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147 | --[[
Licensed under GNU General Public License v2
* (c) 2017, Luke Bonham
* (c) 2013, maisvendoo
--]]
local timer = require("gears.timer")
local wibox = require("wibox")
local date = os.date
local math = math
local clock = {}
function clock.new(args)
local args = args or {}
local screen = args.screen or 1
local font = args.font or "Times"
local width = args.width or 300
local height = args.weight or 300
local x = args.x or 20
local y = args.y or 20
local bg = args.bg or "#00000000" -- transparent
clock.wibox = wibox {
bg = bg,
width = width,
height = height,
ontop = false,
visible = true,
screen = screen
}
clock.wibox : geometry { x = x, y = y }
clock.wibox : setup {
fit = function(self, context, width, height)
return width, height
end,
draw = function(self, context, cr, width, height)
-- Any params calculation
local radius = width/2 - 5
local cx = width/2
local cy = height/2
local hour_len = 15
local min_len = 7
-- Draw dial
-- Draw hour divisions
cr:set_line_width(2)
cr:set_source_rgba(0.7, 0.7, 0.7, 1)
local kx = 1.0
local ky = 1.0
for i = 0,11 do
cr:move_to(cx + kx*(radius - hour_len)*math.sin(i*math.rad(30)), cy - kx*(radius - hour_len)*math.cos(i*math.rad(30)) )
cr:line_to(cx + ky*radius*math.sin(i*math.rad(30)), cy - ky*radius*math.cos(i*math.rad(30)) )
cr:stroke()
end
-- Draw minute divisions
cr:set_line_width(1)
cr:set_source_rgba(0.7, 0.7, 0.7, 1)
for i = 0,59 do
cr:move_to(cx + kx*(radius - min_len)*math.sin(i*math.rad(6)), cy - ky*(radius - min_len)*math.cos(i*math.rad(6)) )
cr:line_to(cx + kx*radius*math.sin(i*math.rad(6)), cy - ky*radius*math.cos(i*math.rad(6)) )
cr:stroke()
end
-- Draw digits on dial
local dig_size = 50
local dig_radius = radius/1.3
local n_hours = 12
cr:select_font_face(font, 0, 0)
cr:set_font_size(dig_size)
for i = 1,n_hours do
local dig = math.floor(i*12/n_hours)
local extents = cr:text_extents(dig)
local dx = cx + kx*dig_radius*math.sin(i*math.rad(360/n_hours))
local dy = cy - ky*dig_radius*math.cos(i*math.rad(360/n_hours))
local tx = dx - extents.width/2
local ty = dy + extents.height/2
cr:move_to(tx, ty)
cr:show_text(dig)
end
-- Draw arrows
-- Get local time
local sec = date('%S')
local min = date('%M')
local hour = date('%H')
-- Set arrow length
local hour_arrow_len = radius/1.8
local min_arrow_len = radius - min_len - 8
local sec_arrow_len = radius - min_len - 6
-- Draw hour arrow
cr:set_line_width (9)
cr:set_source_rgba (1, 1, 1, 1)
cr:move_to(cx, cy)
cr:line_to(cx + hour_arrow_len*math.sin(math.rad((hour + min/60 + sec/3600)*30)), cy - hour_arrow_len*math.cos(math.rad((hour + min/60 + sec/3600)*30)) )
cr:stroke()
-- Draw minute arrow
cr:set_line_width(4)
cr:set_source_rgba(1, 1, 1, 1)
cr:move_to(cx, cy)
cr:line_to(cx + min_arrow_len*math.sin(math.rad((min + sec/60)*6)), cy - sec_arrow_len*math.cos(math.rad((min + sec/60)*6)) )
cr:stroke()
-- Draw second arrow
cr:set_line_width(2)
cr:set_source_rgba(1, 0.5, 0, 1)
cr:move_to(cx, cy)
cr:line_to(cx + sec_arrow_len*math.sin(sec*math.rad(6)), cy - sec_arrow_len*math.cos(sec*math.rad(6)) )
cr:stroke()
end,
layout = wibox.widget.base.make_widget
}
-- Create timer
clock.timer = timer { timeout = 1 }
-- Set timer callback
clock.timer:connect_signal("timeout", function()
clock.wibox.widget:emit_signal("widget::redraw_needed")
end)
-- Start timer
clock.timer:start()
end
return clock
|
