1 files changed, 34 insertions, 0 deletions
diff --git a/config.dot/awesome.link/widgets/volume.lua b/config.dot/awesome.link/widgets/volume.lua
new file mode 100644
index 0000000..c183cb9
--- /dev/null
+++ b/config.dot/awesome.link/widgets/volume.lua
@@ -0,0 +1,34 @@
+-- See http://awesome.naquadah.org/wiki/Volume_control_and_display
+volume_widget = widget({ type = "textbox", name = "tb_volume",
+                         align = "right" })
+
+function update_volume(widget)
+    local fd = io.popen("amixer sget Master")
+    local status = fd:read("*all")
+    fd:close()
+    
+    local volume = tonumber(string.match(status, "(%d?%d?%d)%%")) / 100
+    -- volume = string.format("% 3d", volume)
+
+    status = string.match(status, "%[(o[^%]]*)%]")
+
+    -- starting colour
+    local sr, sg, sb = 0x3F, 0x3F, 0x3F
+    -- ending colour
+    local er, eg, eb = 0xDC, 0xDC, 0xCC
+
+    local ir = volume * (er - sr) + sr
+    local ig = volume * (eg - sg) + sg
+    local ib = volume * (eb - sb) + sb
+    interpol_colour = string.format("%.2x%.2x%.2x", ir, ig, ib)
+    if string.find(status, "on", 1, true) then
+        volume = " <span background='#" .. interpol_colour .. "'>   </span>"
+    else
+        volume = " <span color='red' background='#" .. interpol_colour .. "'> M </span>"
+    end
+    widget.text = volume
+ end
+
+volumeTimer = timer({ timeout = 1 })
+volumeTimer:add_signal("timeout", function () update_volume(volume_widget) end)
+volumeTimer:start()