Modal JDialog move only in JFrame

I need to create dialogs that can only move within the context of the apps JFrame. Any ideas on how to accomplish this?

Simply not possible !!!
You can keep the Model Window with in the Co-ordinates of the JFrame's. But then refreshing will be a problem.

Similar Messages

Problems with 'background' JFrame focus when adding a modal JDialog

Hi all,
I'm trying to add a modal JDialog to my JFrame (to be used for data entry), although I'm having issues with the JFrame 'focus'. Basically, at the moment my program launches the JFrame and JDialog (on program load) fine. But then - if I switch to another program (say, my browser) and then I try switching back to my program, it only shows the JDialog and the main JFrame is nowhere to be seen.
In many ways the functionality I'm looking for is that of Notepad: when you open the Find/Replace box (albeit it isn't modal), you can switch to another program, and then when you switch back to Notepad both the main frame and 'JDialog'-esque box is still showing.
I've been trying to get this to work for a couple of hours but can't seem to. The closest I have got is to add a WindowFocusListener to my JDialog and I hide it via setVisible(false) once windowLostFocus() is fired (then my plan was to implement a similar functionality in my JFrame class - albeit with windowGainedFocus - to show the JDialog again, i.e. once the user switches back to the program). Unfortunately this doesn't seem to work; I can't seem to get any window or window focus listeners to actually fire any methods, in fact?
I hope that kind of makes sense lol. In short I'm looking for Notepad CTRL+R esque functionality, albeit with a modal box. As for a 'short' code listing:
Main.java
// Not all of these required for the code excerpt of course.
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.GraphicsEnvironment;
import java.awt.Rectangle;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.ComponentAdapter;
import java.awt.event.ComponentEvent;
import java.awt.event.FocusEvent;
import java.awt.event.FocusListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.awt.event.WindowFocusListener;
import java.awt.event.WindowListener;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JSplitPane;
import javax.swing.UIManager;
import javax.swing.plaf.basic.BasicSplitPaneDivider;
import javax.swing.plaf.basic.BasicSplitPaneUI;
public class Main extends JFrame implements ActionListener, WindowFocusListener, WindowListener, FocusListener {
     static JFrame frame;
     private static int programWidth;
     private static int programHeight;
     private static int minimumProgramWidth = 700;
     private static int minimumProgramHeight = 550;
     public static SetupProject setupProjectDialog;
     public Main() {
          // Setup the overall GUI of the program
     private static void createSetupProjectDialog() {
          // Now open the 'Setup Your Project' dialog box
          // !!! Naturally this wouldn't auto-open on load if the user has already created a project
          setupProjectDialog = new SetupProject( frame, "Create Your Website Project", true );
          // Okay, for this we want it to be (say) 70% of the progamWidth/height, OR *slightly* (-25px) smaller than the minimum size of 700/550
          // Change (base on programWidth/Height) then setLocation
          int currProgramWidth = getProgramWidth();
          int currProgramHeight = getProgramHeight();
          int possibleWidth = (int) (currProgramWidth * 0.7);
          int possibleHeight = (int) (currProgramHeight * 0.7);
          // Set the size and location of the JDialog as needed
          if( (possibleWidth > (minimumProgramWidth-25)) && (possibleHeight > (minimumProgramHeight-25)) ) {
               setupProjectDialog.setPreferredSize( new Dimension(possibleWidth,possibleHeight) );
               setupProjectDialog.setLocation( ((currProgramWidth/2)-(possibleWidth/2)), ((currProgramHeight/2)-(possibleHeight/2)) );
           else {
               setupProjectDialog.setPreferredSize( new Dimension( (minimumProgramWidth-25), (minimumProgramHeight-25)) );
               setupProjectDialog.setLocation( ((currProgramWidth/2)-((minimumProgramWidth-25)/2)), ((currProgramHeight/2)-((minimumProgramHeight-25)/2)) );
          setupProjectDialog.setResizable(false);
          setupProjectDialog.toFront();
          setupProjectDialog.pack();
          setupProjectDialog.setVisible(true);
     public static void main ( String[] args ) {
          Main frame = new Main();
          frame.pack();
          frame.setVisible(true);
          createSetupProjectDialog();
        // None of these get fired when the Jframe is switched to. I also tried a ComponentListener, but had no joy there either.
     public void windowGainedFocus(WindowEvent e) {
          System.out.println("Gained");
          setupProjectDialog.setVisible(true);
     public void windowLostFocus(WindowEvent e) {
          System.out.println("GainedLost");
     public void windowOpened(WindowEvent e) {
          System.out.println("YAY1!");
     public void windowClosing(WindowEvent e) {
          System.out.println("YAY2!");
     public void windowClosed(WindowEvent e) {
          System.out.println("YAY3!");
     public void windowIconified(WindowEvent e) {
          System.out.println("YAY4!");
     public void windowDeiconified(WindowEvent e) {
          System.out.println("YAY5!");
     public void windowActivated(WindowEvent e) {
          System.out.println("YAY6!");
     public void windowDeactivated(WindowEvent e) {
          System.out.println("YAY7!");
     public void focusGained(FocusEvent e) {
          System.out.println("YAY8!");
     public void focusLost(FocusEvent e) {
          System.out.println("YAY9!");
SetupProject.java
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowEvent;
import java.awt.event.WindowFocusListener;
import java.awt.event.WindowListener;
import java.io.IOException;
import java.net.URL;
import javax.imageio.ImageIO;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JLabel;
public class SetupProject extends JDialog implements ActionListener {
     public SetupProject( final JFrame frame, String title, boolean modal ) {
          // Setup the JDialog
          super( frame, title, modal );
          setDefaultCloseOperation( JDialog.DISPOSE_ON_CLOSE );
          // Bad code. Is only temporary
          add( new JLabel("This is a test.") );
          // !!! TESTING
          addWindowFocusListener( new WindowFocusListener() {
               public void windowGainedFocus(WindowEvent e) {
                    // Naturally this now doesn't get called after the setVisible(false) call below
               public void windowLostFocus(WindowEvent e) {
                    System.out.println("Lost");
                    setVisible(false); // Doing this sort of thing since frame.someMethod() always fires a null pointer exception?!
}Any help would be very much greatly appreciated.
Thanks!
Tristan

