961 lines
		
	
	
		
			39 KiB
		
	
	
	
		
			Markdown
		
	
	
			
		
		
	
	
			961 lines
		
	
	
		
			39 KiB
		
	
	
	
		
			Markdown
		
	
	
| # Painter 画板 测试版
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| 
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| > uniapp 海报画板,更优雅的海报生成方案  
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| > [查看更多](https://limeui.qcoon.cn/#/painter)  
 | ||
| 
 | ||
| ## 平台兼容
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| 
 | ||
| | H5  | 微信小程序 | 支付宝小程序 | 百度小程序 | 头条小程序 | QQ 小程序 | App |
 | ||
| | --- | ---------- | ------------ | ---------- | ---------- | --------- | --- |
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| | √   | √          | √            | 未测       | √          | √         | √   |
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| 
 | ||
| ## 安装
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| 在市场导入**[海报画板](https://ext.dcloud.net.cn/plugin?id=2389)uni_modules**版本的即可,无需`import`
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| 
 | ||
| ## 代码演示
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| 
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| ### 插件demo
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| - lime-painter 为 demo
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| - 位于 uni_modules/lime-painter/components/lime-painter
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| - 导入插件后直接使用可查看demo
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| ```vue
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| <lime-painter />
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| ```
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| 
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| 
 | ||
| ### 基本用法
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| 
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| - 插件提供 JSON 及 Template 的方式绘制海报
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| - 参考 css 块状流布局模拟 css schema。
 | ||
| - 另外flex布局还不是成完善,请谨慎使用,普通的流布局我觉得已经够用了。
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| 
 | ||
| #### 方式一 Template
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| 
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| - 提供`l-painter-view`、`l-painter-text`、`l-painter-image`、`l-painter-qrcode`四种类型组件
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| - 通过 `css` 属性绘制样式,与 style 使用方式保持一致。
 | ||
| ```html
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| <l-painter>
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| 	//如果使用Template出现顺序错乱,可使用`template` 等所有变量完成再显示
 | ||
| 	<template v-if="show">
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| 		<l-painter-view
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| 			css="background: #07c160; height: 120rpx; width: 120rpx; display: inline-block"
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| 		></l-painter-view>
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| 		<l-painter-view
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| 			css="background: #1989fa; height: 120rpx; width: 120rpx; border-top-right-radius: 60rpx; border-bottom-left-radius: 60rpx; display: inline-block; margin: 0 30rpx;"
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| 		></l-painter-view>
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| 		<l-painter-view
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| 			css="background: #ff9d00; height: 120rpx; width: 120rpx; border-radius: 50%; display: inline-block"
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| 		></l-painter-view>
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| 	<template>
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| </l-painter>
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| ```
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| 
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| #### 方式二 JSON
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| 
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| - 在 json 里四种类型组件的`type`为`view`、`text`、`image`、`qrcode`
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| - 通过 `board` 设置海报所需的 JSON 数据进行绘制或`ref`获取组件实例调用组件内的`render(json)`
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| - 所有类型的 schema 都具有`css`字段,css 的 key 值使用**驼峰**如:`lineHeight`
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| 
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| ```html
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| <l-painter :board="poster"/>
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| ```
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| 
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| ```js
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| data() {
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| 	return {
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| 		poster: {
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| 			css: {
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| 				// 根节点若无尺寸,自动获取父级节点
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| 				width: '750rpx'
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| 			},
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| 			views: [
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| 				{
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| 					css: {
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| 						background: "#07c160",
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| 						height: "120rpx",
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| 						width: "120rpx",
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| 						display: "inline-block"
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| 					},
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| 					type: "view"
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| 				},
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| 				{
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| 					css: {
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| 						background: "#1989fa",
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| 						height: "120rpx",
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| 						width: "120rpx",
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| 						borderTopRightRadius: "60rpx",
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| 						borderBottomLeftRadius: "60rpx",
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| 						display: "inline-block",
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| 						margin: "0 30rpx"
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| 					},
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| 					views: [],
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| 					type: "view"
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| 				},
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| 				{
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| 					css: {
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| 						background: "#ff9d00",
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| 						height: "120rpx",
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| 						width: "120rpx",
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| 						borderRadius: "50%",
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| 						display: "inline-block"
