mod_xrandr/mod_xrandr.lua

   1 --
   2
   3 if package.loaded["mod_xrandr"] then return end
   4
   5 if not notioncore.load_module("mod_xrandr") then
   6     return
   7 end
   8
   9 local mod_xrandr=_G["mod_xrandr"]
  10
  11 assert(mod_xrandr)
  12
  13 if not package.loaded["mod_xinerama"] then
  14     dopath("mod_xinerama")
  15 end
  16
  17 function filter(t, predicate)
  18      local result = {}
  19      for k,v in pairs(t) do
  20          if predicate(v) then
  21              result[k]=v
  22          end
  23      end
  24      return result
  25  end
  26
  27 function mod_xrandr.get_outputs(screen)
  28     -- get outputs based on geometry of this screen
  29     return mod_xrandr.get_outputs_for_geom(screen:geom())
  30 end
  31
  32 function falls_within(geom)
  33     return function(output)
  34       local result = output.x >= geom.x and output.y <= geom.y
  35         and output.x + output.w <= geom.x + geom.w
  36         and output.y + output.h <= geom.y + geom.h
  37       return result;
  38     end
  39 end
  40
  41 function mod_xrandr.get_outputs_within(all_outputs, screen)
  42     return filter(all_outputs, falls_within(screen:geom()))
  43 end
  44
  45 -- Mark ourselves loaded.
  46 package.loaded["mod_xrandr"]=true
  47
  48 -- Load configuration file
  49 dopath("cfg_xrandr", true)