/**
* Constructor.
*
* @param value the value to edit.
* @throws TagFormatException if the tag value cannot be retrieved with the expected type.
*/
public RationalTagValueComponent(TagValue value) throws TagFormatException {
super(new FlowLayout(FlowLayout.LEFT, 0, 0));
m_value = value;
Rational rational = m_value.getAsRational();
m_numer = new JTextField("" + rational.numerator, 5);
m_divider = new JLabel("/");
m_denom = new JTextField("" + rational.denominator, 5);
add(m_numer);
add(m_divider);
add(m_denom);
}
/**
* Returns the editted value.
*
* @return the editted value.
* @throws TagFormatException if the tag value cannot be retrieved with the expected type.
*/
public TagValue getTagValue() throws TagFormatException {
try {
long numer = Long.parseLong(m_numer.getText());
long denom = Long.parseLong(m_denom.getText());
Rational rational = new Rational(numer, denom);
return new TagValue(m_value.getTag(), rational);
} catch (NumberFormatException e) {
e.printStackTrace();
throw new TagFormatException(
m_numer.getText() + "/" + m_denom.getText() + " is not a valid rational");
}
}