--[[

     Licensed under GNU General Public License v2
      * (c) 2015, Luca CPZ
      * (c) 2015, plotnikovanton

--]]

local wibox = require('wibox')
local gears = require('gears')
local beautiful = require('beautiful')

-- Lain Cairo separators util submodule
-- lain.util.separators
local separators = { height = beautiful.separators_height or 0, width = beautiful.separators_width or 9 }

-- [[ Arrow

-- Right
function separators.arrow_right(col1, col2)
	local widget = wibox.widget.base.make_widget()
	widget.col1 = col1
	widget.col2 = col2

	widget.fit = function(_, _, _)
		return separators.width, separators.height
	end

	widget.update = function(_, _)
		widget.col1 = col1
		widget.col2 = col2
		widget:emit_signal('widget::redraw_needed')
	end

	widget.draw = function(_, _, cr, width, height)
		if widget.col2 ~= 'alpha' then
			cr:set_source_rgba(gears.color.parse_color(widget.col2))
			cr:new_path()
			cr:move_to(0, 0)
			cr:line_to(width, height / 2)
			cr:line_to(width, 0)
			cr:close_path()
			cr:fill()

			cr:new_path()
			cr:move_to(0, height)
			cr:line_to(width, height / 2)
			cr:line_to(width, height)
			cr:close_path()
			cr:fill()
		end

		if widget.col1 ~= 'alpha' then
			cr:set_source_rgba(gears.color.parse_color(widget.col1))
			cr:new_path()
			cr:move_to(0, 0)
			cr:line_to(width, height / 2)
			cr:line_to(0, height)
			cr:close_path()
			cr:fill()
		end
	end

	return widget
end

-- Left
function separators.arrow_left(col1, col2)
	local widget = wibox.widget.base.make_widget()
	widget.col1 = col1
	widget.col2 = col2

	widget.fit = function(_, _, _)
		return separators.width, separators.height
	end

	widget.update = function(c1, c2)
		widget.col1 = c1
		widget.col2 = c2
		widget:emit_signal('widget::redraw_needed')
	end

	widget.draw = function(_, _, cr, width, height)
		if widget.col1 ~= 'alpha' then
			cr:set_source_rgba(gears.color.parse_color(widget.col1))
			cr:new_path()
			cr:move_to(width, 0)
			cr:line_to(0, height / 2)
			cr:line_to(0, 0)
			cr:close_path()
			cr:fill()

			cr:new_path()
			cr:move_to(width, height)
			cr:line_to(0, height / 2)
			cr:line_to(0, height)
			cr:close_path()
			cr:fill()
		end

		if widget.col2 ~= 'alpha' then
			cr:new_path()
			cr:move_to(width, 0)
			cr:line_to(0, height / 2)
			cr:line_to(width, height)
			cr:close_path()

			cr:set_source_rgba(gears.color.parse_color(widget.col2))
			cr:fill()
		end
	end

	return widget
end

-- ]]

return separators