GridBagLayout Issues

Hello All.
I'm having problems with this panel. I added a new instance of the
panel to three different Custom JDialogs that also contain another panel.
I have tested this panel in a JFrame, and it works there. However, in
my custom JDialogs, it seems like all of the componenets are rendered
to two differenet places at the same time and the components 'flicker'.
Also, the commented setLayout call ( BoxLayout) does not cause any
problem. Is there anything that I am missing here that someone
can help me with?
public static class ChromSelectionPanel extends JPanel implements
               ActionListener {
          private JList chromList;
          private JCheckBox selectAllCB;
          private JScrollPane scrollPane;
          private GridBagConstraints c = new GridBagConstraints();
          public ChromSelectionPanel(Dimension size) {
               super();
               this.setSize(size);
               this.setBorder(BorderFactory
                         .createTitledBorder("Chromosome Selection:"));
               this.setLayout(new GridBagLayout());
               //this.setLayout(new BoxLayout(this, BoxLayout.X_AXIS));
               c.insets = new Insets(2, 2, 2, 2);
               c.fill = GridBagConstraints.BOTH;
               selectAllCB = new JCheckBox("Select All");
               selectAllCB.addActionListener(this);
               c.gridx = 0;
               c.gridy = 0;
               c.anchor = GridBagConstraints.LINE_END;
               this.add(selectAllCB, c);
               JLabel or = new JLabel(" Or ");
               c.gridx = 1;
               c.gridy = 0;
               c.anchor = GridBagConstraints.LINE_START;
               this.add(or, c);
               String[] chromOptions = { "1", "2", "3", "4", "5", "6", "7", "8",
                         "9", "10", "11", "12", "13", "14", "15", "16", "17", "18",
                         "19", "20", "21", "22", "X", "Y" };
               chromList = new JList(chromOptions);
               chromList.setSize(10, 10);
               scrollPane = new JScrollPane(chromList);
               scrollPane.setSize(new Dimension(50, 50));
               JPanel scrollPaneHolder = new JPanel();
               scrollPaneHolder.add(scrollPane);
               c.gridx = 2;
               c.anchor = GridBagConstraints.LINE_START;
               this.add(scrollPaneHolder, c);
               JLabel tutorialLabel = new JLabel(
                         "<html><i>Use the SHIFT key to select multiple <br>"
                                   + " entries. Use the CTRL key to toggle <br> selections on and off.</i></html>");
               c.gridx = 3;
               this.add(tutorialLabel, c);
          public List<Integer> getSelectedChroms() {
               ArrayList<Integer> list = null;
               if (selectAllCB.isSelected()) {
                    list = new ArrayList<Integer>(24);
                    for (int i = 1; i < 25; i++) {
                         list.add(new Integer(i));
               } else {
                    for (Object o : chromList.getSelectedValues()) {
                         if (!o.toString().equalsIgnoreCase("X")
                                   && !o.toString().equalsIgnoreCase("Y"))
                              list.add(Integer.parseInt(o.toString()));
                         else if (o.toString().equalsIgnoreCase("x"))
                              list.add(new Integer(23));
                         else
                              list.add(new Integer(24));
               return list;
          public void actionPerformed(ActionEvent e) {
               System.out.println(e.getSource().toString());
               System.out.println();
               if (e.getSource() == selectAllCB) {
                    if (selectAllCB.isSelected()) {
                         chromList.setEnabled(false);
                         scrollPane.setEnabled(false);
                         scrollPane.getVerticalScrollBar().setEnabled(false);
                    } else {
                         System.out.println("Not selected");
                         chromList.setEnabled(true);
                         scrollPane.setEnabled(true);
                         scrollPane.getVerticalScrollBar().setEnabled(true);
     }Thanks for any insights, comments, help
d

hmm... still can't figure out what was causing the problem so I ended up
just switching to BoxLayout with some extra panels to get the
posistioning correct
d

Similar Messages

Swing Gridbaglayout manager issue

Help please!!!!!!!!!
I am converting a 1.3 application to 1.4 and when my window is first render the menubar is push down from the top of the window, causing it to not work properly. If I resize the window just a tad the window reformats it self and the menubar is properly aligned.
So what property or object did I forget to set when I was adding panes to the Jframe object?

Don't know why you think this is a GridBagLayout issue. The menubar should be added directly to the JFrame using the setJMenuBar(...) method.
If you need further help then you need to create a "Short, Self Contained, Compilable and Executable, Example Program (SSCCE)",
see http://homepage1.nifty.com/algafield/sscce.html,
that demonstrates the incorrect behaviour, because I can't guess exactly what you are doing based on the information provided.
Don't forget to use the "Code Formatting Tags",
see http://forum.java.sun.com/help.jspa?sec=formatting,
so the posted code retains its original formatting.

