<AWT Dev>  Review request for 7160604: Using non-opaque windows - popups are initially not painted correctly
oleg.pekhovskiy at oracle.com
Wed Nov 20 06:23:42 PST 2013
thanks you for the review,
please see the next version of fix:
getPopup() method was renamed to showPopup().
On 20.11.2013 15:14, Sergey Bylokhov wrote:
> Hi, Oleg.
> Looks like now getPopup method should be renamed, because it returns
> On 20.11.2013 15:06, Oleg Pekhovskiy wrote:
>> Hi all,
>> please review the fix
>> For now popup menu is painted correctly, so the fix applies to
>> drop-down list of combo-box only.
>> BasicComboPopup class implements drop-down list.
>> BasicComboPopup.isVisible() checks whether BasicComboPopup.popup field
>> is not null. When the drop-down list is about to show and the
>> following call-chain occurs: BasicComboPopup.togglePopup() -> show()
>> -> setVisible(true) -> getPopup()
>> newPopup.show() method is called before BasicComboPopup.popup field is
>> updated. Thus when painting occurs for the first time (synchronously,
>> inside newPopup.show()), BasicComboPopup.isVisible() returns false and
>> JComponent.paintChildren() skips drawing of BasicComboPopup.
>> So the fix makes BasicComboPopup.popup field being updated before call
>> of Popup.show(). Moreover setting of BasicComboPopup.popup field was
>> moved inside BasicComboPopup.getPopup() method as the same thing
>> happened after each call of this method.
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