1
2
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
37
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
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
|
require 'ncurses'
module CLI
def self.keytable(key)
case key
when 12
'<redraw>'
when ?\n
'<cr>'
when ?\b, Ncurses::KEY_BACKSPACE, 127
'<bs>'
when Ncurses::KEY_RIGHT
'<right>'
when Ncurses::KEY_LEFT
'<left>'
when Ncurses::KEY_UP
'<up>'
when Ncurses::KEY_DOWN
'<down>'
when ?\e
'<esc>'
# keep spaces as they are, makes more sense
# when ?\s
# '<space>'
when Ncurses::KEY_BTAB
'<s-tab>'
when 9
'<tab>'
when 1..26 # CTRL + ...
"<c-#{(key+96).chr}>"
when 32..127
key.chr
else
''
end
end
def self.included(this)
@@window = Ncurses.initscr
starti
end
# (Re)Start the Interface
def starti
@@running = true
@@screen = Ncurses.stdscr
@@screen.keypad(true)
Ncurses.start_color
Ncurses.use_default_colors
Ncurses.noecho
Ncurses.curs_set 0
Ncurses.halfdelay(200)
@@colortable = []
end
# Close the Interface
def closei
@@running = false
Ncurses.echo
Ncurses.nocbreak
Ncurses.curs_set 1
Ncurses.endwin
end
def running?() @@running end
def cleari
Ncurses.mvaddstr(0, 0, ' ' * (lines * cols))
end
def geti
CLI.keytable(Ncurses.getch)
end
def set_title(x)
print "\e]2;#{x}\007"
end
def lines
Ncurses.LINES
end
def cols
Ncurses.COLS
end
def movi(y=0, x=0)
y < 0 and y += lines
Ncurses.move(y, x)
end
def puti *args
case args.size
when 1
Ncurses.addstr(args[0].to_s)
when 2
if (y = args[0]) < 0 then y += Ncurses.LINES end
Ncurses.mvaddstr(y, 0, args[1].to_s)
when 3
if (y = args[0]) < 0 then y += Ncurses.LINES end
Ncurses.mvaddstr(y, args[1], args[2].to_s)
end
end
def attr_set(fg=-1, bg=-1, attr = nil)
fg, bg, attr = fg if fg.is_a? Array
if attr
Ncurses.attrset(attr | Ncurses.COLOR_PAIR(get_color(fg, bg)))
else
Ncurses.color_set(get_color(fg, bg), nil)
end
end
def attr_at(y=0, x=0, len=-1, fg=-1, bg=-1, attr=0)
fg, bg, attr = fg if fg.is_a? Array
y += lines if y < 0
x += cols if x < 0
attr ||= 0
Ncurses.mvchgat(y, x, len, attr, get_color(fg, bg), nil)
end
# def color(fg = -1, bg = -1)
# if OPTIONS['color']
# Ncurses.color_set(get_color(fg,bg), nil)
# end
# end
#
# def color_at y, x=0, len=-1, fg=-1, bg=-1, attributes=0
# if OPTIONS['color']
# if y < 0 then y += Ncurses.LINES end
# Ncurses.mvchgat(y, x, len, attributes, get_color(fg, bg), nil)
# end
# end
#
# def color_bold_at y, x=0, len=-1, fg=-1, bg=-1
# color_at(y, x, len, fg, bg, attributes = Ncurses::A_BOLD)
# end
#
# def color_reverse_bold_at y, x=0, len=-1, fg=-1, bg=-1
# if OPTIONS['color']
# color_at(y, x, len, fg, bg, Ncurses::A_REVERSE | Ncurses::A_BOLD)
# else
# Ncurses.mvchgat(y, x, len, Ncurses::A_REVERSE | Ncurses::A_BOLD, 0, nil)
# end
# end
# alias color_bold_reverse_at color_reverse_bold_at
#
# def color_reverse_at y, x=0, len=-1, fg=-1, bg=-1
# if OPTIONS['color']
# color_at(y, x, len, fg, bg, Ncurses::A_REVERSE)
# else
# Ncurses.mvchgat(y, x, len, Ncurses::A_REVERSE, 0, nil)
# end
# end
def get_color(fg, bg)
n = bg+2 + 9*(fg+2)
color = @@colortable[n]
unless color
# create a new pair
size = @@colortable.reject{|x| x.nil? }.size + 1
Ncurses::init_pair(size, fg, bg)
color = @@colortable[n] = size
end
return color
end
#
# def bold(b = true)
# if b
# Ncurses.attron(Ncurses::A_BOLD)
# else
# Ncurses.attroff(Ncurses::A_BOLD)
# end
# end
#
# def reverse(b = true)
# if b
# Ncurses.attron(Ncurses::A_REVERSE)
# else
# Ncurses.attroff(Ncurses::A_REVERSE)
# end
# end
end
|