sile 0.14.8

Simon’s Improved Layout Engine
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-- Basic! Transitional! In development! Not very good! Don't use it!
local plain = require("classes.plain")

local class = pl.class(plain)
class._name = "tplain"

class.defaultFrameset.content = {
  left = "8.3%pw",
  top = "11.6%ph",
  gridsize = 10,
  linegap = 7,
  linelength = 50,
  linecount = 30
}

-- The classes tplain and tbook inherit from plain and book respectively but also
-- have this bit in common; this makes it accessable
function class:_t_common ()
  self:loadPackage("font-fallback")
  self:loadPackage("hanmenkyoshi")
  self:registerPostinit(function (class_)
    class_:bidiDisableTypesetter(SILE.typesetter)
    class_:bidiDisableTypesetter(SILE.typesetters.base)
  end)
  self.defaultFrameset.content.tate = self.options.layout == "tate"
  self:declareHanmenFrame("content", self.defaultFrameset.content)
  SILE.settings:set("document.parindent", SILE.nodefactory.glue("10pt"))
end

function class:_init (options)
  plain._init(self, options)
  class._t_common(self)
end

function class:declareOptions ()
  plain.declareOptions(self)
  self:declareOption("layout", function (_, value)
    if value then
      self.layout = value
      if value == "tate" then self:loadPackage("tate") end
    end
    return self.layout
  end)
end

function class:setOptions (options)
  options.layout = options.layout or "yoko"
  plain.setOptions(self, options)
end

return class