Class: Kaitai::TUI

Inherits:
Object
  • Object
show all
Extended by:
Forwardable
Defined in:
lib/kaitai/tui.rb

Constant Summary collapse

SINGLE_CHARSET = 
'┌┐└┘─│'
HEAVY_CHARSET = 
'┏┓┗┛━┃'
DOUBLE_CHARSET = 
'╔╗╚╝═║'
CHAR_TL = 
0
CHAR_TR = 
1
CHAR_BL = 
2
CHAR_BR = 
3
CHAR_H = 
4
CHAR_V = 
5
@@is_windows =

Regexp borrowed from stackoverflow.com/questions/170956/how-can-i-find-which-operating-system-my-ruby-program-is-running-on

(RUBY_PLATFORM =~ /cygwin|mswin|mingw|bccwin|wince|emx/) ? true : false

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ TUI

Returns a new instance of TUI.



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# File 'lib/kaitai/tui.rb', line 12

def initialize
  if TUI.windows?
    require 'kaitai/console_windows'
    @console = ConsoleWindows.new
    @highlight_colors = %i[bright_white bright_cyan cyan gray]
  else
    require 'kaitai/console_ansi'
    @console = ConsoleANSI.new
    @highlight_colors = %i[bright_white bright_cyan cyan gray]
  end
end

Instance Attribute Details

#highlight_colors ⇒ Object (readonly)

Returns the value of attribute highlight_colors.



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# File 'lib/kaitai/tui.rb', line 10

def highlight_colors
  @highlight_colors
end

Class Method Details

.windows? ⇒ Boolean

Detects whether the current platform is Windows-based.

Returns:

  • (Boolean) 


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# File 'lib/kaitai/tui.rb', line 96

def self.windows?
  @@is_windows
end

Instance Method Details

#draw_button(x, y, _w, caption) ⇒ Object 



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# File 'lib/kaitai/tui.rb', line 86

def draw_button(x, y, _w, caption)
  goto(x, y)
  puts "[ #{caption} ]"
end

#draw_rectangle(x, y, w, h, charset = DOUBLE_CHARSET) ⇒ Object 



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# File 'lib/kaitai/tui.rb', line 67

def draw_rectangle(x, y, w, h, charset = DOUBLE_CHARSET)
  goto(x, y)
  print charset[CHAR_TL]
  print charset[CHAR_H] * (w - 2)
  print charset[CHAR_TR]

  ((y + 1)..(y + h - 1)).each do |i|
    goto(x, i)
    print charset[CHAR_V]
    print ' ' * (w - 2)
    print charset[CHAR_V]
  end

  goto(x, y + h)
  print charset[CHAR_BL]
  print charset[CHAR_H] * (w - 2)
  print charset[CHAR_BR]
end

#input_str(header, _msg) ⇒ Object 



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# File 'lib/kaitai/tui.rb', line 57

def input_str(header, _msg)
  top_y = @console.rows / 2 - 5
  draw_rectangle(10, top_y, @console.cols - 20, 10)
  goto(@console.cols / 2 - (header.length / 2) - 1, top_y)
  print ' ', header, ' '

  goto(11, top_y + 1)
  Readline.readline('', false)
end

#message_box(header, msg) ⇒ Object 



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# File 'lib/kaitai/tui.rb', line 43

def message_box(header, msg)
  top_y = @console.rows / 2 - 5
  draw_rectangle(10, top_y, @console.cols - 20, 10)
  @console.goto(@console.cols / 2 - (header.length / 2) - 1, top_y)
  print ' ', header, ' '
  @console.goto(11, top_y + 1)
  puts msg
  draw_button(@console.cols / 2 - 10, top_y + 8, 10, 'OK')
  loop do
    c = @console.read_char_mapped
    return if c == :enter
  end
end

#message_box_exception(e) ⇒ Object 



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# File 'lib/kaitai/tui.rb', line 28

def message_box_exception(e)
  message_box('Error while parsing', e.message)
end

#on_resize=(handler) ⇒ Object 



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# File 'lib/kaitai/tui.rb', line 24

def on_resize=(handler)
  @console.on_resize = handler
end