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sketchpad.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Digital Sketchpad</title>
<style>
/* Basic reset */
* {
box-sizing: border-box;
margin: 0;
padding: 0;
font-family: Arial, sans-serif;
}
body {
display: flex;
align-items: center;
justify-content: center;
min-height: 100vh;
background-color: #7fd8f8;
}
.container {
text-align: center;
}
#canvas {
border: 2px solid #333;
background-color: #fff;
cursor: crosshair;
}
.controls {
margin: 20px 0;
}
.controls input[type="color"],
.controls input[type="range"],
.controls button {
margin-right: 10px;
padding: 5px;
font-size: 1rem;
}
</style>
</head>
<body>
<div class="container">
<h1>Digital Sketchpad</h1>
<div class="controls">
<label for="colorPicker">Color:</label>
<input type="color" id="colorPicker" value="#000000">
<label for="brushSize">Brush Size:</label>
<input type="range" id="brushSize" min="1" max="30" value="5">
<button id="clearCanvas">Clear</button>
</div>
<canvas id="canvas" width="600" height="400"></canvas>
</div>
<script>
const canvas = document.getElementById('canvas');
const ctx = canvas.getContext('2d');
const colorPicker = document.getElementById('colorPicker');
const brushSize = document.getElementById('brushSize');
const clearCanvas = document.getElementById('clearCanvas');
let painting = false;
let brushColor = colorPicker.value;
let brushWidth = brushSize.value;
// Event listeners for canvas drawing
canvas.addEventListener('mousedown', startPainting);
canvas.addEventListener('mouseup', stopPainting);
canvas.addEventListener('mousemove', draw);
// Event listeners for color and brush size change
colorPicker.addEventListener('input', (e) => brushColor = e.target.value);
brushSize.addEventListener('input', (e) => brushWidth = e.target.value);
// Clear button event
clearCanvas.addEventListener('click', clearCanvasArea);
function startPainting(e) {
painting = true;
draw(e); // Draw the first dot immediately
}
function stopPainting() {
painting = false;
ctx.beginPath(); // Start a new path after stopping
}
function draw(e) {
if (!painting) return;
ctx.lineWidth = brushWidth;
ctx.lineCap = 'round';
ctx.strokeStyle = brushColor;
ctx.lineTo(e.clientX - canvas.offsetLeft, e.clientY - canvas.offsetTop);
ctx.stroke();
ctx.beginPath();
ctx.moveTo(e.clientX - canvas.offsetLeft, e.clientY - canvas.offsetTop);
}
function clearCanvasArea() {
ctx.clearRect(0, 0, canvas.width, canvas.height);
}
</script>
</body>
</html>