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| 					},
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| 					views: [],
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| 					type: "view"
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| 				},
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| 			]
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| 		}
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| 	}
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| }
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| ```
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| 
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| ### View 容器
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| 
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| - 类似于 `div` 可以嵌套承载更多的 view、text、image,qrcode 共同构建一颗完整的节点树
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| - 在 JSON 里具有 `views` 的数组字段,用于嵌套承载节点。
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| 
 | ||
| #### 方式一 Template
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| 
 | ||
| ```html
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| <l-painter>
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|   <l-painter-view css="background: #f0f0f0; padding-top: 100rpx;">
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|     <l-painter-view
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|       css="background: #d9d9d9; width: 33.33%; height: 100rpx; display: inline-block"
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|     ></l-painter-view>
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|     <l-painter-view
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|       css="background: #bfbfbf; width: 66.66%; height: 100rpx; display: inline-block"
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|     ></l-painter-view>
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|   </l-painter-view>
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| </l-painter>
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| ```
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| 
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| #### 方式二 JSON
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| 
 | ||
| ```js
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| {
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| 	css: {},
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| 	views: [
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| 		{
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| 			type: 'view',
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| 			css: {
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| 				background: '#f0f0f0',
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| 				paddingTop: '100rpx'
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| 			},
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| 			views: [
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| 				{
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| 					type: 'view',
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| 					css: {
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| 						background: '#d9d9d9',
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| 						width: '33.33%',
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| 						height: '100rpx',
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| 						display: 'inline-block'
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| 					}
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| 				},
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| 				{
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| 					type: 'view',
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| 					css: {
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| 						background: '#bfbfbf',
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| 						width: '66.66%',
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| 						height: '100rpx',
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| 						display: 'inline-block'
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| 					}
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| 				}
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| 			],
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| 
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| 		}
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| 	]
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| }
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| ```
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| 
 | ||
| ### Text 文本
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| 
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| - 通过 `text` 属性填写文本内容。
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| - 支持`\n`换行符
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| - 支持省略号,使用 css 的`line-clamp`设置行数,当文字内容超过会显示省略号。
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| - 支持`text-decoration`
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| 
 | ||
| #### 方式一 Template
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| 
 | ||
| ```html
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| <l-painter>
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|   <l-painter-view css="background: #e0e2db; padding: 30rpx; color: #222a29">
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|     <l-painter-text
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|       text="登鹳雀楼\n白日依山尽,黄河入海流\n欲穷千里目,更上一层楼"
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|     />
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|     <l-painter-text
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|       text="登鹳雀楼\n白日依山尽,黄河入海流\n欲穷千里目,更上一层楼"
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|       css="text-align:center; padding-top: 20rpx; text-decoration: line-through "
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|     />
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|     <l-painter-text
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|       text="登鹳雀楼\n白日依山尽,黄河入海流\n欲穷千里目,更上一层楼"
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|       css="text-align:right; padding-top: 20rpx"
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|     />
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|     <l-painter-text
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|       text="水调歌头\n明月几时有?把酒问青天。不知天上宫阙,今夕是何年。我欲乘风归去,又恐琼楼玉宇,高处不胜寒。起舞弄清影,何似在人间。"
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|       css="line-clamp: 3; padding-top: 20rpx; background: linear-gradient(,#ff971b 0%, #ff5000 100%); background-clip: text"
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|     />
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|   </l-painter-view>
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| </l-painter>
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| ```
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| 
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| #### 方式二 JSON
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| 
 | ||
| ```js
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| // 基础用法
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| {
