Imports System.Drawing.Drawing2D

'-------------------- [ /ComboBox ] ---------------------
Public Class ReactorComboBox : Inherits ComboBox

#Region " Control Help - Properties & Flicker Control "
    Protected Overrides Sub OnPaintBackground(ByVal pevent As System.Windows.Forms.PaintEventArgs)
    End Sub
    Private _StartIndex As Integer = 0
    Public Property StartIndex() As Integer
        Get
            Return _StartIndex
        End Get
        Set(ByVal value As Integer)
            _StartIndex = value

            Try
                If Not MyBase.SelectedIndex <> Nothing Then
                    MyBase.SelectedIndex = value
                End If

            Catch
            End Try
            Invalidate()
        End Set
    End Property
    Private LightBlack As Color = Color.FromArgb(37, 37, 37)
    Private LighterBlack As Color = Color.FromArgb(60, 60, 60)
    Sub ReplaceItem(ByVal sender As System.Object, ByVal e As System.Windows.Forms.DrawItemEventArgs) Handles Me.DrawItem
        e.DrawBackground()
        Try


            If (e.State And DrawItemState.Selected) = DrawItemState.Selected Then
                e.Graphics.FillRectangle(New SolidBrush(Color.FromArgb(255, 0, 36, 0)), e.Bounds) '37 37 37
            End If
            If e.Index > -1 Then
                Using b As New SolidBrush(e.ForeColor)
                    e.Graphics.DrawString(MyBase.GetItemText(MyBase.Items(e.Index)), e.Font, b, e.Bounds)
                End Using
            End If


        Catch
        End Try

        e.DrawFocusRectangle()
    End Sub
    Protected Sub DrawTriangle(ByVal Clr As Color, ByVal FirstPoint As Point, ByVal SecondPoint As Point, ByVal ThirdPoint As Point, ByVal G As Graphics)
        Dim points As New List(Of Point)()
        points.Add(FirstPoint)
        points.Add(SecondPoint)
        points.Add(ThirdPoint)
        G.FillPolygon(New SolidBrush(Clr), points.ToArray)
    End Sub
#End Region

    Sub New()
        MyBase.New()
        SetStyle(ControlStyles.AllPaintingInWmPaint Or _
        ControlStyles.ResizeRedraw Or _
        ControlStyles.UserPaint Or _
        ControlStyles.DoubleBuffer, True)
        DrawMode = Windows.Forms.DrawMode.OwnerDrawFixed
        BackColor = Color.Black
        ForeColor = Color.White
        DropDownStyle = ComboBoxStyle.DropDownList
        DoubleBuffered = True
        Invalidate()
    End Sub

    Protected Overrides Sub OnPaint(ByVal e As PaintEventArgs)
        MyBase.OnPaint(e)
        Dim G As Graphics = e.Graphics
        Dim T As LinearGradientBrush = New LinearGradientBrush(New Rectangle(0, 0, Width, 10), Color.FromArgb(62, Color.White), Color.FromArgb(30, Color.White), 90S)
        Dim DrawCornersBrush As SolidBrush
        DrawCornersBrush = New SolidBrush(Color.FromArgb(37, 37, 37))
        Try
            With G
                .SmoothingMode = SmoothingMode.HighQuality
                .Clear(Color.FromArgb(37, 37, 37))
                .FillRectangle(T, New Rectangle(Width - 20, 0, Width, 9))
                .DrawLine(Pens.Black, Width - 20, 0, Width - 20, Height)
                Try
                    '.DrawString(Items(SelectedIndex).ToString, Font, Brushes.White, New Rectangle(New Point(3, 3), New Size(Width - 18, Height)))
                    .DrawString(Text, Font, Brushes.White, New Rectangle(3, 0, Width - 20, Height), New StringFormat With {.LineAlignment = StringAlignment.Center, .Alignment = StringAlignment.Near})
                Catch
                End Try

                .DrawLine(New Pen(New SolidBrush(Color.FromArgb(37, 37, 37))), 0, 0, 0, 0)
                .DrawRectangle(New Pen(New SolidBrush(Color.FromArgb(0, 0, 0))), New Rectangle(1, 1, Width - 3, Height - 3))

                .DrawLine(New Pen(New SolidBrush(Color.FromArgb(45, 45, 45))), 0, 0, Width, 0)
                .DrawLine(New Pen(New SolidBrush(Color.FromArgb(45, 45, 45))), 0, 0, 0, Height)
                .DrawLine(New Pen(New SolidBrush(Color.FromArgb(45, 45, 45))), Width - 1, 0, Width - 1, Height)
                .DrawLine(New Pen(New SolidBrush(Color.FromArgb(70, 70, 70))), 0, Height - 1, Width, Height - 1)

                DrawTriangle(Color.White, New Point(Width - 14, 8), New Point(Width - 7, 8), New Point(Width - 11, 11), G)
            End With
        Catch
        End Try
    End Sub
End Class