Class: Thermal::Printer

Inherits:
Object
  • Object
show all
Extended by:
Forwardable
Defined in:
lib/thermal/printer.rb

Constant Summary collapse 

i[ text
hr
bold
underline
align
feed
cut
image
qr_code ].freeze
WRITERS = 
[
  ::Thermal::Escpos::Writer,
  ::Thermal::EscposStar::Writer,
  ::Thermal::Stargraphic::Writer,
  ::Thermal::Starprnt::Writer
].freeze
WRITER_MAP = 
::Thermal::Util.index_by(WRITERS, &:format).freeze

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(device, **opts) ⇒ Printer

opts includes :cjk_encoding



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# File 'lib/thermal/printer.rb', line 30

def initialize(device, **opts)
  @device = device
  @opts = opts
end

Instance Attribute Details

#device ⇒ Object (readonly)

Returns the value of attribute device.



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# File 'lib/thermal/printer.rb', line 27

def device
  @device
end

Instance Method Details

#profile ⇒ Object 



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# File 'lib/thermal/printer.rb', line 35

def profile
  @profile ||= ::Thermal::Profile.new(device, **@opts)
end

#writer ⇒ Object 



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# File 'lib/thermal/printer.rb', line 39

def writer
  @writer ||= WRITER_MAP[format].new(profile)
end