different configurations of JFormattedTextField: Number
/*
* Copyright (c) 2003-2005 JGoodies Karsten Lentzsch. All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* o Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* o Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* o Neither the name of JGoodies Karsten Lentzsch nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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package com.jgoodies.validation.tutorial.formatted;
import java.text.Format;
import java.text.NumberFormat;
import java.util.LinkedList;
import java.util.List;
import javax.swing.*;
import javax.swing.text.DefaultFormatter;
import javax.swing.text.DefaultFormatterFactory;
import javax.swing.text.NumberFormatter;
import com.jgoodies.forms.builder.DefaultFormBuilder;
import com.jgoodies.forms.layout.FormLayout;
import com.jgoodies.validation.formatter.EmptyNumberFormatter;
import com.jgoodies.validation.tutorial.formatted.format.DisplayFormat;
import com.jgoodies.validation.tutorial.formatted.formatter.CustomNumberFormatter;
import com.jgoodies.validation.tutorial.util.MyFocusTraversalPolicy;
import com.jgoodies.validation.tutorial.util.TutorialUtils;
/**
* Demonstrates different configurations of <code>JFormattedTextField</code>
* to display and edit numbers. Shows<ul>
* <li>how to use a custom NumberFormat
* <li>how to use a custom NumberFormatter
* <li>how to use a custom FormatterFactory
* <li>how to reset a number to <code>null</code>
* <li>how to map the empty string to a special number
* <li>how to commit values on valid texts
* <li>how to set the class of the result
* </ul><p>
*
* To look under the hood of this component, this class exposes
* the bound properties <em>text</em>, <em>value</em> and <em>editValid</em>.
*
* @author Karsten Lentzsch
* @version $Revision: 1.9 $
*
* @see JFormattedTextField
* @see JFormattedTextField.AbstractFormatter
*/
public class NumberExample {
public static void main(String[] args) {
try {
UIManager.setLookAndFeel("com.jgoodies.looks.plastic.PlasticXPLookAndFeel");
} catch (Exception e) {
// Likely Plastic is not in the classpath; ignore it.
}
JFrame frame = new JFrame();
frame.setTitle("Formatted :: Numbers");
frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
JComponent panel = new NumberExample()
.buildPanel();
frame.getContentPane().add(panel);
frame.pack();
TutorialUtils.locateOnScreenCenter(frame);
frame.setVisible(true);
}
/**
* Builds and returns a panel with a header row and the sample rows.
*
* @return the example panel with a header and the sample rows
*/
public JComponent buildPanel() {
FormLayout layout = new FormLayout(
"r:max(80dlu;pref), 4dlu, 45dlu, 1dlu, pref, 4dlu, pref, 0:grow");
DefaultFormBuilder builder = new DefaultFormBuilder(layout);
builder.setDefaultDialogBorder();
builder.getPanel().setFocusTraversalPolicy(
MyFocusTraversalPolicy.INSTANCE);
Utils.appendTitleRow(builder, "Description");
List fields = appendDemoRows(builder);
Utils.appendButtonBar(builder, fields, "42", "aa42");
return builder.getPanel();
}
/**
* Appends the demo rows to the given builder and returns the List of
* formatted text fields.
*
* @param builder the builder used to add components to
* @return the List of formatted text fields
*/
private List appendDemoRows(DefaultFormBuilder builder) {
// The Formatter is choosen by the initial value.
JFormattedTextField defaultNumberField =
new JFormattedTextField(new Long(42));
// The Formatter is choosen by the given Format.
JFormattedTextField noInitialValueField =
new JFormattedTextField(NumberFormat.getIntegerInstance());
// Uses a custom NumberFormat.
NumberFormat customFormat = NumberFormat.getIntegerInstance();
customFormat.setMinimumIntegerDigits(3);
JFormattedTextField customFormatField =
new JFormattedTextField(new NumberFormatter(customFormat));
// Uses a custom NumberFormatter that prints natural language strings.
JFormattedTextField customFormatterField =
new JFormattedTextField(new CustomNumberFormatter());
// Uses a custom FormatterFactory that used different formatters
// for the display and while editing.
DefaultFormatterFactory formatterFactory =
new DefaultFormatterFactory(new NumberFormatter(),
new CustomNumberFormatter());
JFormattedTextField formatterFactoryField =
new JFormattedTextField(formatterFactory);
// Wraps a NumberFormatter to map empty strings to null and vice versa.
JFormattedTextField numberOrNullField =
new JFormattedTextField(new EmptyNumberFormatter());
// Wraps a NumberFormatter to map empty strings to -1 and vice versa.
Integer emptyValue = new Integer(-1);
JFormattedTextField numberOrEmptyValueField =
new JFormattedTextField(new EmptyNumberFormatter(emptyValue));
numberOrEmptyValueField.setValue(emptyValue);
// Commits values on valid edit texts.
DefaultFormatter formatter = new NumberFormatter();
formatter.setCommitsOnValidEdit(true);
JFormattedTextField commitOnValidEditField =
new JFormattedTextField(formatter);
// Returns number values of type Integer
NumberFormatter numberFormatter = new NumberFormatter();
numberFormatter.setValueClass(Integer.class);
JFormattedTextField integerField =
new JFormattedTextField(numberFormatter);
Format displayFormat = new DisplayFormat(NumberFormat.getIntegerInstance());
Format typedDisplayFormat = new DisplayFormat(NumberFormat.getIntegerInstance(), true);
List fields = new LinkedList();
fields.add(Utils.appendRow(builder, "Default", defaultNumberField, typedDisplayFormat));
fields.add(Utils.appendRow(builder, "No initial value", noInitialValueField, displayFormat));
fields.add(Utils.appendRow(builder, "Empty <-> null", numberOrNullField, displayFormat));
fields.add(Utils.appendRow(builder, "Empty <-> -1", numberOrEmptyValueField, displayFormat));
fields.add(Utils.appendRow(builder, "Custom format", customFormatField, displayFormat));
fields.add(Utils.appendRow(builder, "Custom formatter", customFormatterField, displayFormat));
fields.add(Utils.appendRow(builder, "Formatter factory", formatterFactoryField, displayFormat));
fields.add(Utils.appendRow(builder, "Commits on valid edit", commitOnValidEditField, displayFormat));
fields.add(Utils.appendRow(builder, "Integer Result", integerField, typedDisplayFormat));
return fields;
}
}
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