main.js aktualisiert
This commit is contained in:
482
main.js
482
main.js
@@ -1,244 +1,238 @@
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// main.js
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const { app, BrowserWindow } = require('electron');
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const fs = require("fs");
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const path = require("path");
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const chokidar = require("chokidar");
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const axios = require("axios");
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let OUT_DIR; // endgültiger Eingangsordner (wird in app.whenReady gesetzt)
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let IMG_DIR; // Ausgabeordner für latest.png
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let win;
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function createWindow() {
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win = new BrowserWindow({
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width: 1000,
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height: 800,
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webPreferences: { nodeIntegration: true, contextIsolation: false }
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});
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win.loadFile(path.join(__dirname, "index.html"));
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}
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app.whenReady().then(() => {
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// Versuche zuerst C:\ZIR_Output (praktisch für Windows Local Port)
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const preferedRoot = "C:\\ZIR_Output";
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let dataDir = app.getPath("userData"); // fallback
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try {
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// Versuch: C:\ZIR_Output anlegen (falls möglich)
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if (!fs.existsSync(preferedRoot)) {
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fs.mkdirSync(preferedRoot, { recursive: true });
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}
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OUT_DIR = preferedRoot;
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} catch (e) {
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// Falls es schiefgeht (Rechte), fallback in userData
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OUT_DIR = path.join(dataDir, "ZIR_Input");
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}
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// IMG_DIR im userData (schützt vor Schreibrechten)
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IMG_DIR = path.join(dataDir, "zpl_out");
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// Ordner anlegen, falls nicht existierend
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try { if (!fs.existsSync(OUT_DIR)) fs.mkdirSync(OUT_DIR, { recursive: true }); } catch(e) {}
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try { if (!fs.existsSync(IMG_DIR)) fs.mkdirSync(IMG_DIR, { recursive: true }); } catch(e) {}
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console.log("ZIR Input (Eingangsordner):", OUT_DIR);
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console.log("ZIR Output (PNG-Ordner):", IMG_DIR);
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createWindow();
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const watcher = chokidar.watch(OUT_DIR, { ignoreInitial: true, awaitWriteFinish: {stabilityThreshold: 500, pollInterval: 100} });
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watcher.on("add", file => {
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if (!file.toLowerCase().endsWith(".zpl")) return;
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processFile(file);
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});
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watcher.on("change", file => {
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if (!file.toLowerCase().endsWith(".zpl")) return;
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processFile(file);
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});
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app.on('activate', () => { if (BrowserWindow.getAllWindows().length === 0) createWindow(); });
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});
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app.on('window-all-closed', () => { if (process.platform !== 'darwin') app.quit(); });
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/* --- Helferfunktionen --- */
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function extractZPL(raw) {
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const start = raw.indexOf("^XA");
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const end = raw.lastIndexOf("^XZ");
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if (start >= 0 && end >= 0 && end > start) return raw.slice(start, end + 3);
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if (start >= 0) return raw.slice(start) + (raw.includes("^XZ") ? "" : "^XZ");
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return "^XA\n" + raw + "\n^XZ";
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}
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function cleanControlChars(s) {
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return s.replace(/[\x00-\x1F]/g, '');
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}
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function parsePWLL(zpl) {
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const pwMatch = zpl.match(/\^PW\s*?(\d+)/i) || zpl.match(/\^PW(\d+)/i);
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const llMatch = zpl.match(/\^LL\s*?(\d+)/i) || zpl.match(/\^LL(\d+)/i);
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const pw = pwMatch ? parseInt(pwMatch[1], 10) : null;
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const ll = llMatch ? parseInt(llMatch[1], 10) : null;
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return { pw, ll };
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}
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function parseMaxFO(zpl) {
