Dark [Combo Box], [Custom Control]

#region Derectives
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Windows.Forms;
#endregion
#region Copyright & Contact
// Creator  : Cheat Eye
// CEO      : Yassine Abbani
// Facebook : https://www.facebook.com/YassineAbbani.user
// Pastebin : https://pastebin.com/u/Yassine_Abbani
// Youtube  : https://www.youtube.com/channel/UCqvOCRs3HWbPH4yuZuTx8mw
// Version  : 1.0
// Color    : Dark
// Project  : Creator Eye UI
#endregion

#region ComboBox
class Ce_ComboBox : ComboBox
{
    #region "Properties"
    #region Installing
    private int X;
    public Ce_ComboBox()
        : base()
    {
        TextChanged += GhostCombo_TextChanged;
        DropDownClosed += GhostComboBox_DropDownClosed;
        SetStyle(ControlStyles.AllPaintingInWmPaint | ControlStyles.ResizeRedraw | ControlStyles.UserPaint | ControlStyles.DoubleBuffer, true);
        DrawMode = DrawMode.OwnerDrawFixed;
        ItemHeight = 18;
        // Items Panel  BackColor (20, 20, 20)
        BackColor = Color.FromArgb(20, 20, 20);
        DropDownStyle = ComboBoxStyle.DropDownList;
    }
    #endregion
    #region Point Location
    public Point[] Triangle(Point Location, Size Size)
    {
        Point[] ReturnPoints = new Point[4];
        ReturnPoints[0] = Location;
        ReturnPoints[1] = new Point(Location.X + Size.Width, Location.Y);
        ReturnPoints[2] = new Point(Location.X + Size.Width / 2, Location.Y + Size.Height);
        ReturnPoints[3] = Location;

        return ReturnPoints;
    }
    #endregion
    #endregion
    #region "EventArgs"
    protected override void OnMouseMove(System.Windows.Forms.MouseEventArgs e)
    {
        base.OnMouseMove(e);
        X = e.X;
        Invalidate();
    }
    protected override void OnMouseLeave(System.EventArgs e)
    {
        base.OnMouseLeave(e);
        X = -1;
        Invalidate();
    }
    private void GhostComboBox_DropDownClosed(object sender, System.EventArgs e)
    {
        DropDownStyle = ComboBoxStyle.Simple;
        Application.DoEvents();
        DropDownStyle = ComboBoxStyle.DropDownList;
    }
    private void GhostCombo_TextChanged(object sender, System.EventArgs e)
    {
        Invalidate();
    }
    protected override void OnDrawItem(DrawItemEventArgs e)
    {
        if (e.Index < 0)
            return;
        Rectangle rect = new Rectangle();
        rect.X = e.Bounds.X;
        rect.Y = e.Bounds.Y;
        rect.Width = e.Bounds.Width - 1;
        rect.Height = e.Bounds.Height - 1;

        e.DrawBackground();
        if ((int)e.State == 785 | (int)e.State == 17)
        {
            e.Graphics.FillRectangle(new SolidBrush(BackColor), e.Bounds);
            Rectangle x2 = new Rectangle(e.Bounds.Location, new Size(e.Bounds.Width + 2, e.Bounds.Height));
            Rectangle x3 = new Rectangle(x2.Location, new Size(x2.Width, (x2.Height / 2) - 1));
            // Items Button  BackColor Color.FromArgb(20, 20, 20), Color.FromArgb(112, 128, 144)
            LinearGradientBrush G1 = new LinearGradientBrush(new Point(x2.X, x2.Y), new Point(x2.X, x2.Y + x2.Height), Color.FromArgb(20, 20, 20), Color.FromArgb(112, 128, 144));
            // Items Button Transparent BackColor Effect (15, Color.Blue)
            HatchBrush H = new HatchBrush(HatchStyle.DarkUpwardDiagonal, Color.FromArgb(15, Color.Blue), Color.Transparent);
            e.Graphics.FillRectangle(G1, x2);
            G1.Dispose();
            // Items Button Top Color (25, Color.White)
            e.Graphics.FillRectangle(new SolidBrush(Color.FromArgb(25, Color.White)), x3);
            e.Graphics.FillRectangle(H, x2);
            G1.Dispose();
            e.Graphics.DrawString(" " + Items[e.Index].ToString(), Font, Brushes.Black, e.Bounds.X, e.Bounds.Y + 1);
        }
        else
        {
            e.Graphics.FillRectangle(new SolidBrush(BackColor), e.Bounds);
            // Itmes  Text Color
            e.Graphics.DrawString(" " + Items[e.Index].ToString(), Font, Brushes.DimGray, e.Bounds.X, e.Bounds.Y + 1);

