[Gambas-user] (GambasGuiGtk3:30551): Gtk-CRITICAL **: 16:14:18.971: gtk_box_gadget_distribute: assertion 'size >= 0' failed in GtkCheckButton

[ssepanus]

Re-create:

 ?????? Use gb.Gtk3, add CheckBox with no Text, shrink width to 21 so that 
name of control does not appear at design-time.

(Note: using label to left instead of control Text to right.) Run app, 
see error in IDE console (although app may run normally).

(Note: re-created in test project and made additional observation that 
if Text property IS set, then error occurs if control width is not large 
enough that all of Text is visible)

Message:

 ?????? "(GambasGuiGtk3:30551): Gtk-CRITICAL **: 16:14:18.971: 
gtk_box_gadget_distribute: assertion 'size >= 0' failed in GtkCheckButton"

Work-around:

 ?????? Increase control width to 28, OR so that some tiny portion of 
control name is visible at design-time.

Info:

[System]
Gambas=3.14
OperatingSystem=Linux
Kernel=4.15.0-66-generic
Architecture=x86_64
Distribution=Linux Mint 19.2 Tina
Desktop=CINNAMON
Theme=Gtk
Language=en_US.UTF-8
Memory=7917M

[Libraries]
Cairo=libcairo.so.2.11510.0
Curl=libcurl.so.4.5.0
DBus=libdbus-1.so.3.19.4
GStreamer=libgstreamer-1.0.so.0.1405.0
GTK+2=libgtk-x11-2.0.so.0.2400.32
GTK+3=libgtk-3.so.0.2200.30
OpenGL=libGL.so.1.0.0
Poppler=libpoppler.so.73.0.0
QT4=libQtCore.so.4.8.7
QT5=libQt5Core.so.5.9.5
SDL=libSDL-1.2.so.0.11.4
SQLite=libsqlite3.so.0.8.6

[Environment]
CINNAMON_VERSION=4.2.4
DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/1000/bus
DEFAULTS_PATH=/usr/share/gconf/cinnamon.default.path
DESKTOP_SESSION=cinnamon
DISPLAY=:0
GB_GUI=gb.qt4
GDMSESSION=cinnamon
GDM_LANG=en_US
GIO_LAUNCHED_DESKTOP_FILE=/usr/share/applications/gambas3.desktop
GIO_LAUNCHED_DESKTOP_FILE_PID=25938
GJS_DEBUG_OUTPUT=stderr
GJS_DEBUG_TOPICS=JS ERROR;JS LOG
GNOME_DESKTOP_SESSION_ID=this-is-deprecated
GPG_AGENT_INFO=/run/user/1000/gnupg/S.gpg-agent:0:1
GTK_MODULES=gail:atk-bridge
GTK_OVERLAY_SCROLLING=1
HOME=<home>
LANG=en_US.UTF-8
LANGUAGE=en_US.UTF-8
LOGNAME=<user>
MANDATORY_PATH=/usr/share/gconf/cinnamon.mandatory.path
PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:<home>/.dotnet/tools
PWD=<home>
QT_ACCESSIBILITY=1
QT_QPA_PLATFORMTHEME=qt5ct
SESSION_MANAGER=local/<hostname>:@/tmp/.ICE-unix/1468,unix/<hostname>:/tmp/.ICE-unix/1468
SHELL=/bin/bash
SHLVL=0
SSH_AGENT_PID=1559
SSH_AUTH_SOCK=/run/user/1000/keyring/ssh
S_COLORS=auto
TZ=:/etc/localtime
USER=<user>
XAUTHORITY=<home>/.Xauthority
XDG_CONFIG_DIRS=/etc/xdg/xdg-cinnamon:/etc/xdg
XDG_CURRENT_DESKTOP=X-Cinnamon
XDG_DATA_DIRS=/usr/share/cinnamon:/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_DESKTOP=cinnamon
XDG_SESSION_ID=c3
XDG_SESSION_PATH=/org/freedesktop/DisplayManager/Session0
XDG_SESSION_TYPE=x11
XDG_VTNR=7


-------------- next part --------------
A non-text attachment was scrubbed...
Name: checkbox_bad.png
Type: image/png
Size: 2111 bytes
Desc: not available
URL: <https://lists.gambas-basic.org/pipermail/user/attachments/20191025/17a8e892/attachment-0002.png>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: checkbox_ok.png
Type: image/png
Size: 2295 bytes
Desc: not available
URL: <https://lists.gambas-basic.org/pipermail/user/attachments/20191025/17a8e892/attachment-0003.png>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: Gtk3CheckBoxBug.zip
Type: application/zip
Size: 14170 bytes
Desc: not available
URL: <https://lists.gambas-basic.org/pipermail/user/attachments/20191025/17a8e892/attachment-0001.zip>