react-multi-crops

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)	-