How to control the maximum size of a component in a GridBagLayout

Here is a small program that demonstrates my issue (it's originally from a big program that I couldn't attach here).
I have a GridBagLayout with some components in it. Some of the components are JEditorPane (displaying some HTML) within JPanel and are individally scrollable.
Here we go:
- when I resize the main panel, every components will resize accordingly to their weight (which is here the same for all of them): fine
- when I reduce the size of the main panel until it reaches all the preferred size of each component, the scrollPane of the main panel appears so that the user can scroll: not fine
The behaviour I'm looking for is: when I reduce the size of the main panel, when it reaches the preferred size of the components, I would like that the JEditorPane (which are in JPanel with BorderLayout/CENTER) display their individual scrollbars so that I can see all the JEditor panes at the same time without having to scroll the main window.
If the user continues to reduce the size of the main panel, then, at one point, display the scrollpane of the main panel.
See what I mean? How to control this?
Here is the code:
@SuppressWarnings("serial")
public final class CGridBagLayout2 extends JFrame {
     JPanel mainPanel;
     private final JScrollPane scrollPane;
     private JPanel panelize(Component component, String localization) {
          JPanel output = new JPanel(new BorderLayout());
          output.add(component, localization);
          return output;
    public void addComponentsToMainPanel() {
          mainPanel.setLayout(new GridBagLayout());
          GridBagConstraints c = new GridBagConstraints();
          c.weightx = 1.0;
          c.fill = GridBagConstraints.BOTH;
          String TEST_BIGTEXT = "<html><body><h2>Path</h2>toto/tutu/tata/TestN<h2>Prerequisites</h2>blah blah blah blah<br/><b>blah blah</b> blah blah\nblah blah <u>blah</u> blahblah blah blah<h2>Description</h2>blah blah blah blah<br/><b>blah blah</b> blah blah\nblah blah <u>blah</u> blahblah blah blah blah\nblah blah blah <br/>lah blah blah <br/>lah blah blah blah blah blah blah blah FIN</body></html>";
          for (int index=0; index<10; index++) {
               c.gridheight = 5; // nb Testcases for this test
               c.anchor = GridBagConstraints.FIRST_LINE_START; // align all the components top-left aligned
               c.gridy = index;
               JLabel a = new JLabel("AAAAA");
               c.gridx = 0;
               mainPanel.add(panelize(a, BorderLayout.NORTH), c);
               JLabel b = new JLabel("BBBBB");
               c.gridx = 1;
               mainPanel.add(panelize(b, BorderLayout.NORTH), c);
               JEditorPane d = new JEditorPane("text/html", TEST_BIGTEXT);
               c.gridx = 2;
               mainPanel.add(panelize(d, BorderLayout.CENTER), c);
               JEditorPane e = new JEditorPane("text/html", TEST_BIGTEXT);
               c.gridx = 3;
               mainPanel.add(panelize(e, BorderLayout.CENTER), c);
               index++;
     public CGridBagLayout2() {
          super("GridBagLayout");
          mainPanel = new JPanel();
          addComponentsToMainPanel();
          scrollPane = new JScrollPane(mainPanel);
          setContentPane(scrollPane);
     public static void main(String[] args) {
          Frame frame;
          WindowListener exitListener;
          exitListener = new WindowAdapter() {
               @Override
               public void windowClosing(WindowEvent e) {
                    Window window = e.getWindow();
                    window.setVisible(false);
                    window.dispose();
                    System.exit(0);
          frame = new CGridBagLayout2();
          frame.addWindowListener(exitListener);
          frame.setPreferredSize(new Dimension(1000, 800));
          frame.pack();
          frame.setVisible(true);
}Many thanks in advance, I'm getting crazy on this one :)

Ok, thanks for this information, I thought I had seen this happening in the past when embedding a component in the center area of a JPanel with BorderLayout.
Anyway, as I said I tested with JScrollPane as well and it does not change anything.
Here is the code modified:
@SuppressWarnings("serial")
public final class CGridBagLayout2 extends JFrame {
     JPanel mainPanel;
     private final JScrollPane scrollPane;
     private JPanel panelize(Component component, String localization) {
          JPanel output = new JPanel(new BorderLayout());
          output.add(component, localization);
          return output;
    public void addComponentsToMainPanel() {
          mainPanel.setLayout(new GridBagLayout());
          GridBagConstraints c = new GridBagConstraints();
          c.weightx = 1.0;
          c.fill = GridBagConstraints.BOTH;
          String TEST_BIGTEXT = "<html><body><h2>Path</h2>toto/tutu/tata/TestN<h2>Prerequisites</h2>blah blah blah blah<br/><b>blah blah</b> blah blah\nblah blah <u>blah</u> blahblah blah blah<h2>Description</h2>blah blah blah blah<br/><b>blah blah</b> blah blah\nblah blah <u>blah</u> blahblah blah blah blah\nblah blah blah <br/>lah blah blah <br/>lah blah blah blah blah blah blah blah FIN</body></html>";
          for (int index=0; index<10; index++) {
               c.gridheight = 5; // nb Testcases for this test
               c.anchor = GridBagConstraints.FIRST_LINE_START; // align all the components top-left aligned
               c.gridy = index;
               JLabel a = new JLabel("AAAAA");
               c.gridx = 0;
               mainPanel.add(panelize(a, BorderLayout.NORTH), c);
               JLabel b = new JLabel("BBBBB");
               c.gridx = 1;
               mainPanel.add(panelize(b, BorderLayout.NORTH), c);
               JEditorPane d = new JEditorPane("text/html", TEST_BIGTEXT);
               c.gridx = 2;
               mainPanel.add(panelize(new JScrollPane(d), BorderLayout.CENTER), c);
               JEditorPane e = new JEditorPane("text/html", TEST_BIGTEXT);
               c.gridx = 3;
               mainPanel.add(panelize(new JScrollPane(e), BorderLayout.CENTER), c);
     public CGridBagLayout2() {
          super("GridBagLayout");
          mainPanel = new JPanel();
          addComponentsToMainPanel();
          scrollPane = new JScrollPane(mainPanel);
          setContentPane(scrollPane);
     public static void main(String[] args) {
          Frame frame;
          WindowListener exitListener;
          exitListener = new WindowAdapter() {
               @Override
               public void windowClosing(WindowEvent e) {
                    Window window = e.getWindow();
                    window.setVisible(false);
                    window.dispose();
                    System.exit(0);
          frame = new CGridBagLayout2();
          frame.addWindowListener(exitListener);
          frame.setPreferredSize(new Dimension(1000, 800));
          frame.pack();
          frame.setVisible(true);
}Edited by: eric_gavaldo on Sep 15, 2010 2:18 PM

Layout manager issue.