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| 	type: 'text',
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| 	text: '登鹳雀楼\n白日依山尽,黄河入海流\n欲穷千里目,更上一层楼',
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| },
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| {
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| 	type: 'text',
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| 	text: '登鹳雀楼\n白日依山尽,黄河入海流\n欲穷千里目,更上一层楼',
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| 	css: {
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| 		// 设置居中对齐
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| 		textAlign: 'center',
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| 		// 设置中划线
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| 		textDecoration: 'line-through'
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| 	}
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| },
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| {
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| 	type: 'text',
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| 	text: '登鹳雀楼\n白日依山尽,黄河入海流\n欲穷千里目,更上一层楼',
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| 	css: {
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| 		// 设置右对齐
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| 		textAlign: 'right',
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| 	}
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| },
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| {
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| 	type: 'text',
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| 	text: '登鹳雀楼\n白日依山尽,黄河入海流\n欲穷千里目,更上一层楼',
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| 	css: {
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| 		// 设置行数,超出显示省略号
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| 		lineClamp: 3,
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| 		// 渐变文字
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| 		background: 'linear-gradient(,#ff971b 0%, #1989fa 100%)',
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| 		backgroundClip: 'text'
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| 	}
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| }
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| ```
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| 
 | ||
| ### Image 图片
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| 
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| - 通过 `src` 属性填写图片路径。
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| - 图片路径支持:网络图片,本地 static 里的图片路径,缓存路径,**字节的static目录是写相对路径**
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| - 通过 `css` 的 `object-fit`属性可以设置图片的填充方式,可选值见下方 CSS 表格。
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| - 通过 `css` 的 `object-position`配合 `object-fit` 可以设置图片的对齐方式,类似于`background-position`,详情见下方 CSS 表格。
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| - 使用网络图片时:小程序需要去公众平台配置 [downloadFile](https://mp.weixin.qq.com/) 域名
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| - 使用网络图片时:**H5 和 Nvue 需要决跨域问题**
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| 
 | ||
| #### 方式一 Template
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| 
 | ||
| ```html
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| <l-painter>
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|   <!-- 基础用法 -->
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|   <l-painter-image
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|     src="https://m.360buyimg.com/babel/jfs/t1/196317/32/13733/288158/60f4ea39E6fb378ed/d69205b1a8ed3c97.jpg"
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|     css="width: 200rpx; height: 200rpx"
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|   />
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|   <!-- 填充方式 -->
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|   <!-- css object-fit 设置 填充方式 见下方表格-->
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|   <l-painter-image
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|     src="https://m.360buyimg.com/babel/jfs/t1/196317/32/13733/288158/60f4ea39E6fb378ed/d69205b1a8ed3c97.jpg"
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|     css="width: 200rpx; height: 200rpx; object-fit: contain; background: #eee"
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|   />
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|   <!-- css object-position 设置 图片的对齐方式-->
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|   <l-painter-image
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|     src="https://m.360buyimg.com/babel/jfs/t1/196317/32/13733/288158/60f4ea39E6fb378ed/d69205b1a8ed3c97.jpg"
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|     css="width: 200rpx; height: 200rpx; object-fit: contain; object-position: 50% 50%; background: #eee"
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|   />
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| </l-painter>
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| ```
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| 
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| #### 方式二 JSON
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| 
 | ||
| ```js
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| // 基础用法
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| {
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| 	type: 'image',
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| 	src: 'https://m.360buyimg.com/babel/jfs/t1/196317/32/13733/288158/60f4ea39E6fb378ed/d69205b1a8ed3c97.jpg',
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| 	css: {
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| 		width: '200rpx',
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| 		height: '200rpx'
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| 	}
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| },
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| // 填充方式
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| // css objectFit 设置 填充方式 见下方表格
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| {
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| 	type: 'image',
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| 	src: 'https://m.360buyimg.com/babel/jfs/t1/196317/32/13733/288158/60f4ea39E6fb378ed/d69205b1a8ed3c97.jpg',
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| 	css: {
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| 		width: '200rpx',
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| 		height: '200rpx',
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| 		objectFit: 'contain'
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| 	}
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| },
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| // css objectPosition 设置 图片的对齐方式
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| {
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| 	type: 'image',
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| 	src: 'https://m.360buyimg.com/babel/jfs/t1/196317/32/13733/288158/60f4ea39E6fb378ed/d69205b1a8ed3c97.jpg',
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| 	css: {
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| 		width: '200rpx',
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| 		height: '200rpx',
