var svgEditorExtension_grid = (function () { 'use strict'; function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { Promise.resolve(value).then(_next, _throw); } } function _asyncToGenerator(fn) { return function () { var self = this, args = arguments; return new Promise(function (resolve, reject) { var gen = fn.apply(self, args); function _next(value) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value); } function _throw(err) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err); } _next(undefined); }); }; } /** * ext-grid.js * * @license Apache-2.0 * * @copyright 2010 Redou Mine, 2010 Alexis Deveria * */ var extGrid = { name: 'grid', init: function () { var _init = _asyncToGenerator( /*#__PURE__*/ regeneratorRuntime.mark(function _callee(_ref) { var $, NS, getTypeMap, importLocale, strings, svgEditor, svgCanvas, svgdoc, assignAttributes, hcanvas, canvBG, units, intervals, showGrid, canvasGrid, gridDefs, gridPattern, gridimg, gridBox, updateGrid, gridUpdate, buttons; return regeneratorRuntime.wrap(function _callee$(_context) { while (1) { switch (_context.prev = _context.next) { case 0: gridUpdate = function _ref3() { if (showGrid) { updateGrid(svgCanvas.getZoom()); } $('#canvasGrid').toggle(showGrid); $('#view_grid').toggleClass('push_button_pressed tool_button'); }; updateGrid = function _ref2(zoom) { // TODO: Try this with elements, then compare performance difference var unit = units[svgEditor.curConfig.baseUnit]; // 1 = 1px var uMulti = unit * zoom; // Calculate the main number interval var rawM = 100 / uMulti; var multi = 1; intervals.some(function (num) { multi = num; return rawM <= num; }); var bigInt = multi * uMulti; // Set the canvas size to the width of the container hcanvas.width = bigInt; hcanvas.height = bigInt; var ctx = hcanvas.getContext('2d'); var curD = 0.5; var part = bigInt / 10; ctx.globalAlpha = 0.2; ctx.strokeStyle = svgEditor.curConfig.gridColor; for (var i = 1; i < 10; i++) { var subD = Math.round(part * i) + 0.5; // const lineNum = (i % 2)?12:10; var lineNum = 0; ctx.moveTo(subD, bigInt); ctx.lineTo(subD, lineNum); ctx.moveTo(bigInt, subD); ctx.lineTo(lineNum, subD); } ctx.stroke(); ctx.beginPath(); ctx.globalAlpha = 0.5; ctx.moveTo(curD, bigInt); ctx.lineTo(curD, 0); ctx.moveTo(bigInt, curD); ctx.lineTo(0, curD); ctx.stroke(); var datauri = hcanvas.toDataURL('image/png'); gridimg.setAttribute('width', bigInt); gridimg.setAttribute('height', bigInt); gridimg.parentNode.setAttribute('width', bigInt); gridimg.parentNode.setAttribute('height', bigInt); svgCanvas.setHref(gridimg, datauri); }; $ = _ref.$, NS = _ref.NS, getTypeMap = _ref.getTypeMap, importLocale = _ref.importLocale; _context.next = 5; return importLocale(); case 5: strings = _context.sent; svgEditor = this; svgCanvas = svgEditor.canvas; svgdoc = document.getElementById('svgcanvas').ownerDocument, assignAttributes = svgCanvas.assignAttributes, hcanvas = document.createElement('canvas'), canvBG = $('#canvasBackground'), units = getTypeMap(), intervals = [0.01, 0.1, 1, 10, 100, 1000]; showGrid = svgEditor.curConfig.showGrid || false; $(hcanvas).hide().appendTo('body'); canvasGrid = svgdoc.createElementNS(NS.SVG, 'svg'); assignAttributes(canvasGrid, { id: 'canvasGrid', width: '100%', height: '100%', x: 0, y: 0, overflow: 'visible', display: 'none' }); canvBG.append(canvasGrid); gridDefs = svgdoc.createElementNS(NS.SVG, 'defs'); // grid-pattern gridPattern = svgdoc.createElementNS(NS.SVG, 'pattern'); assignAttributes(gridPattern, { id: 'gridpattern', patternUnits: 'userSpaceOnUse', x: 0, // -(value.strokeWidth / 2), // position for strokewidth y: 0, // -(value.strokeWidth / 2), // position for strokewidth width: 100, height: 100 }); gridimg = svgdoc.createElementNS(NS.SVG, 'image'); assignAttributes(gridimg, { x: 0, y: 0, width: 100, height: 100 }); gridPattern.append(gridimg); gridDefs.append(gridPattern); $('#canvasGrid').append(gridDefs); // grid-box gridBox = svgdoc.createElementNS(NS.SVG, 'rect'); assignAttributes(gridBox, { width: '100%', height: '100%', x: 0, y: 0, 'stroke-width': 0, stroke: 'none', fill: 'url(#gridpattern)', style: 'pointer-events: none; display:visible;' }); $('#canvasGrid').append(gridBox); /** * * @param {Float} zoom * @returns {void} */ buttons = [{ id: 'view_grid', icon: svgEditor.curConfig.extIconsPath + 'grid.png', type: 'context', panel: 'editor_panel', events: { click: function click() { svgEditor.curConfig.showGrid = showGrid = !showGrid; gridUpdate(); } } }]; return _context.abrupt("return", { name: strings.name, svgicons: svgEditor.curConfig.extIconsPath + 'grid-icon.xml', zoomChanged: function zoomChanged(zoom) { if (showGrid) { updateGrid(zoom); } }, callback: function callback() { if (showGrid) { gridUpdate(); } }, buttons: strings.buttons.map(function (button, i) { return Object.assign(buttons[i], button); }) }); case 27: case "end": return _context.stop(); } } }, _callee, this); })); function init(_x) { return _init.apply(this, arguments); } return init; }() }; return extGrid; }());