Swiftgram/Source/Private/ASRectTable.h
2017-02-26 18:14:13 -08:00

65 lines
1.5 KiB
Objective-C

//
// ASRectTable.h
// AsyncDisplayKit
//
// Created by Adlai Holler on 2/24/17.
// Copyright © 2017 Facebook. All rights reserved.
//
#import <Foundation/Foundation.h>
#import <CoreGraphics/CGGeometry.h>
#import <AsyncDisplayKit/ASBaseDefines.h>
NS_ASSUME_NONNULL_BEGIN
/**
* An alias for an NSMapTable created to store rects.
*
* You should not call -objectForKey:, -setObject:forKey:, or -allObjects
* on these objects.
*/
typedef NSMapTable ASRectTable;
/**
* A category for creating & using map tables meant for storing CGRects.
*
* This category is private, so name collisions are not worth worrying about.
*/
@interface NSMapTable<KeyType, id> (ASRectTableMethods)
/**
* Creates a new rect table with (NSMapTableStrongMemory | NSMapTableObjectPointerPersonality) for keys.
*/
+ (ASRectTable *)rectTableForStrongObjectPointers;
/**
* Creates a new rect table with (NSMapTableWeakMemory | NSMapTableObjectPointerPersonality) for keys.
*/
+ (ASRectTable *)rectTableForWeakObjectPointers;
/**
* Retrieves the rect for a given key, or CGRectNull if the key is not found.
*
* @param key An object to lookup the rect for.
*/
- (CGRect)rectForKey:(KeyType)key;
/**
* Sets the given rect for the associated key.
*
* @param rect The rect to store as value.
* @param key The key to use for the rect.
*/
- (void)setRect:(CGRect)rect forKey:(KeyType)key;
/**
* Removes the rect for the given key, if one exists.
*
* @param key The key to remove.
*/
- (void)removeRectForKey:(KeyType)key;
@end
NS_ASSUME_NONNULL_END