penpot/frontend/resources/wasm-playground/texts.html
2025-05-30 12:10:34 +02:00

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HTML

<!DOCTYPE html>
<html lang="es">
<head>
<meta charset="UTF-8" />
<title>WASM + WebGL2 Texts</title>
<style>
body {
margin: 0;
background: #111;
display: flex;
justify-content: center;
align-items: center;
height: 100vh;
overflow: hidden;
}
canvas {
width: 100%;
height: 100%;
position: absolute;
}
</style>
</head>
<body>
<canvas id="canvas"></canvas>
<script type="module">
import initWasmModule from '/js/render_wasm.js';
import {
init, assignCanvas, setupInteraction, useShape, setShapeChildren, addTextShape, hexToU32ARGB,getRandomInt, getRandomColor, getRandomFloat, addShapeSolidFill, addShapeSolidStrokeFill
} from './js/lib.js';
const canvas = document.getElementById("canvas");
canvas.width = window.innerWidth;
canvas.height = window.innerHeight;
const MIN_LINES = 1;
const MAX_LINES = 5;
const MIN_WORDS = 1;
const MAX_WORDS = 10;
const params = new URLSearchParams(document.location.search);
const texts = params.get("texts") || 100;
function getRandomText() {
const words = ["Hello", "World", "Penpot", "Canvas", "Text", "Shape", "Random", "Line"];
const lines = Math.floor(Math.random() * MAX_LINES) + MIN_LINES;
let text = "";
for (let i = 0; i < lines; i++) {
const lineLength = Math.floor(Math.random() * MAX_WORDS) + MIN_WORDS;
const line = Array.from({ length: lineLength }, () => words[Math.floor(Math.random() * words.length)]).join(" ");
text += line;
if (i < lines - 1) text += "\n";
}
return text;
}
initWasmModule().then(Module => {
init(Module);
assignCanvas(canvas);
Module._set_canvas_background(hexToU32ARGB("#FABADA", 1));
Module._set_view(1, 0, 0);
Module._init_shapes_pool(texts + 1);
setupInteraction(canvas);
const children = [];
for (let i = 0; i < texts; i++) {
const uuid = crypto.randomUUID();
children.push(uuid);
useShape(uuid);
Module._set_parent(0, 0, 0, 0);
Module._set_shape_type(5);
const x1 = getRandomInt(0, canvas.width);
const y1 = getRandomInt(0, canvas.height);
const width = getRandomInt(20, 500);
const height = getRandomInt(20, 100);
Module._set_shape_selrect(x1, y1, x1 + width, y1 + height);
if (Math.random() < 0.3) {
const numStrokes = getRandomInt(1, 3);
for (let j = 0; j < numStrokes; j++) {
const strokeWidth = getRandomInt(1, 10);
Module._add_shape_center_stroke(strokeWidth, 0, 0, 0);
const color = getRandomColor();
const argb2 = hexToU32ARGB(color, getRandomFloat(0.1, 1.0));
addShapeSolidStrokeFill(argb2);
}
}
const fontSize = Math.random() * 50 + 10;
const text = getRandomText();
addTextShape(x1, y1, fontSize, text);
}
useShape("00000000-0000-0000-0000-000000000000");
setShapeChildren(children);
performance.mark('render:begin');
Module._render(Date.now());
performance.mark('render:end');
const { duration } = performance.measure('render', 'render:begin', 'render:end');
console.log(`Render time: ${duration.toFixed(2)}ms`);
});
</script>
</body>
</html>