Function onRotMove

app.js:4493–4511

(e)

  });

  function onRotMove(e) {
    if (!rotating) return;
    const el = elements.find((x) => x.id === elementId);
    if (!el || el.locked || el.hidden) return;
    const cx = el.x + el.w / 2;
    const cy = el.y + el.h / 2;
    const p = clientToArtboardPx(e.clientX, e.clientY);
    const a1 = Math.atan2(p.y - cy, p.x - cx) * (180 / Math.PI);
    let delta = a1 - startAngleDeg;
    while (delta > 180) delta -= 360;
    while (delta < -180) delta += 360;
    let rot = startRot + delta;
    if (e.shiftKey) rot = Math.round(rot / 15) * 15;
    el.rotation = Math.round(rot);
    updatePropsInputs(false);
    renderElements();
    renderLayers();
    updateCode();
  }

  function onRotUp() {
    if (rotating) pushHistory();