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-<!DOCTYPE html>
-<html lang="en">
-
-<head>
- <meta charset="utf-8">
- <meta http-equiv="x-ua-compatible" content="ie=edge">
- <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
- <title>Cropper.js</title>
- <link rel="stylesheet" href="../dist/cropper.css">
- <style>
- .container {
- max-width: 640px;
- margin: 20px auto;
- }
-
- img {
- max-width: 100%;
- }
-
- .cropper-view-box,
- .cropper-face {
- background-color: black;
- opacity: 1;
- }
-
- </style>
-</head>
-
-<body>
-
- <div class="container">
- <h1>Mask an image (Redaction)</h1>
- <h3>Image</h3>
- <div>
- <img id="image" src="../docs/images/picture.jpg" alt="Picture">
- </div>
- <h3>Result</h3>
- <p><button type="button" id="button">Mask</button></p>
- <div id="result"></div>
- </div>
-
- <script src="../dist/cropper.js"></script>
- <script>
- (function () {
-
- function getMaskedCanvas(sourceCanvas, sourceImage, cropper) {
- var canvas = document.createElement('canvas');
- var context = canvas.getContext('2d');
-
- var maskWidth = cropper.getData().width;
- var maskHeight = cropper.getData().height;
- var maskTop = cropper.getData().y;
- var maskLeft = cropper.getData().x;
-
- var imageWidth = cropper.getImageData().naturalWidth;
- var imageHeight = cropper.getImageData().naturalHeight;
- var imageLeft = cropper.getImageData().left;
- var imageTop = cropper.getImageData().top;
- var imageAspect = cropper.getImageData().aspectRatio;
-
- canvas.width = imageWidth;
- canvas.height = imageHeight;
-
- // debug
- console.log('Image Width: ' + imageWidth + ' Image Height: ' + imageHeight + ' Image Aspect Ratio: ' + imageAspect );
- console.log('Image Left: ' + imageLeft + ' Image Top: ' + imageTop );
- console.log('Mask Width: ' + maskWidth + ' Mask Height: ' + maskHeight + ' Mask Left: ' + maskLeft + ' Mask Top: ' + maskTop);
-
- context.imageSmoothingEnabled = true;
- context.drawImage(image, 0, 0, imageWidth, imageHeight);
- context.fillRect(maskLeft, maskTop, maskWidth, maskHeight);
-
- return canvas;
- }
-
- window.addEventListener('DOMContentLoaded', function () {
- var image = document.getElementById('image');
- var button = document.getElementById('button');
- var result = document.getElementById('result');
- var croppable = false;
- var cropper = new Cropper(image, {
- viewMode: 0,
- guides: true,
- center: true,
- highlight: true,
- cropBoxMovable: true,
- cropBoxResizable: true,
- ready: function () {
- croppable = true;
- }
- });
-
- button.onclick = function () {
- var croppedCanvas;
- var roundedCanvas;
- var roundedImage;
-
- if (!croppable) {
- return;
- }
-
- // Crop
- croppedCanvas = cropper.getCroppedCanvas();
-
- // Mask
- maskedCanvas = getMaskedCanvas(croppedCanvas, image, cropper);
-
- // Show
- maskedImage = document.createElement('img');
- maskedImage.src = maskedCanvas.toDataURL()
- result.innerHTML = '';
- result.appendChild(maskedImage);
-
- };
-
- });
-
- })();
-
- </script>
-</body>
-
-</html>