private void initializeOuterSourceScalar()
{
_outerSourceScalarPropertyChangedEventHandler = handleSourceScalarValueChanged;
_outerSourceScalarWeakPropertyChangedEventHandler =
new WeakPropertyChangedEventHandler(_outerSourceScalarPropertyChangedEventHandler);
_outerSourceScalar.PropertyChanged += _outerSourceScalarWeakPropertyChangedEventHandler.Handle;
}
private void initialize(IReadScalar <TResult> scalar, IDispatcher sourceDispatcher)
{
_scalar = scalar;
_sourceDispatcher = sourceDispatcher;
void readAndSubscribe()
{
void setNewValue() => setValue(_scalar.Value);
_destinationDispatcher.Invoke(setNewValue, this);
_scalarPropertyChangedEventHandler = handleScalarPropertyChanged;
_scalarWeakPropertyChangedEventHandler =
new WeakPropertyChangedEventHandler(_scalarPropertyChangedEventHandler);
_scalar.PropertyChanged += _scalarWeakPropertyChangedEventHandler.Handle;
}
if (_sourceDispatcher != null)
{
_sourceDispatcher.Invoke(readAndSubscribe, this);
}
else
{
readAndSubscribe();
}
}
private void initializeIndexScalar()
{
_indexScalarPropertyChangedEventHandler = handleIndexScalarValueChanged;
_indexScalarWeakPropertyChangedEventHandler =
new WeakPropertyChangedEventHandler(_indexScalarPropertyChangedEventHandler);
_indexValueScalar.PropertyChanged += _indexScalarWeakPropertyChangedEventHandler.Handle;
_index = _indexValueScalar.Value;
}
private Differing(
IReadScalar <TResult> scalar)
{
_scalar = scalar;
_scalarPropertyChangedEventHandler = handleScalarPropertyChanged;
_scalarWeakPropertyChangedEventHandler = new WeakPropertyChangedEventHandler(_scalarPropertyChangedEventHandler);
_scalar.PropertyChanged += _scalarWeakPropertyChangedEventHandler.Handle;
}
private ScalarProcessingVoid(
IReadScalar <TValue> scalar)
{
_scalar = scalar;
_scalarPropertyChangedEventHandler = handleScalarPropertyChanged;
_scalarWeakPropertyChangedEventHandler = new WeakPropertyChangedEventHandler(_scalarPropertyChangedEventHandler);
_scalar.PropertyChanged += _scalarWeakPropertyChangedEventHandler.Handle;
}
public Casting(
IReadScalar <INotifyCollectionChanged> sourceScalar) : base(Utils.getCapacity(sourceScalar))
{
_sourceScalar = sourceScalar;
_sourceScalarPropertyChangedEventHandler = handleSourceScalarValueChanged;
_sourceScalarWeakPropertyChangedEventHandler = new WeakPropertyChangedEventHandler(_sourceScalarPropertyChangedEventHandler);
_sourceScalar.PropertyChanged += _sourceScalarWeakPropertyChangedEventHandler.Handle;
initializeFromSource();
}
public PreviousTracking(
IReadScalar <TResult> scalar)
{
_scalar = scalar;
_value = _scalar.Value;
_scalarPropertyChangedEventHandler = handleScalarPropertyChanged;
_scalarWeakPropertyChangedEventHandler = new WeakPropertyChangedEventHandler(_scalarPropertyChangedEventHandler);
_scalar.PropertyChanged += _scalarWeakPropertyChangedEventHandler.Handle;
}
private void initializeSeparatorScalar()
{
if (_separatorScalar != null)
{
_separatorScalarPropertyChangedEventHandler = handleSeparatorScalarValueChanged;
_separatorScalarWeakPropertyChangedEventHandler =
new WeakPropertyChangedEventHandler(_separatorScalarPropertyChangedEventHandler);
_separatorScalar.PropertyChanged += _separatorScalarWeakPropertyChangedEventHandler.Handle;
}
}
private PropertyAccessing(
IReadScalar <INotifyPropertyChanged> propertyHolderScalar)
{
_propertyHolderScalar = propertyHolderScalar;
_propertyHolderScalarPropertyChangedEventHandler = handlePropertyHolderScalarPropertyChanged;
_propertyHolderScalarWeakPropertyChangedEventHandler =
new WeakPropertyChangedEventHandler(_propertyHolderScalarPropertyChangedEventHandler);
