class BBS::Windows::Info::Body

The body items of an Info window: how many rows each takes, the lines it gives a scrolling body, and the widgets it places in a static one. Each item is of a kind (::kind), and each kind has a method for each of the two.

Constants

HASH_KINDS: The kinds of a Hash item, in the order they are looked for.
PLAIN_KINDS: The kinds of the items that are a Symbol, an empty String or nil.

Public Class Methods

height_of (widget)

Source

# File lib/bbs/windows/info/body.rb, line 40
def self.height_of(widget) = widget.bounds.height.positive? ? widget.bounds.height : 1

The height of widget, or 1 before it has one.

key_width (item)

Source

# File lib/bbs/windows/info/body.rb, line 43
def self.key_width(item) = item[:label_width] || ((item[:kv].map { |k, _| k.to_s.length }.max || 0) + 1).clamp(8, 16)

The width of the key column of pairs.

kind (item)

Source

# File lib/bbs/windows/info/body.rb, line 18
def self.kind(item)
  return PLAIN_KINDS[item] if PLAIN_KINDS.key?(item)

  case item
  when String then :line
  when Hash then HASH_KINDS.find { |k| item[k] } || :other
  when Widget then :raw_widget
  else :other
  end
end

The kind of item: :blank, :rule, :line (a String), :kv, :widget, :text, :raw_widget (a BBS::Widget) or :other.

new (window)

Source

# File lib/bbs/windows/info/body.rb, line 47
def initialize(window)
  @window = window
end

A body for window, drawn with its theme and filled with widgets added to it.

rows (item)

Source

# File lib/bbs/windows/info/body.rb, line 30
def self.rows(item)
  case kind(item)
  when :kv then item[:kv].length
  when :widget then item[:height] || 1
  when :raw_widget then height_of(item)
  else 1
  end
end

The rows item takes in a static body.

Public Instance Methods

lines (item, width)

Source

# File lib/bbs/windows/info/body.rb, line 53
def lines(item, width) = send(:"lines_#{Body.kind(item)}", item, width)

The lines of item in a scrolling body width wide. Raises ArgumentError for a widget item.

place (item, x, y, width)

Source

# File lib/bbs/windows/info/body.rb, line 57
def place(item, x, y, width) = send(:"place_#{Body.kind(item)}", item, x, y, width)

Places the widgets of item at x, y, width wide in a static body. Returns the rows it took.