void tst_QBrush::testQRadialGradientSetters()
{
QRadialGradient rg;
QCOMPARE(rg.radius(), qreal(1.0));
QCOMPARE(rg.center(), QPointF(0, 0));
QCOMPARE(rg.focalPoint(), QPointF(0, 0));
rg.setRadius(100);
QCOMPARE(rg.radius(), qreal(100.0));
rg.setCenter(101, 102);
QCOMPARE(rg.center(), QPointF(101, 102));
rg.setCenter(QPointF(201, 202));
QCOMPARE(rg.center(), QPointF(201, 202));
rg.setFocalPoint(103, 104);
QCOMPARE(rg.focalPoint(), QPointF(103, 104));
rg.setFocalPoint(QPointF(203, 204));
QCOMPARE(rg.focalPoint(), QPointF(203, 204));
}
KoStopGradient * KoStopGradient::fromQGradient(QGradient * gradient)
{
if (! gradient)
return 0;
KoStopGradient * newGradient = new KoStopGradient("");
newGradient->setType(gradient->type());
newGradient->setSpread(gradient->spread());
switch (gradient->type()) {
case QGradient::LinearGradient: {
QLinearGradient * g = static_cast<QLinearGradient*>(gradient);
newGradient->m_start = g->start();
newGradient->m_stop = g->finalStop();
newGradient->m_focalPoint = g->start();
break;
}
case QGradient::RadialGradient: {
QRadialGradient * g = static_cast<QRadialGradient*>(gradient);
newGradient->m_start = g->center();
newGradient->m_stop = g->center() + QPointF(g->radius(), 0);
newGradient->m_focalPoint = g->focalPoint();
break;
}
case QGradient::ConicalGradient: {
QConicalGradient * g = static_cast<QConicalGradient*>(gradient);
qreal radian = g->angle() * M_PI / 180.0;
newGradient->m_start = g->center();
newGradient->m_stop = QPointF(100.0 * cos(radian), 100.0 * sin(radian));
newGradient->m_focalPoint = g->center();
break;
}
default:
delete newGradient;
return 0;
}
Q_FOREACH (const QGradientStop & stop, gradient->stops()) {
KoColor color(newGradient->colorSpace());
color.fromQColor(stop.second);
newGradient->m_stops.append(KoGradientStop(stop.first, color));
}
return newGradient;
}
void RadialVolumeWidgetPrivate::paintBackground() // QGradient is soooo sloooow
{
QPainter p(&bg);
p.setRenderHint(QPainter::Antialiasing, true);
int r = spectrum.radius();
QPoint c = spectrum.center().toPoint();
p.setBrush(spectrum);
p.setPen(QPen(Qt::NoPen));
p.drawEllipse(c.x()-r, c.y()-r, 2*r, 2*r); // Gradient background
p.setBrush(QBrush()); // Do not fill
//p.setPen(QPen(QColor(255, 255, 255, 160), 0, Qt::DashLine));
for (int i=0; i<n_levels; i++)
{
int l_r = r*levels[i];
p.setPen(QPen(QColor(255, 255, 255, 255-(180*(i+1))/n_levels), 1, Qt::DashLine));
p.drawEllipse(c.x()-l_r, c.y()-l_r, 2*l_r, 2*l_r);
}
}
void Mask::mask_slot(){
int countSel = gsri->countSelected();
GObjectInterface *iObj, *endObj=gsri->selected(gsri->countSelected()-1);//создаём контейнер с выделенными рамкой объектами
qreal k_h, k_w, width_iObj, width_endObj = endObj->boundingRect().width(),
height_iObj, height_endObj = endObj->boundingRect().height();
QBrush endObjBrush = endObj->brush();
if(endObjBrush.style() == Qt::RadialGradientPattern
|| endObjBrush.style() == Qt::ConicalGradientPattern
|| endObjBrush.style() == Qt::LinearGradientPattern){
for (int i=0; i<countSel-1; i++){
iObj = gsri->selected(i);
QBrush inters = iObj->brush();
qreal iObjAlpha = inters.color().alphaF();
QGradient qg = *endObjBrush.gradient();
height_iObj = iObj->boundingRect().height();
width_iObj = iObj->boundingRect().width();
k_h = height_endObj/height_iObj;//считаем коэффициенты пропорциональности фигур для умножения-->
k_w = width_endObj/width_iObj;//-->на точки градиента(чтобы градиенты не зависели от размеров фигур).
int d_x = iObj->boundingRect().x() - endObj->boundingRect().x();//вычисляем расстояния между левыми краями фигур
int d_y = iObj->boundingRect().y() - endObj->boundingRect().y();
qreal k_shift_x = ( d_x / width_endObj) * k_w,//вычисляем коэффициенты сдвига градиента по ширине-->
k_shift_y = (d_y / height_endObj) * k_h;//--> и по высотке
QGradientStops grStops(qg.stops());//копируем точки/цвета задаваемого градиента.
QColor BrushColor = inters.gradient()->stops()[0].second;
for(int j=0; j<grStops.count(); j++){
grStops[j].second.setRgbF( BrushColor.redF(), BrushColor.greenF(), BrushColor.blueF(),
grStops[j].second.alphaF()*iObjAlpha);
}
if(qg.type() == QGradient::LinearGradient){
QLinearGradient qlg = *static_cast<const QLinearGradient *>(endObjBrush.gradient());
QLinearGradient qlgLinear(qlg.start().x() * k_w - k_shift_x, qlg.start().y() * k_h - k_shift_y,
qlg.finalStop().x() * k_w - k_shift_x, qlg.finalStop().y() * k_h - k_shift_y);
qlgLinear.setStops(grStops);
iObj->setBrush(qlgLinear);
}
if(qg.type() == QGradient::RadialGradient){
for(int j=0; j<grStops.count(); j++)
grStops[j].first *= k_w;
QRadialGradient qlg = *static_cast<const QRadialGradient *>(endObjBrush.gradient());
QRadialGradient qlgRadial(QPointF(qlg.center().x()*k_w - k_shift_x, qlg.center().y()*k_h - k_shift_y),
qlg.radius(), QPointF(qlg.focalPoint().x()*k_w - k_shift_x, qlg.focalPoint().y()*k_h - k_shift_y),
qlg.focalRadius());
qlgRadial.setStops(grStops);
iObj->setBrush(qlgRadial);
}
if(qg.type() == QGradient::ConicalGradient){
QConicalGradient qlg = *static_cast<const QConicalGradient *>(endObjBrush.gradient());
QConicalGradient qlgConical(QPointF(qlg.center().x()*k_w - k_shift_x, qlg.center().y()*k_h - k_shift_y),
qlg.angle());
qlgConical.setStops(grStops);
iObj->setBrush(qlgConical);
}
}
endObj->setVisible(false);
}
else{
QMessageBox m;
m.setText(tr("upper figure does not contain a gradient"));
m.exec();
}
gsri->reset();
}