WebGraphics/index.html at main · Eeman1113/WebGraphics · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Image-to-Text Converter</title>
    <style>
        :root {
            --primary-color: #222;
            --secondary-color: #f5f5f5;
            --accent-color: #ff6b6b;
            --border-color: #444;
            --bg-color: white;
            --text-color: #222;
            --drop-hover-color: rgba(0,0,0,0.03);
            --info-border-color: #eee;
            --loading-bg: rgba(255,255,255,0.8);
            --button-text: white;
        }

        body.dark-mode {
            --primary-color: #f5f5f5;
            --secondary-color: #222;
            --accent-color: #ff6b6b;
            --border-color: #666;
            --bg-color: #333;
            --text-color: #f5f5f5;
            --drop-hover-color: rgba(255,255,255,0.05);
            --info-border-color: #555;
            --loading-bg: rgba(0,0,0,0.7);
            --button-text: #222;
        }

        body {
            font-family: 'Courier New', monospace;
            background-color: var(--secondary-color);
            color: var(--text-color);
            margin: 0;
            padding: 20px;
            display: flex;
            justify-content: center;
            align-items: center;
            min-height: 100vh;
            transition: background-color 0.3s ease, color 0.3s ease;
        }

        .container {
            max-width: 600px;
            width: 100%;
            background-color: var(--bg-color);
            border: 2px solid var(--border-color);
            box-shadow: 6px 6px 0 var(--border-color);
            padding: 30px;
            position: relative;
            transition: background-color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
        }

        h1 {
            text-align: center;
            margin-top: 0;
            margin-bottom: 30px;
            letter-spacing: 1px;
            text-transform: uppercase;
        }

        .drop-area {
            border: 2px dashed var(--border-color);
            border-radius: 4px;
            padding: 40px 20px;
            text-align: center;
            margin-bottom: 20px;
            transition: all 0.2s ease;
            cursor: pointer;
        }

        .drop-area:hover, .drop-area.active {
            background-color: var(--drop-hover-color);
            border-color: var(--accent-color);
        }

        .drop-area p {
            margin: 8px 0;
        }

        button {
            background-color: var(--primary-color);
            color: var(--button-text);
            border: none;
            padding: 10px 15px;
            margin: 10px 0;
            cursor: pointer;
            font-family: 'Courier New', monospace;
            transition: all 0.2s ease;
        }

        button:hover {
            background-color: var(--accent-color);
        }

        button:disabled {
            background-color: #ccc;
            cursor: not-allowed;
        }

        .info {
            margin-top: 30px;
            padding-top: 20px;
            border-top: 1px solid var(--info-border-color);
            font-size: 0.9rem;
        }

        .loading {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: var(--loading-bg);
            display: flex;
            justify-content: center;
            align-items: center;
            z-index: 999;
        }

        .status {
            margin-top: 15px;
            text-align: center;
            font-size: 0.9rem;
        }

        .mode-toggle {
            position: fixed;
            top: 20px;
            right: 20px;
            font-size: 0.7rem;
            font-weight: bold;
            cursor: pointer;
            background-color: var(--bg-color);
            color: var(--text-color);
            border: 2px solid var(--border-color);
            box-shadow: 3px 3px 0 var(--border-color);
            padding: 5px 8px;
            text-transform: uppercase;
            letter-spacing: 1px;
            transition: all 0.2s ease;
            font-family: 'Courier New', monospace;
            z-index: 100;
        }

        .mode-toggle:hover {
            background-color: var(--accent-color);
            color: white;
        }
    </style>
</head>
<body>
    <button id="modeToggle" class="mode-toggle" aria-label="Toggle dark mode">DARK</button>

    <div class="container">
        <h1>Image ↔ Text Converter</h1>

        <div id="dropArea" class="drop-area">
            <p>Drag & drop files here</p>
            <p>or</p>
            <button id="browseBtn">Browse Files</button>
            <input type="file" id="fileInput" multiple style="display: none;">
        </div>

        <div style="text-align: center;">
            <button id="convertBtn" disabled>Convert & Download</button>
        </div>

