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71 lines
2.1 KiB
HTML
71 lines
2.1 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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</style>
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</head>
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<body>
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<div class="container">
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<h1>Cropper with a range of aspect ratio</h1>
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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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</div>
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<script src="../dist/cropper.js"></script>
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<script>
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window.addEventListener('DOMContentLoaded', function () {
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var image = document.querySelector('#image');
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var minAspectRatio = 0.5;
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var maxAspectRatio = 1.5;
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var cropper = new Cropper(image, {
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ready: function () {
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var cropper = this.cropper;
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var containerData = cropper.getContainerData();
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var cropBoxData = cropper.getCropBoxData();
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var aspectRatio = cropBoxData.width / cropBoxData.height;
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var newCropBoxWidth;
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if (aspectRatio < minAspectRatio || aspectRatio > maxAspectRatio) {
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newCropBoxWidth = cropBoxData.height * ((minAspectRatio + maxAspectRatio) / 2);
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cropper.setCropBoxData({
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left: (containerData.width - newCropBoxWidth) / 2,
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width: newCropBoxWidth
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});
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}
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},
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cropmove: function () {
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var cropper = this.cropper;
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var cropBoxData = cropper.getCropBoxData();
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var aspectRatio = cropBoxData.width / cropBoxData.height;
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if (aspectRatio < minAspectRatio) {
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cropper.setCropBoxData({
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width: cropBoxData.height * minAspectRatio
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});
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} else if (aspectRatio > maxAspectRatio) {
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cropper.setCropBoxData({
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width: cropBoxData.height * maxAspectRatio
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});
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}
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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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