private void OnItemsChanged(object sender, NotifyCollectionEventArgs e)
{
if (IsAttachedToListBox && IsPresented)
{
ListBox.OnItemsChanged(sender, e);
}
}
private void OnChanged(object sender, NotifyCollectionEventArgs e)
{
switch (e.Event)
{
case NotifyEvent.Insert:
for (int i = e.StartIndex; i <= e.EndIndex; ++i)
{
var item = _itemConverter(_boundCollection[i]);
_itemsCollection.InsertSafe(i, item);
}
break;
case NotifyEvent.Remove:
_itemsCollection.RemoveRangeSafe(e.StartIndex, e.ModifiedItems);
break;
case NotifyEvent.Set:
for (int i = e.StartIndex; i <= e.EndIndex; ++i)
{
var item = _itemConverter(_boundCollection[i]);
_itemsCollection[i] = item;
}
break;
case NotifyEvent.Clear:
_itemsCollection.ClearSafe();
break;
}
}
private void OnPanelsChanged(object sender, NotifyCollectionEventArgs e)
{
_sizes.Clear();
if (!IsUpdating)
{
NotifyContentSizeChanged();
}
}
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;
}
}
private void OnPanelsChanging(object sender, NotifyCollectionEventArgs e)
{
switch (e.Event)
{
case NotifyEvent.Clear:
_panelHover.Drop();
break;
case NotifyEvent.Remove:
if (_panelHover.Index >= e.StartIndex)
{
if (_panelHover.Index <= e.EndIndex)
{
_panelHover.Drop();
}
else
{
_panelHover.ResetIndex(_panelHover.Index - e.ModifiedItems);
}
}
break;
case NotifyEvent.Set:
if (_panelHover.Index >= e.StartIndex)
{
if (_panelHover.Index <= e.EndIndex)
{
_panelHover.Drop();
}
else
{
_panelHover.ResetIndex(_panelHover.Index - e.ModifiedItems);
}
}
break;
}
}
private void OnItemsChanging(object sender, NotifyCollectionEventArgs e)
{
if(IsAttachedToListBox && IsPresented)
{
ListBox.OnItemsChanging(sender, e);
}
}
private void OnRepositoriesChanged(object sender, NotifyCollectionEventArgs e)
{
switch(e.Event)
{
case NotifyEvent.Insert:
for(int i = e.StartIndex; i <= e.EndIndex; ++i)
{
var repo = _group.Respositories[i];
var item = new RepositoryListItem(repo);
_repositoriesMapping.Add(repo, item);
_items.Insert(i + _groupsMapping.Count, item);
}
break;
case NotifyEvent.Remove:
for(int i = e.StartIndex; i <= e.EndIndex; ++i)
{
var item = _items[i + _groupsMapping.Count] as RepositoryListItem;
if(item != null)
{
_repositoriesMapping.Remove(item.DataContext);
}
}
_items.RemoveRange(e.StartIndex + _groupsMapping.Count, e.ModifiedItems);
break;
case NotifyEvent.Set:
for(int i = e.StartIndex; i <= e.EndIndex; ++i)
{
var item = _items[i + _groupsMapping.Count] as RepositoryListItem;
if(item != null)
{
_repositoriesMapping.Remove(item.DataContext);
}
var repo = _group.Respositories[i];
item = new RepositoryListItem(repo);
_repositoriesMapping.Add(repo, item);
_items[i + _groupsMapping.Count] = item;
}
break;
case NotifyEvent.Clear:
_repositoriesMapping.Clear();
_items.RemoveRange(_groupsMapping.Count, e.ModifiedItems);
break;
}
}
internal void OnItemsChanging(object sender, NotifyCollectionEventArgs e)
{
bool plainListChanged = false;
var items = (CustomListBoxItemsCollection)sender;
var item = items.Parent;
switch(e.Event)
{
case NotifyEvent.Clear:
if(item == null)
{
_lastClickedItemIndex = -1;
_itemFocus.Drop();
_itemHover.Drop();
if(_itemPlainList.Count != 0)
{
plainListChanged = true;
_itemPlainList.Clear();
_selectedItems.Clear();
if(Created)
{
NotifyContentSizeChanged();
}
}
}
else
{
if(item.IsPresented)
{
if(items.Count != 0)
{
if(item.IsExpanded)
{
RemoveItems(items, 0, items.Count - 1);
plainListChanged = true;
}
else
{
