /// </summary>
@@ -199,5 +211,32 @@ namespace Svg
         {
             this.ResetClip(renderer);
         }
+
+		public override SvgElement DeepCopy<T>()
+		{
+			var newObj = base.DeepCopy<T>() as SvgVisualElement;
+			newObj.ClipPath = this.ClipPath;
+			newObj.ClipRule = this.ClipRule;
+			newObj.Filter = this.Filter;
+
+			newObj.Visible = this.Visible;
+			if (this.Fill != null)
+				newObj.Fill = this.Fill;
+			if (this.Stroke != null)
+				newObj.Stroke = this.Stroke;
+			newObj.FillRule = this.FillRule;
+			newObj.FillOpacity = this.FillOpacity;
+			newObj.StrokeWidth = this.StrokeWidth;
+			newObj.StrokeLineCap = this.StrokeLineCap;
+			newObj.StrokeLineJoin = this.StrokeLineJoin;
+			newObj.StrokeMiterLimit = this.StrokeMiterLimit;
+			newObj.StrokeDashArray = this.StrokeDashArray;
+			newObj.StrokeDashOffset = this.StrokeDashOffset;
+			newObj.StrokeOpacity = this.StrokeOpacity;
+			newObj.Opacity = this.Opacity;
+
+			return newObj;
+		}
+
     }
 }
\ No newline at end of file

Source/Clipping and Masking/SvgClipPath.cs

@@ -115,5 +115,18 @@ namespace Svg
         {
             // Do nothing
         }
+
+
+		public override SvgElement DeepCopy()
+		{
+			return DeepCopy<SvgClipPath>();
+		}
+
+		public override SvgElement DeepCopy<T>()
+		{
+			var newObj = base.DeepCopy<T>() as SvgClipPath;
+			newObj.ClipPathUnits = this.ClipPathUnits;
+			return newObj;
+		}
     }
 }

Source/Clipping and Masking/SvgMask.cs

@@ -6,5 +6,12 @@ namespace Svg
 {
     public class SvgMask : SvgElement
     {
+
+
+		public override SvgElement DeepCopy()
+		{
+			return DeepCopy<SvgMask>();
+		}
+
     }
 }
\ No newline at end of file

Source/DataTypes/ISvgViewPort.cs

@@ -15,5 +15,6 @@ namespace Svg
         /// </summary>
         SvgViewBox ViewBox { get; set; }
         SvgAspectRatio AspectRatio { get; set; }
+		SvgOverflow Overflow { get; set; }
     }
 }

Source/DataTypes/SvgColourInterpolation.cs

+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace Svg.DataTypes
+{
+	public enum SvgColourInterpolation
+	{
+		auto,
+		sRGB,
+		linearRGB,
+		inherit
+	}
+}

Source/DataTypes/SvgFontWeight.cs

+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Text;
+
+namespace Svg.DataTypes
+{
+	public enum SvgFontWeight
+	{
+		normal,
+		bold
+	}
+
+	
+}

Source/DataTypes/SvgOrient.cs

+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.ComponentModel;
+using System.Web.UI.WebControls;
+using System.Globalization;
+
+namespace Svg
+{
+    /// <summary>
+    /// Represents an orientation in an Scalable Vector Graphics document.
+    /// </summary>
+    public class SvgOrient
+    {
+        private bool _isAuto = true;
+        private float _angle;
+  
+		public SvgOrient()
+		{
+			IsAuto = true;
+		}
+
+		public SvgOrient(float angle)
+		{
+			Angle = angle;
+		}
+
+        /// <summary>
+        /// Gets the value of the unit.
+        /// </summary>
+        public float Angle
+        {
+            get { return this._angle; }
+            set
+            {
+            	this._angle = value;
+            	this._isAuto = false;
+            }
+        }
+
+		
+        /// <summary>
+        /// Gets the value of the unit.
+        /// </summary>
+        public bool IsAuto
+        {
+            get { return this._isAuto; }
+            set { 
+				this._isAuto = value;
+            	this._angle = 0f;
+			}
+        }
+
+
+        /// <summary>
+        /// Indicates whether this instance and a specified object are equal.
+        /// </summary>
+        /// <param name="obj">Another object to compare to.</param>
+        /// <returns>
+        /// true if <paramref name="obj"/> and this instance are the same type and represent the same value; otherwise, false.
+        /// </returns>
+        public override bool Equals(object obj)
+        {
+            if (obj == null) return false;
+            if (!(obj.GetType() == typeof (SvgOrient))) return false;
+
+            var unit = (SvgOrient)obj;
+            return (unit.IsAuto == this.IsAuto && unit.Angle == this.Angle);
+        }
+
+        public override int GetHashCode()
+        {
+            return base.GetHashCode();
+        }
+
+        public override string ToString()
+        {
+            string type = string.Empty;
+
+			if (this.IsAuto)
+				return "auto";
+			else
+				return this.Angle.ToString();
+        }
+
+		///// <summary>
+		///// Performs an implicit conversion from <see cref="Svg.SvgUnit"/> to <see cref="System.Single"/>.
+		///// </summary>
+		///// <param name="value">The value.</param>
+		///// <returns>The result of the conversion.</returns>
+		//public static implicit operator float(SvgOrient value)
+		//{
+		//    return this.Angle;
+		//}
+
+        /// <summary>
+        /// Performs an implicit conversion from <see cref="System.Single"/> to <see cref="Svg.SvgOrient"/>.
+        /// </summary>
+        /// <param name="value">The value.</param>
+        /// <returns>The result of the conversion.</returns>
+        public static implicit operator SvgOrient(float value)
+        {
+            return new SvgOrient(value);
+        }
+
+    }
+
+}

