Code:
/ Dotnetfx_Vista_SP2 / Dotnetfx_Vista_SP2 / 8.0.50727.4016 / DEVDIV / depot / DevDiv / releases / Orcas / QFE / wpf / src / Framework / System / Windows / Documents / FlowNode.cs / 1 / FlowNode.cs
//---------------------------------------------------------------------------- //// Copyright (C) 2003 by Microsoft Corporation. All rights reserved. // // // Description: // FlowNode represents a structural node for a flow document. They // are inserted into a content flow backing store content flow their // relative orders signal the content flow order. // // History: // 11/03/2003 - Zhenbin Xu (ZhenbinX) - Created. // //--------------------------------------------------------------------------- namespace System.Windows.Documents { using System; using System.Diagnostics; //===================================================================== ////// FlowNode represents a structural node in the Flow Order of a fixed document. /// They are inserted into a content flow backing store (the Flow Order) to /// represent a flow order view of the fixed document. Their relative position /// in the Flow Order indicates their relative reading order. /// /// A FlowNode is identified by its ScopeId and is compared by its relative position /// in the Flow Order (Fp). /// /// Content structure and scope can be deduced from the Flow Order. /// For instance /// S1 S2 R2 E2 E1 /// would indicate element 1 (S1-E1) is the parent of element 2 (S1-E2) /// internal sealed class FlowNode : IComparable { //------------------------------------------------------------------- // // Connstructors // //---------------------------------------------------------------------- #region Constructors internal FlowNode(int scopeId, FlowNodeType type, object cookie) { // // If cookie is FixedElement, you have to set it later, otherwise, // please set it here. // In that case, cookie will be set as a FixedElement later. // It cann't be set here because of the circular reference. // // // We don't allow to create a glyph node with zero run length. // it will lots of problem in textOM due to some assumption there. // Debug.Assert( (type != FlowNodeType.Run) || ((int)cookie != 0)); _scopeId = scopeId; _type = type; _cookie = cookie; } #endregion Constructors //------------------------------------------------------------------- // // Public Methods // //---------------------------------------------------------------------- #region Public Methods // force object comparision public static bool IsNull(FlowNode flow) { return (object)flow == null; } ////// ///int - hash code public override int GetHashCode() { return _scopeId.GetHashCode()^_fp.GetHashCode(); } ////// Compares this FlowNode with the passed in object /// /// The object to compare to "this" ///bool - true if the FlowNodes are equal, false otherwise public override bool Equals(object o) { if (o == null || this.GetType() != o.GetType()) { return false; } FlowNode fn = (FlowNode)o; Debug.Assert(_fp != fn._fp || (_fp == fn._fp) && (_scopeId == fn._scopeId)); return (this._fp == fn._fp); } ////// Compare the flow order of this FlowNode to another FlowNode /// /// FlowNode to compare to ///-1, 0, 1 public int CompareTo(object o) { if (o == null) { throw new ArgumentNullException("o"); } FlowNode fp = o as FlowNode; if (fp == null) { throw new ArgumentException(SR.Get(SRID.UnexpectedParameterType, o.GetType(), typeof(FlowNode)), "o"); } if (Object.ReferenceEquals(this, fp)) { return 0; } int fd = this._fp - fp._fp; if (fd == 0) { return 0; } else if (fd < 0) { return -1; } else { return 1; } } #if DEBUG ////// Create a string representation of this object /// ///string - A string representation of this object public override string ToString() { int page = -1; switch (_type) { case FlowNodeType.Boundary: case FlowNodeType.Start: case FlowNodeType.End: case FlowNodeType.Object: { FixedElement element = _cookie as FixedElement; if (element != null) { page = element.PageIndex; } break; } case FlowNodeType.Virtual: case FlowNodeType.Noop: { page = (int) _cookie; break; } case FlowNodeType.Run: { if (this.FixedSOMElements != null && this.FixedSOMElements.Length > 0) { page = this.FixedSOMElements[0].FixedNode.Page; } break; } default: break; } return String.Format("Pg{0}-nCp{1}-Id{2}-Tp{3}", page, _fp, _scopeId, System.Enum.GetName(typeof(FlowNodeType), _type)); } #endif #endregion Public Methods //-------------------------------------------------------------------- // // Public Properties // //--------------------------------------------------------------------- //-------------------------------------------------------------------- // // Public Events // //--------------------------------------------------------------------- //------------------------------------------------------------------- // // Internal Methods // //--------------------------------------------------------------------- #region Internal Methods // // Note: Make these explicit method so that it won't be used mistakenly // Only FixedTextBuilder can modify Fp // internal void SetFp(int fp) { _fp = fp; } internal void IncreaseFp() { _fp++; } internal void