Added formatters and NSFileHandle+CreateFile category for easy file creation when writing.

Playlist/IndexFormatter.h

@@ -0,0 +1,16 @@
+//
+//  IndexFormatter.h
+//  Cog
+//
+//  Created by Zaphod Beeblebrox on 3/13/07.
+//  Copyright 2007 __MyCompanyName__. All rights reserved.
+//
+
+#import <Cocoa/Cocoa.h>
+
+
+@interface IndexFormatter : NSObject {
+
+}
+
+@end

Playlist/IndexFormatter.m

@@ -0,0 +1,49 @@
+//
+//  IndexFormatter.m
+//  Cog
+//
+//  Created by Zaphod Beeblebrox on 3/13/07.
+//  Copyright 2007 __MyCompanyName__. All rights reserved.
+//
+
+#import "IndexFormatter.h"
+
+
+@implementation IndexFormatter
+
+- (NSString *) stringForObjectValue:(id)object
+{
+	NSString *result  = nil;
+	int value;
+
+	if(nil == object || NO == [object isKindOfClass:[NSNumber class]]) {
+		return nil;
+	}
+	
+	value = ([object intValue] + 1);
+	
+	result = [NSString stringWithFormat:@"%i", value];
+	
+	return [[result retain] autorelease];
+}
+
+- (BOOL) getObjectValue:(id *)object forString:(NSString *)string errorDescription:(NSString  **)error
+{
+	if(NULL != object) {
+		*object = [NSNumber numberWithInt:[string intValue]];
+
+		return YES;
+	}
+	
+	return NO;
+}
+
+- (NSAttributedString *) attributedStringForObjectValue:(id)object withDefaultAttributes:(NSDictionary *)attributes
+{
+	NSAttributedString		*result		= nil;
+	
+	result = [[NSAttributedString alloc] initWithString:[self stringForObjectValue:object] attributes:attributes];
+	return [result autorelease];
+}
+
+@end

Playlist/SecondsFormatter.h

@@ -0,0 +1,27 @@
+/*
+ *  $Id: SecondsFormatter.h 227 2007-01-21 06:22:13Z stephen_booth $
+ *
+ *  Copyright (C) 2006 - 2007 Stephen F. Booth <me@sbooth.org>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#import <Cocoa/Cocoa.h>
+
+@interface SecondsFormatter : NSFormatter
+{
+}
+
+@end

Playlist/SecondsFormatter.m

@@ -0,0 +1,109 @@
+/*
+ *  $Id: SecondsFormatter.m 227 2007-01-21 06:22:13Z stephen_booth $
+ *
+ *  Copyright (C) 2006 - 2007 Stephen F. Booth <me@sbooth.org>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#import "SecondsFormatter.h"
+
+@implementation SecondsFormatter
+
+- (NSString *) stringForObjectValue:(id)object
+{
+	NSString		*result			= nil;
+	unsigned		value;
+	unsigned		days			= 0;
+	unsigned		hours			= 0;
+	unsigned		minutes			= 0;
+	unsigned		seconds			= 0;
+	
+	if(nil == object || NO == [object isKindOfClass:[NSNumber class]]) {
+		return nil;
+	}
+	
+	value		= (unsigned)([object doubleValue] / 1000.0);
+	
+	seconds		= value % 60;
+	minutes		= value / 60;
+	
+	while(60 <= minutes) {
+		minutes -= 60;
+		++hours;
+	}
+	
+	while(24 <= hours) {
+		hours -= 24;
+		++days;
+	}
+
+	if(0 < days) {
+		result = [NSString stringWithFormat:@"%u:%.2u:%.2u:%.2u", days, hours, minutes, seconds];
+	}
+	else if(0 < hours) {
+		result = [NSString stringWithFormat:@"%u:%.2u:%.2u", hours, minutes, seconds];
+	}
+	else if(0 < minutes) {
+		result = [NSString stringWithFormat:@"%u:%.2u", minutes, seconds];
+	}
+	else {
+		result = [NSString stringWithFormat:@"0:%.2u", seconds];
+	}
+	
+	return [[result retain] autorelease];
+}
+
+- (BOOL) getObjectValue:(id *)object forString:(NSString *)string errorDescription:(NSString  **)error
+{
+	NSScanner		*scanner		= nil;
+	BOOL			result			= NO;
+	int				value			= 0;
+	unsigned		seconds;
+
+	scanner		= [NSScanner scannerWithString:string];
+	
+	while(NO == [scanner isAtEnd]) {
+		
+		// Grab a value
+		if([scanner scanInt:&value]) {
+			seconds		*= 60;
+			seconds		+= value;
+			result		= YES;
+		}
+		
+		// Grab the separator, if present
+		[scanner scanString:@":" intoString:NULL];
+	}
+	
+	if(result && NULL != object) {
+		*object = [NSNumber numberWithUnsignedInt:seconds];
+	}
+	else if(NULL != error) {
+		*error = @"Couldn't convert value to seconds";
+	}
+	
+	return result;
+}
+
+- (NSAttributedString *) attributedStringForObjectValue:(id)object withDefaultAttributes:(NSDictionary *)attributes
+{
+	NSAttributedString		*result		= nil;
+	
+	result = [[NSAttributedString alloc] initWithString:[self stringForObjectValue:object] attributes:attributes];
+	return [result autorelease];
+}
+
+@end

Utils/NSFileHandle+CreateFile.h

@@ -0,0 +1,16 @@
+//
+//  NSFileHandle+CreateFile.h
+//  Cog
+//
+//  Created by Zaphod Beeblebrox on 3/13/07.
+//  Copyright 2007 __MyCompanyName__. All rights reserved.
+//
+
+#import <Cocoa/Cocoa.h>
+
+
+@interface NSFileHandle (CreateFile)
+
++ (id)fileHandleForWritingAtPath:(NSString *)path createFile:(BOOL)create;
+
+@end

Utils/NSFileHandle+CreateFile.m

@@ -0,0 +1,24 @@
+//
+//  NSFileHandle+CreateFile.m
+//  Cog
+//
+//  Created by Zaphod Beeblebrox on 3/13/07.
+//  Copyright 2007 __MyCompanyName__. All rights reserved.
+//
+
+#import "NSFileHandle+CreateFile.h"
+
+
+@implementation NSFileHandle (CreateFile)
+
++ (id)fileHandleForWritingAtPath:(NSString *)path createFile:(BOOL)create
+{
+	NSFileManager *manager = [NSFileManager defaultManager];
+
+	if (![manager fileExistsAtPath:path])
+		[manager createFileAtPath:path contents:nil attributes:nil];
+	
+	return [NSFileHandle fileHandleForWritingAtPath:path];
+}
+
+@end