http://labs.trolltech.com/blogs the ramblings of engineers Tue, 09 Feb 2010 16:43:03 +0000 http://backend.userland.com/rss092 en Those of you who have an interest in the SQL functionality of Qt may have seen my name floating around a bit for the last year or three. I've taken over the care and tending of the SQL subsystem. Sometimes you have to make hard decisions. Decisions to prune parts ... http://labs.trolltech.com/blogs/2010/02/09/tds-driver-deprecation/ Last time, I showed a very hacky way to get Qt 4.6 applications built for Maemo 5 on Mac OS X using MADDE, the stand-alone cross-compilation toolkit for Maemo 5. The newly released technical preview of MADDE fixed some of the issues (bugs #7821 and #7773) that made Qt 4.6 development ... http://labs.trolltech.com/blogs/2010/02/08/qt-46-for-maemo-5-applications-on-mac-os-x-take-ii/ Requirements 1) Tegra 2 platform 2) The latest Nvidia Tegra2 SDK (11.0074_devlite_eula_Beta-RC.zip at this time) Board bring up Nvidia have done a pretty good job in documenting bring up and I will not paraphrase them. I personally used their dev environment exactly as intended (answering every question posed during installation with an affirmative), so my dev machine ... http://labs.trolltech.com/blogs/2010/02/05/qtx11-bring-up-on-tegra2-with-full-opengl-es-2-support/ As of Qt 4.6 massive improvements have been made to the QWS/DirectFB driver. While there has been some support of DirectFB since Qt 4.3, 4.6 comes with significant improvements in terms of performance, stability and features. This release has been validated on several media platforms in the home entertainment sphere like ... http://labs.trolltech.com/blogs/2010/02/04/qt-46-now-with-improved-directfb-support/ Like for the other parts of Qt, having great performance is important for QtWebKit. Traditionally, QtWebKit has been mostly used on desktop computers for advanced layouting, hybrid applications or simply to browse the web. On a modern computer, the speed of WebKit is not a problem. The world has changed, and QtWebKit ... http://labs.trolltech.com/blogs/2010/02/02/how-to-improve-webkit-performance/ Hi! Here's the weekly summary of Qt related changes to WebKit trunk. Big changes include Yael's patch for WebSockets support, the beginnings of QtScript on top of JavaScriptCore's C API, Maemo 5 tweaks and layout test fixes: Janne added the necessary meta-data to make QtWebKit play nicely with Symbian backups (34077). I did ... http://labs.trolltech.com/blogs/2010/02/01/last-week-4-in-qtwebkit-trunk/ Declarative UI is one of the big things on the Qt Roadmap for Qt 4.7 and 4.6.x. I already enjoyed working with the Qml language and the developers behind it for quite some time - and believe me, this one will fundamentally change the way slick Qt UIs are designed ... http://labs.trolltech.com/blogs/2010/01/27/upcoming-qtcreator-support-for-qml-or-what-is-bauhaus/ This week has been a very busy week! Here's a list of the landed changes that affect the Qt port, in chronological order: Tor Arne has ported the Qt build of DumpRenderTree to run on Windows. (r53526, r53543). Luiz continued with cleaning up the combobox popup handling.(33418). Ben from the Google Team fixed ... http://labs.trolltech.com/blogs/2010/01/24/this-week-3-in-qtwebkit-trunk/ Previous posts in this topic: Whats Hot and whats Not An Overview The Raster Engine The OpenVG Engine The OpenGL Engine The Cost of Convenience Fast Text In this series that we've been doing, I wanted to cover threading, a topic that has been actively discussed amongst some of the ... http://labs.trolltech.com/blogs/2010/01/21/qt-graphics-and-performance-generating-content-in-threads/ Last time I wrote here I was still a member of the QA team and I was announcing the launch of the qt-stable branch. Well, after two very successful years on the QA department I decided to change directions and I joined the platform team working on the Mac platform. So, ... http://labs.trolltech.com/blogs/2010/01/20/it-is-time-to-reduce-the-carbon-emissions/