Class: Thermal::WriterBase

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

Constant Summary collapse

ALIGNMENTS = 
i[left center right].freeze

Instance Method Summary collapse

Constructor Details

#initialize(profile) ⇒ WriterBase

Returns a new instance of WriterBase.



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# File 'lib/thermal/writer_base.rb', line 9

def initialize(profile)
  @profile = profile
  @bold = false
  @underline = false
  @align = :left
end

Instance Method Details

#align(alignment = nil) ⇒ Object 



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# File 'lib/thermal/writer_base.rb', line 32

def align(alignment = nil, &)
  alignment = alignment.downcase.to_sym if alignment.is_a?(String)
  alignment ||= :left
  raise "Invalid align #{alignment.inspect}" unless ALIGNMENTS.include?(alignment)

  write_style(align: alignment, &)
end

#bold(enabled = true) ⇒ Object

rubocop:disable Style/OptionalBooleanParameter



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# File 'lib/thermal/writer_base.rb', line 40

def bold(enabled = true, &) # rubocop:disable Style/OptionalBooleanParameter

  write_style(bold: !!enabled, &)
end

#cut ⇒ Object 



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# File 'lib/thermal/writer_base.rb', line 54

def cut
  # do nothing

end

#feed ⇒ Object 



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# File 'lib/thermal/writer_base.rb', line 50

def feed
  # do nothing

end

#format ⇒ Object 



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# File 'lib/thermal/writer_base.rb', line 16

def format
  self.class.format if self.class.respond_to?(:format)
end

#hr ⇒ Object 



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# File 'lib/thermal/writer_base.rb', line 28

def hr
  # do nothing

end

#image ⇒ Object 



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# File 'lib/thermal/writer_base.rb', line 58

def image
  # do nothing

end

#print(**_kwargs) ⇒ Object 



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# File 'lib/thermal/writer_base.rb', line 20

def print(**_kwargs)
  yield
end

#qr_code ⇒ Object 



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# File 'lib/thermal/writer_base.rb', line 62

def qr_code
  # do nothing

end

#text(str, feed: true, replace: nil) ⇒ Object 



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# File 'lib/thermal/writer_base.rb', line 24

def text(str, feed: true, replace: nil)
  # do nothing

end

#underline(enabled = true, weight: nil, &block) ⇒ Object

rubocop:disable Style/OptionalBooleanParameter



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# File 'lib/thermal/writer_base.rb', line 44

def underline(enabled = true, weight: nil, &block) # rubocop:disable Style/OptionalBooleanParameter

  underline = weight || enabled
  underline = false if !underline || underline == 0
  write_style(underline: underline, &block)
end