_propertyHolderScalar.PropertyChanged += _propertyHolderScalarWeakPropertyChangedEventHandler.Handle;
_setValueAction = result => _propertyInfo.SetValue(_propertyHolder, result);
}
public Selecting(
IReadScalar <INotifyCollectionChanged> sourceScalar,
Expression <Func <TSourceItem, TResultItem> > selectorExpression) : this(selectorExpression, Utils.getCapacity(sourceScalar))
{
_sourceScalar = sourceScalar;
_sourceScalarPropertyChangedEventHandler = handleSourceScalarValueChanged;
_sourceScalarWeakPropertyChangedEventHandler = new WeakPropertyChangedEventHandler(_sourceScalarPropertyChangedEventHandler);
_sourceScalar.PropertyChanged += _sourceScalarWeakPropertyChangedEventHandler.Handle;
initializeFromSource();
}
public AnyComputing(
IReadScalar <INotifyCollectionChanged> sourceScalar,
Expression <Func <TSourceItem, bool> > predicateExpression) : this(predicateExpression, Utils.getCapacity(sourceScalar))
{
_sourceScalar = sourceScalar;
_sourceScalarPropertyChangedEventHandler = handleSourceScalarValueChanged;
_sourceScalarWeakPropertyChangedEventHandler = new WeakPropertyChangedEventHandler(_sourceScalarPropertyChangedEventHandler);
_sourceScalar.PropertyChanged += _sourceScalarWeakPropertyChangedEventHandler.Handle;
initializeFromSource();
}
public Differing(
IReadScalar <TResult> scalar,
IReadScalar <IEqualityComparer <TResult> > equalityComparerScalar) : this(scalar)
{
_equalityComparerScalarPropertyChangedEventHandler = handleEqualityComparerScalarValueChanged;
_equalityComparerScalarWeakPropertyChangedEventHandler =
new WeakPropertyChangedEventHandler(_equalityComparerScalarPropertyChangedEventHandler);
_equalityComparerScalar = equalityComparerScalar;
_equalityComparerScalar.PropertyChanged += _equalityComparerScalarWeakPropertyChangedEventHandler.Handle;
_equalityComparer = _equalityComparerScalar.Value ?? EqualityComparer <TResult> .Default;
}
public CollectionProcessingVoid(
IReadScalar <INotifyCollectionChanged> sourceScalar,
Action <TSourceItem, CollectionProcessingVoid <TSourceItem> > newItemProcessor = null,
Action <TSourceItem, CollectionProcessingVoid <TSourceItem> > oldItemProcessor = null,
Action <TSourceItem, CollectionProcessingVoid <TSourceItem> > moveItemProcessor = null) : this(newItemProcessor, oldItemProcessor, moveItemProcessor, Utils.getCapacity(sourceScalar))
{
_sourceScalar = sourceScalar;
_sourceScalarPropertyChangedEventHandler = handleSourceScalarValueChanged;
_sourceScalarWeakPropertyChangedEventHandler = new WeakPropertyChangedEventHandler(_sourceScalarPropertyChangedEventHandler);
_sourceScalar.PropertyChanged += _sourceScalarWeakPropertyChangedEventHandler.Handle;
initializeFromSource(null, null);
}
public Concatenating(
IReadScalar <INotifyCollectionChanged> sourcesScalar) : base(calculateCapacity(sourcesScalar.Value))
{
int capacity = Utils.getCapacity(sourcesScalar);
_itemInfos = new List <ItemInfo>(capacity);
_sourceRangePositions = new RangePositions <ItemInfo>(_itemInfos);
_sourcesScalar = sourcesScalar;
_sourcesScalarPropertyChangedEventHandler = handleSourcesScalarValueChanged;
_sourcesScalarWeakPropertyChangedEventHandler = new WeakPropertyChangedEventHandler(_sourcesScalarPropertyChangedEventHandler);
_sourcesScalar.PropertyChanged += _sourcesScalarWeakPropertyChangedEventHandler.Handle;
initializeFromSources();
}
private void initializeComparerScalar()
{
if (_comparerScalar != null)
{
_comparerScalarPropertyChangedEventHandler = handleComparerScalarValueChanged;
_comparerScalarWeakPropertyChangedEventHandler =
