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module Terminal
class Table
class Separator < Row
##
# `prevrow`, `nextrow` contain references to adjacent rows.
#
# `border_type` is a symbol used to control which type of border is used
# on the separator (:top for top-edge, :bot for bottom-edge,
# :div for interior, and :strong for emphasized-interior)
#
# `implicit` is false for user-added separators, and true for
# implicit/auto-generated separators.
def initialize(*args, border_type: :div, implicit: false)
super
@prevrow, @nextrow = nil, nil
@border_type = border_type
@implicit = implicit
end
attr_accessor :border_type
attr_reader :implicit
def render
left_edge, ctrflat, ctrud, right_edge, ctrdn, ctrup = @table.style.horizontal(border_type)
prev_crossings = @prevrow.respond_to?(:crossings) ? @prevrow.crossings : []
next_crossings = @nextrow.respond_to?(:crossings) ? @nextrow.crossings : []
rval = [left_edge]
numcols = @table.number_of_columns
(0...numcols).each do |idx|
rval << ctrflat * (@table.column_width(idx) + @table.cell_padding)
pcinc = prev_crossings.include?(idx+1)
ncinc = next_crossings.include?(idx+1)
border_center = if pcinc && ncinc
ctrud
elsif pcinc
ctrup
elsif ncinc
ctrdn
elsif !ctrud.empty?
# special case if the center-up-down intersection is empty
# which happens when verticals/intersections are removed. in that case
# we do not want to replace with a flat element so return empty-string in else block
ctrflat
else
''
end
rval << border_center if idx < numcols-1
end
rval << right_edge
rval.join
end
# Save off neighboring rows, so that we can use them later in determining
# which types of table edges to use.
def save_adjacent_rows(prevrow, nextrow)
@prevrow = prevrow
@nextrow = nextrow
end
end
end
end
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