Log all used CAFilter operations

gistfile1.txt

typedef struct CAColorMatrix {
    float m11, m12, m13, m14, m15;
    float m21, m22, m23, m24, m25;
    float m31, m32, m33, m34, m35;
    float m41, m42, m43, m44, m45;
} CAColorMatrix;

@interface CAFilter : NSObject

@property(copy) NSString *name;
@property(readonly) NSString *type;

@end

@implementation NSValue (CAFilterVerbose)

+ (void)load
{
    class_swizzleSelector(self, @selector(description), @selector(__verboseDescription));
}

- (NSString *)__verboseDescription
{
    if (strcmp(self.objCType, @encode(CAColorMatrix)) == 0) {
        CAColorMatrix colorMatrix;
        
        [self getValue:&colorMatrix];
        return [NSString stringWithFormat:@"CAColorMatrix: {{%lf, %lf, %lf, %lf, %lf}, {%lf, %lf, %lf, %lf, %lf}, {%lf, %lf, %lf, %lf, %lf}, {%lf, %lf, %lf, %lf, %lf}}", colorMatrix.m11, colorMatrix.m12, colorMatrix.m13, colorMatrix.m14, colorMatrix.m15, colorMatrix.m21, colorMatrix.m22, colorMatrix.m23, colorMatrix.m24, colorMatrix.m25, colorMatrix.m31, colorMatrix.m32, colorMatrix.m33, colorMatrix.m34, colorMatrix.m35, colorMatrix.m41, colorMatrix.m42, colorMatrix.m43, colorMatrix.m44, colorMatrix.m45];
    }
    
    return [self __verboseDescription];
}

@end

@implementation CAFilter (Verbose)

+ (void)load
{
    class_swizzleSelector(self, @selector(setValue:forKey:), @selector(__verboseSetValue:forKey:));
}

- (void)__verboseSetValue:(id)value forKey:(NSString *)key
{
    [self __verboseSetValue:value forKey:key];
    
    NSLog(@"%@[%@] = %@", self.name, key, value);
}

@end