I was hoping that someone could shed some light on why one layout manage will allow an applet to be inserted in a class that extends JFrame but not another.
Here is the guts of the problem I have an class that extends applet to display a pie chart. I then have a seperate class that extends JFrame that display two input boxes and a button. When the user enters two fields and clicks draw the pie chart displays working with the two numbers. The JFrame class that works uses the border layout. I change the class to use gridbag, and now only the textboxes display. Can anyone help. Here is the code for the three classes.
This is the applet class....
* File: PieChart.java
* PieChart class is an Swing applet that use a pie chart
* to show the percentage. It is used by PieChartExample
* to show what percetange of a payment actually goes to
* pay interest. There is no error handling in the program.
import java.awt.*;
import java.awt.event.*;
import java.awt.geom.*;
import javax.swing.*;
public class PieChart extends JApplet {
final static Color bg = Color.white;
final static Color fg = Color.black;
private double percent;
public void init() {
//Initialize drawing colors
setBackground(bg);
setForeground(fg);
percent = 1.0;
     public void setPercentage(double pct) {
          this.percent = pct;
public void paint(Graphics g) {
Graphics2D g2 = (Graphics2D) g;
g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
g2.setPaint(fg);
drawAnnotation(g2);
drawArc(g2, percent);
public void drawAnnotation(Graphics2D g2) {
          // draw a small green circle
          g2.setPaint(Color.green);
g2.fill(new Ellipse2D.Double(200, 200, 10,10));
// draw a small red circle
g2.setPaint(Color.red);
g2.fill(new Ellipse2D.Double(270, 200, 10, 10));
g2.setPaint(Color.black);
g2.drawString("Interest", 210, 210); // write "Interest" by green circle
g2.drawString("Principal", 280, 210); // write "Principal" by red circle
     public void drawArc(Graphics2D g2, double percent) {
// draw the interest portion
          g2.setPaint(Color.green);
          g2.fill(new Arc2D.Double(10,10,200,200, 0, percent * 360, Arc2D.PIE));
          // draw the rest (principal portion)
          g2.setPaint(Color.red);
          g2.fill(new Arc2D.Double(10,10,200,200, percent * 360, (1-percent)*360, Arc2D.PIE));
This is the JFrame class using Boarderlayout that works.
* File: PieChartExample.java
* The program demonstrate a simple use of pie chart. It takes total
* payment and interest paid from user input and draws a pie chart
* to show the percentage of interert to total payment. There is no
* error handling whatsoever in the example program, so you can see
* that it can be broken easily.
import java.awt.*;
import java.awt.event.*;
import java.awt.geom.*;
import javax.swing.*;
public class PieChartExample extends JFrame {
     final static int CHART_WIDTH = 800;
     final static int CHART_HEIGHT = 300;
     JPanel panel ;
     JLabel paymentLabel;
     JTextField paymentField;
     JLabel interestLabel;
     JTextField interestField;
     JButton show;
PieChart applet;
public PieChartExample() {
super("Pie Chart Example");
panel = new JPanel();
paymentLabel = new JLabel("Payment: $");
panel.add(paymentLabel);
paymentField = new JTextField(10);
panel.add(paymentField);
interestLabel = new JLabel("Interest: $");
panel.add(interestLabel);
interestField = new JTextField(10);
panel.add(interestField);
show = new JButton("Draw");
panel.add(show);
this.getContentPane().add("North", panel);
applet = new PieChart();
this.getContentPane().add("Center", applet);
show.addActionListener(new ActionListener() {
               public void actionPerformed(ActionEvent evt) {
                    double interest = Double.parseDouble(interestField.getText());
                    double payment = Double.parseDouble(paymentField.getText());
                    double percent = interest / payment;
                    //System.out.println("In event handler, percent is " + percent);
                    applet.setPercentage(percent);
                    applet.repaint();
private static void createAndShowGUI() {
PieChartExample f = new PieChartExample();
f.pack();
f.setSize(new Dimension(CHART_WIDTH ,CHART_HEIGHT));
f.show();
public static void main(String[] args) {
//Schedule a job for the event-dispatching thread:
//creating and showing this application's GUI.
javax.swing.SwingUtilities.invokeLater(new Runnable() {
public void run() {
createAndShowGUI();
This is the modified class to use GridBag that fails.
* File: PieChartExample2.java
* The program demonstrate a simple use of pie chart. It takes total
* payment and interest paid from user input and draws a pie chart
* to show the percentage of interert to total payment. There is no
* error handling whatsoever in the example program, so you can see
* that it can be broken easily.
import java.awt.*;
import java.awt.event.*;
import java.awt.geom.*;
import javax.swing.*;
public class PieChartExample2 extends JFrame {
     final static int CHART_WIDTH = 800;
     final static int CHART_HEIGHT = 300;
     JPanel panel ;
     JLabel paymentLabel;
     JTextField paymentField;
     JLabel interestLabel;
     JTextField interestField;
     JButton show;
PieChart applet;
public PieChartExample2() {
super("Pie Chart Example");
// Get container and set layout manager
Container contentPane = getContentPane();
GridBagLayout gridbag = new GridBagLayout();
GridBagConstraints c = new GridBagConstraints();
contentPane.setLayout(gridbag);
c.fill = GridBagConstraints.HORIZONTAL;
panel = new JPanel();
paymentLabel = new JLabel("Payment: $");
panel.add(paymentLabel);
paymentField = new JTextField(10);
panel.add(paymentField);
interestLabel = new JLabel("Interest: $");
panel.add(interestLabel);
interestField = new JTextField(10);
panel.add(interestField);
show = new JButton("Draw");
panel.add(show);
c.gridx = 0;
c.gridy = 0;
gridbag.setConstraints(panel, c);
contentPane.add(panel);
applet = new PieChart();
c.gridx = 0;
c.gridy = 1;
gridbag.setConstraints(applet, c);
contentPane.add(applet);
show.addActionListener(new ActionListener() {
               public void actionPerformed(ActionEvent evt) {
                    double interest = Double.parseDouble(interestField.getText());
                    double payment = Double.parseDouble(paymentField.getText());
                    double percent = interest / payment;
                    //System.out.println("In event handler, percent is " + percent);
                    applet.setPercentage(percent);
                    applet.repaint();
private static void createAndShowGUI() {
PieChartExample2 f = new PieChartExample2();
f.pack();
f.setSize(new Dimension(CHART_WIDTH ,CHART_HEIGHT));
f.show();
public static void main(String[] args) {
//Schedule a job for the event-dispatching thread:
//creating and showing this application's GUI.
javax.swing.SwingUtilities.invokeLater(new Runnable() {
public void run() {
createAndShowGUI();
}

