Convert CanvasRenderSource static fields/methods to instance members

Reorganize RenderCommandType enum into grouped categories

UI/GUI/Rendering/CanvasRenderSource.cs

@@ -10,25 +10,25 @@ namespace RemSox.UI.GUI.Rendering;
 
 public sealed class CanvasRenderSource : IRenderSource
 {
-    private static readonly Dictionary<int, Canvas> windowCanvases = [];
+    private readonly Dictionary<int, Canvas> windowCanvases = [];
-    private static readonly Dictionary<int, Point> windowPositions = [];
+    private readonly Dictionary<int, Point> windowPositions = [];
-    private static readonly Dictionary<int, int> windowZIndices = [];
+    private readonly Dictionary<int, int> windowZIndices = [];
 
     // Sorted list keeps windows in Z-order without re-sorting.
     // Key = (zIndex << 32 | windowId) so equal Z stays insertion-stable.
-    private static readonly SortedList<long, int> zOrderedWindows = [];
+    private readonly SortedList<long, int> zOrderedWindows = [];
 
     // Accumulated drawing primitives per window (in draw order).
-    private static readonly Dictionary<int, List<(int ElementId, RenderCommand Command)>> windowPrimitives = [];
+    private readonly Dictionary<int, List<(int ElementId, RenderCommand Command)>> windowPrimitives = [];
 
-    private static readonly HashSet<int> dirtyWindows = [];
+    private readonly HashSet<int> dirtyWindows = [];
-    private static bool isPositionDirty = true;
+    private bool isPositionDirty = true;
-    private static Point lastPointerPosition = new(-1, -1);
+    private Point lastPointerPosition = new(-1, -1);
 
-    private static Point cursorPosition;
+    private Point cursorPosition;
-    private static int screenWidth, screenHeight;
+    private int screenWidth, screenHeight;
 
-    private static readonly Lock renderLock = new();
+    private readonly Lock renderLock = new();
 
     public void Render(IEnumerable<RenderCommand> commands)
     {
@@ -156,7 +156,7 @@ public sealed class CanvasRenderSource : IRenderSource
 
     // --- Accumulated state management ---
 
-    private static void CreateOrUpdateWindow(RenderCommand cmd)
+    private void CreateOrUpdateWindow(RenderCommand cmd)
     {
         int id = cmd.WindowId;
         Size size = Get(cmd.Properties, "Size", new Size(160, 120));
@@ -187,7 +187,7 @@ public sealed class CanvasRenderSource : IRenderSource
         isPositionDirty = true;
     }
 
-    private static void RemoveWindow(int windowId)
+    private void RemoveWindow(int windowId)
     {
         _ = windowCanvases.Remove(windowId);
         _ = windowPositions.Remove(windowId);
@@ -202,7 +202,7 @@ public sealed class CanvasRenderSource : IRenderSource
         isPositionDirty = true;
     }
 
-    private static void UpsertPrimitive(RenderCommand cmd)
+    private void UpsertPrimitive(RenderCommand cmd)
     {
         if (!windowPrimitives.TryGetValue(cmd.WindowId, out List<(int ElementId, RenderCommand Command)>? list))
         {
@@ -223,7 +223,7 @@ public sealed class CanvasRenderSource : IRenderSource
         _ = dirtyWindows.Add(cmd.WindowId);
     }
 
-    private static void RemovePrimitives(int windowId, int baseElementId)
+    private void RemovePrimitives(int windowId, int baseElementId)
     {
         if (!windowPrimitives.TryGetValue(windowId, out List<(int ElementId, RenderCommand Command)>? list))
         {

UI/GUI/Rendering/RenderCommandType.cs

@@ -1,22 +1,33 @@
 namespace RemSox.UI.GUI.Rendering;
 
+/// <summary>
+/// Render command opcodes, grouped by category:
+///   0x01–0x0F  System/setup
+///   0x10–0x1F  Window lifecycle
+///   0x20–0x2F  Primitives lifecycle
+///   0x30–0x3F  Primitives draw
+///   0x40+      Future expansion
+/// </summary>
 public enum RenderCommandType : byte
 {
-    CreateWindow = 0x01,
+    // System / setup (0x01–0x0F)
-    DestroyWindow = 0x02,
+    ScreenInfo = 0x01,
-    MoveWindow = 0x03,
+    SetCursor = 0x02,
 
-    DrawFilledRect = 0x10,
+    // Window lifecycle (0x10–0x1F)
-    DrawRectBorder = 0x11,
+    CreateWindow = 0x10,
-    DrawFilledCircle = 0x12,
+    DestroyWindow = 0x11,
-    DrawCircle = 0x13,
+    MoveWindow = 0x12,
-    DrawText = 0x14,
-    DrawLine = 0x15,
-    DrawPoint = 0x16,
 
+    // Primitives lifecycle (0x20–0x2F)
     RemovePrimitives = 0x20,
 
-    SetCursor = 0x30,
+    // Primitives draw (0x30–0x3F)
-
+    DrawFilledRect = 0x30,
-    ScreenInfo = 0xF0,
+    DrawRectBorder = 0x31,
+    DrawFilledCircle = 0x32,
+    DrawCircle = 0x33,
+    DrawText = 0x34,
+    DrawLine = 0x35,
+    DrawPoint = 0x36,
 }