Module: ImgToPdf::PaperSizeParser

Extended by:
PaperSizeParser
Included in:
PaperSizeParser
Defined in:
lib/img_to_pdf/paper_size_parser.rb

Constant Summary collapse

AVAILABLE_DIRECTIONS = 
%i[landscape portrait]

Instance Method Summary collapse

Instance Method Details

#call(s) ⇒ ImgToPdf::Dimension

Returns parsed paper dimension. points.

Parameters:

  • s (String) —

    paper size text. “a4-landscape”, “b3-portrait”, etc.

Returns:



12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
 
# File 'lib/img_to_pdf/paper_size_parser.rb', line 12

def call(s)
  paper_size, direction = *s.split("-")
  direction = direction.downcase.to_sym
  if !AVAILABLE_DIRECTIONS.include?(direction)
    raise ImgToPdf::ParserError, "invalid paper direction: #{s.inspect}"
  end
  raw_size_pt = PDF::Core::PageGeometry::SIZES[paper_size.upcase]
  if !raw_size_pt
    raise ImgToPdf::ParserError, "invalid paper size: #{s.inspect}"
  end

  paper_dimension_pt = ImgToPdf::Dimension.from_array(raw_size_pt)
  paper_dimension_pt = paper_dimension_pt.justify_direction(direction)

  return paper_dimension_pt
end