309 lines
7.4 KiB
HTML
309 lines
7.4 KiB
HTML
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<!DOCTYPE html>
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<html>
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<head>
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<meta name="viewport" content="user-scalable=yes, width=device-width, initial-scale=1">
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<meta name="robots" content="noindex">
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<meta charset="UTF-8">
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<style>
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body {
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max-width: 700px;
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margin: auto;
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font-size: 18px;
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font-family: sans-serif;
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padding: 10px;
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}
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p, li {
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line-height: 1.5em;
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}
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ul, ol {
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padding-left: 20px;
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margin-left: 0;
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}
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li {
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margin-left: 0;
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}
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table {
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border-collapse: collapse;
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}
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th, td {
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border: 1px solid black;
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padding: 5px;
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text-align: left;
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}
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canvas {
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max-width: 100%;
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height: auto;
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display: block;
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background: #ccc;
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margin-top: 1rem;
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border-radius: 50%;
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cursor: grab;
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touch-action: none;
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}
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input[type="color"] {
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width: 50px;
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height: 30px;
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padding: 0;
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border: none;
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vertical-align: middle;
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}
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button, #fileButton {
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font-size: 18px;
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padding: 10px 16px;
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border: none;
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background-color: #d3d3d3;
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color: #000;
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border-radius: 6px;
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cursor: pointer;
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display: inline-block;
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user-select: none;
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-webkit-tap-highlight-color: transparent;
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width: auto;
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min-width: 140px;
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text-align: center;
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margin: 0.5rem 0.5rem 0.5rem 0;
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}
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button:active, #fileButton:active {
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background-color: #a9a9a9;
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}
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#fileButton {
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position: relative;
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overflow: hidden;
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}
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#fileButton input[type="file"] {
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position: absolute;
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top: 0; left: 0;
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width: 100%; height: 100%;
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opacity: 0;
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cursor: pointer;
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}
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#ringColorLabel {
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font-size: 18px;
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display: flex;
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align-items: center;
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gap: 10px;
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margin: 1rem 0;
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}
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#ringColor {
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flex-shrink: 0;
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cursor: pointer;
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}
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</style>
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<title>VTT Token Generator</title>
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</head>
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<body>
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<h1>VTT Token Generator</h1>
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<p>Upload an image, use your mouse wheel or pinchies to zoom in and out, and download a PNG token for your VTT.</p>
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<label id="fileButton" role="button" aria-label="Choose File" tabindex="0">
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Choose File
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<input type="file" id="imageInput" accept="image/*" />
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</label>
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<div id="ringColorLabel">
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<input type="color" id="ringColor" value="#333333" />
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<span>Ring Color</span>
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</div>
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<button id="downloadBtn" aria-label="Generate Token" type="button">Generate Token</button>
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<p><canvas id="tokenCanvas" width="512" height="512"></canvas></p>
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<script>
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const imageInput = document.getElementById('imageInput');
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const ringColor = document.getElementById('ringColor');
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const canvas = document.getElementById('tokenCanvas');
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const ctx = canvas.getContext('2d');
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const downloadBtn = document.getElementById('downloadBtn');
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let uploadedImage = null;
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let imgX = 0, imgY = 0;
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let imgScale = 1;
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let isDragging = false;
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let dragStartX = 0, dragStartY = 0;
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let lastDist = null;
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let touchDragging = false;
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let touchStartX = 0, touchStartY = 0;
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let touchImgX = 0, touchImgY = 0;
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function resetView() {
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imgScale = Math.min(canvas.width / uploadedImage.width, canvas.height / uploadedImage.height);
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imgX = (canvas.width - uploadedImage.width * imgScale) / 2;
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imgY = (canvas.height - uploadedImage.height * imgScale) / 2;
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}
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function render() {
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const size = canvas.width;
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ctx.clearRect(0, 0, size, size);
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ctx.save();
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ctx.beginPath();
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ctx.arc(size / 2, size / 2, size / 2 - 10, 0, Math.PI * 2);
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ctx.closePath();
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ctx.clip();
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if (uploadedImage) {
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ctx.drawImage(uploadedImage, imgX, imgY, uploadedImage.width * imgScale, uploadedImage.height * imgScale);
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}
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ctx.restore();
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ctx.beginPath();
