Class: MapnikLegendary::Docwriter

Inherits:
Object
  • Object
show all
Defined in:
lib/mapnik_legendary/docwriter.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Docwriter

Returns a new instance of Docwriter.



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# File 'lib/mapnik_legendary/docwriter.rb', line 9

def initialize
  @entries = []
  @image_width = 100
end

Instance Attribute Details

#image_width ⇒ Object

Returns the value of attribute image_width.



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# File 'lib/mapnik_legendary/docwriter.rb', line 7

def image_width
  @image_width
end

Instance Method Details

#add(image, description) ⇒ Object 



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# File 'lib/mapnik_legendary/docwriter.rb', line 14

def add(image, description)
  @entries << [image, description]
end

#to_html ⇒ Object 



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# File 'lib/mapnik_legendary/docwriter.rb', line 18

def to_html
  doc = '<html><head></head><body><table>' + "\n"
  @entries.each do |entry|
    doc += "<tr><td><img src=\"#{entry[0]}\"></td><td>#{entry[1]}</td></tr>\n"
  end
  doc += '</table></body></html>' + "\n"
  doc
end

#to_pdf(filename, title) ⇒ Object 



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# File 'lib/mapnik_legendary/docwriter.rb', line 27

def to_pdf(filename, title)
  entries = @entries
  image_width = @image_width
  Prawn::Document.generate(filename, page_size: 'A4') do
    font_families.update(
      'Ubuntu' => { bold: '/usr/share/fonts/truetype/ubuntu-font-family/Ubuntu-B.ttf',
                    italic: '/usr/share/fonts/truetype/ubuntu-font-family/Ubuntu-RI.ttf',
                    normal: '/usr/share/fonts/truetype/ubuntu-font-family/Ubuntu-R.ttf' }
    )
    font 'Ubuntu'
    font_size 12
    text title, style: :bold, size: 24, align: :center
    move_down(40)
    data = Array.new
    image_scale = 0.5
    entries.each do |entry|
      data << { image: File.join(File.dirname(filename), entry[0]),
                scale: image_scale,
                position: :center,
                vposition: :center }
      data << entry[1]
    end

    columns = image_width >= 200 ? 2 : 3

    table(data.each_slice(columns * 2).to_a, cell_style: { border_width: 0.1 }) do
      (0..columns - 1).each do |n|
        column(n * 2).width = image_width * image_scale
      end
    end
  end
end