Fixes #70708

Fixes #70708

Wed Feb  6 23:28:39 2002  Kristian Rietveld  <kris@gtk.org>

        Fixes #70708

        * gtk/gtktreeview.c (gtk_tree_view_get_path_at_pos): we're dealing
        with widget coordinates here, so take the header height into
        account while converting
        (gtk_tree_view_widget_to_tree_coords): take header height into
        account
        (gtk_tree_view_tree_to_widget_coords): ditto
        (gtk_tree_view_get_dest_row_at_pos): we were passing coords
        relative to the tree with _get_path_at_pos, while that function
        wants coords relative to the widget