RE: [Plib-users] legend update

[stathis <st...@nt...>]

Hi again,

I read carefully what everyone proposed. For my purposes the sliderCB as I initialy said 
is a "generic" callback used by many sliders, so the static idea is not solving it (globally 
defined pointers to arrays of chars do, but need 1 for each slider). I think the best 
solution would be to actually derive a class from puSlider as Sebastian said. To quickly 
solve it I ended up hacking a little bit the pu.h.I know I shouldn't but I have to get a 
solution quickly for now.

Here is what I've done, which I am sure is not the most compact and correct way of 
doing it, but it works for now:

pu.h around line 415:

  char  string  [ PUSTRING_MAX ] ;
  char  formatted  [ PUSTRING_MAX ] ; // I added this to store my formatted string

pu.h around line 482:

  char *getStringValue () { return res_string ? res_string : string ; }
  // I added the one below
  char *getStringValue (const char * format) {
	  sprintf(formatted, format, string);
	  return res_string ? res_string : formatted ; 
  }


This allows me to change my initial solution with the long digit output

from:
slicb->setLegend(slicb->getStringValue());

to:
slicb->setLegend(slicb->getStringValue("%.4s"));

Now all my sliders will return me a user defined formatted output. I don't think this will 
break the other widgets, but feel free to correct me.

I'm sorry I don't mean to intrude the inner workings of this so nice library so I will move 
my stuff where it belongs when time and skill allows. (Be kind I'm not a pro programmer).

Thank you very much for the input.

stathis