pointvec/desktop/sources/scripts/source.js

73 lines
2.1 KiB
JavaScript

'use strict'
function Source (dotgrid) {
this.path = null
this.new = function () {
dotgrid.setZoom(1.0)
dotgrid.history.push(dotgrid.tool.layers)
dotgrid.clear()
this.path = null
}
this.open = function () {
if (!dialog) { return }
const paths = dialog.showOpenDialog({ properties: ['openFile'], filters: [{ name: 'Dotgrid Image', extensions: ['dot', 'grid'] }] })
if (!paths) { console.warn('Nothing to load'); return }
fs.readFile(paths[0], 'utf-8', (err, data) => {
if (err) { alert('An error ocurred reading the file :' + err.message); return }
this.load(paths[0], data)
})
}
this.load = function (path, data) {
if (!path || isJson(data) === false) { return }
const parsed = JSON.parse(`${data}`)
dotgrid.tool.replace(parsed)
this.path = path
}
this.save = function () {
if (dotgrid.tool.length() < 1) { console.warn('Nothing to save'); return }
if (this.canWrite() === true) {
this.write(this.path, dotgrid.tool.export())
} else {
dotgrid.manager.toGRID(grab)
}
}
this.canWrite = function () {
return fs && fs.existsSync(this.path)
}
this.write = function (path, data) {
console.log('Source', 'Writing ' + path)
fs.writeFile(path, data, (err) => {
if (err) { alert('An error ocurred updating the file' + err.message); console.warn(err) }
})
}
this.export = function () {
if (dotgrid.tool.length() < 1) { console.warn('Nothing to export'); return }
dotgrid.manager.toSVG(grab)
}
this.render = function () {
if (dotgrid.tool.length() < 1) { console.warn('Nothing to render'); return }
dotgrid.manager.toPNG({ width: dotgrid.tool.settings.size.width * 2, height: dotgrid.tool.settings.size.height * 2 }, grab)
}
function grab (base64, name) {
const link = document.createElement('a')
link.setAttribute('href', base64)
link.setAttribute('download', name)
link.dispatchEvent(new MouseEvent('click', { bubbles: true, cancelable: true, view: window }))
}
function isJson (text) { try { JSON.parse(text); return true } catch (error) { return false } }
}