openxml/openxml-docx

#!/usr/bin/env ruby

# require "rails" # workaround: openxml-package uses `extract_options!`
$:.push Dir.pwd + "/lib"
require "ox"
require "openxml/docx"


def default_table_style
  style = OpenXml::Docx::Style.new(:table)
  style.id = "TableGrid"

  table_grid_tags.each do |tag_name|
    tag = OpenXml::Docx::Properties::TableBorder.new(tag_name, :single)
    table_border_styles = {width: 4, space: 0, color: "000000"}
    table_border_styles.each {|key, val| tag.send("#{key}=", val) }
    style.table.table_borders <<  tag
  end

  table_cell_margin_tags.each do |tag_name|
    tag = OpenXml::Docx::Properties::TableCellMargin.new(tag_name)
    tag.type = :dxa
    tag.width = %i(start end).include?(tag_name) ? 108 : 0
    style.table.table_cell_margins << tag
  end

  style
end

def table_grid_tags
  %i(start end top bottom insideH insideV)
end

def table_cell_margin_tags
  %i(top start bottom end)
end


ROWS = 4
CELLS = 4

document = OpenXml::Docx::Package.new
document.styles << default_table_style

include OpenXml::Docx::Elements

table = Table.new
table.table_style = "TableGrid"

ROWS.times do
  row = TableRow.new

  CELLS.times do
    cell = TableCell.new
    paragraph = Paragraph.new
    cell << paragraph
    row << cell
  end
  table << row
end

document.document << table

header = OpenXml::Docx::Parts::Header.new
paragraph = Paragraph.new
run = Run.new
run << Text.new("This is some header text")
paragraph << run
header << paragraph

header_id = document.add_header(header)

footer = OpenXml::Docx::Parts::Footer.new
paragraph = Paragraph.new
run = Run.new
run << Text.new("This is some footer text")
paragraph << run
footer << paragraph

footer_id = document.add_footer(footer)

section = OpenXml::Docx::Section.new
section.header_reference.id = header_id
section.header_reference.type = :default

section.footer_reference.id = footer_id
section.footer_reference.type = :default

document.document << section


filename = "rocx_test_table.docx"
system "rm -f ~/Desktop/#{filename}" # -f so that we don't have an error if the file doesn't exist
document.save File.expand_path("~/Desktop/#{filename}")
exec "open ~/Desktop/#{filename}"