Hi,
Have you tried the 'sizeChanged' signal?
Also, have a look at the QgsComposerItemWidget class, specifically this
function:
https://github.com/qgis/QGIS/blob/master/src/app/composer/qgscomposeritemwidget.cpp#L378.
It might contain some pointers for your use case.
All the best.
Regards,
John
Hi. I'm working on a plugin for the Composer, but it seems that few people
are interested in this aspect of QGIS, so I rarely get answers to my
difficulties on stackexchange (
http://gis.stackexchange.com/questions/174648/how-to-use-itemchanged-signal-to-update-data
).
I need to to call a function