        }

        base.OnDrawItem(e);
    }
    #endregion
    #region "Method"
    protected override void OnPaint(PaintEventArgs e)
    {
        if (!(DropDownStyle == ComboBoxStyle.DropDownList))
            DropDownStyle = ComboBoxStyle.DropDownList;
        Bitmap B = new Bitmap(Width, Height);
        Graphics G = Graphics.FromImage(B);

        G.Clear(Color.FromArgb(20, 20, 20));
        LinearGradientBrush GradientBrush = new LinearGradientBrush(new Rectangle(0, 0, Width, Height / 5 * 2), Color.FromArgb(20, 0, 0, 0), Color.FromArgb(15, Color.White), 90f);
        G.FillRectangle(GradientBrush, new Rectangle(0, 0, Width, Height / 5 * 2));
        HatchBrush hatch = default(HatchBrush);
        hatch = new HatchBrush(HatchStyle.DarkUpwardDiagonal, Color.FromArgb(20, Color.Black), Color.FromArgb(0, Color.Gray));
        G.FillRectangle(hatch, 0, 0, Width, Height);

        int S1 = (int)G.MeasureString("Ce ComboBox", Font).Height;
        if (SelectedIndex != -1)
        {
            G.DrawString(Items[SelectedIndex].ToString(), Font, new SolidBrush(Color.DimGray), 4, Height / 2 - S1 / 2);
        }
        else
        {
            if ((Items != null) & Items.Count > 0)
            {
                // On Changed Text Color (Color.DimGray)
                G.DrawString(Items[0].ToString(), Font, new SolidBrush(Color.DimGray), 4, Height / 2 - S1 / 2);
            }
            else
            {
                // Correct  Text Name "Ce ComboBox",  Color (Color.DimGray)
                G.DrawString("Ce ComboBox", Font, new SolidBrush(Color.DimGray), 4, Height / 2 - S1 / 2);
            }
        }

        if (MouseButtons == MouseButtons.None & X > Width - 25)
        {
            //G.FillRectangle(New SolidBrush(Color.FromArgb(7, Color.White)), Width - 25, 1, Width - 25, Height - 3)
            //  ElseIf MouseButtons = Windows.Forms.MouseButtons.None And X < Width - 25 And X >= 0 Then
            G.FillRectangle(new SolidBrush(Color.FromArgb(7, Color.White)), 2, 1, Width - 5, Height - 3);
        }

        G.DrawRectangle(Pens.Black, 0, 0, Width - 1, Height - 1);
        G.DrawRectangle(new Pen(Color.FromArgb(40, 40, 40)), 1, 1, Width - 3, Height - 3);
        //G.DrawLine(New Pen(Color.FromArgb(40, 40, 40)), Width - 25, 1, Width - 25, Height - 3)
        //G.DrawLine(Pens.Black, Width - 24, 0, Width - 24, Height)
        // G.DrawLine(New Pen(Color.FromArgb(40, 40, 40)), Width - 23, 1, Width - 23, Height - 3)

        G.FillPolygon(Brushes.Black, Triangle(new Point(Width - 14, Height / 2), new Size(5, 3)));
        G.FillPolygon(Brushes.White, Triangle(new Point(Width - 15, Height / 2 - 1), new Size(5, 3)));

        e.Graphics.DrawImage((Bitmap)B.Clone(), 0, 0);
        G.Dispose();
        B.Dispose();
    }
    #endregion
}
#endregion