Hi,
Many thanks for the reply. Isn't that what I'm doing with the super() call though?
As in, in Main.java I'm doing:
setupProjectDialog = new SetupProject( frame, "Create Your Website Project", true );Then the constructor in SetupProject is:
public SetupProject( final JFrame frame, String title, boolean modal ) {
          // Setup the JDialog
          super( frame, title, modal );
          And isn't the super call (since the class extends JDialog) essentially like doing new JDialog(frame,title,modal)?
If not, that would make sense due to the null pointer exception errors I've been getting. Although I did think I'd done it right hence am confused as to the right way to handle this,if so.
Thanks,
Tristan
Edited by: 802573 on 20-Oct-2010 08:27

Non-modal JDialog hides its JFrame "owner"

I'm writing my first significant swing application. It has a JFrame that launches a JDialog. When constructing the JDialog, I have the JFrame as the owner and set it to be non-modal. The dialog is indeed non-modal, since it allows me to click on the JFrame and run it. However, if the two windows overlap, the JDialog is always on top, covering the JFrame, even if the JFrame has focus. This can make it difficult to effectively work with the JFrame while the JDialog is on the screen.
There must be a simple solution to this, but I haven't discovered it yet. Any ideas?

Thank you so much for your reply. I just confirmed that passing null to the JDialog does indeed allow the JFrame to overlay it. However, now if I minimize the JFrame, the JDialog stays up. I'd prefer that it go disappear with the JFrame. Is there a way to "have it both ways"? That is, Is there a way to make the JDialog go away when the JFrame is minimized, but still make it possible for the JFrame to overlay the JDialog?
Thanks again for the original reply.
TIA on this one, too!
Tim

How to make only one JFrame active at a time !!!

Hy, I have created a JFrame and I have placed a
JPanel in it. I also have a JButton "New" on the
JPanel. When I click on the "New" Button, another JFrame
appears. But I want ONLY one JFrame to be appeared
at a time. That is when a JFrame appears on the JPanel,
I should not be able to add another one.
If it is not possible to do this with JFrame, then how to do
it with a JDialog
How to do this.
thanks

You can declare a boolean variable in your class and set it to true if you open a window. Next time when you click the NEW button, check whether that boolean value is true or false. If true then don't open a new window. Also when u close the frame window, set the boolean value to false.

Modal JDialog messing parent layout

Hello!
Why does a modal JDialog mess up the parent frame layout? Actually only one panel inside it and a few components but still. When setVisible(true) is called on the dialog, the parent layout gets screwed. And when the dialog is closed it stays screwed until something makes the panel/frame re-validate itself (like resize or call to validate()). Any ideas what might be causing this?
The dialog is modal and the frame is set as the parent for the dialog.
Thanks,
-teka

Well it's possible that I am. The code is a bit complex with lots of classes etc. (and not made by me originally). Didn't find any AWT components when I browsed through the code but maybe I missed something. Does mixing AWT and Swing cause layout problems like that?
-teka

Modal JDialog needs disposing TWICE!

