some cpu usage improvements

[etc/awesome.git] / widgets / calendar.lua

diff --git a/widgets/calendar.lua b/widgets/calendar.lua
index 4714a546f353dedd8c4ed1fecc71e105fd3d1659..bbd6eed785bbfaecc8c9c3c1c05696f55f078363 100644 (file)
--- a/widgets/calendar.lua
+++ b/widgets/calendar.lua
@@ -15,6 +15,9 @@ local naughty      = require("naughty")
 local io           = { popen = io.popen }
 local os           = { date = os.date }
 local mouse        = mouse
+local string       = { format = string.format,
+                       sub    = string.sub,
+                       gsub   = string.gsub }
 local tonumber     = tonumber
 
 local setmetatable = setmetatable
@@ -34,12 +37,10 @@ end
 function calendar:show(t_out, inc_offset, scr)
     calendar:hide()
 
-    local offs = inc_offset or 0
-    local tims = t_out or 0
     local f, c_text
+    local offs  = inc_offset or 0
+    local tims  = t_out or 0
     local today = tonumber(os.date('%d'))
-    local init_t = calendar.cal .. ' ' .. calendar.post_cal  .. ' ' ..
-        ' | sed -r -e "s/_\\x08//g" | sed -r -e "s/(^| )('
 
     calendar.offset = calendar.offset + offs
 
@@ -49,12 +50,8 @@ function calendar:show(t_out, inc_offset, scr)
         calendar.notify_icon = calendar.icons .. today .. ".png"
 
         -- bg and fg inverted to highlight today
-        f = io.popen( init_t .. today ..
-                      ')($| )/\\1<b><span foreground=\\"'
-                      .. calendar.bg ..
-                      '\\" background=\\"'
-                      .. calendar.fg ..
-                      '\\">\\2<\\/span><\\/b>\\3/"' )
+        f = io.popen(string.format("%s | sed -r -e 's/_\\x08//g' -e '0,/(^| )%d($| )/ s/(^| )%d($| )/\\1<b><span foreground=\"%s\" background=\"%s\">%d<\\/span><\\/b>\\2/'",
+                     calendar.cal, today, today, calendar.bg, calendar.fg, today))
 
     else -- no current month showing, no day to highlight
        local month = tonumber(os.date('%m'))
@@ -62,24 +59,18 @@ function calendar:show(t_out, inc_offset, scr)
 
        month = month + calendar.offset
 
-       if month > 12 then
-           month = month % 12
-           year = year + 1
-           if month <= 0 then
-               month = 12
-           end
-       elseif month < 1 then
-           month = month + 12
-           year = year - 1
-           if month <= 0 then
-               month = 1
-           end
+       while month > 12 do
+          month = month - 12
+          year = year + 1
        end
 
-       calendar.notify_icon = nil
+       while month < 1 do
+          month = month + 12
+          year = year - 1
+       end
 
-       f = io.popen(calendar.cal .. ' ' .. month .. ' ' .. year .. ' ' ..
-            calendar.post_cal)
+       calendar.notify_icon = nil
+       f = io.popen(string.format('%s %s %s', calendar.cal, month, year))
     end
 
     c_text = "<tt><span font='" .. calendar.font .. " "
@@ -111,7 +102,6 @@ function calendar:attach(widget, args)
     local args = args or {}
 
     calendar.cal         = args.cal or "/usr/bin/cal"
-    calendar.post_cal    = args.post_cal or ""
     calendar.icons       = args.icons or icons_dir .. "cal/white/"
     calendar.font        = args.font or beautiful.font:gsub(" %d.*", "")
     calendar.font_size   = tonumber(args.font_size) or 11