51 lines
1.5 KiB
C
51 lines
1.5 KiB
C
|
/**
|
||
|
|
* Copyright (c) Facebook, Inc. and its affiliates.
|
||
|
|
*
|
||
|
|
* This source code is licensed under the MIT license found in the LICENSE
|
||
|
|
* file in the root directory of this source tree.
|
||
|
|
*/
|
||
|
|
#pragma once
|
||
|
|
#include "YGFloatOptional.h"
|
||
|
|
#include "Yoga-internal.h"
|
||
|
|
|
||
|
|
constexpr std::array<float, 2> kYGDefaultDimensionValues = {
|
||
|
|
{YGUndefined, YGUndefined}};
|
||
|
|
|
||
|
|
struct YGLayout {
|
||
|
|
std::array<float, 4> position = {};
|
||
|
|
std::array<float, 2> dimensions = kYGDefaultDimensionValues;
|
||
|
|
std::array<float, 6> margin = {};
|
||
|
|
std::array<float, 6> border = {};
|
||
|
|
std::array<float, 6> padding = {};
|
||
|
|
YGDirection direction : 2;
|
||
|
|
bool didUseLegacyFlag : 1;
|
||
|
|
bool doesLegacyStretchFlagAffectsLayout : 1;
|
||
|
|
bool hadOverflow : 1;
|
||
|
|
|
||
|
|
uint32_t computedFlexBasisGeneration = 0;
|
||
|
|
YGFloatOptional computedFlexBasis = {};
|
||
|
|
|
||
|
|
// Instead of recomputing the entire layout every single time, we cache some
|
||
|
|
// information to break early when nothing changed
|
||
|
|
uint32_t generationCount = 0;
|
||
|
|
YGDirection lastOwnerDirection = (YGDirection) -1;
|
||
|
|
|
||
|
|
uint32_t nextCachedMeasurementsIndex = 0;
|
||
|
|
std::array<YGCachedMeasurement, YG_MAX_CACHED_RESULT_COUNT>
|
||
|
|
cachedMeasurements = {};
|
||
|
|
std::array<float, 2> measuredDimensions = kYGDefaultDimensionValues;
|
||
|
|
|
||
|
|
YGCachedMeasurement cachedLayout = YGCachedMeasurement();
|
||
|
|
|
||
|
|
YGLayout()
|
||
|
|
: direction(YGDirectionInherit),
|
||
|
|
didUseLegacyFlag(false),
|
||
|
|
doesLegacyStretchFlagAffectsLayout(false),
|
||
|
|
hadOverflow(false) {}
|
||
|
|
|
||
|
|
bool operator==(YGLayout layout) const;
|
||
|
|
bool operator!=(YGLayout layout) const {
|
||
|
|
return !(*this == layout);
|
||
|
|
}
|
||
|
|
};
|