private void paintLineExtensionsBackground(int visualLine, float x, int y) {
      List<LineExtensionData> data = myExtensionData.get(visualLine);
      if (data == null) return;
      for (LineExtensionData datum : data) {
        float width = datum.layout.getWidth();
        paintBackground(datum.info.getBgColor(), x, y, width);
        x += width;
      }
    }
private void paintLineExtensionsBackground(int visualLine, float x, int y)