new WeakPropertyChangedEventHandler(_comparerScalarPropertyChangedEventHandler);
_comparerScalar.PropertyChanged += _comparerScalarWeakPropertyChangedEventHandler.Handle;
_comparer = _comparerScalar.Value ?? Comparer <TSourceItem> .Default;
}
else
{
_comparer = Comparer <TSourceItem> .Default;
}
}
private void initialize(IReadScalar <INotifyCollectionChanged> sourceScalar, IDispatcher sourceDispatcher)
{
_sourceDispatcher = sourceDispatcher;
_sourceScalar = sourceScalar;
_sourceScalarPropertyChangedEventHandler = handleSourceScalarValueChanged;
_sourceScalarWeakPropertyChangedEventHandler =
new WeakPropertyChangedEventHandler(_sourceScalarPropertyChangedEventHandler);
_sourceScalar.PropertyChanged += _sourceScalarWeakPropertyChangedEventHandler.Handle;
if (_sourceDispatcher != null)
{
_sourceDispatcher.Invoke(initializeFromSource, this);
}
else
{
initializeFromSource();
}
}
private void initializeFromSources()
{
int originalCount = _items.Count;
if (_sourcesNotifyCollectionChangedEventHandler != null)
{
int itemInfosCount = _itemInfos.Count;
for (int index = 0; index < itemInfosCount; index++)
{
ItemInfo itemInfo = _itemInfos[index];
if (itemInfo.Source != null)
{
itemInfo.Source.CollectionChanged -=
itemInfo.SourceWeakNotifyCollectionChangedEventHandler.Handle;
}
}
int capacity = _sourcesScalar != null?Utils.getCapacity(_sourcesScalar) : Utils.getCapacity(_sources);
_itemInfos = new List <ItemInfo>(capacity);
_sourceRangePositions = new RangePositions <ItemInfo>(_itemInfos);
_sources.CollectionChanged -= _sourcesWeakNotifyCollectionChangedEventHandler.Handle;
_sourcesNotifyCollectionChangedEventHandler = null;
_sourcesWeakNotifyCollectionChangedEventHandler = null;
}
if (_sourcesAsINotifyPropertyChanged != null)
{
_sourcesAsINotifyPropertyChanged.PropertyChanged -=
_sourcesWeakPropertyChangedEventHandler.Handle;
_sourcesAsINotifyPropertyChanged = null;
_sourcesPropertyChangedEventHandler = null;
_sourcesWeakPropertyChangedEventHandler = null;
}
if (_sourcesScalar != null)
{
_sources = _sourcesScalar.Value;
}
_sourcesAsList = (IList)_sources;
if (_sources != null)
{
_sourcesAsIHasChangeMarker = _sourcesAsList as IHasChangeMarker;
if (_sourcesAsIHasChangeMarker != null)
{
_lastProcessedSourcesChangeMarker = _sourcesAsIHasChangeMarker.ChangeMarker;
}
else
{
_sourcesAsINotifyPropertyChanged = (INotifyPropertyChanged)_sourcesAsList;
_sourcesPropertyChangedEventHandler = (sender, args) =>
{
if (args.PropertyName == "Item[]")
{
_indexerPropertyChangedEventRaised = true; // ObservableCollection raises this before CollectionChanged event raising
}
};
_sourcesWeakPropertyChangedEventHandler =
new WeakPropertyChangedEventHandler(_sourcesPropertyChangedEventHandler);
_sourcesAsINotifyPropertyChanged.PropertyChanged +=
_sourcesWeakPropertyChangedEventHandler.Handle;
}
int plainIndex = 0;
int count = _sourcesAsList.Count;
for (int index = 0; index < count; index++)
{
object sourceItemObject = _sourcesAsList[index];
IReadScalar <object> sourceItemScalar = sourceItemObject as IReadScalar <object>;
IList sourceItem = sourceItemScalar != null ? (IList)sourceItemScalar.Value : (IList)sourceItemObject;
int sourceItemCount = sourceItem?.Count ?? 0;
ItemInfo itemInfo = _sourceRangePositions.Add(sourceItemCount);
registerSourceItem(sourceItemObject, itemInfo);
for (int sourceSourceIndex = 0; sourceSourceIndex < sourceItemCount; sourceSourceIndex++)
{
if (originalCount > plainIndex)
{
// ReSharper disable once PossibleNullReferenceException
_items[plainIndex++] = (TSourceItem)sourceItem[sourceSourceIndex];
}
else
{
// ReSharper disable once PossibleNullReferenceException
