Code:
/ Net / Net / 3.5.50727.3053 / DEVDIV / depot / DevDiv / releases / Orcas / SP / 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
- Rule.cs
- EntityDataSourceColumn.cs
- returneventsaver.cs
- RoleService.cs
- CodeObject.cs
- SoapSchemaExporter.cs
- PropertyPath.cs
- SqlLiftWhereClauses.cs
- ListViewEditEventArgs.cs
- Label.cs
- TagMapCollection.cs
- HtmlLink.cs
- CompressionTransform.cs
- GridItemProviderWrapper.cs
- TagPrefixInfo.cs
- StrongNameMembershipCondition.cs
- ChangeNode.cs
- Validator.cs
- ContainerAction.cs
- HtmlToClrEventProxy.cs
- Animatable.cs
- WebPartVerbCollection.cs
- XmlSchemaComplexContentRestriction.cs
- XmlSchemaAll.cs
- ToolStripContextMenu.cs
- CharacterHit.cs
- MenuItemCollection.cs
- DtrList.cs
- CharacterMetrics.cs
- PropertyItem.cs
- BufferedStream.cs
- Region.cs
- FieldBuilder.cs
- Timer.cs
- TraceHwndHost.cs
- KeyConverter.cs
- AttachedProperty.cs
- ToolStripContainer.cs
- EntityType.cs
- BindingContext.cs
- LostFocusEventManager.cs
- SerialReceived.cs
- TableLayout.cs
- WorkflowDefinitionDispenser.cs
- MapPathBasedVirtualPathProvider.cs
- RegexBoyerMoore.cs
- RawStylusInputReport.cs
- HttpCacheVary.cs
- FullTextLine.cs
- AuthenticatingEventArgs.cs
- CommentAction.cs
- __ConsoleStream.cs
- InternalMappingException.cs
- QueryTaskGroupState.cs
- SQLString.cs
- BezierSegment.cs
- SafeEventLogWriteHandle.cs
- CapabilitiesPattern.cs
- XmlEncodedRawTextWriter.cs
- DrawingCollection.cs
- HttpConfigurationSystem.cs
- AccessKeyManager.cs
- NativeCompoundFileAPIs.cs
- UserControlParser.cs
- XmlILStorageConverter.cs
- TraceInternal.cs
- FeatureSupport.cs
- ToolbarAUtomationPeer.cs
- AttachInfo.cs
- SettingsPropertyValue.cs
- HttpProfileGroupBase.cs
- Point3DAnimation.cs
- BaseDataListPage.cs
- SslStreamSecurityUpgradeProvider.cs
- IndexOutOfRangeException.cs
- XamlInterfaces.cs
- AsymmetricAlgorithm.cs
- RTLAwareMessageBox.cs
- PreloadedPackages.cs
- FrameworkElementFactoryMarkupObject.cs
- LocatorPartList.cs
- StatusBar.cs
- TableNameAttribute.cs
- EntityDataSourceValidationException.cs
- xml.cs
- BlockUIContainer.cs
- SoapHeaderException.cs
- DataView.cs
- SequenceRange.cs
- DigitShape.cs
- FormsAuthenticationTicket.cs
- DataViewManager.cs
- Update.cs
- DateTimeOffset.cs
- QilExpression.cs
- BindingExpressionUncommonField.cs
- SqlClientWrapperSmiStream.cs
- SystemWebSectionGroup.cs
- HttpConfigurationSystem.cs
- DesignTimeVisibleAttribute.cs