General and Desktop

@orsini29 Found it.. super simple and knew I'd kick myself over it. For anyone in the future, you need to use series->setLabelsFormat("@value enter text here"); Documentation: https://doc.qt.io/qt-6/qabstractbarseries.html#labelsFormat-prop

@Ylvy said in Qt DllMain doesn't get called: what you mean mix debug and release build? I mean that if your application is built in debug mode you can't load DLLs built in release mode

In the end I refactored mediator QtObject from QML into a C++ QObject. However, I am surprised sender() returns NULL. Maybe it is so because I connect slots in QML with Connections on mediator instance set as a context property. Perhaps if I were to use QObject::connect() in C++ instead, sender() might have worked as expected.

@kshegunov I have ~80 classes, each with 5-10 different properties (enums, POD, custom types, containers). The problem are all implicit (in a loop) conversions of these properties.

@johnco3 I'm afraid I know nothing about std::variant, but a couple of observations. Your setData() is void. QStandardItemModel's is bool. Have you checked the return result when you call that, you never know if it might be barfing? Your setData() defaults to Qt::UserRole + 1. How does your item->data().value<PortVariant>() pass that role to fetch? setData() copies its argument. I assume the equivalent code to test would be something like: PortVariant portVariant = port; QVariant v = QVariant::fromStdVariant(portVariant); QVariant v2 = v1; const auto& portVariant = v2.value<PortVariant>(); How does that come out? You might also call QVariant::canConvert<>() to check, including on your item->data(). I assume all the various component types in your structs are serializable to QVariant without further registration.

@Chris-Kawa Thanks for the quick reply! It might be helpful, I will think whether I can use it to my advantage.

Update to the DeprecationWarning: Using QLibraryInfo.path(QLibraryInfo.LibraryPath.TranslationsPath) the warning is gone.

@MasterQ said in Q_Property and reference data type: Why is "const" dropped? Because you were trying to return a non-const reference to a const object.

@AnneRanch Copy the class (cpp, h and ui) and add the changes you want to.

@SimonSchroeder Hello friend, I tried to do what you mention, but when querying this->windowHandle(); the result is always a nullptr.

Never mind, I found out I needed to add to use setSceneRect() on the QGraphicsView window. I also found out that using Items instead of regular QRects allow moving allows moving the rectangle easily.

@Anthony-Abboud Both the issues @SGaist has mentioned. And when do you call readAllStandardError(), do you wait for the process to finish first? m_processUpdatesChecker->start("/bin/sh", QStringList() << "-c" << "'journalctl -q -u aktualizr* | grep \"Update available\"'"); Enclosing the argument to -c inside its own 's (single-quotes) is wrong. Remove those to make this work. m_processUpdatesChecker->start("journalctl", QStringList() << "-q" << "-u aktualizr*"); -u aktualizr* should not be a single argument.

@Taytoo said in [Multilingual UI and Fonts?]: Wouldn't that just set specified font for all widgets? I'like to substitute different fonts. I use three font styles so need to substitute them accordingly e.g. Font A -> B, Font X -> Y, Font J -> K Indeed, my bad, I misunderstood the scope of your issue.

And fixed

@Mihaill Show some minimal code, including your filterAcceptsRow() override with a qDebug() showing it is not called. Calling just sort(0) will not cause the filter to be re-evaluated. Ultimately QSortFilterProxyModel::invalidate(), QSortFilterProxyModel::invalidateFilter() or QSortFilterProxyModel::invalidateRowsFilter() must be called for filterAcceptsRow() to get invoked. setFilterRegualrExpression() will call these. And for your tree model both dynamicSortFilter and recursiveFilteringEnabled may be relevant to when re-filtering/calling filterAcceptsRow() gets done.

@Pl45m4 , @JonB , @JoeCFD Many thanks for your feedback :)

If you are using cmake another option will be to use a package manager like vcpkg or conan. This will save you a lot of effort compiling the libs and setting everything up.