Split Pane not working

[Suman Mummaneni]

Hi guys,

I was trying to implement a Split panel using a list box on the left and 3 differnet panels on the right I was not able to it I think the list event is not registered or its not firing

  
public void valueChanged(ListSelectionEvent evt) {
 
        if(evt.getValueIsAdjusting())
            return;
 
        JList newList = (JList)evt.getSource();
        if(newList.isSelectionEmpty()) {
            rgtPanel = new JPanel(null);
        }
        else {
            int index = newList.getSelectedIndex();
            if(index==0)
                rgtPanel = new PrintDeviceList();
            else if(index==1)
                rgtPanel = new PrintDeviceProperties();
            else if(index==2)
                rgtPanel = new PrintAlarms();
        }
    }

so I tried the old S.o.p trick also with a new addition but still did not work but I was able to get the S.o.p but not the right panel is not getting displayed

 
    /**
     *
     * Method specifies the action to be performed when the value
     * in the list is changed.
     */
    public void valueChanged(ListSelectionEvent evt) {
 
        if(evt.getValueIsAdjusting())
            return;
 
        JList newList = (JList)evt.getSource();
        if(newList.isSelectionEmpty()) {
            rgtPanel = new JPanel(null);
        }
        else {
            int index = newList.getSelectedIndex();
            if(index==0){
            System.out.println("Device List Selected");
                rgtPanel = new PrintDeviceList();
                mainPanel.setRightComponent(rgtPanel);
      }
            else if(index==1){
System.out.println("Device Properties Selected");
                rgtPanel = new PrintDeviceProperties();
                mainPanel.setRightComponent(rgtPanel);
}
            else if(index==2) {
System.out.println("Alarms Selected");
                rgtPanel = new PrintAlarms();
                mainPanel.setRightComponent(rgtPanel);
}
        }
    } 

I need some help on this
here is the complete code of the program

 /*
 * PrintDialog.java
 *
 * Created on February 28, 2005, 1:27 PM
 */
 
//package Test;
 
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.event.*;
 
/**
 *
 * @author smummane
 */
public class PrintDialog implements ListSelectionListener {
 
    /**
     *
     *Private members of the class
     */
    private JList selectionList;
    private JSplitPane mainPanel;
    private String [] listNames ={"Device List","Device Properties","Alarms"};
    private JScrollPane leftPane;
    private JScrollPane rightPane;
    private JPanel rgtPanel;
    private Dimension minSize = new Dimension(100,50);
    private Dimension prefSize = new Dimension(525,320);
 

 
    /** Creates a new instance of PrintDialog */
    public PrintDialog() {
 
        //initilise the list
        selectionList = new JList(listNames);
        selectionList.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
        selectionList.setSelectedIndex(0);
        selectionList.addListSelectionListener(this);
 
        //add the list to a scrollPane
        leftPane = new JScrollPane(selectionList);
        leftPane.setMinimumSize(minSize);
 
        //add the devicelist to the right pane
        rgtPanel = new JPanel();
        rgtPanel = new PrintDeviceList();
        rightPane = new JScrollPane(rgtPanel);
        rightPane.setMinimumSize(minSize);
 
        //creata splitpane and the scroll pane to it
        mainPanel = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT,leftPane,
                                   rightPane);
        mainPanel.setOneTouchExpandable(true);
        mainPanel.setDividerLocation(150);
        mainPanel.setPreferredSize(prefSize);
 
    }
 
    /**
     *
     * Method specifies the action to be performed when the value
     * in the list is changed.
     */
    public void valueChanged(ListSelectionEvent evt) {
 
        if(evt.getValueIsAdjusting())
            return;
 
        JList newList = (JList)evt.getSource();
        if(newList.isSelectionEmpty()) {
            rgtPanel = new JPanel(null);
        }
        else {
            int index = newList.getSelectedIndex();
            if(index==0){
            System.out.println("Device List Selected");
                rgtPanel = new PrintDeviceList();
                mainPanel.setRightComponent(rgtPanel);
      }
            else if(index==1){
System.out.println("Device Properties Selected");
                rgtPanel = new PrintDeviceProperties();
                mainPanel.setRightComponent(rgtPanel);
}
            else if(index==2) {
System.out.println("Alarms Selected");
                rgtPanel = new PrintAlarms();
                mainPanel.setRightComponent(rgtPanel);
}
        }
    }
 
    private static void create(){
 
        try {
            UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
        }
        catch(Exception e) {
            e.printStackTrace();
        }
        JFrame.setDefaultLookAndFeelDecorated(true);
        JDialog.setDefaultLookAndFeelDecorated(true);
 
