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
- TreeViewCancelEvent.cs
- QilFactory.cs
- XhtmlBasicLiteralTextAdapter.cs
- Error.cs
- TextDecorationLocationValidation.cs
- BitVec.cs
- TableRowCollection.cs
- Camera.cs
- BitmapSizeOptions.cs
- HttpConfigurationContext.cs
- StylusCollection.cs
- PolyLineSegment.cs
- AssociationEndMember.cs
- DirectoryRootQuery.cs
- XmlDomTextWriter.cs
- DbProviderSpecificTypePropertyAttribute.cs
- DataGridState.cs
- MetabaseServerConfig.cs
- HierarchicalDataSourceControl.cs
- ScriptControlManager.cs
- HtmlWindow.cs
- CompositeFontInfo.cs
- objectquery_tresulttype.cs
- CubicEase.cs
- Parser.cs
- CodeParameterDeclarationExpression.cs
- XmlSignatureProperties.cs
- odbcmetadatacollectionnames.cs
- FlowchartDesigner.xaml.cs
- QilStrConcat.cs
- XmlSiteMapProvider.cs
- GridViewSelectEventArgs.cs
- ClientFormsAuthenticationCredentials.cs
- MachineKeySection.cs
- ImmutablePropertyDescriptorGridEntry.cs
- MultipartContentParser.cs
- NavigationService.cs
- FixedSOMTextRun.cs
- SuppressMergeCheckAttribute.cs
- RegisteredScript.cs
- RoleManagerModule.cs
- XPathSingletonIterator.cs
- CharAnimationUsingKeyFrames.cs
- SqlDependencyListener.cs
- DataGridViewCheckBoxColumn.cs
- MenuItemStyle.cs
- followingsibling.cs
- AppDomainShutdownMonitor.cs
- ServiceHttpModule.cs
- WsdlBuildProvider.cs
- DesignerLinkAdapter.cs
- ThemeDirectoryCompiler.cs
- ToolStripDropDownClosingEventArgs.cs
- FamilyTypefaceCollection.cs
- SimpleApplicationHost.cs
- ContainerUIElement3D.cs
- WindowsClaimSet.cs
- UnmanagedMemoryStream.cs
- BinaryMethodMessage.cs
- ControlEvent.cs
- ValidationUtility.cs
- StyleConverter.cs
- PostBackTrigger.cs
- Site.cs
- TextViewBase.cs
- DataBindingCollectionConverter.cs
- RectValueSerializer.cs
- OdbcInfoMessageEvent.cs
- DataServiceHostFactory.cs
- ProxyHwnd.cs
- CodeObject.cs
- PropertyIDSet.cs
- SoapAttributeOverrides.cs
- ToolStripOverflowButton.cs
- DateTimeOffsetStorage.cs
- DesignTimeTemplateParser.cs
- DetailsViewRowCollection.cs
- AsymmetricSignatureFormatter.cs
- DataBindingHandlerAttribute.cs
- TextPointer.cs
- UndoEngine.cs
- EventLogPermissionAttribute.cs
- SigningCredentials.cs
- PolyLineSegment.cs
- ElementAction.cs
- SettingsPropertyCollection.cs
- SourceElementsCollection.cs
- UIElement.cs
- EpmHelper.cs
- TraversalRequest.cs
- OledbConnectionStringbuilder.cs
- SkinBuilder.cs
- DataGridViewMethods.cs
- IntSecurity.cs
- DataColumn.cs
- MetadataCollection.cs
- BmpBitmapDecoder.cs
- SqlConnectionString.cs
- CheckBoxAutomationPeer.cs
- HMACSHA256.cs