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一款强大到没朋友的图片编辑插件，爱了爱了！

前言


最近用户提出了一个新的需求，老师可以批改学生的图片作业，需要对图片进行旋转、缩放、裁剪、涂鸦、标注、添加文本等。乍一听，又要掉不少头发。有没有功能强大的插件实现以上功能，让我有更多的时间去阻止女票双十一剁手呢？答案当然是有的。


效果展示

涂鸦



涂鸦2.jpg


裁剪


裁剪.jpg


标注


标注2.jpg


旋转


旋转2.jpg


滤镜


1636088844(1).jpg


是不是很强大！还有众多功能我就不一一展示了。那么还等什么，跟我一起用起来吧~


安装


npm i tui-image-editor

// or

yarn add tui-image-editor

使用

快速体验



复制以下代码，将插件引入到自己的项目中。


<template>
<div class="drawing-container">
<div id="tui-image-editor"></div>
</div>

</template>
<script>
import "tui-image-editor/dist/tui-image-editor.css";
import "tui-color-picker/dist/tui-color-picker.css";
import ImageEditor from "tui-image-editor";
export default {
data() {
return {
instance: null,

    };

  },
mounted() {
this.init();

  },
methods: {
init() {
this.instance = new ImageEditor(
document.querySelector("#tui-image-editor"),

        {
includeUI: {
loadImage: {
path: "https://p1-juejin.byteimg.com/tos-cn-i-k3u1fbpfcp/c1d7a1feb60346449c1a64893888989a~tplv-k3u1fbpfcp-watermark.image",
name: "image",

            },
initMenu: "draw", // 默认打开的菜单项
menuBarPosition: "bottom", // 菜单所在的位置

          },
cssMaxWidth: 1000, // canvas 最大宽度
cssMaxHeight: 600, // canvas 最大高度

        }

      );
document.getElementsByClassName("tui-image-editor-main")[0].style.top = "45px"; // 图片距顶部工具栏的距离

    },

  },

};
</script>

<style lang="scss" scoped>
.drawing-container {
height: 900px;

}
</style>

可以看到活生生的图片编辑工具就出现了，是不是很简单：


初始效果.jpg


国际化


由于是老外开发的，默认的文字描述都是英文，这里我们先汉化一下：


const locale_zh = {
ZoomIn: "放大",
ZoomOut: "缩小",
Hand: "手掌",
History: '历史',
Resize: '调整宽高',
Crop: "裁剪",
DeleteAll: "全部删除",
Delete: "删除",
Undo: "撤销",
Redo: "反撤销",
Reset: "重置",
Flip: "镜像",
Rotate: "旋转",
Draw: "画",
Shape: "形状标注",
Icon: "图标标注",
Text: "文字标注",
Mask: "遮罩",
Filter: "滤镜",
Bold: "加粗",
Italic: "斜体",
Underline: "下划线",
Left: "左对齐",
Center: "居中",
Right: "右对齐",
Color: "颜色",
"Text size": "字体大小",
Custom: "自定义",
Square: "正方形",
Apply: "应用",
Cancel: "取消",
"Flip X": "X 轴",
"Flip Y": "Y 轴",
Range: "区间",
Stroke: "描边",
Fill: "填充",
Circle: "圆",
Triangle: "三角",
Rectangle: "矩形",
Free: "曲线",
Straight: "直线",
Arrow: "箭头",
"Arrow-2": "箭头2",
"Arrow-3": "箭头3",
"Star-1": "星星1",
"Star-2": "星星2",
Polygon: "多边形",
Location: "定位",
Heart: "心形",
Bubble: "气泡",
"Custom icon": "自定义图标",
"Load Mask Image": "加载蒙层图片",
Grayscale: "灰度",
Blur: "模糊",
Sharpen: "锐化",
Emboss: "浮雕",
"Remove White": "除去白色",
Distance: "距离",
Brightness: "亮度",
Noise: "噪音",
"Color Filter": "彩色滤镜",
Sepia: "棕色",
Sepia2: "棕色2",
Invert: "负片",
Pixelate: "像素化",
Threshold: "阈值",
Tint: "色调",
Multiply: "正片叠底",
Blend: "混合色",
Width: "宽度",
Height: "高度",
"Lock Aspect Ratio": "锁定宽高比例",

};

this.instance = new ImageEditor(
document.querySelector("#tui-image-editor"),

  {
includeUI: {
loadImage: {
path: "https://p1-juejin.byteimg.com/tos-cn-i-k3u1fbpfcp/c1d7a1feb60346449c1a64893888989a~tplv-k3u1fbpfcp-watermark.image",
name: "image",

