JMenuItem and JPopupMenu
Is there an esay why round this issue?
I've got a JMenuItem that I would like to add to MULTIPLE menu's.
when I add the JMenuItem to a "new" JPopup it dissappears from the previous one.
eg
JPopupMenu menu1 = new JPopupMenu();
JPopupMenu menu2 = new JPopupMenu();
JMenuItem disappearingItem = new JMenuItem("I'll only appear once");
menu1.add(disappearingItem);
menu2.add(disappearingItem);I know I could "just" create a new JMenuItem that is the same, but this seems like a hassle. Why can't I have the same JMenuItem appearing in different menus?
Thanks,
Steve
Hello,
I think its to avoid incosistency.
This is the responsible source-code from java.awt.Container:
/* Reparent the component and tidy up the tree's state. */
if (comp.parent != null) {
comp.parent.remove(comp);
if (index > ncomponents) {
throw new IllegalArgumentException("illegal component position");
}Ragards,
Tim
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Problem with InputVerifier and JPopupMenu
Hello, I have a problem related to the usage of InputVerifier and JPopupMenu.
Consider the following scenario:
- A frame composed of two components: a JTextField and a JComboBox
- An InputVerifier that was set in the JComboBox (and in its associated JTextComponent)
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The verify() method of the InputVerifier class is executed every time the focus is on the JComboBox and is requested by other component.
Suppose that the focus is on the JComboBox, and a right mouse click is executed over this components. In summary, we have:
1) The method verify() of the InputVerifier associated to the JComboBox is executed
2) The focus changes from the JTextComponent (associated to the JComboBox) to the JRootPane (associated to the JTextComponent (that is associated to the JPopupMenu)).
Now suppose that, the user clicks in the JTextField component (note that the JPopupMenu is visible and has the focus). What happens is that the focus goes from the JRootPane -> JTextComponent (associated to the JComboBox) -> JTextField.
Despite the focus flow through the JTextComponent, the Swing plattaform, when executing the runInputVerifier() in the JComponent context, get the JRootPane component as the focusOwner instead of the JTextComponent.
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JMenuItem and JTextField doesn't look right after upgrading to Java 8
I just upgraded to JDK 8u25
I have a legacy Swing application, which makes use of JMenuItem and JTextField
I realize, after upgrading, there is a bolder grey vertical border at the left side of JMenuItem and JTextField
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This only happen, if I were using look n feel com.sun.java.swing.plaf.windows.WindowsLookAndFeel
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Here's the code example to demonstrate the problem.
package javaapplication5;
* @author yccheok
public class NewJFrame extends javax.swing.JFrame {
* Creates new form NewJFrame
public NewJFrame() {
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.
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {
jTextField1 = new javax.swing.JTextField();
jMenuBar1 = new javax.swing.JMenuBar();
jMenu1 = new javax.swing.JMenu();
jMenu2 = new javax.swing.JMenu();
jMenuItem1 = new javax.swing.JMenuItem();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
jMenu1.setText("File");
jMenuBar1.add(jMenu1);
jMenu2.setText("Edit");
jMenuItem1.setText("jMenuItem1");
jMenu2.add(jMenuItem1);
jMenuBar1.add(jMenu2);
setJMenuBar(jMenuBar1);
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(21, 21, 21)
.addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, 147, javax.swing.GroupLayout.PREFERRED_SIZE)
.addContainerGap(232, Short.MAX_VALUE))
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(19, 19, 19)
.addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, 30, javax.swing.GroupLayout.PREFERRED_SIZE)
.addContainerGap(230, Short.MAX_VALUE))
pack();
}// </editor-fold>
* @param args the command line arguments
public static void main(String args[]) {
/* Set the Nimbus look and feel */
//<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
/* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
* For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html
try {
for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
if ("Windows".equals(info.getName())) {
javax.swing.UIManager.setLookAndFeel(info.getClassName());
break;
} catch (ClassNotFoundException ex) {
java.util.logging.Logger.getLogger(NewJFrame.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(NewJFrame.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(NewJFrame.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(NewJFrame.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
//</editor-fold>
/* Create and display the form */
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new NewJFrame().setVisible(true);
// Variables declaration - do not modify
private javax.swing.JMenu jMenu1;
private javax.swing.JMenu jMenu2;
private javax.swing.JMenuBar jMenuBar1;
private javax.swing.JMenuItem jMenuItem1;
private javax.swing.JTextField jTextField1;
// End of variables declaration
} catch (ClassNotFoundException ex) {
java.util.logging.Logger.getLogger(NewJFrame.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(NewJFrame.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(NewJFrame.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(NewJFrame.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
//</editor-fold>
/* Create and display the form */
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new NewJFrame().setVisible(true);
// Variables declaration - do not modify
private javax.swing.JMenu jMenu1;
private javax.swing.JMenu jMenu2;
private javax.swing.JMenuBar jMenuBar1;
private javax.swing.JMenuItem jMenuItem1;
private javax.swing.JTextField jTextField1;
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If I add Menuitems to a JMenu which is added to the menubar everything works as expected. One of the menu items is another JMenu, a sub-menu. When JAWS reads this it speaks "submenu" indicating that there is a sub-menu to the right of the current menu item. However, If I attached the exact same menuitems to a JPopupMenu,
JAWS never speaks "submenu" so the user has no iindication that there is a sub-menu to the right.
