You’ve seen the news: the first release candidate for Qt 5.0 has just been released. .And if you haven’t, you can go download it from http://qt-project.org/downloads. I’d like to first of all congratulate everyone involved in getting it out, with a special nod to the release team. Thanks for all the work! But I’d like …
Tag Archive: qt
Aug 30
Qt 5.0 beta 1 is out
Lars Knoll, Qt Project’s Chief Maintainer, blogs to let us know that Qt 5.0 beta 1 is out. Hurray! Go forth and download. You can dowload the source code and binaries from the official Qt Project CDN. The tarballs for building on Unix systems like Linux are in the split_sources subdir — Linux distribution packagers …
Jul 10
Continue using QPointer
Early in the Qt 5 development cycle, we had made the decision to deprecate QPointer and replace it with the more modern QWeakPointer. That decision is now reversed, so please continue using QPointer where you were using them. Moreover, don’t use QWeakPointer except in conjunction with QSharedPointer. To understand the reason behind this back and …
Jun 13
AVX-optimised raster painting for Windows too
Yesterday, one of my contributions to Qt was merged which finally adds better support for optimised raster painting on Windows, with SSE2 and AVX instructions. This feature has long been present on the Unix systems, but it was somewhat lacking on Windows. If you’ve read my past blogs, you know I often talk about and …
May 11
Source code must be UTF-8 and QString wants it
I’ve talked about source code encoding in the past, arguing that the C++ language lacks a fundamental setting. However, since this Monday, Qt 5 now starts to enforce that source code must be UTF-8. In a way. The commit that landed on the qtbase repository finally changed the codec used by QString’s 8-bit methods to …
Apr 27
Qt Project Statistics
For about a month, I’ve been improving a set of scirpts to calculate statistics on the Qt Project. What I wanted to know, at first, was how well I was doing, how much I was contributing. Another question I had in mind and I know many others did too was “how much is the Qt …
Apr 03
Qt 5 alpha released
Lars writes to let us know that the first (and hopefully only) Qt 5 alpha has been released! It’s the first in the major release series in 7 years, the first major release of the Qt Project (though not the first release in of the project, since we released 4.8.1 just a few weeks ago). …
Feb 22
The value of passing by value
I’ve written in the past about how passing certain types by value in C++ would be more efficient than passing by constant reference. But it turns out that the ABI rules are somewhat more complex than what I said back in 2008. Time to investigate. This is also prompted by the discussion on qreal on …