vol_bar.lua

require 'cairo'
function conky_draw_lines()
local updates=conky_parse('${updates}')
update_num=tonumber(updates)
if update_num > 5 then
if conky_window==nil then return end
local w=conky_window.width
local h=conky_window.height
local cs=cairo_xlib_surface_create(conky_window.display, conky_window.drawable, conky_window.visual, w, h)
cr=cairo_create(cs)
cairo_select_font_face (cr, "DejaVuSans", CAIRO_FONT_SLANT_NORMAL, CAIRO_FONT_WEIGHT_NORMAL);
cairo_set_font_size (cr, 12.0);

--Line 1 settings
local a_arg=conky_parse('${exec $HOME/.conky/vol.sh}')
local a_thick=10
local a_red=1
local a_green=0.5
local a_blue=0
local a_alpha=1
local a_start=25

--line 1 settings end
local a_num=tonumber(a_arg)
--line 1 background
cairo_set_source_rgba (cr, a_red, a_green, a_blue, 0.5);
cairo_set_line_width (cr, a_thick);
cairo_move_to (cr, a_start, a_start);
cairo_rel_line_to (cr, 0 , 100);
cairo_stroke (cr);
--line 1 indicator
cairo_set_source_rgba (cr, a_red, a_green, a_blue, a_alpha);
cairo_set_line_width (cr, a_thick);
cairo_move_to (cr, a_start, 125);
cairo_rel_line_to (cr, 0 ,0-a_num);
cairo_stroke (cr);
--line 1 title
cairo_set_source_rgba (cr, a_red, a_green, a_blue, a_alpha);
cairo_move_to (cr, 0 , 140);
cairo_show_text (cr, "Volumen");
end
end
function conky_vol_bar()
    conky_draw_lines()
end