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The new nc_widget_subset is similar to nc_widget_select, but hides added
options until they are made active. This allows the widget to have
multiple options selected and ordered without cluttering the screen.
Signed-off-by: Samuel Mendoza-Jonas <sam.mj@au1.ibm.com>
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Fields without O_STATIC can "scroll" horizontally, and we may miss a
left-hand section of text from the current display. This can mean that
the user can't leave a validated field with no indication why, if the
off-to-the-left data is not a valid entry.
This change adds a widgetset function to mark a field as fixed-size, so
we don't have this scrolling behaviour. This means that the entire field
contents will always be visible, and any validation errors can be seen.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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We'd like to do some validation of the system configuration parameters,
so add a few validation types to the widget code. We currently need
integer, ipv4 address and multiple ipv4 address types. These are
implemented as small wrappers around the ncurses form validator code.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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We want to be able to re-set the options in a select widget.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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When we have widgets that are larger than the screen, we'd like to
scroll to the currently-focussed component of that widget.
This change introduces a widget_focus_y function, which returns the y
offset of the field's focus.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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We're doing a lot of the same stuff with forms, and we'll to implement a
lot of fields with the upcoming configuration interface.
This change introduces a simple ncurses widget set.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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