[Tile-dev] Proposal: add/remove/forget methods for notebook and panedwindow

[Joe E. <jen...@fl...>]

Bug #1614361 got me to thinking about a potential improvement
for how the ttk::notebook and ttk::panedwindow widgets manage
their children.

The current API is:

	$nb add $win [ ... options ... ]
	    Manage $win as a slave and add it to the end of the list.
	    It is an error if $win is already managed by $nb.

	$nb forget $tabid
	    Unmanages $tabid; $tabid is either the widget path
	    of a managed slave, an integer index, or one of
	    the other syntactic forms described in "TAB IDENTIFIERS".

There's also an [$nb insert ...] command, which can add tabs
at a specific position or move existing tabs around.  The
panedwindow supports the same interface (with a couple minor
differences).

Proposed change:

	$nb remove $win
	    Unmaps the slave window $win but leave it managed.
	    If $win is not currently managed by $nb, do nothing.

	$nb add $win [... options ...]
	    Manage $win as a slave and add it to the end of the list
	    if it is not currently managed by $nb.  Remap $win at
	    its previous position if it is currently managed by $nb
	    but unmapped.  Do nothing if it is already mapped and managed.

	$nb forget $win
	    Unmap and unmanage $win.  Do nothing if $win is not
	    currently managed by $nb.

... and the same thing for panedwindow widgets.

[$nb remove $win] would do basically the same thing that
[$nb tab $win -state hidden] currently does (just implemented
differently); the latter could eventually be phased out.

The only incompatibility would be that [$nb forget] would only
take window names, not arbitrary tab identifiers.

Opinions?


--Joe English

  jen...@fl...