refactored participant rendering

src/core/utils.typ

@@ -21,6 +21,15 @@
   }
   panic("Unsupported type '" + str(type(value)) + "'")
 }
+
+#let normalize-measure(body) = {
+  let m = measure(body)
+  return (
+    width: normalize-units(m.width),
+    height: normalize-units(m.height)
+  )
+}
+
 #let get-participants-i(participants) = {
   let pars-i = (:)
   for (i, p) in participants.enumerate() {
@@ -98,9 +107,19 @@
   )
 })
 
-#let extract-ctx(cetz-ctx) = {
+#let extract-ctx(cetz-ctx, with-style: false) = {
   let state = cetz-ctx.at("shared-state", default: (:))
-  return state.at("chronos", default: (:))
+  let ctx = state.at("chronos", default: (:))
+  if with-style {
+    ctx.style = styles.resolve(
+      cetz-ctx.style,
+      root: "chronos",
+      base: default-style
+    )
+    // Normalize because it is used very frequently
+    ctx.style.y-space = normalize-units(ctx.style.y-space)
+  }
+  return ctx
 }
 
 #let set-ctx(func) = draw.set-ctx(c => {
@@ -114,14 +133,7 @@
 })
 
 #let get-ctx(func) = draw.get-ctx(c => {
-  let ctx = extract-ctx(c)
-  ctx.style = styles.resolve(
-    c.style,
-    root: "chronos",
-    base: default-style
-  )
-  // Normalize because it is used very frequently
-  ctx.style.y-space = normalize-units(ctx.style.y-space)
+  let ctx = extract-ctx(c, with-style: true)
   func(ctx)
 })