private int getStartOffset(@NotNull Block rootBlock) {
    int minOffset = rootBlock.getTextRange().getStartOffset();
    if (myAffectedRanges != null) {
      for (FormatTextRange range : myAffectedRanges.getRanges()) {
        if (range.getStartOffset() < minOffset) minOffset = range.getStartOffset();
      }
    }
    return minOffset;
  }
private int getStartOffset(@NotNull Block rootBlock)