Re: [Java-gnome-developer] list of visible rows in table, combobox and etc.

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

On Tue, 2009-12-08 at 22:26 +0300, Alexey Titov wrote:
> I have a table with many rows. How can I know which rows are currently
> visible?

Hm. Not sure.

GTK seems to have a gtk_tree_view_get_visible_range(),
http://library.gnome.org/devel/gtk/stable/GtkTreeView.html#gtk-tree-view-get-visible-range
does that do what you want? If so, you might try writing a binding for
it as TreeView's getVisibleRangeStart() and getVisibleRangeEnd().

> When scrolling occurs or table resizes new rows becomes
> visible.

If you want to pay attention to scrolling, you'd can hook up to the
Adjustment.ValueChanged signal via TreeView's getVAdjustment(),
http://java-gnome.sourceforge.net/4.0/doc/api/org/gnome/gtk/TreeView.html#getVAdjustment()
I've used that very successfully in other situations.

And, of course, you can ask a Widget what Allocation it has been given,
though that's not really what you're after.
http://java-gnome.sourceforge.net/4.0/doc/api/org/gnome/gtk/Widget.html#getAllocation()

AfC
Sydney