Re: [Java-gnome-developer] GtkTreeModel: getting value from java

[Andrew C. <an...@op...>]

On Mon, 2009-12-21 at 23:33 +0300, Alexey Titov wrote:
> Hello. As I understand, there is no way to get value for GtkTreeModel
> from Java. I have to set all values into TreeStore or ListStore before

TreeStore and ListStore are TreeModels

> use it. Sometimes it rather expensive...

TreeModel is nothing more than what you populate to have things appear
in a TreeView. Don't try to use it as a real data structure. We have the
Java language for that. From the documentation for DataColum:

        "Keep in mind that you do not need to store all your application
        data in the TreeModel. After all, you already have a perfectly
        sound (and infinitely more powerful) means to model and
        represent your data: the Java language you're working from in
        the first place.
        
        You only need to push data into a TreeModel that will be
        directly displayed by a TreeView or that will be used to help
        manage that display (such as using a numeric type as an
        auxiliary sorting index for textual columns that otherwise
        wouldn't order properly).
        
        Quite frequently, however, you will want to take a selection or
        activation event from the TreeView and get back to the Java
        object that where the displayed data came from in the first
        place. This is the role of the other significant column type,
        DataColumnReference."

http://java-gnome.sourceforge.net/4.0/doc/api/org/gnome/gtk/DataColumn.html
	
AfC
Sydney