84 lines
3.2 KiB
Objective-C
84 lines
3.2 KiB
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 *MPMathRulesMaximumOperatorChainLengthKey = @"MPMathRulesMaximumOperatorChainLengthKey";
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NSString *MPMathRulesMaximumOperatorChainLengthInMultiplicationKey = @"MPMathRulesMaximumOperatorChainLengthInMultiplicationKey";
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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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_usingUserDefaultValues = YES;
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NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults];
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NSNumber *userDefaultsMaximumOperatorChainLength = [userDefaults objectForKey:MPMathRulesMaximumOperatorChainLengthKey];
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NSNumber *userDefaultsMaximumOperatorChainLengthInMultiplication = [userDefaults objectForKey:MPMathRulesMaximumOperatorChainLengthInMultiplicationKey];
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NSNumber *userDefaultsIsUsingDegrees = [userDefaults objectForKey:MPMathRulesIsUsingDegreesKey];
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_maximumOperatorChainLength = userDefaultsMaximumOperatorChainLength != nil ? userDefaultsMaximumOperatorChainLength.unsignedIntegerValue : 2;
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_maximumOperatorChainLengthInMultiplication = userDefaultsMaximumOperatorChainLengthInMultiplication != nil ? userDefaultsMaximumOperatorChainLengthInMultiplication.unsignedIntegerValue : 1;
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_isUsingDegrees = userDefaultsIsUsingDegrees.boolValue;
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}
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return self;
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}
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- (void)setUsingUserDefaultValues:(BOOL)usingUserDefaultValues
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{
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_usingUserDefaultValues = usingUserDefaultValues;
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// Save the current values
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self.maximumOperatorChainLength = self.maximumOperatorChainLength;
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self.maximumOperatorChainLengthInMultiplication = self.maximumOperatorChainLengthInMultiplication;
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self.isUsingDegrees = self.isUsingDegrees;
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}
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- (void)setMaximumOperatorChainLength:(NSUInteger)maximumOperatorChainLength
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{
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_maximumOperatorChainLength = maximumOperatorChainLength;
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if (self.isUsingUserDefaultValues) {
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[[NSUserDefaults standardUserDefaults] setObject:@(maximumOperatorChainLength)
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forKey:MPMathRulesMaximumOperatorChainLengthKey];
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}
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}
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- (void)setMaximumOperatorChainLengthInMultiplication:(NSUInteger)maximumOperatorChainLengthInMultiplication
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{
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_maximumOperatorChainLengthInMultiplication = maximumOperatorChainLengthInMultiplication;
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if (self.isUsingUserDefaultValues) {
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[[NSUserDefaults standardUserDefaults] setObject:@(maximumOperatorChainLengthInMultiplication)
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forKey:MPMathRulesMaximumOperatorChainLengthInMultiplicationKey];
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}
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}
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- (void)setIsUsingDegrees:(BOOL)isUsingDegrees
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{
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_isUsingDegrees = isUsingDegrees;
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if (self.isUsingUserDefaultValues) {
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[[NSUserDefaults standardUserDefaults] setBool:isUsingDegrees
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forKey:MPMathRulesIsUsingDegreesKey];
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}
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}
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@end
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