This feature allows for expressions to be embedded directly inside
legend item text (e.g. group, subgroup and item text). The expressions
are evaluated at render time, with full knowledge of the legend's
expression context (so can utilise variables from the layout/layout item/
etc)
There's no UI for this yet (that will come in 3.8), but expressions are
entered using the standard [% 1 + 2 %] format.
E.g. a legend item text of
My layer (rendered at 1:[% @map_scale %])
will show in the output as
My layer (renderer at 1:1000)
A new checkbox has been added to the legend settings to control
whether or not a legend should be automatically resized to fit
its contents.
If unchecked, then the legend will never resize and instead just
stick to whatever size the user has set. Any content which
doesn't fit the size is cropped out.
Refs #10556
On behalf of Faunalia, sponsored by ENEL
When a legend was set to filter content by map, it wasn't
consistently being resized to fit the legend contents. This caused
issues for atlas exports where legends could grow but never
shrink.
Fix#14707
On behalf of Faunalia, sponsored by ENEL
