@visactor/vtable/es/scenegraph/group-creater/progress/default-width-height.js

canvas table width high performance

import { computeColWidth } from "../../layout/compute-col-width";

import { computeRowHeight } from "../../layout/compute-row-height";

const colSamplingNumber = 10, rowSamplingNumber = 10;

export function getDefaultWidth(table) {
    const {rowCount: rowCount, colCount: colCount} = table, widths = [], deltaCol = Math.max(1, Math.ceil(rowCount / 10)), deltaRow = Math.max(1, Math.ceil(colCount / 10));
    for (let col = 0; col < colCount; col += deltaCol) for (let row = 0; row < rowCount; row += deltaRow) widths.push(computeColWidth(col, row, row, table));
    return Math.ceil(widths.reduce(((a, b) => a + b), 0) / widths.length * 1.2);
}

export function getDefaultHeight(table) {
    const {rowCount: rowCount, colCount: colCount} = table, heights = [], deltaCol = Math.max(1, Math.ceil(rowCount / 10)), deltaRow = Math.max(1, Math.ceil(colCount / 10));
    for (let col = 0; col < colCount; col += deltaCol) for (let row = 0; row < rowCount; row += deltaRow) heights.push(computeRowHeight(row, col, col, table));
    return Math.ceil(heights.reduce(((a, b) => a + b), 0) / heights.length * 1.2);
}
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