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List:       kde-core-devel
Subject:    Input how to fix bug with kextendableitemdelegate
From:       Michael Jansen <info () michael-jansen ! biz>
Date:       2008-02-17 13:39:03
Message-ID: 200802171439.03404.info () michael-jansen ! biz
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Hi

I'm new to kde development so i would like to have your opinion with a bug im
trying to fix. I hope my description is clear enough.

There is a bug in "systemsettings" -> "keyboard & mouse". Open it. Select the
arrow for "Pack Window Down" so that the kshortcuteditwidget gets mixed into
the treeview. Select another kde component at the top ( kxkb for example ).
The items change but the Shortcuts Editor ist still there. You can reproduce
it as often as you wish.

Close the application -> Assertion failure.

The reason is that kextendableitemdelegate stores the index when mixing in the
kshortcuteditwidget. But when selecting a new component the treeview is
cleared and refilled.  All items get deleted. But the kextendableitemdelegate
doesn't get the memo.  Hence the kshortcuteditwidget doesn't get deleted
and/or removed.  The assertion that fails tries to verify that the indices are
still valid when the delegate is deleted.

Solution: ??

I think the kextendableitemdelegate has to listen to the rowsAboutToBeRemoved
signal from the treeview. Other ideas?

Michael Jansen

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