void Draw::DrawEllipseOp(const Rect& r, Color color, int pen, Color pencolor)
{
	DrawLock __;
	SetLineStyle(pen);
	if(!IsNull(color)) {
		SetForeground(color);
		XFillArc(Xdisplay, dw, gc, r.left + actual_offset.x, r.top + actual_offset.y,
			r.Width() - 1, r.Height() - 1, 0, 360 * 64);
	}
	if(!IsNull(pencolor) && !IsNull(pen)) {
		SetForeground(pencolor);
		XDrawArc(Xdisplay, dw, gc, r.left + actual_offset.x, r.top + actual_offset.y,
			r.Width() - 1, r.Height() - 1, 0, 360 * 64);
	}
}

.......


void Draw::SetLineStyle(int width)
{
	DrawLock __;
	if(IsDrawing()) return;
	if(width == linewidth) return;
	linewidth = width;
	if(IsNull(width))
		width = 1;
	if(width < PEN_SOLID) {
		static const char dash[] = { 18, 6 };
		static const char dot[] = { 3, 3 };
		static const char dashdot[] = { 9, 6, 3, 6 };
		static const char dashdotdot[] = { 9, 3, 3, 3, 3, 3 };
		static struct {
			const char *dash;
			int   len;
		} ds[] = {
			dash, __countof(dash),
			dot, __countof(dot),
			dashdot, __countof(dashdot),
			dashdotdot, __countof(dashdotdot)
		};
		int i = -(width - PEN_DASH);
		ASSERT(i >= 0 && i < 4);
		XSetDashes(Xdisplay, gc, 0, ds[i].dash, ds[i].len);
	}
	XSetLineAttributes(Xdisplay, gc, max(width, 1),
	                   width < PEN_SOLID ? LineOnOffDash : LineSolid, CapRound, JoinRound);
}