assault.lua

local assault = wibox.widget.base.make_widget()
function assault.fit (assault, width, height)
	local width = math.min(width, assault.size.width)
	local height = math.min(height, assault.size.height)
	return width, height
end

local battery_bolt_generate = function (width, height)
   local surface = cairo.ImageSurface.create('A8', width, height)
   local cr = cairo.Context.create(surface)
	
	cr:new_path()

	cr:move_to(width * ( 0.0/19), height * ( 3.0/11))
	cr:line_to(width * (11.0/19), height * (11.0/11))
	cr:line_to(width * (11.0/19), height * ( 5.5/11))
	cr:line_to(width * (19.0/19), height * ( 8.0/11))
	cr:line_to(width * ( 8.0/19), height * ( 0.0/11))
	cr:line_to(width * ( 8.0/19), height * ( 5.5/11))

	cr:close_path()

	return cr:copy_path()
end

function assault.draw (assault, wibox, cr, width, height)
	battery_bolt_generate(width, height)
	cr:fill()
end

-- Build properties function
for _, prop in ipairs(properties) do
    if not progressbar["set_" .. prop] then
        progressbar["set_" .. prop] = function(pbar, value)
            data[pbar][prop] = value
            pbar:emit_signal("widget::updated")
            return pbar
        end
    end
end

--- Create an assault widget
function assault.new (args)
	local args = args or {}
	local width = args.width or 36
	local height = args.height or 15

	args.type = "imagebox"

	local widget = base.make_widget()

	data[widget] = {
		width = width,
		height = height
	}

	-- Set methods
	for _, prop in ipairs(properties) do
		widget["set_" .. prop] = assault["set_" .. prop]
	end

	pbar.draw = assault.draw
	pbar.fit = progressbar.fit

	return pbar
end

function progressbar.mt:__call(...)
    return progressbar.new(...)
end


return setmetatable(assault, assault.mt)