Code:
/ Net / Net / 3.5.50727.3053 / DEVDIV / depot / DevDiv / releases / Orcas / SP / wpf / src / Framework / System / Windows / Documents / TextTreeFixupNode.cs / 1 / TextTreeFixupNode.cs
//----------------------------------------------------------------------------
//
//
// Copyright (C) Microsoft Corporation. All rights reserved.
//
//
//
// Description: A special TextContainer node used to parent deleted nodes.
//
// History:
// 02/18/2004 : benwest - Created
//
//---------------------------------------------------------------------------
using System;
using MS.Internal;
namespace System.Windows.Documents
{
// TextTreeFixupNodes never actually appear in live trees. However,
// whenever nodes are removed from the tree, we parent them to a fixup
// node whose job it is to serve as a guide for any orphaned TextPositions
// that might later need to find their way back to the original tree.
internal class TextTreeFixupNode : TextTreeNode
{
//-----------------------------------------------------
//
// Constructors
//
//-----------------------------------------------------
#region Constructors
// Creates a new TextTreeFixupNode instance.
// previousNode/Edge should point to the node TextPositions will
// move to after synchronizing against the deleted content.
internal TextTreeFixupNode(TextTreeNode previousNode, ElementEdge previousEdge, TextTreeNode nextNode, ElementEdge nextEdge) :
this(previousNode, previousEdge, nextNode, nextEdge, null, null)
{
}
// Creates a new TextTreeFixupNode instance.
// This ctor should only be called when extracting a single TextTreeTextElementNode.
// previousNode/Edge should point to the node TextPositions will
// move to after synchronizing against the deleted content.
// first/lastContainedNode point to the first and last contained nodes
// of an extracted element node. Positions may move into these nodes.
internal TextTreeFixupNode(TextTreeNode previousNode, ElementEdge previousEdge, TextTreeNode nextNode, ElementEdge nextEdge,
TextTreeNode firstContainedNode, TextTreeNode lastContainedNode)
{
_previousNode = previousNode;
_previousEdge = previousEdge;
_nextNode = nextNode;
_nextEdge = nextEdge;
_firstContainedNode = firstContainedNode;
_lastContainedNode = lastContainedNode;
}
#endregion Constructors
//------------------------------------------------------
//
// Public Methods
//
//-----------------------------------------------------
#region Public Methods
#if DEBUG
// Debug-only ToString override.
public override string ToString()
{
return ("FixupNode Id=" + this.DebugId);
}
#endif // DEBUG
#endregion Public Methods
//------------------------------------------------------
//
// Public Properties
//
//------------------------------------------------------
//-----------------------------------------------------
//
// Public Events
//
//------------------------------------------------------
//-----------------------------------------------------
//
// Protected Methods
//
//-----------------------------------------------------
//-----------------------------------------------------
//
// Internal Methods
//
//------------------------------------------------------
#region Internal Methods
// Returns a shallow copy of this node.
internal override TextTreeNode Clone()
{
Invariant.Assert(false, "Unexpected call to TextTreeFixupNode.Clone!");
return null;
}
// Returns the TextPointerContext of the node.
// Because fixup nodes are never in live trees, we should never get here.
internal override TextPointerContext GetPointerContext(LogicalDirection direction)
{
Invariant.Assert(false, "Unexpected call to TextTreeFixupNode.GetPointerContext!");
return TextPointerContext.None;
}
#endregion Internal methods
//-----------------------------------------------------
//
// Internal Properties
//
//------------------------------------------------------
#region Internal Properties
// Fixup nodes never have parents.
internal override SplayTreeNode ParentNode
{
get
{
return null;
}
set
{
Invariant.Assert(false, "FixupNode");
}
}
// Fixup nodes never contain nodes.
internal override SplayTreeNode ContainedNode
{
get
{
return null;
}
set
{
Invariant.Assert(false, "FixupNode");
}
}
// Fixup nodes don't have symbol counts.
