first commit

Packages/com.singularitygroup.hotreload/Editor/Window/GUI/EditorTextures.cs

@@ -0,0 +1,116 @@
+using UnityEngine;
+
+namespace SingularityGroup.HotReload.Editor {
+    /// <summary>
+    /// Create a new texture only once. Safe access to generated textures.
+    /// </summary>
+    /// <remarks>
+    /// If </remarks>
+    internal static class EditorTextures {
+        private static Texture2D black;
+        private static Texture2D white;
+        private static Texture2D lightGray225;
+        private static Texture2D lightGray235;
+        private static Texture2D darkGray17;
+        private static Texture2D darkGray30;
+
+        // Texture2D.blackTexture doesn't render properly in Editor GUI.
+        public static Texture2D Black {
+            get {
+                if (!black) {
+                    black = new Texture2D(2, 2, TextureFormat.RGBA32, false);
+                    
+                    var pixels = black.GetPixels32();
+                    for (var i = 0; i < pixels.Length; i++) {
+                        pixels[i] = new Color32(0, 0, 0, byte.MaxValue);
+                    }
+                    black.SetPixels32(pixels);
+                    black.Apply();
+                }
+                return black;
+            }
+        }
+        
+        // Texture2D.whiteTexture might not render properly in Editor GUI.
+        public static Texture2D White {
+            get {
+                
+                if (!white) {
+                    white = new Texture2D(2, 2, TextureFormat.RGBA32, false);
+                    
+                    var pixels = white.GetPixels32();
+                    for (var i = 0; i < pixels.Length; i++) {
+                        pixels[i] = new Color32(byte.MaxValue, byte.MaxValue, byte.MaxValue, byte.MaxValue);
+                    }
+                    white.SetPixels32(pixels);
+                    white.Apply();
+                }
+                return white;
+            }
+        }
+
+        public static Texture2D DarkGray17 {
+            get {
+                if (!darkGray17) {
+                    darkGray17 = new Texture2D(2, 2, TextureFormat.RGBA32, false);
+                    
+                    var pixels = darkGray17.GetPixels32();
+                    for (var i = 0; i < pixels.Length; i++) {
+                        pixels[i] = new Color32(17, 17, 17, byte.MaxValue);
+                    }
+                    darkGray17.SetPixels32(pixels);
+                    darkGray17.Apply();
+                }
+                return darkGray17;
+            }
+        }
+        
+        public static Texture2D DarkGray40 {
+            get {
+                if (!darkGray30) {
+                    darkGray30 = new Texture2D(2, 2, TextureFormat.RGBA32, false);
+                    
+                    var pixels = darkGray30.GetPixels32();
+                    for (var i = 0; i < pixels.Length; i++) {
+                        pixels[i] = new Color32(40, 40, 40, byte.MaxValue);
+                    }
+                    darkGray30.SetPixels32(pixels);
+                    darkGray30.Apply();
+                }
+                return darkGray30;
+            }
+        }
+
+        public static Texture2D LightGray238 {
+            get {
+                if (!lightGray235) {
+                    lightGray235 = new Texture2D(2, 2, TextureFormat.RGBA32, false);
+                    
+                    var pixels = lightGray235.GetPixels32();
+                    for (var i = 0; i < pixels.Length; i++) {
+                        pixels[i] = new Color32(238, 238, 238, byte.MaxValue);
+                    }
+                    lightGray235.SetPixels32(pixels);
+                    lightGray235.Apply();
+                }
+                return lightGray235;
+            }
+        }
+
+        public static Texture2D LightGray225 {
+            get {
+                if (!lightGray225) {
+                    lightGray225 = new Texture2D(2, 2, TextureFormat.RGBA32, false);
+
+                    var pixels = lightGray225.GetPixels32();
+                    for (var i = 0; i < pixels.Length; i++) {
+                        pixels[i] = new Color32(225, 225, 225, byte.MaxValue);
+                    }
+                    lightGray225.SetPixels32(pixels);
+                    lightGray225.Apply();
+                }
+                return lightGray225;
+            }
+        }
+    }
+}