public PropTypedBase(PropNameType propertyName, bool typeIsSolid, IPropTemplate <T> template)
{
PropertyName = propertyName;
TypeIsSolid = typeIsSolid;
ValueIsDefined = false;
_template = template;
}
public PropTypedBase(PropNameType propertyName, T initalValue, bool typeIsSolid, IPropTemplate <T> template)
{
PropertyName = propertyName;
_value = initalValue;
TypeIsSolid = typeIsSolid;
ValueIsDefined = true;
_template = template;
}
public IPropTemplate GetOrAdd(IPropTemplate propTemplate)
{
ReportCacheHit(propTemplate);
IPropTemplate result = _cache.GetOrAdd(propTemplate);
return(result);
}
public PropNoStore(PropNameType propertyName, bool typeIsSolid, IPropTemplate <T> template)
: base(propertyName, typeIsSolid, template)
{
if (template.StorageStrategy == PropStorageStrategyEnum.Internal)
{
throw new InvalidOperationException($"This implementation of IProp<T> does not support the {nameof(PropStorageStrategyEnum.Internal)} StorageStrategy.");
}
_haveFetchedValue = false;
}
public CViewProp(PropNameType propertyName, IProvideAView viewProvider, IPropTemplate <ListCollectionView> template)
: base(propertyName, typeIsSolid: true, template: template)
{
_viewProvider = viewProvider;
if (_viewProvider != null)
{
// TODO: Make this a weak event subscription.
_viewProvider.ViewSourceRefreshed += OurViewProviderGotRefreshed;
}
}
protected virtual IPropTemplate <T> GetPropTemplate <T>
(
PropKindEnum propKindEnum,
PropStorageStrategyEnum storageStrategy,
Func <T, T, bool> comparer,
bool comparerIsRefEquality,
Func <string, T> getDefaultVal
)
{
// Supply a comparer, if one was not supplied by the caller.
bool comparerIsDefault;
if (comparer == null)
{
comparer = EqualityComparer <T> .Default.Equals;
comparerIsDefault = true;
}
else
{
comparerIsDefault = false;
}
bool defaultValFuncIsDefault;
// Use the Get Default Value function supplied or provided by this Prop Factory.
if (getDefaultVal == null)
{
getDefaultVal = ValueConverter.GetDefaultValue <T>;
defaultValFuncIsDefault = true;
}
else
{
defaultValFuncIsDefault = false;
}
IPropTemplate <T> propTemplateTyped = new PropTemplateTyped <T>
(
propKindEnum,
storageStrategy,
this.GetType(),
comparerIsDefault,
comparerIsRefEquality,
comparer,
getDefaultVal,
defaultValFuncIsDefault
);
IPropTemplate <T> existingEntry = (IPropTemplate <T>)DelegateCacheProvider.PropTemplateCache.GetOrAdd(propTemplateTyped);
return(existingEntry);
}
private void ReportCacheHit(IPropTemplate propTemplate)
{
lock (_sync)
{
if (!_cache.ContainsKey(propTemplate))
{
System.Diagnostics.Debug.WriteLine($"Adding a new PropTemplate for type = {propTemplate.Type}; kind = {propTemplate.PropKind}.");
}
else
{
System.Diagnostics.Debug.WriteLine($"Using existing PropTemplate for type = {propTemplate.Type}; kind = {propTemplate.PropKind}.");
}
}
}
public override IProp <T> CreateWithNoValue <T>
(
PropNameType propertyName,
object extraInfo,
PropStorageStrategyEnum storageStrategy,
bool typeIsSolid,
Func <T, T, bool> comparer,
bool comparerIsRefEquality,
Func <string, T> getDefaultValFunc
)
{
IPropTemplate <T> propTemplate = GetPropTemplate <T>(PropKindEnum.Prop, storageStrategy, comparer, comparerIsRefEquality, getDefaultValFunc);
IProp <T> prop;
switch (storageStrategy)
{
case PropStorageStrategyEnum.Internal:
{
// Regular Prop with Internal Storage -- Just don't have a value as yet.
prop = new Prop <T>(propertyName, typeIsSolid, propTemplate);
break;
}
case PropStorageStrategyEnum.External:
{
// Create a Prop that uses an external storage source.
prop = new PropExternStore <T>(propertyName, extraInfo, typeIsSolid, propTemplate);
break;
}
case PropStorageStrategyEnum.Virtual:
{
// This is a Prop that supplies a Virtual (aka Caclulated) value from an internal source or from LocalBindings
// This implementation simply creates a Property that will always have the default value for type T.