internal override int LeftSymbolCount
{
get
{
return 0;
}
set
{
Invariant.Assert(false, "FixupNode");
}
}
// Fixup nodes don't have char counts.
internal override int LeftCharCount
{
get
{
return 0;
}
set
{
Invariant.Assert(false, "FixupNode");
}
}
// Fixup nodes don't have siblings.
internal override SplayTreeNode LeftChildNode
{
get
{
return null;
}
set
{
Invariant.Assert(false, "FixupNode");
}
}
// Fixup nodes don't have siblings.
internal override SplayTreeNode RightChildNode
{
get
{
return null;
}
set
{
Invariant.Assert(false, "FixupNode");
}
}
// Fixup nodes don't have symbol counts.
internal override uint Generation
{
get
{
return 0;
}
set
{
Invariant.Assert(false, "FixupNode");
}
}
// Fixup nodes don't have symbol counts.
internal override int SymbolOffsetCache
{
get
{
return -1;
}
set
{
Invariant.Assert(false, "FixupNode");
}
}
// Fixup nodes don't have symbol counts.
internal override int SymbolCount
{
get
{
return 0;
}
set
{
Invariant.Assert(false, "FixupNode");
}
}
// Fixup nodes don't have char counts.
internal override int IMECharCount
{
get
{
return 0;
}
set
{
Invariant.Assert(false, "FixupNode");
}
}
// Fixup nodes are never referenced by TextPositions.
internal override bool BeforeStartReferenceCount
{
get
{
return false;
}
set
{
Invariant.Assert(false, "TextTreeFixupNode should never have a position reference!");
}
}
// Fixup nodes are never referenced by TextPositions.
internal override bool AfterStartReferenceCount
{
get
{
return false;
}
set
{
Invariant.Assert(false, "TextTreeFixupNode should never have a position reference!");
}
}
// Fixup nodes are never referenced by TextPositions.
internal override bool BeforeEndReferenceCount
{
get
{
return false;
}
set
{
Invariant.Assert(false, "TextTreeFixupNode should never have a position reference!");
}
}
// Fixup nodes are never referenced by TextPositions.
internal override bool AfterEndReferenceCount
{
get
{
return false;
}
set
{
Invariant.Assert(false, "TextTreeFixupNode should never have a position reference!");
}
}
// The node TextPositions with Backward gravity should move to
// when leaving the deleted content.
internal TextTreeNode PreviousNode
{
get
{
return _previousNode;
}
}
// The edge TextPositions with Backward gravity should move to
// when leaving the deleted content.
internal ElementEdge PreviousEdge
{
get
{
return _previousEdge;
}
}
// The node TextPositions with Forward gravity should move to
// when leaving the deleted content.
internal TextTreeNode NextNode
{
get
{
return _nextNode;
}
}
// The edge TextPositions with Forward gravity should move to
// when leaving the deleted content.
internal ElementEdge NextEdge
{
get
{
return _nextEdge;
}
}
// If this fixup is for a single TextElementNode extraction, this
// field is the first contained node of the extracted element node.
internal TextTreeNode FirstContainedNode
{
get
{
return _firstContainedNode;
}
}
// If this fixup is for a single TextElementNode extraction, this
// field is the last contained node of the extracted element node.
internal TextTreeNode LastContainedNode
{
get
{
return _lastContainedNode;
}
}
#endregion Internal Properties
//------------------------------------------------------
//
// Internal Events
//
//-----------------------------------------------------
//------------------------------------------------------
//
// Private Methods
//
//-----------------------------------------------------
//-----------------------------------------------------
//
// Private Properties
//
//-----------------------------------------------------
//------------------------------------------------------
//
// Private Fields
//
//-----------------------------------------------------
#region Private Fields
// The node immediately preceding the deleted content parented by this fixup node.
private readonly TextTreeNode _previousNode;
// The edge immediately preceding the deleted content parented by this fixup node.
private readonly ElementEdge _previousEdge;
// The node immediately following the deleted content parented by this fixup node.
private readonly TextTreeNode _nextNode;
// The edge immediately following the deleted content parented by this fixup node.
private readonly ElementEdge _nextEdge;
// If this fixup is for a single TextElementNode extraction, this
// field is the first contained node of the extracted element node.
private readonly TextTreeNode _firstContainedNode;
// If this fixup is for a single TextElementNode extraction, this
// field is the last contained node of the extracted element node.
private readonly TextTreeNode _lastContainedNode;
#endregion Private Fields
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
//----------------------------------------------------------------------------
//
//
// Copyright (C) Microsoft Corporation. All rights reserved.