        <div id="status" class="status"></div>

        <div class="info">
            <h3>How it works</h3>
            <p>• Drop image files to convert them to text matrices</p>
            <p>• Drop text files to convert them back to images</p>
            <p>• Multiple files will be packaged in a zip file</p>
            <p>• No quality loss during conversion</p>
        </div>
    </div>

    <script>
        // Add JSZip library
        document.write('<script src="https://cdnjs.cloudflare.com/ajax/libs/jszip/3.10.1/jszip.min.js"><\/script>');

        let files = [];
        let jsZipLoaded = false;

        // Check when JSZip is loaded
        window.addEventListener('load', function() {
            if (typeof JSZip !== 'undefined') {
                jsZipLoaded = true;
            }
        });

        // DOM elements
        const dropArea = document.getElementById('dropArea');
        const fileInput = document.getElementById('fileInput');
        const browseBtn = document.getElementById('browseBtn');
        const convertBtn = document.getElementById('convertBtn');
        const statusEl = document.getElementById('status');
        const modeToggle = document.getElementById('modeToggle');

        // Dark mode functionality
        // Check for saved user preference
        if (localStorage.getItem('darkMode') === 'true') {
            document.body.classList.add('dark-mode');
            modeToggle.textContent = 'LIGHT';
        }

        // Toggle dark mode
        modeToggle.addEventListener('click', () => {
            document.body.classList.toggle('dark-mode');

            if (document.body.classList.contains('dark-mode')) {
                modeToggle.textContent = 'LIGHT';
                localStorage.setItem('darkMode', 'true');
            } else {
                modeToggle.textContent = 'DARK';
                localStorage.setItem('darkMode', 'false');
            }
        });

        // File handling event listeners
        dropArea.addEventListener('dragover', (e) => {
            e.preventDefault();
            dropArea.classList.add('active');
        });

        dropArea.addEventListener('dragleave', () => {
            dropArea.classList.remove('active');
        });

        dropArea.addEventListener('drop', (e) => {
            e.preventDefault();
            dropArea.classList.remove('active');
            handleFiles(e.dataTransfer.files);
        });

        browseBtn.addEventListener('click', () => {
            fileInput.click();
        });

        fileInput.addEventListener('change', () => {
            handleFiles(fileInput.files);
        });

        convertBtn.addEventListener('click', async () => {
            await processFiles();
        });

        // Functions
        function handleFiles(fileList) {
            files = Array.from(fileList);

            if (files.length > 0) {
                convertBtn.disabled = false;
                statusEl.textContent = `${files.length} file(s) selected`;
            } else {
                convertBtn.disabled = true;
                statusEl.textContent = '';
            }
        }

        function showLoading() {
            const loader = document.createElement('div');
            loader.className = 'loading';
            loader.innerHTML = '<p>Processing...</p>';
            document.body.appendChild(loader);
            return loader;
        }

        async function processFiles() {
            if (files.length === 0) return;

            if (files.length > 1 && !jsZipLoaded) {
                statusEl.textContent = 'Please wait for JSZip to load...';
                setTimeout(processFiles, 1000);
                return;
            }

            const loader = showLoading();

            try {
                if (files.length === 1) {
                    const file = files[0];

                    if (file.type.startsWith('image/')) {
                        // Image to text - keep original name but change extension to .txt
                        const textContent = await imageToText(file);
                        const fileName = file.name.split('.').slice(0, -1).join('.') + '.txt';
                        downloadFile(textContent, fileName, 'text/plain');
                        statusEl.textContent = 'Image converted to text successfully';
                    } else if (file.name.endsWith('.txt')) {
                        // Text to image - keep original name but change extension to .png
                        try {
                            const imageCanvas = await textToImage(file);
                            const dataURL = imageCanvas.toDataURL('image/png');
                            const fileName = file.name.replace('.txt', '.png');
                            downloadDataURL(dataURL, fileName);
                            statusEl.textContent = 'Text converted to image successfully';
                        } catch (e) {
                            statusEl.textContent = 'Error: Invalid text file format';
                        }
                    } else {
                        statusEl.textContent = 'Error: Unsupported file type';
                    }
                } else {
                    // Multiple files - create zip
                    const zip = new JSZip();

                    for (let i = 0; i < files.length; i++) {
                        const file = files[i];
                        statusEl.textContent = `Processing file ${i+1} of ${files.length}...`;

