Module: RubyText

Defined in:
lib/menu.rb,
lib/output.rb,
lib/version.rb,
lib/rubytext.rb

Defined Under Namespace

Modules: Keys Classes: Window

Constant Summary collapse

Colors = 
[:black, :blue, :cyan, :green, :magenta, :red, :white, :yellow]
VERSION = 
"0.0.41"
Path = 
File.expand_path(File.join(File.dirname(__FILE__)))

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.hide_cursor ⇒ Object 



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# File 'lib/rubytext.rb', line 131

def self.hide_cursor
  X.curs_set(0)
end

.menu(r: 0, c: 0, items:) ⇒ Object 



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

def self.menu(r: 0, c: 0, items:)
  high = items.size + 2
  wide = items.map(&:length).max + 2
  saveback(high, wide, r, c)
  @mywin = RubyText.window(high, wide, r, c, true, fg: :white, bg: :blue)
  RubyText.set(:raw)
  X.stdscr.keypad(true)
  RubyText.hide_cursor
  sel = 0
  max = items.size - 1
  loop do
    items.each.with_index do |item, row|
      @mywin.go row, 0
      color = sel == row ? :yellow : :white
      @mywin.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
      when 10
        restback(high, wide, r, c)
        return 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/rubytext.rb', line 118

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

.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

.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 



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# File 'lib/rubytext.rb', line 74

def self.set(*args)
  # Allow a block?
  standard = [:cbreak, :raw, :echo, :keypad]
  @flags = []   # FIXME can set/reset individually. hmmm
  args.each do |arg|
    if standard.include? arg
      flag = arg.to_s
      @flags << arg
      flag.sub!(/_/, "no")
      X.send(flag)
    else
      @flags << arg
      case arg
        when :cursor
          X.show_cursor
        when :_cursor, :nocursor
          X.hide_cursor
      end
    end
  end
end

.show_cursor ⇒ Object 



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# File 'lib/rubytext.rb', line 135

def self.show_cursor
  X.curs_set(1)
end

.show_cursor! ⇒ Object 



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# File 'lib/rubytext.rb', line 139

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/rubytext.rb', line 105

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
end

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



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# File 'lib/rubytext.rb', line 127

def RubyText.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

#rest_flags ⇒ Object 



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

def rest_flags
  @flags = @fstack.pop
end

#save_flags ⇒ Object 



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# File 'lib/rubytext.rb', line 96

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

#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
        end
      when X::KEY_DOWN
        if sel < max
          sel += 1
        end
      when quit  # parameter
        win2.clear
        win2.puts "About to quit..."
        sleep 1
        exit
    end
  end
end