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Commit e390e4a6 authored by fisherdaddy's avatar fisherdaddy
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feature: 新增Latex转图片工具

parent 0444fc8a
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package.json
View file @ e390e4a6
......@@ -10,8 +10,10 @@
"dependencies": {
"@react-oauth/google": "^0.12.1",
"antd": "^5.21.6",
"dompurify": "^3.1.7",
"html2canvas": "^1.4.1",
"i18next": "^23.16.5",
"katex": "^0.16.11",
"marked": "^15.0.0",
"marked-react": "^2.0.0",
"react": "^18.2.0",
......
src/App.jsx
View file @ e390e4a6
......@@ -12,7 +12,7 @@ const Blog = lazy(() => import('./pages/Blog'));
const AIProduct = lazy(() => import('./pages/AIProduct'));
const JsonFormatter = lazy(() => import('./components/JsonFormatter'));
const TextToImage = lazy(() => import('./components/TextToImage'));
const MarkdownToImage = lazy(() => import('./components/MarkdownToImage'));
const UrlEnDecode = lazy(() => import('./components/UrlEnDecode'));
const About = lazy(() => import('./pages/About'));
const OpenAITimeline = lazy(() => import('./components/OpenAITimeline'));
......@@ -20,6 +20,7 @@ const PricingCharts = lazy(() => import('./components/PricingCharts'));
const HandwriteGen = lazy(() => import('./components/HandwriteGen'));
const ImageBase64Converter = lazy(() => import('./components/ImageBase64Converter'));
const QuoteCard = lazy(() => import('./components/QuoteCard'));
const LatexToImage = lazy(() => import('./components/LatexToImage'));
function App() {
return (
......@@ -38,7 +39,7 @@ function App() {
<Route path="/ai-products" element={<AIProduct />} />
<Route path="/blog" element={<Blog />} />
<Route path="/text2image" element={<TextToImage />} />
<Route path="/markdown-to-image" element={<MarkdownToImage />} />
<Route path="/json-formatter" element={<JsonFormatter />} />
<Route path="/url-encode-and-decode" element={<UrlEnDecode />} />
<Route path="/openai-timeline" element={<OpenAITimeline />} />
......@@ -46,6 +47,7 @@ function App() {
<Route path="/handwriting" element={<HandwriteGen />} />
<Route path="/image-base64" element={<ImageBase64Converter />} />
<Route path="/quote-card" element={<QuoteCard />} />
<Route path="/latex-to-image" element={<LatexToImage />} />
<Route path="*" element={<NotFound />} />
</Routes>
......
src/components/LatexToImage.jsx 0 → 100644
View file @ e390e4a6
import React, { useState, useMemo } from 'react';
import styled from 'styled-components';
import katex from 'katex';
import 'katex/dist/katex.min.css';
import DOMPurify from 'dompurify';
import SEO from './SEO';
import { useTranslation } from '../js/i18n';
import html2canvas from 'html2canvas';
// 容器样式
const Container = styled.div`
min-height: 100vh;
background: linear-gradient(135deg, #f5f7ff 0%, #ffffff 100%);
padding: 2rem;
position: relative;
&::before {
content: '';
position: absolute;
top: 0;
left: 0;
right: 0;
bottom: 0;
background:
linear-gradient(90deg, rgba(99, 102, 241, 0.05) 1px, transparent 1px),
linear-gradient(rgba(99, 102, 241, 0.05) 1px, transparent 1px);
background-size: 20px 20px;
pointer-events: none;
}
`;
const ContentWrapper = styled.div`
display: flex;
gap: 2rem;
max-width: 1400px;
margin: 0 auto;
position: relative;
z-index: 1;
@media (max-width: 768px) {
flex-direction: column;
}
`;
const EditorContainer = styled.div`
flex: 1;
background: rgba(255, 255, 255, 0.8);
backdrop-filter: blur(10px);
border-radius: 16px;
padding: 1.5rem;
box-shadow: 0 8px 32px rgba(99, 102, 241, 0.1);
border: 1px solid rgba(255, 255, 255, 0.2);
`;
const PreviewContainer = styled(EditorContainer)`
overflow: auto;
position: relative;
`;
const Editor = styled.textarea`
width: 100%;
min-height: 400px;
padding: 1rem;
border: none;
background: transparent;
font-family: 'SF Mono', monospace;
font-size: 14px;
line-height: 1.5;
resize: vertical;
color: #1a1a1a;
&:focus {
outline: none;
}
`;
const Preview = styled.div`
font-family: -apple-system, system-ui, sans-serif;
