uicontrol(table): it is not possible to sort lines by clicking on a column header
Reported by Samuel GOUGEON (@sgougeon)
BUG DESCRIPTION:
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Presently, it is possible to click on a column's header, it looks active, but nothing is actually done.
Being able to sort the table according to values in one chosen column would be useful.
However, for now, contents are strings, even when they represent numbers.
The most general and efficient strategy to implement a sort could be to use the general
"callback" property and to allow setting a vector of callback strings associated to
the series of columns (including the 1st column).
Then, the user could implement the sorting that he/she exactly wants, for each column.
The mechanism must allow to get in the callback function
a) the handle of the ui.table
b) the number of the column that has been clicked.