djaodjin-annotate.js is a simple jquery plugin allowing you to annotate a screenshot. Try the live demo on DjaoDjin blog.
Load djaodjin-annotate.css and djaodjin-annotate.js
<!DOCTYPE html>
<html>
<head>
<meta charset=utf-8 />
<title></title>
<link rel="stylesheet" type="text/css" href="/static/css/annotate.css" />
</head>
<body>
<script type="text/javascript" src="//code.jquery.com/jquery-1.11.3.min.js"></script>
<script type="text/javascript" src="/static/js/djaodjin-annotate.js"></script>
</body>
</html>Just add a div element inside ```body``.
<div id="myCanvas"></div>and on a script:
$(document).ready(function(){
$("#myCanvas").annotate(options);
});customizable options:
options = {
width: "640", // Width of canvas
height: "400", // Height of canvas
color:"red", // Color for shape and text
type : "rectangle", // default shape: can be "rectangle", "arrow" or "text"
images: null, // Array of images path : ["images/image1.png", "images/image2.png"]
linewidth:2, // Line width for rectangle and arrow shapes
fontsize:"20px", // font size for text
bootstrap: true, // Bootstrap theme design
position: "top", // Position of toolbar (available only with bootstrap)
idAttribute: "id", // Attribute to select image id.
selectEvent: "change", // listened event to select image
unselectTool: false // display an unselect tool for mobile
onExport: function(image){} // Action when export function is called, with data uri as params (default log to console)
}Once initialized, it can be destroy:
$("#myCanvas").annotate("destroy");It's also possible to provide new images by pushing them:
- Push an image with only path: (If image exists an id will be automatically created.)
$("#myCanvas").annotate("push", "images/test_2.jpg");- Push an image with and id and a path: (allow to build an image selector manually)
$("#myCanvas").annotate("push", {id:"unique_identifier", path: "images/test_2.jpg"});$("#myCanvas").annotate("export", exportOptions);Returns the image in Data URI format.
- ExportOptions
{
type: "image/jpeg" // ex: "image/png"
quality: 0.75 // Available only for "image/jpeg"
}annotate-image-added: Fired when an image is initialized (plugin initialization or when a new image is pushed). Can be used to build image selector.
ex:
$('#myCanvas').on("annotate-image-added", function(event, id, path){
$(".my-image-selector").append("<label><input type=\"radio\" name=\"image-selector\" class=\"annotate-image-select\" id=\"" + id + "\" checked><img src=\"" + path + "\" width=\"35\" height=\"35\"></label>");
});If multiple images provided, an image selector is necessary to switch. Image selector must trigger an event on annotate-image-select class. you can custom the event by using selectEvent option (default: change) and custom the readable image attribute by using idAttribute option (default: id)
The djaodjin-annotate project is using Google Javascript style guidelines, mechanically enforced through the eslint-config-google eslint plug-in. Thank you to @Josephdias92 for the initial work on this.
- Fix destroy method
- Responsive annotation position
- Reponsive line width and font size
- Ability to destroy an annotate instance
- work with multiple images
- Ability add new image after initialization
- bower release
#License
Copyright (c) 2015, Djaodjin Inc.
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.