私は…全範囲の実際のリストを作成せずにそれを行う方法があるかもしれないと思います。
1つのアプローチは、以下に示すように、AbstractSpinnerModel
を作成するために拡張することです。LongNumberModel
この関連する例も参照してください。
import java.awt.BorderLayout;
import java.awt.EventQueue;
import java.awt.HeadlessException;
import java.text.ParseException;
import javax.swing.AbstractSpinnerModel;
import javax.swing.JFormattedTextField;
import javax.swing.JFormattedTextField.AbstractFormatter;
import javax.swing.JFrame;
import javax.swing.JSpinner;
import javax.swing.text.DefaultFormatter;
import javax.swing.text.DefaultFormatterFactory;
/**
* @see https://stackoverflow.com/a/13121724/230513
* @see https://stackoverflow.com/a/9758714/230513
*/
public class HexSpinnerTest {
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
@Override
public void run() {
display();
}
});
}
private static void display() throws HeadlessException {
JFrame f = new JFrame();
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JSpinner sp = new JSpinner(new LongNumberModel(0x8000L, 0x8000L, 0xFFFFL, 1L));
JSpinner.DefaultEditor editor = (JSpinner.DefaultEditor) sp.getEditor();
JFormattedTextField tf = editor.getTextField();
tf.setFormatterFactory(new MyFormatterFactory());
f.getContentPane().add(sp, BorderLayout.NORTH);
f.pack();
f.setLocationRelativeTo(null);
f.setVisible(true);
}
private static class LongNumberModel extends AbstractSpinnerModel {
private Long value, stepSize;
private Comparable<Long> minimum, maximum;
public LongNumberModel(Long value, Long minimum, Long maximum, Long stepSize) {
this.value = value;
this.minimum = minimum;
this.maximum = maximum;
this.stepSize = stepSize;
}
@Override
public Object getValue() {
return value;
}
@Override
public void setValue(Object value) {
this.value = (Long) value;
fireStateChanged();
}
@Override
public Object getNextValue() {
long v = value.longValue() + stepSize.longValue();
return bounded(v);
}
@Override
public Object getPreviousValue() {
long v = value.longValue() - stepSize.longValue();
return bounded(v);
}
private Object bounded(long v) {
if ((maximum != null) && (maximum.compareTo(v) < 0)) {
return null;
}
if ((minimum != null) && (minimum.compareTo(v) > 0)) {
return null;
}
return Long.valueOf(v);
}
}
private static class MyFormatterFactory extends DefaultFormatterFactory {
@Override
public AbstractFormatter getDefaultFormatter() {
return new HexFormatter();
}
}
private static class HexFormatter extends DefaultFormatter {
@Override
public Object stringToValue(String text) throws ParseException {
try {
return Long.valueOf(text, 16);
} catch (NumberFormatException nfe) {
throw new ParseException(text, 0);
}
}
@Override
public String valueToString(Object value) throws ParseException {
return Long.toHexString(
((Long) value).intValue()).toUpperCase();
}
}
}