color: #1a1a1a;
line-height: 1.6;
h1, h2, h3, h4, h5, h6 {
margin-top: 1.5em;
margin-bottom: 0.5em;
font-weight: 600;
}
p {
margin: 1em 0;
}
img {
max-width: 100%;
height: auto;
}
table {
border-collapse: collapse;
width: 100%;
margin: 1em 0;
}
th, td {
border: 1px solid rgba(99, 102, 241, 0.2);
padding: 0.5em;
}
.katex {
font-size: 1.1em;
}
`;
const TitleLabel = styled.h2`
font-size: 1.8rem;
margin-bottom: 1.5rem;
background: linear-gradient(135deg, #6366F1 0%, #4F46E5 100%);
-webkit-background-clip: text;
-webkit-text-fill-color: transparent;
font-weight: 700;
letter-spacing: -0.02em;
`;
const DownloadButton = styled.button`
background: linear-gradient(135deg, #6366F1 0%, #4F46E5 100%);
color: white;
padding: 0.5rem 1rem;
border: none;
border-radius: 6px;
cursor: pointer;
font-weight: 600;
transition: opacity 0.2s;
font-size: 0.9rem;
position: absolute;
top: 1.5rem;
right: 1.5rem;
opacity: ${props => props.visible ? 1 : 0};
pointer-events: ${props => props.visible ? 'auto' : 'none'};
&:hover {
opacity: 0.9;
}
`;
function HtmlPreview() {
const [html, setHtml] = useState('');
const { t } = useTranslation();
// 处理 LaTeX 公式
const processLatex = (content) => {
return content.replace(/\$\$([\s\S]*?)\$\$|\\\[([\s\S]*?)\\\]|\\\(([\s\S]*?)\\\)|\$(.*?)\$/g, (match, p1, p2, p3, p4) => {
const formula = p1 || p2 || p3 || p4;
const displayMode = match.startsWith('$$') || match.startsWith('\\[');
try {
return katex.renderToString(formula.trim(), {
displayMode,
throwOnError: false
});
} catch (e) {
console.error('LaTeX解析错误:', e);
return match;
}
});
};
// 使用 useMemo 缓存处理后的 HTML
const renderedContent = useMemo(() => {
if (!html) return '';
try {
// 处理 LaTeX 公式
let processedHtml = processLatex(html);
// 清理 HTML，防止 XSS 攻击
const sanitizedHtml = DOMPurify.sanitize(processedHtml, {
ADD_TAGS: ['math', 'annotation', 'semantics', 'mrow', 'mi', 'mo', 'mn', 'msup', 'mfrac'],
ADD_ATTR: ['display', 'mode', 'class']
});
return sanitizedHtml;
} catch (e) {
console.error('渲染错误:', e);
return `渲染错误: ${e.message}`;
}
}, [html]);
const handleDownload = async () => {
const previewElement = document.querySelector('.preview-content');
if (!previewElement) return;
try {
// 等待图片加载
const waitForImages = () => {
const images = previewElement.getElementsByTagName('img');
const promises = Array.from(images).map(img => {
if (img.complete) return Promise.resolve();
return new Promise((resolve) => {
img.onload = resolve;
img.onerror = resolve;
});
});
return Promise.all(promises);
};
await waitForImages();
// 等待 LaTeX 渲染
await new Promise(resolve => setTimeout(resolve, 500));
// 计算实际内容高度（包括所有子元素）
const computeActualHeight = (element) => {
const style = window.getComputedStyle(element);
const marginTop = parseInt(style.marginTop);
const marginBottom = parseInt(style.marginBottom);
let height = element.offsetHeight + marginTop + marginBottom;
// 获取所有子元素的位置信息
const children = element.children;
if (children.length > 0) {
const lastChild = children[children.length - 1];
const lastChildRect = lastChild.getBoundingClientRect();
const elementRect = element.getBoundingClientRect();
height = Math.max(height, lastChildRect.bottom - elementRect.top + marginBottom + 50);
}
return height;
};
const actualHeight = computeActualHeight(previewElement);
const actualWidth = previewElement.offsetWidth;
const canvas = await html2canvas(previewElement, {
backgroundColor: '#ffffff',
scale: 2,
width: actualWidth,
height: actualHeight,
windowWidth: actualWidth,
windowHeight: actualHeight,
useCORS: true,
logging: false,
onclone: (clonedDoc) => {
const clonedElement = clonedDoc.querySelector('.preview-content');
if (clonedElement) {
// 设置固定尺寸
clonedElement.style.width = `${actualWidth}px`;
clonedElement.style.height = `${actualHeight}px`;
clonedElement.style.position = 'relative';
clonedElement.style.transform = 'none';
clonedElement.style.transformOrigin = '0 0';
// 确保内容不会溢出
clonedElement.style.overflow = 'visible';
clonedElement.style.padding = '20px';
