304 lines
9.2 KiB
JavaScript
304 lines
9.2 KiB
JavaScript
/**
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* ext-polygon.js
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*
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*
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* @copyright 2010 CloudCanvas, Inc. All rights reserved
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*
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*/
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export default {
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name: 'polygon',
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async init (S) {
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const svgEditor = this;
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const svgCanvas = svgEditor.canvas;
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const {$, importLocale} = S, // {svgcontent}
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// addElem = svgCanvas.addSVGElementFromJson,
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editingitex = false;
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const strings = await importLocale();
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let selElems,
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// svgdoc = S.svgroot.parentNode.ownerDocument,
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// newFOG, newFOGParent, newDef, newImageName, newMaskID, modeChangeG,
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// edg = 0,
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// undoCommand = 'Not image';
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started, newFO;
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// const ccZoom;
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// const wEl, hEl;
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// const wOffset, hOffset;
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// const ccRBG;
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// const ccOpacity;
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// const brushW, brushH;
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// const ccDebug = document.getElementById('debugpanel');
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/* const properlySourceSizeTextArea = function(){
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// TODO: remove magic numbers here and get values from CSS
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const height = $('#svg_source_container').height() - 80;
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$('#svg_source_textarea').css('height', height);
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}; */
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/**
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* @param {boolean} on
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* @returns {undefined}
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*/
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function showPanel (on) {
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let fcRules = $('#fc_rules');
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if (!fcRules.length) {
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fcRules = $('<style id="fc_rules"></style>').appendTo('head');
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}
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fcRules.text(!on ? '' : ' #tool_topath { display: none !important; }');
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$('#polygon_panel').toggle(on);
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}
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/*
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function toggleSourceButtons(on){
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$('#tool_source_save, #tool_source_cancel').toggle(!on);
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$('#polygon_save, #polygon_cancel').toggle(on);
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}
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*/
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/**
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* @param {string} attr
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* @param {string|Float} val
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* @returns {undefined}
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*/
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function 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
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* @returns {Float}
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*/
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function cot (n) {
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return 1 / Math.tan(n);
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}
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/**
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* @param {Float} n
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* @returns {Float}
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*/
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function sec (n) {
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return 1 / Math.cos(n);
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}
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/**
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* Obtained from http://code.google.com/p/passenger-top/source/browse/instiki/public/svg-edit/editor/extensions/ext-itex.js?r=3
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* This function sets the content of of the currently-selected foreignObject element,
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* based on the itex contained in string.
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* @param {string} tex The itex text.
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* @returns {boolean} This function returns false if the set was unsuccessful, true otherwise.
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*/
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/*
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function setItexString(tex) {
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const mathns = 'http://www.w3.org/1998/Math/MathML',
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xmlnsns = 'http://www.w3.org/2000/xmlns/',
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ajaxEndpoint = '../../itex';
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const elt = selElems[0];
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try {
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const math = svgdoc.createElementNS(mathns, 'math');
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math.setAttributeNS(xmlnsns, 'xmlns', mathns);
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math.setAttribute('display', 'inline');
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const semantics = document.createElementNS(mathns, 'semantics');
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const annotation = document.createElementNS(mathns, 'annotation');
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annotation.setAttribute('encoding', 'application/x-tex');
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annotation.textContent = tex;
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const mrow = document.createElementNS(mathns, 'mrow');
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semantics.append(mrow, annotation);
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math.append(semantics);
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// make an AJAX request to the server, to get the MathML
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$.post(ajaxEndpoint, {tex, display: 'inline'}, function(data){
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const children = data.documentElement.childNodes;
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while (children.length > 0) {
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mrow.append(svgdoc.adoptNode(children[0], true));
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}
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svgCanvas.sanitizeSvg(math);
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svgCanvas.call('changed', [elt]);
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});
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elt.firstChild.replaceWith(math);
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svgCanvas.call('changed', [elt]);
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svgCanvas.clearSelection();
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} catch(e) {
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console.log(e);
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return false;
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}
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return true;
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}
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*/
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const buttons = [{
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id: 'tool_polygon',
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icon: svgEditor.curConfig.extIconsPath + 'polygon.png',
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type: 'mode',
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position: 11,
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events: {
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click () {
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svgCanvas.setMode('polygon');
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showPanel(true);
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}
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}
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}];
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const contextTools = [{
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type: 'input',
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panel: 'polygon_panel',
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id: 'polySides',
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size: 3,
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defval: 5,
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events: {
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change () {
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setAttr('sides', this.value);
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}
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}
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}];
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return {
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name: strings.name,
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svgicons: svgEditor.curConfig.extIconsPath + 'polygon-icons.svg',
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buttons: strings.buttons.map((button, i) => {
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return Object.assign(buttons[i], button);
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}),
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context_tools: strings.contextTools.map((contextTool, i) => {
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return Object.assign(contextTools[i], contextTool);
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}),
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callback () {
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$('#polygon_panel').hide();
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const endChanges = function () {
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// Todo: Missing?
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};
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// TODO: Needs to be done after orig icon loads
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setTimeout(function () {
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// Create source save/cancel buttons
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/* const save = */ $('#tool_source_save').clone().hide().attr('id', 'polygon_save').unbind().appendTo('#tool_source_back').click(function () {
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if (!editingitex) {
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return;
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}
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// Todo: Uncomment the setItexString() function above and handle ajaxEndpoint?
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/*
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if (!setItexString($('#svg_source_textarea').val())) {
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const ok = await $.confirm('Errors found. Revert to original?', function (ok) {
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if (!ok) {
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return false;
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}
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endChanges();
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} else { */
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endChanges();
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// }
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// setSelectMode();
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});
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/* const cancel = */ $('#tool_source_cancel').clone().hide().attr('id', 'polygon_cancel').unbind().appendTo('#tool_source_back').click(function () {
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endChanges();
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});
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}, 3000);
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},
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mouseDown (opts) {
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if (svgCanvas.getMode() !== 'polygon') {
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return undefined;
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}
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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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mouseMove (opts) {
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if (!started || svgCanvas.getMode() !== 'polygon') {
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return undefined;
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}
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// const e = opts.event;
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const c = $(newFO).attr(['cx', 'cy', 'sides', 'orient', 'fill', 'strokecolor', 'strokeWidth']);
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let x = opts.mouse_x;
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let y = opts.mouse_y;
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const {cx, cy, fill, strokecolor, strokeWidth, sides} = c, // {orient} = c,
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edg = (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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// newFO.setAttribute('transform', 'rotate(-90)');
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// const shape = newFO.getAttribute('shape');
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// newFO.append(poly);
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// DrawPoly(cx, cy, sides, edg, orient);
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return {
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started: true
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};
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},
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mouseUp (opts) {
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if (svgCanvas.getMode() !== 'polygon') {
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return undefined;
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}
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const attrs = $(newFO).attr('edge');
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const keep = (attrs.edge !== '0');
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// svgCanvas.addToSelection([newFO], true);
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return {
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keep,
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element: newFO
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};
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},
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selectedChanged (opts) {
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// Use this to update the current selected elements
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selElems = opts.elems;
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let i = selElems.length;
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while (i--) {
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const elem = selElems[i];
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if (elem && elem.getAttribute('shape') === 'regularPoly') {
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if (opts.selectedElement && !opts.multiselected) {
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$('#polySides').val(elem.getAttribute('sides'));
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showPanel(true);
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} else {
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showPanel(false);
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}
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} else {
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showPanel(false);
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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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