_oldItem = item;
}
}
}
}
break;
case NotifyEvent.Set:
if((item == null) || (item.IsPresented && item.IsExpanded))
{
_oldItem = items[e.StartIndex];
_setItemPos = _itemPlainList.IndexOf(_oldItem);
}
break;
case NotifyEvent.Remove:
if((item == null) || (item.IsPresented && item.IsExpanded))
{
RemoveItems(items, e.StartIndex, e.EndIndex);
plainListChanged = true;
}
if(_itemPlainList.Count == 0)
{
Invalidate(_itemsArea);
}
break;
}
if(_haveAutoSizeColumns && plainListChanged)
{
InvalidateAutoSizeColumns();
}
}
internal void OnItemsChanged(object sender, NotifyCollectionEventArgs e)
{
bool plainListChanged = false;
var items = (CustomListBoxItemsCollection)sender;
var item = items.Parent;
switch(e.Event)
{
case NotifyEvent.Clear:
if(_oldItem != null)
{
InvalidateItem(_oldItem);
_oldItem = null;
}
break;
case NotifyEvent.Remove:
break;
case NotifyEvent.Set:
if(_setItemPos != -1)
{
var newitem = items[e.StartIndex];
_itemPlainList[_setItemPos] = newitem;
var y1 = GetItemY1Offset(_setItemPos);
int id = _setItemPos + 1;
if(_oldItem.IsExpanded && _oldItem.Items.Count != 0)
{
int level = _oldItem.Level;
int end = id + 1;
while(end < _itemPlainList.Count && _itemPlainList[end].Level > level)
{
++end;
}
if(_itemFocus.IsTracked)
{
if(_itemFocus.Index >= id)
{
if(_itemFocus.Index >= end)
{
_itemFocus.ResetIndex(_itemFocus.Index - (end - id));
}
else
{
_itemFocus.Drop();
}
}
}
if(_itemHover.IsTracked)
{
if(_itemHover.Index >= id)
{
if(_itemHover.Index >= end)
{
_itemHover.ResetIndex(_itemHover.Index - (end - id));
}
else
{
_itemHover.Drop();
}
}
}
_itemPlainList.RemoveRange(id, end - id);
plainListChanged = true;
}
if(newitem.IsExpanded && newitem.Items.Count != 0)
{
int end = id;
foreach(var i in newitem.Items)
{
end = InsertItem(id, i);
}
plainListChanged = true;
}
NotifyContentSizeChanged();
_setItemPos = -1;
_oldItem = null;
}
break;
case NotifyEvent.Insert:
{
bool noitems = _itemPlainList.Count == 0;
if(item == null)
{
int start = e.StartIndex;
int end = e.EndIndex;
int id = 0;
if(start != 0)
{
if(end == items.Count - 1)
{
id = _itemPlainList.Count - (end - start);
}
else
{
var sitem = items[start - 1];
while(sitem.Items.Count != 0 && sitem.IsExpanded)
{
sitem = sitem.Items[sitem.Items.Count - 1];
}
id = _itemPlainList.IndexOf(sitem) + 1;
}
}
int startId = id;
bool renderAll = id != _itemPlainList.Count;
for(int i = start; i <= end; ++i)
{
id = InsertItem(id, items[i]);
}
plainListChanged = true;
NotifyContentSizeChanged();
}
else
{
if(item.IsPresented)
{
if(item.IsExpanded)
{
int start = e.StartIndex;
int end = e.EndIndex;
int id = 0;
if(start == 0)
{
id = _itemPlainList.IndexOf(item) + 1;
}
else
{
var sitem = items[start - 1];
while(sitem.Items.Count != 0 && sitem.IsExpanded)
{
sitem = sitem.Items[sitem.Items.Count - 1];
}
id = _itemPlainList.IndexOf(sitem) + 1;
}
int startid = id;
for(int i = start; i <= end; ++i)
{
id = InsertItem(id, items[i]);
}
NotifyContentSizeChanged();
plainListChanged = true;
}
else
{
if(items.Count == e.ModifiedItems)
{
InvalidateItem(item);
}
}
}
}
if(noitems) Invalidate(_itemsArea);
}
break;
}
if(_haveAutoSizeColumns && plainListChanged)
{
InvalidateAutoSizeColumns();
}
}
private void OnSelectedItemsChanged(object sender, NotifyCollectionEventArgs e)
{
OnSelectionChanged();
}
private void OnColumnsChanged(object sender, NotifyCollectionEventArgs e)
{
UpdateAutoSizeColumnsContentWidth();
NotifyContentSizeChanged();
}
