/**
   * Prepare a bar checker on the provided sheet
   *
   * @param sheet the sheet to process
   * @param rough true for rough tests (when retrieving staff frames), false for precise tests
   */
  public BarsChecker(Sheet sheet, boolean rough) {
    this.sheet = sheet;
    this.rough = rough;

    scale = sheet.getScale();
    suite = new BarCheckSuite();
    staffManager = sheet.getStaffManager();
  }