Imports EgtUILib
Imports EgtWPFLib5
Imports System.IO

Public Class MainWindowVM
   Inherits VMBase

   ' Riferimento al Model della MainWindow
   Private m_MainWindowM As MainWindowM
   Friend ReadOnly Property MainWindowM As MainWindowM
      Get
         Return m_MainWindowM
      End Get
   End Property

   ' Dichiarazione della classe di connessione al PLC
   Friend m_CNCommunication As NCCommunication

   ' Variabile che indica che il programma è stato avviato correttamente (sia la mappa che l'ambiente Egt)
   Private m_bInitStatus As Boolean
   Friend ReadOnly Property bInitStatus As Boolean
      Get
         Return m_bInitStatus
      End Get
   End Property

   ' Titolo
   Private m_Title As String
   Public Property Title As String
      Get
         Return m_Title
      End Get
      Set(value As String)
         m_Title = value
         NotifyPropertyChanged("Title")
      End Set
   End Property

   ' definizione comandi
   Private m_cmdAboutBox As ICommand
   Private m_cmdCloseApplication As ICommand

#Region "CONSTRUCTOR"

   Sub New()
      ' Avvio l'inizializzazione della mappa passandogli il riferimento al MainWindowVM
      Map.BeginInit(Me)
      ' Creo Model della MainWindow
      m_MainWindowM = New MainWindowM
   End Sub

#End Region    ' CONSTRUCTOR

#Region "METHODS"

   Friend Sub SetTitle(sTitle As String)
      m_Title = sTitle
      NotifyPropertyChanged("Title")
   End Sub

   Friend Sub ContentRendered()
      ' Verifico che l'inizializzazione di tutte le parti del programma sia andata a buon fine
      If Map.EndInit() Then
         m_bInitStatus = True
         ' altrimenti chiudo il programma
      Else
         m_bInitStatus = False
      End If
      ' Creazione gestore comunicazione con PLC
      m_CNCommunication = New NCCommunication
      SetTitle("OmagVIEWPlus")
   End Sub

#End Region    ' METHODS

#Region "COMMANDS"

#Region "AboutBoxCommand"

   ' Returns a command that manage the MainWindow_Unloaded command
   Public ReadOnly Property AboutBoxCommand() As ICommand
      Get
         If m_cmdAboutBox Is Nothing Then
            m_cmdAboutBox = New Command(AddressOf AboutBox)
         End If
         Return m_cmdAboutBox
      End Get
   End Property

   ' Manage the MainWindow_Unloaded event. This method is invoked by the cmdMainWindow_Unloaded.
   Public Sub AboutBox(ByVal param As Object)
      Dim AboutBoxWindow As New AboutBoxV
      AboutBoxWindow.Owner = Application.Current.MainWindow
      AboutBoxWindow.ShowDialog()
   End Sub

#End Region ' AboutBoxCommand

#Region "CloseApplicationCommand"

   ' Returns a command that manage the MainWindow_Unloaded command
   Public ReadOnly Property CloseApplicationCommand() As ICommand
      Get
         If m_cmdCloseApplication Is Nothing Then
            m_cmdCloseApplication = New Command(AddressOf CloseApplication)
         End If
         Return m_cmdCloseApplication
      End Get
   End Property

   ' Manage the MainWindow_Unloaded event. This method is invoked by the cmdMainWindow_Unloaded.
   Public Sub CloseApplication(ByVal param As Object)
      ' Termino il Model
      m_MainWindowM.Close()
      ' Termino il programma
      Application.Current.Shutdown()
   End Sub

#End Region ' CloseApplicationCommand

#End Region    ' COMMANDS

End Class