I think setting your own renderer should do the job just fine. In this
example I use the value as label and get the checkbox selection state
from outside (here isSelected(int) ) - but I guess there are a lot of
ways to do this, depending on your data model.
public class JCheckboxTree extends JTree {
public JCheckboxTree() {
setCellRenderer(new TreeCellRenderer(){
JCheckBox box = new JCheckBox();
public Component getTreeCellRendererComponent(JTree tree,
Object value, boolean selected, boolean expanded, boolean leaf, int
row, boolean hasFocus) {
box.setText(value.toString());
box.setSelected(isSelected(row));
box.setBackground(selected ? Color.blue : Color.white);
return box;
}
});
}
boolean isSelected(int row){
return row%2==0;
}
public static void main(String[] args) {
JFrame f = new JFrame();
f.getContentPane().add(new JScrollPane(new JCheckboxTree()));
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.pack();
f.setVisible(true);
}
}
Hope it helps,
Thasso
On Oct 5, 6:33 am, Shooter <[email protected]> wrote:
> I'm looking for some help writing a JTree that uses. I've found
> limited examples on the web, but most are copyrighted and all seem to
> use very different implementation approaches.
>
> Does anyone have links or ideas for creating a JTree with nothing more
> than a check box and a label for each node in the tree. I've been
> able to override the renderer to use a simple JCheckBox(String)
> constructor but I can't get the check boxes to actually select and
> deselect. Any help at all would be greatly appreciated.
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