Bug 421604

Summary:	Changing Layout.preferredWidth doesn't resize an applet
Product:	[Plasma] Plasma SDK	Reporter:	NSLW <lukasz.wojnilowicz>
Component:	plasmoidviewer	Assignee:	Plasma Bugs List <plasma-bugs>
Status:	REPORTED ---
Severity:	normal	CC:	giorgos.tsiapaliokas
Priority:	NOR
Version:	unspecified
Target Milestone:	---
Platform:	Other
OS:	Linux
Latest Commit:		Version Fixed In:
Attachments:	test case Screencast of the issue

Description NSLW 2020-05-16 09:39:31 UTC

Created attachment 128504 [details]
test case

SUMMARY

I change Layout.preferredWidth of the applet dynamically at a given time interval but it apparently can't be seen when run in plasmoidviewer.

Size changes can bee seen properly though, if the applet is docked in desktop's task bar.


STEPS TO REPRODUCE
1. download and unpack my test case
2. run install-and-run-plasmoid.sh
3. plasmoidviewer should appear and org.kde.tutorial should be installed
4. add org.kde.tutorial applet to your desktop taskbar

OBSERVED RESULT
See attached video.

EXPECTED RESULT
The applet in plasmoidviewer should resize itself the same way as it resizes itself in the taskbar.


SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Fedora 32
KDE Plasma Version: 5.18.3
KDE Frameworks Version: 5.68
Qt Version: 5.13.2

ADDITIONAL INFORMATION
1) I read at
https://zren.github.io/kde/docs/widget/
how to emulate in plasmoidviewer, an applet in a taskbar.
2) I start my plasmoid by
plasmoidviewer --formfactor horizontal --location bottom --applet org.kde.tutorial

Comment 1 NSLW 2020-05-16 09:40:21 UTC

Created attachment 128505 [details]
Screencast of the issue

Comment 2 NSLW 2020-05-16 09:54:42 UTC

There is a workaround for this issue. One needs to insert
"main.parent.parent.width = widgetWidth"
in the timer's body in order to get a dynamically resizeable applet in plasmoidviewer.