        //creat the frame
        JFrame frame = new JFrame("EDT Print Dialog");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        PrintDialog pd = new PrintDialog();
        frame.setContentPane(pd.mainPanel);
        //Display the window
        frame.pack();
        frame.setVisible(true);
    }
 
    public static void main(String args[]) {
        SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                create();
            }
        }
       );
    }
 
}
 

/*
 * PrintDeviceProperties.java
 *
 * Created on February 28, 2005, 12:35 PM
 */
 
//package Test;
 
/**
 *
 * @author  smummane
 */
 class PrintDeviceProperties extends javax.swing.JPanel {
 
    /** Creates new form PrintDeviceProperties */
    public PrintDeviceProperties() {
        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.
     */
    private void initComponents() {//GEN-BEGIN:initComponents
        jPanel1 = new javax.swing.JPanel();
        jLabel1 = new javax.swing.JLabel();
        fromIP = new javax.swing.JTextField();
        jLabel2 = new javax.swing.JLabel();
        toIP = new javax.swing.JTextField();
        chooseAll = new javax.swing.JRadioButton();
        jPanel2 = new javax.swing.JPanel();
        jCheckBox1 = new javax.swing.JCheckBox();
        jCheckBox2 = new javax.swing.JCheckBox();
        jCheckBox3 = new javax.swing.JCheckBox();
        jCheckBox4 = new javax.swing.JCheckBox();
        jCheckBox5 = new javax.swing.JCheckBox();
        jCheckBox6 = new javax.swing.JCheckBox();
        jButton1 = new javax.swing.JButton();
        jButton2 = new javax.swing.JButton();
 
        setLayout(null);
 
        jPanel1.setLayout(null);
 
        jPanel1.setBorder(new javax.swing.border.TitledBorder("Choose Device"));
        jLabel1.setText("From:");
        jPanel1.add(jLabel1);
        jLabel1.setBounds(13, 20, 30, 20);
 
        jPanel1.add(fromIP);
        fromIP.setBounds(50, 20, 90, 19);
 
        jLabel2.setText("To:");
        jPanel1.add(jLabel2);
        jLabel2.setBounds(153, 20, 20, 20);
 
        jPanel1.add(toIP);
        toIP.setBounds(180, 20, 90, 19);
 
        chooseAll.setText("Choose All Devices");
        jPanel1.add(chooseAll);
        chooseAll.setBounds(20, 60, 130, 23);
 
        add(jPanel1);
        jPanel1.setBounds(0, 0, 300, 100);
 
        jPanel2.setLayout(null);
 
        jPanel2.setBorder(new javax.swing.border.TitledBorder("Select Properties"));
        jCheckBox1.setSelected(true);
        jCheckBox1.setText("Static Properties");
        jPanel2.add(jCheckBox1);
        jCheckBox1.setBounds(10, 90, 103, 23);
 
        jCheckBox2.setText("SNMP Properties");
        jPanel2.add(jCheckBox2);
        jCheckBox2.setBounds(130, 30, 107, 23);
 
        jCheckBox3.setText("Mod Bus Properties");
        jPanel2.add(jCheckBox3);
        jCheckBox3.setBounds(130, 60, 117, 23);
 
        jCheckBox4.setText(" Derived Properties");
        jPanel2.add(jCheckBox4);
        jCheckBox4.setBounds(130, 90, 115, 23);
 
        jCheckBox5.setSelected(true);
        jCheckBox5.setText("General Properties");
        jPanel2.add(jCheckBox5);
        jCheckBox5.setBounds(10, 60, 113, 23);
 
        jCheckBox6.setText("All Properties");
        jPanel2.add(jCheckBox6);
        jCheckBox6.setBounds(10, 30, 87, 23);
 
        add(jPanel2);
        jPanel2.setBounds(0, 110, 300, 130);
 
        jButton1.setText("Ok");
        add(jButton1);
        jButton1.setBounds(160, 250, 71, 23);
 
        jButton2.setText("Cancel");
        add(jButton2);
        jButton2.setBounds(240, 250, 65, 23);
 
