public void CloneChanges(ObservableCollection <MetaField> changedFields, FieldChangeTracker tracker,
FieldChangeSet changes)
{
for (int i = 0; i < changedFields.Count; i++)
{
MetaField field = changedFields[i];
var reflexive = field as ReflexiveData;
bool changed = changes.HasChanged(field);
if (field != null && (changed || reflexive != null))
{
if (_fields[i] == null)
{
_fields[i] = field.CloneValue();
tracker.AttachTo(_fields[i]);
if (changed)
{
tracker.MarkChanged(_fields[i]);
}
tracker.MarkUnchanged(field);
if (reflexive != null)
{
reflexive.ResetPages();
}
}
else if (field != _fields[i])
{
throw new InvalidOperationException("Cannot cache changes in a meta field from a different page");
}
}
}
}
private void ReadField(MetaField field)
{
// Update the field's memory address
var valueField = field as ValueField;
if (valueField != null)
{
valueField.FieldAddress = BaseOffset + valueField.Offset;
if (_type == LoadType.File)
{
valueField.FieldAddress = _cache.MetaArea.OffsetToPointer((int)valueField.FieldAddress);
}
}
// Read its contents if it hasn't changed (or if change detection is disabled)
if (_ignoredFields == null || !_ignoredFields.HasChanged(field))
{
field.Accept(this);
}
// If it's a block, read its children
var block = field as TagBlockData;
if (block != null)
{
ReadTagBlockChildren(block);
}
}
public void CloneChanges(ObservableCollection<MetaField> changedFields, FieldChangeTracker tracker,
FieldChangeSet changes)
{
for (int i = 0; i < changedFields.Count; i++)
{
MetaField field = changedFields[i];
var reflexive = field as ReflexiveData;
bool changed = changes.HasChanged(field);
if (field != null && (changed || reflexive != null))
{
if (_fields[i] == null)
{
_fields[i] = field.CloneValue();
tracker.AttachTo(_fields[i]);
if (changed)
tracker.MarkChanged(_fields[i]);
tracker.MarkUnchanged(field);
if (reflexive != null)
reflexive.ResetPages();
}
else if (field != _fields[i])
{
throw new InvalidOperationException("Cannot cache changes in a meta field from a different page");
}
}
}
}
private void WriteField(MetaField field)
{
if (_changes == null || _changes.HasChanged(field))
{
field.Accept(this);
}
var block = field as TagBlockData;
if (block != null)
{
WriteTagBlockChildren(block);
}
}
private void WriteField(MetaField field)
{
if (_changes == null || _changes.HasChanged(field))
{
field.Accept(this);
}
var reflexive = field as ReflexiveData;
if (reflexive != null)
{
WriteReflexiveChildren(reflexive);
}
}
