protected virtual void OnUpButtonClicked(object sender, System.EventArgs e)
{
Gtk.TreeIter itr;
Gtk.TreeModel model;
if (mapView.Selection.GetSelected(out model, out itr))
{
MapDescription map = (MapDescription)model.GetValue(itr, 0);
int index = m_maps.IndexOf(map);
if (index > 0) // Can't move the first element up
{
int[] order = new int[m_maps.Capacity];
for (int i = 0; i < m_maps.Capacity; i++)
{
order[i] = i;
}
order[index] = index - 1;
order[index - 1] = index;
m_mapModel.Reorder(order);
// due double data holding, not fine but it works
m_maps.RemoveAt(index);
m_maps.Insert(index - 1, map);
upButton.Sensitive = m_maps.IndexOf(map) > 0;
downButton.Sensitive = m_maps.IndexOf(map) < (m_maps.Count - 1);
}
}
}
