Table overflowing without needing to?

[floydj]

I have a table with another table inside of it as shown in the picture below. My problem is that the red-bordered table won't fit in the blue table, and is thus overflowing to the following page. If I remove a colspan from the first row in the red-bordered table, it stops overflowing. How can I make the blue-bordered table stop overflowing and still use a colspan in the red-bordered table?

require "prawn/table"

class TestPdf < Prawn::Document
  def initialize
    super(margin: [ 30, 71, 55, 71 ])
    render_propaganda
  end

  def render_propaganda
    prop_table
  end

  def prop_table
    table  [[
      { content: "Placeholder text", width: 200 },
      { content: propaganda }
    ]], cell_style: { border_width: 1, border_color: '0000FF' } do
    end
  end

  def propaganda
    make_table(prop_rows, cell_style: { border_width: 1,
                                        border_color: 'FF0000',
                                        overflow: :expand}) do
     end
  end

  def prop_rows
    desc = "one\ntwo\nthree\nfour"
    desc.split("\n").map do |line|
      if line == get_line(desc)
        #[ { content: "#{line}", colspan: 2, size: 11, font_style: :bold}  ]
        [ { content: "#{line}", size: 11, font_style: :bold}  ] #taking out colspan fixes 
      else
        [ { content: "\u2022", padding_left: 10, font_style: :bold}, { content: "#{line}", size: 10, padding_left: 0 } ]
      end
    end
  end

  def get_line(desc, num = 0)
    lines = desc.split("\n")
    if lines.count < 2
      result = desc
    else
      result = lines[num]
    end
    result
  end

end

[hbrandl]

Thanks for reporting the bug and including code to reproduce it @floydj. Would it be possible for you to include a failing test case too?

[floydj]

Done

[hbrandl]

Thank you! I'll take a close look at the issue soon.

[lucas-nelson]

I hope I am helping and not being a bother, but I think I hit this bug in my work. If so, I have a simpler block that reproduces it:

Prawn::Document.generate('colspan-nested-bug.pdf') do
  table([[make_table([[{ content: 'r1c1-2', colspan: 2 }],
                      [make_table([['r2c1/r1c1'], ['r2c1/r2c1']]),
                       'r2c2']])]])
end

Change the r1c1-2 colspan to 1 and there's no bug. Remove the ['r2c1/r2c1'] row and there's no bug.

I don't want to mess with the spec that floydj created, but thought some extra info might help someday.