MVVM frame work done, under unit test

源代码/StgSharp/Graphics/PlainGeometryMesh.cs

@@ -3,7 +3,9 @@ using StgSharp.Math;
 
 using System;
 using System.Collections.Generic;
+using System.Diagnostics.CodeAnalysis;
 using System.Linq;
+using System.Runtime.InteropServices;
 using System.Text;
 
 namespace StgSharp.Graphics
@@ -11,11 +13,11 @@ namespace StgSharp.Graphics
     public class PlainGeometryMesh
     {
         private PlainGeometry _shape;
-        private Image _texture;
-        private vec4d[] textureCoord;
+        private TextureProvider _texture;
+        //private Image _texture;
 
         public PlainGeometryMesh(
-            PlainGeometry shape, Image texture, vec4d[] texCoord
+            PlainGeometry shape, Image texture, vec2d[] texCoord
             )
         {
             if (shape==null)
@@ -27,19 +29,25 @@ namespace StgSharp.Graphics
                 throw new ArgumentNullException(nameof(texCoord));
             }
 
-            _shape = shape;
-            _texture = texture;
             if (shape.VertexCount > texCoord.Length)
             {
                 throw new ArgumentException(paramName: nameof(texCoord), message: "Amount of texture coordination is too less");
             }
-            textureCoord = texCoord;
-            return;
+            _texture = new TextureProvider(texture,texCoord);
+        }
+
+        public PlainGeometryMesh([NotNull]PlainGeometry shape, [NotNull]TextureProvider texture)
+        {
+            if (shape.VertexCount > texture.TextureCoordinate.Length)
+            {
+                throw new ArgumentException(paramName: nameof(texture), message: "Amount of texture coordination is too less");
+            }
+            _shape = shape;
         }
 
         public PlainGeometryMesh Resize(PlainGeometry newShape)
         {
-            return new PlainGeometryMesh(newShape, _texture, textureCoord);
+            return new PlainGeometryMesh(newShape, _texture);
         }
 
         public ReadOnlySpan<int> MeshIndices => _shape.VertexIndices;
@@ -48,10 +56,10 @@ namespace StgSharp.Graphics
 
         public Image TextureImage 
         {
-            get => _texture;
-            internal set => _texture = value;
+            get => _texture.ProvideImage();
+            internal set => _texture.ReadImage( value);
         }
         
-        public vec4d[] TextureCoord => textureCoord;
+        public ReadOnlySpan<vec4d> TextureCoord => MemoryMarshal.Cast<vec2d,vec4d>( _texture.TextureCoordinate);
     }
 }