react-native/Examples/Movies/getStyleFromScore.js

42 lines
849 B
JavaScript

/**
* Copyright (c) 2015-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.
*
* @flow
*/
'use strict';
var React = require('react-native');
var {
StyleSheet,
} = React;
var MAX_VALUE = 200;
function getStyleFromScore(score: number): {color: string} {
if (score < 0) {
return styles.noScore;
}
var normalizedScore = Math.round((score / 100) * MAX_VALUE);
return {
color: 'rgb(' +
(MAX_VALUE - normalizedScore) + ', ' +
normalizedScore + ', ' +
0 +
')'
};
}
var styles = StyleSheet.create({
noScore: {
color: '#999999',
},
});
module.exports = getStyleFromScore;