/**
* Create a line number component for a text component.
*
* @param component the related text component
* @param minimumDisplayDigits the number of digits used to calculate the minimum width of the
* component
*/
public TextLineNumber(JTextComponent component, int minimumDisplayDigits) {
this.component = component;
setFont(component.getFont());
setBorderGap(5);
setCurrentLineForeground(Color.RED);
setDigitAlignment(RIGHT);
setMinimumDisplayDigits(minimumDisplayDigits);
component.getDocument().addDocumentListener(this);
component.addCaretListener(this);
component.addPropertyChangeListener("font", this);
}
@Override
public void install(final JTextComponent c) {
super.install(c);
isMultiLineEditor = c instanceof JTextArea || c instanceof JEditorPane;
c.addPropertyChangeListener(this);
}
