class Terminal::Size
Constants
- IOCTL_INPUT_BUF
- VERSION
Public Class Methods
resize(direction, magnitude)
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These are experimental
# File lib/terminal-size.rb, line 10 def resize direction, magnitude tmux 'resize-pane', "-#{direction}", magnitude end
size()
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# File lib/terminal-size.rb, line 4 def size size_via_low_level_ioctl or size_via_stty or nil end
size!()
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# File lib/terminal-size.rb, line 7 def size!; size or _height_width_hash_from 25, 80 end
size_via_low_level_ioctl()
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# File lib/terminal-size.rb, line 19 def size_via_low_level_ioctl # Thanks to runpaint for the general approach to this return unless $stdin.respond_to? :ioctl code = tiocgwinsz_value_for RUBY_PLATFORM return unless code buf = IOCTL_INPUT_BUF.dup return unless $stdout.ioctl(code, buf).zero? return if IOCTL_INPUT_BUF == buf got = buf.unpack('S4')[0..1] _height_width_hash_from *got rescue nil end
size_via_stty()
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# File lib/terminal-size.rb, line 42 def size_via_stty ints = `stty size`.scan(/\d+/).map &:to_i _height_width_hash_from *ints rescue nil end
tiocgwinsz_value_for(platform)
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# File lib/terminal-size.rb, line 33 def tiocgwinsz_value_for platform # This is as reported by <sys/ioctl.h> # Hard-coding because it seems like overkll to acutally involve C for this. { /linux/ => 0x5413, /darwin/ => 0x40087468, # thanks to brandon@brandon.io for the lookup! }.find{|k,v| platform[k]} end
tmux(*cmd)
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# File lib/terminal-size.rb, line 14 def tmux *cmd system 'tmux', *(cmd.map &:to_s) end
Private Class Methods
_height_width_hash_from(*dimensions)
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# File lib/terminal-size.rb, line 50 def _height_width_hash_from *dimensions { :height => dimensions[0], :width => dimensions[1] } end