protected override void ClearItems()
{
try
{
_owningGrid.NoCurrentCellChangeCount++;
if (ItemsInternal.Count > 0)
{
if (_owningGrid.InDisplayIndexAdjustments)
{
// We are within columns display indexes adjustments. We do not allow changing the column collection while adjusting display indexes.
throw DataGridError.DataGrid.CannotChangeColumnCollectionWhileAdjustingDisplayIndexes();
}
_owningGrid.OnClearingColumns();
for (int columnIndex = 0; columnIndex < ItemsInternal.Count; columnIndex++)
{
// Detach the column...
ItemsInternal[columnIndex].OwningGrid = null;
}
ItemsInternal.Clear();
DisplayIndexMap.Clear();
AutogeneratedColumnCount = 0;
_owningGrid.OnColumnCollectionChanged_PreNotification(false /*columnsGrew*/);
base.ClearItems();
VisibleEdgedColumnsWidth = 0;
_owningGrid.OnColumnCollectionChanged_PostNotification(false /*columnsGrew*/);
}
}
finally
{
_owningGrid.NoCurrentCellChangeCount--;
}
}
public void SaveChanges()
{
foreach (var item in ItemsInternal.Where(i => GetKey(i) == 0))
{
SetKey(item, ItemsInternal.Max(GetKey) + 1);
}
}
/// <summary>
/// Moves the child node.
/// </summary>
/// <param name="fromIndex">From index.</param>
/// <param name="toIndex">To index.</param>
public void MoveChildNode(int fromIndex, int toIndex)
{
ItemsInternal.Move(fromIndex, toIndex);
if (IsAttached)
{
InvalidateSceneGraph();
}
}
/// <summary>
/// Clears this instance.
/// </summary>
public virtual void Clear()
{
for (var i = 0; i < Items.Count; ++i)
{
Items[i].Detach();
Items[i].Parent = null;
}
itemHashSet.Clear();
ItemsInternal.Clear();
}
public void Remove(int productId)
{
var item = Items.SingleOrDefault(x => x.ProductId == productId);
if (item == null)
{
return;
}
ItemsInternal.Remove(item);
}
public override IEnumerator <TResult> GetEnumerator()
{
if (ObservableExtensions.KeepOrder)
{
return(ItemsInternal.GetEnumerator());
}
else
{
return(ItemsUnordered.GetEnumerator());
}
}
/// <summary>
/// Clears this instance.
/// </summary>
public void Clear()
{
for (int i = 0; i < ItemsInternal.Count; ++i)
{
ItemsInternal[i].Detach();
ItemsInternal[i].Parent = null;
}
ItemsInternal.Clear();
itemHashSet.Clear();
Cleared?.Invoke(this, new OnChildNodeChangedArgs(null, Operation.Clear));
}
/// <summary>
/// Transfers the child node from current group node to another group node.
/// </summary>
/// <param name="targetGroup">The target group.</param>
/// <param name="node">The node.</param>
/// <returns></returns>
public bool TransferChildNode(SceneNode node, GroupNodeBase targetGroup)
{
if (targetGroup == this || !itemHashSet.Remove(node.GUID))
{
return(false);
}
ItemsInternal.Remove(node);
node.Parent = null;
InvalidateSceneGraph();
ChildNodeRemoved?.Invoke(this, new OnChildNodeChangedArgs(node, Operation.Remove));
return(targetGroup.AddChildNode(node));
}
public DirItem FindTopLevelDir(DirectoryInfo dir)
{
while (dir != null)
{
var parent = ItemsInternal.FirstOrDefault(p => p.AbsolutePath == dir.FullName);
if (parent != null)
{
return(parent as DirItem);
}
dir = dir.Parent;
}
return(null);
}
protected override void InsertItem(int columnIndex, DataGridColumn dataGridColumn)
{
try
{
_owningGrid.NoCurrentCellChangeCount++;
if (_owningGrid.InDisplayIndexAdjustments)
{
// We are within columns display indexes adjustments. We do not allow changing the column collection while adjusting display indexes.
