Class: Przn::Terminal

Inherits:
Object
  • Object
show all
Defined in:
lib/przn/terminal.rb

Constant Summary collapse

MOUSE_OFF = 
"\e[?1006l\e[?1003l\e[?1002l\e[?1000l"

Instance Method Summary collapse

Constructor Details

#initialize(input: $stdin, output: $stdout) ⇒ Terminal

Returns a new instance of Terminal.



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# File 'lib/przn/terminal.rb', line 9

def initialize(input: $stdin, output: $stdout)
  @in = input
  @out = output
end

Instance Method Details

#cell_pixel_size ⇒ Object 



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# File 'lib/przn/terminal.rb', line 17

def cell_pixel_size
  @cell_pixel_size ||= query_cell_pixel_size || [10, 20]
end

#clear ⇒ Object 



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# File 'lib/przn/terminal.rb', line 32

def clear
  write "\e[2J\e[H"
end

#enter_alt_screen ⇒ Object 



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# File 'lib/przn/terminal.rb', line 48

def enter_alt_screen
  write "\e[?1049h"
  write MOUSE_OFF
end

#flush ⇒ Object 



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# File 'lib/przn/terminal.rb', line 28

def flush
  @out.flush
end

#getch ⇒ Object 



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# File 'lib/przn/terminal.rb', line 22

def getch       = @in.getch

#height ⇒ Object 



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# File 'lib/przn/terminal.rb', line 15

def height = @in.winsize[0]

#hide_cursor ⇒ Object 



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# File 'lib/przn/terminal.rb', line 40

def hide_cursor
  write "\e[?25l"
end

#leave_alt_screen ⇒ Object 



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# File 'lib/przn/terminal.rb', line 53

def leave_alt_screen
  write MOUSE_OFF
  write "\e[?1049l"
end

#move_to(row, col) ⇒ Object 



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# File 'lib/przn/terminal.rb', line 36

def move_to(row, col)
  write "\e[#{row};#{col}H"
end

#raw(&block) ⇒ Object 



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# File 'lib/przn/terminal.rb', line 21

def raw(&block) = @in.raw(&block)

#show_cursor ⇒ Object 



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# File 'lib/przn/terminal.rb', line 44

def show_cursor
  write "\e[?25h"
end

#width ⇒ Object 



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# File 'lib/przn/terminal.rb', line 14

def width  = @in.winsize[1]

#write(str) ⇒ Object 



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# File 'lib/przn/terminal.rb', line 24

def write(str)
  @out.write(str)
end