Thanks, Trenton.
> - Major bug: enabled/disabled states corrupted for sub-menu items of
> app's main menu bar. Sometimes all items show as enabled, sometimes
> none are enabled, sometimes arbitrary items seem to be
> enabled/disabled. Obviously this is potentially a show-stopper, since
> users either can't do things that they need to do, or can cause crashes
> etc. by accessing menu functions that they shouldn't.
>
> Hmm... I haven't seen this. Do you have an example that reproduces
> this? Or you can point me to the original mail as well.
Here's a means to reproduce it
(qt-all-commercial-src-4.5.0-snapshot-20090224.tar.gz used, built with
macx-g++ -arch x86_64):
Open $QTDIR/src/examples/mainwindows/application/mainwindow.cpp. Find
the MainWindow::createActions() fn and edit the start of it to add the
following line:
void MainWindow::createActions()
{
newAct = new QAction(QIcon(":/images/new.png"), tr("&New"), this);
newAct->setShortcuts(QKeySequence::New);
newAct->setStatusTip(tr("Create a new file"));
newAct->setEnabled(false); // ADD THIS LINE
...
Compile and run. Click on the File menu. The 'New' item should be
disabled, but it isn't. Our application is exhibiting the same problem
under Qt/Cocoa (but works fine on Qt/4.4/Carbon), in that all menu items
show as enabled when the application launches, even those for which
QAction::setEnabled(false) has been called.
Now select File | Open from the menu. The file open dlg correctly
appears. Press the Escape key to dismiss it. Without touching any
other keys or clicking on any other application, click on the File
top-level menu again. All items are now incorrectly disabled, even
though a modal dlg is no longer open.
Press Apple key + Tab twice to switch to any other application and
back. Now click on the File menu again. All menu items will now appear
enabled, even the File | New item, which should be disabled.
Please let me know if that's suffcient. I can dig out my original mails
if needed, but I think the above test case probably shows the problem
more concisely.
Thanks again and best regards,
Martin.
Martin Dyde,
Milan Digital Audio LLC.
http://www.crumhorn-labs.com/
http://www.milandigitalaudio.com/
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