                        if (file.type.startsWith('image/')) {
                            const textContent = await imageToText(file);
                            // Use the original file name but with .txt extension
                            const fileName = file.name.split('.').slice(0, -1).join('.') + '.txt';
                            zip.file(fileName, textContent);
                        } else if (file.name.endsWith('.txt')) {
                            try {
                                const imageCanvas = await textToImage(file);
                                const blob = await new Promise(resolve => {
                                    imageCanvas.toBlob(resolve, 'image/png');
                                });
                                // Use the original file name but with .png extension
                                const fileName = file.name.replace('.txt', '.png');
                                zip.file(fileName, blob);
                            } catch (e) {
                                console.error(`Error processing ${file.name}: ${e}`);
                            }
                        }
                    }

                    const content = await zip.generateAsync({type: 'blob'});
                    const url = URL.createObjectURL(content);
                    const a = document.createElement('a');
                    a.href = url;
                    a.download = 'converted_files.zip';
                    document.body.appendChild(a);
                    a.click();
                    document.body.removeChild(a);
                    URL.revokeObjectURL(url);

                    statusEl.textContent = 'All files processed and downloaded as zip';
                }
            } catch (error) {
                statusEl.textContent = `Error: ${error.message}`;
            } finally {
                document.body.removeChild(loader);
            }
        }

        async function imageToText(file) {
            return new Promise((resolve, reject) => {
                const reader = new FileReader();
                reader.onload = (e) => {
                    const img = new Image();
                    img.onload = () => {
                        const canvas = document.createElement('canvas');
                        canvas.width = img.width;
                        canvas.height = img.height;

                        const ctx = canvas.getContext('2d');
                        ctx.drawImage(img, 0, 0);

                        const imageData = ctx.getImageData(0, 0, canvas.width, canvas.height);
                        const pixels = imageData.data;

                        // Create JSON object with image data
                        const imageObject = {
                            width: img.width,
                            height: img.height,
                            pixels: Array.from(pixels)
                        };

                        resolve(JSON.stringify(imageObject));
                    };
                    img.onerror = () => reject(new Error('Failed to load image'));
                    img.src = e.target.result;
                };
                reader.onerror = () => reject(new Error('Failed to read file'));
                reader.readAsDataURL(file);
            });
        }

        async function textToImage(file) {
            return new Promise((resolve, reject) => {
                const reader = new FileReader();
                reader.onload = (e) => {
                    try {
                        const imageObject = JSON.parse(e.target.result);

                        if (!imageObject.width || !imageObject.height || !imageObject.pixels) {
                            throw new Error('Invalid image data format');
                        }

                        const canvas = document.createElement('canvas');
                        canvas.width = imageObject.width;
                        canvas.height = imageObject.height;

                        const ctx = canvas.getContext('2d');
                        const imageData = ctx.createImageData(canvas.width, canvas.height);

                        for (let i = 0; i < imageObject.pixels.length; i++) {
                            imageData.data[i] = imageObject.pixels[i];
                        }

                        ctx.putImageData(imageData, 0, 0);
                        resolve(canvas);
                    } catch (error) {
                        reject(error);
                    }
                };
                reader.onerror = () => reject(new Error('Failed to read file'));
                reader.readAsText(file);
            });
        }

        function downloadFile(content, filename, type) {
            const blob = new Blob([content], {type: type});
            const url = URL.createObjectURL(blob);
            const a = document.createElement('a');
            a.href = url;
            a.download = filename;
            document.body.appendChild(a);
            a.click();
            document.body.removeChild(a);
            URL.revokeObjectURL(url);
        }

        function downloadDataURL(dataURL, filename) {
            const a = document.createElement('a');
            a.href = dataURL;
            a.download = filename;
            document.body.appendChild(a);
            a.click();
            document.body.removeChild(a);
        }
    </script>
</body>
</html>