/// <summary>
/// Sets the currently selected tab
/// </summary>
/// <param name="tab"></param>
private void SetSelectedTab(RibbonTab tab)
{
if (tab == _lastSelectedTab) return;
if (_lastSelectedTab != null)
{
_lastSelectedTab.SetSelected(false);
RedrawTab(_lastSelectedTab);
}
if (tab != null)
{
tab.SetSelected(true);
RedrawTab(tab);
}
_lastSelectedTab = tab;
}
