how to rotate an image...

[sh123]

I want to know how to rotate an image.I have searched the forum but could find what i want.please help.

[xenofanes]

You can use QGraphicsPixmapItem. QGraphicsItem has rotate(angle) method.
This piece of code can be usefull.

QGraphicsScene *scene = new QGraphicsScene();
QGraphicsPixmapItem *pixmapItem = new QGraphicsPixmapItem(QPixmap("image.bmp"));
scene->addItem(pixmapItem);
...
pixmapItem->rotate(15);

QGraphicsScene *scene = new QGraphicsScene();
QGraphicsPixmapItem *pixmapItem = new QGraphicsPixmapItem(QPixmap("image.bmp"));
scene->addItem(pixmapItem);
...
pixmapItem->rotate(15);

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And read the qassistant for further need...

[caduel]

vague question... vague answer...

you can create a QMatrix (or a QTransform) for your rotation angle and then rotate your image (assuming you have a QImage) with QImage::transformed()
HTH