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feat(ui): text-fit, line-height, and ems against the font size an element ends with

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Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
Orkun ÇAKILKAYA 2026-09-24 21:51:41 +03:00
parent d163bad406
commit 355201f094
16 changed files with 149 additions and 21 deletions
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19
packages/ludic.ui/cascade.ludic
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@ -16,7 +16,16 @@ function cs_tree(n: UiNode) -> void {
n.children = shown
cs_order(n)
}
# twice: the font size first, from every rule, so an em anywhere reads the size the element ends with
function cs_node(n: UiNode) -> void {
cs_pass = 1
cs_styles(n)
cs_pass = 0
cs_styles(n)
an_apply(n)
tr_apply(n)
}
function cs_styles(n: UiNode) -> void {
cs_sheet(n, ua_sheet())
if n.ups != null { cs_merged(n) } else if n.sheet != null { cs_sheet(n, n.sheet) }
if n.style != null { cs_rule(n, n.style) }
@ -25,10 +34,12 @@ function cs_node(n: UiNode) -> void {
if n.ups[i].style != null { cs_rule_in(n, n.ups[i].style, n.ups[i].env) }
}
}
for i in 0 .. len(n.akeys) { el_apply(n, n.akeys[i], n.vals[i]) }
an_apply(n)
tr_apply(n)
for i in 0 .. len(n.akeys) {
if cs_pass_ok(n.akeys[i]) { el_apply(n, n.akeys[i], n.vals[i]) }
}
}
var cs_pass: int = 0
function cs_pass_ok(key: string) -> bool { return cs_pass == 0 or at_alias(key) == "size" }
function cs_sheet(n: UiNode, sh: UiSheet) -> void {
for i in 0 .. len(sh.rules) {
let r = sh.rules[i]
@ -42,7 +53,7 @@ function cs_rule_in(n: UiNode, r: UiRule, e: UiEnv) -> void {
if len(r.keys[j]) > 2 and r.keys[j][0..2] == "--" { el_attr(n, r.keys[j], ui_eval(r.vals[j], e)) }
}
for j in 0 .. len(r.keys) {
if not (len(r.keys[j]) > 2 and r.keys[j][0..2] == "--") { el_attr(n, r.keys[j], ui_eval(r.vals[j], e)) }
if not (len(r.keys[j]) > 2 and r.keys[j][0..2] == "--") and cs_pass_ok(r.keys[j]) { el_attr(n, r.keys[j], ui_eval(r.vals[j], e)) }
}
}
var ua_sh: UiSheet = null