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-rw-r--r--src/common/Graph.m599
1 files changed, 0 insertions, 599 deletions
diff --git a/src/common/Graph.m b/src/common/Graph.m
deleted file mode 100644
index 62774f5..0000000
--- a/src/common/Graph.m
+++ /dev/null
@@ -1,599 +0,0 @@
-//
-// Graph.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 "Graph.h"
-#import "BasicMapTable.h"
-
-@implementation Graph
-
-- (Graph*)init {
- [super init];
- data = [[GraphElementData alloc] init];
- boundingBox = NSMakeRect(0, 0, 0, 0);
- graphLock = [[NSRecursiveLock alloc] init];
- [graphLock lock];
- nodes = [[NSMutableSet alloc] initWithCapacity:10];
- edges = [[NSMutableSet alloc] initWithCapacity:10];
- inEdges = nil;
- outEdges = nil;
- dirty = YES;
- [graphLock unlock];
- return self;
-}
-
-- (void)sync {
- [graphLock lock];
- if (dirty) {
- [nodesCache release];
- nodesCache = [nodes copy];
- [edgesCache release];
- edgesCache = [edges copy];
-
-
- [inEdges release];
- [outEdges release];
- inEdges = [[BasicMapTable alloc] init];
- outEdges = [[BasicMapTable alloc] init];
-
- NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
-
- for (Edge *e in edges) {
- NSMutableSet *ie = [inEdges objectForKey:[e target]];
- NSMutableSet *oe = [outEdges objectForKey:[e source]];
-
- if (ie == nil) {
- ie = [NSMutableSet setWithCapacity:4];
- [inEdges setObject:ie forKey:[e target]];
- }
-
- if (oe == nil) {
- oe = [NSMutableSet setWithCapacity:4];
- [outEdges setObject:oe forKey:[e source]];
- }
-
- [ie addObject:e];
- [oe addObject:e];
- }
-
- [pool drain];
-
-
- dirty = NO;
- }
- [graphLock unlock];
-}
-
-- (NSSet*)nodes {
- [self sync];
- return nodesCache;
-}
-
-- (NSSet*)edges {
- [self sync];
- return edgesCache;
-}
-
-- (NSRect)bounds {
- [graphLock lock];
- NSRect b = [Graph boundsForNodeSet:nodes];
- [graphLock unlock];
- return b;
-}
-
-- (GraphElementData*)data { return data; }
-- (void)setData:(GraphElementData *)dt {
- if (data != dt) {
- [data release];
- data = [dt copy];
- }
-}
-
-- (NSRect)boundingBox { return boundingBox; }
-- (void)setBoundingBox:(NSRect)r {
- boundingBox = r;
-}
-
-- (BOOL)hasBoundingBox {
- return !(
- boundingBox.size.width == 0 &&
- boundingBox.size.height == 0
- );
-}
-
-- (NSSet*)inEdgesForNode:(Node*)nd {
- return [[[inEdges objectForKey:nd] retain] autorelease];
-}
-
-- (NSSet*)outEdgesForNode:(Node*)nd {
- return [[[outEdges objectForKey:nd] retain] autorelease];
-}
-
-- (NSSet*)incidentEdgesForNodes:(NSSet*)nds {
- [self sync];
-
- NSMutableSet *mset = [NSMutableSet setWithCapacity:10];
- for (Node *n in nds) {
- [mset unionSet:[self inEdgesForNode:n]];
- [mset unionSet:[self outEdgesForNode:n]];
- }
-
- return mset;
-}
-
-- (void)applyTransformer:(Transformer *)t {
- [graphLock lock];
- for (Node *n in nodes) {
- [n setPoint:[t toScreen:[n point]]];
- }
- [graphLock unlock];
-}
-
-
-- (GraphChange*)addNode:(Node *)node{
- [graphLock lock];
- [nodes addObject:node];
- dirty = YES;
- [graphLock unlock];
-
- return [GraphChange graphAdditionWithNodes:[NSSet setWithObject:node]
- edges:[NSSet set]];
-}
-
-- (GraphChange*)removeNode:(Node*)node {
- [graphLock lock];
-
- NSMutableSet *affectedEdges = [NSMutableSet set];
- for (Edge *e in edges) {
- if ([e source] == node || [e target] == node) {
- [affectedEdges addObject:e];
- }
- }
-
- for (Edge *e in affectedEdges) {
- [edges removeObject:e];
- }
-
- [nodes removeObject:node];
-
- dirty = YES;
-
