message: feat: export getBoxPosition()
diff: @@ -490,7 +490,7 @@ function onBgImageLoaded(image, textBackgroundColor) {
  textBackgroundColor.image = image;
  }
  -function getBoxPosition(out, hostEl, style, rect) {
  +export function getBoxPosition(out, hostEl, style, rect) {
  var baseX = style.x || 0;
  var baseY = style.y || 0;
  var textAlign = style.textAlign;
  