XpsResourcePolicy.cs source code in C# .NET

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Code:

/ DotNET / DotNET / 8.0 / untmp / WIN_WINDOWS / lh_tools_devdiv_wpf / Windows / wcp / Print / Reach / Packaging / XpsResourcePolicy.cs / 1 / XpsResourcePolicy.cs

                            /*++ 

    Copyright (C) 2004 - 2005 Microsoft Corporation
    All rights reserved.
 
    Module Name:
        XpsResourcePolicy.cs 
 
    Abstract:
        This file contains the definition  and implementation 
        for the XpsResourcePolicy class.  This class controls
        how resources are shared and serialized within the Xps
        package.
 
    Author:
        [....] ([....]) 1-December-2004 
 
    Revision History:
    07/12/2005: [....]: Reach -> Xps 
--*/

using System;
using System.Collections.Generic; 
using System.Windows.Xps.Serialization;
 
namespace System.Windows.Xps.Packaging 
{
    ///  
    ///
    /// 
    internal class XpsResourcePolicy : IServiceProvider
    { 
        #region Constructors
 
        ///  
        /// Constructs an instance of a XpsResourcePolicy used to
        /// determine how Xps resources are shared/stores/converted 
        /// when being added to the Xps package.
        /// 
        public
        XpsResourcePolicy( 
            XpsResourceSharing sharingMode
            ) 
        { 
            _sharingMode = sharingMode;
 
            _imageCrcTable = null;
            _imageUriHashTable = null;
            _currentPageImageTable = null;
 
            _colorContextTable = null;
            _currentPageColorContextTable = null; 
 
            _resourceDictionaryTable = null;
            _currentPageResourceDictionaryTable = null; 
        }

        #endregion Constructors
 
        #region Public properties
 
        ///  
        /// Gets the current sharing mode for this resource policy.
        ///  
        public XpsResourceSharing ResourceSharingMode
        {
            get
            { 
                return _sharingMode;
            } 
        } 

        #endregion Public properties 

        #region Public methods

        ///  
        /// This method registers a resource service with this resource
        /// policy for use by the packaging and serialization APIs. 
        ///  
        /// service or serviceType is null..
        /// serviceType has already been registered.. 
        public
        void
        RegisterService(
            object      service, 
            Type        serviceType
            ) 
        { 
            if (serviceType == null)
            { 
                throw new ArgumentNullException("serviceType");
            }
            if (service == null)
            { 
                throw new ArgumentNullException("service");
            } 
 
            if (!_objDict.ContainsKey(serviceType))
            { 
                _objDict.Add(serviceType, service);
            }
            else if (_objDict[serviceType] != service)
            { 
                throw new XpsPackagingException(ReachSR.Get(ReachSRID.ReachPackaging_ServiceTypeAlreadyAdded, serviceType));
            } 
        } 

        internal 
        bool
        SubsetComplete(INode node)
        {
 
            FontSubsetterCommitPolicies signal = FontSubsetterCommitPolicies.CommitPerPage;
            bool validSubsetNode = true; 
            bool subsetComplete = false; 
            if( node is IXpsFixedDocumentSequenceWriter )
            { 
                signal  = FontSubsetterCommitPolicies.CommitEntireSequence;
            }
            else
            if( node is IXpsFixedDocumentWriter ) 
            {
                signal  = FontSubsetterCommitPolicies.CommitPerDocument; 
            } 
            else
            if( node is IXpsFixedPageWriter ) 
            {
                signal  = FontSubsetterCommitPolicies.CommitPerPage;
             }
            else 
            {
                validSubsetNode = false; 
            } 

            if( validSubsetNode ) 
            {
                XpsFontSerializationService fontService = (XpsFontSerializationService)GetService(typeof(XpsFontSerializationService));
                if( fontService != null )
                { 
                    XpsFontSubsetter fontSubsetter = fontService.FontSubsetter;
                    subsetComplete = fontSubsetter.CommitFontSubsetsSignal(signal); 
                } 
            }
            return subsetComplete; 
        }


        #endregion Public methods 

        #region Protected methods 
 
        /// 
        /// Retrieves a service interface given the 
        /// specified service type.
        /// 
        /// 
        /// Service type to retrieve. 
        /// 
        ///  
        /// A instance of the service interface. 
        /// 
        internal 
        object
        GetService(
            Type serviceType
            ) 
        {
            object service = null; 
 
            if (_objDict.ContainsKey(serviceType))
            { 
                service = _objDict[serviceType];
            }

            return service; 
        }
 
        #endregion Protected methods 

        #region IServiceProvider implementation 

        object
        IServiceProvider.GetService(
            Type        serviceType 
            )
        { 
            return GetService(serviceType); 
        }
 
        #endregion IServiceProvider implementation

        #region Internal Properties
 
        internal
        Dictionary 
        ImageCrcTable 
        {
            get 
            {
                return _imageCrcTable;
            }
            set 
            {
                _imageCrcTable = value; 
            } 
        }
 
        internal
        Dictionary
        ImageUriHashTable
        { 
            get
            { 
                return _imageUriHashTable; 
            }
            set 
            {
                _imageUriHashTable = value;
            }
        } 

 
 

        internal 
        Dictionary
        CurrentPageImageTable
        {
            get 
            {
                return _currentPageImageTable; 
            } 
            set
            { 
                _currentPageImageTable = value;
            }
        }
 
        internal
        Dictionary 
        ColorContextTable 
        {
            get 
            {
                return _colorContextTable;
            }
            set 
            {
                _colorContextTable = value; 
            } 
        }
 
        internal
        Dictionary
        CurrentPageColorContextTable
        { 
            get
            { 
                return _currentPageColorContextTable; 
            }
            set 
            {
                _currentPageColorContextTable = value;
            }
        } 

        internal 
        Dictionary 
        ResourceDictionaryTable
        { 
            get
            {
                return _resourceDictionaryTable;
            } 
            set
            { 
                _resourceDictionaryTable = value; 
            }
        } 

        internal
        Dictionary
        CurrentPageResourceDictionaryTable 
        {
            get 
            { 
                return _currentPageResourceDictionaryTable;
            } 
            set
            {
                _currentPageResourceDictionaryTable = value;
            } 
        }
 
        #endregion Internal Properties 

        #region Private data 

        private
        Dictionary     _imageCrcTable;
 
        private
        Dictionary             _imageUriHashTable; 
 
        private
        Dictionary     _currentPageImageTable; 

        private
        Dictionary        _colorContextTable;
 
        private
        Dictionary        _currentPageColorContextTable; 
 
        private
        Dictionary        _resourceDictionaryTable; 

        private
        Dictionary        _currentPageResourceDictionaryTable;
 
        private
        XpsResourceSharing          _sharingMode; 
 
        private
        Dictionary    _objDict = new Dictionary(); 

        #endregion Private data
    }
 
    /// 
    /// 
    ///  
    public enum XpsResourceSharing
    { 
        /// 
        ///
        /// 
        ShareResources = 0, 
        /// 
        /// 
        ///  
        NoResourceSharing = 1
    } 
}

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

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