    }//GEN-END:initComponents
 

    // Variables declaration - do not modify//GEN-BEGIN:variables
    private javax.swing.JRadioButton chooseAll;
    private javax.swing.JTextField fromIP;
    private javax.swing.JButton jButton1;
    private javax.swing.JButton jButton2;
    private javax.swing.JCheckBox jCheckBox1;
    private javax.swing.JCheckBox jCheckBox2;
    private javax.swing.JCheckBox jCheckBox3;
    private javax.swing.JCheckBox jCheckBox4;
    private javax.swing.JCheckBox jCheckBox5;
    private javax.swing.JCheckBox jCheckBox6;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JLabel jLabel2;
    private javax.swing.JPanel jPanel1;
    private javax.swing.JPanel jPanel2;
    private javax.swing.JTextField toIP;
    // End of variables declaration//GEN-END:variables
     /**
     *
     *Method to change the look and feel and display
 
    private static void setLAF() {
        try {
            javax.swing.UIManager.setLookAndFeel(javax.swing.UIManager.getSystemLookAndFeelClassName());
        }
        catch(Exception e) {
            System.out.println("Can not set look and feel");
            e.printStackTrace();
        }
        javax.swing.JFrame.setDefaultLookAndFeelDecorated(true);
        javax.swing.JFrame frame = new javax.swing.JFrame ("Print Device Protperties");
        PrintDeviceProperties pdp = new PrintDeviceProperties();
        frame.setDefaultCloseOperation(javax.swing.JFrame.EXIT_ON_CLOSE);
        frame.setContentPane(pdp);
        frame.pack();
        frame.setVisible(true);
    }
    public static void main(String args[]) {
        javax.swing.SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                setLAF();
            }
        });
 
    }  */
}
 

 
/*
 * PrintDeviceList.java
 *
 * Created on February 28, 2005, 1:24 PM
 */
 
//package Test;
 
/**
 *
 * @author  smummane
 */
 class PrintDeviceList extends javax.swing.JPanel {
 
    /** Creates new form PrintDeviceList */
    public PrintDeviceList() {
        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.
     */
    private void initComponents() {//GEN-BEGIN:initComponents
        optionGroup = new javax.swing.ButtonGroup();
        jPanel1 = new javax.swing.JPanel();
        filterByIP = new javax.swing.JRadioButton();
        jTextPane1 = new javax.swing.JTextPane();
        jLabel1 = new javax.swing.JLabel();
        jLabel2 = new javax.swing.JLabel();
        jTextPane2 = new javax.swing.JTextPane();
        jPanel2 = new javax.swing.JPanel();
        filterByType = new javax.swing.JRadioButton();
        jComboBox1 = new javax.swing.JComboBox();
        jLabel3 = new javax.swing.JLabel();
        jPanel3 = new javax.swing.JPanel();
        printAll = new javax.swing.JRadioButton();
        jButton1 = new javax.swing.JButton();
        jButton2 = new javax.swing.JButton();
 
        setLayout(null);
 
        jPanel1.setLayout(null);
 
        jPanel1.setBorder(new javax.swing.border.TitledBorder("Filter by IP Address"));
        optionGroup.add(filterByIP);
        filterByIP.setText("Filter by IP Address");
        jPanel1.add(filterByIP);
        filterByIP.setBounds(10, 20, 130, 20);
 
        jPanel1.add(jTextPane1);
        jTextPane1.setBounds(50, 50, 90, 20);
 
        jLabel1.setText("From");
        jPanel1.add(jLabel1);
        jLabel1.setBounds(20, 50, 23, 20);
 
        jLabel2.setText("To");
        jPanel1.add(jLabel2);
        jLabel2.setBounds(150, 50, 20, 20);
 
        jPanel1.add(jTextPane2);
        jTextPane2.setBounds(180, 50, 120, 20);
 
        add(jPanel1);
        jPanel1.setBounds(10, 80, 350, 80);
 
        jPanel2.setLayout(null);
 
        jPanel2.setBorder(new javax.swing.border.TitledBorder("Filter by Device Type"));
        optionGroup.add(filterByType);
        filterByType.setText("Filter by Device Type");
        filterByType.setDoubleBuffered(true);
        jPanel2.add(filterByType);
        filterByType.setBounds(10, 20, 140, 23);
 
        jComboBox1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jComboBox1ActionPerformed(evt);
            }
        });
 
        jPanel2.add(jComboBox1);
        jComboBox1.setBounds(170, 50, 170, 22);
 
        jLabel3.setText("Choose the type of Device");
        jPanel2.add(jLabel3);
        jLabel3.setBounds(10, 50, 130, 20);
 
        add(jPanel2);
        jPanel2.setBounds(10, 170, 350, 100);
 
        jPanel3.setBorder(new javax.swing.border.TitledBorder("Print a List of all Devices"));
        optionGroup.add(printAll);
        printAll.setSelected(true);
        printAll.setText("Print All Devices on the Network");
        jPanel3.add(printAll);
 
        add(jPanel3);
        jPanel3.setBounds(10, 10, 350, 60);
 
        jButton1.setText("Ok");
        add(jButton1);
        jButton1.setBounds(200, 280, 80, 23);
 
        jButton2.setText("Cancel");
        add(jButton2);
        jButton2.setBounds(290, 280, 71, 23);
 