clonedElement.style.boxSizing = 'border-box';
// 强制重新计算布局
clonedElement.style.display = 'block';
}
}
});
const link = document.createElement('a');
link.download = 'latex-preview.png';
link.href = canvas.toDataURL('image/png');
link.click();
} catch (error) {
console.error('导出图片失败:', error);
}
};
return (
<>
<SEO
title={t('tools.latex2image.title')}
description={t('tools.latex2image.description')}
/>
<Container>
<ContentWrapper>
<EditorContainer>
<TitleLabel>{t('tools.latex2image.title')}</TitleLabel>
<Editor
value={html}
onChange={(e) => setHtml(e.target.value)}
placeholder={t('tools.latex2image.placeholder')}
/>
</EditorContainer>
<PreviewContainer>
<TitleLabel>{t('tools.latex2image.preview')}</TitleLabel>
<DownloadButton
onClick={handleDownload}
visible={renderedContent.length > 0}
>
{t('tools.latex2image.download')}
</DownloadButton>
<Preview
className="preview-content"
dangerouslySetInnerHTML={{ __html: renderedContent }}
/>
</PreviewContainer>
</ContentWrapper>
</Container>
</>
);
}
export default HtmlPreview;
src/components/TextToImage.jsx → src/components/MarkdownToImage.jsx
View file @ e390e4a6
......@@ -2,7 +2,7 @@ import React, { useState, useRef } from 'react';
import styled from 'styled-components';
import { marked } from 'marked';
import { useTranslation } from '../js/i18n';
import SEO from '../components/SEO';
import SEO from './SEO';
import Marked from 'marked-react';
// 更新预设模板
......@@ -277,18 +277,18 @@ function TextToImage() {
return (
<>
<SEO
title={t('tools.text2image.title')}
description={t('tools.text2image.description')}
title={t('tools.markdown2image.title')}
description={t('tools.markdown2image.description')}
/>
<Container>
<ContentWrapper>
<InputContainer>
<TitleLabel>{t('tools.text2image.title')}</TitleLabel>
<TitleLabel>{t('tools.markdown2image.title')}</TitleLabel>
{/* 模板选择 */}
<Section>
<Label>{t('tools.text2image.selectTemplate')}</Label>
<Label>{t('tools.markdown2image.selectTemplate')}</Label>
<TemplateGrid>
{templates.map(template => (
<TemplateItem
......@@ -298,7 +298,7 @@ function TextToImage() {
background={template.bgColor}
color={template.textColor}
>
{t(`tools.text2image.templates.${template.name}`)}
{t(`tools.markdown2image.templates.${template.name}`)}
</TemplateItem>
))}
</TemplateGrid>
......@@ -306,16 +306,16 @@ function TextToImage() {
{/* Markdown 编辑器 */}
<Section>
<Label>{t('tools.text2image.inputLabel')}</Label>
<Label>{t('tools.markdown2image.inputLabel')}</Label>
<MarkdownEditor
value={text}
onChange={(e) => setText(e.target.value)}
placeholder={t('tools.text2image.placeholder')}
placeholder={t('tools.markdown2image.placeholder')}
/>
</Section>
<DownloadButton onClick={handleDownload}>
{t('tools.text2image.downloadButton')}
{t('tools.markdown2image.downloadButton')}
</DownloadButton>
</InputContainer>
......@@ -332,7 +332,7 @@ function TextToImage() {
}}
>
<Marked>
{text || t('tools.text2image.previewDefault')}
{text || t('tools.markdown2image.previewDefault')}
</Marked>
</div>
</PreviewContainer>
......
src/locales/en/tools.json
View file @ e390e4a6
{
"text2image": {
"title": "Text to Image Card",
"description": "Convert text to image card",
"markdown2image": {
"title": "Markdown to Image",
"description": "Convert Markdown data into beautiful images",
"selectTemplate": "Select Template",
"inputLabel": "Input Text (Markdown Supported)",
"placeholder": "# Title\n## Subtitle\n- List item\n**Bold** *Italic*",
......@@ -16,6 +16,13 @@
"tech": "Tech"
}
},
"latex2image": {
"title": "Latex to Image",
"description": "Effortlessly convert Latex formulas to images!",
"preview": "Preview",
"placeholder": "Enter your Latex formula here, HTML is supported:\nExample:\n<h1>Title</h1>\n<p>This is an inline formula: $E=mc^2$</p>\n<p>This is a block-level formula: $$\\sum_{i=1}^n i$$</p>",
"download": "Download Preview Image"
},
"quoteCard": {
"title": "Quote Card Generator",
"description": "Convert bilingual quotes to cards",
......
