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demo-debug-info.html
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>PortrayCanvas Demo</title>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css"
integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
<style type="text/css">
a {
color: #6592A8;
font-weight: bold;
}
a:hover {
color: #345E73;
}
#canvas-main {
-webkit-user-select: none;
-moz-user-select: none;
-ms-user-select: none;
user-select: none;
touch-action: none;
width: 100%;
border: 5px solid #D0E3EC;
color: #000;
}
#lines-data-container {
height: 150px;
overflow-y: scroll;
background-color: #6592A8;
color: #D0E3EC;
font-weight: bold;
padding: 15px;
}
/* For big screen */
@media only screen and (min-width: 768px) {
#lines-data-container {
height: 350px;
}
}
.small-icon:hover,
.small-icon:active,
.small-icon:focus {
text-decoration: none;
}
.small-icon img {
width: 23px;
opacity: 0.5;
transition: 1.5s;
}
.small-icon img:hover {
opacity: 1;
}
</style>
<script src="dist/portraycanvas.min.js"></script>
</head>
<body>
<div class="container-fluid">
<h2 class="mt-4 mb-4">PortrayCanvas Demo</h2>
<p>
Javascript library for handwriting and drawing. Useful for getting handwritten user input.
</p>
<div class="row mb-4">
<div class="col-md-12">
<a href="https://github.com/ChrisVilches/PortrayCanvas" class="small-icon mr-2" target="_blank">
<img src="https://cdn.jsdelivr.net/npm/simple-icons@v5/icons/github.svg" />
</a>
<a href="https://www.npmjs.com/package/portraycanvas" class="small-icon mr-2" target="_blank">
<img src="https://cdn.jsdelivr.net/npm/simple-icons@v5/icons/npm.svg" />
</a>
<small>By <a href="http://www.chrisvilches.com/" target="_blank">Chris Vilches</a></small>
</div>
</div>
<div class="row">
<div class="mb-2 col-md-6 col-lg-4">
<canvas id="canvas-main" height="500" width="500"></canvas>
</div>
<div class="mb-2 col-md-6 col-lg-8">
<pre id="lines-data-container"></pre>
</div>
</div>
<!-- Do some things programmatically -->
<div class="row mb-4">
<div class="col-md-7">
<button class="btn btn-secondary" onclick="canvas.clear()">Clear</button>
<button class="btn btn-secondary" onclick="canvas.undo()">Undo line</button>
<input type="color" value="#000000" oninput="onChangeColor(this)" />
</div>
</div>
</div>
<script>
var canvas;
function onChangeColor(ele) {
var hexColor = ele.value;
canvas.setColor(hexColor);
}
function showCurrentLines() {
var lines = canvas.getLines();
var content;
if (lines.length > 0) {
content = JSON.stringify(lines.reverse(), null, 2);
} else {
content = '<i>No lines yet.</i>'
}
$("#lines-data-container").html(content);
}
canvas = new PortrayCanvas(document.getElementById("canvas-main"), {
lineWidth: 2,
period: 20,
onLineFinish: function (c) {
showCurrentLines();
},
onClear: function () {
showCurrentLines();
},
onUndo: function (line) {
showCurrentLines();
}
});
showCurrentLines();
</script>
</body>
</html>