#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;

@property (nonatomic) NSInteger offset;

@property (nonatomic, readonly) NSUInteger originalIndex; // returns index without offset