//
//
//
// Description: A special TextContainer node used to parent deleted nodes.
//
// History:
// 02/18/2004 : benwest - Created
//
//---------------------------------------------------------------------------
using System;
using MS.Internal;
namespace System.Windows.Documents
{
// TextTreeFixupNodes never actually appear in live trees. However,
// whenever nodes are removed from the tree, we parent them to a fixup
// node whose job it is to serve as a guide for any orphaned TextPositions
// that might later need to find their way back to the original tree.
internal class TextTreeFixupNode : TextTreeNode
{
//-----------------------------------------------------
//
// Constructors
//
//-----------------------------------------------------
#region Constructors
// Creates a new TextTreeFixupNode instance.
// previousNode/Edge should point to the node TextPositions will
// move to after synchronizing against the deleted content.
internal TextTreeFixupNode(TextTreeNode previousNode, ElementEdge previousEdge, TextTreeNode nextNode, ElementEdge nextEdge) :
this(previousNode, previousEdge, nextNode, nextEdge, null, null)
{
}
// Creates a new TextTreeFixupNode instance.
// This ctor should only be called when extracting a single TextTreeTextElementNode.
// previousNode/Edge should point to the node TextPositions will
// move to after synchronizing against the deleted content.
// first/lastContainedNode point to the first and last contained nodes
// of an extracted element node. Positions may move into these nodes.
internal TextTreeFixupNode(TextTreeNode previousNode, ElementEdge previousEdge, TextTreeNode nextNode, ElementEdge nextEdge,
TextTreeNode firstContainedNode, TextTreeNode lastContainedNode)
{
_previousNode = previousNode;
_previousEdge = previousEdge;
_nextNode = nextNode;
_nextEdge = nextEdge;
_firstContainedNode = firstContainedNode;
_lastContainedNode = lastContainedNode;
}
#endregion Constructors
//------------------------------------------------------
//
// Public Methods
//
//-----------------------------------------------------
#region Public Methods
#if DEBUG
// Debug-only ToString override.
public override string ToString()
{
return ("FixupNode Id=" + this.DebugId);
}
#endif // DEBUG
#endregion Public Methods
//------------------------------------------------------
//
// Public Properties
//
//------------------------------------------------------
//-----------------------------------------------------
//
// Public Events
//
//------------------------------------------------------
//-----------------------------------------------------
//
// Protected Methods
//
//-----------------------------------------------------
//-----------------------------------------------------
//
// Internal Methods
//
//------------------------------------------------------
#region Internal Methods
// Returns a shallow copy of this node.
internal override TextTreeNode Clone()
{
Invariant.Assert(false, "Unexpected call to TextTreeFixupNode.Clone!");
return null;
}
// Returns the TextPointerContext of the node.
// Because fixup nodes are never in live trees, we should never get here.
internal override TextPointerContext GetPointerContext(LogicalDirection direction)
{
Invariant.Assert(false, "Unexpected call to TextTreeFixupNode.GetPointerContext!");
return TextPointerContext.None;
}
#endregion Internal methods
//-----------------------------------------------------
//
// Internal Properties
//
//------------------------------------------------------
#region Internal Properties
// Fixup nodes never have parents.
internal override SplayTreeNode ParentNode
{
get
{
return null;
}
set
{
Invariant.Assert(false, "FixupNode");
}
}
// Fixup nodes never contain nodes.
internal override SplayTreeNode ContainedNode
{
get
{
return null;
}
set
{
Invariant.Assert(false, "FixupNode");
}
}
// Fixup nodes don't have symbol counts.
