splashscreen.java

图像检索的代码b

/*
 * This file is part of Caliph & Emir.
 *
 * Caliph & Emir is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * Caliph & Emir is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Caliph & Emir; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * Copyright statement:
 * --------------------
 * (c) 2002-2004 by Mathias Lux ([e-mail])
 * http://www.juggle.at
 */

package at.lux.splash;

import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import java.util.Properties;
import java.io.FileOutputStream;
import java.io.File;
import java.io.IOException;

/**
 * @author Mathias Lux, [e-mail]
 *         Date: 01.04.2004
 *         Time: 13:57:32
 */

public class SplashScreen extends JDialog {
    private JTextArea text;
    private JButton okay, cancel;
    private JCheckBox accept;

    public static final String LICENSE_ACCEPTED_FILENAME = "license.properties";

    private static String license = "This program is part of Caliph & Emir.\n" +
            "\n" +
            "Caliph & Emir is free software; you can redistribute it and/or modify\n" +
            "it under the terms of the GNU General Public License as published by\n" +
            "the Free Software Foundation; either version 2 of the License, or\n" +
            "(at your option) any later version.\n" +
            "\n" +
            "Caliph & Emir is distributed in the hope that it will be useful,\n" +
            "but WITHOUT ANY WARRANTY; without even the implied warranty of\n" +
            "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n" +
            "GNU General Public License for more details.\n" +
            "\n" +
            "You should have received a copy of the GNU General Public License\n" +
            "along with Caliph & Emir; if not, write to the Free Software\n" +
            "Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA\n" +
            "-------------------------------------------------------------------------\n\n" + 
            "\t\t    GNU GENERAL PUBLIC LICENSE\n" +
            "\t\t       Version 2, June 1991\n" +
            "\n" +
            " Copyright (C) 1989, 1991 Free Software Foundation, Inc.\n" +
            " 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA\n" +
            " Everyone is permitted to copy and distribute verbatim copies\n" +
            " of this license document, but changing it is not allowed.\n" +
            "\n" +
            "\t\t\t    Preamble\n" +
            "\n" +
            "  The licenses for most software are designed to take away your\n" +
            "freedom to share and change it.  By contrast, the GNU General Public\n" +
            "License is intended to guarantee your freedom to share and change free\n" +
            "software--to make sure the software is free for all its users.  This\n" +
            "General Public License applies to most of the Free Software\n" +
            "Foundation's software and to any other program whose authors commit to\n" +
            "using it.  (Some other Free Software Foundation software is covered by\n" +
            "the GNU Library General Public License instead.)  You can apply it to\n" +
            "your programs, too.\n" +
            "\n" +
            "  When we speak of free software, we are referring to freedom, not\n" +
            "price.  Our General Public Licenses are designed to make sure that you\n" +
            "have the freedom to distribute copies of free software (and charge for\n" +
            "this service if you wish), that you receive source code or can get it\n" +
            "if you want it, that you can change the software or use pieces of it\n" +
            "in new free programs; and that you know you can do these things.\n" +
            "\n" +
            "  To protect your rights, we need to make restrictions that forbid\n" +
            "anyone to deny you these rights or to ask you to surrender the rights.\n" +
            "These restrictions translate to certain responsibilities for you if you\n" +
            "distribute copies of the software, or if you modify it.\n" +
            "\n" +
            "  For example, if you distribute copies of such a program, whether\n" +
            "gratis or for a fee, you must give the recipients all the rights that\n" +
            "you have.  You must make sure that they, too, receive or can get the\n" +
            "source code.  And you must show them these terms so they know their\n" +
            "rights.\n" +
            "\n" +
            "  We protect your rights with two steps: (1) copyright the software, and\n" +
            "(2) offer you this license which gives you legal permission to copy,\n" +
            "distribute and/or modify the software.\n" +
            "\n" +
            "  Also, for each author's protection and ours, we want to make certain\n" +
            "that everyone understands that there is no warranty for this free\n" +
            "software.  If the software is modified by someone else and passed on, we\n" +
            "want its recipients to know that what they have is not the original, so\n" +
            "that any problems introduced by others will not reflect on the original\n" +
            "authors' reputations.\n" +
            "\n" +
            "  Finally, any free program is threatened constantly by software\n" +
            "patents.  We wish to avoid the danger that redistributors of a free\n" +
            "program will individually obtain patent licenses, in effect making the\n" +
            "program proprietary.  To prevent this, we have made it clear that any\n" +
            "patent must be licensed for everyone's free use or not licensed at all.\n" +
            "\n" +
            "  The precise terms and conditions for copying, distribution and\n" +
            "modification follow.\n" +
            "\f\n" +
