Class: EasyDialog::Choises
- Inherits:
-
Object
- Object
- EasyDialog::Choises
- Defined in:
- lib/easy_dialog.rb
Instance Method Summary collapse
- #ask ⇒ Object
-
#initialize(question, choises) ⇒ Choises
constructor
A new instance of Choises.
Constructor Details
#initialize(question, choises) ⇒ Choises
Returns a new instance of Choises.
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# File 'lib/easy_dialog.rb', line 6 def initialize question, choises raise unless question.class == String raise unless choises.class == Array @question = question @choises = choises end |
Instance Method Details
#ask ⇒ Object
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# File 'lib/easy_dialog.rb', line 12 def ask width = @choises.max_by {|s| s.length}.length + 1 num = 80 / width highlight = 0 Curses.noecho Curses.init_screen Curses.start_color Curses.stdscr.keypad(true) Curses.init_pair 1, Curses::COLOR_BLACK, Curses::COLOR_RED loop do Curses.setpos 0, 0 Curses.attroff(Curses::A_COLOR) Curses.addstr(@question) @choises.each_with_index do |c,i| Curses.setpos i/num + 1, i%num*width if i == highlight Curses.attrset(Curses.color_pair(1)) else Curses.attroff(Curses::A_COLOR) end Curses.addstr(c) end Curses.refresh case hoge = Curses.getch when Curses::Key::RIGHT highlight = highlight + 1 when Curses::Key::LEFT highlight = highlight - 1 when Curses::Key::UP highlight = highlight - num when Curses::Key::DOWN highlight = highlight + num when 27 exit 1 when 10 Curses.close_screen return @choises[highlight] end if highlight >= @choises.length highlight = @choises.length - 1 end highlight = 0 if highlight < 0 end end |