@ How do I set the font of individual Scrolling List items?
PANEL_LIST_FONT takes an int row_number and an Xv_opaque font_handle.
PANEL_LIST_FONTS take a NULL terminated list of Xv_opaque font_handles.
There is no easy way to make an entire list fixed width font.
You have to make sure that you always specify PANEL_LIST_FONT when you
insert a new row into that list, or write a convenience function
insert_row(list, row, string) that hides the nasty bits.
The most efficient way to do this involves creating an Xv_attr array
to do lots of insertions at once, complete with PANEL_LIST_FONTs.
If you give both PANEL_LIST_STRING and PANEL_LIST_FONT in the same
xv_set() call, PANEL_LIST_STRING must be given first, or the default
font will be used.
@ How do I set the selected item of an exclusive list with required choice?
If you have a PANEL_LIST with a required choice, and the list is
exclusive, you must de-select the old item and select the new one in
a single xv_set() call, for example:
PANEL_CHOOSE_ONE, TRUE, /* only one entry can be selected */
PANEL_CHOOSE_NONE, FALSE, /* one entry must be selected */
PANEL_LIST_SELECT, xv_get(List, PANEL_LIST_FIRST_SELECTED), FALSE,
PANEL_LIST_SELECT, row, TRUE,
Note: you may find it useful to start with PANEL_CHOOSE_NONE true so that
the list comes up with no selection; and then on the first selection set
PANEL_CHOOSE_NONE to FALSE so that a selection is required.
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