Add Color::fromRGB()

Signed-off-by: falkTX <falktx@falktx.com>

Author: falkTX

dgl/Color.hpp

@@ -1,6 +1,6 @@
 /*
  * DISTRHO Plugin Framework (DPF)
- * Copyright (C) 2012-2022 Filipe Coelho <falktx@falktx.com>
+ * Copyright (C) 2012-2025 Filipe Coelho <falktx@falktx.com>
  *
  * Permission to use, copy, modify, and/or distribute this software for any purpose with
  * or without fee is hereby granted, provided that the above copyright notice and this
@@ -115,6 +115,17 @@ struct Color {
     */
     static Color fromHTML(const char* rgb, float alpha = 1.0f) noexcept;
 
+   /**
+      Create a color from a RGB unsigned integer.
+      Basically doing:
+      ```
+      uint8_t red   = (color >> 24) & 0xff;
+      uint8_t green = (color >> 16) & 0xff;
+      uint8_t blue  = (color >>  8) & 0xff;
+      ```
+    */
+    static Color fromRGB(uint color, float alpha = 1.0f) noexcept;
+
    /**
       Linearly interpolate this color against another.
     */

dgl/src/Color.cpp

@@ -1,6 +1,6 @@
 /*
  * DISTRHO Plugin Framework (DPF)
- * Copyright (C) 2012-2021 Filipe Coelho <falktx@falktx.com>
+ * Copyright (C) 2012-2025 Filipe Coelho <falktx@falktx.com>
  *
  * Permission to use, copy, modify, and/or distribute this software for any purpose with
  * or without fee is hereby granted, provided that the above copyright notice and this
@@ -242,6 +242,14 @@ Color Color::fromHTML(const char* rgb, const float alpha) noexcept
     return Color(r, g, b, alpha);
 }
 
+Color Color::fromRGB(const uint color, const float alpha) noexcept
+{
+    return Color(static_cast<int>(color >> 24) & 0xff,
+                 static_cast<int>(color >> 16) & 0xff,
+                 static_cast<int>(color >>  8) & 0xff,
+                 alpha);
+}
+
 void Color::interpolate(const Color& other, float u) noexcept
 {
     fixRange(u);

distrho/DistrhoUI.hpp

@@ -106,10 +106,11 @@ class UI : public UIWidget
 
       The following example code can be use to extract individual colors:
       ```
-      const int red   = (bgColor >> 24) & 0xff;
-      const int green = (bgColor >> 16) & 0xff;
-      const int blue  = (bgColor >>  8) & 0xff;
+      int red   = (bgColor >> 24) & 0xff;
+      int green = (bgColor >> 16) & 0xff;
+      int blue  = (bgColor >>  8) & 0xff;
       ```
+      @see Color::fromRGB
     */
     uint getBackgroundColor() const noexcept;
 
@@ -119,10 +120,11 @@ class UI : public UIWidget
 
       The following example code can be use to extract individual colors:
       ```
-      const int red   = (fgColor >> 24) & 0xff;
-      const int green = (fgColor >> 16) & 0xff;
-      const int blue  = (fgColor >>  8) & 0xff;
+      int red   = (fgColor >> 24) & 0xff;
+      int green = (fgColor >> 16) & 0xff;
+      int blue  = (fgColor >>  8) & 0xff;
       ```
+      @see Color::fromRGB
     */
     uint getForegroundColor() const noexcept;