npm install react-image-cropper

A React.JS Image Cropper
Touch supported
Custom:
+ initial cropper frame position
+ frame width, height, ratio
+ crop event
+ import {Cropper} from 'react-image-cropper'
+ styles are all inline
+ define Cropper with src, and ref to execute crop method
```
ref={ ref => { this.cropper = ref }}
/>
+ crop and get image url
image.src = this.cropper.crop()
+ get crop values:
const values = this.cropper.values()
values:
```
{
// display values
display: {
width, // frame width
height, // frame height
x, // original x position
y, // original y position
imgWidth, // img width
imgHeight, // img height
},
// original values
original: {
width, // frame width
height, // frame height
x, // original x position
y, // original y position
imgWidth, // img width
imgHeight, // img height
}
}
+ onChange for preview
(values) => onChange(values)
+ custom use
| prop | value |
|:-------:|:--------|
| ratio | width / height |
| width | cropper frame width |
| height | cropper frame height |
| originX | cropper original position(x axis), accroding to image left|
| originY | cropper original position(Y axis), accroding to image top|
| fixedRatio | turn on/off fixed ratio (bool default true) |
| allowNewSelection | allow user to create a new selection instead of reusing initial selection (bool default true) |
| styles | specify styles to override inline styles |
| onImgLoad | specify fuction callback to run when the image completed loading |
| beforeImgload | specify function callback to run when the image size value is ready but image is not completed loading |
| onChange | triggred when dragging stop, get values of cropper |