1.2.3 • Published 2 years ago

ng-img-editor v1.2.3

Weekly downloads
-
License
MIT
Repository
github
Last release
2 years ago

Image Cropper for Angular

NPM version The MIT License The MIT License

Features

  • NgImgEditor Component Injection without being passed ViewContainerRef
  • High performance
  • Highly configurable and customizable
  • Overridable styles
  • Fully Supported

Install

   npm install ng-img-editor --save  
   
   or

   yarn add ng-img-editor

Setup

Step 1:

  • Import CSS.
@import "~ng-img-editor/photo-editor.css";
  • If you are using angular-cli you can add it to your angular.json
"styles": [
  "styles.scss",
  "node_modules/ng-img-editor/photo-editor.css" // try adding '../' if you're using angular cli before 6
]

Step 2:

  • Add NgImgEditorModule to app.module.ts
import {NgModule} from '@angular/core';
import {BrowserModule} from '@angular/platform-browser';
import {AppComponent} from './app.component';
import {NgImgEditorModule} from "ng-img-editor";

@NgModule({
  declarations: [
    AppComponent
  ],
  imports: [
    BrowserModule,
    NgImgEditorModule,
  ],
  providers: [],
  bootstrap: [AppComponent]
})
export class AppModule {
}

Usage

<input type="file" (change)="fileChangeHandler($event)">
<img [src]="output?.base64" alt="">

And add this to your .ts file:

import {Component} from '@angular/core';
import {NgxCroppedEvent, NgImgEditorService} from "ng-img-editor";

@Component({...})
export class AppComponent {
  output?: NgxCroppedEvent;

  constructor(private service: NgImgEditorService) {}

  fileChangeHandler($event: any) {
    this.service.open($event, {
      aspectRatio: 4 / 3,
      autoCropArea: 1
    }).subscribe(data => {
      this.output = data;
    });
  }
}

You can pass any supported type of parameters to NgImgEditorService.open() to open the cropper. After click Apply button the observer will return an object with the cropped image as a Base64, Blob in its payload.

Parameters

NameTypeDescription
sourceFileEvent | File | Blob | stringOnly image URL string, image related sources are supported.
optionscheck below paraThis is an optional parameter

Options

NameTypeDefaultDescription
formatstringsource Image formatOutput format (png, jpeg, webp, bmp, ico) (not all browsers support all types, png is always supported, others are optional)
aspectRationumberNaNThe width / height ratio (e.g. 1 / 1 for a square, 4 / 3, 16 / 9 ...)
resizeToWidthnumber0 (disabled)Cropped image will be resized to this width (in px)
resizeToHeightnumber0 (disabled)Cropped image will be resized to this height (in px)
roundCropperbooleanfalseSet this to true for a round cropper mask. Resulting image will still be square, use border-radius: 100% on resulting image to show it as round.
imageQualitynumber92This only applies when using jpeg or webp as output format. Entering a number between 0 and 100 will determine the quality of the output image.
autoCropbooleantrueEnable to crop the image automatically when initialized.
autoCropAreanumber1 (80% of the image)A number between 0 and 1. Define the automatic cropping area size (percentage).
viewModenumber0Define the ViewMode of the cropper.
maskbooleantrueShow the black modal above the image and under the crop box.
guidesbooleantrueShow the dashed lines above the crop box.
centerIndicatorbooleantrueShow the center indicator above the crop box.
scalablebooleantrueEnable to scale the image.
zoomablebooleantrueEnable to zoom the image.
cropBoxMovablebooleantrueEnable to move the crop box by dragging.
cropBoxResizablebooleantrueEnable to resize the crop box by dragging.
imageSmoothingEnabledbooleantrueSmooth image output.
imageSmoothingQualitystringlowquality of image smoothing, one of "low" or "medium", or "high".
modalMaxWidthstring'500px'max-width property of the dialog container
hideModalHeaderbooleanfalseHide Modal Header.
applyBtnTextstringApplyApply button text
closeBtnTextstringCloseClose button text

Interfaces

NgxCroppedEvent

PropertyTypeDescription
base64stringBase64 string of the cropped image
filefile(Blob)Blob(File) of the cropped image

viewMode

  • Type: Number
  • Default: 0
  • Options:
    • 0: no restrictions
    • 1: restrict the crop box to not exceed the size of the canvas.
    • 2: restrict the minimum canvas size to fit within the container. If the proportions of the canvas and the container differ, the minimum canvas will be surrounded by extra space in one of the dimensions.
    • 3: restrict the minimum canvas size to fill fit the container. If the proportions of the canvas and the container are different, the container will not be able to fit the whole canvas in one of the dimensions.

Define the view mode of the cropper. If you set viewMode to 0, the crop box can extend outside the canvas, while a value of 1, 2 or 3 will restrict the crop box to the size of the canvas. A viewMode of 2 or 3 will additionally restrict the canvas to the container. Note that if the proportions of the canvas and the container are the same, there is no difference between 2 and 3.