SynthMaker

Variable size slider (iPad look)

Archive · 2012 1 old post

From the original SynthMaker forum (2004–2014), with its members’ names and dates.

RRSounds ·

I want to make a slider that normally is a somewhat smaller icon view of itself, that becomes larger when you click on it. While it is large it should be adjustable. Then when you click away from it, it gets small again. My problem is keeping the output value and knob position correct when I change the size. Here is the OSM:

Any ideas? As the size changes, I would like the output float value to remain the same (I don't WANT it to change!), and for the knob position to keep its relative visual location with respect to the slider background, but it doesn't. IOW, if the knob is one third from the top when small, it should remain one-third from the top when large, etc.

It would also be nice if the large and small were centered on each other vertically, so it would seem to 'grow' and shrink out of/into the middle, rather than the top, as it is now (but I think I can fix that).

There is a loop within which the knob location and ratio are interconnected. I can't seem to find the magic spot to interrupt this loop to keep the ratio the same, while moving the knob to the new position.

I suspect it's something I have made more complicated than it needs to be, but then again sometimes I think Rube Goldberg would be right at home in SynthMaker, LOL!

Kind Regards, David

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