WindowMessage.java

/*
 *  Copyright (C) 2014  Alfons Wirtz  
 *   website www.freerouting.net
 *
 *   This program 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 3 of the License, or
 *   (at your option) any later version.
 *
 *   This program 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 at <http://www.gnu.org/licenses/> 
 *   for more details.
 *
 * WindowMessage.java
 *
 * Created on 8. Dezember 2005, 06:20
 *
 */
package gui;

/**
 * Startup window visible when the program is loading.
 *
 * @author Alfons Wirtz
 */
public class WindowMessage extends javax.swing.JFrame
{

    /**
     * Displays a window with the input message at the center of the screen.
     */
    public static WindowMessage show(String p_message)
    {
        String[] message_arr = new String[1];
        message_arr[0] = p_message;
        return new WindowMessage(message_arr);
    }

    /**
     * Displays a window with the input messages at the center of the screen.
     */
    public static WindowMessage show(String[] p_messages)
    {
        return new WindowMessage(p_messages);
    }

    /**
     * Calls a confirm dialog. Returns true, if the user confirmed the action or if p_message is null.
     */
    public static boolean confirm(String p_message)
    {
        if (p_message == null)
        {
            return true;
        }

        int option = javax.swing.JOptionPane.showConfirmDialog(null, p_message, null, javax.swing.JOptionPane.YES_NO_OPTION);
        boolean result = option == javax.swing.JOptionPane.YES_OPTION;
        return result;
    }

    /**
     * Calls a dialog with an ok-button.
     */
    public static void ok(String p_message)
    {
        javax.swing.JOptionPane.showMessageDialog(null, p_message);
    }

    /**
     * Creates a new instance of WindowMessage
     */
    private WindowMessage(String[] p_message_arr)
    {
        final javax.swing.JPanel main_panel = new javax.swing.JPanel();
        final java.awt.GridBagLayout gridbag = new java.awt.GridBagLayout();
        main_panel.setLayout(gridbag);
        final java.awt.GridBagConstraints gridbag_constraints = new java.awt.GridBagConstraints();
        gridbag_constraints.insets = new java.awt.Insets(40, 40, 40, 40);
        gridbag_constraints.gridwidth = java.awt.GridBagConstraints.REMAINDER;
        for (int i = 0; i < p_message_arr.length; ++i)
        {
            final javax.swing.JLabel message_label = new javax.swing.JLabel();
            message_label.setText(p_message_arr[i]);

            gridbag.setConstraints(message_label, gridbag_constraints);
            main_panel.add(message_label, gridbag_constraints);
        }
        this.add(main_panel);
        this.pack();
        this.setLocation(500, 400);
        this.setVisible(true);
    }
}