Martin Jones wrote: > On Tue, 20 Apr 2010 07:56:17 pm ext Stephen Kelly wrote: >> Martin Jones wrote: >> > On Mon, 19 Apr 2010 10:09:17 pm ext Stephen Kelly wrote: >> >> In QTreeView, that's a [+] which you can click to expand. >> > >> > You could add a Q_INVOKABLE method to your model to get the child >> > count, similar to the setRoot() method in this example: >> > >> > http://qt.nokia.com/doc/4.7-snapshot/qml- visualdatamodel.html#rootIndex- >> >> prop >> >> >> >> Indeed, however, it gets complicated when an intermediate proxy model >> filters out all the children. >> >> That is common in my case because it is something like a filesystem where >> on one side is the folder structure and on the other side is the files in >> the selected folder. In the view that is showing only the folder >> structure, hasChildren is true only if it has subfolders. Files are >> already filtered out. >> >> First I put a method similar to what you describe in the proxy actually >> sent into the qml environment, but then when I added another proxy I had >> to move the logic to that class. That's not a good solution. >> >> Currently I have an invokable method in a globally accessible application >> object to figure out if the correct proxy hasChildren at a particular >> row. The method will have to be updated if ever the application changes. >> It's a bit too much magic for me, so the best place for a solution is >> further down the stack in Qt. > > We'll add something along the lines of a "hasChildren" property to the > delegate. >
Awesome, thanks. _______________________________________________ Qt-qml mailing list [email protected] http://lists.trolltech.com/mailman/listinfo/qt-qml
