Re: [Pythoncard-users] Tree control

[Jussi S. <jus...@pp...>]

This is for Ade to answer the question on Sep 11, 2006

No-one has answered your question. I don't know if it is because they 
thought you should be able to figure out yourself. After investigating 
your problem, I at least think so because it took me under a hour from 
the problem to the solution and I've never used the treecontrol nor 
looked at its demos nor the souce code nor the documentation. Here's 
what I did and what I think you should have done also:

1. I looked at the Pythoncard treecontrol demo and its source code. The 
events handled by PythonCard are listed at the beginning of the 
minimaltree code

2. I looked at the wxPython demo finding the treecontrol demo, running 
it and browsing its source code. I found out that the event generated by 
clicking the item text is OnSelChanged.

3. But your original headache was how to find the path to the root. Well 
I had the third and last help item left: wxWidgets documentation. There 
I browsed the wxTreeCtrl documentation looking for something with Parent 
in it. Found GetParent with a note to use GetItemParent instead.

4. Copied the minimaltree example to my own directory and started 
modifying and debuggin it to get what I/you wanted. Copied the 
on_tree_itemExpanding method and modified it to become (after 3-4 
iterations):

    def on_tree_selectionChanged(self, event):
        tree = self.components.tree
        item=event.item
        #obj = int(tree.getItemText(item))
        #print 'selChanged', obj
        if item != self.root:
            listToRoot = []
            while item:
                listToRoot.append(tree.getItemText(item))
                item = tree.GetItemParent(item)
                #print item
            listToRoot.reverse()
            print '_'.join(listToRoot)
        event.skip()

I think this is near enough the thing you wanted, isn't it?