Till Oliver Knoll <till.oliver.kn...@gmail.com> wrote .. > 2012/6/7 Waitman Gobble <uzi...@da3m0n8t3r.com>: > > ... > > When I load an image into QGraphicsScene and add the scene to QGraphicsView, > the QGraphicsView expands to image size, but if I clear and load another image > which is smaller, it stays the same size. > > That is by design and documented: > > http://qt-project.org/doc/qt-4.8/qgraphicsscene.html#sceneRect-prop > > "...largest bounding rect of all items on the scene since the scene > was created (i.e., a rectangle that grows when items are added to or > moved in the scene, but never shrinks)." > > Try setting it to a "null" QRectF after removing the previous and > loading the new image: to my understanding the next call to > sceneRect() should then re-calculate the bounding rectangle, which > should then be just as large as the new image item in the scene. > > Cheers, Oliver > _______________________________________________ > Interest mailing list > Interest@qt-project.org > http://lists.qt-project.org/mailman/listinfo/interest
Thank you. This seems to work: QPixmap pm(path); gs->clear(); gs = new QGraphicsScene(this); //new gs->addPixmap(pm); gv->setScene(gs); gv->update(); -- Waitman Gobble San Jose California USA
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