add IP address list for TCP drivers

Software/PC_Application/LibreVNA-GUI/Device/devicetcpdriver.cpp

@@ -0,0 +1,89 @@
+#include "devicetcpdriver.h"
+
+#include "ui_devicetcpdriversettings.h"
+
+#include <QLineEdit>
+
+DeviceTCPDriver::DeviceTCPDriver(QString driverName)
+{
+    specificSettings.push_back(Savable::SettingDescription(&searchAddressString, driverName+".searchAddressString", ""));
+}
+
+QWidget *DeviceTCPDriver::createSettingsWidget()
+{
+    parseSearchAddressString();
+    auto w = new QWidget();
+    auto ui = new Ui::DeviceTCPDriverSettingsWidget;
+    ui->setupUi(w);
+
+    ui->list->clear();
+    for(auto &a : searchAddresses) {
+        auto item = new QListWidgetItem();
+        if(a.isNull()) {
+            item->setText("0.0.0.0");
+        } else {
+            item->setText(a.toString());
+        }
+        item->setFlags(item->flags() | Qt::ItemIsEditable);
+        ui->list->addItem(item);
+    }
+
+    connect(ui->list->itemDelegate(), &QAbstractItemDelegate::commitData, this, [=](QWidget *pLineEdit) {
+        QString strNewText = reinterpret_cast<QLineEdit*>(pLineEdit)->text();
+        int nRow = ui->list->currentRow();
+        auto address = QHostAddress(strNewText);
+        if(!address.isNull()) {
+            // valid IP
+            searchAddresses[nRow] = address;
+            updateSearchAddressString();
+        }
+        ui->list->item(nRow)->setText(searchAddresses[nRow].toString());
+    });
+
+    connect(ui->add, &QPushButton::clicked, [=](){
+        searchAddresses.push_back(QHostAddress("0.0.0.0"));
+        auto item = new QListWidgetItem(searchAddresses.back().toString());
+        item->setFlags(item->flags() | Qt::ItemIsEditable);
+        ui->list->addItem(item);
+        updateSearchAddressString();
+    });
+
+    connect(ui->remove, &QPushButton::clicked, [=](){
+        auto index = ui->list->currentRow();
+        if(index >= 0 && index < (int) searchAddresses.size()) {
+            delete ui->list->takeItem(index);
+            searchAddresses.erase(searchAddresses.begin() + index);
+            updateSearchAddressString();
+        }
+    });
+
+    return w;
+}
+
+std::vector<QHostAddress> DeviceTCPDriver::getSearchAddresses()
+{
+    parseSearchAddressString();
+    return searchAddresses;
+}
+
+void DeviceTCPDriver::parseSearchAddressString()
+{
+    QStringList list = searchAddressString.split(",");
+    searchAddresses.clear();
+    for(auto &l : list) {
+        searchAddresses.push_back(QHostAddress(l));
+    }
+}
+
+void DeviceTCPDriver::updateSearchAddressString()
+{
+    searchAddressString = "";
+    for(auto &a : searchAddresses) {
+        searchAddressString += a.toString();
+        searchAddressString += ",";
+    }
+    if(searchAddressString.length() > 0) {
+        // remove trailing comma
+        searchAddressString.chop(1);
+    }
+}