escpos-buffer - npm Package Compare versions

Comparing version 3.1.0 to 4.0.0

dist/connection/index.d.ts

 /// <reference types="node" />
 export { default as InMemory } from './InMemory';
 export { default as WebUSB } from './WebUSB';
-export { default as WebBluetooth } from './WebBluetooth';
 export interface Connection {
@@ -6,0 +5,0 @@ open(): Promise<void>;

dist/connection/index.js

 "use strict";
 Object.defineProperty(exports, "__esModule", { value: true });
-exports.WebBluetooth = exports.WebUSB = exports.InMemory = void 0;
+exports.WebUSB = exports.InMemory = void 0;
 var InMemory_1 = require("./InMemory");
@@ -8,4 +8,2 @@ Object.defineProperty(exports, "InMemory", { enumerable: true, get: function () { return InMemory_1.default; } });
 Object.defineProperty(exports, "WebUSB", { enumerable: true, get: function () { return WebUSB_1.default; } });
-var WebBluetooth_1 = require("./WebBluetooth");
-Object.defineProperty(exports, "WebBluetooth", { enumerable: true, get: function () { return WebBluetooth_1.default; } });
 //# sourceMappingURL=index.js.map

package.json

 {
   "name": "escpos-buffer",
-  "version": "3.1.0",
+  "version": "4.0.0",
   "description": "Library to generate buffer for thermal printers.",
@@ -32,4 +32,2 @@ "author": "GrandChef Team <[e-mail]>",
     "iconv-lite": "^0.6.3",
-    "pngjs": "^5.0.0",
-    "qrcode": "^1.5.1",
     "tslib": "^2.5.0"
@@ -40,3 +38,2 @@ },
     "@types/node": "^12.12.5",
-    "@types/pngjs": "^6.0.1",
     "@types/w3c-web-usb": "1.0.6",
@@ -43,0 +40,0 @@ "@types/web-bluetooth": "^0.0.16",

src/graphics/filter/BayerOrdered.ts

 import { Filter } from '.';
-import { PNG } from 'pngjs';
+import { ImageData } from '../Image';
 
 export default class BayerOrdered implements Filter {
-  process(image: PNG): PNG {
+  process(image: ImageData): ImageData {
     const width = image.width;
@@ -31,5 +31,4 @@ const height = image.height;
     }
-    image.data = new_data;
-    return image;
+    return { width, height, data: new_data };
   }
 }

src/graphics/filter/FloydSteinberg.ts

 import { Filter } from '.';
-import { PNG } from 'pngjs';
+import { ImageData } from '../Image';
 
 export default class FloydSteinberg implements Filter {
-  process(image: PNG): PNG {
+  process(image: ImageData): ImageData {
     const width = image.width;
@@ -51,5 +51,4 @@ const height = image.height;
     }
-    image.data = new_data;
-    return image;
+    return { width, height, data: new_data };
   }
 }

src/graphics/filter/index.ts

@@ -0,8 +1,9 @@
+import { ImageData } from '../Image';
+
 export { default as Threshold } from './Threshold';
 export { default as BayerOrdered } from './BayerOrdered';
 export { default as FloydSteinberg } from './FloydSteinberg';
-import { PNG } from 'pngjs';
 
 export interface Filter {
-  process(image: PNG): PNG;
+  process(imageData: ImageData): ImageData;
 }

src/graphics/filter/Threshold.ts

 import { Filter } from '.';
-import { PNG } from 'pngjs';
+import { ImageData } from '../Image';
 
 export default class Threshold implements Filter {
-  process(image: PNG): PNG {
+  process(image: ImageData): ImageData {
     const width = image.width;
@@ -23,5 +23,4 @@ const height = image.height;
     }
-    image.data = new_data;
-    return image;
+    return { width, height, data: new_data };
   }
 }

src/graphics/Image.ts

 import { Filter, FloydSteinberg } from './filter';
-import * as fs from 'fs';
-import { PNG } from 'pngjs';
 
+export interface ImageData {
+  readonly data: Buffer;
+  readonly height: number;
+  readonly width: number;
+}
+
 export default class Image {
@@ -11,33 +15,10 @@ data: Buffer;
 
-  constructor(
-    input: string | Buffer | PNG = null,
-    filter: Filter = new FloydSteinberg(),
-  ) {
-    if (input instanceof PNG) {
-      this.readImage(filter.process(input));
-    } else if (typeof input === 'string') {
-      this.loadImage(input, filter);
-    } else if (input) {
-      this.loadImageData(input, filter);
-    }
+  constructor(imageData: ImageData, filter: Filter = new FloydSteinberg()) {
+    this.readImage(filter.process(imageData));
   }
 
