mirror of
https://github.com/wanglin2/mind-map.git
synced 2026-02-17 22:08:25 +08:00
Feat:新增导出图片时添加自定义内容的实例化选项
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@@ -19,7 +19,8 @@ import {
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simpleDeepClone,
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getType,
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getObjectChangedProps,
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isUndef
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isUndef,
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handleGetSvgDataExtraContent
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} from './src/utils'
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import defaultTheme, {
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checkIsNodeSizeIndependenceConfig
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@@ -414,7 +415,18 @@ class MindMap {
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}
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// 获取svg数据
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getSvgData({ paddingX = 0, paddingY = 0, ignoreWatermark = false } = {}) {
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getSvgData({
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paddingX = 0,
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paddingY = 0,
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ignoreWatermark = false,
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addContentToHeader,
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addContentToFooter
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} = {}) {
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const { cssTextList, header, headerHeight, footer, footerHeight } =
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handleGetSvgDataExtraContent({
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addContentToHeader,
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addContentToFooter
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})
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const svg = this.svg
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const draw = this.draw
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// 保存原始信息
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@@ -427,8 +439,9 @@ class MindMap {
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// 获取变换后的位置尺寸信息,其实是getBoundingClientRect方法的包装方法
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const rect = draw.rbox()
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// 内边距
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const fixHeight = 0
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rect.width += paddingX * 2
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rect.height += paddingY * 2
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rect.height += paddingY * 2 + fixHeight + headerHeight + footerHeight
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draw.translate(paddingX, paddingY)
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// 将svg设置为实际内容的宽高
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svg.size(rect.width, rect.height)
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@@ -466,7 +479,21 @@ class MindMap {
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this.watermark.isInExport = false
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}
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// 添加必要的样式
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clone.add(SVG(`<style>${cssContent}</style>`))
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;[cssContent, ...cssTextList].forEach(s => {
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clone.add(SVG(`<style>${s}</style>`))
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})
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// 附加内容
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if (header && headerHeight > 0) {
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clone.findOne('.smm-container').translate(0, headerHeight)
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header.width(rect.width)
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header.y(paddingY)
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clone.add(header, 0)
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}
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if (footer && footerHeight > 0) {
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footer.width(rect.width)
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footer.y(rect.height - paddingY - footerHeight)
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clone.add(footer)
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}
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// 修正defs里定义的元素的id,因为clone时defs里的元素的id会继续递增,导致和内容中引用的id对不上
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const defs = svg.find('defs')
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const defs2 = clone.find('defs')
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@@ -294,8 +294,8 @@ export const defaultOpt = {
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beforeShortcutRun: null,
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// 彩虹线条配置,需要先注册RainbowLines插件
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rainbowLinesConfig: {
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open: false,// 是否开启彩虹线条
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colorsList: []// 自定义彩虹线条的颜色列表,如果不设置,会使用默认颜色列表
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open: false, // 是否开启彩虹线条
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colorsList: [] // 自定义彩虹线条的颜色列表,如果不设置,会使用默认颜色列表
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/*
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[
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'rgb(255, 213, 73)',
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@@ -307,5 +307,16 @@ export const defaultOpt = {
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'rgb(152, 132, 234)'
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]
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*/
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}
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},
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// 导出png、svg、pdf时在头部和尾部添加自定义内容
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// 可传递一个函数,这个函数需要返回如下数据:
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/*
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{
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el,// 要追加的自定义DOM节点,样式可内联
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cssText,// 可选,如果样式不想内联,可以传递该值,一个css字符串
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height: 50// 返回的DOM节点的高度,必须传递
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}
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*/
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addContentToHeader: null,
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addContentToFooter: null
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}
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@@ -48,11 +48,13 @@ class Export {
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// 获取svg数据
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async getSvgData() {
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let { exportPaddingX, exportPaddingY, errorHandler, resetCss } =
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let { exportPaddingX, exportPaddingY, errorHandler, resetCss, addContentToHeader, addContentToFooter } =
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this.mindMap.opt
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let { svg, svgHTML } = this.mindMap.getSvgData({
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paddingX: exportPaddingX,
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paddingY: exportPaddingY
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paddingY: exportPaddingY,
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addContentToHeader,
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addContentToFooter
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})
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// svg的image标签,把图片的url转换成data:url类型,否则导出会丢失图片
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const task1 = this.createTransformImgTaskList(
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@@ -4,6 +4,7 @@ import {
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selfCloseTagList
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} from '../constants/constant'
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import MersenneTwister from './mersenneTwister'
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import { ForeignObject } from '@svgdotjs/svg.js'
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// 深度优先遍历树
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export const walk = (
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@@ -1315,3 +1316,46 @@ export const getRectRelativePosition = (rect1, rect2) => {
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return 'overlap'
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}
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}
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// 处理获取svg内容时添加额外内容
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export const handleGetSvgDataExtraContent = ({
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addContentToHeader,
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addContentToFooter
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}) => {
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// 追加内容
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const cssTextList = []
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let header = null
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let headerHeight = 0
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let footer = null
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let footerHeight = 0
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const handle = (fn, callback) => {
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if (typeof fn === 'function') {
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const { el, cssText, height } = fn()
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if (el instanceof HTMLElement) {
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el.setAttribute('xmlns', 'http://www.w3.org/1999/xhtml')
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const foreignObject = new ForeignObject()
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foreignObject.height(height)
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foreignObject.add(el)
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callback(foreignObject, height)
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}
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if (cssText) {
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cssTextList.push(cssText)
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}
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}
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}
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handle(addContentToHeader, (foreignObject, height) => {
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header = foreignObject
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headerHeight = height
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})
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handle(addContentToFooter, (foreignObject, height) => {
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footer = foreignObject
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footerHeight = height
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})
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return {
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cssTextList,
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header,
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headerHeight,
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footer,
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footerHeight
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}
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}
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