protected override void OnPaint(PaintEventArgs e)
{
string centerText;
switch (ProgressDisplayType)
{
case ProgressDisplayType.None:
centerText = "";
break;
case ProgressDisplayType.Percentage:
centerText = Math.Round(((double)Value / (double)Maximum * 100)) + "%";
break;
case ProgressDisplayType.Numeric:
centerText = Value.ToUnitString(true) + " / " + Maximum.ToUnitString(true);
break;
case ProgressDisplayType.Both:
centerText = Math.Round(((double)Value / (double)Maximum * 100)) + "% (" + Value.ToUnitString(true) + " / " + Maximum.ToUnitString(true) + ")";
break;
default:
centerText = "";
break;
}
base.OnPaint(e);
e.Graphics.Clear(BackColor);
if (Maximum != 0)
{
e.Graphics.FillRectangle(new SolidBrush(BarColor), 0, 0, Value * Width / Maximum, Height);
e.Graphics.FillRectangle(new SolidBrush(Color.FromArgb(128, BarColor)), Value * Width / Maximum, 0, IncrementalProgress * Width / Maximum, Height);
}
if (BorderStyle == BorderStyle.FixedSingle)
{
ControlPaint.DrawBorder(e.Graphics, ClientRectangle, BorderColor, ButtonBorderStyle.Solid);
}
Brush brush;
if (BarColor.R + BarColor.G + BarColor.B > 128 * 3 && BackColor.R + BackColor.G + BackColor.B > 128 * 3)
{
brush = new SolidBrush(Color.Black);
}
else
{
brush = new SolidBrush(Color.White);
}
var rect = new Rectangle(0, 0, Width, Height);
rect.X += Padding.Left;
rect.Y += Padding.Top;
rect.Width -= Padding.Left + Padding.Right;
rect.Height -= Padding.Top + Padding.Bottom;
e.Graphics.DrawString(LeftText, Font, brush, rect, new StringFormat {
Alignment = StringAlignment.Near, LineAlignment = StringAlignment.Center
});
e.Graphics.DrawString(RightText, Font, brush, rect, new StringFormat {
Alignment = StringAlignment.Far, LineAlignment = StringAlignment.Center
});
e.Graphics.DrawString(centerText, Font, brush, rect, new StringFormat {
Alignment = StringAlignment.Center, LineAlignment = StringAlignment.Center
});
}