Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / wpf / src / Framework / System / Windows / Documents / TextTreeExtractElementUndoUnit.cs / 1305600 / TextTreeExtractElementUndoUnit.cs
//---------------------------------------------------------------------------- // // File: TextTreeExtractElementUndoUnit.cs // // Description: Undo unit for TextContainer.ExtractElement calls. // // History: // 03/03/2004 : [....] - Created // //--------------------------------------------------------------------------- using System; using MS.Internal; namespace System.Windows.Documents { // Undo unit for TextContainer.ExtractElement calls. internal class TextTreeExtractElementUndoUnit : TextTreeUndoUnit { //----------------------------------------------------- // // Constructors // //----------------------------------------------------- #region Constructors // Creates a new undo unit instance. internal TextTreeExtractElementUndoUnit(TextContainer tree, TextTreeTextElementNode elementNode) : base(tree, elementNode.GetSymbolOffset(tree.Generation)) { _symbolCount = elementNode.SymbolCount; _type = elementNode.TextElement.GetType(); _localValues = GetPropertyRecordArray(elementNode.TextElement); _resources = elementNode.TextElement.Resources; // Table requires additional work for storing its Columns collection if (elementNode.TextElement is Table) { _columns = TextTreeDeleteContentUndoUnit.SaveColumns((Table)elementNode.TextElement); } } #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); end = new TextPointer(this.TextContainer, this.SymbolOffset + _symbolCount - 2, LogicalDirection.Forward); // Insert a new element. element = (TextElement)Activator.CreateInstance(_type); element.Reposition(start, end); // Restore local resources element.Resources = _resources; // Move end into the scope of the new element. end.MoveToNextContextPosition(LogicalDirection.Backward); // Then restore local property values. // this.TextContainer.SetValues(end, ArrayToLocalValueEnumerator(_localValues)); if (element is Table) { TextTreeDeleteContentUndoUnit.RestoreColumns((Table)element, _columns); } } #endregion Public Methods //------------------------------------------------------ // // Private Fields // //------------------------------------------------------ #region Private Fields // Count of symbols covered by the extracted TextElement, including its 2 edges. private readonly int _symbolCount; // Type of the extracted TextElement. private readonly Type _type; // Collection of all local property values set on the extracted TextElement. private readonly PropertyRecord []_localValues; // Resources defined locally on the TextElement private readonly ResourceDictionary _resources; // TableColumns collection private readonly TableColumn[] _columns; #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
- EnumMember.cs
- TdsParserSafeHandles.cs
- XmlSortKey.cs
- SqlPersonalizationProvider.cs
- DataGridTableCollection.cs
- Command.cs
- RangeValuePatternIdentifiers.cs
- Utils.cs
- VectorAnimation.cs
- CounterCreationDataCollection.cs
- AssociationSetMetadata.cs
- MgmtConfigurationRecord.cs
- XmlAttributeProperties.cs
- StylusPointPropertyInfoDefaults.cs
- PropertyValidationContext.cs
- PropertyConverter.cs
- StrokeSerializer.cs
- Divide.cs
- SessionIDManager.cs
- ReadOnlyNameValueCollection.cs
- SamlAuthorizationDecisionClaimResource.cs
- ListViewUpdateEventArgs.cs
- XPathBinder.cs
- MtomMessageEncodingBindingElement.cs
- metadatamappinghashervisitor.cs
- AnchoredBlock.cs
- SendMailErrorEventArgs.cs
- AnimationClockResource.cs
- ISAPIWorkerRequest.cs
- NativeMethods.cs
- SendKeys.cs
- ApplicationContext.cs
- AdornerHitTestResult.cs
- DataGridViewTextBoxEditingControl.cs
- HttpVersion.cs
- While.cs
- Function.cs
- DataViewSettingCollection.cs
- BufferModeSettings.cs
- SystemGatewayIPAddressInformation.cs
- ProxyAttribute.cs
- oledbconnectionstring.cs
- ETagAttribute.cs
- SortDescription.cs
- MultiDataTrigger.cs
- MemoryMappedViewStream.cs
- TextViewSelectionProcessor.cs
- ToolStripGripRenderEventArgs.cs
- WebPartConnectionCollection.cs
- WebPartPersonalization.cs
- ImageBrush.cs
- StylusEventArgs.cs
- Aes.cs
- DataSetSchema.cs
- HtmlListAdapter.cs
- TableLayoutStyle.cs
- SqlDataSource.cs
- DataGridViewCellConverter.cs
- TemplateField.cs
- IIS7WorkerRequest.cs
- relpropertyhelper.cs
- SecuritySessionClientSettings.cs
- Internal.cs
- BindStream.cs
- SoapObjectInfo.cs
- TypeToArgumentTypeConverter.cs
- ListenerConnectionDemuxer.cs
- GridViewCommandEventArgs.cs
- ExternalException.cs
- ButtonField.cs
- XmlCharCheckingWriter.cs
- DBCSCodePageEncoding.cs
- SystemThemeKey.cs
- HttpInputStream.cs
- InkCanvasSelectionAdorner.cs
- XPathNavigator.cs
- InfoCardRSAPKCS1KeyExchangeDeformatter.cs
- XmlCountingReader.cs
- ControlCollection.cs
- Stack.cs
- ErrorWebPart.cs
- AssertFilter.cs
- HandoffBehavior.cs
- xsdvalidator.cs
- ChannelServices.cs
- Cursors.cs
- BitmapEffectGroup.cs
- EventKeyword.cs
- ManagedWndProcTracker.cs
- Compiler.cs
- SatelliteContractVersionAttribute.cs
- XmlTypeMapping.cs
- RequiredAttributeAttribute.cs
- LayeredChannelListener.cs
- SimpleHandlerFactory.cs
- XPathAncestorQuery.cs
- TextCollapsingProperties.cs
- DataGridColumnHeaderAutomationPeer.cs
- ThicknessKeyFrameCollection.cs
- ResourcePool.cs