_items.Insert(plainIndex++, (TSourceItem)sourceItem[sourceSourceIndex]);
}
}
}
for (int index = originalCount - 1; index >= plainIndex; index--)
{
_items.RemoveAt(index);
}
_sourcesNotifyCollectionChangedEventHandler = handleSourcesCollectionChanged;
_sourcesWeakNotifyCollectionChangedEventHandler =
new WeakNotifyCollectionChangedEventHandler(_sourcesNotifyCollectionChangedEventHandler);
_sources.CollectionChanged += _sourcesWeakNotifyCollectionChangedEventHandler.Handle;
}
else
{
_items.Clear();
}
reset();
}
private void registerPropertyHolder(INotifyPropertyChanged propertyHolder)
{
if (_propertyHolderWeakPropertyChangedEventHandler != null)
{
_propertyHolder.PropertyChanged -= _propertyHolderWeakPropertyChangedEventHandler.Handle;
_propertyHolderWeakPropertyChangedEventHandler = null;
_propertyHolderPropertyChangedEventHandler = null;
}
void getPropertyInfo(PropertyInfo[] propertyInfos)
{
for (int i = 0; i < propertyInfos.Length; i++)
{
PropertyInfo propertyInfo = propertyInfos[i];
if (_propertyInfoPredicate(propertyInfo))
{
_propertyInfo = propertyInfo;
break;
}
}
}
_propertyInfo = null;
_propertyHolder = propertyHolder;
if (_propertyHolder == null)
{
setValue(_defaultValue);
return;
}
_propertyHolderType = _propertyHolder.GetType();
switch (_propertyInfoGettingType)
{
case PropertyInfoGettingType.PropertyName:
_propertyInfo = _propertyHolderType.GetProperty(_propertyName);
break;
case PropertyInfoGettingType.BindingAttr:
_propertyInfo = _propertyHolderType.GetProperty(_propertyName, _bindingAttr);
break;
case PropertyInfoGettingType.Binder:
_propertyInfo = _propertyHolderType.GetProperty(_propertyName, _bindingAttr, _binder, _returnType, _types, _modifiers);
break;
case PropertyInfoGettingType.ReturnType:
_propertyInfo = _propertyHolderType.GetProperty(_propertyName, _returnType);
break;
case PropertyInfoGettingType.Types:
_propertyInfo = _propertyHolderType.GetProperty(_propertyName, _returnType, _types);
break;
case PropertyInfoGettingType.Modifiers:
_propertyInfo = _propertyHolderType.GetProperty(_propertyName, _returnType, _types, _modifiers);
break;
case PropertyInfoGettingType.PropertyInfoPredicate:
getPropertyInfo(_propertyHolderType.GetProperties());
break;
case PropertyInfoGettingType.PropertyInfoPredicateBindingAttr:
getPropertyInfo(_propertyHolderType.GetProperties(_bindingAttr));
break;
}
if (_propertyInfo == null)
{
throw new ObservableComputationsException(this, "Cannot obtain propertyInfo");
}
_propertyHolderPropertyChangedEventHandler = handlePropertyHolderPropertyChanged;
_propertyHolderWeakPropertyChangedEventHandler =
new WeakPropertyChangedEventHandler(_propertyHolderPropertyChangedEventHandler);
_propertyHolder.PropertyChanged += _propertyHolderWeakPropertyChangedEventHandler.Handle;
setValue((TResult)_propertyInfo.GetValue(_propertyHolder));
}
private void initializeFromSources()
{
if (_outerSourceNotifyCollectionChangedEventHandler != null)
{
_outerSource.CollectionChanged -= _outerSourceWeakNotifyCollectionChangedEventHandler.Handle;
_outerSourceNotifyCollectionChangedEventHandler = null;
_outerSourceWeakNotifyCollectionChangedEventHandler = null;
}
if (_innerSourceNotifyCollectionChangedEventHandler != null)
{
_innerSource.CollectionChanged -= _innerSourceWeakNotifyCollectionChangedEventHandler.Handle;
_innerSourceNotifyCollectionChangedEventHandler = null;
_innerSourceWeakNotifyCollectionChangedEventHandler = null;
}
if (_innerSourceAsINotifyPropertyChanged != null)
{
_innerSourceAsINotifyPropertyChanged.PropertyChanged -=
_innerSourceWeakPropertyChangedEventHandler.Handle;
