QT5 lead to too big fonts

[efa]

switching from QT4 to QT5:
$ qtchooser -print-env
QT_SELECT="default"
QTTOOLDIR="/usr/lib/qt5/bin"
QTLIBDIR="/usr/lib/x86_64-linux-gnu"
$ export QT_SELECT=qt4 # switch to QT4
$ export QT_SELECT=qt5 # switch to QT5

lead to font that goes out of windows and dialog box, see attach.

This is LMDE4 (Debian 10 Buster)
QT5:

QT4:

[efa]

but can you see the entire writing with QT5?

[efa]

Welcome back Alberto!

I just build on Debian 12, where libqt4 is missing. The available package are:
qtbase5-dev
qtbase5-private-dev
qt-base6-dev
So please fix the note about install
libqt5-private-dev on https://github.com/alus-it/AirspaceConverter main page

Here defining:
QT_SELECT=qt4
lead to a compile error.
Defining to qt5 or left undefined, build using QT5.

Now the trouble is even worse than before, as the label of buttons are all cut, see attach

[efa]

just built last git sources on Debian 13.

QT4 is still missing:

$ export QT_SELECT=qt4
$ build.sh 
Building everything for Linux ...
Building AirspaceConverter shared library and CLI executable ...
Compiling: src/Airfield.cpp
Compiling: src/Altitude.cpp
Compiling: src/Airspace.cpp
Compiling: src/AirspaceConverter.cpp
Compiling: src/SeeYou.cpp
Compiling: src/Geometry.cpp
Compiling: src/KML.cpp
Compiling: src/OpenAIP.cpp
Compiling: src/OpenAir.cpp
Compiling: src/Polish.cpp
Compiling: src/RasterMap.cpp
Compiling: src/Waypoint.cpp
Compiling: src/CSV.cpp
Building shared library: Release/libairspaceconverter.so
Building executable: Release/airspaceconverter
Building AirspaceConverter Qt GUI ...
qmake: could not exec '/usr/lib/x86_64-linux-gnu/qt4/bin/qmake': No such file or directory
ERROR: Failed to run qmake.

With QT5 build well but still give the trouble of the text out of dialog

With QT6 (Debian 13 has default qt6-base-dev 6.8.2) I got this error:

$ export QT_SELECT=qt6
$ build.sh 
Building everything for Linux ...
Building AirspaceConverter shared library and CLI executable ...
Compiling: src/Airfield.cpp
Compiling: src/Altitude.cpp
Compiling: src/Airspace.cpp
Compiling: src/AirspaceConverter.cpp
Compiling: src/SeeYou.cpp
Compiling: src/Geometry.cpp
Compiling: src/KML.cpp
Compiling: src/OpenAIP.cpp
Compiling: src/OpenAir.cpp
Compiling: src/Polish.cpp
Compiling: src/RasterMap.cpp
Compiling: src/Waypoint.cpp
Compiling: src/CSV.cpp
Building shared library: Release/libairspaceconverter.so
Building executable: Release/airspaceconverter
Building AirspaceConverter Qt GUI ...
qmake: could not find a Qt installation of 'qt6'
ERROR: Failed to run qmake.

Will PR a new version of debianize.sh

[alus-]

So, can we close this one now?

[efa]

Actually, the binaries just compiled for QT5 (the only one supported) still show the problem with text coming out of the dialog box.
It could be a missing font on my system, and perhaps by choosing the most similar one, it's a bit wider and comes out of the windows. What font did you select in the code?

The AppImage package, however, works fine; I don't know what the difference is.

[alus-]

I did not selected any specific font just the default one already there in the QtCreator.

[efa]

Are you using Ubuntu?
On your distro the font are correctly shown, but at least on Debian are too large.
I suspect this is so for all using Linux, but I really want understand why happen (I remember QT4 work well).
We should ask to someone other that use other common distro like RH or Arch, if a fresh buid work correctly.
And also the AppImage work well also on Debian, strange.

Do you know what is the default font selected by QtCreator in windows and dialog?

This is the list of "default" fonts on Debian13, probably there are someone I added. Can you compare with your list?