-  loadImage(filename: string, filter: Filter): void {
-    // tslint:disable-next-line: non-literal-fs-path
-    const data = fs.readFileSync(filename);
-    this.loadImageData(data, filter);
-  }
-
-  loadImageData(data: Buffer, filter: Filter): void {
-    const png = PNG.sync.read(data);
-    const image = filter.process(png);
-    this.readImage(image);
-  }
-
   /**
-   * Load actual image pixels from PNG image.
-   *
-   * @param image PNG image
+   * Load actual image pixels from image data.
    */
-  private readImage(image: PNG): void {
+  private readImage(image: ImageData): void {
     const width = image.width;
@@ -44,0 +25,0 @@ const img_height = image.height;

src/index.ts

@@ -5,5 +5,6 @@ export * from './actions';
 export { default as Image } from './graphics/Image';
+export * from './graphics/Image';
+export { default as Manager } from './graphics/Manager';
 export * from './graphics/filter';
 export * from './Printer';
 export { default as Printer } from './Printer';
-export { PNG } from 'pngjs';

src/Printer.ts

 import Model from './Model';
 import { Connection } from './connection';
-import Image from './graphics/Image';
 import { StyleConf } from './profile';
 import { Cut, Drawer, Align } from './actions';
 import { SupportedModel } from './capabilities';
+import Image from './graphics/Image';
+import Manager from './graphics/Manager';
 
@@ -87,2 +88,3 @@ export default class Printer {
     connection: Connection,
+    imageManager?: Manager,
   ): Promise<Printer> {
@@ -97,2 +99,3 @@ let model: Model;
     model.profile.connection = connection;
+    model.profile.imageManager = imageManager;
     await model.profile.initialize();
@@ -99,0 +102,0 @@ return new Printer(model);

src/profile/index.ts

@@ -5,5 +5,5 @@ import { Connection } from '../connection';
 import * as iconv from 'iconv-lite';
-import * as QRCode from 'qrcode';
 import Image from '../graphics/Image';
 import { Threshold } from '../graphics/filter';
+import Manager from '../graphics/Manager';
 
@@ -25,2 +25,3 @@ export type StyleConf = {
   protected capabilities: Capability;
+  public imageManager?: Manager;
 
@@ -144,4 +145,7 @@ constructor(capabilities: Capability) {
   protected async drawQrcode(data: string, size: number): Promise<void> {
-    const buffer = await QRCode.toBuffer(data, { scale: size });
-    const image = new Image(buffer, new Threshold());
+    if (!this.imageManager) {
+      throw new Error('No image manager to draw qrcode');
+    }
+    const imageData = await this.imageManager.buildQrcodeImage(data, size);
+    const image = new Image(imageData, new Threshold());
     return this.draw(image);
@@ -148,0 +152,0 @@ }

No alert changes

Improved metrics

Dependency count

2

decreased by-50%

Dev dependency count

13

decreased by-7.14%

Worsened metrics

Total package byte prevSize

387624

decreased by-0.46%

Lines of code

5373

decreased by-0.5%

Dependency changes

• - Removedpngjs@^5.0.0

• - Removedqrcode@^1.5.1

• - Removedansi-regex@5.0.1(transitive)

• - Removedansi-styles@4.3.0(transitive)

• - Removedcamelcase@5.3.1(transitive)

• - Removedcliui@6.0.0(transitive)

• - Removedcolor-convert@2.0.1(transitive)

• - Removedcolor-name@1.1.4(transitive)

• - Removeddecamelize@1.2.0(transitive)

• - Removeddijkstrajs@1.0.3(transitive)

• - Removedemoji-regex@8.0.0(transitive)

• - Removedencode-utf8@1.0.3(transitive)

• - Removedfind-up@4.1.0(transitive)

• - Removedget-caller-file@2.0.5(transitive)

• - Removedis-fullwidth-code-point@3.0.0(transitive)

• - Removedlocate-path@5.0.0(transitive)

• - Removedp-limit@2.3.0(transitive)

• - Removedp-locate@4.1.0(transitive)

• - Removedp-try@2.2.0(transitive)

• - Removedpath-exists@4.0.0(transitive)

• - Removedpngjs@5.0.0(transitive)

• - Removedqrcode@1.5.3(transitive)

• - Removedrequire-directory@2.1.1(transitive)

• - Removedrequire-main-filename@2.0.0(transitive)

• - Removedset-blocking@2.0.0(transitive)

• - Removedstring-width@4.2.3(transitive)

• - Removedstrip-ansi@6.0.1(transitive)

• - Removedwhich-module@2.0.1(transitive)

• - Removedwrap-ansi@6.2.0(transitive)

• - Removedy18n@4.0.3(transitive)

• - Removedyargs@15.4.1(transitive)

• - Removedyargs-parser@18.1.3(transitive)