src/locales/ja/tools.json
View file @ e390e4a6
{
"text2image": {
"title": "テキストから画像",
"description": "テキストを画像カードに変換",
"markdown2image": {
"title": "Markdownを画像に変換",
"description": "Markdownデータを美しい画像に変換します",
"inputPlaceholder": "テキストを入力（タイトルを含めることができます、例：# タイトル1）",
"selectTemplate": "テンプレートを選択",
"previewDefault": "# プレビューエリア\nテキストを入力すると、ここにプレビューが表示されます",
......@@ -16,6 +16,13 @@
"tech": "テック"
}
},
"latex2image": {
"title": "Latex画像変換",
"description": "Latexの数式を簡単に画像に変換できます！",
"preview": "プレビュー",
"placeholder": "ここにLatexの数式を入力してください。HTMLも使用可能です：\n例：\n<h1>タイトル</h1>\n<p>これはインライン数式です：$E=mc^2$</p>\n<p>これはブロックレベルの数式です：$$\\sum_{i=1}^n i$$</p>",
"download": "プレビュー画像をダウンロード"
},
"quoteCard": {
"title": "名言カードジェネレーター",
"description": "名言のバイリンガルテキストをカードに変換",
......
src/locales/ko/tools.json
View file @ e390e4a6
{
"text2image": {
"title": "텍스트를 이미지로",
"description": "텍스트를 이미지 카드로 변환",
"markdown2image": {
"title": "Markdown을 이미지로 변환",
"description": "Markdown 데이터를 아름다운 이미지로 변환합니다",
"inputPlaceholder": "텍스트 입력 (제목 포함 가능, 예: # 제목 1)",
"downloadButton": "이미지로 내보내기",
"selectTemplate": "템플릿 선택",
......@@ -17,6 +17,13 @@
"tech": "테크"
}
},
"latex2image": {
"title": "Latex 이미지 변환",
"description": "Latex 수식을 손쉽게 이미지로 변환하세요! ",
"preview": "미리보기",
"placeholder": "여기에 Latex 수식을 입력하세요. HTML도 지원됩니다:\n예시:\n<h1>제목</h1>\n<p>이것은 인라인 수식입니다: $E=mc^2$</p>\n<p>이것은 블록 수식입니다: $$\\sum_{i=1}^n i$$</p>",
"download": "미리보기 이미지 다운로드"
},
"quoteCard": {
"title": "명언 카드 생성기",
"description": "명언 이중 언어 텍스트를 카드로 변환",
......
src/locales/zh/tools.json
View file @ e390e4a6
{
"text2image": {
"title": "文字转图片生成器",
"description": "将文本转换为精美的图片",
"markdown2image": {
"title": "Markdown转图片",
"description": "将Markdown数据转换为精美的图片",
"selectTemplate": "选择模板",
"inputLabel": "输入文本 (支持 Markdown)",
"placeholder": "# 标题\n## 子标题\n- 列表项\n**粗体** *斜体*",
......@@ -16,6 +16,13 @@
"tech": "科技"
}
},
"latex2image": {
"title": "Latex转图片",
"description": "轻松将Latex公式转换为图片！",
"preview": "预览",
"placeholder": "在此输入Latex公式，支持HTML：\n例如：\n<h1>标题</h1>\n<p>这是一个行内公式：$E=mc^2$</p>\n<p>这是一个块级公式：$$\\sum_{i=1}^n i$$</p>",
"download": "下载预览图片"
},
"quoteCard": {
"title": "名言卡片生成器",
"description": "名言双语文本转为卡片",
......
src/pages/Home.jsx
View file @ e390e4a6
......@@ -6,7 +6,8 @@ import SEO from '../components/SEO';
const tools = [
{ id: 'handwrite', icon: '/assets/icon/handwrite.png', path: '/handwriting' },
{ id: 'quoteCard', icon: '/assets/icon/quotecard.png', path: '/quote-card' },
{ id: 'text2image', icon: '/assets/icon/text2image.png', path: '/text2image' },
{ id: 'markdown2image', icon: '/assets/icon/markdown2image.png', path: '/markdown-to-image' },
{ id: 'latex2image', icon: '/assets/icon/latex2image.png', path: '/latex-to-image' },
{ id: 'jsonFormatter', icon: '/assets/icon/json-format.png', path: '/json-formatter' },
{ id: 'urlEncodeDecode', icon: '/assets/icon/url-endecode.png', path: '/url-encode-and-decode' },
{ id: 'imageBase64Converter', icon: '/assets/icon/image-base64.png', path: '/image-base64' },
......
src/pages/ImageTools.jsx
View file @ e390e4a6
......@@ -6,7 +6,8 @@ import SEO from '../components/SEO';
const tools = [
{ id: 'handwrite', icon: '/assets/icon/handwrite.png', path: '/handwriting' },
{ id: 'quoteCard', icon: '/assets/icon/quotecard.png', path: '/quote-card' },
{ id: 'text2image', icon: '/assets/icon/text2image.png', path: '/text2image' },
{ id: 'markdown2image', icon: '/assets/icon/markdown2image.png', path: '/markdown-to-image' },
{ id: 'latex2image', icon: '/assets/icon/latex2image.png', path: '/latex-to-image' },
];
const ImageTools = () => {
......
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