GnudoManager.h

#import <Cocoa/Cocoa.h>


/* Interface for <NSUndoManager> for GNUStep
 Copyright (C) 1998 Free Software Foundation, Inc.
 
 Written by:  Richard Frith-Macdonald <richard@brainstorm.co.uk>
 
 This file is part of the GNUstep Base 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; if not, write to the Free
 Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111 USA.
 */ 


/* Public notification */

/**
 *  Notification posted whenever [NSUndoManager] opens or closes an undo
 *  group.  The undo manager itself is the notification object, with no
 *  <em>userInfo</em> dictionary.
 */
extern NSString* const NSUndoManagerCheckpointNotification;

/**
 * Notification posted after an [NSUndoManager] opens an undo group.
 */
extern NSString* const NSUndoManagerDidOpenUndoGroupNotification;

/**
 * Notification posted after an [NSUndoManager] executes a redo operation.
 */
extern NSString* const NSUndoManagerDidRedoChangeNotification;

/**
 * Notification posted after an [NSUndoManager] executes an undo operation.
 */
extern NSString* const NSUndoManagerDidUndoChangeNotification;

/**
 * Notification posted before an [NSUndoManager] closes an undo group.
 */
extern NSString* const NSUndoManagerWillCloseUndoGroupNotification;

/**
 * Notification posted before an [NSUndoManager] will execute a redo operation.
 */
extern NSString* const NSUndoManagerWillRedoChangeNotification;

/**
 * Notification posted before an [NSUndoManager] will execute an undo operation.
 */
extern NSString* const NSUndoManagerWillUndoChangeNotification;

@interface GnudoManager: NSObject
{
@private
    NSMutableArray	*_redoStack;
    NSMutableArray	*_undoStack;
    id                  *_unused1;
    id			m_group;
    id			_nextTarget;
    NSArray		*_modes;
    BOOL		_isRedoing;
    BOOL		_isUndoing;
    BOOL		_groupsByEvent;
    BOOL		_runLoopGroupingPending;
    unsigned		_disableCount;
    unsigned		_levelsOfUndo;
}

- (void) beginUndoGrouping;//
- (BOOL) canRedo;//
- (BOOL) canUndo;//
- (void) disableUndoRegistration;//
- (void) enableUndoRegistration;//
- (void) endUndoGrouping;//
- (void) forwardInvocation: (NSInvocation*)anInvocation;
- (int) groupingLevel;//
- (BOOL) groupsByEvent;//
- (BOOL) isRedoing;//
- (BOOL) isUndoing;//
- (BOOL) isUndoRegistrationEnabled;//
- (unsigned int) levelsOfUndo;//
- (id) prepareWithInvocationTarget: (id)target;//
- (void) redo;//
- (NSString*) redoActionName;//
- (NSString*) redoMenuItemTitle;//
- (NSString*) redoMenuTitleForUndoActionName: (NSString*)actionName;//
- (void) registerUndoWithTarget: (id)target//
					   selector: (SEL)aSelector
						 object: (id)anObject;
- (void) removeAllActions;//
- (void) removeAllActionsWithTarget: (id)target;//
- (NSArray*) runLoopModes;//
- (void) setActionName: (NSString*)name;//
- (void) setGroupsByEvent: (BOOL)flag;//
- (void) setLevelsOfUndo: (unsigned)num;//
- (void) setRunLoopModes: (NSArray*)newModes;//
- (void) undo;//
- (NSString*) undoActionName;//
- (NSString*) undoMenuItemTitle;//
- (NSString*) undoMenuTitleForUndoActionName: (NSString*)actionName;//
- (void) undoNestedGroup;//

@end