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//
// GTMFourCharCode.m
// Wrapper for FourCharCodes
//
// Copyright 2008 Google Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License"); you may not
// use this file except in compliance with the License. You may obtain a copy
// of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations under
// the License.
//
#import "GTMDefines.h"
#import "GTMFourCharCode.h"
#import <CoreServices/CoreServices.h>
@implementation GTMFourCharCode
+ (id)stringWithFourCharCode:(FourCharCode)code {
return GTMCFAutorelease(UTCreateStringForOSType(code));
}
+ (id)fourCharCodeWithString:(NSString*)string {
return [[[self alloc] initWithString:string] autorelease];
}
+ (id)fourCharCodeWithFourCharCode:(FourCharCode)code {
return [[[self alloc] initWithFourCharCode:code] autorelease];
}
- (id)initWithString:(NSString*)string {
NSUInteger length = [string length];
if (length == 0 || length > 4) {
[self release];
return nil;
} else {
return [self initWithFourCharCode:UTGetOSTypeFromString((CFStringRef)string)];
}
}
- (id)initWithFourCharCode:(FourCharCode)code {
if ((self = [super init])) {
code_ = code;
}
return self;
}
- (id)initWithCoder:(NSCoder *)aDecoder {
if ((self = [super init])) {
code_ = [aDecoder decodeInt32ForKey:@"FourCharCode"];
}
return self;
}
- (void)encodeWithCoder:(NSCoder *)aCoder {
[aCoder encodeInt32:code_ forKey:@"FourCharCode"];
}
- (id)copyWithZone:(NSZone *)zone {
return [[[self class] alloc] initWithFourCharCode:code_];
}
- (BOOL)isEqual:(id)object {
return [object isKindOfClass:[self class]] && [object fourCharCode] == code_;
}
- (NSUInteger)hash {
return (NSUInteger)code_;
}
- (NSString *)description {
return [NSString stringWithFormat:@"%@ - %@ (0x%lX)",
[self class],
[self stringValue],
(unsigned long)code_];
}
- (FourCharCode)fourCharCode {
return code_;
}
- (NSString*)stringValue {
return GTMCFAutorelease(UTCreateStringForOSType(code_));
}
- (NSNumber*)numberValue {
return [NSNumber numberWithUnsignedInt:code_];
}
@end
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