Class: RubyText::Window
- Inherits:
-
Object
- Object
- RubyText::Window
- Includes:
- Keys
- Defined in:
- menu.rb,
navigation.rb,
output.rb,
rubytext.rb,
window.rb,
color.rb
Overview
Reopening: Wrapper for curses windows
Defined Under Namespace
Classes: GetString
Constant Summary collapse
- ScreenStack =
[]
Constants included from Keys
Keys::BS, Keys::Back, Keys::CtlD, Keys::DEL, Keys::Del, Keys::Delete, Keys::Down, Keys::EOF, Keys::ESC, Keys::Enter, Keys::Esc, Keys::Escape, Keys::F1, Keys::F10, Keys::F11, Keys::F12, Keys::F2, Keys::F3, Keys::F4, Keys::F5, Keys::F6, Keys::F7, Keys::F8, Keys::F9, Keys::LF, Keys::Left, Keys::NL, Keys::Right, Keys::TAB, Keys::Tab, Keys::Up
Instance Attribute Summary collapse
-
#bg ⇒ Object
Returns the value of attribute bg.
-
#c0 ⇒ Object
readonly
Returns the value of attribute c0.
-
#cols ⇒ Object
readonly
Returns the value of attribute cols.
-
#cwin ⇒ Object
readonly
Returns the value of attribute cwin.
-
#fg ⇒ Object
Returns the value of attribute fg.
-
#height ⇒ Object
readonly
Returns the value of attribute height.
-
#r0 ⇒ Object
readonly
Returns the value of attribute r0.
-
#rows ⇒ Object
readonly
Returns the value of attribute rows.
-
#scrolling(flag = true) ⇒ Object
readonly
FIXME refactor bad code.
-
#width ⇒ Object
readonly
Returns the value of attribute width.
Class Method Summary collapse
-
.clear(win) ⇒ Object
delete this?.
-
.colorize!(cwin, fg, bg) ⇒ Object
Set up a window with fg/bg.
- .main(fg: White, bg: Blue, scroll: false) ⇒ Object
-
.make(cwin, high, wide, r0, c0, border: true, fg: White, bg: Black, scroll: false) ⇒ Object
FIXME try again to inline this.
Instance Method Summary collapse
- #[](r, c) ⇒ Object
- #[]=(r, c, char) ⇒ Object
- #_putch(ch) ⇒ Object
- #add_title(str, align = :center) ⇒ Object
- #background(high = STDSCR.rows, wide = STDSCR.cols, r = 0, c = 0) ⇒ Object
- #beep ⇒ Object
-
#bottom ⇒ Object
Move cursor to bottom of window.
- #boxme ⇒ Object
- #center(str) ⇒ Object
- #clear ⇒ Object
-
#colorize!(fg, bg) ⇒ Object
Set up a window with fg/bg.
-
#coords(r, c) ⇒ Object
Handle special coordinate names (symbols).
-
#crlf ⇒ Object
Technically not output…
- #delegate_output(sym, *args) ⇒ Object
-
#down(n = 1) ⇒ Object
Move cursor down.
-
#down! ⇒ Object
Move cursor to bottom of window.
-
#effect?(arg) ⇒ Boolean
FIXME Please refactor the Hal out of this.
- #flash ⇒ Object
- #gets(history: [], limit: nil, tab: [], default: "", capture: []) ⇒ Object
-
#go(r0, c0) ⇒ Object
Go to specified row/column in current window, execute block, and return cursor.
-
#goto(r, c) ⇒ Object
Go to specified row/column in current window.
-
#home ⇒ Object
Move cursor to home (upper left).
-
#initialize(high = nil, wide = nil, r0 = 0, c0 = 0, border = false, fg = White, bg = Blue, scroll = false) ⇒ Window
constructor
Better to use Window.window IRL.
-
#left(n = 1) ⇒ Object
Move cursor left.
-
#left! ⇒ Object
Move cursor to far left of window.
-
#menu(r: :center, c: :center, items:, curr: 0, border: true, title: nil, fg: Green, bg: Black) ⇒ Object
Simple menu with rows of strings.
