From 82d9882319895cb70da92289f009a4d01c8aad40 Mon Sep 17 00:00:00 2001 From: Michael Czechowski Date: Fri, 29 May 2026 12:06:14 +0200 Subject: [PATCH] Port logo generator to vanilla JS + Vite Restructure the single-file demo into a Vite project: - src/logo.js: framework-agnostic core (shadow-layer geometry, inline text-shadow, generated CSS snippet, defaults, font list) - src/main.js: DOM wiring (state read, live render, copy, native reset) - src/style.css, index.html: markup + styles with the accessibility fixes (labels, aria,
/,
reset, focus rings) The original single-file version lives on the 'html' branch. Co-Authored-By: Claude Opus 4.7 (1M context) --- .gitignore | 4 + index.html | 106 +++++ package-lock.json | 1144 +++++++++++++++++++++++++++++++++++++++++++++ package.json | 19 + src/logo.js | 99 ++++ src/main.js | 83 ++++ src/style.css | 168 +++++++ vite.config.js | 5 + 8 files changed, 1628 insertions(+) create mode 100644 .gitignore create mode 100644 index.html create mode 100644 package-lock.json create mode 100644 package.json create mode 100644 src/logo.js create mode 100644 src/main.js create mode 100644 src/style.css create mode 100644 vite.config.js diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..7535211 --- /dev/null +++ b/.gitignore @@ -0,0 +1,4 @@ +node_modules +dist +*.log +.DS_Store diff --git a/index.html b/index.html new file mode 100644 index 0000000..b303957 --- /dev/null +++ b/index.html @@ -0,0 +1,106 @@ + + + + + + Logo-Generator + + + + + +
+ Panel ein/aus + +
+

Logo-Generator

+ + +

Inhalt

+

Mehrere Zeilen mit Enter trennen.

+ + +

Schrift

+ +
+
+ + +
+
+ + +
+
+ + + +

Farben

+
+ + Hintergrund + #362582 +
+
+ + Face + #f6d939 +
+
+ + Tiefe + #ea741e +
+
+ + Schatten & Kontur + #221953 +
+ +

Lichtrichtung

+

Steuert alle Versätze gleichzeitig — Schatten geht in Lichtrichtung, Tiefe entgegen.

