Module: RubyText

Defined in:
lib/rubytext.rb,
lib/menu.rb,
lib/color.rb,
lib/version.rb,
lib/settings.rb

Overview

Skeleton… Can’t put at top because of #initalize

Defined Under Namespace

Modules: Keys Classes: Effects, Window

Constant Summary collapse

Colors = 
[:black, :blue, :cyan, :green, :magenta, 
:red, :white, :yellow]
VERSION = 
"0.0.48"
Path = 
File.expand_path(File.join(File.dirname(__FILE__)))

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.flags ⇒ Object

Hmm, all these are module-level.



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# File 'lib/settings.rb', line 4

def self.flags
  @flags.uniq!
  @flags
end

.hide_cursor ⇒ Object 



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# File 'lib/settings.rb', line 105

def self.hide_cursor
  X.curs_set(0)
end

.inverse_flag(flag) ⇒ Object 



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# File 'lib/settings.rb', line 9

def self.inverse_flag(flag)
  sflag = flag.to_s
  if sflag[0] == "_"
    sflag[1..-1].to_sym
  else
    ("_" + sflag).to_sym
  end
end

.menu(r: 0, c: 0, items:, curr: 0) ⇒ Object 



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# File 'lib/menu.rb', line 23

def self.menu(r: 0, c: 0, items:, curr: 0)
  high = items.size + 2
  wide = items.map(&:length).max + 4
  saveback(high, wide, r, c)
  win = RubyText.window(high, wide, r, c, true, fg: :white, bg: :blue)
  RubyText.set(:raw)
  X.stdscr.keypad(true)
  RubyText.hide_cursor
  sel = curr
  max = items.size - 1
  loop do
    items.each.with_index do |item, row|
      win.go row, 0
      color = sel == row ? :yellow : :white
      win.puts color, " #{item} "
    end
    ch = getch
    case ch
      when X::KEY_UP
        sel -= 1 if sel > 0
      when X::KEY_DOWN
        sel += 1 if sel < max
      when 27
        restback(high, wide, r, c)
        return [nil, nil]
      when 10
        restback(high, wide, r, c)
        return [sel, items[sel]]
    end
  end
end

.method_missing(name, *args) ⇒ Object

For passing through arbitrary method calls to the lower level…



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# File 'lib/settings.rb', line 92

def self.method_missing(name, *args)
  debug "method_missing: #{name}  #{args.inspect}"
  if name[0] == '_'
    X.send(name[1..-1], *args)
  else
    raise "#{name} #{args.inspect}" # NoMethodError
  end
end

.reset ⇒ Object 



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# File 'lib/settings.rb', line 54

def self.reset
  rest_flags
end

.rest_flags ⇒ Object 



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# File 'lib/settings.rb', line 64

def self.rest_flags
  @flags = @fstack.pop
  @flags.uniq!
rescue 
  @flags = @defaults
end

.restback(high, wide, r, c) ⇒ Object 



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# File 'lib/menu.rb', line 13

def self.restback(high, wide, r, c)
  0.upto(high) do |h|
    0.upto(wide) do |w|
      STDSCR[h+r, w+c] = @save.shift
    end
  end
  STDSCR.go *@pos
  STDSCR.refresh
end

.save_flags ⇒ Object 



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# File 'lib/settings.rb', line 58

def self.save_flags
  @fstack ||= []
  @flags.uniq!
  @fstack.push @flags
end

.saveback(high, wide, r, c) ⇒ Object 



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# File 'lib/menu.rb', line 3

def self.saveback(high, wide, r, c)
  @pos = STDSCR.rc
  @save = []
  0.upto(high) do |h|
    0.upto(wide) do |w|
      @save << STDSCR[h+r, w+c]
    end
  end
end

.set(*args) ⇒ Object

Allow a block?



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# File 'lib/settings.rb', line 18

def self.set(*args)   # Allow a block?
  standard = [:cbreak, :raw, :echo, :keypad]
  @defaults = [:cbreak, :echo, :keypad, :cursor, :_raw]
  @flags = @defaults.dup
  save_flags
  args.each do |arg|
puts "\n@flags = #{@flags.inspect}... add #{arg}, remove #{inverse_flag(arg)}"
    @flags += [arg]
    @flags -= [inverse_flag(arg)]
    @flags.uniq!
puts "@flags = #{@flags.inspect}"
    flag = arg.to_s
    if standard.include? flag.to_sym
      X.send(flag)
    elsif flag[0] == "_" && standard.include?(flag[1..-1].to_sym)
      flag.sub!(/^_/, "no")
      X.send(flag)
    else
      case arg
        when :cursor
          X.curs_set(1)
        when :_cursor, :nocursor
          X.curs_set(0)
        else 
          self.stop
          raise RTError
      end
    end
  end

  if block_given?
    yield
    rest_flags
  end
end

.show_cursor ⇒ Object 



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# File 'lib/settings.rb', line 109

def self.show_cursor
  X.curs_set(1)
end

.show_cursor! ⇒ Object 



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# File 'lib/settings.rb', line 113

def self.show_cursor!
  X.curs_set(2)  # Doesn't work?
end

.start(*args, log: nil, fg: nil, bg: nil) ⇒ Object 



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# File 'lib/settings.rb', line 71

def self.start(*args, log: nil, fg: nil, bg: nil)
  $debug = File.new(log, "w") if log
  Object.const_set(:STDSCR, RubyText::Window.main(fg: fg, bg: bg))
  $stdscr = STDSCR
  fg, bg, cp = fb2cp(fg, bg)
  self.set(:_echo, :cbreak, :raw)  # defaults
#   X.stdscr.keypad(true)
  self.set(*args)  # override defaults
rescue => err
  debug(err.inspect)
  debug(err.backtrace)
  raise RTError
end

.stop ⇒ Object 



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# File 'lib/settings.rb', line 85

def self.stop
  X.close_screen
end

.window(high, wide, r0, c0, border = false, fg: nil, bg: nil) ⇒ Object 



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# File 'lib/settings.rb', line 101

def self.window(high, wide, r0, c0, border=false, fg: nil, bg: nil)
  RubyText::Window.new(high, wide, r0, c0, border, fg, bg)
end

Instance Method Details

#selector(r: 0, c: 0, rows: 10, cols: 20, items:, win:, callback:, quit: "q") ⇒ Object 



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# File 'lib/menu.rb', line 55

def selector(r: 0, c: 0, rows: 10, cols: 20, items:, 
             win:, callback:, quit: "q")
  high = rows
  wide = cols
  saveback(high, wide, r, c)
  menu_win = RubyText.window(high, wide, r, c, true, fg: :white, bg: :blue)
  win2 = win
  handler = callback
  RubyText.set(:raw)
  X.stdscr.keypad(true)
  RubyText.hide_cursor
  sel = 0
  max = items.size - 1
  handler.call(0, items[0])
  loop do
    items.each.with_index do |item, row|
      menu_win.go row, 0
      color = sel == row ? :yellow : :white
      menu_win.puts color, " #{item} "
    end
    ch = getch
    case ch
      when X::KEY_UP
        if sel > 0
          sel -= 1
          handler.call(sel, items[sel])
        end
      when X::KEY_DOWN
        if sel < max
          sel += 1
          handler.call(sel, items[sel])
        end
      when quit  # parameter
        exit
    end
  end
end