Ok. It seems I may be wrong and that this may not be a concurrent call issue. I overode the components setBounds and setLocation methods and it appears that an external class is updating the position of these components while layoutContainer is attempting to position them. I can see that the correct positions are being set in the setBounds method, but this is happening after layoutContainer has called getLocation on the components. To be a little more specific, I am using a JLayeredPane to display some overlapping JLabels with images. I have implemented drag and drop on these labels so that dropping one on another swaps the images. The label positions and sizes are not being changed during the drop (I don't want them to move or resize just change images). However, for some reason I have yet to discover, two calls to set bounds are being made on the labels. The first call is relocating the label to the second labels position, the second call is relocating the label back to it's original position. If anyone has any insight on why the label position are changing when I am not explicitly repositioning them please reply. I will post another reply when I have corrected the problem or found a work around for it. I am awarding the dukes to tjacobs1 since he was the only responses I've had so far.

Small issue with custom table cell editor and unwanted table row selection

I'm using a custom table cell editor to display a JTree. Thing i notice is that when i select a value in the tree pop-up, the pop-up closes (as it should) but then every table row, from the editing row to the row behind the pop-up when i selected the value becomes highlighted. I'm thinking this is a focus issue, but it thought i took care of that. To clairfy, look at this: Before . Notice how the "Straightening" tree item is roughly above the "Stock Thickness" table row? When i select Straightening, this is what happens to my table: After .
My TreeComboBox component:
public class TreeComboBox extends JPanel implements MouseListener {
    private JTextField itemField;
    private TreeModel treeModel;
    private ArrayList<ActionListener> actionListeners = new ArrayList<ActionListener>();
    private Object selectedItem;
     * Creates a new <code>TreeComboBox</code> instance.
     * @param treeModel the tree model to be used in the drop-down selector.
    public TreeComboBox(TreeModel treeModel) {
        this(treeModel, null);
     * Creates a new <code>TreeComboBox</code> instance.
     * @param treeModel the tree model to be used in the drop-down selector.
     * @param selectedItem tree will expand and highlight this item.
    public TreeComboBox(TreeModel treeModel, Object selectedItem) {
        this.treeModel = treeModel;
        this.selectedItem = selectedItem;
        initComponents();
     * Returns the current drop-down tree model.
     * @return the current <code>TreeModel</code> instance.
    public TreeModel getTreeModel() {
        return treeModel;
     * Sets the tree model.
     * @param treeModel a <code>TreeModel</code> instance.
    public void setTreeModel(TreeModel treeModel) {
        this.treeModel = treeModel;
     * Returns the selected item from the drop-down selector.
     * @return the selected tree object.
    public Object getSelectedItem() {
        return selectedItem;
     * Sets the selected item in the drop-down selector.
     * @param selectedItem tree will expand and highlight this item.
    public void setSelectedItem(Object selectedItem) {
        this.selectedItem = selectedItem;
        String text = selectedItem != null ? selectedItem.toString() : "";
        itemField.setText(text);
        setToolTipText(text);
     * Overridden to enable/disable all child components.
     * @param enabled flat to enable or disable this component.
    public void setEnabled(boolean enabled) {
        itemField.setEnabled(enabled);
        super.setEnabled(enabled);
    public void addActionListener(ActionListener listener) {
        actionListeners.add(listener);
    public void removeActionListener(ActionListener listener) {
        actionListeners.remove(listener);
    // MouseListener implementation
    public void mouseClicked(MouseEvent e) {
    public void mouseEntered(MouseEvent e) {
    public void mouseExited(MouseEvent e) {
    public void mousePressed(MouseEvent e) {
    public void mouseReleased(MouseEvent e) {
        showPopup();
    private void initComponents() {
        setLayout(new GridBagLayout());
        itemField = new JTextField();
        itemField.setEditable(false);
        itemField.setText(selectedItem != null ? selectedItem.toString() : "");
        itemField.addMouseListener(this);
        add(itemField, new GridBagConstraints(0, 0, 1, 1, 1.0, 0.0,
                GridBagConstraints.WEST, GridBagConstraints.HORIZONTAL, new Insets(0, 0, 0, 0), 0, 0));
    private void showPopup() {
        final TreePopup popup = new TreePopup();
        final TreeComboBox tcb = this;
        final int x = itemField.getX();
        final int y = itemField.getY() + itemField.getHeight();
        int width = itemField.getWidth() + popupButton.getWidth();
        Dimension prefSize = popup.getPreferredSize();
        prefSize.width = width;
        popup.setPreferredSize(prefSize);
        SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                popup.show(tcb, x, y);
                popup.requestFocusInWindow();
    private void fireActionPerformed() {
        ActionEvent e = new ActionEvent(this, ActionEvent.ACTION_PERFORMED, "TreeComboBoxSelection");
        for (ActionListener listener : actionListeners) {
            listener.actionPerformed(e);
    private class TreePopup extends JPopupMenu {
        private JTree tree;
        private JScrollPane scrollPane;
        public TreePopup() {
            initComponents();
            initData();
        private void initData() {
            if (treeModel != null) {
                tree.setModel(treeModel);
        private void initComponents() {
            setFocusable(true);
            setFocusCycleRoot(true);
            tree = new JTree();
            tree.setRootVisible(false);
            tree.setShowsRootHandles(true);
            tree.setFocusable(true);
            tree.setFocusCycleRoot(true);
            tree.addTreeSelectionListener(new TreeSelectionListener() {
                public void valueChanged(TreeSelectionEvent e) {
                    tree_valueChanged(e);
            scrollPane = new JScrollPane(tree);
            add(scrollPane);
        private void tree_valueChanged(TreeSelectionEvent e) {
            DefaultMutableTreeNode node = (DefaultMutableTreeNode) tree.getLastSelectedPathComponent();
            setSelectedItem(node.getUserObject());
            fireActionPerformed();
            this.setVisible(false);
}My TreeComboBoxTableCellEditor:
public class TreeComboBoxTableCellEditor extends AbstractCellEditor implements TableCellEditor, ActionListener {
    protected TreeComboBox treeComboBox;
    protected ArrayList<CellEditorListener> cellEditorListeners = new ArrayList<CellEditorListener>();
    public TreeComboBoxTableCellEditor(TreeComboBox treeComboBox) {
        this.treeComboBox = treeComboBox;
        treeComboBox.addActionListener(this);
    public Object getCellEditorValue() {
        return treeComboBox.getSelectedItem();
    public Component getTableCellEditorComponent(JTable table, Object value, boolean isSelected, int row, int column) {
        treeComboBox.setSelectedItem(value);
        return treeComboBox;
    public void actionPerformed(ActionEvent e) {
        stopCellEditing();
}Any thoughts?
Edited by: MiseryMachine on Apr 3, 2008 1:21 PM
Edited by: MiseryMachine on Apr 3, 2008 1:27 PM

