radical/item/style/line_3d.lua

local setmetatable = setmetatable
local print = print
local pairs=pairs
local base      = require( "radical.base"     )
local beautiful = require("beautiful" )
local color = require("gears.color")
local cairo = require("lgi").cairo

local module = {
  margins = {
    TOP    = 2,
    BOTTOM = 2,
    RIGHT  = 2,
    LEFT   = 4
  }
}

local function widget_draw(self, context, cr, width, height)
  self.__drawbasic(self,context, cr, width, height)
  cr:set_source(self.col1)
  cr:rectangle(0,3,1,height-6)
  cr:fill()
  cr:set_source(self.col2)
  cr:rectangle(width-1,3,1,height-6)
  cr:fill()
end

local function draw(item,args)
  local args = args or {}

  if not item.widget._overlay_init then
    item.widget.__drawbasic = item.widget.draw
    item.widget.draw = widget_draw
    item.widget._overlay_init = true
    item.widget._item = item

    -- Build the 2 item border colors, this item_style doesn't support gradient
    -- or patterns
    item.widget.col1 = color(item.item_border_color or item.border_color or beautiful.border_color)
    local s,r,g,b,a = item.widget.col1:get_rgba()
    r,g,b = r-.2,g-.2,b-.2
    item.widget.col2 = cairo.Pattern.create_rgba(r,g,b,a)
  end

  local state = item.state or {}
  local current_state = state._current_key or nil
  local state_name = base.colors_by_id[current_state]

  if current_state == base.item_flags.SELECTED or (item._tmp_menu) then
    item.widget:set_bg(item.bg_focus)
    item.widget:set_fg(item.fg_focus)
  elseif state_name then
    item.widget:set_bg(args.color or item["bg_"..state_name])
    item.widget:set_fg(              item["fg_"..state_name])
  else
    item.widget:set_bg(args.color or nil)
    item.widget:set_fg(item["fg"])
  end
end

return setmetatable(module, { __call = function(_, ...) return draw(...) end })
-- kate: space-indent on; indent-width 2; replace-tabs on;