      },
initMenu: "draw", // 默认打开的菜单项
menuBarPosition: "bottom", // 菜单所在的位置
locale: locale_zh, // 本地化语言为中文

    },
cssMaxWidth: 1000, // canvas 最大宽度
cssMaxHeight: 600, // canvas 最大高度

  }

);

效果如下：


汉化.jpg


自定义样式


默认风格为暗黑系，如果想改成白底，或者想改变按钮的大小、颜色等样式，可以使用自定义样式。


const customTheme = {
"common.bi.image": "", // 左上角logo图片
"common.bisize.width": "0px",
"common.bisize.height": "0px",
"common.backgroundImage": "none",
"common.backgroundColor": "#f3f4f6",
"common.border": "1px solid #333",

// header
"header.backgroundImage": "none",
"header.backgroundColor": "#f3f4f6",
"header.border": "0px",

// load button
"loadButton.backgroundColor": "#fff",
"loadButton.border": "1px solid #ddd",
"loadButton.color": "#222",
"loadButton.fontFamily": "NotoSans, sans-serif",
"loadButton.fontSize": "12px",
"loadButton.display": "none", // 隐藏

// download button
"downloadButton.backgroundColor": "#fdba3b",
"downloadButton.border": "1px solid #fdba3b",
"downloadButton.color": "#fff",
"downloadButton.fontFamily": "NotoSans, sans-serif",
"downloadButton.fontSize": "12px",
"downloadButton.display": "none", // 隐藏

// icons default
"menu.normalIcon.color": "#8a8a8a",
"menu.activeIcon.color": "#555555",
"menu.disabledIcon.color": "#ccc",
"menu.hoverIcon.color": "#e9e9e9",
"submenu.normalIcon.color": "#8a8a8a",
"submenu.activeIcon.color": "#e9e9e9",

"menu.iconSize.width": "24px",
"menu.iconSize.height": "24px",
"submenu.iconSize.width": "32px",
"submenu.iconSize.height": "32px",

// submenu primary color
"submenu.backgroundColor": "#1e1e1e",
"submenu.partition.color": "#858585",

// submenu labels
"submenu.normalLabel.color": "#858585",
"submenu.normalLabel.fontWeight": "lighter",
"submenu.activeLabel.color": "#fff",
"submenu.activeLabel.fontWeight": "lighter",

// checkbox style
"checkbox.border": "1px solid #ccc",
"checkbox.backgroundColor": "#fff",

// rango style
"range.pointer.color": "#fff",
"range.bar.color": "#666",
"range.subbar.color": "#d1d1d1",

"range.disabledPointer.color": "#414141",
"range.disabledBar.color": "#282828",
"range.disabledSubbar.color": "#414141",

"range.value.color": "#fff",
"range.value.fontWeight": "lighter",
"range.value.fontSize": "11px",
"range.value.border": "1px solid #353535",
"range.value.backgroundColor": "#151515",
"range.title.color": "#fff",
"range.title.fontWeight": "lighter",

// colorpicker style
"colorpicker.button.border": "1px solid #1e1e1e",
"colorpicker.title.color": "#fff",

};

this.instance = new ImageEditor(
document.querySelector("#tui-image-editor"),

  {
includeUI: {
loadImage: {
path: "https://p1-juejin.byteimg.com/tos-cn-i-k3u1fbpfcp/c1d7a1feb60346449c1a64893888989a~tplv-k3u1fbpfcp-watermark.image",
name: "image",

      },
initMenu: "draw", // 默认打开的菜单项
menuBarPosition: "bottom", // 菜单所在的位置
locale: locale_zh, // 本地化语言为中文
theme: customTheme, // 自定义样式

    },
cssMaxWidth: 1000, // canvas 最大宽度
cssMaxHeight: 600, // canvas 最大高度

  }

);

效果如下：


自定义样式.jpg


按钮优化


通过自定义样式，我们看到右上角的 Load 和 Download 按钮已经被隐藏了，接下来我们再隐藏掉其他用不上的按钮（根据业务需要），并添加一个保存图片的按钮。


<template>
<div class="drawing-container">
<div id="tui-image-editor"></div>
<el-button class="save" type="primary" size="small" @click="save">保存</el-button>
</div>

</template>

// ...

methods: {
init() {
this.instance = new ImageEditor(
document.querySelector("#tui-image-editor"),

      {
includeUI: {
loadImage: {
path: "https://p1-juejin.byteimg.com/tos-cn-i-k3u1fbpfcp/c1d7a1feb60346449c1a64893888989a~tplv-k3u1fbpfcp-watermark.image",
name: "image",

