Basic harmonica tabs image creator
This commit is contained in:
42
src/App.css
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42
src/App.css
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#root {
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max-width: 1280px;
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margin: 0 auto;
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padding: 2rem;
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text-align: center;
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}
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.logo {
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height: 6em;
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padding: 1.5em;
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will-change: filter;
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transition: filter 300ms;
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}
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.logo:hover {
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filter: drop-shadow(0 0 2em #646cffaa);
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}
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.logo.react:hover {
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filter: drop-shadow(0 0 2em #61dafbaa);
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}
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@keyframes logo-spin {
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from {
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transform: rotate(0deg);
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}
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to {
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transform: rotate(360deg);
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}
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}
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@media (prefers-reduced-motion: no-preference) {
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a:nth-of-type(2) .logo {
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animation: logo-spin infinite 20s linear;
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}
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}
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.card {
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padding: 2em;
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}
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.read-the-docs {
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color: #888;
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}
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8
src/App.jsx
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8
src/App.jsx
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import React from "react";
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import HarmonicaTabGenerator from "./components/HarmonicaTabGenerator";
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function App() {
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return <HarmonicaTabGenerator />;
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}
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export default App;
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1
src/assets/react.svg
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1
src/assets/react.svg
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@@ -0,0 +1 @@
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<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" class="iconify iconify--logos" width="35.93" height="32" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 228"><path fill="#00D8FF" d="M210.483 73.824a171.49 171.49 0 0 0-8.24-2.597c.465-1.9.893-3.777 1.273-5.621c6.238-30.281 2.16-54.676-11.769-62.708c-13.355-7.7-35.196.329-57.254 19.526a171.23 171.23 0 0 0-6.375 5.848a155.866 155.866 0 0 0-4.241-3.917C100.759 3.829 77.587-4.822 63.673 3.233C50.33 10.957 46.379 33.89 51.995 62.588a170.974 170.974 0 0 0 1.892 8.48c-3.28.932-6.445 1.924-9.474 2.98C17.309 83.498 0 98.307 0 113.668c0 15.865 18.582 31.778 46.812 41.427a145.52 145.52 0 0 0 6.921 2.165a167.467 167.467 0 0 0-2.01 9.138c-5.354 28.2-1.173 50.591 12.134 58.266c13.744 7.926 36.812-.22 59.273-19.855a145.567 145.567 0 0 0 5.342-4.923a168.064 168.064 0 0 0 6.92 6.314c21.758 18.722 43.246 26.282 56.54 18.586c13.731-7.949 18.194-32.003 12.4-61.268a145.016 145.016 0 0 0-1.535-6.842c1.62-.48 3.21-.974 4.76-1.488c29.348-9.723 48.443-25.443 48.443-41.52c0-15.417-17.868-30.326-45.517-39.844Zm-6.365 70.984c-1.4.463-2.836.91-4.3 1.345c-3.24-10.257-7.612-21.163-12.963-32.432c5.106-11 9.31-21.767 12.459-31.957c2.619.758 5.16 1.557 7.61 2.4c23.69 8.156 38.14 20.213 38.14 29.504c0 9.896-15.606 22.743-40.946 31.14Zm-10.514 20.834c2.562 12.94 2.927 24.64 1.23 33.787c-1.524 8.219-4.59 13.698-8.382 15.893c-8.067 4.67-25.32-1.4-43.927-17.412a156.726 156.726 0 0 1-6.437-5.87c7.214-7.889 14.423-17.06 21.459-27.246c12.376-1.098 24.068-2.894 34.671-5.345a134.17 134.17 0 0 1 1.386 6.193ZM87.276 214.515c-7.882 2.783-14.16 2.863-17.955.675c-8.075-4.657-11.432-22.636-6.853-46.752a156.923 156.923 0 0 1 1.869-8.499c10.486 2.32 22.093 3.988 34.498 4.994c7.084 9.967 14.501 19.128 21.976 27.15a134.668 134.668 0 0 1-4.877 4.492c-9.933 8.682-19.886 14.842-28.658 17.94ZM50.35 144.747c-12.483-4.267-22.792-9.812-29.858-15.863c-6.35-5.437-9.555-10.836-9.555-15.216c0-9.322 13.897-21.212 37.076-29.293c2.813-.98 5.757-1.905 8.812-2.773c3.204 10.42 7.406 21.315 12.477 32.332c-5.137 11.18-9.399 22.249-12.634 32.792a134.718 134.718 0 0 1-6.318-1.979Zm12.378-84.26c-4.811-24.587-1.616-43.134 6.425-47.789c8.564-4.958 27.502 2.111 47.463 19.835a144.318 144.318 0 0 1 3.841 3.545c-7.438 7.987-14.787 17.08-21.808 26.988c-12.04 1.116-23.565 2.908-34.161 5.309a160.342 160.342 0 0 1-1.76-7.887Zm110.427 27.268a347.8 347.8 0 0 0-7.785-12.803c8.168 1.033 15.994 2.404 23.343 4.08c-2.206 7.072-4.956 14.465-8.193 22.045a381.151 381.151 0 0 0-7.365-13.322Zm-45.032-43.861c5.044 5.465 10.096 11.566 15.065 18.186a322.04 322.04 0 0 0-30.257-.006c4.974-6.559 10.069-12.652 15.192-18.18ZM82.802 87.83a323.167 323.167 0 0 0-7.227 13.238c-3.184-7.553-5.909-14.98-8.134-22.152c7.304-1.634 15.093-2.97 23.209-3.984a321.524 321.524 0 0 0-7.848 12.897Zm8.081 65.352c-8.385-.936-16.291-2.203-23.593-3.793c2.26-7.3 5.045-14.885 8.298-22.6a321.187 321.187 0 0 0 7.257 13.246c2.594 4.48 5.28 8.868 8.038 13.147Zm37.542 31.03c-5.184-5.592-10.354-11.779-15.403-18.433c4.902.192 