[Minor] Css: Allow to convert css color to uint32_t

diff --git a/src/libserver/css/css_value.hxx b/src/libserver/css/css_value.hxx
index 4c013124c549576d454f17ad33be3eeeb3fc5682..9e192acb6fb2a442719de6f54d1686ed0b354888 100644 (file)
--- a/src/libserver/css/css_value.hxx
+++ b/src/libserver/css/css_value.hxx
@@ -40,6 +40,12 @@ struct alignas(int) css_color {
        css_color(std::uint8_t _r, std::uint8_t _g, std::uint8_t _b, std::uint8_t _alpha = 255) :
                r(_r), g(_g), b(_b), alpha(_alpha) {}
        css_color() = default;
+       constexpr auto to_number() const -> std::uint32_t {
+               return (std::uint32_t)alpha << 24 |
+                               (std::uint32_t)r << 16 |
+                               (std::uint32_t)g << 8 |
+                               (std::uint32_t)b << 0;
+       }
        friend bool operator==(const css_color& l, const css_color& r) {
                return (memcmp(&l, &r, sizeof(css_color)) == 0);
        }