Implemented INotifyPropertyChanged on MewtocolInterface

- added event for disconnect
- counted up version number

MewtocolNet/Mewtocol/MewtocolInterface.cs

@@ -11,33 +11,58 @@ using MewtocolNet.RegisterAttributes;
 using MewtocolNet.Logging;
 using System.Collections;
 using System.Diagnostics;
+using System.ComponentModel;
 
 namespace MewtocolNet {
 
     /// <summary>
     /// The PLC com interface class
     /// </summary>
-    public partial class MewtocolInterface {
+    public partial class MewtocolInterface : INotifyPropertyChanged {
 
         /// <summary>
         /// Gets triggered when the PLC connection was established
         /// </summary>
         public event Action<PLCInfo> Connected;
 
+        /// <summary>
+        /// Gets triggered when the PLC connection was closed or lost
+        /// </summary>
+        public event Action Disconnected;
+
         /// <summary>
         /// Gets triggered when a registered data register changes its value
         /// </summary>
         public event Action<Register> RegisterChanged;
 
+        /// <summary>
+        /// Gets triggered when a property of the interface changes
+        /// </summary>
+        public event PropertyChangedEventHandler PropertyChanged;
+
+        private bool isConnected;
         /// <summary>
         /// The current connection state of the interface
         /// </summary>
-        public bool IsConnected { get; private set; }       
+        public bool IsConnected {
+            get => isConnected;
+            private set {
+                isConnected = value;
+                PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(nameof(IsConnected)));
+            }
+        }
 
+        private PLCInfo plcInfo;
         /// <summary>
         /// Generic information about the connected PLC
         /// </summary>
-        public PLCInfo PlcInfo { get; private set; }
+        public PLCInfo PlcInfo { 
+            get => plcInfo; 
+            private set {
+                plcInfo = value;
+                PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(nameof(PlcInfo)));
+            }
+        }
 
         /// <summary>
         /// The registered data registers of the PLC
@@ -61,6 +86,19 @@ namespace MewtocolNet {
         /// </summary>
         public int StationNumber => stationNumber;
 
+        private int cycleTimeMs;
+        /// <summary>
+        /// The duration of the last message cycle
+        /// </summary>
+        public int CycleTimeMs {
+            get { return cycleTimeMs; }
+            set {
+                cycleTimeMs = value;
+                PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(nameof(CycleTimeMs)));
+            }
+        }
+
+
         internal List<Task> PriorityTasks { get; set; } = new List<Task>();
 
         #region Initialization
@@ -90,7 +128,8 @@ namespace MewtocolNet {
 
             RegisterChanged += (o) => {
 
-                string address = $"{o.GetRegisterString()}{o.MemoryAdress}".PadRight(5, (char)32); ;
+                string address = $"{o.GetRegisterString()}{o.MemoryAdress}".PadRight(5, (char)32);
+                ;
 
                 Logger.Log($"{address} " +
                            $"{(o.Name != null ? $"({o.Name}) " : "")}" +
@@ -144,6 +183,7 @@ namespace MewtocolNet {
 
                 if (OnFailed != null) {
                     OnFailed();
+                    Disconnected?.Invoke();
                     Logger.Log("Initial connection failed", LogLevel.Info, this);
                 }
 
@@ -190,7 +230,7 @@ namespace MewtocolNet {
                 string propName = prop.Name;
                 foreach (var attr in attributes) {
 
-                    if(attr is RegisterAttribute cAttribute) {
+                    if (attr is RegisterAttribute cAttribute) {
 
                         if (prop.PropertyType == typeof(bool) && cAttribute.AssignedBitIndex == -1) {
                             if (cAttribute.SpecialAddress == SpecialAddress.None) {
@@ -227,7 +267,7 @@ namespace MewtocolNet {
                         //read number as bit array
                         if (prop.PropertyType == typeof(BitArray)) {
 
-                            if(cAttribute.BitCount == BitCount.B16) {
+                            if (cAttribute.BitCount == BitCount.B16) {
                                 AddRegister<short>(cAttribute.MemoryArea, _name: propName, _isBitwise: true);
                             } else {
                                 AddRegister<int>(cAttribute.MemoryArea, _name: propName, _isBitwise: true);
@@ -329,7 +369,7 @@ namespace MewtocolNet {
                         }
 
 
-                    } else if(foundToUpdate.PropertyType == typeof(BitArray)) {
+                    } else if (foundToUpdate.PropertyType == typeof(BitArray)) {
 
                         //setting back bit registers
                         if (reg is NRegister<short> shortReg) {
@@ -360,7 +400,7 @@ namespace MewtocolNet {
                 collection.OnInterfaceLinked(this);
 
             Connected += (i) => {
-                if(collection != null) 
+                if (collection != null)
                     collection.OnInterfaceLinkedAndOnline(this);
             };
 
@@ -473,7 +513,7 @@ namespace MewtocolNet {
 
             string response = null;
 
-            if(ContinousReaderRunning) {
+            if (ContinousReaderRunning) {
 
                 //if the poller is active then add all messages to a qeueue
 
@@ -492,7 +532,7 @@ namespace MewtocolNet {
 
             }
 
-            if(response == null) {
+            if (response == null) {
                 return new CommandResult {
                     Success = false,
                     Error = "0000",
@@ -559,9 +599,13 @@ namespace MewtocolNet {
                         return response.ToString();
                     }
 
-                } catch(Exception) {
+                } catch (Exception) {
+
+                    if (IsConnected) {
+                        IsConnected = false;
+                        Disconnected?.Invoke();
+                    }
 
-                    IsConnected = false;
                     KillPoller();
                     Logger.Log("The PLC connection was closed", LogLevel.Error, this);
                     return null;

MewtocolNet/MewtocolNet.csproj

@@ -2,7 +2,7 @@
   <PropertyGroup>
     <TargetFramework>netstandard2.0</TargetFramework>
     <PackageId>MewtocolNet</PackageId>
-    <Version>0.3.2</Version>
+    <Version>0.3.3</Version>
     <Authors>Felix Weiss</Authors>
     <Company>Womed</Company>
     <GeneratePackageOnBuild>true</GeneratePackageOnBuild>