Files
PyCanvas/index.html
2025-12-26 11:38:04 +00:00

360 lines
11 KiB
HTML

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Code Editor</title>
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/xterm/css/xterm.css" />
<script src="https://cdn.jsdelivr.net/npm/xterm/lib/xterm.js"></script>
<script src="https://cdn.jsdelivr.net/npm/xterm-addon-fit/lib/xterm-addon-fit.js"></script>
<script src="http://skulpt.org/js/skulpt.min.js"></script>
<script src="http://skulpt.org/js/skulpt-stdlib.js"></script>
<script src="https://unpkg.com/litecanvas/dist/dist.dev.js"></script>
</head>
<body>
<style>
:root {
--header-height: 48px;
--bg-dark: #1e1e1e;
--bg-editor: #272822;
/* Monokai background matches ACE default */
--bg-canvas: #0e0e0e;
--text-color: #f0f0f0;
--btn-bg: #f8f8f8;
--btn-hover: #e0e0e0;
--icon-color: #333;
}
body {
margin: 0;
padding: 0;
width: 100vw;
height: 100vh;
background-color: var(--bg-dark);
color: var(--text-color);
font-family: 'Inter', 'Segoe UI', Tahoma, sans-serif;
display: flex;
flex-direction: column;
overflow: hidden;
}
/* Header */
header {
height: var(--header-height);
background-color: #2c292d;
/* Slightly different dark */
display: flex;
align-items: center;
justify-content: space-between;
padding: 0 12px;
border-bottom: 1px solid #111;
z-index: 100;
}
.header-left,
.header-right {
display: flex;
gap: 8px;
}
.header-right {
float: right;
}
.label-btn {
height: 34px;
background-color: #f0f0e6;
border: 1px solid #ccc;
border-radius: 4px;
display: flex;
align-items: center;
justify-content: center;
cursor: pointer;
transition: background 0.2s;
padding: 2;
}
.label-btn p {
font-size: 16px;
font-weight: bold;
}
.icon-btn {
width: 34px;
height: 34px;
background-color: #f0f0e6;
border: 1px solid #ccc;
border-radius: 4px;
display: flex;
align-items: center;
justify-content: center;
cursor: pointer;
transition: background 0.2s;
padding: 0;
}
.icon-btn:hover {
background-color: #fff;
}
.icon-btn svg {
width: 20px;
height: 20px;
fill: #222;
}
main {
display: flex;
flex: 1;
height: calc(100vh - var(--header-height));
overflow: hidden;
}
#editor-container {
width: 50%;
height: 100%;
display: flex;
flex-direction: column;
background-color: var(--bg-editor);
border-right: 2px solid #333;
}
#editor {
flex: 1;
width: 100%;
height: 100%;
}
#preview-container {
width: 50%;
height: 100%;
background-color: var(--bg-canvas);
position: relative;
display: flex;
align-items: center;
justify-content: center;
overflow: hidden;
}
canvas {
width: 100%;
height: 100%;
display: block;
}
.overlay-text {
position: absolute;
pointer-events: none;
color: rgba(255, 255, 255, 0.7);
font-family: 'Segoe UI', sans-serif;
font-weight: 500;
}
#terminal-container {
height: 150px;
width: 100%;
background-color: #000;
border-top: 2px solid #333;
overflow: hidden;
display: block;
}
#terminal {
width: 100%;
height: 100%;
}
</style>
<header>
<div class="header-left">
<button class="label-btn" title="PyStudio">
<p>PyStudio</p>
</button>
<button class="icon-btn" title="Run Code" onclick="runCurrentCode()">
<svg viewBox="0 0 24 24">
<path d="M8 5v14l11-7z" />
</svg>
</button>
<button class="icon-btn" title="Stop Code" onclick="stopCurrentCode()">
<svg viewBox="0 0 24 24">
<path d="M6 6h12v12H6z" />
</svg>
</button>
</div>
</header>
<main>
<div id="editor-container">
<div id="editor"></div>
<div id="terminal-container">
<div id="terminal"></div>
</div>
</div>
<div id="preview-container">
<canvas id="canvas"></canvas>
</div>
</main>
<script src="https://www.unpkg.com/ace-builds@latest/src-noconflict/ace.js" crossorigin="anonymous"></script>
<script>
codeEditor = ace.edit("editor", {
theme: "ace/theme/monokai",
