UIColor+PFColor.m

//
//  NUColor.m
//  Nucleus
//
//  Created by Bailey Seymour on 3/18/14.
//  Copyright (c) 2014 Bailey Seymour. All rights reserved.
//

#import "UIColor+PFColor.h"

#ifdef __cplusplus /* If this is a C++ compiler, use C linkage */
extern "C" {
#endif
UIColor *colorFromDefaultsWithKey(NSString *defaults, NSString *key, NSString *fallback);
UIColor *colorFromHex(NSString *hexString);
#ifdef __cplusplus /* If this is a C++ compiler, end C linkage */
}
#endif


@implementation UIColor (PFColor)

+ (UIColor *)PF_colorWithHex:(NSString *)hexString {
    return colorFromHex(hexString);
}

+ (NSString *)hexFromColor:(UIColor *)color {
    return [color hexFromColor];
}

- (NSString *)hexFromColor {
    const CGFloat *components = CGColorGetComponents(self.CGColor);
    CGFloat r = components[0];
    CGFloat g = components[1];
    CGFloat b = components[2];
    return [NSString stringWithFormat:@"#%02X%02X%02X", (int)(r * 255), (int)(g * 255), (int)(b * 255)];
}

#pragma mark Components
- (CGFloat)alpha {
    CGFloat a;
    [self getWhite:NULL alpha:&a];
    return a;
}

- (CGFloat)red {
    CGFloat r;
    [self getRed:&r green:NULL blue:NULL alpha:NULL];
    return r;
}

- (CGFloat)green {
    CGFloat g;
    [self getRed:NULL green:&g blue:NULL alpha:NULL];
    return g;
}

- (CGFloat)blue {
    CGFloat b;
    [self getRed:NULL green:NULL blue:&b alpha:NULL];
    return b;
}

- (CGFloat)hue {
    CGFloat h;
    [self getHue:&h saturation:NULL brightness:NULL alpha:NULL];
    return h;
}

- (CGFloat)saturation {
    CGFloat s;
    [self getHue:NULL saturation:&s brightness:NULL alpha:NULL];
    return s;
}

- (CGFloat)brightness {
    CGFloat b;
    [self getHue:NULL saturation:NULL brightness:&b alpha:NULL];
    return b;
}

#pragma mark Manipulation
- (UIColor *)desaturate:(CGFloat)percent {
        return [UIColor colorWithHue:[self hue]
                          saturation:[self saturation] * (1 - (percent / 100))
                          brightness:[self brightness]
                               alpha:[self alpha]];
}

- (UIColor *)lighten:(CGFloat)percent {
   return [UIColor colorWithHue:[self hue]
                     saturation:[self saturation] * (1 - (percent / 100))
                     brightness:[self brightness] * (1 + (percent / 100))
                          alpha:[self alpha]];
}

- (UIColor *)darken:(CGFloat)percent {
    return [UIColor colorWithHue:[self hue]
                      saturation:[self saturation] * (1 + (percent / 100))
                      brightness:[self brightness] * (1 - (percent / 100))
                           alpha:[self alpha]];
}

@end