merge poly/star into a single extension
This commit is contained in:
JFH
347
src/editor/extensions/ext-polystar/ext-polystar.js
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347
src/editor/extensions/ext-polystar/ext-polystar.js
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/**
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* @file ext-polystar.js
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*
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*
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* @copyright 2010 CloudCanvas, Inc. All rights reserved
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* @copyright 2021 Optimistik SAS, Inc. All rights reserved
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* @license MIT
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*
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*/
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import { loadExtensionTranslation } from "../../locale.js";
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const name = "polystar";
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export default {
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name,
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async init(_S) {
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const svgEditor = this;
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const { svgCanvas } = svgEditor;
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const { $id } = svgCanvas;
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let selElems;
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let started;
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let newFO;
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await loadExtensionTranslation(svgEditor, name);
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/**
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* @param {boolean} on true=display
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* @param {string} tool "star" or "polygone"
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* @returns {void}
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*/
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const showPanel = (on, tool) => {
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$id(`${tool}_panel`).style.display = on ? "block" : "none";
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};
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/**
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*
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* @param {string} attr attribute to change
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* @param {string|Float} val new value
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* @returns {void}
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*/
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const setAttr = (attr, val) => {
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svgCanvas.changeSelectedAttribute(attr, val);
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svgCanvas.call("changed", selElems);
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};
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/**
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* @param {Float} n angle
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* @return {Float} cotangeante
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*/
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const cot = (n) => 1 / Math.tan(n);
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/**
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* @param {Float} n angle
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* @returns {Float} sec
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*/
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const sec = (n) => 1 / Math.cos(n);
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return {
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name: svgEditor.i18next.t(`${name}:name`),
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// The callback should be used to load the DOM with the appropriate UI items
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callback() {
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// Add the button and its handler(s)
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// Note: the star extension needs to be loaded before the polygon extension
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const fbtitle = svgEditor.i18next.t(`${name}:title`);
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const title_star = svgEditor.i18next.t(`${name}:buttons.0.title`);
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const title_polygon = svgEditor.i18next.t(`${name}:buttons.1.title`);
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const buttonTemplate = document.createElement("template");
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// eslint-disable-next-line no-unsanitized/property
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buttonTemplate.innerHTML = `
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<se-flyingbutton id="tools_polygon" title="${fbtitle}">
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<se-button id="tool_star" title="${title_star}" src="./images/star.svg">
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</se-button>
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<se-button id="tool_polygon" title="${title_polygon}" src="./images/polygon.svg">
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</se-button>
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</se-flyingbutton>
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`;
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$id("tools_left").append(buttonTemplate.content.cloneNode(true));
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// handler
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$id("tool_star").addEventListener("click", () => {
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if (this.leftPanel.updateLeftPanel("tool_star")) {
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svgCanvas.setMode("star");
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showPanel(true, "star");
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showPanel(false, "polygon");
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}
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});
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$id("tool_polygon").addEventListener("click", () => {
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if (this.leftPanel.updateLeftPanel("tool_polygon")) {
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svgCanvas.setMode("polygon");
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showPanel(true, "polygon");
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showPanel(false, "star");
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}
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});
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const label0 = svgEditor.i18next.t(`${name}:contextTools.0.label`);
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const title0 = svgEditor.i18next.t(`${name}:contextTools.0.title`);
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const label1 = svgEditor.i18next.t(`${name}:contextTools.1.label`);
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const title1 = svgEditor.i18next.t(`${name}:contextTools.1.title`);
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const label2 = svgEditor.i18next.t(`${name}:contextTools.2.label`);
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const title2 = svgEditor.i18next.t(`${name}:contextTools.2.title`);
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const label3 = svgEditor.i18next.t(`${name}:contextTools.3.label`);
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const title3 = svgEditor.i18next.t(`${name}:contextTools.3.title`);
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// Add the context panel and its handler(s)
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const panelTemplate = document.createElement("template");
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// eslint-disable-next-line no-unsanitized/property
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panelTemplate.innerHTML = `
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<div id="star_panel">
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<se-spin-input id="starNumPoints" label="${label0}" min=1 step=1 value=5 title="${title0}">
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</se-spin-input>
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<se-spin-input id="RadiusMultiplier" label="${label1}" min=1 step=2.5 value=3 title="${title1}">
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</se-spin-input>
