Custom border around QGraphicsView

Question

I have this image :

I want the border of my GraphicsViewbecome exactly like this image.

(consider the bellow image I want the top white rectangle become that shape)

I inherit a class from QGraphicsView and tried drawing this image in both drawBackground and paintEvent but none of them works.

My code :

.h file

class GraphicsTraxSuggestionView : public QGraphicsView {
    Q_OBJECT
public:
    GraphicsTraxSuggestionView(QWidget* widget);

protected:
//  void paintEvent(QPaintEvent *event);
    void drawBackground(QPainter *p, const QRectF &rect);
private:

}; 

.cpp file

GraphicsTraxSuggestionView::GraphicsTraxSuggestionView(QWidget* widget)
    : QGraphicsView(widget)
{
    //setFrameShadow(QFrame::Raised);
    setFrameStyle(QFrame::NoFrame);
    setStyleSheet("QGraphicsView { border-style: none; }");
}
void GraphicsTraxSuggestionView::drawBackground(QPainter *painter, const QRectF &rect)
{
    painter->drawImage(rect, QImage("suggestionBorder.png"));
}

result of my code : https://i.sstatic.net/r0waP.png

Any suggestion ?

Answer 1

I tried setMask() and now it works fine .

GraphicsTraxSuggestionView::GraphicsTraxSuggestionView(QWidget* widget,QGraphicsScene* scene)
    : QGraphicsView(widget),
    scene_(scene)
{
    setStyleSheet("background-color: transparent;");

    QPixmap myPixmap = QPixmap(":/Game/Tiles//suggestionBorder.png").scaled
        (scene_->sceneRect().size().width(),scene_->sceneRect().size().height());
    setMask(myPixmap.mask());
    setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
    setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
}

void GraphicsTraxSuggestionView::drawBackground(QPainter *painter, const QRectF &rect)
{   
    painter->drawImage(scene_->sceneRect(), QImage(":/Game/Tiles//suggestionBorder.png"));
}

result :