_innerSourceAsINotifyPropertyChanged = null;
_innerSourcePropertyChangedEventHandler = null;
_innerSourceWeakPropertyChangedEventHandler = null;
}
if (_outerSourceAsINotifyPropertyChanged != null)
{
_outerSourceAsINotifyPropertyChanged.PropertyChanged -=
_outerSourceWeakPropertyChangedEventHandler.Handle;
_outerSourceAsINotifyPropertyChanged = null;
_outerSourcePropertyChangedEventHandler = null;
_outerSourceWeakPropertyChangedEventHandler = null;
}
if (_outerSource != null || _innerSource != null)
{
baseClearItems();
}
if (_outerSourceScalar != null)
{
_outerSource = _outerSourceScalar.Value;
}
_outerSourceAsList = (IList <TOuterSourceItem>)_outerSource;
if (_innerSourceScalar != null)
{
_innerSource = _innerSourceScalar.Value;
}
_innerSourceAsList = (IList <TInnerSourceItem>)_innerSource;
if (_outerSource != null && _innerSource != null)
{
_outerSourceAsObservableCollectionWithChangeMarker = _outerSourceAsList as ObservableCollectionWithChangeMarker <TOuterSourceItem>;
if (_outerSourceAsObservableCollectionWithChangeMarker != null)
{
_lastProcessedOuterSourceChangeMarker = _outerSourceAsObservableCollectionWithChangeMarker.ChangeMarkerField;
}
else
{
_outerSourceAsINotifyPropertyChanged = (INotifyPropertyChanged)_outerSource;
_outerSourcePropertyChangedEventHandler = (sender, args) =>
{
if (args.PropertyName == "Item[]")
{
_outerSourceIndexerPropertyChangedEventRaised = true; // ObservableCollection raises this before CollectionChanged event raising
}
};
_outerSourceWeakPropertyChangedEventHandler =
new WeakPropertyChangedEventHandler(_outerSourcePropertyChangedEventHandler);
_outerSourceAsINotifyPropertyChanged.PropertyChanged +=
_outerSourceWeakPropertyChangedEventHandler.Handle;
}
_innerSourceAsObservableCollectionWithChangeMarker = _innerSourceAsList as ObservableCollectionWithChangeMarker <TInnerSourceItem>;
if (_innerSourceAsObservableCollectionWithChangeMarker != null)
{
_lastProcessedInnerSourceChangeMarker = _innerSourceAsObservableCollectionWithChangeMarker.ChangeMarkerField;
}
else
{
_innerSourceAsINotifyPropertyChanged = (INotifyPropertyChanged)_innerSource;
_innerSourcePropertyChangedEventHandler = (sender, args) =>
{
if (args.PropertyName == "Item[]")
{
_innerSourceIndexerPropertyChangedEventRaised = true; // ObservableCollection raises this before CollectionChanged event raising
}
};
_innerSourceWeakPropertyChangedEventHandler =
new WeakPropertyChangedEventHandler(_innerSourcePropertyChangedEventHandler);
_innerSourceAsINotifyPropertyChanged.PropertyChanged +=
_innerSourceWeakPropertyChangedEventHandler.Handle;
}
// ReSharper disable once PossibleNullReferenceException
int outerSourceCount = _outerSourceAsList.Count;
// ReSharper disable once PossibleNullReferenceException
int innerSourceCount = _innerSourceAsList.Count;
int baseIndex = 0;
for (int outerSourceIndex = 0; outerSourceIndex < outerSourceCount; outerSourceIndex++)
{
TOuterSourceItem sourceOuterItem = _outerSourceAsList[outerSourceIndex];
for (int innerSourceIndex = 0; innerSourceIndex < innerSourceCount; innerSourceIndex++)
{
TInnerSourceItem sourceInnerItem = _innerSourceAsList[innerSourceIndex];
JoinPair <TOuterSourceItem, TInnerSourceItem> joinPair = new JoinPair <TOuterSourceItem, TInnerSourceItem>(
sourceOuterItem, sourceInnerItem);
baseInsertItem(baseIndex + innerSourceIndex, joinPair);
}
baseIndex = baseIndex + innerSourceCount;
}
_outerSourceNotifyCollectionChangedEventHandler = handleOuterSourceCollectionChanged;
_outerSourceWeakNotifyCollectionChangedEventHandler =
