using System.Drawing;
using System.Windows.Forms;
using System.Drawing.Drawing2D;

public static class Static
{
    public static Font Font = new Font("Helvetica", 9, FontStyle.Bold);
    public static StringFormat Format = new StringFormat { LineAlignment = StringAlignment.Center, Alignment = StringAlignment.Center };

    public static GraphicsPath RoundRect(Rectangle Rectangle, int Curve)
    {
        var P = new GraphicsPath();
        var ArcRectangleWidth = Curve * 2;
        P.AddArc(new Rectangle(Rectangle.X, Rectangle.Y, ArcRectangleWidth, ArcRectangleWidth), -180, 90);
        P.AddArc(new Rectangle(Rectangle.Width - ArcRectangleWidth + Rectangle.X, Rectangle.Y, ArcRectangleWidth, ArcRectangleWidth), -90, 90);
        P.AddArc(new Rectangle(Rectangle.Width - ArcRectangleWidth + Rectangle.X, Rectangle.Height - ArcRectangleWidth + Rectangle.Y, ArcRectangleWidth, ArcRectangleWidth), 0, 90);
        P.AddArc(new Rectangle(Rectangle.X, Rectangle.Height - ArcRectangleWidth + Rectangle.Y, ArcRectangleWidth, ArcRectangleWidth), 90, 90);
        P.AddLine(new Point(Rectangle.X, Rectangle.Height - ArcRectangleWidth + Rectangle.Y), new Point(Rectangle.X, Curve + Rectangle.Y));
        return P;
    }
    public static GraphicsPath RoundRect(int X, int Y, int Width, int Height, int Curve)
    {
        var Rectangle = new Rectangle(X, Y, Width, Height);
        var P = new GraphicsPath();
        int ArcRectangleWidth = Curve * 2;
        P.AddArc(new Rectangle(Rectangle.X, Rectangle.Y, ArcRectangleWidth, ArcRectangleWidth), -180, 90);
        P.AddArc(new Rectangle(Rectangle.Width - ArcRectangleWidth + Rectangle.X, Rectangle.Y, ArcRectangleWidth, ArcRectangleWidth), -90, 90);
        P.AddArc(new Rectangle(Rectangle.Width - ArcRectangleWidth + Rectangle.X, Rectangle.Height - ArcRectangleWidth + Rectangle.Y, ArcRectangleWidth, ArcRectangleWidth), 0, 90);
        P.AddArc(new Rectangle(Rectangle.X, Rectangle.Height - ArcRectangleWidth + Rectangle.Y, ArcRectangleWidth, ArcRectangleWidth), 90, 90);
        P.AddLine(new Point(Rectangle.X, Rectangle.Height - ArcRectangleWidth + Rectangle.Y), new Point(Rectangle.X, Curve + Rectangle.Y));
        return P;
    }
}

public class Facebook_WhiteButton : Control
{
    private bool IsMouseDown = false;

    private SolidBrush TB;

    public Facebook_WhiteButton()
    {
        SetStyle(ControlStyles.AllPaintingInWmPaint | ControlStyles.ResizeRedraw | ControlStyles.UserPaint | ControlStyles.DoubleBuffer, true);
        Size = new Size(131, 25);
        Font = Static.Font;
        TB = new SolidBrush(Color.FromArgb(102, 102, 102));
    }

    protected override void OnPaint(PaintEventArgs e)
    {
        var G = e.Graphics;
        G.Clear(Color.White);

        if (IsMouseDown)
        {
            G.FillPath(new SolidBrush(Color.White), Static.RoundRect(new Rectangle(0, 0, Width - 1, Height), 2));
            G.DrawPath(new Pen(Color.FromArgb(225, 226, 228)), Static.RoundRect(new Rectangle(0, 0, Width - 1, Height - 2), 2));
            G.DrawLine(new Pen(Color.FromArgb(202, 203, 205)), new Point(0, Height), new Point(Width, Height));
            G.DrawLine(new Pen(Color.FromArgb(242, 243, 245)), new Point(1, Height - 1), new Point(Width - 2, Height - 1));
        }
        else
        {
            G.FillPath(new SolidBrush(Color.FromArgb(249, 250, 251)), Static.RoundRect(new Rectangle(0, 0, Width - 1, Height), 2));
            G.DrawPath(new Pen(Color.FromArgb(205, 206, 208)), Static.RoundRect(new Rectangle(0, 0, Width - 1, Height - 2), 2));
            G.DrawLine(new Pen(Color.FromArgb(232, 233, 235)), new Point(1, Height - 1), new Point(Width - 2, Height - 1));
        }

        G.DrawString(Text, Font, TB, Bounds, Static.Format);
    }

    protected override void OnMouseDown(MouseEventArgs e)
    {
        IsMouseDown = true;
        Invalidate();
        base.OnMouseDown(e);
    }

    protected override void OnMouseUp(MouseEventArgs e)
    {
        IsMouseDown = false;
        Invalidate();
        base.OnMouseUp(e);
    }
}

public class Facebook_BlueButton : Control
{
    private bool IsMouseDown = false;

    private Color G1, G2;
    private LinearGradientBrush B;

    public Facebook_BlueButton()
    {
        SetStyle(ControlStyles.AllPaintingInWmPaint | ControlStyles.ResizeRedraw | ControlStyles.UserPaint | ControlStyles.DoubleBuffer, true);
        Size = new Size(131, 25);
        ForeColor = Color.LightGray;
        Font = Static.Font;
        G1 = Color.FromArgb(99, 123, 173);
        G2 = Color.FromArgb(79, 103, 153);
    }

    protected override void OnPaint(PaintEventArgs e)
    {
        var G = e.Graphics;
        G.Clear(Color.White);

        if (IsMouseDown)
        {
            B = new LinearGradientBrush(new Point(0, 0), new Point(0, Height), G2, G1);
        }
        else
        {
            B = new LinearGradientBrush(new Point(0, 0), new Point(0, Height), G1, G2);
            G.DrawLine(new Pen(Color.FromArgb(119, 142, 193)), new Point(1, 1), new Point(Width - 2, 1));
        }

        G.FillPath(B, Static.RoundRect(new Rectangle(0, 0, Width - 1, Height), 2));
        G.DrawPath(new Pen(Color.FromArgb(29, 56, 113)), Static.RoundRect(new Rectangle(0, 0, Width - 1, Height - 1), 2));

        G.DrawString(Text, Font, Brushes.White, Bounds, Static.Format);
    }

    protected override void OnMouseDown(MouseEventArgs e)
    {
        IsMouseDown = true;
        Invalidate();
        base.OnMouseDown(e);
    }

    protected override void OnMouseUp(MouseEventArgs e)
    {
        IsMouseDown = false;
        Invalidate();
        base.OnMouseUp(e);
    }
}