I've taken the attached code from "The JFC Swing Tutorial - Second Edition" and tweaked it slightly so the menubar and popup menu contain the same items.
It seems as if the accessibility api is expecting the first set of menu items to be attached to a menu parent.
If worked around this for now by adding another top level menu to the popupmenu to which I add the menuitems.
Is this a Java or JAWS bug ?
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
* Like MenuDemo, but with popup menus added.
public class TextFieldDemo {
JTextArea output;
JScrollPane scrollPane;
String newline = "\n";
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JMenu menu;
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JMenuItem[] mi = createAMenu();
for(int i=0; i < mi.length; ++i)
menu.add(mi);
menuBar.add(menu);
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menu.setMnemonic(KeyEvent.VK_N);
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frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
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demo.createPopupMenu();
//Display the window.
frame.setSize(450, 260);
frame.setVisible(true);
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//Schedule a job for the event-dispatching thread:
//creating and showing this application's GUI.
javax.swing.SwingUtilities.invokeLater(new Runnable() {
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JPopupMenu popup;
PopupListener(JPopupMenu popupMenu) {
popup = popupMenu;
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maybeShowPopup(e);
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maybeShowPopup(e);
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popup.show(e.getComponent(),
e.getX(), e.getY());
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JMenu submenu;
JMenuItem menuItem;
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JCheckBoxMenuItem cbMenuItem;
JMenuItem items[] = new JMenuItem[8];
//a group of JMenuItems
menuItem = new JMenuItem("A text-only menu item",
KeyEvent.VK_T);
//menuItem.setMnemonic(KeyEvent.VK_T); //used constructor instead
menuItem.setAccelerator(KeyStroke.getKeyStroke(
KeyEvent.VK_1, ActionEvent.ALT_MASK));
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"This doesn't really do anything");
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menuItem = new JMenuItem("Both text and icon");
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rbMenuItem.setMnemonic(KeyEvent.VK_R);
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rbMenuItem.setMnemonic(KeyEvent.VK_O);
group.add(rbMenuItem);
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submenu.setMnemonic(KeyEvent.VK_S);
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menuItem.setAccelerator(KeyStroke.getKeyStroke(
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submenu.add(menuItem);
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I want to add chekboxes to a poupup menu ,how can I do that. I already have a submenu with names of columns ton hide and show them using chekcboxes and i want that same menu as a popup when i click in the tableheader.
thanx -
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This is how I've implemented it:
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class LibraryGUI extends JFrame {
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private JLabel addStaffTitle, addStudentTitle;
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bar.add(addMenu);
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exit.addActionListener(new ActionListener() {
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addStudentTitle.setText("Add Student Member");
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addStaff.addActionListener(new ActionListener() {
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}It compiles fine, no errors. But when the menu items are clicked it just does nothing. Any ideas?
- WillHmm, normally after adding/remove component to/from a panel you would need to use panel.revalidate. However, this didn't seem to work. Playing around I came up with the following:
container.setVisible(false);
container.removeAll();
container.add(addStudentPanel);
container.setVisible(true);
However, instead of using this approach I suggest you look at using a CardLayout. This Layout Manager was designed for this situation, to replace the entire contents of a panel with multiple different panels. Read this section from the Swing tutorial on Using Layout Managers:
http://java.sun.com/docs/books/tutorial/uiswing/layout/visual.html
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addStaff.setActionCommand("staff");
addStudend.setActionCommand("student");
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Hi there!!
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Does anyone ever needed this kind of effect?
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Im having a problem creating a JPopupMenu,
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However, the menu item is not diplayed.
I tried adding various other containers too, but they are not displayed either, any ideas what im doing wrong?
Thanks,
JamesYes quite, netbeans is absolutley fine, frankly, the java website suggests using it for gridbag... Some people just like to feel 1337.
Curiously its working now, kinda.
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or
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Hey all,
I am trying to implement my own menu system by subclassing JMenu, JMenuItem, and JPopupMenu. Everything works fine, except for one glitch: when what should be a submenu opens, the main menu closes because they are both popups and swing only allows one popup to display at a time. Looking through the source I can't see how JMenu gets around this. Can anyone offer a suggestion?
I see JPopupMenu.isSubPopupMenu(), but that is package private and, as far as I can tell completely unused. I also see PopupMenu.setInvoker() but that does not have the desired effect.
Thanks!
bjornuser12952952 wrote:
Hey all,
I am trying to implement my own menu system by subclassing JMenu, JMenuItem, and JPopupMenu.Why? That is, what behavior are you changing that merits subclassing?
There may be a solution for your requirements that doesn't involve subclassing.
db -
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