public RepositoryGroupBinding(CustomListBoxItemsCollection items, RepositoryGroup group)
{
Verify.Argument.IsNotNull(items, "items");
Verify.Argument.IsNotNull(group, "group");
_items = items;
_group = group;
_groupsMapping = new Dictionary<RepositoryGroup, RepositoryGroupListItem>();
_repositoriesMapping = new Dictionary<RepositoryLink, RepositoryListItem>();
foreach(var subGroup in group.Groups)
{
var item = new RepositoryGroupListItem(subGroup);
_groupsMapping.Add(subGroup, item);
items.Add(item);
}
foreach(var repository in group.Respositories)
{
var item = new RepositoryListItem(repository);
_repositoriesMapping.Add(repository, item);
items.Add(item);
}
group.Groups.Changed += OnGroupsChanged;
group.Respositories.Changed += OnRepositoriesChanged;
}
private void OnGroupsChanged(object sender, NotifyCollectionEventArgs e)
{
switch(e.Event)
{
case NotifyEvent.Insert:
for(int i = e.StartIndex; i <= e.EndIndex; ++i)
{
var group = _group.Groups[i];
var item = new RepositoryGroupListItem(group);
_groupsMapping.Add(group, item);
_items.Insert(i, item);
}
break;
case NotifyEvent.Remove:
for(int i = e.StartIndex; i <= e.EndIndex; ++i)
{
var item = _items[i] as RepositoryGroupListItem;
if(item != null)
{
_groupsMapping.Remove(item.DataContext);
}
}
_items.RemoveRange(e.StartIndex, e.ModifiedItems);
break;
case NotifyEvent.Set:
for(int i = e.StartIndex; i <= e.EndIndex; ++i)
{
var item = _items[i] as RepositoryGroupListItem;
if(item != null)
{
_groupsMapping.Remove(item.DataContext);
}
var group = _group.Groups[i];
item = new RepositoryGroupListItem(group);
_groupsMapping.Add(group, item);
_items[i] = item;
}
break;
case NotifyEvent.Clear:
_groupsMapping.Clear();
_items.RemoveRange(0, e.ModifiedItems);
break;
}
}
