55 lines
927 B
Objective-C
55 lines
927 B
Objective-C
//
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// MPMathRules.m
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// MathPad
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//
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// Created by Kim Wittenburg on 14.09.14.
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// Copyright (c) 2014 Kim Wittenburg. All rights reserved.
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//
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#import "MPMathRules.h"
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NSString *MPMathRulesIsUsingDegreesKey = @"MPMathRulesIsUsingDegreesKey";
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@implementation MPMathRules
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static MPMathRules *sharedRules;
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+ (MPMathRules *)sharedRules
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{
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if (!sharedRules) {
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sharedRules = [[MPMathRules alloc] init];
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}
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return sharedRules;
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}
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- (instancetype)init
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{
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if (sharedRules) {
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return sharedRules;
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}
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self = [super init];
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if (self) {
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}
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return self;
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}
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- (BOOL)isUsingDegrees
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{
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return [[NSUserDefaults standardUserDefaults] boolForKey:MPMathRulesIsUsingDegreesKey];
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}
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- (void)setIsUsingDegrees:(BOOL)isUsingDegrees
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{
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[[NSUserDefaults standardUserDefaults] setBool:isUsingDegrees
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forKey:MPMathRulesIsUsingDegreesKey];
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}
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@end
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