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let maxX = 0, maxY = 0;
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const re = /\^FO\s*?(\d+)\s*,\s*(\d+)/g;
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let m;
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while ((m = re.exec(zpl)) !== null) {
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const x = parseInt(m[1], 10);
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const y = parseInt(m[2], 10);
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if (!isNaN(x) && x > maxX) maxX = x;
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if (!isNaN(y) && y > maxY) maxY = y;
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}
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return { maxX, maxY };
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}
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function dotsToInches(dots, dpi) {
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if (!dots || !dpi) return null;
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return dots / dpi;
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}
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function fmtInches(v) {
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return (Math.round(v * 100) / 100).toString();
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}
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async function tryLabelaryRender(zpl, printerKey, widthInches, heightInches) {
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const url = `http://api.labelary.com/v1/printers/${printerKey}/labels/${widthInches}x${heightInches}/0/`;
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try {
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const resp = await axios.post(url, zpl, {
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headers: { "Accept": "image/png" },
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responseType: "arraybuffer",
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timeout: 15000
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});
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return { ok: true, buffer: resp.data };
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} catch (err) {
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const status = err.response ? err.response.status : null;
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return { ok: false, status, error: err.message };
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}
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}
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/* --- Größen & Druckeroptionen --- */
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const STANDARD_SIZES = [
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{ w: 8.27, h: 11.69, name: "A4" },
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{ w: 8.5, h: 11, name: "Letter" },
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{ w: 4, h: 6, name: "4x6" },
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{ w: 3, h: 2, name: "3x2" },
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{ w: 4, h: 3, name: "4x3" },
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{ w: 2, h: 6, name: "2x6" },
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{ w: 1, h: 1, name: "1x1" }
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];
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const PRINTER_OPTIONS = [
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{ key: "8dpmm", dpi: 203 },
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{ key: "12dpmm", dpi: 305 }
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];
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/* --- Hauptverarbeitung --- */
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let busy = false;
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async function processFile(filePath) {
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if (busy) {
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setTimeout(() => processFile(filePath), 400);
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return;
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}
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busy = true;
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try {
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console.log("Verarbeite:", filePath);
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let raw = fs.readFileSync(filePath, "utf-8");
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raw = cleanControlChars(raw);
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let zpl = extractZPL(raw);
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const { pw, ll } = parsePWLL(zpl);
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const { maxX, maxY } = parseMaxFO(zpl);
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console.log("Parsed PW/LL:", pw, ll, "maxFO:", maxX, maxY);
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// sizesToTry aufbauen (Priorität: PW/LL -> geschätzte große Formate -> Standardgrößen)
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const sizesToTry = [];
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if (pw && ll) {
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for (const p of PRINTER_OPTIONS) {
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const wIn = dotsToInches(pw, p.dpi);
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const hIn = dotsToInches(ll, p.dpi);
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if (wIn && hIn) {
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sizesToTry.push({ w: wIn, h: hIn, printer: p });
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sizesToTry.push({ w: hIn, h: wIn, printer: p, rotated: true });
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}
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}
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}
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const estDefaultDPI = 203;
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const estWIn = maxX ? dotsToInches(maxX + 100, estDefaultDPI) : null; // margin
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const estHIn = maxY ? dotsToInches(maxY + 100, estDefaultDPI) : null;
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if (estWIn && estHIn) {
