89 lines
2.8 KiB
JavaScript
89 lines
2.8 KiB
JavaScript
'use strict'
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// Manages the SVG file
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function Manager (dotgrid) {
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// Create SVG parts
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this.el = document.createElementNS('http://www.w3.org/2000/svg', 'svg')
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this.el.setAttribute('xmlns', 'http://www.w3.org/2000/svg')
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this.el.setAttribute('baseProfile', 'full')
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this.el.setAttribute('version', '1.1')
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this.el.style.fill = 'none'
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this.layers = []
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this.install = function () {
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this.el.appendChild(this.layers[2] = document.createElementNS('http://www.w3.org/2000/svg', 'path'))
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this.el.appendChild(this.layers[1] = document.createElementNS('http://www.w3.org/2000/svg', 'path'))
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this.el.appendChild(this.layers[0] = document.createElementNS('http://www.w3.org/2000/svg', 'path'))
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}
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this.update = function () {
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this.el.setAttribute('width', (DOTGRID.tool.settings.size.width + 15) + 'px')
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this.el.setAttribute('height', (DOTGRID.tool.settings.size.height + 15) + 'px')
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this.el.style.width = (DOTGRID.tool.settings.size.width + 15)
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this.el.style.height = DOTGRID.tool.settings.size.height + 15
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const styles = DOTGRID.tool.styles
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const paths = DOTGRID.tool.paths()
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for (const id in this.layers) {
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let style = styles[id]
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let path = paths[id]
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let layer = this.layers[id]
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// Easter Egg
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if (DOTGRID.tool.settings.crest === true) {
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style = styles[0]
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path = paths[0]
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layer.setAttribute('transform', `rotate(${parseInt(id) * 120} ${(DOTGRID.tool.settings.size.width / 2) + 7.5} ${(DOTGRID.tool.settings.size.height / 2) + 15})`)
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}
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layer.style.strokeWidth = style.thickness
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layer.style.strokeLinecap = style.strokeLinecap
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layer.style.strokeLinejoin = style.strokeLinejoin
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layer.style.stroke = style.color
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layer.style.fill = style.fill
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layer.setAttribute('d', path)
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}
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}
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this.svg64 = function () {
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let xml = new XMLSerializer().serializeToString(this.el)
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let svg64 = btoa(xml)
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let b64Start = 'data:image/svg+xml;base64,'
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return b64Start + svg64
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}
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// Exporters
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this.toPNG = function (size = DOTGRID.tool.settings.size, callback) {
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this.update()
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let image64 = this.svg64()
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let img = new Image()
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let canvas = document.createElement('canvas')
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canvas.width = (size.width) * 2
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canvas.height = (size.height) * 2
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img.onload = function () {
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canvas.getContext('2d').drawImage(img, 0, 0, (size.width) * 2, (size.height) * 2)
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callback(canvas.toDataURL('image/png'), 'export.png')
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}
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img.src = image64
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}
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this.toSVG = function (callback) {
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this.update()
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const image64 = this.svg64()
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callback(image64, 'export.svg')
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}
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this.toGRID = function (callback) {
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this.update()
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const text = DOTGRID.tool.export()
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const file = new Blob([text], { type: 'text/plain' })
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callback(URL.createObjectURL(file), 'export.grid')
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}
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}
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