ample/Ample/Core Data/Bookmark+CoreDataClass.m
Kelvin Sherlock 0616991a1b - Move bookmarks and disk images to core data
- bookmark edit window
- rom window now shows machine description, tooltip is name
- fix split floppy logic to work with a2superdrive
- fix software list loading from default
- mame 241 machine updates
2022-02-23 20:59:05 -05:00

176 lines
5.0 KiB
Objective-C

//
// Bookmark+CoreDataClass.m
// Ample
//
// Created by Kelvin Sherlock on 2/6/2022.
// Copyright © 2022 Kelvin Sherlock. All rights reserved.
//
//
#import "Bookmark+CoreDataClass.h"
@implementation Bookmark
/* extract the number from a trailing " (%d)" */
static int extract_number(NSString *s, NSInteger offset) {
unichar buffer[32];
NSInteger len = [s length] - offset;
unichar c;
int i;
int n = 0;
if (len < 4) return -1; /* " (1)"*/
if (len > 6) return -1; /* " (999)" */
NSRange r = NSMakeRange(offset, len);
[s getCharacters: buffer range: r];
buffer[len] = 0;
i = 0;
if (buffer[i++] != ' ') return -1;
if (buffer[i++] != '(') return -1;
c = buffer[i++];
if (c < '1' || c > '9') return -1;
n = c - '0';
for (;;) {
c = buffer[i];
if (c < '0' || c > '9') break;
n = n * 10 + (c - '0');
++i;
}
if (buffer[i++] != ')') return -1;
if (buffer[i++] != 0) return -1;
return n;
}
+(NSString *)uniqueName: (NSString *)name inContext: (NSManagedObjectContext *)context {
NSInteger length = [name length];
NSError *error = nil;
NSPredicate *p = [NSPredicate predicateWithFormat: @"name BEGINSWITH %@", name];
NSFetchRequest *req = [NSFetchRequest fetchRequestWithEntityName: @"Bookmark"];
[req setPredicate: p];
NSArray *array = [context executeFetchRequest: req error: &error];
if (![array count]) return name;
uint64_t bits = 1; /* mark 0 as unavailable */
NSInteger max = 0;
BOOL exact = NO;
for (Bookmark *b in array) {
NSString *s = [b name];
if ([name isEqualToString: s]) {
exact = YES;
continue;
}
int n = extract_number(s, length);
if (n < 1) continue;
if (n > max) max = n;
if (n < 64)
bits |= (1 << n);
}
if (!exact) return name;
if (bits == (uint64_t)-1) {
if (max == 999) return nil;
return [name stringByAppendingFormat: @" (%u)", (int)(max + 1)];
}
#if 1
int ix = 0;
while (bits) {
++ix;
bits >>= 1;
}
#else
// this doesn't work correctly.
int ix = __builtin_ffsll(~bits);
#endif
return [name stringByAppendingFormat: @" (%u)", ix];
}
-(void)setDictionary:(NSDictionary *)dictionary {
NSData *data;
NSError *error = nil;
data = [NSPropertyListSerialization dataWithPropertyList: dictionary
format: NSPropertyListBinaryFormat_v1_0
options: 0
error: &error];
[self setData: data];
}
-(NSDictionary *)dictionary {
// NSDictionary *dict;
NSData *data = [self data];
NSError *error = nil;
return [NSPropertyListSerialization propertyListWithData: data
options: 0
format: nil
error: &error];
}
- (NSError *)errorFromOriginalError:(NSError *)originalError error:(NSError*)secondError
{
NSMutableDictionary *userInfo = [NSMutableDictionary dictionary];
NSMutableArray *errors = [NSMutableArray arrayWithObject:secondError];
if ([originalError code] == NSValidationMultipleErrorsError) {
[userInfo addEntriesFromDictionary:[originalError userInfo]];
[errors addObjectsFromArray:[userInfo objectForKey:NSDetailedErrorsKey]];
} else {
[errors addObject:originalError];
}
[userInfo setObject:errors forKey:NSDetailedErrorsKey];
return [NSError errorWithDomain:NSCocoaErrorDomain code:NSValidationMultipleErrorsError userInfo:userInfo];
}
- (BOOL)validateName:(id*)ioValue error:(NSError**)outError {
if (!ioValue || !*ioValue) return YES;
NSString *name = *ioValue;
NSFetchRequest *frq = [NSFetchRequest fetchRequestWithEntityName: @"Bookmark"];
NSPredicate *p = [NSPredicate predicateWithFormat: @"name = %@", name];
[frq setPredicate: p];
NSArray * arr = [[self managedObjectContext] executeFetchRequest: frq error: nil];
BOOL dupe = NO;
for (Bookmark *b in arr) {
if (b == self) continue;
dupe = YES;
break;
}
if (dupe && outError) {
NSDictionary *dict = @{ NSLocalizedFailureReasonErrorKey: @"duplicate name",
NSLocalizedDescriptionKey: @"duplicate name",
NSValidationKeyErrorKey: @"name",
NSValidationValueErrorKey: name,
NSValidationObjectErrorKey: self
};
NSError *e = [NSError errorWithDomain: @"Ample" code: 1 userInfo: dict];
if (*outError) {
*outError = [self errorFromOriginalError: *outError error: e];
} else {
*outError = e;
}
}
return !dupe;
}
@end