GUI: display upper & lower bound of pitch range in all skins

[mixxxbot]

Reported by: ronso0
Date: 2018-04-08T13:14:49Z
Status: In Progress
Importance: Low
Launchpad Issue: lp1762174
Tags: skin

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Update all skins to show the upper and lower bounds of the pitch slider's current range.

Allows GUI implementation of ultra-pitch feature lp:1762172

Related: lp:1317572 Show pitch range in GUI Edit

[mixxxbot]

Commented by: ronso0
Date: 2018-04-08T15:31:39Z

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While doing a quick test I noticed it's not possible to use [Controls],RateRangePercent or [ChannelN],rateRange for visibility connections in skins or use them directly for <Number>

Developer tools > Controls says
[ChannelN],rateRange
value = 0,08
parameter = 0,0786517

[Controls],RateRangePercent
value/parameter = 0

Altering [Controls],RateRangePercent via Dev.tools to match the visibility connection works, but has no effect on the engine.

OTOH setting pitch range via Preferences > Decks to match the visibility connection doesn't affect widgets visibility.

How can this be solved?
Optimum IMO would be to have a CO [ChannelN],RateRangePercent (just in case decks have different ranges set via controller script) which can simply be used for a <Number> widget.
For ultra-pitch feature this would be a bit more complicated, though...

[mixxxbot]

Duplicate of #7467