Code:
/ Dotnetfx_Vista_SP2 / Dotnetfx_Vista_SP2 / 8.0.50727.4016 / DEVDIV / depot / DevDiv / releases / Orcas / QFE / wpf / src / Framework / System / Windows / Documents / TextTreeExtractElementUndoUnit.cs / 1 / TextTreeExtractElementUndoUnit.cs
//---------------------------------------------------------------------------- // // File: TextTreeExtractElementUndoUnit.cs // // Description: Undo unit for TextContainer.ExtractElement calls. // // History: // 03/03/2004 : benwest - 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 = LocalValueEnumeratorToArray(elementNode.TextElement.GetLocalValueEnumerator()); _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. //---------------------------------------------------------------------------- // // File: TextTreeExtractElementUndoUnit.cs // // Description: Undo unit for TextContainer.ExtractElement calls. // // History: // 03/03/2004 : benwest - 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 = LocalValueEnumeratorToArray(elementNode.TextElement.GetLocalValueEnumerator()); _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
- CheckBoxStandardAdapter.cs
- CookieProtection.cs
- _HeaderInfoTable.cs
- DnsEndPoint.cs
- ObsoleteAttribute.cs
- HttpChannelBindingToken.cs
- MimeBasePart.cs
- InkCanvasInnerCanvas.cs
- smtppermission.cs
- SerializationEventsCache.cs
- HyperLinkDataBindingHandler.cs
- TextDpi.cs
- PrefixQName.cs
- InternalUserCancelledException.cs
- TextEditorLists.cs
- ResourceManager.cs
- MLangCodePageEncoding.cs
- RoleServiceManager.cs
- TabControl.cs
- FrameDimension.cs
- CharacterHit.cs
- _ListenerAsyncResult.cs
- StylusPlugInCollection.cs
- XmlImplementation.cs
- SchemaAttDef.cs
- UTF32Encoding.cs
- SqlCharStream.cs
- DataKeyArray.cs
- WebServiceReceive.cs
- ListViewItemSelectionChangedEvent.cs
- CalendarTable.cs
- RotateTransform3D.cs
- remotingproxy.cs
- Deflater.cs
- XmlHelper.cs
- HttpContextServiceHost.cs
- Size3D.cs
- GridViewSelectEventArgs.cs
- PackWebResponse.cs
- BufferedWebEventProvider.cs
- XmlHierarchicalDataSourceView.cs
- ToolboxComponentsCreatingEventArgs.cs
- ArgIterator.cs
- Environment.cs
- IdleTimeoutMonitor.cs
- ComAwareEventInfo.cs
- PassportPrincipal.cs
- Clipboard.cs
- WsdlInspector.cs
- LinqDataSourceStatusEventArgs.cs
- PublishLicense.cs
- AutoGeneratedFieldProperties.cs
- HtmlTextArea.cs
- ScrollData.cs
- TimersDescriptionAttribute.cs
- DataSourceCacheDurationConverter.cs
- SignerInfo.cs
- AccessDataSourceView.cs
- XPathNodeInfoAtom.cs
- PathGeometry.cs
- TextWriter.cs
- HtmlShimManager.cs
- TagPrefixAttribute.cs
- UnmanagedMemoryAccessor.cs
- ControlType.cs
- CompositeKey.cs
- CompilerWrapper.cs
- PrimaryKeyTypeConverter.cs
- SelectionWordBreaker.cs
- Relationship.cs
- RTLAwareMessageBox.cs
- WebZone.cs
- _AutoWebProxyScriptEngine.cs
- TrimSurroundingWhitespaceAttribute.cs
- thaishape.cs
- _NegotiateClient.cs
- TraceEventCache.cs
- RequestQueryParser.cs
- TemplateColumn.cs
- DrawingBrush.cs
- KeyEventArgs.cs
- XmlnsDefinitionAttribute.cs
- SkipStoryboardToFill.cs
- BitmapEffectGroup.cs
- NumberFormatInfo.cs
- DataSourceXmlClassAttribute.cs
- ExpressionBindings.cs
- MessageBox.cs
- DataTableReader.cs
- ThicknessAnimation.cs
- DefaultTypeArgumentAttribute.cs
- EnumerableRowCollection.cs
- InvalidPrinterException.cs
- Stream.cs
- SqlFacetAttribute.cs
- FreezableCollection.cs
- CustomError.cs
- ReferencedType.cs
- unsafenativemethodstextservices.cs
- COMException.cs