superset SharedLabelColorSingleton 源码
superset SharedLabelColorSingleton 代码
文件路径：/superset-frontend/packages/superset-ui-core/src/color/SharedLabelColorSingleton.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 { CategoricalColorNamespace } from '.';
import { makeSingleton } from '../utils';
export enum SharedLabelColorSource {
dashboard,
explore,
}
export class SharedLabelColor {
sliceLabelMap: Map<number, string[]>;
colorMap: Map<string, string>;
source: SharedLabelColorSource;
constructor() {
// { sliceId1: [label1, label2, ...], sliceId2: [label1, label2, ...] }
this.sliceLabelMap = new Map();
this.colorMap = new Map();
this.source = SharedLabelColorSource.dashboard;
}
updateColorMap(colorNamespace?: string, colorScheme?: string) {
const categoricalNamespace =
CategoricalColorNamespace.getNamespace(colorNamespace);
const newColorMap = new Map();
this.colorMap.clear();
this.sliceLabelMap.forEach(labels => {
const colorScale = categoricalNamespace.getScale(colorScheme);
labels.forEach(label => {
const newColor = colorScale(label);
newColorMap.set(label, newColor);
});
});
this.colorMap = newColorMap;
}
getColorMap() {
return this.colorMap;
}
addSlice(label: string, color: string, sliceId?: number) {
if (
this.source !== SharedLabelColorSource.dashboard ||
sliceId === undefined
)
return;
const labels = this.sliceLabelMap.get(sliceId) || [];
if (!labels.includes(label)) {
labels.push(label);
this.sliceLabelMap.set(sliceId, labels);
}
this.colorMap.set(label, color);
}
removeSlice(sliceId: number) {
if (this.source !== SharedLabelColorSource.dashboard) return;
this.sliceLabelMap.delete(sliceId);
const newColorMap = new Map();
this.sliceLabelMap.forEach(labels => {
labels.forEach(label => {
newColorMap.set(label, this.colorMap.get(label));
});
});
this.colorMap = newColorMap;
}
reset() {
const copyColorMap = new Map(this.colorMap);
copyColorMap.forEach((_, label) => {
this.colorMap.set(label, '');
});
}
clear() {
this.sliceLabelMap.clear();
this.colorMap.clear();
}
}
const getInstance = makeSingleton(SharedLabelColor);
export default getInstance;
相关信息
相关文章
superset CategoricalColorNamespace 源码
superset CategoricalColorScale 源码
superset CategoricalSchemeRegistrySingleton 源码
superset ColorSchemeRegistry 源码
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