I have a simple JDialog that is modal over another JDialog. It has a cancel button whose action event simply calls dispose().
However, on first invocation of cancel, the dispose() does not actually remove the dialog; it is only on a second click that dispose() actually does kill the dialog. I notice also that the first dispose() does not cause WindowClosed() to be called. I have verified that definitely only one instance of the dialog is being referenced (hashcode on each dispose is the same).
The problem immediately goes away if I make the dialog non-modal, but I want it modal!!
Any suggestions? Seems like a bug to me...(j2sdk1.4.1_01)

By calling setVisible(false) the modal JDialog disappears and while it's invisible it's not modal (awt Dialogs do that, too). I was not able to reproduce your problem, but this piece of code may solve it:
setVisible(false);
dispose();

Change a modal JDialog to non-modal JDialog

I created a modal JDialog initially, for some result i need change it to a non-modal JDialog, is there any set modal command can do it??

Nope.
The reason is because of program flow:
System.out.println("first line");
JDialog dialog = new JDialog(modal);
dialog.setVisible(true); // blocks this flow if and only if modal is true
System.out.println("second line");
Try putting a button in the dialog which prints out "button pressed".
If you press the button each time before closing the dialog you will get:
when modal is true:
first line
button presed
second line
when modal is false:
first line
second line
button prese

Can't start Thread from modal JDialog.

Hi,
this is a part of my code. I can't start the scanThread from the object WaitingDl. But if i close the modal JDialog (WaitingDl) the scanThread starts, please help:
Thread scanThread = new Thread() {
public void run() {
// do something ....
WaitingDl waitFrame = new WaitingDl("Waiting process", parent, scanThread, "Please wait ...");
class WaitingDl extends JDialog {
public WaitingDl(String title, JFrame parent, Thread thread, String waitingText) {
// a modal Dialog
super(parent,true);
// This command doesn't work!
scanThread.start();
Thanks!

Hi,
As suggestion :
I think your JDialog is modal and visible by default, so
when you invoke the contructor :
WaitingDL d=new ......
you enter to "modal state" so the Event thread is blocked and this append when you invoke super at
contructor level.
If you set your dialog not visible you can do :
WaitingDL d=new .........
// at this moment the contructor is invoked but the event thread is not blocked so your thread is started
d.setVisible(true);
// at this point the dialog is visible you enter at a modal state but your thread is running
Hope this help
Bye

Is there a way to display a non modal JDialog on JApplet

Whenever I try to add a non modal JDialog over a JApplet, the JDialog freezes and components on it never gets painted. After a disappointing search over web, I've kinda begin to hate swing. I am shocked that a very basic thing like this is so hard to achieve in Java. Any solution folks?
My code is as follows:
import java.awt.Frame;
import javax.swing.JApplet;
import javax.swing.JDialog;
import javax.swing.JLabel;
import javax.swing.JButton;
public class DialogApplet extends JApplet {
     private javax.swing.JPanel jContentPane = null;
     private JButton jButton = null;
      * This method initializes jButton
      * @return javax.swing.JButton
     private JButton getJButton() {
          if (jButton == null) {
               try {
                    jButton = new JButton();
                    jButton.setText("Click Me");
                    jButton.setBounds(75, 80, 147, 34);
                    jButton.addActionListener(new java.awt.event.ActionListener() {
                         public void actionPerformed(java.awt.event.ActionEvent e) {
                              Frame f = javax.swing.JOptionPane.getFrameForComponent(jContentPane);
                              JDialog pi = new JDialog(f, "MainFrame Dialog", false);
                            pi.getContentPane().add(new JLabel("I got to be working Bossie!!!"));
                            pi.pack();
                            pi.setLocation(75, 80);
                            pi.setVisible(true);
                            try {
                            Thread.sleep(10000);
                        } catch (InterruptedException e1) {
                            e1.printStackTrace();
                            pi.setVisible(false);
               catch (java.lang.Throwable e) {
                    e.printStackTrace();
          return jButton;
     public static void main(String[] args) {
      * This is the default constructor
     public DialogApplet() {
          super();
          init();
      * This method initializes this
      * @return void
     public void init() {
          this.setSize(300,200);
          this.setContentPane(getJContentPane());
      * This method initializes jContentPane
      * @return javax.swing.JPanel
     private javax.swing.JPanel getJContentPane() {
          if(jContentPane == null) {
               jContentPane = new javax.swing.JPanel();
               jContentPane.setLayout(null);
               jContentPane.add(getJButton(), null);
          return jContentPane;
}