mode: "ace/mode/python",
value: "import screen as s\n\ndef draw():\n s.cls(0)\n s.text(20, 20, \"Hello World!\", 3)\n\ns.start({\n \"loop\":{\n \"draw\":draw\n }\n})",
fontFamily: 'Consolas, monospace',
fontSize: '14px'
});
codeEditor.setShowPrintMargin(false);
let StopExecution;
let term;
let fitAddon;
let inputResolve;
term = new Terminal({
cursorBlink: true,
theme: {
background: '#1e1e1e'
},
scrollback: 10000,
allowProposedApi: true
});
fitAddon = new FitAddon.FitAddon();
term.loadAddon(fitAddon);
term.open(document.getElementById('terminal'));
// Use a small timeout to ensure the DOM is ready before fitting
setTimeout(() => fitAddon.fit(), 0);
function outf(text) {
term.write(text.replace(/\n/g, '\r\n'));
}
function inputf(promptText = '') {
return new Promise(resolve => {
inputBuffer = '';
inputResolve = resolve;
acceptingInput = true;
console.log("Input requested: " + promptText);
});
}
function stopCurrentCode() {
StopExecution = true;
if (window.__lc_instance) {
if (window.__lc_instance.pause) window.__lc_instance.pause();
window.__lc_instance = null;
}
const oldCanvas = document.getElementById('canvas');
if (oldCanvas) {
const newCanvas = oldCanvas.cloneNode(true);
oldCanvas.parentNode.replaceChild(newCanvas, oldCanvas);
const ctx = newCanvas.getContext('2d');
if (ctx) {
ctx.fillStyle = '#0e0e0e';
ctx.fillRect(0, 0, newCanvas.width, newCanvas.height);
}
}
const globals = ['W', 'H', 'T', 'MX', 'MY', 'CENTERX', 'CENTERY', 'ENGINE', 'WIDTH', 'HEIGHT'];
globals.forEach(g => {
delete window[g];
window[g] = undefined;
});
}
function builtinRead(x) {
if (x === 'screen' || x === './screen.js') {
const url = new URL('screen.js?t=' + Date.now(), window.location.href).href;
const xhr = new XMLHttpRequest();
xhr.open("GET", url, false);
xhr.send();
if (xhr.status === 200) return xhr.responseText;
else throw "Could not load screen.js";
}
if (Sk.builtinFiles === undefined || Sk.builtinFiles["files"][x] === undefined)
if (x === 'src/builtin/sys.js') return '';
else throw "File not found: '" + x + "'";
return Sk.builtinFiles["files"][x];
}
function runCurrentCode() {
stopCurrentCode();
if (term) term.clear();
StopExecution = false;
var code = codeEditor.getValue();
const canvas = document.getElementById('canvas');
const container = document.getElementById('preview-container');
if (canvas && container) {
const w = Math.floor(container.clientWidth);
const h = Math.floor(container.clientHeight);
canvas.width = w;
canvas.height = h;
}
Sk.configure({
output: outf,
read: builtinRead,
inputfun: inputf,
inputfunTakesPrompt: true
});
Sk.misceval.asyncToPromise(() => Sk.importMainWithBody('<stdin>', false, code, true), {
"*": () => {
if (StopExecution) throw "Execution interrupted"
}
})
.catch(err => {
if (err !== "Execution interrupted") outf(err.toString() + "\n");
});
}
function toggleEditor() {
runCurrentCode();
}
function takeScreenshot() {
const canvas = document.getElementById('canvas');
if (canvas) {
const link = document.createElement('a');
link.download = 'litecanvas-screenshot.png';
link.href = canvas.toDataURL();
link.click();
}
}
document.addEventListener('keydown', function (e) {
if ((e.ctrlKey || e.metaKey) && e.key === 'Enter') {
e.preventDefault();
runCurrentCode();
}
});
window.addEventListener('load', () => {
setTimeout(runCurrentCode, 100);
});
window.addEventListener('resize', () => {
const canvas = document.getElementById('canvas');
const container = document.getElementById('preview-container');
if (canvas && container) {
canvas.width = container.clientWidth;
canvas.height = container.clientHeight;
}
if (fitAddon) {
fitAddon.fit();
}
});
</script>
</body>
</html>