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/* $Id$ $Revision$ */
/* vim:set shiftwidth=4 ts=8: */
/*************************************************************************
* Copyright (c) 2011 AT&T Intellectual Property
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors: See CVS logs. Details at http://www.graphviz.org/
*************************************************************************/
#import "GVGraphDefaultAttributes.h"
#import "GVGraph.h"
@interface GVGraphDefaultAttributeKeyEnumerator : NSEnumerator
{
graph_t *_graph;
int _kind;
Agsym_t *_nextSymbol;
}
- (id)initWithGraphLoc:(graph_t *)graph prototype:(int)kind;
- (NSArray *)allObjects;
- (id)nextObject;
@end
@implementation GVGraphDefaultAttributeKeyEnumerator
- (id)initWithGraphLoc:(graph_t *)graph prototype:(int)kind;
{
if (self = [super init]) {
_kind = kind;
_graph = graph;
_nextSymbol = agnxtattr(_graph, _kind, NULL);
}
return self;
}
- (NSArray *)allObjects
{
NSMutableArray* all = [NSMutableArray array];
for (; _nextSymbol; _nextSymbol = agnxtattr(_graph, _kind, _nextSymbol)) {
char *attributeValue = _nextSymbol->defval;
if (attributeValue && *attributeValue)
[all addObject:[NSString stringWithUTF8String:attributeValue]];
}
return all;
}
- (id)nextObject
{
for (; _nextSymbol; _nextSymbol = agnxtattr(_graph, _kind, _nextSymbol)) {
char *attributeValue = _nextSymbol->defval;
if (attributeValue && *attributeValue)
return [NSString stringWithUTF8String:attributeValue];
}
return nil;
}
@end
@implementation GVGraphDefaultAttributes
- (id)initWithGraph:(GVGraph *)graph prototype:(int)kind
{
if (self = [super init]) {
_graph = graph;
_kind = kind;
}
return self;
}
- (NSUInteger)count
{
NSUInteger symbolCount = 0;
Agsym_t *nextSymbol = NULL;
for (nextSymbol = agnxtattr(_graph->_graph,_kind, nextSymbol); nextSymbol; nextSymbol = agnxtattr(_graph->_graph, _kind, nextSymbol))
if (nextSymbol->defval && *(nextSymbol->defval))
++symbolCount;
return symbolCount;
}
- (NSEnumerator *)keyEnumerator
{
return [[[GVGraphDefaultAttributeKeyEnumerator alloc] initWithGraphLoc:_graph->_graph prototype:_kind] autorelease];
}
- (id)objectForKey:(id)aKey
{
id object = nil;
Agsym_t *attributeSymbol = agattr(_graph->_graph, _kind, (char*)[aKey UTF8String], 0);
if (attributeSymbol) {
char *attributeValue = attributeSymbol->defval;
if (attributeValue && *attributeValue)
object = [NSString stringWithUTF8String:attributeValue];
}
return object;
}
- (void)setObject:(id)anObject forKey:(id)aKey
{
agattr(_graph->_graph, _kind, (char *)[aKey UTF8String], (char *)[anObject UTF8String]);
[_graph noteChanged:YES];
}
- (void)removeObjectForKey:(id)aKey
{
agattr(_graph->_graph, _kind, (char *)[aKey UTF8String], "");
[_graph noteChanged:YES];
}
@end
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