Module: Crucigrama::Crossword::PdfPrintable

Defined in:
lib/crucigrama/crossword/pdf_printable.rb

Overview

This module provides a to_pdf method that allows the printing of a crossword in PDF format

Constant Summary collapse

PDF_CELL_SIZE =

Returns the size in PDF points of a cell side.

Returns:

  • (Integer) —

    the size in PDF points of a cell side

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Instance Method Summary collapse

Instance Method Details

#to_pdf(file, options = {}) ⇒ Object

Prints the crossword on the given file in PDF format

Parameters:

  • file (String, Prawn::Document) —

    the name of the file (if a String) or the PDF document (if a Prawn::Document) where the crossword must be printed

  • options (Hash) (defaults to: {}) —

    a customizable set of options

Options Hash (options):

  • :include_solution (Boolean) —

    whether or not to print a reduced and inverted solved crossword next to the actual one (false by default)



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# File 'lib/crucigrama/crossword/pdf_printable.rb', line 16

def to_pdf(file, options = {})
  drawing_block = Proc.new do |pdf|
    draw_crossword(pdf, :solved => false, :indexes => true)
    pdf.move_down PDF_CELL_SIZE
    if options[:include_solution]
      cursor = pdf.cursor
      draw_crossword(pdf, :solved => true, 
                          :at => [pdf.bounds.width - PDF_CELL_SIZE*(dimensions[:horizontal])/2, 
                                  pdf.cursor + PDF_CELL_SIZE*(dimensions[:vertical])/2],
                          :scale => 0.5,
                          :inverted => true)
      
      pdf.move_cursor_to cursor #- PDF_CELL_SIZE
    end
    pdf.move_down PDF_CELL_SIZE
    draw_definitions(pdf)
  end
  if file.is_a?(Prawn::Document)
    drawing_block.call(file)
  else
    Prawn::Document.generate(file, &drawing_block)
  end
end