ReachFixedPageSerializerAsync.cs source code in C# .NET

                        Code:
                         / DotNET / DotNET / 8.0 / untmp / WIN_WINDOWS / lh_tools_devdiv_wpf / Windows / wcp / Print / Reach / Serialization / manager / ReachFixedPageSerializerAsync.cs / 1 / ReachFixedPageSerializerAsync.cs
                        
                        
                            /*++ 

    Copyright (C) 2004- 2005 Microsoft Corporation
    All rights reserved.
 
    Module Name:
        ReachFixedPageSerializerAsync.cs 
 
    Abstract:
        This file contains the definition of a class that 
        defines the common functionality required to serialize
        a FixedPage

    Author: 
        [....] ([....]) 25-May-2005
 
    Revision History: 
--*/
 
using System;
using System.Collections;
using System.Collections.Generic;
using System.Collections.Specialized; 
using System.ComponentModel;
using System.Diagnostics; 
using System.Reflection; 
using System.Xml;
using System.IO; 
using System.Printing;
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 FixedPage.
    ///  
    internal class FixedPageSerializerAsync : 
                   ReachSerializerAsync
    { 
        #region Constructor

        /// 
        /// Constructor for class FixedPageSerializer 
        /// 
        ///  
        /// The serialization manager, the services of which are 
        /// used later in the serialization process of the type.
        ///  
        public
        FixedPageSerializerAsync(
            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.endSerializeReachFixedPage: 
                    {
                        ReachFixedPageSerializerContext thisContext = context as ReachFixedPageSerializerContext; 
                        if(thisContext == null) 
                        {
 
                        }
                        EndSerializeReachFixedPage(thisContext);
                        break;
                    } 

                    default: 
                    { 
                        base.AsyncOperation(context);
                        break; 
                    }
                }
            }
        } 

        ///  
        /// The main method that is called to serialize a FixedPage. 
        /// 
        ///  
        /// Instance of object to be serialized.
        /// 
        public
        override 
        void
        SerializeObject( 
            Object serializedObject 
            )
        { 
            //
            // Create the ImageTable required by the Type Converters
            // The Image table at this time is shared / currentPage
            // 
            ((XpsSerializationManagerAsync)SerializationManager).ResourcePolicy.CurrentPageImageTable = new Dictionary();
            // 
            // Create the ColorContextTable required by the Type Converters 
            // The Image table at this time is shared / currentPage
            // 
            ((XpsSerializationManagerAsync)SerializationManager).ResourcePolicy.CurrentPageColorContextTable = new Dictionary();

            base.SerializeObject(serializedObject);
        } 

        #endregion Public Methods 
 
        #region Internal Methods
 
        /// 
        /// The main method that is called to serialize the FixedPage
        /// and that is usually called from within the serialization manager
        /// when a node in the graph of objects is at a turn where it should 
        /// be serialized.
        ///  
        ///  
        /// The context of the property being serialized at this time and
        /// it points internally to the object encapsulated by that node. 
        /// 
        internal
        override
        void 
        SerializeObject(
            SerializablePropertyContext serializedProperty 
            ) 
        {
            // 
            // Create the ImageTable required by the Type Converters
            // The Image table at this time is shared / currentPage
            //
            ((XpsSerializationManagerAsync)SerializationManager).ResourcePolicy.CurrentPageImageTable = new Dictionary(); 
            //
            // Create the ColorContextTable required by the Type Converters 
            // The Image table at this time is shared / currentPage 
            //
            ((XpsSerializationManagerAsync)SerializationManager).ResourcePolicy.CurrentPageColorContextTable = new Dictionary(); 

            base.SerializeObject(serializedProperty);
        }
 
        /// 
        /// 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");
            } 

            FixedPage fixedPage = serializableObjectContext.TargetObject as FixedPage; 
 
            if( SerializationManager is XpsSerializationManager)
            { 
               (SerializationManager as XpsSerializationManager).RegisterPageStart();
            }

            ReachTreeWalker treeWalker = new ReachTreeWalker(this); 
            treeWalker.SerializeLinksInFixedPage((FixedPage)serializableObjectContext.TargetObject);
 
            String xmlnsForType = SerializationManager.GetXmlNSForType(serializableObjectContext.TargetObject.GetType()); 

            if(xmlnsForType == null) 
            {
                XmlWriter.WriteStartElement(serializableObjectContext.Name);
            }
            else 
            {
                XmlWriter.WriteStartElement(serializableObjectContext.Name); 
 
