2018-12-13 07:09:28 -08:00
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/**
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* Copyright (c) Facebook, Inc. and its affiliates.
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2014-10-29 08:01:22 -07:00
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*
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2018-12-13 07:09:28 -08:00
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* This source code is licensed under the MIT license found in the LICENSE
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* file in the root directory of this source tree.
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2014-10-29 08:01:22 -07:00
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*/
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2016-12-05 02:56:20 -08:00
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package com.facebook.yoga;
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2014-09-18 15:15:21 -07:00
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2016-12-02 05:47:43 -08:00
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public class YogaConstants {
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2014-09-18 15:15:21 -07:00
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2018-12-13 07:09:28 -08:00
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public static final float UNDEFINED = Float.NaN;
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2014-12-02 22:30:44 +00:00
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public static boolean isUndefined(float value) {
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2018-12-13 07:09:28 -08:00
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return Float.compare(value, UNDEFINED) == 0;
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2014-12-02 22:30:44 +00:00
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}
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Add feature to use percentage as value unit
Summary:
Adds the feature to use percentage as a value unit.
You can use the function ```YGPx(float)``` and ```YGPercent(float)``` for convenience.
I did some benchmarks:
```
Without Percentage Feature - Release x86:
Stack with flex: median: 0.000000 ms, stddev: 0.146683 ms
Align stretch in undefined axis: median: 0.000000 ms, stddev: 0.136525 ms
Nested flex: median: 0.000000 ms, stddev: 0.490101 ms
Huge nested layout: median: 23.000000 ms, stddev: 0.928291 ms
Stack with flex: median: 0.000000 ms, stddev: 0.170587 ms
Align stretch in undefined axis: median: 0.000000 ms, stddev: 0.143384 ms
Nested flex: median: 0.000000 ms, stddev: 0.477791 ms
Huge nested layout: median: 22.000000 ms, stddev: 2.129779 ms
With Percentage Feature - Release x86:
Stack with flex: median: 0.000000 ms, stddev: 0.132951 ms
Align stretch in undefined axis: median: 0.000000 ms, stddev: 0.136525 ms
Nested flex: median: 0.000000 ms, stddev: 0.489570 ms
Huge nested layout: median: 21.000000 ms, stddev: 1.390476 ms
Closes https://github.com/facebook/yoga/pull/258
Reviewed By: dshahidehpour
Differential Revision: D4361945
Pulled By: emilsjolander
fbshipit-source-id: a8f5bc63ad352eb9410d792729e56664468cd76a
2017-01-02 05:20:37 -08:00
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public static boolean isUndefined(YogaValue value) {
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return value.unit == YogaUnit.UNDEFINED;
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}
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2018-11-22 02:33:33 -08:00
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public static float getUndefined() {
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return UNDEFINED;
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}
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2014-09-18 15:15:21 -07:00
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}
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