How to add a picture to a Graphicsview

[Malek]

Hello
My question today is:
How to add a picture to a Graphicsview .
I want to make it in the same size of Graphicsview.
Or ,if possible, I want to make it zoom-able.

Regards,

[Lykurg]

QGraphicsScene::addPixmap().

[Urthas]

Or, you can instantiate a QGraphicsPixmapItem and give it to QGraphicsScene::addItem(). To be clear, you don't add anything to a QGraphicsView, which is nothing more than a "porthole", if you like, onto the QGraphicsScene, which contains all your pictures etc.

[Malek]

Thanks Lykurg .Thanks Urthas.

My Partner has been found it.

void MainWindow::on_pushButton_clicked()
{
    QGraphicsScene *scene = new QGraphicsScene();
    QPixmap m("/home/MALEK/QT-Creator/PROJECTs/soso/bomb.jpeg");
    scene->setBackgroundBrush(m.scaled(100,100,Qt::IgnoreAspectRatio,Qt::SmoothTransformation));
 
    ui->graphicsView->setScene(scene);
}

void MainWindow::on_pushButton_clicked()
{
    QGraphicsScene *scene = new QGraphicsScene();
    QPixmap m("/home/MALEK/QT-Creator/PROJECTs/soso/bomb.jpeg");
    scene->setBackgroundBrush(m.scaled(100,100,Qt::IgnoreAspectRatio,Qt::SmoothTransformation));

    ui->graphicsView->setScene(scene);
}

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}

But We still don't Know How to make it in the same size of white rectangle.And how to make it zoom-able.


Thank you very much .

[Lykurg]

You can subclass QGraphicsView and in its paintEvent draw your picture scaled to the bounding rect.

[aamer4yu]

Check the 40000 chips demo in Qt Demos.. you will get an idea how to zoom in / zoom out..