9.899.29 14.978.29c5.218 0 10.376-.117 15.453-.343c-4.985 6.774-10.018 12.97-15.028 18.486Zm52.198-57.817c3.422 7.8 6.306 15.345 8.596 22.52c-7.422 1.694-15.436 3.058-23.88 4.071a382.417 382.417 0 0 0 7.859-13.026a347.403 347.403 0 0 0 7.425-13.565Zm-16.898 8.101a358.557 358.557 0 0 1-12.281 19.815a329.4 329.4 0 0 1-23.444.823c-7.967 0-15.716-.248-23.178-.732a310.202 310.202 0 0 1-12.513-19.846h.001a307.41 307.41 0 0 1-10.923-20.627a310.278 310.278 0 0 1 10.89-20.637l-.001.001a307.318 307.318 0 0 1 12.413-19.761c7.613-.576 15.42-.876 23.31-.876H128c7.926 0 15.743.303 23.354.883a329.357 329.357 0 0 1 12.335 19.695a358.489 358.489 0 0 1 11.036 20.54a329.472 329.472 0 0 1-11 20.722Zm22.56-122.124c8.572 4.944 11.906 24.881 6.52 51.026c-.344 1.668-.73 3.367-1.15 5.09c-10.622-2.452-22.155-4.275-34.23-5.408c-7.034-10.017-14.323-19.124-21.64-27.008a160.789 160.789 0 0 1 5.888-5.4c18.9-16.447 36.564-22.941 44.612-18.3ZM128 90.808c12.625 0 22.86 10.235 22.86 22.86s-10.235 22.86-22.86 22.86s-22.86-10.235-22.86-22.86s10.235-22.86 22.86-22.86Z"></path></svg>
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After Width: | Height: | Size: 4.0 KiB |
287
src/components/HarmonicaTabGenerator.jsx
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287
src/components/HarmonicaTabGenerator.jsx
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@@ -0,0 +1,287 @@
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import React, { useState, useRef } from "react";
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const DEMO_TABS = `
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4 6 -5 5 -4 4 3
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6 7 -6 6 -6 6 5
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4 4 4 5 5 5 5 5 -5 5 4
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`;
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const MAX_LINES_PER_COLUMN = 10;
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const HarmonicaTabGenerator = () => {
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const [input, setInput] = useState(DEMO_TABS);
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const svgRef = useRef(null);
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// Parse input and add + signs to positive numbers
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const parseInput = (text) => {
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const lines = text.split("\n");
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return lines.map((line) => {
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// Check if line contains tab notation (numbers with optional minus signs and spaces)
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const isTabLine =
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/^[\s\d-]+$/.test(line.trim()) && line.trim().length > 0;
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let processedContent = line;
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// If it's a tab line, add + signs to positive numbers
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if (isTabLine) {
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processedContent = line.replace(
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/(\s|^)(\d+)/g,
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(match, space, number) => {
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return space + "+" + number;
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},
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);
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}
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return {
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content: processedContent,
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isTab: isTabLine,
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};
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});
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};
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// Calculate layout (columns based on max 10 lines per column)
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const calculateLayout = (parsedLines) => {
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const tabLines = parsedLines.filter((l) => l.isTab);
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const numColumns = Math.ceil(tabLines.length / MAX_LINES_PER_COLUMN);
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const columns = [];
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let currentIndex = 0;
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for (let col = 0; col < numColumns; col++) {
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const columnLines = [];
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let tabCount = 0;
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while (
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currentIndex < parsedLines.length &&
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tabCount < MAX_LINES_PER_COLUMN
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) {
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const line = parsedLines[currentIndex];
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columnLines.push(line);
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if (line.isTab) {
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tabCount++;
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}
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currentIndex++;
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}
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columns.push(columnLines);
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}
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return columns;
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};
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const parsedLines = parseInput(input);
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const columns = calculateLayout(parsedLines);
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// SVG dimensions and styling
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const lineHeight = 40;
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const fontSize = 28;
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const annotationFontSize = 12;
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const columnWidth = 400;
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const padding = 40;