throw DataGridError.DataGrid.CannotChangeColumnCollectionWhileAdjustingDisplayIndexes();
}
if (dataGridColumn == null)
{
throw new ArgumentNullException("dataGridColumn");
}
int columnIndexWithFiller = columnIndex;
if (dataGridColumn != RowGroupSpacerColumn && RowGroupSpacerColumn.IsRepresented)
{
columnIndexWithFiller++;
}
// get the new current cell coordinates
DataGridCellCoordinates newCurrentCellCoordinates = _owningGrid.OnInsertingColumn(columnIndex, dataGridColumn);
// insert the column into our internal list
ItemsInternal.Insert(columnIndexWithFiller, dataGridColumn);
dataGridColumn.Index = columnIndexWithFiller;
dataGridColumn.OwningGrid = _owningGrid;
dataGridColumn.RemoveEditingElement();
if (dataGridColumn.IsVisible)
{
VisibleEdgedColumnsWidth += dataGridColumn.ActualWidth;
}
// continue with the base insert
_owningGrid.OnInsertedColumn_PreNotification(dataGridColumn);
_owningGrid.OnColumnCollectionChanged_PreNotification(true /*columnsGrew*/);
if (dataGridColumn != RowGroupSpacerColumn)
{
base.InsertItem(columnIndex, dataGridColumn);
}
_owningGrid.OnInsertedColumn_PostNotification(newCurrentCellCoordinates, dataGridColumn.DisplayIndex);
_owningGrid.OnColumnCollectionChanged_PostNotification(true /*columnsGrew*/);
}
finally
{
_owningGrid.NoCurrentCellChangeCount--;
}
}
public void Add(int productId, int quantity = 1)
{
var item = Items.SingleOrDefault(x => x.ProductId == productId);
if (item == null)
{
item = new ShoppingCartItem(productId, quantity);
ItemsInternal.Add(item);
}
else
{
item.Quantity += quantity;
}
}
/// <summary>
/// Removes the child node.
/// </summary>
/// <param name="node">The node.</param>
/// <returns></returns>
public virtual bool RemoveChildNode(SceneNode2D node)
{
if (itemHashSet.Remove(node.GUID))
{
node.Detach();
ItemsInternal.Remove(node);
node.Parent = null;
return(true);
}
else
{
return(false);
}
}
/// <summary>
/// Removes the child node.
/// </summary>
/// <param name="node">The node.</param>
/// <returns></returns>
public bool RemoveChildNode(SceneNode node)
{
if (node != null && itemHashSet.Remove(node.GUID))
{
node.Detach();
ItemsInternal.Remove(node);
node.Parent = null;
ChildNodeRemoved?.Invoke(this, new OnChildNodeChangedArgs(node, Operation.Remove));
return(true);
}
else
{
return(false);
}
}
/// <summary>
/// Inserts the child node.
/// </summary>
/// <param name="index">The index.</param>
/// <param name="node">The node.</param>
/// <returns></returns>
public bool InsertChildNode(int index, SceneNode node)
{
if (node == null || node.IsAttached || itemHashSet.ContainsKey(node.GUID))
{
return(false);
}
itemHashSet.Add(node.GUID, node);
ItemsInternal.Insert(index, node);
node.Parent = this;
if (IsAttached)
{
node.Attach(EffectsManager);
InvalidateSceneGraph();
}
ChildNodeAdded?.Invoke(this, new OnChildNodeChangedArgs(node, Operation.Add));
return(true);
}
public virtual bool AddChildNode(SceneNode2D node)
{
if (!itemHashSet.ContainsKey(node.GUID))
{
itemHashSet.Add(node.GUID, node);
ItemsInternal.Add(node);
node.Parent = this;
if (IsAttached)
{
node.Attach(RenderHost);
}
return(true);
}
else
{
return(false);
}
}
public void AddItem(Item item)
{
item.StateChanged += (ii, state) =>
{
if (!ii.IsTransferEnd() || !ItemsInternal.All(iii => iii.IsTransferEnd()))
{
return;
}
TransferState = ItemsInternal.Any(iii => iii.TransferState == TransferState.Error)
?TransferState.Error
: TransferState.Completed;
if (TransferState == TransferState.Completed)
{
TransferredLength = Length;
}
};
ItemsInternal.Add(item);
}
private void RemoveItemPrivate(int columnIndex, bool isSpacer)
{
try
{
_owningGrid.NoCurrentCellChangeCount++;
if (_owningGrid.InDisplayIndexAdjustments)
{
// We are within columns display indexes adjustments. We do not allow changing the column collection while adjusting display indexes.
