In this edition we have: Qt DevCon 2022; KDE, the World's First Eco-Certified Software; Tip of the month, the Nlohmann/JSON library.
Developers with Java or C++98 backgrounds often default to subclassing when facing problems. Modern C++ offers many different solutions, and this episode demonstrates when subclassing isn't the right approach.
Designing API's is hard work with lots of traps. Even worse is the situation when you later maintain the code and just need a function to behave slightly different in different situations.
Complex applications display lots of information, making it difficult to find layouts that work for every user. KDDockWidgets provides flexibility by letting users reorganize, save, and restore their custom layouts to meet different needs.
In Qt Creator, there is a line edit which has a push button embedded in it for selecting tokens. How did they do that? In this episode, I'll investigate and implement a file chooser based on this idea.
Whether you've just finished watching our 54 "Introduction to Qt/QML" videos or you are just looking for QML tips and tricks, here are 35 more videos that can help you save time and increase your productivity. So check out our Qt Creator tips, our git tips, and much more!
Qt DevCon was a conference for the Qt developer community and focused exclusively on developer topics. It took place place in Berlin, Germany from 14th to 15th June 2022.
Back in August 2021, there was an impressive demonstration of an artificial intelligence able to code web pages and python code. In this video, Jesper demonstrates the KDAB release of Qt Creator with Open AI Codex built in, and show how far you can actually get with it.
Rust has been the most beloved programming language in StackOverflow surveys since 2016, offering safer and easier programming than C++. It's an ideal replacement for C++ backend code in Qt applications. CXX-Qt enables idiomatic integration that seamlessly works with existing C++ and Rust code.
Developers often spend significant time recreating designs or design changes that may not match the designer's vision. When 3D scene changes are involved, the back-and-forth updates become time-consuming and frustrating. Kuesa 3D simplifies this process - simply pointing to an updated glTF file location in your code instantly shows 3D scene changes in your application.
Whether you're new to unit testing or already write tests, this episode shows how to set up Qt's testing framework and maximize Qt Creator's testing features. Covers Qt's framework versus others, test cases with QCOMPARE, table-driven testing, Qt Creator integration, debugging tests, and CMake integration.
Unless you've never used QTableView, you've likely struggled with column sizing: avoiding blank space, stretching specific columns, fitting content, allowing resizing, avoiding scrollbars, or preventing excessive vertical space. This example demonstrates solutions to all these common problems.
In this edition we have: Cxx-Qt Rust Bindings for Qt - Interview with Andrew Hayzen, KDAB, Squish 7.0 released,
Building Qt isn't that hard, and doing so helps you with more accurate position information when you debug your way in to Qt itself.
In this video I'll show you the steps required to do so.
When writing Qt ModelView models, should you check indexes in methods like rowCount? While Qt itself won't give you invalid indexes, you or coworkers might write broken proxies or interact incorrectly with models. This video presents macros to help validate indexes before using them.
Part 2 adds Firebase push notifications enabling the mobile app to receive messages even when not running. The tutorial covers reviewing part 1, addressing notification issues for closed apps, adding FirebaseAdminQt library for server functionality, creating a Firebase project, implementing push notifications, configuring the client app with Firebase C++ and FirebaseQt wrapper, and integrating everything with QML.
QMessageBox is missing a critical feature (IMHO): a "do not show again" button that makes Qt record my preference, so it doesn't ask me for my preference over and over again. In this episode, I'll implement a drop-in replacement that has this feature.
This video will demonstrate how to create both a mobile application and its web backend, using only Qt and C++ technologies.
Git supports running local scripts at different times, including during commits or pushes. This episode discusses useful hooks including preventing commits with FIXME's, ensuring use of specific classes like KDVTableView instead of QTableView, and avoiding QDate::currentDate which breaks unit tests.
There are a million different ways you can use git. Sometimes it's useful to look someone else over the shoulder and see how they do it. In this video I'll show you my workflow.
