private bool TryCreateChildNode(int index, out IUnsubscriber <IChildNode <ChangeTrackerNode> > result)
{
var value = this.SourceList.ElementAtOrMissing(index);
if (value == PaddedPairs.MissingItem)
{
result = null;
return(false);
}
IRefCounted <ChangeTrackerNode> node;
if (TryGetOrCreate(value, this.Settings, false, out node))
{
using (node)
{
var indexNode = ChildNodes <ChangeTrackerNode> .CreateChildNode(this, node.Value, index);
indexNode.Changed += this.OnChildNodeChanged;
result = indexNode.UnsubscribeAndDispose(n => n.Changed -= this.OnChildNodeChanged);
return(true);
}
}
result = null;
return(false);
}
private IUnsubscriber <IChildNode <DirtyTrackerNode> > CreateChildNode(int index)
{
if (!this.IsTrackingCollectionItems)
{
return(null);
}
var xValue = this.XList.ElementAtOrMissing(index);
var yValue = this.YList.ElementAtOrMissing(index);
IRefCounted <DirtyTrackerNode> node;
if (this.TrCreateChild(xValue, yValue, out node))
{
using (node)
{
var childNode = ChildNodes <DirtyTrackerNode> .CreateChildNode(this, node.Value, index);
childNode.Changed += this.OnChildNodeChanged;
return(childNode.UnsubscribeAndDispose(x => x.Changed -= this.OnChildNodeChanged));
}
}
return(null);
}
private void UpdatePropertyNode(PropertyInfo property)
{
if (this.Settings.IsIgnoringProperty(property) ||
!Is.Trackable(property.PropertyType))
{
return;
}
var getter = this.Settings.GetOrCreateGetterAndSetter(property);
var value = getter.GetValue(this.Source);
IRefCounted <ChangeTrackerNode> node;
if (TryGetOrCreate(value, this.Settings, false, out node))
{
using (node)
{
var propertyNode = ChildNodes <ChangeTrackerNode> .CreateChildNode(this, node.Value, property);
propertyNode.Changed += this.OnChildNodeChanged;
IUnsubscriber <IChildNode <ChangeTrackerNode> > childNode = propertyNode.UnsubscribeAndDispose(n => n.Changed -= this.OnChildNodeChanged);
this.Children.SetValue(property, childNode);
}
}
else
{
this.Children.Remove(property);
}
}
private void UpdatePropertyChildNode(PropertyInfo propertyInfo)
{
if (this.Settings.IsIgnoringProperty(propertyInfo))
{
return;
}
if (this.TrackProperties.Contains(propertyInfo) &&
(this.Settings.ReferenceHandling == ReferenceHandling.Structural))
{
var getter = this.Settings.GetOrCreateGetterAndSetter(propertyInfo);
var xValue = getter.GetValue(this.X);
var yValue = getter.GetValue(this.Y);
IRefCounted <DirtyTrackerNode> node;
if (this.TrCreateChild(xValue, yValue, out node))
{
using (node)
{
var childNode = ChildNodes <DirtyTrackerNode> .CreateChildNode(this, node.Value, propertyInfo);
childNode.Changed += this.OnChildNodeChanged;
this.Children.SetValue(propertyInfo, childNode.UnsubscribeAndDispose(x => x.Changed -= this.OnChildNodeChanged));
}
}
else
{
this.Children.Remove(propertyInfo);
}
}
}