As I said, you have to have empty context elements before additional rows will be open for input.
For instance if you want to start with 5 rows available for input do the following to your internal table that you will bind:
data itab type standard table of sflight.
do 5 times.
append initial line to itab.
enddo.
context_node->bind_table( itab ).
The other option if you need n number of rows is to add a button to the table toolbar for adding more rows. When this button is pressed, you add a new context element to the node - thereby creating a new empty row in the table.

Facing problem while adding combobox using gridbaglayout

HI, I have used gridbaglayout in my panel. after adding the gridbaglayout, if i select long value combobox does't display all the value of the selected value. Why?
This is my code
cboPrioritySearchValue = new JComboBox();
cboPrioritySearchValue.setBackground(Color.white);
cboPrioritySearchValue.addItem("ALL");
cboPrioritySearchValue.addItem(Priority.NOT.getValue());
cboPrioritySearchValue.addItem(Priority.ONE.getValue());
cboPrioritySearchValue.addItem(Priority.TWO.getValue());
cboPrioritySearchValue.addItem(Priority.THREE.getValue());
cboPrioritySearchValue.addItem(Priority.FOUR.getValue());
setConstraints(gbc,gbc.WEST,gbc.NONE,2,1,2,8,new Insets(2,5,5,5),0,0,0,0);
gbl.setConstraints(cboPrioritySearchValue,gbc);
panel.add(cboPrioritySearchValue);This is my setConstraints method,
public GridBagConstraints setConstraints(GridBagConstraints gbc, int anchor,int fill,
                                             int gridw, int gridh, int gridx, int gridy,
                                             Insets insets, int ipadx, int ipady,
                                             int weightx, int weighty)
        gbc.anchor     = anchor;
        gbc.fill       = fill;
        gbc.gridwidth = gridw;
        gbc.gridheight = gridh;
        gbc.gridx      = gridx;
        gbc.gridy      = gridy;
        gbc.insets     = insets;
        gbc.ipadx      = ipadx;
        gbc.ipady      = ipady;
        gbc.weightx    = weightx;
        gbc.weighty    = weighty;
        return gbc;
    }Edited by: JavaHeroPrince on May 13, 2010 6:58 AM

Thanks Pete, hopefully its only a temporary problem.Short answer: It is (well ... hopefully).
Long answer: My server's dying regularly because all the connections fill up in CLOSE_WAIT states. This doesn't seem to have the same root cause as the reported bugs that I can find (issues with older JDKs) so I'm interested in investigating it beyond just upgrading everything to the latest and crossing my fingers. Unfortunately that will take time and I'm a bit pressed for spare time at the moment - so: my apologies; the domain is likely to be down until after the weekend at least.
After the weekend I'll re-target sscce.org (and .com and .net which I acquired a little while back) to a different server that's not suffering from the problem. Or if Andrew prefers I'll target a server under his control.

Character issues in read-only JTextArea

hi
i am using a JTextArea for displaying multi-line text. the component
has been set to read only and background color adjusted so it appears
more like a label. i am adding this component to container with
gridbaglayout and it has been given HORIZONTAL fill and weightx as 1.0
so space is not a constraint for the component as a whole.
the issue is i find some part of first character being chopped off.
for instance if the first character is 'W' then its slightly chopped
at the top-left corner. however for characters like 'T' it doesnt show
any issues (since width of 'T' is smaller than 'W').
however the problem is only with the first character, that also which
are relatively wider in size.
has anybody experienced this behavior before and how to resolve it.
thanks.
regards,
amey

I don't know why this is happening to you, but you could always try to change the margins of your JTextArea to allow a small buffer between the border of the JTextArea and the text that it contains. This can be adjusted using the setMargin(Insets m) method.
If this doesn't help, you may wish to post a small SSCCE - a small compilable program that demonstrates your problem. For more info on SSCCEs please look here:
[http://homepage1.nifty.com/algafield/sscce.html|http://homepage1.nifty.com/algafield/sscce.html]
Good luck.

BoxLayout vs GridBagLayout

Hi,
I heard that BoxLayout might be somehow deprecated or not recommended and whenever I have to layout a JPanel I should always prefer GridBagLayout - that's true? Why?

Oh Thanx, great flick!!
Where I'm from there's a saying a good horse jumps exactly as high as it needs to, well for me that's also a good rule for programming. But I know about the power and the issues you can have when working with GridbagLayout.
I started out and gave Gridbag a try but then I went back and caught experiences using other layout managers. But since I'm using a GUI builder, I rediscovered the Gridbag and now I think it's easy to handle when you work in combination with such a tool, without - it's a pain in the neck.
The resulting problem now for me was, working like that you really can do everything with Gridbag but it's also possible to avoid Gridbag completely using a mixture of the others. What I've heard is that Gridbag would be the future and the others would soon become obsolete - that's what I wondered.. am I the only guy who still works with other layout managers or are there others too, having the same probs. Now I think for my problem having a panel dynamically set up with elements in a BoxLayout (YAxis) style I'll use the Boxlayout and won't create a GridBag which behaves like Boxlayout.