new WeakNotifyCollectionChangedEventHandler(_outerSourceNotifyCollectionChangedEventHandler);
_outerSource.CollectionChanged += _outerSourceWeakNotifyCollectionChangedEventHandler.Handle;
_innerSourceNotifyCollectionChangedEventHandler = handleInnerSourceCollectionChanged;
_innerSourceWeakNotifyCollectionChangedEventHandler =
new WeakNotifyCollectionChangedEventHandler(_innerSourceNotifyCollectionChangedEventHandler);
_innerSource.CollectionChanged += _innerSourceWeakNotifyCollectionChangedEventHandler.Handle;
}
}
private void initialize(Expression <Func <TResult> > propertyExpression)
{
_propertyExpression = propertyExpression;
MemberExpression memberExpression = (MemberExpression)propertyExpression.Body;
PropertyInfo propertyInfo = (PropertyInfo)((MemberExpression)propertyExpression.Body).Member;
PropertyAccessors propertyAcessors;
if (!_propertyAccessors.TryGetValue(propertyInfo, out propertyAcessors))
{
ParameterExpression valueParameterExpression = Expression.Parameter(typeof(TResult));
ParameterExpression holderParameterExpression = Expression.Parameter(typeof(THolder));
var setter = Expression.Lambda <Action <THolder, TResult> >(
Expression.Assign(Expression.Property(holderParameterExpression, propertyInfo), valueParameterExpression),
holderParameterExpression, valueParameterExpression).Compile();
var getter = Expression.Lambda <Func <THolder, TResult> >(
Expression.Property(holderParameterExpression, propertyInfo),
holderParameterExpression).Compile();
propertyAcessors = new PropertyAccessors(getter, setter);
_propertyAccessors.TryAdd(propertyInfo, propertyAcessors);
}
_getter = propertyAcessors.Getter;
_setter = propertyAcessors.Setter;
_propertyHolder = (THolder)((ConstantExpression)memberExpression.Expression).Value;
_propertyHolderPropertyChangedEventHandler = handlePropertyHolderPropertyChanged;
_propertyHolderWeakPropertyChangedEventHandler =
new WeakPropertyChangedEventHandler(_propertyHolderPropertyChangedEventHandler);
void readAndSubscribe()
{
getValue();
void raiseValuePropertyChanged()
{
PropertyChanged?.Invoke(this, Utils.ValuePropertyChangedEventArgs);
}
_propertyHolder.PropertyChanged += _propertyHolderWeakPropertyChangedEventHandler.Handle;
_destinationDispatcher.Invoke(raiseValuePropertyChanged, this);
}
if (_sourceDispatcher != null)
{
if (_sourceDispatcher != null)
{
_sourceDispatcher.Invoke(readAndSubscribe, this);
}
else
{
_propertySourceDispatcher.Invoke(readAndSubscribe, this, true, null);
}
}
else
{
readAndSubscribe();
}
if (Configuration.SaveInstantiatingStackTrace)
{
_instantiatingStackTrace = Environment.StackTrace;
}
}
private void initializeFromSource()
{
int originalCount = _items.Count;
if (_sourceWeakPropertyChangedEventHandler == null)
{
_sourceAsINotifyPropertyChanged = (INotifyPropertyChanged)_sourceAsList;
_sourcePropertyChangedEventHandler = (sender, args) =>
{
if (args.PropertyName == "Item[]")
{
_indexerPropertyChangedEventRaised = true; // ObservableCollection raises this before CollectionChanged event raising
}
};
_sourceWeakPropertyChangedEventHandler = new WeakPropertyChangedEventHandler(_sourcePropertyChangedEventHandler);
_sourceAsINotifyPropertyChanged.PropertyChanged += _sourceWeakPropertyChangedEventHandler.Handle;
}
int count = _sourceAsList.Count;
if (count > 0)
{
int sourceIndex;
for (sourceIndex = 0; sourceIndex < count; sourceIndex++)
{
if (originalCount > sourceIndex)
{
_items[sourceIndex] = _sourceAsList[sourceIndex];
}
else
{
_items.Insert(sourceIndex, _sourceAsList[sourceIndex]);
}
}
for (int index = originalCount - 1; index >= sourceIndex; index--)
{