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| 		objectFit: 'contain',
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| 		objectPosition: '50% 50%'
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| 	}
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| }
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| ```
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| 
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| ### Qrcode 二维码
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| 
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| - 通过`text`属性填写需要生成二维码的文本。
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| - 通过 `css` 里的 `color` 可设置生成码点的颜色。
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| - 通过 `css` 里的 `background`可设置背景色。
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| - 通过 `css `里的 `width`、`height`设置尺寸。
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| 
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| #### 方式一 Template
 | ||
| 
 | ||
| ```html
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| <l-painter>
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|   <l-painter-qrcode
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|     text="limeui.qcoon.cn"
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|     css="width: 200rpx; height: 200rpx"
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|   />
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| </l-painter>
 | ||
| ```
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| 
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| #### 方式二 JSON
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| 
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| ```js
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| {
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| 	type: 'qrcode',
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| 	text: 'limeui.qcoon.cn',
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| 	css: {
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| 		width: '200rpx',
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| 		height: '200rpx',
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| 	}
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| }
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| ```
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| 
 | ||
| ### 富文本
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| - 这是一个有限支持的测试能力,只能通过JSON方式,不要抱太大希望!
 | ||
| - 首先需要把富文本转成JSON,这需要引入`parser`这个包,如果你不使用是不会进入主包
 | ||
| 
 | ||
| ```html
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| <l-painter ref="painter"/>
 | ||
| ```
 | ||
| ```js
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| import parseHtml from '@/uni_modules/lime-painter/parser'
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| const json = parseHtml(`<p><span>测试测试</span><img src="/static/logo.png"/></p>`)
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| this.$refs.painter.render(json)
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| ```
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| 
 | ||
| ### 生成图片
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| 
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| - 方式1、通过设置`isCanvasToTempFilePath`自动生成图片并在 `@success` 事件里接收海报临时路径
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| - 方式2、通过调用内部方法生成图片:
 | ||
| 
 | ||
| ```html
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| <l-painter ref="painter">...code</l-painter>
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| ```
 | ||
| 
 | ||
| ```js
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| this.$refs.painter.canvasToTempFilePathSync({
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|   fileType: "jpg",
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|   // 如果返回的是base64是无法使用 saveImageToPhotosAlbum,需要设置 pathType为url
 | ||
|   pathType: 'url',
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|   quality: 1,
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|   success: (res) => {
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|     console.log(res.tempFilePath);
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| 	// 非H5 保存到相册
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| 	// H5 提示用户长按图另存
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| 	uni.saveImageToPhotosAlbum({
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| 		filePath: res.tempFilePath,
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| 		success: function () {
 | ||
| 			console.log('save success');
 | ||
| 		}
 | ||
| 	});
 | ||
|   },
 | ||
| });
 | ||
| ```
 | ||
| 
 | ||
| ### 主动调用方式
 | ||
| 
 | ||
| - 通过获取组件实例内部的`render`函数 传递`JSON`即可
 | ||
| 
 | ||
| ```html
 | ||
| <l-painter ref="painter" />
 | ||
| ```
 | ||
| 
 | ||
| ```js
 | ||
| // 渲染
 | ||
| this.$refs.painter.render(jsonSchema);
 | ||
| // 生成图片
 | ||
| this.$refs.painter.canvasToTempFilePathSync({
 | ||
|   fileType: "jpg",
 | ||
|   // 如果返回的是base64是无法使用 saveImageToPhotosAlbum,需要设置 pathType为url
 | ||
|   pathType: 'url',
 | ||
|   quality: 1,
 | ||
|   success: (res) => {
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|     console.log(res.tempFilePath);
 | ||
| 	// 非H5 保存到相册
 | ||
| 	uni.saveImageToPhotosAlbum({
 | ||
| 		filePath: res.tempFilePath,
 | ||
| 		success: function () {
 | ||
| 			console.log('save success');
 | ||
| 		}
 | ||
| 	});
 | ||
|   },
 | ||
| });
 | ||
| ```
 | ||
| 
 | ||
| 
 | ||
| ### H5跨域
 | ||
| - 一般是需要后端或管理OSS资源的大佬处理
 | ||
| - 一般OSS的处理方式:
 | ||
| 
 | ||
| 1、设置来源
 | ||
| ```cmd
 | ||
| *
 | ||
| ```
 | ||
| 
 | ||
| 2、允许Methods
 | ||
| ```html
 | ||
| GET
 | ||
| ```
 | ||
| 
 | ||
| 3、允许Headers
 | ||
| ```html
 | ||
| access-control-allow-origin:*
 | ||
| ```
 | ||
| 
 | ||
| 4、最后如果还是不行,可试下给插件设置`useCORS`
 | ||
| ```html
 | ||
| <l-painter useCORS>
 | ||
| ```
 | ||
| 
 | ||
| 
 | ||
| 
 | ||
| ### 海报示例
 | ||
| 
 | ||
| - 提供一份示例,只把插件当成生成图片的工具,非必要不要在弹窗里使用。
 | ||
| - 通过设置`isCanvasToTempFilePath`主动生成图片,再由 `@success` 事件接收海报临时路径
 | ||
| - 设置`hidden`隐藏画板。
 | ||
| 请注意,示例用到了图片,海报的渲染是包括下载图片的时间,也许在某天图片会失效或访问超级慢,请更换为你的图片再查看,另外如果你是小程序请在使用示例时把**不校验合法域名**勾上!!!!!不然不显示还以为是插件的锅,求求了大佬们!
 | ||
| #### 方式一 Template
 | ||
| 
 | ||
| ```html
 | ||
| <image :src="path" mode="widthFix"></image>
 | ||
| <l-painter
 | ||
|   isCanvasToTempFilePath
 | ||
|   @success="path = $event"
 | ||
|   hidden
 | ||
|   css="width: 750rpx; padding-bottom: 40rpx; background: linear-gradient(,#ff971b 0%, #ff5000 100%)"
 | ||
| >
 | ||
|   <l-painter-image
 | ||
|     src="https://m.360buyimg.com/babel/jfs/t1/196317/32/13733/288158/60f4ea39E6fb378ed/d69205b1a8ed3c97.jpg"
 | ||
|     css="margin-left: 40rpx; margin-top: 40rpx; width: 84rpx;  height: 84rpx; border-radius: 50%;"
 | ||
|   />
 | ||
|   <l-painter-view
 | ||
|     css="margin-top: 40rpx; padding-left: 20rpx; display: inline-block"
 | ||
|   >
 | ||
|     <l-painter-text
 | ||
|       text="隔壁老王"
 | ||
|       css="display: block; padding-bottom: 10rpx; color: #fff; font-size: 32rpx; fontWeight: bold"
 | ||
|     />
 | ||
|     <l-painter-text
 | ||
|       text="为您挑选了一个好物"
 | ||
|       css="color: rgba(255,255,255,.7); font-size: 24rpx"
 | ||
|     />
 | ||
|   </l-painter-view>
 | ||
|   <l-painter-view
 | ||
