aboutpanel.java

eq跨平台查询工具源码 eq跨平台查询工具源码

/*
 * AboutPanel.java
 *
 * Copyright (C) 2002, 2003, 2004, 2005, 2006 Takis Diakoumis
 *
 * 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 2
 * of the License, or 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 for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 */


package org.executequery.gui;

import java.awt.AlphaComposite;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.Font;
import java.awt.FontMetrics;
import java.awt.GradientPaint;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Image;
import java.awt.Insets;
import java.awt.RenderingHints;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.Timer;
import java.util.TimerTask;

import javax.swing.BorderFactory;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTabbedPane;
import org.executequery.Constants;
import org.underworldlabs.swing.actions.ActionBuilder;
import org.executequery.ActiveComponent;
import org.executequery.GUIUtilities;
import org.underworldlabs.swing.GUIUtils;
import org.underworldlabs.swing.HeapMemoryPanel;

/* ----------------------------------------------------------
 * CVS NOTE: Changes to the CVS repository prior to the 
 *           release of version 3.0.0beta1 has meant a 
 *           resetting of CVS revision numbers.
 * ----------------------------------------------------------
 */

/** 
 * System About panel.
 *
 * @author   Takis Diakoumis
 * @version  $Revision: 1.10 $
 * @date     $Date: 2006/09/06 09:30:58 $
 */
public class AboutPanel extends BaseDialog
                        implements ActiveComponent,
                                   ActionListener {
    
    public static final String TITLE = "About";
    public static final String FRAME_ICON = "Information16.gif";
    
    private JTabbedPane tabPane;
    private GridBagConstraints baseGBC;
    private HeapMemoryPanel heapPanel;
    private AboutImagePanel imagePanel;
    private ScrollingCreditsPanel creditsPanel;
    
    /** <p>Constructs a new instance. */
    public AboutPanel() {
        super(TITLE, true);
        try {
            jbInit();
        }
        catch (Exception e) {
            e.printStackTrace();
        }
    }
    
    /** <p>Initializes the state of this instance. */
    private void jbInit() throws Exception {
        tabPane = new JTabbedPane();
        tabPane.add("System", systemDetails());
        tabPane.add("Resources", systemResources());
        tabPane.add("License", license());
        tabPane.add("Credits", credits());
        
        imagePanel = new AboutImagePanel();
        
        JPanel basePanel = new JPanel(new BorderLayout());
        basePanel.setPreferredSize(new Dimension(350, 420));
        basePanel.add(imagePanel, BorderLayout.NORTH);
        basePanel.add(tabPane, BorderLayout.CENTER);
        basePanel.add(addButtonPanel(), BorderLayout.SOUTH);
        
        addDisplayComponentWithEmptyBorder(basePanel);
        setResizable(false);
        display();
    }
    
    private GridBagConstraints resetConstraints(GridBagConstraints gbc) {
        gbc.gridy = 1;
        gbc.gridx = 1;
        gbc.weightx = 1.0;
        gbc.weighty = 1.0;
        gbc.insets.top = 1;
        gbc.insets.bottom = 3;
        gbc.insets.left = 3;
        gbc.insets.right = 3;
        gbc.insets.top = 3;
        gbc.fill = GridBagConstraints.BOTH;
        gbc.anchor = GridBagConstraints.SOUTHEAST;
        return gbc;
    }
    
    private JPanel credits() {
        creditsPanel = new ScrollingCreditsPanel();
        JPanel main = new JPanel(new GridBagLayout());
        main.add(creditsPanel, resetConstraints(new GridBagConstraints()));
        return main;
    }
    
    private JPanel addButtonPanel() {
        JPanel buttonPanel = new JPanel(new GridBagLayout());
        buttonPanel.setPreferredSize(new Dimension(350, 50));
        
        JButton okButton = new JButton("OK");
        okButton.setPreferredSize(Constants.BUTTON_SIZE);

        GridBagConstraints gbc = new GridBagConstraints();
        Insets ins = new Insets(7,0,0,0);
        gbc.insets = ins;
        
        buttonPanel.add(okButton, gbc);        
        okButton.addActionListener(this);

        return buttonPanel;
    }

    public void dispose() {
        cleanup();
        super.dispose();
    }
    
    public void actionPerformed(ActionEvent e) {
        dispose();
    }

    public void cleanup() {
        if (imagePanel != null) {
            imagePanel.stopTimer();
        }
        imagePanel = null;

        if (creditsPanel != null) {
            creditsPanel.stopTimer();
        }
        creditsPanel = null;
        
        if (heapPanel != null) {
            heapPanel.stopTimer();
        }
        heapPanel = null;
    }
    
    private JPanel license() {
        JPanel base = new JPanel(new GridBagLayout());
        
        JLabel line1 = new JLabel("This is free software, and you are welcome to");
        JLabel line2 = new JLabel("redistribute it under certain conditions.");
        JLabel line3 = new JLabel("See the GNU General Public License for details.");
        
        JButton button = new JButton(ActionBuilder.get("license-command"));
        button.setText("View License");
        button.setIcon(null);
        
        base.setBorder(BorderFactory.createEtchedBorder());
        
        GridBagConstraints gbc = new GridBagConstraints();
        
        Insets ins = new Insets(5,5,5,5);
        gbc.gridx = 0;
        gbc.gridy = 1;
        gbc.insets = ins;
        base.add(line1, gbc);
        gbc.insets.top = 0;
        gbc.gridy = GridBagConstraints.RELATIVE;
        base.add(line2, gbc);
        gbc.gridy = 4;
        gbc.insets.top = 7;
        gbc.insets.left = 7;
        gbc.insets.right = 7;
        gbc.insets.bottom = 7;
        base.add(line3, gbc);
        gbc.gridy = 7;
        gbc.ipady = 5;
        base.add(button, gbc);
        
        JPanel main = new JPanel(new GridBagLayout());
        main.add(base, resetConstraints(gbc));
        
        return main;
    }
    
    
    private JPanel systemResources() {
        heapPanel = new HeapMemoryPanel();
        return heapPanel;
    }
    
    private JPanel systemDetails() {
        return new SystemPropertiesPanel();
        /*
        PropertyWrapperModel model = new PropertyWrapperModel(
                                            System.getProperties(), 
                                            PropertyWrapperModel.SORT_BY_KEY);

        JTable propsTable = new JTable(model);
        propsTable.getTableHeader().setReorderingAllowed(false);
        
        JScrollPane scroller = new JScrollPane(propsTable);
        scroller.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS);
        scroller.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);
        
        JPanel panel = new JPanel(new GridBagLayout());
        panel.add(scroller, resetConstraints(new GridBagConstraints()));
        
        return panel; */
    }
    
    class ScrollingCreditsPanel extends JPanel {
        
        private Timer timer;
        
        private Font nameFont;
        
        private Font titleFont;
        
        private String[] names = {"Takis Diakoumis",
                                  "Dragan Vasic",
                                  "Robert Stone",
                                  "Jeremy Pyman",
                                  "Mark Gordon"};
        
        private String[] titles = {"Original Developer",
                                   "Contributor",
                                   "Contributor",
                                   "Contributor",
                                   "DBA"};
        
        protected ScrollingCreditsPanel() {
            setBorder(BorderFactory.createEtchedBorder());
            nameFont = new Font("dialog", Font.BOLD, 12);
            titleFont = new Font("dialog", Font.PLAIN, 12);
            startTimer();
        }