Code:
/ Dotnetfx_Vista_SP2 / Dotnetfx_Vista_SP2 / 8.0.50727.4016 / DEVDIV / depot / DevDiv / releases / Orcas / QFE / 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
- Icon.cs
- MultiView.cs
- Sql8ExpressionRewriter.cs
- DockProviderWrapper.cs
- CfgRule.cs
- SchemaDeclBase.cs
- LinearKeyFrames.cs
- DocumentAutomationPeer.cs
- ScalarOps.cs
- ZipIOExtraFieldPaddingElement.cs
- SwitchElementsCollection.cs
- ContentPlaceHolder.cs
- ExpressionBindingCollection.cs
- OperationCanceledException.cs
- LockedHandleGlyph.cs
- EntityViewGenerationAttribute.cs
- KeyInstance.cs
- Int32EqualityComparer.cs
- TextSearch.cs
- FixedPageAutomationPeer.cs
- MergePropertyDescriptor.cs
- MultiPageTextView.cs
- ServicePointManagerElement.cs
- ExpressionEditorAttribute.cs
- FontSizeConverter.cs
- EmptyImpersonationContext.cs
- OpCellTreeNode.cs
- CurrencyWrapper.cs
- ThreadExceptionDialog.cs
- GeneralTransform3DCollection.cs
- Storyboard.cs
- MaterializeFromAtom.cs
- SamlEvidence.cs
- NullableDoubleSumAggregationOperator.cs
- Mutex.cs
- TextLineResult.cs
- Model3DCollection.cs
- Color.cs
- XmlDomTextWriter.cs
- TextBoxRenderer.cs
- SerializationInfo.cs
- SqlProcedureAttribute.cs
- DoubleConverter.cs
- ISessionStateStore.cs
- Vector3DConverter.cs
- ProcessModuleCollection.cs
- LinkConverter.cs
- ContextDataSourceView.cs
- SchemaMerger.cs
- _SslState.cs
- AccessedThroughPropertyAttribute.cs
- SqlCommandSet.cs
- SmiSettersStream.cs
- CompilationSection.cs
- Oid.cs
- DataList.cs
- SafeSecurityHelper.cs
- ChtmlPhoneCallAdapter.cs
- ComplusEndpointConfigContainer.cs
- base64Transforms.cs
- EdgeModeValidation.cs
- UpWmlMobileTextWriter.cs
- MetadataCache.cs
- Normalizer.cs
- IndexedString.cs
- GridSplitter.cs
- RoleManagerEventArgs.cs
- wgx_exports.cs
- ColorContextHelper.cs
- versioninfo.cs
- DataGridViewDataConnection.cs
- InternalPermissions.cs
- ParameterEditorUserControl.cs
- PageHandlerFactory.cs
- PopOutPanel.cs
- LinkedResource.cs
- Pair.cs
- XmlProcessingInstruction.cs
- LiteralControl.cs
- GetPageCompletedEventArgs.cs
- XmlElementList.cs
- Stylesheet.cs
- DbQueryCommandTree.cs
- XmlSchemaSimpleContentRestriction.cs
- PassportAuthentication.cs
- BrushMappingModeValidation.cs
- ClientCredentialsElement.cs
- NodeFunctions.cs
- PerformanceCounter.cs
- QuaternionValueSerializer.cs
- TypeConverterHelper.cs
- RowToParametersTransformer.cs
- ScriptRegistrationManager.cs
- BrowserTree.cs
- Parameter.cs
- Environment.cs
- WindowsRichEditRange.cs
- ScrollChangedEventArgs.cs
- M3DUtil.cs
- AmbiguousMatchException.cs