mirror of
https://github.com/Tencent/Hippy.git
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charleeshen
63 lines
2.0 KiB
C++
Executable File
63 lines
2.0 KiB
C++
Executable File
/* Tencent is pleased to support the open source community by making Hippy
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* available. Copyright (C) 2018 THL A29 Limited, a Tencent company. All rights
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* reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#pragma once
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#include <stdint.h>
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#include "Flex.h"
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typedef struct {
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HPSize availableSize;
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HPSize resultSize;
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MeasureMode widthMeasureMode;
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MeasureMode heightMeasureMode;
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FlexLayoutAction layoutAction;
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} MeasureResult;
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#define MAX_MEASURES_COUNT 6
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class HPLayoutCache {
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public:
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HPLayoutCache();
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virtual ~HPLayoutCache();
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void cacheResult(HPSize availableSize,
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HPSize resultSize,
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HPSizeMode measureMode,
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FlexLayoutAction layoutAction);
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MeasureResult* getCachedMeasureResult(HPSize availableSize,
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HPSizeMode measureMode,
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FlexLayoutAction layoutAction,
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bool isMeasureNode);
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MeasureResult* getCachedLayout();
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void clearCache();
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protected:
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void initCache();
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MeasureResult* useLayoutCacheIfPossible(HPSize availableSize, HPSizeMode measureMode);
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MeasureResult* useMeasureCacheIfPossible(HPSize availableSize,
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HPSizeMode measureMode,
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FlexLayoutAction layoutAction,
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bool isMeasureNode);
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private:
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MeasureResult cachedLayout;
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MeasureResult cachedMeasures[MAX_MEASURES_COUNT];
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uint32_t nextMeasureIndex;
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};
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