Hello,
could you, please, create a JIRA ticket for this (if not done yet)?
I remember some changes - but it was 5.6, so 5.7.1 would be also broken then ...
Best regards,
Timur.
________________________________
From: Development <development-bounces+timur.pocheptsov=qt...@qt-project.org>
on behalf of René J.V. Bertin <rjvber...@gmail.com>
Sent: Thursday, February 16, 2017 11:21:52 PM
To: development@qt-project.org
Cc: Harald Sitter
Subject: [Development] QMacCocoaViewContainer changes?
Hello,
Has anything changed in Qt 5.8.0 with the way the QMacCocoaViewContainer class
has to be used? I observe the following after updating from 5.7.1 to 5.8.0 :
- Qt Designer crashes when I have Phonon 4.9.x installed with the
phonon-backend-vlc git/master backend (https://cgit.kde.org/phonon-vlc.git/).
- the QMacCocoaViewContainer ctor now also calls
QMacCocoaViewContainer::setCocoaView() when a NULL NSView pointer is given.
- the QMacCocoaViewContainer example no longer releases the native view after
passing it to setCocoaView(), despite what the documentation says, and despite
the fact that setCocoaView indeed does a retain. Not releasing the VideoView
instance in phonon-vlc's VlcMacWidget ctor also prevents the Designer crash but
theoretically means the instance is being leaked.
The Designer crash is preceded by the terminal output below and occurs in
~QMacCocoaViewContainer(), when doing [nsview release]. This means it's doing
one release too many, as confirmed by the malloc error.
qt.qpa.cocoa.window: NSView is not QNSView, consider checking for
Qt::ForeignWindow
qt.qpa.cocoa.window: NSView is not QNSView, consider checking for
Qt::ForeignWindow
Designer(97879,0x7fff721fd310) malloc: *** error for object 0x7fc7cf2a3300:
pointer being freed was not allocated
*** set a breakpoint in malloc_error_break to debug
Thanks,
R.
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