Random Number Generator issues

Ok so I have an issue. I'm supposed to create a GUI app that has a frame that contains both a button and a textfield. When the button is pressed then a random number between 1 and 10 should appear in the textfield. I've got an illegal start of expression on line 49 which is the last private void...
So what have I done wrong?
* randomnumber.java
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.util.Random;
public class randomnumber extends JFrame
     Random randomObject = new Random();
// declare controls used
static JButton startButton = new JButton();
static JTextField startTextField = new JTextField();
public static void main(String args[])
    new randomnumber().show();
public randomnumber()
    // frame constructor
    setTitle("Random Number Generator");
    getContentPane().setLayout(new GridBagLayout());
    // add controls
    GridBagConstraints gridConstraints = new GridBagConstraints();
    startButton.setText("Generate a Number");
    gridConstraints.gridx = 0;
    gridConstraints.gridy = 0;
    getContentPane().add(startButton, gridConstraints);
    startButton.addActionListener(new ActionListener()
      public void actionPerformed(ActionEvent e)
        startButtonActionPerformed(e);
    startTextField.setText("");
    startTextField.setColumns(15);
    gridConstraints.gridx = 2;
    gridConstraints.gridy = 0;
    getContentPane().add(startTextField, new GridBagConstraints());
private void startButtonActionPerformed(ActionEvent e)
    myInt = randomObject.nextInt(11);
    startTextField.setText(String.valueOf(myInt));
}Edited by: Hessmix on Oct 17, 2007 6:15 PM

public randomnumber()
    // frame constructor
    setTitle("Random Number Generator");
    getContentPane().setLayout(new GridBagLayout());
    // add controls
    GridBagConstraints gridConstraints = new GridBagConstraints();
    startButton.setText("Generate a Number");
    gridConstraints.gridx = 0;
    gridConstraints.gridy = 0;
    getContentPane().add(startButton, gridConstraints);
    startButton.addActionListener(new ActionListener()
      public void actionPerformed(ActionEvent e)
        startButtonActionPerformed(e);
    startTextField.setText("");
    startTextField.setColumns(15);
    gridConstraints.gridx = 2;
    gridConstraints.gridy = 0;
    getContentPane().add(startTextField, new GridBagConstraints());
}//<< Add a brace here
private void startButtonActionPerformed(ActionEvent e)
    myInt = randomObject.nextInt(11);
    startTextField.setText(String.valueOf(myInt));
}Did you add that brace?

Fill space in panel with GridBagLayout

Hello,
I have a class that extends JPanel and uses a GridBagLayout.
I would like the contents of this panel to occupy the whole available space.
However, I don't find how to do it with GridBagLayout (I know this is automatically done with BorderLayout but I want to use GridBagLayout for organizing internal components).
I have this small program to show the problem.
In this example, how could the button fill all the available space with GridBagLayout?
Note that setting GridBagConstraints fill to BOTH doesn't solve the issue.
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.LayoutManager;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class TestBlankSpace {
    private static int x = 200;
    public static void main(String[] args) {
     testPanel(new BorderLayout(), BorderLayout.CENTER);
     testPanel(new GridBagLayout(), createGridBagConstraints());
    private static void testPanel(LayoutManager manager, Object constraints) {
     JPanel panel = new JPanel(manager);
     JButton button = new JButton("button");
     button.setBackground(Color.ORANGE);
     panel.setBackground(Color.WHITE);
     panel.add(button, constraints);
     JFrame window = new JFrame("Test Panels");
     window.add(panel);
     window.setLocation(x, 200);
     window.setSize(400, 300);
     window.setVisible(true);
     window.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
     x += 400;
    private static GridBagConstraints createGridBagConstraints() {
     GridBagConstraints c = new GridBagConstraints();
     c.fill = GridBagConstraints.BOTH;
     return c;
}Thank you

Hi,
For better understanding the grid bag layout read this tutorial :
[http://java.sun.com/docs/books/tutorial/uiswing/layout/gridbag.html|http://java.sun.com/docs/books/tutorial/uiswing/layout/gridbag.html]
Olek

JFrame Resize issue

Allo all.
I have a GUI that uses one JFrame and contains a Box layout of GridLayout and BoxLayout JPanels.
I have set Max, Min and Pref sizes for all the JPanels, which works perfectly, the Frame wont get smaller than the minimum size, and it loads at the preffered size.
However, expanding past the Max sizes leaves the components stranded top and center of the frame, with plenty of unwanted empty space.
Setting the JFrames max, min and pref sizes completely ruins all the others, allowing resizing to 0,0 size and full screen.
Any ideas? A quick look showed that I'd be able to extend JTable and do it that way some how, but I wasn't sure on the exact things I'd have to override.
Java 1.5 , and I know a fair bit about Java.

Extending the JTable class in order to solve layout problems is NOT THE WAY!!
You'd be asking for more trouble than you already have. Instead, consider using a combination of a GridBagLayout and some RigidArea
Box.createRigidArea(Dimension d] ,and perhaps some Glue- or Strut-components:
Box.createHorizontalGlue()
Box.createStrut(int width)
[ /code]
That should solve many layout issues....
dealing with GUI's == puzzeling around with layoutmanagers and components

