public void Activate()
{
IDesktopWindow desktopWindow = this.Context.DesktopWindow;
// check if a layout component is already displayed
if (Shelves.ContainsKey(desktopWindow))
{
Shelves[desktopWindow].Activate();
}
else
{
LaunchShelf(desktopWindow, new CineApplicationComponent(desktopWindow), ShelfDisplayHint.DockFloat);
}
}