return "\x1b[#{parts.join ';'}m"
else
return ''
+ encode_screen = (height, width, text, attributes) ->
+ state = ''
+ for y in [0...height]
+ for x in [0...width]
+ if attributes[y][x] isnt a
+ state += attr_diff a, attributes[y][x]
+ a = attributes[y][x]
+ state += text[y][x]
+ if y < height - 1
+ state += '\n'
+ return state
a = 0x07
state = ''
- # FIXME handle alt screen
- for y in [0...term.height]
- for x in [0...term.width]
- if term.attributes[y][x] isnt a
- state += attr_diff a, term.attributes[y][x]
- a = term.attributes[y][x]
- state += term.text[y][x]
- if y < term.height - 1
- state += '\n'
+ if term.saved_normal_screen?
+ state += encode_screen term.height, term.width, term.saved_normal_screen.text, term.saved_normal_screen.attributes
+ state += "\x1b[#{term.saved_normal_screen.y + 1};#{term.saved_normal_screen.x + 1}H"
+ state += "\x1b[?1049h\x1b[H" # flip to alt screen and move cursor home
+ state += encode_screen term.height, term.width, term.text, term.attributes
state += attr_diff a, term.a
state += "\x1b[#{term.y + 1};#{term.x + 1}H"
unless term.cursor_visible
if @saved_normal_screen?
log "ignoring request to switch to the alt screen because we're already on the alt screen"
return
- @saved_normal_screen = [@x, @y, @text, @attributes]
+ @saved_normal_screen = x: @x, y: @y, text: @text, attributes: @attributes
@text = []
@attributes = []
for y in [0...@height]
if not @saved_normal_screen?
log "ignoring request to switch to the normal screen because we're already on the normal screen"
return
- @x = @saved_normal_screen[0]
- @y = @saved_normal_screen[1]
- @text = @saved_normal_screen[2]
- @attributes = @saved_normal_screen[3]
+ @x = @saved_normal_screen.x
+ @y = @saved_normal_screen.y
+ @text = @saved_normal_screen.text
+ @attributes = @saved_normal_screen.attributes
@saved_normal_screen = null
else
log "confusing arg for csiq_l: #{arg}"