/// <summary>
/// Informs the helper that the memento supporter that wraps this helper has gained a child.
/// </summary>
/// <param name="child">The child.</param>
public void AddChild(ISupportsMementos child)
{
if (child.ReportsOwnChanges)
{
if (m_children == null)
{
m_children = new ArrayList();
}
if (!m_children.Contains(child))
{
m_children.Add(child);
child.MementoChangeEvent += m_childChangeHandler;
}
}
else
{
if (m_problemChildren == null)
{
m_problemChildren = new ArrayList();
}
if (!m_problemChildren.Contains(child))
{
m_problemChildren.Add(child);
}
}
ReportChange();
}
/// <summary>
/// Informs the helper that the memento supporter that wraps this helper has lost a child.
/// </summary>
/// <param name="child">The child.</param>
public void RemoveChild(ISupportsMementos child)
{
if (m_children.Contains(child))
{
child.MementoChangeEvent -= m_childChangeHandler;
}
m_children?.Remove(child);
m_problemChildren?.Remove(child);
}
/// <summary>
/// Loads the contents of this Memento into the provided object.
/// </summary>
/// <param name="ism">The object to receive the contents of the memento.</param>
public void Load(ISupportsMementos ism)
{
Substance substance = (Substance)ism;
substance.m_mass = m_mass;
substance.Temperature = m_temperature;
substance.m_type = m_materialType;
if (m_matlSpecs != null)
{
substance.SetMaterialSpecs(m_matlSpecs);
}
else
{
substance.ClearMaterialSpecs();
}
OnLoadCompleted?.Invoke(this);
}
/// <summary>
/// Ascertains equality between this one and the other one.
/// </summary>
/// <param name="otherOne">The other one.</param>
/// <returns><c>true</c> if this one and the other one are equal, <c>false</c> otherwise.</returns>
public bool Equals(ISupportsMementos otherOne)
{
Substance otherSubstance = otherOne as Substance;
if (otherSubstance == null)
{
return(false);
}
if (m_materialSpecs != null && otherSubstance.m_materialSpecs == null)
{
return(false);
}
if (m_materialSpecs == null && otherSubstance.m_materialSpecs != null)
{
return(false);
}
if (m_materialSpecs != null)
{
if (otherSubstance.m_materialSpecs != null && m_materialSpecs.Count != otherSubstance.m_materialSpecs.Count)
{
return(false);
}
foreach (DictionaryEntry de in m_materialSpecs)
{
if (otherSubstance.m_materialSpecs != null && !otherSubstance.m_materialSpecs.Contains(de.Key))
{
return(false);
}
if (otherSubstance.m_materialSpecs != null && !de.Value.Equals(otherSubstance.m_materialSpecs[de.Key]))
{
return(false);
}
}
}
else if (otherSubstance.m_materialSpecs != null)
{
return(false);
}
return(m_mass.Equals(otherSubstance.m_mass) && Temp.Equals(otherSubstance.Temp) && m_type.Equals(otherSubstance.m_type));
}
/// <summary>
/// Called by the memento supporter that wraps this helper, to let it know that a change has occurred in its internal state.
/// </summary>
/// <param name="iss">The memento supporter which has changed.</param>
private void ReportChange(ISupportsMementos iss)
{
m_hasChanged = true;
MementoChangeEvent?.Invoke(iss);
}
/// <summary>
/// Initializes a new instance of the <see cref="MementoHelper"/> class.
/// </summary>
/// <param name="iss">The memento supporter that wraps this helper.</param>
/// <param name="wrappeeReportsOwnChanges">if set to <c>true</c> the memento supporter is able to report its own changes.</param>
public MementoHelper(ISupportsMementos iss, bool wrappeeReportsOwnChanges)
{
m_wrappeeReportsOwnChanges = wrappeeReportsOwnChanges;
m_iss = iss;
m_childChangeHandler = ReportChange;
}
