mirror of
https://github.com/gnustep/libs-gui.git
synced 2025-04-25 17:51:02 +00:00
76 lines
1.9 KiB
Mathematica
76 lines
1.9 KiB
Mathematica
|
/*
|
||
|
|
GSDragManager.m
|
||
|
|
|
||
|
|
Copyright (C) 1999 Free Software Foundation, Inc.
|
||
|
|
|
||
|
|
Author: Richard Frith-Macdonald <richard@brainstorm.co.uk>
|
||
|
|
Date: June 1999
|
||
|
|
|
||
|
|
This file is part of the GNUstep GUI 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; see the file COPYING.LIB.
|
||
|
|
If not, write to the Free Software Foundation,
|
||
|
|
59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <gnustep/gui/config.h>
|
||
|
|
|
||
|
|
#include <Foundation/Foundation.h>
|
||
|
|
#include <AppKit/AppKit.h>
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Stuff to maintain a map table so we know what windows and views are
|
||
|
|
* registered for drag and drop.
|
||
|
|
* FIXME - may need locks for thread safety?
|
||
|
|
*/
|
||
|
|
static NSMapTable *typesMap = 0;
|
||
|
|
|
||
|
|
static inline void
|
||
|
|
GSSetupDragTypes()
|
||
|
|
{
|
||
|
|
if (typesMap == 0)
|
||
|
|
{
|
||
|
|
typesMap = NSCreateMapTable(NSNonOwnedPointerMapKeyCallBacks,
|
||
|
|
NSObjectMapValueCallBacks, 0);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
NSArray*
|
||
|
|
GSGetDragTypes(id obj)
|
||
|
|
{
|
||
|
|
GSSetupDragTypes();
|
||
|
|
return NSMapGet(typesMap, (void*)(gsaddr)obj);
|
||
|
|
}
|
||
|
|
|
||
|
|
void
|
||
|
|
GSRegisterDragTypes(id obj, NSArray *types)
|
||
|
|
{
|
||
|
|
NSArray *m = [types mutableCopy];
|
||
|
|
NSArray *t = [m copy];
|
||
|
|
|
||
|
|
RELEASE(m);
|
||
|
|
GSSetupDragTypes();
|
||
|
|
NSMapInsert(typesMap, (void*)(gsaddr)obj, (void*)(gsaddr)t);
|
||
|
|
RELEASE(t);
|
||
|
|
}
|
||
|
|
|
||
|
|
void
|
||
|
|
GSUnregisterDragTypes(id obj)
|
||
|
|
{
|
||
|
|
GSSetupDragTypes();
|
||
|
|
NSMapRemove(typesMap, (void*)(gsaddr)obj);
|
||
|
|
}
|
||
|
|
|
||
|
|
|