-
#multimenu(r: :center, c: :center, items:, curr: 0, selected: [], title: nil, sel_fg: Yellow, fg: White, bg: Blue) ⇒ Object
Menu for multiple selections (buggy/unused?).
- #output(&block) ⇒ Object
- #p(*args) ⇒ Object
- #print(*args) ⇒ Object
- #putch(ch, r: nil, c: nil, fx: nil) ⇒ Object
- #puts(*args) ⇒ Object
-
#radio_menu(r: :center, c: :center, items:, curr: 0, border: true, title: nil, fg: Green, bg: Black) ⇒ Object
Menu to choose a single setting and retain it.
-
#rc ⇒ Object
Return current row/column.
- #rcprint(r, c, *args) ⇒ Object
- #rcprint!(r, c, *args) ⇒ Object
- #refresh ⇒ Object
- #restback(high = STDSCR.rows, wide = STDSCR.cols, r = 0, c = 0) ⇒ Object
-
#right(n = 1) ⇒ Object
Move cursor right.
-
#right! ⇒ Object
Move cursor to far left of window.
- #saveback(high = STDSCR.rows, wide = STDSCR.cols, r = 0, c = 0) ⇒ Object
-
#screen_text(file = nil) ⇒ Object
rename?.
- #scroll(n = 1) ⇒ Object
-
#set_colors(fg, bg) ⇒ Object
Assign color pair to curses window.
-
#top ⇒ Object
Move cursor to top of window.
-
#topmenu(items:, curr: 0, fg: Green, bg: Black) ⇒ Object
One-line menu at top of window.
-
#up(n = 1) ⇒ Object
Move cursor up.
-
#up! ⇒ Object
Move cursor to top of window.
-
#yesno ⇒ Object
Simple yes/no decision.
Constructor Details
#initialize(high = nil, wide = nil, r0 = 0, c0 = 0, border = false, fg = White, bg = Blue, scroll = false) ⇒ Window
Better to use Window.window IRL
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# File 'window.rb', line 23 def initialize(high=nil, wide=nil, r0=0, c0=0, border=false, fg=White, bg=Blue, scroll=false) @wide, @high, @r0, @c0 = wide, high, r0, c0 @border, @fg, @bg = border, fg, bg @cwin = Curses::Window.new(high, wide, r0, c0) colorize!(fg, bg) if @border @cwin.box(Vert, Horiz) @outer = @cwin @outer.refresh @cwin = Curses::Window.new(high-2, wide-2, r0+1, c0+1) colorize!(fg, bg) else @outer = @cwin end @rows, @cols = @cwin.maxy, @cwin.maxx # unnecessary really... @width, @height = @cols + 2, @rows + 2 if @border @scrolling = scroll @cwin.scrollok(scroll) @cwin.refresh end |
Instance Attribute Details
#bg ⇒ Object
Returns the value of attribute bg.
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# File 'window.rb', line 19 def bg @bg end |
#c0 ⇒ Object (readonly)
Returns the value of attribute c0.
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# File 'window.rb', line 18 def c0 @c0 end |
#cols ⇒ Object (readonly)
Returns the value of attribute cols.
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# File 'window.rb', line 17 def cols @cols end |
#cwin ⇒ Object (readonly)
Returns the value of attribute cwin.
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# File 'window.rb', line 17 def cwin @cwin end |
#fg ⇒ Object
Returns the value of attribute fg.
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# File 'window.rb', line 19 def fg @fg end |
#height ⇒ Object (readonly)
Returns the value of attribute height.
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# File 'window.rb', line 17 def height @height end |
#r0 ⇒ Object (readonly)
Returns the value of attribute r0.
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# File 'window.rb', line 18 def r0 @r0 end |
#rows ⇒ Object (readonly)
Returns the value of attribute rows.
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# File 'window.rb', line 17 def rows @rows end |
#scrolling(flag = true) ⇒ Object (readonly)
FIXME refactor bad code
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# File 'window.rb', line 90 def scrolling @scrolling end |
#width ⇒ Object (readonly)
Returns the value of attribute width.
