ricky cancro 774d91653b flailing
2015-08-19 16:59:23 -07:00

33 lines
1.1 KiB
Objective-C

/*
* Copyright (c) 2014-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*
*/
#import <AsyncDisplayKit/ASDimension.h>
#import <AsyncDisplayKit/ASStackLayoutDefines.h>
@class ASLayout;
/**
* The ASLayoutable protocol declares a method for measuring the layout of an object. A class must implement the method
* so that instances of that class can be used to build layout trees. The protocol also provides information
* about how an object should be laid out within an ASStackLayoutSpec.
*/
@protocol ASLayoutable <NSObject>
/**
* @abstract Calculate a layout based on given size range.
*
* @param constrainedSize The minimum and maximum sizes the receiver should fit in.
*
* @return An ASLayout instance defining the layout of the receiver and its children.
*/
- (ASLayout *)measureWithSizeRange:(ASSizeRange)constrainedSize;
@end