Move GMArchiver files so gui doesnt depend on extenions

git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gui/trunk@3614 72102866-910b-0410-8b05-ffd578937521

Model/GMArchiveObjects.m

@@ -0,0 +1,168 @@
+/*
+   GMArchiveObjects.m
+
+   Author: Ovidiu Predescu <ovidiu@net-community.com>
+   Date: October 1997
+
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   All rights reserved.
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public
+   License as published by the Free Software Foundation; either
+   version 2 of the License, or (at your option) any later version.
+
+   This library 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with this library; see the file COPYING.LIB.
+   If not, write to the Free Software Foundation,
+   59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+*/
+
+/* This file declares categories to various OpenStep classes so they get
+   archived correctly by GMArchiver. The main things deal with encoding in
+   place of some objects like imutable strings, arrays, dictionaries and
+   data objects (basically the property list classes).
+
+  This file is included by GMArchiver rather than compiled as a separate file
+  because of the linking problems with categories (they are not linked into
+  the executable even if you refer a method from category; you should refer a
+  symbol from the category's file in order to force it link.
+ */
+
+#import <Foundation/NSData.h>
+
+
+@implementation NSObject (ModelArchivingMethods)
+- (id)replacementObjectForModelArchiver:(GMArchiver*)archiver
+{
+  return [self replacementObjectForCoder:nil];
+}
+
+- (Class)classForModelArchiver
+{
+  return [self classForCoder];
+}
+
++ (id)createObjectForModelUnarchiver:(GMUnarchiver*)unarchiver
+{
+  return [[[self allocWithZone:[unarchiver objectZone]] init] autorelease];
+}
+@end
+
+
+@implementation NSString (ModelArchivingMethods)
+- (void)encodeWithModelArchiver:(id)archiver
+{
+  [archiver encodeString:self withName:@"string"];
+}
+
+- (id)initWithModelUnarchiver:(GMUnarchiver*)unarchiver
+{
+  return [unarchiver decodeStringWithName:@"string"];
+}
+
+- (Class)classForModelArchiver
+{
+  return [NSString class];
+}
+@end
+
+
+@implementation NSMutableString (ModelArchivingMethods)
+- (Class)classForModelArchiver
+{
+  return [NSMutableString class];
+}
+
+- (id)initWithModelUnarchiver:(GMUnarchiver*)unarchiver
+{
+  return [[[unarchiver decodeStringWithName:@"string"] mutableCopy]
+		autorelease];
+}
+@end
+
+
+@implementation NSArray (ModelArchivingMethods)
+- (void)encodeWithModelArchiver:(id)archiver
+{
+  [archiver encodeArray:self withName:@"elements"];
+}
+
+- (Class)classForModelArchiver
+{
+  return [NSMutableArray class];
+}
+@end
+
+
+@implementation NSMutableArray (ModelArchivingMethods)
+- (id)initWithModelUnarchiver:(GMUnarchiver*)unarchiver
+{
+  id array = [unarchiver decodeArrayWithName:@"elements"];
+  int i, count;
+
+  for (i = 0, count = [array count]; i < count; i++)
+    [self addObject:[array objectAtIndex:i]];
+
+  return self;
+}
+@end
+
+
+@implementation NSDictionary (ModelArchivingMethods)
+- (void)encodeWithModelArchiver:(id)archiver
+{
+  [archiver encodeDictionary:self withName:@"elements"];
+}
+
+- (Class)classForModelArchiver
+{
+  return [NSMutableDictionary class];
+}
+@end
+
+
+@implementation NSMutableDictionary (ModelArchivingMethods)
+- (id)initWithModelUnarchiver:(GMUnarchiver*)unarchiver
+{
+  id dictionary = [unarchiver decodeDictionaryWithName:@"elements"];
+  id enumerator = [dictionary keyEnumerator];
+  id key, value;
+
+  while ((key = [enumerator nextObject])) {
+    value = [dictionary objectForKey:key];
+    [self setObject:value forKey:key];
+  }
+
+  return self;
+}
+@end
+
+
+@implementation NSData (ModelArchivingMethods)
+- (void)encodeWithModelArchiver:(id)archiver
+{
+  [archiver encodeData:self withName:@"data"];
+}
+
+- (Class)classForModelArchiver
+{
+  return [NSMutableData class];
+}
+@end
+
+
+@implementation NSMutableData (ModelArchivingMethods)
+- (id)initWithModelUnarchiver:(GMUnarchiver*)unarchiver
+{
+  id data = [unarchiver decodeDataWithName:@"data"];
+
+  [self appendData:data];
+  return self;
+}
+@end