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# File 'window.rb', line 17 def width @width end |
Class Method Details
.clear(win) ⇒ Object
delete this?
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# File 'output.rb', line 103 def self.clear(win) # delete this? num = win.maxx * win.maxy - 1 win.setpos(0, 0) win.addstr(' '*num) win.setpos(0, 0) win.refresh end |
.colorize!(cwin, fg, bg) ⇒ Object
Set up a window with fg/bg
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# File 'color.rb', line 45 def self.colorize!(cwin, fg, bg) cp = RubyText::Color.pair(fg, bg) cwin.color_set(cp) num = cwin.maxx * cwin.maxy cwin.setpos 0,0 cwin.addstr(' '*num) cwin.setpos 0,0 cwin.refresh rescue => err File.open("/tmp/#{__method__}.out", "w") do |f| f.puts err f.puts err.backtrace end end |
.main(fg: White, bg: Blue, scroll: false) ⇒ Object
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# File 'window.rb', line 45 def self.main(fg: White, bg: Blue, scroll: false) debug "Starting #main..." main_win = Curses.init_screen Curses.start_color self.colorize!(main_win, fg, bg) rows, cols = main_win.maxy, main_win.maxx win = self.make(main_win, rows, cols, 0, 0, border: false, fg: fg, bg: bg, scroll: scroll) debug "...started #main" win rescue => err File.open("/tmp/main.out", "w") {|f| f.puts err.inspect; f.puts err.backtrace } end |
.make(cwin, high, wide, r0, c0, border: true, fg: White, bg: Black, scroll: false) ⇒ Object
FIXME try again to inline this
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# File 'window.rb', line 61 def self.make(cwin, high, wide, r0, c0, border: true, fg: White, bg: Black, scroll: false) obj = self.allocate obj.instance_eval do @outer = @cwin = cwin @wide, @high, @r0, @c0 = wide, high, r0, c0 @fg, @bg = fg, bg @border = border @rows, @cols = high, wide @width, @height = @cols + 2, @rows + 2 if @border end obj.scrolling(scroll) obj end |
Instance Method Details
#[](r, c) ⇒ Object
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# File 'output.rb', line 126 def [](r, c) ch = nil go(r, c) { ch = @cwin.inch } debug "ch = #{ch} ch.chr = #{ch.chr}" ch.chr end |
#[]=(r, c, char) ⇒ Object
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# File 'output.rb', line 133 def []=(r, c, char) @cwin.setpos(r, c) @cwin.addch(char[0].ord|Curses::A_NORMAL) @cwin.setpos(r, c) @cwin.refresh end |
#_putch(ch) ⇒ Object
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# File 'output.rb', line 63 def _putch(ch) @cwin.addch(ch) end |
#add_title(str, align = :center) ⇒ Object
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# File 'window.rb', line 75 def add_title(str, align = :center) raise "No border" unless @border len = str.length # What if it's too long? start = case align when :left; 1 when :center; (@outer.maxx - len)/2 when :right; @outer.maxx - len - 1 end @outer.setpos 0, start @outer.addstr str @outer.refresh end |
#background(high = STDSCR.rows, wide = STDSCR.cols, r = 0, c = 0) ⇒ Object
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# File 'window.rb', line 123 def background(high=STDSCR.rows, wide=STDSCR.cols, r=0, c=0) saveback(high, wide, r, c) yield restback(high, wide, r, c) end |
#beep ⇒ Object
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# File 'window.rb', line 172 def beep Curses.beep end |
#bottom ⇒ Object
Move cursor to bottom of window
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# File 'navigation.rb', line 88 def bottom r, c = rc rmax = self.rows - 1 go rmax, c end |
#boxme ⇒ Object
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# File 'output.rb', line 140 def boxme @outer.box(Vert, Horiz) @outer.refresh end |
#center(str) ⇒ Object
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# File 'output.rb', line 8 def center(str) r, c = self.rc n = @cwin.maxx - str.length go r, n/2 self.puts str end |
#clear ⇒ Object
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# File 'output.rb', line 111 def clear cwin.setpos(cwin.maxx, cwin.maxy) cwin.addstr(' ') num = cwin.maxx * cwin.maxy - 1 cwin.addstr(' '*num) cwin.setpos(0, 0) cwin.refresh end |
