QGraphicsProxyWidget does not get focus, when using setFocus()

Bugtracker

Hello.

When i use setFocus() in my program(keyPressEvent), the QGraphicsProxyWidget not gain the Focus.
The titlebar is not active and also hasFocus() return false.

What i am doing wrong?

Thank you.

I have a mini testcode here:

test.pro
@QT += core gui opengl

HEADERS +=
scene.h

SOURCES +=
main.cpp
scene.cpp@

main.cpp
@#include "scene.h"

int main(int argc, char *argv[])
{
QApplication a( argc, argv );
Scene *scene = new Scene(800, 600);

QGraphicsView view;
view.setStyleSheet( "QGraphicsView { border-style: none; }" );
QGLFormat glFormat;
view.setViewport(new QGLWidget(glFormat));
view.setViewportUpdateMode(QGraphicsView::FullViewportUpdate);
view.setScene(scene);
view.resize(800, 600);
view.setGeometry(
    QStyle::alignedRect(
    Qt::LeftToRight,
    Qt::AlignCenter,
    view.size(),
    a.desktop()->availableGeometry()
));
view.show();
return a.exec&#40;&#41;;

}@

scene.h
@#ifndef SCENE_H
#define SCENE_H

#include <QtGui>
#include <QtOpenGL>

class Scene : public QGraphicsScene
{
Q_OBJECT
public:
Scene(int width, int height);
~Scene();
virtual void drawBackground(QPainter painter, const QRectF &rect);
public slots:
void animate();
void startApp();
protected:
void keyPressEvent(QKeyEvent event);
public:
void initUI();
QGraphicsProxyWidget *proxyDialog, *proxyStartMenu;
QLineEdit *line;
};

#endif // SCENE_H@

scene.cpp
@#include "scene.h"

Scene::Scene(int width, int height)
: QGraphicsScene() {
setSceneRect(0, 0, width, height);
QMetaObject::invokeMethod(this, "startApp", Qt::QueuedConnection);
}

Scene::~Scene(){}

void Scene::startApp() {
initUI();
QTimer::singleShot(0, this, SLOT(animate()));
}

void Scene::initUI() {
proxyDialog = new QGraphicsProxyWidget;
proxyDialog->setWidget(new QWidget());
proxyDialog->setWindowFlags(Qt::Dialog);
proxyDialog->setWindowTitle(QString("Dialog"));
proxyDialog->setVisible(true);
this->addItem(proxyDialog);

proxyStartMenu = new QGraphicsProxyWidget;
proxyStartMenu->setWidget(new QWidget());
proxyStartMenu->setWindowFlags(Qt::Dialog);
proxyStartMenu->setWindowTitle(QString("Menu"));
proxyStartMenu->setVisible(true);
line = new QLineEdit(proxyStartMenu->widget());
line->setGeometry(10,10,100,25);
line->setVisible(true);
this->addItem(proxyStartMenu);

proxyDialog->setGeometry(QRect(40,140,200,100));
proxyStartMenu->setGeometry(QRect(140,40,200,100));

proxyStartMenu->setFocus(Qt::MouseFocusReason);

}

void Scene::animate() {
update();
QTimer::singleShot(10, this, SLOT(animate()));
}

void Scene::drawBackground(QPainter *painter, const QRectF &) {
painter->beginNativePainting();
glClearColor(0.0, 1.0, 1.0, 1.0);
glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
painter->endNativePainting();
}

void Scene::keyPressEvent(QKeyEvent* event) {
if(event->isAutoRepeat()) {
QGraphicsScene::keyPressEvent(event);
} else {
if (event->key() == Qt::Key_F1) {
proxyStartMenu->setFocus();
qDebug() << "F1 pressed, hasFocus: " << proxyStartMenu->hasFocus();
} else {
QGraphicsScene::keyPressEvent(event);
}
}
}@