Review Request: New KSignalPlotter graph for plotting continuous data as it comes in

[John Tapsell]

> On 2009-09-15 07:51:21, Andreas Kling wrote:
> > Let's see..
> > 
> > * The "beam order" related API (addBeam() & co) is a bit awkward. I'd prefer more explicit initialization, something like setBeamColor()
> > * removeBeam() takes an "uint position", while similar functions take an "int index"
> > * numBeams(), beamColor() should be const
> > 
> > All in all though, pretty cool class! Just needs some API polish. :)

* The "beam order" related API (addBeam() & co) is a bit awkward. I'd prefer more explicit initialization, something like setBeamColor()
There is actually already a setBeamColor().  I could change addBeam(color) to addBeam(); setBeamColor(0, color);   although that's a bit more clumsy.

The reordering of beams kinda sucks, but I don't particularly see a better way.

* removeBeam() takes an "uint position", while similar functions take an "int index"
Done
* numBeams(), beamColor() should be const
Done


- John


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On 2009-08-29 10:45:29, John Tapsell wrote:
> 
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> 
> (Updated 2009-08-29 10:45:29)
> 
> 
> Review request for kdelibs.
> 
> 
> Summary
> -------
> 
> This is used by KSysGuard to plot network usage etc.  I want to make it available for other people to use.
> 
> It is really quite feature-full, and uses a sliding window technique to minimize CPU usage for drawing.  On my system (dual core 3Ghz), drawing three of these graphs updating every 0.5 seconds takes about 1% of the CPU usage.
> 
> 
> Diffs
> -----
> 
>   trunk/KDE/kdeui/plotting/KSignalPlotter.h PRE-CREATION 
>   trunk/KDE/kdeui/plotting/KSignalPlotter.cpp PRE-CREATION 
>   trunk/KDE/kdeui/plotting/KSignalPlotter_p.h PRE-CREATION 
> 
> Diff: http://reviewboard.kde.org/r/1430/diff
> 
> 
> Testing
> -------
> 
> It has been used in KSysGuard for ages.
> 
> It has no unit tests however :-/
> 
> 
> Screenshots
> -----------
> 
> Screenshot in action
>   http://reviewboard.kde.org/r/1430/s/191/
> 
> 
> Thanks,
> 
> John
> 
>