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19353a9423
Eslint prettier config * config eslint + manual fixes * Merge branch 'develop' into eslint-prettier-config * fixes eslint web2d Approved-by: Paulo Veiga
113 lines
3.2 KiB
JavaScript
113 lines
3.2 KiB
JavaScript
/*
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* Copyright [2021] [wisemapping]
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*
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* Licensed under WiseMapping Public License, Version 1.0 (the "License").
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* It is basically the Apache License, Version 2.0 (the "License") plus the
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* "powered by wisemapping" text requirement on every single page;
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the license at
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*
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* http://www.wisemapping.org/license
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import { $defined } from '@wisemapping/core-js';
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import ElementPeer from './ElementPeer';
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import Point from '../../Point';
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class ArrowPeer extends ElementPeer {
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constructor() {
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const svgElement = window.document.createElementNS(ElementPeer.svgNamespace, 'path');
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super(svgElement);
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this._style = {};
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this._controlPoint = new Point();
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this._fromPoint = new Point();
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}
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setFrom(x, y) {
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this._fromPoint.x = x;
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this._fromPoint.y = y;
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this._redraw();
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}
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setControlPoint(point) {
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this._controlPoint = point;
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this._redraw();
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}
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setStrokeColor(color) {
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this.setStroke(null, null, color, null);
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}
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setStrokeWidth(width) {
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this.setStroke(width);
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}
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setDashed(isDashed, length, spacing) {
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if ($defined(isDashed) && isDashed && $defined(length) && $defined(spacing)) {
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this._native.setAttribute('stroke-dasharray', `${length}${spacing}`);
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} else {
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this._native.setAttribute('stroke-dasharray', '');
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}
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}
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_updateStyle() {
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let style = '';
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for (const key in this._style) {
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if (Object.prototype.hasOwnProperty.call(this._style, key)) {
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style += `${key}:${this._style[key]} `;
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}
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}
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this._native.setAttribute('style', style);
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}
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_redraw() {
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let x;
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let y;
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let xp;
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let yp;
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if (
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$defined(this._fromPoint.x) &&
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$defined(this._fromPoint.y) &&
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$defined(this._controlPoint.x) &&
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$defined(this._controlPoint.y)
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) {
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if (this._controlPoint.y === 0) this._controlPoint.y = 1;
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const y0 = this._controlPoint.y;
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const x0 = this._controlPoint.x;
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const x2 = x0 + y0;
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const y2 = y0 - x0;
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const x3 = x0 - y0;
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const y3 = y0 + x0;
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const m = y2 / x2;
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const mp = y3 / x3;
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const l = 6;
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// eslint-disable-next-line no-restricted-properties
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const { pow } = Math;
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x = x2 === 0 ? 0 : Math.sqrt(pow(l, 2) / (1 + pow(m, 2)));
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x *= Math.sign(x2);
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y = x2 === 0 ? l * Math.sign(y2) : m * x;
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xp = x3 === 0 ? 0 : Math.sqrt(pow(l, 2) / (1 + pow(mp, 2)));
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xp *= Math.sign(x3);
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yp = x3 === 0 ? l * Math.sign(y3) : mp * xp;
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const path =
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`M${this._fromPoint.x},${this._fromPoint.y} ` +
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`L${x + this._fromPoint.x},${y + this._fromPoint.y} M${this._fromPoint.x},${
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this._fromPoint.y
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} ` +
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`L${xp + this._fromPoint.x},${yp + this._fromPoint.y}`;
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this._native.setAttribute('d', path);
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}
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}
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}
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export default ArrowPeer;
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