I have a question about multiple views for a particular model in PyQt.
Currently, I have a TreeView setup to display a model inheriting from StandardItemModel. There are three types of StandardItems in the model: Alpha, Beta, Gamma. They are parented in the TreeView like so
+ Alpha
|
\------+ Beta
| |
| \------+ Gamma
| \------+ Gamma
| \------+ Gamma
\------+ Beta
| |
| \------+ Gamma
| \------+ Gamma
| \------+ Gamma
Currently, I only have the Alpha and Beta levels shown in a TreeView. What I'd like is for another TreeView to populate with Gamma values depending on which Beta object I have selected in the first View.
I've figured that I can do this with setRootIndex(), and just check if the selected item at the index in the first TreeView is an instance of the Gamma item class. However, this only happens when I have selected a Beta item in the first TreeView, otherwise, the second TreeView just shows everything.
How would I make sure that the second TreeView only populates when a Gamma item in the first TreeView is selected?
