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155 lines
4 KiB
Objective-C
155 lines
4 KiB
Objective-C
/** <title>GSGModelLoader</title>
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<abstract>GModel loader</abstract>
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Copyright (C) 1997, 1999 Free Software Foundation, Inc.
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Author: Gregory John Casamento <greg_casamento@yahoo.com>
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Date: 2005
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This file is part of the GNUstep GUI Library.
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; see the file COPYING.LIB.
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If not, see <http://www.gnu.org/licenses/> or write to the
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Free Software Foundation, 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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#import <Foundation/NSArray.h>
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#import <Foundation/NSBundle.h>
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#import <Foundation/NSDebug.h>
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#import <Foundation/NSData.h>
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#import <Foundation/NSDictionary.h>
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#import <Foundation/NSEnumerator.h>
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#import <Foundation/NSException.h>
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#import <Foundation/NSFileManager.h>
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#import <Foundation/NSPathUtilities.h>
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#import <Foundation/NSString.h>
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#import "AppKit/NSNib.h"
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#import "GNUstepGUI/GSModelLoaderFactory.h"
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#import "GNUstepGUI/IMLoading.h"
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static
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Class gmodel_class(void)
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{
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static Class gmclass = Nil;
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if (gmclass == Nil)
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{
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NSBundle *theBundle;
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NSEnumerator *benum;
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NSString *path;
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/* Find the bundle */
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benum = [NSStandardLibraryPaths() objectEnumerator];
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while ((path = [benum nextObject]))
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{
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path = [path stringByAppendingPathComponent: @"Bundles"];
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path = [path stringByAppendingPathComponent: @"libgmodel.bundle"];
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if ([[NSFileManager defaultManager] fileExistsAtPath: path])
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break;
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}
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NSCAssert(path != nil, @"Unable to load gmodel bundle");
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NSDebugLog(@"Loading gmodel from %@", path);
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theBundle = [NSBundle bundleWithPath: path];
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NSCAssert(theBundle != nil, @"Can't init gmodel bundle");
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gmclass = [theBundle classNamed: @"GMModel"];
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NSCAssert(gmclass, @"Can't load gmodel bundle");
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}
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return gmclass;
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}
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@interface GSGModelLoader : GSModelLoader
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@end
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@implementation GSGModelLoader
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+ (void) initialize
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{
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// register for the gmodel type.
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}
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+ (BOOL) canReadData: (NSData *)theData
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{
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char *header = calloc(1024, sizeof(char));
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if (header != NULL)
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{
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NSUInteger len = [theData length];
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NSRange r = NSMakeRange(len - 1024, len - 1);
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NSString *hdr = nil;
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[theData getBytes: header
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range: r];
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hdr = [[NSString alloc] initWithBytes: header
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length: 1024
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encoding: NSUTF8StringEncoding];
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AUTORELEASE(hdr);
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if ([hdr containsString: @"GMModel"])
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{
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return YES;
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}
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free(header);
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}
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return NO;
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}
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+ (NSString *) type
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{
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return @"gmodel";
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}
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+ (float) priority
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{
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return 2.0;
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}
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- (NSData *) dataForFile: (NSString *)fileName
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{
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// Horrible hack
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return (NSData*)fileName;
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}
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- (BOOL) loadModelData: (NSData *)data
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externalNameTable: (NSDictionary *)context
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withZone: (NSZone *)zone
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{
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// Horrible hack
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return [self loadModelFile: (NSString *)data
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externalNameTable: context
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withZone: zone];
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}
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- (BOOL) loadModelFile: (NSString *)fileName
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externalNameTable: (NSDictionary *)context
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withZone: (NSZone *)zone;
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{
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NSString *ext = [fileName pathExtension];
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/*
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* If the file to be read is a gmodel, use the GMModel method to
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* read it in and skip the dearchiving below.
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*/
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if ([ext isEqualToString: @"gmodel"])
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{
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return [gmodel_class() loadIMFile: fileName
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owner: [context objectForKey: NSNibOwner]];
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}
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return NO;
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}
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@end
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