Module: Ruco::Editor::LineNumbers

Included in:
Ruco::EditorArea
Defined in:
lib/ruco/editor/line_numbers.rb

Constant Summary collapse

LINE_NUMBERS_SPACE = 
5

Instance Method Summary collapse

Instance Method Details

#cursor ⇒ Object 



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# File 'lib/ruco/editor/line_numbers.rb', line 39

def cursor
  if @options[:line_numbers]
    cursor = super
    cursor[1] += LINE_NUMBERS_SPACE
    cursor
  else
    super
  end
end

#initialize(content, options) ⇒ Object 



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# File 'lib/ruco/editor/line_numbers.rb', line 6

def initialize(content, options)
  options[:columns] -= LINE_NUMBERS_SPACE if options[:line_numbers]
  super(content, options)
end

#style_map ⇒ Object 



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# File 'lib/ruco/editor/line_numbers.rb', line 29

def style_map
  if @options[:line_numbers]
    map = super
    map.left_pad!(LINE_NUMBERS_SPACE)
    map
  else
    super
  end
end

#view ⇒ Object 



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# File 'lib/ruco/editor/line_numbers.rb', line 11

def view
  if @options[:line_numbers]
    number_room = LINE_NUMBERS_SPACE - 1

    super.naive_split("\n").map_with_index do |line,i|
      number = @window.top + i
      number = if lines[number]
        (number + 1).to_s
               else
                 ''
               end.rjust(number_room).slice(0,number_room)
      "#{number} #{line}"
    end * "\n"
  else
    super
  end
end