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watermark-for-vue

v2.0.1

Published

```shell npm install watermark-for-vue ```

Downloads

12

Readme

安装

npm install watermark-for-vue

使用方式

import Watermark from "watermark-for-vue";

Vue.use(Watermark)

也可以

import Watermark from "watermark-for-vue";

export default {
  name: "App",
  components: {
    Watermark,
  },
  data() {
    return {
      options: {
        content: "",
      },
    };
  },
};
<watermark :options="options">
    <div class="container">
      内容区域
    </div>
</watermark>

注意事项

默认使用文字填充水印,当传入 src 时水印内容为图片水印,优先级高于文字水印。

options: {
  src: require("@/assets/logo.png");//https://avatars.githubusercontent.com/u/58333667?s=60&v=4
}

options 配置

| 属性 | 说明 | 类型 | 默认值 | | :----------: | :--------------------------------------: | :----: | :------------------: | | width | canvas | 元素宽 | string 300 | | height | canvas | 元素高 | string 200 | | textAlign | 绘制文本的对齐方式 | string | left | | textBaseline | 文本基准线 | string | bottom | | font | 字体大小及样式 | string | 16px Microsoft Yahei | | fillStyle | 自定义水印的颜色 | string | black | | content | 水印内容 | string | 内部文档,请勿外传 | | globalAlpha | 设置图形和图像透明度的值 | number | 0.1 | | rotate | 旋转角度 | number | 16 | | repeat | 水印重复属性 | string | repeat | | x | canvas 横向偏移量 | number | 15 | | y | canvas 纵向偏移量 | number | 15 | | src | 水印为图片时的路径(支持本地和网络图片) | string | null | | sx | 开始剪切的 x 坐标位置 | number | 0 | | sy | 开始剪切的 y 坐标位置 | number | 0 | | dx | 在画布上放置图像的 x 坐标位置 | number | 0 | | dy | 在画布上放置图像的 y 坐标位置 | number | 0 | | iwidth | 要使用的图像的宽度。(伸展或缩小图像) | number | 60 | | iheight | 要使用的图像的高度。(伸展或缩小图像) | number | 60 |

//canvas绘制图片水印的参数
ctx.drawImage(img, sx, sy, img.width, img.height, dx, dy, iwidth, iheight);

兼容性

使用了MutationObserver API,低版本浏览器无法使用,自行查看