+ + + +

Schichten

+

Hinten nach vorn: Schatten · Tiefe · Kontur · Face

+ + + + + + + +

Komposition

+
+
+ + +
+
+ + +
+
+ +

Generiertes CSS

+ + + + +
+
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"WTFPL", + "type": "module", + "scripts": { + "dev": "vite", + "build": "vite build", + "preview": "vite preview" + }, + "devDependencies": { + "vite": "^6.0.0" + } +} diff --git a/src/logo.js b/src/logo.js new file mode 100644 index 0000000..fc64ddc --- /dev/null +++ b/src/logo.js @@ -0,0 +1,99 @@ +// Framework-agnostic core for the logo generator. +// State shape (see `defaults`) is shared by every port. + +export const defaults = { + text: 'LIBRE\nTECH', + font: 'Anton', + fs: 18, + lh: 1.05, + ls: 0.01, + bg: '#362582', + face: '#f6d939', + depth: '#ea741e', + shadow: '#221953', + angle: 133, + shadowLen: 30, + depthLen: 15, + contourLen: 11, + rot: -10, + skew: -8, +}; + +export const fonts = [ + 'Anton', + 'Bowlby One', + 'Bebas Neue', + 'Bungee', + 'Passion One', + 'Ultra', + 'Impact', +]; + +const round = (n) => Math.round(n * 100) / 100; + +// Layered text-shadow offsets. `depthColor`/`shadowColor` are substituted +// so the same geometry serves both the live render (literal hex) and the +// generated snippet (CSS var()). +export function shadowLayers(s, depthColor, shadowColor) { + const rad = (s.angle * Math.PI) / 180; + const dx = Math.sin(rad); + const dy = -Math.cos(rad); + const parts = []; + // Kontur (front): steps along the light direction, shadow colour. + for (let i = 1; i <= s.contourLen; i++) { + parts.push(`${round(dx * i)}px ${round(dy * i)}px 0 ${shadowColor}`); + } + // Tiefe (middle): opposite direction. + for (let i = 1; i <= s.depthLen; i++) { + parts.push(`${round(-dx * i)}px ${round(-dy * i)}px 0 ${depthColor}`); + } + // Schatten (back): long, same direction as Kontur; continue past + // contourLen so steps do not overlap. + for (let i = s.contourLen + 1; i <= s.contourLen + s.shadowLen; i++) { + parts.push(`${round(dx * i)}px ${round(dy * i)}px 0 ${shadowColor}`); + } + return parts; +} + +export function inlineTextShadow(s) { + const parts = shadowLayers(s, s.depth, s.shadow); + return parts.length ? parts.join(', ') : 'none'; +} + +export function logoStyle(s) { + return { + fontFamily: `'${s.font}', 'Bebas Neue', Impact, sans-serif`, + fontSize: `${s.fs}vw`, + lineHeight: String(s.lh), + letterSpacing: `${s.ls}em`, + color: s.face, + transform: `rotate(${s.rot}deg) skewX(${s.skew}deg)`, + textShadow: inlineTextShadow(s), + }; +} + +export function cssOutput(s) { + const lines = shadowLayers(s, 'var(--depth)', 'var(--shadow)').map((l) => ' ' + l); + return `:root { + --bg: ${s.bg}; + --face: ${s.face}; + --depth: ${s.depth}; + --shadow: ${s.shadow}; +} + +body { + background: var(--bg); +} + +.logo { + font-family: '${s.font}', sans-serif; + font-size: ${s.fs}vw; + line-height: ${s.lh}; + letter-spacing: ${s.ls}em; + color: var(--face); + transform: rotate(${s.rot}deg) skewX(${s.skew}deg); + white-space: pre-line; + text-shadow: +${lines.join(',\n')}; +}`; +} diff --git a/src/main.js b/src/main.js new file mode 100644 index 0000000..f8de18b --- /dev/null +++ b/src/main.js @@ -0,0 +1,83 @@ +import './style.css'; +import { inlineTextShadow, cssOutput } from './logo.js'; + +const $ = (id) => document.getElementById(id); +const logo = $('logo'); +const cssout = $('cssout'); + +function readState() { + return { + text: $('text').value || ' ', + font: $('font').value, + fs: +$('fs').value, + lh: +$('lh').value, + ls: +$('ls').value, + bg: $('c-bg').value, + face: $('c-face').value, + depth: $('c-depth').value, + shadow: $('c-shadow').value, + angle: +$('angle').value, + shadowLen: +$('shadow').value, + depthLen: +$('depth').value, + contourLen: +$('contour').value, + rot: +$('rot').value, + skew: +$('skew').value, + }; +} + +function render() { + const s = readState(); + + $('v-fs').textContent = s.fs; + $('v-lh').textContent = s.lh.toFixed(2); + $('v-ls').textContent = s.ls.toFixed(3); + $('v-angle').textContent = s.angle; + $('v-shadow').textContent = s.shadowLen; + $('v-depth').textContent = s.depthLen; + $('v-contour').textContent = s.contourLen; + $('v-rot').textContent = s.rot; + $('v-skew').textContent = s.skew; + $('hex-bg').textContent = s.bg; + $('hex-face').textContent = s.face; + $('hex-depth').textContent = s.depth; + $('hex-shadow').textContent = s.shadow; + + logo.textContent = s.text; + logo.style.textShadow = inlineTextShadow(s); + logo.style.transform = `rotate(${s.rot}deg) skewX(${s.skew}deg)`; + logo.style.fontFamily = `'${s.font}', 'Bebas Neue', Impact, sans-serif`; + logo.style.color = s.face; + logo.style.fontSize = s.fs + 'vw'; + logo.style.lineHeight = s.lh; + logo.style.letterSpacing = s.ls + 'em'; + document.body.style.background = s.bg; + + cssout.textContent = cssOutput(s); +} + +document + .querySelectorAll('#logoForm input, #logoForm select, #logoForm textarea') + .forEach((el) => el.addEventListener('input', render)); + +$('copyBtn').addEventListener('click', async () => { + try { + await navigator.clipboard.writeText(cssout.textContent); + const btn = $('copyBtn'); + btn.textContent = 'Kopiert!'; + btn.classList.add('copied'); + setTimeout(() => { + btn.textContent = 'CSS kopieren'; + btn.classList.remove('copied'); + }, 1500); + } catch { + alert('Kopieren fehlgeschlagen — bitte manuell aus dem Code-Feld kopieren.'); + } +}); + +// Native