Returns a radio button with the specified properties. - Java Swing

Java examples for Swing:JButton

  1. HOME
  2. Java
  3. Swing
  4. JButton

Description

Returns a radio button with the specified properties.

Demo Code

/*/*ww  w . j a v  a  2  s.c om*/
 * 09/08/2005
 *
 * UIUtil.java - Utility methods for org.fife.ui classes.
 * Copyright (C) 2005 Robert Futrell
 * http://fifesoft.com/rtext
 * Licensed under a modified BSD license.
 * See the included license file for details.
 */
//package com.java2s;

import java.awt.event.ActionListener;

import java.util.MissingResourceException;
import java.util.ResourceBundle;

import javax.swing.ButtonGroup;

import javax.swing.JRadioButton;

public class Main {
    /**
     * Returns a radio button with the specified properties.
     *
     * @param msg The resource bundle in which to get properties.
     * @param keyRoot The key into the bundle containing the radio button's
     *        label.  If another property is defined with the name
     *        <code>keyRoot + ".Mnemonic"</code>, it is used for the
     *        mnemonic for the radio button.
     * @param bg If non-<code>null</code>, the radio button is added to the
     *        button group.
     * @return The <code>JRadioButton</code>.
     * @see #newRadio(ResourceBundle, String, ButtonGroup, ActionListener)
     * @see #newRadio(ResourceBundle, String, ButtonGroup, ActionListener, boolean)
     */
    public static final JRadioButton newRadio(ResourceBundle msg,
            String keyRoot, ButtonGroup bg) {
        return newRadio(msg, keyRoot, bg, null, false);
    }

    /**
     * Returns a radio button with the specified properties.
     *
     * @param msg The resource bundle in which to get properties.
     * @param keyRoot The key into the bundle containing the radio button's
     *        label.  If another property is defined with the name
     *        <code>keyRoot + ".Mnemonic"</code>, it is used for the
     *        mnemonic for the radio button.
     * @param bg If non-<code>null</code>, the radio button is added to the
     *        button group.
     * @param listener If non-<code>null</code>, the listener is added to
     *        the radio button.
     * @return The <code>JRadioButton</code>.
     * @see #newRadio(ResourceBundle, String, ButtonGroup)
     * @see #newRadio(ResourceBundle, String, ButtonGroup, ActionListener, boolean)
     */
    public static final JRadioButton newRadio(ResourceBundle msg,
            String keyRoot, ButtonGroup bg, ActionListener listener) {
        return newRadio(msg, keyRoot, bg, listener, false);
    }

    /**
     * Returns a radio button with the specified properties.
     *
     * @param msg The resource bundle in which to get properties.
     * @param keyRoot The key into the bundle containing the radio button's
     *        label.  If another property is defined with the name
     *        <code>keyRoot + ".Mnemonic"</code>, it is used for the
     *        mnemonic for the radio button.
     * @param bg If non-<code>null</code>, the radio button is added to the
     *        button group.
     * @param listener If non-<code>null</code>, the listener is added to
     *        the radio button.
     * @param selected Whether the radio button is initially selected.
     * @return The <code>JRadioButton</code>.
     * @see #newRadio(ResourceBundle, String, ButtonGroup)
     * @see #newRadio(ResourceBundle, String, ButtonGroup, ActionListener)
     */
    public static final JRadioButton newRadio(ResourceBundle msg,
            String keyRoot, ButtonGroup bg, ActionListener listener,
            boolean selected) {
        JRadioButton radio = new JRadioButton(msg.getString(keyRoot));
        radio.setMnemonic(getMnemonic(msg, mnemonicKey(keyRoot)));
        if (bg != null) {
            bg.add(radio);
        }
        if (listener != null) {
            radio.addActionListener(listener);
        }
        radio.setSelected(selected);
        return radio;
    }

    /**
     * Returns the mnemonic specified by the given key in a resource bundle.
     * 
     * @param msg The resource bundle.
     * @param key The key for the mnemonic.
     * @return The mnemonic, or <code>0</code> if not found.
     */
    public static final int getMnemonic(ResourceBundle msg, String key) {
        int mnemonic = 0;
        try {
            Object value = msg.getObject(key);
            if (value instanceof String) {
                mnemonic = ((String) value).charAt(0);
            }
        } catch (MissingResourceException mre) {
            // Swallow.  TODO: When we drop 1.4/1.5 support, use containsKey().
        }
        return mnemonic;
    }

    /**
     * Returns the default key for a button or menu item's mnemonic, based
     * on its root key.
     * 
     * @param key The key.
     * @return The mnemonic key.
     */
    private static final String mnemonicKey(String key) {
        return key + ".Mnemonic";
    }
}

Related Tutorials