#colorize!(fg, bg) ⇒ Object
Set up a window with fg/bg
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# File 'color.rb', line 69 def colorize!(fg, bg) set_colors(fg, bg) num = @cwin.maxx * @cwin.maxy self.home self.go(0, 0) { @cwin.addstr(' '*num) } @cwin.refresh end |
#coords(r, c) ⇒ Object
Handle special coordinate names (symbols)
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# File 'navigation.rb', line 7 def coords(r, c) r = case when r == :center self.rows / 2 when r == :top 0 when r == :bottom self.rows - 1 else r end c = case when c == :center self.cols / 2 when c == :left 0 when c == :right self.cols - 1 else c end [r, c] end |
#crlf ⇒ Object
Technically not output…
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# File 'output.rb', line 85 def crlf # Technically not output... r, c = rc if @scrolling if r == @rows - 1 # bottom row scroll left! else go r+1, 0 end else if r == @rows - 1 # bottom row left! else go r+1, 0 end end end |
#delegate_output(sym, *args) ⇒ Object
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# File 'output.rb', line 21 def delegate_output(sym, *args) self.cwin.attrset(0) args = [""] if args.empty? args += ["\n"] if sym == :puts set_colors(@fg, @bg) meth = sym == :p ? :inspect : :to_s args.map! {|x| effect?(x) ? x : x.send(meth) } args.each do |arg| if arg.is_a?(RubyText::Effects) arg.set(self) else arg.effect.set(self) if arg.respond_to? :effect arg.each_char {|ch| ch == "\n" ? crlf : @cwin.addch(ch) } @cwin.refresh end end crlf if sym == :p # no implicit newline set_colors(@fg, @bg) @cwin.refresh end |
#down(n = 1) ⇒ Object
Move cursor down
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# File 'navigation.rb', line 60 def down(n=1) r, c = rc go r+n, c end |
#down! ⇒ Object
Move cursor to bottom of window
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# File 'navigation.rb', line 102 def down! bottom end |
#effect?(arg) ⇒ Boolean
FIXME Please refactor the Hal out of this.
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# File 'output.rb', line 17 def effect?(arg) arg.is_a?(RubyText::Effects) end |
#flash ⇒ Object
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# File 'window.rb', line 176 def flash Curses.flash end |
#gets(history: [], limit: nil, tab: [], default: "", capture: []) ⇒ Object
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# File 'output.rb', line 252 def gets(history: [], limit: nil, tab: [], default: "", capture: []) # needs improvement # echo assumed to be OFF, keypad ON @history = history gs = GetString.new(self, default, history: history, limit: limit, tab: tab, capture: capture) count = 0 loop do count += 1 # Escape and 'capture' chars have special meaning if first char ch = self.getch case ch when *capture return ch if count == 1 gs.add(ch) when Escape return Escape if count == 1 gs.enter break when CtlD return CtlD if count == 1 gs.enter break when Enter gs.enter break when BS, DEL, 63 # backspace, del, ^H (huh?) gs.backspace when Tab gs.complete when Left gs.left_arrow when Right gs.right_arrow when Up next if @history.nil? # move this? gs.history_prev when Down next if @history.nil? # move this? gs.history_next when Integer Curses.beep else gs.add(ch) end end gs.value rescue => err str = err.to_s + "\n" + err.backtrace.join("\n") raise str end |
#go(r0, c0) ⇒ Object
Go to specified row/column in current window,
execute block, and return cursor
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# File 'navigation.rb', line 41 def go(r0, c0) r, c = coords(r0, c0) save = self.rc goto r, c if block_given? yield goto *save end end |
#goto(r, c) ⇒ Object
Go to specified row/column in current window
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# File 'navigation.rb', line 33 def goto(r, c) # only accepts numbers! @cwin.setpos(r, c) end |
#home ⇒ Object
Move cursor to home (upper left)
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# File 'navigation.rb', line 123 def home go 0, 0 end |
#left(n = 1) ⇒ Object
Move cursor left
