Numeric ProgressBar

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Drawing;
using System.Drawing.Drawing2D;

namespace SplittyDev.Progress
{
    public class ProgressLabel : Control
    {
        internal int value;
        public int Value { get { return value; } set { this.value = value; this.Refresh (); } }

        internal Color foreColor;
        public Color ForegroundColor { get { return foreColor; } set { foreColor = value; this.Refresh (); } }

        internal Color fillColor;
        public Color FillColor { get { return fillColor; } set { fillColor = value; this.Refresh (); } }

        internal bool optimize;
        public bool Optimize { get { return optimize; } set { optimize = value; this.Refresh (); } }

        internal bool displayPercentage;
        public bool DisplayPercentage { get { return displayPercentage; } set { displayPercentage = value; this.Refresh (); } }

        public ProgressLabel ()
        {
            SetStyle (ControlStyles.AllPaintingInWmPaint | ControlStyles.OptimizedDoubleBuffer | ControlStyles.ResizeRedraw |
                ControlStyles.UserPaint, true);
            SetStyle (ControlStyles.FixedWidth | ControlStyles.FixedHeight, true);
            UpdateStyles ();

            this.value = 0;
            this.foreColor = Color.Gray;
            this.fillColor = Color.DeepSkyBlue;
            this.Font = new Font (SystemFonts.DefaultFont.FontFamily, 74f, FontStyle.Regular, GraphicsUnit.Pixel);
            this.displayPercentage = true;
            this.optimize = true;
        }

        protected override void OnInvalidated (InvalidateEventArgs e)
        {
            Size size = TextRenderer.MeasureText (this.value.ToString () + ((displayPercentage) ? "%" : ""), this.Font);
            this.Size = size;

            base.OnInvalidated (e);
        }

        protected override void OnPaint (PaintEventArgs e)
        {
            e.Graphics.CompositingQuality = CompositingQuality.HighQuality;
            e.Graphics.InterpolationMode = InterpolationMode.HighQualityBicubic;
            e.Graphics.SmoothingMode = SmoothingMode.AntiAlias;
            e.Graphics.TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAliasGridFit;

            Rectangle rect = e.ClipRectangle;
            if (Optimize) rect.Inflate (- (this.Size.Width / 7), - (this.Size.Height / 7));

            using (LinearGradientBrush overlay = new LinearGradientBrush (rect, foreColor, fillColor, LinearGradientMode.Vertical))
            {

                float val = 1.0f - (float)(((float)value) / 100.0f);

                Blend blend = new Blend ();

                blend.Factors = new float[] { 0f, 0f, 0.5f, 1f, 1f };
                blend.Positions = new float[] { 0f, (val >= 0.001f) ? val - 0.001f : 0.001f, val, (val <= 0.999f) ? val + 0.001f : 0.999f, 1.0f };

                overlay.Blend = blend;

                e.Graphics.DrawString (this.value.ToString () + ((displayPercentage) ? "%" : ""), this.Font, overlay, new Point (0, 0));

            }

            base.OnPaint (e);
        }
    }
}