ng4-img-cropper

This is a patched version of ngx-img-cropper to work for Angular 4. For above versions, please use main repo

Install from NPM

    npm i ng4-img-cropper --save

Screenshot

contributing

git clone
npm i
npm start

Do your magic

create a branch for your feature and send a PR Let's do awesome stuff!

Testing

    npm install
    npm run all

Example usage

import { Component } from "angular2/core";
import { ImageCropperComponent, CropperSettings } from "ngx-img-cropper";

@Component({
  selector: "test-app",
  template: `<div>
        <img-cropper [image]="data" [settings]="cropperSettings"></img-cropper><br>
        <img [src]="data.image" [width]="cropperSettings.croppedWidth" [height]="cropperSettings.croppedHeight">
    </div>`,
  declarations: [ImageCropperComponent]
})
export class AppComponent {
  data: any;
  cropperSettings: CropperSettings;

  constructor() {
    this.cropperSettings = new CropperSettings();
    this.cropperSettings.width = 100;
    this.cropperSettings.height = 100;
    this.cropperSettings.croppedWidth = 100;
    this.cropperSettings.croppedHeight = 100;
    this.cropperSettings.canvasWidth = 400;
    this.cropperSettings.canvasHeight = 300;

    this.data = {};
  }
}

Checkout this sample plunker

Settings

• canvasWidth:number - Canvas DOM Element width
• canvasHeight:number - Canvas DOM Element height
• width:number - Crop Width
• height:number - Crop Height
• minWidth:number - Minimum crop Width
• minHeight:number - Minimum crop height
• croppedWidth:number - Resulting image width
• croppedHeight:number - Resulting image height
• touchRadius:number - (default: 20) Touch devices radius for the corner markers
• centerTouchRadius:number (default: 20) - Touch devices radius for the drag center marker
• minWithRelativeToResolution:boolean - (default: true) By default the resulting image will be cropped from original image. If false, it will be cropped from canvas pixels
• noFileInput:boolean - (default: false) - hides the file input element from cropper canvas.
• cropperDrawSettings:CropperDrawSettings - rendering options
  • strokeWidth:number - box/ellipsis stroke width
  • strokeColor:string - box/ellipsis stroke color
• allowedFilesRegex:RegExp - (default: /.(jpe?g|png|gif)$/i) - Regex for allowed images
• preserveSize:boolean - will not scale the resulting image to the croppedWidth/croppedHeight and will output the exact crop size from original
• fileType:string - if defined all images will be converted to desired format. sample: cropperSample.fileType = 'image/jpeg'
• compressRatio:number (default: 1.0) - default compress ratio
• dynamicSizing: (default: false) - if true then the cropper becomes responsive - might introduce performance issues on resize
• cropperClass: string - set class on canvas element
• croppingClass: string - appends class to cropper when image is set (#142)
• resampleFn: Function(canvas) - function used to resample the cropped image (#136); - see example #3 from runtime sample app
• cropOnResize:boolean (default: true) - if true the cropper will create a new cropped Image object immediately when the crop area is resized
• markerSizeMultiplier:number (default: 1) - A variable that controls the corner markers' size
• showCenterMarker:boolean (default: true) - if true, the drag center marker is visible
• keepAspect:boolean (default: true) - if true, the aspect ratio of width and height of the crop window is retained during resizing

Customizing Image cropper

Replacing component file input:

<div class="file-upload">
    <span class="text">upload</span>
    <input id="custom-input" type="file" (change)="fileChangeListener($event)">
</div>
<img-cropper #cropper [image]="data" [settings]="cropperSettings"></img-cropper>
<br>
<span class="result rounded" *ngIf="data.image" >
    <img [src]="data.image" [width]="cropperSettings.croppedWidth" [height]="cropperSettings.croppedHeight">
</span>

data:any;

@ViewChild('cropper', undefined)
cropper:ImageCropperComponent;

constructor() {
    this.cropperSettings = new CropperSettings();
    this.cropperSettings.noFileInput = true;
    this.data = {};
}

fileChangeListener($event) {
    var image:any = new Image();
    var file:File = $event.target.files[0];
    var myReader:FileReader = new FileReader();
    var that = this;
    myReader.onloadend = function (loadEvent:any) {
        image.src = loadEvent.target.result;
        that.cropper.setImage(image);

    };

    myReader.readAsDataURL(file);
}

Build

should work with one of these

 "release:patch": "npm version patch && npm run release",
 "release:minor": "npm version minor && npm run release",
 "release:major": "npm version major && npm run release",

Steps:

1. npm test (no tests yet)
2. npm run build
3. git commit -am "Prerelease updates"
4. git checkout -b release
5. git add -f ./
6. git push --tags
7. git checkout master
8. git branch -D release
9. git push
10. npm run copy:release
11. cd dist
12. npm publish
13. cd ..