Class: VisualWidth::Table

Inherits:
Object
  • Object
show all
Includes:
VisualWidth
Defined in:
lib/visual_width/table.rb

Constant Summary

Constants included from VisualWidth

Ambiguous, EAST_ASIAN, Fullwide, VERSION, Wide

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from VisualWidth

count, each_width, measure, truncate

Constructor Details

#initialize(header: nil, style: []) ⇒ Table

Returns a new instance of Table.



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# File 'lib/visual_width/table.rb', line 9

def initialize(header: nil, style: [])
  @header = header
  @style  = style

  @needs_wrap = @style.any? { |style| style[:width] != nil }
end

Instance Attribute Details

#header ⇒ Object

Returns the value of attribute header.



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# File 'lib/visual_width/table.rb', line 7

def header
  @header
end

#style ⇒ Object

Returns the value of attribute style.



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# File 'lib/visual_width/table.rb', line 7

def style
  @style
end

Instance Method Details

#draw(*args) ⇒ Object 



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# File 'lib/visual_width/table.rb', line 54

def draw(*args)
  warn "draw() is deprecated. Use render() instead."
  render(*args)
end

#render(rows, header: nil, output: "") ⇒ Object 



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# File 'lib/visual_width/table.rb', line 16

def render(rows, header: nil, output: "")
  if @needs_wrap
    default_style = {}
    rows = rows.map do |row|
      i = 0
      row.map do |cell|
        cell = "#{cell}"
        width = (@style[i] || default_style)[:width]
        i += 1
        if width
          wrap(cell, width)
        else
          cell
        end
      end
    end
  end
  max_widths = calc_max_widths(rows)
  h = header || @header
  style_header = []
  if h
    max_widths = calc_max_widths([h])
      .zip(max_widths)
      .map { |values| values.max }
    h.length.times do |i|
      style = @style[i] || {}

      style_header << style.merge(align: :center)
    end
  end
  draw_header(output, max_widths, style_header, h)
  rows.each do |row|
    draw_row(output, max_widths, @style, row)
  end
  line(output, max_widths)
  output
end