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const columnGap = 60;
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const maxLinesInAnyColumn = Math.max(
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...columns.map((col) => {
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return col.reduce((sum, line) => {
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return sum + (line.isTab ? 1 : 0.5);
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}, 0);
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}),
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1,
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);
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const svgWidth =
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columns.length * columnWidth +
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(columns.length - 1) * columnGap +
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padding * 2;
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const svgHeight = maxLinesInAnyColumn * lineHeight + padding * 2;
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// Export as PNG
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const exportAsPNG = () => {
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const svgElement = svgRef.current;
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const svgData = new XMLSerializer().serializeToString(svgElement);
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const canvas = document.createElement("canvas");
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const ctx = canvas.getContext("2d");
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// Set canvas size (2x for better quality)
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canvas.width = svgWidth * 2;
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canvas.height = svgHeight * 2;
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const img = new Image();
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const svgBlob = new Blob([svgData], {
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type: "image/svg+xml;charset=utf-8",
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});
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const url = URL.createObjectURL(svgBlob);
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img.onload = () => {
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ctx.scale(2, 2);
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ctx.drawImage(img, 0, 0);
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URL.revokeObjectURL(url);
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canvas.toBlob((blob) => {
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const link = document.createElement("a");
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link.download = "harmonica-tabs.png";
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link.href = URL.createObjectURL(blob);
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link.click();
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});
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};
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img.src = url;
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};
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// Export as SVG
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const exportAsSVG = () => {
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const svgElement = svgRef.current;
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const svgData = new XMLSerializer().serializeToString(svgElement);
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const blob = new Blob([svgData], { type: "image/svg+xml;charset=utf-8" });
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const link = document.createElement("a");
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link.download = "harmonica-tabs.svg";
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link.href = URL.createObjectURL(blob);
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link.click();
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};
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return (
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<div className="gradient-bg">
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<div className="container">
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<h1 className="title">Harmonica Tab Generator</h1>
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<p className="subtitle">
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Create beautiful, readable images of your harmonica tabs
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</p>
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{/* Input Section */}
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<div className="card">
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<h2 className="section-title">Input Your Tabs</h2>
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<textarea
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value={input}
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onChange={(e) => setInput(e.target.value)}
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className="textarea"
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placeholder="Enter your harmonica tabs here...
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Example:
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4 6 -5 5 -4 4 3
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6 7 -6 6 -6 6 5"
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/>
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<div className="button-group">
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<button onClick={exportAsPNG} className="button button-primary">
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📥 Download PNG
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</button>
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<button onClick={exportAsSVG} className="button button-secondary">
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📥 Download SVG
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</button>
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</div>
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<p className="tip">
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💡 Tip: Positive numbers will automatically get a + sign. Add text
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for annotations - they'll appear smaller.
