Code:
/ Net / Net / 3.5.50727.3053 / DEVDIV / depot / DevDiv / releases / Orcas / SP / wpf / src / Framework / System / Windows / Documents / TextTreeRootTextBlock.cs / 1 / TextTreeRootTextBlock.cs
//---------------------------------------------------------------------------- // // File: TextTreeRootTextBlock.cs // // Description: The root node of a TextBlock splay tree. // //--------------------------------------------------------------------------- using System; using MS.Internal; using System.Collections; namespace System.Windows.Documents { // The root node of a TextBlock splay tree. internal class TextTreeRootTextBlock : SplayTreeNode { //----------------------------------------------------- // // Constructors // //----------------------------------------------------- #region Constructors // Creates a TextTreeRootTextBlock instance. internal TextTreeRootTextBlock() { TextTreeTextBlock block; // Allocate an initial block with just two characters -- one for // each edge of the root node. The block will grow when/if // additional content is added. block = new TextTreeTextBlock(2); block.InsertAtNode(this, ElementEdge.AfterStart); } #endregion Constructors //------------------------------------------------------ // // Public Methods // //----------------------------------------------------- #region Public Methods #if DEBUG // Debug-only ToString override. public override string ToString() { return ("RootTextBlock Id=" + this.DebugId); } #endif // DEBUG #endregion Public Methods //------------------------------------------------------ // // Internal Properties // //------------------------------------------------------ #region Internal Properties // The root node never has a parent node. internal override SplayTreeNode ParentNode { get { return null; } set { Invariant.Assert(false, "Can't set ParentNode on TextBlock root!"); } } // Root node of a contained tree, if any. internal override SplayTreeNode ContainedNode { get { return _containedNode; } set { _containedNode = (TextTreeTextBlock)value; } } // The root node never has sibling nodes, so the LeftSymbolCount is a // constant zero. internal override int LeftSymbolCount { get { return 0; } set { Invariant.Assert(false, "TextContainer root is never a sibling!"); } } // Count of unicode chars of all siblings preceding this node. // This property is only used by TextTreeNodes. internal override int LeftCharCount { get { return 0; } set { Invariant.Assert(value == 0); } } // The root node never has siblings, so it never has child nodes. internal override SplayTreeNode LeftChildNode { get { return null; } set { Invariant.Assert(false, "TextBlock root never has sibling nodes!"); } } // The root node never has siblings, so it never has child nodes. internal override SplayTreeNode RightChildNode { get { return null; } set { Invariant.Assert(false, "TextBlock root never has sibling nodes!"); } } // The tree generation. Not used for TextTreeRootTextBlock. internal override uint Generation { get { return 0; } set { Invariant.Assert(false, "TextTreeRootTextBlock does not track Generation!"); } } // Cached symbol offset. The root node is always at offset zero. internal override int SymbolOffsetCache { get { return 0; } set { Invariant.Assert(false, "TextTreeRootTextBlock does not track SymbolOffsetCache!"); } } // Not used for TextTreeRootTextBlock. internal override int SymbolCount { get { return -1; } set { Invariant.Assert(false, "TextTreeRootTextBlock does not track symbol count!"); } } // Count of unicode chars covered by this node and any contained nodes. // This property is only used by TextTreeNodes. internal override int IMECharCount { get { return 0; } set { Invariant.Assert(value == 0); } } #endregion Internal Properties //----------------------------------------------------- // // Private Fields // //------------------------------------------------------ #region Private Fields // Root node of a contained tree, if any. private TextTreeTextBlock _containedNode; #endregion Private Fields } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved. //---------------------------------------------------------------------------- // // File: TextTreeRootTextBlock.cs // // Description: The root node of a TextBlock splay tree. // //--------------------------------------------------------------------------- using System; using MS.Internal; using System.Collections; namespace System.Windows.Documents { // The root node of a TextBlock splay tree. internal class TextTreeRootTextBlock : SplayTreeNode { //----------------------------------------------------- // // Constructors // //----------------------------------------------------- #region Constructors // Creates a TextTreeRootTextBlock instance. internal TextTreeRootTextBlock() { TextTreeTextBlock block; // Allocate an initial block with just two characters -- one for // each edge of the root node. The block will grow when/if // additional content is added. block = new TextTreeTextBlock(2); block.InsertAtNode(this, ElementEdge.AfterStart); } #endregion Constructors //------------------------------------------------------ // // Public Methods // //----------------------------------------------------- #region Public Methods #if DEBUG // Debug-only ToString override. public override string ToString() { return ("RootTextBlock Id=" + this.DebugId); } #endif // DEBUG #endregion Public Methods //------------------------------------------------------ // // Internal Properties // //------------------------------------------------------ #region Internal Properties // The root node never has a parent node. internal override SplayTreeNode ParentNode { get { return null; } set { Invariant.Assert(false, "Can't set ParentNode on TextBlock root!"); } } // Root node of a contained tree, if any. internal override SplayTreeNode ContainedNode { get { return _containedNode; } set { _containedNode = (TextTreeTextBlock)value; } } // The root node never has sibling nodes, so the LeftSymbolCount is a // constant zero. internal override int LeftSymbolCount { get { return 0; } set { Invariant.Assert(false, "TextContainer root is never a sibling!"); } } // Count of unicode chars of all siblings preceding this node. // This property is only used by TextTreeNodes. internal override int LeftCharCount { get { return 0; } set { Invariant.Assert(value == 0); } } // The root node never has siblings, so it never has child nodes. internal override SplayTreeNode LeftChildNode { get { return null; } set { Invariant.Assert(false, "TextBlock root never has sibling nodes!"); } } // The root node never has siblings, so it never has child nodes. internal override SplayTreeNode RightChildNode { get { return null; } set { Invariant.Assert(false, "TextBlock root never has sibling nodes!"); } } // The tree generation. Not used for TextTreeRootTextBlock. internal override uint Generation { get { return 0; } set { Invariant.Assert(false, "TextTreeRootTextBlock does not track Generation!"); } } // Cached symbol offset. The root node is always at offset zero. internal override int SymbolOffsetCache { get { return 0; } set { Invariant.Assert(false, "TextTreeRootTextBlock does not track SymbolOffsetCache!"); } } // Not used for TextTreeRootTextBlock. internal override int SymbolCount { get { return -1; } set { Invariant.Assert(false, "TextTreeRootTextBlock does not track symbol count!"); } } // Count of unicode chars covered by this node and any contained nodes. // This property is only used by TextTreeNodes. internal override int IMECharCount { get { return 0; } set { Invariant.Assert(value == 0); } } #endregion Internal Properties //----------------------------------------------------- // // Private Fields // //------------------------------------------------------ #region Private Fields // Root node of a contained tree, if any. private TextTreeTextBlock _containedNode; #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
- PersonalizationProviderCollection.cs
- SqlServer2KCompatibilityCheck.cs
- SparseMemoryStream.cs
- EventHandlerService.cs
- DiscoveryReference.cs
- VideoDrawing.cs
- BStrWrapper.cs
- VersionedStreamOwner.cs
- TransformCollection.cs
- IndentedWriter.cs
- WinFormsSecurity.cs
- UnrecognizedPolicyAssertionElement.cs
- XPathDocumentBuilder.cs
- HealthMonitoringSectionHelper.cs
- DocumentXmlWriter.cs
- HatchBrush.cs
- RectangleHotSpot.cs
- SamlAssertionKeyIdentifierClause.cs
- IndexOutOfRangeException.cs
- bindurihelper.cs
- Lease.cs
- IImplicitResourceProvider.cs
- ElementMarkupObject.cs
- FlowDocumentReader.cs
- ACL.cs
- Mouse.cs
- WebPartAddingEventArgs.cs
- FileReader.cs
- DataBinder.cs
- GridViewRowPresenterBase.cs
- Substitution.cs
- SqlTransaction.cs
- InkSerializer.cs
- CanonicalXml.cs
- Span.cs
- XmlDataLoader.cs
- BamlWriter.cs
- Byte.cs
- XXXInfos.cs
- MessageAction.cs
- OptimalTextSource.cs
- RichTextBox.cs
- VisualBrush.cs
- SqlDataSource.cs
- CaseCqlBlock.cs
- AnnotationResource.cs
- ExtensionFile.cs
- CardSpaceSelector.cs
- BitmapEffectCollection.cs
- Stack.cs
- ZipPackagePart.cs
- Size3DConverter.cs
- LocalizationComments.cs
- PageBreakRecord.cs
- TypedElement.cs
- Expander.cs
- ClientBuildManagerCallback.cs
- ContentPlaceHolder.cs
- ToolStripButton.cs
- ModelItemCollection.cs
- SqlResolver.cs
- StylusPointProperties.cs
- NavigatingCancelEventArgs.cs
- _BasicClient.cs
- AppSecurityManager.cs
- WasHostedComPlusFactory.cs
- JournalEntryListConverter.cs
- BodyGlyph.cs
- DocumentViewerHelper.cs
- ControlCodeDomSerializer.cs
- ServiceModelEnumValidatorAttribute.cs
- FileIOPermission.cs
- IpcPort.cs
- EntityTypeEmitter.cs
- EpmCustomContentSerializer.cs
- HttpTransportElement.cs
- RouteValueDictionary.cs
- LabelLiteral.cs
- ScrollData.cs
- CacheEntry.cs
- TimeSpanSecondsConverter.cs
- ForeignKeyConstraint.cs
- FormatException.cs
- SourceFileInfo.cs
- ContentElementAutomationPeer.cs
- IIS7UserPrincipal.cs
- DefaultParameterValueAttribute.cs
- XmlILOptimizerVisitor.cs
- MILUtilities.cs
- PriorityItem.cs
- EpmContentSerializerBase.cs
- RangeValueProviderWrapper.cs
- TdsRecordBufferSetter.cs
- ButtonFlatAdapter.cs
- EncoderBestFitFallback.cs
- ErrorFormatter.cs
- TextSimpleMarkerProperties.cs
- keycontainerpermission.cs
- FixedSOMLineRanges.cs
- ConfigurationSection.cs