public void TestWalkProperties()
{
Kml kml = new Kml();
kml.Feature = new Folder(); // This will not be added to the Children collection
Assert.That(ElementWalker.Walk(kml).Count(), Is.EqualTo(2));
}
/// <summary>
/// Provides a way to iterate over all children <see cref="Element"/>s
/// contained by this instance.
/// </summary>
/// <param name="element">The class instance.</param>
/// <returns>An IEnumerable<Element> for specified element.</returns>
/// <exception cref="ArgumentNullException">element is null.</exception>
public static IEnumerable <Element> Flatten(this Element element)
{
if (element == null)
{
throw new ArgumentNullException("element");
}
return(ElementWalker.Walk(element));
}
public void TestWalkChildren()
{
const int Depth = 50;
Folder parent = new Folder();
Folder root = parent;
for (int i = 0; i < Depth; ++i)
{
Folder child = new Folder();
parent.AddFeature(child); // Added to the Children collection
parent = child;
}
Assert.That(ElementWalker.Walk(root).Count(), Is.EqualTo(Depth + 1)); // Depth + 1 to allow for root itself
}
public void TestWalkCustomElements()
{
const int Count = 10;
CoordinateCollection coordinates = new CoordinateCollection();
for (int i = 0; i < Count; ++i)
{
coordinates.Add(new Vector());
}
Assert.That(ElementWalker.Walk(coordinates).Count(), Is.EqualTo(1));
// This class uses a private class deriving from ICustomElement as a child
// Make sure it's not included.
ItemIcon icon = new ItemIcon();
icon.State = ItemIconStates.Open | ItemIconStates.Error;
Assert.That(ElementWalker.Walk(icon).Count(), Is.EqualTo(1));
}
/// <summary>
/// Creates a KmlFie from the specified <see cref="Element"/> hierarchy.
/// </summary>
/// <param name="root">The root <c>Element</c> of the file.</param>
/// <param name="duplicates">
/// true to allow duplicate <see cref="KmlObject.Id"/> values (newer
/// values will overwrite existing values); false to throw an exception
/// for duplicate values.
/// </param>
/// <returns>
/// A new KmlFile with the specified <c>Element</c> as the root.
/// </returns>
/// <exception cref="ArgumentNullException">root is null.</exception>
/// <exception cref="InvalidOperationException">
/// A object has already been registered with the same Id and the
/// duplicates argument is set to false.
/// </exception>
public static KmlFile Create(Element root, bool duplicates)
{
Check.IsNotNull(root, nameof(root));
var file = new KmlFile
{
strict = !duplicates,
};
foreach (Element element in ElementWalker.Walk(root))
{
file.OnElementAdded(element);
}
file.Root = root;
return(file);
}
/// <summary>
/// Creates a KmlFie from the specified <see cref="Element"/> hierarchy.
/// </summary>
/// <param name="root">The root <c>Element</c> of the file.</param>
/// <param name="duplicates">
/// true to allow duplicate <see cref="KmlObject.Id"/> values (newer
/// values will overwrite existing values); false to throw an exception
/// for duplicate values.
/// </param>
/// <returns>
/// A new KmlFile with the specified <c>Element</c> as the root.
/// </returns>
/// <exception cref="ArgumentNullException">root is null.</exception>
/// <exception cref="InvalidOperationException">
/// A object has already been registered with the same Id and the
/// duplicates argument is set to false.
/// </exception>
public static KmlFile Create(Element root, bool duplicates)
{
if (root == null)
{
throw new ArgumentNullException("root");
}
KmlFile file = new KmlFile();
file.strict = !duplicates;
foreach (var element in ElementWalker.Walk(root))
{
file.OnElementAdded(element);
}
file.Root = root;
return(file);
}
/// <summary>
/// Provides a way to iterate over all children <see cref="Element"/>s
/// contained by this instance.
/// </summary>
/// <param name="element">The class instance.</param>
/// <returns>An IEnumerable<Element> for specified element.</returns>
/// <exception cref="ArgumentNullException">element is null.</exception>
public static IEnumerable <Element> Flatten(this Element element)
{
Check.IsNotNull(element, nameof(element));
return(ElementWalker.Walk(element));
}