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>字体对比预览</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: 1400px;
            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;
        }

        .input-section {
            background: #f8f9fa;
            padding: 20px;
            border-radius: 8px;
            margin-bottom: 30px;
        }

        .form-row {
            display: grid;
            grid-template-columns: 1fr auto;
            gap: 15px;
            align-items: end;
        }

        .form-group {
            flex: 1;
        }

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

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

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

        .form-controls {
            display: grid;
            grid-template-columns: auto auto auto;
            gap: 10px;
            align-items: end;
        }

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

        .color-input-group input[type="color"] {
            width: 50px;
            height: 46px;
            cursor: pointer;
            padding: 2px;
        }

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

        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;
            white-space: nowrap;
        }

        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;
        }

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

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

        .preview-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 20px;
            margin-top: 20px;
        }

        .font-preview-card {
            background: white;
            border: 2px solid #e0e0e0;
            border-radius: 8px;
            padding: 15px;
            transition: all 0.3s;
        }

        .font-preview-card:hover {
            border-color: #667eea;
            box-shadow: 0 4px 12px rgba(102, 126, 234, 0.2);
        }

        .font-name {
            font-size: 14px;
            font-weight: 600;
            color: #333;
            margin-bottom: 10px;
            padding-bottom: 8px;
            border-bottom: 1px solid #e0e0e0;
        }

        .font-preview-image {
            width: 100%;
            height: auto;
            border-radius: 4px;
            background: 
                repeating-linear-gradient(45deg, #f0f0f0, #f0f0f0 10px, #ffffff 10px, #ffffff 20px);
            padding: 10px;
        }

        .loading {
            text-align: center;
            padding: 60px 20px;
            color: #667eea;
            font-size: 16px;
        }

        .loading-spinner {
            border: 4px solid #f3f3f3;
            border-top: 4px solid #667eea;
            border-radius: 50%;
            width: 40px;
            height: 40px;
            animation: spin 1s linear infinite;
            margin: 0 auto 20px;
        }

        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }

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

        .stats {
            text-align: center;
            color: #666;
            margin-bottom: 20px;
            font-size: 14px;
        }

        .empty-state {
            text-align: center;
            padding: 60px 20px;
            color: #999;
        }

        .empty-state-icon {
            font-size: 64px;
            margin-bottom: 20px;
        }

        @media (max-width: 768px) {
            .form-row {
                grid-template-columns: 1fr;
            }
            
            .form-controls {
                grid-template-columns: 1fr;
            }

            .preview-grid {
                grid-template-columns: 1fr;
            }

            .container {
                padding: 20px;
            }
        }
    </style>
</head>
<body>
    <div class="container">
        <h1>🎨 字体对比预览</h1>
        
        <div class="input-section">
            <div class="form-row">
                <div class="form-group">
                    <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-controls">
                    <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="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>
                    <button id="generateBtn" onclick="generateAllPreviews()">生成所有预览</button>
                </div>
            </div>
            <div style="margin-top: 15px;">
                <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>
        </div>

        <div id="stats" class="stats" style="display: none;"></div>

        <div id="previewContainer">
            <div class="empty-state">
                <div class="empty-state-icon">📝</div>
                <div>请输入文字并点击"生成所有预览"查看所有字体效果</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');

        // 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];
        }

        // 生成所有字体预览
        async function generateAllPreviews() {
            const textInput = document.getElementById('textInput');
            const fontSize = parseInt(document.getElementById('fontSize').value);
            const textColor = hexToRgb(document.getElementById('textColor').value);
            const handwritingEffect = document.getElementById('handwritingEffect').checked;
            
            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');
            const statsDiv = document.getElementById('stats');
            
            generateBtn.disabled = true;
            generateBtn.textContent = '生成中...';
            previewContainer.innerHTML = `
                <div class="loading">
                    <div class="loading-spinner"></div>
                    正在生成所有字体预览，请稍候...
                </div>
            `;
            statsDiv.style.display = 'none';

            try {
                const response = await fetch(`${API_BASE}/batch_generate_preview`, {
                    method: 'POST',
                    headers: {
                        'Content-Type': 'application/json',
                    },
                    body: JSON.stringify({
                        text: textInput.value,
                        font_size: fontSize,
                        padding: 20,
                        background_color: [255, 255, 255, 0], // 透明背景
                        text_color: textColor,
                        use_handwriting_effect: handwritingEffect
                    })
                });

                const data = await response.json();

                if (!data.success) {
                    throw new Error(data.error || '生成失败');
                }

                if (!data.previews || data.previews.length === 0) {
                    previewContainer.innerHTML = `
                        <div class="empty-state">
                            <div class="empty-state-icon">😕</div>
                            <div>没有生成任何预览，请检查字体文件是否存在</div>
                        </div>
                    `;
                    return;
                }

                // 显示统计信息
                statsDiv.textContent = `共生成 ${data.total} 个字体预览`;
                statsDiv.style.display = 'block';

                // 生成预览卡片
                const grid = document.createElement('div');
                grid.className = 'preview-grid';

                data.previews.forEach(preview => {
                    const card = document.createElement('div');
                    card.className = 'font-preview-card';
                    
                    const fontName = document.createElement('div');
                    fontName.className = 'font-name';
                    fontName.textContent = preview.font_name;
                    
                    const previewImg = document.createElement('img');
                    previewImg.className = 'font-preview-image';
                    // 确保image_base64格式正确（支持带前缀或不带前缀）
                    let imageSrc = preview.image_base64;
                    if (imageSrc && !imageSrc.startsWith('data:image/') && !imageSrc.startsWith('http')) {
                        // 如果是纯base64字符串，添加前缀
                        imageSrc = 'data:image/png;base64,' + imageSrc;
                    }
                    previewImg.src = imageSrc;
                    previewImg.alt = preview.font_name;
                    previewImg.title = '点击右键保存图片';
                    // 添加错误处理
                    previewImg.onerror = function() {
                        console.error('图片加载失败:', preview.font_name, imageSrc.substring(0, 50) + '...');
                        this.alt = '图片加载失败';
                        this.style.border = '2px solid red';
                    };
                    
                    card.appendChild(fontName);
                    card.appendChild(previewImg);
                    grid.appendChild(card);
                });

                previewContainer.innerHTML = '';
                previewContainer.appendChild(grid);

            } 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 = '生成所有预览';
            }
        }

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