Fix multiple lines and printer selection

src/PtouchPrint.cpp

@@ -97,7 +97,7 @@ void PtouchPrint::setupLogger() {
 
 bool PtouchPrint::handleListDrivers() {
     auto driverFactory = std::make_unique<PrinterDriverFactory>();
-    auto drivers = driverFactory->listAllDrivers();
+    auto drivers       = driverFactory->listAllDrivers();
 
     fmt::print("Available printer drivers:\n");
     for (const auto& driver : drivers) {
@@ -133,7 +133,7 @@ bool PtouchPrint::handlePrinting() {
     for (const auto& [cmdType, value] : options.commands) {
         switch (cmdType) {
             case cli::CommandType::Text:
-                labelBuilder.addText(value + "\n");
+                labelBuilder.addText(value);
                 break;
             case cli::CommandType::Font:
                 spdlog::debug("Setting font to {}", value);

src/core/PrinterService.cpp

@@ -54,6 +54,20 @@ std::vector<std::shared_ptr<IPrinterDriver>> PrinterService::detectPrinters() {
 }
 
 std::shared_ptr<IPrinterDriver> PrinterService::selectPrinter(const std::string& printerName) {
+    // If a specific printer is requested by name (not "auto"), try to create it directly
+    if (printerName != "auto") {
+        auto driverFactory = std::make_unique<PrinterDriverFactory>();
+        auto printer = driverFactory->createByName(printerName);
+        if (printer) {
+            mCurrentPrinter = printer;
+            spdlog::info("Using explicitly selected printer: {}", printerName);
+            return mCurrentPrinter;
+        }
+        spdlog::error("Printer driver '{}' not found", printerName);
+        return nullptr;
+    }
+
+    // Auto mode: detect USB printers
     if (mDetectedPrinters.empty()) {
         detectPrinters();
     }
@@ -63,24 +77,10 @@ std::shared_ptr<IPrinterDriver> PrinterService::selectPrinter(const std::string&
         return nullptr;
     }
 
-    // Auto-select first printer
-    if (printerName == "auto") {
-        mCurrentPrinter = mDetectedPrinters.front();
-        spdlog::info("Auto-selected printer: {}", mCurrentPrinter->getName());
-        return mCurrentPrinter;
-    }
-
-    // Select printer by name
-    for (auto& printer : mDetectedPrinters) {
-        if (printer->getDriverName() == printerName) {
-            mCurrentPrinter = printer;
-            spdlog::info("Using explicitly selected printer: {}", printerName);
-            return mCurrentPrinter;
-        }
-    }
-
-    spdlog::error("Printer '{}' not found", printerName);
-    return nullptr;
+    // Auto-select first detected printer
+    mCurrentPrinter = mDetectedPrinters.front();
+    spdlog::info("Auto-selected printer: {}", mCurrentPrinter->getName());
+    return mCurrentPrinter;
 }
 
 bool PrinterService::printLabel(std::unique_ptr<graphics::ILabel> label) {