ableos/sysdata/libraries/horizon_api/src/ui.hb

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2024-11-06 11:43:40 -06:00
stn := @use("../../../libraries/stn/src/lib.hb");
.{string, log} := stn;
.{Vec2} := stn.math
render := @use("../../../libraries/render/src/lib.hb");
.{Surface} := render;
.{Font} := render.text
UI := struct {
raw: ^u8,
raw_length: uint,
is_dirty: bool,
surface: Surface,
}
render_ui := fn(surface: Surface, ui: UI): void {
if ui.is_dirty {
render.clear(ui.surface, render.black)
ui.is_dirty = false
}
pos := Vec2(uint).(0, 0)
render.put_surface(surface, ui.surface, pos, false)
}
sexpr_parser := fn(sexpr: ^u8): UI {
cursor := sexpr
paren_balance := 0
loop {
if *cursor == 0 {
if paren_balance != 0 {
log.error("Unbalanced Parens\0")
}
break
} else if *cursor == 40 {
log.info("Open paren\0")
paren_balance += 1
} else if *cursor == 41 {
log.info("Closed paren\0")
paren_balance -= 1
}
cursor += 1
}
length := string.length(sexpr)
ui_surface := render.new_surface(100, 100)
return UI.(sexpr, length, true, ui_surface)
}