On 9/26/2014 8:33 AM, William Hallatt wrote: > Hi everyone, > > I have just started playing with Qt’s MVC classes and have created a > hierarchical model to display in a QTreeView. Some of the nodes, > however, have a fair amount of children and when I expand these nodes > (or, heaven forbid, expandAll), the app hangs for a remarkably long time.
I encountered a serious performance problem with a QTreeView when using a custom style that had dotted lines for the connecting lines, but on Mac OS X only. Otherwise, I haven't had any performance issues with deep graphs at all. Make sure your model is as efficient as possible though. _______________________________________________ Interest mailing list Interest@qt-project.org http://lists.qt-project.org/mailman/listinfo/interest
