/// <summary>
/// Returns TRUE when the receiver and the other object have the same properties.
/// </summary>
/// <param name="other"></param>
/// <returns></returns>
public bool IsEqual(IClone other)
{
//1. make sure that the 'other' object is pointing to a valid object
if (null == other)
{
throw new COMException("Invalid objact.");
}
//2. verify the type of 'other'
if (!(other is ClonableObjClass))
{
throw new COMException("Bad object type.");
}
ClonableObjClass otherClonable = (ClonableObjClass)other;
//test that all ot the object's properties are the same.
//please note the usage of IsEqual when using arcobjects components that
//supports cloning
if (otherClonable.Version == m_version &&
otherClonable.Name == m_name &&
otherClonable.ID == m_ID &&
otherClonable.ManagedArray == m_arr &&
((IClone)otherClonable.SpatialReference).IsEqual((IClone)m_spatialRef) &&
((IClone)otherClonable.Point).IsEqual((IClone)m_point))
{
return(true);
}
return(false);
}
public void Test()
{
Console.WriteLine("Creating an instance of the clonable object.");
ClonableObjClass cloneable = new ClonableObjClass();
Console.WriteLine("Assigning properties");
cloneable.SpatialReference = CreateGeographicSpatialReference();
cloneable.Name = "test 1";
cloneable.Point = new PointClass();
cloneable.Point.PutCoords(35.02,31.4);
cloneable.ManagedArray = new ArrayList();
cloneable.ManagedArray.Add("One");
cloneable.ManagedArray.Add("Two");
cloneable.ManagedArray.Add("Three");
Console.WriteLine("New object's properties");
Console.WriteLine("-----------------------");
Console.WriteLine("Name: " + cloneable.Name);
Console.WriteLine("ID: " + cloneable.ID.ToString());
Console.WriteLine("Version: " + cloneable.Version.ToString());
Console.WriteLine("Array values: ");
foreach (object obj in cloneable.ManagedArray)
{
Console.WriteLine((string)obj);
}
Console.WriteLine("Spatial Reference parameters:");
Console.WriteLine("Name: " + cloneable.SpatialReference.Name);
IGeographicCoordinateSystem gcs = (IGeographicCoordinateSystem)cloneable.SpatialReference;
Console.WriteLine("Alias: " + gcs.Alias);
Console.WriteLine("Datum: " + gcs.Datum.Name);
Console.WriteLine("");
Console.WriteLine("Cloning the object...");
ClonableObjClass clonee = cloneable.Clone() as ClonableObjClass;
Console.WriteLine("");
Console.WriteLine("Cloned object's properties:");
Console.WriteLine("---------------------------");
Console.WriteLine("Name: " + clonee.Name);
Console.WriteLine("ID: " + clonee.ID.ToString());
Console.WriteLine("Version: " + clonee.Version.ToString());
Console.WriteLine("Array values: ");
foreach (object obj in clonee.ManagedArray)
{
Console.WriteLine((string)obj);
}
Console.WriteLine("Spatial Reference parameters:");
Console.WriteLine("Name: " + clonee.SpatialReference.Name);
gcs = (IGeographicCoordinateSystem)clonee.SpatialReference;
Console.WriteLine("Alias: " + gcs.Alias);
Console.WriteLine("Datum: " + gcs.Datum.Name);
Console.WriteLine("");
}
/// <summary>
/// Clones the receiver and assigns the result to clonee.
/// <returns></returns>
public IClone Clone()
{
//create a new instance of the object
ClonableObjClass obj = new ClonableObjClass();
//assign the properties of the new object with the current object's properties.
//according to each 'Ref' property, the user need to decide whether to use deep cloning
//or shallow cloning.
obj.Assign(this);
return((IClone)obj);
}
/// <summary>
/// Assigns the properties of src to the receiver.
/// </summary>
/// <param name="src"></param>
public void Assign(IClone src)
{
//1. make sure that src is pointing to a valid object
if (null == src)
{
throw new COMException("Invalid objact.");
}
//2. make sure that the type of src is of type 'ClonableObjClass'
if (!(src is ClonableObjClass))
{
throw new COMException("Bad object type.");
}
//3. assign the properties of src to the current instance
ClonableObjClass srcClonable = (ClonableObjClass)src;
m_name = srcClonable.Name;
m_version = srcClonable.Version;
m_ID = new Guid(srcClonable.ID.ToString());
//don't clone the spatial reference, since in this case we want both object to
//reference the same spatial reference (for example like features in a featureclass
//which share the same spatial reference)
m_spatialRef = srcClonable.SpatialReference;
//clone the point. Use deep cloning
if (null == srcClonable.Point)
{
m_point = null;
}
else
{
IObjectCopy objectCopy = new ObjectCopyClass();
object obj = objectCopy.Copy((object)srcClonable.Point);
m_point = (IPoint)obj;
}
m_arr = (ArrayList)srcClonable.ManagedArray.Clone();
}
/// <summary>
/// Clones the receiver and assigns the result to clonee.
/// <returns></returns>
public IClone Clone()
{
//create a new instance of the object
ClonableObjClass obj = new ClonableObjClass();
//assign the properties of the new object with the current object's properties.
//according to each 'Ref' property, the user need to decide whether to use deep cloning
//or shallow cloning.
obj.Assign(this);
return (IClone)obj;
}
