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mem-htmlcanvas

v1.1.3

Published

> 将html dom渲染成海报图,前端开发0成本上手。 > 依赖xtemplate模板预发,可以学习其基本语法 [xtemplate](https://www.npmjs.com/package/xtemplate) > 如果不使用模板渲染没关系,可以直接使用已有dom进行渲染,详情情看文档

Downloads

3

Readme

MemHtmlCanvas 海报图合成工具

将html dom渲染成海报图,前端开发0成本上手。 依赖xtemplate模板预发,可以学习其基本语法 xtemplate 如果不使用模板渲染没关系,可以直接使用已有dom进行渲染,详情情看文档


安装

$ npm install mem-htmlcanvas --save

用法

new MemHtmlCanvas(xtpl, [options]); MemHtmlCanvas.renderFragment(dom, [options]);


import MemHtmlCanvas from 'mem-htmlcanvas';
import shareXtpl from './share.xtpl';

const canvasObj = new MemHtmlCanvas(shareXtpl);

const data = {
    nick: '哆啦A梦',
    tel: 18815583912
}
canvasObj.render(data).then(({imgUrl}) => {
    // imgUrl则为生成海报图的base64编码
});

// 或者

MemHtmlCanvas.renderFragment(document.querySelect('#box')).then(({imgUrl}) => {
    // imgUrl则为生成海报图的base64编码
});


文档

OPTIONS

preview : true(默认)/false

是否开启预览功能,如果为true,则可以用previewDom.show();预览渲染结果,如果为false,则只输出canvas对象。

canvasObj.render(data).then(({imgUrl, previewDom}) => {
    previewDom.show();
});

onlyCanvas : true/false(默认)

是否只渲染canvas,如果为true,则不会有imgUrl生成。

const canvasObj = new MemHtmlCanvas(shareXtpl, {
    onlyCanvas: true,
});

canvasObj.render(data).then(({imgUrl, previewDom}) => {
    previewDom.show();
});

scale: 2(默认)

canvas画布默认放大比例,一般不修改。

注意事项

  • canvas不支持多行文本溢出截取的属性,本模块输出textOverflow方法可以给你处理此ui问题,用法如下:
import {textOverflow} from 'mem-htmlcanvas';
let title = textOverflow({
    width: 320, // 容器的宽度
    fontSize: 36, // 文本字体
    line: 2, // 文本显示多少行
    lineHeight: 42, // 行高
    text: '舒比奇动动乐舞曲小内裤M22/L20/XL18/XXL18片【1包装】'
})