Font rendering update

lib/WellspringCS

@@ -1 +1 @@
-Subproject commit 38a0d66e78f592dad4f6e0030aa1c7aceafc6b04
+Subproject commit 8852da6765c035e8c60a1987a644979bc617cdc3

src/Graphics/Font/Enums.cs

@@ -0,0 +1,17 @@
+namespace MoonWorks.Graphics.Font
+{
+    public enum HorizontalAlignment
+    {
+        Left,
+        Center,
+        Right
+    }
+
+    public enum VerticalAlignment
+    {
+        Baseline,
+        Top,
+        Middle,
+        Bottom
+    }
+}

src/Graphics/Font/Font.cs

@@ -0,0 +1,44 @@
+using System;
+using System.IO;
+using WellspringCS;
+
+namespace MoonWorks.Graphics.Font
+{
+    public class Font : IDisposable
+    {
+		public IntPtr Handle { get; }
+
+		private bool IsDisposed;
+
+        public unsafe Font(string path)
+        {
+            var bytes = File.ReadAllBytes(path);
+			fixed (byte* pByte = &bytes[0])
+			{
+				Handle = Wellspring.Wellspring_CreateFont((IntPtr) pByte, (uint) bytes.Length);
+			}
+        }
+
+		protected virtual void Dispose(bool disposing)
+		{
+			if (!IsDisposed)
+			{
+				Wellspring.Wellspring_DestroyFont(Handle);
+				IsDisposed = true;
+			}
+		}
+
+		~Font()
+		{
+		    // Do not change this code. Put cleanup code in 'Dispose(bool disposing)' method
+		    Dispose(disposing: false);
+		}
+
+		public void Dispose()
+		{
+			// Do not change this code. Put cleanup code in 'Dispose(bool disposing)' method
+			Dispose(disposing: true);
+			GC.SuppressFinalize(this);
+		}
+	}
+}

src/Graphics/Font/Packer.cs

@@ -10,16 +10,14 @@ namespace MoonWorks.Graphics.Font
 		public IntPtr Handle { get; }
 		public Texture Texture { get; }
 
+		public Font Font { get; }
+
 		private bool IsDisposed;
 
-		public unsafe Packer(GraphicsDevice graphicsDevice, string path, uint textureWidth, uint textureHeight, uint padding = 1)
+		public unsafe Packer(GraphicsDevice graphicsDevice, Font font, float fontSize, uint textureWidth, uint textureHeight, uint padding = 1)
 		{
-			var bytes = File.ReadAllBytes(path);
-			fixed (byte* pByte = &bytes[0])
-			{
-				Handle = Wellspring.Wellspring_CreatePacker((IntPtr) pByte, (uint) bytes.Length, textureWidth, textureHeight, 0, padding);
-			}
-
+			Font = font;
+			Handle = Wellspring.Wellspring_CreatePacker(Font.Handle, fontSize, textureWidth, textureHeight, 0, padding);
 			Texture = Texture.CreateTexture2D(graphicsDevice, textureWidth, textureHeight, TextureFormat.R8, TextureUsageFlags.Sampler);
 		}
 

src/Graphics/Font/Structs.cs

@@ -6,7 +6,6 @@ namespace MoonWorks.Graphics.Font
 	[StructLayout(LayoutKind.Sequential)]
 	public struct FontRange
 	{
-		public uint FontSize;
 		public uint FirstCodepoint;
 		public uint NumChars;
 		public byte OversampleH;

src/Graphics/Font/TextBatch.cs

@@ -26,8 +26,15 @@ namespace MoonWorks.Graphics.Font
 			PrimitiveCount = 0;
 		}
 
-		public unsafe void Draw(float x, float y, float depth, Color color, string text)
-		{
+		public unsafe void Draw(
+			string text,
+			float x,
+			float y,
+			float depth,
+			Color color,
+			HorizontalAlignment horizontalAlignment = HorizontalAlignment.Left,
+			VerticalAlignment verticalAlignment = VerticalAlignment.Baseline
+		) {
 			fixed (char* chars = text)
 			{
 				var byteCount = System.Text.Encoding.UTF8.GetByteCount(text);
@@ -40,6 +47,8 @@ namespace MoonWorks.Graphics.Font
 					y,
 					depth,
 					new Wellspring.Color { R = color.R, G = color.G, B = color.B, A = color.A },
+					(Wellspring.HorizontalAlignment) horizontalAlignment,
+					(Wellspring.VerticalAlignment) verticalAlignment,
 					(IntPtr) bytes,
 					(uint) byteCount
 				);