Module: RNDK::Display

Defined in:
lib/rndk/core/display.rb

Overview

...I still don't know what this module does...

Class Method Summary collapse

Class Method Details

.char_to_display_type(string) ⇒ Object

Given a string, returns the equivalent display type



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# File 'lib/rndk/core/display.rb', line 9

def Display.char_to_display_type string
  table = {
    "CHAR"     => :CHAR,
    "HCHAR"    => :HCHAR,
    "INT"      => :INT,
    "HINT"     => :HINT,
    "UCHAR"    => :UCHAR,
    "LCHAR"    => :LCHAR,
    "UHCHAR"   => :UHCHAR,
    "LHCHAR"   => :LHCHAR,
    "MIXED"    => :MIXED,
    "HMIXED"   => :HMIXED,
    "UMIXED"   => :UMIXED,
    "LMIXED"   => :LMIXED,
    "UHMIXED"  => :UHMIXED,
    "LHMIXED"  => :LHMIXED,
    "VIEWONLY" => :VIEWONLY,
    0          => :INVALID
  }

  if table.include? string
    table[string]
  else
    :INVALID
  end
end

.filter_by_display_type(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/rndk/core/display.rb', line 50

def Display.filter_by_display_type(type, input)
  result = input
  if not RNDK.is_char? input
    result = Ncurses::ERR

  elsif ([:INT, :HINT].include? type) and (not RNDK.digit? result.chr)
    result = Ncurses::ERR

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

  elsif type == :VIEWONLY
    result = ERR

  elsif ([:UCHAR, :UHCHAR, :UMIXED, :UHMIXED].include? type) and (RNDK.is_alpha? result.chr)
    result = result.chr.upcase.ord

  elsif ([:LCHAR, :LHCHAR, :LMIXED, :LHMIXED].include? type) and (RNDK.is_alpha? result.chr)
    result = result.chr.downcase.ord
  end
  result
end

.is_hidden_display_type(type) ⇒ Object

Tell if a display type is "hidden"



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# File 'lib/rndk/core/display.rb', line 37

def Display.is_hidden_display_type 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