/*
* Copyright (c) 2002 Apple Computer, Inc. All rights reserved.
*
* @APPLE_LICENSE_HEADER_START@
*
* This file contains Original Code and/or Modifications of Original Code
* as defined in and that are subject to the Apple Public Source License
* Version 2.0 (the 'License'). You may not use this file except in
* compliance with the License. Please obtain a copy of the License at
* http://www.opensource.apple.com/apsl/ and read it before using this
* file.
*
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
* Please see the License for the specific language governing rights and
* limitations under the License.
*
* @APPLE_LICENSE_HEADER_END@
*/
#import "Node.h"
@implementation Node
- (id)init
{
self = [super init];
children = [[NSMutableArray alloc] init];
itemName = [[NSString alloc] init];
itemValue = [[NSString alloc] init];
return self;
}
- (void)setItemName:(NSString *)s
{
[itemName release];
if (s==nil)
s = @"";
itemName = [[NSString alloc] initWithString:s];
}
- (NSString *)itemName
{
return itemName;
}
- (void)setItemValue:(NSString *)s
{
[itemValue release];
if (s==nil)
s = @"";
itemValue = [[NSString alloc] initWithString:s];
}
- (NSString *)itemValue
{
return itemValue;
}
- (void)addChild:(Node *)n
{
[children addObject:n];
}
- (Node *)childAtIndex:(UInt32)i
{
if (i >= [children count]) {
// uh oh, the index was out of bounds. this happens
// if the devices are being updated while the last refresh
// is not completed yet.
// in this case, we return the last object of the array
// then send a notification so the mainController knows that
// it needs to reload the data one more time
[[NSNotificationCenter defaultCenter] postNotificationName:@"com.apple.USBProber.general" object:@"DataNeedsReload"];
return [children objectAtIndex:[children count]-1];
}
return [children objectAtIndex:i];
}
- (int)childrenCount
{
return [children count];
}
- (BOOL)expandable
{
return ([children count] > 0);
}
- (NSString *)stringRepresentationWithInitialIndent:(int)startingLevel recurse:(BOOL)recurse
{
int i;
NSMutableString *finalText = [[NSMutableString alloc] init];
for (i=0; i < [self childrenCount]; i++) {
int counter;
for (counter=0; counter < startingLevel; counter++)
[finalText appendString:@" "];
if ([[self childAtIndex:i] itemName] == NULL)
[finalText appendString:[NSString stringWithFormat:@" else
[finalText appendString:[NSString stringWithFormat:@" if (recurse && [[self childAtIndex:i] expandable]) {
[finalText appendString:[[self childAtIndex:i] stringRepresentationWithInitialIndent:startingLevel+1 recurse:YES]];
}
}
return finalText;
}
- (void)clearNode
{
[itemName release];
[itemValue release];
[children release];
itemName = [[NSString alloc] init];
itemValue = [[NSString alloc] init];
children = [[NSMutableArray alloc] init];
}
- (void)dealloc
{
[itemName release];
[itemValue release];
[children release];
[super dealloc];
}
@end