[Gambas-user] Paint misbehaves on QT when a ValueBox.value is changed (v3.5.4)

[T Lee Davidson]

If a form's ValueBox.value is modified, subsequent Paint'ing on a cached 
DrawingArea of the form doesn't produce the draw when the gb.qt4 
component is loaded. It does work if, instead, the gb.gtk component is 
manually selected in the project. Trying to set the focus back to the 
DrawingArea, "DrawingArea1.SetFocus", after modifying the ValueBox.value 
did not help.

I have attached an archive of a sample project that shows this.

Also, the sample project contains two methods to clear the DrawingArea, 
because what works for GTK does not work for QT.

Is this a bug, or am I doing something wrong?


Thanks for any help,
Lee


P.S. "System informations" reports the Theme as "Oxygen" no matter what 
desktop theme I have enabled. I have tried the sample project with Air, 
Aya, Oxygen, and QtCurve-Luna.


[System]
Gambas=3.5.4
OperatingSystem=Linux
Kernel=3.10.54-desktop-2.mga3
Architecture=x86
Distribution=Mageia 3
Desktop=KDE4
Theme=Oxygen
Language=en_US.UTF-8
Memory=1005M
[Libraries]
Cairo=libcairo.so.2.11200.12
Curl=libcurl.so.4.3.0
DBus=libdbus-1.so.3.7.2
GStreamer=libgstreamer-0.10.so.0.30.0
GStreamer=libgstreamer-1.0.so.0.5.0
GTK+=libgtk-x11-2.0.so.0.2400.17
OpenGL=libGL.so.1.2.0
Poppler=libpoppler.so.34.0.0
Qt4=libQtCore.so.4.8.6
SDL=libSDL-1.2.so.0.11.4

-------------- next part --------------
A non-text attachment was scrubbed...
Name: DrawingTest-0.0.1.tar.gz
Type: application/x-gzip
Size: 5379 bytes
Desc: not available
URL: <http://lists.gambas-basic.org/pipermail/user/attachments/20141009/e2067116/attachment.bin>