How to create ButtonGroup of JToggleButton's that allows to deselect the actual option?

Question

That's it. I need to create a ButtonGroup that allows to select a option or, if the user click on the selected option, deselect the item (nothing will be selected) and, of course, capture the event to do something.

That might not be intuitive for the user. Have you thought about making one option to represent the state/choice that would correspond to the deselection? — Luis Miguel Serrano, Feb 05 '11 at 00:05

score 13 · Accepted Answer · answered May 24 '13 at 09:34

13

Just in case Jeff's link is broken in the future, here's what's described: you need to subclass ButtonGroup to allow a no-selection, and add your buttons to this buttongroup.

public class NoneSelectedButtonGroup extends ButtonGroup {

  @Override
  public void setSelected(ButtonModel model, boolean selected) {
    if (selected) {
      super.setSelected(model, selected);
    } else {
      clearSelection();
    }
  }
}

answered May 24 '13 at 09:34

remi

3,914
1
19
37

1

Or an anonymous inner class will suffice, e.g., `ButtonGroup myGroup = new ButtonGroup(){ /*code from above*/ };` – captainroxors May 19 '14 at 17:18
@MarkJeronimus [answer](https://stackoverflow.com/a/22227537/2506021) refines this to avoid clearing the selection calling `button.setSelected(false)` on a button/checkbox that is not selected. – Rangi Keen Apr 29 '19 at 18:57

score 5 · Answer 2 · edited Nov 10 '20 at 15:10

5

This shows exactly how to do that https://dzone.com/articles/unselect-all-toggle-buttons

edited Nov 10 '20 at 15:10

Emmanuel Bourg

9,601
3
48
76

answered Feb 05 '11 at 01:26

Jeff Storey

56,312
72
233
406

score 1 · Answer 3 · answered Mar 06 '14 at 14:35

I noticed weird behavior when doing button.setSelected(false) on a button/checkbox that is not selected. It deselected everything as if I deselected something.

I fixed it this way:

public class NoneSelectedButtonGroup extends ButtonGroup {

  @Override
  public void setSelected(ButtonModel model, boolean selected) {
    if (selected) {
      super.setSelected(model, selected);
    } else if (getSelection() != model) {
      clearSelection();
    }
  }
}

Stalin Gino · Answer 4 · 2013-06-02T04:35:25.670

0

Capture the event to do something. Also do the below.

@Override
public void actionPerformed(ActionEvent e) {
    ((JToggleButton)e.getSource()).setSelected(false);
}

EDIT: But there is no ButtonGroup involved.

edited Jun 02 '13 at 04:35

answered Jun 02 '13 at 03:20

Stalin Gino

592
9
28

score 0 · Answer 5 · answered Mar 02 '14 at 16:20

Solution for pre java 1.6

public class NoneSelectedButtonGroup extends ButtonGroup {
    private AbstractButton hack;

    public NoneSelectedButtonGroup() {
        super();
        hack = new JButton();
        add(hack);
    }

    @Override
    public void setSelected(ButtonModel model, boolean selected) {
        super.setSelected(selected ? model : hack.getModel(), true);
    }
}

How to create ButtonGroup of JToggleButton's that allows to deselect the actual option?

5 Answers5