diff --git a/src/core/operations/ScaleImage.mjs b/src/core/operations/ScaleImage.mjs deleted file mode 100644 index 8db50fea..00000000 --- a/src/core/operations/ScaleImage.mjs +++ /dev/null @@ -1,94 +0,0 @@ -/** - * @author j433866 [j433866@gmail.com] - * @copyright Crown Copyright 2019 - * @license Apache-2.0 - */ - -import Operation from "../Operation"; -import OperationError from "../errors/OperationError"; -import Magic from "../lib/Magic"; -import { toBase64 } from "../lib/Base64"; -import jimp from "jimp"; - -/** - * Scale Image operation - */ -class ScaleImage extends Operation { - - /** - * ScaleImage constructor - */ - constructor() { - super(); - - this.name = "Scale Image"; - this.module = "Image"; - this.description = "Uniformly scale an image by a specified factor."; - this.infoURL = ""; - this.inputType = "byteArray"; - this.outputType = "byteArray"; - this.presentType = "html"; - this.args = [ - { - name: "Scale factor (percent)", - type: "number", - value: 100 - } - ]; - } - - /** - * @param {byteArray} input - * @param {Object[]} args - * @returns {byteArray} - */ - run(input, args) { - const [scaleFactor] = args; - const type = Magic.magicFileType(input); - - if (type && type.mime.indexOf("image") === 0){ - return new Promise((resolve, reject) => { - jimp.read(Buffer.from(input)) - .then(image => { - image - .scale((scaleFactor / 100)) - .getBuffer(jimp.AUTO, (error, result) => { - if (error){ - reject(new OperationError("Error getting the new image buffer.")); - } else { - resolve([...result]); - } - }); - }) - .catch(err => { - reject(new OperationError("Error reading the input image.")); - }); - }); - } else { - throw new OperationError("Invalid file type."); - } - } - - /** - * Displays the scaled image using HTML for web apps - * @param {byteArray} data - * @returns {html} - */ - present(data) { - if (!data.length) return ""; - - let dataURI = "data:"; - const type = Magic.magicFileType(data); - if (type && type.mime.indexOf("image") === 0){ - dataURI += type.mime + ";"; - } else { - throw new OperationError("Invalid file type"); - } - dataURI += "base64," + toBase64(data); - - return ""; - } - -} - -export default ScaleImage;