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From "Dmitry Irlyanov (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HARMONY-4658) [classlib][swing][compartibility] The order of ItemStateChanged events in buttonGroup is differs from RI
Date Mon, 03 Sep 2007 15:32:58 GMT

    [ https://issues.apache.org/jira/browse/HARMONY-4658?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12524544
] 

Dmitry Irlyanov commented on HARMONY-4658:
------------------------------------------

Alexei,
It's my fault. Try this one

> [classlib][swing][compartibility] The order of ItemStateChanged events in buttonGroup
is differs from RI
> --------------------------------------------------------------------------------------------------------
>
>                 Key: HARMONY-4658
>                 URL: https://issues.apache.org/jira/browse/HARMONY-4658
>             Project: Harmony
>          Issue Type: Bug
>          Components: Classlib
>            Reporter: Dmitry Irlyanov
>            Assignee: Alexei Zakharov
>         Attachments: H4658-DefaultButtonModel-JToggleButton.patch
>
>
> The order of itemStateChanged events is different for RI and for our implementation.
It isn't a bug because the behavior is unspecified, but some applications may rely on this
issue
> import java.awt.event.ItemEvent;
> import java.awt.event.ItemListener;
> import javax.swing.AbstractButton;
> import javax.swing.ButtonGroup;
> import javax.swing.JRadioButton;
> public class Test {
>     public static void main(String[] args) {
>         ButtonGroup group = new ButtonGroup();
>         JRadioButton b1 = new JRadioButton("First");
>         JRadioButton b2 = new JRadioButton("Second");
>         group.add(b1);
>         group.add(b2);
>         b1.setSelected(true);
>         ItemListener buttonListener = new ItemListener() {
>             public void itemStateChanged(ItemEvent e) {
>                 AbstractButton rb = (AbstractButton) e.getSource();
>                 System.err.println(rb.getText() + " state changed");
>             }
>         };
>         b1.addItemListener(buttonListener);
>         b2.addItemListener(buttonListener);
>         b2.setSelected(true);
>         b1.setSelected(true);
>         b2.setSelected(true);
>         b1.setSelected(true);
>     }
> }
> Output:
> RI:
> First state changed
> Second state changed
> Second state changed
> First state changed
> First state changed
> Second state changed
> Second state changed
> First state changed
> Harmony: 
> Second state changed
> First state changed
> First state changed
> Second state changed
> Second state changed
> First state changed
> First state changed
> Second state changed

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