OpenFlexureViewer/indextiff.html at main · dgrosen/OpenFlexureViewer · 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 Viewer with Zoom & Tiling</title>
    <script src="https://openseadragon.github.io/openseadragon/openseadragon.min.js"></script>
    <style>
        body {
            margin: 0;
            font-family: Arial, sans-serif;
            background-color: #f0f0f0;
            color: #fff;
        }

        #viewer {
            width: 100vw;
            height: 90vh;
            background-color: #fff;
        }

        #header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            background-color: #c71585; /* Magenta */
            padding: 10px;
        }

        #header .left-section {
            display: flex;
            align-items: center;
        }

        #header .logo {
            width: 40px;
            height: 40px;
            margin-right: 10px;
        }

        #header .info {
            font-size: 14px;
        }

        #header .right-section {
            position: relative;
            font-size: 14px;
        }

        #uploadArea {
            border: 2px dashed #fff;
            padding: 10px;
            cursor: pointer;
        }

        #controls {
            position: absolute;
            bottom: 20px;
            left: 50%;
            transform: translateX(-50%);
            display: flex;
            gap: 10px;
        }

        .control-button {
            background-color: #c71585;
            border: none;
            color: white;
            padding: 10px 15px;
            font-size: 16px;
            cursor: pointer;
        }

        .control-button:hover {
            background-color: #9c1063;
        }
    </style>
</head>
<body>

    <!-- Header -->
    <div id="header">
        <div class="left-section">
            <img src="/Users/Danny/OFM viewer/OFM logo.jpeg" alt="Logo" class="logo" id="logo">
            <div class="info">
                <div id="filename">No file loaded</div>
                <div id="zoom-level">Zoom: 100%</div>
                 <!--<div id="position">Position: (0, 0)</div>-->
            </div>
        </div>
        <div class="right-section">
            <div id="uploadArea">Drag & Drop Image Here or Click to Upload</div>
            <input type="file" id="fileInput" style="display:none;">
        </div>
    </div>

    <!-- Viewer -->
    <div id="viewer"></div>

    <!-- Controls -->
    <div id="controls">
        <button class="control-button" id="zoom-in">Zoom In</button>
        <button class="control-button" id="zoom-out">Zoom Out</button>
        <button class="control-button" id="reset-view">Full View</button>
    </div>

    <script>
        let viewer = OpenSeadragon({
            id: "viewer",
            prefixUrl: "https://openseadragon.github.io/openseadragon/images/",
            tileSources: [],
            showNavigator: true
        });

        const fileInput = document.getElementById("fileInput");
        const uploadArea = document.getElementById("uploadArea");
        const filenameDiv = document.getElementById("filename");
        const zoomLevelDiv = document.getElementById("zoom-level");
        const positionDiv = document.getElementById("position");

        // Handle drag and drop
        uploadArea.addEventListener("click", () => fileInput.click());
        uploadArea.addEventListener("dragover", (event) => event.preventDefault());
        uploadArea.addEventListener("drop", handleFileUpload);
        fileInput.addEventListener("change", (event) => handleFileUpload(event));

        function handleFileUpload(event) {
            event.preventDefault();
            let file = event.type === 'drop' ? event.dataTransfer.files[0] : event.target.files[0];
            if (file && file.type.match("image.*")) {
                let objectURL = URL.createObjectURL(file);
                loadTileSource(objectURL, file.name);
            }
        }

        function loadTileSource(url, name) {
            viewer.open({ type: 'image', url: url });
            filenameDiv.textContent = `File: ${name}`;
        }

        // Update zoom and position
        viewer.addHandler('zoom', () => {
            let zoom = Math.round(viewer.viewport.getZoom() * 100);
            zoomLevelDiv.textContent = `Zoom: ${zoom}%`;
        });

        viewer.addHandler('pan', () => {
            let center = viewer.viewport.getCenter();
            let x = Math.round(center.x * 100) / 100;
            let y = Math.round(center.y * 100) / 100;
            positionDiv.textContent = `Position: (${x}, ${y})`;
        });

        // Control buttons
        document.getElementById("zoom-in").addEventListener("click", () => {
            viewer.viewport.zoomBy(1.2);
            viewer.viewport.applyConstraints();
        });

        document.getElementById("zoom-out").addEventListener("click", () => {
            viewer.viewport.zoomBy(0.8);
            viewer.viewport.applyConstraints();
        });

        document.getElementById("reset-view").addEventListener("click", () => {
            viewer.viewport.goHome();
        });
    </script>

</body>
</html>