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</p>
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</div>
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{/* Preview Section */}
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<div className="card">
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<h2 className="section-title">Preview</h2>
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<div className="preview-container">
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<svg
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ref={svgRef}
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width={svgWidth}
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height={svgHeight}
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xmlns="http://www.w3.org/2000/svg"
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style={{ background: "#ffffff", display: "block" }}
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>
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{/* Background */}
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<rect width={svgWidth} height={svgHeight} fill="#ffffff" />
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{/* Render columns */}
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{columns.map((column, colIndex) => {
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let yOffset = padding;
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const xOffset = padding + colIndex * (columnWidth + columnGap);
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return (
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<g key={colIndex}>
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{column.map((line, lineIndex) => {
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const currentY = yOffset;
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if (line.isTab) {
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// Render tab line with monospace font
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yOffset += lineHeight;
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return (
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<text
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key={lineIndex}
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x={xOffset}
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y={currentY}
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fontFamily="'Courier New', monospace"
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fontSize={fontSize}
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fontWeight="600"
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fill="#1f2937"
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letterSpacing="2"
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>
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{line.content}
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</text>
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);
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} else if (line.content.trim()) {
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// Render annotation with smaller font
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yOffset += lineHeight * 0.6;
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return (
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<text
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key={lineIndex}
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x={xOffset}
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y={currentY}
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fontFamily="Arial, sans-serif"
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fontSize={annotationFontSize}
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fontStyle="italic"
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fill="#6b7280"
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>
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{line.content}
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</text>
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);
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}
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return null;
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})}
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</g>
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);
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})}
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</svg>
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</div>
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</div>
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{/* Instructions */}
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<div className="card">
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<h2 className="section-title">How to Use</h2>
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<ul className="instructions">
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<li className="instruction-item">
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<span className="instruction-number">1.</span>
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<span>
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Enter your harmonica tabs in the input field (numbers with
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spaces)
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</span>
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</li>
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<li className="instruction-item">
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<span className="instruction-number">2.</span>
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<span>
