[Gambas-bugtracker] Bug #3119: Memory leak in TextArea control

[<bugtracker@xxxxxxxxxxxxxx>]

http://gambaswiki.org/bugtracker/edit?object=BUG.3119&from=L21haW4-

Zach SMITH reported a new bug.

Summary
-------

Memory leak in TextArea control

Type             : Bug
Priority         : Medium
Gambas version   : 3.20
Product          : GUI components


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

Create a graphical application with a Timer and a TextArea control and use the code listed below. Enable the timer and run. When I watch memory usage for a few minutes, I see usage increase by about 1 MB per minute. The app leaks only on my Manjaro Cinnamon system (see system information) but not on my Manjaro KDE system.

=====

Public Sub Timer1_Timer()

  If TextArea1.Text = "A" Then
    TextArea1.Text = "B"
  Else
    TextArea1.Text = "A"
  End If

End


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

[System]
Gambas=3.21.1
OperatingSystem=Linux
Distribution=Manjaro Linux
Kernel=6.6.119-1-MANJARO
Architecture=x86_64
Cores=4
Memory=15859M
Language=en_US.UTF-8
Platform=x11
Desktop=CINNAMON
DesktopResolution=96
DesktopScale=7
WidgetTheme=mint-l-teal
Font=Adwaita Sans,10
DarkTheme=False
[Programs]
gcc=gcc (GCC) 15.2.1 20251112
git=git version 2.52.0
msgmerge=msgmerge (GNU gettext-tools) 0.26
[Libraries]
Cairo=libcairo.so.2.11804.4
Curl=libcurl.so.4.8.0
DBus=libdbus-1.so.3.38.3
GDK3=libgdk-3.so.0.2419.32
GStreamer=libgstreamer-1.0.so.0.2609.0
GTK+3=libgtk-3.so.0.2419.32
OpenGL=libGL.so.1.7.0
Poppler=libpoppler.so.155.0.0
QT5=libQt5Core.so.5.15.18
QT6=libQt6Core.so.6.10.1
RSvg=librsvg-2.so.2.61.3
SDL=libSDL2-2.0.so.0.3200.60
SQLite3=libsqlite3.so.3.51.1
[Environment]
CINNAMON_VERSION=6.6.2
DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/1000/bus
DEBUGINFOD_URLS=https://debuginfod.archlinux.org
DESKTOP_SESSION=cinnamon
DISPLAY=:0
GB_GUI=gb.gtk3
GDMSESSION=cinnamon
GIO_LAUNCHED_DESKTOP_FILE=/usr/share/applications/gambas3.desktop
GIO_LAUNCHED_DESKTOP_FILE_PID=1694378
GJS_DEBUG_OUTPUT=stderr
GJS_DEBUG_TOPICS=JS ERROR;JS LOG
GNOME_DESKTOP_SESSION_ID=this-is-deprecated
GTK3_MODULES=xapp-gtk3-module
GTK_MODULES=canberra-gtk-module
HOME=<home>
LANG=en_US.UTF-8
LANGUAGE=en_US.UTF-8
LC_ADDRESS=en_US.UTF-8
LC_IDENTIFICATION=en_US.UTF-8
LC_MEASUREMENT=en_US.UTF-8
LC_MONETARY=en_US.UTF-8
LC_NAME=en_US.UTF-8
LC_NUMERIC=en_US.UTF-8
LC_PAPER=en_US.UTF-8
LC_TELEPHONE=en_US.UTF-8
LC_TIME=en_US.UTF-8
LOGNAME=<user>
MAIL=/var/spool/mail/<user>
MOTD_SHOWN=pam
PATH=<home>/.local/bin:/usr/local/bin:/usr/bin:/bin:/usr/local/sbin:/usr/bin/site_perl:/usr/bin/vendor_perl:/usr/bin/core_perl
PWD=<home>
QT_LOGGING_RULES=*.debug=false
SAL_USE_VCLPLUGIN=gtk
SESSION_MANAGER=local/<hostname>:@/tmp/.ICE-unix/1390,unix/<hostname>:/tmp/.ICE-unix/1390
SHELL=/usr/bin/bash
SHLVL=0
TZ=:/etc/localtime
USER=<user>
XAUTHORITY=<home>/.Xauthority
XDG_ACTIVATION_TOKEN=cinnamon/Gambas 3/1670-2-<hostname>_TIME1237287278
XDG_CURRENT_DESKTOP=X-Cinnamon
XDG_DATA_DIRS=<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=cinnamon
XDG_SESSION_ID=1
XDG_SESSION_PATH=/org/freedesktop/DisplayManager/Session0
XDG_SESSION_TYPE=x11
XDG_VTNR=7



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