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dcd2e40b41
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gui/trunk@4327 72102866-910b-0410-8b05-ffd578937521
75 lines
1.9 KiB
Objective-C
75 lines
1.9 KiB
Objective-C
/*
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GSDragManager.m
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Copyright (C) 1999 Free Software Foundation, Inc.
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Author: Richard Frith-Macdonald <richard@brainstorm.co.uk>
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Date: June 1999
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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; see the file COPYING.LIB.
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If not, write to the Free Software Foundation,
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59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include <gnustep/gui/config.h>
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#include <Foundation/Foundation.h>
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#include <AppKit/AppKit.h>
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/*
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* Stuff to maintain a map table so we know what windows and views are
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* registered for drag and drop.
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* FIXME - may need locks for thread safety?
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*/
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static NSMapTable *typesMap = 0;
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static inline void
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GSSetupDragTypes()
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{
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if (typesMap == 0)
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{
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typesMap = NSCreateMapTable(NSNonOwnedPointerMapKeyCallBacks,
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NSObjectMapValueCallBacks, 0);
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}
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}
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NSArray*
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GSGetDragTypes(id obj)
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{
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GSSetupDragTypes();
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return NSMapGet(typesMap, (void*)(gsaddr)obj);
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}
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void
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GSRegisterDragTypes(id obj, NSArray *types)
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{
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NSArray *m = [types mutableCopy];
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NSArray *t = [m copy];
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RELEASE(m);
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GSSetupDragTypes();
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NSMapInsert(typesMap, (void*)(gsaddr)obj, (void*)(gsaddr)t);
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RELEASE(t);
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}
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void
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GSUnregisterDragTypes(id obj)
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{
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GSSetupDragTypes();
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NSMapRemove(typesMap, (void*)(gsaddr)obj);
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}
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