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Positive numbers automatically get a + sign, negative numbers
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keep the - sign
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</span>
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</li>
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<li className="instruction-item">
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<span className="instruction-number">3.</span>
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<span>
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Add text annotations if needed - they'll appear smaller and
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italicized
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</span>
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</li>
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<li className="instruction-item">
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<span className="instruction-number">4.</span>
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<span>
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Preview updates automatically - tabs are split into columns (max
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10 lines per column)
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</span>
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</li>
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<li className="instruction-item">
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<span className="instruction-number">5.</span>
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<span>Download as PNG for sharing or SVG for editing</span>
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</li>
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</ul>
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</div>
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</div>
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</div>
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);
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};
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export default HarmonicaTabGenerator;
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158
src/index.css
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158
src/index.css
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* {
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margin: 0;
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padding: 0;
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box-sizing: border-box;
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}
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body {
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font-family:
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-apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Oxygen", "Ubuntu",
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"Cantarell", "Fira Sans", "Droid Sans", "Helvetica Neue", sans-serif;
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-webkit-font-smoothing: antialiased;
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-moz-osx-font-smoothing: grayscale;
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}
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code {
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font-family: "Courier New", monospace;
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}
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/* Utility Classes */
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.container {
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max-width: 1200px;
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margin: 0 auto;
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padding: 2rem;
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}
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.gradient-bg {
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background: linear-gradient(135deg, #eff6ff 0%, #e0e7ff 100%);
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min-height: 100vh;
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}
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.card {
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background: white;
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border-radius: 0.5rem;
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box-shadow:
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0 4px 6px -1px rgba(0, 0, 0, 0.1),
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0 2px 4px -1px rgba(0, 0, 0, 0.06);
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padding: 1.5rem;
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margin-bottom: 2rem;
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||||
}
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||||
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.title {
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font-size: 2.25rem;
|
||||
font-weight: 700;
|
||||
color: #1f2937;
|
||||
margin-bottom: 0.5rem;
|
||||
}
|
||||
|
||||
.subtitle {
|
||||
font-size: 1rem;
|
||||
color: #6b7280;
|
||||
margin-bottom: 2rem;
|
||||
}
|
||||
|
||||
.section-title {
|
||||
font-size: 1.25rem;
|
||||
font-weight: 600;
|
||||
color: #374151;
|
||||
margin-bottom: 1rem;
|
||||
}
|
||||
|
||||
.textarea {
|
||||
width: 100%;
|
||||
min-height: 250px;
|
||||
padding: 1rem;
|
||||
border: 2px solid #d1d5db;
|
||||
border-radius: 0.5rem;
|
||||
font-family: "Courier New", monospace;
|
||||
font-size: 0.875rem;
|
||||
resize: vertical;
|
||||
transition: border-color 0.2s;
|
||||
}
|
||||
|
||||
.textarea:focus {
|
||||
outline: none;
|
||||
border-color: #6366f1;
|
||||
}
|
||||
|
||||