throw DataGridError.DataGrid.CannotChangeColumnCollectionWhileAdjustingDisplayIndexes();
}
int columnIndexWithFiller = columnIndex;
if (!isSpacer && RowGroupSpacerColumn.IsRepresented)
{
columnIndexWithFiller++;
}
DataGridColumn dataGridColumn = ItemsInternal[columnIndexWithFiller];
DataGridCellCoordinates newCurrentCellCoordinates = _owningGrid.OnRemovingColumn(dataGridColumn);
ItemsInternal.RemoveAt(columnIndexWithFiller);
if (dataGridColumn.IsVisible)
{
VisibleEdgedColumnsWidth -= dataGridColumn.ActualWidth;
}
dataGridColumn.OwningGrid = null;
dataGridColumn.RemoveEditingElement();
// continue with the base remove
_owningGrid.OnRemovedColumn_PreNotification(dataGridColumn);
_owningGrid.OnColumnCollectionChanged_PreNotification(false /*columnsGrew*/);
if (!isSpacer)
{
base.RemoveItem(columnIndex);
}
_owningGrid.OnRemovedColumn_PostNotification(newCurrentCellCoordinates);
_owningGrid.OnColumnCollectionChanged_PostNotification(false /*columnsGrew*/);
}
finally
{
_owningGrid.NoCurrentCellChangeCount--;
}
}
public AbstractFileItem FindItem(string itemId)
{
var item = ItemsInternal.FirstOrDefault(c => c.Id == itemId);
if (item != null)
{
return(item as AbstractFileItem);
}
//如果不是顶层的Item,先找到顶层的Dir.
var path = Util.FromBase64(itemId);
var fi = new FileInfo(path);
var dir = fi.Exists ? fi.Directory : new DirectoryInfo(path);
if (!dir.Exists)
{
return(null);
}
var topLevelDir = FindTopLevelDir(dir);
var af1 = topLevelDir?.FindChildRecursive(dir, itemId);
return(af1);
}
internal DataGridColumn GetNextColumn(DataGridColumn dataGridColumnStart,
bool?isVisible, bool?isFrozen, bool?isReadOnly)
{
Debug.Assert(dataGridColumnStart != null);
Debug.Assert(ItemsInternal.Contains(dataGridColumnStart));
Debug.Assert(ItemsInternal.Count == DisplayIndexMap.Count);
int index = dataGridColumnStart.DisplayIndexWithFiller + 1;
while (index < DisplayIndexMap.Count)
{
DataGridColumn dataGridColumn = GetColumnAtDisplayIndex(index);
if ((isVisible == null || (dataGridColumn.IsVisible) == isVisible) &&
(isFrozen == null || dataGridColumn.IsFrozen == isFrozen) &&
(isReadOnly == null || dataGridColumn.IsReadOnly == isReadOnly))
{
return(dataGridColumn);
}
index++;
}
return(null);
}
/// <summary>
/// OnPreRender event handler.
/// </summary>
protected override void OnPreRender(EventArgs e)
{
base.OnPreRender(e);
// Create the breadcrumbs
if (ItemsInternal.Count > 0)
{
if (!HideBreadcrumbs)
{
pnlBreadCrumbs.Visible = true;
// Generate the breadcrumbs controls
int breadCrumbsLength = ItemsInternal.Count;
for (int i = 0; i < breadCrumbsLength; i++)
{
CreateBreadCrumbsItem(ItemsInternal[i], (i + 1 == breadCrumbsLength));
}
}
var last = ItemsInternal.Last();
if (String.IsNullOrEmpty(last.RedirectUrl))
{
last.RedirectUrl = URLHelper.UrlEncodeQueryString(RequestContext.CurrentURL);
}
if (PropagateToMainNavigation)
{
// Register breadcrumbs data for client code and start BreadcrumbsDataSource JS module
RequestContext.ClientApplication.Add("breadcrumbs", new
{
Reframe = ChangeTargetFrame,
Data = ItemsInternal
});
}
}
}
/// <summary>
/// Adds the child node.
