On Thu, 2010-09-30 at 23:02 +0200, ext [email protected] wrote: > Dear all (QML experts, mostly), > > I'm trying to combine a ListView and a PathView using the Package element, > and would like my items to be able to reparent from one to another. > > >From the PathView to the ListView works fine, I can use > >ListView::positionViewAtIndex to prepare the view when switching, and > >animate my items from the path view to the list view. > > However, when I try to do the same from the ListView to the PathView, I run > into problems. I have not found a good way to position the PathView at the > right place that makes the ParentChange actually apply correctly. > > * First I tried modifying the PathView::currentIndex, but the PathView wants > to animate the offset to the new index (and setting the highlightMoveDuration > to 0 just breaks it). > * Then I tried modifying the PathView::offset, but this still causes problems > for the items for which no delegates existed on the PathView. > > I've attached a small example demonstrating the problem. I am using the > latest Qt 4.7 branch. To reproduce: > > * Switch from path to list mode by clicking the left item (possibly after > scrolling the path left/right). > * Notice the items are positioned correctly in the ListView to the right. > * Notice how clicking the items in the ListView moves them back into the > PathView correctly. > * Go back to list state, and now scroll the list a bit before clicking to > make them go back to the PathView > * Notice how the positions get all messed up (items basically get stuck in > the top-left corner) > > I don't really understand how this can happen. It seems to me that modifying > the PathView::offset does not make sure the visible delegates are created and > layed out correctly by the time the ParentChange tries to go into effect. > > Can this be solved somehow, or does PathView need a positionViewAtIndex, just > like the ListView, so that it can be positioned correctly before the > ParentChange happens?
Setting offset should work fine for PathView. I have logged a bug: http://bugreports.qt.nokia.com/browse/QTBUG-14199 Martin. _______________________________________________ Qt-qml mailing list [email protected] http://lists.trolltech.com/mailman/listinfo/qt-qml