DecreaseFp() { _fp--; } #endregion Internal Methods //-------------------------------------------------------------------- // // Internal Properties // //--------------------------------------------------------------------- #region Internal Properties // Get/Set position within flow order internal int Fp { get { return _fp; } } // Get the scope to which this node belongs internal int ScopeId { get { return _scopeId; } } // Get the Flag associated with this node internal FlowNodeType Type { get { return _type; } } // Get/Set the cookie associated with this position. // Higher level protocol decides what to put inside // the cookie internal object Cookie { get { return _cookie; } } internal FixedSOMElement[] FixedSOMElements { get { return _elements; } set { _elements = value; } } internal void AttachElement(FixedElement fixedElement) { _cookie = fixedElement; } #endregion Internal Properties //-------------------------------------------------------------------- // // Private Fields // //---------------------------------------------------------------------- #region Private Fields private readonly int _scopeId; // Node Identifier private readonly FlowNodeType _type; // type of the node private int _fp; // Position in flow private object _cookie; // Associated object private FixedSOMElement[] _elements; // Used for mapping between fixed and flow representations #endregion Private Fields } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved. //---------------------------------------------------------------------------- //// Copyright (C) 2003 by Microsoft Corporation. All rights reserved. // // // Description: // FlowNode represents a structural node for a flow document. They // are inserted into a content flow backing store content flow their // relative orders signal the content flow order. // // History: // 11/03/2003 - Zhenbin Xu (ZhenbinX) - Created. // //--------------------------------------------------------------------------- namespace System.Windows.Documents { using System; using System.Diagnostics; //===================================================================== ////// FlowNode represents a structural node in the Flow Order of a fixed document. /// They are inserted into a content flow backing store (the Flow Order) to /// represent a flow order view of the fixed document. Their relative position /// in the Flow Order indicates their relative reading order. /// /// A FlowNode is identified by its ScopeId and is compared by its relative position /// in the Flow Order (Fp). /// /// Content structure and scope can be deduced from the Flow Order. /// For instance /// S1 S2 R2 E2 E1 /// would indicate element 1 (S1-E1) is the parent of element 2 (S1-E2) /// internal sealed class FlowNode : IComparable { //------------------------------------------------------------------- // // Connstructors // //---------------------------------------------------------------------- #region Constructors internal FlowNode(int scopeId, FlowNodeType type, object cookie) { // // If cookie is FixedElement, you have to set it later, otherwise, // please set it here. // In that case, cookie will be set as a FixedElement later. // It cann't be set here because of the circular reference. // // // We don't allow to create a glyph node with zero run length. // it will lots of problem in textOM due to some assumption there. // Debug.Assert( (type != FlowNodeType.Run) || ((int)cookie != 0)); _scopeId = scopeId; _type = type; _cookie = cookie; } #endregion Constructors //------------------------------------------------------------------- // // Public Methods // //---------------------------------------------------------------------- #region Public Methods // force object comparision public static bool IsNull(FlowNode flow) { return (object)flow == null; } ////// ///int - hash code public override int GetHashCode() { return _scopeId.GetHashCode()^_fp.GetHashCode(); } ////// Compares this FlowNode with the passed in object /// /// The object to compare to "this" ///bool - true if the FlowNodes are equal, false otherwise public override bool Equals(object o) { if (o == null || this.GetType() != o.GetType()) { return false; } FlowNode fn = (FlowNode)o; Debug.Assert(_fp != fn._fp || (_fp == fn._fp) && (_scopeId == fn._scopeId)); return (this._fp == fn._fp); } ////// Compare the flow order of this FlowNode to another FlowNode /// /// FlowNode to compare to ///-1, 0, 1 public int CompareTo(object o) { if (o == null) { throw new ArgumentNullException("o"); } FlowNode fp = o as FlowNode; if (fp == null) { throw new ArgumentException(SR.Get(SRID.UnexpectedParameterType, o.GetType(), typeof(FlowNode)), "o"); } if (Object.ReferenceEquals(this, fp)) { return 0; } int fd = this._fp - fp._fp; if (fd == 0) { return 0; } else if (fd < 0) { return -1; } else { return 1; } } #if DEBUG ////// Create a string representation of this object /// ///string - A string representation of this object public override string ToString() { int page = -1; switch (_type) { case FlowNodeType.Boundary: case FlowNodeType.Start: case FlowNodeType.End: case FlowNodeType.Object: { FixedElement element = _cookie as FixedElement; if (element != null) { page = element.PageIndex; } break; } case FlowNodeType.Virtual: case FlowNodeType.Noop: { page = (int) _cookie; break; } case FlowNodeType.Run: { if (this.FixedSOMElements != null && this.FixedSOMElements.Length > 0) { page = this.FixedSOMElements[0].FixedNode.Page; } break; } default: break; } return String.Format("Pg{0}-nCp{1}-Id{2}-Tp{3}", page, _fp, _scopeId, System.Enum.GetName(typeof(FlowNodeType), _type)); } #endif #endregion Public Methods //-------------------------------------------------------------------- // // Public Properties // //--------------------------------------------------------------------- //-------------------------------------------------------------------- // // Public Events // //--------------------------------------------------------------------- //------------------------------------------------------------------- // // Internal Methods // //--------------------------------------------------------------------- #region Internal Methods // // Note: Make these explicit method so that it won't be used mistakenly // Only FixedTextBuilder can modify Fp // internal void SetFp(int fp) { _fp = fp; } internal void IncreaseFp() { _fp++; } internal void DecreaseFp() { _fp--; } #endregion Internal Methods //-------------------------------------------------------------------- // // Internal Properties // //--------------------------------------------------------------------- #region Internal Properties // Get/Set position within flow order internal int Fp { get { return _fp; } } // Get the scope to which this node belongs internal int ScopeId { get { return _scopeId; } } // Get the Flag associated with this node internal FlowNodeType Type { get { return _type; } } // Get/Set the cookie associated with this position. // Higher level protocol decides what to put inside // the cookie internal object Cookie { get { return _cookie; } } internal FixedSOMElement[] FixedSOMElements { get { return _elements; } set { _elements = value; } } internal void AttachElement(FixedElement fixedElement) { _cookie = fixedElement; } #endregion Internal Properties //-------------------------------------------------------------------- // // Private Fields // //---------------------------------------------------------------------- #region Private Fields private readonly int _scopeId; // Node Identifier private readonly FlowNodeType _type; // type of the node private int _fp; // Position in flow private object _cookie; // Associated object private FixedSOMElement[] _elements; // Used for mapping between fixed and flow representations #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
- FlowLayoutPanel.cs
- BitmapPalette.cs
- StylusPointProperties.cs
- RemotingServices.cs
- BitmapDecoder.cs
- TcpProcessProtocolHandler.cs
- GetPageNumberCompletedEventArgs.cs
- XmlSchemaRedefine.cs
- SafeNativeMemoryHandle.cs
- FixedDocumentPaginator.cs
- DBConnection.cs
- NestedContainer.cs
- UIElement.cs
- DurableInstance.cs
- IInstanceContextProvider.cs
- ToolStripOverflowButton.cs
- SByteStorage.cs
- ParenthesizePropertyNameAttribute.cs
- SyndicationElementExtension.cs
- FormViewCommandEventArgs.cs
- Compiler.cs
- BuildProviderAppliesToAttribute.cs
- Options.cs
- Accessible.cs
- ColumnResult.cs
- FileDialog.cs
- HttpRequestWrapper.cs
- _ContextAwareResult.cs
- PeerTransportSecuritySettings.cs
- ClientRolePrincipal.cs
- TextEditorThreadLocalStore.cs
- TaskFileService.cs
- RoutedUICommand.cs
- CornerRadiusConverter.cs
- ContextInformation.cs
- VoiceSynthesis.cs
- DataSourceExpression.cs
- StringDictionary.cs
- InstanceHandle.cs
- HtmlElementEventArgs.cs
- TypeKeyValue.cs
- LicenseException.cs
- CancelRequestedRecord.cs
- RayHitTestParameters.cs
- DifferencingCollection.cs
- UserControlCodeDomTreeGenerator.cs
- Point3DAnimationBase.cs
- Bezier.cs
- WorkflowInstance.cs
- SortableBindingList.cs
- Track.cs
- NullableFloatSumAggregationOperator.cs
- TextMarkerSource.cs
- ObjectItemAssemblyLoader.cs
- EventArgs.cs
- MultipartContentParser.cs
- InstanceCreationEditor.cs
- UniqueIdentifierService.cs
- ExecutionContext.cs
- Walker.cs
- HwndAppCommandInputProvider.cs
- ThemeableAttribute.cs
- XhtmlBasicValidatorAdapter.cs
- PermissionListSet.cs
- DataSourceCacheDurationConverter.cs
- BuildResult.cs
- BasePropertyDescriptor.cs
- CompatibleIComparer.cs
- UserPreferenceChangingEventArgs.cs
- TdsParameterSetter.cs
- ScaleTransform3D.cs
- Section.cs
- TextTreeTextElementNode.cs
- ScrollPattern.cs
- DataProviderNameConverter.cs
- Point3D.cs
- FillErrorEventArgs.cs
- Walker.cs
- ToolboxItemFilterAttribute.cs
- DiagnosticEventProvider.cs
- KeyBinding.cs
- XmlSchemaAll.cs
- Point3DCollection.cs
- ResourceDefaultValueAttribute.cs
- CurrencyManager.cs
- RawMouseInputReport.cs
- CatalogPartCollection.cs
- RefreshPropertiesAttribute.cs
- AssemblyResourceLoader.cs
- WhitespaceRuleReader.cs
- ToolStripDropDownClosingEventArgs.cs
- XmlSerializableWriter.cs
- NestedContainer.cs
- SiteMap.cs
- PartialArray.cs
- SQLResource.cs
- MatrixCamera.cs
- PartialTrustVisibleAssemblyCollection.cs
- CustomPopupPlacement.cs
- TextAutomationPeer.cs