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<se-spin-input id="radialShift" min=0 step=1 value=0 label="${label2}" title="${title2}">
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</se-spin-input>
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</div>
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<div id="polygon_panel">
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<se-spin-input size="3" id="polySides" min=1 step=1 value=5 label="${label3}" title="${title3}">
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</se-spin-input>
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</div>
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`;
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//add handlers for the panel
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$id("tools_top").appendChild(panelTemplate.content.cloneNode(true));
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// don't display the panels on start
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showPanel(false, "star");
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showPanel(false, "polygon");
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$id("starNumPoints").addEventListener("change", (event) => {
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setAttr("point", event.target.value);
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});
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$id("RadiusMultiplier").addEventListener("change", (event) => {
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setAttr("starRadiusMultiplier", event.target.value);
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});
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$id("radialShift").addEventListener("change", (event) => {
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setAttr("radialshift", event.target.value);
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});
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$id("polySides").addEventListener("change", (event) => {
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setAttr("sides", event.target.value);
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});
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},
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mouseDown(opts) {
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if (svgCanvas.getMode() === "star") {
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const rgb = svgCanvas.getColor("fill");
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const sRgb = svgCanvas.getColor("stroke");
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const sWidth = svgCanvas.getStrokeWidth();
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started = true;
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newFO = svgCanvas.addSVGElementFromJson({
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element: "polygon",
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attr: {
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cx: opts.start_x,
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cy: opts.start_y,
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id: svgCanvas.getNextId(),
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shape: "star",
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point: document.getElementById("starNumPoints").value,
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r: 0,
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radialshift: document.getElementById("radialShift").value,
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r2: 0,
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orient: "point",
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fill: rgb,
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strokecolor: sRgb,
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strokeWidth: sWidth
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}
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});
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return {
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started: true
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};
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}
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if (svgCanvas.getMode() === "polygon") {
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// const e = opts.event;
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const rgb = svgCanvas.getColor("fill");
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// const ccRgbEl = rgb.substring(1, rgb.length);
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const sRgb = svgCanvas.getColor("stroke");
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// ccSRgbEl = sRgb.substring(1, rgb.length);
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const sWidth = svgCanvas.getStrokeWidth();
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started = true;
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newFO = svgCanvas.addSVGElementFromJson({
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element: "polygon",
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attr: {
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cx: opts.start_x,
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cy: opts.start_y,
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id: svgCanvas.getNextId(),
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shape: "regularPoly",
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sides: document.getElementById("polySides").value,
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orient: "x",
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edge: 0,
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fill: rgb,
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strokecolor: sRgb,
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strokeWidth: sWidth
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}
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});
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return {
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started: true
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};
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}
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return undefined;
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},
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mouseMove(opts) {
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if (!started) {
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return undefined;
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}
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if (svgCanvas.getMode() === "star") {
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const cx = Number(newFO.getAttribute("cx"));
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const cy = Number(newFO.getAttribute("cy"));
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const point = Number(newFO.getAttribute("point"));
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const orient = newFO.getAttribute("orient");
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const fill = newFO.getAttribute("fill");
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const strokecolor = newFO.getAttribute("strokecolor");
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const strokeWidth = Number(newFO.getAttribute("strokeWidth"));
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const radialshift = Number(newFO.getAttribute("radialshift"));
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let x = opts.mouse_x;
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let y = opts.mouse_y;
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const circumradius =
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Math.sqrt((x - cx) * (x - cx) + (y - cy) * (y - cy)) / 1.5;
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const inradius =
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circumradius / document.getElementById("RadiusMultiplier").value;
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newFO.setAttribute("r", circumradius);
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newFO.setAttribute("r2", inradius);
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let polyPoints = "";
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for (let s = 0; point >= s; s++) {
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let angle = 2.0 * Math.PI * (s / point);
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if (orient === "point") {
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angle -= Math.PI / 2;
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} else if (orient === "edge") {
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angle = angle + Math.PI / point - Math.PI / 2;
