public IndexPropertyObserver(Type propertyContainingType, IndexPropertyPathElement propertyPathElement, XamlNamespaces namespaces)
{
baseObserver = CreateBaseObserver(propertyContainingType, propertyPathElement.PropertyName);
PropertyInfo indexPropertyInfo = baseObserver != null?baseObserver.ValueType.GetDefaultIndexProperty() :
propertyPathElement.PropertyName.IsEmpty ? propertyContainingType.GetDefaultIndexProperty() : propertyContainingType.GetInstanceProperty(propertyPathElement.PropertyName.MemberName);
if (indexPropertyInfo == null)
{
throw new Granular.Exception("Property \"{0}.{1}\" does not have an indexer", propertyContainingType.Name, propertyPathElement.PropertyName.MemberName);
}
if (indexPropertyInfo.GetIndexParameters().Count() != propertyPathElement.IndexRawValues.Count())
{
throw new Granular.Exception("Invalid number of index parameters for \"{0}.{1}\"", indexPropertyInfo.DeclaringType.Name, indexPropertyInfo.Name);
}
indexerObserver = new ClrPropertyObserver(indexPropertyInfo, propertyPathElement.ParseIndexValues(indexPropertyInfo));
indexerObserver.ValueChanged += (sender, oldValue, newValue) => ValueChanged.Raise(this, oldValue, newValue);
if (baseObserver != null)
{
baseObserver.ValueChanged += (sender, oldValue, newValue) => indexerObserver.SetBaseValue(baseObserver.Value);
indexerObserver.SetBaseValue(baseObserver.Value);
}
}
public object ConvertFrom(XamlNamespaces namespaces, Uri sourceUri, object value)
{
return(Size.Parse(value.ToString().Trim()));
}
public object ConvertFrom(XamlNamespaces namespaces, Uri sourceUri, object value)
{
return(new MatrixTransform {
Matrix = Matrix.Parse(value.ToString())
});
}
public object ConvertFrom(XamlNamespaces namespaces, object value)
{
return(new PropertyPathElement(XamlName.FromPrefixedName((string)value, namespaces)));
}
public object ConvertFrom(XamlNamespaces namespaces, object value)
{
return(PropertyPath.Parse((string)value, namespaces));
}
public static PropertyPath Parse(string value, XamlNamespaces namespaces = null)
{
PropertyPathParser parser = new PropertyPathParser(value, namespaces ?? XamlNamespaces.Empty);
return(new PropertyPath(parser.Parse()));
}
public IndexPropertyPathElement(XamlName propertyName, IEnumerable <string> indexRawValues, XamlNamespaces namespaces)
{
this.PropertyName = propertyName;
this.IndexRawValues = indexRawValues;
this.namespaces = namespaces;
}
