Imports System.Globalization
Imports EgtUILib

Public Class NumericKeyboardWD

    Dim MainWindowUC As MainWindow = Application.Current.MainWindow
    Public m_CurrentTxBx As TextBox
    Public m_CurrentLbl As String = String.Empty
    Private m_sErrorString As String = String.Empty
    Dim m_bErrorState As Boolean = False

    Private Sub NumericKeyboardWD_Initialized(sender As Object, e As EventArgs)
        m_sErrorString = EgtMsg(MSG_NUMERICKEYBOARD + 1)
    End Sub

    Private Sub NumericKeyboardWD_IsVisibleChanged(sender As Object, e As DependencyPropertyChangedEventArgs)
        If Me.IsVisible Then
            NumericKeyboardWDTextBox.Text = m_CurrentTxBx.Text
            NumericKeyboardWDTitle.Text = m_CurrentLbl
        Else
            NumericKeyboardWDTitle.Foreground = Brushes.Black
        End If
    End Sub

    Private Sub NumericKeyboardWD_Unloaded(sender As Object, e As RoutedEventArgs)
        NumericKeyboardWDTitle.Foreground = Brushes.Black
        MainWindowUC.Focus()
    End Sub

    Private Sub NumericKeyboardWD_KeyDown(sender As Object, e As KeyEventArgs)
        If (e.Key = Key.Enter) Then
            Visibility = Windows.Visibility.Hidden
        End If
    End Sub

    Private Sub Btn0WD_Click(sender As Object, e As RoutedEventArgs)
        NumericKeyboardWDTextBox.Text &= "0"
    End Sub

    Private Sub Btn1WD_Click(sender As Object, e As RoutedEventArgs)
        NumericKeyboardWDTextBox.Text &= "1"
    End Sub


    Private Sub Btn2WD_Click(sender As Object, e As RoutedEventArgs)
        NumericKeyboardWDTextBox.Text &= "2"
    End Sub

    Private Sub Btn3WD_Click(sender As Object, e As RoutedEventArgs)
        NumericKeyboardWDTextBox.Text &= "3"
    End Sub

    Private Sub Btn4WD_Click(sender As Object, e As RoutedEventArgs)
        NumericKeyboardWDTextBox.Text &= "4"
    End Sub

    Private Sub Btn5WD_Click(sender As Object, e As RoutedEventArgs)
        NumericKeyboardWDTextBox.Text &= "5"
    End Sub

    Private Sub Btn6WD_Click(sender As Object, e As RoutedEventArgs)
        NumericKeyboardWDTextBox.Text &= "6"
    End Sub

    Private Sub Btn7WD_Click(sender As Object, e As RoutedEventArgs)
        NumericKeyboardWDTextBox.Text &= "7"
    End Sub

    Private Sub Btn8WD_Click(sender As Object, e As RoutedEventArgs)
        NumericKeyboardWDTextBox.Text &= "8"
    End Sub

    Private Sub Btn9WD_Click(sender As Object, e As RoutedEventArgs)
        NumericKeyboardWDTextBox.Text &= "9"
    End Sub

    Private Sub BtnDotWD_Click(sender As Object, e As RoutedEventArgs)
        NumericKeyboardWDTextBox.Text &= "."
    End Sub

    Private Sub BtnEvaluateWD_Click(sender As Object, e As RoutedEventArgs)
        Evaluate()
    End Sub

    Private Sub BtnPlusWD_Click(sender As Object, e As RoutedEventArgs)
        NumericKeyboardWDTextBox.Text &= "+"
    End Sub

    Private Sub BtnMinusWD_Click(sender As Object, e As RoutedEventArgs)
        NumericKeyboardWDTextBox.Text &= "-"
    End Sub

    Private Sub BtnMultiplicationWD_Click(sender As Object, e As RoutedEventArgs)
        NumericKeyboardWDTextBox.Text &= "*"
    End Sub

    Private Sub BtnDivisionWD_Click(sender As Object, e As RoutedEventArgs)
        NumericKeyboardWDTextBox.Text &= "/"
    End Sub

    Private Sub BtnDeleteWD_Click(sender As Object, e As RoutedEventArgs)
        If NumericKeyboardWDTextBox.Text = String.Empty Then
            Return
        Else
            NumericKeyboardWDTextBox.Text = NumericKeyboardWDTextBox.Text.Substring(0, NumericKeyboardWDTextBox.Text.Length - 1)
        End If
    End Sub

    Private Sub BtnCancelWD_Click(sender As Object, e As RoutedEventArgs)
        If m_bErrorState Then
            NumericKeyboardWDTextBox.Text = String.Empty
            NumericKeyboardWDTitle.Foreground = Brushes.Black
            NumericKeyboardWDTitle.Text = m_CurrentLbl
            m_bErrorState = False
        Else
            NumericKeyboardWDTextBox.Text = String.Empty
        End If
    End Sub

    Private Sub BtnExitWD_Click(sender As Object, e As RoutedEventArgs)
        Visibility = Windows.Visibility.Hidden
        NumericKeyboardWDTextBox.Text = String.Empty
    End Sub

    Private Sub BtnApplyWD_Click(sender As Object, e As RoutedEventArgs)
        Evaluate()
        If m_bErrorState Then
        Else
            m_CurrentTxBx.Text = NumericKeyboardWDTextBox.Text
            NumericKeyboardWDTextBox.Text = String.Empty
            Visibility = Windows.Visibility.Hidden
        End If
    End Sub

    Private Sub Evaluate()
        Dim DoubleResult As Double = 0
        Dim bOk As Boolean = EgtUILib.EgtLuaEvalNumExpr(NumericKeyboardWDTextBox.Text, DoubleResult)
        If (bOk) Then
            NumericKeyboardWDTextBox.Text = DoubleResult.ToString(CultureInfo.InvariantCulture)
            If m_bErrorState Then
                m_bErrorState = False
                NumericKeyboardWDTitle.Foreground = Brushes.Black
                NumericKeyboardWDTitle.Text = m_CurrentLbl
            End If
        Else
            m_bErrorState = True
            NumericKeyboardWDTitle.Foreground = Brushes.Red
            NumericKeyboardWDTitle.Text = m_sErrorString
        End If
    End Sub

End Class