On Thu, Jan 10, 2013 at 8:06 PM, Charley Bay <[email protected]> wrote: > Alberto sayeth: >> >> > Hi all! >> > I'd like to make C++ models more usable from QML; in the net there >> > are several blog posts illustrating how to achieve that, but IMHO it >> > would be better if at least some of these handy features were in >> > QAbstractListModel itself: >> > >> > - "count" property >> > - "get(index)" invocable method, returning a QVariantMap mapping all the >> > roles to their data for the specified index > > > Alan respondeth: >> >> +1 from me, those would clearly make it more QML-friendly. >> >> > Also, though not very often requested, we could add: >> > - "remove(index)" which just calls QAbstractItemModel::removeRow() >> > - "QList<QVariant> items(const QString &role)", which returns the data >> > for the role "role" for all items. >> >> I'm on the fence about adding those. Since they wouldn't be commonly >> used, maybe it would be better to wait until there's time for a more >> holistic 'models in QML' update (which likely means waiting a long >> while, but eventually QML and QtQuick will need to deal with the issue >> of full tree model support). >> >> > The implementation for the above is fairly trivial, so I wonder if >> > there's some other reasons why it hasn't been done or if it's just that >> > no one did and a patch is welcome. >> >> To my knowledge it's the latter. There's a lot of Qt API which could >> be made more QML friendly, especially in this way (just adding >> properties and convenience functions, for when a user subclass is >> exposed to QML). > > > Funny this should be posted -- I'm coding a "wrapper" for a bunch of > app-specific QML/QAIM right now. > > I assume we are all referencing Chris' blog post from two years ago: > > http://cdumez.blogspot.com/2010/11/how-to-use-c-list-model-in-qml.html > > ...and Benoît's referencing blog from a year ago with some "extensions": > > http://bsauts-en.blogspot.com/2011/09/listmodel-in-c-exposed-to-qml.html > > ...and stuff like QML "read/write (role)" updates: > > http://qt-project.org/forums/viewthread/21787/ > > ...and making a "model" a property of an item within another "model": > > http://qt-project.org/forums/viewthread/6906 > > There's not tons of C++QAIM/QML blog posts out there, so please jump in if > you know of others.
<snip> Jumping in here. I don't want to "advertise" my blog, but since you asked for others, here is mine [1]. If i'm posting it's quite often about QML with some C++ wrapper stuff. I should probably post more since i know a lot more QML then you can see on my blog. [1] http://kdeblog.mageprojects.com/ _______________________________________________ Development mailing list [email protected] http://lists.qt-project.org/mailman/listinfo/development
