New feature : "inactive (disabled)" segmentIndicator about nysegmentedcontrol

[colasbd]

roadmap:

• add interface for disabling; idea: by a delegate
  -(BOOL)segmentedControl:(NYSegmentedControl *)sc isIndicatorEnabledAtIndex:(NSUInteger)index
• new settings for the color of the disabled indicators
• implement disabling:
  1. if one tap : nothing happens (easy)
  2. sliding : more difficult? I have no idea (have to look at your code)
  3. when selected by code: nothing happens (easy)

----> what do you think?

[colasbd]

BETTER idea:

add a delegate for the "should select"

@protocol NYSegmentedControlDelegate <NSObject>

- (BOOL)segmentedControl:(NYSegmentedControl *)segmentedControl shouldSelectIndex:(NSUInteger)index ;

@end

add a datasourcer for the color

@protocol NYSegmentedControlStyler <NSObject>

- (UIColor *)segmentedControl:(NYSegmentedControl *)segmentedControl colorForTitleAtIndex:(NSUInteger)index ;
- (UIFont *)segmentedControl:(NYSegmentedControl *)segmentedControl fontForTitleAtIndex:(NSUInteger)index ;

@end

What do you think? Good idea? I might need help for managing the case of sliding when a indicator is not selectable.

But for the rest, if you are OK, I can do a PR.