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# File 'navigation.rb', line 67 def left(n=1) r, c = rc go r, c-n end |
#left! ⇒ Object
Move cursor to far left of window
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# File 'navigation.rb', line 108 def left! r, c = rc go r, 0 end |
#menu(r: :center, c: :center, items:, curr: 0, border: true, title: nil, fg: Green, bg: Black) ⇒ Object
Simple menu with rows of strings
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# File 'menu.rb', line 73 def (r: :center, c: :center, items:, curr: 0, border: true, title: nil, fg: Green, bg: Black) RubyText.hide_cursor if items.is_a?(Hash) results = items.values items = items.keys hash_flag = true else results = items end high = items.size wide = items.map(&:length).max + 3 high += 2 if border wide += 2 if border tlen = title.length + 8 rescue 0 wide = [wide, tlen].max row, col = self.coords(r, c) row = row - high/2 if r == :center col = col - wide/2 if c == :center r, c = row, col self.saveback(high, wide, r, c) mr, mc = r+self.r0, c+self.c0 title = nil unless border mwin = RubyText.window(high, wide, r: mr, c: mc, border: border, fg: fg, bg: bg, title: title) Curses.stdscr.keypad(true) sel = curr max = items.size - 1 loop do RubyText.hide_cursor # FIXME should be unnecessary items.each.with_index do |item, row| mwin.go row, 0 style = (sel == row) ? :reverse : :normal label = (" "*2 + item.to_s + " "*8)[0..wide-1] mwin.print fx(label, style) end ch = getch case ch when Up sel -= 1 if sel > 0 when Down sel += 1 if sel < max when Esc self.restback(high, wide, r, c) RubyText.show_cursor return [nil, nil] when Enter self.restback(high, wide, r, c) RubyText.show_cursor choice = results[sel] return [sel, choice] if choice.is_a? String result = choice.call return [nil, nil] if result.nil? || result.empty? return result else Curses.beep end RubyText.show_cursor end end |
#multimenu(r: :center, c: :center, items:, curr: 0, selected: [], title: nil, sel_fg: Yellow, fg: White, bg: Blue) ⇒ Object
Menu for multiple selections (buggy/unused?)
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# File 'menu.rb', line 138 def (r: :center, c: :center, items:, curr: 0, selected: [], title: nil, sel_fg: Yellow, fg: White, bg: Blue) RubyText.hide_cursor high = items.size + 2 wide = items.map(&:length).max + 5 tlen = title.length + 8 rescue 0 wide = [wide, tlen].max row, col = self.coords(r, c) row = row - high/2 if r == :center col = col - wide/2 if c == :center r, c = row, col self.saveback(high, wide, r, c) mr, mc = r+self.r0, c+self.c0 mwin = RubyText.window(high, wide, r: mr, c: mc, fg: fg, bg: bg, title: title) Curses.stdscr.keypad(true) sel = curr max = items.size - 1 loop do RubyText.hide_cursor # FIXME should be unnecessary items.each.with_index do |item, row| mwin.go row, 0 style = (sel == row) ? :reverse : :normal color = selected.include?(row) ? sel_fg : fg label = (" "*2 + item + " "*8)[0..wide-1] mwin.print fx(label, color, style) end ch = getch case ch when Up sel -= 1 if sel > 0 when Down sel += 1 if sel < max when Esc self.restback(high, wide, r, c) RubyText.show_cursor return [] when Enter self.restback(high, wide, r, c) RubyText.show_cursor return selected.map {|i| items[i] } when " " selected << sel sel += 1 if sel < max else Curses.beep end RubyText.show_cursor end end |
#output(&block) ⇒ Object
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# File 'output.rb', line 120 def output(&block) $stdscr = self block.call $stdscr = STDSCR end |
#p(*args) ⇒ Object
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# File 'output.rb', line 50 def p(*args) delegate_output(:p, *args) end |
#print(*args) ⇒ Object
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# File 'output.rb', line 46 def print(*args) delegate_output(:print, *args) end |
#putch(ch, r: nil, c: nil, fx: nil) ⇒ Object
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# File 'output.rb', line 67 def putch(ch, r: nil, c: nil, fx: nil) debug("putch: #{[ch, r, c, fx].inspect}") if r.nil? && c.nil? && fx.nil? _putch(ch) else r0, c0 = self.rc r ||= r0 c ||= c0 go(r, c) do fx.set(self) if fx val = fx.value rescue 0 @cwin.addch(ch.ord|val) end fx.reset(self) if fx end @cwin.refresh end |
