Created
April 14, 2017 02:04
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Created during LearnToProgram.tv's hack night on 4/13/2017
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<!DOCTYPE html> | |
<html> | |
<head> | |
<title>Fingerpaint</title> | |
<style> | |
h1 | |
{ | |
font-family: Arial; | |
} | |
canvas | |
{ | |
border: 1px solid black; | |
} | |
label | |
{ | |
font-family: Arial; | |
} | |
</style> | |
</head> | |
<body> | |
<h1>Fingerpaint</h1> | |
<canvas id="myCanvas" width="600px" height="600px"></canvas><br/> | |
<label for="color">Color: </label><input type="color" id="color"/><br/> | |
<label for="stroke">Stroke Width: </label><input type="range" min="0" max="25" id="stroke"/><br/> | |
<button id="btnClear">Clear</button> | |
<script> | |
var drawing = false; | |
var context = document.getElementById('myCanvas').getContext("2d"); | |
document.getElementById('myCanvas').addEventListener("mousedown", downOnCanvas); | |
document.getElementById('myCanvas').addEventListener("mouseup", upOnCanvas); | |
document.getElementById('myCanvas').addEventListener("mousemove", draw); | |
document.getElementById('btnClear').addEventListener('click', function(){ | |
context.clearRect(0,0,600,600); | |
}); | |
function downOnCanvas(e) | |
{ | |
drawing = true; | |
console.log(e); | |
context.moveTo(e.offsetX, e.offsetY); | |
context.beginPath(); | |
var color= document.getElementById('color').value; | |
var width = document.getElementById('stroke').value; | |
context.strokeStyle = color; | |
context.lineWidth = width; | |
} | |
function upOnCanvas(e) | |
{ | |
drawing = false; | |
context.closePath(); | |
console.log("not drawing"); | |
} | |
function draw(e) | |
{ | |
// console.log(e.offsetX + " " + e.offsetY); | |
if(drawing) | |
{ | |
context.lineTo(e.offsetX, e.offsetY); | |
context.stroke(); | |
} | |
} | |
</script> | |
</body> | |
</html> |
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