Entries in a ListView can be grouped in sections. In this video we will present a little trick to make the section collapse when clicked. Consider it a little exercise -- it requires a bit of creativity and knowledge about how QML works.
ListView can be customized in many ways! There are plenty of knobs and levers to control ListView's behavior. We can highlight the current index, we can have keyboard navigation, we can control its scrolling and even have section headings. In this video we'll explore a few of these customization options.
This video introduces two important building blocks: positioners elements and the Repeater element. Positioners are used to automatically place their children side by side or one below each other, and so on. The Repeater element creates a number of elements driven by a data model. By placing a Repeater into a positioner, we can create elements driven by data and arrange them, all automatically.
ListView is probably the most important component for model/view programming in QML. ListView supports flicking, it creates and destroys elements on demand (to be able to work with very big datasets), and so on. This video introduces ListView and its basic usage.
After four months of intensive development work, I am happy to announce that the first QStringTokenizer commits have landed in what will eventually become Qt 6.0. The docs should show up, soon. While the version in Qt will be Qt 6-only, KDAB will release this tool for Qt 5 as part of its KDToolBox productivity […]
Today, KDAB is releasing version 1.2 of the 3D integration workflow Kuesa 3D, built on top of Qt 3D. Kuesa™ 3D is a complete design-to-code workflow solution for 3D in real-time applications, centered around the open glTF™ 2 format, supported by Blender, Maya and 3ds Max. In short, Kuesa provides a workflow that simplifies work […]
This KUESA™ 3D example demonstrates skeletal animation imported from Blender via GLTF2, audio synthesis based on played notes, robot arm control with user-adjustable playback speed, seamless integration of design animations with live data input, and cross-platform compatibility running on both desktop and embedded targets.
This May KDAB News edition covers: follow-up on using FOSS software with commercial Qt licenses; Qt 5.15 release; Qt Multimedia add-on; KUESA 3D Studio 1.2 release; Flutter 1.17 release.
In the last blog post we saw an essential, C++ oriented, Visual Studio Code setup. That was enough to get going right away, but we can still definitely do more and better. Here I'll show you how to get a complete setup for your qmake and CMake projects, all this while also wearing a Qt […]
KDAB's Kevin Funk presented Using Modern CMake with Qt at Qt Virtual Tech Con last month. He reported that the Qt Company did a great job moderating the sessions at this event, and there was a lively Q&A at the end - Kevin had to pick from about 60 questions, so this is a hot […]
Kuesa™ 3D is a complete design-to-code workflow solution for 3D in real-time applications, centered around the open glTF™ 2 3D format, supported by Blender, Maya and 3ds Max.
My first project when I entered KDAB was the migration of a multi-million lines Motif application to Qt... feels quite scary said like that. Fortunately, migrations from any toolkit to Qt is something KDAB has been doing from the beginning, and has lots of experience with. You may be wondering what this has to do […]
Common render issues and their solution - Part 2
If you are here from Part 1, welcome back. If you are wondering why we started at Part 2, go to Part 1. So, you tried everything from the first part (that was relative to you), and your screen is still a backlighting test? No problem. (Well.. I mean, clearly there is but […]
In this module we will explore the different possibilities to create animations in QML. Animations are a first-class citizen in QML; pretty much any property can be easily animated by using one of the many available animation types. We'll kickstart the first video of the series by showing you how to create and control animations and aggregate them together to build more complex ones (sequential, parallel, and so on).
Time for a little trick! When creating custom animations, it may help to run them in slow motion – just for debugging purposes, of course. This is doable by writing some C++ code, but requires poking into Qt internals. Just use GammaRay™ instead!
Flipable is a convenience component in Qt Quick that shows two different arbitrary elements: one on its front, and one on its back. Like a postcard, we can rotate the Flipable and see the other element. Flipable does not come with a built-in animation; we have to create one ourselves to make it look nicer.
In this video we'll introduce states and transitions in QML. States are a very convenient way to centralize the property values of a set of items in a user interface built in QML. While states define the values themselves, transitions define how to animate the change of the values corresponding to a state change.
Designers sometimes want to move a graphic element alongside a custom path, specified via bezier curves or SVG paths. PathAnimation is the tool for this job in QML; this video teaches you how to use it.
Qt's model/view framework is one of Qt's most challenging aspects. While list models are relatively straightforward, tree models require handling custom indexes, causing developers frustration for over a decade. Adding proxy models for filtering/sorting and communication through proxy stacks to base models increases complexity. Custom delegates are needed for different painting and event handling per row, column, or cell.
This episode of KDAB News includes: Interview with Kalle Dalheimer; Qt for MCU 1.1; Crowdsourcing 3D printing projects to support healthcare; Announcements.
