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#import "MGLCoordinateFormatter.h"
#import "NSValue+MGLAdditions.h"
@implementation MGLCoordinateFormatter {
NSNumberFormatter *_numberFormatter;
}
- (instancetype)init {
if (self = [super init]) {
_numberFormatter = [[NSNumberFormatter alloc] init];
_numberFormatter.numberStyle = NSNumberFormatterDecimalStyle;
_numberFormatter.maximumFractionDigits = 0;
}
return self;
}
- (NSString *)stringFromCoordinate:(CLLocationCoordinate2D)coordinate {
return [NSString stringWithFormat:NSLocalizedString(@"%@, %@", @"Latitude, longitude format"),
[self stringFromLocationDegrees:coordinate.latitude
positiveFormat:NSLocalizedString(@"%@N", @"North latitude format")
negativeFormat:NSLocalizedString(@"%@S", @"South latitude format")],
[self stringFromLocationDegrees:coordinate.longitude
positiveFormat:NSLocalizedString(@"%@E", @"East longitude format")
negativeFormat:NSLocalizedString(@"%@W", @"West longitude format")]];
}
- (NSString *)stringFromLocationDegrees:(CLLocationDegrees)degrees positiveFormat:(NSString *)positiveFormat negativeFormat:(NSString *)negativeFormat {
CLLocationDegrees minutes = (fabs(degrees) - floor(fabs(degrees))) * 60;
CLLocationDegrees seconds = (minutes - floor(minutes)) * 60;
NSMutableString *string = [NSMutableString stringWithFormat:NSLocalizedString(@"%@°", @"Degrees of arc format"),
[_numberFormatter stringFromNumber:@(floor(fabs(degrees)))]];
if (trunc(minutes) > 0 || trunc(seconds) > 0) {
[string appendFormat:NSLocalizedString(@"%@′", @"Arcminutes format"),
[_numberFormatter stringFromNumber:@(floor(minutes))]];
}
if (trunc(seconds) > 0) {
[string appendFormat:NSLocalizedString(@"%@″", @"Arcseconds format"),
[_numberFormatter stringFromNumber:@(seconds)]];
}
if (degrees == 0) {
return string;
}
return [NSString stringWithFormat:degrees > 0 ? positiveFormat : negativeFormat, string];
}
- (nullable NSString *)stringForObjectValue:(id)obj {
if (![obj isKindOfClass:[NSValue class]]) {
return nil;
}
return [self stringFromCoordinate:[obj MGLCoordinateValue]];
}
- (BOOL)getObjectValue:(out id __nullable * __nullable)obj forString:(NSString *)string errorDescription:(out NSString * __nullable * __nullable)error {
NSAssert(NO, @"-getObjectValue:forString:errorDescription: has not been implemented");
return NO;
}
@end
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