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/*
* AQGridViewUpdateItem.h
* AQGridView
*
* Created by Jim Dovey on 1/3/2010.
* Copyright (c) 2010 Kobo Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* Neither the name of the project's author nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#import <Foundation/Foundation.h>
#import "AQGridView.h"
typedef enum {
AQGridViewUpdateActionInsert,
AQGridViewUpdateActionDelete,
AQGridViewUpdateActionMove,
AQGridViewUpdateActionReload
} AQGridViewUpdateAction;
@interface AQGridViewUpdateItem : NSObject
{
NSUInteger _index;
NSUInteger _newIndex;
AQGridViewUpdateAction _action;
AQGridViewItemAnimation _animation;
NSInteger _offset;
}
- (id) initWithIndex: (NSUInteger) index action: (AQGridViewUpdateAction) action animation: (AQGridViewItemAnimation) animation;
- (NSComparisonResult) compare: (AQGridViewUpdateItem *) other;
- (NSComparisonResult) inverseCompare: (AQGridViewUpdateItem *) other;
@property (nonatomic, readonly) NSUInteger index;
@property (nonatomic) NSUInteger newIndex; // only valid for AQGridViewUpdateActionMove
@property (nonatomic, readonly) AQGridViewUpdateAction action;
@property (nonatomic, readonly) AQGridViewItemAnimation animation;
// this is an offset to apply to the index, due to other changes in the list which occurred since this index was chosen
@property (nonatomic) NSInteger offset;
@property (nonatomic, readonly) NSUInteger originalIndex; // returns index without offset
@end