zoie
/
PdfProcessing


			
				
					
						
						
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							<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>字体预览工具</title>
    <style>
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            min-height: 100vh;
            padding: 20px;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            background: white;
            border-radius: 12px;
            box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
            padding: 30px;
        }

        h1 {
            color: #333;
            margin-bottom: 30px;
            text-align: center;
            font-size: 28px;
            font-weight: 600;
        }

        .form-section {
            margin-bottom: 25px;
        }

        label {
            display: block;
            margin-bottom: 8px;
            color: #555;
            font-weight: 500;
            font-size: 14px;
        }

        input[type="text"],
        select {
            width: 100%;
            padding: 12px;
            border: 2px solid #e0e0e0;
            border-radius: 6px;
            font-size: 14px;
            transition: border-color 0.3s;
        }

        input[type="text"]:focus,
        select:focus {
            outline: none;
            border-color: #667eea;
        }

        input[type="number"],
        input[type="color"] {
            padding: 8px;
            border: 2px solid #e0e0e0;
            border-radius: 6px;
            font-size: 14px;
            transition: border-color 0.3s;
        }

        input[type="number"]:focus {
            outline: none;
            border-color: #667eea;
        }

        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 15px;
            margin-bottom: 15px;
        }

        .form-row.full-width {
            grid-template-columns: 1fr;
        }

        .form-group {
            display: flex;
            flex-direction: column;
        }

        .form-group label {
            margin-bottom: 5px;
        }

        button {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            border: none;
            padding: 12px 30px;
            border-radius: 6px;
            font-size: 16px;
            font-weight: 500;
            cursor: pointer;
            transition: transform 0.2s, box-shadow 0.2s;
            width: 100%;
        }

        button:hover {
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
        }

        button:active {
            transform: translateY(0);
        }

        button:disabled {
            background: #ccc;
            cursor: not-allowed;
            transform: none;
        }

        .preview-section {
            margin-top: 30px;
            padding: 25px;
            background: #f8f9fa;
            border-radius: 8px;
            min-height: 200px;
        }

        .preview-title {
            font-size: 16px;
            font-weight: 600;
            color: #333;
            margin-bottom: 15px;
        }

        .preview-image {
            max-width: 100%;
            height: auto;
            border-radius: 6px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            background: 
                repeating-linear-gradient(45deg, #f0f0f0, #f0f0f0 10px, #ffffff 10px, #ffffff 20px);
            padding: 20px;
            display: block;
            margin: 0 auto;
        }

        .loading {
            text-align: center;
            padding: 40px;
            color: #667eea;
            font-size: 16px;
        }

        .error {
            background: #fee;
            color: #c33;
            padding: 15px;
            border-radius: 6px;
            margin-top: 15px;
            border-left: 4px solid #c33;
        }

        .success {
            background: #efe;
            color: #3c3;
            padding: 15px;
            border-radius: 6px;
            margin-top: 15px;
            border-left: 4px solid #3c3;
        }

        .checkbox-group {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .checkbox-group input[type="checkbox"] {
            width: 18px;
            height: 18px;
            cursor: pointer;
        }

        .color-input-group {
            display: flex;
            gap: 10px;
            align-items: center;
        }

        .color-input-group input[type="color"] {
            width: 50px;
            height: 40px;
            cursor: pointer;
        }

        .color-input-group input[type="text"] {
            flex: 1;
        }

        select {
            cursor: pointer;
        }

        @media (max-width: 768px) {
            .form-row {
                grid-template-columns: 1fr;
            }
            
            .container {
                padding: 20px;
            }
        }
    </style>
</head>
<body>
    <div class="container">
        <h1>🎨 字体预览工具</h1>
        
        <div class="form-section">
            <label for="fontSelect">选择字体</label>
            <select id="fontSelect">
                <option value="">加载中...</option>
            </select>
        </div>

        <div class="form-section">
            <label for="textInput">输入文字</label>
            <input type="text" id="textInput" placeholder="请输入要预览的文字" value="字体预览">
        </div>

        <div class="form-row">
            <div class="form-group">
                <label for="fontSize">字体大小</label>
                <input type="number" id="fontSize" value="60" min="10" max="200">
            </div>
            <div class="form-group">
                <label for="padding">内边距</label>
                <input type="number" id="padding" value="20" min="0" max="100">
            </div>
        </div>

        <div class="form-row">
            <div class="form-group">
                <label for="textColor">文字颜色</label>
                <div class="color-input-group">
                    <input type="color" id="textColor" value="#000000">
                    <input type="text" id="textColorInput" value="#000000" placeholder="#000000">
                </div>
            </div>
            <div class="form-group">
                <label for="backgroundColor">背景颜色（透明）</label>
                <div class="color-input-group">
                    <input type="color" id="backgroundColor" value="#ffffff" disabled>
                    <input type="text" id="backgroundColorInput" value="透明" placeholder="透明背景" disabled>
                </div>
            </div>
        </div>

        <div class="form-section">
            <div class="checkbox-group">
                <input type="checkbox" id="handwritingEffect" checked>
                <label for="handwritingEffect" style="margin: 0;">启用手写效果（轻微位置扰动）</label>
            </div>
        </div>

