swOperation/node_modules/@antv/g2/esm/shape/connector/connector.js

var __rest = (this && this.__rest) || function (s, e) {
    var t = {};
    for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p) && e.indexOf(p) < 0)
        t[p] = s[p];
    if (s != null && typeof Object.getOwnPropertySymbols === "function")
        for (var i = 0, p = Object.getOwnPropertySymbols(s); i < p.length; i++) {
            if (e.indexOf(p[i]) < 0 && Object.prototype.propertyIsEnumerable.call(s, p[i]))
                t[p[i]] = s[p[i]];
        }
    return t;
};
import { Marker } from '@antv/gui';
import { line as d3line } from 'd3-shape';
import { createElement } from '../../utils/createElement';
import { isTranspose } from '../../utils/coordinate';
import { subObject } from '../../utils/helper';
import { select } from '../../utils/selection';
import { applyStyle, getShapeTheme } from '../utils';
function inferSymbol(x, y, r) {
    return [['M', x, y], ['L', x + 2 * r, y - r], ['L', x + 2 * r, y + r], ['Z']];
}
/**
 * @todo support polar later.
 */
function inferConnectorPath(points) {
    return d3line()
        .x((d) => d[0])
        .y((d) => d[1])(points);
}
const ConnectorPath = createElement((g) => {
    // Do not copy className to path.
    const _a = g.attributes, { points, class: className, endMarker = true, direction } = _a, rest = __rest(_a, ["points", "class", "endMarker", "direction"]);
    const markerStyle = subObject(rest, 'endMarker');
    const path = inferConnectorPath(points);
    select(g)
        .maybeAppend('connector', 'path')
        .style('path', path)
        .style('markerEnd', endMarker
        ? new Marker({
            className: 'marker',
            style: Object.assign(Object.assign({}, markerStyle), { symbol: inferSymbol }),
        })
        : null)
        .call(applyStyle, rest);
});
function getPoints(coordinate, points, offset, length1 = 0) {
    const [[x0, y0], [x1, y1]] = points;
    if (isTranspose(coordinate)) {
        const OFFSET = offset;
        const X0 = x0 + OFFSET;
        const X1 = x1 + OFFSET;
        const X = X0 + length1;
        return [
            [X0, y0],
            [X, y0],
            [X, y1],
            [X1, y1],
        ];
    }
    const OFFSET = -offset;
    const Y0 = y0 + OFFSET;
    const Y1 = y1 + OFFSET;
    const Y = Y0 + -length1;
    return [
        [x0, Y0],
        [x0, Y],
        [x1, Y],
        [x1, Y1],
    ];
}
export const Connector = (options) => {
    const { offset = 0, connectLength1: length1 } = options, style = __rest(options, ["offset", "connectLength1"]);
    return (points, value, coordinate, theme) => {
        const { mark, shape, defaultShape } = value;
        const _a = getShapeTheme(theme, mark, shape, defaultShape), { defaultColor, connectLength1 = length1 } = _a, shapeTheme = __rest(_a, ["defaultColor", "connectLength1"]);
        const { color, transform } = value;
        const P = getPoints(coordinate, points, offset, connectLength1);
        return select(new ConnectorPath())
            .call(applyStyle, shapeTheme)
            .style('points', P)
            .style('stroke', color || defaultColor)
            .style('transform', transform)
            .call(applyStyle, style)
            .node();
    };
};
Connector.props = {
    defaultMarker: 'line',
    defaultEnterAnimation: 'fadeIn',
    defaultUpdateAnimation: 'morphing',
    defaultExitAnimation: 'fadeOut',
};
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