Re: [Development] QtBase WIP branch request

2016-10-12 Thread James Turner 

> On 7 Oct 2016, at 02:32, Morten Sorvig  wrote:
> 
> 
> What is actually in development? The scope is outlined in QTBUG-49827 and 
> includes
> - Improving expose event handling
> - Improving support for Core Animation layer-backed QWindows
> - Improving support for embedding QWindow in NSView hierarchies
> - Driving QWindow::requestUpdate() animations via CVDisplayLink

Morten, I was doing some work, and have some patches (not yet available) in 
this area, to do with embedding NSView hierarchies inside QWidgets. The 
approximate changes are in the Cocoa QPA, to ensure that child QWindows are 
inserted into the NSView heirarchy as subviews correctly, and re-ordered in the 
subviews list (by removing and re-adding, as the AppKit docs suggest).

One of the bugs hopefully fixed by this is:

https://bugreports.qt.io/browse/QTBUG-7140

I can provide the patches via email, but I wonder if they will be subsumed by 
this work you’re about to start.

Kind regards,
James

--
James Turner - Senior Software Developer
KDAB - The Qt, C++ and OpenGL Experts






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Re: [Development] Backporting the "stop unloading plugins" change to 5.6

2016-10-12 Thread Thiago Macieira 
Em quarta-feira, 12 de outubro de 2016, às 22:28:33 CEST, André Pönitz 
escreveu:
> On Wed, Oct 12, 2016 at 09:59:06PM +0200, Thiago Macieira wrote:
> > Hello
> > 
> > We've got a number of issues that got fixed in 5.7 by the change that made
> > QFactoryLoader stop unloading plugins (notably,
> 
> Not unloading plugins is not a fix.

No, it's a workaround. But I'm at a loss to fix the current issue.

The issue at hand is that the plugin was unloaded between a slot being invoked 
in a queued connection and the object that would receive the event getting 
deleted. When deleting the object, the events queued to it are deleted. When 
metacall events are deleted, the parameters stored in it are destroyed. In 
order for QMetaType to destroy such a type, it needs to call the destroying 
functions registered with it.

Since we do allow breaking of ODR because of hidden visibility / DLLs, the 
functions in question may have belonged to the plugin that was unloaded, even 
if the type wasn't exclusive to that plugin.

-- 
Thiago Macieira - thiago.macieira (AT) intel.com
  Software Architect - Intel Open Source Technology Center

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Re: [Development] Backporting the "stop unloading plugins" change to 5.6

2016-10-12 Thread André Pönitz 
On Wed, Oct 12, 2016 at 09:59:06PM +0200, Thiago Macieira wrote:
> Hello
> 
> We've got a number of issues that got fixed in 5.7 by the change that made 
> QFactoryLoader stop unloading plugins (notably,

Not unloading plugins is not a fix.

Andre'
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[Development] Backporting the "stop unloading plugins" change to 5.6

2016-10-12 Thread Thiago Macieira 
Hello

We've got a number of issues that got fixed in 5.7 by the change that made 
QFactoryLoader stop unloading plugins (notably, the Network Manager bearer 
plugin). Given that QtDBus in 5.6 is now heavily threaded, a number of new 
issues have cropped up. I've managed to fix some, but reports from Ubuntu 
developers indicate the latest fix only uncovered the next issue.

If we do stop unloading, the problem goes away.

So, ok to backport?

See https://codereview.qt-project.org/172014 (original 
https://codereview.qt-project.org/140750)
-- 
Thiago Macieira - thiago.macieira (AT) intel.com
  Software Architect - Intel Open Source Technology Center

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[Development] [Announce] Qt 5.6.2 released

2016-10-12 Thread List for announcements regarding Qt releases and development 
Hi all,

I am happy to inform that Qt 5.6.2 is released today, see 
http://blog.qt.io/blog/2016/10/12/qt-5-6-2-released/

Big thanks to everyone involved!

br,
Jani Heikkinen
Release Manager

The Qt Company
Elektroniikkatie 13
90590 Oulu Finland
jani.heikki...@qt.io
+358 50 4873735
http://qt.io





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Re: [Development] Whether Qt5.8 support Visual Studio '15' now?

2016-10-12 Thread Thiago Macieira 
Em quarta-feira, 12 de outubro de 2016, às 07:15:50 CEST, Maurice Kalinowski 
escreveu:
> VS 15 is not released yet, and with 5.8 beta soon to be released, there are
> some time constraints to check for it. Hence any feedback in advance is
> nice.
 
> Maybe Thiago has been able to look into it.

I did, but my changes that added support for the next version got conflict when 
moving to 5.8, after sitting there for a month not getting approvals, so I 
abandoned them. I will not be working anymore on enabling new Microsoft 
compilers.

-- 
Thiago Macieira - thiago.macieira (AT) intel.com
  Software Architect - Intel Open Source Technology Center

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Re: [Development] Whether Qt5.8 support Visual Studio '15' now?

2016-10-12 Thread Maurice Kalinowski 
VS 15 is not released yet, and with 5.8 beta soon to be released, there are 
some time constraints to check for it. Hence any feedback in advance is nice.

Maybe Thiago has been able to look into it.

Generally, latest at its release support will be available, probably (given 
track record) earlier.

BR,
Maurice
From: Development 
[mailto:development-bounces+maurice.kalinowski=qt...@qt-project.org] On Behalf 
Of ??
Sent: Wednesday, October 12, 2016 4:06 AM
To: development 
Subject: [Development] Whether Qt5.8 support Visual Studio '15' now?

Hi,
I want compile Qt5.8 with Visual Studio '15' ，Not 2015,are there any problems？

Thanks.
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