private void FakeTab(Point drahPosition)
{
TabItem replaceItem = null;
foreach (TabItem tab in Items)
{
Rect tabRect = TabItemRect(tab);
if (tabRect.Contains(drahPosition))
{
replaceItem = tab;
break;
}
}
if (replaceItem != null)
{
TabberItem tabberItem = replaceItem as TabberItem;
if (tabberItem != null && !tabberItem.Pin && (oldReplaceItem == null || !oldReplaceItem.Equals(replaceItem)))
{
oldReplaceItem = replaceItem;
int shadowIndex = shadowItem != null?Items.IndexOf(shadowItem) : -1;
if (shadowItem == null)
{
shadowItem = new ShadowTabberItem();
shadowItem.Header = new string(' ', 24);
}
int replaceItemIndex = Items.IndexOf(replaceItem);
if (shadowIndex > -1 && shadowIndex < replaceItemIndex)
{
Items.Remove(replaceItem);
Items.Insert(shadowIndex, replaceItem);
}
else
{
Items.Remove(shadowItem);
Items.Insert(replaceItemIndex, shadowItem);
}
shadowItem.IsSelected = true;
}
}
else if ((Items[Items.Count - 1] as ShadowTabberItem) == null)
{
if (shadowItem == null)
{
shadowItem = new ShadowTabberItem();
shadowItem.Header = new string(' ', 24);
Items.Add(shadowItem);
}
else
{
Items.Remove(shadowItem);
Items.Add(shadowItem);
}
oldReplaceItem = null;
shadowItem.IsSelected = true;
}
}
public TabberControl()
: base()
{
firstSort = true;
mainTabberIsEmpty = false;
lastSelectedItem = null;
shadowItem = null;
Loaded += TabberControl_Loaded;
Unloaded += TabberControl_Unloaded;
}
internal void Move(ContentWindow window)
{
if (object.ReferenceEquals(window, currentWindow))
{
return;
}
if (mainTabberIsEmpty)
{
if (EmptyItemsPanelRect(window.GetDragItem())
.Contains(window.GetDragPosition()))
{
FocusOrderWindow(window);
if (shadowItem == null)
{
shadowItem = new ShadowTabberItem();
shadowItem.Header = new string(' ', 24);
Items.Add(shadowItem);
shadowItem.IsSelected = true;
}
}
else
{
if (shadowItem != null)
{
Items.Remove(shadowItem);
shadowItem = null;
}
}
}
else
{
if (ItemsPanelRect()
.Contains(window.GetDragPosition()))
{
FocusOrderWindow(window);
FakeTab(window.GetDragPosition());
}
else
{
if (shadowItem != null)
{
Items.Remove(shadowItem);
shadowItem = null;
lastSelectedItem.IsSelected = true;
}
oldReplaceItem = null;
}
}
}
internal void Enter(ContentWindow window)
{
if (object.ReferenceEquals(window, currentWindow))
{
return;
}
mainTabberIsEmpty = (currentWindow as ContentWindow) == null && Items.Count < 1;
if (!mainTabberIsEmpty)
{
foreach (TabItem item in Items)
{
if (item.IsSelected)
{
lastSelectedItem = item;
break;
}
}
}
shadowItem = null;
}