internal override int LeftSymbolCount
{
get
{
return 0;
}
set
{
Invariant.Assert(false, "FixupNode");
}
}
// Fixup nodes don't have char counts.
internal override int LeftCharCount
{
get
{
return 0;
}
set
{
Invariant.Assert(false, "FixupNode");
}
}
// Fixup nodes don't have siblings.
internal override SplayTreeNode LeftChildNode
{
get
{
return null;
}
set
{
Invariant.Assert(false, "FixupNode");
}
}
// Fixup nodes don't have siblings.
internal override SplayTreeNode RightChildNode
{
get
{
return null;
}
set
{
Invariant.Assert(false, "FixupNode");
}
}
// Fixup nodes don't have symbol counts.
internal override uint Generation
{
get
{
return 0;
}
set
{
Invariant.Assert(false, "FixupNode");
}
}
// Fixup nodes don't have symbol counts.
internal override int SymbolOffsetCache
{
get
{
return -1;
}
set
{
Invariant.Assert(false, "FixupNode");
}
}
// Fixup nodes don't have symbol counts.
internal override int SymbolCount
{
get
{
return 0;
}
set
{
Invariant.Assert(false, "FixupNode");
}
}
// Fixup nodes don't have char counts.
internal override int IMECharCount
{
get
{
return 0;
}
set
{
Invariant.Assert(false, "FixupNode");
}
}
// Fixup nodes are never referenced by TextPositions.
internal override bool BeforeStartReferenceCount
{
get
{
return false;
}
set
{
Invariant.Assert(false, "TextTreeFixupNode should never have a position reference!");
}
}
// Fixup nodes are never referenced by TextPositions.
internal override bool AfterStartReferenceCount
{
get
{
return false;
}
set
{
Invariant.Assert(false, "TextTreeFixupNode should never have a position reference!");
}
}
// Fixup nodes are never referenced by TextPositions.
internal override bool BeforeEndReferenceCount
{
get
{
return false;
}
set
{
Invariant.Assert(false, "TextTreeFixupNode should never have a position reference!");
}
}
// Fixup nodes are never referenced by TextPositions.
internal override bool AfterEndReferenceCount
{
get
{
return false;
}
set
{
Invariant.Assert(false, "TextTreeFixupNode should never have a position reference!");
}
}
// The node TextPositions with Backward gravity should move to
// when leaving the deleted content.
internal TextTreeNode PreviousNode
{
get
{
return _previousNode;
}
}
// The edge TextPositions with Backward gravity should move to
// when leaving the deleted content.
internal ElementEdge PreviousEdge
{
get
{
return _previousEdge;
}
}
// The node TextPositions with Forward gravity should move to
// when leaving the deleted content.
internal TextTreeNode NextNode
{
get
{
return _nextNode;
}
}
// The edge TextPositions with Forward gravity should move to
// when leaving the deleted content.
internal ElementEdge NextEdge
{
get
{
return _nextEdge;
}
}
// If this fixup is for a single TextElementNode extraction, this
// field is the first contained node of the extracted element node.
internal TextTreeNode FirstContainedNode
{
get
{
return _firstContainedNode;
}
}
// If this fixup is for a single TextElementNode extraction, this
// field is the last contained node of the extracted element node.
internal TextTreeNode LastContainedNode
{
get
{
return _lastContainedNode;
}
}
#endregion Internal Properties
//------------------------------------------------------
//
// Internal Events
//
//-----------------------------------------------------
//------------------------------------------------------
//
// Private Methods
//
//-----------------------------------------------------
//-----------------------------------------------------
//
// Private Properties
//
//-----------------------------------------------------
//------------------------------------------------------
//
// Private Fields
//
//-----------------------------------------------------
#region Private Fields
// The node immediately preceding the deleted content parented by this fixup node.
private readonly TextTreeNode _previousNode;
// The edge immediately preceding the deleted content parented by this fixup node.
