double click between column headers to autoresize does not take header size into consideration

[gdementen]

it only takes the data into consideration (while it should use both header and data), and if the header size is larger than the data, it is annoying, because the header text is not entirely visible.

[gdementen]

somehow this problem is still present

[gdementen]

More precisely, it works for the first column(s) (the label columns), but not the data columns. If the header length is longer than the width for data cell, it is not shown entirely. For testing, we can use:

arr = zeros('a=a_long_label,another_long_label')