Module: CDK::Display

Defined in:
lib/cdk/display.rb

Class Method Summary collapse

Class Method Details

.filterByDisplayType(type, input) ⇒ Object

Given a character input, check if it is allowed by the display type and return the character to apply to the display, or ERR if not



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# File 'lib/cdk/display.rb', line 30

def Display.filterByDisplayType(type, input)
  result = input
  if !CDK.isChar(input)
    result = Ncurses::ERR

  elsif [:INT, :HINT].include?(type) &&
        !CDK.digit?(result.chr)
    result = Ncurses::ERR

  elsif [:CHAR, :UCHAR, :LCHAR, :UHCHAR, :LHCHAR].include?(type) &&
        CDK.digit?(result.chr)
    result = Ncurses::ERR

  elsif type == :VIEWONLY
    result = ERR

  elsif [:UCHAR, :UHCHAR, :UMIXED, :UHMIXED].include?(type) &&
        CDK.alpha?(result.chr)
    result = result.chr.upcase.ord

  elsif [:LCHAR, :LHCHAR, :LMIXED, :LHMIXED].include?(type) &&
        CDK.alpha?(result.chr)
    result = result.chr.downcase.ord
  end

  return result
end

.isHiddenDisplayType(type) ⇒ Object

Tell if a display type is “hidden”



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# File 'lib/cdk/display.rb', line 4

def Display.isHiddenDisplayType(type)
  case type
  when :HCHAR,
       :HINT,
       :HMIXED,
       :LHCHAR,
       :LHMIXED,
       :UHCHAR,
       :UHMIXED
    true

  when :CHAR,
       :INT,
       :INVALID,
       :LCHAR,
       :LMIXED,
       :MIXED,
       :UCHAR,
       :UMIXED,
       :VIEWONLY
    false
  end
end