private readonly ElementEdge _previousEdge;
// The node immediately following the deleted content parented by this fixup node.
private readonly TextTreeNode _nextNode;
// The edge immediately following the deleted content parented by this fixup node.
private readonly ElementEdge _nextEdge;
// If this fixup is for a single TextElementNode extraction, this
// field is the first contained node of the extracted element node.
private readonly TextTreeNode _firstContainedNode;
// If this fixup is for a single TextElementNode extraction, this
// field is the last contained node of the extracted element node.
private readonly TextTreeNode _lastContainedNode;
#endregion Private Fields
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- StateMachine.cs
- DynamicPropertyHolder.cs
- SecurityDescriptor.cs
- AsyncStreamReader.cs
- ISFTagAndGuidCache.cs
- DocumentPageView.cs
- IISMapPath.cs
- FontDifferentiator.cs
- MessageQueueTransaction.cs
- ReadOnlyAttribute.cs
- QueryCacheEntry.cs
- FontCollection.cs
- HtmlTernaryTree.cs
- OperationFormatter.cs
- CompiledELinqQueryState.cs
- InvalidEnumArgumentException.cs
- MergePropertyDescriptor.cs
- FormsAuthenticationTicket.cs
- MemberDescriptor.cs
- ToolStripStatusLabel.cs
- Rotation3D.cs
- HandleCollector.cs
- PackageDocument.cs
- MultiBinding.cs
- NamespaceQuery.cs
- PointF.cs
- DataContractSerializerServiceBehavior.cs
- MarshalByValueComponent.cs
- PropertyCondition.cs
- XmlIncludeAttribute.cs
- ObjectViewFactory.cs
- InfoCardCryptoHelper.cs
- ComponentResourceKeyConverter.cs
- InputScope.cs
- Block.cs
- LocalBuilder.cs
- GenericPrincipal.cs
- NavigationService.cs
- MediaTimeline.cs
- EventNotify.cs
- PropertyTabChangedEvent.cs
- TcpTransportManager.cs
- DataControlCommands.cs
- DependencyObject.cs
- SqlDataSourceCommandEventArgs.cs
- TerminatorSinks.cs
- ProtocolException.cs
- NonParentingControl.cs
- CollectionMarkupSerializer.cs
- BamlLocalizableResourceKey.cs
- TreeNodeStyleCollection.cs
- RoleManagerSection.cs
- EmptyStringExpandableObjectConverter.cs
- ParseNumbers.cs
- M3DUtil.cs
- GridViewSortEventArgs.cs
- WebBrowserContainer.cs
- exports.cs
- XmlSchemaNotation.cs
- FastEncoder.cs
- WindowProviderWrapper.cs
- WebPartEventArgs.cs
- AlphaSortedEnumConverter.cs
- QilFunction.cs
- DiscoveryDocumentSerializer.cs
- PartialCachingAttribute.cs
- UITypeEditor.cs
- StateBag.cs
- EpmCustomContentDeSerializer.cs
- SafeSecurityHandles.cs
- Comparer.cs
- OleDbCommandBuilder.cs
- HttpCookieCollection.cs
- TemplateBuilder.cs
- RetrieveVirtualItemEventArgs.cs
- TrimSurroundingWhitespaceAttribute.cs
- CollectionViewGroupRoot.cs
- TimeSpanOrInfiniteValidator.cs
- OdbcConnectionHandle.cs
- ActivityStatusChangeEventArgs.cs
- Canvas.cs
- IFlowDocumentViewer.cs
- AnimationStorage.cs
- PointLight.cs
- DelayedRegex.cs
- _CacheStreams.cs
- configsystem.cs
- ListView.cs
- FormatException.cs
- DropShadowEffect.cs
- SingleSelectRootGridEntry.cs
- LongTypeConverter.cs
- ReadWriteSpinLock.cs
- RSACryptoServiceProvider.cs
- categoryentry.cs
- PresentationUIStyleResources.cs
- SR.cs
- ArraySet.cs
- DispatcherFrame.cs
- recordstatefactory.cs