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}
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x = circumradius * Math.cos(angle) + cx;
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y = circumradius * Math.sin(angle) + cy;
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polyPoints += x + "," + y + " ";
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if (!isNaN(inradius)) {
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angle = 2.0 * Math.PI * (s / point) + Math.PI / point;
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if (orient === "point") {
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angle -= Math.PI / 2;
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} else if (orient === "edge") {
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angle = angle + Math.PI / point - Math.PI / 2;
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}
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angle += radialshift;
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x = inradius * Math.cos(angle) + cx;
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y = inradius * Math.sin(angle) + cy;
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polyPoints += x + "," + y + " ";
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}
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}
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newFO.setAttribute("points", polyPoints);
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newFO.setAttribute("fill", fill);
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newFO.setAttribute("stroke", strokecolor);
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newFO.setAttribute("stroke-width", strokeWidth);
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/* const shape = */ newFO.getAttribute("shape");
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return {
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started: true
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};
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}
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if (svgCanvas.getMode() === "polygon") {
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const cx = Number(newFO.getAttribute("cx"));
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const cy = Number(newFO.getAttribute("cy"));
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const sides = Number(newFO.getAttribute("sides"));
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// const orient = newFO.getAttribute('orient');
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const fill = newFO.getAttribute("fill");
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const strokecolor = newFO.getAttribute("strokecolor");
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const strokeWidth = Number(newFO.getAttribute("strokeWidth"));
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let x = opts.mouse_x;
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let y = opts.mouse_y;
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const edg =
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Math.sqrt((x - cx) * (x - cx) + (y - cy) * (y - cy)) / 1.5;
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newFO.setAttribute("edge", edg);
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const inradius = (edg / 2) * cot(Math.PI / sides);
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const circumradius = inradius * sec(Math.PI / sides);
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let points = "";
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for (let s = 0; sides >= s; s++) {
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const angle = (2.0 * Math.PI * s) / sides;
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x = circumradius * Math.cos(angle) + cx;
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y = circumradius * Math.sin(angle) + cy;
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points += x + "," + y + " ";
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}
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// const poly = newFO.createElementNS(NS.SVG, 'polygon');
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newFO.setAttribute("points", points);
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newFO.setAttribute("fill", fill);
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newFO.setAttribute("stroke", strokecolor);
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newFO.setAttribute("stroke-width", strokeWidth);
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return {
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started: true
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};
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}
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return undefined;
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},
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mouseUp() {
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if (svgCanvas.getMode() === "star") {
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const r = newFO.getAttribute("r");
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return {
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keep: r !== "0",
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element: newFO
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};
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}
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if (svgCanvas.getMode() === "polygon") {
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const edge = newFO.getAttribute("edge");
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const keep = edge !== "0";
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// svgCanvas.addToSelection([newFO], true);
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return {
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keep,
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element: newFO
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};
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}
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return undefined;
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},
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selectedChanged(opts) {
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// Use this to update the current selected elements
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selElems = opts.elems;
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let i = selElems.length;
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while (i--) {
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const elem = selElems[i];
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if (elem && elem.getAttribute("shape") === "star") {
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if (opts.selectedElement && !opts.multiselected) {
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$id("starNumPoints").value = elem.getAttribute("point");
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$id("radialShift").value = elem.getAttribute("radialshift");
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showPanel(true, "star");
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} else {
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showPanel(false, "star");
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}
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} else if (elem && elem.getAttribute("shape") === "regularPoly") {
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if (opts.selectedElement && !opts.multiselected) {
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$id("polySides").value = elem.getAttribute("sides");
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showPanel(true, "polygon");
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} else {
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showPanel(false, "polygon");
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}
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} else {
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showPanel(false, "star");
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showPanel(false, "polygon");
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}
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}
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},
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elementChanged(_opts) {
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// const elem = opts.elems[0];
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}
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};
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}
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};
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