**********************************************************/
#import "GVDocument.h"
+#import "GVGraph.h"
#import "GVWindowController.h"
@implementation GVDocument
@synthesize graph = _graph;
-+ (void)initialize
-{
- aginit();
-}
-
- (id)init
{
if (self = [super init]) {
- _graph = NULL;
+ _graph = nil;
}
return self;
}
- (BOOL)readFromURL:(NSURL *)absoluteURL ofType:(NSString *)typeName error:(NSError **)outError
{
- if ([absoluteURL isFileURL]) {
- /* open a FILE* on the file URL */
- FILE *file = fopen([[absoluteURL path] fileSystemRepresentation], "r");
- if (!file) {
- if (outError)
- *outError = [NSError errorWithDomain:NSPOSIXErrorDomain code:errno userInfo:nil];
- return NO;
- }
-
- if (_graph)
- agclose(_graph);
- _graph = agread(file);
- fclose(file);
-
- return YES;
- }
- else {
- /* read the URL into memory */
- NSMutableData *memory = [NSMutableData dataWithContentsOfURL:absoluteURL options:0 error:outError];
- if (!memory)
- return NO;
-
- /* null terminate the data */
- char nullByte = '\0';
- [memory appendBytes:&nullByte length:1];
-
- if (_graph)
- agclose(_graph);
- _graph = agmemread((char*)[memory bytes]);
-
- return YES;
- }
+ [_graph release];
+ _graph = [[GVGraph alloc] initWithURL:absoluteURL error:outError];
+ [_graph.arguments setValue:@"dot" forKey:@"layout"];
+
+ return _graph != nil;
}
- (BOOL)writeToURL:(NSURL *)absoluteURL ofType:(NSString *)typeName error:(NSError **)outError
{
- if ([absoluteURL isFileURL]) {
- /* open a FILE* on the file URL */
- FILE *file = fopen([[absoluteURL path] fileSystemRepresentation], "w");
- if (!file) {
- if (outError)
- *outError = [NSError errorWithDomain:NSPOSIXErrorDomain code:errno userInfo:nil];
- return NO;
- }
-
- /* write it out */
- if (agwrite(_graph, file) != 0) {
- if (outError)
- *outError = [NSError errorWithDomain:NSPOSIXErrorDomain code:errno userInfo:nil];
- return NO;
- }
-
- fclose(file);
- return YES;
- }
- else
- /* can't write out to non-file URL */
- return NO;
+ return [_graph writeToURL:absoluteURL error:outError];
}
- (void)makeWindowControllers
{
- [self addWindowController: [[[GVWindowController alloc] initWithWindowNibName: @"Document"] autorelease]];
+ [self addWindowController: [[[GVWindowController alloc] init] autorelease]];
}
- (void)dealloc
{
- if (_graph)
- agclose(_graph);
+ [_graph release];
[super dealloc];
}
--- /dev/null
+/* $Id$ $Revision$ */
+/* vim:set shiftwidth=4 ts=8: */
+
+/**********************************************************
+* This software is part of the graphviz package *
+* http://www.graphviz.org/ *
+* *
+* Copyright (c) 1994-2008 AT&T Corp. *
+* and is licensed under the *
+* Common Public License, Version 1.0 *
+* by AT&T Corp. *
+* *
+* Information and Software Systems Research *
+* AT&T Research, Florham Park NJ *
+**********************************************************/
+
+#import <Foundation/Foundation.h>
+
+#include <graphviz/gvc.h>
+
+@class GVGraphArguments;
+@class GVGraphDefaultAttributes;
+
+@interface GVGraph : NSObject
+{
+ graph_t *_graph;
+ BOOL _freeLastLayout;
+
+ GVGraphArguments *_arguments;
+ GVGraphDefaultAttributes *_graphAttributes;
+ GVGraphDefaultAttributes *_defaultNodeAttributes;
+ GVGraphDefaultAttributes *_defaultEdgeAttributes;
+}
+
+@property(readonly) graph_t *graph;
+@property(readonly) GVGraphArguments *arguments;
+@property(readonly) GVGraphDefaultAttributes *graphAttributes;
+@property(readonly) GVGraphDefaultAttributes *defaultNodeAttributes;
+@property(readonly) GVGraphDefaultAttributes *defaultEdgeAttributes;
+
++ (void)initialize;
+
+- (id)initWithURL:(NSURL*)URL error:(NSError**)outError;
+
+- (NSData*)renderWithFormat:(NSString*)format;
+- (void)renderWithFormat:(NSString*)format toURL:(NSURL*)URL;
+- (void)noteChanged:(BOOL)relayout;
+
+- (BOOL)writeToURL:(NSURL*)URL error:(NSError**)outError;
+
+- (void)dealloc;
+
+@end
--- /dev/null
+/* $Id$ $Revision$ */
+/* vim:set shiftwidth=4 ts=8: */
+
+/**********************************************************
+* This software is part of the graphviz package *
+* http://www.graphviz.org/ *
+* *
+* Copyright (c) 1994-2008 AT&T Corp. *
+* and is licensed under the *
+* Common Public License, Version 1.0 *
+* by AT&T Corp. *
+* *
+* Information and Software Systems Research *
+* AT&T Research, Florham Park NJ *
