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Fixed another 1 pixel discrepancy
[etc/awesome.git] / widgets / calendar.lua
1
2 --[[
3                                                   
4      Licensed under GNU General Public License v2 
5       * (c) 2013, Luke Bonham                     
6                                                   
7 --]]
8
9 local icons_dir    = require("lain.helpers").icons_dir
10
11 local awful        = require("awful")
12 local beautiful    = require("beautiful")
13 local naughty      = require("naughty")
14
15 local io           = { popen = io.popen }
16 local os           = { date = os.date }
17 local mouse        = mouse
18 local tonumber     = tonumber
19
20 local setmetatable = setmetatable
21
22 -- Calendar notification
23 -- lain.widgets.calendar
24 local calendar = {}
25 local cal_notification = nil
26
27 function calendar:hide()
28     if cal_notification ~= nil then
29         naughty.destroy(cal_notification)
30         cal_notification = nil
31     end
32 end
33
34 function calendar:show(t_out, inc_offset, scr)
35     calendar:hide()
36
37     local offs = inc_offset or 0
38     local tims = t_out or 0
39     local f, c_text
40     local today = tonumber(os.date('%d'))
41     local init_t = calendar.cal .. ' ' .. calendar.post_cal  .. ' ' ..
42         ' | sed -r -e "s/_\\x08//g" | sed -r -e "s/(^| )('
43
44     calendar.offset = calendar.offset + offs
45
46     if offs == 0 or calendar.offset == 0
47     then -- current month showing, today highlighted
48         calendar.offset = 0
49         calendar.notify_icon = calendar.icons .. today .. ".png"
50
51         -- bg and fg inverted to highlight today
52         f = io.popen( init_t .. today ..
53                       ')($| )/\\1<b><span foreground=\\"'
54                       .. calendar.bg ..
55                       '\\" background=\\"'
56                       .. calendar.fg ..
57                       '\\">\\2<\\/span><\\/b>\\3/"' )
58
59     else -- no current month showing, no day to highlight
60        local month = tonumber(os.date('%m'))
61        local year = tonumber(os.date('%Y'))
62
63        month = month + calendar.offset
64
65        if month > 12 then
66            month = month % 12
67            year = year + 1
68            if month <= 0 then
69                month = 12
70            end
71        elseif month < 1 then
72            month = month + 12
73            year = year - 1
74            if month <= 0 then
75                month = 1
76            end
77        end
78
79        calendar.notify_icon = nil
80
81        f = io.popen(calendar.cal .. ' ' .. month .. ' ' .. year .. ' ' ..
82             calendar.post_cal)
83     end
84
85     c_text = "<tt><span font='" .. calendar.font .. " "
86              .. calendar.font_size .. "'><b>"
87              .. f:read() .. "</b>\n\n"
88              .. f:read() .. "\n"
89              .. f:read("*all"):gsub("\n*$", "")
90              .. "</span></tt>"
91     f:close()
92
93     if calendar.followmouse then
94         scrp = mouse.screen
95     else
96         scrp = scr or calendar.scr_pos
97     end
98
99     cal_notification = naughty.notify({
100         text = c_text,
101         icon = calendar.notify_icon,
102         position = calendar.position,
103         fg = calendar.fg,
104         bg = calendar.bg,
105         timeout = tims,
106         screen = scrp
107     })
108 end
109
110 function calendar:attach(widget, args)
111     local args = args or {}
112
113     calendar.cal         = args.cal or "/usr/bin/cal"
114     calendar.post_cal    = args.post_cal or ""
115     calendar.icons       = args.icons or icons_dir .. "cal/white/"
116     calendar.font        = args.font or beautiful.font:sub(beautiful.font:find(""),
117                            beautiful.font:find(" "))
118     calendar.font_size   = tonumber(args.font_size) or 11
119     calendar.fg          = args.fg or beautiful.fg_normal or "#FFFFFF"
120     calendar.bg          = args.bg or beautiful.bg_normal or "#000000"
121     calendar.position    = args.position or "top_right"
122     calendar.scr_pos     = args.scr_pos or 1
123     calendar.followmouse = args.followmouse or false
124
125     calendar.fg = string.sub(calendar.fg, 1, 7)
126     calendar.bg = string.sub(calendar.bg, 1, 7)
127
128     calendar.offset      = 0
129     calendar.notify_icon = nil
130
131     widget:connect_signal("mouse::enter", function () calendar:show(0, 0, calendar.scr_pos) end)
132     widget:connect_signal("mouse::leave", function () calendar:hide() end)
133     widget:buttons(awful.util.table.join(awful.button({ }, 1, function ()
134                                              calendar:show(0, -1, calendar.scr_pos) end),
135                                          awful.button({ }, 3, function ()
136                                              calendar:show(0, 1, calendar.scr_pos) end),
137                                          awful.button({ }, 4, function ()
138                                              calendar:show(0, -1, calendar.scr_pos) end),
139                                          awful.button({ }, 5, function ()
140                                              calendar:show(0, 1, calendar.scr_pos) end)))
141 end
142
143 return setmetatable(calendar, { __call = function(_, ...) return create(...) end })