Add packs in child objects.
Delete may or may not remove a child. This is toolkit specific. It may also be tied up with garbage collection. To avoid that, keep a reference to the child object before deleting.
add(obj, child, expand = FALSE, fill = NULL, anchor = NULL, ...)# S3 method for default
add(obj, child, expand = FALSE, fill = NULL, anchor = NULL, ...)
delete(obj, child)
# S3 method for GContainer
delete(obj, child)
parent object
child widget
NULL or logical. For box containers controls whether a child will expand to fill the allocated space.
NULL or character. For box containers. The value of fill
(not
always respected) is used to control if expansion happens
vertically (y
), horizontally (x
) or both
(both
or TRUE
). For vertically filled box
containers, children always fill horizontally (atleast) and for
horizontally filled box containers, children always fill
vertically (atleast). This is important to realize when trying to
size buttons, say.
NULL or integer. For box containers. The anchor argument is used to position the child within the parent when there is more space allocated than the child requests. This is specified with a Cartesian pair in -1,0,1 x -1, 0, 1.
passed on to the