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Hora de Desenhar - App de Desenho

Jan 6, 2024

About this app

Hora de Desenhar - Um app divertido para desenhar e criar obras de arte!

Hora de Desenhar - App de Desenho Limpar Preto Vermelho Verde Azul

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Source

                    <html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width,initial-scale=1">

<title>Hora de Desenhar - App de Desenho</title>
<meta name="description" content="Hora de Desenhar - Um app divertido para desenhar e criar obras de arte!">
<meta name="keywords" content="desenhar, app, arte, pintura, desenho, criatividade">

<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.6.0/jquery.min.js"></script>
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/css/bootstrap.min.css" rel="stylesheet"
integrity="sha384-EVSTQN3/azprG1Anm3QDgpJLIm9Nao0Yz1ztcQTwFspd3yD65VohhpuuCOmLASjC" crossorigin="anonymous">
<link href="https://stackpath.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css" rel="stylesheet">
<link href="https://fonts.googleapis.com/css2?family=Roboto:wght@400;700&display=swap" rel="stylesheet">

<script type="text/javascript">
try {
// App Javascript Goes Here. Place your entire script content inside the try block for error handling.

// This will run when the DOM is ready.
document.addEventListener("DOMContentLoaded", function() {
// Canvas variables
var canvas = document.getElementById("canvas");
var context = canvas.getContext("2d");
var isDrawing = false;
var lastX = 0;
var lastY = 0;

// Set canvas size
canvas.width = window.innerWidth;
canvas.height = window.innerHeight;

// Set initial pen color
context.strokeStyle = "#000000";

// Event listeners
canvas.addEventListener("mousedown", startDrawing);
canvas.addEventListener("mousemove", draw);
canvas.addEventListener("mouseup", stopDrawing);
canvas.addEventListener("mouseout", stopDrawing);

// Start drawing
function startDrawing(e) {
isDrawing = true;
[lastX, lastY] = [e.clientX, e.clientY];
}

// Draw on canvas
function draw(e) {
if (!isDrawing) return;
context.beginPath();
context.moveTo(lastX, lastY);
context.lineTo(e.clientX, e.clientY);
context.stroke();
[lastX, lastY] = [e.clientX, e.clientY];
}

// Stop drawing
function stopDrawing() {
isDrawing = false;
}

// Clear canvas
function clearCanvas() {
context.clearRect(0, 0, canvas.width, canvas.height);
}

// Change pen color
function changeColor(color) {
context.strokeStyle = color;
}
});

} catch (error) {
// This will throw the error to the parent window.
throw error;
}
</script>

<style>
/* App CSS Goes Here */
body {
margin: 0;
padding: 0;
background-color: #f8f8f8;
font-family: 'Roboto', sans-serif;
}

#canvas {
display: block;
margin: 0 auto;
background-color: #ffffff;
box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

.controls {
display: flex;
justify-content: center;
margin-top: 20px;
}

.controls button {
margin: 0 10px;
padding: 10px 20px;
background-color: #4285f4;
color: #ffffff;
border: none;
border-radius: 5px;
font-size: 16px;
cursor: pointer;
transition: background-color 0.3s ease;
}

.controls button:hover {
background-color: #3367d6;
}
</style>
</head>
<body>
<div id="main-container" class="container">
<canvas id="canvas"></canvas>

<div class="controls">
<button onclick="clearCanvas()">Limpar</button>
<button onclick="changeColor('#000000')">Preto</button>
<button onclick="changeColor('#ff0000')">Vermelho</button>
<button onclick="changeColor('#00ff00')">Verde</button>
<button onclick="changeColor('#0000ff')">Azul</button>
</div>
</div>
</body>
</html>