Code:
/ Dotnetfx_Win7_3.5.1 / Dotnetfx_Win7_3.5.1 / 3.5.1 / DEVDIV / depot / DevDiv / releases / Orcas / NetFXw7 / wpf / src / Framework / System / Windows / Documents / TextTreeInsertUndoUnit.cs / 1 / TextTreeInsertUndoUnit.cs
//---------------------------------------------------------------------------- // // File: TextTreeInsertUndoUnit.cs // // Description: Undo unit for TextContainer.InsertText and InsertEmbeddedObject calls. // // History: // 03/03/2004 : benwest - Created // //--------------------------------------------------------------------------- using System; using MS.Internal; namespace System.Windows.Documents { // Undo unit for TextContainer.InsertText and InsertEmbeddedObject calls. internal class TextTreeInsertUndoUnit : TextTreeUndoUnit { //----------------------------------------------------- // // Constructors // //----------------------------------------------------- #region Constructors // Create a new undo unit instance. // symbolOffset and symbolCount track the offset of the inserted content // and its symbol count, respectively. internal TextTreeInsertUndoUnit(TextContainer tree, int symbolOffset, int symbolCount) : base(tree, symbolOffset) { Invariant.Assert(symbolCount > 0, "Creating no-op insert undo unit!"); _symbolCount = symbolCount; } #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; VerifyTreeContentHashCode(); start = new TextPointer(this.TextContainer, this.SymbolOffset, LogicalDirection.Forward); end = new TextPointer(this.TextContainer, this.SymbolOffset + _symbolCount, LogicalDirection.Forward); this.TextContainer.DeleteContentInternal(start, end); } #endregion Public Methods //------------------------------------------------------ // // Private Fields // //------------------------------------------------------ #region Private Fields // Count of symbols to remove. private readonly int _symbolCount; #endregion Private Fields } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved. //---------------------------------------------------------------------------- // // File: TextTreeInsertUndoUnit.cs // // Description: Undo unit for TextContainer.InsertText and InsertEmbeddedObject calls. // // History: // 03/03/2004 : benwest - Created // //--------------------------------------------------------------------------- using System; using MS.Internal; namespace System.Windows.Documents { // Undo unit for TextContainer.InsertText and InsertEmbeddedObject calls. internal class TextTreeInsertUndoUnit : TextTreeUndoUnit { //----------------------------------------------------- // // Constructors // //----------------------------------------------------- #region Constructors // Create a new undo unit instance. // symbolOffset and symbolCount track the offset of the inserted content // and its symbol count, respectively. internal TextTreeInsertUndoUnit(TextContainer tree, int symbolOffset, int symbolCount) : base(tree, symbolOffset) { Invariant.Assert(symbolCount > 0, "Creating no-op insert undo unit!"); _symbolCount = symbolCount; } #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; VerifyTreeContentHashCode(); start = new TextPointer(this.TextContainer, this.SymbolOffset, LogicalDirection.Forward); end = new TextPointer(this.TextContainer, this.SymbolOffset + _symbolCount, LogicalDirection.Forward); this.TextContainer.DeleteContentInternal(start, end); } #endregion Public Methods //------------------------------------------------------ // // Private Fields // //------------------------------------------------------ #region Private Fields // Count of symbols to remove. private readonly int _symbolCount; #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
- Errors.cs
- InputManager.cs
- StreamReader.cs
- NetworkStream.cs
- COM2DataTypeToManagedDataTypeConverter.cs
- QualifiedCellIdBoolean.cs
- WebHttpBindingCollectionElement.cs
- Helper.cs
- StorageEndPropertyMapping.cs
- TextTreeNode.cs
- SafeSystemMetrics.cs
- List.cs
- ToolStripContentPanelRenderEventArgs.cs
- AutomationPatternInfo.cs
- TriState.cs
- DataContract.cs
- MSAANativeProvider.cs
- HtmlContainerControl.cs
- SqlDelegatedTransaction.cs
- Sql8ConformanceChecker.cs
- PrintingPermission.cs
- Label.cs
- HtmlInputControl.cs
- ChangeToolStripParentVerb.cs
- ToolStripRendererSwitcher.cs
- BaseAddressPrefixFilterElementCollection.cs
- DefaultValueTypeConverter.cs
- DesignerHelpers.cs
- TraceEventCache.cs
- MTConfigUtil.cs
- SqlUDTStorage.cs
- XmlRootAttribute.cs
- CookieParameter.cs
- ArcSegment.cs
- CodeCommentStatementCollection.cs
- InvokeHandlers.cs
- AutomationAttributeInfo.cs
- Barrier.cs
- WebPartDisplayModeCancelEventArgs.cs
- DSACryptoServiceProvider.cs
- CompiledXpathExpr.cs
- Int16.cs
- ProcessModule.cs
- ConditionalAttribute.cs
- UnionExpr.cs
- RoutingTable.cs
- ContextMenuAutomationPeer.cs
- AccessDataSourceWizardForm.cs
- MessageDecoder.cs
- GraphicsPath.cs
- ObjectView.cs
- EncoderNLS.cs
- loginstatus.cs
- FontResourceCache.cs
- DisplayMemberTemplateSelector.cs
- FormsAuthenticationUser.cs
- dtdvalidator.cs
- SymbolType.cs
- HttpCacheVary.cs
- SqlSupersetValidator.cs
- TextEditorLists.cs
- InputLangChangeEvent.cs
- CodeDomConfigurationHandler.cs
- CodeParameterDeclarationExpression.cs
- DataGridTableCollection.cs
- TextProperties.cs
- xsdvalidator.cs
- StateManagedCollection.cs
- ConnectionStringsSection.cs
- ChannelTerminatedException.cs
- WebExceptionStatus.cs
- PersonalizationProviderHelper.cs
- Triplet.cs
- TransformerInfo.cs
- BamlBinaryReader.cs
- NetTcpSection.cs
- ConfigurationPropertyAttribute.cs
- ValidationSummary.cs
- NameScope.cs
- Overlapped.cs
- StringAnimationUsingKeyFrames.cs
- OptimizedTemplateContent.cs
- Section.cs
- NativeMethods.cs
- ActivityDesignerAccessibleObject.cs
- UnaryExpression.cs
- WithParamAction.cs
- PowerEase.cs
- XPathScanner.cs
- SettingsProviderCollection.cs
- safePerfProviderHandle.cs
- XmlDataSourceNodeDescriptor.cs
- ConfigurationValue.cs
- XmlKeywords.cs
- ComPlusInstanceProvider.cs
- InputMethodStateChangeEventArgs.cs
- ContentPlaceHolder.cs
- ProxyAttribute.cs
- NamedPipeProcessProtocolHandler.cs
- TableLayoutPanelCellPosition.cs