.button-group {
|
||||
display: flex;
|
||||
gap: 0.75rem;
|
||||
margin-top: 1rem;
|
||||
}
|
||||
|
||||
.button {
|
||||
flex: 1;
|
||||
padding: 0.75rem 1.5rem;
|
||||
font-weight: 600;
|
||||
border: none;
|
||||
border-radius: 0.5rem;
|
||||
cursor: pointer;
|
||||
transition: all 0.2s;
|
||||
box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
|
||||
}
|
||||
|
||||
.button-primary {
|
||||
background-color: #6366f1;
|
||||
color: white;
|
||||
}
|
||||
|
||||
.button-primary:hover {
|
||||
background-color: #4f46e5;
|
||||
}
|
||||
|
||||
.button-secondary {
|
||||
background-color: #9333ea;
|
||||
color: white;
|
||||
}
|
||||
|
||||
.button-secondary:hover {
|
||||
background-color: #7e22ce;
|
||||
}
|
||||
|
||||
.preview-container {
|
||||
border: 2px solid #e5e7eb;
|
||||
border-radius: 0.5rem;
|
||||
background-color: #f9fafb;
|
||||
padding: 1rem;
|
||||
overflow: auto;
|
||||
max-height: 600px;
|
||||
}
|
||||
|
||||
.tip {
|
||||
margin-top: 1rem;
|
||||
font-size: 0.875rem;
|
||||
color: #6b7280;
|
||||
}
|
||||
|
||||
.instructions {
|
||||
list-style: none;
|
||||
}
|
||||
|
||||
.instruction-item {
|
||||
display: flex;
|
||||
align-items: flex-start;
|
||||
margin-bottom: 0.75rem;
|
||||
color: #4b5563;
|
||||
}
|
||||
|
||||
.instruction-number {
|
||||
color: #6366f1;
|
||||
font-weight: 700;
|
||||
margin-right: 0.5rem;
|
||||
flex-shrink: 0;
|
||||
}
|
||||
|
||||
@media (max-width: 768px) {
|
||||
.container {
|
||||
padding: 1rem;
|
||||
}
|
||||
|
||||
.title {
|
||||
font-size: 1.75rem;
|
||||
}
|
||||
|
||||
.button-group {
|
||||
flex-direction: column;
|
||||
}
|
||||
}
|
||||
17
src/index.html
Normal file
17
src/index.html
Normal file
@@ -0,0 +1,17 @@
|
||||
<!DOCTYPE html>
|
||||
<html lang="en">
|
||||
<head>
|
||||
<meta charset="utf-8" />
|
||||
<meta name="viewport" content="width=device-width, initial-scale=1" />
|
||||
<meta name="theme-color" content="#000000" />
|
||||
<meta
|
||||
name="description"
|
||||
content="Generate beautiful harmonica tab images"
|
||||
/>
|
||||
<title>Harmonica Tab Generator</title>
|
||||
</head>
|
||||
<body>
|
||||
<noscript>You need to enable JavaScript to run this app.</noscript>
|
||||
<div id="root"></div>
|
||||
</body>
|
||||
</html>
|
||||
11
src/index.js
Normal file
11
src/index.js
Normal file
@@ -0,0 +1,11 @@
|
||||
import React from "react";
|
||||
import ReactDOM from "react-dom/client";
|
||||
import "./index.css";
|
||||
import App from "./App";
|
||||
|
||||
const root = ReactDOM.createRoot(document.getElementById("root"));
|
||||
root.render(
|
||||
<React.StrictMode>
|
||||
<App />
|
||||
</React.StrictMode>,
|
||||
);
|
||||
10
src/main.jsx
Normal file
10
src/main.jsx
Normal file
@@ -0,0 +1,10 @@
|
||||
import { StrictMode } from "react";
|
||||
import { createRoot } from "react-dom/client";
|
||||
import "./index.css";
|
||||
import App from "./App.jsx";
|
||||
|
||||
createRoot(document.getElementById("root")).render(
|
||||
<StrictMode>
|
||||
<App />
|
||||
</StrictMode>,
|
||||
);
|
||||
436
src/standalone.html
Normal file
436
src/standalone.html
Normal file
@@ -0,0 +1,436 @@
|
||||
<!DOCTYPE html>
|
||||
<html lang="en">
|
||||
<head>
|
||||
<meta charset="UTF-8">
|
||||
<meta name="viewport" content="width=device-width, initial-scale=1.0">
|
||||
<title>Harmonica Tab Generator</title>
|
||||
|
||||
<!-- React and ReactDOM from CDN -->
|
||||
<script crossorigin src="https://unpkg.com/react@18/umd/react.production.min.js"></script>
|
||||
<script crossorigin src="https://unpkg.com/react-dom@18/umd/react-dom.production.min.js"></script>
|
||||
|
||||
<!-- Babel Standalone for JSX -->
|
||||
<script src="https://unpkg.com/@babel/standalone/babel.min.js"></script>
|
||||
|
||||
<style>
|
||||
* {
|
||||
margin: 0;
|
||||
padding: 0;
|
||||
box-sizing: border-box;
|
||||
}
|
||||
|
||||
body {
|
||||
font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
|
||||
'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
|
||||
sans-serif;
|
||||
-webkit-font-smoothing: antialiased;
|
||||
-moz-osx-font-smoothing: grayscale;
|
||||
}
|
||||
|
||||
.gradient-bg {
|
||||
background: linear-gradient(135deg, #eff6ff 0%, #e0e7ff 100%);
|
||||
min-height: 100vh;
|
||||
}
|
||||
|
||||
.container {
|
||||
max-width: 1200px;
|
||||
margin: 0 auto;
|
||||
padding: 2rem;
|
||||
}
|
||||
|
||||
.card {
|
||||
background: white;
|
||||
border-radius: 0.5rem;
|
||||
box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
|
||||
padding: 1.5rem;
|
||||
margin-bottom: 2rem;
|
||||
}
|
||||
|
||||
.title {
|
||||
font-size: 2.25rem;
|
||||
font-weight: 700;
|
||||
color: #1f2937;
|
||||
margin-bottom: 0.5rem;
|
||||
}
|
||||
|
||||
.subtitle {
|
||||
font-size: 1rem;
|
||||
color: #6b7280;
|
||||
margin-bottom: 2rem;
|
||||
}
|
||||
|
||||
.section-title {
|
||||
font-size: 1.25rem;
|
||||
font-weight: 600;
|
||||
color: #374151;
|
||||
margin-bottom: 1rem;
|
||||
}
|
||||
|
||||
.textarea {
|
||||
width: 100%;
|
||||
min-height: 250px;
|
||||
padding: 1rem;
|
||||
border: 2px solid #d1d5db;
|
||||
border-radius: 0.5rem;
|
||||
font-family: 'Courier New', monospace;
|
||||
font-size: 0.875rem;
|
||||
resize: vertical;
|
||||
transition: border-color 0.2s;
|
||||
}
|
||||
|
||||
.textarea:focus {
|
||||
outline: none;
|
||||
border-color: #6366f1;
|
||||
}
|
||||
|
||||
.button-group {
|
||||
display: flex;
|
||||
gap: 0.75rem;
|
||||
margin-top: 1rem;
|
||||
}
|
||||
|
||||
.button {
|
||||
flex: 1;
|
||||
padding: 0.75rem 1.5rem;
|
||||
font-weight: 600;
|
||||
border: none;
|
||||
border-radius: 0.5rem;
|
||||
cursor: pointer;
|
||||
transition: all 0.2s;
|
||||
box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
|
||||
}
|
||||
|
||||
.button-primary {
|
||||
background-color: #6366f1;
