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Java Forum / First Aid / April 2008

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CardLayout() not working

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michael.miceli88@gmail.com - 24 Apr 2008 20:18 GMT
I am trying to get it to where if the user selects new it will change
the panel, but it isn't working at all.  Nothing changes, but I know
the event method is getting called, because of a print statment.

[code]
private void jMenuItemNewActionPerformed(java.awt.event.ActionEvent
evt) {
       java.awt.CardLayout cl = (CardLayout)jPanelMain.getLayout();
       String path = "jPanelPagePageWelcome";
       cl.show(jPanelMain,path);
       System.out.println(path);
   }
[/code]
That is where I try to use the cardlayout.  The rest of the code is
below

[code]
/*
* Tester.java
*
* Created on April 23, 2008, 4:09 PM
*/
package Tournament;
import java.io.*;
import javax.swing.*;
import java.awt.*;
/**
*
* @author  michael
*/
public class Tester extends javax.swing.JFrame {

   /**
    * Creates new form Tester
    */
   public Tester() {
       initComponents();
   }

   /** This method is called from within the constructor to
    * initialize the form.
    * WARNING: Do NOT modify this code. The content of this method is
    * always regenerated by the Form Editor.
    */
   // <editor-fold defaultstate="collapsed" desc=" Generated Code
">
   private void initComponents() {
       jPanelMain = new javax.swing.JPanel();
       jPanelPageWelcome = new javax.swing.JPanel();
       jLabelWelcomeMessage = new javax.swing.JLabel();
       jPanelPageNew = new javax.swing.JPanel();
       jButton1 = new javax.swing.JButton();
       jTextField1 = new javax.swing.JTextField();
       jLabel1 = new javax.swing.JLabel();
       jLabel2 = new javax.swing.JLabel();
       jRadioButton1 = new javax.swing.JRadioButton();
       jRadioButton2 = new javax.swing.JRadioButton();
       jMenuBar1 = new javax.swing.JMenuBar();
       jMenuFile = new javax.swing.JMenu();
       jMenuItemNew = new javax.swing.JMenuItem();
       jMenuItemLoad = new javax.swing.JMenuItem();
       jMenuItemSave = new javax.swing.JMenuItem();
       jSeparatorFileMenu = new javax.swing.JSeparator();
       jMenuItemExit = new javax.swing.JMenuItem();
       jMenuHelp = new javax.swing.JMenu();
       jMenuItemAbout = new javax.swing.JMenuItem();


setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
       setName("frameMain");
       jPanelMain.setLayout(new java.awt.CardLayout());


jPanelPageWelcome.setBorder(javax.swing.BorderFactory.createTitledBorder("Tournament
Generator"));

jLabelWelcomeMessage.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
       jLabelWelcomeMessage.setText("Tournament Generator");

       javax.swing.GroupLayout jPanelPageWelcomeLayout = new
javax.swing.GroupLayout(jPanelPageWelcome);
       jPanelPageWelcome.setLayout(jPanelPageWelcomeLayout);
       jPanelPageWelcomeLayout.setHorizontalGroup(

jPanelPageWelcomeLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
           .addGroup(jPanelPageWelcomeLayout.createSequentialGroup()
               .addGap(34, 34, 34)
               .addComponent(jLabelWelcomeMessage,
javax.swing.GroupLayout.PREFERRED_SIZE, 249,
javax.swing.GroupLayout.PREFERRED_SIZE)
               .addContainerGap(68, Short.MAX_VALUE))
       );
       jPanelPageWelcomeLayout.setVerticalGroup(

jPanelPageWelcomeLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
           .addGroup(jPanelPageWelcomeLayout.createSequentialGroup()
               .addGap(35, 35, 35)
               .addComponent(jLabelWelcomeMessage,
javax.swing.GroupLayout.PREFERRED_SIZE, 86,
javax.swing.GroupLayout.PREFERRED_SIZE)
               .addContainerGap(82, Short.MAX_VALUE))
       );
       jPanelMain.add(jPanelPageWelcome, "card2");

       jButton1.setText("Enter");

       jLabel1.setText("Enter name of Tournament");

       jLabel2.setText("Select Tournament Pairing Type");

       jRadioButton1.setText("Ordered");

jRadioButton1.setBorder(javax.swing.BorderFactory.createEmptyBorder(0,
0, 0, 0));
       jRadioButton1.setMargin(new java.awt.Insets(0, 0, 0, 0));

       jRadioButton2.setText("Random");

jRadioButton2.setBorder(javax.swing.BorderFactory.createEmptyBorder(0,
0, 0, 0));
       jRadioButton2.setMargin(new java.awt.Insets(0, 0, 0, 0));

       javax.swing.GroupLayout jPanelPageNewLayout = new
javax.swing.GroupLayout(jPanelPageNew);
       jPanelPageNew.setLayout(jPanelPageNewLayout);
       jPanelPageNewLayout.setHorizontalGroup(

jPanelPageNewLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
           .addGroup(javax.swing.GroupLayout.Alignment.TRAILING,
jPanelPageNewLayout.createSequentialGroup()
               .addContainerGap(283, Short.MAX_VALUE)
               .addComponent(jButton1)
               .addContainerGap())
           .addGroup(jPanelPageNewLayout.createSequentialGroup()
               .addGap(62, 62, 62)
               .addGroup(jPanelPageNewLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                   .addComponent(jLabel2)
                   .addGroup(jPanelPageNewLayout.createSequentialGroup()
                       .addGap(12, 12, 12)
                       .addComponent(jTextField1,
javax.swing.GroupLayout.PREFERRED_SIZE, 162,
javax.swing.GroupLayout.PREFERRED_SIZE))
                   .addComponent(jLabel1)
                   .addGroup(jPanelPageNewLayout.createSequentialGroup()
                       .addGap(12, 12, 12)
                       .addGroup(jPanelPageNewLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                           .addComponent(jRadioButton2)
                           .addComponent(jRadioButton1))))
               .addContainerGap(102, Short.MAX_VALUE))
       );
       jPanelPageNewLayout.setVerticalGroup(

jPanelPageNewLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
           .addGroup(javax.swing.GroupLayout.Alignment.TRAILING,
jPanelPageNewLayout.createSequentialGroup()
               .addGap(27, 27, 27)
               .addComponent(jLabel1)
               .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
               .addComponent(jTextField1,
javax.swing.GroupLayout.PREFERRED_SIZE,
javax.swing.GroupLayout.DEFAULT_SIZE,
javax.swing.GroupLayout.PREFERRED_SIZE)
               .addGap(24, 24, 24)
               .addComponent(jLabel2)
               .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
               .addComponent(jRadioButton1)
               .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
               .addComponent(jRadioButton2)
               .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED,
42, Short.MAX_VALUE)
               .addComponent(jButton1)
               .addContainerGap())
       );
       jPanelMain.add(jPanelPageNew, "card3");

       jMenuFile.setText("File");
       jMenuItemNew.setText("New");
       jMenuItemNew.addActionListener(new
java.awt.event.ActionListener() {
           public void actionPerformed(java.awt.event.ActionEvent
evt) {
               jMenuItemNewActionPerformed(evt);
           }
       });

       jMenuFile.add(jMenuItemNew);

       jMenuItemLoad.setText("Load");
       jMenuItemLoad.addActionListener(new
java.awt.event.ActionListener() {
           public void actionPerformed(java.awt.event.ActionEvent
evt) {
               jMenuItemLoadActionPerformed(evt);
           }
       });

       jMenuFile.add(jMenuItemLoad);

       jMenuItemSave.setText("Save");
       jMenuItemSave.setEnabled(false);
       jMenuItemSave.addActionListener(new
java.awt.event.ActionListener() {
           public void actionPerformed(java.awt.event.ActionEvent
evt) {
               jMenuItemSaveActionPerformed(evt);
           }
       });

       jMenuFile.add(jMenuItemSave);

       jMenuFile.add(jSeparatorFileMenu);

       jMenuItemExit.setText("Exit");
       jMenuItemExit.addActionListener(new
java.awt.event.ActionListener() {
           public void actionPerformed(java.awt.event.ActionEvent
evt) {
               jMenuItemExitActionPerformed(evt);
           }
       });

       jMenuFile.add(jMenuItemExit);

       jMenuBar1.add(jMenuFile);

       jMenuHelp.setText("Help");
       jMenuItemAbout.setText("About");
       jMenuItemAbout.addActionListener(new
java.awt.event.ActionListener() {
           public void actionPerformed(java.awt.event.ActionEvent
evt) {
               jMenuItemAboutActionPerformed(evt);
           }
       });

       jMenuHelp.add(jMenuItemAbout);

       jMenuBar1.add(jMenuHelp);

       setJMenuBar(jMenuBar1);

       javax.swing.GroupLayout layout = new
javax.swing.GroupLayout(getContentPane());
       getContentPane().setLayout(layout);
       layout.setHorizontalGroup(

layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
           .addComponent(jPanelMain,
javax.swing.GroupLayout.Alignment.TRAILING,
javax.swing.GroupLayout.DEFAULT_SIZE, 333, Short.MAX_VALUE)
       );
       layout.setVerticalGroup(

layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
           .addGroup(javax.swing.GroupLayout.Alignment.TRAILING,
layout.createSequentialGroup()
               .addContainerGap(20, Short.MAX_VALUE)
               .addComponent(jPanelMain,
javax.swing.GroupLayout.PREFERRED_SIZE, 225,
javax.swing.GroupLayout.PREFERRED_SIZE))
       );
       pack();
   }// </editor-fold>

    private void
jMenuItemNewActionPerformed(java.awt.event.ActionEvent evt)
{
       java.awt.CardLayout cl = (CardLayout)jPanelMain.getLayout();
       String path = "jPanelPagePageWelcome";
       cl.show(jPanelMain,path);
       System.out.println(path);
   }

