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 […]
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A Speed-Up for Charting on Embedded Introducing Min–Max Trees to Summarize Large Amounts of Data
I’d like to talk about a common problem that we have seen come up in several projects, namely how to plot large datasets over time in an efficient manner using Qt. This seems to be a general issue, especially in embedded situations and is affecting many people. Because of this, I thought we’d share one […]
New in Qt 5.11: improvements to the model/view APIs (part 2)
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 released presenting 10 new Qt compile-time checks
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 […]
Efficient custom shapes in Qt Quick Because rectangles, even rounded ones, can only get you so far.
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. […]
KD Chart 2.6.1 Released The Qt tool for creating business charts
This is the latest release of our powerful open-source Qt component, KD Chart, that allows you to create business charts and much more. Release Highlights Builds with modern Qt versions, at least up to Qt 5.10 Improves tooltip handling Fixes horizontal bar chart Uses @rpath for OSX dynamic libraries Fixes build on Qt4/ARM KD Chart […]
GammaRay 2.9.1 Release
We have released version 2.9.1 of our Qt application introspection tool GammaRay. Besides important improvements for use in Android APK bundles this release fixes a number of corner cases in the Qt Quick remote view, including crashes and corrupt view content when encountering certain non-integer high DPI scaling factors. Problems with activating the Qt 3D […]
Python – Tron Demo using Qt Quick and the Qt 3D QML API
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 […]
LibreOffice and Plasma easing the use of GTK apps on the KDE desktop
At KDAB, we know that consistency is an important aspect of the User Experience – users don’t want to have to learn different ways to achieve the same thing. In the Linux world, there is a major structural pitfall to this: the applications written for Linux come in at least two major technologies – Qt […]
What a mesh! Part 1
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 […]