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git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gui/trunk@3916 72102866-910b-0410-8b05-ffd578937521
146 lines
4 KiB
Objective-C
146 lines
4 KiB
Objective-C
/*
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IMConnectors.m
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Copyright (C) 1996 Free Software Foundation, Inc.
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Author: Ovidiu Predescu <ovidiu@net-community.com>
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Date: November 1997
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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 Library 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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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with this library; if not, write to the Free
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Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <string.h>
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#import <AppKit/NSActionCell.h>
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#include <AppKit/GMArchiver.h>
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#include "AppKit/IMCustomObject.h"
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#include "IMConnectors.h"
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#if GNU_RUNTIME
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#include <objc/objc-api.h>
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#include <objc/Protocol.h>
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#include <objc/encoding.h>
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#else /* NeXT_RUNTIME */
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#include <objc/objc-class.h>
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//#include <extensions/objc-api.h>
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//#include <extensions/encoding.h>
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#endif
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static void
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object_set_instance_variable (id anObject,
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const char* variableName,
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const void* value)
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{
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struct objc_class* class;
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struct objc_ivar_list* ivars;
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int i;
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if (!anObject)
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return;
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// NSLog (@"%@: setting ivar '%s' to %x", anObject, variableName, value);
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class = [anObject class];
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ivars = class->ivars;
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if (!ivars)
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return;
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for (i = 0; i < ivars->ivar_count; i++) {
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struct objc_ivar ivar = ivars->ivar_list[i];
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if (ivar.ivar_name && !strcmp (ivar.ivar_name, variableName)) {
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/* We found it! */
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*((void**)(((char*)anObject) + ivar.ivar_offset)) = value;
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break;
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}
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}
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}
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@implementation IMConnector
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- (void)encodeWithModelArchiver:(GMArchiver*)archiver
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{
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[archiver encodeObject:source withName:@"source"];
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[archiver encodeObject:destination withName:@"destination"];
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[archiver encodeObject:label withName:@"label"];
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}
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- (id)initWithModelUnarchiver:(GMUnarchiver*)unarchiver
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{
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source = [unarchiver decodeObjectWithName:@"source"];
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destination = [unarchiver decodeObjectWithName:@"destination"];
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label = [unarchiver decodeObjectWithName:@"label"];
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return self;
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}
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- (id)source { return source; }
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- (id)destination { return destination; }
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- (id)label { return label; }
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@end /* IMConnector */
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@implementation IMControlConnector:IMConnector
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- (void)establishConnection
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{
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id _source = [source nibInstantiate];
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id _destination = [destination nibInstantiate];
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SEL action = NSSelectorFromString (label);
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if ([_source respondsToSelector:@selector(setTarget:)]) {
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// NSLog (@"%@: setting target to %@", _source, _destination);
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[_source setTarget:_destination];
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}
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else
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object_set_instance_variable (_source, "target", [_destination retain]);
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if ([_source respondsToSelector:@selector(setAction:)]) {
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// NSLog (@"%@: setting action to %@",
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// _source, NSStringFromSelector(action));
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[_source setAction:action];
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}
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else
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object_set_instance_variable (_source, "action", action);
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}
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@end /* IMControlConnector:IMConnector */
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@implementation IMOutletConnector
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- (void)establishConnection
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{
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id _source = [source nibInstantiate];
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id _destination = [destination nibInstantiate];
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NSString* setMethodName = [[@"set" stringByAppendingString:
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[label capitalizedString]]
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stringByAppendingString:@":"];
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SEL setSelector = NSSelectorFromString (setMethodName);
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// NSLog (@"establish connection: source %@, destination %@, label %@",
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// _source, _destination, label);
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if (setSelector && [_source respondsToSelector:setSelector])
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[_source performSelector:setSelector withObject:_destination];
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else
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object_set_instance_variable(_source, [label cString], [_destination retain]);
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}
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@end /* IMOutletConnector */
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