com.db2eshop.gui.splash.BootSplash.java Source code

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/*
 * Copyright 2012 Denis Neuling, Dennis Wieding, Mateusz Wozniak
 * 
 * Licensed 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.
 */
package com.db2eshop.gui.splash;

import java.awt.Color;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.Toolkit;

import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JWindow;
import javax.swing.SwingConstants;

import net.miginfocom.swing.MigLayout;

import org.springframework.beans.BeansException;
import org.springframework.beans.factory.config.BeanPostProcessor;
import org.springframework.context.ApplicationEvent;
import org.springframework.context.ApplicationListener;
import org.springframework.context.event.ContextRefreshedEvent;

/**
 * <p>
 * BootSplash class.
 * </p>
 *
 * @author Denis Neuling (denisneuling@gmail.com)
 * 
 */
@SuppressWarnings("rawtypes")
public class BootSplash implements ApplicationListener, BeanPostProcessor {
    private SplashScreen splashScreen;

    private static BootSplash INSTANCE;

    /**
     * <p>
     * getInstance.
     * </p>
     *
     * @return a {@link com.db2eshop.gui.splash.BootSplash} object.
     */
    public static BootSplash getInstance() {
        if (INSTANCE == null) {
            INSTANCE = new BootSplash();
        }
        return INSTANCE;
    }

    private BootSplash() {
        splashScreen = new SplashScreen();
    }

    /**
     * <p>
     * Getter for the field <code>splashScreen</code>.
     * </p>
     *
     * @return a {@link com.db2eshop.gui.splash.SplashScreen} object.
     */
    public static SplashScreen getSplashScreen() {
        return getInstance().splashScreen;
    }

    /** {@inheritDoc} */
    @Override
    public Object postProcessAfterInitialization(Object bean, String beanName) throws BeansException {
        splashScreen.setMessage("Initialized " + bean.getClass().getSimpleName());

        // ugly hack
        // to dispose the splashscreen even if the context is loading the config
        // processor not fast enough
        if ("AnnotationBeanConfigurerAspect".equals(bean.getClass().getSimpleName())) {
            splashScreen.dispose();
        }
        return bean;
    }

    /** {@inheritDoc} */
    @Override
    public Object postProcessBeforeInitialization(Object bean, String beanName) throws BeansException {
        splashScreen.setMessage("Initializing " + bean.getClass().getSimpleName());
        return bean;
    }

    /** {@inheritDoc} */
    @Override
    public void onApplicationEvent(ApplicationEvent event) {
        if (event instanceof ContextRefreshedEvent) {
            splashScreen.dispose();
        }
    }

    private class SplashScreen extends JWindow {
        private static final long serialVersionUID = 3888409743043286932L;
        private JLabel head;
        private JLabel label;

        /**
         * <p>
         * Constructor for SplashScreen.
         * </p>
         */
        public SplashScreen() {
            JPanel content = new JPanel();
            content.setLayout(new MigLayout("fill"));

            head = new JLabel(
                    "<html><body><h2>Projektarbeit HTW Berlin DB2</h2><br>Denis Neuling (denisneuling@gmail.com)<br>Dennis Wieding (e-dennis@gmx.net)<br>Mateusz Wozniak (asro@live.de)</body></html>");
            head.setMinimumSize(new Dimension(60, 20));
            head.setBackground(new Color(0, 0, 0, 0));
            head.setFont(new Font(head.getFont().getName(), Font.BOLD, 9));
            head.setHorizontalAlignment(SwingConstants.CENTER);
            content.add(head, "grow,push,wrap");

            label = new JLabel(
                    "                                                                                                                        ");
            label.setMinimumSize(new Dimension(60, 20));
            label.setBackground(new Color(0, 0, 0, 0));
            label.setFont(new Font(label.getFont().getName(), Font.BOLD, 9));
            label.setHorizontalAlignment(SwingConstants.CENTER);
            label.firePropertyChange("opaque", false, true);
            content.add(label, "grow,push");
            this.setLayout(new MigLayout("fill"));
            this.add(content, "grow,push");
            pack();

            Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
            int w = this.getSize().width;
            int h = this.getSize().height;
            int x = (screenSize.width - w) / 2;
            int y = (screenSize.height - h) / 2;

            this.setLocation(x, y);
            setVisible(true);
        }

        /**
         * <p>
         * setMessage.
         * </p>
         * 
         * @param message
         *            a {@link java.lang.String} object.
         */
        public void setMessage(String message) {
            label.setText("<html><body><i>" + message + "</i></body></html>");
        }
    }
}