/**
* Gets both iters from the provided ListStore obj based on the passed TreePath object(the selected row)
*/
private bool getPrevIterFromSelection(out Gtk.TreeIter selectedIter, out Gtk.TreeIter prevIter,
Gtk.TreePath selectedRow, Gtk.ListStore listModel)
{
listModel.GetIter(out selectedIter, selectedRow);
selectedRow.Prev();
listModel.GetIter(out prevIter, selectedRow);
return(prevIter.Stamp != 0 && !prevIter.Equals(selectedIter));
}
protected virtual void OnButtonUpClicked(object sender, System.EventArgs e)
{
Gtk.TreePath[] paths = engineList.Selection.GetSelectedRows();
if (paths.Length > 0)
{
Gtk.TreePath p = paths [0];
Gtk.TreeIter it1, it2;
engineStore.GetIter(out it2, p);
if (p.Prev() && engineStore.GetIter(out it1, p))
{
engineStore.Swap(it1, it2);
UpdatePriorityButtons();
}
}
}
void UpdatePriorityButtons()
{
Gtk.TreePath[] paths = engineList.Selection.GetSelectedRows();
if (paths.Length > 0)
{
Gtk.TreePath p = paths [0];
Gtk.TreeIter it;
engineStore.GetIter(out it, p);
buttonDown.Sensitive = engineStore.IterNext(ref it);
buttonUp.Sensitive = p.Prev();
}
else
{
buttonDown.Sensitive = buttonUp.Sensitive = false;
}
}