    }//GEN-END:initComponents
 
    private void jComboBox1ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jComboBox1ActionPerformed
        // TODO add your handling code here:
    }//GEN-LAST:event_jComboBox1ActionPerformed
 

    // Variables declaration - do not modify//GEN-BEGIN:variables
    private javax.swing.JRadioButton filterByIP;
    private javax.swing.JRadioButton filterByType;
    private javax.swing.JButton jButton1;
    private javax.swing.JButton jButton2;
    private javax.swing.JComboBox jComboBox1;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JLabel jLabel2;
    private javax.swing.JLabel jLabel3;
    private javax.swing.JPanel jPanel1;
    private javax.swing.JPanel jPanel2;
    private javax.swing.JPanel jPanel3;
    private javax.swing.JTextPane jTextPane1;
    private javax.swing.JTextPane jTextPane2;
    private javax.swing.ButtonGroup optionGroup;
    private javax.swing.JRadioButton printAll;
    // End of variables declaration//GEN-END:variables
 
}
 

 

/*
 * PrintAlarms.java
 *
 * Created on February 28, 2005, 1:16 PM
 */
 
//package Test;
 
/**
 *
 * @author  smummane
 */
 class PrintAlarms extends javax.swing.JPanel {
 
    /** Creates new form PrintAlarms */
    public PrintAlarms() {
        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.
     */
    private void initComponents() {//GEN-BEGIN:initComponents
        jPanel1 = new javax.swing.JPanel();
        jCheckBox1 = new javax.swing.JCheckBox();
        jButton1 = new javax.swing.JButton();
        jButton2 = new javax.swing.JButton();
 
        setLayout(null);
 
        jPanel1.setLayout(new javax.swing.BoxLayout(jPanel1, javax.swing.BoxLayout.X_AXIS));
 
        jPanel1.setBorder(new javax.swing.border.TitledBorder("Print Alarms"));
        jCheckBox1.setText("Print Alarms Snap Short View");
        jPanel1.add(jCheckBox1);
 
        add(jPanel1);
        jPanel1.setBounds(0, 0, 350, 140);
 
        jButton1.setText("Ok");
        add(jButton1);
        jButton1.setBounds(190, 210, 80, 23);
 
        jButton2.setText("Cancel");
        add(jButton2);
        jButton2.setBounds(280, 210, 80, 23);
 
    }//GEN-END:initComponents
 

    // Variables declaration - do not modify//GEN-BEGIN:variables
    private javax.swing.JButton jButton1;
    private javax.swing.JButton jButton2;
    private javax.swing.JCheckBox jCheckBox1;
    private javax.swing.JPanel jPanel1;
    // End of variables declaration//GEN-END:variables
 
    /* private static void setLAF() {
        try {
            javax.swing.UIManager.setLookAndFeel(javax.swing.UIManager.getSystemLookAndFeelClassName());
        }
        catch(Exception e) {
            System.out.println("Can not set look and feel");
            e.printStackTrace();
        }
        javax.swing.JFrame.setDefaultLookAndFeelDecorated(true);
        javax.swing.JFrame frame = new javax.swing.JFrame ("Print Alarms");
        //PrintDeviceProperties pdp = new PrintDeviceProperties();
        PrintAlarms pa = new PrintAlarms();
        frame.setDefaultCloseOperation(javax.swing.JFrame.EXIT_ON_CLOSE);
        frame.setContentPane(pa);
        frame.pack();
        frame.setVisible(true);
    }
    public static void main(String args[]) {
        javax.swing.SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                setLAF();
            }
        });
 
    }*/
}
 

-Suman

[Michael Dunn]

Works OK for me - win98SE, java 1.4.0

I click on any of the 3 items in the list, and the panel changes to what seems
to be the correct panel
Device List ---> panel with "Filter by IP Address"
Device Prop ---> panel with "Select Properties"
Alarms ---> panel with "Print Alarms"

[Pat Hays]

Works OK for me too - winXP, java 1.4.2

[Suman Mummaneni]

hi

it just did not work for me yesterday. I think my system need a hardware update or some thing like that. I am using JDK 1.5.0_01 which is the latest JRE and NetBeans 4.0 which is also the latest. I do not really know what went wrong. Any way thanks for running the code and responding

-Suman