How to use

removeAll

method

in

weka.gui.knowledgeflow.NoteVisual

/**
 * Set the {@code StepManagerImpl} for the step covered by this visual
 *
 * @param manager the step manager to wrap
 */
@Override
public void setStepManager(StepManagerImpl manager) {
 super.setStepManager(manager);
 removeAll();
 setLayout(new BorderLayout());
 setBorder(new ShadowBorder(2, Color.GRAY));
 m_label.setText(convertToHTML(((Note) getStepManager().getManagedStep())
  .getNoteText()));
 m_label.setOpaque(true);
 m_label.setBackground(Color.YELLOW);
 JPanel holder = new JPanel();
 holder.setLayout(new BorderLayout());
 holder.setBorder(BorderFactory.createEmptyBorder(2, 2, 2, 2));
 holder.setOpaque(true);
 holder.setBackground(Color.YELLOW);
 holder.add(m_label, BorderLayout.CENTER);
 add(holder, BorderLayout.CENTER);
}

/**
 * Set the {@code StepManagerImpl} for the step covered by this visual
 *
 * @param manager the step manager to wrap
 */
@Override
public void setStepManager(StepManagerImpl manager) {
 super.setStepManager(manager);
 removeAll();
 setLayout(new BorderLayout());
 setBorder(new ShadowBorder(2, Color.GRAY));
 m_label.setText(convertToHTML(((Note) getStepManager().getManagedStep())
  .getNoteText()));
 m_label.setOpaque(true);
 m_label.setBackground(Color.YELLOW);
 JPanel holder = new JPanel();
 holder.setLayout(new BorderLayout());
 holder.setBorder(BorderFactory.createEmptyBorder(2, 2, 2, 2));
 holder.setOpaque(true);
 holder.setBackground(Color.YELLOW);
 holder.add(m_label, BorderLayout.CENTER);
 add(holder, BorderLayout.CENTER);
}