+**********************************************************/
+
+#import "GVGraph.h"
+#import "GVGraphArguments.h"
+#import "GVGraphDefaultAttributes.h"
+
+extern double PSinputscale;
+
+static GVC_t *_graphContext = nil;
+
+@implementation GVGraph
+
+@synthesize graph = _graph;
+@synthesize arguments = _arguments;
+@synthesize graphAttributes = _graphAttributes;
+@synthesize defaultNodeAttributes = _defaultNodeAttributes;
+@synthesize defaultEdgeAttributes = _defaultEdgeAttributes;
+
++ (void)initialize
+{
+ _graphContext = gvContext();
+}
+
+- (id)initWithURL:(NSURL*)URL error:(NSError**)outError
+{
+ if (self = [super init]) {
+ if ([URL isFileURL]) {
+ /* open a FILE* on the file URL */
+ FILE *file = fopen([[URL path] fileSystemRepresentation], "r");
+ if (!file) {
+ if (outError)
+ *outError = [NSError errorWithDomain:NSPOSIXErrorDomain code:errno userInfo:nil];
+ [self autorelease];
+ return nil;
+ }
+
+ if (_graph)
+ agclose(_graph);
+ _graph = agread(file);
+ fclose(file);
+ }
+ else {
+ /* read the URL into memory */
+ NSMutableData *memory = [NSMutableData dataWithContentsOfURL:URL options:0 error:outError];
+ if (!memory) {
+ [self autorelease];
+ return nil;
+ }
+
+ /* null terminate the data */
+ char nullByte = '\0';
+ [memory appendBytes:&nullByte length:1];
+
+ if (_graph)
+ agclose(_graph);
+ _graph = agmemread((char*)[memory bytes]);
+ }
+
+ _freeLastLayout = NO;
+ _arguments = [[GVGraphArguments alloc] initWithGraph:self];
+ _graphAttributes = [[GVGraphDefaultAttributes alloc] initWithGraph:self defaultAttributes:_graph->univ->globattr attributeDeclaration:agraphattr];
+ _defaultNodeAttributes = [[GVGraphDefaultAttributes alloc] initWithGraph:self defaultAttributes:_graph->univ->nodeattr attributeDeclaration:agnodeattr];
+ _defaultEdgeAttributes = [[GVGraphDefaultAttributes alloc] initWithGraph:self defaultAttributes:_graph->univ->edgeattr attributeDeclaration:agedgeattr];
+ }
+
+ return self;
+}
+
+- (BOOL)writeToURL:(NSURL*)URL error:(NSError**)outError
+{
+ if ([URL isFileURL]) {
+ /* open a FILE* on the file URL */
+ FILE *file = fopen([[URL path] fileSystemRepresentation], "w");
+ if (!file) {
+ if (outError)
+ *outError = [NSError errorWithDomain:NSPOSIXErrorDomain code:errno userInfo:nil];
+ return NO;
+ }
+
+ /* write it out */
+ if (agwrite(_graph, file) != 0) {
+ if (outError)
+ *outError = [NSError errorWithDomain:NSPOSIXErrorDomain code:errno userInfo:nil];
+ return NO;
+ }
+
+ fclose(file);
+ return YES;
+ }
+ else
+ /* can't write out to non-file URL */
+ return NO;
+}
+
+- (void)noteChanged:(BOOL)relayout
+{
+ /* if we need to layout, apply globals and then relayout */
+ if (relayout) {
+ NSString* layout = [_arguments objectForKey:@"layout"];
+ if (layout) {
+ if (_freeLastLayout)
+ gvFreeLayout(_graphContext, _graph);
+
+ /* apply scale */
+ NSString* scale = [_arguments objectForKey:@"scale"];
+ PSinputscale = scale ? [scale doubleValue] : 0.0;
+ if (PSinputscale == 0.0)
+ PSinputscale = 72.0;
+
+ if (gvLayout(_graphContext, _graph, (char*)[layout UTF8String]) != 0)
+ @throw [NSException exceptionWithName:@"GVException" reason:@"bad layout" userInfo:nil];
+ _freeLastLayout = YES;
+ }
+ }
+
+
+ [[NSNotificationCenter defaultCenter] postNotificationName: @"GVGraphDidChange" object:self];
+}
+
+- (NSData*)renderWithFormat:(NSString*)format
+{
+ char *renderedData = NULL;
+ unsigned int renderedLength = 0;
+ if (gvRenderData(_graphContext, _graph, (char*)[format UTF8String], &renderedData, &renderedLength) != 0)
+ @throw [NSException exceptionWithName:@"GVException" reason:@"bad render" userInfo:nil];
+ return [NSData dataWithBytesNoCopy:renderedData length:renderedLength freeWhenDone:YES];
+
+}
+
+- (void)renderWithFormat:(NSString*)format toURL:(NSURL*)URL
+{
+ if ([URL isFileURL]) {
+ if (gvRenderFilename(_graphContext, _graph, (char*)[format UTF8String], (char*)[[URL path] UTF8String]) != 0)
+ @throw [NSException exceptionWithName:@"GVException" reason:@"bad render" userInfo:nil];
+ }
+ else
+ [[self renderWithFormat:format] writeToURL:URL atomically:NO];
+}
+
+
+- (void)dealloc
+{
+ if (_graph)
+ agclose(_graph);
+
+ [_arguments release];
+ [_graphAttributes release];
+ [_defaultNodeAttributes release];
+ [_defaultEdgeAttributes release];
+
+ [super dealloc];
+}
+
+@end
projects / graphviz / commitdiff