How to achieve showAll ?

[wysota]

fitInView(scene()->itemsBoundingRect(), Qt::KeepAspectRatio);

fitInView(scene()->itemsBoundingRect(), Qt::KeepAspectRatio);

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[Gopala Krishna]

fitInView(scene()->itemsBoundingRect(), Qt::KeepAspectRatio);

fitInView(scene()->itemsBoundingRect(), Qt::KeepAspectRatio);

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Thanks for the answer. But scene()->itemsBoundingRect() does the same thing I'm doing now (OR'ing sceneBoundingRects). Unfortunately I still experience above said problems.

[Gopala Krishna]

Problem solved!!!

The problem was with the size of scene rect. The scene rect was smaller than the viewport rect. After setting this right, it works without any problem.

[sincnarf]

what exactly did you do? you made the scene size equal or greater than the view size?

[marcel]

Equal. Setting it larger will cause the view to add scrollbars.