#puts(*args) ⇒ Object
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# File 'output.rb', line 42 def puts(*args) delegate_output(:puts, *args) end |
#radio_menu(r: :center, c: :center, items:, curr: 0, border: true, title: nil, fg: Green, bg: Black) ⇒ Object
Menu to choose a single setting and retain it
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# File 'menu.rb', line 200 def (r: :center, c: :center, items:, curr: 0, # Handle current value better? border: true, title: nil, fg: Green, bg: Black) RubyText.hide_cursor if items.is_a?(Hash) results = items.values items = items.keys hash_flag = true else results = items end high = items.size wide = items.map(&:length).max + 3 high += 2 if border wide += 2 if border tlen = title.length + 8 rescue 0 wide = [wide, tlen].max row, col = self.coords(r, c) row = row - high/2 if r == :center col = col - wide/2 if c == :center r, c = row, col self.saveback(high, wide, r, c) mr, mc = r+self.r0, c+self.c0 title = nil unless border mwin = RubyText.window(high, wide, r: mr, c: mc, border: border, fg: fg, bg: bg, title: title) Curses.stdscr.keypad(true) sel = curr max = items.size - 1 loop do RubyText.hide_cursor # FIXME should be unnecessary items.each.with_index do |item, row| mark = row == curr ? ">" : " " mwin.go row, 0 style = (sel == row) ? :reverse : :normal label = "#{mark} #{item}" mwin.print fx(label, style) end ch = getch case ch when Up sel -= 1 if sel > 0 when Down sel += 1 if sel < max when Esc self.restback(high, wide, r, c) RubyText.show_cursor return [nil, nil] when " " mwin[curr, 0] = " " mwin[sel, 0] = ">" curr = sel when Enter self.restback(high, wide, r, c) RubyText.show_cursor choice = results[sel] return [sel, choice] if choice.is_a? String result = choice.call return [nil, nil] if result.nil? || result.empty? return result else Curses.beep end RubyText.show_cursor end end |
#rc ⇒ Object
Return current row/column
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# File 'navigation.rb', line 129 def rc [@cwin.cury, @cwin.curx] end |
#rcprint(r, c, *args) ⇒ Object
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# File 'output.rb', line 54 def rcprint(r, c, *args) self.go(r, c) { self.print *args } end |
#rcprint!(r, c, *args) ⇒ Object
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# File 'output.rb', line 58 def rcprint!(r, c, *args) self.go(r, c) # Cursor isn't restored self.print *args end |
#refresh ⇒ Object
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# File 'output.rb', line 145 def refresh @cwin.refresh end |
#restback(high = STDSCR.rows, wide = STDSCR.cols, r = 0, c = 0) ⇒ Object
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# File 'window.rb', line 143 def restback(high=STDSCR.rows, wide=STDSCR.cols, r=0, c=0) save = ScreenStack.pop pos = save.shift 0.upto(high-1) do |h| line = "" 0.upto(wide-1) {|w| line << save.shift } row, col = h+r-1, c-1 row += 1 if self == STDSCR # wtf? col += 1 if self == STDSCR self.go row, col self.print line end self.go *pos @cwin.refresh rescue => err puts "Error!" puts err puts err.backtrace.join("\n") sleep 8 end |
#right(n = 1) ⇒ Object
Move cursor right
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# File 'navigation.rb', line 74 def right(n=1) r, c = rc go r, c+n end |
#right! ⇒ Object
Move cursor to far left of window
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# File 'navigation.rb', line 115 def right! r, c = rc cmax = self.cols - 1 go r, cmax end |
#saveback(high = STDSCR.rows, wide = STDSCR.cols, r = 0, c = 0) ⇒ Object
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# File 'window.rb', line 129 def saveback(high=STDSCR.rows, wide=STDSCR.cols, r=0, c=0) debug "saveback: #{[high, wide, r, c].inspect}" save = [self.rc] 0.upto(high-1) do |h| 0.upto(wide-1) do |w| row, col = h+r-1, w+c-1 row += 1 if self == STDSCR # wtf? col += 1 if self == STDSCR save << self[row, col] end end ScreenStack.push save end |
#screen_text(file = nil) ⇒ Object
rename?
