Code:
/ Net / Net / 3.5.50727.3053 / DEVDIV / depot / DevDiv / releases / Orcas / SP / wpf / src / Framework / System / Windows / Documents / TextTreeInsertElementUndoUnit.cs / 1 / TextTreeInsertElementUndoUnit.cs
//---------------------------------------------------------------------------- // // File: TextTreeInsertElementUndoUnit.cs // // Description: Undo unit for TextContainer.InsertElement calls. // // History: // 03/03/2004 : benwest - 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 [....] 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. //---------------------------------------------------------------------------- // // File: TextTreeInsertElementUndoUnit.cs // // Description: Undo unit for TextContainer.InsertElement calls. // // History: // 03/03/2004 : benwest - 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 [....] 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
- XmlIlTypeHelper.cs
- HttpListenerException.cs
- ExecutorLocksHeldException.cs
- UntypedNullExpression.cs
- PageTrueTypeFont.cs
- XmlArrayItemAttributes.cs
- LocalizationParserHooks.cs
- itemelement.cs
- COM2PropertyDescriptor.cs
- WriteableBitmap.cs
- AlternateViewCollection.cs
- LogManagementAsyncResult.cs
- BindingManagerDataErrorEventArgs.cs
- COM2Enum.cs
- DomainLiteralReader.cs
- PositiveTimeSpanValidator.cs
- SafeLocalMemHandle.cs
- MaskedTextBox.cs
- XmlEncodedRawTextWriter.cs
- StyleTypedPropertyAttribute.cs
- WebPartConnectionsCloseVerb.cs
- XsdDateTime.cs
- BamlTreeMap.cs
- TdsEnums.cs
- TextEmbeddedObject.cs
- OutputCacheSettings.cs
- MessagePropertyDescription.cs
- SvcFileManager.cs
- StylusDevice.cs
- MouseCaptureWithinProperty.cs
- _HeaderInfo.cs
- ForeignConstraint.cs
- PersonalizationStateInfoCollection.cs
- TypeNameConverter.cs
- ImportCatalogPart.cs
- AssociationEndMember.cs
- NumericUpDownAccelerationCollection.cs
- DataServiceExpressionVisitor.cs
- DeadCharTextComposition.cs
- SystemIPInterfaceProperties.cs
- ExpanderAutomationPeer.cs
- ConcurrencyMode.cs
- TextTreeUndo.cs
- WebBrowserBase.cs
- ClipboardData.cs
- StatusBarItem.cs
- EditCommandColumn.cs
- SelectionProcessor.cs
- ValidatingCollection.cs
- Root.cs
- HtmlObjectListAdapter.cs
- Compiler.cs
- _LazyAsyncResult.cs
- SystemResources.cs
- SecurityRuntime.cs
- CqlIdentifiers.cs
- PowerStatus.cs
- WebPartConnectVerb.cs
- X509ChainElement.cs
- EntityContainer.cs
- DataGridTableStyleMappingNameEditor.cs
- DesignBindingEditor.cs
- Internal.cs
- IHttpResponseInternal.cs
- GC.cs
- EntityDataSourceChangingEventArgs.cs
- FutureFactory.cs
- NamedPipeTransportManager.cs
- UniqueIdentifierService.cs
- CompiledIdentityConstraint.cs
- WebPartAddingEventArgs.cs
- SaveFileDialog.cs
- TextContainerChangeEventArgs.cs
- StaticSiteMapProvider.cs
- RSAPKCS1KeyExchangeFormatter.cs
- XmlSchemaInclude.cs
- DataGridViewCellCancelEventArgs.cs
- RectKeyFrameCollection.cs
- CommandBindingCollection.cs
- Rect3DConverter.cs
- DesignerRegion.cs
- FixedPageProcessor.cs
- WebSysDefaultValueAttribute.cs
- MulticastDelegate.cs
- NavigateEvent.cs
- WmlValidationSummaryAdapter.cs
- SerializationException.cs
- SafeReversePInvokeHandle.cs
- IMembershipProvider.cs
- SingleConverter.cs
- ProgressBarHighlightConverter.cs
- BasicCellRelation.cs
- GridViewRowPresenter.cs
- NameValueFileSectionHandler.cs
- CacheDependency.cs
- FloatUtil.cs
- Timeline.cs
- JpegBitmapEncoder.cs
- XmlSignatureManifest.cs
- UnsafeNativeMethodsTablet.cs