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if (estWIn > 6 || estHIn > 8 || estWIn > 8 || estHIn > 6) {
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for (const p of PRINTER_OPTIONS) {
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sizesToTry.push({ w: 8.27, h: 11.69, printer: p, name: "A4" });
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sizesToTry.push({ w: 11.69, h: 8.27, printer: p, name: "A4_rot" });
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sizesToTry.push({ w: 8.5, h: 11, printer: p, name: "Letter" });
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sizesToTry.push({ w: 11, h: 8.5, printer: p, name: "Letter_rot" });
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}
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}
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}
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for (const p of PRINTER_OPTIONS) {
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for (const s of STANDARD_SIZES) {
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const exists = sizesToTry.some(x => Math.abs(x.w - s.w) < 0.01 && Math.abs(x.h - s.h) < 0.01 && x.printer.key === p.key);
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if (!exists) sizesToTry.push({ w: s.w, h: s.h, printer: p, name: s.name || `${s.w}x${s.h}` });
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}
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}
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// Duplikate entfernen & Reihenfolge behalten
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const uniqSizes = [];
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const seen = new Set();
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for (const s of sizesToTry) {
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const key = `${s.printer.key}-${Math.round(s.w*100)}/${Math.round(s.h*100)}`;
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if (!seen.has(key)) { seen.add(key); uniqSizes.push(s); }
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}
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// Versuche rendern
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let renderResult = null;
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for (const s of uniqSizes) {
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const wStr = fmtInches(s.w);
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const hStr = fmtInches(s.h);
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console.log(`Versuche rendern: printer=${s.printer.key} size=${wStr}x${hStr} (${s.name || ""})`);
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renderResult = await tryLabelaryRender(zpl, s.printer.key, wStr, hStr);
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if (renderResult.ok) { console.log(`Erfolg mit ${s.printer.key} ${wStr}x${hStr}`); break; }
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else { console.log(`Fehler (${renderResult.status}) mit ${s.printer.key} ${wStr}x${hStr}`); }
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}
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if (!renderResult || !renderResult.ok) {
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console.error("Alle Render-Versuche fehlgeschlagen, Abbruch.");
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busy = false;
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return;
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}
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// PNG speichern (latest.png) — alte PNGs löschen
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const pngBuffer = renderResult.buffer;
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try {
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fs.readdirSync(IMG_DIR).forEach(f => {
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const fileToDelete = path.join(IMG_DIR, f);
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try { if (fs.lstatSync(fileToDelete).isFile()) fs.unlinkSync(fileToDelete); } catch(e){}
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});
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} catch(e){}
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const outFile = path.join(IMG_DIR, "latest.png");
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fs.writeFileSync(outFile, pngBuffer);
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console.log("PNG erstellt:", outFile);
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// verarbeitete ZPL-Datei löschen (optional)
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try { fs.unlinkSync(filePath); } catch(e){ console.warn("Konnte ZPL nicht löschen:", e.message); }
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// Fenster benachrichtigen
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win.webContents.send("show-png", outFile);
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} catch (err) {
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console.error("Fehler beim Rendern:", err && err.message ? err.message : err);
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} finally {
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busy = false;
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}
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}
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// main.js
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const { app, BrowserWindow } = require('electron');
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const fs = require("fs");
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const path = require("path");
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const chokidar = require("chokidar");
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const axios = require("axios");
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let OUT_DIR; // endgültiger Eingangsordner (wird in app.whenReady gesetzt)
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let IMG_DIR; // Ausgabeordner für PNGs (History)
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let win;
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function createWindow() {
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win = new BrowserWindow({
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width: 1000,
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height: 800,