        <button id="generateBtn" onclick="generatePreview()">生成预览</button>

        <div class="preview-section">
            <div class="preview-title">预览效果</div>
            <div id="previewContainer">
                <div class="loading">请选择字体并输入文字，然后点击"生成预览"</div>
            </div>
        </div>
    </div>

    <script>
        // 自动检测环境，本地开发时不添加前缀，生产环境添加 /PdfProcessing 前缀
        const isLocal = window.location.hostname === 'localhost' || 
                       window.location.hostname === '127.0.0.1' ||
                       window.location.hostname === '';
        const API_BASE = window.location.origin + (isLocal ? '' : '/PdfProcessing');
        let fonts = [];

        // 加载字体列表
        async function loadFonts() {
            try {
                const response = await fetch(`${API_BASE}/get_font_list`);
                const data = await response.json();
                
                if (data.success && data.fonts) {
                    fonts = data.fonts;
                    const fontSelect = document.getElementById('fontSelect');
                    fontSelect.innerHTML = '<option value="">请选择字体</option>';
                    
                    fonts.forEach(font => {
                        const option = document.createElement('option');
                        option.value = font.path;
                        option.textContent = font.name;
                        fontSelect.appendChild(option);
                    });
                } else {
                    throw new Error(data.error || '加载字体列表失败');
                }
            } catch (error) {
                console.error('加载字体列表失败:', error);
                document.getElementById('fontSelect').innerHTML = 
                    '<option value="">加载失败，请刷新页面重试</option>';
            }
        }

        // 颜色输入同步
        document.getElementById('textColor').addEventListener('input', function(e) {
            document.getElementById('textColorInput').value = e.target.value;
        });

        document.getElementById('textColorInput').addEventListener('input', function(e) {
            const color = e.target.value;
            if (/^#[0-9A-F]{6}$/i.test(color)) {
                document.getElementById('textColor').value = color;
            }
        });

        // 将十六进制颜色转换为RGB数组
        function hexToRgb(hex) {
            const result = /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i.exec(hex);
            return result ? [
                parseInt(result[1], 16),
                parseInt(result[2], 16),
                parseInt(result[3], 16)
            ] : [0, 0, 0];
        }

        // 生成预览
        async function generatePreview() {
            const fontSelect = document.getElementById('fontSelect');
            const textInput = document.getElementById('textInput');
            const fontSize = parseInt(document.getElementById('fontSize').value);
            const padding = parseInt(document.getElementById('padding').value);
            const textColor = hexToRgb(document.getElementById('textColor').value);
            const handwritingEffect = document.getElementById('handwritingEffect').checked;
            
            if (!fontSelect.value) {
                alert('请先选择字体');
                return;
            }
            
            if (!textInput.value.trim()) {
                alert('请输入要预览的文字');
                return;
            }

            const generateBtn = document.getElementById('generateBtn');
            const previewContainer = document.getElementById('previewContainer');
            
            generateBtn.disabled = true;
            generateBtn.textContent = '生成中...';
            previewContainer.innerHTML = '<div class="loading">正在生成预览...</div>';

            try {
                const response = await fetch(`${API_BASE}/generate_handwriting`, {
                    method: 'POST',
                    headers: {
                        'Content-Type': 'application/json',
                    },
                    body: JSON.stringify({
                        text: textInput.value,
                        font_size: fontSize,
                        padding: padding,
                        background_color: [255, 255, 255, 0], // 透明背景
                        text_color: textColor,
                        font_path: fontSelect.value,
                        use_handwriting_effect: handwritingEffect
                    })
                });

                if (!response.ok) {
                    // 如果响应不是图片，尝试解析为JSON错误信息
                    const errorData = await response.json().catch(() => null);
                    throw new Error(errorData?.error || `HTTP错误: ${response.status}`);
                }

                // 检查响应类型是否为图片
                const contentType = response.headers.get('content-type');
                if (contentType && contentType.startsWith('image/')) {
                    // 创建图片URL（使用Blob）
                    const blob = await response.blob();
                    const imageUrl = URL.createObjectURL(blob);
                    
                    previewContainer.innerHTML = `
                        <img src="${imageUrl}" alt="字体预览" class="preview-image">
                        <div class="success" style="margin-top: 15px;">
                            生成成功！点击图片可以右键保存。
                        </div>
                    `;
                } else {
                    // 如果不是图片，尝试解析为JSON
                    const data = await response.json();
                    throw new Error(data.error || '生成失败');
                }
            } catch (error) {
                console.error('生成预览失败:', error);
                previewContainer.innerHTML = `
                    <div class="error">
                        生成失败: ${error.message}
                    </div>
                `;
            } finally {
                generateBtn.disabled = false;
                generateBtn.textContent = '生成预览';
            }
        }

        // 页面加载时获取字体列表
        window.addEventListener('DOMContentLoaded', loadFonts);

        // 支持回车键生成
        document.getElementById('textInput').addEventListener('keypress', function(e) {
            if (e.key === 'Enter') {
                generatePreview();
            }
        });
    </script>
</body>
</html>