void Knob::drawKnob(QPainter* p, const QRect& r)
{
const QPalette& pal = palette();
QRect aRect;
aRect.setRect(r.x() + d_borderWidth,
r.y() + d_borderWidth,
r.width() - 2*d_borderWidth,
r.height() - 2*d_borderWidth);
int width = r.width();
int height = r.height();
int size = qMin(width, height);
p->setRenderHint(QPainter::Antialiasing, true);
//
// draw the rim
//
QLinearGradient linearg(QPoint(r.x(),r.y()), QPoint(size, size));
linearg.setColorAt(1 - M_PI_4, d_faceColor.lighter(125));
linearg.setColorAt(M_PI_4, d_faceColor.darker(175));
p->setBrush(linearg);
p->setPen(Qt::NoPen);
p->drawEllipse(r.x(),r.y(),size,size);
//
// draw shiny surrounding
//
QPen pn;
pn.setCapStyle(Qt::FlatCap);
pn.setColor(d_shinyColor.lighter(l_const + fabs(value() * l_slope)));
pn.setWidth(d_shineWidth * 2);
p->setPen(pn);
p->drawArc(aRect, 0, 360 * 16);
//
// draw button face
//
QRadialGradient gradient(size/2, size/2, size-d_borderWidth, size/2-d_borderWidth, size/2-d_borderWidth);
gradient.setColorAt(0, d_curFaceColor.lighter(150));
gradient.setColorAt(1, d_curFaceColor.darker(150));
p->setBrush(gradient);
p->setPen(Qt::NoPen);
p->drawEllipse(aRect);
//
// draw marker
//
//drawMarker(p, d_angle, isEnabled() ? d_markerColor : Qt::gray);
drawMarker(p, d_angle, pal.currentColorGroup() == QPalette::Disabled ?
pal.color(QPalette::Disabled, QPalette::WindowText) : d_markerColor);
}
void argexec()
{
ARG argp;
while(is_loop && (argp = ctx->linearg ? linearg() : readarg(ctx->afd, ctx->arg_num))){
if(mtnexec(argp) == -1){
clrarg(argp);
break;
}
clrarg(argp);
}
}
