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90 lines
2.4 KiB
Objective-C
90 lines
2.4 KiB
Objective-C
/* IBViewResourceDragging.h
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*
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* Copyright (C) 2003 Free Software Foundation, Inc.
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*
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* Author: Gregory John Casamento <greg_casamento@yahoo.com>
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* Date: 2003
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*
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* This file is part of GNUstep.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation; either version 2.1 of the License, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111 USA.
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*/
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#ifndef INCLUDED_IBVIEWRESOURCEDRAGGING_H
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#define INCLUDED_IBVIEWRESOURCEDRAGGING_H
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#include <AppKit/AppKit.h>
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@class NSPasteboard;
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/**
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* Protocol describing those methods needed to accept resources.
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*/
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@protocol IBViewResourceDraggingDelegates
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/**
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* Ask if the view accepts the object.
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*/
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- (BOOL) acceptsViewResourceFromPasteboard: (NSPasteboard *)pb
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forObject: (id)obj
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atPoint: (NSPoint)p;
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/**
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* Perform the action of depositing the object.
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*/
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- (void) depositViewResourceFromPasteboard: (NSPasteboard *)pb
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onObject: (id)obj
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atPoint: (NSPoint)p;
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/**
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* Should we draw the connection frame when the resource is
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* dragged in?
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*/
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- (BOOL) shouldDrawConnectionFrame;
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/**
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* Types of resources accepted by this view.
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*/
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- (NSArray *)viewResourcePasteboardTypes;
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@end
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/**
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* Informal protocol on NSView.
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*/
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@interface NSView (IBViewResourceDraggingDelegates)
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/**
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* Types accepted by the view.
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*/
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+ (NSArray *) acceptedViewResourcePasteboardTypes;
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/**
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* Return the list of registered delegates.
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*/
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+ (NSArray *) registeredViewResourceDraggingDelegates;
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/**
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* Register a delegate.
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*/
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+ (void) registerViewResourceDraggingDelegate: (id<IBViewResourceDraggingDelegates>)delegate;
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/**
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* Remove a previously registered delegate.
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*/
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+ (void) unregisterViewResourceDraggingDelegate: (id<IBViewResourceDraggingDelegates>)delegate;
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@end
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#endif
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