How to use

toDocumentLineNumber

method

in

org.eclipse.jface.text.source.IVerticalRulerInfo

public int toDocumentLineNumber(int y_coordinate) {
  if (fDelegate instanceof IVerticalRulerInfo)
    ((IVerticalRulerInfo) fDelegate).toDocumentLineNumber(y_coordinate);
  return -1;
}

  public int toDocumentLineNumber(int y_coordinate) {
    if (fDelegate instanceof IVerticalRulerInfo)
      ((IVerticalRulerInfo) fDelegate).toDocumentLineNumber(y_coordinate);
    return -1;
  }
}

  @Override
  public int toDocumentLineNumber(int y_coordinate) {
    if (fDelegate instanceof IVerticalRulerInfo)
      return ((IVerticalRulerInfo)fDelegate).toDocumentLineNumber(y_coordinate);
    return -1;
  }
}

/**
 * Returns the line of interest deduced from the mouse hover event.
 *
 * @param event a mouse hover event that triggered hovering
 * @return the document model line number on which the hover event occurred or <code>-1</code> if there is no event
 * @since 3.0
 */
private int getHoverLine(MouseEvent event) {
  return event == null ? -1 : fVerticalRulerInfo.toDocumentLineNumber(event.y);
}

/**
 * Returns the line of interest deduced from the mouse hover event.
 *
 * @param event a mouse hover event that triggered hovering
 * @return the document model line number on which the hover event occurred or <code>-1</code> if there is no event
 * @since 3.0
 */
private int getHoverLine(MouseEvent event) {
  return event == null ? -1 : fVerticalRulerInfo.toDocumentLineNumber(event.y);
}

@Override
public int toDocumentLineNumber(int y_coordinate) {
  if (fDelegate instanceof IVerticalRulerInfo)
    return ((IVerticalRulerInfo)fDelegate).toDocumentLineNumber(y_coordinate);
  return -1;
}

@Override
protected void computeInformation() {
  Point location= getHoverEventLocation();
  int line= getVerticalRulerInfo().toDocumentLineNumber(location.y);
  IAnnotationHover hover= getAnnotationHover();
  IInformationControlCreator controlCreator= null;
  if (hover instanceof IAnnotationHoverExtension)
    controlCreator= ((IAnnotationHoverExtension)hover).getHoverControlCreator();
  setCustomInformationControlCreator(controlCreator);
  setInformation(hover.getHoverInfo(getSourceViewer(), line), computeArea(location.y));
}

@Override
protected void computeInformation() {
  Point location= getHoverEventLocation();
  int line= getVerticalRulerInfo().toDocumentLineNumber(location.y);
  IAnnotationHover hover= getAnnotationHover();
  IInformationControlCreator controlCreator= null;
  if (hover instanceof IAnnotationHoverExtension)
    controlCreator= ((IAnnotationHoverExtension)hover).getHoverControlCreator();
  setCustomInformationControlCreator(controlCreator);
  setInformation(hover.getHoverInfo(getSourceViewer(), line), computeArea(location.y));
}