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PBGTreeNode.m
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//
// PGTreeNode.m
// Neurosis
//
// Created by Patrick B. Gibson on 03/04/08.
// Copyright 2008 __MyCompanyName__. All rights reserved.
//
#import "PBGTreeNode.h"
#import "NSArray_Extensions.h"
@implementation PBGTreeNode
- (id)initWithNodeType:(PBGTreeNodeType)type nodeTitle:(NSString *)title andNodeIcon:(NSImage *)icon;
{
if (self = [super init])
{
nodeTitle = [title retain];
nodeType = type;
if (icon) { nodeIcon = [icon retain]; }
isLeaf = YES;
index = -1;
[self setChildren:[NSArray array]];
}
return self;
}
- (id)initWithNodeType:(PBGTreeNodeType)type nodeTitle:(NSString *)title andNodeIcon:(NSImage *)icon andIndex:(int)i;
{
if (self = [super init])
{
nodeTitle = [title retain];
nodeType = type;
if (icon) { nodeIcon = [icon retain]; }
isLeaf = YES;
index = i;
[self setChildren:[NSArray array]];
}
return self;
}
- (void)setNodeTitle:(NSString *)newNodeTitle
{
[newNodeTitle retain];
[nodeTitle release];
nodeTitle = newNodeTitle;
}
- (NSString *)nodeTitle
{
return nodeTitle;
}
- (void)setNodeIcon:(NSImage *)icon
{
if (!nodeIcon || ![nodeIcon isEqual:icon])
{
[nodeIcon release];
nodeIcon = [icon retain];
}
}
- (NSImage *)nodeIcon
{
return nodeIcon;
}
- (void)setNodeType:(PBGTreeNodeType)newNodeType
{
nodeType = newNodeType;
}
- (PBGTreeNodeType)nodeType
{
return nodeType;
}
- (void)setLesson:(PBGLesson *)newLesson
{
[newLesson retain];
if (lesson) { [lesson release]; }
lesson = newLesson;
}
- (PBGLesson *)lesson
{
return lesson;
}
- (void)setChildren:(NSArray *)newChildren
{
if (children != newChildren)
{
[children autorelease];
children = [[NSMutableArray alloc] initWithArray:newChildren];
if ([children count] > 0)
isLeaf = NO;
}
}
- (NSMutableArray *)children
{
return children;
}
- (NSComparisonResult)compare:(PBGTreeNode *)aNode
{
return [[[self nodeTitle] lowercaseString] compare:[[aNode nodeTitle] lowercaseString]];
}
- (void)addChild:(PBGTreeNode *)n
{
[children addObject:n];
isLeaf = NO;
}
- (PBGTreeNode *)childAtIndex:(int)i
{
return [children objectAtIndex:i];
}
#pragma mark - Archiving And Copying Support
/*
// -------------------------------------------------------------------------------
// mutableKeys:
//
// Override this method to maintain support for archiving and copying.
// -------------------------------------------------------------------------------
- (NSArray*)mutableKeys
{
return [NSArray arrayWithObjects:
@"nodeTitle",
@"children",
@"nodeIcon",
@"nodeType"
nil];
}
- (id)initWithDictionary:(NSDictionary*)dictionary
{
self = [self init];
NSEnumerator *keysToDecode = [[self mutableKeys] objectEnumerator];
NSString *key;
while (key = [keysToDecode nextObject])
{
if ([key isEqualToString:@"children"])
{
if ([[dictionary objectForKey:@"isLeaf"] boolValue])
[self setChildren:[NSArray arrayWithObject:self]];
else
{
NSArray *dictChildren = [dictionary objectForKey:key];
NSMutableArray *newChildren = [NSMutableArray array];
for (id node in dictChildren)
{
id newNode = [[[self class] alloc] initWithDictionary:node];
[newChildren addObject:newNode];
[newNode release];
}
[self setChildren:newChildren];
}
}
else
[self setValue:[dictionary objectForKey:key] forKey:key];
}
return self;
}
- (NSDictionary*)dictionaryRepresentation
{
NSMutableDictionary *dictionary = [NSMutableDictionary dictionary];
NSEnumerator *keysToCode = [[self mutableKeys] objectEnumerator];
NSString *key;
while (key = [keysToCode nextObject])
{
// convert all children to dictionaries
if ([key isEqualToString:@"children"])
{
if (!isLeaf)
{
NSMutableArray *dictChildren = [NSMutableArray array];
for (id node in children)
{
[dictChildren addObject:[node dictionaryRepresentation]];
}
[dictionary setObject:dictChildren forKey:key];
}
}
else if ([self valueForKey:key])
{
[dictionary setObject:[self valueForKey:key] forKey:key];
}
}
return dictionary;
}
- (id)initWithCoder:(NSCoder*)coder
{
self = [self init];
NSEnumerator *keysToDecode = [[self mutableKeys] objectEnumerator];
NSString *key;
while (key = [keysToDecode nextObject])
[self setValue:[coder decodeObjectForKey:key] forKey:key];
return self;
}
- (void)encodeWithCoder:(NSCoder*)coder
{
NSEnumerator *keysToCode = [[self mutableKeys] objectEnumerator];
NSString *key;
while (key = [keysToCode nextObject])
[coder encodeObject:[self valueForKey:key] forKey:key];
}
- (id)copyWithZone:(NSZone*)zone
{
id newNode = [[[self class] allocWithZone:zone] init];
NSEnumerator *keysToSet = [[self mutableKeys] objectEnumerator];
NSString *key;
while (key = [keysToSet nextObject])
[newNode setValue:[self valueForKey:key] forKey:key];
return newNode;
}
// -------------------------------------------------------------------------------
// setNilValueForKey:key
//
// Override this for any non-object values
// -------------------------------------------------------------------------------
- (void)setNilValueForKey:(NSString*)key
{
if ([key isEqualToString:@"isLeaf"])
isLeaf = NO;
else
[super setNilValueForKey:key];
}
*/
- (NSArray *)expectedOutputsArray
{
NSMutableArray *array = [[NSMutableArray alloc] initWithCapacity:2];
int counter = (index - 1);
do {
[array addObject:[NSNumber numberWithInt:(counter % 2)]];
counter = counter / 2;
} while (counter > 0);
// Make sure we have a preceeding 0
if ([array count] < 2) {
[array addObject:[NSNumber numberWithInt:0]];
[array exchangeObjectAtIndex:0 withObjectAtIndex:1];
}
//NSLog(@"Expected outputs array for %@: %@", self, array);
return array;
}
- (BOOL)isLeaf
{
return isLeaf;
}
- (void)dealloc
{
if (lesson) { [lesson release]; }
[nodeTitle release];
[nodeIcon release];
[children release];
[super dealloc];
}
@end