1 files changed, 173 insertions, 0 deletions
diff --git a/src/common/Node.m b/src/common/Node.m
new file mode 100644
index 0000000..3421325
--- /dev/null
+++ b/src/common/Node.m
@@ -0,0 +1,173 @@
+//
+//  Node.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 "Node.h"
+
+
+@implementation Node
+
+- (id)initWithPoint:(NSPoint)p {
+	[super init];
+	data = [[GraphElementData alloc] init];
+	style = nil;
+	label = @"";
+	point = p;
+	//[self updateData];
+	return self;
+}
+
+- (id)init {
+	[self initWithPoint:NSMakePoint(0.0f, 0.0f)];
+	return self;
+}
+
+- (BOOL)attachStyleFromTable:(NSArray*)styles {
+	NSString *style_name = [[[data propertyForKey:@"style"] retain] autorelease];
+	
+	[self setStyle:nil];
+	
+	// 'none' is a reserved style
+	if (style_name == nil || [style_name isEqualToString:@"none"]) return YES;
+	
+	for (NodeStyle *s in styles) {
+		if ([[s name] compare:style_name]==NSOrderedSame) {
+			[self setStyle:s];
+			return YES;
+		}
+	}
+	
+	// if we didn't find a style, fill in a default one
+	[self setStyle:[NodeStyle defaultNodeStyleWithName:style_name]];
+	return NO;
+}
+
+- (void)updateData {
+	if (style == nil) {
+		[data setProperty:@"none" forKey:@"style"];
+	} else {
+		[data setProperty:[style name] forKey:@"style"];
+	}
+}
+
+- (void)setPropertiesFromNode:(Node*)nd {
+	[self setPoint:[nd point]];
+	[self setStyle:[nd style]];
+	[self setName:[nd name]];
+	[self setData:[nd data]];
+	[self setLabel:[nd label]];
+}
+
+- (id)copy {
+	Node *cp = [[Node alloc] init];
+	[cp setPropertiesFromNode:self];
+	return cp;
+}
+
++ (Node*)nodeWithPoint:(NSPoint)p {
+	return [[[Node alloc] initWithPoint:p] autorelease];
+}
+
++ (Node*)node {
+	return [[[Node alloc] init] autorelease];
+}
+
+
+// perform a lexicographic ordering (-y, x) on coordinates.
+- (NSComparisonResult)compareTo:(id)nd {
+	Node *node = (Node*)nd;
+	if (point.y > [node point].y) return NSOrderedAscending;
+	else if (point.y < [node point].y) return NSOrderedDescending;
+	else {
+		if (point.x < [node point].x) return NSOrderedAscending;
+		else if (point.x > [node point].x) return NSOrderedDescending;
+		else return NSOrderedSame;
+	}
+}
+
+
+- (NSString*)name {
+	return name;
+}
+
+- (void)setName:(NSString *)s {
+	if (name != s) {
+		[name release];
+		name = [s copy];
+	}
+}
+
+- (NSString*)label {
+	return label;
+}
+
+- (void)setLabel:(NSString *)s {
+	if (label != s) {
+		[label release];
+		label = [s copy];
+	}
+}
+
+- (GraphElementData*)data {
+	return data;
+}
+
+- (void)setData:(GraphElementData*)dt {
+	if (data != dt) {
+		[data release];
+		data = [dt copy];
+	}
+}
+
+- (NSPoint)point {
+    return point;
+}
+
+- (void)setPoint:(NSPoint)value {
+	point = value;
+}
+
+- (NodeStyle*)style {
+	return style;
+}
+
+- (void)setStyle:(NodeStyle *)st {
+	NodeStyle *oldStyle = style;
+	style = [st retain];
+	[oldStyle release];
+	[self updateData];
+}
+
+- (void)dealloc {
+	[self setName:nil];
+	[self setStyle:nil];
+	[self setData:nil];
+	[super dealloc];
+}
+
+- (id)copyWithZone:(NSZone*)z {
+	return nil;
+}
+
+@end
+
+// vi:ft=objc:ts=4:noet:sts=4:sw=4