Imports System.Globalization
Imports EgtUILib

Module Utility

   '--------------------------------------------------------------------------------------------------
   Friend Sub UpdateUI()
      ' Costringo ad aggiornare UI
      Dim nDummy As Integer
      Application.Current.Dispatcher.Invoke(Windows.Threading.DispatcherPriority.Background, _
                                             New Action(Function() nDummy = 0))
   End Sub

   '--------------------------------------------------------------------------------------------------
   Friend Function DoubleToString(ByVal dVal As Double, ByVal nNumDec As Integer) As String
      Dim sFormat As String = "F" + Math.Abs(nNumDec).ToString()
      Dim sVal As String = dVal.ToString(sFormat, CultureInfo.InvariantCulture)
      If nNumDec > 0 Then
         Return sVal.TrimEnd("0".ToCharArray()).TrimEnd(".".ToCharArray)
      Else
         Return sVal
      End If
   End Function

   Friend Function StringToDouble(ByVal sVal As String, ByRef dVal As Double) As Boolean
      Return EgtLuaEvalNumExpr(sVal, dVal)
   End Function

   Friend Function LenToString(ByVal dVal As Double, ByVal nNumDec As Integer) As String
      Return DoubleToString(EgtToUiUnits(dVal), nNumDec)
   End Function

   Friend Function StringToLen(ByVal sVal As String, ByRef dVal As Double) As Boolean
      If EgtLuaEvalNumExpr(sVal, dVal) Then
         dVal = EgtFromUiUnits(dVal)
         Return True
      Else
         Return False
      End If
   End Function

   Friend Function UIExprToExpr(ByVal sUIExpr) As String
      If String.IsNullOrWhiteSpace(sUIExpr) Then
         Return ""
      End If
      Return sUIExpr.Replace("""", "*GEO.ONE_INCH")
   End Function

   Friend Function ExprToUIExpr(ByVal sExpr) As String
      If String.IsNullOrWhiteSpace(sExpr) Then
         Return ""
      End If
      Return sExpr.Replace("*GEO.ONE_INCH", """")
   End Function

   '--------------------------------------------------------------------------------------------------
   Public Class Language

      Private m_sLanguageName As String
      Private m_sFileName As String

      Public Property LanguageName As String
         Get
            Return m_sLanguageName
         End Get
         Set(value As String)
            m_sLanguageName = value
         End Set
      End Property

      Public Property FileName As String
         Get
            Return m_sFileName
         End Get
         Set(value As String)
            m_sFileName = value
         End Set
      End Property

      Sub New(LanguageName As String, FileName As String)
         Me.LanguageName = LanguageName
         Me.FileName = FileName
      End Sub

   End Class

   Public Function GetPrivateProfileLanguage(
                            ByVal lpAppName As String,
                            ByVal lpKeyName As String,
                            ByVal lpFileName As String) As Language

      Dim sVal As String = String.Empty
      GetPrivateProfileString(lpAppName, lpKeyName, "", sVal, lpFileName)
      Dim sItems() As String = sVal.Split(",".ToCharArray)
      If sItems.Count() = 2 Then
         Return New Language(sItems(0), sItems(1))
      End If
      Return Nothing

   End Function

End Module