Finished aspect ratio parser

Source/DataTypes/SvgAspectRatio.cs

@@ -22,6 +22,7 @@ namespace Svg
 		{
 			this.Align = align;
 			this.Slice = slice;
+			this.Defer = false;
 		}
 		
 		public SvgPreserveAspectRatio Align
@@ -35,7 +36,13 @@ namespace Svg
 			get;
 			set;
 		}
-		
+
+		public bool Defer
+		{
+			get;
+			set;
+		}
+
 		public override string ToString()
 		{
 			return TypeDescriptor.GetConverter(typeof(SvgPreserveAspectRatio)).ConvertToString(this.Align) + (Slice ? " slice" : "");
@@ -45,15 +52,15 @@ namespace Svg
 	
 	public enum SvgPreserveAspectRatio
 	{
-		XMidYMid, //default
+		xMidYMid, //default
 		none,
-		XMinYMin,
-		XMidYMin,
-		XMaxYMin,
-		XMinYMid,
-		XMaxYMid,
-		XMinYMax,
-		XMidYMax,
-		XMaxYMax
+		xMinYMin,
+		xMidYMin,
+		xMaxYMin,
+		xMinYMid,
+		xMaxYMid,
+		xMinYMax,
+		xMidYMax,
+		xMaxYMax
 	}
 }

Source/DataTypes/SvgAspectRatioConverter.cs

@@ -25,10 +25,43 @@ namespace Svg.DataTypes
 			}
 
 			SvgPreserveAspectRatio eAlign = SvgPreserveAspectRatio.none;
-			if (!Enum.TryParse<SvgPreserveAspectRatio>(value as string, out eAlign))
+			bool bDefer = false;
+			bool bSlice = false;
+
+			string[] sParts = (value as string).Split(new char[] {' '}, StringSplitOptions.RemoveEmptyEntries);
+			int nAlignIndex = 0;
+			if (sParts[0].Equals("defer"))
+			{
+				bDefer = true;
+				nAlignIndex++;
+				if(sParts.Length < 2)
+					throw new ArgumentOutOfRangeException("value is not a member of SvgPreserveAspectRatio");
+			}
+
+			if (!Enum.TryParse<SvgPreserveAspectRatio>(sParts[nAlignIndex], out eAlign))
+				throw new ArgumentOutOfRangeException("value is not a member of SvgPreserveAspectRatio");
+			nAlignIndex++;
+
+			if (sParts.Length > nAlignIndex)
+			{
+				switch (sParts[nAlignIndex])
+				{
+					case "meet":
+						break;
+					case "slice":
+						bSlice = true;
+						break;
+					default:
+						throw new ArgumentOutOfRangeException("value is not a member of SvgPreserveAspectRatio");
+				}
+			}
+			nAlignIndex++;
+			if(sParts.Length > nAlignIndex)
 				throw new ArgumentOutOfRangeException("value is not a member of SvgPreserveAspectRatio");
 
 			SvgAspectRatio pRet = new SvgAspectRatio(eAlign);
+			pRet.Slice = bSlice;
+			pRet.Defer = bDefer;
 			return (pRet);
 		}
 

Source/Document Structure/SvgFragment.cs

@@ -133,33 +133,33 @@ namespace Svg
 
 					switch (AspectRatio.Align)
 					{
-						case SvgPreserveAspectRatio.XMinYMin:
+						case SvgPreserveAspectRatio.xMinYMin:
 							break;
-						case SvgPreserveAspectRatio.XMidYMin:
+						case SvgPreserveAspectRatio.xMidYMin:
 							fMinX += (fMidX - fViewMidX) / fScaleX;
 							break;
-						case SvgPreserveAspectRatio.XMaxYMin:
+						case SvgPreserveAspectRatio.xMaxYMin:
 							fMinX += this.ViewBox.Width - this.Width.ToDeviceValue();
 							break;
-						case SvgPreserveAspectRatio.XMinYMid:
+						case SvgPreserveAspectRatio.xMinYMid:
 							fMinY += (fMidY - fViewMidY) / fScaleY;
 							break;
-						case SvgPreserveAspectRatio.XMidYMid:
+						case SvgPreserveAspectRatio.xMidYMid:
 							fMinX += (fMidX - fViewMidX) / fScaleX;
 							fMinY += (fMidY - fViewMidY) / fScaleY;
 							break;
-						case SvgPreserveAspectRatio.XMaxYMid:
+						case SvgPreserveAspectRatio.xMaxYMid:
 							fMinX += this.ViewBox.Width - this.Width.ToDeviceValue();
 							fMinY += (fMidY - fViewMidY) / fScaleY;
 							break;
-						case SvgPreserveAspectRatio.XMinYMax:
+						case SvgPreserveAspectRatio.xMinYMax:
 							fMinY += this.ViewBox.Height - this.Height.ToDeviceValue();
 							break;
-						case SvgPreserveAspectRatio.XMidYMax:
+						case SvgPreserveAspectRatio.xMidYMax:
 							fMinX += (fMidX - fViewMidX) / fScaleX;
 							fMinY += this.ViewBox.Height - this.Height.ToDeviceValue();
 							break;
-						case SvgPreserveAspectRatio.XMaxYMax:
+						case SvgPreserveAspectRatio.xMaxYMax:
 							fMinX += this.ViewBox.Width - this.Width.ToDeviceValue();
 							fMinY += this.ViewBox.Height - this.Height.ToDeviceValue();
 							break;
@@ -212,7 +212,7 @@ namespace Svg
             this.Height = new SvgUnit(SvgUnitType.Percentage, 100.0f);
             this.Width = new SvgUnit(SvgUnitType.Percentage, 100.0f);
             this.ViewBox = SvgViewBox.Empty;
-            this.AspectRatio = new SvgAspectRatio(SvgPreserveAspectRatio.XMidYMid);
+            this.AspectRatio = new SvgAspectRatio(SvgPreserveAspectRatio.xMidYMid);
         }