Merge branch 'choose_printer'

src/gui/settingsdialog.cpp

@@ -6,6 +6,7 @@
 #include <posprinter.h>
 
 #include <exception>
+#include <stdexcept>
 
 #include <QMessageBox>
 #include <QSettings>
@@ -16,7 +17,7 @@ SettingsDialog::SettingsDialog(QWidget* parent, Qt::WindowFlags f) : QDialog(par
 
     QSettings settings{};
     int cashPointNo = settings.value("global/cashPointNo").toInt();
-    // QString posPrinterDevice = settings.value("global/posPrinterDevice").toString();
+    QString posPrinterDevice = settings.value("global/posPrinterDevice").toString();
     int feeInPercent = settings.value("global/feeInPercent").toInt();
     int maxFeeInEuro = settings.value("global/maxFeeInEuro").toInt();
 
@@ -24,26 +25,44 @@ SettingsDialog::SettingsDialog(QWidget* parent, Qt::WindowFlags f) : QDialog(par
         market_ = dynamic_cast<MainWindow*>(parent)->getMarketplace();
 
     ui_.cashPointNoSpinBox->setValue(cashPointNo);
-    // ui_.posPrinterDeviceEdit->setText(posPrinterDevice);
+    ui_.posPrinterDeviceEdit->setText(posPrinterDevice);
     ui_.feePercentSpinBox->setValue(feeInPercent);
     ui_.maxFeeSpinBox->setValue(maxFeeInEuro);
 
     connect(ui_.testPosPrinterButton, &QPushButton::clicked, this, [=]() {
         using namespace std::string_literals;
         try {
-            PosPrinter printer;
-            printer.printTest();
-            if (printer.isValid())
-                this->ui_.posPrinterDeviceEdit->setText("<gefunden>");
-            else
-                this->ui_.posPrinterDeviceEdit->setText("<nicht gefunden>");
+            if (ui_.posPrinterDeviceEdit->text().isEmpty()) {
+                PosPrinter printer;
+                printer.printTest();
+            } else {
+                std::string posPrinterDeviceString = ui_.posPrinterDeviceEdit->text().toStdString();
+                std::string delimiter = ":";
+                PrinterDevice printerDevice;
+                try {
+                    printerDevice.idVendor = std::stoi(
+                        posPrinterDeviceString.substr(0, posPrinterDeviceString.find(delimiter)), 0,
+                        16);
+                    printerDevice.idProduct = std::stoi(
+                        posPrinterDeviceString.substr(posPrinterDeviceString.find(delimiter) + 1),
+                        0, 16);
+                } catch (std::exception&) {
+                    QMessageBox(QMessageBox::Icon::Warning, "Falsche Eingabe",
+                                QString("Eingabeformat für den Bondrucker (hexadezimale IDs): "
+                                        "<VendorID>:<ProductID>\nBeispiel: 0416:5011"),
+                                QMessageBox::StandardButton::Ok, this)
+                        .exec();
+                    return;
+                }
 
+                PosPrinter printer(printerDevice);
+                printer.printTest();
+            }
         } catch (std::runtime_error& err) {
             QMessageBox(QMessageBox::Icon::Warning, "Bondrucker Fehler",
                         QString("Test schlug fehl: ") + err.what(), QMessageBox::StandardButton::Ok,
                         this)
                 .exec();
-            this->ui_.posPrinterDeviceEdit->setText("<Fehler>");
             return;
         }
     });
@@ -56,7 +75,7 @@ void SettingsDialog::accept()
     int oldCashPointNo = settings.value("global/cashPointNo").toInt();
     int newCashPointNo = ui_.cashPointNoSpinBox->value();
 
-    // settings.setValue("global/posPrinterDevice", ui_.posPrinterDeviceEdit->text());
+    settings.setValue("global/posPrinterDevice", ui_.posPrinterDeviceEdit->text());
     settings.setValue("global/feeInPercent", ui_.feePercentSpinBox->value());
     settings.setValue("global/maxFeeInEuro", ui_.maxFeeSpinBox->value());
 

src/gui/settingsdialog.ui

@@ -7,7 +7,7 @@
     <x>0</x>
     <y>0</y>
     <width>400</width>
-    <height>180</height>
+    <height>203</height>
    </rect>
   </property>
   <property name="windowTitle">
@@ -33,8 +33,8 @@
    </item>
    <item row="1" column="1">
     <widget class="QLineEdit" name="posPrinterDeviceEdit">
-     <property name="enabled">
-      <bool>false</bool>
+     <property name="toolTip">
+      <string>&lt;idVendor&gt;:&lt;idProduct&gt;</string>
      </property>
     </widget>
    </item>

src/printer/posprinter.cpp

@@ -20,7 +20,9 @@ const std::string PosPrinter::Command::FONT_SIZE_BIG = {0x1b, 0x21, 0x10};
 const std::string PosPrinter::Command::FONT_SIZE_NORMAL = {0x1b, 0x21, 0x00};
 const std::string PosPrinter::Command::FEED = {0x1b, 0x64, 0x03};
 
-PosPrinter::PosPrinter()
+PosPrinter::PosPrinter() : PosPrinter(PrinterDevice()) {}
+
+PosPrinter::PosPrinter(const PrinterDevice& printerDevice) : printerDevice_(printerDevice)
 {
     int retValue;
 
@@ -35,12 +37,23 @@ PosPrinter::PosPrinter()
         libusb_exit(contextPtr_);
         throw std::runtime_error("Could not receive device list");
     }
+
     int numDevice = -1;
+
     for (int i = 0; i < devCount; ++i) {
         libusb_device_descriptor desc;
         libusb_get_device_descriptor(devList[i], &desc);
-        for (const auto& supported : supportedPrinters_.models) {
-            if (desc.idVendor == supported.first && desc.idProduct == supported.second) {
+
+        if (printerDevice_.idVendor == 0) {
+            for (const auto& supported : supportedPrinters_.models) {
+                if (desc.idVendor == supported.first && desc.idProduct == supported.second) {
+                    numDevice = i;
+                    break;
+                }
+            }
+        } else {
+            if (desc.idVendor == printerDevice_.idVendor &&
+                desc.idProduct == printerDevice_.idProduct) {
                 numDevice = i;
                 break;
             }

src/printer/posprinter.h

@@ -16,10 +16,16 @@ struct SupportedPrinters {
     };
 };
 
+struct PrinterDevice {
+    int idVendor{};
+    int idProduct{};
+};
+
 class PosPrinter
 {
   public:
     PosPrinter();
+    PosPrinter(const PrinterDevice& printerDevice);
     ~PosPrinter();
     void write(const std::string& text);
     void printHeader();
@@ -43,6 +49,7 @@ class PosPrinter
     libusb_context* contextPtr_{};
     libusb_device_handle* devicePtr_{};
     SupportedPrinters supportedPrinters_;
+    PrinterDevice printerDevice_{};
 };
 
 #endif