try this, it is really simple, just to look at
example from the swing tutorials.
Thanks my friend, If you carefully observe my code, I also needed some piece of code to run in the background ((The thread.sleep() part)) while displaying the dialog. The problem was the JDialog used to freeze and components on it never used to get painted. Finally I managed to find a way out. If we try to display a JDialog with a new thread, The event dispatching thread takes precedence and the painting of components on the JDialog happens only after even dispatching thread is done. All I did was display JDialog in the event dispatch thread and run the background process in new thread.
My code.
import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.Frame;
import javax.swing.JApplet;
import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
public class DialogApplet extends JApplet {
    private javax.swing.JPanel jContentPane = null;
    private JButton jButton = null;
    private JDialog dialog = null;
     * This is the default constructor
    public DialogApplet() {
        super();
        init();
     * This method initializes this
    public void init() {
        this.setSize(300, 200);
        Container container = this.getContentPane();
        container.add(getJContentPane());
     * This method initializes jContentPane
     * @return javax.swing.JPanel
    private javax.swing.JPanel getJContentPane() {
        if (jContentPane == null) {
            jContentPane = new javax.swing.JPanel();
            jContentPane.setLayout(null);
            jContentPane.add(getJButton(), null);
        return jContentPane;
     * This method initializes jButton
     * @return javax.swing.JButton
    private JButton getJButton() {
        if (jButton == null) {
            try {
                jButton = new JButton();
                jButton.setText("Click Me");
                jButton.setBounds(75, 80, 147, 34);
                jButton.addActionListener(new java.awt.event.ActionListener() {
                        public void actionPerformed(java.awt.event.ActionEvent e) {
                            showDialog();
            } catch (java.lang.Throwable e) {
                e.printStackTrace();
        return jButton;
     * This method displays Dialog
    public void showDialog() {
        final Frame frame = JOptionPane.getFrameForComponent(this);
        dialog = new JDialog(frame, "DialogApplet", false);
        dialog.setModal(true);
        Container contentPane = dialog.getContentPane();
        JPanel panel = new JPanel(new BorderLayout());
        panel.add(new JLabel("I got to be working Bossie!!!"), BorderLayout.CENTER);
        contentPane.add(panel);
        dialog.pack();
        Thread t = new Thread() {
                public void run() {
                    for (int i = 0; i < 100000; ++i) {
                        System.out.println(i);
                    dialog.hide();
        t.start();
        dialog.show();
}

How to move only subset of data from one database to another?

Both source & destination are Oracle11g databases.
The requirement details are as below,
1) The database contains static as well as transactional data for telecom domain.
2) We have to move region-wise data from one database to another.
3) There are around 10 regions.
4) The region wise data extraction from source db is based on around 40 to 50 tables. Rest of the tables contains
static data & it will not change.
5) The volume is around 1 million subscribers per region.
6) The migration is required because
a) The client is upgrading its base product which uses this database
b) There is a change in structure of static tables
c) Hardware upgrade
d) The client want to start with single region on new database & rest of the regions will be operated from old
database.
7) Keep execution time to very minimum.
I am thinking to have solution as below,
1) Create destination database with upgraded db structure (as mentioned in 6b)
2) Create database links to access source db in destination db.
3) Write SQL queries to fetch data from all the respective tables for a specific region
4) Write separate PL/SQL blocks for each table to fetch data from source db & insert into respective table in
destination db
a) Use FOR ALL & bulk collect to improve the performance
b) Divide table data into multiple chunks & execute parallel batches (around 10) to insert the data
5) Validate pre & post counts to verify the success of migration
Is there any other better way?
Regards,
Sandeep

How to move only subset of data from a partiular table by using transportable tablespace?
E.g. SUB table using SMP_SUB tablespace contains subscriber data in source database.
The indexes defined on SUB table are under SMP_IDX_SUB tablespace
The subscribers data can be categorized by different regions, say region_id column. Then how to move data & indexes of SUB table from source db to destination db?
any specific example would be helpful.

Hello everyone. As a new Mac user, I would really like to know the easiest way to move my music files from my old PC to my MacBook? Do I move only the files, the entire iTunes and how? I have a lot of music so it is not a solution with iPod/iPhone.

Hello everyone. As a new Mac user, I would really like to know the easiest way to move my music files from my old PC to my MacBook? Do I move only the files, the entire iTunes and how? I have a lot of music so it is not a solution with iPod/iPhone.

Your best option is to post this in the iTunes forum.
Ciao.