|     css="margin-left: 40rpx; margin-top: 30rpx; padding: 32rpx; box-sizing: border-box; background: #fff; border-radius: 16rpx; width: 670rpx; box-shadow: 0 20rpx 58rpx rgba(0,0,0,.15)"
 | ||
|   >
 | ||
|     <l-painter-image
 | ||
|       src="https://m.360buyimg.com/babel/jfs/t1/196317/32/13733/288158/60f4ea39E6fb378ed/d69205b1a8ed3c97.jpg"
 | ||
|       css="object-fit: cover; object-position: 50% 50%; width: 606rpx; height: 606rpx; border-radius: 12rpx;"
 | ||
|     />
 | ||
|     <l-painter-view
 | ||
|       css="margin-top: 32rpx; color: #FF0000; font-weight: bold; font-size: 28rpx; line-height: 1em;"
 | ||
|     >
 | ||
|       <l-painter-text text="¥" css="vertical-align: bottom" />
 | ||
|       <l-painter-text
 | ||
|         text="39"
 | ||
|         css="vertical-align: bottom; font-size: 58rpx"
 | ||
|       />
 | ||
|       <l-painter-text text=".39" css="vertical-align: bottom" />
 | ||
|       <l-painter-text
 | ||
|         text="¥59.99"
 | ||
|         css="vertical-align: bottom; padding-left: 10rpx; font-weight: normal; text-decoration: line-through; color: #999999"
 | ||
|       />
 | ||
|     </l-painter-view>
 | ||
|     <l-painter-view css="margin-top: 32rpx; font-size: 26rpx; color: #8c5400">
 | ||
|       <l-painter-text text="自营" css="color: #212121; background: #ffb400;" />
 | ||
|       <l-painter-text
 | ||
|         text="30天最低价"
 | ||
|         css="margin-left: 16rpx; background: #fff4d9; text-decoration: line-through;"
 | ||
|       />
 | ||
|       <l-painter-text
 | ||
|         text="满减优惠"
 | ||
|         css="margin-left: 16rpx; background: #fff4d9"
 | ||
|       />
 | ||
|       <l-painter-text
 | ||
|         text="超高好评"
 | ||
|         css="margin-left: 16rpx; background: #fff4d9"
 | ||
|       />
 | ||
|     </l-painter-view>
 | ||
|     <l-painter-view css="margin-top: 30rpx">
 | ||
|       <l-painter-text
 | ||
|         css="line-clamp: 2; color: #333333; line-height: 1.8em; font-size: 36rpx; width: 478rpx; padding-right:32rpx; box-sizing: border-box"
 | ||
|         text="360儿童电话手表9X 智能语音问答定位支付手表 4G全网通20米游泳级防水视频通话拍照手表男女孩星空蓝"
 | ||
|       ></l-painter-text>
 | ||
|       <l-painter-qrcode
 | ||
|         css="width: 128rpx; height: 128rpx;"
 | ||
|         text="limeui.qcoon.cn"
 | ||
|       ></l-painter-qrcode>
 | ||
|     </l-painter-view>
 | ||
|   </l-painter-view>
 | ||
| </l-painter>
 | ||
| ```
 | ||
| 
 | ||
| ```js
 | ||
| data() {
 | ||
| 	return {
 | ||
| 		path: ''
 | ||
| 	}
 | ||
| }
 | ||
| ```
 | ||
| 
 | ||
| #### 方式二 JSON
 | ||
| 
 | ||
| ```html
 | ||
| <image :src="path" mode="widthFix"></image>
 | ||
| <l-painter
 | ||
|   :board="poster"
 | ||
|   isCanvasToTempFilePath
 | ||
|   @success="path = $event"
 | ||
|   hidden
 | ||
| />
 | ||
| ```
 | ||
| 
 | ||
| ```js
 | ||
| data() {
 | ||
| 	return {
 | ||
| 		path: '',
 | ||
| 		poster: {
 | ||
| 		    css: {
 | ||
| 		        width: "750rpx",
 | ||
| 		        paddingBottom: "40rpx",
 | ||
| 		        background: "linear-gradient(,#000 0%, #ff5000 100%)"
 | ||
| 		    },
 | ||
| 		    views: [
 | ||
| 		        {
 | ||
| 		            src: "https://m.360buyimg.com/babel/jfs/t1/196317/32/13733/288158/60f4ea39E6fb378ed/d69205b1a8ed3c97.jpg",
 | ||
| 		            type: "image",
 | ||
| 		            css: {
 | ||
| 		                background: "#fff",
 | ||
| 		                objectFit: "cover",
 | ||
| 		                marginLeft: "40rpx",
 | ||
| 		                marginTop: "40rpx",
 | ||
| 		                width: "84rpx",
 | ||
| 		                border: "2rpx solid #fff",
 | ||
| 		                boxSizing: "border-box",
 | ||
| 		                height: "84rpx",
 | ||
| 		                borderRadius: "50%"
 | ||
| 		            }
 | ||
| 		        },
 | ||
| 		        {
 | ||
| 		            type: "view",
 | ||
| 		            css: {
 | ||
| 		                marginTop: "40rpx",
 | ||
| 		                paddingLeft: "20rpx",
 | ||
| 		                display: "inline-block"
 | ||
| 		            },
 | ||
| 		            views: [
 | ||
| 		                {
 | ||
| 		                    text: "隔壁老王",
 | ||
| 		                    type: "text",
 | ||
| 		                    css: {
 | ||
| 		                        display: "block",
 | ||
| 		                        paddingBottom: "10rpx",
 | ||
| 		                        color: "#fff",
 | ||
| 		                        fontSize: "32rpx",
 | ||
| 		                        fontWeight: "bold"
 | ||
| 		                    }
 | ||
| 		                },
 | ||
| 		                {
 | ||
| 		                    text: "为您挑选了一个好物",
 | ||
| 		                    type: "text",
 | ||
| 		                    css: {
 | ||
| 		                        color: "rgba(255,255,255,.7)",
 | ||
| 		                        fontSize: "24rpx"
 | ||
| 		                    },
 | ||
| 		                }
 | ||
| 		            ],
 | ||
| 		        },
 | ||
| 		        {
 | ||
| 		            css: {
 | ||
| 		                marginLeft: "40rpx",
 | ||
| 		                marginTop: "30rpx",
 | ||
| 		                padding: "32rpx",
 | ||
| 		                boxSizing: "border-box",
 | ||
| 		                background: "#fff",
 | ||
| 		                borderRadius: "16rpx",
 | ||
| 		                width: "670rpx",
 | ||
| 		                boxShadow: "0 20rpx 58rpx rgba(0,0,0,.15)"
 | ||
| 		            },
 | ||
| 		            views: [
 | ||
| 		                {
 | ||
| 							src: "https://m.360buyimg.com/babel/jfs/t1/196317/32/13733/288158/60f4ea39E6fb378ed/d69205b1a8ed3c97.jpg",
 | ||
| 							type: "image",
 | ||
| 		                    css: {
 | ||
| 		                        objectFit: "cover",
 | ||
| 		                        objectPosition: "50% 50%",
 | ||
| 		                        width: "606rpx",
 | ||
| 		                        height: "606rpx"
 | ||
| 		                    },
 | ||
| 		                }, {
 | ||
| 		                    css: {
 | ||
| 		                        marginTop: "32rpx",
 | ||
| 		                        color: "#FF0000",
 | ||
| 		                        fontWeight: "bold",
 | ||
| 		                        fontSize: "28rpx",
 | ||
| 		                        lineHeight: "1em"
 | ||
| 		                    },
 | ||
| 		                    views: [{
 | ||
| 								text: "¥",
 | ||
| 								type: "text",
 | ||
| 		                        css: {
 | ||
| 		                            verticalAlign: "bottom"
 | ||
| 		                        },
 | ||
| 		                    }, {
 | ||
| 								text: "39",
 | ||
| 								type: "text",
 | ||
| 		                        css: {
 | ||
| 		                            verticalAlign: "bottom",
 | ||
| 		                            fontSize: "58rpx"
 | ||
| 		                        },
 | ||
| 		                    }, {
 | ||
| 								text: ".39",
 | ||
| 								type: "text",
 | ||
| 		                        css: {
 | ||
| 		                            verticalAlign: "bottom"
 | ||
| 		                        },
 | ||
| 		                    }, {
 | ||
| 								text: "¥59.99",
 | ||
| 								type: "text",
 | ||
| 		                        css: {
 | ||
| 		                            verticalAlign: "bottom",
 | ||
| 		                            paddingLeft: "10rpx",
 | ||
| 		                            fontWeight: "normal",
 | ||
| 		                            textDecoration: "line-through",
 | ||
| 		                            color: "#999999"
