day 22 completed

pull/109/head
couldntfindabetterusername 4 years ago
parent eafca9af7d
commit 75e54ae6a4

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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>21 drawing app</title>
<link rel="stylesheet" href="style.css">
</head>
<body>
<div class="container">
<canvas id="canvas"></canvas>
<div class="toolbar">
<div class="input">
<button id="dec">-</button>
<span id="stroke"></span>
<button id="inc">+</button>
<input type="color" name="color" id="color">
</div>
<div class="clear"><button id="clear"> X</button></div>
</div>
</div>
<script src="script.js"></script>
</body>
</html>

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let strokeValue = 10;
const incCounter = document.getElementById("inc");
const decCounter = document.getElementById("dec");
const stroke = document.getElementById("stroke");
const color = document.getElementById("color");
let colorVal = color.value;
let isPressed = false;
let x, y;
stroke.innerText = strokeValue;
incCounter.addEventListener("click", () => {
if (strokeValue < 50) {
strokeValue = strokeValue + 5;
stroke.innerText = strokeValue;
}
});
decCounter.addEventListener("click", () => {
if (strokeValue > 5) {
strokeValue = strokeValue - 5;
stroke.innerText = strokeValue;
}
});
const canvas = document.getElementById("canvas");
const ctx = canvas.getContext("2d");
canvas.addEventListener("mousedown", (e) => {
isPressed = true;
x = e.offsetX;
y = e.offsetY;
});
document.addEventListener("mouseup", (e) => {
isPressed = false;
x = undefined;
y = undefined;
});
canvas.addEventListener("mousemove", (e) => {
if (isPressed) {
const x2 = e.offsetX;
const y2 = e.offsetY;
drawCircle(x2, y2);
drawLine(x, y, x2, y2);
x = x2;
y = y2;
}
});
function drawCircle(x, y) {
ctx.beginPath();
ctx.arc(x, y, strokeValue, 0, Math.PI * 2);
ctx.fillStyle = colorVal;
ctx.fill();
}
function drawLine(x1, y1, x2, y2) {
ctx.beginPath();
ctx.moveTo(x1, y1);
ctx.lineTo(x2, y2);
ctx.strokeStyle = colorVal;
ctx.lineWidth = strokeValue * 2;
ctx.stroke();
}

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* {
margin: 0;
padding: 0;
box-sizing: border-box;
}
body {
height: 100vh;
overflow: hidden;
}
.container {
height: 100%;
margin: auto;
width: 800px;
}
#canvas {
width: 100%;
height: 85%;
border: 2px solid skyblue;
}
.toolbar {
width: 100%;
height: 15%;
display: flex;
background-color: skyblue;
justify-content: space-between;
}
.input,
.clear {
margin: 20px;
}
.input {
display: grid;
grid-template-columns: repeat(4, 1fr);
grid-gap: 10px;
}
button,
input,
span {
display: flex;
justify-content: center;
align-items: center;
padding: 0 20px;
background-color: #fff;
border: unset;
font-size: 20px;
font-family: Arial, Helvetica, sans-serif;
font-weight: 600;
height: 100%;
}
#color {
padding: unset;
}
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