devexpress-richedit/lib/common/layout-formatter/table/grid-engine/columns.js

DevExpress Rich Text Editor is an advanced word-processing tool designed for working with rich text documents.

import { Errors } from '@devexpress/utils/lib/errors';
import { ListUtils } from '@devexpress/utils/lib/utils/list';
export class Columns {
    constructor(widths, positions) {
        this.width = widths;
        this.numColumns = widths.length;
        this.positions = positions;
        if (ListUtils.unsafeAnyOf(this.positions, (p) => isNaN(p) || p < 0))
            throw new Error(Errors.InternalException);
    }
    static fromIntervals(intervalsInfo) {
        const widths = ListUtils.map(intervalsInfo, (curr) => curr.width);
        let pos = 0;
        const positions = [0, ...widths.map(w => (pos += w, pos))];
        return new Columns(widths, positions);
    }
    static fromWidths(widths) {
        let pos = 0;
        const positions = [0, ...widths.map(w => (pos += w, pos))];
        return new Columns([...widths], positions);
    }
}