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README: add format function example for overriding symbols

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1 parent 7e81bb8 commit 73db82b4c9cec2b966b0beff2153b9678aa44e48 @anrxc anrxc committed Jan 20, 2012
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@@ -510,6 +510,20 @@ Example
cores on a single graph, the textbox "ctext" is just an empty
placeholder, graph is updated every 3 seconds
+A lot of users are not happy with default symbols used in volume,
+battery, cpufreq and other widget types. You can use your own symbols
+without any need to modify modules.
+
+ volumewidget = widget({ type = "textbox"})
+ vicious.register(volumewidget, vicious.widgets.volume,
+ function(widget, args)
+ local label = { ["♫"] = "O", ["♩"] = "M" }
+ return "Volume: " .. args[1] .. "% State: " .. label[args[2]]
+ end, 2, "PCM")
+
+ - uses a custom table map to modify symbols representing the mixer
+ state; on or off/mute
+
Other
-----

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