[cells-gtk-devel] tree-view children

[ΜΑΡΓΙΟΥΛΑΣ ΒΑΣΙΛΕΙΟΣ]

>Peter Denno <peter.denno at nist.gov>:

> Hi,
> 
> Does anyone here know how the tree-view widget in the example 
> test-gtk/test-tree-view.lisp gets its children? I'd expect that you'd have to
> 
> supply it with a function which takes an element of the tree and returns a 
> list of its children. 

:items initarg takes a list of objects of type family
(see doc/01-Cell-basics.lisp in cells for family documentation)

Objects which subclass family have kids.
In tree-view each kid is a leave (have no kids) or a subtree.

So to use tree-view construct a list of one or more 'root' objects of type 
family.
In example code tree-view is used to show the widget hierarchy of demo app
All widgets in cells-gtk subclass family and gtk-app is the main window.

> By the name of it, :items-factory seems to fit that 
> description, but apparently it only provides the printed representation.

Right, it only provides the printed representation.

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