Cannot assign to pixmap during painting

[fanatos]

How can i fix this problem ?


QPixmap *bImage = new QPixmap(":/Tromso1.jpg");

QGraphicsPixmapItem *image;

image->setPixmap(QPixmap(bImage->scaled(QSize(200,160), Qt::KeepAspectRatio)));

scene.addItem(image);

[Lykurg]

What error do you get? And there is no need to create a temporary pixmap on the heap. And you are surely looking for [CODE][/CODE].

[fanatos]

Error msg that i get is fallowing:

QPixmap:perator=: Cannot assign to pixmap during painting

I started C++ and Qt just few weeks ago.

QPixmap *bImage = new QPixmap(":/Tromso1.jpg");
 
QGraphicsPixmapItem *image;
 
image->setPixmap(QPixmap(bImage->scaled(QSize(200,160), Qt::KeepAspectRatio)));
 
scene.addItem(image);

QPixmap *bImage = new QPixmap(":/Tromso1.jpg");

QGraphicsPixmapItem *image;

image->setPixmap(QPixmap(bImage->scaled(QSize(200,160), Qt::KeepAspectRatio)));

scene.addItem(image);

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[Lykurg]

Whats about

image->setPixmap(bImage->scaled(QSize(200,160), Qt::KeepAspectRatio));

image->setPixmap(bImage->scaled(QSize(200,160), Qt::KeepAspectRatio));

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or

QPixmap bImage(":/Tromso1.jpg");
bImage.scale(QSize(200,160), Qt::KeepAspectRatio);
image->setPixmap(bImage);

QPixmap bImage(":/Tromso1.jpg");
bImage.scale(QSize(200,160), Qt::KeepAspectRatio);
image->setPixmap(bImage);

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[fanatos]

same problem...

i was googling and found that i am not the only one with this problem but didn't see any solutions to this.

[fanatos]

Also, i do this inside constructor.

[aamer4yu]

Where are you creating image ?
QGraphicsPixmapItem *image = new QGraphicsPixmapItem();

[fanatos]

i found what was the problem

[Songg]

In my case, I called scene()->clear() before setPixmap(). So, all pointers to items becomes invalid;

[d_stranz]

I am sure the original poster is delighted to see this answer, 5 1/2 years later.