How to use

StyledString$Styler

in

org.eclipse.jface.viewers

  @Override
  public void applyStyles(TextStyle textStyle) {
    StyledString.QUALIFIER_STYLER.applyStyles(textStyle);
    getBoldStylerProvider().getBoldStyler().applyStyles(textStyle);
  }
};

private StyleRange createStyleRange(int start, int end, Styler style) {
  StyleRange styleRange = new StyleRange();
  styleRange.start = start;
  styleRange.length = end - start;
  style.applyStyles(styleRange);
  return styleRange;
}

  @Override
  public void applyStyles(TextStyle textStyle) {
    StyledString.QUALIFIER_STYLER.applyStyles(textStyle);
    getBoldStylerProvider().getBoldStyler().applyStyles(textStyle);
  }
};

private StyleRange createStyleRange(int start, int end, Styler style) {
  StyleRange styleRange = new StyleRange();
  styleRange.start = start;
  styleRange.length = end - start;
  style.applyStyles(styleRange);
  return styleRange;
}