# media.ludic - @media (min-width: 1280px) and (max-height: 720px) { ... }: rules that hold only
# while the screen's area is that size
export property UiMedia {
  min_w: float = 0.0
  max_w: float = 0.0
  min_h: float = 0.0
  max_h: float = 0.0
}
function md_parse(cond: string) -> UiMedia {
  let m = new UiMedia
  let parts = lss_split(cond, 40)
  for i in 0 .. len(parts) {
    let p = parts[i]
    var colon = -1
    for k in 0 .. len(p) {
      if colon < 0 and p[k] == 58 { colon = k }
    }
    if colon < 0 { continue }
    let key = tpl_words(p[0..colon])
    let v = el_num(tpl_words(p[colon + 1..len(p)]))
    if key == "min-width" { m.min_w = v }
    if key == "max-width" { m.max_w = v }
    if key == "min-height" { m.min_h = v }
    if key == "max-height" { m.max_h = v }
  }
  return m
}
function md_ok(ui_st: UiState, r: UiRule) -> bool {
  let m = r.md
  if m == null { return true }
  if m.min_w > 0.0 and ui_st.ly_vp_w < m.min_w { return false }
  if m.max_w > 0.0 and ui_st.ly_vp_w > m.max_w { return false }
  if m.min_h > 0.0 and ui_st.ly_vp_h < m.min_h { return false }
  if m.max_h > 0.0 and ui_st.ly_vp_h > m.max_h { return false }
  return true
}