javax.swing.JFormattedTextField#getFormatter ( )源码实例Demo

public NumberEditor(String fieldName, Object obj, Field field, int index, Class<?> type, SWFType swfType) {
    setSize(100, getSize().height);
    setMaximumSize(getSize());
    this.obj = obj;
    this.field = field;
    this.index = index;
    this.type = type;
    this.swfType = swfType;
    this.fieldName = fieldName;

    reset();
    JFormattedTextField jtf = ((JSpinner.NumberEditor) getEditor()).getTextField();
    DefaultFormatter formatter = (DefaultFormatter) jtf.getFormatter();
    formatter.setCommitsOnValidEdit(true);

}
 

/** Instantiates a new value spinner. */
public IntegerSpinner(int min, int max, int stepSize) {
    SpinnerNumberModel model = new SpinnerNumberModel(min, min, max, stepSize);
    setModel(model);

    JComponent comp = getEditor();
    final JFormattedTextField field = (JFormattedTextField) comp.getComponent(0);
    DefaultFormatter formatter = (DefaultFormatter) field.getFormatter();
    formatter.setCommitsOnValidEdit(true);
    addChangeListener(
            new ChangeListener() {
                private double oldValue = Double.MAX_VALUE;

                @Override
                public void stateChanged(ChangeEvent e) {

                    Double doubleValue = IntegerSpinner.this.getDoubleValue();

                    if (doubleValue != oldValue) {
                        double oldValueCopy = oldValue;

                        oldValue = doubleValue;
                        if (minIsZero && (doubleValue < 0.0)) {
                            doubleValue = 0.0;
                            field.setValue(doubleValue);
                        }

                        notifyListeners(oldValueCopy, doubleValue);
                    }
                }
            });
}
 

/**
 * Creates the ui.
 *
 * @param initialValue the initial value
 * @param min the minimum value
 * @param max the maximum value
 * @param stepSize the step size
 * @param noOfDecimalPlaces the number of decimal places
 */
private void createUI(
        Double initialValue,
        Double min,
        Double max,
        Double stepSize,
        double noOfDecimalPlaces) {
    SpinnerNumberModel model = new SpinnerNumberModel(initialValue, min, max, stepSize);
    setModel(model);

    JSpinner.NumberEditor editor = (JSpinner.NumberEditor) getEditor();
    DecimalFormat format = editor.getFormat();
    format.setMinimumFractionDigits((int) noOfDecimalPlaces);

    final JFormattedTextField field = editor.getTextField();
    DefaultFormatter formatter = (DefaultFormatter) field.getFormatter();
    formatter.setCommitsOnValidEdit(true);
    addChangeListener(
            new ChangeListener() {
                private double oldValue = Double.MAX_VALUE;

                @Override
                public void stateChanged(ChangeEvent e) {

                    Double doubleValue = DecimalSpinner.this.getDoubleValue();

                    if (doubleValue != oldValue) {
                        double oldValueCopy = oldValue;

                        oldValue = doubleValue;
                        if (minIsZero && (doubleValue < 0.0)) {
                            doubleValue = 0.0;
                            field.setValue(doubleValue);
                        }

                        notifyListeners(oldValueCopy, doubleValue);
                    }
                }
            });
}