ReachVisualSerializer.cs source code in C# .NET

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

    Copyright (C) 2004- 2005 Microsoft Corporation
    All rights reserved.
 
    Module Name:
        ReachVisualSerializer.cs 
 
    Abstract:
 
    Author:
        [....] ([....]) 1-December-2004

    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.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.Media.Media3D;
using System.Windows.Markup; 

namespace System.Windows.Xps.Serialization 
{ 
    /// 
    /// 
    /// 
    internal class ReachVisualSerializer :
                   ReachSerializer
    { 
        /// 
        /// 
        ///  
        public
        ReachVisualSerializer( 
            PackageSerializationManager manager
            ):
        base(manager)
        { 
        }
 
        ///  
        ///
        ///  
        public
        override
        void
        SerializeObject( 
            object serializedObject
            ) 
        { 
            Visual v = serializedObject as Visual;
 
            if (v == null)
            {
                throw new ArgumentException(ReachSR.Get(ReachSRID.MustBeOfType, "serializedObject", typeof(Visual)));
            } 

            XmlWriter pageWriter  = ((XpsSerializationManager)SerializationManager). 
                                    PackagingPolicy.AcquireXmlWriterForPage(); 

            XmlWriter resWriter   = ((XpsSerializationManager)SerializationManager). 
                                    PackagingPolicy.AcquireXmlWriterForResourceDictionary();

            SerializeTree(v, resWriter, pageWriter);
        } 

        ///  
        /// 
        /// 
        internal 
        override
        void
        SerializeObject(
            SerializablePropertyContext serializedProperty 
            )
        { 
            // 
            // Do nothing here.
            // We do not support serializing visuals that come in as 
            // properties out of context of a FixedPage or a DocumentPage
            //
        }
 
        private
        void 
        SerializeTree( 
            Visual visual,
            XmlWriter resWriter, 
            XmlWriter bodyWriter
            )
        {
            Toolbox.StartEvent(Toolbox.DRXSERIALIZETREEGUID); 

            Size fixedPageSize = ((XpsSerializationManager)SerializationManager).FixedPageSize; 
 
            VisualTreeFlattener flattener  = ((XpsSerializationManager)SerializationManager).
                                              VisualSerializationService.AcquireVisualTreeFlattener(resWriter, 
                                                                                                    bodyWriter,
                                                                                                    fixedPageSize);

            Stack contextStack = new Stack(); 
            if (flattener.StartVisual(visual))
            { 
                contextStack.Push(new NodeContext(visual)); 
            }
 
            while (contextStack.Count > 0)
            {
                NodeContext ctx = contextStack.Peek();
 
                Visual v = ctx.GetNextChild();
                if (v != null) 
                { 
                    if (flattener.StartVisual(v))
                    { 
                        contextStack.Push(new NodeContext(v));
                    }
                }
                else 
                {
                    contextStack.Pop(); 
                    flattener.EndVisual(); 
                }
            } 

            Toolbox.EndEvent(Toolbox.DRXSERIALIZETREEGUID);
        }
 
        /// 
        /// 
        ///  
        internal
        override 
        void
        PersistObjectData(
            SerializableObjectContext   serializableObjectContext
            ) 
        {
            // 
            // Do nothing here 
            //
        } 

        /// 
        ///
        ///  
        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));
            } 
        } 

        #region Internal Methods 

        /// 
        ///
        ///  
        internal
        bool 
        SerializeDisguisedVisual( 
            object serializedObject
            ) 
        {
            Visual v = serializedObject as Visual;

            if (v == null) 
            {
                throw new ArgumentException(ReachSR.Get(ReachSRID.MustBeOfType, "serializedObject", typeof(Visual))); 
            } 

            XmlWriter           pageWriter  = ((XpsSerializationManager)SerializationManager). 
                                              PackagingPolicy.AcquireXmlWriterForPage();

            XmlWriter           resWriter   = ((XpsSerializationManager)SerializationManager).
                                              PackagingPolicy.AcquireXmlWriterForResourceDictionary(); 

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

            return flattener.StartVisual(v); 
        }
 
        #endregion Internal Methods 

    }; 

    class NodeContext
    {
        #region Constructor 

        public NodeContext(Visual v) 
        { 
            nodeVisual = v;
            index = 0; 
        }

        #endregion Constructor
 
        #region Public properties
 
        public Visual NodeVisual 
        {
            get 
            {
                return nodeVisual;
            }
        } 

        #endregion Public properties 
 
        #region Public methods
 
        public Visual GetNextChild()
        {
            Visual child = null;
 
            if (index < VisualTreeHelper.GetChildrenCount(nodeVisual))
            { 
                // VisualTreeFlattener will flatten Viewport3DVisual into an image.  We shouldn't 
                // be attempting to walk Visual3D children.
                child = (Visual) VisualTreeHelper.GetChild(nodeVisual, index); 
                index++;
            }

            return child; 
        }
 
        #endregion Public methods 

        #region Private data 

        private Visual nodeVisual;
        private int index;
 
        #endregion Private data
    } 
} 


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