                XmlWriter.WriteAttributeString(XpsS0Markup.Xmlns, xmlnsForType);
                XmlWriter.WriteAttributeString(XpsS0Markup.XmlnsX, XpsS0Markup.XmlnsXSchema); 

                XmlLanguage language = fixedPage.Language;
                if (language == null)
                { 
                    //If the language property is null, assign the language to the default
                    language = XmlLanguage.GetLanguage(XpsS0Markup.XmlLangValue); 
                } 

                SerializationManager.Language = language; 

                XmlWriter.WriteAttributeString(XpsS0Markup.XmlLang, language.ToString());
            }
            { 
                Size fixedPageSize = new Size(fixedPage.Width, fixedPage.Height);
                ((XpsSerializationManager)SerializationManager).FixedPageSize = fixedPageSize; 
 
                //
                // Before we serialize any properties on the FixedPage, we need to 
                // serialize the FixedPage as a Visual
                //
                Visual fixedPageAsVisual = serializableObjectContext.TargetObject as Visual;
 
                bool   needEndVisual     = false;
 
                if(fixedPageAsVisual != null) 
                {
                    needEndVisual = SerializePageAsVisual(fixedPageAsVisual); 
                }

                if (serializableObjectContext.IsComplexValue)
                { 
                    ReachSerializerContext context = new ReachFixedPageSerializerContext(this,
                                                                                         serializableObjectContext, 
                                                                                         SerializerAction.endSerializeReachFixedPage, 
                                                                                         needEndVisual,
                                                                                         treeWalker); 

                    ((XpsSerializationManagerAsync)SerializationManager).OperationStack.Push(context);

                    PrintTicket printTicket = ((XpsSerializationManager)SerializationManager).FixedPagePrintTicket; 

                    if(printTicket != null) 
                    { 
                        PrintTicketSerializer serializer = new PrintTicketSerializer(SerializationManager);
                        serializer.SerializeObject(printTicket); 
                        ((XpsSerializationManager)SerializationManager).FixedPagePrintTicket = null;
                    }

 
                    SerializeObjectCore(serializableObjectContext);
                } 
                else 
                {
                    throw new XpsSerializationException(ReachSR.Get(ReachSRID.ReachSerialization_WrongPropertyTypeForFixedPage)); 
                }

            }
        } 

        ///  
        /// This method is the one that writes out the attribute within 
        /// the xml stream when serializing simple properties.
        ///  
        /// 
        /// The property that is to be serialized as an attribute at this time.
        /// 
        internal 
        override
        void 
        WriteSerializedAttribute( 
            SerializablePropertyContext serializablePropertyContext
            ) 
        {
            if(serializablePropertyContext == null)
            {
                throw new ArgumentNullException("serializablePropertyContext"); 
            }
 
            String attributeValue = String.Empty; 

            attributeValue = GetValueOfAttributeAsString(serializablePropertyContext); 

            if ( (attributeValue != null) &&
                 (attributeValue.Length > 0) )
            { 
                //
                // Emit name="value" attribute 
                // 
                XmlWriter.WriteAttributeString(serializablePropertyContext.Name, attributeValue);
            } 
        }

        /// 
        /// Converts the Value of the Attribute to a String by calling into 
        /// the appropriate type converters.
        ///  
        ///  
        /// The property that is to be serialized as an attribute at this time.
        ///  
        private
        String
        GetValueOfAttributeAsString(
            SerializablePropertyContext serializablePropertyContext 
            )
        { 
            if(serializablePropertyContext == null) 
            {
                throw new ArgumentNullException("serializablePropertyContext"); 
            }

            String valueAsString                  = null;
            Object targetObjectContainingProperty = serializablePropertyContext.TargetObject; 
            Object propertyValue                  = serializablePropertyContext.Value;
 
            if(propertyValue != null) 
            {
                TypeConverter typeConverter = serializablePropertyContext.TypeConverter; 

                valueAsString = typeConverter.ConvertToInvariantString(new XpsTokenContext(SerializationManager,
                                                                                             serializablePropertyContext),
                                                                       propertyValue); 

 
                if (typeof(Type).IsInstanceOfType(propertyValue)) 
                {
                    int index = valueAsString.LastIndexOf('.'); 

                    if (index > 0)
                    {
                        valueAsString = valueAsString.Substring(index + 1); 
                    }
 
                    valueAsString = XpsSerializationManager.TypeOfString + valueAsString + "}"; 
                }
            } 
            else
            {
                valueAsString = XpsSerializationManager.NullString;
            } 

            return valueAsString; 
        } 

        #endregion Internal Methods 

        #region Public Properties

        ///  
        /// Queries / Set the XmlWriter for a FixedPage.
        ///  
        public 
        override
        XmlWriter 
        XmlWriter
        {
            get
            { 
                if(base.XmlWriter == null)
                { 
                    base.XmlWriter = SerializationManager.AcquireXmlWriter(typeof(FixedPage)); 
                }
 
                return base.XmlWriter;
            }

            set 
            {
                base.XmlWriter = null; 
                SerializationManager.ReleaseXmlWriter(typeof(FixedPage)); 
            }
        } 