- [graphLock unlock];
-
- return [GraphChange graphDeletionWithNodes:[NSSet setWithObject:node]
- edges:affectedEdges];
-}
-
-- (GraphChange*)removeNodes:(NSSet *)nds {
- [graphLock lock];
-
- Node *n;
- Edge *e;
-
- NSMutableSet *affectedEdges = [NSMutableSet set];
- NSEnumerator *en = [edges objectEnumerator];
- while ((e = [en nextObject])) {
- if ([nds containsObject:[e source]] || [nds containsObject:[e target]]) {
- [affectedEdges addObject:e];
- }
- }
-
- en = [affectedEdges objectEnumerator];
- while ((e = [en nextObject])) [edges removeObject:e];
-
- en = [nds objectEnumerator];
- while ((n = [en nextObject])) [nodes removeObject:n];
-
- dirty = YES;
- [graphLock unlock];
-
- return [GraphChange graphDeletionWithNodes:nds edges:affectedEdges];
-}
-
-- (GraphChange*)addEdge:(Edge *)edge {
- [graphLock lock];
- [edges addObject:edge];
- dirty = YES;
- [graphLock unlock];
- return [GraphChange graphAdditionWithNodes:[NSSet set]
- edges:[NSSet setWithObject:edge]];
-}
-
-- (GraphChange*)removeEdge:(Edge *)edge {
- [graphLock lock];
- [edges removeObject:edge];
- dirty = YES;
- [graphLock unlock];
- return [GraphChange graphDeletionWithNodes:[NSSet set]
- edges:[NSSet setWithObject:edge]];
-}
-
-- (GraphChange*)removeEdges:(NSSet *)es {
- [graphLock lock];
-
- NSEnumerator *en = [es objectEnumerator];
- Edge *e;
- while ((e = [en nextObject])) {
- [edges removeObject:e];
- }
- dirty = YES;
- [graphLock unlock];
- return [GraphChange graphDeletionWithNodes:[NSSet set] edges:es];
-}
-
-- (GraphChange*)addEdgeFrom:(Node *)source to:(Node *)target {
- return [self addEdge:[Edge edgeWithSource:source andTarget:target]];
-}
-
-- (GraphChange*)shiftNodes:(NSSet*)ns byPoint:(NSPoint)p {
- NSEnumerator *en = [ns objectEnumerator];
- Node *n;
- NSPoint newLoc;
- while ((n = [en nextObject])) {
- newLoc = NSMakePoint([n point].x + p.x, [n point].y + p.y);
- [n setPoint:newLoc];
- }
- return [GraphChange shiftNodes:ns byPoint:p];
-}
-
-- (GraphChange*)insertGraph:(Graph*)g {
- [graphLock lock];
- NSEnumerator *en;
- Node *n;
- Edge *e;
-
- en = [[g nodes] objectEnumerator];
- while ((n = [en nextObject])) {
- [nodes addObject:n];
- }
-
- en = [[g edges] objectEnumerator];
- while ((e = [en nextObject])) {
- [edges addObject:e];
- }
-
- dirty = YES;
-
- [graphLock unlock];
-
- return [GraphChange graphAdditionWithNodes:[g nodes] edges:[g edges]];
-}
-
-- (void)flipNodes:(NSSet*)nds horizontal:(BOOL)horiz {
- [graphLock lock];
-
- NSRect bds = [Graph boundsForNodeSet:nds];
- float ctr;
- if (horiz) ctr = bds.origin.x + (bds.size.width/2);
- else ctr = bds.origin.y + (bds.size.height/2);
-
- Node *n;
- NSPoint p;
- NSEnumerator *en = [nds objectEnumerator];
- while ((n = [en nextObject])) {
- p = [n point];
- if (horiz) p.x = 2 * ctr - p.x;
- else p.y = 2 * ctr - p.y;
- [n setPoint:p];
- }
-
- Edge *e;
- en = [edges objectEnumerator];
- while ((e = [en nextObject])) {
- if ([nds containsObject:[e source]] &&
- [nds containsObject:[e target]])
- {
- if ([e bendMode] == EdgeBendModeInOut) {
- if (horiz) {
- if ([e inAngle] < 0) [e setInAngle:(-180 - [e inAngle])];
- else [e setInAngle:180 - [e inAngle]];
-
- if ([e outAngle] < 0) [e setOutAngle:(-180 - [e outAngle])];
- else [e setOutAngle:180 - [e outAngle]];
- } else {
- [e setInAngle:-[e inAngle]];
- [e setOutAngle:-[e outAngle]];
- }
- } else {
- [e setBend:-[e bend]];
- }
- }
- }
-
- [graphLock unlock];
-}
-
-- (GraphChange*)flipHorizontalNodes:(NSSet*)nds {
