[Gambas-bugtracker] Bug #2674: ide with qt5 using different font while editing a line

[bugtracker at gambaswiki.org]

http://gambaswiki.org/bugtracker/edit?object=BUG.2674&from=L21haW4-

Bruce STEERS reported a new bug.

Summary
-------

ide with qt5 using different font while editing a line

Type             : Bug
Priority         : High
Gambas version   : Master
Product          : Development Environment


Description
-----------

When using QT5 with gambas IDE i find when i am editing a line it shows a smaller font than when it is not edited.
this seems to be confusing the line formatting.
I experienced the same thing trying to use gambas with wayland the other day and assumed it was a wayland problem but on trying the ide with qt5/x11 i have the problem here too.

It renders the IDE text editor unusable.
to follow is a clip...

Respects


System information
------------------

[System]
Gambas=3.17.90 198972068 (bruces-patched)
OperatingSystem=Linux
Kernel=5.15.0-56-generic
Architecture=x86_64
Distribution=Linux Mint 21 Vanessa
Desktop=MATE
Font=Ubuntu,10
Scale=7
Theme=industrial
Language=en_GB.UTF-8
Memory=7883M

[Libraries]
Cairo=libcairo.so.2.11600.0
Curl=libcurl.so.4.7.0
DBus=libdbus-1.so.3.19.13
GDK2=libgdk-x11-2.0.so.0.2400.33
GDK3=libgdk-3.so.0.2404.29
GStreamer=libgstreamer-1.0.so.0.2003.0
GTK+2=libgtk-x11-2.0.so.0.2400.33
GTK+3=libgtk-3.so.0.2404.29
OpenGL=libGL.so.1.7.0
Poppler=libpoppler.so.118.0.0
QT5=libQt5Core.so.5.15.3
SDL=libSDL-1.2.so.0.11.4
SQLite=libsqlite3.so.0.8.6

[Environment]
CLUTTER_BACKEND=x11
CLUTTER_IM_MODULE=ibus
COMPIZ_CONFIG_PROFILE=mint
DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/1000/bus
DEFAULTS_PATH=/usr/share/gconf/mate.default.path
DESKTOP_SESSION=mate
DISPLAY=:0
GB_GUI=gb.gtk3
GDMSESSION=mate
GDM_LANG=en_GB
GIO_LAUNCHED_DESKTOP_FILE=<home>/.local/share/applications/Desktop-ish.desktop
GIO_LAUNCHED_DESKTOP_FILE_PID=128209
GPG_AGENT_INFO=/run/user/1000/gnupg/S.gpg-agent:0:1
GTK3_MODULES=xapp-gtk3-module
GTK_IM_MODULE=ibus
GTK_MODULES=gail:atk-bridge
GTK_OVERLAY_SCROLLING=0
HOME=<home>
LANG=en_GB.UTF-8
LANGUAGE=en_GB.UTF-8
LC_ADDRESS=en_GB.UTF-8
LC_ALL=en_GB.UTF-8
LC_IDENTIFICATION=en_GB.UTF-8
LC_MEASUREMENT=en_GB.UTF-8
LC_MONETARY=en_GB.UTF-8
LC_NAME=en_GB.UTF-8
LC_NUMERIC=en_GB.UTF-8
LC_PAPER=en_GB.UTF-8
LC_TELEPHONE=en_GB.UTF-8
LC_TIME=en_GB.UTF-8
LOGNAME=<user>
MANDATORY_PATH=/usr/share/gconf/mate.mandatory.path
MATE_DESKTOP_SESSION_ID=this-is-deprecated
PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin
PWD=<home>
QT_ACCESSIBILITY=1
QT_FONT_DPI=96
QT_IM_MODULE=ibus
QT_QPA_PLATFORMTHEME=qt5ct
QT_SCALE_FACTOR=1
SESSION_MANAGER=local/<hostname>:@/tmp/.ICE-unix/1034,unix/<hostname>:/tmp/.ICE-unix/1034
SHELL=/bin/bash
SHLVL=0
SSH_AUTH_SOCK=/run/user/1000/keyring/ssh
TZ=:/etc/localtime
USER=<user>
XAUTHORITY=<home>/.Xauthority
XDG_CONFIG_DIRS=/etc/xdg/xdg-mate:/etc/xdg
XDG_CURRENT_DESKTOP=MATE
XDG_DATA_DIRS=/usr/share/mate:/usr/share/mate:/usr/share/gnome:<home>/.local/share/flatpak/exports/share:/var/lib/flatpak/exports/share:/usr/local/share:/usr/share
XDG_GREETER_DATA_DIR=/var/lib/lightdm-data/<user>
XDG_RUNTIME_DIR=/run/user/1000
XDG_SEAT=seat0
XDG_SEAT_PATH=/org/freedesktop/DisplayManager/Seat0
XDG_SESSION_CLASS=user
XDG_SESSION_DESKTOP=mate
XDG_SESSION_ID=c1
XDG_SESSION_PATH=/org/freedesktop/DisplayManager/Session0
XDG_SESSION_TYPE=x11
XDG_VTNR=7
XMODIFIERS=@im=ibus
_=/usr/bin/gambas3