feat(saju-ui-v2): _shell/helpers — hexA/daeunLabel/deriveTraits/colorMap + tests

2026-05-27 01:58:26 +09:00
parent 7f42c40efc
commit 47b5eab3ff
5 changed files with 115 additions and 0 deletions
--- a/src/pages/saju/_shell/helpers/hexA.js
+++ b/src/pages/saju/_shell/helpers/hexA.js
@@ -0,0 +1,6 @@
+export default function hexA(hex, alpha) {
+  const h = hex.replace('#', '');
+  const expanded = h.length === 3 ? h.split('').map((c) => c + c).join('') : h;
+  const n = parseInt(expanded, 16);
+  return `rgba(${(n >> 16) & 255},${(n >> 8) & 255},${n & 255},${alpha})`;
+}