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# File 'window.rb', line 110 def screen_text(file = nil) # rename? lines = [] 0.upto(self.rows-1) do |r| line = "" 0.upto(self.cols-1) do |c| line << self[r, c] end lines << line end File.open(file, "w") {|f| f.puts lines } if file lines end |
#scroll(n = 1) ⇒ Object
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# File 'window.rb', line 95 def scroll(n=1) if n < 0 @cwin.scrl(n) (-n).times {|i| rcprint i, 0, (' '*@cols) } else n.times do |i| @cwin.scroll scrolling(false) rcprint @rows-1, 0, (' '*@cols) scrolling end end @cwin.refresh end |
#set_colors(fg, bg) ⇒ Object
Assign color pair to curses window
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# File 'color.rb', line 62 def set_colors(fg, bg) cp = RubyText::Color.pair(fg, bg) @cwin.color_set(cp) end |
#top ⇒ Object
Move cursor to top of window
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# File 'navigation.rb', line 81 def top r, c = rc go 0, c end |
#topmenu(items:, curr: 0, fg: Green, bg: Black) ⇒ Object
One-line menu at top of window
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# File 'menu.rb', line 11 def (items:, curr: 0, fg: Green, bg: Black) r, c = 0, 0 high = 1 RubyText.hide_cursor if items.is_a?(Hash) results = items.values items = items.keys hash_flag = true else results = items end width = 0 # total width cols = [] # start-column of each item items.each do |item| cols << width iwide = item.to_s.length + 2 width += iwide end r, c = self.coords(r, c) self.saveback(high, width, r, c) mr, mc = r+self.r0, c+self.c0 mwin = RubyText.window(high, width, r: mr, c: mc, fg: fg, bg: bg, border: false, title: nil) Curses.stdscr.keypad(true) sel = curr max = items.size - 1 loop do items.each.with_index do |item, num| item = " #{item} " mwin.go 0, cols[num] style = (sel == num) ? :reverse : :normal mwin.print fx(item, style) end ch = getch case ch when Left sel -= 1 if sel > 0 when Right sel += 1 if sel < max when Esc, " " # spacebar also quits self.restback(high, width, r, c) RubyText.show_cursor return [nil, nil] when Down, Enter self.restback(high, width, r, c) RubyText.show_cursor choice = results[sel] return [sel, choice] if choice.is_a? String result = choice.call next if result.nil? next if result.empty? return result else Curses.beep end RubyText.show_cursor end end |
#up(n = 1) ⇒ Object
Move cursor up
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# File 'navigation.rb', line 53 def up(n=1) r, c = rc go r-n, c end |
#up! ⇒ Object
Move cursor to top of window
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# File 'navigation.rb', line 96 def up! top end |
#yesno ⇒ Object
Simple yes/no decision
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# File 'menu.rb', line 191 def yesno # TODO: Accept YyNn r, c = STDSCR.rc num, str = STDSCR.(r: r, c: c+6, items: ["yes", "no"]) num == 0 end |