Swiftgram/AsyncDisplayKit/Layout/ASRatioLayoutNode.h
Huy Nguyen f588bceb4d Introduce ASLayoutable and eliminate ASCompositeNode:
- Both ASDisplayNode and ASLayoutNode conforms to this protocol.
- ASDisplayNode can be embeded directly into layout graph.
- Eliminate ASCompositeNode.
- Fix ASStaticSizeDisplayNode not recpect min constrained size.
- Updated tests.
2015-06-26 09:29:16 +07:00

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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/ASLayoutNode.h>
#import <AsyncDisplayKit/ASLayoutable.h>
/**
Ratio layout node
For when the content should respect a certain inherent ratio but can be scaled (think photos or videos)
The ratio passed is the ratio of height / width you expect
For a ratio 0.5, the node will have a flat rectangle shape
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For a ratio 2.0, the node will be twice as tall as it is wide
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|_ _|
**/
@interface ASRatioLayoutNode : ASLayoutNode
+ (instancetype)newWithRatio:(CGFloat)ratio child:(id<ASLayoutable>)child;
@end