bf313b0c5f
Fixed an issue causing angles that are multiples of 360°, such as 720°, to be described as 0 o’clock. Fixed a crash when a compass direction is close enough to 360° to round up to 360°.
60 lines
2.0 KiB
Objective-C
60 lines
2.0 KiB
Objective-C
#import "MGLClockDirectionFormatter.h"
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#import "NSBundle+MGLAdditions.h"
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#define wrap(value, min, max) \
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(fmod((fmod((value - min), (max - min)) + (max - min)), (max - min)) + min)
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@implementation MGLClockDirectionFormatter {
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NSNumberFormatter *_numberFormatter;
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}
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- (instancetype)init {
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if (self = [super init]) {
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_unitStyle = NSFormattingUnitStyleMedium;
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_numberFormatter = [[NSNumberFormatter alloc] init];
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_numberFormatter.numberStyle = NSNumberFormatterDecimalStyle;
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}
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return self;
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}
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- (NSString *)stringFromDirection:(CLLocationDirection)direction {
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NSInteger hour = round(wrap(direction, 0, 360) / 360 * 12);
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if (hour == 0) {
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hour = 12;
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}
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NSString *format;
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switch (self.unitStyle) {
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case NSFormattingUnitStyleShort:
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format = NSLocalizedStringWithDefaultValue(@"CLOCK_FMT_SHORT", @"Foundation", nil, @"%@:00", @"Clock position format, short: {hours}:00");
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break;
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case NSFormattingUnitStyleMedium:
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format = NSLocalizedStringWithDefaultValue(@"CLOCK_FMT_MEDIUM", @"Foundation", nil, @"%@ o’clock", @"Clock position format, medium: {hours} o’clock");
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break;
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case NSFormattingUnitStyleLong:
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format = NSLocalizedStringWithDefaultValue(@"CLOCK_FMT_LONG", @"Foundation", nil, @"%@ o’clock", @"Clock position format, long: {hours} o’clock");
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break;
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default:
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break;
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}
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return [NSString stringWithFormat:format, [_numberFormatter stringFromNumber:@(hour)]];
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}
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- (nullable NSString *)stringForObjectValue:(id)obj {
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if (![obj isKindOfClass:[NSValue class]]) {
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return nil;
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}
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return [self stringFromDirection:[obj doubleValue]];
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}
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- (BOOL)getObjectValue:(out id __nullable * __nullable)obj forString:(NSString *)string errorDescription:(out NSString * __nullable * __nullable)error {
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NSAssert(NO, @"-getObjectValue:forString:errorDescription: has not been implemented");
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return NO;
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}
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@end
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