Adding some components.

src/dawn/display/Color.hpp

@@ -0,0 +1,89 @@
+// Copyright (c) 2022 Dominic Masters
+// 
+// This software is released under the MIT License.
+// https://opensource.org/licenses/MIT
+
+#pragma once
+#include "dawnlibs.hpp"
+
+namespace Dawn {
+  struct ColorU8 {
+    uint8_t r, g, b, a;
+  };
+
+  #pragma pack(push, 4)
+  struct Color final {
+    /**
+     * Returns a color from a string.
+     * 
+     * @param str String to parse.
+     * @return Color parsed.
+     */
+    static struct Color fromString(const std::string str);
+
+    float_t r, g, b, a;
+
+    const struct Color& operator = (const struct Color &val) {
+      this->r = val.r;
+      this->g = val.g;
+      this->b = val.b;
+      this->a = val.a;
+      return *this;
+    }
+
+    struct Color operator * (const float_t &x) {
+      return {
+        r * x,
+        g * x,
+        b * x,
+        a * x
+      };
+    }
+
+    struct Color operator - (const struct Color &color) {
+      return {
+        r - color.r,
+        g - color.g,
+        b - color.b,
+        a - color.a
+      };
+    }
+
+    struct Color operator + (const struct Color &color) {
+      return {
+        r + color.r,
+        g + color.g,
+        b + color.b,
+        a + color.a
+      };
+    }
+
+    const bool_t operator == (const struct Color &other) {
+      return r == other.r && g == other.g && b == other.b && a == other.a;
+    }
+
+    operator struct ColorU8() const {
+      return {
+        (uint8_t)(r * 255),
+        (uint8_t)(g * 255),
+        (uint8_t)(b * 255),
+        (uint8_t)(a * 255)
+      };
+    }
+  };
+  #pragma pack(pop)
+
+  #define COLOR_DEF(r,g,b,a)          { r, g, b, a }
+  #define COLOR_WHITE                 COLOR_DEF(1.0f, 1.0f, 1.0f, 1.0f)
+  #define COLOR_RED                   COLOR_DEF(1.0f, 0, 0, 1.0f)
+  #define COLOR_GREEN                 COLOR_DEF(0, 1.0f, 0, 1.0f)
+  #define COLOR_BLUE                  COLOR_DEF(0, 0, 1.0f, 1.0f)
+  #define COLOR_BLACK                 COLOR_DEF(0, 0, 0, 1.0f)
+  #define COLOR_MAGENTA               COLOR_DEF(1.0f, 0, 1.0f, 1.0f)
+  #define COLOR_DARK_GREY             COLOR_DEF(0.2f, 0.2f, 0.2f, 1.0f)
+  #define COLOR_LIGHT_GREY            COLOR_DEF(0.8f, 0.8f, 0.8f, 1.0f)
+  #define COLOR_CORNFLOWER_BLUE       COLOR_DEF(0.4f, 0.6f, 0.9f, 1.0f)
+  #define COLOR_WHITE_TRANSPARENT     COLOR_DEF(1.0f, 1.0f, 1.0f, 0.0f)
+  #define COLOR_BLACK_TRANSPARENT     COLOR_DEF(0.0f, 0.0f, 0.0f, 0.0f)
+  #define COLOR_TRANSPARENT           COLOR_WHITE_TRANSPARENT
+}