prop = new PropNoStore <T>(propertyName, typeIsSolid, propTemplate);
break;
}
default:
{
throw new InvalidOperationException($"{storageStrategy} is not supported or is not recognized.");
}
}
return(prop);
}
public override ICProp <CT, T> CreateWithNoValue <CT, T>
(
PropNameType propertyName,
object extraInfo,
PropStorageStrategyEnum storageStrategy,
bool typeIsSolid,
Func <CT, CT, bool> comparer
)
{
// TODO: Get a real value for comparerIsReqEquality
bool comparerIsRefEquality = false;
IPropTemplate <CT> propTemplate = GetPropTemplate <CT>(PropKindEnum.ObservableCollection, storageStrategy, comparer, comparerIsRefEquality, getDefaultVal: null);
ICProp <CT, T> prop = new CProp <CT, T>(propertyName, typeIsSolid, propTemplate);
return(prop);
}
public bool Equals(IPropTemplate other)
{
if (other == null)
{
return(false);
}
if (PropKind == other.PropKind &&
EqualityComparer <Type> .Default.Equals(Type, other.Type) &&
StorageStrategy == other.StorageStrategy &&
DefaultValFuncIsDefault == other.DefaultValFuncIsDefault &&
ComparerIsDefault == other.ComparerIsDefault &&
ComparerIsRefEquality == other.ComparerIsRefEquality)
{
if (!DefaultValFuncIsDefault)
{
if (!ReferenceEquals(GetDefaultValFuncProxy, other.GetDefaultValFuncProxy))
{
return(false);
}
}
else
{
if (!EqualityComparer <Type> .Default.Equals(PropFactoryType, other.PropFactoryType))
{
return(false);
}
}
if (!ComparerIsDefault && !ComparerIsRefEquality)
{
return(ReferenceEquals(ComparerProxy, other.ComparerProxy));
}
else
{
return(true);
}
}
else
{
return(false);
}
}
public override IProp <T> Create <T>
(
T initialValue,
PropNameType propertyName,
object extraInfo,
PropStorageStrategyEnum storageStrategy,
bool typeIsSolid,
Func <T, T, bool> comparer,
bool comparerIsRefEquality,
Func <string, T> getDefaultValFunc
)
{
IPropTemplate <T> propTemplate = GetPropTemplate <T>(PropKindEnum.Prop, storageStrategy, comparer, comparerIsRefEquality, getDefaultValFunc);
propTemplate.PropCreator = CookedScalarPropCreator <T>;
IProp <T> prop = new Prop <T>(propertyName, initialValue, typeIsSolid, propTemplate);
return(prop);
}
public override IProp <T> CreateWithNoValue <T>
(
PropNameType propertyName,
object extraInfo,
PropStorageStrategyEnum storageStrategy,
bool typeIsSolid,
Func <T, T, bool> comparer,
bool comparerIsRefEquality,
Func <string, T> getDefaultValFunc
)
{
IPropTemplate <T> propTemplate = GetPropTemplate <T>(PropKindEnum.Prop, storageStrategy, comparer, comparerIsRefEquality, getDefaultValFunc);
if (storageStrategy == PropStorageStrategyEnum.Internal)
{
propTemplate.PropCreator = CookedScalarPropCreatorNoVal <T>;
}
else
{
propTemplate.PropCreator = CookedScalarPropCreatorNoStore <T>;
}
if (storageStrategy == PropStorageStrategyEnum.Internal)
{
// Regular Prop with Internal Storage -- Just don't have a value as yet.
IProp <T> prop = new Prop <T>(propertyName, typeIsSolid, propTemplate);
return(prop);
}
else
{
// Prop With External Store, or this is a Prop that supplies a Virtual (aka Caclulated) value from an internal source or from LocalBindings
// This implementation simply creates a Property that will always have the default value for type T.
IProp <T> prop = new PropNoStore <T>(propertyName, typeIsSolid, propTemplate);
return(prop);
}
}
private static IProp CookedScalarPropCreatorNoStore <T>(string propertyName2, object initialValue2, bool typeIsSolid2, IPropTemplate propTemplate2)
{
// Prop With External Store, or this is a Prop that supplies a Virtual (aka Caclulated) value from an internal source or from LocalBindings
// This implementation simply creates a Property that will always have the default value for type T.
IProp <T> prop = new PropNoStore <T>(propertyName2, typeIsSolid2, (IPropTemplate <T>)propTemplate2);
return(prop);
}
private static IProp CookedScalarPropCreatorNoVal <T>(string propertyName2, object initialValue2, bool typeIsSolid2, IPropTemplate propTemplate2)
{
// Regular Prop with Internal Storage -- Just don't have a value as yet.
