[SOLVED] Strange behavior while using QGraphicsWidget with QGraphicsDropShadowEffect

remmos

Hello,

I've a prob with my own QGraphicsWidget subclass and QGraphicsDropShadowEffect ...

My QGraphicsWidget should be something like a "Toolbar" with outer-glow - should be 100% width and 150px height.

So far no problem:

In my MainWindow (QGraphicsView) I've done this:

@
MainWindow::MainWindow(QWidget *parent) :
QGraphicsView(parent),
scene(new QGraphicsScene)
{
this->setScene(scene);
this->setMinimumSize(1024, 768);
this->setStyleSheet("background-color: #151515;");
this->setWindowTitle("Test 1");

MenuBar *menuBar = new MenuBar();
menuBar->setParentView(this);
scene->addItem(menuBar);

this->show();

}

void MainWindow::resizeEvent(QResizeEvent *event) {
this->scene->setSceneRect(QRectF(QPointF(0, 0), event->size()));
QGraphicsView::resizeEvent(event);
}
@

And my subclass MenuBar of QGraphicsWidget:

@
MenuBar::MenuBar(QGraphicsWidget *parent) :
QGraphicsWidget(parent)
{
glowEffectTimer = new QTimer();
connect(glowEffectTimer, SIGNAL(timeout()), this, SLOT(updateGlowEffectColor()));
glowEffectTimer->setInterval(500);
glowEffectTimer->start();

glowEffect = new QGraphicsDropShadowEffect;
glowEffect->setBlurRadius(30);
glowEffect->setOffset(0, 2);
this->setGraphicsEffect(glowEffect);

}

void MenuBar::setParentView(QGraphicsView *parentView) {
this->parentView = parentView;
}

void MenuBar::updateGlowEffectColor() {
glowColor->setHsv((glowColor->hue() < 359 ? (glowColor->hue()+2) : 0), 215, 215, 128);
glowEffect->setColor(*glowColor);
}

void MenuBar::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
{
QLinearGradient bgGradient(QPointF(0, 0), QPointF(0, 150));
bgGradient.setColorAt(0, QColor((QRgb)0xff3f3f3f));
bgGradient.setColorAt(0.47, QColor((QRgb)0xff282828));
bgGradient.setColorAt(0.48, QColor((QRgb)0xff151515));
bgGradient.setColorAt(1, QColor((QRgb)0xff202020));

painter->setBrush(bgGradient);

painter->drawRoundedRect(0, -15, parentView->width(), 165, 15, 15);

}
@

My problem now is, that the rectangle is not drawn correctly, BUT ONLY if I set the effect !?

(Is there any posibility to get this working with layouts?)

remmos

I edited the "Basic-Graphics-Layouts" example to add a QGraphicsDropShadowEffect and it's working perfekt ...

Is there anything I must note while using QGraphicsWidget with QGraphicsLinearLayout ?

(Anything I have to reimplement etc. ?)

remmos

I got it =)

I forgot setting the "container" (which holds the layout) QGraphicsWidget's geometry ...

SOLVED