$ dpkg --get-selections | grep ^font | sort
fontconfig-config				install
fontconfig					install
fonts-beng-extra				install
fonts-beng					install
fonts-cantarell					install
fonts-croscore					install
fonts-dejavu-core				install
fonts-dejavu-extra				install
fonts-dejavu					install
fonts-dejavu-mono				install
fonts-deva-extra				install
fonts-deva					install
fonts-droid-fallback				install
fonts-font-awesome				install
fonts-freefont-otf				install
fonts-freefont-ttf				install
fonts-gargi					install
fonts-glyphicons-halflings			install
fonts-gubbi					install
fonts-gujr-extra				install
fonts-gujr					install
fonts-guru-extra				install
fonts-guru					install
fonts-hack					install
fonts-indic					install
fonts-kacst					install
fonts-kacst-one					install
fonts-kalapi					install
fonts-knda					install
fonts-lao					install
fonts-lato					install
fonts-liberation2				install
fonts-liberation				install
fonts-liberation-sans-narrow			install
fonts-lklug-sinhala				install
fonts-lohit-beng-assamese			install
fonts-lohit-beng-bengali			install
fonts-lohit-deva				install
fonts-lohit-gujr				install
fonts-lohit-guru				install
fonts-lohit-knda				install
fonts-lohit-mlym				install
fonts-lohit-orya				install
fonts-lohit-taml-classical			install
fonts-lohit-taml				install
fonts-lohit-telu				install
fonts-lyx					install
fonts-mathjax					install
fonts-mlym					install
fonts-nakula					install
fonts-navilu					install
fonts-noto-cjk-extra				install
fonts-noto-cjk					install
fonts-noto-color-emoji				install
fonts-noto-core					install
fonts-noto-extra				install
fonts-noto-hinted				install
fonts-noto					install
fonts-noto-mono					install
fonts-noto-ui-core				install
fonts-noto-ui-extra				install
fonts-noto-unhinted				install
fonts-open-sans					install
fonts-opensymbol				install
fonts-orya-extra				install
fonts-orya					install
fonts-osifont					install
fonts-pagul					install
fonts-quicksand					install
fonts-sahadeva					install
fonts-samyak-deva				install
fonts-samyak-gujr				install
fonts-samyak-mlym				install
fonts-samyak-taml				install
fonts-sarai					install
fonts-sil-abyssinica				install
fonts-sil-annapurna				install
fonts-sil-padauk				install
fonts-smc-anjalioldlipi				install
fonts-smc-chilanka				install
fonts-smc-dyuthi				install
fonts-smc-gayathri				install
fonts-smc					install
fonts-smc-karumbi				install
fonts-smc-keraleeyam				install
fonts-smc-manjari				install
fonts-smc-meera					install
fonts-smc-rachana				install
fonts-smc-raghumalayalamsans			install
fonts-smc-suruma				install
fonts-smc-uroob					install
fonts-symbola					install
fonts-taml					install
fonts-telu-extra				install
fonts-teluguvijayam				install
fonts-telu					install
fonts-thai-tlwg					install
fonts-tibetan-machine				install
fonts-tlwg-garuda				install
fonts-tlwg-garuda-ttf				install
fonts-tlwg-kinnari				install
fonts-tlwg-kinnari-ttf				install
fonts-tlwg-laksaman				install
fonts-tlwg-laksaman-ttf				install
fonts-tlwg-loma					install
fonts-tlwg-loma-ttf				install
fonts-tlwg-mono					install
fonts-tlwg-mono-ttf				install
fonts-tlwg-norasi				install
fonts-tlwg-norasi-ttf				install
fonts-tlwg-purisa				install
fonts-tlwg-purisa-ttf				install
fonts-tlwg-sawasdee				install
fonts-tlwg-sawasdee-ttf				install
fonts-tlwg-typewriter				install
fonts-tlwg-typewriter-ttf			install
fonts-tlwg-typist				install
fonts-tlwg-typist-ttf				install
fonts-tlwg-typo					install
fonts-tlwg-typo-ttf				install
fonts-tlwg-umpush				install
fonts-tlwg-umpush-ttf				install
fonts-tlwg-waree				install
fonts-tlwg-waree-ttf				install
fonts-tuffy					install
fonts-unifont					install
fonts-urw-base35				install
fonts-wine					install
fonts-yrsa-rasa					install

[alus-]

The used (and default) font for the buttons is "Sans Serif" of size 9, normal not in bold.

[efa]

OK I added the only 6 fonts that was missing in my system compared to your that show OK:
$ sudo apt install fonts-gfs-baskerville fonts-gfs-porson fonts-lmodern fonts-texgyre fonts-texgyre-math fonts-ubuntu
rebuild the GUI, but still text goes outside buttons and label space. Nice try Valerio

[efa]

here attached the different results:

on the left the GUI with just built sources and text clearly too big,
on the right the GUI with AppImage from Release/CI generated on Ubuntu 24.04 (but its good also the result with the one generated on my Debian).
I do not know what is the difference and why happen!
Memo: when there was QT4, I saw the fonts correctly