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git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gui/trunk@22893 72102866-910b-0410-8b05-ffd578937521
122 lines
3.1 KiB
Objective-C
122 lines
3.1 KiB
Objective-C
/*
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NSDragging.h
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Protocols for drag 'n' drop.
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Copyright (C) 1997 Free Software Foundation, Inc.
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Author: Simon Frankau <sgf@frankau.demon.co.uk>
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Date: 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., 51 Franklin Street, Fifth Floor, Boston, MA 02111 USA.
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*/
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#ifndef _GNUstep_H_NSDragging
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#define _GNUstep_H_NSDragging
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#include <Foundation/NSGeometry.h>
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@class NSWindow;
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@class NSPasteboard;
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@class NSImage;
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typedef enum _NSDragOperation {
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NSDragOperationNone = 0,
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NSDragOperationCopy = 1,
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NSDragOperationLink = 2,
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NSDragOperationGeneric = 4,
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NSDragOperationPrivate = 8,
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NSDragOperationMove = 16,
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NSDragOperationDelete = 32,
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NSDragOperationAll = 63,
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NSDragOperationEvery = NSDragOperationAll
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} NSDragOperation;
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@protocol NSDraggingInfo
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//
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// Dragging-session Information
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//
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- (NSWindow *)draggingDestinationWindow;
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- (NSPoint)draggingLocation;
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- (NSPasteboard *)draggingPasteboard;
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- (int)draggingSequenceNumber;
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- (id)draggingSource;
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- (unsigned int)draggingSourceOperationMask;
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//
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// Image Information
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//
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- (NSImage *)draggedImage;
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- (NSPoint)draggedImageLocation;
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//
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// Sliding the Image
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//
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- (void)slideDraggedImageTo:(NSPoint)screenPoint;
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@end
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@interface NSObject (NSDraggingDestination)
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//
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// Before the Image is Released
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//
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- (NSDragOperation)draggingEntered:(id <NSDraggingInfo>)sender;
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- (NSDragOperation)draggingUpdated:(id <NSDraggingInfo>)sender;
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- (void)draggingExited:(id <NSDraggingInfo>)sender;
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//
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// After the Image is Released
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//
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- (BOOL)prepareForDragOperation:(id <NSDraggingInfo>)sender;
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- (BOOL)performDragOperation:(id <NSDraggingInfo>)sender;
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- (void)concludeDragOperation:(id <NSDraggingInfo>)sender;
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#ifndef STRICT_OPENSTEP
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- (void)draggingEnded: (id <NSDraggingInfo>)sender;
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- (BOOL)wantsPeriodicDraggingUpdates;
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#endif
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@end
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@interface NSObject (NSDraggingSource)
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//
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// Querying the Source
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//
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- (unsigned int)draggingSourceOperationMaskForLocal:(BOOL)isLocal;
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- (BOOL)ignoreModifierKeysWhileDragging;
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//
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// Informing the Source
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//
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- (void)draggedImage:(NSImage *)image
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beganAt:(NSPoint)screenPoint;
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- (void)draggedImage: (NSImage*)image
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endedAt: (NSPoint)screenPoint
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deposited: (BOOL)didDeposit;
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#ifndef STRICT_OPENSTEP
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- (void)draggedImage: (NSImage*)image
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endedAt: (NSPoint)screenPoint
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operation: (NSDragOperation)operation;
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- (void)draggedImage: (NSImage*)image
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movedTo: (NSPoint)screenPoint;
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#endif
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@end
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#endif // _GNUstep_H_NSDragging
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