/// <summary>
/// Creates a <see cref="PriorityValue"/> for a <see cref="PerspexProperty"/>.
/// </summary>
/// <param name="property">The property.</param>
/// <returns>The <see cref="PriorityValue"/>.</returns>
private PriorityValue CreatePriorityValue(PerspexProperty property)
{
Func <object, object> coerce = null;
if (property.Coerce != null)
{
coerce = v => property.Coerce(this, v);
}
PriorityValue result = new PriorityValue(property.Name, property.PropertyType, coerce);
result.Changed.Subscribe(x =>
{
object oldValue = (x.Item1 == PerspexProperty.UnsetValue) ?
this.GetDefaultValue(property) :
x.Item1;
object newValue = (x.Item2 == PerspexProperty.UnsetValue) ?
this.GetDefaultValue(property) :
x.Item2;
if (!object.Equals(oldValue, newValue))
{
this.RaisePropertyChanged(property, oldValue, newValue, (BindingPriority)result.ValuePriority);
this.Log().Debug(
"Value of {0}.{1} (#{2:x8}) changed from {3} to {4}",
this.GetType().Name,
property.Name,
this.GetHashCode(),
oldValue,
newValue);
}
});
return(result);
}
