Those of you who've visited KDAB's offices in Berlin, will know we have a fleet of electric scooters for our staff. You may have even tried one yourself! Today, unu, the Berlin-based mobility company that makes them, launches their latest electric scooter - the unu Scooter. The unu Scooter has been completely redeveloped, is more […]

Each month KDAB schedules time for me to maintain the Qt for Android port. Usually I use it to review the pending patches or fix bugs, but sometimes there is a quiet month and I have time to add new functionalities or improve the existing ones. April was quite quiet so I decided to rewrite […]

In vehicle infotainment systems and instrument clusters are getting larger and more complex, requiring an exponentially growing base of software to drive them. Furthermore, KDAB finds that self-driving technology does not obviate the need for displays – in fact, autonomous technology seems to be accelerating the trend for larger and more capable graphics software. To […]

QMacTouchBar has landed Recent Apple MacBook Pro models contain an entirely new hardware feature, the touchbar. The touchbar is a touch-sensitive OLED strip sitting above the standard keyboard, where the function keys used to be. macOS uses it for some of the physical buttons that used to be located there, such as volume controls, but […]

Clazy 1.5 is now available. This is a small release, mainly focused on bug fixing. Clazy is a clang compiler plugin which emits warnings related to Qt best practices. We'll be showing Clazy at Embedded World, Nuremberg, Feb 26-28, where we are a main Qt partner. You can read more about it in our previous […]

Enter the wonderful world of tools for which the announcement blog takes more time to write than the tool itself. qsslint is a small command-line utility for verifying the syntax of your Qt stylesheet files (*.qss). It's much like KDAB's previous linter contribution, qmllint. It simply returns 0 if the stylesheet is valid, and non-zero […]

We have released version 2.10.0 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. GammaRay 2.10 comes with an entirely new inspection tool for QtLocation geo positioning data. Besides visualizing the currently provided positioning data on a map, it […]

Santa Claus is coming to ... wait a minute, it's not Christmas yet! Status update: The patch was merged into master branch on Mar 6th, therefore it will be part of QtCreator 4.10(5.0?) not 4.9! I have the pleasure to let you know that KDAB has contributed to Qt with yet another super cool project! […]

KDAB announces the release of Kuesa™, a solution that provides an integrated and unified workflow for designers and developers to create, optimize and integrate real time 3D content in a 3D or hybrid 2D/3D software user interface. Kuesa provides an easy, integrated and unified workflow without any compromises for designers and developers giving: great performance […]

This year's North American stop on the Qt World Summit world tour was in Boston, held during the Red Sox’s World Series win. Most of us were glad to be flying home before celebration parades closed the streets! The Qt community has reason to celebrate too, as there’s an unprecedented level of adoption and support […]

In the last episode of this series we discussed QAbstractItemModel::checkIndex(). QAbstractItemModel::checkIndex() is a function added in Qt 5.11 that allows developers of model classes to perform some validity checks on the QModelIndex objects passed to the model; specifically, on the indices passed to the APIs that model classes need to implement (rowCount(), columnCount(), data, setData(), […]

Clazy 1.4 has been released and brings 10 new checks. Clazy is a clang compiler plugin which emits warnings related to Qt best practices. We'll be showing Clazy at Qt World Summit in Boston, Oct 29-30, where we are a main Sponsor. You can read more about it in our previous blog posts: How to […]

QtQuick includes basic visual item to construct many common user-interface components, but people often ask how to create different visual appearances, beyond rectangles, round-rectangles and images. There’s various solutions to this problem, and with Qt 5.10, there’s the new Shapes module which makes it easy to define paths, ellipses and other standard SVG drawing elements. […]

For SIGGRAPH, KDAB has been working on a new Qt 3D based demo. We decided that instead of using C++, it would be interesting to try out PySide2 and harness Python to drive the application. The idea behind this demo is to do with data acquisition of a vehicle's surrounding environment. Once the data is […]

With all the advances being made in Qt 3D, we wanted to create some new examples showing some of what it can do. To get us started, we decided to use an existing learning framework, so we followed the open source Tower Defence course, which you can find at CGCookie. Being a game, it allows […]

There has been a lot of back and forth around the use of Free Software in public administration. One of the latest initiatives in this area was started by the Free Software Foundation Europe, FSFE. It focuses on the slogan: Public Money - Public Code. There are various usage scenarios for Free Software in public […]

The Qt model/view APIs are used throughout Qt -- in Qt Widgets, in Qt Quick, as well as in other non-GUI code. As I tell my students when I deliver Qt trainings: mastering the usage of model/view classes and functions is mandatory knowledge, any non-trivial Qt application is going to be data-driven, with the data […]

Some months ago Shawn Rutledge blogged about the new QtPdf module, a Qt wrapper around the PDFium library, which allows you to render PDF documents to QImages. Since that blog post we have invested some more work into the module to make it more useful in your day-to-day projects. One long-standing bug report against Qt […]

While I was working on a yet-to-be-announced super secret and cool Qt on Android project, I had to do a lot of debugging. This way I found that debugging Qt apps on Android using QtCreator was ok, but it had some issues, which was kinda frustrating. First issue was that I could not debug on […]