Source/DataTypes/SvgOverflow.cs

+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace Svg
+{
+	public enum SvgOverflow
+	{
+		auto,
+		visible,
+		hidden,
+		scroll,
+		inherit
+	}
+}

Source/Document Structure/SvgDefinitionList.cs

@@ -25,5 +25,12 @@ namespace Svg
         {
             // Do nothing. Children should NOT be rendered.
         }
+
+
+		public override SvgElement DeepCopy()
+		{
+			return DeepCopy<SvgDefinitionList>();
+		}
+
     }
 }
\ No newline at end of file

Source/Document Structure/SvgDescription.cs

@@ -21,5 +21,19 @@ namespace Svg
         {
             return this.Text;
         }
+
+
+		public override SvgElement DeepCopy()
+		{
+			return DeepCopy<SvgDescription>();
+		}
+
+		public override SvgElement DeepCopy<T>()
+		{
+			var newObj = base.DeepCopy<T>() as SvgDescription;
+			newObj.Text = this.Text;
+			return newObj;
+		}
+
     }
 }
\ No newline at end of file

Source/Document Structure/SvgDocumentMetadata.cs

+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Xml;
+
+namespace Svg
+{
+    /// <summary>
+    /// Represents a list of re-usable SVG components.
+    /// </summary>
+    [SvgElement("metadata")]
+    public class SvgDocumentMetadata : SvgElement
+    {
+	//	private string _metadata; 
+
+
+        /// <summary>
+		/// Initializes a new instance of the <see cref="SvgDocumentMetadata"/> class.
+        /// </summary>
+		public SvgDocumentMetadata()
+        {
+        	Content = "";
+        }
+
+
+		//public string Metadata
+		//{
+		//    get { return _metadata; }
+		//    set { _metadata = value; }
+		//}
+
+
+        /// <summary>
+        /// Renders the <see cref="SvgElement"/> and contents to the specified <see cref="SvgRenderer"/> object.
+        /// </summary>
+        /// <param name="renderer">The <see cref="SvgRenderer"/> object to render to.</param>
+        protected override void Render(SvgRenderer renderer)
+        {
+            // Do nothing. Children should NOT be rendered.
+        }
+
+		protected override void WriteChildren(XmlTextWriter writer)
+		{
+			writer.WriteRaw(this.Content); //write out metadata as is
+		}
+
+
+		public override SvgElement DeepCopy()
+		{
+			return DeepCopy<SvgDocumentMetadata>();
+		}
+
+		public override void InitialiseFromXML(XmlTextReader reader, SvgDocument document)
+		{
+			base.InitialiseFromXML(reader, document);
+
+			//read in the metadata just as a string ready to be written straight back out again
+			Content = reader.ReadInnerXml();
+		}
+
+    }
+}
\ No newline at end of file

Source/Document Structure/SvgFragment.cs

@@ -46,6 +46,13 @@ namespace Svg
             set { this._height = value; }
         }
 
+		[SvgAttribute("overflow")]
+		public virtual SvgOverflow Overflow
+		{
+			get { return this.Attributes.GetAttribute<SvgOverflow>("overflow"); }
+			set { this.Attributes["overflow"] = value; }
+		}
+
         /// <summary>
         /// Gets or sets the viewport of the element.
         /// </summary>
@@ -123,5 +130,22 @@ namespace Svg
             this.ViewBox = SvgViewBox.Empty;
             this.AspectRatio = new SvgAspectRatio(SvgPreserveAspectRatio.None);
         }
+
+
+		public override SvgElement DeepCopy()
+		{
+			return DeepCopy<SvgFragment>();
+		}
+
+		public override SvgElement DeepCopy<T>()
+		{
+			var newObj = base.DeepCopy<T>() as SvgFragment;
+			newObj.Height = this.Height;
+			newObj.Width = this.Width;
+			newObj.Overflow = this.Overflow;
+			newObj.ViewBox = this.ViewBox;
+			newObj.AspectRatio = this.AspectRatio;
+			return newObj;
+		}
     }
 }
\ No newline at end of file

Source/Document Structure/SvgGroup.cs

@@ -4,6 +4,8 @@ using System.Xml;
 using System.Text;
 using System.Drawing;
 using System.Drawing.Drawing2D;
+using System.Linq;
+using Svg.Transforms;
 
 namespace Svg
 {
@@ -74,5 +76,19 @@ namespace Svg
             this.ResetClip(renderer);
             this.PopTransforms(renderer);
         }
+
+		
+		public override SvgElement DeepCopy()
+		{
+			return DeepCopy<SvgGroup>();
+		}
+
+		public override SvgElement DeepCopy<T>()
+		{
+			var newObj = base.DeepCopy<T>() as SvgGroup;
+			if (this.Fill != null)
+				newObj.Fill = this.Fill.DeepCopy() as SvgPaintServer;
+			return newObj;
+		}
     }
 }
\ No newline at end of file

Source/Document Structure/SvgUse.cs

@@ -90,5 +90,22 @@ namespace Svg
 
             this.PopTransforms(renderer);
         }
+
+
+		public override SvgElement DeepCopy()
+		{
+			return DeepCopy<SvgUse>();
+		}
+
+		public override SvgElement DeepCopy<T>()
+		{
+			var newObj = base.DeepCopy<T>() as SvgUse;
+			newObj.ReferencedElement = this.ReferencedElement;
+			newObj.X = this.X;
+			newObj.Y = this.Y;
+
+			return newObj;
+		}
+
     }
 }
\ No newline at end of file