IProp <T> prop = new Prop <T>(propertyName2, typeIsSolid2, (IPropTemplate <T>)propTemplate2);
return(prop);
}
private IPropTemplate Factory(IPropTemplate propTemplate)
{
return(propTemplate);
}
private static IProp CookedCVPropCreator(string propertyName2, object initialValue2, bool typeIsSolid2, IPropTemplate propTemplate2)
{
CViewProp result2 = new CViewProp(propertyName2, (IProvideAView)initialValue2, (IPropTemplate <ListCollectionView>)propTemplate2);
return(result2);
}
public override IProp CreateCVSProp(PropNameType propertyName, IProvideAView viewProvider, IPropTemplate propTemplate)
{
IEqualityComparer <CollectionViewSource> comparer = RefEqualityComparer <CollectionViewSource> .Default;
bool comparerIsRefEquality = true;
if (propTemplate == null)
{
propTemplate = GetPropTemplate <CollectionViewSource>(PropKindEnum.CollectionViewSource, PropStorageStrategyEnum.Internal, comparer.Equals, comparerIsRefEquality, null);
}
propTemplate.PropCreator = CookedCVSPropCreator;
ICViewSourceProp <CollectionViewSource> result = new CViewSourceProp(propertyName, viewProvider, (IPropTemplate <CollectionViewSource>)propTemplate);
return(result);
}
//[System.Diagnostics.Conditional("DEBUG")]
//private void CheckGenerationRef(PropNodeCollectionInternalInterface key, PropNodeCollectionInternalInterface basePropItemSet, GenerationIdType generationId)
//{
// if (generationId == 0)
// {
// System.Diagnostics.Debug.Assert(ReferenceEquals(key, basePropItemSet), "The GenerationId is 0, but the base is not the same as the key.");
// }
// else
// {
// System.Diagnostics.Debug.Assert(!ReferenceEquals(key, basePropItemSet), "The GenerationId is not 0, but the base *is* the same as the key.");
// }
//}
#endregion
#region PropTemplate Support
public IPropTemplate GetOrAdd(IPropTemplate propTemplate)
{
IPropTemplate result = _propTemplateCache.GetOrAdd(propTemplate);
return(result);
}
public CViewSourceProp(PropNameType propertyName, IProvideAView viewProvider, IPropTemplate <CollectionViewSource> template)
: base(propertyName, typeIsSolid: true, template: template)
{
if (_template.StorageStrategy != PropStorageStrategyEnum.Virtual)
{
throw new InvalidOperationException($"CViewSource PropItems only support {nameof(PropStorageStrategyEnum.Virtual)}.");
}
_viewProvider = viewProvider;
}
public CProp(PropNameType propertyName, CT initalValue, bool typeIsSolid, IPropTemplate <CT> template)
: base(propertyName, initalValue, typeIsSolid, template)
{
}
public virtual IProp CreateCVProp(PropNameType propertyName, IProvideAView viewProvider, IPropTemplate propTemplate)
{
throw new NotImplementedException($"This implementation of {nameof(IPropFactory)} cannot create CVProps (CollectionView PropItems), please use WPFPropfactory or similar.");
}
public override IProp CreateCVProp(string propertyName, IProvideAView viewProvider, IPropTemplate propTemplate)
{
IEqualityComparer <ListCollectionView> comparer = RefEqualityComparer <ListCollectionView> .Default;
bool comparerIsRefEquality = true;
if (propTemplate == null)
{
propTemplate = GetPropTemplate <ListCollectionView>(PropKindEnum.CollectionView, PropStorageStrategyEnum.Internal, comparer.Equals, comparerIsRefEquality, null);
}
propTemplate.PropCreator = CookedCVPropCreator;
CViewProp result = new CViewProp(propertyName, viewProvider, (IPropTemplate <ListCollectionView>)propTemplate);
return(result);
}
// No initial value.
public Prop(PropNameType propertyName, bool typeIsSolid, IPropTemplate <T> template)
: base(propertyName, typeIsSolid, template)
{
}
private static IProp CookedScalarPropCreator <T>(string propertyName2, object initialValue2, bool typeIsSolid2, IPropTemplate propTemplate2)
{
IProp <T> prop2 = new Prop <T>(propertyName2, (T)initialValue2, typeIsSolid2, (IPropTemplate <T>)propTemplate2);
return(prop2);
}
public PropExternStore(string propertyName, object extraInfo, bool typeIsSolid, IPropTemplate <T> template)
: base(propertyName, typeIsSolid, template)
{
_extraInfo = extraInfo;
Tag = Guid.NewGuid(); // tag;
Getter = null; // getter;
Setter = null; // setter;
ValueIsDefined = Getter != null;
}