# ui_text.ludic — text: text-fit shrinks a line to its chip down to a least size and then cuts it with
# an ellipsis; line-height as a multiple and in px; an em reads the font size the element ends with
# (set later in the rule, or by a later rule); a sheet's own rule wins a tie with one it imports.
import "ludic.ui"
import "ui_text_parts/Fit.ludic"
program UiText {
  numbers float
  state UiTextState {
    said: []string = new []string
  }
  function rec_text(ui_text_st: mut UiTextState, x: float, y: float, s: string, size: float, c: int, a: float) -> void { push(ui_text_st.said, `{s}@{int(size * 10.0)} y{int(y)}`) }
  function w(s: string, size: float) -> float { return float(len(s)) * size * 0.5 }
  entry (ui_st: mut UiState, ui_text_st: UiTextState) {
    let b = new UiBackend
    b.text = fn rec_text
    b.measure = fn w
    ui_backend(ui_st, b)
    ui_show(ui_st, "Fit", null, 0.0, 0.0, 400.0, 600.0)
    let root: UiNode = ui_nodes(ui_st, "Fit", null)
    ui_place(ui_st, root, 0.0, 0.0, 400.0, 600.0)
    let page = root.children[0]
    let lines = page.children[3]
    print(`{ui_text_st.said[0]} | {ui_text_st.said[1]} | {ui_text_st.said[2]} | lines {len(lines.lines)} {int(lines.mh)} {ui_text_st.said[3]} {ui_text_st.said[4]} | tall {int(page.children[4].mh)} | em {int(page.children[5].pt)} {int(page.children[6].pt)} | tie {ui_hex(page.children[7].fg)}`)
  }
}