Initial revision

git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@251 72102866-910b-0410-8b05-ffd578937521

Source/NSCTemplateValue.m

@@ -0,0 +1,103 @@
+/* NSValue.h - Object encapsulation for C types.
+   Copyright (C) 1993,1994 Free Software Foundation, Inc.
+
+   Written by:  Adam Fedor <fedor@boulder.colorado.edu>
+   Date: Mar 1995
+
+   This file is part of the GNU Objective C Class Library.
+
+   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; if not, write to the Free
+   Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include <foundation/NSConcreteValue.h>
+#include <foundation/NSString.h>
+#include <foundation/NSException.h>
+#include <foundation/NSCoder.h>
+#include <objects/stdobjects.h>
+
+/* This file should be run through a preprocessor with the macro TYPE_ORDER
+   defined to a number from 0 to 4 cooresponding to each value type */
+#if TYPE_ORDER == 0
+#  define NSCTemplateValue	NSNonretainedObjectValue
+#  define TYPE_METHOD	nonretainedObjectValue
+#  define TYPE_NAME	id
+#elif TYPE_ORDER == 1
+#  define NSCTemplateValue	NSPointValue
+#  define TYPE_METHOD	pointValue
+#  define TYPE_NAME	NSPoint
+#elif TYPE_ORDER == 2
+#  define NSCTemplateValue	NSPointerValue
+#  define TYPE_METHOD	pointerValue
+#  define TYPE_NAME	void *
+#elif TYPE_ORDER == 3
+#  define NSCTemplateValue	NSRectValue
+#  define TYPE_METHOD	rectValue
+#  define TYPE_NAME	NSRect
+#elif TYPE_ORDER == 4
+#  define NSCTemplateValue	NSSizeValue
+#  define TYPE_METHOD	sizeValue
+#  define TYPE_NAME	NSSize
+#endif
+
+@implementation NSCTemplateValue
+
+// Allocating and Initializing 
+
+- initValue:(const void *)value
+      withObjCType:(const char *)type
+{
+    typedef _dt = data;
+    self = [super init];
+    data = *(_dt *)value;
+    return self;
+}
+
+// Accessing Data 
+- (void)getValue:(void *)value
+{
+    if (!value) {
+	[NSException raise:NSInvalidArgumentException
+	    format:@"Cannot copy value into NULL buffer"];
+	/* NOT REACHED */
+    }
+    memcpy( value, &data, objc_sizeof_type([self objCType]) );
+}
+
+- (const char *)objCType
+{
+    typedef _dt = data;
+    return @encode(_dt);
+}
+ 
+- (TYPE_NAME)TYPE_METHOD
+{
+    return data;
+}
+ 
+// NSCoding
+- (void)encodeWithCoder:(NSCoder *)coder
+{
+//FIXME    [super encodeWithCoder:coder];
+    [coder encodeValueOfObjCType:[self objCType] at:&data];
+}
+
+- (id)initWithCoder:(NSCoder *)coder
+{
+//FIXME    self = [super initWithCoder:coder];
+    [coder decodeValueOfObjCType:[self objCType] at:&data];
+    return self;
+}
+
+@end