public void RemoveTagModel(TagModel tagModel)
{
tagModel.Items.CollectionChanged -= OnTagModelChanged;
foreach (TagModelItem tagModelItem in tagModel.Items)
{
RemoveTagModelItem(tagModelItem);
}
TagModels.Remove(tagModel);
if (TagModels.Count == 0)
{
MultiTagModelItems.ForEach(n => n.IsEnabled = false);
}
if (IsFixed.Value)
{
foreach (FrameMeaning meaning in FixedMeanings)
{
if (tagModel.Supports(meaning) && !tagModel.Contains(meaning))
{
RemoveTagModelItem(FindTemplateItem(tagModel, meaning));
}
}
}
}
public void AddTagModel(TagModel tagModel)
{
int count = TagModels.Count;
TagModels.Add(tagModel);
tagModel.Items.ForEach(n => AddTagModelItem(n));
tagModel.Items.CollectionChanged += OnTagModelChanged;
if (count == 0)
{
MultiTagModelItems.ForEach(n => n.IsEnabled = true);
}
if (IsFixed.Value)
{
foreach (FrameMeaning meaning in FixedMeanings)
{
if (tagModel.Supports(meaning) && !tagModel.Contains(meaning))
{
AddTagModelItem(CreateTemplateItem(tagModel, meaning));
}
}
}
}
private TagModelItem FindTemplateItem(TagModel tagModel, FrameMeaning meaning)
{
if (Object.ReferenceEquals(this[meaning], null))
{
return(null);
}
else
{
return
((from tagModelItem in this[meaning].Items
where tagModelItem.TagModel == tagModel && !tagModel.Contains(tagModelItem)
select tagModelItem).FirstOrDefault());
}
}
private void OnTagModelChanged(object sender, NotifyCollectionChangedEventArgs e)
{
if (e.OldItems != null)
{
foreach (object obj in e.OldItems)
{
TagModelItem item = obj as TagModelItem;
if (IsFixed.Value)
{
TagModel tagModel = tagModelItemToTagModel[item];
if (FixedMeanings.Contains(item.Meaning) && !tagModel.Contains(item.Meaning))
{
AddTagModelItem(CreateTemplateItem(tagModel, item.Meaning));
}
}
RemoveTagModelItem(item);
}
}
if (e.NewItems != null)
{
foreach (object obj in e.NewItems)
{
TagModelItem item = obj as TagModelItem;
AddTagModelItem(item);
if (IsFixed.Value)
{
TagModel tagModel = tagModelItemToTagModel[item];
TagModelItem templateItem = FindTemplateItem(tagModel, item.Meaning);
if (!Object.ReferenceEquals(templateItem, null))
{
RemoveTagModelItem(templateItem);
}
}
}
}
}