1 files changed, 141 insertions, 0 deletions
diff --git a/src/common/GraphElementData.m b/src/common/GraphElementData.m
new file mode 100644
index 0000000..02b747b
--- /dev/null
+++ b/src/common/GraphElementData.m
@@ -0,0 +1,141 @@
+//
+//  GraphElementData.m
+//  TikZiT
+//  
+//  Copyright 2010 Aleks Kissinger. All rights reserved.
+//  
+//  
+//  This file is part of TikZiT.
+//  
+//  TikZiT 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 3 of the License, or
+//  (at your option) any later version.
+//  
+//  TikZiT 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 TikZiT.  If not, see <http://www.gnu.org/licenses/>.
+//  
+
+#import "GraphElementData.h"
+#import "GraphElementProperty.h"
+
+
+@implementation GraphElementData
+
+- (id)init {
+	[super init];
+	properties = [[NSMutableArray alloc] init];
+	return self;
+}
+
+// all of the array messages delegate to 'properties'
+
+- (NSUInteger)count { return [properties count]; }
+- (id)objectAtIndex:(NSUInteger)index {
+	return [properties objectAtIndex:index];
+}
+- (void)insertObject:(id)anObject atIndex:(NSUInteger)index {
+	[properties insertObject:anObject atIndex:index];
+}
+- (void)removeObjectAtIndex:(NSUInteger)index {
+	[properties removeObjectAtIndex:index];
+}
+- (void)addObject:(id)anObject {
+	[properties addObject:anObject];
+}
+- (void)removeLastObject {
+	[properties removeLastObject];
+}
+- (void)replaceObjectAtIndex:(NSUInteger)index withObject:(id)anObject {
+	[properties replaceObjectAtIndex:index withObject:anObject];
+}
+- (NSUInteger)countByEnumeratingWithState:(NSFastEnumerationState *)state
+								  objects:(id *)stackbuf
+									count:(NSUInteger)len {
+	return [properties countByEnumeratingWithState:state objects:stackbuf count:len];
+}
+
+- (void)setProperty:(NSString*)val forKey:(NSString*)key {
+	GraphElementProperty *m = [[GraphElementProperty alloc] initWithKeyMatching:key];
+	NSInteger idx = [properties indexOfObject:m];
+	[m release];
+	
+	GraphElementProperty *p;
+	if (idx == NSNotFound) {
+		p = [[GraphElementProperty alloc] initWithPropertyValue:val forKey:key];
+		[properties addObject:p];
+		[p release];
+	} else {
+		p = [properties objectAtIndex:idx];
+		[p setValue:val];
+	}
+}
+
+- (void)unsetProperty:(NSString*)key {
+	GraphElementProperty *m = [[GraphElementProperty alloc] initWithKeyMatching:key];
+	[properties removeObject:m];
+	[m release];
+}
+
+- (NSString*)propertyForKey:(NSString*)key {
+	GraphElementProperty *m = [[GraphElementProperty alloc] initWithKeyMatching:key];
+	NSInteger idx = [properties indexOfObject:m];
+	[m release];
+	
+	if (idx == NSNotFound) {
+		return nil;
+	}else {
+		GraphElementProperty *p = [properties objectAtIndex:idx];
+		return [p value];
+	}
+}
+
+- (void)setAtom:(NSString*)atom {
+	GraphElementProperty *a = [[GraphElementProperty alloc] initWithAtomName:atom];
+	if (![properties containsObject:a]) [properties addObject:a];
+	[a release];
+}
+
+- (void)unsetAtom:(NSString*)atom {
+	GraphElementProperty *a = [[GraphElementProperty alloc] initWithAtomName:atom];
+	[properties removeObject:a];
+	[a release];
+}
+
+- (BOOL)isAtomSet:(NSString*)atom {
+	GraphElementProperty *a = [[GraphElementProperty alloc] initWithAtomName:atom];
+	BOOL set = [properties containsObject:a];
+	[a release];
+	return set;
+}
+
+- (NSString*)stringList {
+	NSString *s = [properties componentsJoinedByString:@", "];
+	return ([s isEqualToString:@""]) ? @"" : [NSString stringWithFormat:@"[%@]", s];
+}
+
+- (id)copy {
+	GraphElementData *cp = [[GraphElementData alloc] init];
+	NSEnumerator *en = [properties objectEnumerator];
+	GraphElementProperty *p, *p2;
+	while ((p = [en nextObject]) != nil) {
+        p2 = [p copy];
+        [cp addObject:p2];
+        [p2 release];
+    }
+	return cp;
+}
+
+- (void)dealloc {
+	[properties release];
+	[super dealloc];
+}
+
+@end
+
+// vi:ft=objc:ts=4:noet:sts=4:sw=4