mirror of
https://github.com/Swiftgram/Telegram-iOS.git
synced 2025-09-04 11:50:38 +00:00
80 lines
2.6 KiB
Objective-C
80 lines
2.6 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 Additional space to place before this object in the stacking direction.
|
|
* Used when attached to a stack layout.
|
|
*/
|
|
@property (nonatomic, readwrite) CGFloat spacingBefore;
|
|
|
|
/**
|
|
* @abstract Additional space to place after this object in the stacking direction.
|
|
* Used when attached to a stack layout.
|
|
*/
|
|
@property (nonatomic, readwrite) CGFloat spacingAfter;
|
|
|
|
/**
|
|
* @abstract If the sum of childrens' stack dimensions is less than the minimum size, should this object grow?
|
|
* Used when attached to a stack layout.
|
|
*/
|
|
@property (nonatomic, readwrite) BOOL flexGrow;
|
|
|
|
/**
|
|
* @abstract If the sum of childrens' stack dimensions is greater than the maximum size, should this object shrink?
|
|
* Used when attached to a stack layout.
|
|
*/
|
|
@property (nonatomic, readwrite) BOOL flexShrink;
|
|
|
|
/**
|
|
* @abstract Specifies the initial size in the stack dimension for this object.
|
|
* Default to ASRelativeDimensionUnconstrained.
|
|
* Used when attached to a stack layout.
|
|
*/
|
|
@property (nonatomic, readwrite) ASRelativeDimension flexBasis;
|
|
|
|
/**
|
|
* @abstract Orientation of the object along cross axis, overriding alignItems
|
|
* Used when attached to a stack layout.
|
|
*/
|
|
@property (nonatomic, readwrite) ASStackLayoutAlignSelf alignSelf;
|
|
|
|
/**
|
|
* @abstract Used for baseline alignment. The distance from the top of the object to its baseline.
|
|
*/
|
|
@property (nonatomic, readwrite) CGFloat ascender;
|
|
|
|
/**
|
|
* @abstract Used for baseline alignment. The distance from the baseline of the object to its bottom.
|
|
*/
|
|
@property (nonatomic, readwrite) CGFloat descender;
|
|
|
|
/**
|
|
* @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
|