I added listeners to my JButtons for the popup menu but when the popup menu appears the JButtons disappear and I would need to hover my cursor on the buttons to make them appear again. Why is it like this?
(all the methods here are in the same class)
public Inventory() {
setLayout(null);
setBounds(0, 0, 175, 210);
initPopupMenu(); // this just sets what is inside the popup menu
int x;
// 30 buttons
for(x = 0; x < 30; x++) {
button[x] = new JButton();
add(button[x]);
button[x].addMouseListener(this);
}
x = 0;
// it's a grid of buttons
for(int i = 0; i < 5; i++)
for(int j = 0; j < 6; j++) {
button[x].setBounds(i*35+1,j*35+1, 33,33);
x++;
}
}
public void mouseClicked(MouseEvent e) {
for(int j = 0; j < 30; j++) // i tried this one but it still disappears
button[j].repaint();
for(int i = 0; i < 30; i++) {
if(e.getSource() == button[i]) {
System.out.println("You pressed Button "+i);
popup.show(e.getComponent(), e.getX(), e.getY());
}
}
}
This is what happens,
Stop using null
Layout, seems like that can be one of the issues regarding this. Your JFrame
appears sort of BLACK
to me, is this some THEME
or a new LOOK AND FEEL
you are using, that can be the cause of this thing too. Here check this out, it's working flawlessly here with this code :
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class ButtonPopUp
{
private static final int SIZE = 30;
private JButton[] button = new JButton[SIZE];
private JPopupMenu popup = new JPopupMenu("Hello World");
private void createAndDisplayGUI()
{
JFrame frame = new JFrame("Button POP UP Example");
frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
frame.setLocationByPlatform(true);
final JPanel contentPane = new JPanel();
contentPane.setLayout(new GridLayout(0, 5));
JMenuItem menuItem1 = new JMenuItem("Menu Item 1");
JMenuItem menuItem2 = new JMenuItem("Menu Item 2");
//popup.add(greetings);
popup.insert(menuItem1, 0);
popup.insert(menuItem2, 1);
for (int i = 0; i < SIZE; i++)
{
button[i] = new JButton();
button[i].setBorder(BorderFactory.createEtchedBorder());
button[i].addMouseListener(new MouseAdapter()
{
public void mouseClicked(MouseEvent me)
{
System.out.println("I am WORKING!!");
popup.show((JComponent)me.getSource(), me.getX(), me.getY());
}
});
contentPane.add(button[i]);
}
frame.getContentPane().add(contentPane);
frame.setSize(175, 250);
frame.setVisible(true);
}
public static void main(String... args)
{
SwingUtilities.invokeLater(new Runnable()
{
public void run()
{
new ButtonPopUp().createAndDisplayGUI();
}
});
}
}
Here is the output :
LnF
can be another culprit : - nIcE cOw 2012-04-04 11:03
JTable
with custom cells. ;- - Stephan 2012-04-04 11:05
paint(...)
method, any specific reason for that, since in Swing
never override paint(...)
always override paintComponent(...)
if the said JComponent
has one. You are MOST Welcome and Keep Smiling :- - nIcE cOw 2012-04-04 11:11