- [self flipNodes:nds horizontal:YES];
- return [GraphChange flipNodes:nds horizontal:YES];
-}
-
-- (GraphChange*)flipVerticalNodes:(NSSet*)nds {
- [self flipNodes:nds horizontal:NO];
- return [GraphChange flipNodes:nds horizontal:NO];
-}
-
-- (Graph*)copyOfSubgraphWithNodes:(NSSet*)nds {
- [graphLock lock];
-
- BasicMapTable *newNds = [Graph nodeTableForNodes:nds];
- Graph* newGraph = [[Graph graph] retain];
-
- NSEnumerator *en = [newNds objectEnumerator];
- Node *nd;
- while ((nd = [en nextObject])) {
- [newGraph addNode:nd];
- }
-
- en = [edges objectEnumerator];
- Edge *e;
- while ((e = [en nextObject])) {
- if ([nds containsObject:[e source]] && [nds containsObject:[e target]]) {
- Edge *e1 = [e copy];
- [e1 setSource:[newNds objectForKey:[e source]]];
- [e1 setTarget:[newNds objectForKey:[e target]]];
- [newGraph addEdge:e1];
- [e1 release]; // e1 belongs to newGraph
- }
- }
-
- [graphLock unlock];
-
- return newGraph;
-}
-
-- (NSSet*)pathCover {
- [self sync];
-
- NSMutableSet *remainingEdges = [edges mutableCopy];
- NSMutableSet *cover = [NSMutableSet set];
-
- NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
-
- while ([remainingEdges count] != 0) {
- NSMutableArray *path = [[NSMutableArray alloc] init];
- NSSet *succs;
- Edge *succ;
- NSEnumerator *en;
-
- Edge *e = [remainingEdges anyObject];
-
- while (e!=nil) {
- [path addObject:e];
- [remainingEdges removeObject:e];
-
- succs = [self outEdgesForNode:[e target]];
- en = [succs objectEnumerator];
- e = nil;
-
- while ((succ = [en nextObject])) {
- if ([remainingEdges containsObject:succ]) e = succ;
- }
- }
-
- [cover addObject:path];
- [path release];
- }
-
- [pool drain];
- [remainingEdges release];
- return cover;
-}
-
-- (void)applyGraphChange:(GraphChange*)ch {
- [graphLock lock];
- Node *n;
- Edge *e;
- NSEnumerator *en;
- switch ([ch changeType]) {
- case GraphAddition:
- en = [[ch affectedNodes] objectEnumerator];
- while ((n = [en nextObject])) [nodes addObject:n];
-
- en = [[ch affectedEdges] objectEnumerator];
- while ((e = [en nextObject])) [edges addObject:e];
-
- break;
- case GraphDeletion:
- en = [[ch affectedEdges] objectEnumerator];
- while ((e = [en nextObject])) [edges removeObject:e];
-
- en = [[ch affectedNodes] objectEnumerator];
- while ((n = [en nextObject])) [nodes removeObject:n];
-
- break;
- case NodePropertyChange:
- [[ch nodeRef] setPropertiesFromNode:[ch nwNode]];
- break;
- case NodesPropertyChange:
- en = [[ch nwNodeTable] keyEnumerator];
- Node *key;
- while ((key = [en nextObject])) {
- [key setPropertiesFromNode:[[ch nwNodeTable] objectForKey:key]];
- }
- break;
- case EdgePropertyChange:
- [[ch edgeRef] setPropertiesFromEdge:[ch nwEdge]];
- break;
- case NodesShift:
- en = [[ch affectedNodes] objectEnumerator];
- NSPoint newLoc;
- while ((n = [en nextObject])) {
- newLoc = NSMakePoint([n point].x + [ch shiftPoint].x,
- [n point].y + [ch shiftPoint].y);
- [n setPoint:newLoc];
- }
- break;
- case NodesFlip:
- [self flipNodes:[ch affectedNodes] horizontal:[ch horizontal]];
- break;
- case BoundingBoxChange:
- [self setBoundingBox:[ch nwBoundingBox]];
- break;
- case GraphPropertyChange:
- [self setData:[ch nwGraphData]];
- break;
- }
-
- dirty = YES;
- [graphLock unlock];
-}
-
-//- (void)undoGraphChange:(GraphChange*)ch {
-// [self applyGraphChange:[GraphChange inverseGraphChange:ch]];
-//}
-
-- (NSString*)tikz {
- [graphLock lock];
-
- NSMutableString *code = [NSMutableString
