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white-board-pro2

v1.3.5

Published

web画写板控件

Downloads

8

Readme

white-board-pro2

基于canvas的web画写板控件。

功能

  • 支持多层级画板叠加展示
  • 支持画笔样式选择及擦除等画板基础绘图功能
  • 支持加页
  • 支持压感设备
  • 兼容鼠标和touch操作
  • 保存原始笔记数据
  • 支持多媒体组件的展示及基本操作,如拖拽等(此功能暂不提供)

下载

使用npm:

$ npm install -S white-board-pro2

引入

// index.js

import { WhiteBoard } from 'white-board-pro2';

演示

img

使用

基本使用:

var myboard = WhiteBoard({
    "el": ".box",
    "maxPage": 5,
    "pageHeight": 100,
    "rubberRange": 10,
    "addBtn": true,
    "zIndexInfo": [{
        "inputType": "fountain-pen",
        "color": "#000000",
        "page": 2,
        "size": 2,
        "zIndex": 1,
        "content": [{"p":[4096,4096,4096,4096,4096,4096,4096,4096,4096,4096,4096,4096,4096,4096,4096,4096,4096,4096,4096,4096,4096,4096,4096,4096,4096,4096,4096,4096,4096,4096,4096,4096,4096,4096,4096,4096,4096,4096,4096,4096,4096,4096],"x":[293,293,293,293,293,293,293,293,293,293,295,321,362,415,475,524,541,588,612,633,650,662,673,680,685,697,710,736,774,819,848,876,899,912,924,939,953,980,1034,1114,1209,1317],"y":[273,273,273,273,273,273,273,273,275,293,343,409,499,599,671,703,709,716,702,668,621,571,524,501,488,483,489,516,558,600,625,642,649,649,634,615,605,605,609,638,659,669],"canvasSettings":{"strokeStyle":"#ce6bd1","lineWidth":26,"lineCap":"round","inputType":"fountain-pen"},"rectArea":[283,1327,263,726]}],
        "other": {
            "img": [],
            "audio": [],
            "video": [],
            "N2": []
        }
    }],
    "watcher": {
        wait: 2000,
        cb: () => console.log('异步执行回调')
    },
    "writeCallBack": {
        type: "once",
        cb: () => console.log('同步执行回调')
    },
    "addCallBack": () => console.log('加纸')
});

初始化控件的配置项说明

    el: 画板容器元素,支持id选择符,类选择符和元素选择符,必须设置好宽高 | String
    maxPage: 画板最大页数 | Number
    pageHeight: 加页高度,可选,默认是一页高度为el高度 | Number
    rubberRange: 橡皮擦精度,可选,默认10 | Number
    addBtn: 是否初始化默认的加页按钮,必填 | Boolean
    zIndexInfo: 画板初始化层级以及每层画布的初始参数(详情见zIndexInfo说明),支持多级画布 | Array
    watcher: 画板进行操作后的异步回调 | Object
    writeCallBack: 画板进行操作时同步执行的回调 | Object
    addCallBack: 画板加页后的回调 | Function

zIndexInfo配置属性说明

inputType: 输入类型 | String

  • fountain-pen: 钢笔
  • fluorescent-pen: 荧光笔
  • rubber: 橡皮
  • N2: N2笔(暂不支持)
  • text: 文本(暂不支持)

disabled: 该层画板是否可书写 | Boolean

  • true(默认): 可书写
  • false: 禁用

color: 该层画板初始画笔颜色 | String

page: 该层画板初始页数 | Number

size: 该层画板初始画笔粗细 | Number

zIndex: 该层画板在父级容器中的层级 | Number

content: 该层画板的笔记轨迹数据和每条笔记的画笔设置信息 | Array

    "content": [
        {
            // 压感值集合
            "p": [],
            // x点坐标集合
            "x": [],
            // y点坐标集合
            "y": [],
            // 此条笔记的画笔设置信息
            "canvasSettings": {
                "strokeStyle": "#FF9500",
                "lineWidth": 2,
                "lineCap": "round",
                "inputType": 'fountain-pen'
            },
            // 此条轨迹的矩形范围
            "rectArea": []
        }
    ]

other: 该层画板的多媒体组件信息 | Object

    "other": {
        "img": [], // 图片组件
        "audio": [], // 音频组件
        "video": [], // 视频组件
        "N2": [] // N2笔图片组件
    }

API

以创建好的myBoard实例为例:

当前层画板加页

    myBoard.addPage();

当前层画板添加多媒体组件(暂不支持)

    myBoard.createMediaDom(type, url, initDrag);
    /*
        type: 多媒体组件类型(img/audio/video/N2)
        url: 数据(图片地址,音视频播放地址)
        initDrag: 是否初始化拖拽
    */

    // 以添加图片组件为例
    myBoard.createMediaDom('img', 'https://s.gravatar.com/avatar/7d228fb734bde96e1bae224107cc48cb', true);

设置当前层画板输入类型

    myBoard.setInputType('fountain-pen');

设置当前层画板画笔颜色

    myBoard.setInputColor('#000000');

设置当前层画板画笔粗细

    myBoard.setInputSize(10);

保存时获取画板数据

    myBoard.getBoardData();

销毁画板组件

    myBoard.dispose();