initial commit

PSCollectionView.h

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+//
+//  PSCollectionView.h
+//  PSKit
+//
+//  Created by Peter Shih on 11/24/11.
+//  Copyright (c) 2011 Peter Shih. All rights reserved.
+//
+
+#import <UIKit/UIKit.h>
+
+@protocol PSCollectionViewDelegate, PSCollectionViewDataSource;
+
+@interface PSCollectionView : UIScrollView <NSCoding, UIGestureRecognizerDelegate>
+
+@property (nonatomic, retain) UIView *headerView;
+@property (nonatomic, retain) UIView *footerView;
+@property (nonatomic, retain) UIView *emptyView;
+@property (nonatomic, retain) NSMutableSet *reuseableViews;
+@property (nonatomic, retain) NSMutableDictionary *visibleViews;
+@property (nonatomic, retain) NSMutableArray *viewKeysToRemove;
+@property (nonatomic, retain) NSMutableDictionary *indexToRectMap;
+@property (nonatomic, assign) NSInteger numColsLandscape;
+@property (nonatomic, assign) NSInteger numColsPortrait;
+@property (nonatomic, assign) CGFloat colWidth;
+@property (nonatomic, assign) id <PSCollectionViewDelegate> collectionViewDelegate;
+@property (nonatomic, assign) id <PSCollectionViewDataSource> collectionViewDataSource;
+
+#pragma mark - DataSource
+- (void)reloadViews;
+
+#pragma mark - Reusing Views
+- (UIView *)dequeueReusableView;
+- (void)enqueueReusableView:(UIView *)view;
+- (void)removeAndAddCellsIfNecessary;
+
+@end
+
+
+@protocol PSCollectionViewDelegate <NSObject>
+@optional
+- (void)collectionView:(PSCollectionView *)collectionView didSelectView:(UIView *)view atIndex:(NSInteger)index;
+
+@end
+
+@protocol PSCollectionViewDataSource <NSObject>
+
+@required
+- (NSInteger)numberOfViewsInCollectionView:(PSCollectionView *)collectionView;
+- (UIView *)collectionView:(PSCollectionView *)collectionView viewAtIndex:(NSInteger)index;
+- (CGFloat)heightForViewAtIndex:(NSInteger)index;
+
+@end