 | ||
| 		                        }
 | ||
| 		                    }],
 | ||
| 
 | ||
| 		                    type: "view"
 | ||
| 		                }, {
 | ||
| 		                    css: {
 | ||
| 		                        marginTop: "32rpx",
 | ||
| 		                        fontSize: "26rpx",
 | ||
| 		                        color: "#8c5400"
 | ||
| 		                    },
 | ||
| 		                    views: [{
 | ||
| 								text: "自营",
 | ||
| 								type: "text",
 | ||
| 		                        css: {
 | ||
| 		                            color: "#212121",
 | ||
| 		                            background: "#ffb400"
 | ||
| 		                        },
 | ||
| 		                    }, {
 | ||
| 								text: "30天最低价",
 | ||
| 								type: "text",
 | ||
| 		                        css: {
 | ||
| 		                            marginLeft: "16rpx",
 | ||
| 		                            background: "#fff4d9",
 | ||
| 		                            textDecoration: "line-through"
 | ||
| 		                        },
 | ||
| 		                    }, {
 | ||
| 								text: "满减优惠",
 | ||
| 								type: "text",
 | ||
| 		                        css: {
 | ||
| 		                            marginLeft: "16rpx",
 | ||
| 		                            background: "#fff4d9"
 | ||
| 		                        },
 | ||
| 		                    }, {
 | ||
| 								text: "超高好评",
 | ||
| 								type: "text",
 | ||
| 		                        css: {
 | ||
| 		                            marginLeft: "16rpx",
 | ||
| 		                            background: "#fff4d9"
 | ||
| 		                        },
 | ||
| 
 | ||
| 		                    }],
 | ||
| 
 | ||
| 		                    type: "view"
 | ||
| 		                }, {
 | ||
| 		                    css: {
 | ||
| 		                        marginTop: "30rpx"
 | ||
| 		                    },
 | ||
| 		                    views: [
 | ||
| 								{
 | ||
| 									text: "360儿童电话手表9X 智能语音问答定位支付手表 4G全网通20米游泳级防水视频通话拍照手表男女孩星空蓝",
 | ||
| 									type: "text",
 | ||
| 									css: {
 | ||
| 										paddingRight: "32rpx",
 | ||
| 										boxSizing: "border-box",
 | ||
| 										lineClamp: 2,
 | ||
| 										color: "#333333",
 | ||
| 										lineHeight: "1.8em",
 | ||
| 										fontSize: "36rpx",
 | ||
| 										width: "478rpx"
 | ||
| 		                        },
 | ||
| 		                    }, {
 | ||
| 								text: "limeui.qcoon.cn",
 | ||
| 								type: "qrcode",
 | ||
| 		                        css: {
 | ||
| 		                            width: "128rpx",
 | ||
| 		                            height: "128rpx",
 | ||
| 		                        },
 | ||
| 
 | ||
| 		                    }],
 | ||
| 		                    type: "view"
 | ||
| 		                }],
 | ||
| 		            type: "view"
 | ||
| 		        }
 | ||
| 		    ]
 | ||
| 		}
 | ||
| 	}
 | ||
| }
 | ||
| ```
 | ||
| 
 | ||
| 
 | ||
| ### 自定义字体
 | ||
| - 需要平台的支持,已知微信小程序支持,其它的没试过,如果可行请告之
 | ||
| 
 | ||
| ```
 | ||
| // 需要在app.vue中下载字体
 | ||
| uni.loadFontFace({
 | ||
| 	global:true,
 | ||
| 	scopes: ['native'],
 | ||
| 	family: '自定义字体名称',
 | ||
| 	source: 'url("https://sungd.github.io/Pacifico.ttf")',
 | ||
|   
 | ||
| 	success() {
 | ||
| 	  console.log('success')
 | ||
|   }
 | ||
| })
 | ||
| 
 | ||
| 
 | ||
| // 然后就可以在插件的css中写font-family: '自定义字体名称'
 | ||
| ```
 | ||
| 
 | ||
| 
 | ||
| ### Nvue
 | ||
| - 必须为HBX 3.4.11及以上
 | ||
| 
 | ||
| 
 | ||
| ### 原生小程序
 | ||
| 
 | ||
| - 插件里的`painter.js`支持在原生小程序中使用
 | ||
| - new Painter 之后在`source`里传入 JSON
 | ||
| - 再调用`render`绘制海报
 | ||
| - 如需生成图片,请查看微信小程序 cavnas 的[canvasToTempFilePath](https://developers.weixin.qq.com/miniprogram/dev/api/canvas/wx.canvasToTempFilePath.html)
 | ||
| 
 | ||
| ```html
 | ||
| <canvas type="2d" id="painter" style="width: 100%"></canvas>
 | ||
| ```
 | ||
| 
 | ||
| ```js
 | ||
| import { Painter } from "./painter";
 | ||
| page({
 | ||
|   data: {
 | ||
|     poster: {
 | ||
|       css: {
 | ||
|         width: "750rpx",
 | ||
|       },
 | ||
|       views: [
 | ||
|         {
 | ||
|           type: "view",
 | ||
|           css: {
 | ||
|             background: "#d2d4c8",
 | ||
|             paddingTop: "100rpx",
 | ||
|           },
 | ||
|           views: [
 | ||
|             {
 | ||
|               type: "view",
 | ||
|               css: {
 | ||
|                 background: "#5f7470",
 | ||
|                 width: "33.33%",
 | ||
|                 height: "100rpx",
 | ||
|                 display: "inline-block",
 | ||
|               },
 | ||
|             },
 | ||
|             {
 | ||
|               type: "view",
 | ||
|               css: {
 | ||
|                 background: "#889696",
 | ||
|                 width: "33.33%",
 | ||
|                 height: "100rpx",
 | ||
|                 display: "inline-block",
 | ||
|               },
 | ||
|             },
 | ||
|             {
 | ||
|               type: "view",
 | ||
|               css: {
 | ||
|                 background: "#b8bdb5",
 | ||
|                 width: "33.33%",
 | ||
|                 height: "100rpx",
 | ||
|                 display: "inline-block",
 | ||
|               },
 | ||
|             },
 | ||
|           ],
 | ||
|         },
 | ||
|       ],
 | ||
|     },
 | ||
|   },
 | ||
|   async onLoad() {
 | ||
|     const res = await this.getCentext();
 | ||
|     const painter = new Painter(res);
 | ||
|     // 返回计算布局后的整个内容尺寸
 | ||
|     const { width, height } = await painter.source(this.data.poster);
 | ||
|     // 得到计算后的尺寸后 可给canvas尺寸赋值,达到动态响应效果
 | ||
|     // 渲染
 | ||
|     await painter.render();
 | ||
|   },
 | ||
|   // 获取canvas 2d
 | ||
|   // 非2d 需要传一个 createImage 方法用于获取图片信息 即把 getImageInfo 的 success 通过 promise resolve 返回
 | ||
|   getCentext() {
 | ||
|     return new Promise((resolve) => {
 | ||
|       wx.createSelectorQuery()
 | ||
|         .select(`#painter`)
 | ||
|         .node()
 | ||
|         .exec((res) => {
 | ||
|           let { node: canvas } = res[0];
 | ||
|           resolve({
 | ||
|             canvas,
 | ||
|             context: canvas.getContext("2d"),
 | ||
|             width: canvas.width,
 | ||
|             height: canvas.height,
 | ||
| 			// createImage: getImageInfo()
 | ||
|             pixelRatio: 2,
 | ||
|           });
 | ||
|         });
 | ||
|     });
 | ||
|   },
 | ||
| });
 | ||
| ```
 | ||
| 
 | ||
| ### 旧版(1.6.x)更新
 | ||
| 
 | ||
| - 由于 1.8.x 版放弃了以定位的方式,所以 1.6.x 版更新之后要每个样式都加上`position: absolute`
 | ||
| - 旧版的 `image` mode 模式被放弃,使用`object-fit`
 | ||
| - 旧版的 `isRenderImage` 改成 `is-canvas-to-temp-file-path`
 | ||
| - 旧版的 `maxLines` 改成 `line-clamp`
 | ||
| 
 | ||
| ## API
 | ||
| 
 | ||
| ### Props
 | ||
| 
 | ||
| | 参数                       | 说明                                                         | 类型             | 默认值       |
 | ||
| | -------------------------- | ------------------------------------------------------------ | ---------------- | ------------ |
 | ||
| | board                      | JSON 方式的海报元素对象集                                    | <em>object</em>  | -            |
 | ||
| | css                        | 海报内容最外层的样式,可以理解为`body`                           | <em>object</em>  | 参数请向下看 |
 | ||
| | custom-style               | canvas 元素的样式                                            | <em>string</em>  |              |
 | ||
