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103 lines
2.5 KiB
HTML
103 lines
2.5 KiB
HTML
<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="utf-8">
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<meta http-equiv="x-ua-compatible" content="ie=edge">
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<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
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<title>Cropper.js</title>
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<link rel="stylesheet" href="../dist/cropper.css">
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<style>
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.container {
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max-width: 640px;
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margin: 20px auto;
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}
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img {
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max-width: 100%;
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}
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.cropper-view-box,
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.cropper-face {
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border-radius: 50%;
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}
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</style>
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</head>
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<body>
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<div class="container">
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<h1>Crop a round image</h1>
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<h3>Image</h3>
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<div>
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<img id="image" src="../docs/images/picture.jpg" alt="Picture">
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</div>
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<h3>Result</h3>
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<p>
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<button type="button" id="button">Crop</button>
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</p>
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<div id="result"></div>
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</div>
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<script src="../dist/cropper.js"></script>
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<script>
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(function () {
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function getRoundedCanvas(sourceCanvas) {
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var canvas = document.createElement('canvas');
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var context = canvas.getContext('2d');
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var width = sourceCanvas.width;
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var height = sourceCanvas.height;
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canvas.width = width;
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canvas.height = height;
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context.imageSmoothingEnabled = true;
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context.drawImage(sourceCanvas, 0, 0, width, height);
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context.globalCompositeOperation = 'destination-in';
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context.beginPath();
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context.arc(width / 2, height / 2, Math.min(width, height) / 2, 0, 2 * Math.PI, true);
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context.fill();
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return canvas;
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}
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window.addEventListener('DOMContentLoaded', function () {
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var image = document.getElementById('image');
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var button = document.getElementById('button');
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var result = document.getElementById('result');
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var croppable = false;
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var cropper = new Cropper(image, {
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aspectRatio: 1,
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viewMode: 1,
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ready: function () {
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croppable = true;
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}
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});
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button.onclick = function () {
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var croppedCanvas;
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var roundedCanvas;
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var roundedImage;
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if (!croppable) {
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return;
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}
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// Crop
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croppedCanvas = cropper.getCroppedCanvas();
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// Round
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roundedCanvas = getRoundedCanvas(croppedCanvas);
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// Show
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roundedImage = document.createElement('img');
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roundedImage.src = roundedCanvas.toDataURL()
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result.innerHTML = '';
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result.appendChild(roundedImage);
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};
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});
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})();
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</script>
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</body>
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</html>
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