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ctx.arc(size / 2, size / 2, size / 2 - 5, 0, Math.PI * 2);
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ctx.strokeStyle = ringColor.value;
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ctx.lineWidth = 10;
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ctx.stroke();
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}
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imageInput.addEventListener('change', (e) => {
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const file = e.target.files[0];
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if (!file) return;
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const reader = new FileReader();
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reader.onload = (event) => {
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const img = new Image();
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img.onload = () => {
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uploadedImage = img;
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resetView();
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render();
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};
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img.src = event.target.result;
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};
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reader.readAsDataURL(file);
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});
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ringColor.addEventListener('input', () => {
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if (!uploadedImage) return;
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render();
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});
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canvas.addEventListener('mousedown', (e) => {
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isDragging = true;
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dragStartX = e.offsetX - imgX;
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dragStartY = e.offsetY - imgY;
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canvas.style.cursor = 'grabbing';
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});
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canvas.addEventListener('mouseup', () => {
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isDragging = false;
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canvas.style.cursor = 'grab';
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});
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canvas.addEventListener('mouseleave', () => {
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isDragging = false;
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canvas.style.cursor = 'grab';
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});
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canvas.addEventListener('mousemove', (e) => {
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if (isDragging && uploadedImage) {
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imgX = e.offsetX - dragStartX;
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imgY = e.offsetY - dragStartY;
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render();
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}
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});
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canvas.addEventListener('wheel', (e) => {
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if (!uploadedImage) return;
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e.preventDefault();
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const scaleAmount = -e.deltaY * 0.001;
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const prevScale = imgScale;
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imgScale *= (1 + scaleAmount);
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imgScale = Math.max(0.1, Math.min(10, imgScale));
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const rect = canvas.getBoundingClientRect();
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const mx = e.clientX - rect.left;
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const my = e.clientY - rect.top;
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const dx = mx - imgX;
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const dy = my - imgY;
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imgX -= dx * (imgScale / prevScale - 1);
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imgY -= dy * (imgScale / prevScale - 1);
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render();
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}, { passive: false });
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canvas.addEventListener('touchstart', (e) => {
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if (e.touches.length === 2) {
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lastDist = getDistance(e.touches[0], e.touches[1]);
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} else if (e.touches.length === 1) {
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touchDragging = true;
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touchStartX = e.touches[0].clientX;
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touchStartY = e.touches[0].clientY;
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touchImgX = imgX;
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touchImgY = imgY;
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}
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}, { passive: false });
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canvas.addEventListener('touchmove', (e) => {
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if (e.touches.length === 2 && uploadedImage) {
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e.preventDefault();
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const newDist = getDistance(e.touches[0], e.touches[1]);
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const scaleChange = newDist / lastDist;
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const prevScale = imgScale;
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imgScale *= scaleChange;
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imgScale = Math.max(0.1, Math.min(10, imgScale));
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const rect = canvas.getBoundingClientRect();
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const mx = (e.touches[0].clientX + e.touches[1].clientX) / 2 - rect.left;
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const my = (e.touches[0].clientY + e.touches[1].clientY) / 2 - rect.top;
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const dx = mx - imgX;
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const dy = my - imgY;
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imgX -= dx * (imgScale / prevScale - 1);
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imgY -= dy * (imgScale / prevScale - 1);
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lastDist = newDist;
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render();
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} else if (touchDragging && e.touches.length === 1 && uploadedImage) {
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e.preventDefault();
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const dx = e.touches[0].clientX - touchStartX;
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const dy = e.touches[0].clientY - touchStartY;
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imgX = touchImgX + dx;
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imgY = touchImgY + dy;
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render();
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}
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}, { passive: false });
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canvas.addEventListener('touchend', (e) => {
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if (e.touches.length === 0) {
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touchDragging = false;
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lastDist = null;
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}
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}, { passive: false });
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function getDistance(touch1, touch2) {
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const dx = touch2.clientX - touch1.clientX;
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const dy = touch2.clientY - touch1.clientY;
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return Math.sqrt(dx * dx + dy * dy);
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}
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downloadBtn.addEventListener('click', () => {
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if (!uploadedImage) {
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alert('Upload an image first.');
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return;
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}
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render();
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const dataUrl = canvas.toDataURL('image/png');
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const a = document.createElement('a');
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a.href = dataUrl;
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a.download = 'token.png';
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document.body.appendChild(a);
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a.click();
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document.body.removeChild(a);
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});
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</script>
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<p>This tool is released under a <a href="https://creativecommons.org/publicdomain/zero/1.0/">CC0 1.0 Universal</a> license. You can copy, modify, and distribute this tool, even for commercial purposes, all without asking permission.</p>
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<p>No images are saved to any server when using this tool. All file manipulation happens in your local web browser.</p>
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</body>
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</html>
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