module Layouter

# File lib/layouter.rb, line 24
def annotation(*args)
  Leaf::Annotation.new(*args)
end

# File lib/layouter.rb, line 46
def bordered(chars, *args, &block)
  rows(
    cols(
      literal(chars[:tl]),
      horizontal(chars[:t]),
      literal(chars[:tr]),
    ),
    cols(
      vertical(chars[:l]),
      custom(*args, &block),
      vertical(chars[:r]),
    ),
    cols(
      literal(chars[:bl]),
      horizontal(chars[:b]),
      literal(chars[:br]),
    )
  )
end

# File lib/layouter.rb, line 16
def cols(*children)
  Parent.new(:cols, children)
end

# File lib/layouter.rb, line 32
def custom(*args, &block)
  Leaf::Custom.new(*args, &block)
end

# File lib/layouter.rb, line 36
def horizontal(char)
  raise(ArgumentError.new("Must pass single character")) if char.length != 1
  custom(height: 1) { |w, h| char * w }
end

# File lib/layouter.rb, line 28
def literal(content)
  annotation(content, trim: false)
end

# File lib/layouter.rb, line 12
def rows(*children)
  Parent.new(:rows, children)
end

# File lib/layouter.rb, line 20
def spacer(*args)
  Leaf::Spacer.new(*args)
end

# File lib/layouter.rb, line 41
def vertical(char)
  raise(ArgumentError.new("Must pass single character")) if char.length != 1
  custom(width: 1) { |w, h| ([char] * h).join("\n") }
end