Code:
/ DotNET / DotNET / 8.0 / untmp / WIN_WINDOWS / lh_tools_devdiv_wpf / Windows / wcp / Print / Reach / Serialization / manager / ReachUIElementCollectionSerializerAsync.cs / 1 / ReachUIElementCollectionSerializerAsync.cs
/*++ Copyright (C) 2004- 2005 Microsoft Corporation All rights reserved. Module Name: ReachUIElementCollectionSerializerAsync.cs Abstract: This file contains the definition of a class that defines the common functionality required to serialize a UIElementCollection Author: [....] ([....]) 20-May-2004 Revision History: --*/ using System; using System.Collections; using System.Collections.Specialized; using System.ComponentModel; using System.Diagnostics; using System.Reflection; using System.Xml; using System.IO; using System.Security; using System.Security.Permissions; using System.ComponentModel.Design.Serialization; using System.Windows.Xps.Packaging; using System.Windows.Documents; using System.Windows.Media; using System.Windows.Markup; namespace System.Windows.Xps.Serialization { ////// Class defining common functionality required to /// serialize a UIElementCollection. /// internal class ReachUIElementCollectionSerializerAsync : ReachSerializerAsync { #region Constructor ////// Constructor for class ReachUIElementCollectionSerializer /// /// /// The serialization manager, the services of which are /// used later in the serialization process of the type. /// public ReachUIElementCollectionSerializerAsync( PackageSerializationManager manager ): base(manager) { } #endregion Constructor #region Public Methods public override void AsyncOperation( ReachSerializerContext context ) { if(context == null) { } switch (context.Action) { case SerializerAction.endPersistObjectData: { EndPersistObjectData(); break; } case SerializerAction.serializeNextUIElement: { UIElementCollectionSerializerContext thisContext = context as UIElementCollectionSerializerContext; if(thisContext != null) { SerializeNextUIElement(thisContext.Enumerator, thisContext.ObjectContext); } break; } default: { base.AsyncOperation(context); break; } } } ////// The main method that is called to serialize a UIElementCollection. /// /// /// Instance of object to be serialized. /// public override void SerializeObject( Object serializedObject ) { base.SerializeObject(serializedObject); } #endregion Public Methods #region Internal Methods ////// The method is called once the object data is discovered at that /// point of the serialization process. /// /// /// The context of the object to be serialized at this time. /// internal override void PersistObjectData( SerializableObjectContext serializableObjectContext ) { if (serializableObjectContext == null) { throw new ArgumentNullException("serializableObjectContext"); } IEnumerable enumerableObject = serializableObjectContext.TargetObject as IEnumerable; if (enumerableObject == null) { throw new XpsSerializationException(ReachSR.Get(ReachSRID.MustBeOfType, "serializableObjectContext.TargetObject", typeof(IEnumerable))); } // // Serialize the PageContent Items contained within the collection // SerializeUIElements(serializableObjectContext); } #endregion Internal Methods #region Private Methods ////// This is being called to serialize the Page Content items /// contained within the collection /// private void SerializeUIElements( SerializableObjectContext serializableObjectContext ) { // // Serialize each PageContent in PageContentCollection // IEnumerator enumerator = ((IEnumerable)serializableObjectContext.TargetObject).GetEnumerator(); enumerator.Reset(); UIElementCollectionSerializerContext context = new UIElementCollectionSerializerContext(this, serializableObjectContext, enumerator, SerializerAction.serializeNextUIElement); ((XpsSerializationManagerAsync)SerializationManager).OperationStack.Push(context); } private void SerializeNextUIElement( IEnumerator enumerator, SerializableObjectContext serializableObjectContext ) { if(enumerator.MoveNext()) { UIElementCollectionSerializerContext context = new UIElementCollectionSerializerContext(this, serializableObjectContext, enumerator, SerializerAction.serializeNextUIElement); ((XpsSerializationManagerAsync)SerializationManager).OperationStack.Push(context); object uiElement = enumerator.Current; SerializeUIElement(uiElement); } } ////// Called to serialize a single UIElement /// private void SerializeUIElement( object uiElement ) { Visual visual = uiElement as Visual; if(visual != null) { ReachSerializer serializer = SerializationManager.GetSerializer(visual); if(serializer!=null) { serializer.SerializeObject(visual); } else { throw new XpsSerializationException(ReachSR.Get(ReachSRID.ReachSerialization_NoSerializer)); } } } #endregion Private Methods }; internal class UIElementCollectionSerializerContext : ReachSerializerContext { public UIElementCollectionSerializerContext( ReachSerializerAsync serializer, SerializableObjectContext objectContext, IEnumerator enumerator, SerializerAction action ): base(serializer,objectContext,action) { this._enumerator = enumerator; } public IEnumerator Enumerator { get { return _enumerator; } } private IEnumerator _enumerator; }; } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. 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