Splash.java Source code

Java tutorial

Introduction

Here is the source code for Splash.java

Source

/*
 * Copyright (c) Ian F. Darwin, http://www.darwinsys.com/, 1996-2002.
 * All rights reserved. Software written by Ian F. Darwin and others.
 * $Id: LICENSE,v 1.8 2004/02/09 03:33:38 ian Exp $
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. 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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS''
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 * 
 * Java, the Duke mascot, and all variants of Sun's Java "steaming coffee
 * cup" logo are trademarks of Sun Microsystems. Sun's, and James Gosling's,
 * pioneering role in inventing and promulgating (and standardizing) the Java 
 * language and environment is gratefully acknowledged.
 * 
 * The pioneering role of Dennis Ritchie and Bjarne Stroustrup, of AT&T, for
 * inventing predecessor languages C and C++ is also gratefully acknowledged.
 */

import java.awt.Color;
import java.awt.*;
import java.awt.Graphics;
import java.awt.MediaTracker;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;

import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.JWindow;

/** A simple Splash screen. */
public class Splash extends JWindow {
    protected ImageIcon im;

    public Splash(JFrame f, String progName, String fileName) {
        super();
        // Can't use Swing border on JWindow: not a JComponent.
        // setBorder(BorderFactory.createBevelBorder(BevelBorder.RAISED));
        im = new ImageIcon(fileName);
        if (im.getImageLoadStatus() != MediaTracker.COMPLETE)
            JOptionPane.showMessageDialog(f, "Warning: can't load image " + fileName + "\n"
                    + "Please be sure you have installed " + progName + " correctly", "Warning",
                    JOptionPane.WARNING_MESSAGE);
        int w = im.getIconWidth(), h = im.getIconHeight();
        setSize(w, h);
        UtilGUI.center(this);
        addMouseListener(new MouseAdapter() {
            public void mouseClicked(MouseEvent e) {
                dispose();
            }
        });
        addKeyListener(new KeyAdapter() {
            public void keyTyped(KeyEvent e) {
                dispose();
            }
        });
    }

    public void paint(Graphics g) {
        im.paintIcon(this, g, 0, 0);
        g.setColor(Color.green);
        g.drawRoundRect(0, 0, getWidth() - 1, getHeight() - 1, 7, 7);
    }
}

class UtilGUI {

    /** Centre a Window, Frame, JFrame, Dialog, etc. */
    public static void centre(Window w) {
        // After packing a Frame or Dialog, centre it on the screen.
        Dimension us = w.getSize(), them = Toolkit.getDefaultToolkit().getScreenSize();
        int newX = (them.width - us.width) / 2;
        int newY = (them.height - us.height) / 2;
        w.setLocation(newX, newY);
    }

    /**
     * Center a Window, Frame, JFrame, Dialog, etc., but do it the American
     * Spelling Way :-)
     */
    public static void center(Window w) {
        UtilGUI.centre(w);
    }

    /** Maximize a window, the hard way. */
    public static void maximize(Window w) {
        Dimension us = w.getSize(), them = Toolkit.getDefaultToolkit().getScreenSize();
        w.setBounds(0, 0, them.width, them.height);
    }
}