| | hidden               		 | 隐藏画板                                                    | <em>boolean</em>  |   `false`    |
 | ||
| | is-canvas-to-temp-file-path | 是否生成图片,在`@success`事件接收图片地址                   | <em>boolean</em> | `false`      |
 | ||
| | after-delay                | 生成图片错乱,可延时生成图片                                 | <em>number</em>  | `100`        |
 | ||
| | type                       | canvas 类型,对微信头条支付宝小程序可有效,可选值:`2d`,`''` | <em>string</em>  | `2d`         |
 | ||
| | file-type                  | 生成图片的后缀类型, 可选值:`png`、`jpg`                     | <em>string</em>  | `png`        |
 | ||
| | path-type                  | 生成图片路径类型,可选值`url`、`base64`                      | <em>string</em>  | `-`          |
 | ||
| | pixel-ratio                | 生成图片的像素密度,默认为对应手机的像素密度,`nvue`无效     | <em>number</em>  | `-`          |
 | ||
| | hidpi                | H5和APP是否使用高清处理     | <em>boolean</em>  | `true`          |
 | ||
| | width                      | **废弃** 画板的宽度,一般只用于通过内部方法时加上            | <em>number</em>  | ``           |
 | ||
| | height                     | **废弃** 画板的高度 ,同上                                   | <em>number</em>  | ``           |
 | ||
| 
 | ||
| ### css
 | ||
| | 属性名                                                                              | 支持的值或类型                                                                                                                                                                       | 默认值   |
 | ||
| | ----------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | -------- |
 | ||
| | (min\max)width                                                                      | 支持`%`、`rpx`、`px`                                                                                                                                                                 | -        |
 | ||
| | height                                                                              | 同上                                                                                                                                                                                 | -        |
 | ||
| | color                                                                               | `string`                                                                                                                                                                             | -        |
 | ||
| | position                                                                            | 定位,可选值:`absolute`、`fixed`                                                                                                                                                    | -        |
 | ||
| | ↳ left、top、right、bottom                                                          | 配合`position`才生效,支持`%`、`rpx`、`px`                                                                                                                                           | -        |
 | ||
| | margin                                                                              | 可简写或各方向分别写,如:`margin-top`,支持`auto`、`rpx`、`px`                                                                                                                      | -        |
 | ||
| | padding                                                                             | 可简写或各方向分别写,支持`rpx`、`px`                                                                                                                                                | -        |
 | ||
| | border                                                                              | 可简写或各个值分开写:`border-width`、`border-style` 、`border-color`,简写请按顺序写                                                                                                | -        |
 | ||
| | line-clamp                                                                          | `number`,超过行数显示省略号                                                                                                                                                         | -        |
 | ||
| | vertical-align                                                                      | 文字垂直对齐,可选值:`bottom`、`top`、`middle`                                                                                                                                      | `middle` |
 | ||
| | line-height                                                                         | 文字行高,支持`rpx`、`px`、`em`                                                                                                                                                      | `1.4em`  |
 | ||
| | font-weight                                                                         | 文字粗细,可选值:`normal`、`bold`                                                                                                                                                   | `normal` |
 | ||
| | font-size                                                                           | 文字大小,`string`,支持`rpx`、`px`                                                                                                                                                  | `14px`   |
 | ||
| | text-decoration                                                                     | 文本修饰,可选值:`underline` 、`line-through`、`overline`                                                                                                                           | -        |
 | ||
| | text-stroke                                                                         | 文字描边,可简写或各个值分开写,如:`text-stroke-color`, `text-stroke-width`                                                                                                              | -        |
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| | text-align                                                                          | 文本水平对齐,可选值:`right` 、`center`                                                                                                                                             | `left`   |
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| | display                                                                             | 框类型,可选值:`block`、`inline-block`、`flex`、`none`,当为`none`时是不渲染该段, `flex`功能简陋。                                                                                                            | -        |
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| | flex                                                                                | 配合 display: flex; 属性定义了在分配多余空间,目前只用为数值如: flex: 1                                                                                                           | -        |
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| | align-self                                                                          | 配合 display: flex; 单个项目垂直轴对齐方式: `flex-start` `flex-end` `center`                                                                                                         | `flex-start`        |
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| | justify-content                                                                     | 配合 display: flex; 水平轴对齐方式: `flex-start` `flex-end` `center`                                                                                                         | `flex-start`        |