          },
menu: ["resize", "crop", "rotate", "draw", "shape", "icon", "text", "filter"], // 底部菜单按钮列表 隐藏镜像flip和遮罩mask
initMenu: "draw", // 默认打开的菜单项
menuBarPosition: "bottom", // 菜单所在的位置
locale: locale_zh, // 本地化语言为中文
theme: customTheme, // 自定义样式

        },
cssMaxWidth: 1000, // canvas 最大宽度
cssMaxHeight: 600, // canvas 最大高度

      }

    );
document.getElementsByClassName("tui-image-editor-main")[0].style.top ="45px"; // 调整图片显示位置
document.getElementsByClassName("tie-btn-reset tui-image-editor-item help") [0].style.display = "none";  // 隐藏顶部重置按钮

  },
// 保存图片，并上传
save() {
const base64String = this.instance.toDataURL(); // base64 文件
const data = window.atob(base64String.split(",")[1]);
const ia = new Uint8Array(data.length);
for (let i = 0; i < data.length; i++) {

      ia[i] = data.charCodeAt(i);

    }
const blob = new Blob([ia], { type: "image/png" }); // blob 文件
const form = new FormData();

    form.append("image", blob);
// upload file

  },

}


<style lang="scss" scoped>

.drawing-container {
height: 900px;

  position: relative;

  .save {
position: absolute;

    right: 50px;

    top: 15px;

  }

}

</style>

效果如下：


按钮优化.jpg


可以看到顶部的重置按钮，以及底部的镜像和遮罩按钮都已经不见了。右上角多了一个我们自己的保存按钮，点击按钮，可以获取到 base64 文件和 blob 文件。


完整代码


<template>
<div class="drawing-container">
<div id="tui-image-editor"></div>
<el-button class="save" type="primary" size="small" @click="save">保存</el-button>
</div>

</template>
<script>
import 'tui-image-editor/dist/tui-image-editor.css'
import 'tui-color-picker/dist/tui-color-picker.css'
import ImageEditor from 'tui-image-editor'
const locale_zh = {
ZoomIn: '放大',
ZoomOut: '缩小',
Hand: '手掌',
History: '历史',
Resize: '调整宽高',
Crop: '裁剪',
DeleteAll: '全部删除',
Delete: '删除',
Undo: '撤销',
Redo: '反撤销',
Reset: '重置',
Flip: '镜像',
Rotate: '旋转',
Draw: '画',
Shape: '形状标注',
Icon: '图标标注',
Text: '文字标注',
Mask: '遮罩',
Filter: '滤镜',
Bold: '加粗',
Italic: '斜体',
Underline: '下划线',
Left: '左对齐',
Center: '居中',
Right: '右对齐',
Color: '颜色',
'Text size': '字体大小',
Custom: '自定义',
Square: '正方形',
Apply: '应用',
Cancel: '取消',
'Flip X': 'X 轴',
'Flip Y': 'Y 轴',
Range: '区间',
Stroke: '描边',
Fill: '填充',
Circle: '圆',
Triangle: '三角',
Rectangle: '矩形',
Free: '曲线',
Straight: '直线',
Arrow: '箭头',
'Arrow-2': '箭头2',
'Arrow-3': '箭头3',
'Star-1': '星星1',
'Star-2': '星星2',
Polygon: '多边形',
Location: '定位',
Heart: '心形',
Bubble: '气泡',
'Custom icon': '自定义图标',
'Load Mask Image': '加载蒙层图片',
Grayscale: '灰度',
Blur: '模糊',
Sharpen: '锐化',
Emboss: '浮雕',
'Remove White': '除去白色',
Distance: '距离',
Brightness: '亮度',
Noise: '噪音',
'Color Filter': '彩色滤镜',
Sepia: '棕色',
Sepia2: '棕色2',
Invert: '负片',
Pixelate: '像素化',
Threshold: '阈值',
Tint: '色调',
Multiply: '正片叠底',
Blend: '混合色',
Width: '宽度',
Height: '高度',
'Lock Aspect Ratio': '锁定宽高比例'

}

const customTheme = {
"common.bi.image": "", // 左上角logo图片
"common.bisize.width": "0px",
"common.bisize.height": "0px",
"common.backgroundImage": "none",
"common.backgroundColor": "#f3f4f6",
"common.border": "1px solid #333",

// header
"header.backgroundImage": "none",
"header.backgroundColor": "#f3f4f6",
"header.border": "0px",

