Code:
/ DotNET / DotNET / 8.0 / untmp / WIN_WINDOWS / lh_tools_devdiv_wpf / Windows / wcp / Framework / System / Windows / Documents / TextTreeInsertElementUndoUnit.cs / 1 / TextTreeInsertElementUndoUnit.cs
//---------------------------------------------------------------------------- // // File: TextTreeInsertElementUndoUnit.cs // // Description: Undo unit for TextContainer.InsertElement calls. // // History: // 03/03/2004 : [....] - Created // //--------------------------------------------------------------------------- using System; using MS.Internal; namespace System.Windows.Documents { // Undo unit for TextContainer.InsertElement calls. internal class TextTreeInsertElementUndoUnit : TextTreeUndoUnit { //----------------------------------------------------- // // Constructors // //----------------------------------------------------- #region Constructors // Creates a new undo unit instance. // symbolOffset should be just before the start edge of the TextElement to remove. // If deep is true, this unit will undo not only the scoping element // insert, but also all content scoped by the element. internal TextTreeInsertElementUndoUnit(TextContainer tree, int symbolOffset, bool deep) : base(tree, symbolOffset) { _deep = deep; } #endregion Constructors //------------------------------------------------------ // // Public Methods // //----------------------------------------------------- #region Public Methods // Called by the undo manager. Restores tree state to its condition // when the unit was created. Assumes the tree state matches conditions // just after the unit was created. public override void DoCore() { TextPointer start; TextPointer end; TextElement element; VerifyTreeContentHashCode(); start = new TextPointer(this.TextContainer, this.SymbolOffset, LogicalDirection.Forward); Invariant.Assert(start.GetPointerContext(LogicalDirection.Forward) == TextPointerContext.ElementStart, "TextTree undo unit out of sync with TextTree."); element = start.GetAdjacentElementFromOuterPosition(LogicalDirection.Forward); if (_deep) { // Extract the element and its content. end = new TextPointer(this.TextContainer, element.TextElementNode, ElementEdge.AfterEnd); this.TextContainer.DeleteContentInternal(start, end); } else { // Just extract the element, not its content. this.TextContainer.ExtractElementInternal(element); } } #endregion Public Methods //------------------------------------------------------ // // Private Fields // //------------------------------------------------------ #region Private Fields // If true, this unit tracks a TextElement and its scoped content. // Otherwise, this unit only tracks the TextElement. private readonly bool _deep; #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
- OutOfProcStateClientManager.cs
- ParameterToken.cs
- CacheDependency.cs
- TimeSpanConverter.cs
- DataGridViewAccessibleObject.cs
- Mappings.cs
- ElementNotAvailableException.cs
- FreezableOperations.cs
- TableSectionStyle.cs
- DataSourceCacheDurationConverter.cs
- CodePageUtils.cs
- InternalRelationshipCollection.cs
- ToolStripPanelCell.cs
- JournalEntryListConverter.cs
- OleStrCAMarshaler.cs
- RelationshipManager.cs
- ThousandthOfEmRealDoubles.cs
- XmlHierarchicalEnumerable.cs
- Tile.cs
- PresentationSource.cs
- VSWCFServiceContractGenerator.cs
- StringComparer.cs
- ProfessionalColors.cs
- OracleConnection.cs
- TileModeValidation.cs
- XPathDocumentNavigator.cs
- MonitoringDescriptionAttribute.cs
- ReceiveActivityDesigner.cs
- ThreadStartException.cs
- Vector3DAnimation.cs
- HtmlHistory.cs
- XomlSerializationHelpers.cs
- DataGridViewCellValueEventArgs.cs
- DispatcherExceptionEventArgs.cs
- TransformDescriptor.cs
- OciLobLocator.cs
- SignatureToken.cs
- mda.cs
- WindowsScrollBarBits.cs
- TraceListener.cs
- XmlQueryContext.cs
- WebPartChrome.cs
- TextHintingModeValidation.cs
- SmiEventSink_Default.cs
- XpsThumbnail.cs
- BamlStream.cs
- FileClassifier.cs
- OleDbDataAdapter.cs
- DataExchangeServiceBinder.cs
- SystemException.cs
- SQLInt64Storage.cs
- PageDeviceFont.cs
- TextBounds.cs
- TemplateNameScope.cs
- TextWriter.cs
- ModelUIElement3D.cs
- HtmlUtf8RawTextWriter.cs
- ClassDataContract.cs
- CodeFieldReferenceExpression.cs
- DoWorkEventArgs.cs
- DbExpressionBuilder.cs
- GeneralTransform3D.cs
- DataBindingExpressionBuilder.cs
- MimeTypePropertyAttribute.cs
- ParallelTimeline.cs
- CodeSnippetExpression.cs
- XmlSchemaComplexContent.cs
- WorkflowOperationBehavior.cs
- TrustLevel.cs
- Attributes.cs
- CodeTypeDeclarationCollection.cs
- IndexedWhereQueryOperator.cs
- RenderData.cs
- SoapMessage.cs
- TraceHandler.cs
- DataPagerCommandEventArgs.cs
- MatrixAnimationUsingKeyFrames.cs
- DEREncoding.cs
- CompiledQueryCacheEntry.cs
- FrameworkTextComposition.cs
- PreloadHost.cs
- EncoderBestFitFallback.cs
- XmlTextReaderImplHelpers.cs
- WebScriptClientGenerator.cs
- FrameDimension.cs
- ContainerControl.cs
- BinaryObjectInfo.cs
- ZipIOZip64EndOfCentralDirectoryLocatorBlock.cs
- FrameworkElementFactoryMarkupObject.cs
- VerificationAttribute.cs
- documentation.cs
- WebPartConnectionsDisconnectVerb.cs
- SignatureHelper.cs
- DrawingCollection.cs
- BindingExpression.cs
- ErrorWebPart.cs
- MsmqDecodeHelper.cs
- VarRemapper.cs
- CompileXomlTask.cs
- ColumnResizeUndoUnit.cs