On Fri, May 29, 2009 at 9:20 AM, David Katz
<david@davidkatzconsulting.com>wrote:

> I'm trying to use an rGtkDataFrame to display data
>
and when the user selects
> a row to take some action. I attached a signal:
>
> treeSelection <- gtkTreeViewGetSelection(view)
>
> onSelectionChanged <-
>  function(treeselection,user.obj){
>    str(gtkTreeSelectionGetSelected(treeselection))
>  }
>
> So how do I use the result to identify which row was selected?
>

One way, assuming you have a single selection mode, is to get the
GtkTreeIter of the selected row.

iter <- treeselection$getSelected()

Then get a GtkTreePath describing that GtkTreeIter, using the
GtkTreeModel/RGtkDataFrame:

path <- model$getPath(iter)

Then get the index of the row via:

row <- path$getIndices()

It's a lot of work, but it's a complex framework and RGtk2 is designed as a
low-level binding.

If you're indexing directly into the RGtkDataFrame, you could also do this:

model[treeselection$getSelectedRows()$retval,]

Which would subset the RGtkDataFrame for the selected rows.

Michael


>
> Thanks.
> --
> David Katz
>
> www.davidkatzconsulting.com
>
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