Qt6 port

[tsujan]

@stefonarch Please check all kinds of screenshots as well as Edit in... and saving under X11.

[Chiitoo]

Similar to somewhere else, I hit a few header issues in core.cpp and in extedit.h:

src/core/core.cpp:33:10: fatal error: qt5xdg/XdgDesktopFile: No such file or directory
   33 | #include <qt5xdg/XdgDesktopFile>
      |          ^~~~~~~~~~~~~~~~~~~~~~~

Also, my mouse pointer does not seem to get included when the option is enabled, but I'm not sure if that worked before?

Thank you!

[stefonarch]

Also, my mouse pointer does not seem to get included when the option is enabled, but I'm not sure if that worked before?

This did work before, tested under debian VM with 1.4 now. Retesting...

EDIT: mouse cursor is included here, both in fullscreen and window mode.

[tsujan]

@stefonarch Please check again. I removed "USE_QT..." and fixed the header of qt6xdg.

[Chiitoo]

Forgot to mention that was on KWin X11, and yeah, I see it now too, in another clean-user session.

This other session might be a bit... slightly messed up right now but I'll try to see what is going on with the cursor later.

[tsujan]

@Chiitoo Please test it again (I added a commit).

Similar to somewhere else,...

Yes. Supporting two versions of Qt — even in the minimal way we do it (only for styling and file dialog) — can be confusing. It should be fixed now.

[Chiitoo]

@Chiitoo Please test it again (I added a commit). Yes. Supporting two versions of Qt — even in the minimal way we do it (only for styling and file dialog) — can be confusing. It should be fixed now.

Indeed!

All good now here too.

[tsujan]

@Chiitoo Thanks! Your tests have saved us a lot of headache twice :)

[tsujan]

Will merge it tomorrow, after re-reading the changes.