JToolbarToggleButton.java Source code

Introduction

Here is the source code for JToolbarToggleButton.java

Source

/*
    
   Licensed to the Apache Software Foundation (ASF) under one or more
   contributor license agreements.  See the NOTICE file distributed with
   this work for additional information regarding copyright ownership.
   The ASF licenses this file to You under the Apache License, Version 2.0
   (the "License"); you may not use this file except in compliance with
   the License.  You may obtain a copy of the License at
    
   http://www.apache.org/licenses/LICENSE-2.0
    
   Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS,
   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   See the License for the specific language governing permissions and
   limitations under the License.
    
 */

import java.awt.Insets;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;

import javax.swing.JToggleButton;
import javax.swing.UIManager;

/**
 * This class represents the toggle buttons used in toolbars.
 *
 * @version $Id: JToolbarButton.java 498555 2007-01-22 08:09:33Z cam $
 */
public class JToolbarToggleButton extends JToggleButton {

    /**
     * Creates a new toolbar button.
     */
    public JToolbarToggleButton() {
        initialize();
    }

    /**
     * Creates a new toolbar button.
     * @param txt The button text.
     */
    public JToolbarToggleButton(String txt) {
        super(txt);
        initialize();
    }

    /**
     * Initializes the button.
     */
    protected void initialize() {
        if (!System.getProperty("java.version").startsWith("1.3")) {
            setOpaque(false);
            setBackground(new java.awt.Color(0, 0, 0, 0));
        }
        setBorderPainted(false);
        setMargin(new Insets(2, 2, 2, 2));

        // Windows XP look and feel seems to have a bug due to which the
        // size of the parent container changes when the border painted
        // property is set. Temporary fix: disable mouseover behavior if
        // installed lnf is Windows XP
        if (!UIManager.getLookAndFeel().getName().equals("Windows")) {
            addMouseListener(new MouseListener());
        }
    }

    /**
     * To manage the mouse interactions.
     */
    protected class MouseListener extends MouseAdapter {
        public void mouseEntered(MouseEvent ev) {
            setBorderPainted(true);
        }

        public void mouseExited(MouseEvent ev) {
            setBorderPainted(false);
        }
    }
}