// load button
"loadButton.backgroundColor": "#fff",
"loadButton.border": "1px solid #ddd",
"loadButton.color": "#222",
"loadButton.fontFamily": "NotoSans, sans-serif",
"loadButton.fontSize": "12px",
"loadButton.display": "none", // 隐藏

// download button
"downloadButton.backgroundColor": "#fdba3b",
"downloadButton.border": "1px solid #fdba3b",
"downloadButton.color": "#fff",
"downloadButton.fontFamily": "NotoSans, sans-serif",
"downloadButton.fontSize": "12px",
"downloadButton.display": "none", // 隐藏

// icons default
"menu.normalIcon.color": "#8a8a8a",
"menu.activeIcon.color": "#555555",
"menu.disabledIcon.color": "#ccc",
"menu.hoverIcon.color": "#e9e9e9",
"submenu.normalIcon.color": "#8a8a8a",
"submenu.activeIcon.color": "#e9e9e9",

"menu.iconSize.width": "24px",
"menu.iconSize.height": "24px",
"submenu.iconSize.width": "32px",
"submenu.iconSize.height": "32px",

// submenu primary color
"submenu.backgroundColor": "#1e1e1e",
"submenu.partition.color": "#858585",

// submenu labels
"submenu.normalLabel.color": "#858585",
"submenu.normalLabel.fontWeight": "lighter",
"submenu.activeLabel.color": "#fff",
"submenu.activeLabel.fontWeight": "lighter",

// checkbox style
"checkbox.border": "1px solid #ccc",
"checkbox.backgroundColor": "#fff",

// rango style
"range.pointer.color": "#fff",
"range.bar.color": "#666",
"range.subbar.color": "#d1d1d1",

"range.disabledPointer.color": "#414141",
"range.disabledBar.color": "#282828",
"range.disabledSubbar.color": "#414141",

"range.value.color": "#fff",
"range.value.fontWeight": "lighter",
"range.value.fontSize": "11px",
"range.value.border": "1px solid #353535",
"range.value.backgroundColor": "#151515",
"range.title.color": "#fff",
"range.title.fontWeight": "lighter",

// colorpicker style
"colorpicker.button.border": "1px solid #1e1e1e",
"colorpicker.title.color": "#fff",

};
export default {
data() {
return {
instance: null

    }

  },
mounted() {
this.init()

  },
methods: {
init() {
this.instance = new ImageEditor(document.querySelector('#tui-image-editor'), {
includeUI: {
loadImage: {
path: 'https://p1-juejin.byteimg.com/tos-cn-i-k3u1fbpfcp/c1d7a1feb60346449c1a64893888989a~tplv-k3u1fbpfcp-watermark.image',
name: 'image'

          },
menu: ['resize', 'crop', 'rotate', 'draw', 'shape', 'icon', 'text', 'filter'], // 底部菜单按钮列表 隐藏镜像flip和遮罩mask
initMenu: 'draw', // 默认打开的菜单项
menuBarPosition: 'bottom', // 菜单所在的位置
locale: locale_zh, // 本地化语言为中文
theme: customTheme // 自定义样式

        },
cssMaxWidth: 1000, // canvas 最大宽度
cssMaxHeight: 600 // canvas 最大高度

      })
document.getElementsByClassName('tui-image-editor-main')[0].style.top = '45px' // 调整图片显示位置
document.getElementsByClassName(
'tie-btn-reset tui-image-editor-item help'

      )[0].style.display = 'none' // 隐藏顶部重置按钮

    },
// 保存图片，并上传
save() {
const base64String = this.instance.toDataURL() // base64 文件
const data = window.atob(base64String.split(',')[1])
const ia = new Uint8Array(data.length)
for (let i = 0; i < data.length; i++) {

        ia[i] = data.charCodeAt(i)

      }
const blob = new Blob([ia], { type: 'image/png' }) // blob 文件
const form = new FormData()

      form.append('image', blob)
// upload file

    }

  }

}
</script>

<style lang="scss" scoped>
.drawing-container {
height: 900px;
position: relative;
.save {
position: absolute;
right: 50px;
top: 15px;

  }

}
</style>

总结


以上就是 tui.image-editor 的基本使用方法，相比其他插件，tui.image-editor 的优势是功能强大，简单易上手。


插件固然好用，但本人也发现一个小 bug，当放大图片，用手掌拖动显示位置，再点击重置按钮时，图片很可能就消失不见了。解决办法有两个，一是改源码，在重置之前，先调用 resetZoom 方法，还原缩放比列；二是自己做一个重置按钮，点击之后调用 this.init 方法重新进行渲染。



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2021-11-09

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