|
||||
color: white;
|
||||
}
|
||||
|
||||
.button-primary:hover {
|
||||
background-color: #4f46e5;
|
||||
}
|
||||
|
||||
.button-secondary {
|
||||
background-color: #9333ea;
|
||||
color: white;
|
||||
}
|
||||
|
||||
.button-secondary:hover {
|
||||
background-color: #7e22ce;
|
||||
}
|
||||
|
||||
.preview-container {
|
||||
border: 2px solid #e5e7eb;
|
||||
border-radius: 0.5rem;
|
||||
background-color: #f9fafb;
|
||||
padding: 1rem;
|
||||
overflow: auto;
|
||||
max-height: 600px;
|
||||
}
|
||||
|
||||
.tip {
|
||||
margin-top: 1rem;
|
||||
font-size: 0.875rem;
|
||||
color: #6b7280;
|
||||
}
|
||||
|
||||
.instructions {
|
||||
list-style: none;
|
||||
}
|
||||
|
||||
.instruction-item {
|
||||
display: flex;
|
||||
align-items: flex-start;
|
||||
margin-bottom: 0.75rem;
|
||||
color: #4b5563;
|
||||
}
|
||||
|
||||
.instruction-number {
|
||||
color: #6366f1;
|
||||
font-weight: 700;
|
||||
margin-right: 0.5rem;
|
||||
flex-shrink: 0;
|
||||
}
|
||||
|
||||
@media (max-width: 768px) {
|
||||
.container {
|
||||
padding: 1rem;
|
||||
}
|
||||
|
||||
.title {
|
||||
font-size: 1.75rem;
|
||||
}
|
||||
|
||||
.button-group {
|
||||
flex-direction: column;
|
||||
}
|
||||
}
|
||||
</style>
|
||||
</head>
|
||||
<body>
|
||||
<div id="root"></div>
|
||||
|
||||
<script type="text/babel">
|
||||
const { useState, useRef } = React;
|
||||
|
||||
const HarmonicaTabGenerator = () => {
|
||||
const [input, setInput] = useState(` 4 6 -5 5 -4 4 3
|
||||
6 7 -6 6 -6 6 5
|
||||
4 4 4 5 5 5 5 5 -5 5 4`);
|
||||
const svgRef = useRef(null);
|
||||
|
||||
// Parse input and add + signs to positive numbers
|
||||
const parseInput = (text) => {
|
||||
const lines = text.split('\n');
|
||||
return lines.map(line => {
|
||||
// Check if line contains tab notation (numbers with optional minus signs and spaces)
|
||||
const isTabLine = /^[\s\d\-]+$/.test(line.trim()) && line.trim().length > 0;
|
||||
|
||||
let processedContent = line;
|
||||
|
||||
// If it's a tab line, add + signs to positive numbers
|
||||
if (isTabLine) {
|
||||
processedContent = line.replace(/(\s|^)(\d+)/g, (match, space, number) => {
|
||||
return space + '+' + number;
|
||||
});
|
||||
}
|
||||
|
||||
return {
|
||||
content: processedContent,
|
||||
isTab: isTabLine
|
||||
};
|
||||
});
|
||||
};
|
||||
|
||||
// Calculate layout (columns based on max 10 lines per column)
|
||||
const calculateLayout = (parsedLines) => {
|
||||
const tabLines = parsedLines.filter(l => l.isTab);
|
||||
const maxLinesPerColumn = 10;
|
||||
const numColumns = Math.ceil(tabLines.length / maxLinesPerColumn);
|
||||
|
||||
const columns = [];
|
||||
let currentIndex = 0;
|
||||
|
||||
for (let col = 0; col < numColumns; col++) {
|
||||
const columnLines = [];
|
||||
let tabCount = 0;
|
||||
|
||||
while (currentIndex < parsedLines.length && tabCount < maxLinesPerColumn) {
|
||||
const line = parsedLines[currentIndex];
|
||||
columnLines.push(line);
|
||||
|
||||
if (line.isTab) {
|
||||
tabCount++;
|
||||
}
|
||||
currentIndex++;
|
||||
}
|
||||
|
||||
columns.push(columnLines);
|
||||
}
|
||||
|
||||
return columns;
|
||||
};
|
||||
|
||||
const parsedLines = parseInput(input);
|
||||
const columns = calculateLayout(parsedLines);
|
||||
|
||||
// SVG dimensions and styling
|
||||
const lineHeight = 40;
|
||||
const fontSize = 28;
|
||||
const annotationFontSize = 12;
|
||||
const columnWidth = 400;
|
||||
const padding = 40;
|
||||
const columnGap = 60;
|
||||
|
||||
const maxLinesInAnyColumn = Math.max(...columns.map(col => {
|
||||
return col.reduce((sum, line) => {
|
||||
return sum + (line.isTab ? 1 : 0.5);
|
||||
}, 0);
|
||||
}), 1);
|
||||
|
||||
const svgWidth = columns.length * columnWidth + (columns.length - 1) * columnGap + padding * 2;
|
||||
const svgHeight = maxLinesInAnyColumn * lineHeight + padding * 2;
|
||||
|
||||
// Export as PNG
|
||||
const exportAsPNG = () => {
|
||||
const svgElement = svgRef.current;
|
||||
const svgData = new XMLSerializer().serializeToString(svgElement);
|
||||
const canvas = document.createElement('canvas');
|
||||
const ctx = canvas.getContext('2d');
|
||||
|
||||
// Set canvas size (2x for better quality)
|
||||
canvas.width = svgWidth * 2;
|
||||
canvas.height = svgHeight * 2;
|
||||
|
||||
const img = new Image();
|
||||
const svgBlob = new Blob([svgData], { type: 'image/svg+xml;charset=utf-8' });
|
||||
const url = URL.createObjectURL(svgBlob);
|
||||
|
||||
img.onload = () => {
|
||||
ctx.scale(2, 2);
|
||||
ctx.drawImage(img, 0, 0);
|
||||
URL.revokeObjectURL(url);
|
||||
|
||||
canvas.toBlob((blob) => {
|
||||
const link = document.createElement('a');
|
||||
link.download = 'harmonica-tabs.png';
|
||||
link.href = URL.createObjectURL(blob);
|
||||
link.click();
|
||||
});
|
||||
};
|
||||
|
||||
img.src = url;
|
||||
};
|
||||
|
||||
// Export as SVG
|
||||
const exportAsSVG = () => {
|
||||
const svgElement = svgRef.current;
|
||||
const svgData = new XMLSerializer().serializeToString(svgElement);
|
||||
const blob = new Blob([svgData], { type: 'image/svg+xml;charset=utf-8' });
|
||||
const link = document.createElement('a');
|
||||
link.download = 'harmonica-tabs.svg';
|
||||
link.href = URL.createObjectURL(blob);
|
||||
link.click();
|
||||
};
|
||||
|
||||
return (
|
||||
<div className="gradient-bg">
|
||||
<div className="container">
|
||||
<h1 className="title">Harmonica Tab Generator</h1>
|
||||
<p className="subtitle">Create beautiful, readable images of your harmonica tabs</p>
|
||||
|
||||
{/* Input Section */}
|
||||
<div className="card">
|
||||
<h2 className="section-title">Input Your Tabs</h2>
|
||||
<textarea
|
||||
value={input}
|
||||
onChange={(e) => setInput(e.target.value)}
|
||||
className="textarea"
|
||||
placeholder="Enter your harmonica tabs here...
