superset mergeMargin 源码
superset mergeMargin 代码
文件路径：/superset-frontend/packages/superset-ui-core/src/dimension/mergeMargin.ts
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
import { Margin } from './types';
function mergeOneSide(
operation: (a: number, b: number) => number,
a = 0,
b = 0,
) {
if (Number.isNaN(a) || a === null) return b;
if (Number.isNaN(b) || b === null) return a;
return operation(a, b);
}
export default function mergeMargin(
margin1: Partial<Margin> = {},
margin2: Partial<Margin> = {},
mode: 'expand' | 'shrink' = 'expand',
) {
const { top, left, bottom, right } = margin1;
const operation = mode === 'expand' ? Math.max : Math.min;
return {
bottom: mergeOneSide(operation, bottom, margin2.bottom),
left: mergeOneSide(operation, left, margin2.left),
right: mergeOneSide(operation, right, margin2.right),
top: mergeOneSide(operation, top, margin2.top),
};
}
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