/// </summary>
/// <param name="node">The node.</param>
/// <returns></returns>
/// <exception cref="System.ArgumentException">SceneNode already attach to a different node</exception>
public bool AddChildNode(SceneNode node)
{
if (node != null && !itemHashSet.ContainsKey(node.GUID))
{
itemHashSet.Add(node.GUID, node);
ItemsInternal.Add(node);
if (node.Parent != NullSceneNode.NullNode && node.Parent != this)
{
throw new ArgumentException("SceneNode already attach to a different node");
}
node.Parent = this;
if (IsAttached)
{
node.Attach(EffectsManager);
InvalidateSceneGraph();
}
ChildNodeAdded?.Invoke(this, new OnChildNodeChangedArgs(node, Operation.Add));
return(true);
}
else
{
return(false);
}
}
protected virtual void Sort(IList <SceneNode> nodes, RenderContext context)
{
sortingTransparentCache.Clear();
sortingOpaqueCache.Clear();
notSorted.Clear();
Vector3 cameraPosition = context.Camera.Position;
if (SortTransparentOnly)
{
for (int i = 0; i < nodes.Count; ++i)
{
if (nodes[i].RenderCore.RenderType == RenderType.Transparent)
{
sortingTransparentCache.Add(new SortStruct(GetDistance(nodes[i], ref cameraPosition), nodes[i]));
}
else
{
notSorted.Add(nodes[i]);
}
}
sortingTransparentCache.Sort(delegate(SortStruct a, SortStruct b) { return(a.Key > b.Key ? -1 : a.Key < b.Key ? 1 : 0); });
}
else
{
for (int i = 0; i < nodes.Count; ++i)
{
if (nodes[i].RenderCore.RenderType == RenderType.Transparent)
{
sortingTransparentCache.Add(new SortStruct(GetDistance(nodes[i], ref cameraPosition), nodes[i]));
}
else if (nodes[i].RenderCore.RenderType == RenderType.Opaque)
{
sortingOpaqueCache.Add(new SortStruct(GetDistance(nodes[i], ref cameraPosition), nodes[i]));
}
else
{
notSorted.Add(nodes[i]);
}
}
if (sortingTransparentCache.Count > 50 && sortingOpaqueCache.Count > 50)
{
Parallel.Invoke(() =>
{
sortingTransparentCache.Sort(delegate(SortStruct a, SortStruct b) { return(a.Key > b.Key ? -1 : a.Key < b.Key ? 1 : 0); });
}, () =>
{
sortingOpaqueCache.Sort(delegate(SortStruct a, SortStruct b) { return(a.Key > b.Key ? 1 : a.Key < b.Key ? -1 : 0); });
});
}
else
{
sortingTransparentCache.Sort(delegate(SortStruct a, SortStruct b) { return(a.Key > b.Key ? -1 : a.Key < b.Key ? 1 : 0); });
sortingOpaqueCache.Sort(delegate(SortStruct a, SortStruct b) { return(a.Key > b.Key ? 1 : a.Key < b.Key ? -1 : 0); });
}
}
ItemsInternal.Clear();
for (int i = 0; i < notSorted.Count; ++i)
{
ItemsInternal.Add(notSorted[i]);
}
for (int i = 0; i < sortingOpaqueCache.Count; ++i)
{
ItemsInternal.Add(sortingOpaqueCache[i].Value);
}
for (int i = 0; i < sortingTransparentCache.Count; ++i)
{
ItemsInternal.Add(sortingTransparentCache[i].Value);
}
sortingTransparentCache.Clear();
sortingOpaqueCache.Clear();
notSorted.Clear();
InvalidateSceneGraph();
}
public override IEnumerator <TResult> GetEnumerator()
{
return(ItemsInternal.GetEnumerator());
}
public IEnumerable <TEntity> EnumerateItems()
{
return(ItemsInternal.ToList());
}
private void Clear()
{
ItemsInternal.Clear();
UpdateItems();
}
public void UpdateItems()
{
ItemsInternal.RemoveAll(x => x.Quantity == 0);
}
