In addition to replacing Qt5 with Qt6 in CMakeLists.txt
two small changes to the code are needed to make things build
on Qt 6 (which in turn is needed for Apple M1/M2 support).
The cost of this change is that when building on Qt 5, at least
version 5.14 is needed.
Certain older but still used Linux distributions such as
Ubuntu 10.04 LTS still use 5.12, so revert this commit if you
are building on those...
- Reduce platform specific code in ImageWriter class,
and move that to seperate classes.
- Use API calls to get current SSID on Windows and Linux instead
of launching command line utilities.
Instead of using 'pi' as default, try to get the username of
the current user from the OS.
May not always work. (e.g. some Windows users may not have
setup a username themselves, but may be using a default user
created by the PC vendor).
Closes#497
In the "advanced settings" dialog, if "X" instead of
"apply settings" is clicked, it is seen as "cancel" and
no settings are applied.
If there do are saved settings, make sure to ask the
user on pressing "write" if they do want the saved settings
applied, instead of applying no settings.
Implemented as "validator" which will cause that if an user
presses a key that is not allowed, it will not register.
Saves having to add an error message that would need to be
translated to different languages.
Closes#474
