[Octave-bug-tracker] [bug #57260] scatter plot legend different from previous releases

[Pantxo Diribarne]

Follow-up Comment #1, bug #57260 (project octave):

I would like to have a more robust way to determine how to handle legend item
for special and/or compound hgroup objects in Octave.

For example we could define hidden hggroup properties
"__create_legend_item_fcn__" and "__update_legend_item_fcn__". It would then
be the responsability of scatter.m, stem.m, ..., to populate these properties
so that legend doesn't have to know anything about the object it is labeling.


The prototype of those functions could be:


hitem  = __create_legend_item_fcn__ (h_hggroup_obj)
  ## Create necessary item objects. Add listeners to target
  ## h_hggroup_obj object. Return a handle to an hitem objects.
endfunction 


and


__update_legend_item_fcn__ (hitem, [x0, x1, y0, y1])
  ## Handle the position of the existing hitem object based on
  ## the coordinates of a rectangular region.
endfunction 



Thoughts?

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