Class: Thermal::Starprnt::Writer

Inherits:
WriterBase show all
Defined in:
lib/thermal/starprnt/writer.rb

Constant Summary collapse

DEFAULT_QR_CODE_CELL_SIZE = 
4

Constants inherited from WriterBase

WriterBase::ALIGNMENTS

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from WriterBase

#align, #bold, #format, #initialize, #underline

Constructor Details

This class inherits a constructor from Thermal::WriterBase

Class Method Details

.format ⇒ Object 



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# File 'lib/thermal/starprnt/writer.rb', line 16

def self.format
  'starprnt'
end

Instance Method Details

#cut ⇒ Object 



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# File 'lib/thermal/starprnt/writer.rb', line 62

def cut
  buffer.print(appendCutPaper: 'PartialCut')
end

#feed(lines = 1) ⇒ Object 



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# File 'lib/thermal/starprnt/writer.rb', line 50

def feed(lines = 1)
  buffer.print(appendLineFeed: lines)
end

#hr(style = nil, width: col_width) ⇒ Object 



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# File 'lib/thermal/starprnt/writer.rb', line 26

def hr(style = nil, width: col_width)
  write("#{hr_char(style) * width}\n")
end

#image(path, opts = {}) ⇒ Object 



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# File 'lib/thermal/starprnt/writer.rb', line 54

def image(path, opts = {})
  buffer.print_base64_image(::Escpos::Image.new(path, opts).to_escpos)
end

#print(flush: true, output: nil) ⇒ Object 



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# File 'lib/thermal/starprnt/writer.rb', line 8

def print(flush: true, output: nil)
  set_utf8_encoding
  super
  feed(5)
  cut
  flush ? buffer.flush : buffer.to_a
end

#qr_code(url, cell_size = DEFAULT_QR_CODE_CELL_SIZE) ⇒ Object 



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# File 'lib/thermal/starprnt/writer.rb', line 58

def qr_code(url, cell_size = DEFAULT_QR_CODE_CELL_SIZE)
  buffer.print(appendQrCode: url, alignment: 'Center', cell: cell_size)
end

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



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# File 'lib/thermal/starprnt/writer.rb', line 20

def text(str, feed: true, replace: nil, **_kwargs)
  str = ::Thermal::Util.normalize_utf8(str, replace: replace)
  str = "#{str}\n" if feed
  write(str) if str
end

#write_align! ⇒ Object 



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# File 'lib/thermal/starprnt/writer.rb', line 38

def write_align!
  cmd = case @align
        when :right
          'Right'
        when :center
          'Center'
        else
          'Left'
        end
  buffer.print(appendAlignment: cmd)
end

#write_bold! ⇒ Object 



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# File 'lib/thermal/starprnt/writer.rb', line 30

def write_bold!
  buffer.print(enableEmphasis: !!@bold)
end

#write_underline! ⇒ Object 



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# File 'lib/thermal/starprnt/writer.rb', line 34

def write_underline!
  buffer.print(enableUnderline: !!@underline)
end