Kulexiu/KulexiuForStudent/KulexiuForStudent/Module/Widget/View/WMGaugeView/WMGaugeViewStyle.h

/*
 * WMGaugeViewStyle.h
 *
 * Copyright (C) 2015 William Markezana <william.markezana@me.com>
 *
 */

#import <Foundation/Foundation.h>
#import <UIKit/UIKit.h>

/* Degrees to radians conversion macro */
#define DEGREES_TO_RADIANS(degrees) (degrees) / 180.0 * M_PI

/* Colors creation macros */
#define RGB(r,g,b) [UIColor colorWithRed:r/255.0 green:g/255.0 blue:b/255.0 alpha:1.0]
#define RGBA(r,g,b,a) [UIColor colorWithRed:r/255.0 green:g/255.0 blue:b/255.0 alpha:a/255.0]
#define CGRGB(r,g,b) RGB(r,g,b).CGColor
#define iCGRGB(r,g,b) (id)CGRGB(r,g,b)
#define CGRGBA(r,g,b,a) RGBA(r,g,b,a).CGColor
#define iCGRGBA(r,g,b,a) (id)CGRGBA(r,g,b,a)

static inline
NSArray* CGColorArray(NSArray<UIColor*>*c) {
    NSMutableArray* _c = [NSMutableArray array];
    for(UIColor* col in c) {
        [_c addObject: (id)col.CGColor];
    }
    return _c.copy;
}

static inline
CGFloat* CGFloatCArray(NSArray<NSNumber*>*a) {
    CGFloat* ar = malloc(sizeof(*ar) * a.count);
    [a enumerateObjectsUsingBlock:^(NSNumber* obj, NSUInteger idx, BOOL * _Nonnull stop) {
        ar[idx] = (CGFloat)obj.doubleValue;
    }];
    return ar;
}

/* Position macros */
#define FULL_RECT           CGRectMake(0.0, 0.0, 1.0, 1.0)
#define kCenterX            0.5
#define kCenterY            0.5
#define kCenterPoint        CGPointMake(kCenterX, kCenterY)

/* Scale conversion macro from [0-1] range to view  real size range */
#define FULLSCALE(x,y)    (x)*rect.size.width, (y)*rect.size.height

/**
 * WMGaugeView style protocol
 */
@protocol WMGaugeViewStyle <NSObject>
@required
- (void)drawNeedleOnLayer:(CALayer*)layer inRect:(CGRect)rect;
- (void)drawFaceWithContext:(CGContextRef)context inRect:(CGRect)rect;
- (BOOL)needleLayer:(CALayer*)layer willMoveAnimated:(BOOL)animated duration:(NSTimeInterval)duration animation:(CAKeyframeAnimation*)animation;

@end