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webPreferences: { nodeIntegration: true, contextIsolation: false }
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});
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win.loadFile(path.join(__dirname, "index.html"));
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}
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app.whenReady().then(() => {
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// Versuche zuerst C:\ZIR_Output (praktisch für Windows Local Port)
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const preferedRoot = "C:\\ZIR_Output";
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let dataDir = app.getPath("userData"); // fallback
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try {
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// Versuch: C:\ZIR_Output anlegen (falls möglich)
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if (!fs.existsSync(preferedRoot)) {
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fs.mkdirSync(preferedRoot, { recursive: true });
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}
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OUT_DIR = preferedRoot;
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} catch (e) {
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// Falls es schiefgeht (Rechte), fallback in userData
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OUT_DIR = path.join(dataDir, "ZIR_Input");
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}
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// IMG_DIR im userData (schützt vor Schreibrechten)
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IMG_DIR = path.join(dataDir, "zpl_out");
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// Ordner anlegen, falls nicht existierend
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try { if (!fs.existsSync(OUT_DIR)) fs.mkdirSync(OUT_DIR, { recursive: true }); } catch(e) {}
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try { if (!fs.existsSync(IMG_DIR)) fs.mkdirSync(IMG_DIR, { recursive: true }); } catch(e) {}
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console.log("ZIR Input (Eingangsordner):", OUT_DIR);
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console.log("ZIR Output (PNG-Ordner):", IMG_DIR);
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createWindow();
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const watcher = chokidar.watch(OUT_DIR, { ignoreInitial: true, awaitWriteFinish: {stabilityThreshold: 500, pollInterval: 100} });
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watcher.on("add", file => {
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if (!file.toLowerCase().endsWith(".zpl")) return;
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processFile(file);
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});
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watcher.on("change", file => {
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if (!file.toLowerCase().endsWith(".zpl")) return;
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processFile(file);
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});
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app.on('activate', () => { if (BrowserWindow.getAllWindows().length === 0) createWindow(); });
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});
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app.on('window-all-closed', () => { if (process.platform !== 'darwin') app.quit(); });
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/* --- Helferfunktionen --- */
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function extractZPL(raw) {
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const start = raw.indexOf("^XA");
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const end = raw.lastIndexOf("^XZ");
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if (start >= 0 && end >= 0 && end > start) return raw.slice(start, end + 3);
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if (start >= 0) return raw.slice(start) + (raw.includes("^XZ") ? "" : "^XZ");
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return "^XA\n" + raw + "\n^XZ";
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}
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function cleanControlChars(s) {
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return s.replace(/[\x00-\x1F]/g, '');
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}
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function parsePWLL(zpl) {
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const pwMatch = zpl.match(/\^PW\s*?(\d+)/i) || zpl.match(/\^PW(\d+)/i);
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const llMatch = zpl.match(/\^LL\s*?(\d+)/i) || zpl.match(/\^LL(\d+)/i);
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const pw = pwMatch ? parseInt(pwMatch[1], 10) : null;
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const ll = llMatch ? parseInt(llMatch[1], 10) : null;
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return { pw, ll };
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}
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function parseMaxFO(zpl) {
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let maxX = 0, maxY = 0;
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const re = /\^FO\s*?(\d+)\s*,\s*(\d+)/g;
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let m;
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while ((m = re.exec(zpl)) !== null) {
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const x = parseInt(m[1], 10);
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const y = parseInt(m[2], 10);
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if (!isNaN(x) && x > maxX) maxX = x;
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if (!isNaN(y) && y > maxY) maxY = y;
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}
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return { maxX, maxY };
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}
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function dotsToInches(dots, dpi) {
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if (!dots || !dpi) return null;
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return dots / dpi;
|
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}
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function fmtInches(v) {
