JList problem

[Markos]

here is what i have but i get errors.
I get the errors when i select an element from a list. Can you just help
me to explain why i get this ? Just in words please , no code . Thanks again.

list.addMouseListener(new MouseAdapter() {
public void mouseClicked(MouseEvent e) {
int index = list.locationToIndex(e.getPoint());
Object value = list.getSelectedValue().toString();
myList lst = new myList();
list = (JList)lst.getListCellRendererComponent(list,value,index,true,true);

}
});



import java.awt.*;
import java.awt.event.*;
import javax.swing.*;


class myList extends JLabel implements ListCellRenderer {

public myList() {
setOpaque(true);
}


public Component getListCellRendererComponent(
JList list,
Object value,
int index,
boolean isSelected,
boolean cellHasFocus){


if (isSelected) {
setText(value.toString());
setBackground(Color.white);
setBorder(BorderFactory.createLineBorder(Color.green));
}
return this;
}
}

[Paul Clapham]

Looks like the part of your post where you told us what errors you get was
lost. Can you post it again?

Markos <MarkosPolo@aol.com> wrote in message
news:39f6ffde$1@news.devx.com...
>
> here is what i have but i get errors.
> I get the errors when i select an element from a list. Can you just help
> me to explain why i get this ? Just in words please , no code . Thanks
again.
>
> list.addMouseListener(new MouseAdapter()

> public void mouseClicked(MouseEvent e)

> int index = list.locationToIndex(e.getPoint());
> Object value = list.getSelectedValue().toString();
> myList lst = new myList();
> list =
(JList)lst.getListCellRendererComponent(list,value,index,true,true);
>
> }
> });
>
>
>
> import java.awt.*;
> import java.awt.event.*;
> import javax.swing.*;
>
>
> class myList extends JLabel implements ListCellRenderer

>
> public myList()

> setOpaque(true);
> }
>
>
> public Component
ListCellRendererComponent(
> JList list,
> Object value,
> int index,
> boolean isSelected,
> boolean cellHasFocus){
>
>
> if (isSelected) {
> setText(value.toString());
> setBackground(Color.white);
> setBorder(BorderFactory.createLineBorder(Color.green));
> }
> return this;
> }
> }
>

[markos]

the problem is solved now. I found a way to do it. It was very simmple. When
label was redrawing it didn't know which one was selected or not. So now
this works.


list.addMouseListener(new MouseAdapter() {
public void mouseClicked(MouseEvent e) {
int index = list.locationToIndex(e.getPoint());
Object value = list.getSelectedValue().toString();
Rectangle rect = list.getCellBounds(index,index);
myList lst = new myList(rect);
list.setCellRenderer(
(ListCellRenderer)lst.getListCellRendererComponent(list,
value,index,true,true));
}
});

class myList extends JLabel implements ListCellRenderer {

Rectangle rect;

public myList(Rectangle rect) {
this.rect = rect;
}

public Component getListCellRendererComponent(
JList list,
Object value,
int index,
boolean isSelected,
boolean cellHasFocus) {

setText(value.toString());
setBounds(rect);

if (isSelected) {
setBorder(BorderFactory.createLineBorder(Color.black));
}
else {
setBorder(BorderFactory.createLineBorder(Color.white));
}
return this;
}
}