void gr_stdcalproc(const char *fname){
TGraphErrors *gg1 =(TGraphErrors*)gr3(fname);
TGraphErrors *gg2= (TGraphErrors*)gr_revert(gg1);
TGraphErrors *gg3 =(TGraphErrors*)gr_fitpol(gg2,"pol1");
gPad->Clear();
gg3->SetMarkerStyle(22); gg3->Draw("pawl");
}
void ColorRing::paintEvent(QPaintEvent *event)
{
Q_UNUSED(event);
QPainter painter(this);
painter.setRenderHint(QPainter::Antialiasing, true);
QRect r = contentsRect();
r.moveTo(-r.width()/2, -r.height()/2);
painter.translate(r.width()/2, r.height()/2);
//painter.fillRect(r, QApplication::palette().window().color());
QConicalGradient gr(0, 0, 360);
for(int i = 0; i< 12; i++) {
gr.setColorAt(float(i)/12, QColor::fromHsvF(float(i)/12, 1.f, 1.f));
}
painter.setBrush(QBrush(gr));
painter.setPen(Qt::NoPen);
painter.drawPie(r, 0, 5760);
painter.scale(RING, RING);
painter.setBrush(QApplication::palette().window().color());
painter.drawPie(r, 0, 5760);
painter.rotate(-col.hueF() * 360);
painter.scale(r.width()*.5f, r.height()*.5f);
painter.setPen(Qt::SolidLine);
painter.setPen(QPen(QColor("white")));
painter.setBrush(QBrush(QColor(0,0,0,0)));
painter.drawEllipse(QPointF(1.12f, .0f), 0.1f, 0.1f);
painter.setPen(Qt::NoPen);
if(triangleMode) {
QConicalGradient gr2(points[2], 270.f);
gr2.setColorAt(.0f, QColor::fromHsvF(col.hueF(), .0f, 1.f));
gr2.setColorAt(1.f/6.f, QColor::fromHsvF(col.hueF(), 1.f, 1.f));
painter.setBrush(QBrush(gr2));
painter.drawPolygon(points, 3);
//painter.setCompositionMode(QPainter::CompositionMode_Multiply);
QLinearGradient gr3(points[2], (points[0]+points[1])*.5f);
gr3.setColorAt(.0f, QColor::fromRgbF(.0f, .0f, .0f, 1.f));
gr3.setColorAt(1.f, QColor::fromRgbF(.0f, .0f, .0f, 0.f));
painter.setBrush(QBrush(gr3));
painter.drawPolygon(points, 3);
//painter.setCompositionMode(QPainter::CompositionMode_SourceOver);
QPointF p1 = points[0] * col.saturationF() + points[1] * (1.f - col.saturationF());
QPointF p2 = p1 * col.valueF() + points[2] * (1.f - col.valueF());
painter.setPen(Qt::SolidLine);
painter.setPen(QPen(QColor("white")));
painter.setBrush(QBrush(QColor(0,0,0,0)));
painter.drawEllipse(p2, 0.1f, 0.1f);
} else { // box mode
QLinearGradient gr2(points2[0], points2[1]);
gr2.setColorAt(.0f, QColor::fromHsvF(col.hueF(), 1.f, 1.f));
gr2.setColorAt(1.f, QColor::fromHsvF(col.hueF(), .0f, 1.f));
painter.setBrush(QBrush(gr2));
painter.drawPolygon(points2, 4);
QLinearGradient gr3(points2[1], points2[2]);
gr3.setColorAt(.0f, QColor::fromRgbF(.0f, .0f, .0f, 1.f));
gr3.setColorAt(1.f, QColor::fromRgbF(.0f, .0f, .0f, 0.f));
painter.setBrush(QBrush(gr3));
painter.drawPolygon(points2, 4);
QPointF p1 = points2[0] * col.saturationF() + points2[1] * (1.f - col.saturationF());
QPointF p2 = p1 + (points2[2] - points2[1]) * col.valueF();
painter.setPen(Qt::SolidLine);
painter.setPen(QPen(QColor("white")));
painter.setBrush(QBrush(QColor(0,0,0,0)));
painter.drawEllipse(p2, 0.1f, 0.1f);
}
}