GridBagLayout adding extra buttons on the second row

Here is a classic example of GridBagLayout taken from javadoc. I wonder is there a way I can have "Button6b", "Button6c" and "Button7" added to the same row as "Button6" and "Button6a"?
import java.awt.Button;
import java.awt.Font;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.WindowConstants;
public class ButtonsExample extends JPanel {
    protected void makebutton(String name, GridBagLayout gridbag, GridBagConstraints c) {
        Button button = new Button(name);
        gridbag.setConstraints(button, c);
        add(button);
    public void init() {
        GridBagLayout gridbag = new GridBagLayout();
        GridBagConstraints c = new GridBagConstraints();
        setFont(new Font("SansSerif", Font.PLAIN, 14));
        setLayout(gridbag);
        c.fill = GridBagConstraints.BOTH;
        c.weightx = 1.0;
        makebutton("Button1", gridbag, c);
        makebutton("Button2", gridbag, c);
        makebutton("Button3", gridbag, c);
        c.gridwidth = GridBagConstraints.REMAINDER; // end row
        makebutton("Button4", gridbag, c);
        c.weightx = 1.0;
        c.gridwidth = GridBagConstraints.RELATIVE; // next-to-last in row
        makebutton("Button6", gridbag, c);
        makebutton("Button6a", gridbag, c);
        makebutton("Button6b", gridbag, c); // I'd like this
        makebutton("Button6c", gridbag, c); // and this
        c.gridwidth = GridBagConstraints.REMAINDER; // end row
        makebutton("Button7", gridbag, c); // and this button to appear on one row
    public static void main(String args[]) {
        JFrame f = new JFrame("GridBag Layout Example");
        f.setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);
        ButtonsExample ex1 = new ButtonsExample();
        ex1.init();
        f.add("Center", ex1);
        f.pack();
        f.setSize(f.getPreferredSize());
        f.setVisible(true);
}

Welcome to our community, Kristi
As for why we aren't able to add buttons to Question Slides,
only the Captivate developers know the answer. Perhaps there is a
technical issue involved.
About the only thing I can think of would be to insert an
image of the buttons in a disabled state. At least that may provide
some consistency for you.
Cheers... Rick

New DVR Issues (First Run, Channel Switching, etc.)

I've spent the last 30 minutes trying to find answers through the search with no luck, so sorry if I missed something.
I recently switched to FIOS from RCN cable in New York. I've gone through trying to setup my DVR and am running into issues and was hoping for some answers.
1. I setup two programs to record at 8PM, I was watching another channel at the time and only half paying attention. Around 8:02 I noticed a message had popped up asking if I would like to switch channels to start recording. I was expecting it to force it to switch like my old DVR, but in this case it didn't switch and I missed the first two minutes of one of the shows. I typically leave my DVR on all day and just turn off the TV, this dual show handling will cause issues with that if I forget to turn off the DVR. Is there a setting I can change that will force the DVR to choose one of the recording channels?
2. I setup all my recordings for "First Run" because I only want to see the new episodes. One show I setup was The Daily Show on comedy central, which is shown weeknights at 11pm and repeated 3-4 times throughout the day. My scheduled recordings is showing all these as planned recordings even though only the 11pm show is really "new". Most of the shows I've setup are once a week so they aren't a problem, but this seems like it will quickly fill my DVR. Any fixes?
Thanks for the help.
Solved!
Go to Solution.

I came from RCN about a year ago. Fios is different in several ways, not all of them desirable. Here are several ways to get--and fix--unwanted recordings from a series recording setup.
Some general principles.
Saving changes. When you originally create a series with options, or if you go back to edit the options for an existing series, You MUST save the Series Options changes. Pretty much everywhere else in the user interface, when you change an option, the change takes effect immediately--but not in Series Options. Look at the Series Options window. Look at the far right side. There is a vertical "Save" bar, which you must navigate to and click OK on to actually save your changes. Exiting the Series Options window without having first saved your changes loses all your attempted changes--immediately.
Default Series Options. This is accessed from [Menu]--DVR--Settings--Default Series Options. This will bring up the series options that will automatically be applied to the creation of a NEW series. The options for every previously created series will not be affected by a subsequent modification of the Default Series Options. You should set these options to the way you would like them to be for the majority of series recordings that you are likely to create. Be sure to SAVE your changes. This is what you will get when you select "Create Series Recording" from the Guide. When creating a new series recording where you think that you may want options different from the default, select "Create Series with Options" instead. Series Options can always be changed for any individual series set up later--but not for all series at once.
Non-series recordings. With Fios you have no directly available options for these. With RCN and most other DVRs, you can change the start and end times for individual episodes, including individual episodes that are also in a series. With Fios, your workarounds are to create a series with options for a single program, then delete the series later; change the series options if the program is already in a series, then undo the changes you made to the series options later; or schedule recordings of the preceding and/or following shows as needed.
And now, to the unwanted repeats.
First, make sure your series options for the specific series in question--and not just the series default options--include "First Run Only". If not, fix that and SAVE. Then check you results by viewing the current options using the Series Manager app under the DVR menu.
Second, and most annoying, the Guide can have repeat programs on your channel tagged as "New". It happens. Set the series option "Air Time" to "Selected Time". To make this work correctly, you must have set up the original series recording after selecting the program in the Guide at the exact time of a first run showing (11pm, in your case), and not on a repeat entry in the Guide. Then, even it The Daily Show is tagged as New for repeat showings, these will be ignored.
Third, another channel may air reruns of the program in your series recording, and the first showing of a rerun episode on the other channel may be tagged as "New". These can be ignored in your series if you set the series option "Channel" to "Selected Channel". Related to this, if there is both an SD and HD channel broadcasting you series program, you will record them both if the series option "Duplicates" is set to "Yes". However, when the Channel option is set to "Selected Channel", the Duplicates Option is always effectively "No", regardless of what shows up on the options screen.
As for you missing two minutes, I have sereral instances in which two programs start recording at the same time. To the best of my recollection, whenever the warning message has appeared, ignoring it has not caused a loss of recording time. You might have an older software version. Newest is v.1.8. Look at Menu--Settings--System Info. Or, I might not have noticed the loss of minutes. I regularly see up to a minute of previous programming at the start of a recording, or a few missing seconds at the beginning or end of a recording. There are a lot of possibilities for that, but the DVR clock being incorrect is not one of them. With RCN, the DVR clocks occasionally drifted off by as much as a minute and a half.

