ActionPerformed doesn't work
Hi all,
I have a JInternalFrame with two JPanel (firstPan and secondPan). In firstPan I put a JTree.
When the user click on a node of JTree I views a specific JPanel into secondoPan.
This JPanel is different for every node of JTree
I have a class for every specific JPanel (extends JPanel)
This is the code that do this:
if (secondPan.getComponents().length > 0) {
secondPan.remove(secondPan.getComponent(0));
}
JPanel pan = new PianSpedUdsPan(this, treeNode, treeObj);
secondPan.add(pan, BorderLayout.CENTER);
secondPanPan.paintAll(dettaglioTreePan.getGraphics());
secondPan.validate();
This works fine!
The secondPan views the new JPanel correctly!
In PianSpedUdsPan (the new JPanel) I have a JButton.
I add an ActionListener to this button, but when the user click on it
no events called!
The MouseClicked works fine.
The button have a toolTipTex, also this doesn't work! Nothing tooltip appears!
Someone help me? I don't know where is the problem. I tried a lot of solutions but all don't work
Thanks
Monica
[1160 byte] By [
monksa] at [2007-11-27 9:34:08]
# 1
You didn't post any code that relates to your problem of the ActionListener.
Once again, your problem might just be a coding error, which you obviously havent posted. If you can, re-post the part of the code that has the ActionListener problem.
Also check, if in your actionPerformed method you actually do what is required to fire the event.
ICE
# 2
How did you add the actionlistener to your JButton in the first place?
x.addActionListener(this); //?
If so, do you also have this:
public void actionPerformed(ActionEvent e){
//something here.. like drawString etc or show text etc..
}
and implemented the actionlistener in your class?
# 3
another way of adding actionaListener:
button.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
// do something
}
});
# 4
I made the gui with Gui Designer of Netbeans, so I sure it is correct!
This is the code:
JButton deselezionaBut = new JButton();
deselezionaBut.setIcon(new javax.swing.ImageIcon(getClass().getResource("/it/infolog/sce/resources/ivolume_togli.png")));
deselezionaBut.setToolTipText("Escludi dalla spedizione");
deselezionaBut.setMaximumSize(new java.awt.Dimension(40, 40));
deselezionaBut.setMinimumSize(new java.awt.Dimension(40, 40));
deselezionaBut.setPreferredSize(new java.awt.Dimension(40, 40));
deselezionaBut.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
deselezionaButActionPerformed(evt);
}
});
jToolBar1.add(deselezionaBut);
private void deselezionaButActionPerformed(java.awt.event.ActionEvent evt) {
System.out.println("- actionPerformed --");
}
monksa at 2007-7-12 22:57:32 >
# 5
What is this line about:secondPanPan.paintAll(dettaglioTreePan.getGraphics());Could you try again without that line?
# 6
I'd forgot to change the name of the panel for the forum.
This is the correct line:
secondPan.paintAll(secondPan.getGraphics());
(dettaglioTreePan is the original name of panel in my code, I change it for a simpler understanding)
Without this line the second pan don't view the panel inside.
This line repaint the secondPan after I inserted a new Panel in it
monksa at 2007-7-12 22:57:32 >
# 7
> This is the correct line:
>
> secondPan.paintAll(secondPan.getGraphics());
Normally there is no need for calling getGraphics.
A call of secondPan.revalidate() should be enough.
At most you could include a secondPan.repaint() also.
Anyway, this seems to work fine:
/*
* TreePanelsDemo.java
*/
package tree;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.tree.*;
public class TreePanelsDemo extends JFrame {
private JTree tree;
private JPanel secondPan;
public TreePanelsDemo() {
super("Tree Panels Demo");
setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
setSize(400,300);
setLocationRelativeTo(null);
tree = new JTree();
secondPan = new JPanel();
tree.addTreeSelectionListener(new TreeSelectionListener() {
public void valueChanged(TreeSelectionEvent evt) {
jTree1ValueChanged(evt);
}
});
getContentPane().add(new JScrollPane(tree), BorderLayout.WEST);
secondPan.setLayout(new BorderLayout());
getContentPane().add(secondPan, BorderLayout.CENTER);
}
private void jTree1ValueChanged(TreeSelectionEvent evt) {
Object treeNode = tree.getLastSelectedPathComponent();
if (secondPan.getComponents().length > 0) {
secondPan.remove(secondPan.getComponent(0));
}
String treeObj = treeNode.toString();
JPanel pan = new PianSpedUdsPan(this, treeNode, treeObj);
secondPan.add(pan, BorderLayout.CENTER);
secondPan.revalidate();
}
public static void main(final String args[]) {new TreePanelsDemo().setVisible(true);}
}
class PianSpedUdsPan extends JPanel{
private JToolBar jToolBar1;
public PianSpedUdsPan(JFrame parent, Object node, String str){
add(new JLabel(str));
jToolBar1 = new JToolBar();
JButton deselezionaBut = new JButton();
//deselezionaBut.setIcon(new ImageIcon(getClass().getResource("/it/infolog/sce/resources/ivolume_togli.png")));
deselezionaBut.setToolTipText("Escludi dalla spedizione");
deselezionaBut.setMaximumSize(new Dimension(40, 40));
deselezionaBut.setMinimumSize(new Dimension(40, 40));
deselezionaBut.setPreferredSize(new Dimension(40, 40));
deselezionaBut.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent evt) {
deselezionaButActionPerformed(evt);
}
});
jToolBar1.add(deselezionaBut);
add(jToolBar1);
}
private void deselezionaButActionPerformed(ActionEvent evt) {
System.out.println("- actionPerformed --");
}
}
# 8
I try your suggestions, this is the result:
secondPan.revalidate()
secondPan.validate()
works but the top of the panel inside it not appear... I don't know why....
secondPan.repaint()
not works. The panel inside non appear
The only method that works fine is
secondPan.paintAll(secondPan.getGraphics());
In all of its cases (exclude obviously repaint()) the ActionPerformed doesn't work :-(
Sob..
Are there the methods that disable the ActionPerfomed that I could have inserted in my code?
My class is very complicated, it does a lot of things and there are a lot of method..
Monica
monksa at 2007-7-12 22:57:33 >
# 9
> My class is very complicated, it does a lot of things and there are a lot of method..
Then you'd better start commenting out the ones you think could be problematic and you should soon see where the problem lies.
> Are there the methods that disable the ActionPerfomed that I could have inserted in my code?
I don't think any method can override or cancel out the functionality of another unless explicitly designed to do so.
ICE
# 10
I'm a very stupid girl!!
I correct the problem!
In a panel that I included into JInternalFrame I override the method getParent() !
In a panel I create a
private MyInternalFrame parent;
with the get and set method
The method getParent override the primitive method of JPanel. This create the problem that I write.
Thanks for yours help
Bye
Monica
monksa at 2007-7-12 22:57:33 >
