/// <summary>
/// Sets the Marked state for all <see cref="PlanarGraphObject"/>s
/// in an <see cref="IEnumerator"/>.
/// </summary>
/// <param name="i">the Iterator to scan
/// </param>
/// <param name="marked">
/// The state to set the Marked flag to.
/// </param>
public static void SetMarked(IEnumerator i, bool marked)
{
while (i.MoveNext())
{
PlanarGraphObject comp = (PlanarGraphObject)i.Current;
comp.Marked = marked;
}
}
/// <summary>
/// Sets the Visited state for all <see cref="PlanarGraphObject"/>s
/// in an <see cref="IEnumerator"/>.
///
/// </summary>
/// <param name="i">
/// The <see cref="IEnumerator"/> to scan
/// </param>
/// <param name="visited">
/// The state to set the visited flag to.
/// </param>
public static void SetVisited(IEnumerator i, bool visited)
{
while (i.MoveNext())
{
PlanarGraphObject comp = (PlanarGraphObject)i.Current;
comp.Visited = visited;
}
}
/// <summary>
/// Finds the first <see cref="PlanarGraphObject"/> in a
/// <see cref="IEnumerator"/> set which has the specified
/// visited state.
/// </summary>
/// <param name="i">
/// An <see cref="IEnumerator"/> of GraphComponents
/// </param>
/// <param name="visitedState">
/// The visited state to test.
/// </param>
/// <returns>
/// The first component found, or <code>null</code> if none found
/// </returns>
public static PlanarGraphObject GetComponentWithVisitedState(
IEnumerator i, bool visitedState)
{
while (i.MoveNext())
{
PlanarGraphObject comp = (PlanarGraphObject)i.Current;
if (comp.Visited == visitedState)
{
return(comp);
}
}
return(null);
}