How do you display Movies only in iPhoto?

How do you display Movies only in iPhoto?

Create a Smart Album like this (depending on your iPhone model)
You'll see your iPhone pictures and all movies in the library.
OT

JButton on XP non-modal Jdialog doen't work.

I recently upgraded from 1.3 to 1.4 while upgrading my OS from NT 4.0 to XP.
In a stand-alone application I have non-modal JDialog's that are launched as threads so that I can have multiple instances of them running simultaneously. There are JButton's on the JDialog's which no longer respond to any mouse events even though I can execute them via the keyboard using the tab and enter keys. They work just fine under 1.3 or if I make them modal.
Any thoughts?

Hello,
Issue is-
There are JButton's on the JDialog's which no longer respond to any mouse events even though I can execute them via the keyboard using the tab and enter keys. They work just fine if I make them modal.
Plz suggest

Non modal JDialog

Hi All,
I want a non modal JDialog which is used to show the message to the user that it is searching for the records, when a search is performed and records are retrieved from the database. When the search is going on user might hit cancel on the JDialog to cancel the search. My problem is, the cancel button on the Search dialog is not catching the event and user is not able to select the cancel option on the dialog.
Here is my code :
class SearchWindow extends JDialog {
private JPanel btnPanel;
private JLabel lblSearch;
private JButton btnCancel;
* Constructor
public SearchWindow() {
super((Frame)null, false);
setTitle("Searching Shipment Legs");
cancelled = false;
addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent evt) {
close();
Container contentPane = getContentPane();
contentPane.setLayout(null);
addButtons();
pack();
Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
setSize(new Dimension(300, 100));
setSize(300,100);
setLocation((screenSize.width-700)/2,(screenSize.height-450)/2);
private void addButtons() {
btnPanel = new JPanel();
btnPanel.setLayout(new BorderLayout());
lblSearch = new JLabel("Searching..........");
btnCancel = new JButton("Cancel");
btnPanel.setBackground(Color.lightGray);
lblSearch.setBackground(Color.lightGray);
btnCancel.setBackground(Color.lightGray);
btnPanel.add(lblSearch, BorderLayout.CENTER);
btnPanel.add(btnCancel, BorderLayout.SOUTH);
btnCancel.addMouseListener(new MouseAdapter() {
public void mousePressed(MouseEvent evt) {
System.out.println("cancel");
cancelled = true;
close();
btnPanel.setBounds(0,0,200,50);
this.getContentPane().add(btnPanel);
lblSearch.setVisible(true);
btnCancel.setVisible(true);
this.getContentPane().validate();
public void close() {
this.setVisible(false);
this.dispose();
public void show() {
super.show();
paintComponents(getGraphics());
this.setModal(false);
Any help is greatly appreciated.
Thanks,
Bhaskar

Hi Haroldsmith
I am calling this search window in one of my programs where on button click it will fetch the records from the database. When this process is on, search dialog is shown up. Ths dialog is shown correctly and its getting closed as soon as the search is completed. But the probelm is its not allowing me to click on cancel button.
Bhaskar

Issues opening pdf in a modal jdialog

Hi guys,
I've a strange issue, I can't solve it.
I'm newbie of java swing and this is a very difficult issue.
I've a jdialog modal. In this jDialog I've a button, clicking on it a pdf is generated with itext.
I observed that:
-if I try to generate pdf from a frame, pdf is shown over the frame.
-if I try to generate pdf from a jdialog swing(that's case I need) pdf is shown below jdialog...so I can't see pdf without closing jdialog and it's not good.
How can I proceed in the second case?
Thanks

hi,
thanks for your reply...I try to addo more detail.
I have a modal jdialog.
In it I have a button, clicking on it is called a method to create a pdf with itext.
Here a snippet of code
try {
              Document document = new Document(PageSize.A4);
               PdfWriter.getInstance(document, new FileOutputStream(FILE));
               document.open();
                        create(document);
               document.close();
                        String[] command = new String[3];
               command [0] = "cmd.exe";
               command [1] = "/C";
               command [2] = "\"" + FILE+ "\"";
                        Runtime.getRuntime().exec(command );
          } catch (Exception e) {
               e.printStackTrace();
                        JOptionPane.showMessageDialog(null, "Si è verificato il seguente errore: "+e.getMessage(), "Errore stampa pdf", JOptionPane.ERROR);
                        return;
          }Following this way pdf is opened but it's shown under the modal jdialog that called it.
So for watching it I need to close modal jdialog.
How can I run pdf to make it OVER a modal jdialog?
Thanks,
Regards

Modal JDialog move only in JFrame

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