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return (Math.round(v * 100) / 100).toString();
|
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}
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async function tryLabelaryRender(zpl, printerKey, widthInches, heightInches) {
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const url = `http://api.labelary.com/v1/printers/${printerKey}/labels/${widthInches}x${heightInches}/0/`;
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try {
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const resp = await axios.post(url, zpl, {
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headers: { "Accept": "image/png" },
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responseType: "arraybuffer",
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timeout: 15000
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});
|
||||
return { ok: true, buffer: resp.data };
|
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} catch (err) {
|
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const status = err.response ? err.response.status : null;
|
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return { ok: false, status, error: err.message };
|
||||
}
|
||||
}
|
||||
|
||||
/* --- Größen & Druckeroptionen --- */
|
||||
|
||||
const STANDARD_SIZES = [
|
||||
{ w: 8.27, h: 11.69, name: "A4" },
|
||||
{ w: 8.5, h: 11, name: "Letter" },
|
||||
{ w: 4, h: 6, name: "4x6" },
|
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{ w: 3, h: 2, name: "3x2" },
|
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{ w: 4, h: 3, name: "4x3" },
|
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{ w: 2, h: 6, name: "2x6" },
|
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{ w: 1, h: 1, name: "1x1" }
|
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];
|
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const PRINTER_OPTIONS = [
|
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{ key: "8dpmm", dpi: 203 },
|
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{ key: "12dpmm", dpi: 305 }
|
||||
];
|
||||
|
||||
/* --- Hauptverarbeitung --- */
|
||||
let busy = false;
|
||||
async function processFile(filePath) {
|
||||
if (busy) {
|
||||
setTimeout(() => processFile(filePath), 400);
|
||||
return;
|
||||
}
|
||||
busy = true;
|
||||
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try {
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console.log("Verarbeite:", filePath);
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let raw = fs.readFileSync(filePath, "utf-8");
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raw = cleanControlChars(raw);
|
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let zpl = extractZPL(raw);
|
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||||
const { pw, ll } = parsePWLL(zpl);
|
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const { maxX, maxY } = parseMaxFO(zpl);
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console.log("Parsed PW/LL:", pw, ll, "maxFO:", maxX, maxY);
|
||||
|
||||
// sizesToTry aufbauen (Priorität: PW/LL -> geschätzte große Formate -> Standardgrößen)
|
||||
const sizesToTry = [];
|
||||
|
||||
if (pw && ll) {
|
||||
for (const p of PRINTER_OPTIONS) {
|
||||
const wIn = dotsToInches(pw, p.dpi);
|
||||
const hIn = dotsToInches(ll, p.dpi);
|
||||
if (wIn && hIn) {
|
||||
sizesToTry.push({ w: wIn, h: hIn, printer: p });
|
||||
sizesToTry.push({ w: hIn, h: wIn, printer: p, rotated: true });
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
const estDefaultDPI = 203;
|
||||
const estWIn = maxX ? dotsToInches(maxX + 100, estDefaultDPI) : null; // margin
|
||||
const estHIn = maxY ? dotsToInches(maxY + 100, estDefaultDPI) : null;
|
||||
|
||||
if (estWIn && estHIn) {
|
||||
if (estWIn > 6 || estHIn > 8 || estWIn > 8 || estHIn > 6) {
|
||||
for (const p of PRINTER_OPTIONS) {
|
||||
sizesToTry.push({ w: 8.27, h: 11.69, printer: p, name: "A4" });
|
||||
sizesToTry.push({ w: 11.69, h: 8.27, printer: p, name: "A4_rot" });
|
||||
sizesToTry.push({ w: 8.5, h: 11, printer: p, name: "Letter" });
|
||||
sizesToTry.push({ w: 11, h: 8.5, printer: p, name: "Letter_rot" });
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
for (const p of PRINTER_OPTIONS) {
|
||||
for (const s of STANDARD_SIZES) {
|
||||
const exists = sizesToTry.some(x => Math.abs(x.w - s.w) < 0.01 && Math.abs(x.h - s.h) < 0.01 && x.printer.key === p.key);
|
||||
if (!exists) sizesToTry.push({ w: s.w, h: s.h, printer: p, name: s.name || `${s.w}x${s.h}` });
|
||||
}
|
||||
}
|
||||
|
||||
// Duplikate entfernen & Reihenfolge behalten
|
||||
const uniqSizes = [];
|
||||
const seen = new Set();
|
||||
for (const s of sizesToTry) {
|
||||
const key = `${s.printer.key}-${Math.round(s.w*100)}/${Math.round(s.h*100)}`;
|
||||
if (!seen.has(key)) { seen.add(key); uniqSizes.push(s); }
|
||||
}
|
||||
|
||||
// Versuche rendern
|
||||
let renderResult = null;
|
||||
for (const s of uniqSizes) {
|
||||
const wStr = fmtInches(s.w);
|
||||
const hStr = fmtInches(s.h);
|
||||
console.log(`Versuche rendern: printer=${s.printer.key} size=${wStr}x${hStr} (${s.name || ""})`);
|
||||
renderResult = await tryLabelaryRender(zpl, s.printer.key, wStr, hStr);
|
||||
if (renderResult.ok) { console.log(`Erfolg mit ${s.printer.key} ${wStr}x${hStr}`); break; }
|
||||
else { console.log(`Fehler (${renderResult.status}) mit ${s.printer.key} ${wStr}x${hStr}`); }
|
||||
}
|
||||
|
||||
if (!renderResult || !renderResult.ok) {
|
||||
console.error("Alle Render-Versuche fehlgeschlagen, Abbruch.");
|
||||
busy = false;
|
||||
return;
|
||||
}
|
||||
|
||||
// PNG speichern — neue Datei mit Timestamp (History)
|
||||
const pngBuffer = renderResult.buffer;
|
||||
const timestamp = Date.now();
|
||||
const outFile = path.join(IMG_DIR, `label-${timestamp}.png`);
|
||||
fs.writeFileSync(outFile, pngBuffer);
|
||||
console.log("PNG erstellt:", outFile);
|
||||
|
||||
// ZPL-Datei löschen (optional)
|
||||
try { fs.unlinkSync(filePath); } catch(e){ console.warn("Konnte ZPL nicht löschen:", e.message); }
|
||||
|
||||
// Fenster benachrichtigen (sende neuen PNG-Pfad)
|
||||
win.webContents.send("show-png", outFile);
|
||||
|
||||
} catch (err) {
|
||||
console.error("Fehler beim Rendern:", err && err.message ? err.message : err);
|
||||
} finally {
|
||||
busy = false;
|
||||
}
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user