        #endregion Public Properties

        #region Private Methods 

        private 
        bool 
        SerializePageAsVisual(
            Visual fixedPageAsVisual 
            )
        {
            bool needEndVisual = false;
 
            ReachVisualSerializerAsync serializer = new ReachVisualSerializerAsync(SerializationManager);
 
            if(serializer!=null) 
            {
                needEndVisual = serializer.SerializeDisguisedVisual(fixedPageAsVisual); 
            }
            else
            {
                throw new XpsSerializationException(ReachSR.Get(ReachSRID.ReachSerialization_NoSerializer)); 
            }
 
            return needEndVisual; 
        }
 
        private
        void
        EndSerializeReachFixedPage(
            ReachFixedPageSerializerContext context 
            )
        { 
            ReachFixedPageSerializerContext thisContext = context as ReachFixedPageSerializerContext; 

            if(thisContext != null) 
            {
                if(thisContext.EndVisual)
                {
                    XmlWriter           pageWriter  = ((XpsSerializationManagerAsync)SerializationManager). 
                                                      PackagingPolicy.AcquireXmlWriterForPage();
 
                    XmlWriter           resWriter   = ((XpsSerializationManagerAsync)SerializationManager). 
                                                      PackagingPolicy.AcquireXmlWriterForResourceDictionary();
 

                    Size fixedPageSize = ((XpsSerializationManager)SerializationManager).FixedPageSize;
                    VisualTreeFlattener flattener  = ((XpsSerializationManagerAsync)SerializationManager).
                                                      VisualSerializationService.AcquireVisualTreeFlattener(resWriter, 
                                                                                                            pageWriter,
                                                                                                            fixedPageSize); 
 
                    flattener.EndVisual();
                } 


                ((XpsSerializationManagerAsync)SerializationManager).PackagingPolicy.PreCommitCurrentPage();
 
                //
                // Copy hyperlinks into stream 
                // 
                thisContext.TreeWalker.CommitHyperlinks();
 
                XmlWriter.WriteEndElement();
                //
                //Release used resources
                // 
                XmlWriter = null;
                // 
                // Free the image table in use for this page 
                //
                ((XpsSerializationManagerAsync)SerializationManager).ResourcePolicy.CurrentPageImageTable = null; 
                //
                // Free the colorContext table in use for this page
                //
                ((XpsSerializationManagerAsync)SerializationManager).ResourcePolicy.CurrentPageColorContextTable = null; 

                // 
                // Signal to any registered callers that the Page has been serialized 
                //
                XpsSerializationProgressChangedEventArgs progressEvent = 
                new XpsSerializationProgressChangedEventArgs(XpsWritingProgressChangeLevel.FixedPageWritingProgress,
                                                             0,
                                                             0,
                                                             null); 

                ((XpsSerializationManager)SerializationManager).OnXPSSerializationProgressChanged(progressEvent); 
                ((XpsSerializationManagerAsync)SerializationManager).VisualSerializationService.ReleaseVisualTreeFlattener(); 
                if( SerializationManager is XpsSerializationManager)
                { 
                   (SerializationManager as XpsSerializationManager).RegisterPageEnd();
                }
            }
 
        }
 
 
        #endregion Private Methods
    }; 

    internal class ReachFixedPageSerializerContext :
                   ReachSerializerContext
    { 
        public
        ReachFixedPageSerializerContext( 
            ReachSerializerAsync        serializer, 
            SerializableObjectContext   objectContext,
            SerializerAction            action, 
            bool                        endVisual,
            ReachTreeWalker             treeWalker
            ):
            base(serializer,objectContext,action) 
        {
            this._treeWalker = treeWalker; 
            this._endVisual  = endVisual; 
        }
 

        public
        ReachTreeWalker
        TreeWalker 
        {
            get 
            { 
                return _treeWalker;
            } 
        }

        public
        bool 
        EndVisual
        { 
            get 
            {
                return _endVisual; 
            }
        }

        private 
        bool                _endVisual;
 
        private 
        ReachTreeWalker     _treeWalker;
    }; 
}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
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