Hi Massimo, We had this discussion recently (off the mailing list), regarding big lists of items in media explorer (https://github.com/media-explorer/media-explorer ).
As a short term solution, the Mx toolkit has recently integrated an ActorManager : https://github.com/clutter-project/mx/blob/master/mx/mx-actor-manager.h Here are 2 examples of usage of MxActorManager : https://github.com/media-explorer/media-explorer/blob/master/mex/mex-content-proxy.c#L184 https://github.com/media-explorer/media-explorer/blob/master/mex/mex-explorer.c#L429 The idea is to prevent to block the main loop (and so the whole UI) when adding 1000+ items, by using an idle function. Of course this is just a workaround, and the right solution would be to not create more actors than what you see on the screen (or a factor of that number), and remap actors that just disappeared to a new item further up/down the list while you're scrolling. The downside of this solution is that it means rewriting quite a few containers to handle that new way dealing with huge list. Regards, -- Lionel On Wed, 2011-06-15 at 23:36 +0200, Massimo Cora' wrote: > Hi, > > let's say that I have 1000+ items (ClutterActors) to insert in a > vertical MxListView with kinetic scrolling. Right now they're added all > at once, which isn't the best option for my case because it slows done > the painting of the whole widget. > I was wondering if using an async version of model_changed_cb () [on > mx-list-view.c] could speed up the things. In particular I'd like to put > async the call to clutter_container_add_actor (). > Before adventuring in complex things I'd like to ask what you think > about this. > BTW I already tried the way to add chunks via on_idle functions, but > they weren't fluid at all, blocking the whole user interface for some > moments. > > what are you suggestions? > > Thanks and Regards, > Massimo > > _______________________________________________ > clutter-app-devel-list mailing list > [email protected] > http://lists.clutter-project.org/listinfo/clutter-app-devel-list _______________________________________________ clutter-app-devel-list mailing list [email protected] http://lists.clutter-project.org/listinfo/clutter-app-devel-list
