# node_more.ludic - what only some elements say, kept apart from UiNode so the common node stays
# small: made the first time a property needs it (nx), and null everywhere else
# a component user's styles for the root it passed class, style and id down to
export property UiPass {
  sheet: UiSheet = null         # the sheet of the file the component's tag was written in
  style: UiRule = null          # the tag's style="..."
  env: UiEnv = null             # where the tag's values are read
}
export property UiNodeX {
  shrink: float = -1.0          # flex-shrink; -1: a scroll box's 1, anything else's 0 (or 1 in a column)
  order: int = 0                # flex's order
  w_off: float = 0.0            # calc(): the lengths added to a percentage width or height
  h_off: float = 0.0
  mh_min: float = 0.0           # how short a column can be pressed: its scroll boxes give way
  has_min: bool = false
  tsh_set: bool = false         # text-shadow, inherited as CSS's is; tsh_c -2 is none
  tsh_x: float = 0.0
  tsh_y: float = 0.0
  tsh_c: int = -2
  tsh_a: float = 1.0
  no_pointer: bool = false      # pointer-events: none - the pointer goes through it
  fit_min: float = 0.0          # text-fit: shrink MIN - the smallest a line is shrunk to fit its box
  lh_kind: int = 0              # line-height: 0 normal, 1 a multiple of the font size, 2 px
  lh_v: float = 0.0
  ip_t: float = 0.0             # an inset's percentage of its containing block (top right bottom left)
  ip_r: float = 0.0
  ip_b: float = 0.0
  ip_l: float = 0.0
  grad: UiGradient = null       # background: linear-gradient(...)
  ratio: float = 0.0            # aspect-ratio, width over height; 0 none
  fit_obj: int = 0              # object-fit: 0 fill, 1 contain, 2 cover, 3 none, 4 scale-down
  zoom: float = 1.0             # zoom: this element and everything inside it, larger or smaller
}
function nx(n: UiNode) -> UiNodeX {
  @alloc_ok("once per pooled node: its extras are kept")
  if n.ex == null { n.ex = new UiNodeX }
  return n.ex
}
function ly_woff(n: UiNode) -> float {
  if n.ex == null { return 0.0 }
  return n.ex.w_off
}
function ly_hoff(n: UiNode) -> float {
  if n.ex == null { return 0.0 }
  return n.ex.h_off
}
# a percentage width or height in `room`, with what calc() added to it
function ly_pw(n: UiNode, room: float) -> float { return room * n.w_pct / 100.0 + ly_woff(n) }
function ly_ph(n: UiNode, room: float) -> float { return room * n.h_pct / 100.0 + ly_hoff(n) }
function ly_order(n: UiNode) -> int {
  if n.ex == null { return 0 }
  return n.ex.order
}