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# File 'lib/calrom/formatter/overview.rb', line 7
def call(calendar, date_range, io = STDOUT)
colnum = (date_range.is_a?(Year) || date_range.each_month.to_a.size > 3) ? 3 : 1 if date_range.is_a? Year
io.puts center_on(weekdays.size * colnum + 2 * (colnum - 1), date_range.to_s)
end
date_range.each_month.each_slice(colnum) do |months|
columns = months.collect do |month|
StringIO.new.tap do |io|
print_month io, calendar, month, date_range.is_a?(Year)
end
end
print_columns columns, io
end
end
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