65 lines
1.4 KiB
JavaScript
65 lines
1.4 KiB
JavaScript
const fs = require('fs')
|
|
const resizeImg = require('resize-img')
|
|
|
|
class Resize {
|
|
constructor (width, heigth) {
|
|
this.size = {
|
|
width: 128,
|
|
heigth: 128
|
|
}
|
|
|
|
if (width && heigth) {
|
|
this.setSize(width, heigth)
|
|
}
|
|
}
|
|
|
|
_createOutputFilename (input) {
|
|
return `${input}_${this.size.width}x${this.size.heigth}`
|
|
}
|
|
|
|
_resize (input, output, callback) {
|
|
fs.readFile(input, (err, data) => {
|
|
if (err) {
|
|
callback(err, null)
|
|
return false
|
|
}
|
|
|
|
resizeImg(data, this.size)
|
|
.then(buf => {
|
|
fs.writeFile(output, buf, (err) => {
|
|
if (err) {
|
|
callback(err, null)
|
|
return false
|
|
}
|
|
callback(null, { input: input, output: output, size: this.size })
|
|
})
|
|
})
|
|
.catch(callback)
|
|
})
|
|
}
|
|
|
|
setSize (width, heigth) {
|
|
this.size = {
|
|
width: width,
|
|
heigth: heigth
|
|
}
|
|
}
|
|
|
|
createThumbnail (file, callback) {
|
|
this.setSize(128, 128)
|
|
this._resize(file, this._createOutputFilename(file), callback)
|
|
}
|
|
|
|
createLargeImage (file, callback) {
|
|
this.setSize(1200, 900)
|
|
this._resize(file, this._createOutputFilename(file), callback)
|
|
}
|
|
|
|
resize (file, width, heigth, callback) {
|
|
this.setSize(width, heigth)
|
|
this._resize(file, this._createOutputFilename(file), callback)
|
|
}
|
|
}
|
|
|
|
module.exports = Resize
|