|
||||
|
||||
Example:
|
||||
4 6 -5 5 -4 4 3
|
||||
6 7 -6 6 -6 6 5"
|
||||
/>
|
||||
<div className="button-group">
|
||||
<button
|
||||
onClick={exportAsPNG}
|
||||
className="button button-primary"
|
||||
>
|
||||
📥 Download PNG
|
||||
</button>
|
||||
<button
|
||||
onClick={exportAsSVG}
|
||||
className="button button-secondary"
|
||||
>
|
||||
📥 Download SVG
|
||||
</button>
|
||||
</div>
|
||||
<p className="tip">
|
||||
💡 Tip: Positive numbers will automatically get a + sign. Add text for annotations - they'll appear smaller.
|
||||
</p>
|
||||
</div>
|
||||
|
||||
{/* Preview Section */}
|
||||
<div className="card">
|
||||
<h2 className="section-title">Preview</h2>
|
||||
<div className="preview-container">
|
||||
<svg
|
||||
ref={svgRef}
|
||||
width={svgWidth}
|
||||
height={svgHeight}
|
||||
xmlns="http://www.w3.org/2000/svg"
|
||||
style={{ background: '#ffffff', display: 'block' }}
|
||||
>
|
||||
{/* Background */}
|
||||
<rect width={svgWidth} height={svgHeight} fill="#ffffff" />
|
||||
|
||||
{/* Render columns */}
|
||||
{columns.map((column, colIndex) => {
|
||||
let yOffset = padding;
|
||||
const xOffset = padding + colIndex * (columnWidth + columnGap);
|
||||
|
||||
return (
|
||||
<g key={colIndex}>
|
||||
{column.map((line, lineIndex) => {
|
||||
const currentY = yOffset;
|
||||
|
||||
if (line.isTab) {
|
||||
// Render tab line with monospace font
|
||||
yOffset += lineHeight;
|
||||
return (
|
||||
<text
|
||||
key={lineIndex}
|
||||
x={xOffset}
|
||||
y={currentY}
|
||||
fontFamily="'Courier New', monospace"
|
||||
fontSize={fontSize}
|
||||
fontWeight="600"
|
||||
fill="#1f2937"
|
||||
letterSpacing="2"
|
||||
>
|
||||
{line.content}
|
||||
</text>
|
||||
);
|
||||
} else if (line.content.trim()) {
|
||||
// Render annotation with smaller font
|
||||
yOffset += lineHeight * 0.6;
|
||||
return (
|
||||
<text
|
||||
key={lineIndex}
|
||||
x={xOffset}
|
||||
y={currentY}
|
||||
fontFamily="Arial, sans-serif"
|
||||
fontSize={annotationFontSize}
|
||||
fontStyle="italic"
|
||||
fill="#6b7280"
|
||||
>
|
||||
{line.content}
|
||||
</text>
|
||||
);
|
||||
}
|
||||
return null;
|
||||
})}
|
||||
</g>
|
||||
);
|
||||
})}
|
||||
</svg>
|
||||
</div>
|
||||
</div>
|
||||
|
||||
{/* Instructions */}
|
||||
<div className="card">
|
||||
<h2 className="section-title">How to Use</h2>
|
||||
<ul className="instructions">
|
||||
<li className="instruction-item">
|
||||
<span className="instruction-number">1.</span>
|
||||
<span>Enter your harmonica tabs in the input field (numbers with spaces)</span>
|
||||
</li>
|
||||
<li className="instruction-item">
|
||||
<span className="instruction-number">2.</span>
|
||||
<span>Positive numbers automatically get a + sign, negative numbers keep the - sign</span>
|
||||
</li>
|
||||
<li className="instruction-item">
|
||||
<span className="instruction-number">3.</span>
|
||||
<span>Add text annotations if needed - they'll appear smaller and italicized</span>
|
||||
</li>
|
||||
<li className="instruction-item">
|
||||
<span className="instruction-number">4.</span>
|
||||
<span>Preview updates automatically - tabs are split into columns (max 10 lines per column)</span>
|
||||
</li>
|
||||
<li className="instruction-item">
|
||||
<span className="instruction-number">5.</span>
|
||||
<span>Download as PNG for sharing or SVG for editing</span>
|
||||
</li>
|
||||
</ul>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
);
|
||||
};
|
||||
|
||||
// Render the app
|
||||
const root = ReactDOM.createRoot(document.getElementById('root'));
|
||||
root.render(<HarmonicaTabGenerator />);
|
||||
</script>
|
||||
</body>
|
||||
</html>
|
||||
Reference in New Issue
Block a user