protected void DrawUnthemedBackground(Graphics g, Rectangle r, int columnIndex, bool isSelected, HeaderStateStyle stateStyle)
{
if (stateStyle.BackColor.IsEmpty)
// I know we're supposed to be drawing the unthemed background, but let's just see if we
// can draw something more interesting than the dull raised block
if (VisualStyleRenderer.IsSupported &&
VisualStyleRenderer.IsElementDefined(VisualStyleElement.Header.Item.Normal))
this.DrawThemedBackground(g, r, columnIndex, isSelected);
else
ControlPaint.DrawBorder3D(g, r, Border3DStyle.RaisedInner);
else {
using (Brush b = new SolidBrush(stateStyle.BackColor))
g.FillRectangle(b, r);
}
// Draw the frame if the style asks for one
if (!stateStyle.FrameColor.IsEmpty && stateStyle.FrameWidth > 0f) {
RectangleF r2 = r;
r2.Inflate(-stateStyle.FrameWidth, -stateStyle.FrameWidth);
g.DrawRectangle(new Pen(stateStyle.FrameColor, stateStyle.FrameWidth),
r2.X, r2.Y, r2.Width, r2.Height);
}
}