   private void
jMenuItemAboutActionPerformed(java.awt.event.ActionEvent evt)
{
       javax.swing.JFrame jFrameAbout = new
javax.swing.JFrame("About");
       javax.swing.JLabel jLabel1 = new
javax.swing.JLabel("<html>Created by:  <br>" +
               "Chris Miceli<br>Will Folse<br>Michael Miceli<p>CSC
3380</html>");
       jFrameAbout.setMinimumSize(new Dimension(300,150));
       Point p1 = jPanelMain.getLocation();
       jFrameAbout.setLocation((int)p1.getX()+100,(int)p1.getY()
+100);

jLabel1.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
       jFrameAbout.getContentPane().add(jLabel1);
       jFrameAbout.pack();
       jFrameAbout.setVisible(true);
       /**/
   }

   private void
jMenuItemSaveActionPerformed(java.awt.event.ActionEvent evt)
{
       jFileChooser1 = new javax.swing.JFileChooser();

setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
       int retval = jFileChooser1.showSaveDialog(Tester.this);
       if (retval == jFileChooser1.APPROVE_OPTION) {
           file = jFileChooser1.getSelectedFile();
       }
       System.out.println("File name is " + file.toString());
   }

   private void
jMenuItemExitActionPerformed(java.awt.event.ActionEvent evt)
{
       this.dispose();
   }

   private void
jMenuItemLoadActionPerformed(java.awt.event.ActionEvent evt)
{
       jFileChooser1 = new javax.swing.JFileChooser();

setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
       int retval = jFileChooser1.showOpenDialog(Tester.this);
       if (retval == jFileChooser1.APPROVE_OPTION) {
           file = jFileChooser1.getSelectedFile();
       }
       System.out.println("File name is " + file.toString());
   }

   /**
    * @param args the command line arguments
    */
   public static void main(String args[]) {
       java.awt.EventQueue.invokeLater(new Runnable() {
           public void run() {
               new Tester().setVisible(true);
           }
       });
   }

   private File file;
   private javax.swing.JFileChooser jFileChooser1;
   // Variables declaration - do not modify
   private javax.swing.JButton jButton1;
   private javax.swing.JLabel jLabel1;
   private javax.swing.JLabel jLabel2;
   private javax.swing.JLabel jLabelWelcomeMessage;
   private javax.swing.JMenuBar jMenuBar1;
   private javax.swing.JMenu jMenuFile;
   private javax.swing.JMenu jMenuHelp;
   private javax.swing.JMenuItem jMenuItemAbout;
   private javax.swing.JMenuItem jMenuItemExit;
   private javax.swing.JMenuItem jMenuItemLoad;
   private javax.swing.JMenuItem jMenuItemNew;
   private javax.swing.JMenuItem jMenuItemSave;
   private javax.swing.JPanel jPanelMain;
   private javax.swing.JPanel jPanelPageNew;
   private javax.swing.JPanel jPanelPageWelcome;
   private javax.swing.JRadioButton jRadioButton1;
   private javax.swing.JRadioButton jRadioButton2;
   private javax.swing.JSeparator jSeparatorFileMenu;
   private javax.swing.JTextField jTextField1;
   // End of variables declaration

}
[/code]
A. Bolmarcich - 24 Apr 2008 22:11 GMT
> I am trying to get it to where if the user selects new it will change
> the panel, but it isn't working at all.  Nothing changes, but I know
[quoted text clipped - 11 lines]
> That is where I try to use the cardlayout.  The rest of the code is
> below

In the snipped code there were statements like

       jPanelMain.add(jPanelPageWelcome, "card2");
       jPanelMain.add(jPanelPageNew, "card3");

that added panels with tags "card2" and "card3", but a panel with
the tag "jPanelPagePageWelcome" was not added.
michael.miceli88@gmail.com - 25 Apr 2008 04:24 GMT
On Apr 24, 4:11 pm, "A. Bolmarcich" <agge...@earl-grey.cloud9.net>
wrote:

> > I am trying to get it to where if the user selects new it will change
> > the panel, but it isn't working at all.  Nothing changes, but I know
[quoted text clipped - 19 lines]
> that added panels with tags "card2" and "card3", but a panel with
> the tag "jPanelPagePageWelcome" was not added.

Thank you!  This solved my problem.  I didn't see that because
Netbeans dealt with it for me!
michael.miceli88@gmail.com - 25 Apr 2008 04:34 GMT
On Apr 24, 4:11 pm, "A. Bolmarcich" <agge...@earl-grey.cloud9.net>
wrote:

> > I am trying to get it to where if the user selects new it will change
> > the panel, but it isn't working at all.  Nothing changes, but I know
[quoted text clipped - 19 lines]
> that added panels with tags "card2" and "card3", but a panel with
> the tag "jPanelPagePageWelcome" was not added.

Thank you!  This solved my problem.  I didn't see that because
Netbeans dealt with it for me!


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