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# encoding: utf-8
#
# Another way to reduce the number of cells is to <code>filter</code> the table.
#
# <code>filter</code> is just like <code>Enumerable#select</code>. Pass is a
# block and it will iterate through the cells returning a new
# <code>Prawn::Table::Cells</code> instance containing only those cells for
# which the block was not false.
#
require File.expand_path(File.join(File.dirname(__FILE__),
%w[.. example_helper]))
filename = File.basename(__FILE__).gsub('.rb', '.pdf')
Prawn::Example.generate(filename) do
data = [ ["Item", "Jan Sales", "Feb Sales"],
["Oven", 17, 89],
["Fridge", 62, 30],
["Microwave", 71, 47]
]
table(data) do
values = cells.columns(1..-1).rows(1..-1)
bad_sales = values.filter do |cell|
cell.content.to_i < 40
end
bad_sales.background_color = "FFAAAA"
good_sales = values.filter do |cell|
cell.content.to_i > 70
end
good_sales.background_color = "AAFFAA"
end
end
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