There's something odd about the API for the fltk-2 ProgressBar widget - specifically, the other valuator-like widgets have a setter method step(x) that modifies the size of the step by which the widget changes.
In ProgressBar, the setter method called step(x) does not modify the step parameter (called mStep in ProgressBar's case), rather, it modifies the present value of the progress bar slider (called mPresent) which seems to largely duplicate the purpose of the position (x) setter method. Indeed, the mStep member variable doesn't actually seem to be used at all, which seems quite odd. What is it for, why is it set by the range (a,b,c) method and returned by the step() getter method, when it is not used? And why does the step() getter method not return what is set by the step(x) setter method? It all seems a bit uneven to me. Anyway, I find it confusing that this widget's API is similar to, but different from (for example) an essentially similar slider widget - I assume this is just a loose end that will be tidied up before fltk-2 finds its way into general use? Actually, while I have my ranting hat on anyway, the ProgressBar code looks to violate the coding guideline, since it specifically states that non-public member variables should be marked by a trailing underscore, e.g. "step_" rather then "mStep". I imagine that's another loose end that will be fixed? Confused, -- Ian _______________________________________________ fltk mailing list [email protected] http://lists.easysw.com/mailman/listinfo/fltk
