Code:
/ Dotnetfx_Vista_SP2 / Dotnetfx_Vista_SP2 / 8.0.50727.4016 / DEVDIV / depot / DevDiv / releases / Orcas / QFE / 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
- Walker.cs
- DataControlFieldCollection.cs
- WorkflowDefinitionContext.cs
- XmlHierarchyData.cs
- TextViewDesigner.cs
- ProviderConnectionPointCollection.cs
- NamedPipeConnectionPoolSettingsElement.cs
- ContextMarshalException.cs
- OrderedDictionary.cs
- GB18030Encoding.cs
- MenuBindingsEditorForm.cs
- HttpFileCollectionBase.cs
- CreateUserWizard.cs
- ButtonBaseAutomationPeer.cs
- Compilation.cs
- FormViewUpdateEventArgs.cs
- HttpResponseHeader.cs
- LocalValueEnumerator.cs
- XmlFormatExtensionAttribute.cs
- NullReferenceException.cs
- _DigestClient.cs
- LambdaCompiler.cs
- NullRuntimeConfig.cs
- ParseHttpDate.cs
- InvalidPrinterException.cs
- SessionState.cs
- PtsContext.cs
- PathData.cs
- activationcontext.cs
- Int16Converter.cs
- RoamingStoreFile.cs
- CodeValidator.cs
- ThumbButtonInfoCollection.cs
- EventDriven.cs
- DragDeltaEventArgs.cs
- FileNotFoundException.cs
- TextContainerChangeEventArgs.cs
- FormsIdentity.cs
- FontStretch.cs
- CustomUserNameSecurityTokenAuthenticator.cs
- FragmentNavigationEventArgs.cs
- Path.cs
- LowerCaseStringConverter.cs
- CapabilitiesSection.cs
- QilTypeChecker.cs
- EventDescriptor.cs
- Table.cs
- ObjectStateEntryDbDataRecord.cs
- XmlSchemaSubstitutionGroup.cs
- TransactionProtocol.cs
- DataRowView.cs
- LiteralControl.cs
- ValidationEventArgs.cs
- SmiXetterAccessMap.cs
- SystemResourceKey.cs
- PictureBox.cs
- Frame.cs
- WasAdminWrapper.cs
- __ComObject.cs
- SimpleBitVector32.cs
- PropertyDescriptorGridEntry.cs
- HttpCookieCollection.cs
- WebPartConnectionsEventArgs.cs
- DownloadProgressEventArgs.cs
- NotImplementedException.cs
- DbProviderFactory.cs
- PreviewPrintController.cs
- SequenceFullException.cs
- DataRowChangeEvent.cs
- HttpModuleCollection.cs
- MarkupObject.cs
- DropShadowEffect.cs
- ImageMapEventArgs.cs
- SubclassTypeValidator.cs
- SqlProfileProvider.cs
- SubclassTypeValidator.cs
- _CookieModule.cs
- AtomPub10CategoriesDocumentFormatter.cs
- FrameworkElement.cs
- ReadOnlyHierarchicalDataSource.cs
- NavigatorInput.cs
- GeneralTransformGroup.cs
- XmlSchemaDatatype.cs
- PathFigure.cs
- InitializingNewItemEventArgs.cs
- GroupBox.cs
- DataObject.cs
- Control.cs
- NameValueFileSectionHandler.cs
- CodeCompileUnit.cs
- FieldInfo.cs
- ISAPIApplicationHost.cs
- RC2.cs
- BrowserTree.cs
- Win32NamedPipes.cs
- Quaternion.cs
- DateTimeFormatInfo.cs
- DataGridViewColumn.cs
- DataRelationCollection.cs
- SiteOfOriginPart.cs