honeylisp/vendor/lite-plugins/plugins/centerdoc.lua

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local config = require "core.config"
local DocView = require "core.docview"
local draw_line_gutter = DocView.draw_line_gutter
local get_gutter_width = DocView.get_gutter_width
function DocView:draw_line_gutter(idx, x, y)
local offset = self:get_gutter_width() - get_gutter_width(self)
draw_line_gutter(self, idx, x + offset, y)
end
function DocView:get_gutter_width()
local real_gutter_width = get_gutter_width(self)
local width = real_gutter_width + self:get_font():get_width("n") * config.line_limit
return math.max((self.size.x - width) / 2, real_gutter_width)
end