_items.RemoveAt(index);
}
}
else
{
_items.Clear();
}
if (_sourceWeakNotifyCollectionChangedEventHandler == null)
{
_sourceNotifyCollectionChangedEventHandler = handleSourceCollectionChanged;
_sourceWeakNotifyCollectionChangedEventHandler =
new WeakNotifyCollectionChangedEventHandler(_sourceNotifyCollectionChangedEventHandler);
_source.CollectionChanged += _sourceWeakNotifyCollectionChangedEventHandler.Handle;
}
ChangeMarkerField = !ChangeMarkerField;
this.CheckReentrancy();
this.OnPropertyChanged(Utils.CountPropertyChangedEventArgs);
this.OnPropertyChanged(Utils.IndexerPropertyChangedEventArgs);
this.OnCollectionChanged(Utils.ResetNotifyCollectionChangedEventArgs);
}
private void initializeFromSource()
{
if (_sourceNotifyCollectionChangedEventHandler != null)
{
_valueStringBuilder.Clear();
int capacity = _sourceScalar != null?Utils.getCapacity(_sourceScalar) : Utils.getCapacity(_source);
_resultRangePositions = new RangePositions <RangePosition>(new List <RangePosition>(capacity * 2));
_source.CollectionChanged -= _sourceWeakNotifyCollectionChangedEventHandler.Handle;
_sourceNotifyCollectionChangedEventHandler = null;
_sourceWeakNotifyCollectionChangedEventHandler = null;
setValue(String.Empty);
}
if (_sourceAsINotifyPropertyChanged != null)
{
_sourceAsINotifyPropertyChanged.PropertyChanged -=
_sourceWeakPropertyChangedEventHandler.Handle;
_sourceAsINotifyPropertyChanged = null;
_sourcePropertyChangedEventHandler = null;
_sourceWeakPropertyChangedEventHandler = null;
}
if (_sourceScalar != null)
{
_source = _sourceScalar.Value;
}
_sourceAsList = (IList <string>)_source;
if (_source != null)
{
_sourceAsObservableCollectionWithChangeMarker = _sourceAsList as ObservableCollectionWithChangeMarker <string>;
if (_sourceAsObservableCollectionWithChangeMarker != null)
{
_lastProcessedSourceChangeMarker = _sourceAsObservableCollectionWithChangeMarker.ChangeMarkerField;
}
else
{
_sourceAsINotifyPropertyChanged = (INotifyPropertyChanged)_sourceAsList;
_sourcePropertyChangedEventHandler = (sender, args) =>
{
if (args.PropertyName == "Item[]")
{
_indexerPropertyChangedEventRaised =
true; // ObservableCollection raises this before CollectionChanged event raising
}
};
_sourceWeakPropertyChangedEventHandler =
new WeakPropertyChangedEventHandler(_sourcePropertyChangedEventHandler);
_sourceAsINotifyPropertyChanged.PropertyChanged += _sourceWeakPropertyChangedEventHandler.Handle;
}
_sourceNotifyCollectionChangedEventHandler = handleSourceCollectionChanged;
_sourceWeakNotifyCollectionChangedEventHandler =
new WeakNotifyCollectionChangedEventHandler(_sourceNotifyCollectionChangedEventHandler);
_source.CollectionChanged += _sourceWeakNotifyCollectionChangedEventHandler.Handle;
recalculateValue();
}
else
{
_valueStringBuilder.Clear();
setValue(String.Empty);
}
}
private void initializeFromSource()
{
if (_sourceNotifyCollectionChangedEventHandler != null)
{
_source.CollectionChanged -= _sourceWeakNotifyCollectionChangedEventHandler.Handle;
_sourceNotifyCollectionChangedEventHandler = null;
_sourceWeakNotifyCollectionChangedEventHandler = null;
}
if (_sourceAsINotifyPropertyChanged != null)
{
_sourceAsINotifyPropertyChanged.PropertyChanged -=
_sourceWeakPropertyChangedEventHandler.Handle;
_sourceAsINotifyPropertyChanged = null;
_sourcePropertyChangedEventHandler = null;
_sourceWeakPropertyChangedEventHandler = null;
}
if (_sourceScalar != null)
{
_source = _sourceScalar.Value;
}
_sourceAsList = (IList <TSourceItem>)_source;
if (_source != null)
{
_sourceAsObservableCollectionWithChangeMarker = _sourceAsList as ObservableCollectionWithChangeMarker <TSourceItem>;
