Re: [lcd4linux] Request for enhancement of Bar Widget for the graphical driver

[Michael R. <mi...@re...>]

Hi Dimitry,

sounds interesting!

As I currently don't have a graphical (and color!) display around, some gif demos would be nice!

greetings, Michael


Am 2012-05-16 04:17, schrieb Dmitry Yermolenko:
> Hi there,
>
> I'm not sure if this is the best way to reach out to lcd4linux developers,
> so please feel free to forward it to the proper addresses.
>
> First of all, I wanted to thank everyone for such a great utility! I started
> using it recently on my router and NAS with the help of small Coby DP-152
> dpf's.
>
> The reason for my contacting developers is a request for enhancement of Bar
> Widget for the graphical driver. Many use cases for the Bar Widget require
> utilization of two expressions, but split-bar is not natural/useful in some
> situations. For example:
> - on small screens
> - for CPU or RAM usage indicators when values should stack up (e.g. show CPU
> as "user + system + idle"; and RAM as "used + buffers + free")
> - for indicators that would benefit from a threshold notification (e.g.
> filesystem utilization when it reaches 90% or other preferred threshold)
>
> The enhancement that I'd like to propose will introduce the following new
> behaviors of bar gauges - have them overlay each other (obviously using
> different colors) and be able to choose one of two modes:
> 1) smaller gauge is always on top of the bigger one; and use the first gauge
> (a.k.a. bar0) in case they are equal - this mode will be introduced as style
> 'Y', and 'y' for 'Y'+'H'
> 2) first gauge (the bar0) is always on top of the second (the bar1) - will
> be called style 'F', a 'f' for 'F'+'H'
>
> I've already prepared the changes and made some optimizations to the part of
> the code that renders the widget for the graphical driver. The changes are
> 100% backward compatible.  The patch to the latest SVN revision is attached
> as well as configuration examples to demonstrate the new modes.  Could
> someone please review the changes and advice whether anything else needs to
> be changed?  If any, I'll look into the suggestion(s) to make the changes
> ready for submission into trunk.
>
> Please let me know if you'd like me to prepare some gif-animations to
> demonstrate the new behavior or if you need any explanation/comments to the
> code.
>
> Thanks,
>
> :-Dmitry
>
>
>
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Michael Reinelt <mi...@re...>
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