+ int range = [slider maxValue] - [slider minValue] + 1;
+ int range2 = range;
+ int max_ticks = 21;
+ while (range2 > max_ticks)
+ range2 /= 10;
+
+ // If we have elided ticks, leave it at the max number of ticks.
+ if (range != range2 && range2 < max_ticks)
+ range2 = max_ticks;
+
+ // If it's a float, always display the max number of ticks.
+ if (float_p && range2 < max_ticks)
+ range2 = max_ticks;
+
+ [slider setNumberOfTickMarks:range2];
+
+ [slider setAllowsTickMarkValuesOnly:
+ (range == range2 && // we are showing the actual number of ticks
+ !float_p)]; // and we want integer results
+
+ // #### Note: when the slider's range is large enough that we aren't
+ // showing all possible ticks, the slider's value is not constrained
+ // to be an integer, even though it should be...
+ // Maybe we need to use a value converter or something?
+