On 15/10/2009, at 5:24 PM, Peter Hudson wrote:
The user has an NSTableView in which is presented a number of
elements ( 1 per row, typically 20 - 200 rows ) out of which they
need to produce a number of sequenced sub groups.
The user presses the 'Start Sub Group' key ( i.e. clear the sequence
selection cache ) and then by picking a possible sequence ( one row/
element at a time ) they build a group.
As the group is selected, further info about that particular sub
group of elements is presented.
They can close/abort/store a given sub group at any time.
That does make some sense, but falls into the trap of not avoiding
modes (in this case a "build subgroup" mode).
If it were me, I'd have two lists: a master list and a sub-group list.
Drag items from the master to the group, and allow drag reordering of
the group to set the sequence. As a short-cut you could allow a double-
click on an item in the master list to add it to the end of the
subgroup, which almost duplicates the current approach but with a
double-click instead of a single, yet avoids the mode.
Just a thought ;-)
--Graham
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