Module: RubyText

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

Overview

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

Defined Under Namespace

Modules: Keys Classes: Color, Effects, Window

Constant Summary collapse

VERSION = 
"0.0.80"
Path = 
File.expand_path(File.join(File.dirname(__FILE__)))
ValidArgs =

Hmm, all these are module-level.

[:raw, :_raw, :echo, :_echo, :cbreak, :_cbreak, :keypad, :_keypad]

Class Method Summary collapse

Class Method Details

.flags ⇒ Object 



33
34
35
36
 
# File 'lib/settings.rb', line 33

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

.hide_cursor ⇒ Object 



127
128
129
 
# File 'lib/settings.rb', line 127

def self.hide_cursor
  X.curs_set(0)
end

.inverse_flag(flag) ⇒ Object

FIXME Refactor the Hal out of this.



40
41
42
43
44
45
46
47
 
# File 'lib/settings.rb', line 40

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

.menu(win: STDSCR, r: 0, c: 0, items:, curr: 0, fg: White, bg: Blue) ⇒ Object 



3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
 
# File 'lib/menu.rb', line 3

def self.menu(win: STDSCR, r: 0, c: 0, items:, curr: 0,
              fg: White, bg: Blue)
  high = items.size + 2
  wide = items.map(&:length).max + 4
  win.saveback(high, wide, r, c)
  mwin = RubyText.window(high, wide, r+win.r0+1, c+win.c0+1, 
                         fg: fg, bg: bg)
  X.stdscr.keypad(true)
  RubyText.hide_cursor
  sel = curr
  max = items.size - 1
  norm = RubyText::Effects.new(:normal)
  rev = RubyText::Effects.new(:reverse)
  loop do
    items.each.with_index do |item, row|
      mwin.go row, 0
      style = (sel == row) ? rev : norm
      mwin.print style, " #{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
        win.restback(high, wide, r, c)
        return [nil, nil]
      when 10
        win.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…



114
115
116
117
118
119
120
121
 
# File 'lib/settings.rb', line 114

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 



89
90
91
 
# File 'lib/settings.rb', line 89

def self.reset
  rest_flags
end

.rest_flags ⇒ Object 



99
100
101
102
103
104
 
# File 'lib/settings.rb', line 99

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

.save_flags ⇒ Object 



93
94
95
96
97
 
# File 'lib/settings.rb', line 93

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

.selector(win: STDSCR, r: 0, c: 0, rows: 10, cols: 20, items:, fg: White, bg: Blue, win2:, callback:, enter: nil, quit: "q") ⇒ Object 



38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
 
# File 'lib/menu.rb', line 38

def self.selector(win: STDSCR, r: 0, c: 0, rows: 10, cols: 20, 
                  items:, fg: White, bg: Blue,
                  win2:, callback:, enter: nil, quit: "q")
  high = rows
  wide = cols
  win.saveback(high, wide, r, c)
  mwin = RubyText.window(high, wide, r, c, fg: fg, bg: bg)
  handler = callback
  X.stdscr.keypad(true)
  RubyText.hide_cursor
  norm = RubyText::Effects.new(:normal)
  rev  = RubyText::Effects.new(:reverse)
  sel = 0
  max = items.size - 1
  send(handler, sel, items[sel], win2)
  loop do
    mwin.home
    items.each.with_index do |item, row|
      mwin.left
      style = (sel == row) ? rev : norm
      mwin.puts style, " #{item} "
    end
    ch = getch
    case ch
      when X::KEY_UP
        if sel > 0
          sel -= 1
          send(handler, sel, items[sel], win2)
        end
      when X::KEY_DOWN
        if sel < max
          sel += 1
          send(handler, sel, items[sel], win2)
        end
      when 10  # Enter
        if enter
          del = send(enter, sel, items[sel], win2)
          if del
            items -= [items[sel]]
            raise 
          end
        end
      when quit  # parameter
        exit
    end
  end
rescue
  retry
end

.set(*args) ⇒ Object

Allow a block?



