[Gambas-bugtracker] Bug #3242: Highlighter issue

[<bugtracker@xxxxxxxxxxxxxx>]

http://gambaswiki.org/bugtracker/edit?object=BUG.3242&from=L21haW4-

Bruce STEERS reported a new bug.

Summary
-------

Highlighter issue

Type             : Bug
Priority         : Medium
Gambas version   : Master
Product          : Unknown


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

I have a highlighter issue.

Hard to explain but it looks like a line drawing re-paint the lines background on the or something? or it darkens it?

If you look at the attached video you can see what happens when i scroll the page sideways.

What appears to be happening is if a line has text visible on the page that needs highlighting it darkens the line background, but not if it has no text.
so the background of the lines changes as you scroll..


I have attached the UseEdit program it happens with.
It's odd because it does not seem to happen with gambas highlighting.
My program uses a custom sh highlighting file that allows Limits (or close to it)

It defines a Limit between text like "CommandName() {"  and a line with just a "}". it has caveats but generally works if i stick to the syntax of finishing a function using } on a separate line. (Downside is the } line becomes a Limit too, but i can handle that with code)

The lines background color changing/darkening is an issue though.


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

[System]
Gambas=3.22.99 65e2aaffc (bruces-patched)
OperatingSystem=Linux
Distribution=Linux Mint 22.3 (Zena)
Kernel=7.0.0-38-generic
Architecture=x86_64
Cores=8
Memory=15834M
Language=en_GB.UTF-8
Platform=x11
Desktop=MATE
DesktopResolution=96
DesktopScale=10
WidgetTheme=adwaita
Font=Ubuntu,14
DarkTheme=False
[Programs]
appimage-builder=appimage-builder: 1.1.0
dpkg=Debian 'dpkg' package management program version 1.22.6 (amd64).
gcc=gcc (Ubuntu 13.3.0-6ubuntu2~24.04.1) 13.3.0
git=git version 2.43.0
msgmerge=msgmerge (GNU gettext-tools) 0.21
[Libraries]
Cairo=libcairo.so.2.11800.0
Curl=libcurl.so.4.8.0
DBus=libdbus-1.so.3.32.4
GDK2=libgdk-x11-2.0.so.0.2400.33
GDK3=libgdk-3.so.0.2409.32
GStreamer=libgstreamer-1.0.so.0.2402.0
GTK+2=libgtk-x11-2.0.so.0.2400.33
GTK+3=libgtk-3.so.0.2409.32
OpenGL=libGL.so.1.7.0
Poppler=libpoppler.so.134.0.0
QT5=libQt5Core.so.5.15.13
QT6=libQt6Core.so.6.4.2
RSvg=librsvg-2.so.2.50.0
SDL=libSDL2-2.0.so.0.3000.0
SQLite3=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
DESKTOP_SESSION=mate
DISPLAY=:0
GB_GUI=gb.gtk3
GDMSESSION=mate
GDM_LANG=en_GB
GNOME_KEYRING_CONTROL=/run/user/1000/keyring
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_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>
MATE_DESKTOP_SESSION_ID=this-is-deprecated
PAPERSIZE=a4
PATH=<home>/.local/bin:/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/2215,unix/<hostname>:/tmp/.ICE-unix/2215
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:/var/lib/snapd/desktop
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



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