React Multi Crops

A multiple cropping component for React

online demo

Installation

npm install react-multi-crops --save

Usage

import React from 'react'
import ReactDOM from 'react-dom'
import MultiCrops from 'react-multi-crops'
import img from './imgs/kumamon.jpg'

class App extends React.Component {
  state = {
    coordinates: [],
  }

  changeCoordinate = (coordinate, index, coordinates) => {
    this.setState({
      coordinates,
    })
  }
  deleteCoordinate = (coordinate, index, coordinates) => {
    this.setState({
      coordinates,
    })
  }
  render() {
    return
        <MultiCrops
          src={img}
          width={1000}
          coordinates={this.state.coordinates}
          onChange={this.changeCoordinate}
          onDelete={this.deleteCoordinate}
        />
      </div>
  }
}


ReactDOM.render(
  <div>
    <App />
  </div>,
  document.getElementById('root'),
)

Props

| Prop | Description | Type | Default | | ----------- | ------------------------------------------------------------ | ---------------------------------------- | ------- | | src | Src of background image. | string | - | | coordinates | An array of coordinate( see the table blew), {id, x, y, width, height}. | array | [] | | width | Width of background image. | number(in pixel) | - | | height | Height of background image. | number(in pixel) | - | | onDraw | A callback which hanppends when a user starts drawing a new rectangle. | funtion(coordinate , index, coordinates) | - | | onDrag | A callback which hanppends when a user stars draging a exited rectangle. | funtion(coordinate , index, coordinates) | - | | onResize | A callback which hanppends when a user starts resizing a exited rectangle. | funtion(coordinate , index, coordinates) | - | | onChange | A callback which hanppends when a user starts drawing, draging or resizing a new/exited rectangle. | funtion(coordinate , index, coordinates) | - | | onDelete | A callback which hanppends when a user delete a exited rectangle. | funtion(coordinate , index, coordinates) | - | | onLoad | The callback is triggered when the background image is loaded. | onLoad(e) | - |

coordinate

| Prop | Description | Type | Default | | ------ | ------------------------------------------------------------ | ---------------- | ------- | | id | Unique between in coordinates array | string | - | | x | X coordinate relative to left corner(0,0) of background image. From left to right, x will go up. | number(in pixel) | - | | y | Y coordinate relative to left corner(0,0) of background image. From top to bottom, y will go up. | number(in pixel) | - | | width | Width of coordinate | number(in pixel) | - | | height | Height of coordinate | number(in pixel) | - |