AppTransformers.m
/* |
File: AppTransformers.m |
Abstract: Some simple transformers for the UI to use. |
Version: 1.2 |
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*/ |
#import "AppTransformers.h" |
@implementation IsRunningTransformer |
+ (Class)transformedValueClass { |
return [NSString class]; |
} |
- (id)transformedValue:(id)value { |
if (value == nil) { |
return nil; |
} |
if (![value respondsToSelector:@selector(integerValue)]) { |
[NSException raise:NSInternalInconsistencyException format:@"Value %@ does not respond to integerValue", [value class]]; |
} |
NSInteger val = [value integerValue]; |
if (val) { |
return NSLocalizedString(@"Query is alive...", @"String to be shown when the query is alive and maintaining results"); |
} else { |
return NSLocalizedString(@"Query is dead...", @"String to be shown when the query is not alive and not maintaining results"); |
} |
} |
@end |
@implementation MBTransformer |
+ (Class)transformedValueClass { |
return [NSString class]; |
} |
- (id)transformedValue:(id)value { |
if (value == nil) { |
return NSLocalizedString(@"0 Bytes", @"File size shown for 0 byte files"); |
} |
if (![value respondsToSelector:@selector(integerValue)]) { |
[NSException raise:NSInternalInconsistencyException format:@"Value %@ does not respond to integerValue", [value class]]; |
} |
NSInteger fsSize = [value integerValue]; |
// special case for small files |
if (fsSize == 0) { |
return NSLocalizedString(@"0 Bytes", @"File size shown for 0 byte files"); |
} |
const NSInteger cutOff = 900; |
if (fsSize < cutOff) { |
return [NSString stringWithFormat:NSLocalizedString(@"%ld Bytes", @"File size shown formatted as bytes"), (long)fsSize]; |
} |
double numK = (double)fsSize / 1024; |
if (numK < cutOff) { |
return [NSString stringWithFormat:NSLocalizedString(@"%.2f KB", @"File size shown formatted as kilobytes"), numK]; |
} |
double numMB = numK / 1024; |
if (numMB < cutOff) { |
return [NSString stringWithFormat:NSLocalizedString(@"%.2f MB", @"File size shown formatted as megabytes"), numMB]; |
} |
double numGB = numMB / 1024; |
return [NSString stringWithFormat:NSLocalizedString(@"%.2f GB", @"File size shown formatted as gigabytes"), numGB]; |
} |
@end |
@implementation MetadataItemIconTransformer |
+ (Class)transformedValueClass { |
return [NSImage class]; |
} |
- (id)transformedValue:(id)value { |
if (value == nil) { |
return nil; |
} |
if ([value isMemberOfClass:[NSMetadataItem class]]) { |
NSMetadataItem *item = value; |
NSString *filename = [item valueForAttribute:(id)kMDItemPath]; |
return [[NSWorkspace sharedWorkspace] iconForFile:filename]; |
} else { |
[NSException raise:NSInvalidArgumentException format:@"Expecting only an NSMetadataitem"]; |
return nil; |
} |
} |
@end |
Copyright © 2012 Apple Inc. All Rights Reserved. Terms of Use | Privacy Policy | Updated: 2012-06-05