            "\t\t    GNU GENERAL PUBLIC LICENSE\n" +
            "   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION\n" +
            "\n" +
            "  0. This License applies to any program or other work which contains\n" +
            "a notice placed by the copyright holder saying it may be distributed\n" +
            "under the terms of this General Public License.  The \"Program\", below,\n" +
            "refers to any such program or work, and a \"work based on the Program\"\n" +
            "means either the Program or any derivative work under copyright law:\n" +
            "that is to say, a work containing the Program or a portion of it,\n" +
            "either verbatim or with modifications and/or translated into another\n" +
            "language.  (Hereinafter, translation is included without limitation in\n" +
            "the term \"modification\".)  Each licensee is addressed as \"you\".\n" +
            "\n" +
            "Activities other than copying, distribution and modification are not\n" +
            "covered by this License; they are outside its scope.  The act of\n" +
            "running the Program is not restricted, and the output from the Program\n" +
            "is covered only if its contents constitute a work based on the\n" +
            "Program (independent of having been made by running the Program).\n" +
            "Whether that is true depends on what the Program does.\n" +
            "\n" +
            "  1. You may copy and distribute verbatim copies of the Program's\n" +
            "source code as you receive it, in any medium, provided that you\n" +
            "conspicuously and appropriately publish on each copy an appropriate\n" +
            "copyright notice and disclaimer of warranty; keep intact all the\n" +
            "notices that refer to this License and to the absence of any warranty;\n" +
            "and give any other recipients of the Program a copy of this License\n" +
            "along with the Program.\n" +
            "\n" +
            "You may charge a fee for the physical act of transferring a copy, and\n" +
            "you may at your option offer warranty protection in exchange for a fee.\n" +
            "\n" +
            "  2. You may modify your copy or copies of the Program or any portion\n" +
            "of it, thus forming a work based on the Program, and copy and\n" +
            "distribute such modifications or work under the terms of Section 1\n" +
            "above, provided that you also meet all of these conditions:\n" +
            "\n" +
            "    a) You must cause the modified files to carry prominent notices\n" +
            "    stating that you changed the files and the date of any change.\n" +
            "\n" +
            "    b) You must cause any work that you distribute or publish, that in\n" +
            "    whole or in part contains or is derived from the Program or any\n" +
            "    part thereof, to be licensed as a whole at no charge to all third\n" +
            "    parties under the terms of this License.\n" +
            "\n" +
            "    c) If the modified program normally reads commands interactively\n" +
            "    when run, you must cause it, when started running for such\n" +
            "    interactive use in the most ordinary way, to print or display an\n" +
            "    announcement including an appropriate copyright notice and a\n" +
            "    notice that there is no warranty (or else, saying that you provide\n" +
            "    a warranty) and that users may redistribute the program under\n" +
            "    these conditions, and telling the user how to view a copy of this\n" +
            "    License.  (Exception: if the Program itself is interactive but\n" +
            "    does not normally print such an announcement, your work based on\n" +
            "    the Program is not required to print an announcement.)\n" +
            "\f\n" +
            "These requirements apply to the modified work as a whole.  If\n" +
            "identifiable sections of that work are not derived from the Program,\n" +
            "and can be reasonably considered independent and separate works in\n" +
            "themselves, then this License, and its terms, do not apply to those\n" +
            "sections when you distribute them as separate works.  But when you\n" +
            "distribute the same sections as part of a whole which is a work based\n" +
            "on the Program, the distribution of the whole must be on the terms of\n" +
            "this License, whose permissions for other licensees extend to the\n" +
            "entire whole, and thus to each and every part regardless of who wrote it.\n" +
            "\n" +
            "Thus, it is not the intent of this section to claim rights or contest\n" +
            "your rights to work written entirely by you; rather, the intent is to\n" +
            "exercise the right to control the distribution of derivative or\n" +
            "collective works based on the Program.\n" +
            "\n" +
            "In addition, mere aggregation of another work not based on the Program\n" +
            "with the Program (or with a work based on the Program) on a volume of\n" +
            "a storage or distribution medium does not bring the other work under\n" +
            "the scope of this License.\n" +
            "\n" +
            "  3. You may copy and distribute the Program (or a work based on it,\n" +
            "under Section 2) in object code or executable form under the terms of\n" +
            "Sections 1 and 2 above provided that you also do one of the following:\n" +
            "\n" +
            "    a) Accompany it with the complete corresponding machine-readable\n" +
            "    source code, which must be distributed under the terms of Sections\n" +