- stringWithFormat:@"\\begin{tikzpicture}%@\n",
- [[self data] stringList]];
-
- if ([self hasBoundingBox]) {
- [code appendFormat:@"\t\\path [use as bounding box] (%@,%@) rectangle (%@,%@);\n",
- [NSNumber numberWithFloat:boundingBox.origin.x],
- [NSNumber numberWithFloat:boundingBox.origin.y],
- [NSNumber numberWithFloat:boundingBox.origin.x + boundingBox.size.width],
- [NSNumber numberWithFloat:boundingBox.origin.y + boundingBox.size.height]];
- }
-
- NSArray *sortedNodeList = [[nodes allObjects]
- sortedArrayUsingSelector:@selector(compareTo:)];
- //NSMutableDictionary *nodeNames = [NSMutableDictionary dictionary];
-
- if ([nodes count] > 0) [code appendFormat:@"\t\\begin{pgfonlayer}{nodelayer}\n"];
-
- int i;
- for (i = 0; i < [sortedNodeList count]; ++i) {
- Node *n = [sortedNodeList objectAtIndex:i];
- [n updateData];
- [n setName:[NSString stringWithFormat:@"%d", i]];
- [code appendFormat:@"\t\t\\node %@ (%d) at (%@, %@) {%@};\n",
- [[n data] stringList],
- i,
- [NSNumber numberWithFloat:[n point].x],
- [NSNumber numberWithFloat:[n point].y],
- [n label]
- ];
- }
-
- if ([nodes count] > 0) [code appendFormat:@"\t\\end{pgfonlayer}\n"];
- if ([edges count] > 0) [code appendFormat:@"\t\\begin{pgfonlayer}{edgelayer}\n"];
-
- NSString *nodeStr;
- for (Edge *e in edges) {
- [e updateData];
-
- if ([e hasEdgeNode]) {
- nodeStr = [NSString stringWithFormat:@"node%@{%@} ",
- [[[e edgeNode] data] stringList],
- [[e edgeNode] label]
- ];
- } else {
- nodeStr = @"";
- }
-
- NSString *edata = [[e data] stringList];
-
- [code appendFormat:@"\t\t\\draw%@ (%@%@) to %@(%@%@);\n",
- ([edata isEqual:@""]) ? @"" : [NSString stringWithFormat:@" %@", edata],
- [[e source] name],
- ([[e source] style] == nil) ? @".center" : @"",
- nodeStr,
- ([e source] == [e target]) ? @"" : [[e target] name],
- ([e source] != [e target] && [[e target] style] == nil) ? @".center" : @""
- ];
- }
-
- if ([edges count] > 0) [code appendFormat:@"\t\\end{pgfonlayer}\n"];
-
- [code appendString:@"\\end{tikzpicture}"];
-
- [graphLock unlock];
-
- return code;
-}
-
-- (void)dealloc {
- [graphLock lock];
- [nodes release];
- [edges release];
- [nodesCache release];
- [edgesCache release];
- [data release];
- [inEdges release];
- [outEdges release];
- [graphLock unlock];
- [graphLock release];
-
- [super dealloc];
-}
-
-+ (Graph*)graph {
- return [[[self alloc] init] autorelease];
-}
-
-+ (BasicMapTable*)nodeTableForNodes:(NSSet*)nds {
- BasicMapTable *tab = [BasicMapTable mapTable];
- for (Node *n in nds) {
- Node *ncopy = [n copy];
- [tab setObject:ncopy forKey:n];
- [ncopy release]; // tab should still retain ncopy.
- }
- return tab;
-}
-
-+ (BasicMapTable*)edgeTableForEdges:(NSSet*)es {
- BasicMapTable *tab = [BasicMapTable mapTable];
- for (Edge *e in es) {
- Edge *ecopy = [e copy];
- [tab setObject:ecopy forKey:e];
- [ecopy release]; // tab should still retain ecopy.
- }
- return tab;
-}
-
-+ (NSRect)boundsForNodeSet:(NSSet*)nds {
- NSPoint tl, br;
- Node *n;
- NSPoint p;
- NSEnumerator *en = [nds objectEnumerator];
- if ((n = [en nextObject])==nil) {
- return NSMakeRect(0, 0, 0, 0);
- }
- p = [n point];
- tl = p;
- br = p;
- while ((n = [en nextObject])) {
- p = [n point];
- if (p.x < tl.x) tl.x = p.x;
- if (p.y > tl.y) tl.y = p.y;
- if (p.x > br.x) br.x = p.x;
- if (p.y < br.y) br.y = p.y;
- }
- return NSRectAroundPoints(tl, br);
-}
-
-@end
-
-// vi:ft=objc:ts=4:noet:sts=4:sw=4
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