draw-handwrite-custom

React Drawing board

Browser drawing board created with canvas and React.

Preview

Features

A browser-ready efficient drawing board.

• Support for drawing strokes, shapes, texts and images.
• Built-in support for both redo and clear.
• Easily zoom or pan the board content.
• Ability to save screenshot.
• Ability to be used as a Pictionary board for long distance communication.
• Working for mobile users.

Installation

In NPM

React Drawing board uses a CMD so you can use it in NPM as well. npm install this package and

const DrawingBoard = require('react-drawing-board');

Basic Use

Basic

<DrawingBoard />

As A Pictionary

const Demo: React.FC = () => {
  const [operations, setOperations] = useState<Operation[]>([]);

  return (
    <DrawingBoard
      userId="user1" // identify for different players.
      operations={operations}
      onChange={(newOperation, afterOperation) => {
        console.log(`TODO: send ${newOperation}`);
        setOperations(afterOperation);
      }}
    />
  )
}

Props

Props	Description	Type	Default
userId(optional)	identify for operation source	string	uuid.v4()
locale(optional)	'en-US', 'zh-CN', 'tr-TR'	string	navigator.language
operations(optional)	operations on drawing board	Operation[]	undefined
onChange(optional)	called when user draw some operations	(newOperaton: Operation, operationsAfter: Operation[]) => void	undefined
onSave(image)	called when user click save button for saving current view	(image: { canvas: HTMLCanvasElement, dataUrl: string }) => void	undefined
style(optional)	element style	CSSProperties	undefined
className(optional)	element classname	string	undefined
toolbarPlacement(optional)	the position of toolbar	'top' or 'left' or 'right'	'top'
viewMatrix(optional)	control the current perspective	undefined
onViewMatrixChange(optional)	(viewMatrix: ViewMatrix) => void	undefined