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https://issues.apache.org/jira/browse/PIVOT-971?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16280800#comment-16280800
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Roger Whitcomb commented on PIVOT-971:
--------------------------------------
Add test/demo features to the CheckedListViewTest program. Also added an
Adapter class to ListViewItemStateListener for completeness (since the
interface now has two methods).
Sending tests\src\org\apache\pivot\tests\CheckedListViewTest.java
Adding tests\src\org\apache\pivot\tests\checked_list_view_test.bxml
Sending wtk\src\org\apache\pivot\wtk\ListViewItemStateListener.java
Transmitting file data ...done
Committing transaction...
Committed revision 1817316.
> Add the ability to have tri-state checkboxes in ListView
> --------------------------------------------------------
>
> Key: PIVOT-971
> URL: https://issues.apache.org/jira/browse/PIVOT-971
> Project: Pivot
> Issue Type: New Feature
> Components: wtk, wtk-terra
> Affects Versions: 2.0.4
> Environment: All
> Reporter: Roger Whitcomb
> Assignee: Roger Whitcomb
> Priority: Minor
> Labels: listview
> Fix For: 2.1
>
> Attachments: listview.diffs, tri-state listview.png
>
>
> For one place in our application, a ListView is used along with checkboxes,
> but it seems like it would be good to be able to use tri-state checkboxes
> here, such that a mixed state could be indicated for some entries. But, then
> the question becomes: if the checkbox is mixed, is it checked or not? Two
> thoughts on that:
> 1. Add a method to get the checkbox state for all items, so you can check
> yourself if they are checked, unchecked or mixed.
> 2. Add a property "mixedAreChecked", which if set true (default false) would
> make the mixed state entries show up as checked.
> Also, how do you set the "mixed" state for an item? Not sure about that yet.
> Altogether: lots of implications throughout the code to support this feature.
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