19.07.2017 
When using Qt’s model/view framework, filtering has always been very easy with QSortFilterProxyModel. To filter a list using text typed by the user in a line-edit, you have certainly been applying the standard recipe: instantiate the proxy; insert it between view and source model; connect the lineedit’s textChanged signal to the proxy’s setFilterFixedString slot; done! […]
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hotspot – a GUI for the Linux perf profiler First public release of hotspot v1.0.0 available
After many months of work, I’m very pleased to finally announce KDAB’s latest R&D project to the public: hotspot – a GUI for the Linux perf profiler. I have used Linux perf a lot over the past years.
A tale of 2 curves Or the complexity simplicity requires.
As my first subject for this animation blog series, we will be taking a look at Animation curves. Curves, or better, easing curves, is one of the first concepts we are exposed to when dealing with the subject of animation in the QML space. What are they? Well, in simplistic terms, they are a description […]
GammaRay 2.8.0 Release
We have released version 2.8.0 of our Qt application introspection tool GammaRay. GammaRay allows you to observe behavior and data structures of Qt code inside your program live at runtime. A big focus in this release is improvements to the Qt Quick inspector, which gained layout helper grids and Qt Quick Controls 2 tracing, as […]
Creating PDF/A documents with Qt
As there were some complex issues around conformity in PDF document creation within Qt, KDAB let me spend some time digging into it so we could make sure that Qt’s PDF engine generates documents up to ISO-standard. Nowadays, many official institutions have the requirement to archive their data digitally and PDF is a first class citizen for this […]
KDAB contributions to Qt 5.9
Qt 5.9 has just been released! This release marks two important milestones for the Qt Project. The first is that now the Qt 5 series has had more releases than any other Qt version ever (the last release of the Qt 4 series was Qt 4.8). The second milestone is that Qt 5.9 will be a […]
What makes for good animation?
In the beginning there was … That’s how things start, right? And in the beginning there were punch cards. The UI was rudimentary direct machine language, so we could say there was no UI.So let there be light! In very simplistic terms that was a screen where one could type text (using a keyboard) and […]
Ci vediamo a QtDay 2017?
With an apology to English-speaking audiences 🙂 Anche quest’anno KDAB partecipa a QtDay, la conferenza italiana interamente dedicata a Qt. Giunta oramai alla sua sesta edizione, QtDay continua a crescere. Quest’anno QtDay si articola in 3 giorni: il primo dedicato a un training su QML, seguito da due giorni di conferenza vera e propria. Durante […]
Training in Foss Compliance
On June 23rd 2017, there’s a new, one day training in our Berlin facility, this time in German. Training in FOSS Compliance will be available, in English, in Berlin and other locations later this year. More on that below, in English. Meanwhile, since our first open-enrolment training to help you with the complex issues around […]
Ci vediamo alla Italian C++ Conference 2017?
(English speaking? Keep reading!) Il prossimo Giugno parteciperò all’Italian C++ Conference 2017, la più importante conferenza italiana sul C++, sponsorizzata da KDAB. L’evento è gratuito e si rivolge tanto ai programmatori esperti di C++ quanto a chi voglia avvicinarsi a questo linguaggio. L’edizione di quest’anno prevede due tracce, di cui una completamente in inglese, con […]