if (_sourceAsObservableCollectionWithChangeMarker != null)
{
_lastProcessedSourceChangeMarker = _sourceAsObservableCollectionWithChangeMarker.ChangeMarkerField;
}
else
{
_sourceAsINotifyPropertyChanged = (INotifyPropertyChanged)_sourceAsList;
_sourcePropertyChangedEventHandler = (sender, args) =>
{
if (args.PropertyName == "Item[]")
{
_indexerPropertyChangedEventRaised =
true; // ObservableCollection raises this before CollectionChanged event raising
}
};
_sourceWeakPropertyChangedEventHandler =
new WeakPropertyChangedEventHandler(_sourcePropertyChangedEventHandler);
_sourceAsINotifyPropertyChanged.PropertyChanged += _sourceWeakPropertyChangedEventHandler.Handle;
}
_sourceNotifyCollectionChangedEventHandler = handleSourceCollectionChanged;
_sourceWeakNotifyCollectionChangedEventHandler =
new WeakNotifyCollectionChangedEventHandler(_sourceNotifyCollectionChangedEventHandler);
_source.CollectionChanged += _sourceWeakNotifyCollectionChangedEventHandler.Handle;
}
recalculateValue();
}
private void initializeFromSource()
{
int originalCount = _items.Count;
if (_sourceNotifyCollectionChangedEventHandler != null)
{
if (_destinationDispatcher != null)
{
_destinationDispatcher.Invoke(baseClearItems, this);
}
else
{
_collectionDestinationDispatcher.Invoke(baseClearItems, this, NotifyCollectionChangedAction.Reset, null, null, 0, 0);
}
_source.CollectionChanged -= _sourceWeakNotifyCollectionChangedEventHandler.Handle;
_sourceNotifyCollectionChangedEventHandler = null;
_sourceWeakNotifyCollectionChangedEventHandler = null;
}
if (_sourceAsINotifyPropertyChanged != null)
{
_sourceAsINotifyPropertyChanged.PropertyChanged -=
_sourceWeakPropertyChangedEventHandler.Handle;
_sourceAsINotifyPropertyChanged = null;
_sourcePropertyChangedEventHandler = null;
_sourceWeakPropertyChangedEventHandler = null;
}
if (_sourceScalar != null)
{
_source = _sourceScalar.Value;
}
_sourceAsList = _source as IList <TSourceItem>;
if (_sourceAsList != null)
{
_sourceAsIHasChangeMarker = _sourceAsList as IHasChangeMarker;
if (_sourceAsIHasChangeMarker != null)
{
_lastProcessedSourceChangeMarker = _sourceAsIHasChangeMarker.ChangeMarker;
}
else
{
_sourceAsINotifyPropertyChanged = (INotifyPropertyChanged)_sourceAsList;
_sourcePropertyChangedEventHandler = (sender1, args1) =>
{
if (args1.PropertyName == "Item[]")
{
_indexerPropertyChangedEventRaised =
true; // ObservableCollection raises this before CollectionChanged event raising
}
};
_sourceWeakPropertyChangedEventHandler =
new WeakPropertyChangedEventHandler(_sourcePropertyChangedEventHandler);
_sourceAsINotifyPropertyChanged.PropertyChanged += _sourceWeakPropertyChangedEventHandler.Handle;
}
int count = _sourceAsList.Count;
int sourceIndex;
for (sourceIndex = 0; sourceIndex < count; sourceIndex++)
{
if (originalCount > sourceIndex)
{
_items[sourceIndex] = _sourceAsList[sourceIndex];
}
else
{
_items.Insert(sourceIndex, _sourceAsList[sourceIndex]);
}
}
for (int index = originalCount - 1; index >= sourceIndex; index--)
{
_items.RemoveAt(index);
}
_sourceNotifyCollectionChangedEventHandler = handleSourceCollectionChanged;
_sourceWeakNotifyCollectionChangedEventHandler =
new WeakNotifyCollectionChangedEventHandler(_sourceNotifyCollectionChangedEventHandler);
_source.CollectionChanged += _sourceWeakNotifyCollectionChangedEventHandler.Handle;
}
else
{
_items.Clear();
}
if (_destinationDispatcher != null)
{
_destinationDispatcher.Invoke(reset, this);
}
else
{
_collectionDestinationDispatcher.Invoke(reset, this, NotifyCollectionChangedAction.Reset, null, null, 0, 0);
}
}