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| | align-items                                                                         | 配合 display: flex; 垂直轴对齐方式: `flex-start` `flex-end` `center`                                                                                                  | `flex-start`        |
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| | border-radius                                                                       | 圆角边框,支持`%`、`rpx`、`px`                                                                                                                                                       | -        |
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| | box-sizing                                                                          | 可选值:`border-box`                                                                                                                                                                 | -        |
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| | box-shadow                                                                          | 投影                                                                                                                                                                                 | -        |
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| | background(color)                                                                   | 支持渐变,但必须写百分比!如:`linear-gradient(,#ff971b 0%, #ff5000 100%)`、`radial-gradient(#0ff 15%, #f0f 60%)`,目前 radial-gradient 渐变的圆心为元素中点,半径为最长边,不支持设置 | -        |
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| | background-clip                                                                	  | 文字渐变,配合`background`背景渐变,设置`background-clip: text` 达到文字渐变效果 | -        |
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| | background-image                                                                    | view 元素背景:`url(src)`,若只是设置背景图,请不要设置`background-repeat`                                                                                                                                                           | -        |
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| | background-repeat                                                                   | 设置是否及如何重复背景纹理,可选值:`repeat`、`repeat-x`、`repeat-y`、`no-repeat`                                                                                                    | `repeat` |
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| | [object-fit](https://developer.mozilla.org/zh-CN/docs/Web/CSS/object-fit/)          | 图片元素适应容器方式,类似于`mode`,可选值:`cover`、 `contain`、 `fill`、 `none`                                                                                                      | -        |
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| | [object-position](https://developer.mozilla.org/zh-CN/docs/Web/CSS/object-position) | 图片的对齐方式,配合`object-fit`使用                                                                                                                                                 | -        |
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| 
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| ### 图片填充模式 object-fit
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| 
 | ||
| | 名称    | 含义                                                   |
 | ||
| | ------- | ------------------------------------------------------ |
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| | contain | 保持宽高缩放图片,使图片的长边能完全显示出来           |
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| | cover   | 保持宽高缩放图片,使图片的短边能完全显示出来,裁剪长边 |
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| | fill    | 拉伸图片,使图片填满元素                               |
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| | none    | 保持图片原有尺寸                                       |
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| 
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| ### 事件 Events
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| 
 | ||
| | 事件名   | 说明                                                             | 返回值 |
 | ||
| | -------- | ---------------------------------------------------------------- | ------ |
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| | success  | 生成图片成功,若使用`is-canvas-to-temp-filePath` 可以接收图片地址 | path   |
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| | fail     | 生成图片失败                                                     | error  |
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| | done     | 绘制成功                                                         |        |
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| | progress | 绘制进度                                                         | number |
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| 
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| ### 暴露函数 Expose
 | ||
| | 事件名   | 说明                                                             | 返回值 |
 | ||
| | -------- | ---------------------------------------------------------------- | ------ |
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| | render(object)   |  渲染器,传入JSON 绘制海报 | promise   |
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| | [canvasToTempFilePath](https://uniapp.dcloud.io/api/canvas/canvasToTempFilePath.html#canvastotempfilepath)(object)   | 把当前画布指定区域的内容导出生成指定大小的图片,并返回文件临时路径。    |   |
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| | canvasToTempFilePathSync(object)    | 同步接口,同上                                                         |        |
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| 
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| 
 | ||
| ## 常见问题
 | ||
| 
 | ||
| - 1、H5 端使用网络图片需要解决跨域问题。
 | ||
| - 2、小程序使用网络图片需要去公众平台增加下载白名单!二级域名也需要配!
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| - 3、H5 端生成图片是 base64,有时显示只有一半可以使用原生标签`<IMG/>`
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| - 4、发生保存图片倾斜变形或提示 native buffer exceed size limit 时,使用 pixel-ratio="2"参数,降分辨率。
 | ||
| - 5、h5 保存图片不需要调接口,提示用户长按图片保存。
 | ||
| - 6、画板不能隐藏,包括`v-if`,`v-show`、`display:none`、`opacity:0`,另外也不要把画板放在弹窗里。如果需要隐藏画板请设置 `custom-style="position: fixed; left: 200%"`
 | ||
| - 7、微信小程序真机调试请使用 **真机调试2.0**,不支持1.0。
 | ||
| - 8、微信小程序打开调试时可以生但并闭无法生成时,这种情况一般是没有在公众号配置download域名
 | ||
| - 9、HBX 3.4.5之前的版本不支持vue3
 | ||
| - 10、在微信开发工具上 canvas 层级最高无法zindex,并不影响真机
 | ||
| - 11、请不要导入非uni_modules插件
 | ||
| - 12、关于QQ小程序 报 Propertyor method"toJSON"is not defined 请把基础库调到 1.50.3
 | ||
| - 13、支付宝小程序 IDE 不支持 生成图片 请以真机调试结果为准
 | ||
| - 14、返回值为字符串 `data:,` 大概是尺寸超过限制,设置 pixel-ratio="2"
 | ||
| - 华为手机 APP 上无法生成图片,请使用 HBX2.9.11++(已过时,忽略这条)
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| - IOS APP 请勿使用 HBX2.9.3.20201014 的版本!这个版本无法生成图片。(已过时,忽略这条)
 | ||
| - 苹果微信 7.0.20 存在闪退和图片无法 onload 为微信 bug(已过时,忽略这条)
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| - 微信小程序 IOS 旧接口 如父级设置圆角,子级也设会导致子级的失效,为旧接口BUG。
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| - 微信小程序 安卓 旧接口 如使用图片必须加背景色,为旧接口BUG。
 | ||
| - 微信小程序 安卓端 [图片可能在首次可以加载成功,再次加载会不触发任何事件](https://developers.weixin.qq.com/community/develop/doc/000ee2b8dacf4009337f51f4556800?highLine=canvas%25202d%2520createImage),临时解决方法是给图片加个时间戳
 | ||
| ## 打赏
 | ||
| 
 | ||
| 如果你觉得本插件,解决了你的问题,赠人玫瑰,手留余香。
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