Pension issue Mid Month Leaving

Dear All,
As per rule sustem should deduct mid month joining/leaving/absences or transfer scenarios, the Pension/PF Basis will be correspondingly prorated. But our system is not doing this. In RT table i have found 3FC Pension Basis for Er c 01/2010                    0.00           6,500.00.
Employee leaving date is 14.04.2010. system is picking pension amout as 541. Last year it was coming right.
Please suggest.
Ashwani

Dear Jayanti,
We required prorata basis pension in case of left employees and system is not doing this. This is the issue. As per our PF experts Pension amount should come on prorata basis for left employees in case they left mid of month.System is doing prorata basis last year but from this year it is deducting 541. I am giving two RT cases of different years.
RT table for year 2010. DOL 26.04.2010
/111 EPF Basis              01/2010                    0.00           8,750.00
/139 VPF Basis              01/2010                    0.00           8,750.00
/3F1 Ee PF contribution     01/2010                    0.00           1,050.00
/3F3 Er PF contribution     01/2010                    0.00             509.00
/3F5 Ee Mon PF contribution 01/2010                    0.00           1,050.00
/3F6 Ee Ann PF contribution 01/2010                    0.00          12,600.00
/3F9 PF adm chrgs * 1,00,00 01/2010                    0.00              96.25
/3FA PF basis for Ee contri 01/2010                    0.00           8,750.00
/3FB PF Basis for Er Contri 01/2010                    0.00           8,750.00
/3FJ VPF basis for Ee contr 01/2010                    0.00           8,750.00
/3FL PF Basis for Er Contri 01/2010                    0.00           6,500.00
/3F4 Er Pension contributio 01/2010                    0.00             541.00
/3FC Pension Basis for Er c 01/2010                    0.00           6,500.00
/3FB PF Basis for Er Contri 01/2010                    0.00           8,750.00
/3FC Pension Basis for Er c 01/2010                    0.00           6,500.00
/3FJ VPF basis for Ee contr 01/2010                    0.00           8,750.00
/3FL PF Basis for Er Contri 01/2010                    0.00           6,500.00
/3R3 Metro HRA Basis Amount 01/2010                    0.00           8,750.00
1BAS Basic Salary           01/2010                    0.00           8,750.00
RT table for year 2009. DOL 27.10.2009
                                                                                /111 EPF Basis              07/2009                    0.00           9,016.13
/139 VPF Basis              07/2009                    0.00           9,016.13
/3F1 Ee PF contribution     07/2009                    0.00           1,082.00
/3F3 Er PF contribution     07/2009                    0.00             628.00
/3F5 Ee Mon PF contribution 07/2009                    0.00           1,082.00
/3F6 Ee Ann PF contribution 07/2009                    0.00           8,822.00
/3F9 PF adm chrgs * 1,00,00 07/2009                    0.00              99.18
/3FA PF basis for Ee contri 07/2009                    0.00           9,016.00
/3FB PF Basis for Er Contri 07/2009                    0.00           9,016.00
/3FJ VPF basis for Ee contr 07/2009                    0.00           9,016.00
/3FL PF Basis for Er Contri 07/2009                    0.00           5,452.00
/3FB PF Basis for Er Contri 07/2009                    0.00           9,016.00
/3FC Pension Basis for Er c 07/2009                    0.00           5,452.00
/3FJ VPF basis for Ee contr 07/2009                    0.00           9,016.00
/3FL PF Basis for Er Contri 07/2009                    0.00           5,452.00
/3R4 Non-metro HRA Basis Am 07/2009                    0.00           9,016.13
1BAS Basic Salary           07/2009                    0.00           9,016.13
Now please suggest what to do. where is the problem ? If have also checked EXIT_HINCALC0_002 but nothing written in it.
With Regards
Ashwani

Open PO Analysis - BW report issue

Hello Friends
I constructed a query in BW in order to show Open Purchase Orders. We have custom DSO populated with standard
datasource 2lis_02_itm (Purcahse Order Item). In this DSO we mapped the field ELIKZ to the infoobject 0COMP_DEL
(Delivery completed).
We loaded the data from ECC system for all POs and found the following issue for Stock Transport Purchase orders (DocType = UB).
We have a PO with 4 line items. For line items 10 and 20, Goods issued, Goods received and both the flags "Delivery
complete" and "Final delivery" checked. For line items 30 and 40, only delivery indicator note is issued for zero
quantity and Delivery complete flag is checked (Final delivery flag is not checked) in ECC system. For this PO, the
delivery completion indicator is not properly updated in the DSO for line items 30 and 40. The data looks like the
following:
DOC_NUM     DOC_ITEM      DOCTYPE     COMP_DEL
650000001       10     UB        X
650000001       20     UB        X
650000001       30     UB
650000001       40     UB
When we run the Open PO analysis report on BW side this PO is appearing in the report but the same is closed in ECC
system.
Any help is appreciated in this regard.
Thanks and Regards
sampath

Hi Priya and Reddy
   Thanks for your response.
                     Yes the indicator is checked in EKPO table for items 30 and 40 and delta is running regularly for more than 1 year and no issues with other POs. This is happening only for few POs of type Stock Transport (UB).
                    I already checked the changes in ME23N and the Delivery completed indicator was changed and it reflected in EKPO table. Further, i checked the PSA records for this PO and i am getting the records with the Delivery completed flag but when i update from PSA to DSO the delivery completed indicator is not updating properly.
                   In PSA, for item 30 i have the following entries. Record number 42 is capturing the value X for ELIKZ but after that i am getting two more records 43 and 44 with process key 10 and without X for ELIKZ. I think this is causing the problem.
Record No.    Doc.No.                    Item              Processkey         Rocancel     Elikz
    41               6500000001            30                    11                            X           ---
    42               6500000001            30                    11                            ---           X
    43               6500000001            30                    10                            X           ---
    44               6500000001            30                    10                            ---         ---
(Here --- means blank)
Thanks and Regards
sampath

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