Add qmodmaster and move udp app to applications

Applications/qModMaster/forms/settingsmodbustcp.cpp

@@ -0,0 +1,81 @@
+#include <QtDebug>
+#include <QMessageBox>
+#include "settingsmodbustcp.h"
+#include "ui_settingsmodbustcp.h"
+
+SettingsModbusTCP::SettingsModbusTCP(QWidget *parent, ModbusCommSettings * settings) :
+    QDialog(parent),
+    ui(new Ui::SettingsModbusTCP),
+    m_settings(settings)
+{
+    ui->setupUi(this);
+
+    connect(ui->buttonBox,SIGNAL(accepted()),this,SLOT(changesAccepted()));
+}
+
+SettingsModbusTCP::~SettingsModbusTCP()
+{
+    delete ui;
+}
+
+void SettingsModbusTCP::showEvent(QShowEvent * event)
+{
+
+    //Load Settings
+    ui->leSlaveIP->setEnabled(!modbus_connected);
+    ui->leTCPPort->setEnabled(!modbus_connected);
+    if (m_settings != NULL) {
+        ui->leTCPPort->setText(m_settings->TCPPort());
+        ui->leSlaveIP->setText(m_settings->slaveIP());
+    }
+
+}
+
+void SettingsModbusTCP::changesAccepted()
+{
+    int validation;
+
+    validation = validateInputs();
+    switch(validation){
+        case 0 : // ok
+            //Save Settings
+            if (m_settings != NULL) {
+                m_settings->setTCPPort(ui->leTCPPort->text());
+                m_settings->setSlaveIP(ui->leSlaveIP->text());
+            }
+            break;
+        case 1 : // wrong ip
+            QMessageBox::critical(NULL, "Modbus TCP Settings","Wrong IP Address.");
+            break;
+        case 2 : // wrong port
+            QMessageBox::critical(NULL, "Modbus TCP Settings","Wrong Port Number.");
+            break;
+    }
+
+}
+
+int SettingsModbusTCP::validateInputs()
+{
+    //Strip zero's from IP
+    QStringList ipBytes;
+    bool ok;
+    int i, ipByte, port;
+
+    ipBytes = (ui->leSlaveIP->text()).split(".");
+    if (ipBytes.size() == 4){
+        for (i = 0; i < ipBytes.size(); i++){
+            ipByte = ipBytes[i].toInt(&ok);
+            if (!ok || ipByte > 255 )
+                return 1; // wrong ip
+        }
+    }
+    else
+        return 1; // wrong ip
+
+    port = (ui->leTCPPort->text()).toInt(&ok);
+    if (!ok || port <= 0 || port > 65535)
+        return 2; // wrong port
+
+    return 0; // validate ok
+
+}