Class: Report::Pdf

Inherits:
Object
  • Object
show all
Includes:
Utils
Defined in:
lib/report/pdf.rb

Constant Summary collapse

DEFAULT_FONT = 
{
  :normal      => File.expand_path('../pdf/DejaVuSansMono.ttf', __FILE__),
  :italic      => File.expand_path('../pdf/DejaVuSansMono-Oblique.ttf', __FILE__),
  :bold        => File.expand_path('../pdf/DejaVuSansMono-Bold.ttf', __FILE__),
  :bold_italic => File.expand_path('../pdf/DejaVuSansMono-BoldOblique.ttf', __FILE__),
}
DEFAULT_DOCUMENT = 
{
  :top_margin => 72,
  :right_margin => 36,
  :bottom_margin => 72,
  :left_margin => 36,
  :page_layout => :landscape,
}
DEFAULT_HEAD = 
{}
DEFAULT_BODY = 
{
  :width => (10*72),
  :header => true,
  :cell_style => { :inline_format => true },
}
DEFAULT_NUMBER_PAGES = 
[
  'Page <page> of <total>',
  {:at => [648, -2], :width => 100, :size => 10}
]

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Utils

#safe_delete, #tmp_path

Constructor Details

#initialize(report) ⇒ Pdf

Returns a new instance of Pdf.



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# File 'lib/report/pdf.rb', line 33

def initialize(report)
  @report = report
end

Instance Attribute Details

#report ⇒ Object (readonly)

Returns the value of attribute report.



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# File 'lib/report/pdf.rb', line 31

def report
  @report
end

Instance Method Details

#cleanup ⇒ Object 



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# File 'lib/report/pdf.rb', line 77

def cleanup
  safe_delete @path if @path
end

#path ⇒ Object 



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# File 'lib/report/pdf.rb', line 37

def path
  return @path if defined?(@path)
  require 'prawn'
  tmp_path = tmp_path(:extname => '.pdf')
  Prawn::Document.generate(tmp_path, document) do |pdf|
    
    pdf.font_families.update(font_name => font)
    pdf.font font_name, :size => 10

    first = true
    report.class.tables.each do |table|
      if first
        first = false
      else
        pdf.start_new_page
      end
      if t = make_head(table._head)
        pdf.table t, head
        pdf.move_down 20
      end
      pdf.text table.name, :style => :bold
      if t = make_body(table._body)
        pdf.move_down 10
        pdf.table t, body
      end
    end

    pdf.number_pages(*number_pages)
  end
  
  if stamp
    raise "#{stamp} not readable or does not exist" unless File.readable?(stamp)
    require 'posix/spawn'
    POSIX::Spawn::Child.new 'pdftk', tmp_path, 'stamp', stamp, 'output', "#{tmp_path}.stamped"
    FileUtils.mv "#{tmp_path}.stamped", tmp_path
  end

  @path = tmp_path
end