49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
 
# File 'lib/settings.rb', line 49

def self.set(*args)   # Allow a block?
  standard = [:cbreak, :raw, :echo]
  @defaults = [:cbreak, :_echo, :keypad]
  @flags = @defaults.dup
  save_flags
  args.each do |arg|
    @flags += [arg]
    inv = inverse_flag(arg)
    @flags -= [inv]
    @flags.uniq!
    flag = arg.to_s
    if standard.include?(flag.to_sym) || standard.include?(flag.sub(/no/, "_").to_sym)
      X.send(flag)
    elsif flag[0] == "_" && standard.include?(flag[1..-1].to_sym)
      flag.sub!(/^_/, "no")
      X.send(flag)
    else
      case flag.to_sym
        when :cursor
          X.curs_set(1)
        when :_cursor, :nocursor
          X.curs_set(0)
        when :keypad
          STDSCR.cwin.keypad(true)
        when :_keypad
          STDSCR.cwin.keypad(false)
        else 
          # self.stop
          rest_flags  # prevent propagating error in test
          raise RTError("flag = #{flag.inspect}")
      end
    end
  end

  if block_given?
    yield
    rest_flags
  end
end

.show_cursor ⇒ Object 



131
132
133
 
# File 'lib/settings.rb', line 131

def self.show_cursor
  X.curs_set(1)
end

.show_cursor! ⇒ Object 



135
136
137
 
# File 'lib/settings.rb', line 135

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

.start(*args, log: "/tmp/rubytext.log", fg: White, bg: Blue, scroll: false) ⇒ Object 



12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
 
# File 'lib/settings.rb', line 12

def self.start(*args, log: "/tmp/rubytext.log", 
               fg: White, bg: Blue, scroll: false)
  $debug ||= File.new(log, "w") if log   # FIXME remove global

  args.each {|arg| raise "#{arg} is not valid" unless ValidArgs.include?(arg) }
  raise "#{fg} is not a color" unless ::Colors.include? fg
  raise "#{bg} is not a color" unless ::Colors.include? bg

  main = RubyText::Window.main(fg: fg, bg: bg, scroll: scroll)
  Object.const_set(:STDSCR, main) unless defined? STDSCR
  $stdscr = STDSCR  # FIXME global needed?
  Object.include(WindowIO)
  self.set(:_echo, :cbreak, :keypad)  # defaults
  self.set(*args)            # override defaults
  @started = true
rescue => err
  debug(err.inspect)
  debug(err.backtrace)
  raise RTError("#{err}")
end

.started ⇒ Object 



6
7
8
 
# File 'lib/settings.rb', line 6

def self.started
  @started
end

.stop ⇒ Object 



106
107
108
109
 
# File 'lib/settings.rb', line 106

def self.stop
  @started = false
  X.close_screen
end

.ticker(row: STDSCR.rows-1, col: 0, width: STDSCR.cols, fg: White, bg: Blue, text:, delay: 0.1) ⇒ Object 



2
3
4
5
6
7
8
9
10
11
12
13
14
 
# File 'lib/widgets.rb', line 2

def self.ticker(row: STDSCR.rows-1, col: 0, width: STDSCR.cols, 
                fg: White, bg: Blue, text:, delay: 0.1)
  text = text.gsub("\n", " ") + " "
  win = RubyText.window(1, width, row, col, border: false, fg: fg, bg: bg)
  leader = " "*width + text
  leader = text.chars.cycle.each_cons(width)
  width.times { win.rcprint 0, 0, leader.next.join }
  repeat = text.chars.cycle.each_cons(width)
  loop do   # Warning: loops forever
    win.rcprint 0, 0, repeat.next.join
    sleep delay
  end
end

.window(high, wide, r0, c0, border: true, fg: White, bg: Blue, scroll: false) ⇒ Object 



123
124
125
 
# File 'lib/settings.rb', line 123

def self.window(high, wide, r0, c0, border: true, fg: White, bg: Blue, scroll: false)
  RubyText::Window.new(high, wide, r0, c0, border, fg, bg, scroll)
end