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95e787b226
- ASLayoutable requires mutable properties that are used when attached to a stack layout. - Thus, ASLayoutable objects (including ASDisplayNode) can be injected into stack layout directly. - ASStackLayoutNodeChild no longer needed. - Tests and Kitten sample updated.
37 lines
1.4 KiB
Objective-C
37 lines
1.4 KiB
Objective-C
/*
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* Copyright (c) 2014-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*
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*/
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#import <vector>
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#import "ASLayout.h"
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#import "ASStackLayoutNode.h"
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struct ASStackUnpositionedItem {
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/** The original source child. */
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id<ASLayoutable> child;
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/** The proposed layout. */
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ASLayout *layout;
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};
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/** Represents a set of stack layout children that have their final layout computed, but are not yet positioned. */
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struct ASStackUnpositionedLayout {
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/** A set of proposed child layouts, not yet positioned. */
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const std::vector<ASStackUnpositionedItem> items;
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/** The total size of the children in the stack dimension, including all spacing. */
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const CGFloat stackDimensionSum;
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/** The amount by which stackDimensionSum violates constraints. If positive, less than min; negative, greater than max. */
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const CGFloat violation;
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/** Given a set of children, computes the unpositioned layouts for those children. */
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static ASStackUnpositionedLayout compute(const std::vector<id<ASLayoutable>> &children,
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const ASStackLayoutNodeStyle &style,
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const ASSizeRange &sizeRange);
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};
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