If QT_VERSION is not defined, it gets define with the AUTO value. And
its definition is moved to the helper file.
find_qt now:
- Check quietly for Qt5 and Qt6
- If QT_VERSION is set to AUTO. It checks firstly if Qt5 was found it
will use it. If not it do the same for Qt6
- If QT_VERSION is set to 5 or 6, it checks if the choice was found and
use it. And if not, it falls back to the other if found.
- If neither Qt5 or Qt6 are found, a fatal error is emitted.
- The macro saved the _QT_VERSION in the cache to replace QT_VERSION,
so the process is not repeated each time that find_qt is used.
- When Qt::Gui is in the Linux component list, Qt::GuiPrivate is added.
So using the versioned one is no longer required.
Due to how CMake and generated project files are structured, just using
AUTOUIC to pick up Qt `.ui` files will lead to a situation where
changing such a file doesn't trigger a regeneration of the associated
header files and thus a re-build of the target.
Upstream fix still requires `.ui` files to be added as target sources.
CMake issue: https://gitlab.kitware.com/cmake/cmake/-/issues/17959
Qt5X11Extras (QX11Info) was added in
762983b5d853ba8444c4efee450ea872b294060e, but it doesn't seem to
actually be used. Qt6 doesn't yet ship X11Extras, so let's remove it.
Ignore wheelEvent using subclass
slider,spinbox,combobox with eventhandlers:
wheelEvent - ignore if widget is not focused,
leaveEvent - clear focus when mouse leaves event.
Use these new subclass widgets in properties
to ignore wheelEvent when scrolling.
